/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:expandtab:shiftwidth=2:tabstop=2:
*/
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "nsWindow.h"
#include <algorithm>
#include <cstdint>
#include <dlfcn.h>
#include <gdk/gdkkeysyms.h>
#include <wchar.h>
#include "VsyncSource.h"
#include "gfx2DGlue.h"
#include "gfxContext.h"
#include "gfxImageSurface.h"
#include "gfxPlatformGtk.h"
#include "gfxUtils.h"
#include "GLContextProvider.h"
#include "GLContext.h"
#include "GtkCompositorWidget.h"
#include "gtkdrawing.h"
#include "imgIContainer.h"
#include "InputData.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/Assertions.h"
#include "mozilla/Components.h"
#include "mozilla/GRefPtr.h"
#include "mozilla/dom/Document.h"
#include "mozilla/dom/WheelEventBinding.h"
#include "mozilla/gfx/2D.h"
#include "mozilla/gfx/gfxVars.h"
#include "mozilla/gfx/GPUProcessManager.h"
#include "mozilla/gfx/HelpersCairo.h"
#include "mozilla/layers/APZThreadUtils.h"
#include "mozilla/layers/LayersTypes.h"
#include "mozilla/layers/CompositorBridgeChild.h"
#include "mozilla/layers/CompositorBridgeParent.h"
#include "mozilla/layers/CompositorThread.h"
#include "mozilla/layers/KnowsCompositor.h"
#include "mozilla/layers/WebRenderBridgeChild.h"
#include "mozilla/layers/WebRenderLayerManager.h"
#include "mozilla/layers/APZInputBridge.h"
#include "mozilla/layers/IAPZCTreeManager.h"
#include "mozilla/Likely.h"
#include "mozilla/Maybe.h"
#include "mozilla/MiscEvents.h"
#include "mozilla/MouseEvents.h"
#include "mozilla/NativeKeyBindingsType.h"
#include "mozilla/Preferences.h"
#include "mozilla/PresShell.h"
#include "mozilla/ProfilerLabels.h"
#include "mozilla/ScopeExit.h"
#include "mozilla/StaticPrefs_apz.h"
#include "mozilla/StaticPrefs_dom.h"
#include "mozilla/StaticPrefs_layout.h"
#include "mozilla/StaticPrefs_mozilla.h"
#include "mozilla/StaticPrefs_ui.h"
#include "mozilla/StaticPrefs_widget.h"
#include "mozilla/SwipeTracker.h"
#include "mozilla/TextEventDispatcher.h"
#include "mozilla/TextEvents.h"
#include "mozilla/TimeStamp.h"
#include "mozilla/UniquePtrExtensions.h"
#include "mozilla/WidgetUtils.h"
#include "mozilla/WritingModes.h"
#ifdef MOZ_X11
# include "mozilla/X11Util.h"
#endif
#include "mozilla/XREAppData.h"
#include "NativeKeyBindings.h"
#include "nsAppDirectoryServiceDefs.h"
#include "nsAppRunner.h"
#include "nsDragService.h"
#include "nsGTKToolkit.h"
#include "nsGtkKeyUtils.h"
#include "nsGtkCursors.h"
#include "nsGfxCIID.h"
#include "nsGtkUtils.h"
#include "nsIFile.h"
#include "nsIGSettingsService.h"
#include "nsIInterfaceRequestorUtils.h"
#include "nsImageToPixbuf.h"
#include "nsINode.h"
#include "nsIRollupListener.h"
#include "nsIScreenManager.h"
#include "nsIUserIdleServiceInternal.h"
#include "nsIWidgetListener.h"
#include "nsLayoutUtils.h"
#include "nsMenuPopupFrame.h"
#include "nsPresContext.h"
#include "nsShmImage.h"
#include "nsString.h"
#include "nsWidgetsCID.h"
#include "nsViewManager.h"
#include "nsXPLookAndFeel.h"
#include "prlink.h"
#include "Screen.h"
#include "ScreenHelperGTK.h"
#include "SystemTimeConverter.h"
#include "WidgetUtilsGtk.h"
#include "NativeMenuGtk.h"
#ifdef ACCESSIBILITY
# include "mozilla/a11y/LocalAccessible.h"
# include "mozilla/a11y/Platform.h"
# include "nsAccessibilityService.h"
#endif
#ifdef MOZ_X11
# include <gdk/gdkkeysyms-compat.h>
# include <X11/Xatom.h>
# include <X11/extensions/XShm.h>
# include <X11/extensions/shape.h>
# include "gfxXlibSurface.h"
# include "GLContextGLX.h" // for GLContextGLX::FindVisual()
# include "GLContextEGL.h" // for GLContextEGL::FindVisual()
# include "WindowSurfaceX11Image.h"
# include "WindowSurfaceX11SHM.h"
#endif
#ifdef MOZ_WAYLAND
# include <gdk/gdkkeysyms-compat.h>
# include "nsIClipboard.h"
# include "nsView.h"
#endif
using namespace mozilla;
using namespace mozilla::gfx;
using namespace mozilla::layers;
using namespace mozilla::widget;
#ifdef MOZ_X11
using mozilla::gl::GLContextEGL;
using mozilla::gl::GLContextGLX;
#endif
// Don't put more than this many rects in the dirty region, just fluff
// out to the bounding-box if there are more
#define MAX_RECTS_IN_REGION 100
#if !GTK_CHECK_VERSION(3, 18, 0)
struct _GdkEventTouchpadPinch {
GdkEventType type;
GdkWindow* window;
gint8 send_event;
gint8 phase;
gint8 n_fingers;
guint32 time;
gdouble x;
gdouble y;
gdouble dx;
gdouble dy;
gdouble angle_delta;
gdouble scale;
gdouble x_root, y_root;
guint state;
};
typedef enum {
GDK_TOUCHPAD_GESTURE_PHASE_BEGIN,
GDK_TOUCHPAD_GESTURE_PHASE_UPDATE,
GDK_TOUCHPAD_GESTURE_PHASE_END,
GDK_TOUCHPAD_GESTURE_PHASE_CANCEL
} GdkTouchpadGesturePhase;
gint GDK_TOUCHPAD_GESTURE_MASK = 1 << 24;
GdkEventType GDK_TOUCHPAD_PINCH = static_cast<GdkEventType>(42);
#endif
const gint kEvents = GDK_TOUCHPAD_GESTURE_MASK | GDK_EXPOSURE_MASK |
GDK_STRUCTURE_MASK | GDK_VISIBILITY_NOTIFY_MASK |
GDK_ENTER_NOTIFY_MASK | GDK_LEAVE_NOTIFY_MASK |
GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_SMOOTH_SCROLL_MASK | GDK_TOUCH_MASK | GDK_SCROLL_MASK |
GDK_POINTER_MOTION_MASK | GDK_PROPERTY_CHANGE_MASK;
/* utility functions */
static bool is_mouse_in_window(GdkWindow* aWindow, gdouble aMouseX,
gdouble aMouseY);
static nsWindow* get_window_for_gtk_widget(GtkWidget* widget);
static nsWindow* get_window_for_gdk_window(GdkWindow* window);
static GtkWidget* get_gtk_widget_for_gdk_window(GdkWindow* window);
static GdkCursor* get_gtk_cursor(nsCursor aCursor);
/* callbacks from widgets */
static gboolean expose_event_cb(GtkWidget* widget, cairo_t* cr);
static gboolean configure_event_cb(GtkWidget* widget, GdkEventConfigure* event);
static void size_allocate_cb(GtkWidget* widget, GtkAllocation* allocation);
static void toplevel_window_size_allocate_cb(GtkWidget* widget,
GtkAllocation* allocation);
static gboolean delete_event_cb(GtkWidget* widget, GdkEventAny* event);
static gboolean enter_notify_event_cb(GtkWidget* widget,
GdkEventCrossing* event);
static gboolean leave_notify_event_cb(GtkWidget* widget,
GdkEventCrossing* event);
static gboolean motion_notify_event_cb(GtkWidget* widget,
GdkEventMotion* event);
MOZ_CAN_RUN_SCRIPT static gboolean button_press_event_cb(GtkWidget* widget,
GdkEventButton* event);
static gboolean button_release_event_cb(GtkWidget* widget,
GdkEventButton* event);
static gboolean focus_in_event_cb(GtkWidget* widget, GdkEventFocus* event);
static gboolean focus_out_event_cb(GtkWidget* widget, GdkEventFocus* event);
static gboolean key_press_event_cb(GtkWidget* widget, GdkEventKey* event);
static gboolean key_release_event_cb(GtkWidget* widget, GdkEventKey* event);
static gboolean property_notify_event_cb(GtkWidget* widget,
GdkEventProperty* event);
static gboolean scroll_event_cb(GtkWidget* widget, GdkEventScroll* event);
static gboolean visibility_notify_event_cb(GtkWidget* widget,
GdkEventVisibility* event);
static void hierarchy_changed_cb(GtkWidget* widget,
GtkWidget* previous_toplevel);
static gboolean window_state_event_cb(GtkWidget* widget,
GdkEventWindowState* event);
static void settings_xft_dpi_changed_cb(GtkSettings* settings,
GParamSpec* pspec, nsWindow* data);
static void check_resize_cb(GtkContainer* container, gpointer user_data);
static void screen_composited_changed_cb(GdkScreen* screen, gpointer user_data);
static void widget_composited_changed_cb(GtkWidget* widget, gpointer user_data);
static void scale_changed_cb(GtkWidget* widget, GParamSpec* aPSpec,
gpointer aPointer);
static gboolean touch_event_cb(GtkWidget* aWidget, GdkEventTouch* aEvent);
static gboolean generic_event_cb(GtkWidget* widget, GdkEvent* aEvent);
static nsWindow* GetFirstNSWindowForGDKWindow(GdkWindow* aGdkWindow);
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifdef MOZ_X11
static GdkFilterReturn popup_take_focus_filter(GdkXEvent* gdk_xevent,
GdkEvent* event, gpointer data);
#endif /* MOZ_X11 */
#ifdef __cplusplus
}
#endif /* __cplusplus */
static gboolean drag_motion_event_cb(GtkWidget* aWidget,
GdkDragContext* aDragContext, gint aX,
gint aY, guint aTime, gpointer aData);
static void drag_leave_event_cb(GtkWidget* aWidget,
GdkDragContext* aDragContext, guint aTime,
gpointer aData);
static gboolean drag_drop_event_cb(GtkWidget* aWidget,
GdkDragContext* aDragContext, gint aX,
gint aY, guint aTime, gpointer aData);
static void drag_data_received_event_cb(GtkWidget* aWidget,
GdkDragContext* aDragContext, gint aX,
gint aY,
GtkSelectionData* aSelectionData,
guint aInfo, guint32 aTime,
gpointer aData);
/* initialization static functions */
static nsresult initialize_prefs(void);
static guint32 sLastUserInputTime = GDK_CURRENT_TIME;
static SystemTimeConverter<guint32>& TimeConverter() {
static SystemTimeConverter<guint32> sTimeConverterSingleton;
return sTimeConverterSingleton;
}
bool nsWindow::sTransparentMainWindow = false;
// forward declare from mozgtk
extern "C" MOZ_EXPORT void mozgtk_linker_holder();
namespace mozilla {
#ifdef MOZ_X11
class CurrentX11TimeGetter {
public:
explicit CurrentX11TimeGetter(GdkWindow* aWindow) : mWindow(aWindow) {}
guint32 GetCurrentTime() const { return gdk_x11_get_server_time(mWindow); }
void GetTimeAsyncForPossibleBackwardsSkew(const TimeStamp& aNow) {
// Check for in-flight request
if (!mAsyncUpdateStart.IsNull()) {
return;
}
mAsyncUpdateStart = aNow;
Display* xDisplay = GDK_WINDOW_XDISPLAY(mWindow);
Window xWindow = GDK_WINDOW_XID(mWindow);
unsigned char c = 'a';
Atom timeStampPropAtom = TimeStampPropAtom();
XChangeProperty(xDisplay, xWindow, timeStampPropAtom, timeStampPropAtom, 8,
PropModeReplace, &c, 1);
XFlush(xDisplay);
}
gboolean PropertyNotifyHandler(GtkWidget* aWidget, GdkEventProperty* aEvent) {
if (aEvent->atom != gdk_x11_xatom_to_atom(TimeStampPropAtom())) {
return FALSE;
}
guint32 eventTime = aEvent->time;
TimeStamp lowerBound = mAsyncUpdateStart;
TimeConverter().CompensateForBackwardsSkew(eventTime, lowerBound);
mAsyncUpdateStart = TimeStamp();
return TRUE;
}
private:
static Atom TimeStampPropAtom() {
return gdk_x11_get_xatom_by_name_for_display(gdk_display_get_default(),
"GDK_TIMESTAMP_PROP");
}
// This is safe because this class is stored as a member of mWindow and
// won't outlive it.
GdkWindow* mWindow;
TimeStamp mAsyncUpdateStart;
};
#endif
} // namespace mozilla
// The window from which the focus manager asks us to dispatch key events.
static nsWindow* gFocusWindow = nullptr;
static bool gBlockActivateEvent = false;
static bool gGlobalsInitialized = false;
static bool gUseAspectRatio = true;
static uint32_t gLastTouchID = 0;
// See Bug 1777269 for details. We don't know if the suspected leave notify
// event is a correct one when we get it.
// Store it and issue it later from enter notify event if it's correct,
// throw it away otherwise.
static GUniquePtr<GdkEventCrossing> sStoredLeaveNotifyEvent;
#define NS_WINDOW_TITLE_MAX_LENGTH 4095
// cursor cache
static GdkCursor* gCursorCache[eCursorCount];
// Sometimes this actually also includes the state of the modifier keys, but
// only the button state bits are used.
static guint gButtonState;
static inline int32_t GetBitmapStride(int32_t width) {
#if defined(MOZ_X11)
return (width + 7) / 8;
#else
return cairo_format_stride_for_width(CAIRO_FORMAT_A1, width);
#endif
}
static inline bool TimestampIsNewerThan(guint32 a, guint32 b) {
// Timestamps are just the least significant bits of a monotonically
// increasing function, and so the use of unsigned overflow arithmetic.
return a - b <= G_MAXUINT32 / 2;
}
static void UpdateLastInputEventTime(void* aGdkEvent) {
nsCOMPtr<nsIUserIdleServiceInternal> idleService =
do_GetService("@mozilla.org/widget/useridleservice;1");
if (idleService) {
idleService->ResetIdleTimeOut(0);
}
guint timestamp = gdk_event_get_time(static_cast<GdkEvent*>(aGdkEvent));
if (timestamp == GDK_CURRENT_TIME) {
return;
}
sLastUserInputTime = timestamp;
}
// Don't set parent (transient for) if nothing changes.
// gtk_window_set_transient_for() blows up wl_subsurfaces used by aWindow
// even if aParent is the same.
static void GtkWindowSetTransientFor(GtkWindow* aWindow, GtkWindow* aParent) {
GtkWindow* parent = gtk_window_get_transient_for(aWindow);
if (parent != aParent) {
gtk_window_set_transient_for(aWindow, aParent);
}
}
#define gtk_window_set_transient_for(a, b) \
{ \
MOZ_ASSERT_UNREACHABLE( \
"gtk_window_set_transient_for() can't be used directly."); \
}
nsWindow::nsWindow()
: mWindowVisibilityMutex("nsWindow::mWindowVisibilityMutex"),
mIsMapped(false),
mIsDestroyed(false),
mIsShown(false),
mNeedsShow(false),
mEnabled(true),
mCreated(false),
mHandleTouchEvent(false),
mIsDragPopup(false),
mCompositedScreen(gdk_screen_is_composited(gdk_screen_get_default())),
mIsAccelerated(false),
mIsAlert(false),
mWindowShouldStartDragging(false),
mHasMappedToplevel(false),
mRetryPointerGrab(false),
mPanInProgress(false),
mTitlebarBackdropState(false),
mIsChildWindow(false),
mAlwaysOnTop(false),
mNoAutoHide(false),
mIsTransparent(false),
mHasReceivedSizeAllocate(false),
mWidgetCursorLocked(false),
mUndecorated(false),
mPopupTrackInHierarchy(false),
mPopupTrackInHierarchyConfigured(false),
mHiddenPopupPositioned(false),
mTransparencyBitmapForTitlebar(false),
mHasAlphaVisual(false),
mPopupAnchored(false),
mPopupContextMenu(false),
mPopupMatchesLayout(false),
mPopupChanged(false),
mPopupTemporaryHidden(false),
mPopupClosed(false),
mPopupUseMoveToRect(false),
mWaitingForMoveToRectCallback(false),
mMovedAfterMoveToRect(false),
mResizedAfterMoveToRect(false),
mConfiguredClearColor(false),
mGotNonBlankPaint(false),
mNeedsToRetryCapturingMouse(false) {
mWindowType = WindowType::Child;
mSizeConstraints.mMaxSize = GetSafeWindowSize(mSizeConstraints.mMaxSize);
if (!gGlobalsInitialized) {
gGlobalsInitialized = true;
// It's OK if either of these fail, but it may not be one day.
initialize_prefs();
#ifdef MOZ_WAYLAND
// Wayland provides clipboard data to application on focus-in event
// so we need to init our clipboard hooks before we create window
// and get focus.
if (GdkIsWaylandDisplay()) {
nsCOMPtr<nsIClipboard> clipboard =
do_GetService("@mozilla.org/widget/clipboard;1");
NS_ASSERTION(clipboard, "Failed to init clipboard!");
}
#endif
}
// Dummy call to mozgtk to prevent the linker from removing
// the dependency with --as-needed.
// see toolkit/library/moz.build for details.
mozgtk_linker_holder();
}
nsWindow::~nsWindow() {
LOG("nsWindow::~nsWindow()");
Destroy();
}
/* static */
void nsWindow::ReleaseGlobals() {
for (auto& cursor : gCursorCache) {
if (cursor) {
g_object_unref(cursor);
cursor = nullptr;
}
}
}
void nsWindow::DispatchActivateEvent(void) {
#ifdef ACCESSIBILITY
DispatchActivateEventAccessible();
#endif // ACCESSIBILITY
if (mWidgetListener) mWidgetListener->WindowActivated();
}
void nsWindow::DispatchDeactivateEvent() {
if (mWidgetListener) {
mWidgetListener->WindowDeactivated();
}
#ifdef ACCESSIBILITY
DispatchDeactivateEventAccessible();
#endif // ACCESSIBILITY
}
void nsWindow::DispatchResized() {
LOG("nsWindow::DispatchResized() size [%d, %d]", (int)(mBounds.width),
(int)(mBounds.height));
mNeedsDispatchSize = LayoutDeviceIntSize(-1, -1);
if (mWidgetListener) {
mWidgetListener->WindowResized(this, mBounds.width, mBounds.height);
}
if (mAttachedWidgetListener) {
mAttachedWidgetListener->WindowResized(this, mBounds.width, mBounds.height);
}
}
void nsWindow::MaybeDispatchResized() {
if (mNeedsDispatchSize != LayoutDeviceIntSize(-1, -1) && !mIsDestroyed) {
mBounds.SizeTo(mNeedsDispatchSize);
// Check mBounds size
if (mCompositorSession &&
!wr::WindowSizeSanityCheck(mBounds.width, mBounds.height)) {
gfxCriticalNoteOnce << "Invalid mBounds in MaybeDispatchResized "
<< mBounds << " size state " << mSizeMode;
}
// Notify the GtkCompositorWidget of a ClientSizeChange
if (mCompositorWidgetDelegate) {
mCompositorWidgetDelegate->NotifyClientSizeChanged(GetClientSize());
}
DispatchResized();
}
}
nsIWidgetListener* nsWindow::GetListener() {
return mAttachedWidgetListener ? mAttachedWidgetListener : mWidgetListener;
}
nsresult nsWindow::DispatchEvent(WidgetGUIEvent* aEvent,
nsEventStatus& aStatus) {
#ifdef DEBUG
debug_DumpEvent(stdout, aEvent->mWidget, aEvent, "something", 0);
#endif
aStatus = nsEventStatus_eIgnore;
nsIWidgetListener* listener = GetListener();
if (listener) {
aStatus = listener->HandleEvent(aEvent, mUseAttachedEvents);
}
return NS_OK;
}
void nsWindow::OnDestroy(void) {
if (mOnDestroyCalled) {
return;
}
mOnDestroyCalled = true;
// Prevent deletion.
nsCOMPtr<nsIWidget> kungFuDeathGrip = this;
// release references to children, device context, toolkit + app shell
nsBaseWidget::OnDestroy();
// Remove association between this object and its parent and siblings.
nsBaseWidget::Destroy();
mParent = nullptr;
NotifyWindowDestroyed();
}
bool nsWindow::AreBoundsSane() {
// Check requested size, as mBounds might not have been updated.
return !mLastSizeRequest.IsEmpty();
}
void nsWindow::Destroy() {
MOZ_DIAGNOSTIC_ASSERT(NS_IsMainThread());
if (mIsDestroyed || !mCreated) {
return;
}
LOG("nsWindow::Destroy\n");
mIsDestroyed = true;
mCreated = false;
MozClearHandleID(mCompositorPauseTimeoutID, g_source_remove);
#ifdef MOZ_WAYLAND
// Shut down our local vsync source
if (mWaylandVsyncSource) {
mWaylandVsyncSource->Shutdown();
mWaylandVsyncSource = nullptr;
}
mWaylandVsyncDispatcher = nullptr;
UnlockNativePointer();
#endif
// Cancel (dragleave) the current drag session, if any.
RefPtr<nsDragService> dragService = nsDragService::GetInstance();
if (dragService) {
nsDragSession* dragSession =
static_cast<nsDragSession*>(dragService->GetCurrentSession(this));
if (dragSession && this == dragSession->GetMostRecentDestWindow()) {
dragSession->ScheduleLeaveEvent();
}
}
nsIRollupListener* rollupListener = nsBaseWidget::GetActiveRollupListener();
if (rollupListener) {
nsCOMPtr<nsIWidget> rollupWidget = rollupListener->GetRollupWidget();
if (static_cast<nsIWidget*>(this) == rollupWidget) {
rollupListener->Rollup({});
}
}
NativeShow(false);
MOZ_ASSERT(!gtk_widget_get_mapped(mShell));
MOZ_ASSERT(!gtk_widget_get_mapped(GTK_WIDGET(mContainer)));
ClearTransparencyBitmap();
DestroyLayerManager();
// mSurfaceProvider holds reference to this nsWindow so we need to explicitly
// clear it here to avoid nsWindow leak.
mSurfaceProvider.CleanupResources();
g_signal_handlers_disconnect_by_data(gtk_settings_get_default(), this);
if (mIMContext) {
mIMContext->OnDestroyWindow(this);
}
// make sure that we remove ourself as the focus window
if (gFocusWindow == this) {
LOG("automatically losing focus...\n");
gFocusWindow = nullptr;
}
if (sStoredLeaveNotifyEvent) {
nsWindow* window =
get_window_for_gdk_window(sStoredLeaveNotifyEvent->window);
if (window == this) {
sStoredLeaveNotifyEvent = nullptr;
}
}
// We need to detach accessible object here because mContainer is a custom
// widget and doesn't call gtk_widget_real_destroy() from destroy handler
// as regular widgets.
if (AtkObject* ac = gtk_widget_get_accessible(GTK_WIDGET(mContainer))) {
gtk_accessible_set_widget(GTK_ACCESSIBLE(ac), nullptr);
}
gtk_widget_destroy(mShell);
mShell = nullptr;
mContainer = nullptr;
MOZ_ASSERT(!mGdkWindow,
"mGdkWindow should be NULL when mContainer is destroyed");
#ifdef ACCESSIBILITY
if (mRootAccessible) {
mRootAccessible = nullptr;
}
#endif
// Save until last because OnDestroy() may cause us to be deleted.
OnDestroy();
}
nsIWidget* nsWindow::GetParent() { return mParent; }
float nsWindow::GetDPI() {
float dpi = 96.0f;
nsCOMPtr<nsIScreen> screen = GetWidgetScreen();
if (screen) {
screen->GetDpi(&dpi);
}
return dpi;
}
double nsWindow::GetDefaultScaleInternal() { return FractionalScaleFactor(); }
DesktopToLayoutDeviceScale nsWindow::GetDesktopToDeviceScale() {
#ifdef MOZ_WAYLAND
if (GdkIsWaylandDisplay()) {
return DesktopToLayoutDeviceScale(FractionalScaleFactor());
}
#endif
// In Gtk/X11, we manage windows using device pixels.
return DesktopToLayoutDeviceScale(1.0);
}
DesktopToLayoutDeviceScale nsWindow::GetDesktopToDeviceScaleByScreen() {
#ifdef MOZ_WAYLAND
// In Wayland there's no way to get absolute position of the window and use it
// to determine the screen factor of the monitor on which the window is
// placed. The window is notified of the current scale factor but not at this
// point, so the GdkScaleFactor can return wrong value which can lead to wrong
// popup placement. We need to use parent's window scale factor for the new
// one.
if (GdkIsWaylandDisplay()) {
nsView* view = nsView::GetViewFor(this);
if (view) {
nsView* parentView = view->GetParent();
if (parentView) {
nsIWidget* parentWidget = parentView->GetNearestWidget(nullptr);
if (parentWidget) {
return DesktopToLayoutDeviceScale(
parentWidget->RoundsWidgetCoordinatesTo());
}
NS_WARNING("Widget has no parent");
}
} else {
NS_WARNING("Cannot find widget view");
}
}
#endif
return nsBaseWidget::GetDesktopToDeviceScale();
}
// Reparent a child window to a new parent.
void nsWindow::SetParent(nsIWidget* aNewParent) {
LOG("nsWindow::SetParent() new parent %p", aNewParent);
if (!mIsChildWindow) {
NS_WARNING("Used by child widgets only");
return;
}
nsCOMPtr<nsIWidget> kungFuDeathGrip = this;
if (mParent) {
mParent->RemoveChild(this);
}
mParent = aNewParent;
// We're already deleted, quit.
if (!mGdkWindow || mIsDestroyed || !aNewParent) {
return;
}
aNewParent->AddChild(this);
auto* newParent = static_cast<nsWindow*>(aNewParent);
// New parent is deleted, quit.
if (newParent->mIsDestroyed) {
Destroy();
return;
}
GdkWindow* window = GetToplevelGdkWindow();
GdkWindow* parentWindow = newParent->GetToplevelGdkWindow();
LOG(" child GdkWindow %p set parent GdkWindow %p", window, parentWindow);
gdk_window_reparent(window, parentWindow, 0, 0);
SetHasMappedToplevel(newParent && newParent->mHasMappedToplevel);
}
bool nsWindow::WidgetTypeSupportsAcceleration() {
if (mWindowType == WindowType::Invisible) {
return false;
}
if (IsSmallPopup()) {
return false;
}
// Workaround for Bug 1479135
// We draw transparent popups on non-compositing screens by SW as we don't
// implement X shape masks in WebRender.
if (mWindowType == WindowType::Popup) {
return HasRemoteContent() && mCompositedScreen;
}
return true;
}
void nsWindow::ReparentNativeWidget(nsIWidget* aNewParent) {
MOZ_ASSERT(aNewParent, "null widget");
MOZ_ASSERT(!mIsDestroyed, "");
MOZ_ASSERT(!static_cast<nsWindow*>(aNewParent)->mIsDestroyed, "");
MOZ_ASSERT(
!mParent,
"nsWindow::ReparentNativeWidget() works on toplevel windows only.");
auto* newParent = static_cast<nsWindow*>(aNewParent);
GtkWindow* newParentWidget = GTK_WINDOW(newParent->GetGtkWidget());
LOG("nsWindow::ReparentNativeWidget new parent %p\n", newParent);
GtkWindowSetTransientFor(GTK_WINDOW(mShell), newParentWidget);
}
static void InitPenEvent(WidgetMouseEvent& aGeckoEvent, GdkEvent* aEvent) {
// Find the source of the event
GdkDevice* device = gdk_event_get_source_device(aEvent);
GdkInputSource eSource = gdk_device_get_source(device);
gdouble value;
// We distinguish touch screens from pens using the event type
// Eraser corresponds to the pen with the "erase" button pressed
if (eSource != GDK_SOURCE_PEN && eSource != GDK_SOURCE_ERASER) {
bool XWaylandPen = false;
#ifdef MOZ_X11
// Workaround : When using Xwayland, pens are reported as
// GDK_SOURCE_TOUCHSCREEN If eSource is GDK_SOURCE_TOUCHSCREEN and the
// GDK_AXIS_XTILT and GDK_AXIS_YTILT axes are reported then it's a pen and
// not a finger on a screen. Yes, that's a stupid heuristic but it works...
// Note, however, that the tilt values are not reliable
// Another approach could be use the device tool type, but that's only
// available in GTK > 3.22
XWaylandPen = (eSource == GDK_SOURCE_TOUCHSCREEN && GdkIsX11Display() &&
gdk_event_get_axis(aEvent, GDK_AXIS_XTILT, &value) &&
gdk_event_get_axis(aEvent, GDK_AXIS_YTILT, &value));
#endif
if (!XWaylandPen) {
return;
}
LOGW("InitPenEvent(): Is XWayland pen");
}
aGeckoEvent.mInputSource = dom::MouseEvent_Binding::MOZ_SOURCE_PEN;
aGeckoEvent.pointerId = 1;
// The range of xtilt and ytilt are -1 to 1. Normalize it to -90 to 90.
if (gdk_event_get_axis(aEvent, GDK_AXIS_XTILT, &value)) {
aGeckoEvent.tiltX = int32_t(NS_round(value * 90));
}
if (gdk_event_get_axis(aEvent, GDK_AXIS_YTILT, &value)) {
aGeckoEvent.tiltY = int32_t(NS_round(value * 90));
}
if (gdk_event_get_axis(aEvent, GDK_AXIS_PRESSURE, &value)) {
aGeckoEvent.mPressure = (float)value;
// Make sure the pression is acceptable
MOZ_ASSERT(aGeckoEvent.mPressure >= 0.0 && aGeckoEvent.mPressure <= 1.0);
}
LOGW("InitPenEvent(): pressure %f\n", aGeckoEvent.mPressure);
}
void nsWindow::SetModal(bool aModal) {
LOG("nsWindow::SetModal %d\n", aModal);
if (mIsDestroyed) {
return;
}
gtk_window_set_modal(GTK_WINDOW(mShell), aModal ? TRUE : FALSE);
}
// nsIWidget method, which means IsShown.
bool nsWindow::IsVisible() const { return mIsShown; }
bool nsWindow::IsMapped() const { return mIsMapped; }
void nsWindow::RegisterTouchWindow() {
mHandleTouchEvent = true;
mTouches.Clear();
}
LayoutDeviceIntPoint nsWindow::GetScreenEdgeSlop() {
if (DrawsToCSDTitlebar()) {
return GetClientOffset();
}
return {};
}
void nsWindow::ConstrainPosition(DesktopIntPoint& aPoint) {
if (!mShell || GdkIsWaylandDisplay()) {
return;
}
double dpiScale = GetDefaultScale().scale;
// we need to use the window size in logical screen pixels
int32_t logWidth = std::max(NSToIntRound(mBounds.width / dpiScale), 1);
int32_t logHeight = std::max(NSToIntRound(mBounds.height / dpiScale), 1);
/* get our playing field. use the current screen, or failing that
for any reason, use device caps for the default screen. */
nsCOMPtr<nsIScreenManager> screenmgr =
do_GetService("@mozilla.org/gfx/screenmanager;1");
if (!screenmgr) {
return;
}
nsCOMPtr<nsIScreen> screen;
screenmgr->ScreenForRect(aPoint.x, aPoint.y, logWidth, logHeight,
getter_AddRefs(screen));
// We don't have any screen so leave the coordinates as is
if (!screen) {
return;
}
// For normalized windows, use the desktop work area.
// For full screen windows, use the desktop.
DesktopIntRect screenRect = mSizeMode == nsSizeMode_Fullscreen
? screen->GetRectDisplayPix()
: screen->GetAvailRectDisplayPix();
// Expand for the decoration size if needed.
auto slop =
DesktopIntPoint::Round(GetScreenEdgeSlop() / GetDesktopToDeviceScale());
screenRect.Inflate(slop.x, slop.y);
if (aPoint.x < screenRect.x) {
aPoint.x = screenRect.x;
} else if (aPoint.x >= screenRect.XMost() - logWidth) {
aPoint.x = screenRect.XMost() - logWidth;
}
if (aPoint.y < screenRect.y) {
aPoint.y = screenRect.y;
} else if (aPoint.y >= screenRect.YMost() - logHeight) {
aPoint.y = screenRect.YMost() - logHeight;
}
}
void nsWindow::SetSizeConstraints(const SizeConstraints& aConstraints) {
mSizeConstraints.mMinSize = GetSafeWindowSize(aConstraints.mMinSize);
mSizeConstraints.mMaxSize = GetSafeWindowSize(aConstraints.mMaxSize);
ApplySizeConstraints();
}
bool nsWindow::DrawsToCSDTitlebar() const {
return mSizeMode == nsSizeMode_Normal &&
mGtkWindowDecoration == GTK_DECORATION_CLIENT && mDrawInTitlebar;
}
void nsWindow::AddCSDDecorationSize(int* aWidth, int* aHeight) {
if (mSizeMode != nsSizeMode_Normal || mUndecorated ||
mGtkWindowDecoration != GTK_DECORATION_CLIENT || !GdkIsWaylandDisplay() ||
!IsGnomeDesktopEnvironment()) {
return;
}
GtkBorder decorationSize = GetCSDDecorationSize(IsPopup());
*aWidth += decorationSize.left + decorationSize.right;
*aHeight += decorationSize.top + decorationSize.bottom;
}
#ifdef MOZ_WAYLAND
bool nsWindow::GetCSDDecorationOffset(int* aDx, int* aDy) {
if (!DrawsToCSDTitlebar()) {
return false;
}
GtkBorder decorationSize = GetCSDDecorationSize(IsPopup());
*aDx = decorationSize.left;
*aDy = decorationSize.top;
return true;
}
#endif
void nsWindow::ApplySizeConstraints() {
if (mShell) {
GdkGeometry geometry;
geometry.min_width =
DevicePixelsToGdkCoordRoundUp(mSizeConstraints.mMinSize.width);
geometry.min_height =
DevicePixelsToGdkCoordRoundUp(mSizeConstraints.mMinSize.height);
geometry.max_width =
DevicePixelsToGdkCoordRoundDown(mSizeConstraints.mMaxSize.width);
geometry.max_height =
DevicePixelsToGdkCoordRoundDown(mSizeConstraints.mMaxSize.height);
uint32_t hints = 0;
if (mSizeConstraints.mMinSize != LayoutDeviceIntSize()) {
if (GdkIsWaylandDisplay()) {
gtk_widget_set_size_request(GTK_WIDGET(mContainer), geometry.min_width,
geometry.min_height);
}
AddCSDDecorationSize(&geometry.min_width, &geometry.min_height);
hints |= GDK_HINT_MIN_SIZE;
}
if (mSizeConstraints.mMaxSize !=
LayoutDeviceIntSize(NS_MAXSIZE, NS_MAXSIZE)) {
AddCSDDecorationSize(&geometry.max_width, &geometry.max_height);
hints |= GDK_HINT_MAX_SIZE;
}
if (mAspectRatio != 0.0f && !mAspectResizer) {
geometry.min_aspect = mAspectRatio;
geometry.max_aspect = mAspectRatio;
hints |= GDK_HINT_ASPECT;
}
gtk_window_set_geometry_hints(GTK_WINDOW(mShell), nullptr, &geometry,
GdkWindowHints(hints));
}
}
void nsWindow::Show(bool aState) {
if (aState == mIsShown) {
return;
}
mIsShown = aState;
#ifdef MOZ_LOGGING
LOG("nsWindow::Show state %d frame %s\n", aState, GetFrameTag().get());
if (!aState && mSourceDragContext && GdkIsWaylandDisplay()) {
LOG(" closing Drag&Drop source window, D&D will be canceled!");
}
#endif
// Ok, someone called show on a window that isn't sized to a sane
// value. Mark this window as needing to have Show() called on it
// and return.
if ((aState && !AreBoundsSane()) || !mCreated) {
LOG("\tbounds are insane or window hasn't been created yet\n");
mNeedsShow = true;
return;
}
// If someone is hiding this widget, clear any needing show flag.
if (!aState) mNeedsShow = false;
#ifdef ACCESSIBILITY
if (aState && a11y::ShouldA11yBeEnabled()) CreateRootAccessible();
#endif
NativeShow(aState);
RefreshWindowClass();
}
void nsWindow::ResizeInt(const Maybe<LayoutDeviceIntPoint>& aMove,
LayoutDeviceIntSize aSize) {
LOG("nsWindow::ResizeInt w:%d h:%d\n", aSize.width, aSize.height);
const bool moved = aMove && *aMove != mBounds.TopLeft();
if (moved) {
mBounds.MoveTo(*aMove);
LOG(" with move to left:%d top:%d", aMove->x.value, aMove->y.value);
}
ConstrainSize(&aSize.width, &aSize.height);
LOG(" ConstrainSize: w:%d h;%d\n", aSize.width, aSize.height);
const bool resized = aSize != mLastSizeRequest || mBounds.Size() != aSize;
#if MOZ_LOGGING
LOG(" resized %d aSize [%d, %d] mLastSizeRequest [%d, %d] mBounds [%d, %d]",
resized, aSize.width, aSize.height, mLastSizeRequest.width,
mLastSizeRequest.height, mBounds.width, mBounds.height);
#endif
// For top-level windows, aSize should possibly be
// interpreted as frame bounds, but NativeMoveResize treats these as window
// bounds (Bug 581866).
mLastSizeRequest = aSize;
// Check size
if (mCompositorSession &&
!wr::WindowSizeSanityCheck(aSize.width, aSize.height)) {
gfxCriticalNoteOnce << "Invalid aSize in ResizeInt " << aSize
<< " size state " << mSizeMode;
}
// Recalculate aspect ratio when resized from DOM
if (mAspectRatio != 0.0) {
LockAspectRatio(true);
}
if (!mCreated) {
return;
}
if (!moved && !resized) {
LOG(" not moved or resized, quit");
return;
}
NativeMoveResize(moved, resized);
// We optimistically assume size changes immediately in two cases:
// 1. Override-redirect window: Size is controlled by only us.
// 2. Managed window that has not not yet received a size-allocate event:
// Resize() Callers expect initial sizes to be applied synchronously.
// If the size request is not honored, then we'll correct in
// OnSizeAllocate().
//
// When a managed window has already received a size-allocate, we cannot
// assume we'll always get a notification if our request does not get
// honored: "If the configure request has not changed, we don't ever resend
// it, because it could mean fighting the user or window manager."
// https://gitlab.gnome.org/GNOME/gtk/-/blob/3.24.31/gtk/gtkwindow.c#L9782
// So we don't update mBounds until OnSizeAllocate() when we know the
// request is granted.
bool isOrWillBeVisible = mHasReceivedSizeAllocate || mNeedsShow || mIsShown;
if (!isOrWillBeVisible ||
gtk_window_get_window_type(GTK_WINDOW(mShell)) == GTK_WINDOW_POPUP) {
mBounds.SizeTo(aSize);
if (mCompositorWidgetDelegate) {
mCompositorWidgetDelegate->NotifyClientSizeChanged(aSize);
}
DispatchResized();
}
}
void nsWindow::Resize(double aWidth, double aHeight, bool aRepaint) {
LOG("nsWindow::Resize %f %f\n", aWidth, aHeight);
double scale =
BoundsUseDesktopPixels() ? GetDesktopToDeviceScale().scale : 1.0;
auto size = LayoutDeviceIntSize::Round(scale * aWidth, scale * aHeight);
ResizeInt(Nothing(), size);
}
void nsWindow::Resize(double aX, double aY, double aWidth, double aHeight,
bool aRepaint) {
LOG("nsWindow::Resize [%f,%f] -> [%f x %f] repaint %d\n", aX, aY, aWidth,
aHeight, aRepaint);
double scale =
BoundsUseDesktopPixels() ? GetDesktopToDeviceScale().scale : 1.0;
auto size = LayoutDeviceIntSize::Round(scale * aWidth, scale * aHeight);
auto topLeft = LayoutDeviceIntPoint::Round(scale * aX, scale * aY);
ResizeInt(Some(topLeft), size);
}
void nsWindow::Enable(bool aState) { mEnabled = aState; }
bool nsWindow::IsEnabled() const { return mEnabled; }
void nsWindow::Move(double aX, double aY) {
double scale =
BoundsUseDesktopPixels() ? GetDesktopToDeviceScale().scale : 1.0;
int32_t x = NSToIntRound(aX * scale);
int32_t y = NSToIntRound(aY * scale);
LOG("nsWindow::Move to %d x %d\n", x, y);
if (mSizeMode != nsSizeMode_Normal && IsTopLevelWindowType()) {
LOG(" size state is not normal, bailing");
return;
}
// Since a popup window's x/y coordinates are in relation to to
// the parent, the parent might have moved so we always move a
// popup window.
LOG(" bounds %d x %d\n", mBounds.x, mBounds.y);
if (x == mBounds.x && y == mBounds.y && mWindowType != WindowType::Popup) {
LOG(" position is the same, return\n");
return;
}
// XXX Should we do some AreBoundsSane check here?
mBounds.x = x;
mBounds.y = y;
if (!mCreated) {
LOG(" is not created, return.\n");
return;
}
NativeMoveResize(/* move */ true, /* resize */ false);
}
bool nsWindow::IsPopup() const { return mWindowType == WindowType::Popup; }
bool nsWindow::IsWaylandPopup() const {
return GdkIsWaylandDisplay() && IsPopup();
}
static nsMenuPopupFrame* GetMenuPopupFrame(nsIFrame* aFrame) {
return do_QueryFrame(aFrame);
}
void nsWindow::AppendPopupToHierarchyList(nsWindow* aToplevelWindow) {
mWaylandToplevel = aToplevelWindow;
nsWindow* popup = aToplevelWindow;
while (popup && popup->mWaylandPopupNext) {
popup = popup->mWaylandPopupNext;
}
popup->mWaylandPopupNext = this;
mWaylandPopupPrev = popup;
mWaylandPopupNext = nullptr;
mPopupChanged = true;
mPopupClosed = false;
}
void nsWindow::RemovePopupFromHierarchyList() {
// We're already removed from the popup hierarchy
if (!IsInPopupHierarchy()) {
return;
}
mWaylandPopupPrev->mWaylandPopupNext = mWaylandPopupNext;
if (mWaylandPopupNext) {
mWaylandPopupNext->mWaylandPopupPrev = mWaylandPopupPrev;
mWaylandPopupNext->mPopupChanged = true;
}
mWaylandPopupNext = mWaylandPopupPrev = nullptr;
}
// Gtk refuses to map popup window with x < 0 && y < 0 relative coordinates
// see https://gitlab.gnome.org/GNOME/gtk/-/issues/4071
// as a workaround just fool around and place the popup temporary to 0,0.
bool nsWindow::WaylandPopupRemoveNegativePosition(int* aX, int* aY) {
// https://gitlab.gnome.org/GNOME/gtk/-/issues/4071 applies to temporary
// windows only
GdkWindow* window = GetToplevelGdkWindow();
if (!window || gdk_window_get_window_type(window) != GDK_WINDOW_TEMP) {
return false;
}
LOG("nsWindow::WaylandPopupRemoveNegativePosition()");
int x, y;
gtk_window_get_position(GTK_WINDOW(mShell), &x, &y);
bool moveBack = (x < 0 && y < 0);
if (moveBack) {
gtk_window_move(GTK_WINDOW(mShell), 0, 0);
if (aX) {
*aX = x;
}
if (aY) {
*aY = y;
}
}
gdk_window_get_geometry(window, &x, &y, nullptr, nullptr);
if (x < 0 && y < 0) {
gdk_window_move(window, 0, 0);
}
return moveBack;
}
void nsWindow::ShowWaylandPopupWindow() {
LOG("nsWindow::ShowWaylandPopupWindow. Expected to see visible.");
MOZ_ASSERT(IsWaylandPopup());
if (!mPopupTrackInHierarchy) {
LOG(" popup is not tracked in popup hierarchy, show it now");
gtk_widget_show(mShell);
return;
}
// Popup position was checked before gdk_window_move_to_rect() callback
// so just show it.
if (mPopupUseMoveToRect && mWaitingForMoveToRectCallback) {
LOG(" active move-to-rect callback, show it as is");
gtk_widget_show(mShell);
return;
}
if (gtk_widget_is_visible(mShell)) {
LOG(" is already visible, quit");
return;
}
int x, y;
bool moved = WaylandPopupRemoveNegativePosition(&x, &y);
gtk_widget_show(mShell);
if (moved) {
LOG(" move back to (%d, %d) and show", x, y);
gtk_window_move(GTK_WINDOW(mShell), x, y);
}
}
void nsWindow::WaylandPopupMarkAsClosed() {
LOG("nsWindow::WaylandPopupMarkAsClosed: [%p]\n", this);
mPopupClosed = true;
// If we have any child popup window notify it about
// parent switch.
if (mWaylandPopupNext) {
mWaylandPopupNext->mPopupChanged = true;
}
}
nsWindow* nsWindow::WaylandPopupFindLast(nsWindow* aPopup) {
while (aPopup && aPopup->mWaylandPopupNext) {
aPopup = aPopup->mWaylandPopupNext;
}
return aPopup;
}
// Hide and potentially removes popup from popup hierarchy.
void nsWindow::HideWaylandPopupWindow(bool aTemporaryHide,
bool aRemoveFromPopupList) {
LOG("nsWindow::HideWaylandPopupWindow: remove from list %d\n",
aRemoveFromPopupList);
if (aRemoveFromPopupList) {
RemovePopupFromHierarchyList();
}
if (!mPopupClosed) {
mPopupClosed = !aTemporaryHide;
}
bool visible = gtk_widget_is_visible(mShell);
LOG(" gtk_widget_is_visible() = %d\n", visible);
// Restore only popups which are really visible
mPopupTemporaryHidden = aTemporaryHide && visible;
// Hide only visible popups or popups closed pernamently.
if (visible) {
gtk_widget_hide(mShell);
// If there's pending Move-To-Rect callback and we hide the popup
// the callback won't be called any more.
mWaitingForMoveToRectCallback = false;
}
if (mPopupClosed) {
LOG(" Clearing mMoveToRectPopupSize\n");
mMoveToRectPopupSize = {};
#ifdef MOZ_WAYLAND
if (moz_container_wayland_is_waiting_to_show(mContainer)) {
// We need to clear rendering queue, see Bug 1782948.
