| /******************************************************************************* |
| * Copyright (c) 2000, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| |
| package org.eclipse.jdt.astview.views; |
| |
| import java.text.MessageFormat; |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| |
| import org.eclipse.core.filebuffers.FileBuffers; |
| import org.eclipse.core.filebuffers.IFileBuffer; |
| import org.eclipse.core.filebuffers.IFileBufferListener; |
| import org.eclipse.core.filebuffers.ITextFileBuffer; |
| |
| import org.eclipse.jdt.astview.ASTViewImages; |
| import org.eclipse.jdt.astview.ASTViewPlugin; |
| import org.eclipse.jdt.astview.EditorUtility; |
| import org.eclipse.jdt.astview.NodeFinder; |
| import org.eclipse.jdt.astview.TreeInfoCollector; |
| |
| import org.eclipse.jdt.core.IClassFile; |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.IOpenable; |
| import org.eclipse.jdt.core.IPackageFragment; |
| import org.eclipse.jdt.core.IProblemRequestor; |
| import org.eclipse.jdt.core.JavaCore; |
| import org.eclipse.jdt.core.JavaModelException; |
| import org.eclipse.jdt.core.WorkingCopyOwner; |
| import org.eclipse.jdt.core.compiler.IProblem; |
| import org.eclipse.jdt.core.dom.AST; |
| import org.eclipse.jdt.core.dom.ASTNode; |
| import org.eclipse.jdt.core.dom.ASTParser; |
| import org.eclipse.jdt.core.dom.CompilationUnit; |
| import org.eclipse.jdt.core.dom.IBinding; |
| |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.custom.SashForm; |
| import org.eclipse.swt.custom.ViewForm; |
| import org.eclipse.swt.events.FocusAdapter; |
| import org.eclipse.swt.events.FocusEvent; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Label; |
| import org.eclipse.swt.widgets.Menu; |
| import org.eclipse.swt.widgets.Tree; |
| import org.eclipse.swt.widgets.TreeItem; |
| |
| import org.eclipse.jface.action.Action; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.action.IMenuListener; |
| import org.eclipse.jface.action.IMenuManager; |
| import org.eclipse.jface.action.IToolBarManager; |
| import org.eclipse.jface.action.MenuManager; |
| import org.eclipse.jface.action.Separator; |
| import org.eclipse.jface.dialogs.ErrorDialog; |
| import org.eclipse.jface.text.DocumentEvent; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IDocumentListener; |
| import org.eclipse.jface.text.ITextSelection; |
| import org.eclipse.jface.util.ListenerList; |
| import org.eclipse.jface.viewers.AbstractTreeViewer; |
| import org.eclipse.jface.viewers.DoubleClickEvent; |
| import org.eclipse.jface.viewers.IDoubleClickListener; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionChangedListener; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.jface.viewers.SelectionChangedEvent; |
| import org.eclipse.jface.viewers.StructuredSelection; |
| import org.eclipse.jface.viewers.TreeViewer; |
| |
| import org.eclipse.ui.IActionBars; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.IPartListener2; |
| import org.eclipse.ui.ISelectionListener; |
| import org.eclipse.ui.ISelectionService; |
| import org.eclipse.ui.ISharedImages; |
| import org.eclipse.ui.IViewSite; |
| import org.eclipse.ui.IWorkbenchActionConstants; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchPartReference; |
| import org.eclipse.ui.PartInitException; |
| import org.eclipse.ui.actions.ActionFactory; |
| import org.eclipse.ui.part.DrillDownAdapter; |
| import org.eclipse.ui.part.IShowInSource; |
| import org.eclipse.ui.part.ShowInContext; |
| import org.eclipse.ui.part.ViewPart; |
| import org.eclipse.ui.texteditor.ITextEditor; |
| import org.eclipse.ui.texteditor.IWorkbenchActionDefinitionIds; |
| |
| import org.eclipse.jdt.ui.JavaUI; |
| import org.eclipse.jdt.ui.actions.ShowInPackageViewAction; |
