PlatypusComboBox.java

package com.eas.widgets;

import com.eas.core.HasPublished;
import com.eas.core.XElement;
import com.eas.menu.HasComponentPopupMenu;
import com.eas.menu.PlatypusPopupMenu;
import com.eas.ui.HasEventsExecutor;
import com.eas.ui.HasJsFacade;
import com.eas.ui.events.EventsExecutor;
import com.eas.ui.events.HasHideHandlers;
import com.eas.ui.events.HasShowHandlers;
import com.eas.ui.events.HideEvent;
import com.eas.ui.events.HideHandler;
import com.eas.ui.events.ShowEvent;
import com.eas.ui.events.ShowHandler;
import com.eas.widgets.boxes.StyledListBox;
import com.google.gwt.core.client.JavaScriptObject;
import com.google.gwt.event.dom.client.ContextMenuEvent;
import com.google.gwt.event.dom.client.ContextMenuHandler;
import com.google.gwt.event.logical.shared.HasResizeHandlers;
import com.google.gwt.event.logical.shared.ResizeEvent;
import com.google.gwt.event.logical.shared.ResizeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.ui.RequiresResize;

public class PlatypusComboBox extends StyledListBox<Object> implements HasJsFacade, HasComponentPopupMenu, HasEventsExecutor, HasShowHandlers, HasHideHandlers, HasResizeHandlers, RequiresResize {

	protected EventsExecutor eventsExecutor;
	protected String name;
	protected PlatypusPopupMenu menu;
	protected JavaScriptObject published;

	public PlatypusComboBox() {
		super();
		getElement().<XElement>cast().addResizingTransitionEnd(this);
	}

	@Override
	public HandlerRegistration addResizeHandler(ResizeHandler handler) {
		return addHandler(handler, ResizeEvent.getType());
	}

	@Override
	public void onResize() {
		if(isAttached()){
			ResizeEvent.fire(this, getElement().getOffsetWidth(), getElement().getOffsetHeight());
		}
	}

	@Override
	public HandlerRegistration addHideHandler(HideHandler handler) {
		return addHandler(handler, HideEvent.getType());
	}

	@Override
	public HandlerRegistration addShowHandler(ShowHandler handler) {
		return addHandler(handler, ShowEvent.getType());
	}

	@Override
	public void setVisible(boolean visible) {
		boolean oldValue = isVisible();
		super.setVisible(visible);
		if (oldValue != visible) {
			if (visible) {
				ShowEvent.fire(this, this);
			} else {
				HideEvent.fire(this, this);
			}
		}
	}

	@Override
	public EventsExecutor getEventsExecutor() {
		return eventsExecutor;
	}

	@Override
	public void setEventsExecutor(EventsExecutor aExecutor) {
		eventsExecutor = aExecutor;
	}

	@Override
	public PlatypusPopupMenu getPlatypusPopupMenu() {
		return menu;
	}

	protected HandlerRegistration menuTriggerReg;

	@Override
	public void setPlatypusPopupMenu(PlatypusPopupMenu aMenu) {
		if (menu != aMenu) {
			if (menuTriggerReg != null)
				menuTriggerReg.removeHandler();
			menu = aMenu;
			if (menu != null) {
				menuTriggerReg = super.addDomHandler(new ContextMenuHandler() {

					@Override
					public void onContextMenu(ContextMenuEvent event) {
						event.preventDefault();
						event.stopPropagation();
						menu.setPopupPosition(event.getNativeEvent().getClientX(), event.getNativeEvent().getClientY());
						menu.show();
					}
				}, ContextMenuEvent.getType());
			}
		}
	}

	@Override
	public String getJsName() {
		return name;
	}

	@Override
	public void setJsName(String aValue) {
		name = aValue;
                setName(name);
	}

        @Override
	public JavaScriptObject getPublished() {
		return published;
	}

	@Override
	public void setPublished(JavaScriptObject aValue) {
		if (published != aValue) {
			published = aValue;
			if (published != null) {
				publish(this, aValue);
			}
		}
	}

	private native static void publish(HasPublished aWidget, JavaScriptObject aPublished)/*-{
	}-*/;
}