LOG(" popup failed to show by Wayland compositor, clear rendering "
"queue.");
moz_container_wayland_clear_waiting_to_show_flag(mContainer);
ClearRenderingQueue();
}
#endif
}
}
void nsWindow::HideWaylandToplevelWindow() {
LOG("nsWindow::HideWaylandToplevelWindow: [%p]\n", this);
if (mWaylandPopupNext) {
nsWindow* popup = WaylandPopupFindLast(mWaylandPopupNext);
while (popup->mWaylandToplevel != nullptr) {
nsWindow* prev = popup->mWaylandPopupPrev;
popup->HideWaylandPopupWindow(/* aTemporaryHide */ false,
/* aRemoveFromPopupList */ true);
popup = prev;
}
}
WaylandStopVsync();
gtk_widget_hide(mShell);
}
void nsWindow::ShowWaylandToplevelWindow() {
MOZ_ASSERT(!IsWaylandPopup());
LOG("nsWindow::ShowWaylandToplevelWindow");
gtk_widget_show(mShell);
}
void nsWindow::WaylandPopupRemoveClosedPopups() {
LOG("nsWindow::WaylandPopupRemoveClosedPopups()");
nsWindow* popup = this;
while (popup) {
nsWindow* next = popup->mWaylandPopupNext;
if (popup->mPopupClosed) {
popup->HideWaylandPopupWindow(/* aTemporaryHide */ false,
/* aRemoveFromPopupList */ true);
}
popup = next;
}
}
// Hide all tooltips except the latest one.
void nsWindow::WaylandPopupHideTooltips() {
LOG("nsWindow::WaylandPopupHideTooltips");
MOZ_ASSERT(mWaylandToplevel == nullptr, "Should be called on toplevel only!");
nsWindow* popup = mWaylandPopupNext;
while (popup && popup->mWaylandPopupNext) {
if (popup->mPopupType == PopupType::Tooltip) {
LOG(" hidding tooltip [%p]", popup);
popup->WaylandPopupMarkAsClosed();
}
popup = popup->mWaylandPopupNext;
}
}
void nsWindow::WaylandPopupCloseOrphanedPopups() {
#ifdef MOZ_WAYLAND
LOG("nsWindow::WaylandPopupCloseOrphanedPopups");
MOZ_ASSERT(mWaylandToplevel == nullptr, "Should be called on toplevel only!");
nsWindow* popup = mWaylandPopupNext;
bool dangling = false;
while (popup) {
if (!dangling &&
moz_container_wayland_is_waiting_to_show(popup->GetMozContainer())) {
LOG(" popup [%p] is waiting to show, close all child popups", popup);
dangling = true;
} else if (dangling) {
popup->WaylandPopupMarkAsClosed();
}
popup = popup->mWaylandPopupNext;
}
#endif
}
// We can't show popups with remote content or overflow popups
// on top of regular ones.
// If there's any remote popup opened, close all parent popups of it.
void nsWindow::CloseAllPopupsBeforeRemotePopup() {
LOG("nsWindow::CloseAllPopupsBeforeRemotePopup");
MOZ_ASSERT(mWaylandToplevel == nullptr, "Should be called on toplevel only!");
// Don't waste time when there's only one popup opened.
if (!mWaylandPopupNext || mWaylandPopupNext->mWaylandPopupNext == nullptr) {
return;
}
// Find the first opened remote content popup
nsWindow* remotePopup = mWaylandPopupNext;
while (remotePopup) {
if (remotePopup->HasRemoteContent() ||
remotePopup->IsWidgetOverflowWindow()) {
LOG(" remote popup [%p]", remotePopup);
break;
}
remotePopup = remotePopup->mWaylandPopupNext;
}
if (!remotePopup) {
return;
}
// ...hide opened popups before the remote one.
nsWindow* popup = mWaylandPopupNext;
while (popup && popup != remotePopup) {
LOG(" hidding popup [%p]", popup);
popup->WaylandPopupMarkAsClosed();
popup = popup->mWaylandPopupNext;
}
}
static void GetLayoutPopupWidgetChain(
nsTArray<nsIWidget*>* aLayoutWidgetHierarchy) {
nsXULPopupManager* pm = nsXULPopupManager::GetInstance();
pm->GetSubmenuWidgetChain(aLayoutWidgetHierarchy);
aLayoutWidgetHierarchy->Reverse();
}
// Compare 'this' popup position in Wayland widget hierarchy
// (mWaylandPopupPrev/mWaylandPopupNext) with
// 'this' popup position in layout hierarchy.
//
// When aMustMatchParent is true we also request
// 'this' parents match, i.e. 'this' has the same parent in
// both layout and widget hierarchy.
bool nsWindow::IsPopupInLayoutPopupChain(
nsTArray<nsIWidget*>* aLayoutWidgetHierarchy, bool aMustMatchParent) {
int len = (int)aLayoutWidgetHierarchy->Length();
for (int i = 0; i < len; i++) {
if (this == (*aLayoutWidgetHierarchy)[i]) {
if (!aMustMatchParent) {
return true;
}
// Find correct parent popup for 'this' according to widget
// hierarchy. That means we need to skip closed popups.
nsWindow* parentPopup = nullptr;
if (mWaylandPopupPrev != mWaylandToplevel) {
parentPopup = mWaylandPopupPrev;
while (parentPopup != mWaylandToplevel && parentPopup->mPopupClosed) {
parentPopup = parentPopup->mWaylandPopupPrev;
}
}
if (i == 0) {
// We found 'this' popups as a first popup in layout hierarchy.
// It matches layout hierarchy if it's first widget also in
// wayland widget hierarchy (i.e. parent is null).
return parentPopup == nullptr;
}
return parentPopup == (*aLayoutWidgetHierarchy)[i - 1];
}
}
return false;
}
// Hide popups which are not in popup chain.
void nsWindow::WaylandPopupHierarchyHideByLayout(
nsTArray<nsIWidget*>* aLayoutWidgetHierarchy) {
LOG("nsWindow::WaylandPopupHierarchyHideByLayout");
MOZ_ASSERT(mWaylandToplevel == nullptr, "Should be called on toplevel only!");
// Hide all popups which are not in layout popup chain
nsWindow* popup = mWaylandPopupNext;
while (popup) {
// Don't check closed popups and drag source popups and tooltips.
if (!popup->mPopupClosed && popup->mPopupType != PopupType::Tooltip &&
!popup->mSourceDragContext) {
if (!popup->IsPopupInLayoutPopupChain(aLayoutWidgetHierarchy,
/* aMustMatchParent */ false)) {
LOG(" hidding popup [%p]", popup);
popup->WaylandPopupMarkAsClosed();
}
}
popup = popup->mWaylandPopupNext;
}
}
// Mark popups outside of layout hierarchy
void nsWindow::WaylandPopupHierarchyValidateByLayout(
nsTArray<nsIWidget*>* aLayoutWidgetHierarchy) {
LOG("nsWindow::WaylandPopupHierarchyValidateByLayout");
nsWindow* popup = mWaylandPopupNext;
while (popup) {
if (popup->mPopupType == PopupType::Tooltip) {
popup->mPopupMatchesLayout = true;
} else if (!popup->mPopupClosed) {
popup->mPopupMatchesLayout = popup->IsPopupInLayoutPopupChain(
aLayoutWidgetHierarchy, /* aMustMatchParent */ true);
LOG(" popup [%p] parent window [%p] matches layout %d\n", (void*)popup,
(void*)popup->mWaylandPopupPrev, popup->mPopupMatchesLayout);
}
popup = popup->mWaylandPopupNext;
}
}
void nsWindow::WaylandPopupHierarchyHideTemporary() {
LOG("nsWindow::WaylandPopupHierarchyHideTemporary()");
nsWindow* popup = WaylandPopupFindLast(this);
while (popup && popup != this) {
LOG(" temporary hidding popup [%p]", popup);
nsWindow* prev = popup->mWaylandPopupPrev;
popup->HideWaylandPopupWindow(/* aTemporaryHide */ true,
/* aRemoveFromPopupList */ false);
popup = prev;
}
}
void nsWindow::WaylandPopupHierarchyShowTemporaryHidden() {
LOG("nsWindow::WaylandPopupHierarchyShowTemporaryHidden()");
nsWindow* popup = this;
while (popup) {
if (popup->mPopupTemporaryHidden) {
popup->mPopupTemporaryHidden = false;
LOG(" showing temporary hidden popup [%p]", popup);
popup->ShowWaylandPopupWindow();
}
popup = popup->mWaylandPopupNext;
}
}
void nsWindow::WaylandPopupHierarchyCalculatePositions() {
LOG("nsWindow::WaylandPopupHierarchyCalculatePositions()");
// Set widget hierarchy in Gtk
nsWindow* popup = mWaylandToplevel->mWaylandPopupNext;
while (popup) {
LOG(" popup [%p] set parent window [%p]", (void*)popup,
(void*)popup->mWaylandPopupPrev);
GtkWindowSetTransientFor(GTK_WINDOW(popup->mShell),
GTK_WINDOW(popup->mWaylandPopupPrev->mShell));
popup = popup->mWaylandPopupNext;
}
popup = this;
while (popup) {
// Anchored window has mPopupPosition already calculated against
// its parent, no need to recalculate.
LOG(" popup [%p] bounds [%d, %d] -> [%d x %d]", popup,
(int)(popup->mBounds.x / FractionalScaleFactor()),
(int)(popup->mBounds.y / FractionalScaleFactor()),
(int)(popup->mBounds.width / FractionalScaleFactor()),
(int)(popup->mBounds.height / FractionalScaleFactor()));
#ifdef MOZ_LOGGING
if (LOG_ENABLED()) {
if (nsMenuPopupFrame* popupFrame = GetMenuPopupFrame(GetFrame())) {
auto r = LayoutDeviceRect::FromAppUnitsRounded(
popupFrame->GetRect(),
popupFrame->PresContext()->AppUnitsPerDevPixel());
LOG(" popup [%p] layout [%d, %d] -> [%d x %d]", popup, r.x, r.y,
r.width, r.height);
}
}
#endif
if (popup->WaylandPopupIsFirst()) {
LOG(" popup [%p] has toplevel as parent", popup);
popup->mRelativePopupPosition = popup->mPopupPosition;
} else {
if (popup->mPopupAnchored) {
LOG(" popup [%p] is anchored", popup);
if (!popup->mPopupMatchesLayout) {
NS_WARNING("Anchored popup does not match layout!");
}
}
GdkPoint parent = popup->WaylandGetParentPosition();
LOG(" popup [%p] uses transformed coordinates\n", popup);
LOG(" parent position [%d, %d]\n", parent.x, parent.y);
LOG(" popup position [%d, %d]\n", popup->mPopupPosition.x,
popup->mPopupPosition.y);
popup->mRelativePopupPosition.x = popup->mPopupPosition.x - parent.x;
popup->mRelativePopupPosition.y = popup->mPopupPosition.y - parent.y;
}
LOG(" popup [%p] transformed popup coordinates from [%d, %d] to [%d, %d]",
popup, popup->mPopupPosition.x, popup->mPopupPosition.y,
popup->mRelativePopupPosition.x, popup->mRelativePopupPosition.y);
popup = popup->mWaylandPopupNext;
}
}
// The MenuList popups are used as dropdown menus for example in WebRTC
// microphone/camera chooser or autocomplete widgets.
bool nsWindow::WaylandPopupIsMenu() {
nsMenuPopupFrame* menuPopupFrame = GetMenuPopupFrame(GetFrame());
if (menuPopupFrame) {
return mPopupType == PopupType::Menu && !menuPopupFrame->IsMenuList();
}
return false;
}
bool nsWindow::WaylandPopupIsContextMenu() {
nsMenuPopupFrame* popupFrame = GetMenuPopupFrame(GetFrame());
if (!popupFrame) {
return false;
}
return popupFrame->IsContextMenu();
}
bool nsWindow::WaylandPopupIsPermanent() {
nsMenuPopupFrame* popupFrame = GetMenuPopupFrame(GetFrame());
if (!popupFrame) {
// We can always hide popups without frames.
return false;
}
return popupFrame->IsNoAutoHide();
}
bool nsWindow::WaylandPopupIsAnchored() {
nsMenuPopupFrame* popupFrame = GetMenuPopupFrame(GetFrame());
if (!popupFrame) {
// We can always hide popups without frames.
return false;
}
return !!popupFrame->GetAnchor();
}
bool nsWindow::IsWidgetOverflowWindow() {
if (this->GetFrame() && this->GetFrame()->GetContent()->GetID()) {
nsCString nodeId;
this->GetFrame()->GetContent()->GetID()->ToUTF8String(nodeId);
return nodeId.Equals("widget-overflow");
}
return false;
}
bool nsWindow::WaylandPopupIsFirst() {
return !mWaylandPopupPrev || !mWaylandPopupPrev->mWaylandToplevel;
}
nsWindow* nsWindow::GetEffectiveParent() {
GtkWindow* parentGtkWindow = gtk_window_get_transient_for(GTK_WINDOW(mShell));
if (!parentGtkWindow || !GTK_IS_WIDGET(parentGtkWindow)) {
return nullptr;
}
return get_window_for_gtk_widget(GTK_WIDGET(parentGtkWindow));
}
GdkPoint nsWindow::WaylandGetParentPosition() {
GdkPoint topLeft = {0, 0};
nsWindow* window = GetEffectiveParent();
if (window->IsPopup()) {
topLeft = DevicePixelsToGdkPointRoundDown(window->mBounds.TopLeft());
}
LOG("nsWindow::WaylandGetParentPosition() [%d, %d]\n", topLeft.x, topLeft.y);
return topLeft;
}
#ifdef MOZ_LOGGING
void nsWindow::LogPopupHierarchy() {
if (!LOG_ENABLED()) {
return;
}
LOG("Widget Popup Hierarchy:\n");
if (!mWaylandToplevel->mWaylandPopupNext) {
LOG(" Empty\n");
} else {
int indent = 4;
nsWindow* popup = mWaylandToplevel->mWaylandPopupNext;
while (popup) {
nsPrintfCString indentString("%*s", indent, " ");
LOG("%s %s %s nsWindow [%p] Menu %d Permanent %d ContextMenu %d "
"Anchored %d Visible %d MovedByRect %d\n",
indentString.get(), popup->GetFrameTag().get(),
popup->GetPopupTypeName().get(), popup, popup->WaylandPopupIsMenu(),
popup->WaylandPopupIsPermanent(), popup->mPopupContextMenu,
popup->mPopupAnchored, gtk_widget_is_visible(popup->mShell),
popup->mPopupUseMoveToRect);
indent += 4;
popup = popup->mWaylandPopupNext;
}
}
LOG("Layout Popup Hierarchy:\n");
AutoTArray<nsIWidget*, 5> widgetChain;
GetLayoutPopupWidgetChain(&widgetChain);
if (widgetChain.Length() == 0) {
LOG(" Empty\n");
} else {
for (unsigned long i = 0; i < widgetChain.Length(); i++) {
nsWindow* window = static_cast<nsWindow*>(widgetChain[i]);
nsPrintfCString indentString("%*s", (int)(i + 1) * 4, " ");
if (window) {
LOG("%s %s %s nsWindow [%p] Menu %d Permanent %d ContextMenu %d "
"Anchored %d Visible %d MovedByRect %d\n",
indentString.get(), window->GetFrameTag().get(),
window->GetPopupTypeName().get(), window,
window->WaylandPopupIsMenu(), window->WaylandPopupIsPermanent(),
window->mPopupContextMenu, window->mPopupAnchored,
gtk_widget_is_visible(window->mShell), window->mPopupUseMoveToRect);
} else {
LOG("%s null window\n", indentString.get());
}
}
}
}
#endif
nsWindow* nsWindow::GetTopmostWindow() {
if (nsView* view = nsView::GetViewFor(this)) {
if (nsView* parentView = view->GetParent()) {
if (nsIWidget* parentWidget = parentView->GetNearestWidget(nullptr)) {
return static_cast<nsWindow*>(parentWidget);
}
}
}
return nullptr;
}
// Configure Wayland popup. If true is returned we need to track popup
// in popup hierarchy. Otherwise we just show it as is.
bool nsWindow::WaylandPopupConfigure() {
if (mIsDragPopup) {
return false;
}
// Don't track popups without frame
nsMenuPopupFrame* popupFrame = GetMenuPopupFrame(GetFrame());
if (!popupFrame) {
return false;
}
// Popup state can be changed, see Bug 1728952.
bool permanentStateMatches =
mPopupTrackInHierarchy == !WaylandPopupIsPermanent();
// Popup permanent state (noautohide attribute) can change during popup life.
if (mPopupTrackInHierarchyConfigured && permanentStateMatches) {
return mPopupTrackInHierarchy;
}
// Configure persistent popup params only once.
// WaylandPopupIsAnchored() can give it wrong value after
// nsMenuPopupFrame::MoveTo() call which we use in move-to-rect callback
// to position popup after wayland position change.
if (!mPopupTrackInHierarchyConfigured) {
mPopupAnchored = WaylandPopupIsAnchored();
mPopupContextMenu = WaylandPopupIsContextMenu();
}
LOG("nsWindow::WaylandPopupConfigure tracked %d anchored %d hint %d\n",
mPopupTrackInHierarchy, mPopupAnchored, int(mPopupType));
// Permanent state changed and popup is mapped.
// We need to switch popup type but that's done when popup is mapped
// by Gtk so we need to unmap the popup here.
// It will be mapped again by gtk_widget_show().
if (!permanentStateMatches && mIsMapped) {
LOG(" permanent state change from %d to %d, unmapping",
mPopupTrackInHierarchy, !WaylandPopupIsPermanent());
gtk_widget_unmap(mShell);
}
mPopupTrackInHierarchy = !WaylandPopupIsPermanent();
LOG(" tracked in hierarchy %d\n", mPopupTrackInHierarchy);
// See gdkwindow-wayland.c and
// should_map_as_popup()/should_map_as_subsurface()
GdkWindowTypeHint gtkTypeHint;
switch (mPopupType) {
case PopupType::Menu:
// GDK_WINDOW_TYPE_HINT_POPUP_MENU is mapped as xdg_popup by default.
// We use this type for all menu popups.
gtkTypeHint = GDK_WINDOW_TYPE_HINT_POPUP_MENU;
LOG(" popup type Menu");
break;
case PopupType::Tooltip:
gtkTypeHint = GDK_WINDOW_TYPE_HINT_TOOLTIP;
LOG(" popup type Tooltip");
break;
default:
gtkTypeHint = GDK_WINDOW_TYPE_HINT_UTILITY;
LOG(" popup type Utility");
break;
}
if (!mPopupTrackInHierarchy) {
// GDK_WINDOW_TYPE_HINT_UTILITY is mapped as wl_subsurface
// by default.
LOG(" not tracked in popup hierarchy, switch to Utility");
gtkTypeHint = GDK_WINDOW_TYPE_HINT_UTILITY;
}
gtk_window_set_type_hint(GTK_WINDOW(mShell), gtkTypeHint);
mPopupTrackInHierarchyConfigured = true;
return mPopupTrackInHierarchy;
}
bool nsWindow::IsInPopupHierarchy() {
return mPopupTrackInHierarchy && mWaylandToplevel && mWaylandPopupPrev;
}
void nsWindow::AddWindowToPopupHierarchy() {
LOG("nsWindow::AddWindowToPopupHierarchy\n");
if (!GetFrame()) {
LOG(" Window without frame cannot be added as popup!\n");
return;
}
// Check if we're already in the hierarchy
if (!IsInPopupHierarchy()) {
mWaylandToplevel = GetTopmostWindow();
AppendPopupToHierarchyList(mWaylandToplevel);
}
}
// Wayland keeps strong popup window hierarchy. We need to track active
// (visible) popup windows and make sure we hide popup on the same level
// before we open another one on that level. It means that every open
// popup needs to have an unique parent.
void nsWindow::UpdateWaylandPopupHierarchy() {
LOG("nsWindow::UpdateWaylandPopupHierarchy\n");
// This popup hasn't been added to popup hierarchy yet so no need to
// do any configurations.
if (!IsInPopupHierarchy()) {
LOG(" popup isn't in hierarchy\n");
return;
}
#ifdef MOZ_LOGGING
LogPopupHierarchy();
auto printPopupHierarchy = MakeScopeExit([&] { LogPopupHierarchy(); });
#endif
// Hide all tooltips without the last one. Tooltip can't be popup parent.
mWaylandToplevel->WaylandPopupHideTooltips();
// See Bug 1709254 / https://gitlab.gnome.org/GNOME/gtk/-/issues/5092
// It's possible that Wayland compositor refuses to show
// a popup although Gtk claims it's visible.
// We don't know if the popup is shown or not.
// To avoid application crash refuse to create any child of such invisible
// popup and close any child of it now.
mWaylandToplevel->WaylandPopupCloseOrphanedPopups();
// Check if we have any remote content / overflow window in hierarchy.
// We can't attach such widget on top of other popup.
mWaylandToplevel->CloseAllPopupsBeforeRemotePopup();
// Check if your popup hierarchy matches layout hierarchy.
// For instance we should not connect hamburger menu on top
// of context menu.
// Close all popups from different layout chains if possible.
AutoTArray<nsIWidget*, 5> layoutPopupWidgetChain;
GetLayoutPopupWidgetChain(&layoutPopupWidgetChain);
mWaylandToplevel->WaylandPopupHierarchyHideByLayout(&layoutPopupWidgetChain);
mWaylandToplevel->WaylandPopupHierarchyValidateByLayout(
&layoutPopupWidgetChain);
// Now we have Popup hierarchy complete.
// Find first unchanged (and still open) popup to start with hierarchy
// changes.
nsWindow* changedPopup = mWaylandToplevel->mWaylandPopupNext;
while (changedPopup) {
// Stop when parent of this popup was changed and we need to recalc
// popup position.
if (changedPopup->mPopupChanged) {
break;
}
// Stop when this popup is closed.
if (changedPopup->mPopupClosed) {
break;
}
changedPopup = changedPopup->mWaylandPopupNext;
}
// We don't need to recompute popup positions, quit now.
if (!changedPopup) {
LOG(" changed Popup is null, quit.\n");
return;
}
LOG(" first changed popup [%p]\n", (void*)changedPopup);
// Hide parent popups if necessary (there are layout discontinuity)
// reposition the popup and show them again.
changedPopup->WaylandPopupHierarchyHideTemporary();
nsWindow* parentOfchangedPopup = nullptr;
if (changedPopup->mPopupClosed) {
parentOfchangedPopup = changedPopup->mWaylandPopupPrev;
}
changedPopup->WaylandPopupRemoveClosedPopups();
// It's possible that changedPopup was removed from widget hierarchy,
// in such case use child popup of the removed one if there's any.
if (!changedPopup->IsInPopupHierarchy()) {
if (!parentOfchangedPopup || !parentOfchangedPopup->mWaylandPopupNext) {
LOG(" last popup was removed, quit.\n");
return;
}
changedPopup = parentOfchangedPopup->mWaylandPopupNext;
}
GetLayoutPopupWidgetChain(&layoutPopupWidgetChain);
mWaylandToplevel->WaylandPopupHierarchyValidateByLayout(
&layoutPopupWidgetChain);
changedPopup->WaylandPopupHierarchyCalculatePositions();
nsWindow* popup = changedPopup;
while (popup) {
const bool useMoveToRect = [&] {
if (!StaticPrefs::widget_wayland_use_move_to_rect_AtStartup()) {
return false; // Not available.
}
if (!popup->mPopupMatchesLayout) {
// We can use move_to_rect only when popups in popup hierarchy matches
// layout hierarchy as move_to_rect request that parent/child
// popups are adjacent.
return false;
}
if (popup->mPopupType == PopupType::Panel &&
popup->WaylandPopupIsFirst() &&
popup->WaylandPopupFitsToplevelWindow(/* aMove */ true)) {
// Workaround for https://gitlab.gnome.org/GNOME/gtk/-/issues/1986
//
// PopupType::Panel types are used for extension popups which may be
// resized. If such popup uses move-to-rect, we need to hide it before
// resize and show it again. That leads to massive flickering
// so use plain move if possible to avoid it.
//
// Bug 1760276 - don't use move-to-rect when popup is inside main
// Firefox window.
//
// Use it for first popups only due to another mutter bug
// https://gitlab.gnome.org/GNOME/gtk/-/issues/5089
// https://bugzilla.mozilla.org/show_bug.cgi?id=1784873
return false;
}
if (!popup->WaylandPopupIsFirst() &&
!popup->mWaylandPopupPrev->WaylandPopupIsFirst() &&
!popup->mWaylandPopupPrev->mPopupUseMoveToRect) {
// We can't use move-to-rect if there are more parents of
// wl_subsurface popups types.
//
// It's because wl_subsurface is ignored by xgd_popup
// (created by move-to-rect) so our popup scenario:
//
// toplevel -> xgd_popup(1) -> wl_subsurface(2) -> xgd_popup(3)
//
// looks for Wayland compositor as:
//
// toplevel -> xgd_popup(1) -> xgd_popup(3)
//
// If xgd_popup(1) and xgd_popup(3) are not connected
// move-to-rect applied to xgd_popup(3) fails and we get missing popup.
return false;
}
return true;
}();
LOG(" popup [%p] matches layout [%d] anchored [%d] first popup [%d] use "
"move-to-rect %d\n",
popup, popup->mPopupMatchesLayout, popup->mPopupAnchored,
popup->WaylandPopupIsFirst(), useMoveToRect);
popup->mPopupUseMoveToRect = useMoveToRect;
popup->WaylandPopupMoveImpl();
popup->mPopupChanged = false;
popup = popup->mWaylandPopupNext;
}
changedPopup->WaylandPopupHierarchyShowTemporaryHidden();
}
static void NativeMoveResizeCallback(GdkWindow* window,
const GdkRectangle* flipped_rect,
const GdkRectangle* final_rect,
gboolean flipped_x, gboolean flipped_y,
void* aWindow) {
LOG_POPUP("[%p] NativeMoveResizeCallback flipped_x %d flipped_y %d\n",
aWindow, flipped_x, flipped_y);
LOG_POPUP("[%p] new position [%d, %d] -> [%d x %d]", aWindow,
final_rect->x, final_rect->y, final_rect->width,
final_rect->height);
nsWindow* wnd = get_window_for_gdk_window(window);
wnd->NativeMoveResizeWaylandPopupCallback(final_rect, flipped_x, flipped_y);
}
// When popup is repositioned by widget code, we need to notify
// layout about it. It's because we control popup placement
// on widget on Wayland so layout may have old popup size/coordinates.
void nsWindow::WaylandPopupPropagateChangesToLayout(bool aMove, bool aResize) {
LOG("nsWindow::WaylandPopupPropagateChangesToLayout()");
if (aResize) {
LOG(" needSizeUpdate\n");
if (nsMenuPopupFrame* popupFrame = GetMenuPopupFrame(GetFrame())) {
RefPtr<PresShell> presShell = popupFrame->PresShell();
presShell->FrameNeedsReflow(popupFrame, IntrinsicDirty::None,
NS_FRAME_IS_DIRTY);
}
}
if (aMove) {
LOG(" needPositionUpdate, bounds [%d, %d]", mBounds.x, mBounds.y);
NotifyWindowMoved(mBounds.x, mBounds.y, ByMoveToRect::Yes);
}
}
void nsWindow::NativeMoveResizeWaylandPopupCallback(
const GdkRectangle* aFinalSize, bool aFlippedX, bool aFlippedY) {
// We're getting move-to-rect callback without move-to-rect call.
// That indicates a compositor bug. It happens when a window is hidden and
// shown again before move-to-rect callback is fired.
// It may lead to incorrect popup placement as we may call
// gtk_window_move() between hide & show.
// See Bug 1777919, 1789581.
#if MOZ_LOGGING
if (!mWaitingForMoveToRectCallback) {
LOG(" Bogus move-to-rect callback! Expect wrong popup coordinates.");
}
#endif
mWaitingForMoveToRectCallback = false;
bool movedByLayout = mMovedAfterMoveToRect;
bool resizedByLayout = mResizedAfterMoveToRect;
// Popup was moved between move-to-rect call and move-to-rect callback
// and the coordinates from move-to-rect callback are outdated.
if (movedByLayout || resizedByLayout) {
LOG(" Another move/resize called during waiting for callback\n");
mMovedAfterMoveToRect = false;
mResizedAfterMoveToRect = false;
// Fire another round of move/resize to reflect latest request
// from layout.
NativeMoveResize(movedByLayout, resizedByLayout);
return;
}
LOG(" orig mBounds [%d, %d] -> [%d x %d]\n", mBounds.x, mBounds.y,
mBounds.width, mBounds.height);
LayoutDeviceIntRect newBounds = [&] {
GdkRectangle finalRect = *aFinalSize;
GdkPoint parent = WaylandGetParentPosition();
finalRect.x += parent.x;
finalRect.y += parent.y;
return GdkRectToDevicePixels(finalRect);
}();
LOG(" new mBounds [%d, %d] -> [%d x %d]", newBounds.x, newBounds.y,
newBounds.width, newBounds.height);
bool needsPositionUpdate = newBounds.TopLeft() != mBounds.TopLeft();
bool needsSizeUpdate = newBounds.Size() != mLastSizeRequest;
if (needsSizeUpdate) {
// Wayland compositor changed popup size request from layout.
// Set the constraints to use them in nsMenuPopupFrame::SetPopupPosition().
// Beware that gtk_window_resize() requests sizes asynchronously and so
// newBounds might not have the size from the most recent
// gtk_window_resize().
if (newBounds.width < mLastSizeRequest.width) {
mMoveToRectPopupSize.width = newBounds.width;
}
if (newBounds.height < mLastSizeRequest.height) {
mMoveToRectPopupSize.height = newBounds.height;
}
LOG(" mMoveToRectPopupSize set to [%d, %d]", mMoveToRectPopupSize.width,
mMoveToRectPopupSize.height);
}
mBounds = newBounds;
// Check mBounds size
if (mCompositorSession &&
!wr::WindowSizeSanityCheck(mBounds.width, mBounds.height)) {
gfxCriticalNoteOnce << "Invalid mBounds in PopupCallback " << mBounds
<< " size state " << mSizeMode;
}
WaylandPopupPropagateChangesToLayout(needsPositionUpdate, needsSizeUpdate);
}
static GdkGravity PopupAlignmentToGdkGravity(int8_t aAlignment) {
switch (aAlignment) {
case POPUPALIGNMENT_NONE:
return GDK_GRAVITY_NORTH_WEST;
case POPUPALIGNMENT_TOPLEFT:
return GDK_GRAVITY_NORTH_WEST;
case POPUPALIGNMENT_TOPRIGHT:
return GDK_GRAVITY_NORTH_EAST;
case POPUPALIGNMENT_BOTTOMLEFT:
return GDK_GRAVITY_SOUTH_WEST;
case POPUPALIGNMENT_BOTTOMRIGHT:
return GDK_GRAVITY_SOUTH_EAST;
case POPUPALIGNMENT_LEFTCENTER:
return GDK_GRAVITY_WEST;
case POPUPALIGNMENT_RIGHTCENTER:
return GDK_GRAVITY_EAST;
case POPUPALIGNMENT_TOPCENTER:
return GDK_GRAVITY_NORTH;
case POPUPALIGNMENT_BOTTOMCENTER:
return GDK_GRAVITY_SOUTH;
}
return GDK_GRAVITY_STATIC;
}
bool nsWindow::IsPopupDirectionRTL() {
nsMenuPopupFrame* popupFrame = GetMenuPopupFrame(GetFrame());
return popupFrame && popupFrame->IsDirectionRTL();
}
// Position the popup directly by gtk_window_move() and try to keep it
// on screen by just moving it in scope of it's parent window.
//
// It's used when we position noautihode popup and we don't use xdg_positioner.
// See Bug 1718867
void nsWindow::WaylandPopupSetDirectPosition() {
GdkPoint topLeft = DevicePixelsToGdkPointRoundDown(mBounds.TopLeft());
GdkRectangle size = DevicePixelsToGdkSizeRoundUp(mLastSizeRequest);
LOG("nsWindow::WaylandPopupSetDirectPosition %d,%d -> %d x %d\n", topLeft.x,
topLeft.y, size.width, size.height);
mPopupPosition = {topLeft.x, topLeft.y};
if (mIsDragPopup) {
gtk_window_move(GTK_WINDOW(mShell), topLeft.x, topLeft.y);
gtk_window_resize(GTK_WINDOW(mShell), size.width, size.height);
// DND window is placed inside container so we need to make hard size
// request to ensure parent container is resized too.
gtk_widget_set_size_request(GTK_WIDGET(mShell), size.width, size.height);
return;
}
GtkWindow* parentGtkWindow = gtk_window_get_transient_for(GTK_WINDOW(mShell));
nsWindow* window = get_window_for_gtk_widget(GTK_WIDGET(parentGtkWindow));
if (!window) {
return;
}
GdkWindow* gdkWindow = window->GetGdkWindow();
if (!gdkWindow) {
return;
}
int parentWidth = gdk_window_get_width(gdkWindow);
int popupWidth = size.width;
int x;
gdk_window_get_position(gdkWindow, &x, nullptr);
// If popup is bigger than main window just center it.
if (popupWidth > parentWidth) {
mPopupPosition.x = -(parentWidth - popupWidth) / 2 + x;
} else {
if (IsPopupDirectionRTL()) {
// Stick with right window edge
if (mPopupPosition.x < x) {
mPopupPosition.x = x;
}
} else {
// Stick with left window edge
if (mPopupPosition.x + popupWidth > parentWidth + x) {
mPopupPosition.x = parentWidth + x - popupWidth;
}
}
}
LOG(" set position [%d, %d]\n", mPopupPosition.x, mPopupPosition.y);
gtk_window_move(GTK_WINDOW(mShell), mPopupPosition.x, mPopupPosition.y);
LOG(" set size [%d, %d]\n", size.width, size.height);
gtk_window_resize(GTK_WINDOW(mShell), size.width, size.height);
if (mPopupPosition.x != topLeft.x) {
mBounds.MoveTo(GdkPointToDevicePixels(mPopupPosition));
LOG(" setting new bounds [%d, %d]\n", mBounds.x, mBounds.y);
WaylandPopupPropagateChangesToLayout(/* move */ true, /* resize */ false);
}
}
bool nsWindow::WaylandPopupFitsToplevelWindow(bool aMove) {
LOG("nsWindow::WaylandPopupFitsToplevelWindow() move %d", aMove);
GtkWindow* parent = gtk_window_get_transient_for(GTK_WINDOW(mShell));
GtkWindow* tmp = parent;
while ((tmp = gtk_window_get_transient_for(GTK_WINDOW(parent)))) {
parent = tmp;
}
GdkWindow* toplevelGdkWindow = gtk_widget_get_window(GTK_WIDGET(parent));
if (!toplevelGdkWindow) {
NS_WARNING("Toplevel widget without GdkWindow?");
return false;
}
int parentWidth = gdk_window_get_width(toplevelGdkWindow);
int parentHeight = gdk_window_get_height(toplevelGdkWindow);
LOG(" parent size %d x %d", parentWidth, parentHeight);
GdkPoint topLeft = aMove ? mPopupPosition
: DevicePixelsToGdkPointRoundDown(mBounds.TopLeft());
GdkRectangle size = DevicePixelsToGdkSizeRoundUp(mLastSizeRequest);
LOG(" popup topleft %d, %d size %d x %d", topLeft.x, topLeft.y, size.width,
size.height);
int fits = topLeft.x >= 0 && topLeft.y >= 0 &&
topLeft.x + size.width <= parentWidth &&
topLeft.y + size.height <= parentHeight;
LOG(" fits %d", fits);
return fits;
}
void nsWindow::NativeMoveResizeWaylandPopup(bool aMove, bool aResize) {
GdkPoint topLeft = DevicePixelsToGdkPointRoundDown(mBounds.TopLeft());
GdkRectangle size = DevicePixelsToGdkSizeRoundUp(mLastSizeRequest);
LOG("nsWindow::NativeMoveResizeWaylandPopup Bounds %d,%d -> %d x %d move %d "
"resize %d\n",
topLeft.x, topLeft.y, size.width, size.height, aMove, aResize);
// Compositor may be confused by windows with width/height = 0
// and positioning such windows leads to Bug 1555866.
if (!AreBoundsSane()) {
LOG(" Bounds are not sane (width: %d height: %d)\n",
mLastSizeRequest.width, mLastSizeRequest.height);
return;
}
if (mWaitingForMoveToRectCallback) {
LOG(" waiting for move to rect, scheduling");
// mBounds position must not be overwritten before it is applied.
// OnConfigureEvent() will not set mBounds to an old position for
// GTK_WINDOW_POPUP.
MOZ_ASSERT(gtk_window_get_window_type(GTK_WINDOW(mShell)) ==
GTK_WINDOW_POPUP);
mMovedAfterMoveToRect = aMove;
mResizedAfterMoveToRect = aResize;
return;
}
mMovedAfterMoveToRect = false;
mResizedAfterMoveToRect = false;
bool trackedInHierarchy = WaylandPopupConfigure();
// Read popup position from layout if it was moved or newly created.
// This position is used by move-to-rect method as we need anchor and other
// info to place popup correctly.
// We need WaylandPopupConfigure() to be called before to have all needed
// popup info in place (mainly the anchored flag).
if (aMove) {
mPopupMoveToRectParams = WaylandPopupGetPositionFromLayout();
}
if (!trackedInHierarchy) {
WaylandPopupSetDirectPosition();
return;
}
if (aResize) {
LOG(" set size [%d, %d]\n", size.width, size.height);
gtk_window_resize(GTK_WINDOW(mShell), size.width, size.height);
}
if (!aMove && WaylandPopupFitsToplevelWindow(aMove)) {
// Popup position has not been changed and its position/size fits
// parent window so no need to reposition the window.
LOG(" fits parent window size, just resize\n");
return;
}
// Mark popup as changed as we're updating position/size.
mPopupChanged = true;
// Save popup position for former re-calculations when popup hierarchy
// is changed.
LOG(" popup position changed from [%d, %d] to [%d, %d]\n", mPopupPosition.x,
mPopupPosition.y, topLeft.x, topLeft.y);
mPopupPosition = {topLeft.x, topLeft.y};
UpdateWaylandPopupHierarchy();
}
struct PopupSides {
Maybe<Side> mVertical;
Maybe<Side> mHorizontal;
};
static PopupSides SidesForPopupAlignment(int8_t aAlignment) {
switch (aAlignment) {
case POPUPALIGNMENT_NONE:
break;
case POPUPALIGNMENT_TOPLEFT:
return {Some(eSideTop), Some(eSideLeft)};
case POPUPALIGNMENT_TOPRIGHT:
return {Some(eSideTop), Some(eSideRight)};
case POPUPALIGNMENT_BOTTOMLEFT:
return {Some(eSideBottom), Some(eSideLeft)};
case POPUPALIGNMENT_BOTTOMRIGHT:
return {Some(eSideBottom), Some(eSideRight)};
case POPUPALIGNMENT_LEFTCENTER:
return {Nothing(), Some(eSideLeft)};
case POPUPALIGNMENT_RIGHTCENTER:
return {Nothing(), Some(eSideRight)};
case POPUPALIGNMENT_TOPCENTER:
return {Some(eSideTop), Nothing()};
case POPUPALIGNMENT_BOTTOMCENTER:
return {Some(eSideBottom), Nothing()};
}
return {};
}
// We want to apply margins based on popup alignment (which would generally be
// just an offset to apply to the popup). However, to deal with flipping
// correctly, we apply the margin to the anchor when possible.
struct ResolvedPopupMargin {
// A margin to be applied to the anchor.
nsMargin mAnchorMargin;
// An offset in app units to be applied to the popup for when we need to tell
// GTK to center inside the anchor precisely (so we can't really do better in
// presence of flips).
nsPoint mPopupOffset;
};
static ResolvedPopupMargin ResolveMargin(nsMenuPopupFrame* aFrame,
int8_t aPopupAlign,
int8_t aAnchorAlign,
bool aAnchoredToPoint,
bool aIsContextMenu) {
nsMargin margin = aFrame->GetMargin();
nsPoint offset;
if (aAnchoredToPoint) {
// Since GTK doesn't allow us to specify margins itself, when anchored to a
// point we can just assume we'll be aligned correctly... This is kind of
// annoying but alas.
//
// This calculation must match the relevant unanchored popup calculation in
// nsMenuPopupFrame::SetPopupPosition(), which should itself be the inverse
// inverse of nsMenuPopupFrame::MoveTo().
if (aIsContextMenu && aFrame->IsDirectionRTL()) {
offset.x = -margin.right;
} else {
offset.x = margin.left;
}
offset.y = margin.top;
return {nsMargin(), offset};
}
auto popupSides = SidesForPopupAlignment(aPopupAlign);
auto anchorSides = SidesForPopupAlignment(aAnchorAlign);
// Matched sides: Invert the margin, so that we pull in the right direction.
// Popup not aligned to any anchor side: We give up and use the offset,
// applying the margin from the popup side.
// Mismatched sides: We swap the margins so that we pull in the right
// direction, e.g. margin-left: -10px should shrink 10px the _right_ of the
// box, not the left of the box.
if (popupSides.mHorizontal == anchorSides.mHorizontal) {
margin.left = -margin.left;
margin.right = -margin.right;
} else if (!anchorSides.mHorizontal) {
auto popupSide = *popupSides.mHorizontal;
offset.x += popupSide == eSideRight ? -margin.Side(popupSide)
: margin.Side(popupSide);
margin.left = margin.right = 0;
} else {
std::swap(margin.left, margin.right);
}
// Same logic as above, but in the vertical direction.
if (popupSides.mVertical == anchorSides.mVertical) {
margin.top = -margin.top;
margin.bottom = -margin.bottom;
} else if (!anchorSides.mVertical) {
auto popupSide = *popupSides.mVertical;
offset.y += popupSide == eSideBottom ? -margin.Side(popupSide)
: margin.Side(popupSide);
margin.top = margin.bottom = 0;
} else {
std::swap(margin.top, margin.bottom);
}
return {margin, offset};
}
#ifdef MOZ_LOGGING
void nsWindow::LogPopupAnchorHints(int aHints) {
static struct hints_ {
int hint;
char name[100];
} hints[] = {
{GDK_ANCHOR_FLIP_X, "GDK_ANCHOR_FLIP_X"},
{GDK_ANCHOR_FLIP_Y, "GDK_ANCHOR_FLIP_Y"},
{GDK_ANCHOR_SLIDE_X, "GDK_ANCHOR_SLIDE_X"},
{GDK_ANCHOR_SLIDE_Y, "GDK_ANCHOR_SLIDE_Y"},
{GDK_ANCHOR_RESIZE_X, "GDK_ANCHOR_RESIZE_X"},
{GDK_ANCHOR_RESIZE_Y, "GDK_ANCHOR_RESIZE_X"},
};
LOG(" PopupAnchorHints");
for (const auto& hint : hints) {
if (hint.hint & aHints) {
LOG(" %s", hint.name);
}
}
}
void nsWindow::LogPopupGravity(GdkGravity aGravity) {
static char gravity[][100]{"NONE",
"GDK_GRAVITY_NORTH_WEST",
"GDK_GRAVITY_NORTH",
"GDK_GRAVITY_NORTH_EAST",
"GDK_GRAVITY_WEST",
"GDK_GRAVITY_CENTER",
"GDK_GRAVITY_EAST",
"GDK_GRAVITY_SOUTH_WEST",
"GDK_GRAVITY_SOUTH",
"GDK_GRAVITY_SOUTH_EAST",
"GDK_GRAVITY_STATIC"};
LOG(" %s", gravity[aGravity]);
}
#endif
const nsWindow::WaylandPopupMoveToRectParams
nsWindow::WaylandPopupGetPositionFromLayout() {
LOG("nsWindow::WaylandPopupGetPositionFromLayout\n");
nsMenuPopupFrame* popupFrame = GetMenuPopupFrame(GetFrame());
const bool isTopContextMenu = mPopupContextMenu && !mPopupAnchored;
const bool isRTL = popupFrame->IsDirectionRTL();
const bool anchored = popupFrame->IsAnchored();
int8_t popupAlign = POPUPALIGNMENT_TOPLEFT;
int8_t anchorAlign = POPUPALIGNMENT_BOTTOMRIGHT;
if (anchored) {
// See nsMenuPopupFrame::AdjustPositionForAnchorAlign.
popupAlign = popupFrame->GetPopupAlignment();
anchorAlign = popupFrame->GetPopupAnchor();
}
if (isRTL) {
popupAlign = -popupAlign;
anchorAlign = -anchorAlign;
}
// Although we have mPopupPosition / mRelativePopupPosition here
// we can't use it. move-to-rect needs anchor rectangle to position a popup
// but we have only a point from Resize().
//
// So we need to extract popup position from nsMenuPopupFrame() and duplicate
// the layout work here.
LayoutDeviceIntRect anchorRect;
ResolvedPopupMargin popupMargin;
{
nsRect anchorRectAppUnits = popupFrame->GetUntransformedAnchorRect();
// This is a somewhat hacky way of applying the popup margin. We don't know
// if GTK will end up flipping the popup, in which case the offset we
// compute is just wrong / applied to the wrong side.
//
// Instead, we tell it to anchor us at a smaller or bigger rect depending on
// the margin, which achieves the same result if the popup is positioned
// correctly, but doesn't misposition the popup when flipped across the
// anchor.
popupMargin = ResolveMargin(popupFrame, popupAlign, anchorAlign,
anchorRectAppUnits.IsEmpty(), isTopContextMenu);
LOG(" layout popup CSS anchor (%d, %d) %s, margin %s offset %s\n",
popupAlign, anchorAlign, ToString(anchorRectAppUnits).c_str(),
ToString(popupMargin.mAnchorMargin).c_str(),
ToString(popupMargin.mPopupOffset).c_str());
anchorRectAppUnits.Inflate(popupMargin.mAnchorMargin);
LOG(" after margins %s\n", ToString(anchorRectAppUnits).c_str());
nscoord auPerDev = popupFrame->PresContext()->AppUnitsPerDevPixel();
anchorRect = LayoutDeviceIntRect::FromAppUnitsToNearest(anchorRectAppUnits,
auPerDev);
if (anchorRect.width < 0) {
auto w = -anchorRect.width;
anchorRect.width += w + 1;
anchorRect.x += w;
}
LOG(" final %s\n", ToString(anchorRect).c_str());
}
LOG(" relative popup rect position [%d, %d] -> [%d x %d]\n", anchorRect.x,
anchorRect.y, anchorRect.width, anchorRect.height);
// Get gravity and flip type
GdkGravity rectAnchor = PopupAlignmentToGdkGravity(anchorAlign);
GdkGravity menuAnchor = PopupAlignmentToGdkGravity(popupAlign);
LOG(" parentRect gravity: %d anchor gravity: %d\n", rectAnchor, menuAnchor);
// Gtk default is: GDK_ANCHOR_FLIP | GDK_ANCHOR_SLIDE | GDK_ANCHOR_RESIZE.
