org.pentaho.mantle.client.MantleMenuBar.java Source code

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Here is the source code for org.pentaho.mantle.client.MantleMenuBar.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 (c) 2002-2013 Pentaho Corporation..  All rights reserved.
 */

package org.pentaho.mantle.client;

import com.google.gwt.event.logical.shared.CloseEvent;
import com.google.gwt.event.logical.shared.CloseHandler;
import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Event;
import com.google.gwt.user.client.ui.Frame;
import com.google.gwt.user.client.ui.MenuBar;
import com.google.gwt.user.client.ui.MenuItem;
import com.google.gwt.user.client.ui.PopupPanel;
import org.pentaho.gwt.widgets.client.utils.ElementUtils;
import org.pentaho.gwt.widgets.client.utils.FrameUtils;
import org.pentaho.mantle.client.solutionbrowser.SolutionBrowserPanel;
import org.pentaho.mantle.client.solutionbrowser.tabs.IFrameTabPanel;

public class MantleMenuBar extends MenuBar {

    public MantleMenuBar() {
        super();
    }

    public MantleMenuBar(boolean vertical) {
        super(vertical);
    }

    @Override
    public void onBrowserEvent(Event event) {
        super.onBrowserEvent(event);

        final MenuItem item = getSelectedItem();
        switch (DOM.eventGetType(event)) {
        case Event.ONCLICK: {
            if (item != null) {
                hidePDFFrames(item);
            }
            break;
        }
        case Event.ONMOUSEOVER: {
            if (item != null) {
                hidePDFFrames(item);
            }
            break;
        }
        }
    }

    private void hidePDFFrames(MenuItem item) {
        Frame frame = getActiveBrowserPerspectiveFrame();
        if (frame == null) {
            return;
        }
        if (item.getSubMenu() != null && item.getSubMenu().isVisible()) {
            if (ElementUtils.elementsOverlap(item.getSubMenu().getElement(),
                    getActiveBrowserPerspectiveFrame().getElement())) {
                FrameUtils.setEmbedVisibility(getActiveBrowserPerspectiveFrame(), false);
            }
        } else if (item.getParentMenu() != null) { // popups
            if (ElementUtils.elementsOverlap(item.getParentMenu().getElement(),
                    getActiveBrowserPerspectiveFrame().getElement())) {
                FrameUtils.setEmbedVisibility(getActiveBrowserPerspectiveFrame(), false);
            }
        }
    }

    private Frame getActiveBrowserPerspectiveFrame() {
        IFrameTabPanel panel = SolutionBrowserPanel.getInstance().getContentTabPanel().getCurrentFrame();
        if (panel == null) {
            return null;
        } else {
            return panel.getFrame();
        }
    }

    @Override
    public void onPopupClosed(PopupPanel sender, boolean autoClosed) {
        super.addCloseHandler(new CloseHandler<PopupPanel>() {

            public void onClose(CloseEvent<PopupPanel> event) {
                Frame frame = getActiveBrowserPerspectiveFrame();
                if (frame == null) {
                    return;
                }
                FrameUtils.setEmbedVisibility(getActiveBrowserPerspectiveFrame(), true);
            }
        });

    }
}