| |
| public class ASTView extends ViewPart implements IShowInSource { |
| |
| private class ASTViewSelectionProvider implements ISelectionProvider { |
| ListenerList fListeners= new ListenerList(); |
| |
| public void addSelectionChangedListener(ISelectionChangedListener listener) { |
| fListeners.add(listener); |
| } |
| |
| public ISelection getSelection() { |
| IStructuredSelection selection= (IStructuredSelection) fViewer.getSelection(); |
| ArrayList externalSelection= new ArrayList(); |
| for (Iterator iter= selection.iterator(); iter.hasNext();) { |
| Object element= iter.next(); |
| if (element instanceof JavaElement) |
| externalSelection.add(((JavaElement) element).getJavaElement()); |
| else |
| ;//TODO: support for other node types? |
| } |
| return new StructuredSelection(externalSelection); |
| } |
| |
| public void removeSelectionChangedListener(ISelectionChangedListener listener) { |
| fListeners.remove(listener); |
| } |
| |
| public void setSelection(ISelection selection) { |
| //not supported |
| } |
| } |
| |
| private class ASTLevelToggle extends Action { |
| private int fLevel; |
| |
| public ASTLevelToggle(String label, int level) { |
| super(label, AS_RADIO_BUTTON); |
| fLevel= level; |
| if (level == getCurrentASTLevel()) { |
| setChecked(true); |
| } |
| } |
| |
| public int getLevel() { |
| return fLevel; |
| } |
| |
| public void run() { |
| setASTLevel(fLevel, true); |
| } |
| } |
| |
| private static class ListenerMix implements ISelectionListener, IFileBufferListener, IDocumentListener, ISelectionChangedListener, IDoubleClickListener, IPartListener2 { |
| |
| private boolean fASTViewVisible= true; |
| private ASTView fView; |
| |
| public ListenerMix(ASTView view) { |
| fView= view; |
| } |
| |
| public void dispose() { |
| fView= null; |
| } |
| |
| public void selectionChanged(IWorkbenchPart part, ISelection selection) { |
| if (fASTViewVisible) { |
| fView.handleEditorPostSelectionChanged(part, selection); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.filebuffers.IFileBufferListener#bufferCreated(org.eclipse.core.filebuffers.IFileBuffer) |
| */ |
| public void bufferCreated(IFileBuffer buffer) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.filebuffers.IFileBufferListener#bufferDisposed(org.eclipse.core.filebuffers.IFileBuffer) |
| */ |
| public void bufferDisposed(IFileBuffer buffer) { |
| if (buffer instanceof ITextFileBuffer) { |
| fView.handleDocumentDisposed(((ITextFileBuffer) buffer).getDocument()); |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.filebuffers.IFileBufferListener#bufferContentAboutToBeReplaced(org.eclipse.core.filebuffers.IFileBuffer) |
| */ |
| public void bufferContentAboutToBeReplaced(IFileBuffer buffer) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.filebuffers.IFileBufferListener#bufferContentReplaced(org.eclipse.core.filebuffers.IFileBuffer) |
| */ |
| public void bufferContentReplaced(IFileBuffer buffer) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.filebuffers.IFileBufferListener#stateChanging(org.eclipse.core.filebuffers.IFileBuffer) |
| */ |
| public void stateChanging(IFileBuffer buffer) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.filebuffers.IFileBufferListener#dirtyStateChanged(org.eclipse.core.filebuffers.IFileBuffer, boolean) |
| */ |
| public void dirtyStateChanged(IFileBuffer buffer, boolean isDirty) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.filebuffers.IFileBufferListener#stateValidationChanged(org.eclipse.core.filebuffers.IFileBuffer, boolean) |
| */ |
| public void stateValidationChanged(IFileBuffer buffer, boolean isStateValidated) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.filebuffers.IFileBufferListener#underlyingFileMoved(org.eclipse.core.filebuffers.IFileBuffer, org.eclipse.core.runtime.IPath) |