// We want to SLIDE_X menu on the dual monitor setup rather than resize it
// on the other monitor.
GdkAnchorHints hints =
GdkAnchorHints(GDK_ANCHOR_FLIP | GDK_ANCHOR_SLIDE_X | GDK_ANCHOR_RESIZE);
// slideHorizontal from nsMenuPopupFrame::SetPopupPosition
int8_t position = popupFrame->GetAlignmentPosition();
if (position >= POPUPPOSITION_BEFORESTART &&
position <= POPUPPOSITION_AFTEREND) {
hints = GdkAnchorHints(hints | GDK_ANCHOR_SLIDE_X);
}
// slideVertical from nsMenuPopupFrame::SetPopupPosition
if (position >= POPUPPOSITION_STARTBEFORE &&
position <= POPUPPOSITION_ENDAFTER) {
hints = GdkAnchorHints(hints | GDK_ANCHOR_SLIDE_Y);
}
FlipType flipType = popupFrame->GetFlipType();
if (rectAnchor == GDK_GRAVITY_CENTER && menuAnchor == GDK_GRAVITY_CENTER) {
// only slide
hints = GdkAnchorHints(hints | GDK_ANCHOR_SLIDE);
} else {
switch (flipType) {
case FlipType_Both:
hints = GdkAnchorHints(hints | GDK_ANCHOR_FLIP);
break;
case FlipType_Slide:
hints = GdkAnchorHints(hints | GDK_ANCHOR_SLIDE);
break;
case FlipType_Default:
hints = GdkAnchorHints(hints | GDK_ANCHOR_FLIP);
break;
default:
break;
}
}
if (!WaylandPopupIsMenu()) {
// we don't want to slide menus to fit the screen rather resize them
hints = GdkAnchorHints(hints | GDK_ANCHOR_SLIDE);
}
// We want tooltips to flip verticaly or slide only.
// See nsMenuPopupFrame::SetPopupPosition().
// https://searchfox.org/mozilla-central/rev/d0f5bc50aff3462c9d1546b88d60c5cb020eb15c/layout/xul/nsMenuPopupFrame.cpp#1603
if (mPopupType == PopupType::Tooltip) {
hints = GdkAnchorHints(GDK_ANCHOR_FLIP_Y | GDK_ANCHOR_SLIDE);
}
return {
anchorRect,
rectAnchor,
menuAnchor,
hints,
DevicePixelsToGdkPointRoundDown(LayoutDevicePoint::FromAppUnitsToNearest(
popupMargin.mPopupOffset,
popupFrame->PresContext()->AppUnitsPerDevPixel())),
true};
}
bool nsWindow::WaylandPopupAnchorAdjustForParentPopup(
GdkRectangle* aPopupAnchor, GdkPoint* aOffset) {
LOG("nsWindow::WaylandPopupAnchorAdjustForParentPopup");
GtkWindow* parentGtkWindow = gtk_window_get_transient_for(GTK_WINDOW(mShell));
if (!parentGtkWindow || !GTK_IS_WIDGET(parentGtkWindow)) {
NS_WARNING("Popup has no parent!");
return false;
}
GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(parentGtkWindow));
if (!window) {
NS_WARNING("Popup parrent is not mapped!");
return false;
}
GdkRectangle parentWindowRect = {0, 0, gdk_window_get_width(window),
gdk_window_get_height(window)};
LOG(" parent window size %d x %d", parentWindowRect.width,
parentWindowRect.height);
// We can't have rectangle anchor with zero width/height.
if (!aPopupAnchor->width) {
aPopupAnchor->width = 1;
}
if (!aPopupAnchor->height) {
aPopupAnchor->height = 1;
}
GdkRectangle finalRect;
if (!gdk_rectangle_intersect(aPopupAnchor, &parentWindowRect, &finalRect)) {
return false;
}
*aPopupAnchor = finalRect;
LOG(" anchor is correct %d,%d -> %d x %d", finalRect.x, finalRect.y,
finalRect.width, finalRect.height);
*aOffset = mPopupMoveToRectParams.mOffset;
LOG(" anchor offset %d, %d", aOffset->x, aOffset->y);
return true;
}
bool nsWindow::WaylandPopupCheckAndGetAnchor(GdkRectangle* aPopupAnchor,
GdkPoint* aOffset) {
LOG("nsWindow::WaylandPopupCheckAndGetAnchor");
GdkWindow* gdkWindow = GetToplevelGdkWindow();
nsMenuPopupFrame* popupFrame = GetMenuPopupFrame(GetFrame());
if (!gdkWindow || !popupFrame) {
LOG(" can't use move-to-rect due missing gdkWindow or popupFrame");
return false;
}
if (popupFrame->IsConstrainedByLayout()) {
LOG(" can't use move-to-rect, flipped / constrained by layout");
return false;
}
if (!mPopupMoveToRectParams.mAnchorSet) {
LOG(" can't use move-to-rect due missing anchor");
return false;
}
// Update popup layout coordinates from layout by recent popup hierarchy
// (calculate correct position according to parent window)
// and convert to Gtk coordinates.
LayoutDeviceIntRect anchorRect = mPopupMoveToRectParams.mAnchorRect;
if (!WaylandPopupIsFirst()) {
GdkPoint parent = WaylandGetParentPosition();
LOG(" subtract parent position from anchor [%d, %d]\n", parent.x,
parent.y);
anchorRect.MoveBy(-GdkPointToDevicePixels(parent));
}
*aPopupAnchor = DevicePixelsToGdkRectRoundOut(anchorRect);
LOG(" anchored to rectangle [%d, %d] -> [%d x %d]", aPopupAnchor->x,
aPopupAnchor->y, aPopupAnchor->width, aPopupAnchor->height);
if (!WaylandPopupAnchorAdjustForParentPopup(aPopupAnchor, aOffset)) {
LOG(" can't use move-to-rect, anchor is not placed inside of parent "
"window");
return false;
}
return true;
}
void nsWindow::WaylandPopupPrepareForMove() {
LOG("nsWindow::WaylandPopupPrepareForMove()");
if (mPopupType == PopupType::Tooltip) {
// Don't fiddle with tooltips type, just hide it before move-to-rect
if (mPopupUseMoveToRect && gtk_widget_is_visible(mShell)) {
HideWaylandPopupWindow(/* aTemporaryHide */ true,
/* aRemoveFromPopupList */ false);
}
LOG(" it's tooltip, quit");
return;
}
// See https://bugzilla.mozilla.org/show_bug.cgi?id=1785185#c8
// gtk_window_move() needs GDK_WINDOW_TYPE_HINT_UTILITY popup type.
// move-to-rect requires GDK_WINDOW_TYPE_HINT_POPUP_MENU popups type.
// We need to set it before map event when popup is hidden.
const GdkWindowTypeHint currentType =
gtk_window_get_type_hint(GTK_WINDOW(mShell));
const GdkWindowTypeHint requiredType = mPopupUseMoveToRect
? GDK_WINDOW_TYPE_HINT_POPUP_MENU
: GDK_WINDOW_TYPE_HINT_UTILITY;
if (!mPopupUseMoveToRect && currentType == requiredType) {
LOG(" type matches and we're not forced to hide it, quit.");
return;
}
if (gtk_widget_is_visible(mShell)) {
HideWaylandPopupWindow(/* aTemporaryHide */ true,
/* aRemoveFromPopupList */ false);
}
if (currentType != requiredType) {
LOG(" set type %s",
requiredType == GDK_WINDOW_TYPE_HINT_POPUP_MENU ? "MENU" : "UTILITY");
gtk_window_set_type_hint(GTK_WINDOW(mShell), requiredType);
}
}
// Plain popup move on Wayland - simply place popup on given location.
// We can't just call gtk_window_move() as it's not effective on visible
// popups.
void nsWindow::WaylandPopupMovePlain(int aX, int aY) {
LOG("nsWindow::WaylandPopupMovePlain(%d, %d)", aX, aY);
// We can directly move only popups based on wl_subsurface type.
MOZ_DIAGNOSTIC_ASSERT(gtk_window_get_type_hint(GTK_WINDOW(mShell)) ==
GDK_WINDOW_TYPE_HINT_UTILITY ||
gtk_window_get_type_hint(GTK_WINDOW(mShell)) ==
GDK_WINDOW_TYPE_HINT_TOOLTIP);
gtk_window_move(GTK_WINDOW(mShell), aX, aY);
// gtk_window_move() can trick us. When widget is hidden gtk_window_move()
// does not move the widget but sets new widget coordinates when widget
// is mapped again.
//
// If popup used move-to-rect before
// (GdkWindow has POSITION_METHOD_MOVE_TO_RECT set), popup will use
// move-to-rect again when it's mapped and we'll get bogus move-to-rect
// callback.
//
// gdk_window_move() sets position_method to POSITION_METHOD_MOVE_RESIZE
// so we'll use plain move when popup is shown.
if (!gtk_widget_get_mapped(mShell)) {
if (GdkWindow* window = GetToplevelGdkWindow()) {
gdk_window_move(window, aX, aY);
}
}
}
void nsWindow::WaylandPopupMoveImpl() {
// Available as of GTK 3.24+
static auto sGdkWindowMoveToRect = (void (*)(
GdkWindow*, const GdkRectangle*, GdkGravity, GdkGravity, GdkAnchorHints,
gint, gint))dlsym(RTLD_DEFAULT, "gdk_window_move_to_rect");
if (mPopupUseMoveToRect && !sGdkWindowMoveToRect) {
LOG("can't use move-to-rect due missing gdk_window_move_to_rect()");
mPopupUseMoveToRect = false;
}
GdkRectangle gtkAnchorRect;
GdkPoint offset;
if (mPopupUseMoveToRect) {
mPopupUseMoveToRect =
WaylandPopupCheckAndGetAnchor(>kAnchorRect, &offset);
}
LOG("nsWindow::WaylandPopupMove");
LOG(" original widget popup position [%d, %d]\n", mPopupPosition.x,
mPopupPosition.y);
LOG(" relative widget popup position [%d, %d]\n", mRelativePopupPosition.x,
mRelativePopupPosition.y);
LOG(" popup use move to rect %d", mPopupUseMoveToRect);
WaylandPopupPrepareForMove();
if (!mPopupUseMoveToRect) {
WaylandPopupMovePlain(mRelativePopupPosition.x, mRelativePopupPosition.y);
// Layout already should be aware of our bounds, since we didn't change it
// from the widget side for flipping or so.
return;
}
// Correct popup position now. It will be updated by gdk_window_move_to_rect()
// anyway but we need to set it now to avoid a race condition here.
WaylandPopupRemoveNegativePosition();
GdkWindow* gdkWindow = GetToplevelGdkWindow();
if (!g_signal_handler_find(gdkWindow, G_SIGNAL_MATCH_FUNC, 0, 0, nullptr,
FuncToGpointer(NativeMoveResizeCallback), this)) {
g_signal_connect(gdkWindow, "moved-to-rect",
G_CALLBACK(NativeMoveResizeCallback), this);
}
mWaitingForMoveToRectCallback = true;
#ifdef MOZ_LOGGING
if (LOG_ENABLED()) {
LOG(" Call move-to-rect");
LOG(" Anchor rect [%d, %d] -> [%d x %d]", gtkAnchorRect.x, gtkAnchorRect.y,
gtkAnchorRect.width, gtkAnchorRect.height);
LOG(" Offset [%d, %d]", offset.x, offset.y);
LOG(" AnchorType");
LogPopupGravity(mPopupMoveToRectParams.mAnchorRectType);
LOG(" PopupAnchorType");
LogPopupGravity(mPopupMoveToRectParams.mPopupAnchorType);
LogPopupAnchorHints(mPopupMoveToRectParams.mHints);
}
#endif
sGdkWindowMoveToRect(gdkWindow, >kAnchorRect,
mPopupMoveToRectParams.mAnchorRectType,
mPopupMoveToRectParams.mPopupAnchorType,
mPopupMoveToRectParams.mHints, offset.x, offset.y);
}
void nsWindow::SetSizeMode(nsSizeMode aMode) {
LOG("nsWindow::SetSizeMode %d\n", aMode);
// Return if there's no shell or our current state is the same as the mode we
// were just set to.
if (!mShell) {
LOG(" no shell");
return;
}
if (mSizeMode == aMode && mLastSizeModeRequest == aMode) {
LOG(" already set");
return;
}
// It is tempting to try to optimize calls below based only on current
// mSizeMode, but that wouldn't work if there's a size-request in flight
// (specially before show). See bug 1789823.
const auto SizeModeMightBe = [&](nsSizeMode aModeToTest) {
if (mSizeMode != mLastSizeModeRequest) {
// Arbitrary size mode requests might be ongoing.
return true;
}
return mSizeMode == aModeToTest;
};
if (aMode != nsSizeMode_Fullscreen && aMode != nsSizeMode_Minimized) {
// Fullscreen and minimized are compatible.
if (SizeModeMightBe(nsSizeMode_Fullscreen)) {
MakeFullScreen(false);
}
}
switch (aMode) {
case nsSizeMode_Maximized:
LOG(" set maximized");
gtk_window_maximize(GTK_WINDOW(mShell));
break;
case nsSizeMode_Minimized:
LOG(" set minimized");
gtk_window_iconify(GTK_WINDOW(mShell));
break;
case nsSizeMode_Fullscreen:
LOG(" set fullscreen");
MakeFullScreen(true);
break;
default:
MOZ_FALLTHROUGH_ASSERT("Unknown size mode");
case nsSizeMode_Normal:
LOG(" set normal");
if (SizeModeMightBe(nsSizeMode_Maximized)) {
gtk_window_unmaximize(GTK_WINDOW(mShell));
}
if (SizeModeMightBe(nsSizeMode_Minimized)) {
gtk_window_deiconify(GTK_WINDOW(mShell));
// We need this for actual deiconification on mutter.
gtk_window_present(GTK_WINDOW(mShell));
}
break;
}
mLastSizeModeRequest = aMode;
}
#define kDesktopMutterSchema "org.gnome.mutter"_ns
#define kDesktopDynamicWorkspacesKey "dynamic-workspaces"_ns
static bool WorkspaceManagementDisabled(GdkScreen* screen) {
if (Preferences::GetBool("widget.disable-workspace-management", false)) {
return true;
}
if (Preferences::HasUserValue("widget.workspace-management")) {
return Preferences::GetBool("widget.workspace-management");
}
if (IsGnomeDesktopEnvironment()) {
// Gnome uses dynamic workspaces by default so disable workspace management
// in that case.
bool usesDynamicWorkspaces = true;
nsCOMPtr<nsIGSettingsService> gsettings =
do_GetService(NS_GSETTINGSSERVICE_CONTRACTID);
if (gsettings) {
nsCOMPtr<nsIGSettingsCollection> mutterSettings;
gsettings->GetCollectionForSchema(kDesktopMutterSchema,
getter_AddRefs(mutterSettings));
if (mutterSettings) {
mutterSettings->GetBoolean(kDesktopDynamicWorkspacesKey,
&usesDynamicWorkspaces);
}
}
return usesDynamicWorkspaces;
}
const auto& desktop = GetDesktopEnvironmentIdentifier();
return desktop.EqualsLiteral("bspwm") || desktop.EqualsLiteral("i3");
}
void nsWindow::GetWorkspaceID(nsAString& workspaceID) {
workspaceID.Truncate();
if (!GdkIsX11Display() || !mShell) {
return;
}
#ifdef MOZ_X11
LOG("nsWindow::GetWorkspaceID()\n");
// Get the gdk window for this widget.
GdkWindow* gdk_window = GetToplevelGdkWindow();
if (!gdk_window) {
LOG(" missing Gdk window, quit.");
return;
}
if (WorkspaceManagementDisabled(gdk_window_get_screen(gdk_window))) {
LOG(" WorkspaceManagementDisabled, quit.");
return;
}
GdkAtom cardinal_atom = gdk_x11_xatom_to_atom(XA_CARDINAL);
GdkAtom type_returned;
int format_returned;
int length_returned;
long* wm_desktop;
if (!gdk_property_get(gdk_window, gdk_atom_intern("_NET_WM_DESKTOP", FALSE),
cardinal_atom,
0, // offset
INT32_MAX, // length
FALSE, // delete
&type_returned, &format_returned, &length_returned,
(guchar**)&wm_desktop)) {
LOG(" gdk_property_get() failed, quit.");
return;
}
LOG(" got workspace ID %d", (int32_t)wm_desktop[0]);
workspaceID.AppendInt((int32_t)wm_desktop[0]);
g_free(wm_desktop);
#endif
}
void nsWindow::MoveToWorkspace(const nsAString& workspaceIDStr) {
nsresult rv = NS_OK;
int32_t workspaceID = workspaceIDStr.ToInteger(&rv);
LOG("nsWindow::MoveToWorkspace() ID %d", workspaceID);
if (NS_FAILED(rv) || !workspaceID || !GdkIsX11Display() || !mShell) {
LOG(" MoveToWorkspace disabled, quit");
return;
}
#ifdef MOZ_X11
// Get the gdk window for this widget.
GdkWindow* gdk_window = GetToplevelGdkWindow();
if (!gdk_window) {
LOG(" failed to get GdkWindow, quit.");
return;
}
// This code is inspired by some found in the 'gxtuner' project.
// https://github.com/brummer10/gxtuner/blob/792d453da0f3a599408008f0f1107823939d730d/deskpager.cpp#L50
XEvent xevent;
Display* xdisplay = gdk_x11_get_default_xdisplay();
GdkScreen* screen = gdk_window_get_screen(gdk_window);
Window root_win = GDK_WINDOW_XID(gdk_screen_get_root_window(screen));
GdkDisplay* display = gdk_window_get_display(gdk_window);
Atom type = gdk_x11_get_xatom_by_name_for_display(display, "_NET_WM_DESKTOP");
xevent.type = ClientMessage;
xevent.xclient.type = ClientMessage;
xevent.xclient.serial = 0;
xevent.xclient.send_event = TRUE;
xevent.xclient.display = xdisplay;
xevent.xclient.window = GDK_WINDOW_XID(gdk_window);
xevent.xclient.message_type = type;
xevent.xclient.format = 32;
xevent.xclient.data.l[0] = workspaceID;
xevent.xclient.data.l[1] = X11CurrentTime;
xevent.xclient.data.l[2] = 0;
xevent.xclient.data.l[3] = 0;
xevent.xclient.data.l[4] = 0;
XSendEvent(xdisplay, root_win, FALSE,
SubstructureNotifyMask | SubstructureRedirectMask, &xevent);
XFlush(xdisplay);
LOG(" moved to workspace");
#endif
}
void nsWindow::SetUserTimeAndStartupTokenForActivatedWindow() {
nsGTKToolkit* toolkit = nsGTKToolkit::GetToolkit();
if (!toolkit || MOZ_UNLIKELY(mWindowType == WindowType::Invisible)) {
return;
}
mWindowActivationTokenFromEnv = toolkit->GetStartupToken();
if (!mWindowActivationTokenFromEnv.IsEmpty()) {
if (!GdkIsWaylandDisplay()) {
gtk_window_set_startup_id(GTK_WINDOW(mShell),
mWindowActivationTokenFromEnv.get());
// In the case of X11, the above call is all we need. For wayland we need
// to keep the token around until we take it in
// TransferFocusToWaylandWindow.
mWindowActivationTokenFromEnv.Truncate();
}
} else if (uint32_t timestamp = toolkit->GetFocusTimestamp()) {
// We don't have the data we need. Fall back to an
// approximation ... using the timestamp of the remote command
// being received as a guess for the timestamp of the user event
// that triggered it.
gdk_window_focus(GetToplevelGdkWindow(), timestamp);
}
// If we used the startup ID, that already contains the focus timestamp;
// we don't want to reuse the timestamp next time we raise the window
toolkit->SetFocusTimestamp(0);
toolkit->SetStartupToken(""_ns);
}
/* static */
guint32 nsWindow::GetLastUserInputTime() {
// gdk_x11_display_get_user_time/gtk_get_current_event_time tracks
// button and key presses, DESKTOP_STARTUP_ID used to start the app,
// drop events from external drags,
// WM_DELETE_WINDOW delete events, but not usually mouse motion nor
// button and key releases. Therefore use the most recent of
// gdk_x11_display_get_user_time and the last time that we have seen.
#ifdef MOZ_X11
GdkDisplay* gdkDisplay = gdk_display_get_default();
guint32 timestamp = GdkIsX11Display(gdkDisplay)
? gdk_x11_display_get_user_time(gdkDisplay)
: gtk_get_current_event_time();
#else
guint32 timestamp = gtk_get_current_event_time();
#endif
if (sLastUserInputTime != GDK_CURRENT_TIME &&
TimestampIsNewerThan(sLastUserInputTime, timestamp)) {
return sLastUserInputTime;
}
return timestamp;
}
#ifdef MOZ_WAYLAND
void nsWindow::FocusWaylandWindow(const char* aTokenID) {
MOZ_DIAGNOSTIC_ASSERT(aTokenID);
LOG("nsWindow::FocusWaylandWindow(%s)", aTokenID);
if (IsDestroyed()) {
LOG(" already destroyed, quit.");
return;
}
wl_surface* surface =
mGdkWindow ? gdk_wayland_window_get_wl_surface(mGdkWindow) : nullptr;
if (!surface) {
LOG(" mGdkWindow is not visible, quit.");
return;
}
LOG(" requesting xdg-activation, surface ID %d",
wl_proxy_get_id((struct wl_proxy*)surface));
xdg_activation_v1* xdg_activation = WaylandDisplayGet()->GetXdgActivation();
if (!xdg_activation) {
return;
}
xdg_activation_v1_activate(xdg_activation, aTokenID, surface);
}
// Transfer focus from gFocusWindow to aWindow and use xdg_activation
// protocol for it.
void nsWindow::TransferFocusToWaylandWindow(nsWindow* aWindow) {
LOGW("nsWindow::TransferFocusToWaylandWindow(%p) gFocusWindow %p", aWindow,
gFocusWindow);
auto promise = mozilla::widget::RequestWaylandFocusPromise();
if (NS_WARN_IF(!promise)) {
LOGW(" quit, failed to create TransferFocusToWaylandWindow [%p]", aWindow);
return;
}
promise->Then(
GetMainThreadSerialEventTarget(), __func__,
/* resolve */
[window = RefPtr{aWindow}](nsCString token) {
window->FocusWaylandWindow(token.get());
},
/* reject */
[window = RefPtr{aWindow}](bool state) {
LOGW("TransferFocusToWaylandWindow [%p] failed", window.get());
});
}
#endif
// Request activation of this window or give focus to this widget.
// aRaise means whether we should request activation of this widget's
// toplevel window.
//
// nsWindow::SetFocus(Raise::Yes) - Raise and give focus to toplevel window.
// nsWindow::SetFocus(Raise::No) - Give focus to this window.
void nsWindow::SetFocus(Raise aRaise, mozilla::dom::CallerType aCallerType) {
LOG("nsWindow::SetFocus Raise %d\n", aRaise == Raise::Yes);
// Raise the window if someone passed in true and the prefs are
// set properly.
GtkWidget* toplevelWidget = gtk_widget_get_toplevel(GTK_WIDGET(mContainer));
LOG(" gFocusWindow [%p]\n", gFocusWindow);
LOG(" mContainer [%p]\n", GTK_WIDGET(mContainer));
LOG(" Toplevel widget [%p]\n", toplevelWidget);
// Make sure that our owning widget has focus. If it doesn't try to
// grab it. Note that we don't set our focus flag in this case.
if (StaticPrefs::mozilla_widget_raise_on_setfocus_AtStartup() &&
aRaise == Raise::Yes && toplevelWidget &&
!gtk_widget_has_focus(toplevelWidget)) {
if (gtk_widget_get_visible(mShell)) {
LOG(" toplevel is not focused");
gdk_window_show_unraised(GetToplevelGdkWindow());
// Unset the urgency hint if possible.
SetUrgencyHint(mShell, false);
}
}
RefPtr<nsWindow> toplevelWindow = get_window_for_gtk_widget(toplevelWidget);
if (!toplevelWindow) {
LOG(" missing toplevel nsWindow, quit\n");
return;
}
if (aRaise == Raise::Yes) {
// means request toplevel activation.
// This is asynchronous. If and when the window manager accepts the request,
// then the focus widget will get a focus-in-event signal.
if (StaticPrefs::mozilla_widget_raise_on_setfocus_AtStartup() &&
toplevelWindow->mIsShown && toplevelWindow->mShell &&
!gtk_window_is_active(GTK_WINDOW(toplevelWindow->mShell))) {
LOG(" toplevel is visible but not active, requesting activation [%p]",
toplevelWindow.get());
// Take the time here explicitly for the call below.
const uint32_t timestamp = [&] {
if (nsGTKToolkit* toolkit = nsGTKToolkit::GetToolkit()) {
if (uint32_t t = toolkit->GetFocusTimestamp()) {
toolkit->SetFocusTimestamp(0);
return t;
}
}
return GetLastUserInputTime();
}();
toplevelWindow->SetUserTimeAndStartupTokenForActivatedWindow();
gtk_window_present_with_time(GTK_WINDOW(toplevelWindow->mShell),
timestamp);
#ifdef MOZ_WAYLAND
if (GdkIsWaylandDisplay()) {
auto existingToken =
std::move(toplevelWindow->mWindowActivationTokenFromEnv);
if (!existingToken.IsEmpty()) {
LOG(" has existing activation token.");
toplevelWindow->FocusWaylandWindow(existingToken.get());
} else {
LOG(" missing activation token, try to transfer from focused "
"window");
TransferFocusToWaylandWindow(toplevelWindow);
}
}
#endif
}
return;
}
// aRaise == No means that keyboard events should be dispatched from this
// widget.
// Ensure GTK_WIDGET(mContainer) is the focused GtkWidget within its toplevel
// window.
//
// For WindowType::Popup, this GtkWidget may not actually be the one that
// receives the key events as it may be the parent window that is active.
if (!gtk_widget_is_focus(GTK_WIDGET(mContainer))) {
// This is synchronous. It takes focus from a plugin or from a widget
// in an embedder. The focus manager already knows that this window
// is active so gBlockActivateEvent avoids another (unnecessary)
// activate notification.
gBlockActivateEvent = true;
gtk_widget_grab_focus(GTK_WIDGET(mContainer));
gBlockActivateEvent = false;
}
// If this is the widget that already has focus, return.
if (gFocusWindow == this) {
LOG(" already have focus");
return;
}
// Set this window to be the focused child window
gFocusWindow = this;
if (mIMContext) {
mIMContext->OnFocusWindow(this);
}
LOG(" widget now has focus in SetFocus()");
}
void nsWindow::ResetScreenBounds() {
mGdkWindowOrigin.reset();
mGdkWindowRootOrigin.reset();
}
LayoutDeviceIntRect nsWindow::GetScreenBounds() {
if (!mGdkWindow) {
return mBounds;
}
const LayoutDeviceIntPoint origin = [&] {
GdkPoint origin;
if (mGdkWindowRootOrigin.isSome()) {
origin = mGdkWindowRootOrigin.value();
} else {
gdk_window_get_root_origin(mGdkWindow, &origin.x, &origin.y);
mGdkWindowRootOrigin = Some(origin);
}
// Workaround for https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/4820
// Bug 1775017 Gtk < 3.24.35 returns scaled values for
// override redirected window on X11.
if (gtk_check_version(3, 24, 35) != nullptr && GdkIsX11Display() &&
gdk_window_get_window_type(mGdkWindow) == GDK_WINDOW_TEMP) {
return LayoutDeviceIntPoint(origin.x, origin.y);
}
return GdkPointToDevicePixels(origin);
}();
// mBounds.Size() is the window bounds, not the window-manager frame
// bounds (bug 581863). gdk_window_get_frame_extents would give the
// frame bounds, but mBounds.Size() is returned here for consistency
// with Resize.
const LayoutDeviceIntRect rect(origin, mBounds.Size());
#if MOZ_LOGGING
if (MOZ_LOG_TEST(IsPopup() ? gWidgetPopupLog : gWidgetLog,
LogLevel::Verbose)) {
gint scale = GdkCeiledScaleFactor();
if (mLastLoggedScale != scale || !(mLastLoggedBoundSize == rect)) {
mLastLoggedScale = scale;
mLastLoggedBoundSize = rect;
LOG("GetScreenBounds %d,%d -> %d x %d, unscaled %d,%d -> %d x %d\n",
rect.x, rect.y, rect.width, rect.height, rect.x / scale,
rect.y / scale, rect.width / scale, rect.height / scale);
}
}
#endif
return rect;
}
LayoutDeviceIntSize nsWindow::GetClientSize() { return mBounds.Size(); }
LayoutDeviceIntRect nsWindow::GetClientBounds() {
// GetBounds returns a rect whose top left represents the top left of the
// outer bounds, but whose width/height represent the size of the inner
// bounds (which is messed up).
LayoutDeviceIntRect rect = GetBounds();
rect.MoveBy(GetClientOffset());
return rect;
}
void nsWindow::RecomputeClientOffset(bool aNotify) {
if (!IsTopLevelWindowType()) {
return;
}
auto oldOffset = mClientOffset;
mClientOffset = WidgetToScreenOffset() - mBounds.TopLeft();
if (aNotify && mClientOffset != oldOffset) {
// Send a WindowMoved notification. This ensures that BrowserParent picks up
// the new client offset and sends it to the child process if appropriate.
NotifyWindowMoved(mBounds.x, mBounds.y);
}
}
gboolean nsWindow::OnPropertyNotifyEvent(GtkWidget* aWidget,
GdkEventProperty* aEvent) {
if (aEvent->atom == gdk_atom_intern("_NET_FRAME_EXTENTS", FALSE)) {
ResetScreenBounds();
RecomputeClientOffset(/* aNotify = */ true);
return FALSE;
}
if (!mGdkWindow) {
return FALSE;
}
#ifdef MOZ_X11
if (GetCurrentTimeGetter()->PropertyNotifyHandler(aWidget, aEvent)) {
return TRUE;
}
#endif
return FALSE;
}
static GdkCursor* GetCursorForImage(const nsIWidget::Cursor& aCursor,
int32_t aWidgetScaleFactor) {
if (!aCursor.IsCustom()) {
return nullptr;
}
nsIntSize size = nsIWidget::CustomCursorSize(aCursor);
// NOTE: GTK only allows integer scale factors, so we ceil to the larger scale
// factor and then tell gtk to scale it down. We ensure to scale at least to
// the GDK scale factor, so that cursors aren't downsized in HiDPI on wayland,
// see bug 1707533.
int32_t gtkScale = std::max(
aWidgetScaleFactor, int32_t(std::ceil(std::max(aCursor.mResolution.mX,
aCursor.mResolution.mY))));
// Reject cursors greater than 128 pixels in some direction, to prevent
// spoofing.
// XXX ideally we should rescale. Also, we could modify the API to
// allow trusted content to set larger cursors.
//
// TODO(emilio, bug 1445844): Unify the solution for this with other
// platforms.
if (size.width > 128 || size.height > 128) {
return nullptr;
}
nsIntSize rasterSize = size * gtkScale;
RefPtr<GdkPixbuf> pixbuf =
nsImageToPixbuf::ImageToPixbuf(aCursor.mContainer, Some(rasterSize));
if (!pixbuf) {
return nullptr;
}
// Looks like all cursors need an alpha channel (tested on Gtk 2.4.4). This
// is of course not documented anywhere...
// So add one if there isn't one yet
if (!gdk_pixbuf_get_has_alpha(pixbuf)) {
RefPtr<GdkPixbuf> alphaBuf =
dont_AddRef(gdk_pixbuf_add_alpha(pixbuf, FALSE, 0, 0, 0));
pixbuf = std::move(alphaBuf);
if (!pixbuf) {
return nullptr;
}
}
cairo_surface_t* surface =
gdk_cairo_surface_create_from_pixbuf(pixbuf, gtkScale, nullptr);
if (!surface) {
return nullptr;
}
auto CleanupSurface =
MakeScopeExit([&]() { cairo_surface_destroy(surface); });
return gdk_cursor_new_from_surface(gdk_display_get_default(), surface,
aCursor.mHotspotX, aCursor.mHotspotY);
}
void nsWindow::SetCursor(const Cursor& aCursor) {
if (mWidgetCursorLocked || !mGdkWindow) {
return;
}
// Only change cursor if it's actually been changed
if (!mUpdateCursor && mCursor == aCursor) {
return;
}
mUpdateCursor = false;
mCursor = aCursor;
// Try to set the cursor image first, and fall back to the numeric cursor.
GdkCursor* imageCursor = nullptr;
if (mCustomCursorAllowed) {
imageCursor = GetCursorForImage(aCursor, GdkCeiledScaleFactor());
}
// When using a custom cursor, clear the cursor first using eCursor_none, in
// order to work around https://gitlab.gnome.org/GNOME/gtk/-/issues/6242
GdkCursor* nonImageCursor =
get_gtk_cursor(imageCursor ? eCursor_none : aCursor.mDefaultCursor);
auto CleanupCursor = mozilla::MakeScopeExit([&]() {
// get_gtk_cursor returns a weak reference, which we shouldn't unref.
if (imageCursor) {
g_object_unref(imageCursor);
}
});
gdk_window_set_cursor(mGdkWindow, nonImageCursor);
if (imageCursor) {
gdk_window_set_cursor(mGdkWindow, imageCursor);
}
}
void nsWindow::Invalidate(const LayoutDeviceIntRect& aRect) {
if (!mGdkWindow) {
return;
}
GdkRectangle rect = DevicePixelsToGdkRectRoundOut(aRect);
gdk_window_invalidate_rect(mGdkWindow, &rect, FALSE);
LOG("Invalidate (rect): %d %d %d %d\n", rect.x, rect.y, rect.width,
rect.height);
}
void* nsWindow::GetNativeData(uint32_t aDataType) {
switch (aDataType) {
case NS_NATIVE_WINDOW:
case NS_NATIVE_WIDGET: {
return mGdkWindow;
}
case NS_NATIVE_SHELLWIDGET:
return GetToplevelWidget();
case NS_NATIVE_WINDOW_WEBRTC_DEVICE_ID:
if (!mGdkWindow) {
return nullptr;
}
#ifdef MOZ_X11
if (GdkIsX11Display()) {
return (void*)GDK_WINDOW_XID(gdk_window_get_toplevel(mGdkWindow));
}
#endif
NS_WARNING(
"nsWindow::GetNativeData(): NS_NATIVE_WINDOW_WEBRTC_DEVICE_ID is not "
"handled on Wayland!");
return nullptr;
case NS_RAW_NATIVE_IME_CONTEXT: {
void* pseudoIMEContext = GetPseudoIMEContext();
if (pseudoIMEContext) {
return pseudoIMEContext;
}
// If IME context isn't available on this widget, we should set |this|
// instead of nullptr.
if (!mIMContext) {
return this;
}
return mIMContext.get();
}
case NS_NATIVE_OPENGL_CONTEXT:
return nullptr;
case NS_NATIVE_EGL_WINDOW: {
// On X11 we call it:
// 1) If window is mapped on OnMap() by nsWindow::ResumeCompositorImpl(),
// new EGLSurface/XWindow is created.
// 2) If window is hidden on OnUnmap(), we replace EGLSurface/XWindow
// by offline surface and release XWindow.
// On Wayland it:
// 1) If window is mapped on OnMap(), we request frame callback
// at MozContainer. If we get frame callback at MozContainer,
// nsWindow::ResumeCompositorImpl() is called from it
// and EGLSurface/wl_surface is created.
// 2) If window is hidden on OnUnmap(), we replace EGLSurface/wl_surface
// by offline surface and release XWindow.
// If nsWindow is already destroyed, don't try to get EGL window at all,
// we're going to be deleted anyway.
MutexAutoLock lock(mWindowVisibilityMutex);
void* eglWindow = nullptr;
if (mIsMapped && !mIsDestroyed) {
#ifdef MOZ_X11
if (GdkIsX11Display()) {
eglWindow = (void*)GDK_WINDOW_XID(mGdkWindow);
}
#endif
#ifdef MOZ_WAYLAND
if (GdkIsWaylandDisplay()) {
eglWindow = moz_container_wayland_get_egl_window(
mContainer, FractionalScaleFactor());
}
#endif
}
LOG("Get NS_NATIVE_EGL_WINDOW mGdkWindow %p returned eglWindow %p",
mGdkWindow, eglWindow);
return eglWindow;
}
default:
NS_WARNING("nsWindow::GetNativeData called with bad value");
return nullptr;
}
}
nsresult nsWindow::SetTitle(const nsAString& aTitle) {
if (!mShell) {
return NS_OK;
}
// convert the string into utf8 and set the title.
#define UTF8_FOLLOWBYTE(ch) (((ch) & 0xC0) == 0x80)
NS_ConvertUTF16toUTF8 titleUTF8(aTitle);
if (titleUTF8.Length() > NS_WINDOW_TITLE_MAX_LENGTH) {
// Truncate overlong titles (bug 167315). Make sure we chop after a
// complete sequence by making sure the next char isn't a follow-byte.
uint32_t len = NS_WINDOW_TITLE_MAX_LENGTH;
while (UTF8_FOLLOWBYTE(titleUTF8[len])) --len;
titleUTF8.Truncate(len);
}
gtk_window_set_title(GTK_WINDOW(mShell), (const char*)titleUTF8.get());
return NS_OK;
}
void nsWindow::SetIcon(const nsAString& aIconSpec) {
if (!mShell) {
return;
}
nsAutoCString iconName;
if (aIconSpec.EqualsLiteral("default")) {
nsAutoString brandName;
WidgetUtils::GetBrandShortName(brandName);
if (brandName.IsEmpty()) {
brandName.AssignLiteral(u"Mozilla");
}
AppendUTF16toUTF8(brandName, iconName);
ToLowerCase(iconName);
} else {
AppendUTF16toUTF8(aIconSpec, iconName);
}
nsCOMPtr<nsIFile> iconFile;
nsAutoCString path;
gint* iconSizes = gtk_icon_theme_get_icon_sizes(gtk_icon_theme_get_default(),
iconName.get());
bool foundIcon = (iconSizes[0] != 0);
g_free(iconSizes);
if (!foundIcon) {
// Look for icons with the following suffixes appended to the base name
// The last two entries (for the old XPM format) will be ignored unless
// no icons are found using other suffixes. XPM icons are deprecated.
const char16_t extensions[9][8] = {u".png", u"16.png", u"32.png",
u"48.png", u"64.png", u"128.png",
u"256.png", u".xpm", u"16.xpm"};
for (uint32_t i = 0; i < ArrayLength(extensions); i++) {
// Don't bother looking for XPM versions if we found a PNG.
if (i == ArrayLength(extensions) - 2 && foundIcon) break;
ResolveIconName(aIconSpec, nsDependentString(extensions[i]),
getter_AddRefs(iconFile));
if (iconFile) {
iconFile->GetNativePath(path);
GdkPixbuf* icon = gdk_pixbuf_new_from_file(path.get(), nullptr);
if (icon) {
gtk_icon_theme_add_builtin_icon(iconName.get(),
gdk_pixbuf_get_height(icon), icon);
g_object_unref(icon);
foundIcon = true;
}
}
}
}
// leave the default icon intact if no matching icons were found
if (foundIcon) {
gtk_window_set_icon_name(GTK_WINDOW(mShell), iconName.get());
}
}
/* TODO(bug 1655924): gdk_window_get_origin is can block waiting for the X
server for a long time, we would like to use the implementation below
instead. However, removing the synchronous x server queries causes a race
condition to surface, causing issues such as bug 1652743 and bug 1653711.
This code can be used instead of gdk_window_get_origin() but it cuases
such issues:
*aX = 0;
*aY = 0;
if (!aWindow) {
return;
}
GdkWindow* current = aWindow;
while (GdkWindow* parent = gdk_window_get_parent(current)) {
if (parent == current) {
break;
}
int x = 0;
int y = 0;
gdk_window_get_position(current, &x, &y);
*aX += x;
*aY += y;
current = parent;
}
*/
LayoutDeviceIntPoint nsWindow::WidgetToScreenOffset() {
// Don't use gdk_window_get_origin() on wl_subsurface Wayland popups
// https://gitlab.gnome.org/GNOME/gtk/-/issues/5287
if (IsWaylandPopup() && !mPopupUseMoveToRect) {
return mBounds.TopLeft();
}
GdkPoint origin{};
if (mGdkWindowOrigin.isSome()) {
origin = mGdkWindowOrigin.value();
} else if (mGdkWindow) {
gdk_window_get_origin(mGdkWindow, &origin.x, &origin.y);
mGdkWindowOrigin = Some(origin);
}
return GdkPointToDevicePixels(origin);
}
void nsWindow::CaptureRollupEvents(bool aDoCapture) {
LOG("CaptureRollupEvents(%d)\n", aDoCapture);
if (mIsDestroyed) {
return;
}
static constexpr auto kCaptureEventsMask =
GdkEventMask(GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK |
GDK_POINTER_MOTION_MASK | GDK_TOUCH_MASK);
static bool sSystemNeedsPointerGrab = [&] {
if (GdkIsWaylandDisplay()) {
return false;
}
// We only need to grab the pointer for X servers that move the focus with
// the pointer (like twm, sawfish...). Since we roll up popups on focus out,
// not grabbing the pointer triggers rollup when the mouse enters the popup
// and leaves the main window, see bug 1807482.
//
// FVWM is also affected but less severely: the pointer can enter the
// popup, but if it briefly moves out of the popup and over the main window
// then we see a focus change and roll up the popup.
//
// We don't do it for most common desktops, if only because it causes X11
// crashes like bug 1607713.
const auto& desktop = GetDesktopEnvironmentIdentifier();
return desktop.EqualsLiteral("twm") || desktop.EqualsLiteral("sawfish") ||
StringBeginsWith(desktop, "fvwm"_ns);
}();
const bool grabPointer = [] {
switch (StaticPrefs::widget_gtk_grab_pointer()) {
case 0:
return false;
case 1:
return true;
default:
return sSystemNeedsPointerGrab;
}
}();
if (!grabPointer) {
return;
}
mNeedsToRetryCapturingMouse = false;
if (aDoCapture) {
if (mIsDragPopup || DragInProgress()) {
// Don't add a grab if a drag is in progress, or if the widget is a drag
// feedback popup. (panels with type="drag").
return;
}
if (!mHasMappedToplevel) {
// On X, capturing an unmapped window is pointless (returns
// GDK_GRAB_NOT_VIEWABLE). Avoid the X server round-trip and just retry
// when we're mapped.
mNeedsToRetryCapturingMouse = true;
return;
}
// gdk_pointer_grab is deprecated in favor of gdk_device_grab, but that
// causes a strange bug on X11, most obviously with nested popup menus:
// we somehow take the pointer position relative to the top left of the
// outer menu and use it as if it were relative to the submenu. This
// doesn't happen with gdk_pointer_grab even though the code is very
// similar. See the video attached to bug 1750721 for a demonstration,
// and see also bug 1820542 for when the same thing happened with
// another attempt to use gdk_device_grab.
//
// (gdk_device_grab is deprecated in favor of gdk_seat_grab as of 3.20,
// but at the time of this writing we still support older versions of
// GTK 3.)
