<!DOCTYPE HTML>
<html>
<!--
https://bugzilla.mozilla.org/show_bug.cgi?id=1265279
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1309099 - Web Manifest: Implement window.onappinstalled</title>
<script type="application/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css">
<script>
"use strict";
SimpleTest.waitForExplicitFinish();
const finish = SimpleTest.finish.bind(SimpleTest);
enableOnAppInstalledPref()
.then(createIframe)
.then(checkImplementation)
.then(checkOnappInstalledEventFired)
.then(checkAddEventListenerFires)
.then(finish)
.catch(err => {
ok(false, err.stack);
finish();
});
function enableOnAppInstalledPref() {
const ops = {
"set": [
["dom.manifest.onappinstalled", true],
],
};
return SpecialPowers.pushPrefEnv(ops);
}
// WebIDL conditional annotations for an interface are evaluate once per
// global, so we need to create an iframe to see the effects of calling
// enableOnAppInstalledPref().
function createIframe() {
return new Promise((resolve) => {
const iframe = document.createElement("iframe");
iframe.src = "about:blank";
iframe.onload = () => resolve(iframe.contentWindow);
document.body.appendChild(iframe);
});
}
// Check that the WebIDL is as expected.
function checkImplementation(ifrWindow) {
return new Promise((resolve, reject) => {
const hasOnAppInstalledProp = ifrWindow.hasOwnProperty("onappinstalled");
ok(hasOnAppInstalledProp, "window has own onappinstalled property");
// no point in continuing
if (!hasOnAppInstalledProp) {
const err = new Error("No 'onappinstalled' IDL attribute. Aborting early.");
return reject(err);
}
is(ifrWindow.onappinstalled, null, "window install is initially set to null");
// Check that enumerable, configurable, and has a getter and setter.
const objDescriptor = Object.getOwnPropertyDescriptor(ifrWindow, "onappinstalled");
ok(objDescriptor.enumerable, "is enumerable");
ok(objDescriptor.configurable, "is configurable");
ok(objDescriptor.hasOwnProperty("get"), "has getter");
ok(objDescriptor.hasOwnProperty("set"), "has setter");
resolve(ifrWindow);
});
}
// Checks that .onappinstalled receives an event.
function checkOnappInstalledEventFired(ifrWindow) {
const customEv = new CustomEvent("appinstalled");
return new Promise((resolve) => {
// Test is we receive the event on `appinstalled`
ifrWindow.onappinstalled = ev => {
ifrWindow.onappinstalled = null;
is(ev, customEv, "The events should be the same event object");
resolve(ifrWindow);
};
ifrWindow.dispatchEvent(customEv);
});
}
// Checks that .addEventListener("appinstalled") receives an event.
function checkAddEventListenerFires(ifrWindow) {
const customEv = new CustomEvent("appinstalled");
return new Promise((resolve) => {
ifrWindow.addEventListener("appinstalled", function handler(ev) {
ifrWindow.removeEventListener("appinstalled", handler);
is(ev, customEv, "The events should be the same");
resolve(ifrWindow);
});
ifrWindow.dispatchEvent(customEv);
});
}
</script>
</head>