| */ |
| public void underlyingFileMoved(IFileBuffer buffer, IPath path) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.filebuffers.IFileBufferListener#underlyingFileDeleted(org.eclipse.core.filebuffers.IFileBuffer) |
| */ |
| public void underlyingFileDeleted(IFileBuffer buffer) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.filebuffers.IFileBufferListener#stateChangeFailed(org.eclipse.core.filebuffers.IFileBuffer) |
| */ |
| public void stateChangeFailed(IFileBuffer buffer) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.IDocumentListener#documentAboutToBeChanged(org.eclipse.jface.text.DocumentEvent) |
| */ |
| public void documentAboutToBeChanged(DocumentEvent event) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.IDocumentListener#documentChanged(org.eclipse.jface.text.DocumentEvent) |
| */ |
| public void documentChanged(DocumentEvent event) { |
| fView.handleDocumentChanged(event.getDocument()); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ISelectionChangedListener#selectionChanged(org.eclipse.jface.viewers.SelectionChangedEvent) |
| */ |
| public void selectionChanged(SelectionChangedEvent event) { |
| fView.handleSelectionChanged(event.getSelection()); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.IDoubleClickListener#doubleClick(org.eclipse.jface.viewers.DoubleClickEvent) |
| */ |
| public void doubleClick(DoubleClickEvent event) { |
| fView.handleDoubleClick(event); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener2#partHidden(org.eclipse.ui.IWorkbenchPartReference) |
| */ |
| public void partHidden(IWorkbenchPartReference partRef) { |
| IWorkbenchPart part= partRef.getPart(false); |
| if (part == fView) { |
| fASTViewVisible= false; |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener2#partVisible(org.eclipse.ui.IWorkbenchPartReference) |
| */ |
| public void partVisible(IWorkbenchPartReference partRef) { |
| IWorkbenchPart part= partRef.getPart(false); |
| if (part == fView) { |
| fASTViewVisible= true; |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener2#partActivated(org.eclipse.ui.IWorkbenchPartReference) |
| */ |
| public void partActivated(IWorkbenchPartReference partRef) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener2#partBroughtToTop(org.eclipse.ui.IWorkbenchPartReference) |
| */ |
| public void partBroughtToTop(IWorkbenchPartReference partRef) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener2#partClosed(org.eclipse.ui.IWorkbenchPartReference) |
| */ |
| public void partClosed(IWorkbenchPartReference partRef) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener2#partDeactivated(org.eclipse.ui.IWorkbenchPartReference) |
| */ |
| public void partDeactivated(IWorkbenchPartReference partRef) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener2#partOpened(org.eclipse.ui.IWorkbenchPartReference) |
| */ |
| public void partOpened(IWorkbenchPartReference partRef) { |
| // not interesting |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IPartListener2#partInputChanged(org.eclipse.ui.IWorkbenchPartReference) |
| */ |
| public void partInputChanged(IWorkbenchPartReference partRef) { |
| // not interesting |
| } |
| } |
| |
| private final static String SETTINGS_LINK_WITH_EDITOR= "link_with_editor"; //$NON-NLS-1$ |
| private final static String SETTINGS_USE_RECONCILER= "use_reconciler"; //$NON-NLS-1$ |
| |
| private TreeViewer fViewer; |
| private DrillDownAdapter fDrillDownAdapter; |
| private Action fFocusAction; |
| private Action fRefreshAction; |
| private Action fUseReconcilerAction; |
| private Action fCollapseAction; |
| private Action fExpandAction; |
| private Action fClearAction; |
| private TreeCopyAction fCopyAction; |