GdkGrabStatus status =
gdk_pointer_grab(GetToplevelGdkWindow(),
/* owner_events = */ true, kCaptureEventsMask,
/* confine_to = */ nullptr,
/* cursor = */ nullptr, GetLastUserInputTime());
Unused << NS_WARN_IF(status != GDK_GRAB_SUCCESS);
LOG(" > pointer grab with status %d", int(status));
gtk_grab_add(GTK_WIDGET(mContainer));
} else {
// There may not have been a drag in process when aDoCapture was set,
// so make sure to remove any added grab. This is a no-op if the grab
// was not added to this widget.
gtk_grab_remove(GTK_WIDGET(mContainer));
gdk_pointer_ungrab(GetLastUserInputTime());
}
}
nsresult nsWindow::GetAttention(int32_t aCycleCount) {
LOG("nsWindow::GetAttention");
GtkWidget* top_window = GetToplevelWidget();
GtkWidget* top_focused_window =
gFocusWindow ? gFocusWindow->GetToplevelWidget() : nullptr;
// Don't get attention if the window is focused anyway.
if (top_window && (gtk_widget_get_visible(top_window)) &&
top_window != top_focused_window) {
SetUrgencyHint(top_window, true);
}
return NS_OK;
}
bool nsWindow::HasPendingInputEvent() {
// This sucks, but gtk/gdk has no way to answer the question we want while
// excluding paint events, and there's no X API that will let us peek
// without blocking or removing. To prevent event reordering, peek
// anything except expose events. Reordering expose and others should be
// ok, hopefully.
bool haveEvent = false;
#ifdef MOZ_X11
XEvent ev;
if (GdkIsX11Display()) {
Display* display = GDK_DISPLAY_XDISPLAY(gdk_display_get_default());
haveEvent = XCheckMaskEvent(
display,
KeyPressMask | KeyReleaseMask | ButtonPressMask | ButtonReleaseMask |
EnterWindowMask | LeaveWindowMask | PointerMotionMask |
PointerMotionHintMask | Button1MotionMask | Button2MotionMask |
Button3MotionMask | Button4MotionMask | Button5MotionMask |
ButtonMotionMask | KeymapStateMask | VisibilityChangeMask |
StructureNotifyMask | ResizeRedirectMask | SubstructureNotifyMask |
SubstructureRedirectMask | FocusChangeMask | PropertyChangeMask |
ColormapChangeMask | OwnerGrabButtonMask,
&ev);
if (haveEvent) {
XPutBackEvent(display, &ev);
}
}
#endif
return haveEvent;
}
#ifdef cairo_copy_clip_rectangle_list
# error "Looks like we're including Mozilla's cairo instead of system cairo"
#endif
static bool ExtractExposeRegion(LayoutDeviceIntRegion& aRegion, cairo_t* cr) {
cairo_rectangle_list_t* rects = cairo_copy_clip_rectangle_list(cr);
if (rects->status != CAIRO_STATUS_SUCCESS) {
NS_WARNING("Failed to obtain cairo rectangle list.");
return false;
}
for (int i = 0; i < rects->num_rectangles; i++) {
const cairo_rectangle_t& r = rects->rectangles[i];
aRegion.Or(aRegion,
LayoutDeviceIntRect::Truncate((float)r.x, (float)r.y,
(float)r.width, (float)r.height));
}
cairo_rectangle_list_destroy(rects);
return true;
}
#ifdef MOZ_WAYLAND
void nsWindow::CreateCompositorVsyncDispatcher() {
LOG_VSYNC("nsWindow::CreateCompositorVsyncDispatcher()");
if (!mWaylandVsyncSource) {
LOG_VSYNC(
" mWaylandVsyncSource is missing, create "
"nsBaseWidget::CompositorVsyncDispatcher()");
nsBaseWidget::CreateCompositorVsyncDispatcher();
return;
}
if (!mCompositorVsyncDispatcherLock) {
mCompositorVsyncDispatcherLock =
MakeUnique<Mutex>("mCompositorVsyncDispatcherLock");
}
MutexAutoLock lock(*mCompositorVsyncDispatcherLock);
if (!mCompositorVsyncDispatcher) {
LOG_VSYNC(" create CompositorVsyncDispatcher()");
mCompositorVsyncDispatcher =
new CompositorVsyncDispatcher(mWaylandVsyncDispatcher);
}
}
#endif
void nsWindow::RequestRepaint(LayoutDeviceIntRegion& aRepaintRegion) {
WindowRenderer* renderer = GetWindowRenderer();
WebRenderLayerManager* layerManager = renderer->AsWebRender();
KnowsCompositor* knowsCompositor = renderer->AsKnowsCompositor();
if (knowsCompositor && layerManager && mCompositorSession) {
LOG("nsWindow::RequestRepaint()");
if (!mConfiguredClearColor && !IsPopup()) {
layerManager->WrBridge()->SendSetDefaultClearColor(LookAndFeel::Color(
LookAndFeel::ColorID::Window, PreferenceSheet::ColorSchemeForChrome(),
LookAndFeel::UseStandins::No));
mConfiguredClearColor = true;
}
// We need to paint to the screen even if nothing changed, since if we
// don't have a compositing window manager, our pixels could be stale.
layerManager->SetNeedsComposite(true);
layerManager->SendInvalidRegion(aRepaintRegion.ToUnknownRegion());
}
}
gboolean nsWindow::OnExposeEvent(cairo_t* cr) {
LOG("nsWindow::OnExposeEvent GdkWindow [%p] XID [0x%lx]", mGdkWindow,
GetX11Window());
// This might destroy us.
NotifyOcclusionState(OcclusionState::VISIBLE);
if (mIsDestroyed) {
LOG("destroyed after NotifyOcclusionState()");
return FALSE;
}
// Send any pending resize events so that layout can update.
// May run event loop and destroy us.
MaybeDispatchResized();
if (mIsDestroyed) {
LOG("destroyed after MaybeDispatchResized()");
return FALSE;
}
// Windows that are not visible will be painted after they become visible.
if (!mGdkWindow || !mHasMappedToplevel) {
LOG("quit, !mGdkWindow || !mHasMappedToplevel");
return FALSE;
}
#ifdef MOZ_WAYLAND
if (GdkIsWaylandDisplay() && !moz_container_wayland_can_draw(mContainer)) {
LOG("quit, !moz_container_wayland_can_draw()");
return FALSE;
}
#endif
if (!GetListener()) {
LOG("quit, !GetListener()");
return FALSE;
}
LayoutDeviceIntRegion exposeRegion;
if (!ExtractExposeRegion(exposeRegion, cr)) {
LOG(" no rects, quit");
return FALSE;
}
gint scale = GdkCeiledScaleFactor();
LayoutDeviceIntRegion region = exposeRegion;
region.ScaleRoundOut(scale, scale);
RequestRepaint(region);
RefPtr<nsWindow> strongThis(this);
// Dispatch WillPaintWindow notification to allow scripts etc. to run
// before we paint. It also spins event loop which may show/hide the window
// so we may have new renderer etc.
GetListener()->WillPaintWindow(this);
// If the window has been destroyed during the will paint notification,
// there is nothing left to do.
if (!mGdkWindow || mIsDestroyed) {
LOG("quit, !mGdkWindow || mIsDestroyed");
return TRUE;
}
// Re-get all rendering components since the will paint notification
// might have killed it.
nsIWidgetListener* listener = GetListener();
if (!listener) {
LOG("quit, !listener");
return FALSE;
}
WindowRenderer* renderer = GetWindowRenderer();
WebRenderLayerManager* layerManager = renderer->AsWebRender();
KnowsCompositor* knowsCompositor = renderer->AsKnowsCompositor();
if (knowsCompositor && layerManager && layerManager->NeedsComposite()) {
LOG("needs composite, ScheduleComposite() call");
layerManager->ScheduleComposite(wr::RenderReasons::WIDGET);
layerManager->SetNeedsComposite(false);
}
// Our bounds may have changed after calling WillPaintWindow. Clip
// to the new bounds here. The region is relative to this
// window.
region.And(region, LayoutDeviceIntRect(0, 0, mBounds.width, mBounds.height));
bool shaped = false;
if (TransparencyMode::Transparent == GetTransparencyMode()) {
auto* window = static_cast<nsWindow*>(GetTopLevelWidget());
if (mTransparencyBitmapForTitlebar) {
if (mSizeMode == nsSizeMode_Normal) {
window->UpdateTitlebarTransparencyBitmap();
} else {
window->ClearTransparencyBitmap();
}
} else {
if (mHasAlphaVisual) {
// Remove possible shape mask from when window manger was not
// previously compositing.
window->ClearTransparencyBitmap();
} else {
shaped = true;
}
}
}
if (region.IsEmpty()) {
LOG("quit, region.IsEmpty()");
return TRUE;
}
// If this widget uses OMTC...
if (renderer->GetBackendType() == LayersBackend::LAYERS_WR) {
LOG("redirect painting to OMTC rendering...");
listener->PaintWindow(this, region);
// Re-get the listener since the will paint notification might have
// killed it.
listener = GetListener();
if (!listener) {
return TRUE;
}
listener->DidPaintWindow();
return TRUE;
}
BufferMode layerBuffering = BufferMode::BUFFERED;
RefPtr<DrawTarget> dt = StartRemoteDrawingInRegion(region, &layerBuffering);
if (!dt || !dt->IsValid()) {
return FALSE;
}
Maybe<gfxContext> ctx;
IntRect boundsRect = region.GetBounds().ToUnknownRect();
IntPoint offset(0, 0);
if (dt->GetSize() == boundsRect.Size()) {
offset = boundsRect.TopLeft();
dt->SetTransform(Matrix::Translation(-offset));
}
#ifdef MOZ_X11
if (shaped) {
// Collapse update area to the bounding box. This is so we only have to
// call UpdateTranslucentWindowAlpha once. After we have dropped
// support for non-Thebes graphics, UpdateTranslucentWindowAlpha will be
// our private interface so we can rework things to avoid this.
dt->PushClipRect(Rect(boundsRect));
// The double buffering is done here to extract the shape mask.
// (The shape mask won't be necessary when a visual with an alpha
// channel is used on compositing window managers.)
layerBuffering = BufferMode::BUFFER_NONE;
RefPtr<DrawTarget> destDT =
dt->CreateSimilarDrawTarget(boundsRect.Size(), SurfaceFormat::B8G8R8A8);
if (!destDT || !destDT->IsValid()) {
return FALSE;
}
destDT->SetTransform(Matrix::Translation(-boundsRect.TopLeft()));
ctx.emplace(destDT, /* aPreserveTransform */ true);
} else {
gfxUtils::ClipToRegion(dt, region.ToUnknownRegion());
ctx.emplace(dt, /* aPreserveTransform */ true);
}
# if 0
// NOTE: Paint flashing region would be wrong for cairo, since
// cairo inflates the update region, etc. So don't paint flash
// for cairo.
# ifdef DEBUG
// XXX aEvent->region may refer to a newly-invalid area. FIXME
if (0 && WANT_PAINT_FLASHING && gtk_widget_get_window(aEvent))
gdk_window_flash(mGdkWindow, 1, 100, aEvent->region);
# endif
# endif
#endif // MOZ_X11
bool painted = false;
{
if (renderer->GetBackendType() == LayersBackend::LAYERS_NONE) {
if (GetTransparencyMode() == TransparencyMode::Transparent &&
layerBuffering == BufferMode::BUFFER_NONE && mHasAlphaVisual) {
// If our draw target is unbuffered and we use an alpha channel,
// clear the image beforehand to ensure we don't get artifacts from a
// reused SHM image. See bug 1258086.
dt->ClearRect(Rect(boundsRect));
}
AutoLayerManagerSetup setupLayerManager(
this, ctx.isNothing() ? nullptr : &ctx.ref(), layerBuffering);
painted = listener->PaintWindow(this, region);
// Re-get the listener since the will paint notification might have
// killed it.
listener = GetListener();
if (!listener) {
return TRUE;
}
}
}
#ifdef MOZ_X11
// PaintWindow can Destroy us (bug 378273), avoid doing any paint
// operations below if that happened - it will lead to XError and exit().
if (shaped) {
if (MOZ_LIKELY(!mIsDestroyed)) {
if (painted) {
RefPtr<SourceSurface> surf = ctx->GetDrawTarget()->Snapshot();
UpdateAlpha(surf, boundsRect);
dt->DrawSurface(surf, Rect(boundsRect),
Rect(0, 0, boundsRect.width, boundsRect.height),
DrawSurfaceOptions(SamplingFilter::POINT),
DrawOptions(1.0f, CompositionOp::OP_SOURCE));
}
}
}
ctx.reset();
dt->PopClip();
#endif // MOZ_X11
EndRemoteDrawingInRegion(dt, region);
listener->DidPaintWindow();
// Synchronously flush any new dirty areas
cairo_region_t* dirtyArea = gdk_window_get_update_area(mGdkWindow);
if (dirtyArea) {
gdk_window_invalidate_region(mGdkWindow, dirtyArea, false);
cairo_region_destroy(dirtyArea);
gdk_window_process_updates(mGdkWindow, false);
}
// check the return value!
return TRUE;
}
void nsWindow::UpdateAlpha(SourceSurface* aSourceSurface,
nsIntRect aBoundsRect) {
// We need to create our own buffer to force the stride to match the
// expected stride.
int32_t stride =
GetAlignedStride<4>(aBoundsRect.width, BytesPerPixel(SurfaceFormat::A8));
if (stride == 0) {
return;
}
int32_t bufferSize = stride * aBoundsRect.height;
auto imageBuffer = MakeUniqueFallible<uint8_t[]>(bufferSize);
{
RefPtr<DrawTarget> drawTarget = gfxPlatform::CreateDrawTargetForData(
imageBuffer.get(), aBoundsRect.Size(), stride, SurfaceFormat::A8);
if (drawTarget) {
drawTarget->DrawSurface(aSourceSurface,
Rect(0, 0, aBoundsRect.width, aBoundsRect.height),
Rect(0, 0, aSourceSurface->GetSize().width,
aSourceSurface->GetSize().height),
DrawSurfaceOptions(SamplingFilter::POINT),
DrawOptions(1.0f, CompositionOp::OP_SOURCE));
}
}
UpdateTranslucentWindowAlphaInternal(aBoundsRect, imageBuffer.get(), stride);
}
gboolean nsWindow::OnConfigureEvent(GtkWidget* aWidget,
GdkEventConfigure* aEvent) {
// These events are only received on toplevel windows.
//
// GDK ensures that the coordinates are the client window top-left wrt the
// root window.
//
// GDK calculates the cordinates for real ConfigureNotify events on
// managed windows (that would normally be relative to the parent
// window).
//
// Synthetic ConfigureNotify events are from the window manager and
// already relative to the root window. GDK creates all X windows with
// border_width = 0, so synthetic events also indicate the top-left of
// the client window.
//
// Override-redirect windows are children of the root window so parent
// coordinates are root coordinates.
#ifdef MOZ_LOGGING
int scale = mGdkWindow ? gdk_window_get_scale_factor(mGdkWindow) : -1;
LOG("configure event %d,%d -> %d x %d direct mGdkWindow scale %d (scaled "
"size %d x %d)\n",
aEvent->x, aEvent->y, aEvent->width, aEvent->height, scale,
aEvent->width * scale, aEvent->height * scale);
#endif
if (mPendingConfigures > 0) {
mPendingConfigures--;
}
ResetScreenBounds();
// Don't fire configure event for scale changes, we handle that
// OnScaleChanged event. Skip that for toplevel windows only.
if (mGdkWindow && IsTopLevelWindowType()) {
if (mCeiledScaleFactor != gdk_window_get_scale_factor(mGdkWindow)) {
LOG(" scale factor changed to %d,return early",
gdk_window_get_scale_factor(mGdkWindow));
return FALSE;
}
}
LayoutDeviceIntRect screenBounds = GetScreenBounds();
if (IsTopLevelWindowType()) {
// This check avoids unwanted rollup on spurious configure events from
// Cygwin/X (bug 672103).
if (mBounds.x != screenBounds.x || mBounds.y != screenBounds.y) {
RollupAllMenus();
}
}
NS_ASSERTION(GTK_IS_WINDOW(aWidget),
"Configure event on widget that is not a GtkWindow");
if (mGdkWindow &&
gtk_window_get_window_type(GTK_WINDOW(aWidget)) == GTK_WINDOW_POPUP) {
// Override-redirect window
//
// These windows should not be moved by the window manager, and so any
// change in position is a result of our direction. mBounds has
// already been set in std::move() or Resize(), and that is more
// up-to-date than the position in the ConfigureNotify event if the
// event is from an earlier window move.
//
// Skipping the WindowMoved call saves context menus from an infinite
// loop when nsXULPopupManager::PopupMoved moves the window to the new
// position and nsMenuPopupFrame::SetPopupPosition adds
// offsetForContextMenu on each iteration.
// Our back buffer might have been invalidated while we drew the last
// frame, and its contents might be incorrect. See bug 1280653 comment 7
// and comment 10. Specifically we must ensure we recomposite the frame
// as soon as possible to avoid the corrupted frame being displayed.
GetWindowRenderer()->FlushRendering(wr::RenderReasons::WIDGET);
return FALSE;
}
mBounds.MoveTo(screenBounds.TopLeft());
RecomputeClientOffset(/* aNotify = */ false);
// XXX mozilla will invalidate the entire window after this move
// complete. wtf?
NotifyWindowMoved(mBounds.x, mBounds.y);
return FALSE;
}
void nsWindow::OnSizeAllocate(GtkAllocation* aAllocation) {
LOG("nsWindow::OnSizeAllocate %d,%d -> %d x %d\n", aAllocation->x,
aAllocation->y, aAllocation->width, aAllocation->height);
ResetScreenBounds();
// Client offset are updated by _NET_FRAME_EXTENTS on X11 when system titlebar
// is enabled. In either cases (Wayland or system titlebar is off on X11)
// we don't get _NET_FRAME_EXTENTS X11 property notification so we derive
// it from mContainer position.
RecomputeClientOffset(/* aNotify = */ true);
mHasReceivedSizeAllocate = true;
LayoutDeviceIntSize size = GdkRectToDevicePixels(*aAllocation).Size();
// Sometimes the window manager gives us garbage sizes (way past the maximum
// texture size) causing crashes if we don't enforce size constraints again
// here.
ConstrainSize(&size.width, &size.height);
if (mBounds.Size() == size) {
LOG(" Already the same size");
// mBounds was set at Create() or Resize().
if (mNeedsDispatchSize != LayoutDeviceIntSize(-1, -1)) {
LOG(" No longer needs to dispatch %dx%d", mNeedsDispatchSize.width,
mNeedsDispatchSize.height);
mNeedsDispatchSize = LayoutDeviceIntSize(-1, -1);
}
return;
}
// Invalidate the new part of the window now for the pending paint to
// minimize background flashes (GDK does not do this for external resizes
// of toplevels.)
if (mGdkWindow) {
if (mBounds.width < size.width) {
GdkRectangle rect = DevicePixelsToGdkRectRoundOut(LayoutDeviceIntRect(
mBounds.width, 0, size.width - mBounds.width, size.height));
gdk_window_invalidate_rect(mGdkWindow, &rect, FALSE);
}
if (mBounds.height < size.height) {
GdkRectangle rect = DevicePixelsToGdkRectRoundOut(LayoutDeviceIntRect(
0, mBounds.height, size.width, size.height - mBounds.height));
gdk_window_invalidate_rect(mGdkWindow, &rect, FALSE);
}
}
// If we update mBounds here, then inner/outerHeight are out of sync until
// we call WindowResized.
mNeedsDispatchSize = size;
// Gecko permits running nested event loops during processing of events,
// GtkWindow callers of gtk_widget_size_allocate expect the signal
// handlers to return sometime in the near future.
NS_DispatchToCurrentThread(NewRunnableMethod(
"nsWindow::MaybeDispatchResized", this, &nsWindow::MaybeDispatchResized));
}
void nsWindow::OnDeleteEvent() {
if (mWidgetListener) mWidgetListener->RequestWindowClose(this);
}
void nsWindow::OnEnterNotifyEvent(GdkEventCrossing* aEvent) {
LOG("enter notify (win=%p, sub=%p): %f, %f mode %d, detail %d\n",
aEvent->window, aEvent->subwindow, aEvent->x, aEvent->y, aEvent->mode,
aEvent->detail);
// This skips NotifyVirtual and NotifyNonlinearVirtual enter notify events
// when the pointer enters a child window. If the destination window is a
// Gecko window then we'll catch the corresponding event on that window,
// but we won't notice when the pointer directly enters a foreign (plugin)
// child window without passing over a visible portion of a Gecko window.
if (aEvent->subwindow) {
return;
}
// Check before checking for ungrab as the button state may have
// changed while a non-Gecko ancestor window had a pointer grab.
DispatchMissedButtonReleases(aEvent);
WidgetMouseEvent event(true, eMouseEnterIntoWidget, this,
WidgetMouseEvent::eReal);
event.mRefPoint = GdkEventCoordsToDevicePixels(aEvent->x, aEvent->y);
event.AssignEventTime(GetWidgetEventTime(aEvent->time));
LOG("OnEnterNotify");
DispatchInputEvent(&event);
}
// Some window managers send a bogus top-level leave-notify event on every
// click. That confuses our event handling code in ways that can break websites,
// see bug 1805939 for details.
//
// Make sure to only check this on bogus environments, since for environments
// with CSD, gdk_device_get_window_at_position could return the window even when
// the pointer is in the decoration area.
static bool IsBogusLeaveNotifyEvent(GdkWindow* aWindow,
GdkEventCrossing* aEvent) {
static bool sBogusWm = [] {
if (GdkIsWaylandDisplay()) {
return false;
}
const auto& desktopEnv = GetDesktopEnvironmentIdentifier();
return desktopEnv.EqualsLiteral("fluxbox") || // Bug 1805939 comment 0.
desktopEnv.EqualsLiteral("blackbox") || // Bug 1805939 comment 32.
desktopEnv.EqualsLiteral("lg3d") || // Bug 1820405.
desktopEnv.EqualsLiteral("pekwm") || // Bug 1822911.
StringBeginsWith(desktopEnv, "fvwm"_ns);
}();
const bool shouldCheck = [] {
switch (StaticPrefs::widget_gtk_ignore_bogus_leave_notify()) {
case 0:
return false;
case 1:
return true;
default:
return sBogusWm;
}
}();
if (!shouldCheck || !aWindow) {
return false;
}
GdkDevice* pointer = GdkGetPointer();
GdkWindow* winAtPt =
gdk_device_get_window_at_position(pointer, nullptr, nullptr);
if (!winAtPt) {
return false;
}
// We're still in the same top level window, ignore this leave notify event.
GdkWindow* topLevelAtPt = gdk_window_get_toplevel(winAtPt);
GdkWindow* topLevelWidget = gdk_window_get_toplevel(aWindow);
return topLevelAtPt == topLevelWidget;
}
void nsWindow::OnLeaveNotifyEvent(GdkEventCrossing* aEvent) {
LOG("leave notify (win=%p, sub=%p): %f, %f mode %d, detail %d\n",
aEvent->window, aEvent->subwindow, aEvent->x, aEvent->y, aEvent->mode,
aEvent->detail);
// This ignores NotifyVirtual and NotifyNonlinearVirtual leave notify
// events when the pointer leaves a child window. If the destination
// window is a Gecko window then we'll catch the corresponding event on
// that window.
//
// XXXkt However, we will miss toplevel exits when the pointer directly
// leaves a foreign (plugin) child window without passing over a visible
// portion of a Gecko window.
if (aEvent->subwindow) {
return;
}
// The filter out for subwindows should make sure that this is targeted to
// this nsWindow.
const bool leavingTopLevel = IsTopLevelWindowType();
if (leavingTopLevel && IsBogusLeaveNotifyEvent(mGdkWindow, aEvent)) {
return;
}
WidgetMouseEvent event(true, eMouseExitFromWidget, this,
WidgetMouseEvent::eReal);
event.mRefPoint = GdkEventCoordsToDevicePixels(aEvent->x, aEvent->y);
event.AssignEventTime(GetWidgetEventTime(aEvent->time));
event.mExitFrom = Some(leavingTopLevel ? WidgetMouseEvent::ePlatformTopLevel
: WidgetMouseEvent::ePlatformChild);
LOG("OnLeaveNotify");
DispatchInputEvent(&event);
}
Maybe<GdkWindowEdge> nsWindow::CheckResizerEdge(
const LayoutDeviceIntPoint& aPoint) {
const bool canResize = [&] {
// Don't allow resizing maximized/fullscreen windows.
if (mSizeMode != nsSizeMode_Normal) {
return false;
}
if (mIsPIPWindow) {
// Note that since we do show resizers on left/right sides on PIP windows,
// we still want the resizers there, even when tiled.
return true;
}
if (!mDrawInTitlebar) {
return false;
}
// On KDE, allow for 1 extra pixel at the top of regular windows when
// drawing to the titlebar. This matches the native titlebar behavior on
// that environment. See bug 1813554.
//
// Don't do that on GNOME (see bug 1822764). If we wanted to do this on
// GNOME we'd need an extra check for mIsTiled, since the window is "stuck"
// to the top and bottom.
//
// Other DEs are untested.
return mDrawInTitlebar && IsKdeDesktopEnvironment();
}();
if (!canResize) {
return Nothing();
}
// If we're not in a PiP window, allow 1px resizer edge from the top edge,
// and nothing else.
// This is to allow resizes of tiled windows on KDE, see bug 1813554.
const int resizerHeight = (mIsPIPWindow ? 15 : 1) * GdkCeiledScaleFactor();
const int resizerWidth = resizerHeight * 4;
const int topDist = aPoint.y;
const int leftDist = aPoint.x;
const int rightDist = mBounds.width - aPoint.x;
const int bottomDist = mBounds.height - aPoint.y;
// We can't emulate resize of North/West edges on Wayland as we can't shift
// toplevel window.
bool waylandLimitedResize = mAspectRatio != 0.0f && GdkIsWaylandDisplay();
if (topDist <= resizerHeight) {
if (rightDist <= resizerWidth) {
return Some(GDK_WINDOW_EDGE_NORTH_EAST);
}
if (leftDist <= resizerWidth) {
return Some(GDK_WINDOW_EDGE_NORTH_WEST);
}
return waylandLimitedResize ? Nothing() : Some(GDK_WINDOW_EDGE_NORTH);
}
if (!mIsPIPWindow) {
return Nothing();
}
if (bottomDist <= resizerHeight) {
if (leftDist <= resizerWidth) {
return Some(GDK_WINDOW_EDGE_SOUTH_WEST);
}
if (rightDist <= resizerWidth) {
return Some(GDK_WINDOW_EDGE_SOUTH_EAST);
}
return Some(GDK_WINDOW_EDGE_SOUTH);
}
if (leftDist <= resizerHeight) {
if (topDist <= resizerWidth) {
return Some(GDK_WINDOW_EDGE_NORTH_WEST);
}
if (bottomDist <= resizerWidth) {
return Some(GDK_WINDOW_EDGE_SOUTH_WEST);
}
return waylandLimitedResize ? Nothing() : Some(GDK_WINDOW_EDGE_WEST);
}
if (rightDist <= resizerHeight) {
if (topDist <= resizerWidth) {
return Some(GDK_WINDOW_EDGE_NORTH_EAST);
}
if (bottomDist <= resizerWidth) {
return Some(GDK_WINDOW_EDGE_SOUTH_EAST);
}
return Some(GDK_WINDOW_EDGE_EAST);
}
return Nothing();
}
template <typename Event>
static LayoutDeviceIntPoint GetRefPoint(nsWindow* aWindow, Event* aEvent) {
if (aEvent->window == aWindow->GetGdkWindow()) {
// we are the window that the event happened on so no need for expensive
// WidgetToScreenOffset
return aWindow->GdkEventCoordsToDevicePixels(aEvent->x, aEvent->y);
}
// XXX we're never quite sure which GdkWindow the event came from due to our
// custom bubbling in scroll_event_cb(), so use ScreenToWidget to translate
// the screen root coordinates into coordinates relative to this widget.
return aWindow->GdkEventCoordsToDevicePixels(aEvent->x_root, aEvent->y_root) -
aWindow->WidgetToScreenOffset();
}
void nsWindow::EmulateResizeDrag(GdkEventMotion* aEvent) {
auto newPoint = LayoutDeviceIntPoint::Floor(aEvent->x, aEvent->y);
LayoutDeviceIntPoint diff = newPoint - mLastResizePoint;
mLastResizePoint = newPoint;
GdkRectangle size = DevicePixelsToGdkSizeRoundUp(mBounds.Size());
LayoutDeviceIntSize newSize(size.width + diff.x, size.height + diff.y);
if (mAspectResizer.value() == GTK_ORIENTATION_VERTICAL) {
newSize.width = int(newSize.height * mAspectRatio);
} else { // GTK_ORIENTATION_HORIZONTAL
newSize.height = int(newSize.width / mAspectRatio);
}
LOG(" aspect ratio correction %d x %d aspect %f\n", newSize.width,
newSize.height, mAspectRatio);
gtk_window_resize(GTK_WINDOW(mShell), newSize.width, newSize.height);
}
void nsWindow::OnMotionNotifyEvent(GdkEventMotion* aEvent) {
if (!mGdkWindow) {
return;
}
// Emulate gdk_window_begin_resize_drag() for windows
// with fixed aspect ratio on Wayland.
if (mAspectResizer && mAspectRatio != 0.0f) {
EmulateResizeDrag(aEvent);
return;
}
if (mWindowShouldStartDragging) {
mWindowShouldStartDragging = false;
GdkWindow* dragWindow = nullptr;
// find the top-level window
if (mGdkWindow) {
dragWindow = gdk_window_get_toplevel(mGdkWindow);
MOZ_ASSERT(dragWindow, "gdk_window_get_toplevel should not return null");
}
#ifdef MOZ_X11
if (dragWindow && GdkIsX11Display()) {
// Workaround for https://bugzilla.gnome.org/show_bug.cgi?id=789054
// To avoid crashes disable double-click on WM without _NET_WM_MOVERESIZE.
// See _should_perform_ewmh_drag() at gdkwindow-x11.c
GdkScreen* screen = gdk_window_get_screen(dragWindow);
GdkAtom atom = gdk_atom_intern("_NET_WM_MOVERESIZE", FALSE);
if (!gdk_x11_screen_supports_net_wm_hint(screen, atom)) {
dragWindow = nullptr;
}
}
#endif
if (dragWindow) {
gdk_window_begin_move_drag(dragWindow, 1, aEvent->x_root, aEvent->y_root,
aEvent->time);
return;
}
}
mWidgetCursorLocked = false;
const auto refPoint = GetRefPoint(this, aEvent);
if (auto edge = CheckResizerEdge(refPoint)) {
nsCursor cursor = eCursor_none;
switch (*edge) {
case GDK_WINDOW_EDGE_SOUTH:
case GDK_WINDOW_EDGE_NORTH:
cursor = eCursor_ns_resize;
break;
case GDK_WINDOW_EDGE_WEST:
case GDK_WINDOW_EDGE_EAST:
cursor = eCursor_ew_resize;
break;
case GDK_WINDOW_EDGE_NORTH_WEST:
case GDK_WINDOW_EDGE_SOUTH_EAST:
cursor = eCursor_nwse_resize;
break;
case GDK_WINDOW_EDGE_NORTH_EAST:
case GDK_WINDOW_EDGE_SOUTH_WEST:
cursor = eCursor_nesw_resize;
break;
}
SetCursor(Cursor{cursor});
// If we set resize cursor on widget level keep it locked and prevent layout
// to switch it back to default (by synthetic mouse events for instance)
// until resize is finished. This affects PIP windows only.
if (mIsPIPWindow) {
mWidgetCursorLocked = true;
}
return;
}
WidgetMouseEvent event(true, eMouseMove, this, WidgetMouseEvent::eReal);
gdouble pressure = 0;
gdk_event_get_axis((GdkEvent*)aEvent, GDK_AXIS_PRESSURE, &pressure);
// Sometime gdk generate 0 pressure value between normal values
// We have to ignore that and use last valid value
if (pressure) {
mLastMotionPressure = pressure;
}
event.mPressure = mLastMotionPressure;
event.mRefPoint = refPoint;
event.AssignEventTime(GetWidgetEventTime(aEvent->time));
KeymapWrapper::InitInputEvent(event, aEvent->state);
InitPenEvent(event, (GdkEvent*)aEvent);
DispatchInputEvent(&event);
}
// If the automatic pointer grab on ButtonPress has deactivated before
// ButtonRelease, and the mouse button is released while the pointer is not
// over any a Gecko window, then the ButtonRelease event will not be received.
// (A similar situation exists when the pointer is grabbed with owner_events
// True as the ButtonRelease may be received on a foreign [plugin] window).
// Use this method to check for released buttons when the pointer returns to a
// Gecko window.
void nsWindow::DispatchMissedButtonReleases(GdkEventCrossing* aGdkEvent) {
guint changed = aGdkEvent->state ^ gButtonState;
// Only consider button releases.
// (Ignore button presses that occurred outside Gecko.)
guint released = changed & gButtonState;
gButtonState = aGdkEvent->state;
// Loop over each button, excluding mouse wheel buttons 4 and 5 for which
// GDK ignores releases.
for (guint buttonMask = GDK_BUTTON1_MASK; buttonMask <= GDK_BUTTON3_MASK;
buttonMask <<= 1) {
if (released & buttonMask) {
int16_t buttonType;
switch (buttonMask) {
case GDK_BUTTON1_MASK:
buttonType = MouseButton::ePrimary;
break;
case GDK_BUTTON2_MASK:
buttonType = MouseButton::eMiddle;
break;
default:
NS_ASSERTION(buttonMask == GDK_BUTTON3_MASK,
"Unexpected button mask");
buttonType = MouseButton::eSecondary;
}
LOG("Synthesized button %u release", guint(buttonType + 1));
// Dispatch a synthesized button up event to tell Gecko about the
// change in state. This event is marked as synthesized so that
// it is not dispatched as a DOM event, because we don't know the
// position, widget, modifiers, or time/order.
WidgetMouseEvent synthEvent(true, eMouseUp, this,
WidgetMouseEvent::eSynthesized);
synthEvent.mButton = buttonType;
DispatchInputEvent(&synthEvent);
}
}
}
void nsWindow::InitButtonEvent(WidgetMouseEvent& aEvent,
GdkEventButton* aGdkEvent,
const LayoutDeviceIntPoint& aRefPoint) {
aEvent.mRefPoint = aRefPoint;
guint modifierState = aGdkEvent->state;
// aEvent's state includes the button state from immediately before this
// event. If aEvent is a mousedown or mouseup event, we need to update
// the button state.
guint buttonMask = 0;
switch (aGdkEvent->button) {
case 1:
buttonMask = GDK_BUTTON1_MASK;
break;
case 2:
buttonMask = GDK_BUTTON2_MASK;
break;
case 3:
buttonMask = GDK_BUTTON3_MASK;
break;
}
if (aGdkEvent->type == GDK_BUTTON_RELEASE) {
modifierState &= ~buttonMask;
} else {
modifierState |= buttonMask;
}
KeymapWrapper::InitInputEvent(aEvent, modifierState);
aEvent.AssignEventTime(GetWidgetEventTime(aGdkEvent->time));
switch (aGdkEvent->type) {
case GDK_2BUTTON_PRESS:
aEvent.mClickCount = 2;
break;
case GDK_3BUTTON_PRESS:
aEvent.mClickCount = 3;
break;
// default is one click
default:
aEvent.mClickCount = 1;
}
}
static guint ButtonMaskFromGDKButton(guint button) {
return GDK_BUTTON1_MASK << (button - 1);
}
void nsWindow::DispatchContextMenuEventFromMouseEvent(
uint16_t domButton, GdkEventButton* aEvent,
const LayoutDeviceIntPoint& aRefPoint) {
if (domButton == MouseButton::eSecondary && MOZ_LIKELY(!mIsDestroyed)) {
Maybe<WidgetPointerEvent> pointerEvent;
Maybe<WidgetMouseEvent> mouseEvent;
if (StaticPrefs::dom_w3c_pointer_events_dispatch_click_as_pointer_event()) {
pointerEvent.emplace(true, eContextMenu, this);
} else {
mouseEvent.emplace(true, eContextMenu, this, WidgetMouseEvent::eReal);
}
WidgetMouseEvent& contextMenuEvent =
pointerEvent.isSome() ? pointerEvent.ref() : mouseEvent.ref();
InitButtonEvent(contextMenuEvent, aEvent, aRefPoint);
contextMenuEvent.mPressure = mLastMotionPressure;
DispatchInputEvent(&contextMenuEvent);
}
}
void nsWindow::TryToShowNativeWindowMenu(GdkEventButton* aEvent) {
if (!gdk_window_show_window_menu(GetToplevelGdkWindow(), (GdkEvent*)aEvent)) {
NS_WARNING("Native context menu wasn't shown");
}
}
bool nsWindow::DoTitlebarAction(LookAndFeel::TitlebarEvent aEvent,
GdkEventButton* aButtonEvent) {
LOG("DoTitlebarAction %s click",
aEvent == LookAndFeel::TitlebarEvent::Double_Click ? "double" : "middle");
switch (LookAndFeel::GetTitlebarAction(aEvent)) {
case LookAndFeel::TitlebarAction::WindowMenu:
// Titlebar app menu
LOG(" action menu");
TryToShowNativeWindowMenu(aButtonEvent);
break;
case LookAndFeel::TitlebarAction::WindowLower:
LOG(" action lower");
// Lower is part of gtk_surface1 protocol which we can't support
// as Gtk keeps it private. So emulate it by minimize.
if (GdkIsWaylandDisplay()) {
SetSizeMode(nsSizeMode_Minimized);
} else {
gdk_window_lower(GetToplevelGdkWindow());
}
break;
case LookAndFeel::TitlebarAction::WindowMinimize:
LOG(" action minimize");
SetSizeMode(nsSizeMode_Minimized);
break;
case LookAndFeel::TitlebarAction::WindowMaximize:
LOG(" action maximize");
SetSizeMode(nsSizeMode_Maximized);
break;
case LookAndFeel::TitlebarAction::WindowMaximizeToggle:
LOG(" action toggle maximize");
if (mSizeMode == nsSizeMode_Maximized) {
SetSizeMode(nsSizeMode_Normal);
} else if (mSizeMode == nsSizeMode_Normal) {
SetSizeMode(nsSizeMode_Maximized);
}
break;
case LookAndFeel::TitlebarAction::None:
default:
LOG(" action none");
return false;
}
return true;
}
void nsWindow::OnButtonPressEvent(GdkEventButton* aEvent) {
LOG("Button %u press\n", aEvent->button);
SetLastMousePressEvent((GdkEvent*)aEvent);
// If you double click in GDK, it will actually generate a second
// GDK_BUTTON_PRESS before sending the GDK_2BUTTON_PRESS, and this is
// different than the DOM spec. GDK puts this in the queue
// programatically, so it's safe to assume that if there's a
// double click in the queue, it was generated so we can just drop
// this click.
GUniquePtr<GdkEvent> peekedEvent(gdk_event_peek());
if (peekedEvent) {
GdkEventType type = peekedEvent->any.type;
if (type == GDK_2BUTTON_PRESS || type == GDK_3BUTTON_PRESS) {
return;
}
}
nsWindow* containerWindow = GetContainerWindow();
if (!gFocusWindow && containerWindow) {
containerWindow->DispatchActivateEvent();
}
const auto refPoint = GetRefPoint(this, aEvent);
// check to see if we should rollup
if (CheckForRollup(aEvent->x_root, aEvent->y_root, false, false)) {
if (aEvent->button == 3 && mDraggableRegion.Contains(refPoint)) {
GUniquePtr<GdkEvent> eventCopy;
if (aEvent->type != GDK_BUTTON_PRESS) {
// If the user double-clicks too fast we'll get a 2BUTTON_PRESS event
// instead, and that isn't handled by open_window_menu, so coerce it
// into a regular press.
eventCopy.reset(gdk_event_copy((GdkEvent*)aEvent));
eventCopy->type = GDK_BUTTON_PRESS;
}
TryToShowNativeWindowMenu(eventCopy ? &eventCopy->button : aEvent);
}
return;
}
// Check to see if the event is within our window's resize region
if (auto edge = CheckResizerEdge(refPoint)) {
// On Wayland Gtk fails to vertically/horizontally resize windows
// with fixed aspect ratio. We need to emulate
// gdk_window_begin_resize_drag() at OnMotionNotifyEvent().
if (mAspectRatio != 0.0f && GdkIsWaylandDisplay()) {
mLastResizePoint = LayoutDeviceIntPoint::Floor(aEvent->x, aEvent->y);
switch (*edge) {
case GDK_WINDOW_EDGE_SOUTH:
mAspectResizer = Some(GTK_ORIENTATION_VERTICAL);
break;
case GDK_WINDOW_EDGE_EAST:
mAspectResizer = Some(GTK_ORIENTATION_HORIZONTAL);
break;
default:
mAspectResizer.reset();
break;
}
ApplySizeConstraints();
}
if (!mAspectResizer) {
gdk_window_begin_resize_drag(GetToplevelGdkWindow(), *edge,
aEvent->button, aEvent->x_root,
aEvent->y_root, aEvent->time);
}
return;
}
gdouble pressure = 0;
gdk_event_get_axis((GdkEvent*)aEvent, GDK_AXIS_PRESSURE, &pressure);
mLastMotionPressure = pressure;
uint16_t domButton;
switch (aEvent->button) {
case 1:
domButton = MouseButton::ePrimary;
break;
case 2:
domButton = MouseButton::eMiddle;
break;
case 3:
domButton = MouseButton::eSecondary;
break;
// These are mapped to horizontal scroll
case 6:
case 7:
NS_WARNING("We're not supporting legacy horizontal scroll event");
return;
// Map buttons 8-9(10) to back/forward
case 8:
if (!Preferences::GetBool("mousebutton.4th.enabled", true)) {
return;
}
DispatchCommandEvent(nsGkAtoms::Back);
return;
case 9:
case 10:
if (!Preferences::GetBool("mousebutton.5th.enabled", true)) {
return;
}
DispatchCommandEvent(nsGkAtoms::Forward);
return;
default:
return;
}
gButtonState |= ButtonMaskFromGDKButton(aEvent->button);
WidgetMouseEvent event(true, eMouseDown, this, WidgetMouseEvent::eReal);
event.mButton = domButton;
InitButtonEvent(event, aEvent, refPoint);
event.mPressure = mLastMotionPressure;
InitPenEvent(event, (GdkEvent*)aEvent);
nsIWidget::ContentAndAPZEventStatus eventStatus = DispatchInputEvent(&event);
const bool defaultPrevented =
eventStatus.mContentStatus == nsEventStatus_eConsumeNoDefault;
if (!defaultPrevented && mDraggableRegion.Contains(refPoint)) {
if (domButton == MouseButton::ePrimary) {
mWindowShouldStartDragging = true;
} else if (domButton == MouseButton::eMiddle &&
StaticPrefs::widget_gtk_titlebar_action_middle_click_enabled()) {
DoTitlebarAction(nsXPLookAndFeel::TitlebarEvent::Middle_Click, aEvent);
}
}
// right menu click on linux should also pop up a context menu
if (!StaticPrefs::ui_context_menus_after_mouseup() &&
eventStatus.mApzStatus != nsEventStatus_eConsumeNoDefault) {
DispatchContextMenuEventFromMouseEvent(domButton, aEvent, refPoint);
}
}
void nsWindow::OnButtonReleaseEvent(GdkEventButton* aEvent) {
LOG("Button %u release\n", aEvent->button);
SetLastMousePressEvent(nullptr);
if (!mGdkWindow) {
return;
}
if (mAspectResizer) {
mAspectResizer = Nothing();
return;
}
if (mWindowShouldStartDragging) {
mWindowShouldStartDragging = false;
}
uint16_t domButton;
switch (aEvent->button) {
case 1:
domButton = MouseButton::ePrimary;
break;
case 2:
domButton = MouseButton::eMiddle;
break;
case 3:
domButton = MouseButton::eSecondary;
break;
default:
return;
}
gButtonState &= ~ButtonMaskFromGDKButton(aEvent->button);
const auto refPoint = GetRefPoint(this, aEvent);
WidgetMouseEvent event(true, eMouseUp, this, WidgetMouseEvent::eReal);
event.mButton = domButton;
InitButtonEvent(event, aEvent, refPoint);
gdouble pressure = 0;
gdk_event_get_axis((GdkEvent*)aEvent, GDK_AXIS_PRESSURE, &pressure);
event.mPressure = pressure ? (float)pressure : (float)mLastMotionPressure;
// The mRefPoint is manipulated in DispatchInputEvent, we're saving it
// to use it for the doubleclick position check.
const LayoutDeviceIntPoint pos = event.mRefPoint;
InitPenEvent(event, (GdkEvent*)aEvent);
nsIWidget::ContentAndAPZEventStatus eventStatus = DispatchInputEvent(&event);
const bool defaultPrevented =
eventStatus.mContentStatus == nsEventStatus_eConsumeNoDefault;
// Check if mouse position in titlebar and doubleclick happened to
// trigger defined action.
if (!defaultPrevented && mDrawInTitlebar &&
event.mButton == MouseButton::ePrimary && event.mClickCount == 2 &&
mDraggableRegion.Contains(pos)) {
DoTitlebarAction(nsXPLookAndFeel::TitlebarEvent::Double_Click, aEvent);
}
mLastMotionPressure = pressure;
// right menu click on linux should also pop up a context menu
if (StaticPrefs::ui_context_menus_after_mouseup() &&
eventStatus.mApzStatus != nsEventStatus_eConsumeNoDefault) {
DispatchContextMenuEventFromMouseEvent(domButton, aEvent, refPoint);
}
// Open window manager menu on PIP window to allow user
// to place it on top / all workspaces.
if (mAlwaysOnTop && aEvent->button == 3) {
TryToShowNativeWindowMenu(aEvent);
}
}
void nsWindow::OnContainerFocusInEvent(GdkEventFocus* aEvent) {
LOG("OnContainerFocusInEvent");
// Unset the urgency hint, if possible
GtkWidget* top_window = GetToplevelWidget();
if (top_window && (gtk_widget_get_visible(top_window))) {
SetUrgencyHint(top_window, false);
}
// Return if being called within SetFocus because the focus manager
// already knows that the window is active.
if (gBlockActivateEvent) {
LOG("activated notification is blocked");
return;
}
// If keyboard input will be accepted, the focus manager will call
// SetFocus to set the correct window.
gFocusWindow = nullptr;
DispatchActivateEvent();
if (!gFocusWindow) {
// We don't really have a window for dispatching key events, but
// setting a non-nullptr value here prevents OnButtonPressEvent() from
// dispatching an activation notification if the widget is already
// active.
gFocusWindow = this;
}
LOG("Events sent from focus in event");
}
void nsWindow::OnContainerFocusOutEvent(GdkEventFocus* aEvent) {
LOG("OnContainerFocusOutEvent");
if (IsTopLevelWindowType()) {
// Rollup menus when a window is focused out unless a drag is occurring.
// This check is because drags grab the keyboard and cause a focus out on
// versions of GTK before 2.18.
const bool shouldRollupMenus = [&] {
nsCOMPtr<nsIDragService> dragService =
do_GetService("@mozilla.org/widget/dragservice;1");
nsCOMPtr<nsIDragSession> dragSession =
dragService->GetCurrentSession(this);
if (!dragSession) {
return true;
}
// We also roll up when a drag is from a different application
nsCOMPtr<nsINode> sourceNode;
dragSession->GetSourceNode(getter_AddRefs(sourceNode));
return !sourceNode;
}();
if (shouldRollupMenus) {
RollupAllMenus();
}
if (RefPtr pm = nsXULPopupManager::GetInstance()) {
pm->RollupTooltips();
}
}
if (gFocusWindow) {
RefPtr<nsWindow> kungFuDeathGrip = gFocusWindow;
if (gFocusWindow->mIMContext) {
gFocusWindow->mIMContext->OnBlurWindow(gFocusWindow);
}
gFocusWindow = nullptr;
}
DispatchDeactivateEvent();
if (IsChromeWindowTitlebar()) {
// DispatchDeactivateEvent() ultimately results in a call to
// BrowsingContext::SetIsActiveBrowserWindow(), which resets
// the state. We call UpdateMozWindowActive() to keep it in
// sync with GDK_WINDOW_STATE_FOCUSED.
