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<!DOCTYPE html>
<html>
<!--
Copyright 2008 The Closure Library Authors. All Rights Reserved.
Use of this source code is governed by the Apache License, Version 2.0.
See the COPYING file for details.
-->
<!--
Author: attila@google.com (Attila Bodis)
-->
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Closure Unit Tests - goog.dom.a11y</title>
<script src="../base.js"></script>
<script>
goog.require('goog.dom');
goog.require('goog.dom.a11y');
goog.require('goog.dom.a11y.Announcer');
goog.require('goog.dom.a11y.LivePriority');
goog.require('goog.dom.a11y.Role');
goog.require('goog.dom.a11y.State');
goog.require('goog.dom.iframe');
goog.require('goog.testing.jsunit');
goog.require('goog.userAgent');
</script>
</head>
<body>
<div id="sandbox"></div>
<script>
var sandbox = goog.dom.getElement('sandbox');
var someDiv;
var someSpan;
function setUp() {
someDiv = goog.dom.createDom('div', {id: 'someDiv'}, 'DIV');
someSpan = goog.dom.createDom('span', {id: 'someSpan'}, 'SPAN');
sandbox.appendChild(someDiv);
someDiv.appendChild(someSpan);
}
function tearDown() {
sandbox.innerHTML = '';
someDiv = null;
someSpan = null;
}
function testGetSetRole() {
assertEquals('someDiv\'s role should be the empty string',
'', goog.dom.a11y.getRole(someDiv));
assertEquals('someSpan\'s role should be the empty string',
'', goog.dom.a11y.getRole(someSpan));
goog.dom.a11y.setRole(someDiv, goog.dom.a11y.Role.MENU);
goog.dom.a11y.setRole(someSpan, goog.dom.a11y.Role.MENU_ITEM);
assertEquals('someDiv\'s role should be MENU',
goog.dom.a11y.Role.MENU, goog.dom.a11y.getRole(someDiv));
assertEquals('someSpan\'s role should be MENU_ITEM',
goog.dom.a11y.Role.MENU_ITEM, goog.dom.a11y.getRole(someSpan));
var div = goog.dom.createElement('div');
sandbox.appendChild(div);
div.innerHTML = '<span id="anotherSpan" role="' +
goog.dom.a11y.Role.CHECKBOX + '"></span>';
assertEquals('anotherSpan\'s role should be CHECKBOX',
goog.dom.a11y.Role.CHECKBOX,
goog.dom.a11y.getRole(document.getElementById('anotherSpan')));
}
function testGetSetState() {
assertEquals('someDiv\'s state should be the empty string',
'', goog.dom.a11y.getState(someDiv));
goog.dom.a11y.setState(someDiv, goog.dom.a11y.State.LABELLEDBY,
'someSpan');
assertEquals(
'someDiv\'s labelledby state should be "someSpan"',
'someSpan',
goog.dom.a11y.getState(someDiv, goog.dom.a11y.State.LABELLEDBY));
}
function testGetSetActiveDescendant() {
goog.dom.a11y.setActiveDescendant(someDiv, null);
assertNull('someDiv\'s activedescendant should be null',
goog.dom.a11y.getActiveDescendant(someDiv));
goog.dom.a11y.setActiveDescendant(someDiv, someSpan);
assertEquals(
'someDiv\'s active descendant should be "someSpan"',
someSpan,
goog.dom.a11y.getActiveDescendant(someDiv));
}
function testAnnouncerAndDispose() {
var text = 'test content';
var announcer = new goog.dom.a11y.Announcer(goog.dom.getDomHelper());
announcer.say(text);
checkLiveRegionContains(text, 'polite');
goog.dispose(announcer);
}
function testAnnouncerTwice() {
var text = 'test content1';
var text2 = 'test content2';
var announcer = new goog.dom.a11y.Announcer(goog.dom.getDomHelper());
announcer.say(text);
announcer.say(text2);
checkLiveRegionContains(text2, 'polite');
goog.dispose(announcer);
}
function testAnnouncerAssertive() {
var text = 'test content';
var announcer = new goog.dom.a11y.Announcer(goog.dom.getDomHelper());
announcer.say(text, goog.dom.a11y.LivePriority.ASSERTIVE);
checkLiveRegionContains(text, 'assertive');
goog.dispose(announcer);
}
function testAnnouncerInIframe() {
var text = 'test content';
var frame = goog.dom.iframe.createWithContent(sandbox);
var helper = goog.dom.getDomHelper(
goog.dom.getFrameContentDocument(frame).body);
var announcer = new goog.dom.a11y.Announcer(helper);
announcer.say(text, 'polite', helper);
checkLiveRegionContains(text, 'polite', helper);
goog.dispose(announcer);
}
function checkLiveRegionContains(text, priority, opt_domHelper) {
var dom = opt_domHelper || goog.dom.getDomHelper();
var divs = dom.getElementsByTagNameAndClass('div', null);
var liveRegions = [];
goog.array.forEach(divs, function(div) {
if (goog.dom.a11y.getState(div, 'live') == priority) {
liveRegions.push(div);
}
});
assertEquals(1, liveRegions.length);
assertEquals(text, goog.dom.getTextContent(liveRegions[0]));
}
</script>
</body>
</html>
|
