| /******************************************************************************* |
| * Copyright (c) 2004, 2015 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 - Initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.tools.resources; |
| |
| import java.util.*; |
| import org.eclipse.core.internal.localstore.IHistoryStore; |
| import org.eclipse.core.internal.resources.FileState; |
| import org.eclipse.core.internal.resources.Workspace; |
| import org.eclipse.core.resources.*; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.Path; |
| import org.eclipse.core.tools.CoreToolsPlugin; |
| import org.eclipse.jface.action.*; |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jface.viewers.*; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.graphics.Image; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.ui.*; |
| import org.eclipse.ui.editors.text.EditorsUI; |
| import org.eclipse.ui.part.DrillDownAdapter; |
| import org.eclipse.ui.part.ViewPart; |
| |
| /** |
| * Tree viewer class used to construct a view on the local history store. The |
| * tree navigates over the actual contents of the history store rather than |
| * going to the navigator and asking each file for its list of file states. This allows |
| * the browser to see the deleted files for containers. |
| */ |
| public class LocalHistoryBrowserView extends ViewPart { |
| TreeViewer viewer; |
| DrillDownAdapter drillDownAdapter; |
| Action refreshAction; |
| Action doubleClickAction; |
| |
| class NameSorter extends ViewerSorter { |
| // empty impl |
| } |
| |
| class FileStateEditorInput implements IStorageEditorInput { |
| private IFileState state; |
| |
| public FileStateEditorInput(IFileState state) { |
| super(); |
| this.state = state; |
| } |
| |
| @Override |
| public IStorage getStorage() { |
| return state; |
| } |
| |
| @Override |
| public boolean exists() { |
| return false; |
| } |
| |
| @Override |
| public ImageDescriptor getImageDescriptor() { |
| return null; |
| } |
| |
| @Override |
| public String getName() { |
| if (state instanceof FileState) |
| return ((FileState) state).getUUID() + " (" + state.getFullPath() + ')'; //$NON-NLS-1$ |
| return state.getFullPath().toString(); |
| } |
| |
| @Override |
| public IPersistableElement getPersistable() { |
| return null; |
| } |
| |
| @Override |
| public String getToolTipText() { |
| return null; |
| } |
| |
| @Override |
| public <T> T getAdapter(Class<T> adapter) { |
| return null; |
| } |
| } |
| |
| class Node { |
| |
| Node parent; |
| String name; |
| ArrayList<Object> children; |
| |
| public Node(Node parent, String name) { |
| super(); |
| this.parent = parent; |
| this.name = name; |
| this.children = new ArrayList<Object>(); |
| } |
| |
| public void addChild(Object child) { |
| children.add(child); |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public Node getParent() { |
| return parent; |
| } |
| |
| public Object[] getChildren() { |
| return children.toArray(new Object[0]); |
| } |
| |
| public Object getChild(String childName) { |
| for (Object child : children) { |
| if (child instanceof Node) { |
| if (((Node) child).getName().equals(childName)) |
| return child; |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public String toString() { |
| return name; |
| } |
| } |
| |
| class ViewContentProvider implements IStructuredContentProvider, ITreeContentProvider { |
| private IHistoryStore store = ((Workspace) ResourcesPlugin.getWorkspace()).getFileSystemManager().getHistoryStore(); |
| |
| private Node invisibleRoot; |
| |
| @Override |
| public void inputChanged(Viewer v, Object oldInput, Object newInput) { |
| // do nothing |
| } |
| |
| @Override |
| public void dispose() { |
| // do nothing |
| } |
| |
| @Override |
| public Object[] getElements(Object parent) { |
| if (parent.equals(getViewSite())) { |
| if (invisibleRoot == null) |
| initialize(); |
| return getChildren(invisibleRoot); |
| } |
| return getChildren(parent); |
| } |
| |
| @Override |
| public Object getParent(Object child) { |
| return child instanceof Node ? ((Node) child).getParent() : null; |
| } |
| |
| @Override |
| public Object[] getChildren(Object parent) { |
| return parent instanceof Node ? ((Node) parent).getChildren() : new Object[0]; |
| } |
| |
| @Override |
| public boolean hasChildren(Object parent) { |
| return parent instanceof Node ? ((Node) parent).getChildren().length != 0 : false; |
| } |
| |
| public void initialize() { |
| invisibleRoot = new Node(null, "/"); //$NON-NLS-1$ |
| Set<IPath> allFiles = store.allFiles(Path.ROOT, IResource.DEPTH_INFINITE, null); |
| for (IPath path : allFiles) { |
| Node current = invisibleRoot; |
| String[] segments = path.segments(); |
