/closure-library/closure/goog/dom/fontsizemonitor_test.js
JavaScript | 277 lines | 206 code | 49 blank | 22 comment | 5 complexity | 7c925189bf112f024f75ba36cb8e38bc MD5 | raw file
- // Copyright 2008 The Closure Library Authors. All Rights Reserved.
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS-IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- goog.provide('goog.dom.FontSizeMonitorTest');
- goog.setTestOnly('goog.dom.FontSizeMonitorTest');
- goog.require('goog.dom');
- goog.require('goog.dom.FontSizeMonitor');
- goog.require('goog.dom.TagName');
- goog.require('goog.events');
- goog.require('goog.events.Event');
- goog.require('goog.testing.PropertyReplacer');
- goog.require('goog.testing.events');
- goog.require('goog.testing.jsunit');
- goog.require('goog.userAgent');
- function isBuggyGecko() {
- return goog.userAgent.GECKO && !goog.userAgent.isVersionOrHigher('1.9');
- }
- var monitor;
- function setUp() {
- monitor = new goog.dom.FontSizeMonitor();
- }
- function tearDown() {
- monitor.dispose();
- }
- function getResizeTarget() {
- return goog.userAgent.IE ?
- monitor.sizeElement_ :
- goog.dom.getFrameContentWindow(monitor.sizeElement_);
- }
- function testFontSizeNoChange() {
- // This tests that firing the resize event without changing the font-size
- // does not trigger the event.
- var fired = false;
- goog.events.listen(
- monitor, goog.dom.FontSizeMonitor.EventType.CHANGE,
- function(e) { fired = true; });
- var resizeEvent = new goog.events.Event('resize', getResizeTarget());
- goog.testing.events.fireBrowserEvent(resizeEvent);
- assertFalse('The font size should not have changed', fired);
- }
- function testFontSizeChanged() {
- // One can trigger the iframe resize by changing the
- // document.body.style.fontSize but the event is fired asynchronously in
- // Firefox. Instead, we just override the lastWidth_ to simulate that the
- // size changed.
- var fired = false;
- goog.events.listen(
- monitor, goog.dom.FontSizeMonitor.EventType.CHANGE,
- function(e) { fired = true; });
- monitor.lastWidth_--;
- var resizeEvent = new goog.events.Event('resize', getResizeTarget());
- goog.testing.events.fireBrowserEvent(resizeEvent);
- assertTrue('The font size should have changed', fired);
- }
- function testCreateAndDispose() {
- var frameCount = window.frames.length;
- var iframeElementCount =
- document.getElementsByTagName(goog.dom.TagName.IFRAME).length;
- var divElementCount =
- document.getElementsByTagName(goog.dom.TagName.DIV).length;
- var monitor = new goog.dom.FontSizeMonitor();
- monitor.dispose();
- var newFrameCount = window.frames.length;
- var newIframeElementCount =
- document.getElementsByTagName(goog.dom.TagName.IFRAME).length;
- var newDivElementCount =
- document.getElementsByTagName(goog.dom.TagName.DIV).length;
- assertEquals(
- 'There should be no trailing frames', frameCount + isBuggyGecko(),
- newFrameCount);
- assertEquals(
- 'There should be no trailing iframe elements',
- iframeElementCount + isBuggyGecko(), newIframeElementCount);
- assertEquals(
- 'There should be no trailing div elements', divElementCount,
- newDivElementCount);
- }
- function testWithDomHelper() {
- var frameCount = window.frames.length;
- var iframeElementCount =
- document.getElementsByTagName(goog.dom.TagName.IFRAME).length;
- var divElementCount =
- document.getElementsByTagName(goog.dom.TagName.DIV).length;
- var monitor = new goog.dom.FontSizeMonitor(goog.dom.getDomHelper());
- var newFrameCount = window.frames.length;
- var newIframeElementCount =
- document.getElementsByTagName(goog.dom.TagName.IFRAME).length;
- var newDivElementCount =
- document.getElementsByTagName(goog.dom.TagName.DIV).length;
- if (goog.userAgent.IE) {
- assertEquals(
- 'There should be one new div element', divElementCount + 1,
- newDivElementCount);
- } else {
- assertEquals(
- 'There should be one new frame', frameCount + 1, newFrameCount);
- assertEquals(
- 'There should be one new iframe element', iframeElementCount + 1,
- newIframeElementCount);
- }
- // Use the first iframe in the doc. This is added in the HTML markup.
