/*
* Copyright (c) 2010, grossmann
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the jo-widgets.org nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL jo-widgets.org BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
* DAMAGE.
*/
package org.jowidgets.impl.base.delegate;
import org.jowidgets.api.controller.IParentListener;
import org.jowidgets.api.controller.IParentObservable;
import org.jowidgets.api.widgets.IComponent;
import org.jowidgets.api.widgets.IContainer;
import org.jowidgets.api.widgets.IControl;
import org.jowidgets.api.widgets.IPopupMenu;
import org.jowidgets.spi.widgets.IControlSpi;
import org.jowidgets.tools.controller.ParentObservable;
public class ControlDelegate extends DisposableDelegate implements IParentObservable<IContainer> {
private final IControl control;
private final PopupMenuCreationDelegate popupMenuCreationDelegate;
private final ParentObservable<IContainer> parentObservable;
private IContainer parent;
private boolean onRemoveByDispose;
public ControlDelegate(final IControlSpi controlSpi, final IControl control) {
super();
this.control = control;
this.popupMenuCreationDelegate = new PopupMenuCreationDelegate(controlSpi, control);
this.parentObservable = new ParentObservable<IContainer>();
this.onRemoveByDispose = false;
}
public IContainer getParent() {
return parent;
}
public void setParent(final IComponent parent) {
if (this.parent == null) {
if (parent instanceof IContainer) {
final IContainer parentContainer = (IContainer) parent;
this.parent = parentContainer;
parentObservable.fireParentChanged(null, parentContainer);
}
else {
throw new IllegalArgumentException("Parent must be instance of '" + IContainer.class.getName() + "'");
}
}
else if (!isReparentable()) {
throw new IllegalStateException("Widget is not reparentable");
}
}
public boolean isReparentable() {
//TODO MG will be implemented later
return false;
}
@Override
public void dispose() {
if (!isDisposed()) {
if (parent != null && parent.getChildren().contains(control) && !onRemoveByDispose) {
onRemoveByDispose = true;
parent.remove(control); //this will invoke dispose by the parent container
onRemoveByDispose = false;
}
else {
popupMenuCreationDelegate.dispose();
super.dispose();
}
}
}
public IPopupMenu createPopupMenu() {
return popupMenuCreationDelegate.createPopupMenu();
}
@Override
public void addParentListener(final IParentListener<IContainer> listener) {
parentObservable.addParentListener(listener);
}
@Override
public void removeParentListener(final IParentListener<IContainer> listener) {
parentObservable.removeParentListener(listener);
}
}