| private Action fDoubleClickAction; |
| private Action fLinkWithEditor; |
| |
| private ASTLevelToggle[] fASTVersionToggleActions; |
| private int fCurrentASTLevel; |
| |
| private ITextEditor fEditor; |
| private IOpenable fOpenable; |
| private CompilationUnit fRoot; |
| private IDocument fCurrentDocument; |
| |
| private boolean fDoLinkWithEditor; |
| private boolean fDoUseReconciler; |
| private Object fPreviousDouble; |
| |
| private ListenerMix fSuperListener; |
| |
| private SashForm fSash; |
| private TreeViewer fTray; |
| private ArrayList fTrayRoots; |
| private Action fAddToTrayAction; |
| private ISelectionChangedListener fTrayUpdater; |
| private Action fDeleteAction; |
| |
| public ASTView() { |
| fSuperListener= null; |
| fDoLinkWithEditor= ASTViewPlugin.getDefault().getDialogSettings().getBoolean(SETTINGS_LINK_WITH_EDITOR); |
| fDoUseReconciler= ASTViewPlugin.getDefault().getDialogSettings().getBoolean(SETTINGS_USE_RECONCILER); |
| fCurrentASTLevel= AST.JLS2; |
| } |
| |
| /*(non-Javadoc) |
| * @see org.eclipse.ui.IViewPart#init(org.eclipse.ui.IViewSite) |
| */ |
| public void init(IViewSite site) throws PartInitException { |
| super.setSite(site); |
| if (fSuperListener == null) { |
| fSuperListener= new ListenerMix(this); |
| |
| ISelectionService service= site.getWorkbenchWindow().getSelectionService(); |
| service.addPostSelectionListener(fSuperListener); |
| site.getPage().addPartListener(fSuperListener); |
| FileBuffers.getTextFileBufferManager().addFileBufferListener(fSuperListener); |
| } |
| } |
| |
| public int getCurrentASTLevel() { |
| return fCurrentASTLevel; |
| } |
| |
| public void setInput(ITextEditor editor) throws CoreException { |
| if (fEditor != null) { |
| uninstallModificationListener(); |
| } |
| |
| fEditor= null; |
| fRoot= null; |
| |
| if (editor != null) { |
| IOpenable openable= EditorUtility.getJavaInput(editor); |
| if (openable == null) { |
| throw new CoreException(getErrorStatus("Editor not showing a CU or classfile", null)); //$NON-NLS-1$ |
| } |
| fOpenable= openable; |
| int astLevel= getInitialASTLevel((IJavaElement) openable); |
| |
| ISelection selection= editor.getSelectionProvider().getSelection(); |
| if (selection instanceof ITextSelection) { |
| ITextSelection textSelection= (ITextSelection) selection; |
| fRoot= internalSetInput(openable, textSelection.getOffset(), textSelection.getLength(), astLevel); |
| fEditor= editor; |
| setASTLevel(astLevel, false); |
| } |
| installModificationListener(); |
| } |
| |
| } |
| |
| private int getInitialASTLevel(IJavaElement openable) { |
| IJavaProject project= (IJavaProject) openable.getAncestor(IJavaElement.JAVA_PROJECT); |
| if (JavaCore.VERSION_1_5.equals(project.getOption(JavaCore.COMPILER_SOURCE, true))) { |
| return AST.JLS3; |
| } |
| return AST.JLS2; |
| } |
| |
| private CompilationUnit internalSetInput(IOpenable input, int offset, int length, int astLevel) throws CoreException { |
| if (input.getBuffer() == null) { |
| throw new CoreException(getErrorStatus("Input has no buffer", null)); //$NON-NLS-1$ |
| } |
| |
| try { |
| CompilationUnit root= createAST(input, astLevel); |
| |
| resetView(root); |
| ASTNode node= NodeFinder.perform(root, offset, length); |
| if (node != null) { |
| fViewer.getTree().setRedraw(false); |
| fViewer.setSelection(new StructuredSelection(node), true); |
| fViewer.getTree().setRedraw(true); |
| } |
| return root; |
| |
| } catch (RuntimeException e) { |
| throw new CoreException(getErrorStatus("Could not create AST:\n" + e.getMessage(), e)); //$NON-NLS-1$ |
| } |
| } |
| |
| private void resetView(CompilationUnit root) { |
| if (root == null) |
| setContentDescription("Open a Java editor and press the 'Show AST of active editor' toolbar button"); //$NON-NLS-1$ |
