gecko-dev/dom/browser-element/mochitest/browserElement_DocumentFirs...

70 строки
1.6 KiB
JavaScript

/* Any copyright is dedicated to the public domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
// Bug 829486 - Add mozdocumentbrowserfirstpaint event.
"use strict";
SimpleTest.waitForExplicitFinish();
browserElementTestHelpers.setEnabledPref(true);
var iframe;
function runTestQueue(queue) {
if (queue.length == 0) {
SimpleTest.finish();
return;
}
var gotFirstPaint = false;
var gotFirstLocationChange = false;
var test = queue.shift();
function runNext() {
iframe.removeEventListener('mozbrowserdocumentfirstpaint', documentfirstpainthandler);
iframe.removeEventListener('mozbrowserloadend', loadendhandler);
runTestQueue(queue);
}
function documentfirstpainthandler(e) {
ok(!gotFirstPaint, "Got firstpaint only once");
gotFirstPaint = true;
if (gotFirstLocationChange) {
runNext();
}
}
function loadendhandler(e) {
gotFirstLocationChange = true;
if (gotFirstPaint) {
runNext();
}
}
iframe.addEventListener('mozbrowserdocumentfirstpaint', documentfirstpainthandler);
iframe.addEventListener('mozbrowserloadend', loadendhandler);
test();
}
function testChangeLocation() {
iframe.src = browserElementTestHelpers.emptyPage1 + "?2";
}
function testReload() {
iframe.reload();
}
function testFirstLoad() {
document.body.appendChild(iframe);
iframe.src = browserElementTestHelpers.emptyPage1;
}
function runTest() {
iframe = document.createElement('iframe');
iframe.setAttribute('mozbrowser', 'true');
runTestQueue([testFirstLoad, testReload, testChangeLocation]);
}
addEventListener('testready', runTest);