UpdateMozWindowActive();
}
LOG("Done with container focus out");
}
bool nsWindow::DispatchCommandEvent(nsAtom* aCommand) {
nsEventStatus status;
WidgetCommandEvent appCommandEvent(true, aCommand, this);
DispatchEvent(&appCommandEvent, status);
return TRUE;
}
bool nsWindow::DispatchContentCommandEvent(EventMessage aMsg) {
nsEventStatus status;
WidgetContentCommandEvent event(true, aMsg, this);
DispatchEvent(&event, status);
return TRUE;
}
WidgetEventTime nsWindow::GetWidgetEventTime(guint32 aEventTime) {
return WidgetEventTime(GetEventTimeStamp(aEventTime));
}
TimeStamp nsWindow::GetEventTimeStamp(guint32 aEventTime) {
if (MOZ_UNLIKELY(!mGdkWindow)) {
// nsWindow has been Destroy()ed.
return TimeStamp::Now();
}
if (aEventTime == 0) {
// Some X11 and GDK events may be received with a time of 0 to indicate
// that they are synthetic events. Some input method editors do this.
// In this case too, just return the current timestamp.
return TimeStamp::Now();
}
TimeStamp eventTimeStamp;
if (GdkIsWaylandDisplay()) {
// Wayland compositors use monotonic time to set timestamps.
int64_t timestampTime = g_get_monotonic_time() / 1000;
guint32 refTimeTruncated = guint32(timestampTime);
timestampTime -= refTimeTruncated - aEventTime;
int64_t tick =
BaseTimeDurationPlatformUtils::TicksFromMilliseconds(timestampTime);
eventTimeStamp = TimeStamp::FromSystemTime(tick);
} else {
#ifdef MOZ_X11
CurrentX11TimeGetter* getCurrentTime = GetCurrentTimeGetter();
MOZ_ASSERT(getCurrentTime,
"Null current time getter despite having a window");
eventTimeStamp =
TimeConverter().GetTimeStampFromSystemTime(aEventTime, *getCurrentTime);
#endif
}
return eventTimeStamp;
}
#ifdef MOZ_X11
mozilla::CurrentX11TimeGetter* nsWindow::GetCurrentTimeGetter() {
MOZ_ASSERT(mGdkWindow, "Expected mGdkWindow to be set");
if (MOZ_UNLIKELY(!mCurrentTimeGetter)) {
mCurrentTimeGetter = MakeUnique<CurrentX11TimeGetter>(mGdkWindow);
}
return mCurrentTimeGetter.get();
}
#endif
gboolean nsWindow::OnKeyPressEvent(GdkEventKey* aEvent) {
LOG("OnKeyPressEvent");
KeymapWrapper::HandleKeyPressEvent(this, aEvent);
return TRUE;
}
gboolean nsWindow::OnKeyReleaseEvent(GdkEventKey* aEvent) {
LOG("OnKeyReleaseEvent");
if (NS_WARN_IF(!KeymapWrapper::HandleKeyReleaseEvent(this, aEvent))) {
return FALSE;
}
return TRUE;
}
void nsWindow::OnScrollEvent(GdkEventScroll* aEvent) {
LOG("OnScrollEvent");
// check to see if we should rollup
if (CheckForRollup(aEvent->x_root, aEvent->y_root, true, false)) {
return;
}
// check for duplicate legacy scroll event, see GNOME bug 726878
if (aEvent->direction != GDK_SCROLL_SMOOTH &&
mLastScrollEventTime == aEvent->time) {
LOG("[%d] duplicate legacy scroll event %d\n", aEvent->time,
aEvent->direction);
return;
}
WidgetWheelEvent wheelEvent(true, eWheel, this);
wheelEvent.mDeltaMode = dom::WheelEvent_Binding::DOM_DELTA_LINE;
switch (aEvent->direction) {
case GDK_SCROLL_SMOOTH: {
// As of GTK 3.4, all directional scroll events are provided by
// the GDK_SCROLL_SMOOTH direction on XInput2 and Wayland devices.
mLastScrollEventTime = aEvent->time;
// Special handling for touchpads to support flings
// (also known as kinetic/inertial/momentum scrolling)
GdkDevice* device = gdk_event_get_source_device((GdkEvent*)aEvent);
GdkInputSource source = gdk_device_get_source(device);
if (source == GDK_SOURCE_TOUCHSCREEN || source == GDK_SOURCE_TOUCHPAD ||
mCurrentSynthesizedTouchpadPan.mTouchpadGesturePhase.isSome()) {
if (StaticPrefs::apz_gtk_pangesture_enabled() &&
gtk_check_version(3, 20, 0) == nullptr) {
static auto sGdkEventIsScrollStopEvent =
(gboolean(*)(const GdkEvent*))dlsym(
RTLD_DEFAULT, "gdk_event_is_scroll_stop_event");
LOG("[%d] pan smooth event dx=%f dy=%f inprogress=%d\n", aEvent->time,
aEvent->delta_x, aEvent->delta_y, mPanInProgress);
auto eventType = PanGestureInput::PANGESTURE_PAN;
if (sGdkEventIsScrollStopEvent((GdkEvent*)aEvent)) {
eventType = PanGestureInput::PANGESTURE_END;
mPanInProgress = false;
} else if (!mPanInProgress) {
eventType = PanGestureInput::PANGESTURE_START;
mPanInProgress = true;
} else if (mCurrentSynthesizedTouchpadPan.mTouchpadGesturePhase
.isSome()) {
switch (*mCurrentSynthesizedTouchpadPan.mTouchpadGesturePhase) {
case PHASE_BEGIN:
// we should never hit this because we'll hit the above case
// before this.
MOZ_ASSERT_UNREACHABLE();
eventType = PanGestureInput::PANGESTURE_START;
mPanInProgress = true;
break;
case PHASE_UPDATE:
// nothing to do here, eventtype should already be set
MOZ_ASSERT(mPanInProgress);
MOZ_ASSERT(eventType == PanGestureInput::PANGESTURE_PAN);
eventType = PanGestureInput::PANGESTURE_PAN;
break;
case PHASE_END:
MOZ_ASSERT(mPanInProgress);
eventType = PanGestureInput::PANGESTURE_END;
mPanInProgress = false;
break;
default:
MOZ_ASSERT_UNREACHABLE();
break;
}
}
mCurrentSynthesizedTouchpadPan.mTouchpadGesturePhase.reset();
const bool isPageMode =
#ifdef NIGHTLY_BUILD
StaticPrefs::apz_gtk_pangesture_delta_mode() == 1;
#else
StaticPrefs::apz_gtk_pangesture_delta_mode() != 2;
#endif
const double multiplier =
isPageMode
? StaticPrefs::apz_gtk_pangesture_page_delta_mode_multiplier()
: StaticPrefs::
apz_gtk_pangesture_pixel_delta_mode_multiplier() *
FractionalScaleFactor();
ScreenPoint deltas(float(aEvent->delta_x * multiplier),
float(aEvent->delta_y * multiplier));
LayoutDeviceIntPoint touchPoint = GetRefPoint(this, aEvent);
PanGestureInput panEvent(
eventType, GetEventTimeStamp(aEvent->time),
ScreenPoint(touchPoint.x, touchPoint.y), deltas,
KeymapWrapper::ComputeKeyModifiers(aEvent->state));
panEvent.mDeltaType = isPageMode ? PanGestureInput::PANDELTA_PAGE
: PanGestureInput::PANDELTA_PIXEL;
panEvent.mSimulateMomentum =
StaticPrefs::apz_gtk_kinetic_scroll_enabled();
DispatchPanGesture(panEvent);
if (mCurrentSynthesizedTouchpadPan.mSavedObserver != 0) {
mozilla::widget::AutoObserverNotifier::NotifySavedObserver(
mCurrentSynthesizedTouchpadPan.mSavedObserver,
"touchpadpanevent");
mCurrentSynthesizedTouchpadPan.mSavedObserver = 0;
}
return;
}
// Older GTK doesn't support stop events, so we can't support fling
wheelEvent.mScrollType = WidgetWheelEvent::SCROLL_ASYNCHRONOUSLY;
}
// TODO - use a more appropriate scrolling unit than lines.
// Multiply event deltas by 3 to emulate legacy behaviour.
wheelEvent.mDeltaX = aEvent->delta_x * 3;
wheelEvent.mDeltaY = aEvent->delta_y * 3;
wheelEvent.mWheelTicksX = aEvent->delta_x;
wheelEvent.mWheelTicksY = aEvent->delta_y;
wheelEvent.mIsNoLineOrPageDelta = true;
break;
}
case GDK_SCROLL_UP:
wheelEvent.mDeltaY = wheelEvent.mLineOrPageDeltaY = -3;
wheelEvent.mWheelTicksY = -1;
break;
case GDK_SCROLL_DOWN:
wheelEvent.mDeltaY = wheelEvent.mLineOrPageDeltaY = 3;
wheelEvent.mWheelTicksY = 1;
break;
case GDK_SCROLL_LEFT:
wheelEvent.mDeltaX = wheelEvent.mLineOrPageDeltaX = -1;
wheelEvent.mWheelTicksX = -1;
break;
case GDK_SCROLL_RIGHT:
wheelEvent.mDeltaX = wheelEvent.mLineOrPageDeltaX = 1;
wheelEvent.mWheelTicksX = 1;
break;
}
wheelEvent.mRefPoint = GetRefPoint(this, aEvent);
KeymapWrapper::InitInputEvent(wheelEvent, aEvent->state);
wheelEvent.AssignEventTime(GetWidgetEventTime(aEvent->time));
DispatchInputEvent(&wheelEvent);
}
void nsWindow::DispatchPanGesture(PanGestureInput& aPanInput) {
MOZ_ASSERT(NS_IsMainThread());
if (mSwipeTracker) {
// Give the swipe tracker a first pass at the event. If a new pan gesture
// has been started since the beginning of the swipe, the swipe tracker
// will know to ignore the event.
nsEventStatus status = mSwipeTracker->ProcessEvent(aPanInput);
if (status == nsEventStatus_eConsumeNoDefault) {
return;
}
}
APZEventResult result;
if (mAPZC) {
MOZ_ASSERT(APZThreadUtils::IsControllerThread());
result = mAPZC->InputBridge()->ReceiveInputEvent(aPanInput);
if (result.GetStatus() == nsEventStatus_eConsumeNoDefault) {
return;
}
}
WidgetWheelEvent event = aPanInput.ToWidgetEvent(this);
if (!mAPZC) {
if (MayStartSwipeForNonAPZ(aPanInput)) {
return;
}
} else {
event = MayStartSwipeForAPZ(aPanInput, result);
}
ProcessUntransformedAPZEvent(&event, result);
}
void nsWindow::OnVisibilityNotifyEvent(GdkVisibilityState aState) {
LOG("nsWindow::OnVisibilityNotifyEvent [%p] state 0x%x\n", this, aState);
auto state = aState == GDK_VISIBILITY_FULLY_OBSCURED
? OcclusionState::OCCLUDED
: OcclusionState::UNKNOWN;
NotifyOcclusionState(state);
}
void nsWindow::OnWindowStateEvent(GtkWidget* aWidget,
GdkEventWindowState* aEvent) {
LOG("nsWindow::OnWindowStateEvent for %p changed 0x%x new_window_state "
"0x%x\n",
aWidget, aEvent->changed_mask, aEvent->new_window_state);
if (IS_MOZ_CONTAINER(aWidget)) {
// This event is notifying the container widget of changes to the
// toplevel window. Just detect changes affecting whether windows are
// viewable.
//
// (A visibility notify event is sent to each window that becomes
// viewable when the toplevel is mapped, but we can't rely on that for
// setting mHasMappedToplevel because these toplevel window state
// events are asynchronous. The windows in the hierarchy now may not
// be the same windows as when the toplevel was mapped, so they may
// not get VisibilityNotify events.)
bool mapped = !(aEvent->new_window_state &
(GDK_WINDOW_STATE_ICONIFIED | GDK_WINDOW_STATE_WITHDRAWN));
SetHasMappedToplevel(mapped);
LOG("\tquick return because IS_MOZ_CONTAINER(aWidget) is true\n");
return;
}
// else the widget is a shell widget.
// The block below is a bit evil.
//
// When a window is resized before it is shown, gtk_window_resize() delays
// resizes until the window is shown. If gtk_window_state_event() sees a
// GDK_WINDOW_STATE_MAXIMIZED change [1] before the window is shown, then
// gtk_window_compute_configure_request_size() ignores the values from the
// resize [2]. See bug 1449166 for an example of how this could happen.
//
// [1] https://gitlab.gnome.org/GNOME/gtk/blob/3.22.30/gtk/gtkwindow.c#L7967
// [2] https://gitlab.gnome.org/GNOME/gtk/blob/3.22.30/gtk/gtkwindow.c#L9377
//
// In order to provide a sensible size for the window when the user exits
// maximized state, we hide the GDK_WINDOW_STATE_MAXIMIZED change from
// gtk_window_state_event() so as to trick GTK into using the values from
// gtk_window_resize() in its configure request.
//
// We instead notify gtk_window_state_event() of the maximized state change
// once the window is shown.
//
// See https://gitlab.gnome.org/GNOME/gtk/issues/1044
//
// This may be fixed in Gtk 3.24+ but it's still live and kicking
// (Bug 1791779).
if (!mIsShown) {
aEvent->changed_mask = static_cast<GdkWindowState>(
aEvent->changed_mask & ~GDK_WINDOW_STATE_MAXIMIZED);
} else if (aEvent->changed_mask & GDK_WINDOW_STATE_WITHDRAWN &&
aEvent->new_window_state & GDK_WINDOW_STATE_MAXIMIZED) {
aEvent->changed_mask = static_cast<GdkWindowState>(
aEvent->changed_mask | GDK_WINDOW_STATE_MAXIMIZED);
}
// This is a workaround for https://gitlab.gnome.org/GNOME/gtk/issues/1395
// Gtk+ controls window active appearance by window-state-event signal.
if (IsChromeWindowTitlebar() &&
(aEvent->changed_mask & GDK_WINDOW_STATE_FOCUSED)) {
// Emulate what Gtk+ does at gtk_window_state_event().
// We can't check GTK_STATE_FLAG_BACKDROP directly as it's set by Gtk+
// *after* this window-state-event handler.
mTitlebarBackdropState =
!(aEvent->new_window_state & GDK_WINDOW_STATE_FOCUSED);
// keep IsActiveBrowserWindow in sync with GDK_WINDOW_STATE_FOCUSED
UpdateMozWindowActive();
ForceTitlebarRedraw();
}
// We don't care about anything but changes in the maximized/icon/fullscreen
// states but we need a workaround for bug in Wayland:
// https://gitlab.gnome.org/GNOME/gtk/issues/67
// Under wayland the gtk_window_iconify implementation does NOT synthetize
// window_state_event where the GDK_WINDOW_STATE_ICONIFIED is set.
// During restore we won't get aEvent->changed_mask with
// the GDK_WINDOW_STATE_ICONIFIED so to detect that change we use the stored
// mSizeMode and obtaining a focus.
bool waylandWasIconified =
(GdkIsWaylandDisplay() &&
aEvent->changed_mask & GDK_WINDOW_STATE_FOCUSED &&
aEvent->new_window_state & GDK_WINDOW_STATE_FOCUSED &&
mSizeMode == nsSizeMode_Minimized);
if (!waylandWasIconified &&
(aEvent->changed_mask &
(GDK_WINDOW_STATE_ICONIFIED | GDK_WINDOW_STATE_MAXIMIZED |
GDK_WINDOW_STATE_TILED | GDK_WINDOW_STATE_FULLSCREEN)) == 0) {
LOG("\tearly return because no interesting bits changed\n");
return;
}
auto oldSizeMode = mSizeMode;
if (aEvent->new_window_state & GDK_WINDOW_STATE_ICONIFIED) {
LOG("\tIconified\n");
mSizeMode = nsSizeMode_Minimized;
#ifdef ACCESSIBILITY
DispatchMinimizeEventAccessible();
#endif // ACCESSIBILITY
} else if (aEvent->new_window_state & GDK_WINDOW_STATE_FULLSCREEN) {
LOG("\tFullscreen\n");
mSizeMode = nsSizeMode_Fullscreen;
} else if (aEvent->new_window_state & GDK_WINDOW_STATE_MAXIMIZED) {
LOG("\tMaximized\n");
mSizeMode = nsSizeMode_Maximized;
#ifdef ACCESSIBILITY
DispatchMaximizeEventAccessible();
#endif // ACCESSIBILITY
} else {
LOG("\tNormal\n");
mSizeMode = nsSizeMode_Normal;
#ifdef ACCESSIBILITY
DispatchRestoreEventAccessible();
#endif // ACCESSIBILITY
}
mIsTiled = aEvent->new_window_state & GDK_WINDOW_STATE_TILED;
LOG("\tTiled: %d\n", int(mIsTiled));
if (mWidgetListener && mSizeMode != oldSizeMode) {
mWidgetListener->SizeModeChanged(mSizeMode);
}
if (mDrawInTitlebar && mTransparencyBitmapForTitlebar) {
if (mSizeMode == nsSizeMode_Normal && !mIsTiled) {
UpdateTitlebarTransparencyBitmap();
} else {
ClearTransparencyBitmap();
}
}
}
void nsWindow::OnDPIChanged() {
// Update menu's font size etc.
// This affects style / layout because it affects system font sizes.
if (mWidgetListener) {
if (PresShell* presShell = mWidgetListener->GetPresShell()) {
presShell->BackingScaleFactorChanged();
}
}
NotifyAPZOfDPIChange();
}
void nsWindow::OnCheckResize() { mPendingConfigures++; }
void nsWindow::OnCompositedChanged() {
// Update CSD after the change in alpha visibility. This only affects
// system metrics, not other theme shenanigans.
NotifyThemeChanged(ThemeChangeKind::MediaQueriesOnly);
mCompositedScreen = gdk_screen_is_composited(gdk_screen_get_default());
}
void nsWindow::OnScaleChanged(bool aNotify) {
if (!IsTopLevelWindowType()) {
return;
}
if (!mGdkWindow) {
return; // We'll get there again when we configure the window.
}
gint newCeiled = gdk_window_get_scale_factor(mGdkWindow);
double newFractional = [&] {
#ifdef MOZ_WAYLAND
if (GdkIsWaylandDisplay()) {
return moz_container_wayland_get_fractional_scale(mContainer);
}
#endif
return 0.0;
}();
if (mCeiledScaleFactor == newCeiled &&
mFractionalScaleFactor == newFractional) {
return;
}
NotifyAPZOfDPIChange();
LOG("OnScaleChanged %d, %f -> %d, %f Notify %d\n", int(mCeiledScaleFactor),
mFractionalScaleFactor, newCeiled, newFractional, aNotify);
mCeiledScaleFactor = newCeiled;
mFractionalScaleFactor = newFractional;
if (!aNotify) {
return;
}
// We pause compositor to avoid rendering of obsoleted remote content which
// produces flickering.
// Re-enable compositor again when remote content is updated or timeout
// happens.
PauseCompositorFlickering();
GtkAllocation allocation;
gtk_widget_get_allocation(GTK_WIDGET(mContainer), &allocation);
LayoutDeviceIntSize size = GdkRectToDevicePixels(allocation).Size();
mBounds.SizeTo(size);
// Check mBounds size
if (mCompositorSession &&
!wr::WindowSizeSanityCheck(mBounds.width, mBounds.height)) {
gfxCriticalNoteOnce << "Invalid mBounds in OnScaleChanged " << mBounds;
}
if (mWidgetListener) {
if (PresShell* presShell = mWidgetListener->GetPresShell()) {
presShell->BackingScaleFactorChanged();
}
}
DispatchResized();
if (mCompositorWidgetDelegate) {
mCompositorWidgetDelegate->NotifyClientSizeChanged(GetClientSize());
}
if (mCursor.IsCustom()) {
mUpdateCursor = true;
SetCursor(Cursor{mCursor});
}
}
void nsWindow::DispatchDragEvent(EventMessage aMsg,
const LayoutDeviceIntPoint& aRefPoint,
guint aTime) {
LOGDRAG("nsWindow::DispatchDragEvent");
WidgetDragEvent event(true, aMsg, this);
InitDragEvent(event);
event.mRefPoint = aRefPoint;
event.AssignEventTime(GetWidgetEventTime(aTime));
DispatchInputEvent(&event);
}
void nsWindow::OnDragDataReceivedEvent(GtkWidget* aWidget,
GdkDragContext* aDragContext, gint aX,
gint aY,
GtkSelectionData* aSelectionData,
guint aInfo, guint aTime,
gpointer aData) {
LOGDRAG("nsWindow::OnDragDataReceived");
RefPtr<nsDragService> dragService = nsDragService::GetInstance();
nsDragSession* dragSession =
static_cast<nsDragSession*>(dragService->GetCurrentSession(this));
if (dragSession) {
nsDragSession::AutoEventLoop loop(dragSession);
dragSession->TargetDataReceived(aWidget, aDragContext, aX, aY,
aSelectionData, aInfo, aTime);
}
}
nsWindow* nsWindow::GetTransientForWindowIfPopup() {
if (mWindowType != WindowType::Popup) {
return nullptr;
}
GtkWindow* toplevel = gtk_window_get_transient_for(GTK_WINDOW(mShell));
if (toplevel) {
return get_window_for_gtk_widget(GTK_WIDGET(toplevel));
}
return nullptr;
}
bool nsWindow::IsHandlingTouchSequence(GdkEventSequence* aSequence) {
return mHandleTouchEvent && mTouches.Contains(aSequence);
}
gboolean nsWindow::OnTouchpadPinchEvent(GdkEventTouchpadPinch* aEvent) {
if (!StaticPrefs::apz_gtk_touchpad_pinch_enabled()) {
return TRUE;
}
// Do not respond to pinch gestures involving more than two fingers
// unless specifically preffed on. These are sometimes hooked up to other
// actions at the desktop environment level and having the browser also
// pinch can be undesirable.
if (aEvent->n_fingers > 2 &&
!StaticPrefs::apz_gtk_touchpad_pinch_three_fingers_enabled()) {
return FALSE;
}
auto pinchGestureType = PinchGestureInput::PINCHGESTURE_SCALE;
ScreenCoord currentSpan;
ScreenCoord previousSpan;
switch (aEvent->phase) {
case GDK_TOUCHPAD_GESTURE_PHASE_BEGIN:
pinchGestureType = PinchGestureInput::PINCHGESTURE_START;
currentSpan = aEvent->scale;
mCurrentTouchpadFocus = ViewAs<ScreenPixel>(
GetRefPoint(this, aEvent),
PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent);
// Assign PreviousSpan --> 0.999 to make mDeltaY field of the
// WidgetWheelEvent that this PinchGestureInput event will be converted
// to not equal Zero as our discussion because we observed that the
// scale of the PHASE_BEGIN event is 1.
previousSpan = 0.999;
break;
case GDK_TOUCHPAD_GESTURE_PHASE_UPDATE:
pinchGestureType = PinchGestureInput::PINCHGESTURE_SCALE;
mCurrentTouchpadFocus += ScreenPoint(aEvent->dx, aEvent->dy);
if (aEvent->scale == mLastPinchEventSpan) {
return FALSE;
}
currentSpan = aEvent->scale;
previousSpan = mLastPinchEventSpan;
break;
case GDK_TOUCHPAD_GESTURE_PHASE_END:
pinchGestureType = PinchGestureInput::PINCHGESTURE_END;
currentSpan = aEvent->scale;
previousSpan = mLastPinchEventSpan;
break;
default:
return FALSE;
}
PinchGestureInput event(
pinchGestureType, PinchGestureInput::TRACKPAD,
GetEventTimeStamp(aEvent->time), ExternalPoint(0, 0),
mCurrentTouchpadFocus,
100.0 * ((aEvent->phase == GDK_TOUCHPAD_GESTURE_PHASE_END)
? ScreenCoord(1.f)
: currentSpan),
100.0 * ((aEvent->phase == GDK_TOUCHPAD_GESTURE_PHASE_END)
? ScreenCoord(1.f)
: previousSpan),
KeymapWrapper::ComputeKeyModifiers(aEvent->state));
if (!event.SetLineOrPageDeltaY(this)) {
return FALSE;
}
mLastPinchEventSpan = aEvent->scale;
DispatchPinchGestureInput(event);
return TRUE;
}
gboolean nsWindow::OnTouchEvent(GdkEventTouch* aEvent) {
LOG("OnTouchEvent: x=%f y=%f type=%d\n", aEvent->x, aEvent->y, aEvent->type);
if (!mHandleTouchEvent) {
// If a popup window was spawned (e.g. as the result of a long-press)
// and touch events got diverted to that window within a touch sequence,
// ensure the touch event gets sent to the original window instead. We
// keep the checks here very conservative so that we only redirect
// events in this specific scenario.
nsWindow* targetWindow = GetTransientForWindowIfPopup();
if (targetWindow &&
targetWindow->IsHandlingTouchSequence(aEvent->sequence)) {
return targetWindow->OnTouchEvent(aEvent);
}
return FALSE;
}
EventMessage msg;
switch (aEvent->type) {
case GDK_TOUCH_BEGIN:
// check to see if we should rollup
if (CheckForRollup(aEvent->x_root, aEvent->y_root, false, false)) {
return FALSE;
}
msg = eTouchStart;
break;
case GDK_TOUCH_UPDATE:
msg = eTouchMove;
// Start dragging when motion events happens in the dragging area
if (mWindowShouldStartDragging) {
mWindowShouldStartDragging = false;
if (mGdkWindow) {
GdkWindow* gdk_window = gdk_window_get_toplevel(mGdkWindow);
MOZ_ASSERT(gdk_window,
"gdk_window_get_toplevel should not return null");
LOG(" start window dragging window\n");
gdk_window_begin_move_drag(gdk_window, 1, aEvent->x_root,
aEvent->y_root, aEvent->time);
// Cancel the event sequence. gdk will steal all subsequent events
// (including TOUCH_END).
msg = eTouchCancel;
}
}
break;
case GDK_TOUCH_END:
msg = eTouchEnd;
if (mWindowShouldStartDragging) {
LOG(" end of window dragging window\n");
mWindowShouldStartDragging = false;
}
break;
case GDK_TOUCH_CANCEL:
msg = eTouchCancel;
break;
default:
return FALSE;
}
const LayoutDeviceIntPoint touchPoint = GetRefPoint(this, aEvent);
int32_t id;
RefPtr<dom::Touch> touch;
if (mTouches.Remove(aEvent->sequence, getter_AddRefs(touch))) {
id = touch->mIdentifier;
} else {
id = ++gLastTouchID & 0x7FFFFFFF;
}
touch =
new dom::Touch(id, touchPoint, LayoutDeviceIntPoint(1, 1), 0.0f, 0.0f);
WidgetTouchEvent event(true, msg, this);
KeymapWrapper::InitInputEvent(event, aEvent->state);
if (msg == eTouchStart || msg == eTouchMove) {
mTouches.InsertOrUpdate(aEvent->sequence, std::move(touch));
// add all touch points to event object
for (const auto& data : mTouches.Values()) {
event.mTouches.AppendElement(new dom::Touch(*data));
}
} else if (msg == eTouchEnd || msg == eTouchCancel) {
*event.mTouches.AppendElement() = std::move(touch);
}
nsIWidget::ContentAndAPZEventStatus eventStatus = DispatchInputEvent(&event);
// There's a chance that we are in drag area and the event is not consumed
// by something on it.
if (msg == eTouchStart && mDraggableRegion.Contains(touchPoint) &&
eventStatus.mApzStatus != nsEventStatus_eConsumeNoDefault) {
mWindowShouldStartDragging = true;
}
return TRUE;
}
// Return true if toplevel window is transparent.
// It's transparent when we're running on composited screens
// and we can draw main window without system titlebar.
bool nsWindow::IsToplevelWindowTransparent() {
static bool transparencyConfigured = false;
if (!transparencyConfigured) {
if (gdk_screen_is_composited(gdk_screen_get_default())) {
// Some Gtk+ themes use non-rectangular toplevel windows. To fully
// support such themes we need to make toplevel window transparent
// with ARGB visual.
// It may cause performanance issue so make it configurable
// and enable it by default for selected window managers.
if (Preferences::HasUserValue("mozilla.widget.use-argb-visuals")) {
// argb visual is explicitly required so use it
sTransparentMainWindow =
Preferences::GetBool("mozilla.widget.use-argb-visuals");
} else {
// Enable transparent toplevel window if we can draw main window
// without system titlebar as Gtk+ themes use titlebar round corners.
sTransparentMainWindow =
GetSystemGtkWindowDecoration() != GTK_DECORATION_NONE;
}
}
transparencyConfigured = true;
}
return sTransparentMainWindow;
}
#ifdef MOZ_X11
// Configure GL visual on X11.
bool nsWindow::ConfigureX11GLVisual() {
auto* screen = gtk_widget_get_screen(mShell);
int visualId = 0;
bool haveVisual = false;
if (gfxVars::UseEGL()) {
haveVisual = GLContextEGL::FindVisual(&visualId);
}
// We are on GLX or use it as a fallback on Mesa, see
// https://gitlab.freedesktop.org/mesa/mesa/-/issues/149
if (!haveVisual) {
auto* display = GDK_DISPLAY_XDISPLAY(gtk_widget_get_display(mShell));
int screenNumber = GDK_SCREEN_XNUMBER(screen);
haveVisual = GLContextGLX::FindVisual(display, screenNumber, &visualId);
}
GdkVisual* gdkVisual = nullptr;
if (haveVisual) {
// If we're using CSD, rendering will go through mContainer, but
// it will inherit this visual as it is a child of mShell.
gdkVisual = gdk_x11_screen_lookup_visual(screen, visualId);
}
if (!gdkVisual) {
NS_WARNING("We're missing X11 Visual!");
// We try to use a fallback alpha visual
GdkScreen* screen = gtk_widget_get_screen(mShell);
gdkVisual = gdk_screen_get_rgba_visual(screen);
}
if (gdkVisual) {
gtk_widget_set_visual(mShell, gdkVisual);
mHasAlphaVisual = true;
return true;
}
return false;
}
#endif
nsAutoCString nsWindow::GetFrameTag() const {
if (nsIFrame* frame = GetFrame()) {
#ifdef DEBUG_FRAME_DUMP
return frame->ListTag();
#else
nsAutoCString buf;
buf.AppendPrintf("Frame(%p)", frame);
if (nsIContent* content = frame->GetContent()) {
buf.Append(' ');
AppendUTF16toUTF8(content->NodeName(), buf);
}
return buf;
#endif
}
return nsAutoCString("(no frame)");
}
nsCString nsWindow::GetPopupTypeName() {
switch (mPopupType) {
case PopupType::Menu:
return nsCString("Menu");
case PopupType::Tooltip:
return nsCString("Tooltip");
case PopupType::Panel:
return nsCString("Panel/Utility");
default:
return nsCString("Unknown");
}
}
// Disables all rendering of GtkWidget from Gtk side.
// We do our best to persuade Gtk/Gdk to ignore all painting
// to the widget.
static void GtkWidgetDisableUpdates(GtkWidget* aWidget) {
// Clear exposure mask - it disabled synthesized events.
GdkWindow* window = gtk_widget_get_window(aWidget);
if (!window) {
return;
}
gdk_window_set_events(window, (GdkEventMask)(gdk_window_get_events(window) &
(~GDK_EXPOSURE_MASK)));
// Remove before/after paint handles from frame clock.
// It disables widget content updates.
GdkFrameClock* frame_clock = gdk_window_get_frame_clock(window);
g_signal_handlers_disconnect_by_data(frame_clock, window);
}
Window nsWindow::GetX11Window() {
#ifdef MOZ_X11
if (GdkIsX11Display()) {
return mGdkWindow ? gdk_x11_window_get_xid(mGdkWindow) : X11None;
}
#endif
return (Window) nullptr;
}
void nsWindow::EnsureGdkWindow() {
MOZ_DIAGNOSTIC_ASSERT(mIsMapped);
if (!mGdkWindow) {
mGdkWindow = gtk_widget_get_window(GTK_WIDGET(mContainer));
g_object_set_data(G_OBJECT(mGdkWindow), "nsWindow", this);
}
}
bool nsWindow::GetShapedState() {
return mIsTransparent && !mHasAlphaVisual && !mTransparencyBitmapForTitlebar;
}
void nsWindow::ConfigureCompositor() {
MOZ_DIAGNOSTIC_ASSERT(mIsMapped);
MOZ_DIAGNOSTIC_ASSERT(mCompositorState == COMPOSITOR_ENABLED);
LOG("nsWindow::ConfigureCompositor()");
auto startCompositing = [self = RefPtr{this}, this]() -> void {
LOG(" moz_container_wayland_add_or_fire_initial_draw_callback "
"ConfigureCompositor");
// too late
if (mIsDestroyed || !mIsMapped) {
LOG(" quit, mIsDestroyed = %d mIsMapped = %d", !!mIsDestroyed,
!!mIsMapped);
return;
}
// Compositor will be resumed later by ResumeCompositorFlickering().
if (mCompositorState == COMPOSITOR_PAUSED_FLICKERING) {
LOG(" quit, will be resumed by ResumeCompositorFlickering.");
return;
}
// Compositor will be resumed at nsWindow::SetCompositorWidgetDelegate().
if (!mCompositorWidgetDelegate) {
LOG(" quit, missing mCompositorWidgetDelegate");
return;
}
ResumeCompositorImpl();
};
if (GdkIsWaylandDisplay()) {
#ifdef MOZ_WAYLAND
moz_container_wayland_add_or_fire_initial_draw_callback(mContainer,
startCompositing);
#endif
} else {
startCompositing();
}
}
nsresult nsWindow::Create(nsIWidget* aParent, nsNativeWidget aNativeParent,
const LayoutDeviceIntRect& aRect,
widget::InitData* aInitData) {
LOG("nsWindow::Create\n");
// only set the base parent if we're going to be a dialog or a
// toplevel
nsIWidget* baseParent =
aInitData && (aInitData->mWindowType == WindowType::Dialog ||
aInitData->mWindowType == WindowType::TopLevel ||
aInitData->mWindowType == WindowType::Invisible)
? nullptr
: aParent;
#ifdef ACCESSIBILITY
// Send a DBus message to check whether a11y is enabled
a11y::PreInit();
#endif
#ifdef MOZ_WAYLAND
// Ensure that KeymapWrapper is created on Wayland as we need it for
// keyboard focus tracking.
if (GdkIsWaylandDisplay()) {
KeymapWrapper::EnsureInstance();
}
#endif
// Ensure that the toolkit is created.
nsGTKToolkit::GetToolkit();
// initialize all the common bits of this class
BaseCreate(baseParent, aInitData);
// and do our common creation
mParent = aParent;
// save our bounds
mBounds = aRect;
LOG(" mBounds: x:%d y:%d w:%d h:%d\n", mBounds.x, mBounds.y, mBounds.width,
mBounds.height);
ConstrainSize(&mBounds.width, &mBounds.height);
mLastSizeRequest = mBounds.Size();
bool popupNeedsAlphaVisual = mWindowType == WindowType::Popup &&
(aInitData && aInitData->mTransparencyMode ==
TransparencyMode::Transparent);
// Figure out our parent window - only used for WindowType::Child
nsWindow* parentnsWindow = nullptr;
if (aParent) {
parentnsWindow = static_cast<nsWindow*>(aParent);
} else if (aNativeParent && GDK_IS_WINDOW(aNativeParent)) {
parentnsWindow = get_window_for_gdk_window(GDK_WINDOW(aNativeParent));
if (!parentnsWindow) {
return NS_ERROR_FAILURE;
}
}
if (mWindowType == WindowType::Child) {
// We don't support WindowType::Child directly but emulate it by popup
// windows.
mWindowType = WindowType::Popup;
if (!parentnsWindow) {
if (aNativeParent && GTK_IS_CONTAINER(aNativeParent)) {
parentnsWindow = get_window_for_gtk_widget(GTK_WIDGET(aNativeParent));
}
}
mIsChildWindow = true;
LOG(" child widget, switch to popup. parent nsWindow %p", parentnsWindow);
}
MOZ_ASSERT_IF(mWindowType == WindowType::Popup, parentnsWindow);
if (mWindowType != WindowType::Dialog && mWindowType != WindowType::Popup &&
mWindowType != WindowType::TopLevel &&
mWindowType != WindowType::Invisible) {
MOZ_ASSERT_UNREACHABLE("Unexpected eWindowType");
return NS_ERROR_FAILURE;
}
mAlwaysOnTop = aInitData && aInitData->mAlwaysOnTop;
// mNoAutoHide seems to be always false here.
// The mNoAutoHide state is set later on nsMenuPopupFrame level
// and can be changed so we use WaylandPopupIsPermanent() to get
// recent popup config (Bug 1728952).
mNoAutoHide = aInitData && aInitData->mNoAutoHide;
mIsAlert = aInitData && aInitData->mIsAlert;
// Popups that are not noautohide are only temporary. The are used
// for menus and the like and disappear when another window is used.
// For most popups, use the standard GtkWindowType GTK_WINDOW_POPUP,
// which will use a Window with the override-redirect attribute
// (for temporary windows).
// For long-lived windows, their stacking order is managed by the
// window manager, as indicated by GTK_WINDOW_TOPLEVEL.
// For Wayland we have to always use GTK_WINDOW_POPUP to control
// popup window position.
GtkWindowType type = GTK_WINDOW_TOPLEVEL;
if (mWindowType == WindowType::Popup) {
MOZ_ASSERT(aInitData);
type = GTK_WINDOW_POPUP;
if (GdkIsX11Display() && mNoAutoHide) {
type = GTK_WINDOW_TOPLEVEL;
}
}
mShell = gtk_window_new(type);
// Ensure gfxPlatform is initialized, since that is what initializes
// gfxVars, used below.
Unused << gfxPlatform::GetPlatform();
if (IsTopLevelWindowType()) {
mGtkWindowDecoration = GetSystemGtkWindowDecoration();
// Inherit initial scale from our parent, or use the default monitor scale
// otherwise.
mCeiledScaleFactor = parentnsWindow
? int32_t(parentnsWindow->mCeiledScaleFactor)
: ScreenHelperGTK::GetGTKMonitorScaleFactor();
}
// Don't use transparency for PictureInPicture windows.
bool toplevelNeedsAlphaVisual = false;
if (mWindowType == WindowType::TopLevel && !mIsPIPWindow) {
toplevelNeedsAlphaVisual = IsToplevelWindowTransparent();
}
bool isGLVisualSet = false;
mIsAccelerated = ComputeShouldAccelerate();
#ifdef MOZ_X11
if (GdkIsX11Display() && mIsAccelerated) {
isGLVisualSet = ConfigureX11GLVisual();
}
#endif
if (!isGLVisualSet && (popupNeedsAlphaVisual || toplevelNeedsAlphaVisual)) {
// We're running on composited screen so we can use alpha visual
// for both toplevel and popups.
if (mCompositedScreen) {
GdkVisual* visual =
gdk_screen_get_rgba_visual(gtk_widget_get_screen(mShell));
if (visual) {
gtk_widget_set_visual(mShell, visual);
mHasAlphaVisual = true;
}
}
}
// Use X shape mask to draw round corners of Firefox titlebar.
// We don't use shape masks any more as we switched to ARGB visual
// by default and non-compositing screens use solid-csd decorations
// without round corners.
// Leave the shape mask code here as it can be used to draw round
// corners on EGL (https://gitlab.freedesktop.org/mesa/mesa/-/issues/149)
// or when custom titlebar theme is used.
mTransparencyBitmapForTitlebar = TitlebarUseShapeMask();
// We have a toplevel window with transparency.
// Calls to UpdateTitlebarTransparencyBitmap() from OnExposeEvent()
// occur before SetTransparencyMode() receives TransparencyMode::Transparent
// from layout, so set mIsTransparent here.
if (mWindowType == WindowType::TopLevel &&
(mHasAlphaVisual || mTransparencyBitmapForTitlebar)) {
mIsTransparent = true;
}
// We only move a general managed toplevel window if someone has
// actually placed the window somewhere. If no placement has taken
// place, we just let the window manager Do The Right Thing.
if (AreBoundsSane()) {
GdkRectangle size = DevicePixelsToGdkSizeRoundUp(mBounds.Size());
LOG("nsWindow::Create() Initial resize to %d x %d\n", size.width,
size.height);
gtk_window_resize(GTK_WINDOW(mShell), size.width, size.height);
}
if (mIsPIPWindow) {
LOG(" Is PIP window\n");
gtk_window_set_type_hint(GTK_WINDOW(mShell), GDK_WINDOW_TYPE_HINT_UTILITY);
} else if (mIsAlert) {
LOG(" Is alert window\n");
gtk_window_set_type_hint(GTK_WINDOW(mShell),
GDK_WINDOW_TYPE_HINT_NOTIFICATION);
gtk_window_set_skip_taskbar_hint(GTK_WINDOW(mShell), TRUE);
} else if (mWindowType == WindowType::Dialog) {
mGtkWindowRoleName = "Dialog";
SetDefaultIcon();
gtk_window_set_type_hint(GTK_WINDOW(mShell), GDK_WINDOW_TYPE_HINT_DIALOG);
LOG("nsWindow::Create(): dialog");
if (parentnsWindow) {
GtkWindowSetTransientFor(GTK_WINDOW(mShell),
GTK_WINDOW(parentnsWindow->GetGtkWidget()));
LOG(" set parent window [%p]\n", parentnsWindow);
}
} else if (mWindowType == WindowType::Popup) {
MOZ_ASSERT(aInitData);
mGtkWindowRoleName = "Popup";
LOG("nsWindow::Create() Popup");
if (mNoAutoHide) {
// ... but the window manager does not decorate this window,
// nor provide a separate taskbar icon.
if (mBorderStyle == BorderStyle::Default) {
gtk_window_set_decorated(GTK_WINDOW(mShell), FALSE);
} else {
bool decorate = bool(mBorderStyle & BorderStyle::Title);
gtk_window_set_decorated(GTK_WINDOW(mShell), decorate);
if (decorate) {
gtk_window_set_deletable(GTK_WINDOW(mShell),
bool(mBorderStyle & BorderStyle::Close));
}
}
gtk_window_set_skip_taskbar_hint(GTK_WINDOW(mShell), TRUE);
// Element focus is managed by the parent window so the
// WM_HINTS input field is set to False to tell the window
// manager not to set input focus to this window ...
gtk_window_set_accept_focus(GTK_WINDOW(mShell), FALSE);
#ifdef MOZ_X11
// ... but when the window manager offers focus through
// WM_TAKE_FOCUS, focus is requested on the parent window.
if (GdkIsX11Display()) {
gtk_widget_realize(mShell);
gdk_window_add_filter(GetToplevelGdkWindow(), popup_take_focus_filter,
nullptr);
}
#endif
}
if (aInitData->mIsDragPopup) {
gtk_window_set_type_hint(GTK_WINDOW(mShell), GDK_WINDOW_TYPE_HINT_DND);
mIsDragPopup = true;
LOG("nsWindow::Create() Drag popup\n");
} else if (GdkIsX11Display()) {
// Set the window hints on X11 only. Wayland popups are configured
// at WaylandPopupConfigure().
GdkWindowTypeHint gtkTypeHint;
switch (mPopupType) {
case PopupType::Menu:
gtkTypeHint = GDK_WINDOW_TYPE_HINT_POPUP_MENU;
break;
case PopupType::Tooltip:
gtkTypeHint = GDK_WINDOW_TYPE_HINT_TOOLTIP;
break;
default:
gtkTypeHint = GDK_WINDOW_TYPE_HINT_UTILITY;
break;
}
gtk_window_set_type_hint(GTK_WINDOW(mShell), gtkTypeHint);
LOG("nsWindow::Create() popup type %s", GetPopupTypeName().get());
}
if (parentnsWindow) {
LOG(" set parent window [%p] %s", parentnsWindow,
parentnsWindow->mGtkWindowRoleName.get());
GtkWindow* parentWidget = GTK_WINDOW(parentnsWindow->GetGtkWidget());
GtkWindowSetTransientFor(GTK_WINDOW(mShell), parentWidget);
// If popup parent is modal, we need to make popup modal too.
if (mPopupType != PopupType::Tooltip &&
gtk_window_get_modal(parentWidget)) {
gtk_window_set_modal(GTK_WINDOW(mShell), true);
}
}
// We need realized mShell at NativeMoveResize().
gtk_widget_realize(mShell);
// With popup windows, we want to set their position.
// Place them immediately on X11 and save initial popup position
// on Wayland as we place Wayland popup on show.
if (GdkIsX11Display()) {
NativeMoveResize(/* move */ true, /* resize */ false);
} else if (AreBoundsSane()) {
GdkRectangle rect = DevicePixelsToGdkRectRoundOut(mBounds);
mPopupPosition = {rect.x, rect.y};
}
} else { // must be WindowType::TopLevel
mGtkWindowRoleName = "Toplevel";
SetDefaultIcon();
LOG("nsWindow::Create() Toplevel\n");
// each toplevel window gets its own window group
GtkWindowGroup* group = gtk_window_group_new();
gtk_window_group_add_window(group, GTK_WINDOW(mShell));
g_object_unref(group);
}
if (mAlwaysOnTop) {
gtk_window_set_keep_above(GTK_WINDOW(mShell), TRUE);
}
// It is important that this happens before the realize() call below, so that
// we don't get bogus CSD margins on Wayland, see bug 1794577.
mUndecorated = IsAlwaysUndecoratedWindow();
if (mUndecorated) {
LOG(" Is undecorated Window\n");
gtk_window_set_titlebar(GTK_WINDOW(mShell), gtk_fixed_new());
gtk_window_set_decorated(GTK_WINDOW(mShell), false);
}
// Create a container to hold child windows and child GtkWidgets.
GtkWidget* container = moz_container_new();
mContainer = MOZ_CONTAINER(container);
// Prevent GtkWindow from painting a background to avoid flickering.
gtk_widget_set_app_paintable(
GTK_WIDGET(mContainer),
StaticPrefs::widget_transparent_windows_AtStartup());
gtk_widget_add_events(GTK_WIDGET(mContainer), kEvents);
gtk_widget_add_events(mShell, GDK_PROPERTY_CHANGE_MASK);
gtk_widget_set_app_paintable(
mShell, StaticPrefs::widget_transparent_windows_AtStartup());
if (mTransparencyBitmapForTitlebar) {
moz_container_force_default_visual(mContainer);
}
// If we draw to mContainer window then configure it now because
// gtk_container_add() realizes the child widget.
gtk_widget_set_has_window(container, true);
gtk_container_add(GTK_CONTAINER(mShell), container);
// alwaysontop windows are generally used for peripheral indicators,
// so we don't focus them by default.
if (mAlwaysOnTop) {
gtk_window_set_focus_on_map(GTK_WINDOW(mShell), FALSE);
}
gtk_widget_realize(container);
// make sure this is the focus widget in the container
gtk_widget_show(container);
if (!mAlwaysOnTop) {
gtk_widget_grab_focus(container);
}
#ifdef MOZ_WAYLAND
if (mIsDragPopup && GdkIsWaylandDisplay()) {
LOG(" set commit to parent");
moz_container_wayland_set_commit_to_parent(mContainer);
}
#endif
if (mWindowType == WindowType::TopLevel && gKioskMode) {
if (gKioskMonitor != -1) {
mKioskMonitor = Some(gKioskMonitor);
LOG(" set kiosk mode monitor %d", mKioskMonitor.value());
} else {
LOG(" set kiosk mode");
}
// Kiosk mode always use fullscreen.