| fViewer.setInput(root); |
| fSash.setMaximizedControl(fViewer.getTree()); |
| fTrayRoots= new ArrayList(); |
| if (fTray != null) |
| fTray.setInput(fTrayRoots); |
| setASTUptoDate(root != null); |
| fClearAction.setEnabled(root != null); |
| } |
| |
| private CompilationUnit createAST(IOpenable input, int astLevel) throws JavaModelException, CoreException { |
| long startTime; |
| long endTime; |
| CompilationUnit root; |
| boolean useReconciler= input instanceof ICompilationUnit && fDoUseReconciler; |
| |
| if (useReconciler) { |
| ICompilationUnit wc= ((ICompilationUnit) input).getWorkingCopy( |
| new WorkingCopyOwner() {/*useless subclass*/}, |
| new IProblemRequestor() { //TODO: strange: don't get bindings when supplying null as problemRequestor |
| public void acceptProblem(IProblem problem) {/*not interested*/} |
| public void beginReporting() {/*not interested*/} |
| public void endReporting() {/*not interested*/} |
| public boolean isActive() { |
| return true; |
| } |
| }, |
| null); |
| try { |
| //make inconsistent (otherwise, no AST is generated): |
| // IBuffer buffer= wc.getBuffer(); |
| // buffer.append(new char[] {' '}); |
| // buffer.replace(buffer.getLength() - 1, 1, new char[0]); |
| |
| startTime= System.currentTimeMillis(); |
| root= wc.reconcile(getCurrentASTLevel(), true, null, null); |
| endTime= System.currentTimeMillis(); |
| } finally { |
| wc.discardWorkingCopy(); |
| } |
| } else { |
| ASTParser parser= ASTParser.newParser(astLevel); |
| parser.setResolveBindings(true); |
| if (input instanceof ICompilationUnit) { |
| parser.setSource((ICompilationUnit) input); |
| } else { |
| parser.setSource((IClassFile) input); |
| } |
| startTime= System.currentTimeMillis(); |
| root= (CompilationUnit) parser.createAST(null); |
| endTime= System.currentTimeMillis(); |
| } |
| if (root == null) { |
| throw new CoreException(getErrorStatus("Could not create AST", null)); //$NON-NLS-1$ |
| } |
| updateContentDescription((IJavaElement) input, root, endTime - startTime, useReconciler); |
| return root; |
| } |
| |
| private void updateContentDescription(IJavaElement element, CompilationUnit root, long time, boolean useReconciler) { |
| String version= root.getAST().apiLevel() == AST.JLS2 ? "AST Level 2" : "AST Level 3"; //$NON-NLS-1$//$NON-NLS-2$ |
| if (useReconciler) |
| version+= ", from reconciler"; //$NON-NLS-1$ |
| TreeInfoCollector collector= new TreeInfoCollector(root); |
| |
| String msg= "{0} ({1}). Creation time: {2,number} ms. Size: {3,number} nodes, {4,number} bytes (AST nodes only)."; //$NON-NLS-1$ |
| Object[] args= { element.getElementName(), version, new Long(time), new Integer(collector.getNumberOfNodes()), new Integer(collector.getSize())}; |
| setContentDescription(MessageFormat.format(msg, args)); |
| |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IWorkbenchPart#dispose() |
| */ |
| public void dispose() { |
| ASTViewPlugin.getDefault().getDialogSettings().put(SETTINGS_LINK_WITH_EDITOR, fDoLinkWithEditor); |
| ASTViewPlugin.getDefault().getDialogSettings().put(SETTINGS_USE_RECONCILER, fDoUseReconciler); |
| |
| if (fSuperListener != null) { |
| if (fEditor != null) { |
| uninstallModificationListener(); |
| } |
| ISelectionService service= getSite().getWorkbenchWindow().getSelectionService(); |
| service.removePostSelectionListener(fSuperListener); |
| getSite().getPage().removePartListener(fSuperListener); |
| FileBuffers.getTextFileBufferManager().removeFileBufferListener(fSuperListener); |
| fSuperListener.dispose(); // removes reference to view |
| fSuperListener= null; |
| } |
| if (fTrayUpdater != null) { |
| fViewer.removePostSelectionChangedListener(fTrayUpdater); |
