/*
* TabOverflowPopupPanel.java
*
* Copyright (C) 2009-12 by RStudio, Inc.
*
* Unless you have received this program directly from RStudio pursuant
* to the terms of a commercial license agreement with RStudio, then
* this program is licensed to you under the terms of version 3 of the
* GNU Affero General Public License. This program is distributed WITHOUT
* ANY EXPRESS OR IMPLIED WARRANTY, INCLUDING THOSE OF NON-INFRINGEMENT,
* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Please refer to the
* AGPL (http://www.gnu.org/licenses/agpl-3.0.txt) for more details.
*
*/
package org.rstudio.studio.client.workbench.views.source;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.core.client.Scheduler.ScheduledCommand;
import com.google.gwt.dom.client.Style.Unit;
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.event.logical.shared.CloseEvent;
import com.google.gwt.event.logical.shared.CloseHandler;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.ui.DockPanel;
import com.google.gwt.user.client.ui.MenuItem;
import com.google.gwt.user.client.ui.PopupPanel;
import com.google.gwt.user.client.ui.SuggestOracle;
import org.rstudio.core.client.command.BaseMenuBar;
import org.rstudio.core.client.theme.res.ThemeStyles;
import org.rstudio.core.client.widget.SearchWidget;
import org.rstudio.core.client.widget.ThemedPopupPanel;
import java.util.ArrayList;
public class TabOverflowPopupPanel extends ThemedPopupPanel
implements ValueChangeHandler<String>
{
private class DocsOracle extends SuggestOracle
{
@Override
public void requestSuggestions(Request request, Callback callback)
{
}
}
private class MenuKeyHandler implements KeyDownHandler
{
public MenuKeyHandler(BaseMenuBar menu)
{
menu_ = menu;
}
public void onKeyDown(KeyDownEvent event)
{
switch (event.getNativeKeyCode())
{
case KeyCodes.KEY_DOWN:
case KeyCodes.KEY_UP:
event.preventDefault();
event.stopPropagation();
ArrayList<MenuItem> items = menu_.getVisibleItems();
if (items.size() == 0)
return;
boolean up = event.getNativeKeyCode() == KeyCodes.KEY_UP;
int index = up ? items.size() + 1 : -1;
MenuItem selectedItem = menu_.getSelectedItem();
if (selectedItem != null && items.contains(selectedItem))
index = items.indexOf(selectedItem);
index = (index + (up ? -1 : 1) + items.size()) % items.size();
menu_.selectItem(items.get(index));
break;
case KeyCodes.KEY_ENTER:
event.preventDefault();
event.stopPropagation();
MenuItem selected = menu_.getSelectedItem();
if (selected != null && selected.isVisible())
selected.getScheduledCommand().execute();
else
{
ArrayList<MenuItem> visibleItems = menu_.getVisibleItems();
if (visibleItems.size() == 1)
visibleItems.get(0).getScheduledCommand().execute();
}
break;
case KeyCodes.KEY_ESCAPE:
event.preventDefault();
event.stopPropagation();
hide(false);
}
}
private final BaseMenuBar menu_;
}
public TabOverflowPopupPanel()
{
super(true, false);
DockPanel dockPanel = new DockPanel();
search_ = new SearchWidget(new DocsOracle());
search_.addValueChangeHandler(this);
search_.getElement().getStyle().setMarginRight(0, Unit.PX);
dockPanel.add(search_, DockPanel.NORTH);
menu_ = new DocsMenu();
menu_.setOwnerPopupPanel(this);
menu_.setWidth("100%");
dockPanel.add(menu_, DockPanel.CENTER);
setWidget(dockPanel);
setStylePrimaryName(ThemeStyles.INSTANCE.tabOverflowPopup());
addDomHandler(new MenuKeyHandler(menu_), KeyDownEvent.getType());
addHandler(new CloseHandler<PopupPanel>() {
public void onClose(CloseEvent<PopupPanel> popupPanelCloseEvent)
{
search_.setText("", true);
menu_.filter(null);
menu_.selectItem(null);
}
}, CloseEvent.getType());
}
public void onValueChange(ValueChangeEvent<String> event)
{
String value = event.getValue();
menu_.filter(value);
}
@Override
public void show()
{
super.show();
Scheduler.get().scheduleDeferred(new ScheduledCommand()
{
public void execute()
{
search_.focus();
}
});
}
private final DocsMenu menu_;
private final SearchWidget search_;
}