MakeFullScreen(/* aFullScreen */ true);
}
if (mWindowType == WindowType::Popup) {
MOZ_ASSERT(aInitData);
// gdk does not automatically set the cursor for "temporary"
// windows, which are what gtk uses for popups.
// force SetCursor to actually set the cursor, even though our internal
// state indicates that we already have the standard cursor.
mUpdateCursor = true;
SetCursor(Cursor{eCursor_standard});
}
if (mIsChildWindow && parentnsWindow) {
GdkWindow* window = GetToplevelGdkWindow();
GdkWindow* parentWindow = parentnsWindow->GetToplevelGdkWindow();
LOG(" child GdkWindow %p set parent GdkWindow %p", window, parentWindow);
gdk_window_reparent(window, parentWindow,
DevicePixelsToGdkCoordRoundDown(mBounds.x),
DevicePixelsToGdkCoordRoundDown(mBounds.y));
}
// Also label mShell toplevel window,
// property_notify_event_cb callback also needs to find its way home
g_object_set_data(G_OBJECT(GetToplevelGdkWindow()), "nsWindow", this);
g_object_set_data(G_OBJECT(mContainer), "nsWindow", this);
g_object_set_data(G_OBJECT(mShell), "nsWindow", this);
// attach listeners for events
g_signal_connect(mShell, "configure_event", G_CALLBACK(configure_event_cb),
nullptr);
g_signal_connect(mShell, "delete_event", G_CALLBACK(delete_event_cb),
nullptr);
g_signal_connect(mShell, "window_state_event",
G_CALLBACK(window_state_event_cb), nullptr);
g_signal_connect(mShell, "visibility-notify-event",
G_CALLBACK(visibility_notify_event_cb), nullptr);
g_signal_connect(mShell, "check-resize", G_CALLBACK(check_resize_cb),
nullptr);
g_signal_connect(mShell, "composited-changed",
G_CALLBACK(widget_composited_changed_cb), nullptr);
g_signal_connect(mShell, "property-notify-event",
G_CALLBACK(property_notify_event_cb), nullptr);
if (mWindowType == WindowType::TopLevel) {
g_signal_connect_after(mShell, "size_allocate",
G_CALLBACK(toplevel_window_size_allocate_cb),
nullptr);
}
GdkScreen* screen = gtk_widget_get_screen(mShell);
if (!g_signal_handler_find(screen, G_SIGNAL_MATCH_FUNC, 0, 0, nullptr,
FuncToGpointer(screen_composited_changed_cb),
nullptr)) {
g_signal_connect(screen, "composited-changed",
G_CALLBACK(screen_composited_changed_cb), nullptr);
}
gtk_drag_dest_set((GtkWidget*)mShell, (GtkDestDefaults)0, nullptr, 0,
(GdkDragAction)0);
g_signal_connect(mShell, "drag_motion", G_CALLBACK(drag_motion_event_cb),
nullptr);
g_signal_connect(mShell, "drag_leave", G_CALLBACK(drag_leave_event_cb),
nullptr);
g_signal_connect(mShell, "drag_drop", G_CALLBACK(drag_drop_event_cb),
nullptr);
g_signal_connect(mShell, "drag_data_received",
G_CALLBACK(drag_data_received_event_cb), nullptr);
GtkSettings* default_settings = gtk_settings_get_default();
g_signal_connect_after(default_settings, "notify::gtk-xft-dpi",
G_CALLBACK(settings_xft_dpi_changed_cb), this);
// Widget signals
g_signal_connect_after(mContainer, "size_allocate",
G_CALLBACK(size_allocate_cb), nullptr);
g_signal_connect(mContainer, "hierarchy-changed",
G_CALLBACK(hierarchy_changed_cb), nullptr);
g_signal_connect(mContainer, "notify::scale-factor",
G_CALLBACK(scale_changed_cb), nullptr);
// Initialize mHasMappedToplevel.
hierarchy_changed_cb(GTK_WIDGET(mContainer), nullptr);
// Expose, focus, key, and drag events are sent even to GTK_NO_WINDOW
// widgets.
g_signal_connect(G_OBJECT(mContainer), "draw", G_CALLBACK(expose_event_cb),
nullptr);
g_signal_connect(mContainer, "focus_in_event", G_CALLBACK(focus_in_event_cb),
nullptr);
g_signal_connect(mContainer, "focus_out_event",
G_CALLBACK(focus_out_event_cb), nullptr);
g_signal_connect(mContainer, "key_press_event",
G_CALLBACK(key_press_event_cb), nullptr);
g_signal_connect(mContainer, "key_release_event",
G_CALLBACK(key_release_event_cb), nullptr);
#ifdef MOZ_X11
if (GdkIsX11Display()) {
gtk_widget_set_double_buffered(GTK_WIDGET(mContainer), FALSE);
}
#endif
#ifdef MOZ_WAYLAND
// Initialize the window specific VsyncSource early in order to avoid races
// with BrowserParent::UpdateVsyncParentVsyncDispatcher().
// Only use for toplevel windows for now, see bug 1619246.
if (GdkIsWaylandDisplay() &&
StaticPrefs::widget_wayland_vsync_enabled_AtStartup() &&
IsTopLevelWindowType()) {
mWaylandVsyncSource = new WaylandVsyncSource(this);
mWaylandVsyncDispatcher = new VsyncDispatcher(mWaylandVsyncSource);
LOG_VSYNC(" created WaylandVsyncSource");
}
#endif
// We create input contexts for all containers, except for
// toplevel popup windows
if (mWindowType != WindowType::Popup) {
mIMContext = new IMContextWrapper(this);
}
// These events are sent to the owning widget of the relevant window
// and propagate up to the first widget that handles the events, so we
// need only connect on mShell, if it exists, to catch events on its
// window and windows of mContainer.
g_signal_connect(mContainer, "enter-notify-event",
G_CALLBACK(enter_notify_event_cb), nullptr);
g_signal_connect(mContainer, "leave-notify-event",
G_CALLBACK(leave_notify_event_cb), nullptr);
g_signal_connect(mContainer, "motion-notify-event",
G_CALLBACK(motion_notify_event_cb), nullptr);
g_signal_connect(mContainer, "button-press-event",
G_CALLBACK(button_press_event_cb), nullptr);
g_signal_connect(mContainer, "button-release-event",
G_CALLBACK(button_release_event_cb), nullptr);
g_signal_connect(mContainer, "scroll-event", G_CALLBACK(scroll_event_cb),
nullptr);
if (gtk_check_version(3, 18, 0) == nullptr) {
g_signal_connect(mContainer, "event", G_CALLBACK(generic_event_cb),
nullptr);
}
g_signal_connect(mContainer, "touch-event", G_CALLBACK(touch_event_cb),
nullptr);
LOG(" nsWindow type %d %s\n", int(mWindowType),
mIsPIPWindow ? "PIP window" : "");
LOG(" mShell %p (window %p) mContainer %p mGdkWindow %p XID 0x%lx\n", mShell,
GetToplevelGdkWindow(), mContainer, mGdkWindow, GetX11Window());
// Set default application name when it's empty.
if (mGtkWindowAppName.IsEmpty()) {
mGtkWindowAppName = gAppData->name;
}
mCreated = true;
return NS_OK;
}
void nsWindow::RefreshWindowClass(void) {
GdkWindow* gdkWindow = GetToplevelGdkWindow();
if (!gdkWindow) {
return;
}
if (!mGtkWindowRoleName.IsEmpty()) {
gdk_window_set_role(gdkWindow, mGtkWindowRoleName.get());
}
#ifdef MOZ_X11
if (GdkIsX11Display()) {
XClassHint* class_hint = XAllocClassHint();
if (!class_hint) {
return;
}
const char* res_name =
!mGtkWindowAppName.IsEmpty() ? mGtkWindowAppName.get() : gAppData->name;
const char* res_class = !mGtkWindowAppClass.IsEmpty()
? mGtkWindowAppClass.get()
: gdk_get_program_class();
if (!res_name || !res_class) {
XFree(class_hint);
return;
}
class_hint->res_name = const_cast<char*>(res_name);
class_hint->res_class = const_cast<char*>(res_class);
// Can't use gtk_window_set_wmclass() for this; it prints
// a warning & refuses to make the change.
GdkDisplay* display = gdk_display_get_default();
XSetClassHint(GDK_DISPLAY_XDISPLAY(display),
gdk_x11_window_get_xid(gdkWindow), class_hint);
XFree(class_hint);
}
#endif /* MOZ_X11 */
#ifdef MOZ_WAYLAND
static auto sGdkWaylandWindowSetApplicationId =
(void (*)(GdkWindow*, const char*))dlsym(
RTLD_DEFAULT, "gdk_wayland_window_set_application_id");
if (GdkIsWaylandDisplay() && sGdkWaylandWindowSetApplicationId &&
!mGtkWindowAppClass.IsEmpty()) {
sGdkWaylandWindowSetApplicationId(gdkWindow, mGtkWindowAppClass.get());
}
#endif /* MOZ_WAYLAND */
}
void nsWindow::SetWindowClass(const nsAString& xulWinType,
const nsAString& xulWinClass,
const nsAString& xulWinName) {
if (!mShell) {
return;
}
// If window type attribute is set, parse it into name and role
if (!xulWinType.IsEmpty()) {
char* res_name = ToNewCString(xulWinType, mozilla::fallible);
const char* role = nullptr;
if (res_name) {
// Parse res_name into a name and role. Characters other than
// [A-Za-z0-9_-] are converted to '_'. Anything after the first
// colon is assigned to role; if there's no colon, assign the
// whole thing to both role and res_name.
for (char* c = res_name; *c; c++) {
if (':' == *c) {
*c = 0;
role = c + 1;
} else if (!isascii(*c) ||
(!isalnum(*c) && ('_' != *c) && ('-' != *c))) {
*c = '_';
}
}
res_name[0] = (char)toupper(res_name[0]);
if (!role) role = res_name;
mGtkWindowAppName = res_name;
mGtkWindowRoleName = role;
free(res_name);
}
}
// If window class attribute is set, store it as app class
// If this attribute is not set, reset app class to default
if (!xulWinClass.IsEmpty()) {
CopyUTF16toUTF8(xulWinClass, mGtkWindowAppClass);
} else {
mGtkWindowAppClass = nullptr;
}
// If window class attribute is set, store it as app name
// If both name and type are not set, reset app name to default
if (!xulWinName.IsEmpty()) {
CopyUTF16toUTF8(xulWinName, mGtkWindowAppName);
} else if (xulWinType.IsEmpty()) {
mGtkWindowAppClass = nullptr;
}
RefreshWindowClass();
}
nsAutoCString nsWindow::GetDebugTag() const {
nsAutoCString tag;
tag.AppendPrintf("[%p]", this);
return tag;
}
void nsWindow::NativeMoveResize(bool aMoved, bool aResized) {
GdkPoint topLeft = [&] {
auto target = mBounds.TopLeft();
// gtk_window_move will undo the csd offset, but nothing else, so only add
// the client offset if drawing to the csd titlebar.
if (DrawsToCSDTitlebar()) {
target += mClientOffset;
}
return DevicePixelsToGdkPointRoundDown(target);
}();
GdkRectangle size = DevicePixelsToGdkSizeRoundUp(mLastSizeRequest);
LOG("nsWindow::NativeMoveResize move %d resize %d to %d,%d -> %d x %d\n",
aMoved, aResized, topLeft.x, topLeft.y, size.width, size.height);
if (aMoved) {
ResetScreenBounds();
}
if (aResized && !AreBoundsSane()) {
LOG(" bounds are insane, hidding the window");
// We have been resized but to incorrect size.
// If someone has set this so that the needs show flag is false
// and it needs to be hidden, update the flag and hide the
// window. This flag will be cleared the next time someone
// hides the window or shows it. It also prevents us from
// calling NativeShow(false) excessively on the window which
// causes unneeded X traffic.
if (!mNeedsShow && mIsShown) {
mNeedsShow = true;
NativeShow(false);
}
if (aMoved) {
LOG(" moving to %d x %d", topLeft.x, topLeft.y);
gtk_window_move(GTK_WINDOW(mShell), topLeft.x, topLeft.y);
}
return;
}
// Set position to hidden window on X11 may fail, so save the position
// and move it when it's shown.
if (aMoved && GdkIsX11Display() && IsPopup() &&
!gtk_widget_get_visible(GTK_WIDGET(mShell))) {
LOG(" store position of hidden popup window");
mHiddenPopupPositioned = true;
mPopupPosition = {topLeft.x, topLeft.y};
}
if (IsWaylandPopup()) {
NativeMoveResizeWaylandPopup(aMoved, aResized);
} else {
// x and y give the position of the window manager frame top-left.
if (aMoved) {
gtk_window_move(GTK_WINDOW(mShell), topLeft.x, topLeft.y);
}
if (aResized) {
gtk_window_resize(GTK_WINDOW(mShell), size.width, size.height);
if (mIsDragPopup) {
// DND window is placed inside container so we need to make hard size
// request to ensure parent container is resized too.
gtk_widget_set_size_request(GTK_WIDGET(mShell), size.width,
size.height);
}
}
}
if (aResized) {
// Recompute the input region, in case the window grew or shrunk.
SetInputRegion(mInputRegion);
}
// Does it need to be shown because bounds were previously insane?
if (mNeedsShow && mIsShown && aResized) {
NativeShow(true);
}
}
// We pause compositor to avoid rendering of obsoleted remote content which
// produces flickering.
// Re-enable compositor again when remote content is updated or
// timeout happens.
// Define maximal compositor pause when it's paused to avoid flickering,
// in milliseconds.
#define COMPOSITOR_PAUSE_TIMEOUT (1000)
void nsWindow::PauseCompositorFlickering() {
bool pauseCompositor = IsTopLevelWindowType() &&
mCompositorState == COMPOSITOR_ENABLED &&
mCompositorWidgetDelegate && !mIsDestroyed;
if (!pauseCompositor) {
return;
}
LOG("nsWindow::PauseCompositorFlickering()");
MozClearHandleID(mCompositorPauseTimeoutID, g_source_remove);
CompositorBridgeChild* remoteRenderer = GetRemoteRenderer();
if (remoteRenderer) {
mCompositorState = COMPOSITOR_PAUSED_FLICKERING;
remoteRenderer->SendPause();
mCompositorPauseTimeoutID = (int)g_timeout_add(
COMPOSITOR_PAUSE_TIMEOUT,
[](void* data) -> gint {
nsWindow* window = static_cast<nsWindow*>(data);
if (!window->IsDestroyed()) {
window->ResumeCompositorFlickering();
}
return true;
},
this);
}
}
bool nsWindow::IsWaitingForCompositorResume() {
return mCompositorState == COMPOSITOR_PAUSED_FLICKERING;
}
void nsWindow::ResumeCompositorFlickering() {
MOZ_RELEASE_ASSERT(NS_IsMainThread());
LOG("nsWindow::ResumeCompositorFlickering()\n");
if (mIsDestroyed || !IsWaitingForCompositorResume()) {
LOG(" early quit\n");
return;
}
MozClearHandleID(mCompositorPauseTimeoutID, g_source_remove);
// mCompositorWidgetDelegate can be deleted during timeout.
// In such case just flip compositor back to enabled and let
// SetCompositorWidgetDelegate() or Map event resume it.
if (!mCompositorWidgetDelegate) {
mCompositorState = COMPOSITOR_ENABLED;
return;
}
ResumeCompositorImpl();
}
void nsWindow::ResumeCompositorFromCompositorThread() {
nsCOMPtr<nsIRunnable> event =
NewRunnableMethod("nsWindow::ResumeCompositorFlickering", this,
&nsWindow::ResumeCompositorFlickering);
NS_DispatchToMainThread(event.forget());
}
void nsWindow::ResumeCompositorImpl() {
MOZ_RELEASE_ASSERT(NS_IsMainThread());
LOG("nsWindow::ResumeCompositorImpl()\n");
MOZ_DIAGNOSTIC_ASSERT(mCompositorWidgetDelegate);
mCompositorWidgetDelegate->SetRenderingSurface(GetX11Window(),
GetShapedState());
// As WaylandStartVsync needs mCompositorWidgetDelegate this is the right
// time to start it.
WaylandStartVsync();
CompositorBridgeChild* remoteRenderer = GetRemoteRenderer();
MOZ_RELEASE_ASSERT(remoteRenderer);
remoteRenderer->SendResume();
remoteRenderer->SendForcePresent(wr::RenderReasons::WIDGET);
mCompositorState = COMPOSITOR_ENABLED;
}
void nsWindow::WaylandStartVsync() {
#ifdef MOZ_WAYLAND
if (!mWaylandVsyncSource) {
return;
}
LOG_VSYNC("nsWindow::WaylandStartVsync");
MOZ_DIAGNOSTIC_ASSERT(mCompositorWidgetDelegate);
if (mCompositorWidgetDelegate->AsGtkCompositorWidget() &&
mCompositorWidgetDelegate->AsGtkCompositorWidget()
->GetNativeLayerRoot()) {
LOG_VSYNC(" use source NativeLayerRootWayland");
mWaylandVsyncSource->MaybeUpdateSource(
mCompositorWidgetDelegate->AsGtkCompositorWidget()
->GetNativeLayerRoot()
->AsNativeLayerRootWayland());
} else {
LOG_VSYNC(" use source mContainer");
mWaylandVsyncSource->MaybeUpdateSource(mContainer);
}
mWaylandVsyncSource->EnableMonitor();
#endif
}
void nsWindow::WaylandStopVsync() {
#ifdef MOZ_WAYLAND
if (!mWaylandVsyncSource) {
return;
}
LOG_VSYNC("nsWindow::WaylandStopVsync");
// The widget is going to be hidden, so clear the surface of our
// vsync source.
mWaylandVsyncSource->DisableMonitor();
mWaylandVsyncSource->MaybeUpdateSource(nullptr);
#endif
}
void nsWindow::NativeShow(bool aAction) {
if (aAction) {
// unset our flag now that our window has been shown
mNeedsShow = true;
auto removeShow = MakeScopeExit([&] { mNeedsShow = false; });
LOG("nsWindow::NativeShow show\n");
if (IsWaylandPopup()) {
mPopupClosed = false;
if (WaylandPopupConfigure()) {
AddWindowToPopupHierarchy();
UpdateWaylandPopupHierarchy();
if (mPopupClosed) {
return;
}
}
}
// Set up usertime/startupID metadata for the created window.
// On X11 we use gtk_window_set_startup_id() so we need to call it
// before show.
if (GdkIsX11Display()) {
SetUserTimeAndStartupTokenForActivatedWindow();
}
if (GdkIsWaylandDisplay()) {
if (IsWaylandPopup()) {
ShowWaylandPopupWindow();
} else {
ShowWaylandToplevelWindow();
}
} else {
LOG(" calling gtk_widget_show(mShell)\n");
gtk_widget_show(mShell);
}
if (GdkIsWaylandDisplay()) {
SetUserTimeAndStartupTokenForActivatedWindow();
#ifdef MOZ_WAYLAND
auto token = std::move(mWindowActivationTokenFromEnv);
if (!token.IsEmpty()) {
FocusWaylandWindow(token.get());
}
#endif
}
if (mHiddenPopupPositioned && IsPopup()) {
LOG(" re-position hidden popup window");
gtk_window_move(GTK_WINDOW(mShell), mPopupPosition.x, mPopupPosition.y);
mHiddenPopupPositioned = false;
}
} else {
LOG("nsWindow::NativeShow hide\n");
if (GdkIsWaylandDisplay()) {
if (IsWaylandPopup()) {
// We can't close tracked popups directly as they may have visible
// child popups. Just mark is as closed and let
// UpdateWaylandPopupHierarchy() do the job.
if (IsInPopupHierarchy()) {
WaylandPopupMarkAsClosed();
UpdateWaylandPopupHierarchy();
} else {
// Close untracked popups directly.
HideWaylandPopupWindow(/* aTemporaryHide */ false,
/* aRemoveFromPopupList */ true);
}
} else {
HideWaylandToplevelWindow();
}
} else {
// Workaround window freezes on GTK versions before 3.21.2 by
// ensuring that configure events get dispatched to windows before
// they are unmapped. See bug 1225044.
if (gtk_check_version(3, 21, 2) != nullptr && mPendingConfigures > 0) {
GtkAllocation allocation;
gtk_widget_get_allocation(GTK_WIDGET(mShell), &allocation);
GdkEventConfigure event;
PodZero(&event);
event.type = GDK_CONFIGURE;
event.window = mGdkWindow;
event.send_event = TRUE;
event.x = allocation.x;
event.y = allocation.y;
event.width = allocation.width;
event.height = allocation.height;
auto* shellClass = GTK_WIDGET_GET_CLASS(mShell);
for (unsigned int i = 0; i < mPendingConfigures; i++) {
Unused << shellClass->configure_event(mShell, &event);
}
mPendingConfigures = 0;
}
gtk_widget_hide(mShell);
ClearTransparencyBitmap(); // Release some resources
}
}
}
void nsWindow::SetHasMappedToplevel(bool aState) {
LOG("nsWindow::SetHasMappedToplevel(%d)", aState);
if (aState == mHasMappedToplevel) {
return;
}
// Even when aState == mHasMappedToplevel (as when this method is called
// from Show()), child windows need to have their state checked, so don't
// return early.
mHasMappedToplevel = aState;
if (aState && mNeedsToRetryCapturingMouse) {
CaptureRollupEvents(true);
MOZ_ASSERT(!mNeedsToRetryCapturingMouse);
}
}
LayoutDeviceIntSize nsWindow::GetSafeWindowSize(LayoutDeviceIntSize aSize) {
// The X protocol uses CARD32 for window sizes, but the server (1.11.3)
// reads it as CARD16. Sizes of pixmaps, used for drawing, are (unsigned)
// CARD16 in the protocol, but the server's ProcCreatePixmap returns
// BadAlloc if dimensions cannot be represented by signed shorts.
// Because we are creating Cairo surfaces to represent window buffers,
// we also must ensure that the window can fit in a Cairo surface.
LayoutDeviceIntSize result = aSize;
int32_t maxSize = 32767;
if (mWindowRenderer && mWindowRenderer->AsKnowsCompositor()) {
maxSize = std::min(
maxSize, mWindowRenderer->AsKnowsCompositor()->GetMaxTextureSize());
}
if (result.width > maxSize) {
result.width = maxSize;
}
if (result.height > maxSize) {
result.height = maxSize;
}
return result;
}
void nsWindow::SetTransparencyMode(TransparencyMode aMode) {
bool isTransparent = aMode == TransparencyMode::Transparent;
if (mIsTransparent == isTransparent) {
return;
}
if (mWindowType != WindowType::Popup) {
// https://bugzilla.mozilla.org/show_bug.cgi?id=1344839 reported
// problems cleaning the layer manager for toplevel windows.
// Ignore the request so as to workaround that.
// mIsTransparent is set in Create() if transparency may be required.
if (isTransparent) {
NS_WARNING("Transparent mode not supported on non-popup windows.");
}
return;
}
if (!isTransparent) {
ClearTransparencyBitmap();
} // else the new default alpha values are "all 1", so we don't
// need to change anything yet
mIsTransparent = isTransparent;
if (!mHasAlphaVisual) {
// The choice of layer manager depends on
// GtkCompositorWidgetInitData::Shaped(), which will need to change, so
// clean out the old layer manager.
DestroyLayerManager();
}
}
TransparencyMode nsWindow::GetTransparencyMode() {
return mIsTransparent ? TransparencyMode::Transparent
: TransparencyMode::Opaque;
}
gint nsWindow::GetInputRegionMarginInGdkCoords() {
return DevicePixelsToGdkCoordRoundDown(mInputRegion.mMargin);
}
void nsWindow::SetInputRegion(const InputRegion& aInputRegion) {
mInputRegion = aInputRegion;
GdkWindow* window = GetToplevelGdkWindow();
if (!window) {
return;
}
LOG("nsWindow::SetInputRegion(%d, %d)", aInputRegion.mFullyTransparent,
int(aInputRegion.mMargin));
cairo_rectangle_int_t rect = {0, 0, 0, 0};
cairo_region_t* region = nullptr;
auto releaseRegion = MakeScopeExit([&] {
if (region) {
cairo_region_destroy(region);
}
});
if (aInputRegion.mFullyTransparent) {
region = cairo_region_create_rectangle(&rect);
} else if (aInputRegion.mMargin != 0) {
LayoutDeviceIntRect inputRegion(LayoutDeviceIntPoint(), mLastSizeRequest);
inputRegion.Deflate(aInputRegion.mMargin);
GdkRectangle gdkRect = DevicePixelsToGdkRectRoundOut(inputRegion);
rect = {gdkRect.x, gdkRect.y, gdkRect.width, gdkRect.height};
region = cairo_region_create_rectangle(&rect);
}
gdk_window_input_shape_combine_region(window, region, 0, 0);
// On Wayland gdk_window_input_shape_combine_region() call is cached and
// applied to underlying wl_surface when GdkWindow is repainted.
// Force repaint of GdkWindow to apply the change immediately.
if (GdkIsWaylandDisplay()) {
gdk_window_invalidate_rect(window, nullptr, false);
}
}
// For setting the draggable titlebar region from CSS
// with -moz-window-dragging: drag.
void nsWindow::UpdateWindowDraggingRegion(
const LayoutDeviceIntRegion& aRegion) {
if (mDraggableRegion != aRegion) {
mDraggableRegion = aRegion;
}
}
#ifdef MOZ_ENABLE_DBUS
void nsWindow::SetDBusMenuBar(
RefPtr<mozilla::widget::DBusMenuBar> aDbusMenuBar) {
mDBusMenuBar = std::move(aDbusMenuBar);
}
#endif
LayoutDeviceIntCoord nsWindow::GetTitlebarRadius() {
MOZ_RELEASE_ASSERT(NS_IsMainThread());
int32_t cssCoord = LookAndFeel::GetInt(LookAndFeel::IntID::TitlebarRadius);
return GdkCoordToDevicePixels(cssCoord);
}
LayoutDeviceIntRegion nsWindow::GetOpaqueRegion() const {
AutoReadLock r(mOpaqueRegionLock);
return mOpaqueRegion;
}
// See subtract_corners_from_region() at gtk/gtkwindow.c
// We need to subtract corners from toplevel window opaque region
// to draw transparent corners of default Gtk titlebar.
// Both implementations (cairo_region_t and wl_region) needs to be synced.
static void SubtractTitlebarCorners(LayoutDeviceIntRegion& aRegion,
const LayoutDeviceIntRect& aRect,
LayoutDeviceIntCoord aRadius) {
if (!aRadius) {
return;
}
const LayoutDeviceIntSize size(aRadius, aRadius);
aRegion.SubOut(LayoutDeviceIntRect(aRect.TopLeft(), size));
aRegion.SubOut(LayoutDeviceIntRect(
aRect.TopRight() - LayoutDeviceIntPoint(aRadius, 0), size));
aRegion.SubOut(LayoutDeviceIntRect(
aRect.BottomLeft() - LayoutDeviceIntPoint(0, aRadius), size));
aRegion.SubOut(LayoutDeviceIntRect(
aRect.BottomRight() - LayoutDeviceIntPoint(aRadius, aRadius), size));
}
void nsWindow::UpdateOpaqueRegion(const LayoutDeviceIntRegion& aRegion) {
LayoutDeviceIntRegion region = aRegion;
SubtractTitlebarCorners(region, LayoutDeviceIntRect({}, mBounds.Size()),
GetTitlebarRadius());
{
AutoReadLock r(mOpaqueRegionLock);
if (mOpaqueRegion == region) {
return;
}
}
{
AutoWriteLock w(mOpaqueRegionLock);
mOpaqueRegion = region;
}
UpdateOpaqueRegionInternal();
}
void nsWindow::UpdateOpaqueRegionInternal() {
if (!mCompositedScreen) {
return;
}
if (!IsTopLevelWindowType()) {
// We need to clear target buffer alpha values of popup windows as
// SW-WR paints with alpha blending (see Bug 1674473).
return;
}
GdkWindow* window = GetToplevelGdkWindow();
if (!window) {
return;
}
MOZ_ASSERT(gdk_window_get_window_type(window) == GDK_WINDOW_TOPLEVEL);
{
AutoReadLock lock(mOpaqueRegionLock);
cairo_region_t* region = nullptr;
if (!mOpaqueRegion.IsEmpty()) {
// NOTE(emilio): The opaque region is relative to our mContainer /
// mGdkWindow / inner window, but we're setting it on the top level
// GdkWindow / mShell.
//
// So we need to offset the rects by the position of mGdkWindow, in order
// for them to be in the right coordinate system.
GdkPoint offset{0, 0};
gdk_window_get_position(mGdkWindow, &offset.x, &offset.y);
region = cairo_region_create();
for (auto iter = mOpaqueRegion.RectIter(); !iter.Done(); iter.Next()) {
auto gdkRect = DevicePixelsToGdkRectRoundIn(iter.Get());
cairo_rectangle_int_t rect = {gdkRect.x + offset.x,
gdkRect.y + offset.y, gdkRect.width,
gdkRect.height};
cairo_region_union_rectangle(region, &rect);
}
}
gdk_window_set_opaque_region(window, region);
if (region) {
cairo_region_destroy(region);
}
}
#ifdef MOZ_WAYLAND
if (GdkIsWaylandDisplay()) {
moz_container_wayland_update_opaque_region(mContainer);
}
#endif
}
bool nsWindow::IsChromeWindowTitlebar() {
return mDrawInTitlebar && !mIsPIPWindow &&
mWindowType == WindowType::TopLevel;
}
bool nsWindow::DoDrawTilebarCorners() {
return IsChromeWindowTitlebar() && mSizeMode == nsSizeMode_Normal &&
!mIsTiled;
}
void nsWindow::ResizeTransparencyBitmap() {
if (!mTransparencyBitmap) {
return;
}
if (mBounds.width == mTransparencyBitmapWidth &&
mBounds.height == mTransparencyBitmapHeight) {
return;
}
int32_t newRowBytes = GetBitmapStride(mBounds.width);
int32_t newSize = newRowBytes * mBounds.height;
auto* newBits = new gchar[newSize];
// fill new mask with "transparent", first
memset(newBits, 0, newSize);
// Now copy the intersection of the old and new areas into the new mask
int32_t copyWidth = std::min(mBounds.width, mTransparencyBitmapWidth);
int32_t copyHeight = std::min(mBounds.height, mTransparencyBitmapHeight);
int32_t oldRowBytes = GetBitmapStride(mTransparencyBitmapWidth);
int32_t copyBytes = GetBitmapStride(copyWidth);
int32_t i;
gchar* fromPtr = mTransparencyBitmap;
gchar* toPtr = newBits;
for (i = 0; i < copyHeight; i++) {
memcpy(toPtr, fromPtr, copyBytes);
fromPtr += oldRowBytes;
toPtr += newRowBytes;
}
delete[] mTransparencyBitmap;
mTransparencyBitmap = newBits;
mTransparencyBitmapWidth = mBounds.width;
mTransparencyBitmapHeight = mBounds.height;
}
static bool ChangedMaskBits(gchar* aMaskBits, int32_t aMaskWidth,
int32_t aMaskHeight, const nsIntRect& aRect,
uint8_t* aAlphas, int32_t aStride) {
int32_t x, y, xMax = aRect.XMost(), yMax = aRect.YMost();
int32_t maskBytesPerRow = GetBitmapStride(aMaskWidth);
for (y = aRect.y; y < yMax; y++) {
gchar* maskBytes = aMaskBits + y * maskBytesPerRow;
uint8_t* alphas = aAlphas;
for (x = aRect.x; x < xMax; x++) {
bool newBit = *alphas > 0x7f;
alphas++;
gchar maskByte = maskBytes[x >> 3];
bool maskBit = (maskByte & (1 << (x & 7))) != 0;
if (maskBit != newBit) {
return true;
}
}
aAlphas += aStride;
}
return false;
}
static void UpdateMaskBits(gchar* aMaskBits, int32_t aMaskWidth,
int32_t aMaskHeight, const nsIntRect& aRect,
uint8_t* aAlphas, int32_t aStride) {
int32_t x, y, xMax = aRect.XMost(), yMax = aRect.YMost();
int32_t maskBytesPerRow = GetBitmapStride(aMaskWidth);
for (y = aRect.y; y < yMax; y++) {
gchar* maskBytes = aMaskBits + y * maskBytesPerRow;
uint8_t* alphas = aAlphas;
for (x = aRect.x; x < xMax; x++) {
bool newBit = *alphas > 0x7f;
alphas++;
gchar mask = 1 << (x & 7);
gchar maskByte = maskBytes[x >> 3];
// Note: '-newBit' turns 0 into 00...00 and 1 into 11...11
maskBytes[x >> 3] = (maskByte & ~mask) | (-newBit & mask);
}
aAlphas += aStride;
}
}
void nsWindow::ApplyTransparencyBitmap() {
#ifdef MOZ_X11
// We use X11 calls where possible, because GDK handles expose events
// for shaped windows in a way that's incompatible with us (Bug 635903).
// It doesn't occur when the shapes are set through X.
Display* xDisplay = GDK_WINDOW_XDISPLAY(mGdkWindow);
Window xDrawable = GDK_WINDOW_XID(mGdkWindow);
Pixmap maskPixmap = XCreateBitmapFromData(
xDisplay, xDrawable, mTransparencyBitmap, mTransparencyBitmapWidth,
mTransparencyBitmapHeight);
XShapeCombineMask(xDisplay, xDrawable, ShapeBounding, 0, 0, maskPixmap,
ShapeSet);
XFreePixmap(xDisplay, maskPixmap);
#endif // MOZ_X11
}
void nsWindow::ClearTransparencyBitmap() {
if (!mTransparencyBitmap) {
return;
}
delete[] mTransparencyBitmap;
mTransparencyBitmap = nullptr;
mTransparencyBitmapWidth = 0;
mTransparencyBitmapHeight = 0;
if (!mShell) {
return;
}
#ifdef MOZ_X11
if (MOZ_UNLIKELY(!mGdkWindow)) {
return;
}
Display* xDisplay = GDK_WINDOW_XDISPLAY(mGdkWindow);
Window xWindow = gdk_x11_window_get_xid(mGdkWindow);
XShapeCombineMask(xDisplay, xWindow, ShapeBounding, 0, 0, X11None, ShapeSet);
#endif
}
nsresult nsWindow::UpdateTranslucentWindowAlphaInternal(const nsIntRect& aRect,
uint8_t* aAlphas,
int32_t aStride) {
NS_ASSERTION(mIsTransparent, "Window is not transparent");
NS_ASSERTION(!mTransparencyBitmapForTitlebar,
"Transparency bitmap is already used for titlebar rendering");
if (mTransparencyBitmap == nullptr) {
int32_t size = GetBitmapStride(mBounds.width) * mBounds.height;
mTransparencyBitmap = new gchar[size];
memset(mTransparencyBitmap, 255, size);
mTransparencyBitmapWidth = mBounds.width;
mTransparencyBitmapHeight = mBounds.height;
} else {
ResizeTransparencyBitmap();
}
nsIntRect rect;
rect.IntersectRect(aRect, nsIntRect(0, 0, mBounds.width, mBounds.height));
if (!ChangedMaskBits(mTransparencyBitmap, mBounds.width, mBounds.height, rect,
aAlphas, aStride)) {
// skip the expensive stuff if the mask bits haven't changed; hopefully
// this is the common case
return NS_OK;
}
UpdateMaskBits(mTransparencyBitmap, mBounds.width, mBounds.height, rect,
aAlphas, aStride);
if (!mNeedsShow) {
ApplyTransparencyBitmap();
}
return NS_OK;
}
void nsWindow::UpdateTitlebarTransparencyBitmap() {
NS_ASSERTION(mTransparencyBitmapForTitlebar,
"Transparency bitmap is already used to draw window shape");
if (!mGdkWindow || !mDrawInTitlebar ||
(mBounds.width == mTransparencyBitmapWidth &&
mBounds.height == mTransparencyBitmapHeight)) {
return;
}
bool maskCreate =
!mTransparencyBitmap || mBounds.width > mTransparencyBitmapWidth;
bool maskUpdate =
!mTransparencyBitmap || mBounds.width != mTransparencyBitmapWidth;
LayoutDeviceIntCoord radius = GetTitlebarRadius();
if (maskCreate) {
delete[] mTransparencyBitmap;
int32_t size = GetBitmapStride(mBounds.width) * radius;
mTransparencyBitmap = new gchar[size];
mTransparencyBitmapWidth = mBounds.width;
} else {
mTransparencyBitmapWidth = mBounds.width;
}
mTransparencyBitmapHeight = mBounds.height;
if (maskUpdate) {
cairo_surface_t* surface = cairo_image_surface_create(
CAIRO_FORMAT_A8, mTransparencyBitmapWidth, radius);
if (!surface) {
return;
}
cairo_t* cr = cairo_create(surface);
GtkWidgetState state;
memset((void*)&state, 0, sizeof(state));
GdkRectangle rect = {0, 0, mTransparencyBitmapWidth, radius};
moz_gtk_widget_paint(MOZ_GTK_HEADER_BAR, cr, &rect, &state, 0,
GTK_TEXT_DIR_NONE);
cairo_destroy(cr);
cairo_surface_mark_dirty(surface);
cairo_surface_flush(surface);
UpdateMaskBits(mTransparencyBitmap, mTransparencyBitmapWidth, radius,
nsIntRect(0, 0, mTransparencyBitmapWidth, radius),
cairo_image_surface_get_data(surface),
cairo_format_stride_for_width(CAIRO_FORMAT_A8,
mTransparencyBitmapWidth));
cairo_surface_destroy(surface);
}
#ifdef MOZ_X11
if (!mNeedsShow) {
Display* xDisplay = GDK_WINDOW_XDISPLAY(mGdkWindow);
Window xDrawable = GDK_WINDOW_XID(mGdkWindow);
Pixmap maskPixmap =
XCreateBitmapFromData(xDisplay, xDrawable, mTransparencyBitmap,
mTransparencyBitmapWidth, radius);
XShapeCombineMask(xDisplay, xDrawable, ShapeBounding, 0, 0, maskPixmap,
ShapeSet);
if (mTransparencyBitmapHeight > radius) {
XRectangle rect = {0, 0, (unsigned short)mTransparencyBitmapWidth,
(unsigned short)(mTransparencyBitmapHeight - radius)};
XShapeCombineRectangles(xDisplay, xDrawable, ShapeBounding, 0, radius,
&rect, 1, ShapeUnion, 0);
}
XFreePixmap(xDisplay, maskPixmap);
}
#endif
}
GtkWidget* nsWindow::GetToplevelWidget() const { return mShell; }
GdkWindow* nsWindow::GetToplevelGdkWindow() const {
return gtk_widget_get_window(mShell);
}
nsWindow* nsWindow::GetContainerWindow() const {
GtkWidget* owningWidget = GTK_WIDGET(mContainer);
if (!owningWidget) {
return nullptr;
}
nsWindow* window = get_window_for_gtk_widget(owningWidget);
NS_ASSERTION(window, "No nsWindow for container widget");
return window;
}
void nsWindow::SetUrgencyHint(GtkWidget* top_window, bool state) {
LOG(" nsWindow::SetUrgencyHint widget %p\n", top_window);
if (!top_window) {
return;
}
GdkWindow* window = gtk_widget_get_window(top_window);
if (!window) {
return;
}
// TODO: Use xdg-activation on Wayland?
gdk_window_set_urgency_hint(window, state);
}
void nsWindow::SetDefaultIcon(void) { SetIcon(u"default"_ns); }
gint nsWindow::ConvertBorderStyles(BorderStyle aStyle) {
gint w = 0;
if (aStyle == BorderStyle::Default) {
return -1;
}
// note that we don't handle BorderStyle::Close yet
if (aStyle & BorderStyle::All) w |= GDK_DECOR_ALL;
if (aStyle & BorderStyle::Border) w |= GDK_DECOR_BORDER;
if (aStyle & BorderStyle::ResizeH) w |= GDK_DECOR_RESIZEH;
if (aStyle & BorderStyle::Title) w |= GDK_DECOR_TITLE;
if (aStyle & BorderStyle::Menu) w |= GDK_DECOR_MENU;
if (aStyle & BorderStyle::Minimize) w |= GDK_DECOR_MINIMIZE;
if (aStyle & BorderStyle::Maximize) w |= GDK_DECOR_MAXIMIZE;
return w;
}
class FullscreenTransitionWindow final : public nsISupports {
public:
NS_DECL_ISUPPORTS
explicit FullscreenTransitionWindow(GtkWidget* aWidget);
GtkWidget* mWindow;
private:
~FullscreenTransitionWindow();
};
NS_IMPL_ISUPPORTS0(FullscreenTransitionWindow)
FullscreenTransitionWindow::FullscreenTransitionWindow(GtkWidget* aWidget) {
mWindow = gtk_window_new(GTK_WINDOW_POPUP);
GtkWindow* gtkWin = GTK_WINDOW(mWindow);
gtk_window_set_type_hint(gtkWin, GDK_WINDOW_TYPE_HINT_SPLASHSCREEN);
GtkWindowSetTransientFor(gtkWin, GTK_WINDOW(aWidget));
gtk_window_set_decorated(gtkWin, false);
GdkWindow* gdkWin = gtk_widget_get_window(aWidget);
GdkScreen* screen = gtk_widget_get_screen(aWidget);
gint monitorNum = gdk_screen_get_monitor_at_window(screen, gdkWin);
GdkRectangle monitorRect;
gdk_screen_get_monitor_geometry(screen, monitorNum, &monitorRect);
gtk_window_set_screen(gtkWin, screen);
gtk_window_move(gtkWin, monitorRect.x, monitorRect.y);
MOZ_ASSERT(monitorRect.width > 0 && monitorRect.height > 0,
"Can't resize window smaller than 1x1.");
gtk_window_resize(gtkWin, monitorRect.width, monitorRect.height);
GdkRGBA bgColor;
bgColor.red = bgColor.green = bgColor.blue = 0.0;
bgColor.alpha = 1.0;
gtk_widget_override_background_color(mWindow, GTK_STATE_FLAG_NORMAL,
&bgColor);
gtk_widget_set_opacity(mWindow, 0.0);
gtk_widget_show(mWindow);
}
FullscreenTransitionWindow::~FullscreenTransitionWindow() {
gtk_widget_destroy(mWindow);
}
class FullscreenTransitionData {
public:
FullscreenTransitionData(nsIWidget::FullscreenTransitionStage aStage,
uint16_t aDuration, nsIRunnable* aCallback,
FullscreenTransitionWindow* aWindow)
: mStage(aStage),
mStartTime(TimeStamp::Now()),
mDuration(TimeDuration::FromMilliseconds(aDuration)),
mCallback(aCallback),
mWindow(aWindow) {}
static const guint sInterval = 1000 / 30; // 30fps
static gboolean TimeoutCallback(gpointer aData);
private:
nsIWidget::FullscreenTransitionStage mStage;
TimeStamp mStartTime;
TimeDuration mDuration;
nsCOMPtr<nsIRunnable> mCallback;
RefPtr<FullscreenTransitionWindow> mWindow;
};
/* static */
gboolean FullscreenTransitionData::TimeoutCallback(gpointer aData) {
bool finishing = false;
auto* data = static_cast<FullscreenTransitionData*>(aData);
gdouble opacity = (TimeStamp::Now() - data->mStartTime) / data->mDuration;
if (opacity >= 1.0) {
opacity = 1.0;
finishing = true;
}
if (data->mStage == nsIWidget::eAfterFullscreenToggle) {
opacity = 1.0 - opacity;
}
gtk_widget_set_opacity(data->mWindow->mWindow, opacity);
if (!finishing) {
return TRUE;
}
NS_DispatchToMainThread(data->mCallback.forget());
delete data;
return FALSE;
}
/* virtual */
bool nsWindow::PrepareForFullscreenTransition(nsISupports** aData) {
if (!mCompositedScreen) {
return false;
}
*aData = do_AddRef(new FullscreenTransitionWindow(mShell)).take();
return true;
}
/* virtual */
void nsWindow::PerformFullscreenTransition(FullscreenTransitionStage aStage,
uint16_t aDuration,
nsISupports* aData,
nsIRunnable* aCallback) {
auto* data = static_cast<FullscreenTransitionWindow*>(aData);
// This will be released at the end of the last timeout callback for it.
auto* transitionData =
new FullscreenTransitionData(aStage, aDuration, aCallback, data);
g_timeout_add_full(G_PRIORITY_HIGH, FullscreenTransitionData::sInterval,
FullscreenTransitionData::TimeoutCallback, transitionData,
nullptr);
}
already_AddRefed<widget::Screen> nsWindow::GetWidgetScreen() {
// Wayland can read screen directly
if (GdkIsWaylandDisplay()) {
if (RefPtr<Screen> screen = ScreenHelperGTK::GetScreenForWindow(this)) {
return screen.forget();
}
}
// GetScreenBounds() is slow for the GTK port so we override and use
// mBounds directly.
