gecko/dom/browser-element/mochitest/browserElement_Viewmode.js

72 lines
2.1 KiB
JavaScript

/* Any copyright is dedicated to the public domain.
http://creativecommons.org/publicdomain/zero/1.0/ */
// Test that the onmozbrowsermetachange event for viewmode works.
"use strict";
SimpleTest.waitForExplicitFinish();
browserElementTestHelpers.setEnabledPref(true);
browserElementTestHelpers.addPermission();
function runTest() {
function loadFrameScript(script) {
SpecialPowers.getBrowserFrameMessageManager(iframe1)
.loadFrameScript('data:,' + script,
/* allowDelayedLoad = */ false);
}
let iframe1 = document.createElement('iframe');
iframe1.setAttribute('mozbrowser', 'true');
iframe1.src = "http://test/tests/dom/browser-element/mochitest/file_browserElement_Viewmode.html";
iframe1.addEventListener('mozbrowsermetachange', tests);
document.body.appendChild(iframe1);
let numMetaChanges = 0;
function tests(e) {
let detail = e.detail;
switch (numMetaChanges++) {
case 0: {
is(detail.name, 'viewmode', 'name matches');
is(detail.content, 'projection=stereo', 'content matches');
is(detail.type, 'added', 'type matches');
let script =
"var meta = content.document.head.querySelector('meta');" +
"meta.content = 'projection=mono';";
loadFrameScript(script);
break;
}
case 1: {
is(detail.name, 'viewmode', 'name matches');
is(detail.content, 'projection=mono', 'content matches');
is(detail.type, 'changed', 'type matches');
let script =
"var meta = content.document.head.querySelector('meta');" +
"meta.parentNode.removeChild(meta);";
loadFrameScript(script);
break;
}
case 2: {
is(detail.name, 'viewmode', 'name matches');
is(detail.content, 'projection=mono', 'content matches');
is(detail.type, 'removed', 'type matches');
SimpleTest.finish();
break;
}
default: {
ok(false, 'Too many metachange events.');
break;
}
}
};
}
window.addEventListener('testready', runTest);