asquare.gwt.tests.focusevent.client.Demo.java Source code

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Here is the source code for asquare.gwt.tests.focusevent.client.Demo.java

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/*
 * Copyright 2006 Mat Gessel <mat.gessel@gmail.com>
 * 
 * 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 asquare.gwt.tests.focusevent.client;

import java.util.HashMap;

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.event.dom.client.HasFocusHandlers;
import com.google.gwt.user.client.ui.*;

public class Demo implements EntryPoint {
    public void onModuleLoad() {
        RootPanel.get("gwt").add(createDemoPanel());
    }

    private Widget createDemoPanel() {
        TestPanel outer = new TestPanel();

        outer.add(new Label("GWT onfocus Event Handler"));
        outer.add(new Button("Button"), "Button");
        outer.add(new CheckBox("CheckBox"), "CheckBox");
        outer.add(new RadioButton("group1", "RadioButton1"), "RadioButton1");
        TextBox textBox = new TextBox();
        textBox.setText("TextBox");
        outer.add(textBox, "TextBox");
        PasswordTextBox passwordTextBox = new PasswordTextBox();
        passwordTextBox.setText("PasswordTextBox");
        outer.add(passwordTextBox, "PasswordTextBox");
        TextArea textArea = new TextArea();
        textArea.setText("TextArea");
        outer.add(textArea, "TextArea");
        ListBox listBox = new ListBox();
        listBox.addItem("ListBox");
        listBox.addItem("item2");
        listBox.addItem("item3");
        outer.add(listBox, "ListBox");
        outer.add(new FocusPanel(new Label("Label in a FocusPanel")), "FocusPanel");
        Tree tree = new Tree();
        tree.addItem("item1");
        tree.addItem("item2");
        tree.addItem("item3");
        outer.add(tree, "Tree");

        return outer;
    }

    private static class TestPanel extends VerticalPanel implements FocusHandler {
        private final HashMap<Widget, UIObject> m_borders = new HashMap<Widget, UIObject>();

        public void add(Widget w, String name) {
            FlowPanel border = new FlowPanel();
            border.addStyleName("fail");
            border.add(new Label(name));
            border.add(w);
            add(border);
            m_borders.put(w, border);
            ((HasFocusHandlers) w).addFocusHandler(this);
        }

        public void onFocus(FocusEvent event) {
            UIObject border = m_borders.get(event.getSource());
            border.removeStyleName("fail");
            border.addStyleName("pass");
        }
    }
}