| fTray.removePostSelectionChangedListener(fTrayUpdater); |
| fTrayUpdater= null; |
| } |
| super.dispose(); |
| } |
| |
| private IStatus getErrorStatus(String message, Throwable th) { |
| return new Status(IStatus.ERROR, ASTViewPlugin.getPluginId(), IStatus.ERROR, message, th); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.ui.IWorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite) |
| */ |
| public void createPartControl(Composite parent) { |
| fSash= new SashForm(parent, SWT.VERTICAL | SWT.SMOOTH); |
| fViewer = new TreeViewer(fSash, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL); |
| fDrillDownAdapter = new DrillDownAdapter(fViewer); |
| fViewer.setContentProvider(new ASTViewContentProvider()); |
| fViewer.setLabelProvider(new ASTViewLabelProvider()); |
| fViewer.addSelectionChangedListener(fSuperListener); |
| fViewer.addDoubleClickListener(fSuperListener); |
| |
| ViewForm trayForm= new ViewForm(fSash, SWT.NONE); |
| Label label= new Label(trayForm, SWT.NONE); |
| label.setText(" Comparison Tray (* = selection in the upper tree):"); //$NON-NLS-1$ |
| trayForm.setTopLeft(label); |
| |
| fTray= new TreeViewer(trayForm, SWT.MULTI | SWT.H_SCROLL | SWT.V_SCROLL); |
| trayForm.setContent(fTray.getTree()); |
| |
| fTrayRoots= new ArrayList(); |
| fTray.setContentProvider(new TrayContentProvider()); |
| final TrayLabelProvider trayLabelProvider= new TrayLabelProvider(); |
| fTray.setLabelProvider(trayLabelProvider); |
| fTray.setAutoExpandLevel(AbstractTreeViewer.ALL_LEVELS); |
| fTrayUpdater= new ISelectionChangedListener() { |
| public void selectionChanged(SelectionChangedEvent event) { |
| IStructuredSelection viewerSelection= (IStructuredSelection) fViewer.getSelection(); |
| if (viewerSelection.size() == 1 && viewerSelection.getFirstElement() instanceof Binding) { |
| trayLabelProvider.setViewerElement((Binding) viewerSelection.getFirstElement()); |
| } else { |
| trayLabelProvider.setViewerElement(null); |
| } |
| } |
| }; |
| fTray.addPostSelectionChangedListener(fTrayUpdater); |
| fViewer.addPostSelectionChangedListener(fTrayUpdater); |
| fTray.addDoubleClickListener(new IDoubleClickListener() { |
| public void doubleClick(DoubleClickEvent event) { |
| performTrayDoubleClick(); |
| } |
| }); |
| fTray.addSelectionChangedListener(new ISelectionChangedListener() { |
| public void selectionChanged(SelectionChangedEvent event) { |
| IStructuredSelection selection= (IStructuredSelection) event.getSelection(); |
| boolean deleteEnabled= false; |
| if (selection.size() == 1 && selection.getFirstElement() instanceof Binding) |
| deleteEnabled= fTray.getTree().isFocusControl(); |
| fDeleteAction.setEnabled(deleteEnabled); |
| } |
| }); |
| fTray.getTree().addFocusListener(new FocusAdapter() { |
| public void focusGained(FocusEvent e) { |
| IStructuredSelection selection= (IStructuredSelection) fTray.getSelection(); |
| boolean deleteEnabled= false; |
| if (selection.size() == 1 && selection.getFirstElement() instanceof Binding) |
| deleteEnabled= true; |
| fDeleteAction.setEnabled(deleteEnabled); |
| } |
| public void focusLost(FocusEvent e) { |
| fDeleteAction.setEnabled(false); |
| } |
| }); |
| //TODO: hook tray context menu with copy & delete actions, ... |
| |
| makeActions(); |
| hookContextMenu(); |
| contributeToActionBars(); |
| getSite().setSelectionProvider(new ASTViewSelectionProvider()); |
| |
| try { |
| IEditorPart part= EditorUtility.getActiveEditor(); |
| if (part instanceof ITextEditor) { |
| setInput((ITextEditor) part); |
| } |
| } catch (CoreException e) { |
| // ignore |
| } |
| if (fOpenable == null) { |
| resetView(null); |
| } else { |
| setASTUptoDate(fOpenable != null); |
| } |
| } |
| |
| |
| private void hookContextMenu() { |