- var win = window.frames[0];
- var doc = win.document;
- doc.open();
- doc.write('<html><body></body></html>');
- doc.close();
- var domHelper = goog.dom.getDomHelper(doc);
- var frameCount2 = win.frames.length;
- var iframeElementCount2 =
- doc.getElementsByTagName(goog.dom.TagName.IFRAME).length;
- var divElementCount2 = doc.getElementsByTagName(goog.dom.TagName.DIV).length;
- var monitor2 = new goog.dom.FontSizeMonitor(domHelper);
- var newFrameCount2 = win.frames.length;
- var newIframeElementCount2 =
- doc.getElementsByTagName(goog.dom.TagName.IFRAME).length;
- var newDivElementCount2 =
- doc.getElementsByTagName(goog.dom.TagName.DIV).length;
- if (goog.userAgent.IE) {
- assertEquals(
- 'There should be one new div element', divElementCount2 + 1,
- newDivElementCount2);
- } else {
- assertEquals(
- 'There should be one new frame', frameCount2 + 1, newFrameCount2);
- assertEquals(
- 'There should be one new iframe element', iframeElementCount2 + 1,
- newIframeElementCount2);
- }
- monitor.dispose();
- monitor2.dispose();
- }
- function testEnsureThatDocIsOpenedForGecko() {
- var pr = new goog.testing.PropertyReplacer();
- pr.set(goog.userAgent, 'GECKO', true);
- pr.set(goog.userAgent, 'IE', false);
- var openCalled = false;
- var closeCalled = false;
- var instance = {
- document: {
- open: function() { openCalled = true; },
- close: function() { closeCalled = true; }
- },
- attachEvent: function() {}
- };
- pr.set(goog.dom, 'getFrameContentWindow', function() { return instance; });
- try {
- var monitor = new goog.dom.FontSizeMonitor();
- assertTrue('doc.open should have been called', openCalled);
- assertTrue('doc.close should have been called', closeCalled);
- monitor.dispose();
- } finally {
- pr.reset();
- }
- }
- function testFirefox2WorkAroundFirefox3() {
- var pr = new goog.testing.PropertyReplacer();
- pr.set(goog.userAgent, 'GECKO', true);
- pr.set(goog.userAgent, 'IE', false);
- try {
- // 1.9 should clear iframes
- pr.set(goog.userAgent, 'VERSION', '1.9');
- goog.userAgent.isVersionOrHigherCache_ = {};
- var frameCount = window.frames.length;
- var iframeElementCount =
- document.getElementsByTagName(goog.dom.TagName.IFRAME).length;
- var divElementCount =
- document.getElementsByTagName(goog.dom.TagName.DIV).length;
- var monitor = new goog.dom.FontSizeMonitor();
- monitor.dispose();
- var newFrameCount = window.frames.length;
- var newIframeElementCount =
- document.getElementsByTagName(goog.dom.TagName.IFRAME).length;
- var newDivElementCount =
- document.getElementsByTagName(goog.dom.TagName.DIV).length;
- assertEquals(
- 'There should be no trailing frames', frameCount, newFrameCount);
- assertEquals(
- 'There should be no trailing iframe elements', iframeElementCount,
- newIframeElementCount);
- assertEquals(
- 'There should be no trailing div elements', divElementCount,
- newDivElementCount);
- } finally {
- pr.reset();
- }
- }
- function testFirefox2WorkAroundFirefox2() {
- var pr = new goog.testing.PropertyReplacer();
- pr.set(goog.userAgent, 'GECKO', true);
- pr.set(goog.userAgent, 'IE', false);
- try {
- // 1.8 should NOT clear iframes
- pr.set(goog.userAgent, 'VERSION', '1.8');
- goog.userAgent.isVersionOrHigherCache_ = {};
- var frameCount = window.frames.length;
- var iframeElementCount =
- document.getElementsByTagName(goog.dom.TagName.IFRAME).length;
- var divElementCount =
- document.getElementsByTagName(goog.dom.TagName.DIV).length;
- var monitor = new goog.dom.FontSizeMonitor();
- monitor.dispose();
- var newFrameCount = window.frames.length;
- var newIframeElementCount =
- document.getElementsByTagName(goog.dom.TagName.IFRAME).length;
- var newDivElementCount =
- document.getElementsByTagName(goog.dom.TagName.DIV).length;
- assertEquals(
- 'There should be no trailing frames', frameCount + 1, newFrameCount);
- assertEquals(
- 'There should be no trailing iframe elements', iframeElementCount + 1,
- newIframeElementCount);
- assertEquals(
- 'There should be no trailing div elements', divElementCount,
- newDivElementCount);
- } finally {
- pr.reset();
- }
- }