ScreenManager& screenManager = ScreenManager::GetSingleton();
LayoutDeviceIntRect bounds = mBounds;
DesktopIntRect deskBounds = RoundedToInt(bounds / GetDesktopToDeviceScale());
return screenManager.ScreenForRect(deskBounds);
}
RefPtr<VsyncDispatcher> nsWindow::GetVsyncDispatcher() {
#ifdef MOZ_WAYLAND
if (mWaylandVsyncDispatcher) {
return mWaylandVsyncDispatcher;
}
#endif
return nullptr;
}
bool nsWindow::SynchronouslyRepaintOnResize() {
if (GdkIsWaylandDisplay()) {
// See Bug 1734368
// Don't request synchronous repaint on HW accelerated backend - mesa can be
// deadlocked when it's missing back buffer and main event loop is blocked.
return false;
}
// default is synced repaint.
return true;
}
void nsWindow::KioskLockOnMonitor() {
// Available as of GTK 3.18+
static auto sGdkWindowFullscreenOnMonitor =
(void (*)(GdkWindow* window, gint monitor))dlsym(
RTLD_DEFAULT, "gdk_window_fullscreen_on_monitor");
if (!sGdkWindowFullscreenOnMonitor) {
return;
}
int monitor = mKioskMonitor.value();
if (monitor < 0 || monitor >= ScreenHelperGTK::GetMonitorCount()) {
LOG("nsWindow::KioskLockOnMonitor() wrong monitor number! (%d)\n", monitor);
return;
}
LOG("nsWindow::KioskLockOnMonitor() locked on %d\n", monitor);
sGdkWindowFullscreenOnMonitor(GetToplevelGdkWindow(), monitor);
}
static bool IsFullscreenSupported(GtkWidget* aShell) {
#ifdef MOZ_X11
GdkScreen* screen = gtk_widget_get_screen(aShell);
GdkAtom atom = gdk_atom_intern("_NET_WM_STATE_FULLSCREEN", FALSE);
return gdk_x11_screen_supports_net_wm_hint(screen, atom);
#else
return true;
#endif
}
nsresult nsWindow::MakeFullScreen(bool aFullScreen) {
LOG("nsWindow::MakeFullScreen aFullScreen %d\n", aFullScreen);
if (GdkIsX11Display() && !IsFullscreenSupported(mShell)) {
return NS_ERROR_NOT_AVAILABLE;
}
if (aFullScreen) {
if (mSizeMode != nsSizeMode_Fullscreen &&
mSizeMode != nsSizeMode_Minimized) {
mLastSizeModeBeforeFullscreen = mSizeMode;
}
if (mIsPIPWindow) {
gtk_window_set_type_hint(GTK_WINDOW(mShell), GDK_WINDOW_TYPE_HINT_NORMAL);
if (gUseAspectRatio) {
mAspectRatioSaved = mAspectRatio;
mAspectRatio = 0.0f;
ApplySizeConstraints();
}
}
if (mKioskMonitor.isSome()) {
KioskLockOnMonitor();
} else {
gtk_window_fullscreen(GTK_WINDOW(mShell));
}
} else {
// Kiosk mode always use fullscreen mode.
if (gKioskMode) {
return NS_ERROR_NOT_AVAILABLE;
}
gtk_window_unfullscreen(GTK_WINDOW(mShell));
if (mIsPIPWindow && gUseAspectRatio) {
mAspectRatio = mAspectRatioSaved;
// ApplySizeConstraints();
}
}
MOZ_ASSERT(mLastSizeModeBeforeFullscreen != nsSizeMode_Fullscreen);
return NS_OK;
}
void nsWindow::SetWindowDecoration(BorderStyle aStyle) {
LOG("nsWindow::SetWindowDecoration() Border style %x\n", int(aStyle));
// We can't use mGdkWindow directly here as it can be
// derived from mContainer which is not a top-level GdkWindow.
GdkWindow* window = GetToplevelGdkWindow();
// Sawfish, metacity, and presumably other window managers get
// confused if we change the window decorations while the window
// is visible.
bool wasVisible = false;
if (gdk_window_is_visible(window)) {
gdk_window_hide(window);
wasVisible = true;
}
gint wmd = ConvertBorderStyles(aStyle);
if (wmd != -1) gdk_window_set_decorations(window, (GdkWMDecoration)wmd);
if (wasVisible) gdk_window_show(window);
// For some window managers, adding or removing window decorations
// requires unmapping and remapping our toplevel window. Go ahead
// and flush the queue here so that we don't end up with a BadWindow
// error later when this happens (when the persistence timer fires
// and GetWindowPos is called)
#ifdef MOZ_X11
if (GdkIsX11Display()) {
XSync(GDK_DISPLAY_XDISPLAY(gdk_display_get_default()), X11False);
} else
#endif /* MOZ_X11 */
{
gdk_flush();
}
}
void nsWindow::HideWindowChrome(bool aShouldHide) {
SetWindowDecoration(aShouldHide ? BorderStyle::None : mBorderStyle);
}
bool nsWindow::CheckForRollup(gdouble aMouseX, gdouble aMouseY, bool aIsWheel,
bool aAlwaysRollup) {
LOG("nsWindow::CheckForRollup() aAlwaysRollup %d", aAlwaysRollup);
nsIRollupListener* rollupListener = GetActiveRollupListener();
nsCOMPtr<nsIWidget> rollupWidget;
if (rollupListener) {
rollupWidget = rollupListener->GetRollupWidget();
}
if (!rollupWidget) {
return false;
}
auto* rollupWindow =
(GdkWindow*)rollupWidget->GetNativeData(NS_NATIVE_WINDOW);
if (!aAlwaysRollup && is_mouse_in_window(rollupWindow, aMouseX, aMouseY)) {
return false;
}
bool retVal = false;
if (aIsWheel) {
retVal = rollupListener->ShouldConsumeOnMouseWheelEvent();
if (!rollupListener->ShouldRollupOnMouseWheelEvent()) {
return retVal;
}
}
LayoutDeviceIntPoint point;
nsIRollupListener::RollupOptions options{0,
nsIRollupListener::FlushViews::Yes};
// if we're dealing with menus, we probably have submenus and
// we don't want to rollup if the click is in a parent menu of
// the current submenu
if (!aAlwaysRollup) {
AutoTArray<nsIWidget*, 5> widgetChain;
uint32_t sameTypeCount =
rollupListener->GetSubmenuWidgetChain(&widgetChain);
for (unsigned long i = 0; i < widgetChain.Length(); ++i) {
nsIWidget* widget = widgetChain[i];
auto* currWindow = (GdkWindow*)widget->GetNativeData(NS_NATIVE_WINDOW);
if (is_mouse_in_window(currWindow, aMouseX, aMouseY)) {
// Don't roll up if the mouse event occurred within a menu of the same
// type.
// If the mouse event occurred in a menu higher than that, roll up, but
// pass the number of popups to Rollup so that only those of the same
// type close up.
if (i < sameTypeCount) {
return retVal;
}
options.mCount = sameTypeCount;
break;
}
} // foreach parent menu widget
if (!aIsWheel) {
point = GdkEventCoordsToDevicePixels(aMouseX, aMouseY);
options.mPoint = &point;
}
}
if (mSizeMode == nsSizeMode_Minimized) {
// When we try to rollup in a minimized window, transitionend events for
// panels might not fire and thus we might not hide the popup after all,
// see bug 1810797.
options.mAllowAnimations = nsIRollupListener::AllowAnimations::No;
}
if (rollupListener->Rollup(options)) {
retVal = true;
}
return retVal;
}
bool nsWindow::DragInProgress() {
nsCOMPtr<nsIDragService> dragService =
do_GetService("@mozilla.org/widget/dragservice;1");
if (!dragService) {
return false;
}
nsCOMPtr<nsIDragSession> currentDragSession =
dragService->GetCurrentSession(this);
return !!currentDragSession;
}
// This is an ugly workaround for
// https://bugzilla.mozilla.org/show_bug.cgi?id=1622107
// We try to detect when Wayland compositor / gtk fails to deliver
// info about finished D&D operations and cancel it on our own.
MOZ_CAN_RUN_SCRIPT static void WaylandDragWorkaround(nsWindow* aWindow,
GdkEventButton* aEvent) {
static int buttonPressCountWithDrag = 0;
// We track only left button state as Firefox performs D&D on left
// button only.
if (aEvent->button != 1 || aEvent->type != GDK_BUTTON_PRESS) {
return;
}
nsCOMPtr<nsIDragService> dragService =
do_GetService("@mozilla.org/widget/dragservice;1");
if (!dragService) {
return;
}
nsCOMPtr<nsIDragSession> currentDragSession =
dragService->GetCurrentSession(aWindow);
if (!currentDragSession) {
buttonPressCountWithDrag = 0;
return;
}
buttonPressCountWithDrag++;
if (buttonPressCountWithDrag > 1) {
NS_WARNING(
"Quit unfinished Wayland Drag and Drop operation. Buggy Wayland "
"compositor?");
buttonPressCountWithDrag = 0;
currentDragSession->EndDragSession(false, 0);
}
}
static nsWindow* get_window_for_gtk_widget(GtkWidget* widget) {
gpointer user_data = g_object_get_data(G_OBJECT(widget), "nsWindow");
return static_cast<nsWindow*>(user_data);
}
static nsWindow* get_window_for_gdk_window(GdkWindow* window) {
gpointer user_data = g_object_get_data(G_OBJECT(window), "nsWindow");
return static_cast<nsWindow*>(user_data);
}
static bool is_mouse_in_window(GdkWindow* aWindow, gdouble aMouseX,
gdouble aMouseY) {
GdkWindow* window = aWindow;
if (!window) {
return false;
}
gint x = 0;
gint y = 0;
{
gint offsetX = 0;
gint offsetY = 0;
while (window) {
gint tmpX = 0;
gint tmpY = 0;
gdk_window_get_position(window, &tmpX, &tmpY);
GtkWidget* widget = get_gtk_widget_for_gdk_window(window);
// if this is a window, compute x and y given its origin and our
// offset
if (GTK_IS_WINDOW(widget)) {
x = tmpX + offsetX;
y = tmpY + offsetY;
break;
}
offsetX += tmpX;
offsetY += tmpY;
window = gdk_window_get_parent(window);
}
}
gint margin = 0;
if (nsWindow* w = get_window_for_gdk_window(aWindow)) {
margin = w->GetInputRegionMarginInGdkCoords();
}
x += margin;
y += margin;
gint w = gdk_window_get_width(aWindow) - margin;
gint h = gdk_window_get_height(aWindow) - margin;
return aMouseX > x && aMouseX < x + w && aMouseY > y && aMouseY < y + h;
}
static GtkWidget* get_gtk_widget_for_gdk_window(GdkWindow* window) {
gpointer user_data = nullptr;
gdk_window_get_user_data(window, &user_data);
return GTK_WIDGET(user_data);
}
static GdkCursor* get_gtk_cursor_from_type(uint8_t aCursorType) {
GdkDisplay* defaultDisplay = gdk_display_get_default();
GdkCursor* gdkcursor = nullptr;
// GtkCursors are defined at nsGtkCursors.h
if (aCursorType > MOZ_CURSOR_NONE) {
return nullptr;
}
// If by now we don't have a xcursor, this means we have to make a custom
// one. First, we try creating a named cursor based on the hash of our
// custom bitmap, as libXcursor has some magic to convert bitmapped cursors
// to themed cursors
if (GtkCursors[aCursorType].hash) {
gdkcursor =
gdk_cursor_new_from_name(defaultDisplay, GtkCursors[aCursorType].hash);
if (gdkcursor) {
return gdkcursor;
}
}
LOGW("get_gtk_cursor_from_type(): Failed to get cursor type %d, try bitmap",
aCursorType);
// If we still don't have a xcursor, we now really create a bitmap cursor
GdkPixbuf* cursor_pixbuf =
gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, 32, 32);
if (!cursor_pixbuf) {
return nullptr;
}
guchar* data = gdk_pixbuf_get_pixels(cursor_pixbuf);
// Read data from GtkCursors and compose RGBA surface from 1bit bitmap and
// mask GtkCursors bits and mask are 32x32 monochrome bitmaps (1 bit for
// each pixel) so it's 128 byte array (4 bytes for are one bitmap row and
// there are 32 rows here).
const unsigned char* bits = GtkCursors[aCursorType].bits;
const unsigned char* mask_bits = GtkCursors[aCursorType].mask_bits;
for (int i = 0; i < 128; i++) {
char bit = (char)*bits++;
char mask = (char)*mask_bits++;
for (int j = 0; j < 8; j++) {
unsigned char pix = ~(((bit >> j) & 0x01) * 0xff);
*data++ = pix;
*data++ = pix;
*data++ = pix;
*data++ = (((mask >> j) & 0x01) * 0xff);
}
}
gdkcursor = gdk_cursor_new_from_pixbuf(
gdk_display_get_default(), cursor_pixbuf, GtkCursors[aCursorType].hot_x,
GtkCursors[aCursorType].hot_y);
g_object_unref(cursor_pixbuf);
return gdkcursor;
}
static GdkCursor* get_gtk_cursor_legacy(nsCursor aCursor) {
GdkCursor* gdkcursor = nullptr;
Maybe<uint8_t> fallbackType;
GdkDisplay* defaultDisplay = gdk_display_get_default();
// The strategy here is to use standard GDK cursors, and, if not available,
// load by standard name with gdk_cursor_new_from_name.
// Spec is here: http://www.freedesktop.org/wiki/Specifications/cursor-spec/
switch (aCursor) {
case eCursor_standard:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_LEFT_PTR);
break;
case eCursor_wait:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_WATCH);
break;
case eCursor_select:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_XTERM);
break;
case eCursor_hyperlink:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_HAND2);
break;
case eCursor_n_resize:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_TOP_SIDE);
break;
case eCursor_s_resize:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_BOTTOM_SIDE);
break;
case eCursor_w_resize:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_LEFT_SIDE);
break;
case eCursor_e_resize:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_RIGHT_SIDE);
break;
case eCursor_nw_resize:
gdkcursor =
gdk_cursor_new_for_display(defaultDisplay, GDK_TOP_LEFT_CORNER);
break;
case eCursor_se_resize:
gdkcursor =
gdk_cursor_new_for_display(defaultDisplay, GDK_BOTTOM_RIGHT_CORNER);
break;
case eCursor_ne_resize:
gdkcursor =
gdk_cursor_new_for_display(defaultDisplay, GDK_TOP_RIGHT_CORNER);
break;
case eCursor_sw_resize:
gdkcursor =
gdk_cursor_new_for_display(defaultDisplay, GDK_BOTTOM_LEFT_CORNER);
break;
case eCursor_crosshair:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_CROSSHAIR);
break;
case eCursor_move:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_FLEUR);
break;
case eCursor_help:
gdkcursor =
gdk_cursor_new_for_display(defaultDisplay, GDK_QUESTION_ARROW);
break;
case eCursor_copy: // CSS3
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "copy");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_COPY);
break;
case eCursor_alias:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "alias");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_ALIAS);
break;
case eCursor_context_menu:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "context-menu");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_CONTEXT_MENU);
break;
case eCursor_cell:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_PLUS);
break;
// Those two aren’t standardized. Trying both KDE’s and GNOME’s names
case eCursor_grab:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "openhand");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_HAND_GRAB);
break;
case eCursor_grabbing:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "closedhand");
if (!gdkcursor) {
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "grabbing");
}
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_HAND_GRABBING);
break;
case eCursor_spinning:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "progress");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_SPINNING);
break;
case eCursor_zoom_in:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "zoom-in");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_ZOOM_IN);
break;
case eCursor_zoom_out:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "zoom-out");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_ZOOM_OUT);
break;
case eCursor_not_allowed:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "not-allowed");
if (!gdkcursor) { // nonstandard, yet common
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "crossed_circle");
}
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_NOT_ALLOWED);
break;
case eCursor_no_drop:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "no-drop");
if (!gdkcursor) { // this nonstandard sequence makes it work on KDE and
// GNOME
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "forbidden");
}
if (!gdkcursor) {
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "circle");
}
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_NOT_ALLOWED);
break;
case eCursor_vertical_text:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "vertical-text");
if (!gdkcursor) {
fallbackType.emplace(MOZ_CURSOR_VERTICAL_TEXT);
}
break;
case eCursor_all_scroll:
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_FLEUR);
break;
case eCursor_nesw_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "size_bdiag");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_NESW_RESIZE);
break;
case eCursor_nwse_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "size_fdiag");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_NWSE_RESIZE);
break;
case eCursor_ns_resize:
gdkcursor =
gdk_cursor_new_for_display(defaultDisplay, GDK_SB_V_DOUBLE_ARROW);
break;
case eCursor_ew_resize:
gdkcursor =
gdk_cursor_new_for_display(defaultDisplay, GDK_SB_H_DOUBLE_ARROW);
break;
// Here, two better fitting cursors exist in some cursor themes. Try those
// first
case eCursor_row_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "split_v");
if (!gdkcursor) {
gdkcursor =
gdk_cursor_new_for_display(defaultDisplay, GDK_SB_V_DOUBLE_ARROW);
}
break;
case eCursor_col_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "split_h");
if (!gdkcursor) {
gdkcursor =
gdk_cursor_new_for_display(defaultDisplay, GDK_SB_H_DOUBLE_ARROW);
}
break;
case eCursor_none:
fallbackType.emplace(MOZ_CURSOR_NONE);
break;
default:
NS_ASSERTION(aCursor, "Invalid cursor type");
gdkcursor = gdk_cursor_new_for_display(defaultDisplay, GDK_LEFT_PTR);
break;
}
if (!gdkcursor && fallbackType.isSome()) {
LOGW("get_gtk_cursor_legacy(): Failed to get cursor %d, try fallback",
aCursor);
gdkcursor = get_gtk_cursor_from_type(*fallbackType);
}
return gdkcursor;
}
static GdkCursor* get_gtk_cursor_from_name(nsCursor aCursor) {
GdkCursor* gdkcursor = nullptr;
Maybe<uint8_t> fallbackType;
GdkDisplay* defaultDisplay = gdk_display_get_default();
switch (aCursor) {
case eCursor_standard:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "default");
break;
case eCursor_wait:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "wait");
break;
case eCursor_select:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "text");
break;
case eCursor_hyperlink:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "pointer");
break;
case eCursor_n_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "n-resize");
break;
case eCursor_s_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "s-resize");
break;
case eCursor_w_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "w-resize");
break;
case eCursor_e_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "e-resize");
break;
case eCursor_nw_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "nw-resize");
break;
case eCursor_se_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "se-resize");
break;
case eCursor_ne_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "ne-resize");
break;
case eCursor_sw_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "sw-resize");
break;
case eCursor_crosshair:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "crosshair");
break;
case eCursor_move:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "move");
break;
case eCursor_help:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "help");
break;
case eCursor_copy:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "copy");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_COPY);
break;
case eCursor_alias:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "alias");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_ALIAS);
break;
case eCursor_context_menu:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "context-menu");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_CONTEXT_MENU);
break;
case eCursor_cell:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "cell");
break;
case eCursor_grab:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "grab");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_HAND_GRAB);
break;
case eCursor_grabbing:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "grabbing");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_HAND_GRABBING);
break;
case eCursor_spinning:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "progress");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_SPINNING);
break;
case eCursor_zoom_in:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "zoom-in");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_ZOOM_IN);
break;
case eCursor_zoom_out:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "zoom-out");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_ZOOM_OUT);
break;
case eCursor_not_allowed:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "not-allowed");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_NOT_ALLOWED);
break;
case eCursor_no_drop:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "no-drop");
if (!gdkcursor) { // this nonstandard sequence makes it work on KDE and
// GNOME
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "forbidden");
}
if (!gdkcursor) {
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "circle");
}
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_NOT_ALLOWED);
break;
case eCursor_vertical_text:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "vertical-text");
if (!gdkcursor) {
fallbackType.emplace(MOZ_CURSOR_VERTICAL_TEXT);
}
break;
case eCursor_all_scroll:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "move");
break;
case eCursor_nesw_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "nesw-resize");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_NESW_RESIZE);
break;
case eCursor_nwse_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "nwse-resize");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_NWSE_RESIZE);
break;
case eCursor_ns_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "ns-resize");
break;
case eCursor_ew_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "ew-resize");
break;
case eCursor_row_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "row-resize");
break;
case eCursor_col_resize:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "col-resize");
break;
case eCursor_none:
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "none");
if (!gdkcursor) fallbackType.emplace(MOZ_CURSOR_NONE);
break;
default:
NS_ASSERTION(aCursor, "Invalid cursor type");
gdkcursor = gdk_cursor_new_from_name(defaultDisplay, "default");
break;
}
if (!gdkcursor && fallbackType.isSome()) {
LOGW("get_gtk_cursor_from_name(): Failed to get cursor %d, try fallback",
aCursor);
gdkcursor = get_gtk_cursor_from_type(*fallbackType);
}
return gdkcursor;
}
static GdkCursor* get_gtk_cursor(nsCursor aCursor) {
GdkCursor* gdkcursor = nullptr;
if ((gdkcursor = gCursorCache[aCursor])) {
return gdkcursor;
}
gdkcursor = StaticPrefs::widget_gtk_legacy_cursors_enabled()
? get_gtk_cursor_legacy(aCursor)
: get_gtk_cursor_from_name(aCursor);
gCursorCache[aCursor] = gdkcursor;
return gdkcursor;
}
// gtk callbacks
void draw_window_of_widget(GtkWidget* widget, GdkWindow* aWindow, cairo_t* cr) {
if (gtk_cairo_should_draw_window(cr, aWindow)) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(widget);
if (!window) {
NS_WARNING("Cannot get nsWindow from GtkWidget");
} else {
cairo_save(cr);
gtk_cairo_transform_to_window(cr, widget, aWindow);
// TODO - window->OnExposeEvent() can destroy this or other windows,
// do we need to handle it somehow?
window->OnExposeEvent(cr);
cairo_restore(cr);
}
}
}
/* static */
gboolean expose_event_cb(GtkWidget* widget, cairo_t* cr) {
draw_window_of_widget(widget, gtk_widget_get_window(widget), cr);
// A strong reference is already held during "draw" signal emission,
// but GTK+ 3.4 wants the object to live a little longer than that
// (bug 1225970).
g_object_ref(widget);
g_idle_add(
[](gpointer data) -> gboolean {
g_object_unref(data);
return G_SOURCE_REMOVE;
},
widget);
return FALSE;
}
static gboolean configure_event_cb(GtkWidget* widget,
GdkEventConfigure* event) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(widget);
if (!window) {
return FALSE;
}
return window->OnConfigureEvent(widget, event);
}
static void size_allocate_cb(GtkWidget* widget, GtkAllocation* allocation) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(widget);
if (!window) {
return;
}
window->OnSizeAllocate(allocation);
}
static void toplevel_window_size_allocate_cb(GtkWidget* widget,
GtkAllocation* allocation) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(widget);
if (!window) {
return;
}
// NOTE(emilio): We need to do this here to override GTK's own opaque region
// setting (which would clobber ours).
window->UpdateOpaqueRegionInternal();
}
static gboolean delete_event_cb(GtkWidget* widget, GdkEventAny* event) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(widget);
if (!window) {
return FALSE;
}
window->OnDeleteEvent();
return TRUE;
}
static gboolean enter_notify_event_cb(GtkWidget* widget,
GdkEventCrossing* event) {
RefPtr<nsWindow> window = get_window_for_gdk_window(event->window);
if (!window) {
return TRUE;
}
// We have stored leave notify - check if it's the correct one and
// fire it before enter notify in such case.
if (sStoredLeaveNotifyEvent) {
auto clearNofityEvent =
MakeScopeExit([&] { sStoredLeaveNotifyEvent = nullptr; });
if (event->x_root == sStoredLeaveNotifyEvent->x_root &&
event->y_root == sStoredLeaveNotifyEvent->y_root &&
window->ApplyEnterLeaveMutterWorkaround()) {
// Enter/Leave notify events has the same coordinates
// and uses know buggy window config.
// Consider it as a bogus one.
return TRUE;
}
RefPtr<nsWindow> leftWindow =
get_window_for_gdk_window(sStoredLeaveNotifyEvent->window);
if (leftWindow) {
leftWindow->OnLeaveNotifyEvent(sStoredLeaveNotifyEvent.get());
}
}
window->OnEnterNotifyEvent(event);
return TRUE;
}
static gboolean leave_notify_event_cb(GtkWidget* widget,
GdkEventCrossing* event) {
RefPtr<nsWindow> window = get_window_for_gdk_window(event->window);
if (!window) {
return TRUE;
}
if (window->ApplyEnterLeaveMutterWorkaround()) {
// The leave event is potentially wrong, don't fire it now but store
// it for further check at enter_notify_event_cb().
sStoredLeaveNotifyEvent.reset(reinterpret_cast<GdkEventCrossing*>(
gdk_event_copy(reinterpret_cast<GdkEvent*>(event))));
} else {
sStoredLeaveNotifyEvent = nullptr;
window->OnLeaveNotifyEvent(event);
}
return TRUE;
}
static nsWindow* GetFirstNSWindowForGDKWindow(GdkWindow* aGdkWindow) {
nsWindow* window;
while (!(window = get_window_for_gdk_window(aGdkWindow))) {
// The event has bubbled to the moz_container widget as passed into each
// caller's *widget parameter, but its corresponding nsWindow is an ancestor
// of the window that we need. Instead, look at event->window and find the
// first ancestor nsWindow of it because event->window may be in a plugin.
aGdkWindow = gdk_window_get_parent(aGdkWindow);
if (!aGdkWindow) {
window = nullptr;
break;
}
}
return window;
}
static gboolean motion_notify_event_cb(GtkWidget* widget,
GdkEventMotion* event) {
UpdateLastInputEventTime(event);
RefPtr<nsWindow> window = GetFirstNSWindowForGDKWindow(event->window);
if (!window) {
return FALSE;
}
window->OnMotionNotifyEvent(event);
return TRUE;
}
static gboolean button_press_event_cb(GtkWidget* widget,
GdkEventButton* event) {
UpdateLastInputEventTime(event);
if (event->button == 2 && !StaticPrefs::widget_gtk_middle_click_enabled()) {
return FALSE;
}
RefPtr<nsWindow> window = GetFirstNSWindowForGDKWindow(event->window);
if (!window) {
return FALSE;
}
window->OnButtonPressEvent(event);
if (GdkIsWaylandDisplay()) {
WaylandDragWorkaround(window, event);
}
return TRUE;
}
static gboolean button_release_event_cb(GtkWidget* widget,
GdkEventButton* event) {
UpdateLastInputEventTime(event);
if (event->button == 2 && !StaticPrefs::widget_gtk_middle_click_enabled()) {
return FALSE;
}
RefPtr<nsWindow> window = GetFirstNSWindowForGDKWindow(event->window);
if (!window) {
return FALSE;
}
window->OnButtonReleaseEvent(event);
return TRUE;
}
static gboolean focus_in_event_cb(GtkWidget* widget, GdkEventFocus* event) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(widget);
if (!window) {
return FALSE;
}
window->OnContainerFocusInEvent(event);
return FALSE;
}
static gboolean focus_out_event_cb(GtkWidget* widget, GdkEventFocus* event) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(widget);
if (!window) {
return FALSE;
}
window->OnContainerFocusOutEvent(event);
return FALSE;
}
#ifdef MOZ_X11
// For long-lived popup windows that don't really take focus themselves but
// may have elements that accept keyboard input when the parent window is
// active, focus is handled specially. These windows include noautohide
// panels. (This special handling is not necessary for temporary popups where
// the keyboard is grabbed.)
//
// Mousing over or clicking on these windows should not cause them to steal
// focus from their parent windows, so, the input field of WM_HINTS is set to
// False to request that the window manager not set the input focus to this
// window. http://tronche.com/gui/x/icccm/sec-4.html#s-4.1.7
//
// However, these windows can still receive WM_TAKE_FOCUS messages from the
// window manager, so they can still detect when the user has indicated that
// they wish to direct keyboard input at these windows. When the window
// manager offers focus to these windows (after a mouse over or click, for
// example), a request to make the parent window active is issued. When the
// parent window becomes active, keyboard events will be received.
static GdkFilterReturn popup_take_focus_filter(GdkXEvent* gdk_xevent,
GdkEvent* event, gpointer data) {
auto* xevent = static_cast<XEvent*>(gdk_xevent);
if (xevent->type != ClientMessage) {
return GDK_FILTER_CONTINUE;
}
XClientMessageEvent& xclient = xevent->xclient;
if (xclient.message_type != gdk_x11_get_xatom_by_name("WM_PROTOCOLS")) {
return GDK_FILTER_CONTINUE;
}
Atom atom = xclient.data.l[0];
if (atom != gdk_x11_get_xatom_by_name("WM_TAKE_FOCUS")) {
return GDK_FILTER_CONTINUE;
}
guint32 timestamp = xclient.data.l[1];
GtkWidget* widget = get_gtk_widget_for_gdk_window(event->any.window);
if (!widget) {
return GDK_FILTER_CONTINUE;
}
GtkWindow* parent = gtk_window_get_transient_for(GTK_WINDOW(widget));
if (!parent) {
return GDK_FILTER_CONTINUE;
}
if (gtk_window_is_active(parent)) {
return GDK_FILTER_REMOVE; // leave input focus on the parent
}
GdkWindow* parent_window = gtk_widget_get_window(GTK_WIDGET(parent));
if (!parent_window) {
return GDK_FILTER_CONTINUE;
}
// In case the parent has not been deiconified.
gdk_window_show_unraised(parent_window);
// Request focus on the parent window.
// Use gdk_window_focus rather than gtk_window_present to avoid
// raising the parent window.
gdk_window_focus(parent_window, timestamp);
return GDK_FILTER_REMOVE;
}
#endif /* MOZ_X11 */
static gboolean key_press_event_cb(GtkWidget* widget, GdkEventKey* event) {
LOGW("key_press_event_cb\n");
UpdateLastInputEventTime(event);
// find the window with focus and dispatch this event to that widget
nsWindow* window = get_window_for_gtk_widget(widget);
if (!window) {
return FALSE;
}
RefPtr<nsWindow> focusWindow = gFocusWindow ? gFocusWindow : window;
#ifdef MOZ_X11
// Keyboard repeat can cause key press events to queue up when there are
// slow event handlers (bug 301029). Throttle these events by removing
// consecutive pending duplicate KeyPress events to the same window.
// We use the event time of the last one.
// Note: GDK calls XkbSetDetectableAutorepeat so that KeyRelease events
// are generated only when the key is physically released.
# define NS_GDKEVENT_MATCH_MASK 0x1FFF // GDK_SHIFT_MASK .. GDK_BUTTON5_MASK
// Our headers undefine X11 KeyPress - let's redefine it here.
# ifndef KeyPress
# define KeyPress 2
# endif
GdkDisplay* gdkDisplay = gtk_widget_get_display(widget);
if (GdkIsX11Display(gdkDisplay)) {
Display* dpy = GDK_DISPLAY_XDISPLAY(gdkDisplay);
while (XPending(dpy)) {
XEvent next_event;
XPeekEvent(dpy, &next_event);
GdkWindow* nextGdkWindow =
gdk_x11_window_lookup_for_display(gdkDisplay, next_event.xany.window);
if (nextGdkWindow != event->window || next_event.type != KeyPress ||
next_event.xkey.keycode != event->hardware_keycode ||
next_event.xkey.state != (event->state & NS_GDKEVENT_MATCH_MASK)) {
break;
}
XNextEvent(dpy, &next_event);
event->time = next_event.xkey.time;
}
}
#endif
return focusWindow->OnKeyPressEvent(event);
}
static gboolean key_release_event_cb(GtkWidget* widget, GdkEventKey* event) {
LOGW("key_release_event_cb\n");
UpdateLastInputEventTime(event);
// find the window with focus and dispatch this event to that widget
nsWindow* window = get_window_for_gtk_widget(widget);
if (!window) {
return FALSE;
}
RefPtr<nsWindow> focusWindow = gFocusWindow ? gFocusWindow : window;
return focusWindow->OnKeyReleaseEvent(event);
}
static gboolean property_notify_event_cb(GtkWidget* aWidget,
GdkEventProperty* aEvent) {
RefPtr<nsWindow> window = get_window_for_gdk_window(aEvent->window);
if (!window) {
return FALSE;
}
return window->OnPropertyNotifyEvent(aWidget, aEvent);
}
static gboolean scroll_event_cb(GtkWidget* widget, GdkEventScroll* event) {
RefPtr<nsWindow> window = GetFirstNSWindowForGDKWindow(event->window);
if (NS_WARN_IF(!window)) {
return FALSE;
}
window->OnScrollEvent(event);
return TRUE;
}
static gboolean visibility_notify_event_cb(GtkWidget* widget,
GdkEventVisibility* event) {
RefPtr<nsWindow> window = get_window_for_gdk_window(event->window);
if (!window) {
return FALSE;
}
window->OnVisibilityNotifyEvent(event->state);
return TRUE;
}
static void hierarchy_changed_cb(GtkWidget* widget,
GtkWidget* previous_toplevel) {
GtkWidget* toplevel = gtk_widget_get_toplevel(widget);
GdkWindowState old_window_state = GDK_WINDOW_STATE_WITHDRAWN;
GdkEventWindowState event;
event.new_window_state = GDK_WINDOW_STATE_WITHDRAWN;
if (GTK_IS_WINDOW(previous_toplevel)) {
g_signal_handlers_disconnect_by_func(
previous_toplevel, FuncToGpointer(window_state_event_cb), widget);
GdkWindow* win = gtk_widget_get_window(previous_toplevel);
if (win) {
old_window_state = gdk_window_get_state(win);
}
}
if (GTK_IS_WINDOW(toplevel)) {
g_signal_connect_swapped(toplevel, "window-state-event",
G_CALLBACK(window_state_event_cb), widget);
GdkWindow* win = gtk_widget_get_window(toplevel);
if (win) {
event.new_window_state = gdk_window_get_state(win);
}
}
event.changed_mask =
static_cast<GdkWindowState>(old_window_state ^ event.new_window_state);
if (event.changed_mask) {
event.type = GDK_WINDOW_STATE;
event.window = nullptr;
event.send_event = TRUE;
window_state_event_cb(widget, &event);
}
}
static gboolean window_state_event_cb(GtkWidget* widget,
GdkEventWindowState* event) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(widget);
if (!window) {
return FALSE;
}
window->OnWindowStateEvent(widget, event);
return FALSE;
}
static void settings_xft_dpi_changed_cb(GtkSettings* gtk_settings,
GParamSpec* pspec, nsWindow* data) {
RefPtr<nsWindow> window = data;
window->OnDPIChanged();
// Even though the window size in screen pixels has not changed,
// nsViewManager stores the dimensions in app units.
// DispatchResized() updates those.
window->DispatchResized();
}
static void check_resize_cb(GtkContainer* container, gpointer user_data) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(GTK_WIDGET(container));
if (!window) {
return;
}
window->OnCheckResize();
}
static void screen_composited_changed_cb(GdkScreen* screen,
gpointer user_data) {
// This callback can run before gfxPlatform::Init() in rare
// cases involving the profile manager. When this happens,
// we have no reason to reset any compositors as graphics
// hasn't been initialized yet.
if (GPUProcessManager::Get()) {
GPUProcessManager::Get()->ResetCompositors();
}
}
static void widget_composited_changed_cb(GtkWidget* widget,
gpointer user_data) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(widget);
if (!window) {
return;
}
window->OnCompositedChanged();
}
static void scale_changed_cb(GtkWidget* widget, GParamSpec* aPSpec,
gpointer aPointer) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(widget);
if (!window) {
return;
}
window->OnScaleChanged(/* aNotify = */ true);
}
static gboolean touch_event_cb(GtkWidget* aWidget, GdkEventTouch* aEvent) {
UpdateLastInputEventTime(aEvent);
RefPtr<nsWindow> window = GetFirstNSWindowForGDKWindow(aEvent->window);
if (!window) {
return FALSE;
}
return window->OnTouchEvent(aEvent);
}
// This function called generic because there is no signal specific to touchpad
// pinch events.
static gboolean generic_event_cb(GtkWidget* widget, GdkEvent* aEvent) {
if (aEvent->type != GDK_TOUCHPAD_PINCH) {
return FALSE;
}
// Using reinterpret_cast because the touchpad_pinch field of GdkEvent is not
// available in GTK+ versions lower than v3.18
GdkEventTouchpadPinch* event =
reinterpret_cast<GdkEventTouchpadPinch*>(aEvent);
RefPtr<nsWindow> window = GetFirstNSWindowForGDKWindow(event->window);
if (!window) {
return FALSE;
}
return window->OnTouchpadPinchEvent(event);
}
//////////////////////////////////////////////////////////////////////
// These are all of our drag and drop operations
void nsWindow::InitDragEvent(WidgetDragEvent& aEvent) {
// set the keyboard modifiers
guint modifierState = KeymapWrapper::GetCurrentModifierState();
KeymapWrapper::InitInputEvent(aEvent, modifierState);
}
static LayoutDeviceIntPoint GetWindowDropPosition(nsWindow* aWindow, int aX,
int aY) {
// Workaround for Bug 1710344
// Caused by Gtk issue https://gitlab.gnome.org/GNOME/gtk/-/issues/4437
if (aWindow->IsWaylandPopup()) {
int tx = 0, ty = 0;
gdk_window_get_position(aWindow->GetToplevelGdkWindow(), &tx, &ty);
aX += tx;
aY += ty;
}
LOGDRAG("WindowDropPosition [%d, %d]", aX, aY);
return aWindow->GdkPointToDevicePixels({aX, aY});
}
gboolean WindowDragMotionHandler(GtkWidget* aWidget,
GdkDragContext* aDragContext, gint aX, gint aY,
guint aTime) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(aWidget);
if (!window || !window->GetGdkWindow()) {
return FALSE;
}
// We're getting aX,aY in mShell coordinates space.
// mContainer is shifted by CSD decorations so translate the coords
// to mContainer space where our content lives.
if (aWidget == window->GetGtkWidget()) {
int x, y;
gdk_window_get_geometry(window->GetGdkWindow(), &x, &y, nullptr, nullptr);
aX -= x;
aY -= y;
}
LOGDRAG("WindowDragMotionHandler target nsWindow [%p]", window.get());
RefPtr<nsDragService> dragService = nsDragService::GetInstance();
NS_ENSURE_TRUE(dragService, FALSE);
nsDragSession* dragSession =
static_cast<nsDragSession*>(dragService->GetCurrentSession(window));
if (!dragSession) {
// This may be the start of an external drag session.
nsIWidget* widget = window;
dragSession =
static_cast<nsDragSession*>(dragService->StartDragSession(widget));
}
NS_ENSURE_TRUE(dragSession, FALSE);
nsDragSession::AutoEventLoop loop(dragSession);
if (!dragSession->ScheduleMotionEvent(
window, aDragContext, GetWindowDropPosition(window, aX, aY), aTime)) {
return FALSE;
}
return TRUE;
}
static gboolean drag_motion_event_cb(GtkWidget* aWidget,
GdkDragContext* aDragContext, gint aX,
gint aY, guint aTime, gpointer aData) {
return WindowDragMotionHandler(aWidget, aDragContext, aX, aY, aTime);
}
void WindowDragLeaveHandler(GtkWidget* aWidget) {
LOGDRAG("WindowDragLeaveHandler()\n");
RefPtr<nsWindow> window = get_window_for_gtk_widget(aWidget);
if (!window) {
LOGDRAG(" Failed - can't find nsWindow!\n");
return;
}
RefPtr<nsDragService> dragService = nsDragService::GetInstance();
nsIWidget* widget = window;
nsDragSession* dragSession =
static_cast<nsDragSession*>(dragService->GetCurrentSession(widget));
if (!dragSession) {
LOGDRAG(" Received dragleave after drag had ended.\n");
return;
}
nsDragSession::AutoEventLoop loop(dragSession);
nsWindow* mostRecentDragWindow = dragSession->GetMostRecentDestWindow();
if (!mostRecentDragWindow) {
// This can happen when the target will not accept a drop. A GTK drag
// source sends the leave message to the destination before the
// drag-failed signal on the source widget, but the leave message goes
// via the X server, and so doesn't get processed at least until the
// event loop runs again.
LOGDRAG(" Failed - GetMostRecentDestWindow()!\n");
return;
}
if (aWidget != window->GetGtkWidget()) {
// When the drag moves between widgets, GTK can send leave signal for
// the old widget after the motion or drop signal for the new widget.
// We'll send the leave event when the motion or drop event is run.
LOGDRAG(" Failed - GtkWidget mismatch!\n");
return;
}
LOGDRAG("WindowDragLeaveHandler nsWindow %p\n", (void*)mostRecentDragWindow);
dragSession->ScheduleLeaveEvent();
}
static void drag_leave_event_cb(GtkWidget* aWidget,
GdkDragContext* aDragContext, guint aTime,
gpointer aData) {
WindowDragLeaveHandler(aWidget);
}
gboolean WindowDragDropHandler(GtkWidget* aWidget, GdkDragContext* aDragContext,
gint aX, gint aY, guint aTime) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(aWidget);
if (!window || !window->GetGdkWindow()) {
return FALSE;
}
// We're getting aX,aY in mShell coordinates space.
// mContainer is shifted by CSD decorations so translate the coords
// to mContainer space where our content lives.
if (aWidget == window->GetGtkWidget()) {
int x, y;
gdk_window_get_geometry(window->GetGdkWindow(), &x, &y, nullptr, nullptr);
aX -= x;
aY -= y;
}
LOGDRAG("WindowDragDropHandler nsWindow [%p]", window.get());
RefPtr<nsDragService> dragService = nsDragService::GetInstance();
nsDragSession* dragSession =
static_cast<nsDragSession*>(dragService->GetCurrentSession(window));
nsDragSession::AutoEventLoop loop(dragSession);
return dragSession->ScheduleDropEvent(
window, aDragContext, GetWindowDropPosition(window, aX, aY), aTime);
}
static gboolean drag_drop_event_cb(GtkWidget* aWidget,
GdkDragContext* aDragContext, gint aX,
gint aY, guint aTime, gpointer aData) {
return WindowDragDropHandler(aWidget, aDragContext, aX, aY, aTime);
}
static void drag_data_received_event_cb(GtkWidget* aWidget,
GdkDragContext* aDragContext, gint aX,
gint aY,
GtkSelectionData* aSelectionData,
guint aInfo, guint aTime,
gpointer aData) {
RefPtr<nsWindow> window = get_window_for_gtk_widget(aWidget);
if (!window) {
return;
}
window->OnDragDataReceivedEvent(aWidget, aDragContext, aX, aY, aSelectionData,
aInfo, aTime, aData);
}
static nsresult initialize_prefs(void) {
if (Preferences::HasUserValue("widget.use-aspect-ratio")) {
gUseAspectRatio = Preferences::GetBool("widget.use-aspect-ratio", true);
} else {
gUseAspectRatio = IsGnomeDesktopEnvironment() || IsKdeDesktopEnvironment();
}
return NS_OK;
}
#ifdef ACCESSIBILITY
void nsWindow::CreateRootAccessible() {
if (!mRootAccessible) {
LOG("nsWindow:: Create Toplevel Accessibility\n");
mRootAccessible = GetRootAccessible();
}
}
void nsWindow::DispatchEventToRootAccessible(uint32_t aEventType) {
if (!a11y::ShouldA11yBeEnabled()) {
return;
}
nsAccessibilityService* accService = GetOrCreateAccService();
if (!accService) {
return;
}
// Get the root document accessible and fire event to it.
a11y::LocalAccessible* acc = GetRootAccessible();
if (acc) {
accService->FireAccessibleEvent(aEventType, acc);
}
}
void nsWindow::DispatchActivateEventAccessible(void) {
DispatchEventToRootAccessible(nsIAccessibleEvent::EVENT_WINDOW_ACTIVATE);
}
void nsWindow::DispatchDeactivateEventAccessible(void) {
DispatchEventToRootAccessible(nsIAccessibleEvent::EVENT_WINDOW_DEACTIVATE);
}
void nsWindow::DispatchMaximizeEventAccessible(void) {
DispatchEventToRootAccessible(nsIAccessibleEvent::EVENT_WINDOW_MAXIMIZE);
}
void nsWindow::DispatchMinimizeEventAccessible(void) {
DispatchEventToRootAccessible(nsIAccessibleEvent::EVENT_WINDOW_MINIMIZE);
}
void nsWindow::DispatchRestoreEventAccessible(void) {
DispatchEventToRootAccessible(nsIAccessibleEvent::EVENT_WINDOW_RESTORE);
}
#endif /* #ifdef ACCESSIBILITY */
void nsWindow::SetInputContext(const InputContext& aContext,
const InputContextAction& aAction) {
if (!mIMContext) {
return;
}
mIMContext->SetInputContext(this, &aContext, &aAction);
}
InputContext nsWindow::GetInputContext() {
InputContext context;
if (!mIMContext) {
context.mIMEState.mEnabled = IMEEnabled::Disabled;
context.mIMEState.mOpen = IMEState::OPEN_STATE_NOT_SUPPORTED;
} else {
context = mIMContext->GetInputContext();
}
return context;
}
TextEventDispatcherListener* nsWindow::GetNativeTextEventDispatcherListener() {
if (NS_WARN_IF(!mIMContext)) {
return nullptr;
}
return mIMContext;
}
bool nsWindow::GetEditCommands(NativeKeyBindingsType aType,
const WidgetKeyboardEvent& aEvent,
nsTArray<CommandInt>& aCommands) {
// Validate the arguments.
if (NS_WARN_IF(!nsIWidget::GetEditCommands(aType, aEvent, aCommands))) {
return false;
}
Maybe<WritingMode> writingMode;
if (aEvent.NeedsToRemapNavigationKey()) {
if (RefPtr<TextEventDispatcher> dispatcher = GetTextEventDispatcher()) {
writingMode = dispatcher->MaybeQueryWritingModeAtSelection();
}
}
NativeKeyBindings* keyBindings = NativeKeyBindings::GetInstance(aType);
keyBindings->GetEditCommands(aEvent, writingMode, aCommands);
return true;
}
already_AddRefed<DrawTarget> nsWindow::StartRemoteDrawingInRegion(
const LayoutDeviceIntRegion& aInvalidRegion, BufferMode* aBufferMode) {
return mSurfaceProvider.StartRemoteDrawingInRegion(aInvalidRegion,
aBufferMode);
}
void nsWindow::EndRemoteDrawingInRegion(
DrawTarget* aDrawTarget, const LayoutDeviceIntRegion& aInvalidRegion) {
mSurfaceProvider.EndRemoteDrawingInRegion(aDrawTarget, aInvalidRegion);
}
bool nsWindow::GetDragInfo(WidgetMouseEvent* aMouseEvent, GdkWindow** aWindow,
gint* aButton, gint* aRootX, gint* aRootY) {
if (aMouseEvent->mButton != MouseButton::ePrimary) {
// we can only begin a move drag with the left mouse button
return false;
}
*aButton = 1;
// get the gdk window for this widget
GdkWindow* gdk_window = mGdkWindow;
if (!gdk_window) {
return false;
}
#ifdef DEBUG
// GDK_IS_WINDOW(...) expands to a statement-expression, and
// statement-expressions are not allowed in template-argument lists. So we
// have to make the MOZ_ASSERT condition indirect.
if (!GDK_IS_WINDOW(gdk_window)) {
MOZ_ASSERT(false, "must really be window");
}
#endif
// find the top-level window
gdk_window = gdk_window_get_toplevel(gdk_window);
MOZ_ASSERT(gdk_window, "gdk_window_get_toplevel should not return null");
*aWindow = gdk_window;
if (!aMouseEvent->mWidget) {
return false;
}
#ifdef MOZ_X11
if (GdkIsX11Display()) {
// Workaround for https://bugzilla.gnome.org/show_bug.cgi?id=789054
// To avoid crashes disable double-click on WM without _NET_WM_MOVERESIZE.
