org.pentaho.pac.client.common.ui.toolbar.ToolbarComboButton.java Source code

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Here is the source code for org.pentaho.pac.client.common.ui.toolbar.ToolbarComboButton.java

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/*
 * This program is free software; you can redistribute it and/or modify it under the 
 * terms of the GNU Lesser General Public License, version 2.1 as published by the Free Software 
 * Foundation.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this 
 * program; if not, you can obtain a copy at http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html 
 * or from the Free Software Foundation, Inc., 
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * Copyright 2008 - 2009 Pentaho Corporation.  All rights reserved.
*/
package org.pentaho.pac.client.common.ui.toolbar;

import com.google.gwt.user.client.Command;
import com.google.gwt.user.client.ui.Image;
import com.google.gwt.user.client.ui.MenuBar;
import com.google.gwt.user.client.ui.MouseListener;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.Widget;

public class ToolbarComboButton extends ToolbarButton {

    private String COMBO_STYLE = "toolbar-combo-button"; //$NON-NLS-1$
    private MenuBar menu;

    /**
     * Constructs a toolbar button with an image and a label
     * 
     * @param img GWT Image object 
     * @param label String containing an option label
     */
    public ToolbarComboButton(Image img, String label) {
        super(img, label);
        addDropdownControl();
        super.setStylePrimaryName(COMBO_STYLE);
    }

    /**
     * Constructs a toolbar button with an enabled image, disabled image and a label
     * 
     * @param img GWT Image object 
     * @param disabledImage GWT Image object 
     * @param label String containing an option label
     */
    public ToolbarComboButton(Image img, Image disabledImage, String label) {
        super(img, disabledImage, label);
        addDropdownControl();
        super.setStylePrimaryName(COMBO_STYLE);
    }

    /**
     * Constructs a toolbar button with an enabled image, disabled image and a label
     * 
     * @param img GWT Image object 
     * @param disabledImage GWT Image object 
     * @param label String containing an option label
     */
    public ToolbarComboButton(Image img, Image disabledImage) {
        super(img, disabledImage);
        addDropdownControl();
        super.setStylePrimaryName(COMBO_STYLE);
    }

    /**
     * Constructs a toolbar button with an image
     * 
     * @param img GWT Image object 
     */
    public ToolbarComboButton(Image img) {
        super(img);
        addDropdownControl();
        super.setStylePrimaryName(COMBO_STYLE);
    }

    private void addDropdownControl() {

    }

    @Override
    public void setCommand(Command cmd) {
        throw new UnsupportedOperationException("Not implemented in this class"); //$NON-NLS-1$
    }

    private PopupPanel createPopup() {

        PopupPanel popup = new PopupPanel(true);
        popup.setWidget(menu);
        return popup;
    }

    @Override
    protected void addStyleMouseListener() {
        eventWrapper.addMouseListener(new MouseListener() {
            private PopupPanel popup;

            public void onMouseDown(Widget w, int x, int y) {
                if (!enabled) {
                    return;
                }
                if (this.popup != null) {
                    popup.hide();
                    popup.removeFromParent();
                }

                this.popup = createPopup();

                popup.setPopupPosition(w.getAbsoluteLeft(), w.getAbsoluteTop() + w.getOffsetHeight());
                popup.show();
            }

            public void onMouseEnter(Widget w) {
                button.addStyleName(stylePrimaryName + "-hovering"); //$NON-NLS-1$
            }

            public void onMouseLeave(Widget w) {
                button.removeStyleName(stylePrimaryName + "-hovering"); //$NON-NLS-1$
            }

            public void onMouseUp(Widget w, int x, int y) {
            }

            public void onMouseMove(Widget w, int x, int y) {
            }
        });
    }

    public void setMenu(MenuBar bar) {
        this.menu = bar;
    }
}