| /******************************************************************************* |
| * Copyright (c) 2000, 2007 IBM Corporation and others. |
| * 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 |
| * |
| |
| *******************************************************************************/ |
| package org.eclipse.dltk.internal.ui.refactoring.reorg; |
| |
| import java.util.ArrayList; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.dltk.core.IModelElement; |
| import org.eclipse.dltk.core.IProjectFragment; |
| import org.eclipse.dltk.core.IScriptModel; |
| import org.eclipse.dltk.core.ModelException; |
| import org.eclipse.dltk.internal.corext.refactoring.reorg.IReorgDestinationValidator; |
| import org.eclipse.dltk.internal.ui.StandardModelElementContentProvider; |
| import org.eclipse.dltk.ui.DLTKUIPlugin; |
| |
| |
| |
| public final class DestinationContentProvider extends StandardModelElementContentProvider { |
| |
| private IReorgDestinationValidator fValidator; |
| |
| public DestinationContentProvider(IReorgDestinationValidator validator) { |
| super(true); |
| fValidator= validator; |
| } |
| |
| public boolean hasChildren(Object element) { |
| if (element instanceof IModelElement){ |
| IModelElement modelElement= (IModelElement) element; |
| if (! fValidator.canChildrenBeDestinations(modelElement)) |
| return false; |
| if (modelElement.getElementType() == IModelElement.PROJECT_FRAGMENT){ |
| if (((IProjectFragment)modelElement).isArchive()) |
| return false; |
| } |
| } else if (element instanceof IResource) { |
| IResource resource= (IResource) element; |
| if (! fValidator.canChildrenBeDestinations(resource)) |
| return false; |
| } |
| return super.hasChildren(element); |
| } |
| |
| public Object[] getChildren(Object parentElement) { |
| try { |
| if (parentElement instanceof IScriptModel) { |
| return concatenate(getScriptProjects((IScriptModel)parentElement), getOpenNonScriptProjects((IScriptModel)parentElement)); |
| } else { |
| Object[] children= super.getChildren(parentElement); |
| ArrayList result= new ArrayList(children.length); |
| for (int i= 0; i < children.length; i++) { |
| if (children[i] instanceof IModelElement) { |
| IModelElement modelElement= (IModelElement) children[i]; |
| if (fValidator.canElementBeDestination(modelElement) || fValidator.canChildrenBeDestinations(modelElement)) |
| result.add(modelElement); |
| } else if (children[i] instanceof IResource) { |
| IResource resource= (IResource) children[i]; |
| if (fValidator.canElementBeDestination(resource) || fValidator.canChildrenBeDestinations(resource)) |
| result.add(resource); |
| } |
| } |
| return result.toArray(); |
| } |
| } catch (ModelException e) { |
| DLTKUIPlugin.log(e); |
| return new Object[0]; |
| } |
| } |
| |
| private static Object[] getOpenNonScriptProjects(IScriptModel model) throws ModelException { |
| Object[] nonScriptProjects= model.getForeignResources(); |
| ArrayList result= new ArrayList(nonScriptProjects.length); |
| for (int i= 0; i < nonScriptProjects.length; i++) { |
| IProject project = (IProject) nonScriptProjects[i]; |
| if (project.isOpen()) |
| result.add(project); |
| } |
| return result.toArray(); |
| } |
| |
| } |