https://github.com/mozilla/gecko-dev
Tip revision: 1c18d06925f1faef679e20f822ecabef2be57bd7 authored by Wes Kocher on 28 February 2014, 01:08:04 UTC
Merge b2g-inbound to m-c
Merge b2g-inbound to m-c
Tip revision: 1c18d06
XPCRuntimeService.cpp
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* 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 "nsContentUtils.h"
#include "BackstagePass.h"
#include "nsIProgrammingLanguage.h"
#include "nsDOMClassInfo.h"
#include "nsIPrincipal.h"
#include "mozilla/dom/workers/Workers.h"
using mozilla::dom::workers::ResolveWorkerClasses;
NS_INTERFACE_MAP_BEGIN(BackstagePass)
NS_INTERFACE_MAP_ENTRY(nsIGlobalObject)
NS_INTERFACE_MAP_ENTRY(nsIXPCScriptable)
NS_INTERFACE_MAP_ENTRY(nsIClassInfo)
NS_INTERFACE_MAP_ENTRY(nsIScriptObjectPrincipal)
NS_INTERFACE_MAP_ENTRY(nsISupportsWeakReference)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIXPCScriptable)
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF(BackstagePass)
NS_IMPL_RELEASE(BackstagePass)
// The nsIXPCScriptable map declaration that will generate stubs for us...
#define XPC_MAP_CLASSNAME BackstagePass
#define XPC_MAP_QUOTED_CLASSNAME "BackstagePass"
#define XPC_MAP_WANT_NEWRESOLVE
#define XPC_MAP_WANT_FINALIZE
#define XPC_MAP_WANT_PRECREATE
#define XPC_MAP_FLAGS nsIXPCScriptable::USE_JSSTUB_FOR_ADDPROPERTY | \
nsIXPCScriptable::USE_JSSTUB_FOR_DELPROPERTY | \
nsIXPCScriptable::USE_JSSTUB_FOR_SETPROPERTY | \
nsIXPCScriptable::DONT_ENUM_STATIC_PROPS | \
nsIXPCScriptable::DONT_ENUM_QUERY_INTERFACE | \
nsIXPCScriptable::IS_GLOBAL_OBJECT | \
nsIXPCScriptable::DONT_REFLECT_INTERFACE_NAMES
#include "xpc_map_end.h" /* This will #undef the above */
/* bool newResolve (in nsIXPConnectWrappedNative wrapper, in JSContextPtr cx, in JSObjectPtr obj, in jsval id, in uint32_t flags, out JSObjectPtr objp); */
NS_IMETHODIMP
BackstagePass::NewResolve(nsIXPConnectWrappedNative *wrapper,
JSContext * cx, JSObject * objArg,
jsid idArg, uint32_t flags,
JSObject * *objpArg, bool *_retval)
{
JS::RootedObject obj(cx, objArg);
JS::RootedId id(cx, idArg);
bool resolved;
*objpArg = nullptr;
*_retval = !!JS_ResolveStandardClass(cx, obj, id, &resolved);
NS_ENSURE_TRUE(*_retval, NS_ERROR_FAILURE);
if (resolved) {
*objpArg = obj;
return NS_OK;
}
JS::RootedObject objp(cx, *objpArg);
*_retval = ResolveWorkerClasses(cx, obj, id, flags, &objp);
NS_ENSURE_TRUE(*_retval, NS_ERROR_FAILURE);
if (objp) {
*objpArg = objp;
return NS_OK;
}
return NS_OK;
}
/***************************************************************************/
/* void getInterfaces (out uint32_t count, [array, size_is (count), retval]
out nsIIDPtr array); */
NS_IMETHODIMP
BackstagePass::GetInterfaces(uint32_t *aCount, nsIID * **aArray)
{
const uint32_t count = 2;
*aCount = count;
nsIID **array;
*aArray = array = static_cast<nsIID**>(nsMemory::Alloc(count * sizeof(nsIID*)));
if (!array)