| for (int i = 0; i < segments.length; i++) { |
| Object child = current.getChild(segments[i]); |
| if (child == null) { |
| child = new Node(current, segments[i]); |
| current.addChild(child); |
| } |
| current = (Node) child; |
| } |
| IFileState[] states = store.getStates(path, null); |
| for (int i = 0; i < states.length; i++) |
| current.addChild(states[i]); |
| } |
| } |
| } |
| |
| class ViewLabelProvider extends LabelProvider { |
| |
| @Override |
| public String getText(Object obj) { |
| return obj.toString(); |
| } |
| |
| @Override |
| public Image getImage(Object obj) { |
| String imageKey = ISharedImages.IMG_OBJ_FOLDER; |
| if (obj instanceof IFileState) |
| imageKey = ISharedImages.IMG_OBJ_ELEMENT; |
| return PlatformUI.getWorkbench().getSharedImages().getImage(imageKey); |
| } |
| } |
| |
| public LocalHistoryBrowserView() { |
| super(); |
| } |
| |
| @Override |
| public void createPartControl(Composite parent) { |
| viewer = new TreeViewer(parent, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL); |
| drillDownAdapter = new DrillDownAdapter(viewer); |
| viewer.setContentProvider(new ViewContentProvider()); |
| viewer.setLabelProvider(new ViewLabelProvider()); |
| viewer.setInput(getViewSite()); |
| viewer.setSorter(new NameSorter()); |
| makeActions(); |
| hookContextMenu(); |
| hookDoubleClickAction(); |
| contributeToActionBars(); |
| } |
| |
| private void hookContextMenu() { |
| MenuManager menuMgr = new MenuManager("#PopupMenu"); //$NON-NLS-1$ |
| menuMgr.setRemoveAllWhenShown(true); |
| menuMgr.addMenuListener(new IMenuListener() { |
| @Override |
| public void menuAboutToShow(IMenuManager manager) { |
| LocalHistoryBrowserView.this.fillContextMenu(manager); |
| } |
| }); |
| Menu menu = menuMgr.createContextMenu(viewer.getControl()); |
| viewer.getControl().setMenu(menu); |
| getSite().registerContextMenu(menuMgr, viewer); |
| } |
| |
| private void contributeToActionBars() { |
| IActionBars bars = getViewSite().getActionBars(); |
| fillLocalPullDown(bars.getMenuManager()); |
| fillLocalToolBar(bars.getToolBarManager()); |
| } |
| |
| private void fillLocalPullDown(IMenuManager manager) { |
| manager.add(refreshAction); |
| } |
| |
| protected void fillContextMenu(IMenuManager manager) { |
| manager.add(refreshAction); |
| manager.add(new Separator()); |
| drillDownAdapter.addNavigationActions(manager); |
| // Other plug-ins can contribute there actions here |
| manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS)); |
| } |
| |
| private void fillLocalToolBar(IToolBarManager manager) { |
| manager.add(refreshAction); |
| manager.add(new Separator()); |
| drillDownAdapter.addNavigationActions(manager); |
| } |
| |
| private void makeActions() { |
| refreshAction = new Action() { |
| @Override |
| public void run() { |
| ((ViewContentProvider) viewer.getContentProvider()).initialize(); |
| showMessage("View refreshed."); //$NON-NLS-1$ |
| } |
| }; |
| refreshAction.setText("Refresh View"); //$NON-NLS-1$ |
| refreshAction.setToolTipText("Refresh View"); //$NON-NLS-1$ |
| refreshAction.setImageDescriptor(CoreToolsPlugin.createImageDescriptor("refresh.gif")); //$NON-NLS-1$ |
| |
| doubleClickAction = new Action() { |
| @Override |
| public void run() { |
| ISelection selection = viewer.getSelection(); |
| Object obj = ((IStructuredSelection) selection).getFirstElement(); |
| if (obj instanceof IFileState) { |
| // Show the file contents |
| IFileState state = (IFileState) obj; |
| IWorkbench workbench = CoreToolsPlugin.getDefault().getWorkbench(); |
| IEditorRegistry editorRegistry = workbench.getEditorRegistry(); |
| IEditorDescriptor descriptor = editorRegistry.getDefaultEditor(state.getName()); |
| String editorID = descriptor == null ? EditorsUI.DEFAULT_TEXT_EDITOR_ID : descriptor.getId(); |
| IWorkbenchPage page = workbench.getActiveWorkbenchWindow().getActivePage(); |
| try { |
| page.openEditor(new FileStateEditorInput(state), editorID); |
| } catch (PartInitException e) { |
| e.printStackTrace(); |
| } |
| } else if (obj instanceof Node) { |
| // TODO expand/collapse tree node |
| } |
| } |
| }; |
| } |
| |
| private void hookDoubleClickAction() { |
| viewer.addDoubleClickListener(new IDoubleClickListener() { |
| @Override |
| public void doubleClick(DoubleClickEvent event) { |
| doubleClickAction.run(); |
| } |
| }); |
| } |
| |
| protected void showMessage(String message) { |
| MessageDialog.openInformation(viewer.getControl().getShell(), "Local History Browser", message); //$NON-NLS-1$ |
| } |
| |
| /** |
| * Passing the focus request to the viewer's control. |
| */ |
| @Override |
| public void setFocus() { |
| viewer.getControl().setFocus(); |
| } |
| } |