| MenuManager menuMgr = new MenuManager("#PopupMenu"); //$NON-NLS-1$ |
| menuMgr.setRemoveAllWhenShown(true); |
| menuMgr.addMenuListener(new IMenuListener() { |
| public void menuAboutToShow(IMenuManager manager) { |
| ASTView.this.fillContextMenu(manager); |
| } |
| }); |
| Menu menu = menuMgr.createContextMenu(fViewer.getControl()); |
| fViewer.getControl().setMenu(menu); |
| getSite().registerContextMenu(menuMgr, fViewer); |
| } |
| |
| private void contributeToActionBars() { |
| IActionBars bars = getViewSite().getActionBars(); |
| fillLocalPullDown(bars.getMenuManager()); |
| fillLocalToolBar(bars.getToolBarManager()); |
| bars.setGlobalActionHandler(ActionFactory.COPY.getId(), fCopyAction); |
| bars.setGlobalActionHandler(ActionFactory.REFRESH.getId(), fFocusAction); |
| bars.setGlobalActionHandler(ActionFactory.DELETE.getId(), fDeleteAction); |
| } |
| |
| private void fillLocalPullDown(IMenuManager manager) { |
| for (int i= 0; i < fASTVersionToggleActions.length; i++) { |
| manager.add(fASTVersionToggleActions[i]); |
| } |
| manager.add(new Separator()); |
| manager.add(fUseReconcilerAction); |
| manager.add(new Separator()); |
| manager.add(fLinkWithEditor); |
| } |
| |
| protected void fillContextMenu(IMenuManager manager) { |
| manager.add(fFocusAction); |
| manager.add(fRefreshAction); |
| manager.add(fClearAction); |
| manager.add(fCollapseAction); |
| manager.add(fExpandAction); |
| manager.add(new Separator()); |
| manager.add(fCopyAction); |
| if (fAddToTrayAction.isEnabled()) |
| manager.add(fAddToTrayAction); |
| manager.add(new Separator()); |
| |
| fDrillDownAdapter.addNavigationActions(manager); |
| // Other plug-ins can contribute there actions here |
| manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS)); |
| } |
| |
| private void fillLocalToolBar(IToolBarManager manager) { |
| manager.add(fFocusAction); |
| manager.add(fRefreshAction); |
| manager.add(fClearAction); |
| manager.add(new Separator()); |
| fDrillDownAdapter.addNavigationActions(manager); |
| manager.add(new Separator()); |
| manager.add(fExpandAction); |
| manager.add(fCollapseAction); |
| manager.add(fLinkWithEditor); |
| } |
| |
| private void setASTUptoDate(boolean isuptoDate) { |
| fRefreshAction.setEnabled(!isuptoDate && fOpenable != null); |
| } |
| |
| private void makeActions() { |
| fRefreshAction = new Action() { |
| public void run() { |
| performRefresh(); |
| } |
| }; |
| fRefreshAction.setText("&Refresh AST"); //$NON-NLS-1$ |
| fRefreshAction.setToolTipText("Refresh AST"); //$NON-NLS-1$ |
| fRefreshAction.setEnabled(false); |
| ASTViewImages.setImageDescriptors(fRefreshAction, ASTViewImages.REFRESH); |
| |
| fClearAction = new Action() { |
| public void run() { |
| performClear(); |
| } |
| }; |
| fClearAction.setText("&Clear AST"); //$NON-NLS-1$ |
| fClearAction.setToolTipText("Clear AST and release memory"); //$NON-NLS-1$ |
| fClearAction.setEnabled(false); |
| ASTViewImages.setImageDescriptors(fClearAction, ASTViewImages.CLEAR); |
| |
| fUseReconcilerAction = new Action("&Use Reconciler", IAction.AS_CHECK_BOX) { //$NON-NLS-1$ |
| public void run() { |
| performUseReconciler(); |
| } |
| }; |
| fUseReconcilerAction.setChecked(fDoUseReconciler); |
| fUseReconcilerAction.setToolTipText("Use Reconciler to create AST"); //$NON-NLS-1$ |
| fUseReconcilerAction.setEnabled(true); |
| |
| fFocusAction = new Action() { |
| public void run() { |
| performSetFocus(); |
| } |
| }; |
| fFocusAction.setText("&Show AST of active editor"); //$NON-NLS-1$ |
| fFocusAction.setToolTipText("Show AST of active editor"); //$NON-NLS-1$ |
| fFocusAction.setActionDefinitionId("org.eclipse.ui.file.refresh"); //$NON-NLS-1$ |
| ASTViewImages.setImageDescriptors(fFocusAction, ASTViewImages.SETFOCUS); |
| |
