/*
* 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.sample.showcase.client.content.other;
import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.RunAsyncCallback;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyDownEvent;
import com.google.gwt.event.dom.client.KeyDownHandler;
import com.google.gwt.i18n.client.Constants;
import com.google.gwt.sample.showcase.client.ContentWidget;
import com.google.gwt.sample.showcase.client.ShowcaseAnnotations.ShowcaseData;
import com.google.gwt.sample.showcase.client.ShowcaseAnnotations.ShowcaseSource;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Frame;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;
/**
* Example file.
*/
public class CwFrame extends ContentWidget {
/**
* The constants used in this Content Widget.
*/
@ShowcaseSource
public static interface CwConstants extends Constants,
ContentWidget.CwConstants {
String cwFrameDescription();
String cwFrameName();
String cwFrameSetLocation();
}
/**
* An instance of the constants.
*/
@ShowcaseData
private CwConstants constants;
/**
* Constructor.
*
* @param constants the constants
*/
public CwFrame(CwConstants constants) {
super(constants);
this.constants = constants;
}
@Override
public String getDescription() {
return constants.cwFrameDescription();
}
@Override
public String getName() {
return constants.cwFrameName();
}
@Override
public boolean hasStyle() {
return false;
}
/**
* Initialize this example.
*/
@ShowcaseSource
@Override
public Widget onInitialize() {
// Create a new frame
String url = GWT.getModuleBaseURL();
final Frame frame = new Frame(url);
frame.setSize("700px", "300px");
frame.ensureDebugId("cwFrame");
// Create a form to set the location of the frame
final TextBox locationBox = new TextBox();
locationBox.setText(url);
Button setLocationButton = new Button(constants.cwFrameSetLocation());
HorizontalPanel optionsPanel = new HorizontalPanel();
optionsPanel.setSpacing(8);
optionsPanel.add(locationBox);
optionsPanel.add(setLocationButton);
// Change the location when the user clicks the button
setLocationButton.addClickHandler(new ClickHandler() {
public void onClick(ClickEvent event) {
frame.setUrl(locationBox.getText());
}
});
// Change the location when the user presses enter
locationBox.addKeyDownHandler(new KeyDownHandler() {
public void onKeyDown(KeyDownEvent event) {
if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
frame.setUrl(locationBox.getText());
}
}
});
// Add everything to a panel and return it
VerticalPanel vPanel = new VerticalPanel();
vPanel.add(optionsPanel);
vPanel.add(frame);
return vPanel;
}
@Override
protected void asyncOnInitialize(final AsyncCallback<Widget> callback) {
GWT.runAsync(new RunAsyncCallback() {
public void onFailure(Throwable caught) {
callback.onFailure(caught);
}
public void onSuccess() {
callback.onSuccess(onInitialize());
}
});
}
}