return NS_ERROR_OUT_OF_MEMORY;
uint32_t index = 0;
nsIID* clone;
#define PUSH_IID(id) \
clone = static_cast<nsIID *>(nsMemory::Clone(&NS_GET_IID( id ), \
sizeof(nsIID))); \
if (!clone) \
goto oom; \
array[index++] = clone;
PUSH_IID(nsIXPCScriptable)
PUSH_IID(nsIScriptObjectPrincipal)
#undef PUSH_IID
return NS_OK;
oom:
while (index)
nsMemory::Free(array[--index]);
nsMemory::Free(array);
*aArray = nullptr;
return NS_ERROR_OUT_OF_MEMORY;
}
/* nsISupports getHelperForLanguage (in uint32_t language); */
NS_IMETHODIMP
BackstagePass::GetHelperForLanguage(uint32_t language,
nsISupports **retval)
{
nsCOMPtr<nsISupports> supports =
do_QueryInterface(static_cast<nsIGlobalObject *>(this));
supports.forget(retval);
return NS_OK;
}
/* readonly attribute string contractID; */
NS_IMETHODIMP
BackstagePass::GetContractID(char * *aContractID)
{
*aContractID = nullptr;
return NS_ERROR_NOT_AVAILABLE;
}
/* readonly attribute string classDescription; */
NS_IMETHODIMP
BackstagePass::GetClassDescription(char * *aClassDescription)
{
static const char classDescription[] = "BackstagePass";
*aClassDescription = (char*)nsMemory::Clone(classDescription, sizeof(classDescription));
return *aClassDescription ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}
/* readonly attribute nsCIDPtr classID; */
NS_IMETHODIMP
BackstagePass::GetClassID(nsCID * *aClassID)
{
*aClassID = nullptr;
return NS_OK;
}
/* readonly attribute uint32_t implementationLanguage; */
NS_IMETHODIMP
BackstagePass::GetImplementationLanguage(uint32_t *aImplementationLanguage)
{
*aImplementationLanguage = nsIProgrammingLanguage::CPLUSPLUS;
return NS_OK;
}
/* readonly attribute uint32_t flags; */
NS_IMETHODIMP
BackstagePass::GetFlags(uint32_t *aFlags)
{
*aFlags = nsIClassInfo::MAIN_THREAD_ONLY;
return NS_OK;
}
/* [notxpcom] readonly attribute nsCID classIDNoAlloc; */
NS_IMETHODIMP
BackstagePass::GetClassIDNoAlloc(nsCID *aClassIDNoAlloc)
{
return NS_ERROR_NOT_AVAILABLE;
}
NS_IMETHODIMP
BackstagePass::Finalize(nsIXPConnectWrappedNative *wrapper, JSFreeOp * fop, JSObject * obj)
{
nsCOMPtr<nsIGlobalObject> bsp(do_QueryWrappedNative(wrapper));
MOZ_ASSERT(bsp);
static_cast<BackstagePass*>(bsp.get())->ForgetGlobalObject();
return NS_OK;
}
NS_IMETHODIMP
BackstagePass::PreCreate(nsISupports *nativeObj, JSContext *cx,
JSObject *globalObj, JSObject **parentObj)
{
// We do the same trick here as for WindowSH. Return the js global
// as parent, so XPConenct can find the right scope and the wrapper
// that already exists.
nsCOMPtr<nsIGlobalObject> global(do_QueryInterface(nativeObj));
MOZ_ASSERT(global, "nativeObj not a global object!");
JSObject *jsglobal = global->GetGlobalJSObject();
if (jsglobal)
*parentObj = jsglobal;
return NS_OK;
}
nsresult
NS_NewBackstagePass(BackstagePass** ret)
{
nsRefPtr<BackstagePass> bsp = new BackstagePass(
nsContentUtils::GetSystemPrincipal());
bsp.forget(ret);
return NS_OK;
}