| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Eclipse Public License, Version 1.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.eclipse.org/org/documents/epl-v10.php |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.ide.eclipse.adt.internal.ui; |
| |
| import com.android.ide.common.resources.ResourceFile; |
| import com.android.ide.common.resources.ResourceItem; |
| import com.android.ide.common.resources.ResourceRepository; |
| import com.android.resources.ResourceType; |
| |
| import org.eclipse.jface.viewers.ITreeContentProvider; |
| import org.eclipse.jface.viewers.Viewer; |
| |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** |
| * Content provider for the Resource Explorer TreeView. |
| * Each level of the tree is represented by a different class. |
| * <ul> |
| * <li>{@link ResourceType}. This represents the list of existing Resource Type present |
| * in the resources. This can be matched to the subclasses inside the class <code>R</code> |
| * </li> |
| * <ul> |
| * <li>{@link ResourceItem}. This represents one resource (which can existing in various alternate |
| * versions). This is similar to the resource Ids defined as <code>R.sometype.id</code>. |
| * </li> |
| * <ul> |
| * <li>{@link ResourceFile}. (optional) This represents a particular version of the |
| * {@link ResourceItem}. It is displayed as a list of resource qualifier. |
| * </li> |
| * </ul> |
| * </ul> |
| * </ul> |
| * |
| * @see ResourceLabelProvider |
| */ |
| public class ResourceContentProvider implements ITreeContentProvider { |
| |
| /** |
| * The current ProjectResources being displayed. |
| */ |
| private ResourceRepository mResources; |
| |
| private boolean mFullLevels; |
| |
| /** |
| * Constructs a new content providers for resource display. |
| * @param fullLevels if <code>true</code> the content provider will suppport all 3 levels. If |
| * <code>false</code>, only two levels are provided. |
| */ |
| public ResourceContentProvider(boolean fullLevels) { |
| mFullLevels = fullLevels; |
| } |
| |
| @Override |
| public Object[] getChildren(Object parentElement) { |
| if (parentElement instanceof ResourceType) { |
| Object[] array = mResources.getResourceItemsOfType( |
| (ResourceType)parentElement).toArray(); |
| Arrays.sort(array); |
| return array; |
| } else if (mFullLevels && parentElement instanceof ResourceItem) { |
| return ((ResourceItem)parentElement).getSourceFileArray(); |
| } |
| return null; |
| } |
| |
| @Override |
| public Object getParent(Object element) { |
| // pass |
| return null; |
| } |
| |
| @Override |
| public boolean hasChildren(Object element) { |
| if (element instanceof ResourceType) { |
| return mResources.hasResourcesOfType((ResourceType)element); |
| } else if (mFullLevels && element instanceof ResourceItem) { |
| return ((ResourceItem)element).hasAlternates(); |
| } |
| return false; |
| } |
| |
| @Override |
| public Object[] getElements(Object inputElement) { |
| if (inputElement instanceof ResourceRepository) { |
| if ((ResourceRepository)inputElement == mResources) { |
| // get the top level resources. |
| List<ResourceType> types = mResources.getAvailableResourceTypes(); |
| Collections.sort(types); |
| return types.toArray(); |
| } |
| } |
| |
| return new Object[0]; |
| } |
| |
| @Override |
| public void dispose() { |
| // pass |
| } |
| |
| @Override |
| public void inputChanged(Viewer viewer, Object oldInput, Object newInput) { |
| if (newInput instanceof ResourceRepository) { |
| mResources = (ResourceRepository)newInput; |
| } |
| } |
| } |