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/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Remi Schnekenburger (CEA LIST) remi.schnekenburger@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.views.properties.tabbed.customization.dialog.actions;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.papyrus.views.properties.runtime.view.PredefinedFragmentDescriptorState;
import org.eclipse.papyrus.views.properties.tabbed.core.view.SectionDescriptorState;
import org.eclipse.papyrus.views.properties.tabbed.core.view.SectionSetDescriptorState;
import org.eclipse.papyrus.views.properties.tabbed.customization.Activator;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.swt.widgets.TreeItem;
import org.eclipse.uml2.uml.Stereotype;
/**
* Menu creator for {@link PredefinedFragmentDescriptorState}
*/
public class PredefinedFragmentMenuCreator extends AbstractMenuCreator {
/** element on which the menu should be created */
private final PredefinedFragmentDescriptorState predefinedFragmentDescriptorState;
/** menu manager used to create elements */
private MenuManager manager;
/**
* Creates a new ContainerMenuCreator.
*
* @param containerDescriptorState
* the state on which this menu is created
*/
public PredefinedFragmentMenuCreator(PredefinedFragmentDescriptorState predefinedFragmentDescriptorState, SectionSetDescriptorState sectionSetDescriptorState, EClassifier currentMetaclass, Stereotype currentStereotype) {
super(sectionSetDescriptorState, currentMetaclass, currentStereotype);
this.predefinedFragmentDescriptorState = predefinedFragmentDescriptorState;
}
/**
* Returns the current selected container
*
* @return the current selected container or null
*/
protected PredefinedFragmentDescriptorState getSelectedPredefinedFragmentDescriptorState(Object parent) {
if(parent instanceof Tree) {
TreeItem[] selectedItems = ((Tree)parent).getSelection();
if(selectedItems.length < 1) {
Activator.log.warn("Impossible to find the current selection in the tree");
return null;
}
TreeItem selectedItem = selectedItems[0];
Object data = selectedItem.getData();
if(data instanceof PredefinedFragmentDescriptorState) {
return ((PredefinedFragmentDescriptorState)data);
}
}
return null;
}
/**
* {@inheritDoc}
*/
public void dispose() {
if(manager != null) {
Menu menu = manager.getMenu();
if(menu != null) {
menu.dispose();
menu = null;
}
}
}
/**
* {@inheritDoc}
*/
public Menu getMenu(final Control parent) {
if(manager == null) {
manager = new MenuManager();
}
Menu menu = manager.getMenu();
if(menu != null) {
menu.dispose();
menu = null;
}
manager.removeAll();
menu = manager.createContextMenu(parent);
IAction removeAction = new Action("Remove Fragment", Activator.imageDescriptorFromPlugin(Activator.ID, "/icons/delete.gif")) {
/**
* {@inheritDoc}
*/
@Override
public void run() {
// remove this section descriptor state from its parent
if(parent instanceof Tree) {
TreeItem[] selectedItems = ((Tree)parent).getSelection();
if(selectedItems.length < 1) {
Activator.log.warn("Impossible to find the current selection in the tree");
return;
}
TreeItem selectedItem = selectedItems[0];
TreeItem parentItem = selectedItem.getParentItem();
// parent item should be the section descriptor set
if(parentItem == null) {
Activator.log.warn("Impossible to find the parent for current selection in the tree ");
return;
}
Object parent = parentItem.getData();
// test the parent is a FragmentDescriptorState
if((parent instanceof SectionDescriptorState)) {
((SectionDescriptorState)parent).removeFragmentDescriptorState(predefinedFragmentDescriptorState);
}
}
}
/**
* {@inheritDoc}
*/
@Override
public boolean isEnabled() {
PredefinedFragmentDescriptorState state = getSelectedPredefinedFragmentDescriptorState(parent);
if(state == null || state.isReadOnly()) {
setEnabled(false);
}
return super.isEnabled();
}
};
manager.add(removeAction);
return menu;
}
}
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