gecko-dev/dom/browser-element/mochitest/browserElement_LoadEvents.js

119 строки
3.9 KiB
JavaScript

/* Any copyright is dedicated to the public domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
// Test that an iframe with the |mozbrowser| attribute emits mozbrowserloadX
// events when this page is in the whitelist.
"use strict";
SimpleTest.waitForExplicitFinish();
function runTest() {
browserElementTestHelpers.setEnabledPref(true);
browserElementTestHelpers.addPermission();
// Load emptypage1 into the iframe, wait for that to finish loading, then
// call runTest2.
//
// This should trigger loadstart, locationchange, and loadend events.
var seenLoadEnd = false;
var seenLoadStart = false;
var seenLocationChange = false;
var iframe = document.createElement('iframe');
iframe.mozbrowser = true;
iframe.id = 'iframe';
iframe.src = browserElementTestHelpers.emptyPage1;
function loadstart(e) {
ok(e.isTrusted, 'Event should be trusted.');
ok(!seenLoadEnd, 'loadstart before loadend.');
ok(!seenLoadStart, 'Just one loadstart event.');
ok(!seenLocationChange, 'loadstart before locationchange.');
seenLoadStart = true;
}
function locationchange(e) {
ok(e.isTrusted, 'Event should be trusted.');
ok(!seenLocationChange, 'Just one locationchange event.');
seenLocationChange = true;
ok(seenLoadStart, 'Location change after load start.');
ok(!seenLoadEnd, 'Location change before load end.');
ok(e.detail, browserElementTestHelpers.emptyPage1, "event's reported location");
}
function loadend(e) {
ok(e.isTrusted, 'Event should be trusted.');
ok(seenLoadStart, 'loadend after loadstart.');
ok(!seenLoadEnd, 'Just one loadend event.');
seenLoadEnd = true;
}
iframe.addEventListener('mozbrowserloadstart', loadstart);
iframe.addEventListener('mozbrowserlocationchange', locationchange);
iframe.addEventListener('mozbrowserloadend', loadend);
function waitForAllCallbacks() {
if (!seenLoadStart || !seenLoadEnd) {
SimpleTest.executeSoon(waitForAllCallbacks);
return;
}
iframe.removeEventListener('mozbrowserloadstart', loadstart);
iframe.removeEventListener('mozbrowserlocationchange', locationchange);
iframe.removeEventListener('mozbrowserloadend', loadend);
runTest2();
}
document.body.appendChild(iframe);
waitForAllCallbacks();
}
function runTest2() {
var seenLoadStart = false;
var seenLoadEnd = false;
var seenLocationChange = false;
// Add this event listener to the document; the events should bubble.
document.addEventListener('mozbrowserloadstart', function(e) {
ok(e.isTrusted, 'Event should be trusted.');
ok(!seenLoadStart, 'Just one loadstart event.');
seenLoadStart = true;
ok(!seenLoadEnd, 'Got mozbrowserloadstart before loadend.');
ok(!seenLocationChange, 'Got mozbrowserloadstart before locationchange.');
});
var iframe = document.getElementById('iframe');
iframe.addEventListener('mozbrowserlocationchange', function(e) {
ok(e.isTrusted, 'Event should be trusted.');
ok(!seenLocationChange, 'Just one locationchange event.');
seenLocationChange = true;
ok(seenLoadStart, 'Location change after load start.');
ok(!seenLoadEnd, 'Location change before load end.');
ok(e.detail, browserElementTestHelpers.emptyPage2, "event's reported location");
});
iframe.addEventListener('mozbrowserloadend', function(e) {
ok(e.isTrusted, 'Event should be trusted.');
ok(!seenLoadEnd, 'Just one load end event.');
seenLoadEnd = true;
ok(seenLoadStart, 'Load end after load start.');
ok(seenLocationChange, 'Load end after location change.');
});
iframe.src = browserElementTestHelpers.emptyPage2;
function waitForAllCallbacks() {
if (!seenLoadStart || !seenLoadEnd || !seenLocationChange) {
SimpleTest.executeSoon(waitForAllCallbacks);
return;
}
SimpleTest.finish();
}
waitForAllCallbacks();
}
addEventListener('load', function() { SimpleTest.executeSoon(runTest); });