Revision 9454b8e581454d3bf0dabb368f4cf90c8e3dcc6c authored by Geoffrey Sneddon on 27 August 2018, 16:01:41 UTC, committed by James Graham on 14 November 2018, 11:37:48 UTC
1 parent beb9940
app-can-make-payment.js
self.addEventListener('canmakepayment', event => {
if (event.methodData.length !== 1) {
const msg = 'Expected exactly one method data.';
event.respondWith(Promise.reject(new Error(msg)));
return;
}
const [method] = event.methodData;
if (!method || method.supportedMethods.length !== 1) {
const msg = 'Expected exactly one supported method name';
event.respondWith(Promise.reject(new Error(msg)));
return;
}
if (method.data.defaultParameter !== 'defaultValue') {
const msg = `Unexpected value for "defaultParameter": ${
method.data.defaultParameter
}`;
event.respondWith(Promise.reject(new Error(msg)));
return;
}
if ('defaultUnsupportedParameter' in method.data) {
const msg = 'Unexpected "defaultUnsupportedParameter"';
event.respondWith(Promise.reject(new Error(msg)));
return;
}
if (event.modifiers.length !== 1) {
const msg = 'Expected exactly one modifier';
event.respondWith(Promise.reject(new Error(msg)));
return;
}
const [modifier] = event.modifiers;
if (!modifier || modifier.supportedMethods.length !== 1) {
const msg = 'Expected exactly one supported method name in modifier';
event.respondWith(Promise.reject(new Error(msg)));
return;
}
for (const member of [
'additionalDisplayItems',
'modifiedUnsupportedParameter',
'total',
]) {
if (member in modifier) {
const msg = `Unexpected member "${member}" in modifier`;
event.respondWith(Promise.reject(new Error(msg)));
return;
}
}
const [methodName] = method.supportedMethods;
if (methodName === 'basic-card') {
const msg =
'"basic-card" payment method must never be checked in CanMakePaymentEvent';
event.respondWith(Promise.reject(new Error(msg)));
return;
}
const [modifierMethodName] = modifier.supportedMethods;
if (modifierMethodName !== methodName) {
const msg = `Unexpected modifier method name: "${modifierMethodName}". Expected "${methodName}".`;
event.respondWith(Promise.reject(new Error(msg)));
return;
}
if (modifier.data.modifiedParameter !== 'modifiedValue') {
const msg = `Unexpected value for 'modifiedParameter': ${
modifier.data.modifiedParameter
}`;
event.respondWith(Promise.reject(new Error(msg)));
return;
}
const methodAsURL = new URL(methodName);
if (event.topOrigin !== methodAsURL.origin) {
const msg = `Unexpected event.topOrigin: "${
event.topOrigin
}". Expected "${methodAsURL.origin}".`;
event.respondWith(Promise.reject(new Error(msg)));
return;
}
if (event.paymentRequestOrigin !== methodAsURL.origin) {
const msg = `Unexpected iframe origin ${event.paymentRequestOrigin}`;
event.respondWith(Promise.reject(new Error(msg)));
return;
}
switch (methodAsURL.pathname.substr(1)) {
case 'canMakePayment-true':
event.respondWith(true);
break;
case 'canMakePayment-false':
event.respondWith(false);
break;
case 'canMakePayment-promise-true':
event.respondWith(Promise.resolve(true));
break;
case 'canMakePayment-promise-false':
event.respondWith(Promise.resolve(false));
break;
case 'canMakePayment-custom-error':
event.respondWith(Promise.reject(new Error('Custom error')));
break;
default:
const msg = `Unrecognized payment method name "${methodName}".`;
event.respondWith(Promise.reject(new Error(msg)));
break;
}
});
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