com.google.livingstories.client.ui.ButtonListWidget.java Source code

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Here is the source code for com.google.livingstories.client.ui.ButtonListWidget.java

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/**
 * Copyright 2010 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.livingstories.client.ui;

import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FocusPanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * Render a list of items in a button-ish looking list.
 * Each item in the list is clickable.
 */
public class ButtonListWidget extends Composite {
    private VerticalPanel container;

    public ButtonListWidget() {
        super();
        container = new VerticalPanel();
        initWidget(container);
    }

    public void addItem(Widget widget, ClickHandler clickHandler, boolean selected) {
        FocusPanel panel = new FocusPanel();
        panel.setStylePrimaryName("buttonListItem");
        if (selected) {
            panel.addStyleName("selectedButtonListItem");
        }
        panel.add(widget);
        panel.addClickHandler(clickHandler);
        container.add(panel);
    }

    public void selectItem(Widget selectedWidget) {
        int selectedIndex = container.getWidgetIndex(selectedWidget);
        selectItem(selectedIndex);
    }

    public void selectItem(int index) {
        for (int i = 0; i < container.getWidgetCount(); i++) {
            Widget widget = container.getWidget(i);
            if (i == index) {
                widget.addStyleName("selectedButtonListItem");
            } else {
                widget.removeStyleName("selectedButtonListItem");
            }
        }
    }

    public void clear() {
        container.clear();
    }
}