/*
* Copyright 2007 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.sample.mail.client;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.ClickListener;
import com.google.gwt.user.client.ui.DialogBox;
import com.google.gwt.user.client.ui.HTML;
import com.google.gwt.user.client.ui.KeyboardListener;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
/**
* A simple example of an 'about' dialog box.
*/
public class AboutDialog extends DialogBox {
public AboutDialog() {
// Use this opportunity to set the dialog's caption.
setText("About the Mail Sample");
// Create a VerticalPanel to contain the 'about' label and the 'OK' button.
VerticalPanel outer = new VerticalPanel();
// Create the 'about' text and set a style name so we can style it with CSS.
HTML text = new HTML("This sample application demonstrates the "
+ "construction of a complex user interface using GWT's built-in "
+ "widgets. Have a look at the code to see how easy it is to build "
+ "your own apps!");
text.setStyleName("mail-AboutText");
outer.add(text);
// Create the 'OK' button, along with a listener that hides the dialog
// when the button is clicked.
outer.add(new Button("Close", new ClickListener() {
public void onClick(Widget sender) {
hide();
}
}));
setWidget(outer);
}
public boolean onKeyDownPreview(char key, int modifiers) {
// Use the popup's key preview hooks to close the dialog when either
// enter or escape is pressed.
switch (key) {
case KeyboardListener.KEY_ENTER:
case KeyboardListener.KEY_ESCAPE:
hide();
break;
}
return true;
}
}
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