| /******************************************************************************* |
| * Copyright (c) 2000, 2008 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 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| * Les Jones <lesojones@gmail.com> - bug 191365 |
| *******************************************************************************/ |
| package org.eclipse.pde.internal.ui.views.plugins; |
| |
| import java.io.File; |
| import org.eclipse.core.resources.IStorage; |
| import org.eclipse.core.runtime.jobs.*; |
| import org.eclipse.jdt.core.*; |
| import org.eclipse.jdt.ui.StandardJavaElementContentProvider; |
| import org.eclipse.jface.viewers.*; |
| import org.eclipse.pde.core.plugin.IPluginModelBase; |
| import org.eclipse.pde.internal.core.*; |
| import org.eclipse.pde.internal.ui.elements.DefaultContentProvider; |
| import org.eclipse.ui.progress.DeferredTreeContentManager; |
| import org.eclipse.ui.progress.IDeferredWorkbenchAdapter; |
| |
| public class PluginsContentProvider extends DefaultContentProvider implements ITreeContentProvider, IStructuredContentProvider { |
| |
| private PluginsView fView; |
| private StandardJavaElementContentProvider fJavaProvider; |
| private DeferredTreeContentManager fManager = null; |
| |
| /** |
| * Constructor for PluginsContentProvider. |
| */ |
| public PluginsContentProvider(PluginsView view) { |
| fView = view; |
| fJavaProvider = new StandardJavaElementContentProvider(); |
| } |
| |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| if (newInput == null) { |
| if (fManager != null) |
| fManager.cancel(oldInput); |
| return; |
| } |
| fManager = new DeferredTreeContentManager((AbstractTreeViewer) viewer); |
| fManager.addUpdateCompleteListener(getCompletionJobListener()); |
| fView.updateTitle(newInput); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object) |
| */ |
| public Object[] getChildren(Object parentElement) { |
| if (parentElement instanceof IDeferredWorkbenchAdapter) { |
| if (PDECore.getDefault().getModelManager().isInitialized()) |
| return PDECore.getDefault().getModelManager().getAllModels(); |
| Object[] children = fManager.getChildren(parentElement); |
| return children; |
| } |
| if (parentElement instanceof IPluginModelBase) { |
| IPluginModelBase model = (IPluginModelBase) parentElement; |
| if (model != null) { |
| File file = new File(model.getInstallLocation()); |
| if (!file.isFile()) { |
| FileAdapter adapter = new ModelFileAdapter(model, file, PDECore.getDefault().getSearchablePluginsManager()); |
| return adapter.getChildren(); |
| } |
| } |
| } |
| |
| if (parentElement instanceof FileAdapter) { |
| return ((FileAdapter) parentElement).getChildren(); |
| } |
| |
| if (parentElement instanceof IPackageFragmentRoot || parentElement instanceof IPackageFragment || parentElement instanceof ICompilationUnit || parentElement instanceof IStorage) |
| return fJavaProvider.getChildren(parentElement); |
| |
| return new Object[0]; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object) |
| */ |
| public Object getParent(Object element) { |
| if (element instanceof PluginModelManager) { |
| return null; |
| } |
| if (element instanceof IPluginModelBase) { |
| return PDECore.getDefault().getModelManager(); |
| } |
| if (element instanceof ModelFileAdapter) { |
| return ((ModelFileAdapter) element).getModel(); |
| } |
| if (element instanceof FileAdapter) { |
| return ((FileAdapter) element).getParent(); |
| } |
| if (element instanceof IJarEntryResource) { |
| return ((IJarEntryResource) element).getParent(); |
| } |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object) |
| */ |
| public boolean hasChildren(Object element) { |
| if (element instanceof IDeferredWorkbenchAdapter) |
| return fManager.mayHaveChildren(element); |
| if (element instanceof IPluginModelBase) { |
| IPluginModelBase model = (IPluginModelBase) element; |
| return model.getUnderlyingResource() == null && !new File(model.getInstallLocation()).isFile(); |
| } |
| if (element instanceof FileAdapter) { |
| FileAdapter fileAdapter = (FileAdapter) element; |
| return fileAdapter.hasChildren(); |
| } |
| if (element instanceof IPackageFragmentRoot || element instanceof IPackageFragment || element instanceof ICompilationUnit || element instanceof IStorage) |
| return fJavaProvider.hasChildren(element); |
| return false; |
| } |
| |
| /** |
| * @see IStructuredContentProvider#getElements(Object) |
| */ |
| public Object[] getElements(Object inputElement) { |
| return getChildren(inputElement); |
| } |
| |
| protected IJobChangeListener getCompletionJobListener() { |
| return new JobChangeAdapter() { |
| |
| public void done(IJobChangeEvent event) { |
| if (event.getResult().isOK()) |
| fView.updateContentDescription(); |
| } |
| |
| }; |
| } |
| |
| } |