// See _should_perform_ewmh_drag() at gdkwindow-x11.c
// XXXsmaug remove this old hack. gtk should be fixed now.
GdkScreen* screen = gdk_window_get_screen(gdk_window);
GdkAtom atom = gdk_atom_intern("_NET_WM_MOVERESIZE", FALSE);
if (!gdk_x11_screen_supports_net_wm_hint(screen, atom)) {
static TimeStamp lastTimeStamp;
if (lastTimeStamp != aMouseEvent->mTimeStamp) {
lastTimeStamp = aMouseEvent->mTimeStamp;
} else {
return false;
}
}
}
#endif
// FIXME: It would be nice to have the widget position at the time
// of the event, but it's relatively unlikely that the widget has
// moved since the mousedown. (On the other hand, it's quite likely
// that the mouse has moved, which is why we use the mouse position
// from the event.)
LayoutDeviceIntPoint offset = aMouseEvent->mWidget->WidgetToScreenOffset();
*aRootX = aMouseEvent->mRefPoint.x + offset.x;
*aRootY = aMouseEvent->mRefPoint.y + offset.y;
return true;
}
nsIWidget::WindowRenderer* nsWindow::GetWindowRenderer() {
if (mIsDestroyed) {
// Prevent external code from triggering the re-creation of the
// LayerManager/Compositor during shutdown. Just return what we currently
// have, which is most likely null.
return mWindowRenderer;
}
return nsBaseWidget::GetWindowRenderer();
}
void nsWindow::DidGetNonBlankPaint() {
if (mGotNonBlankPaint) {
return;
}
mGotNonBlankPaint = true;
if (!mConfiguredClearColor) {
// Nothing to do, we hadn't overridden the clear color.
mConfiguredClearColor = true;
return;
}
// Reset the clear color set in the expose event to transparent.
GetWindowRenderer()->AsWebRender()->WrBridge()->SendSetDefaultClearColor(
NS_TRANSPARENT);
}
/* nsWindow::SetCompositorWidgetDelegate() sets remote GtkCompositorWidget
* to render into with compositor.
*
* SetCompositorWidgetDelegate(delegate) is called from
* nsBaseWidget::CreateCompositor(), i.e. nsWindow::GetWindowRenderer().
*
* SetCompositorWidgetDelegate(null) is called from
* nsBaseWidget::DestroyCompositor().
*/
void nsWindow::SetCompositorWidgetDelegate(CompositorWidgetDelegate* delegate) {
LOG("nsWindow::SetCompositorWidgetDelegate %p mIsMapped %d "
"mCompositorWidgetDelegate %p\n",
delegate, !!mIsMapped, mCompositorWidgetDelegate);
MOZ_RELEASE_ASSERT(NS_IsMainThread());
if (delegate) {
mCompositorWidgetDelegate = delegate->AsPlatformSpecificDelegate();
MOZ_ASSERT(mCompositorWidgetDelegate,
"nsWindow::SetCompositorWidgetDelegate called with a "
"non-PlatformCompositorWidgetDelegate");
if (mIsMapped) {
ConfigureCompositor();
}
} else {
mCompositorWidgetDelegate = nullptr;
}
}
nsresult nsWindow::SetNonClientMargins(const LayoutDeviceIntMargin& aMargins) {
SetDrawsInTitlebar(aMargins.top == 0);
return NS_OK;
}
bool nsWindow::IsAlwaysUndecoratedWindow() const {
if (mIsPIPWindow || gKioskMode) {
return true;
}
if (mWindowType == WindowType::Dialog &&
mBorderStyle != BorderStyle::Default &&
mBorderStyle != BorderStyle::All &&
!(mBorderStyle & BorderStyle::Title) &&
!(mBorderStyle & BorderStyle::ResizeH)) {
return true;
}
return false;
}
void nsWindow::SetDrawsInTitlebar(bool aState) {
LOG("nsWindow::SetDrawsInTitlebar() State %d mGtkWindowDecoration %d\n",
aState, (int)mGtkWindowDecoration);
if (mGtkWindowDecoration == GTK_DECORATION_NONE ||
aState == mDrawInTitlebar) {
LOG(" already set, quit");
return;
}
if (mUndecorated) {
MOZ_ASSERT(aState, "Unexpected decoration request");
MOZ_ASSERT(!gtk_window_get_decorated(GTK_WINDOW(mShell)));
return;
}
mDrawInTitlebar = aState;
if (mGtkWindowDecoration == GTK_DECORATION_SYSTEM) {
SetWindowDecoration(aState ? BorderStyle::Border : mBorderStyle);
} else if (mGtkWindowDecoration == GTK_DECORATION_CLIENT) {
LOG(" Using CSD mode\n");
if (!gtk_widget_get_realized(GTK_WIDGET(mShell))) {
LOG(" Using CSD mode fast path\n");
gtk_window_set_titlebar(GTK_WINDOW(mShell),
aState ? gtk_fixed_new() : nullptr);
return;
}
/* Window manager does not support GDK_DECOR_BORDER,
* emulate it by CSD.
*
* gtk_window_set_titlebar() works on unrealized widgets only,
* we need to handle mShell carefully here.
* When CSD is enabled mGdkWindow is owned by mContainer which is good
* as we can't delete our mGdkWindow. To make mShell unrealized while
* mContainer is preserved we temporary reparent mContainer to an
* invisible GtkWindow.
*/
bool visible = !mNeedsShow && mIsShown;
if (visible) {
NativeShow(false);
}
// Using GTK_WINDOW_POPUP rather than
// GTK_WINDOW_TOPLEVEL in the hope that POPUP results in less
// initialization and window manager interaction.
GtkWidget* tmpWindow = gtk_window_new(GTK_WINDOW_POPUP);
gtk_widget_realize(tmpWindow);
gtk_widget_reparent(GTK_WIDGET(mContainer), tmpWindow);
gtk_widget_unrealize(GTK_WIDGET(mShell));
// Add a hidden titlebar widget to trigger CSD, but disable the default
// titlebar. GtkFixed is a somewhat random choice for a simple unused
// widget. gtk_window_set_titlebar() takes ownership of the titlebar
// widget.
gtk_window_set_titlebar(GTK_WINDOW(mShell),
aState ? gtk_fixed_new() : nullptr);
/* A workaround for https://bugzilla.gnome.org/show_bug.cgi?id=791081
* gtk_widget_realize() throws:
* "In pixman_region32_init_rect: Invalid rectangle passed"
* when mShell has default 1x1 size.
*/
GtkAllocation allocation = {0, 0, 0, 0};
gtk_widget_get_preferred_width(GTK_WIDGET(mShell), nullptr,
&allocation.width);
gtk_widget_get_preferred_height(GTK_WIDGET(mShell), nullptr,
&allocation.height);
gtk_widget_size_allocate(GTK_WIDGET(mShell), &allocation);
gtk_widget_realize(GTK_WIDGET(mShell));
gtk_widget_reparent(GTK_WIDGET(mContainer), GTK_WIDGET(mShell));
// Label mShell toplevel window so property_notify_event_cb callback
// can find its way home.
g_object_set_data(G_OBJECT(GetToplevelGdkWindow()), "nsWindow", this);
if (AreBoundsSane()) {
GdkRectangle size = DevicePixelsToGdkSizeRoundUp(mBounds.Size());
LOG(" resize to %d x %d\n", size.width, size.height);
gtk_window_resize(GTK_WINDOW(mShell), size.width, size.height);
}
if (visible) {
mNeedsShow = true;
NativeShow(true);
}
gtk_widget_destroy(tmpWindow);
}
if (mTransparencyBitmapForTitlebar) {
if (mDrawInTitlebar && mSizeMode == nsSizeMode_Normal && !mIsTiled) {
UpdateTitlebarTransparencyBitmap();
} else {
ClearTransparencyBitmap();
}
}
// Recompute the input region (which should generally be null, but this is
// enough to work around bug 1844497, which is probably a gtk bug).
SetInputRegion(mInputRegion);
}
GtkWindow* nsWindow::GetCurrentTopmostWindow() const {
GtkWindow* parentWindow = GTK_WINDOW(GetGtkWidget());
GtkWindow* topmostParentWindow = nullptr;
while (parentWindow) {
topmostParentWindow = parentWindow;
parentWindow = gtk_window_get_transient_for(parentWindow);
}
return topmostParentWindow;
}
gint nsWindow::GdkCeiledScaleFactor() {
if (IsTopLevelWindowType()) {
return mCeiledScaleFactor;
}
if (nsWindow* topmost = GetTopmostWindow()) {
return topmost->mCeiledScaleFactor;
}
return ScreenHelperGTK::GetGTKMonitorScaleFactor();
}
double nsWindow::FractionalScaleFactor() {
#ifdef MOZ_WAYLAND
double fractional_scale = [&] {
if (IsTopLevelWindowType()) {
return mFractionalScaleFactor;
}
if (nsWindow* topmost = GetTopmostWindow()) {
return topmost->mFractionalScaleFactor;
}
return 0.0;
}();
if (fractional_scale != 0.0) {
return fractional_scale;
}
#endif
return GdkCeiledScaleFactor();
}
gint nsWindow::DevicePixelsToGdkCoordRoundUp(int aPixels) {
double scale = FractionalScaleFactor();
return ceil(aPixels / scale);
}
gint nsWindow::DevicePixelsToGdkCoordRoundDown(int aPixels) {
double scale = FractionalScaleFactor();
return floor(aPixels / scale);
}
GdkPoint nsWindow::DevicePixelsToGdkPointRoundDown(
const LayoutDeviceIntPoint& aPoint) {
double scale = FractionalScaleFactor();
return {int(aPoint.x / scale), int(aPoint.y / scale)};
}
GdkRectangle nsWindow::DevicePixelsToGdkRectRoundOut(
const LayoutDeviceIntRect& aRect) {
double scale = FractionalScaleFactor();
int x = floor(aRect.x / scale);
int y = floor(aRect.y / scale);
int right = ceil((aRect.x + aRect.width) / scale);
int bottom = ceil((aRect.y + aRect.height) / scale);
return {x, y, right - x, bottom - y};
}
GdkRectangle nsWindow::DevicePixelsToGdkRectRoundIn(
const LayoutDeviceIntRect& aRect) {
double scale = FractionalScaleFactor();
int x = ceil(aRect.x / scale);
int y = ceil(aRect.y / scale);
int right = floor((aRect.x + aRect.width) / scale);
int bottom = floor((aRect.y + aRect.height) / scale);
return {x, y, std::max(right - x, 0), std::max(bottom - y, 0)};
}
GdkRectangle nsWindow::DevicePixelsToGdkSizeRoundUp(
const LayoutDeviceIntSize& aSize) {
double scale = FractionalScaleFactor();
gint width = ceil(aSize.width / scale);
gint height = ceil(aSize.height / scale);
return {0, 0, width, height};
}
int nsWindow::GdkCoordToDevicePixels(gint aCoord) {
return (int)(aCoord * FractionalScaleFactor());
}
LayoutDeviceIntPoint nsWindow::GdkEventCoordsToDevicePixels(gdouble aX,
gdouble aY) {
double scale = FractionalScaleFactor();
return LayoutDeviceIntPoint::Floor((float)(aX * scale), (float)(aY * scale));
}
LayoutDeviceIntPoint nsWindow::GdkPointToDevicePixels(const GdkPoint& aPoint) {
double scale = FractionalScaleFactor();
return LayoutDeviceIntPoint::Floor((float)(aPoint.x * scale),
(float)(aPoint.y * scale));
}
LayoutDeviceIntRect nsWindow::GdkRectToDevicePixels(const GdkRectangle& aRect) {
double scale = FractionalScaleFactor();
return LayoutDeviceIntRect::RoundIn(
(float)(aRect.x * scale), (float)(aRect.y * scale),
(float)(aRect.width * scale), (float)(aRect.height * scale));
}
nsresult nsWindow::SynthesizeNativeMouseEvent(
LayoutDeviceIntPoint aPoint, NativeMouseMessage aNativeMessage,
MouseButton aButton, nsIWidget::Modifiers aModifierFlags,
nsIObserver* aObserver) {
LOG("SynthesizeNativeMouseEvent(%d, %d, %d, %d, %d)", aPoint.x.value,
aPoint.y.value, int(aNativeMessage), int(aButton), int(aModifierFlags));
AutoObserverNotifier notifier(aObserver, "mouseevent");
if (!mGdkWindow) {
return NS_OK;
}
// When a button-press/release event is requested, create it here and put it
// in the event queue. This will not emit a motion event - this needs to be
// done explicitly *before* requesting a button-press/release. You will also
// need to wait for the motion event to be dispatched before requesting a
// button-press/release event to maintain the desired event order.
switch (aNativeMessage) {
case NativeMouseMessage::ButtonDown:
case NativeMouseMessage::ButtonUp: {
GdkEvent event;
memset(&event, 0, sizeof(GdkEvent));
event.type = aNativeMessage == NativeMouseMessage::ButtonDown
? GDK_BUTTON_PRESS
: GDK_BUTTON_RELEASE;
switch (aButton) {
case MouseButton::ePrimary:
case MouseButton::eMiddle:
case MouseButton::eSecondary:
case MouseButton::eX1:
case MouseButton::eX2:
event.button.button = aButton + 1;
break;
default:
return NS_ERROR_INVALID_ARG;
}
event.button.state =
KeymapWrapper::ConvertWidgetModifierToGdkState(aModifierFlags);
event.button.window = mGdkWindow;
event.button.time = GDK_CURRENT_TIME;
// Get device for event source
event.button.device = GdkGetPointer();
event.button.x_root = DevicePixelsToGdkCoordRoundDown(aPoint.x);
event.button.y_root = DevicePixelsToGdkCoordRoundDown(aPoint.y);
LayoutDeviceIntPoint pointInWindow = aPoint - WidgetToScreenOffset();
event.button.x = DevicePixelsToGdkCoordRoundDown(pointInWindow.x);
event.button.y = DevicePixelsToGdkCoordRoundDown(pointInWindow.y);
gdk_event_put(&event);
return NS_OK;
}
case NativeMouseMessage::Move: {
// We don't support specific events other than button-press/release. In
// all other cases we'll synthesize a motion event that will be emitted by
// gdk_display_warp_pointer().
// XXX How to activate native modifier for the other events?
#ifdef MOZ_WAYLAND
// Impossible to warp the pointer on Wayland.
// For pointer lock, pointer-constraints and relative-pointer are used.
if (GdkIsWaylandDisplay()) {
return NS_OK;
}
#endif
GdkScreen* screen = gdk_window_get_screen(mGdkWindow);
GdkPoint point = DevicePixelsToGdkPointRoundDown(aPoint);
gdk_device_warp(GdkGetPointer(), screen, point.x, point.y);
return NS_OK;
}
case NativeMouseMessage::EnterWindow:
case NativeMouseMessage::LeaveWindow:
MOZ_ASSERT_UNREACHABLE("Non supported mouse event on Linux");
return NS_ERROR_INVALID_ARG;
}
return NS_ERROR_UNEXPECTED;
}
void nsWindow::CreateAndPutGdkScrollEvent(mozilla::LayoutDeviceIntPoint aPoint,
double aDeltaX, double aDeltaY) {
GdkEvent event;
memset(&event, 0, sizeof(GdkEvent));
event.type = GDK_SCROLL;
event.scroll.window = mGdkWindow;
event.scroll.time = GDK_CURRENT_TIME;
// Get device for event source
GdkDisplay* display = gdk_window_get_display(mGdkWindow);
GdkDeviceManager* device_manager = gdk_display_get_device_manager(display);
// See note in nsWindow::SynthesizeNativeTouchpadPan about the device we use
// here.
event.scroll.device = gdk_device_manager_get_client_pointer(device_manager);
event.scroll.x_root = DevicePixelsToGdkCoordRoundDown(aPoint.x);
event.scroll.y_root = DevicePixelsToGdkCoordRoundDown(aPoint.y);
LayoutDeviceIntPoint pointInWindow = aPoint - WidgetToScreenOffset();
event.scroll.x = DevicePixelsToGdkCoordRoundDown(pointInWindow.x);
event.scroll.y = DevicePixelsToGdkCoordRoundDown(pointInWindow.y);
// The delta values are backwards on Linux compared to Windows and Cocoa,
// hence the negation.
event.scroll.direction = GDK_SCROLL_SMOOTH;
event.scroll.delta_x = -aDeltaX;
event.scroll.delta_y = -aDeltaY;
gdk_event_put(&event);
}
nsresult nsWindow::SynthesizeNativeMouseScrollEvent(
mozilla::LayoutDeviceIntPoint aPoint, uint32_t aNativeMessage,
double aDeltaX, double aDeltaY, double aDeltaZ, uint32_t aModifierFlags,
uint32_t aAdditionalFlags, nsIObserver* aObserver) {
AutoObserverNotifier notifier(aObserver, "mousescrollevent");
if (!mGdkWindow) {
return NS_OK;
}
CreateAndPutGdkScrollEvent(aPoint, aDeltaX, aDeltaY);
return NS_OK;
}
nsresult nsWindow::SynthesizeNativeTouchPoint(uint32_t aPointerId,
TouchPointerState aPointerState,
LayoutDeviceIntPoint aPoint,
double aPointerPressure,
uint32_t aPointerOrientation,
nsIObserver* aObserver) {
AutoObserverNotifier notifier(aObserver, "touchpoint");
if (!mGdkWindow) {
return NS_OK;
}
GdkEvent event;
memset(&event, 0, sizeof(GdkEvent));
static std::map<uint32_t, GdkEventSequence*> sKnownPointers;
auto result = sKnownPointers.find(aPointerId);
switch (aPointerState) {
case TOUCH_CONTACT:
if (result == sKnownPointers.end()) {
// GdkEventSequence isn't a thing we can instantiate, and never gets
// dereferenced in the gtk code. It's an opaque pointer, the only
// requirement is that it be distinct from other instances of
// GdkEventSequence*.
event.touch.sequence = (GdkEventSequence*)((uintptr_t)aPointerId);
sKnownPointers[aPointerId] = event.touch.sequence;
event.type = GDK_TOUCH_BEGIN;
} else {
event.touch.sequence = result->second;
event.type = GDK_TOUCH_UPDATE;
}
break;
case TOUCH_REMOVE:
event.type = GDK_TOUCH_END;
if (result == sKnownPointers.end()) {
NS_WARNING("Tried to synthesize touch-end for unknown pointer!");
return NS_ERROR_UNEXPECTED;
}
event.touch.sequence = result->second;
sKnownPointers.erase(result);
break;
case TOUCH_CANCEL:
event.type = GDK_TOUCH_CANCEL;
if (result == sKnownPointers.end()) {
NS_WARNING("Tried to synthesize touch-cancel for unknown pointer!");
return NS_ERROR_UNEXPECTED;
}
event.touch.sequence = result->second;
sKnownPointers.erase(result);
break;
case TOUCH_HOVER:
default:
return NS_ERROR_NOT_IMPLEMENTED;
}
event.touch.window = mGdkWindow;
event.touch.time = GDK_CURRENT_TIME;
GdkDisplay* display = gdk_window_get_display(mGdkWindow);
GdkDeviceManager* device_manager = gdk_display_get_device_manager(display);
event.touch.device = gdk_device_manager_get_client_pointer(device_manager);
event.touch.x_root = DevicePixelsToGdkCoordRoundDown(aPoint.x);
event.touch.y_root = DevicePixelsToGdkCoordRoundDown(aPoint.y);
LayoutDeviceIntPoint pointInWindow = aPoint - WidgetToScreenOffset();
event.touch.x = DevicePixelsToGdkCoordRoundDown(pointInWindow.x);
event.touch.y = DevicePixelsToGdkCoordRoundDown(pointInWindow.y);
gdk_event_put(&event);
return NS_OK;
}
nsresult nsWindow::SynthesizeNativeTouchPadPinch(
TouchpadGesturePhase aEventPhase, float aScale, LayoutDeviceIntPoint aPoint,
int32_t aModifierFlags) {
if (!mGdkWindow) {
return NS_OK;
}
GdkEvent event;
memset(&event, 0, sizeof(GdkEvent));
GdkEventTouchpadPinch* touchpad_event =
reinterpret_cast<GdkEventTouchpadPinch*>(&event);
touchpad_event->type = GDK_TOUCHPAD_PINCH;
const ScreenIntPoint widgetToScreenOffset = ViewAs<ScreenPixel>(
WidgetToScreenOffset(),
PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent);
ScreenPoint pointInWindow =
ViewAs<ScreenPixel>(
aPoint,
PixelCastJustification::LayoutDeviceIsScreenForUntransformedEvent) -
widgetToScreenOffset;
gdouble dx = 0, dy = 0;
switch (aEventPhase) {
case PHASE_BEGIN:
touchpad_event->phase = GDK_TOUCHPAD_GESTURE_PHASE_BEGIN;
mCurrentSynthesizedTouchpadPinch = {pointInWindow, pointInWindow};
break;
case PHASE_UPDATE:
dx = pointInWindow.x - mCurrentSynthesizedTouchpadPinch.mCurrentFocus.x;
dy = pointInWindow.y - mCurrentSynthesizedTouchpadPinch.mCurrentFocus.y;
mCurrentSynthesizedTouchpadPinch.mCurrentFocus = pointInWindow;
touchpad_event->phase = GDK_TOUCHPAD_GESTURE_PHASE_UPDATE;
break;
case PHASE_END:
touchpad_event->phase = GDK_TOUCHPAD_GESTURE_PHASE_END;
break;
default:
return NS_ERROR_NOT_IMPLEMENTED;
}
touchpad_event->window = mGdkWindow;
// We only set the fields of GdkEventTouchpadPinch which are
// actually used in OnTouchpadPinchEvent().
// GdkEventTouchpadPinch has additional fields.
// If OnTouchpadPinchEvent() is changed to use other fields, this function
// will need to change to set them as well.
touchpad_event->time = GDK_CURRENT_TIME;
touchpad_event->scale = aScale;
touchpad_event->x_root = DevicePixelsToGdkCoordRoundDown(
mCurrentSynthesizedTouchpadPinch.mBeginFocus.x +
ScreenCoord(widgetToScreenOffset.x));
touchpad_event->y_root = DevicePixelsToGdkCoordRoundDown(
mCurrentSynthesizedTouchpadPinch.mBeginFocus.y +
ScreenCoord(widgetToScreenOffset.y));
touchpad_event->x = DevicePixelsToGdkCoordRoundDown(
mCurrentSynthesizedTouchpadPinch.mBeginFocus.x);
touchpad_event->y = DevicePixelsToGdkCoordRoundDown(
mCurrentSynthesizedTouchpadPinch.mBeginFocus.y);
touchpad_event->dx = dx;
touchpad_event->dy = dy;
touchpad_event->state = aModifierFlags;
gdk_event_put(&event);
return NS_OK;
}
nsresult nsWindow::SynthesizeNativeTouchpadPan(TouchpadGesturePhase aEventPhase,
LayoutDeviceIntPoint aPoint,
double aDeltaX, double aDeltaY,
int32_t aModifierFlags,
nsIObserver* aObserver) {
AutoObserverNotifier notifier(aObserver, "touchpadpanevent");
if (!mGdkWindow) {
return NS_OK;
}
// This should/could maybe send GdkEventTouchpadSwipe events, however we don't
// currently consume those (either real user input or testing events). So we
// send gdk scroll events to be more like what we do for real user input. If
// we start consuming GdkEventTouchpadSwipe and get those hooked up to swipe
// to nav, then maybe we should test those too.
mCurrentSynthesizedTouchpadPan.mTouchpadGesturePhase = Some(aEventPhase);
MOZ_ASSERT(mCurrentSynthesizedTouchpadPan.mSavedObserver == 0);
mCurrentSynthesizedTouchpadPan.mSavedObserver = notifier.SaveObserver();
// Note that CreateAndPutGdkScrollEvent sets the device source for the created
// event as the "client pointer" (a kind of default device) which will
// probably be of type mouse. We would ideally want to set the device of the
// created event to be a touchpad, but the system might not have a touchpad.
// To get around this we use
// mCurrentSynthesizedTouchpadPan.mTouchpadGesturePhase being something to
// indicate that we should treat the source of the event as touchpad in
// OnScrollEvent.
CreateAndPutGdkScrollEvent(aPoint, aDeltaX, aDeltaY);
return NS_OK;
}
nsWindow::GtkWindowDecoration nsWindow::GetSystemGtkWindowDecoration() {
static GtkWindowDecoration sGtkWindowDecoration = [] {
// Allow MOZ_GTK_TITLEBAR_DECORATION to override our heuristics
if (const char* decorationOverride =
getenv("MOZ_GTK_TITLEBAR_DECORATION")) {
if (strcmp(decorationOverride, "none") == 0) {
return GTK_DECORATION_NONE;
}
if (strcmp(decorationOverride, "client") == 0) {
return GTK_DECORATION_CLIENT;
}
if (strcmp(decorationOverride, "system") == 0) {
return GTK_DECORATION_SYSTEM;
}
}
// nsWindow::GetSystemGtkWindowDecoration can be called from various
// threads so we can't use gfxPlatformGtk here.
if (GdkIsWaylandDisplay()) {
return GTK_DECORATION_CLIENT;
}
// GTK_CSD forces CSD mode - use also CSD because window manager
// decorations does not work with CSD.
// We check GTK_CSD as well as gtk_window_should_use_csd() does.
if (const char* csdOverride = getenv("GTK_CSD")) {
return *csdOverride == '0' ? GTK_DECORATION_NONE : GTK_DECORATION_CLIENT;
}
// TODO: Consider switching this to GetDesktopEnvironmentIdentifier().
const char* currentDesktop = getenv("XDG_CURRENT_DESKTOP");
if (!currentDesktop) {
return GTK_DECORATION_NONE;
}
if (strstr(currentDesktop, "i3")) {
return GTK_DECORATION_NONE;
}
// Tested desktops: pop:GNOME, KDE, Enlightenment, LXDE, openbox, MATE,
// X-Cinnamon, Pantheon, Deepin, GNOME, LXQt, Unity.
return GTK_DECORATION_CLIENT;
}();
return sGtkWindowDecoration;
}
bool nsWindow::TitlebarUseShapeMask() {
static int useShapeMask = []() {
// Don't use titlebar shape mask on Wayland
if (!GdkIsX11Display()) {
return false;
}
// We can't use shape masks on Mutter/X.org as we can't resize Firefox
// window there (Bug 1530252).
if (IsGnomeDesktopEnvironment()) {
return false;
}
return Preferences::GetBool("widget.titlebar-x11-use-shape-mask", false);
}();
return useShapeMask;
}
int32_t nsWindow::RoundsWidgetCoordinatesTo() { return GdkCeiledScaleFactor(); }
void nsWindow::GetCompositorWidgetInitData(
mozilla::widget::CompositorWidgetInitData* aInitData) {
nsCString displayName;
LOG("nsWindow::GetCompositorWidgetInitData");
Window window = GetX11Window();
#ifdef MOZ_X11
// We're bit hackish here. Old GLX backend needs XWindow when GLContext
// is created so get XWindow now before map signal.
// We may see crashes/errors when nsWindow is unmapped (XWindow is
// invalidated) but we can't do anything about it.
if (!window && !gfxVars::UseEGL()) {
window =
gdk_x11_window_get_xid(gtk_widget_get_window(GTK_WIDGET(mContainer)));
}
#endif
*aInitData = mozilla::widget::GtkCompositorWidgetInitData(
window, displayName, GetShapedState(), GdkIsX11Display(),
GetClientSize());
#ifdef MOZ_X11
if (GdkIsX11Display()) {
// Make sure the window XID is propagated to X server, we can fail otherwise
// in GPU process (Bug 1401634).
Display* display = DefaultXDisplay();
XFlush(display);
displayName = nsCString(XDisplayString(display));
}
#endif
}
#ifdef MOZ_X11
/* XApp progress support currently works by setting a property
* on a window with this Atom name. A supporting window manager
* will notice this and pass it along to whatever handling has
* been implemented on that end (e.g. passing it on to a taskbar
* widget.) There is no issue if WM support is lacking, this is
* simply ignored in that case.
*
* See https://github.com/linuxmint/xapps/blob/master/libxapp/xapp-gtk-window.c
* for further details.
*/
# define PROGRESS_HINT "_NET_WM_XAPP_PROGRESS"
static void set_window_hint_cardinal(Window xid, const gchar* atom_name,
gulong cardinal) {
GdkDisplay* display;
display = gdk_display_get_default();
if (cardinal > 0) {
XChangeProperty(GDK_DISPLAY_XDISPLAY(display), xid,
gdk_x11_get_xatom_by_name_for_display(display, atom_name),
XA_CARDINAL, 32, PropModeReplace, (guchar*)&cardinal, 1);
} else {
XDeleteProperty(GDK_DISPLAY_XDISPLAY(display), xid,
gdk_x11_get_xatom_by_name_for_display(display, atom_name));
}
}
#endif // MOZ_X11
void nsWindow::SetProgress(unsigned long progressPercent) {
#ifdef MOZ_X11
if (!GdkIsX11Display()) {
return;
}
if (!mShell) {
return;
}
progressPercent = MIN(progressPercent, 100);
set_window_hint_cardinal(GDK_WINDOW_XID(GetToplevelGdkWindow()),
PROGRESS_HINT, progressPercent);
#endif // MOZ_X11
}
#ifdef MOZ_X11
void nsWindow::SetCompositorHint(WindowComposeRequest aState) {
if (!GdkIsX11Display()) {
return;
}
gulong value = aState;
GdkAtom cardinal_atom = gdk_x11_xatom_to_atom(XA_CARDINAL);
gdk_property_change(GetToplevelGdkWindow(),
gdk_atom_intern("_NET_WM_BYPASS_COMPOSITOR", FALSE),
cardinal_atom,
32, // format
GDK_PROP_MODE_REPLACE, (guchar*)&value, 1);
}
#endif
nsresult nsWindow::SetSystemFont(const nsCString& aFontName) {
GtkSettings* settings = gtk_settings_get_default();
g_object_set(settings, "gtk-font-name", aFontName.get(), nullptr);
return NS_OK;
}
nsresult nsWindow::GetSystemFont(nsCString& aFontName) {
GtkSettings* settings = gtk_settings_get_default();
gchar* fontName = nullptr;
g_object_get(settings, "gtk-font-name", &fontName, nullptr);
if (fontName) {
aFontName.Assign(fontName);
g_free(fontName);
}
return NS_OK;
}
already_AddRefed<nsIWidget> nsIWidget::CreateTopLevelWindow() {
nsCOMPtr<nsIWidget> window = new nsWindow();
return window.forget();
}
already_AddRefed<nsIWidget> nsIWidget::CreateChildWindow() {
nsCOMPtr<nsIWidget> window = new nsWindow();
return window.forget();
}
#ifdef MOZ_WAYLAND
static void relative_pointer_handle_relative_motion(
void* data, struct zwp_relative_pointer_v1* pointer, uint32_t time_hi,
uint32_t time_lo, wl_fixed_t dx_w, wl_fixed_t dy_w, wl_fixed_t dx_unaccel_w,
wl_fixed_t dy_unaccel_w) {
RefPtr<nsWindow> window(reinterpret_cast<nsWindow*>(data));
WidgetMouseEvent event(true, eMouseMove, window, WidgetMouseEvent::eReal);
double scale = window->FractionalScaleFactor();
event.mRefPoint = window->GetNativePointerLockCenter();
event.mRefPoint.x += int(wl_fixed_to_double(dx_w) * scale);
event.mRefPoint.y += int(wl_fixed_to_double(dy_w) * scale);
event.AssignEventTime(window->GetWidgetEventTime(time_lo));
window->DispatchInputEvent(&event);
}
static const struct zwp_relative_pointer_v1_listener relative_pointer_listener =
{
relative_pointer_handle_relative_motion,
};
void nsWindow::SetNativePointerLockCenter(
const LayoutDeviceIntPoint& aLockCenter) {
mNativePointerLockCenter = aLockCenter;
}
void nsWindow::LockNativePointer() {
if (!GdkIsWaylandDisplay()) {
return;
}
auto* waylandDisplay = WaylandDisplayGet();
auto* pointerConstraints = waylandDisplay->GetPointerConstraints();
if (!pointerConstraints) {
return;
}
auto* relativePointerMgr = waylandDisplay->GetRelativePointerManager();
if (!relativePointerMgr) {
return;
}
GdkDisplay* display = gdk_display_get_default();
GdkDeviceManager* manager = gdk_display_get_device_manager(display);
MOZ_ASSERT(manager);
GdkDevice* device = gdk_device_manager_get_client_pointer(manager);
if (!device) {
NS_WARNING("Could not find Wayland pointer to lock");
return;
}
wl_pointer* pointer = gdk_wayland_device_get_wl_pointer(device);
MOZ_ASSERT(pointer);
wl_surface* surface =
gdk_wayland_window_get_wl_surface(GetToplevelGdkWindow());
if (!surface) {
/* Can be null when the window is hidden.
* Though it's unlikely that a lock request comes in that case, be
* defensive. */
return;
}
UnlockNativePointer();
mLockedPointer = zwp_pointer_constraints_v1_lock_pointer(
pointerConstraints, surface, pointer, nullptr,
ZWP_POINTER_CONSTRAINTS_V1_LIFETIME_PERSISTENT);
if (!mLockedPointer) {
NS_WARNING("Could not lock Wayland pointer");
return;
}
mRelativePointer = zwp_relative_pointer_manager_v1_get_relative_pointer(
relativePointerMgr, pointer);
if (!mRelativePointer) {
NS_WARNING("Could not create relative Wayland pointer");
zwp_locked_pointer_v1_destroy(mLockedPointer);
mLockedPointer = nullptr;
return;
}
zwp_relative_pointer_v1_add_listener(mRelativePointer,
&relative_pointer_listener, this);
}
void nsWindow::UnlockNativePointer() {
if (mRelativePointer) {
zwp_relative_pointer_v1_destroy(mRelativePointer);
mRelativePointer = nullptr;
}
if (mLockedPointer) {
zwp_locked_pointer_v1_destroy(mLockedPointer);
mLockedPointer = nullptr;
}
}
#endif
static nsIFrame* FindTitlebarFrame(nsIFrame* aFrame) {
for (nsIFrame* childFrame : aFrame->PrincipalChildList()) {
StyleAppearance appearance =
childFrame->StyleDisplay()->EffectiveAppearance();
if (appearance == StyleAppearance::MozWindowTitlebar ||
appearance == StyleAppearance::MozWindowTitlebarMaximized) {
return childFrame;
}
if (nsIFrame* foundFrame = FindTitlebarFrame(childFrame)) {
return foundFrame;
}
}
return nullptr;
}
nsIFrame* nsWindow::GetFrame() const {
nsView* view = nsView::GetViewFor(this);
if (!view) {
return nullptr;
}
return view->GetFrame();
}
void nsWindow::UpdateMozWindowActive() {
// Update activation state for the :-moz-window-inactive pseudoclass.
// Normally, this follows focus; we override it here to follow
// GDK_WINDOW_STATE_FOCUSED.
if (mozilla::dom::Document* document = GetDocument()) {
if (nsPIDOMWindowOuter* window = document->GetWindow()) {
if (RefPtr<mozilla::dom::BrowsingContext> bc =
window->GetBrowsingContext()) {
bc->SetIsActiveBrowserWindow(!mTitlebarBackdropState);
}
}
}
}
void nsWindow::ForceTitlebarRedraw() {
MOZ_ASSERT(mDrawInTitlebar, "We should not redraw invisible titlebar.");
if (!mWidgetListener || !mWidgetListener->GetPresShell()) {
return;
}
nsIFrame* frame = GetFrame();
if (!frame) {
return;
}
frame = FindTitlebarFrame(frame);
if (frame) {
nsIContent* content = frame->GetContent();
if (content) {
nsLayoutUtils::PostRestyleEvent(content->AsElement(), RestyleHint{0},
nsChangeHint_RepaintFrame);
}
}
}
void nsWindow::LockAspectRatio(bool aShouldLock) {
if (!gUseAspectRatio) {
return;
}
if (aShouldLock) {
int decWidth = 0, decHeight = 0;
AddCSDDecorationSize(&decWidth, &decHeight);
float width =
DevicePixelsToGdkCoordRoundDown(mLastSizeRequest.width) + decWidth;
float height =
DevicePixelsToGdkCoordRoundDown(mLastSizeRequest.height) + decHeight;
mAspectRatio = width / height;
LOG("nsWindow::LockAspectRatio() width %f height %f aspect %f", width,
height, mAspectRatio);
} else {
mAspectRatio = 0.0;
LOG("nsWindow::LockAspectRatio() removed aspect ratio");
}
ApplySizeConstraints();
}
nsWindow* nsWindow::GetFocusedWindow() { return gFocusWindow; }
#ifdef MOZ_WAYLAND
bool nsWindow::SetEGLNativeWindowSize(
const LayoutDeviceIntSize& aEGLWindowSize) {
if (!GdkIsWaylandDisplay() || !mIsMapped) {
return true;
}
if (mCompositorState == COMPOSITOR_PAUSED_FLICKERING) {
LOG("nsWindow::SetEGLNativeWindowSize() return, "
"COMPOSITOR_PAUSED_FLICKERING is set");
return false;
}
gint scale = GdkCeiledScaleFactor();
# ifdef MOZ_LOGGING
if (LOG_ENABLED()) {
static uintptr_t lastSizeLog = 0;
uintptr_t sizeLog =
uintptr_t(this) + aEGLWindowSize.width + aEGLWindowSize.height + scale +
aEGLWindowSize.width / scale + aEGLWindowSize.height / scale;
if (lastSizeLog != sizeLog) {
lastSizeLog = sizeLog;
LOG("nsWindow::SetEGLNativeWindowSize() %d x %d scale %d (unscaled "
"%d x %d)",
aEGLWindowSize.width, aEGLWindowSize.height, scale,
aEGLWindowSize.width / scale, aEGLWindowSize.height / scale);
}
}
# endif
return moz_container_wayland_egl_window_set_size(
mContainer, aEGLWindowSize.ToUnknownSize(), scale);
}
#endif
nsWindow* nsWindow::GetWindow(GdkWindow* window) {
return get_window_for_gdk_window(window);
}
void nsWindow::ClearRenderingQueue() {
LOG("nsWindow::ClearRenderingQueue()");
if (mWidgetListener) {
mWidgetListener->RequestWindowClose(this);
}
DestroyLayerManager();
}
// nsWindow::OnMap() / nsWindow::OnUnmap() is called from map/unmap mContainer
// handlers directly as we paint to mContainer.
void nsWindow::OnMap() {
LOG("nsWindow::OnMap");
{
MutexAutoLock lock(mWindowVisibilityMutex);
mIsMapped = true;
EnsureGdkWindow();
OnScaleChanged(/* aNotify = */ false);
if (mIsAlert) {
gdk_window_set_override_redirect(mGdkWindow, TRUE);
}
#ifdef MOZ_X11
if (GdkIsX11Display()) {
mSurfaceProvider.Initialize(GetX11Window(), GetShapedState());
// Set window manager hint to keep fullscreen windows composited.
//
// If the window were to get unredirected, there could be visible
// tearing because Gecko does not align its framebuffer updates with
// vblank.
SetCompositorHint(GTK_WIDGET_COMPOSITED_ENABLED);
}
#endif
#ifdef MOZ_WAYLAND
if (GdkIsWaylandDisplay()) {
mSurfaceProvider.Initialize(this);
}
#endif
}
if (mIsDragPopup) {
if (GdkIsWaylandDisplay()) {
// Disable painting to the widget on Wayland as we paint directly to the
// widget. Wayland compositors does not paint wl_subsurface
// of D&D widget.
if (GtkWidget* parent = gtk_widget_get_parent(mShell)) {
GtkWidgetDisableUpdates(parent);
}
GtkWidgetDisableUpdates(mShell);
GtkWidgetDisableUpdates(GTK_WIDGET(mContainer));
} else {
// Disable rendering of parent container on X11 to avoid flickering.
if (GtkWidget* parent = gtk_widget_get_parent(mShell)) {
gtk_widget_set_opacity(parent, 0.0);
}
}
}
if (mWindowType == WindowType::Popup) {
if (mNoAutoHide) {
gint wmd = ConvertBorderStyles(mBorderStyle);
if (wmd != -1) {
gdk_window_set_decorations(mGdkWindow, (GdkWMDecoration)wmd);
}
}
// If the popup ignores mouse events, set an empty input shape.
SetInputRegion(mInputRegion);
}
RefreshWindowClass();
// We're not mapped yet but we have already created compositor.
if (mCompositorWidgetDelegate) {
ConfigureCompositor();
}
LOG(" finished, new GdkWindow %p XID 0x%lx\n", mGdkWindow, GetX11Window());
}
void nsWindow::OnUnmap() {
LOG("nsWindow::OnUnmap");
{
MutexAutoLock lock(mWindowVisibilityMutex);
mIsMapped = false;
if (mSourceDragContext) {
static auto sGtkDragCancel =
(void (*)(GdkDragContext*))dlsym(RTLD_DEFAULT, "gtk_drag_cancel");
if (sGtkDragCancel) {
sGtkDragCancel(mSourceDragContext);
mSourceDragContext = nullptr;
}
}
if (mGdkWindow) {
g_object_set_data(G_OBJECT(mGdkWindow), "nsWindow", nullptr);
mGdkWindow = nullptr;
}
// Clear resources (mainly XWindow) stored at GtkCompositorWidget.
// It makes sure we don't paint to it when nsWindow becomes hiden/deleted
// and XWindow is released.
if (mCompositorWidgetDelegate) {
mCompositorWidgetDelegate->CleanupResources();
}
// Clear nsWindow resources used for old (in-thread) rendering.
mSurfaceProvider.CleanupResources();
}
// Until Bug 1654938 is fixed we delete layer manager for hidden popups,
// otherwise it can easily hold 1GB+ memory for long time.
if (mWindowType == WindowType::Popup) {
DestroyLayerManager();
} else {
// Widget is backed by OpenGL EGLSurface created over wl_surface/XWindow.
//
// RenderCompositorEGL::Resume() deletes recent EGLSurface,
// calls nsWindow::GetNativeData(NS_NATIVE_EGL_WINDOW) from compositor
// thread to get new native rendering surface.
//
// For hidden/unmapped windows we return nullptr NS_NATIVE_EGL_WINDOW at
// nsWindow::GetNativeData() so RenderCompositorEGL::Resume() creates
// offscreen fallback EGLSurface to avoid compositor pause.
//
// We don't want to pause compositor as it may lead to whole
// browser freeze (Bug 1777664).
//
// If RenderCompositorSWGL compositor is used (SW fallback)
// RenderCompositorSWGL::Resume() only requests full render for next paint
// as wl_surface/XWindow is managed by WindowSurfaceProvider owned
// directly by GtkCompositorWidget and that's covered by
// mCompositorWidgetDelegate->CleanupResources() call above.
if (CompositorBridgeChild* remoteRenderer = GetRemoteRenderer()) {
remoteRenderer->SendResume();
}
}
}
// Apply workaround for Mutter compositor bug (mzbz#1777269).
//
// When we open a popup window (tooltip for instance) attached to
// GDK_WINDOW_TYPE_HINT_UTILITY parent popup, Mutter compositor sends bogus
// leave/enter events to the GDK_WINDOW_TYPE_HINT_UTILITY popup.
// That leads to immediate tooltip close. As a workaround ignore these
// bogus events.
//
// We need to check two affected window types:
//
// - toplevel window with at least two child popups where the first one is
// GDK_WINDOW_TYPE_HINT_UTILITY.
// - GDK_WINDOW_TYPE_HINT_UTILITY popup with a child popup
//
// We need to mask two bogus leave/enter sequences:
// 1) Leave (popup) -> Enter (toplevel)
// 2) Leave (toplevel) -> Enter (popup)
//
// TODO: persistent (non-tracked) popups with tooltip/child popups?
//
bool nsWindow::ApplyEnterLeaveMutterWorkaround() {
// Leave (toplevel) case
if (mWindowType == WindowType::TopLevel && mWaylandPopupNext &&
mWaylandPopupNext->mWaylandPopupNext &&
gtk_window_get_type_hint(GTK_WINDOW(mWaylandPopupNext->GetGtkWidget())) ==
GDK_WINDOW_TYPE_HINT_UTILITY) {
LOG("nsWindow::ApplyEnterLeaveMutterWorkaround(): leave toplevel");
return true;
}
// Leave (popup) case
if (IsWaylandPopup() && mWaylandPopupNext &&
gtk_window_get_type_hint(GTK_WINDOW(mShell)) ==
GDK_WINDOW_TYPE_HINT_UTILITY) {
LOG("nsWindow::ApplyEnterLeaveMutterWorkaround(): leave popup");
return true;
}
return false;
}
void nsWindow::NotifyOcclusionState(OcclusionState aState) {
if (!IsTopLevelWindowType()) {
return;
}
bool isFullyOccluded = aState == OcclusionState::OCCLUDED;
if (mIsFullyOccluded == isFullyOccluded) {
return;
}
mIsFullyOccluded = isFullyOccluded;
LOG("nsWindow::NotifyOcclusionState() mIsFullyOccluded %d", mIsFullyOccluded);
if (mWidgetListener) {
mWidgetListener->OcclusionStateChanged(mIsFullyOccluded);
}
}
void nsWindow::SetDragSource(GdkDragContext* aSourceDragContext) {
mSourceDragContext = aSourceDragContext;
if (IsPopup() &&
(widget::GdkIsWaylandDisplay() || widget::IsXWaylandProtocol())) {
if (auto* menuPopupFrame = GetMenuPopupFrame(GetFrame())) {
menuPopupFrame->SetIsDragSource(!!aSourceDragContext);
}
}
}
