/*
* Copyright 2009 Google Inc.
*
* 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.
*/
package com.google.gwt.dom.client;
import com.google.gwt.junit.client.GWTTestCase;
import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.DeferredCommand;
/**
* Tests StyleInjector by looking for effects of injected CSS on DOM elements.
*/
public class StyleInjectorTest extends GWTTestCase {
private static final int TEST_DELAY = 1000;
@Override
public String getModuleName() {
return "com.google.gwt.dom.DOMTest";
}
@SuppressWarnings("deprecation")
public void testOldMethods() {
final DivElement elt = Document.get().createDivElement();
elt.setId("styleInjectorTest");
elt.setInnerHTML("Hello StyleInjector!");
Document.get().getBody().appendChild(elt);
StyleInjector.injectStylesheet("#styleInjectorTest {position: absolute; left: 100px; width: 50px; height 50px;}");
StyleInjector.injectStylesheetAtStart("#styleInjectorTest {left: 25px; width: 100px !important;}");
StyleInjector.injectStylesheetAtEnd("#styleInjectorTest {height: 100px;}");
// We need to allow the document to be redrawn
delayTestFinish(TEST_DELAY);
DeferredCommand.addCommand(new Command() {
@Override
public void execute() {
assertEquals(100, elt.getOffsetLeft());
assertEquals(100, elt.getClientHeight());
assertEquals(100, elt.getClientWidth());
finishTest();
}
});
}
/**
* Ensure that the IE createStyleSheet compatibility code is exercised.
*/
@SuppressWarnings("deprecation")
public void testOldMethodsWithLotsOfStyles() {
StyleElement[] elements = new StyleElement[100];
for (int i = 0, j = elements.length; i < j; i++) {
elements[i] = StyleInjector.injectStylesheet("#styleInjectorTest" + i
+ " {position: absolute; left: 100px; width: 50px; height 50px;}");
}
String id = "styleInjectorTest" + (elements.length - 1);
StyleInjector.injectStylesheetAtStart("#" + id
+ " {left: 25px; width: 100px !important;}");
StyleInjector.injectStylesheetAtEnd("#" + id + " {height: 100px;}");
final DivElement elt = Document.get().createDivElement();
elt.setId(id);
elt.setInnerHTML("Hello StyleInjector!");
Document.get().getBody().appendChild(elt);
// We need to allow the document to be redrawn
delayTestFinish(TEST_DELAY);
DeferredCommand.addCommand(new Command() {
@Override
public void execute() {
assertEquals(100, elt.getOffsetLeft());
assertEquals(100, elt.getClientHeight());
assertEquals(100, elt.getClientWidth());
finishTest();
}
});
}
/*
* Tests against issue #879: Ensure that empty history tokens do not add
* additional characters after the '#' symbol in the URL.
*/
public void testStyleInjectorBatched() {
testStyleInjector("testStyleInjectorBatched", false);
}
public void testStyleInjectorImmediate() {
testStyleInjector("testStyleInjectorImmediate", true);
}
private void testStyleInjector(String testName, final boolean immediate) {
final DivElement elt = Document.get().createDivElement();
elt.setId(testName);
elt.setInnerHTML("Hello");
Document.get().getBody().appendChild(elt);
StyleInjector.inject("#" + testName
+ " {position: absolute; left: 100px; width: 50px; height 50px;}",
immediate);
StyleInjector.injectAtStart("#" + testName
+ " {left: 25px; width: 100px !important;}", immediate);
StyleInjector.injectAtEnd("#" + testName + " {height: 100px;}", immediate);
Command command = new Command() {
@Override
public void execute() {
assertEquals(100, elt.getOffsetLeft());
assertEquals(100, elt.getClientHeight());
assertEquals(100, elt.getClientWidth());
if (!immediate) {
finishTest();
}
}
};
if (immediate) {
command.execute();
} else {
DeferredCommand.addCommand(command);
// We need to allow the BatchedCommands to execute
delayTestFinish(TEST_DELAY);
}
}
}