/*
* Copyright 2008 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.user.client.ui;
import com.google.gwt.dom.client.Document;
import com.google.gwt.dom.client.InputElement;
import com.google.gwt.dom.client.NativeEvent;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.event.shared.HandlerManager;
import com.google.gwt.junit.client.GWTTestCase;
import com.google.gwt.safehtml.shared.SafeHtmlUtils;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
/**
* Tests the CheckBox Widget.
*/
public class CheckBoxTest extends GWTTestCase {
@SuppressWarnings("deprecation")
static class ListenerTester implements ClickListener {
static int fired = 0;
static HandlerManager manager;
public static void fire() {
fired = 0;
manager.fireEvent(new ClickEvent() {
});
}
public void onClick(Widget sender) {
++fired;
}
}
private static class Handler implements ValueChangeHandler<Boolean> {
Boolean received = null;
public void onValueChange(ValueChangeEvent<Boolean> event) {
received = event.getValue();
}
}
private static final String html = "<b>hello</b><i>world</i>";
private CheckBox cb;
@Override
public String getModuleName() {
return "com.google.gwt.user.DebugTest";
}
/**
* Test accessors.
*/
@SuppressWarnings("deprecation")
public void testAccessors() {
cb.setHTML("test HTML");
assertEquals(cb.getHTML(), "test HTML");
cb.setText("test Text");
assertEquals(cb.getText(), "test Text");
cb.setChecked(true);
assertTrue(cb.isChecked());
cb.setChecked(false);
assertFalse(cb.isChecked());
cb.setValue(true);
assertTrue(cb.getValue());
cb.setValue(false);
assertFalse(cb.getValue());
// null implies false
cb.setValue(null);
assertFalse(cb.getValue());
cb.setEnabled(false);
assertFalse(cb.isEnabled());
cb.setEnabled(true);
assertTrue(cb.isEnabled());
cb.setTabIndex(2);
assertEquals(cb.getTabIndex(), 2);
cb.setName("my name");
assertEquals(cb.getName(), "my name");
cb.setFormValue("valuable");
assertEquals("valuable", cb.getFormValue());
}
public void testConstructorInputElement() {
InputElement elm = DOM.createInputCheck().cast();
CheckBox box = new CheckBox(elm.<Element> cast());
assertFalse(box.getValue());
elm.setDefaultChecked(true);
assertTrue(box.getValue());
}
public void testDebugId() {
CheckBox check = new CheckBox("myLabel");
// We need to replace the input element so we can keep a handle to it
Element newInput = DOM.createInputCheck();
check.replaceInputElement(newInput);
check.ensureDebugId("myCheck");
RootPanel.get().add(check);
UIObjectTest.assertDebugId("myCheck", check.getElement());
UIObjectTest.assertDebugId("myCheck-input", newInput);
UIObjectTest.assertDebugIdContents("myCheck-label", "myLabel");
}
/**
* Tests that detaching and attaching a CheckBox widget retains the checked
* state of the element. This is known to be tricky on IE.
*/
public void testDetachment() {
InputElement elm = DOM.createInputCheck().cast();
CheckBox box = new CheckBox(elm.<Element> cast());
RootPanel.get().add(box);
elm.setChecked(true);
RootPanel.get().remove(box);
RootPanel.get().add(box);
assertTrue(elm.isChecked());
}
public void testFormValue() {
InputElement elm = Document.get().createCheckInputElement();
Element asOldElement = elm.cast();
cb.replaceInputElement(asOldElement);
// assertEquals("", elm.getValue());
cb.setFormValue("valuable");
assertEquals("valuable", elm.getValue());
elm.setValue("invaluable");
assertEquals("invaluable", cb.getFormValue());
}
@SuppressWarnings("deprecation")
public void testListenerRemoval() {
ClickListener r1 = new ListenerTester();
ClickListener r2 = new ListenerTester();
ListenerTester.manager = cb.ensureHandlers();
cb.addClickListener(r1);
cb.addClickListener(r2);
ListenerTester.fire();
assertEquals(ListenerTester.fired, 2);
cb.removeClickListener(r1);
ListenerTester.fire();
assertEquals(ListenerTester.fired, 1);
cb.removeClickListener(r2);
ListenerTester.fire();
assertEquals(ListenerTester.fired, 0);
}
public void testCheckboxClick() {
final int[] clickCount = {0};
CheckBox check = new CheckBox();
Element newInput = DOM.createInputCheck();
check.replaceInputElement(newInput);
check.setText("Burger");
check.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent arg0) {
clickCount[0]++;
}
});
RootPanel.get().add(check);
NativeEvent e = Document.get().createClickEvent(0, 25, 25, 25, 25, false,
false, false, false);
newInput.dispatchEvent(e);
assertEquals(1, clickCount[0]);
}
public void testReplaceInputElement() {
cb.setValue(true);
cb.setTabIndex(1234);
cb.setEnabled(false);
cb.setAccessKey('k');
cb.setFormValue("valuable");
InputElement elm = Document.get().createCheckInputElement();
assertFalse(elm.isChecked());
Element asOldElement = elm.cast();
cb.replaceInputElement(asOldElement);
// The values should be preserved
assertTrue(cb.getValue());
assertEquals(1234, cb.getTabIndex());
assertFalse(cb.isEnabled());
assertEquals("k", elm.getAccessKey());
assertEquals("valuable", cb.getFormValue());
assertTrue(elm.isChecked());
cb.setValue(false);
assertFalse(elm.isChecked());
elm.setChecked(true);
assertTrue(cb.getValue());
}
public void testSafeHtmlConstructor() {
CheckBox box = new CheckBox(SafeHtmlUtils.fromSafeConstant(html));
assertEquals(html, box.getHTML().toLowerCase());
}
public void testSetSafeHtml() {
CheckBox box = new CheckBox("hello");
box.setHTML(SafeHtmlUtils.fromSafeConstant(html));
assertEquals(html, box.getHTML().toLowerCase());
}
@SuppressWarnings("deprecation")
public void testValueChangeEvent() {
Handler h = new Handler();
cb.addValueChangeHandler(h);
cb.setChecked(false);
assertNull(h.received);
cb.setChecked(true);
assertNull(h.received);
cb.setValue(false);
assertNull(h.received);
cb.setValue(true);
assertNull(h.received);
cb.setValue(true, true);
assertNull(h.received);
cb.setValue(false, true);
assertFalse(h.received);
cb.setValue(true, true);
assertTrue(h.received);
// Note that we cannot test this with a simulated click, the way
// we do for the click handlers. IE does not change the value of
// the native checkbox on simulated click event, and there's
// naught to be done about it.
}
public void testWordWrap() {
assertTrue(cb.getWordWrap());
cb.setWordWrap(false);
assertFalse(cb.getWordWrap());
cb.setWordWrap(true);
assertTrue(cb.getWordWrap());
}
@Override
protected void gwtSetUp() throws Exception {
super.gwtSetUp();
RootPanel.get().clear();
cb = new CheckBox();
RootPanel.get().add(cb);
}
@Override
protected void gwtTearDown() throws Exception {
RootPanel.get().clear();
super.gwtTearDown();
}
}