/*
* 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.uibinder.client;
import com.google.gwt.dom.client.DivElement;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.Element;
import com.google.gwt.dom.client.Style.Display;
import com.google.gwt.dom.client.Style.Visibility;
import com.google.gwt.junit.client.GWTTestCase;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Random;
import com.google.gwt.user.client.ui.RootPanel;
/**
* Tests {@link UiBinderUtil}.
*/
public class UiBinderUtilTest extends GWTTestCase {
@Override
public String getModuleName() {
return "com.google.gwt.uibinder.test.UiBinderSuite";
}
public void testAttachToDomAndGetChildUnattached() {
go();
}
public void testAttachToDomAndGetChildUnderUnattached() {
DivElement div = Document.get().createDivElement();
try {
go(div);
} finally {
detach(div);
}
}
public void testAttachToDomAndGetChildUnderHidden() {
DivElement div = Document.get().createDivElement();
try {
RootPanel.getBodyElement().appendChild(div);
div.getStyle().setVisibility(Visibility.HIDDEN);
go(div);
} finally {
detach(div);
}
}
public void testAttachToDomAndGetChildUnderDisplayNone() {
DivElement div = Document.get().createDivElement();
try {
RootPanel.getBodyElement().appendChild(div);
div.getStyle().setDisplay(Display.NONE);
go(div);
} finally {
detach(div);
}
}
public void testAttachToDomAndGetChildUnderAttachedThenUnattached() {
DivElement div = Document.get().createDivElement();
detach(div);
try {
RootPanel.getBodyElement().appendChild(div);
go(div);
} finally {
detach(div);
}
}
/**
* Make sure this test's clean up method actually works.
*/
public void testDetach() {
DivElement div = Document.get().createDivElement();
RootPanel.getBodyElement().appendChild(div);
detach(div);
assertNull(div.getParentElement());
}
private void assertStartsWith(String string, String prefix) {
assertTrue('"' + string + "\" should start with \"" + prefix + "\"",
string.startsWith(prefix));
}
private void findAndAssertTextBeforeFirstChild(Element div, String id,
String firstText) {
UiBinderUtil.TempAttachment t = UiBinderUtil.attachToDom(div);
Element child = Document.get().getElementById(id);
t.detach();
assertStartsWith(child.getInnerHTML(), firstText + "<");
}
private void detach(Element div) {
if (div != null) {
Element parent = div.getParentElement();
if (parent != null) {
parent.removeChild(div);
}
}
}
private void go() {
go(null);
}
private void go(Element underHere) {
Element div = null;
try {
String ableId = DOM.createUniqueId();
String bakerId = DOM.createUniqueId();
String charlieId = DOM.createUniqueId();
String deltaId = DOM.createUniqueId();
String ableText = "able" + Random.nextInt();
String bakerText = "baker" + Random.nextInt();
String charlieText = "charlie" + Random.nextInt();
String deltaText = "delta" + Random.nextInt();
StringBuilder b = new StringBuilder();
b.append("<div>");
b.append("<span id='").append(ableId).append("'>").append(ableText);
b.append("<span id='").append(bakerId).append("'>").append(bakerText);
b.append("<span id='").append(charlieId).append("'>").append(charlieText);
b.append("<span id='").append(deltaId).append("'>").append(deltaText);
b.append("</span>").append("</span>").append("</span>").append("</span>");
b.append("</div>");
div = UiBinderUtil.fromHtml(b.toString());
if (underHere != null) {
underHere.insertFirst(div);
}
findAndAssertTextBeforeFirstChild(div, ableId, ableText);
findAndAssertTextBeforeFirstChild(div, bakerId, bakerText);
findAndAssertTextBeforeFirstChild(div, charlieId, charlieText);
UiBinderUtil.TempAttachment t = UiBinderUtil.attachToDom(div);
Element e = Document.get().getElementById(deltaId);
t.detach();
assertEquals(deltaText, e.getInnerText());
} finally {
// tearDown isn't reliable enough, e.g. doesn't fire when exceptions
// happen
detach(div);
}
}
}