| fCollapseAction = new Action() { |
| public void run() { |
| performCollapse(); |
| } |
| }; |
| fCollapseAction.setText("C&ollapse"); //$NON-NLS-1$ |
| fCollapseAction.setToolTipText("Collapse Selected Node"); //$NON-NLS-1$ |
| fCollapseAction.setEnabled(false); |
| ASTViewImages.setImageDescriptors(fCollapseAction, ASTViewImages.COLLAPSE); |
| |
| fExpandAction = new Action() { |
| public void run() { |
| performExpand(); |
| } |
| }; |
| fExpandAction.setText("E&xpand"); //$NON-NLS-1$ |
| fExpandAction.setToolTipText("Expand Selected Node"); //$NON-NLS-1$ |
| fExpandAction.setEnabled(false); |
| ASTViewImages.setImageDescriptors(fExpandAction, ASTViewImages.EXPAND); |
| |
| fCopyAction= new TreeCopyAction(new Tree[] {fViewer.getTree(), fTray.getTree()}); |
| |
| fDoubleClickAction = new Action() { |
| public void run() { |
| performDoubleClick(); |
| } |
| }; |
| |
| fLinkWithEditor = new Action() { |
| public void run() { |
| performLinkWithEditor(); |
| } |
| }; |
| fLinkWithEditor.setChecked(fDoLinkWithEditor); |
| fLinkWithEditor.setText("&Link with Editor"); //$NON-NLS-1$ |
| fLinkWithEditor.setToolTipText("Link With Editor"); //$NON-NLS-1$ |
| ASTViewImages.setImageDescriptors(fLinkWithEditor, ASTViewImages.LINK_WITH_EDITOR); |
| |
| fASTVersionToggleActions= new ASTLevelToggle[] { |
| new ASTLevelToggle("AST Level &2.0", AST.JLS2), //$NON-NLS-1$ |
| new ASTLevelToggle("AST Level &3.0", AST.JLS3) //$NON-NLS-1$ |
| }; |
| |
| fAddToTrayAction= new Action() { |
| public void run() { |
| performAddToTray(); |
| } |
| }; |
| fAddToTrayAction.setText("&Add to Comparison Tray"); //$NON-NLS-1$ |
| fAddToTrayAction.setToolTipText("Add Selected Node to Comparison Tray"); //$NON-NLS-1$ |
| fAddToTrayAction.setEnabled(false); |
| ASTViewImages.setImageDescriptors(fAddToTrayAction, ASTViewImages.ADD_TO_TRAY); |
| |
| fDeleteAction= new Action() { |
| public void run() { |
| performDelete(); |
| } |
| }; |
| fDeleteAction.setText("&Delete"); //$NON-NLS-1$ |
| fDeleteAction.setToolTipText("Delete Binding from Tray"); //$NON-NLS-1$ |
| fDeleteAction.setEnabled(false); |
| fDeleteAction.setImageDescriptor(ASTViewPlugin.getDefault().getWorkbench().getSharedImages().getImageDescriptor(ISharedImages.IMG_TOOL_DELETE)); |
| fDeleteAction.setId(ActionFactory.DELETE.getId()); |
| fDeleteAction.setActionDefinitionId(IWorkbenchActionDefinitionIds.DELETE); |
| } |
| |
| private void refreshAST() throws CoreException { |
| ASTNode node= getASTNodeNearSelection((IStructuredSelection) fViewer.getSelection()); |
| int offset= 0; |
| int length= 0; |
| if (node != null) { |
| offset= node.getStartPosition(); |
| length= node.getLength(); |
| } |
| |
| internalSetInput(fOpenable, offset, length, getCurrentASTLevel()); |
| } |
| |
| protected void setASTLevel(int level, boolean doRefresh) { |
| int oldLevel= fCurrentASTLevel; |
| fCurrentASTLevel= level; |
| if (doRefresh && fOpenable != null && oldLevel != fCurrentASTLevel) { |
| try { |
| refreshAST(); |
| } catch (CoreException e) { |
| showAndLogError("Could not set AST to new level.", e); //$NON-NLS-1$ |
| // set back to old level |
| fCurrentASTLevel= oldLevel; |
| } |
| } |
| // update action state |
| for (int i= 0; i < fASTVersionToggleActions.length; i++) { |
| ASTLevelToggle curr= fASTVersionToggleActions[i]; |
| curr.setChecked(curr.getLevel() == fCurrentASTLevel); |
| } |
| } |
| |
| |
| private ASTNode getASTNodeNearSelection(IStructuredSelection selection) { |
| Object elem= selection.getFirstElement(); |
| if (elem instanceof ASTAttribute) { |
| return ((ASTAttribute) elem).getParentASTNode(); |
| } else if (elem instanceof ASTNode) { |
| return (ASTNode) elem; |
| } |
| return null; |
| } |
| |
| private void installModificationListener() { |
| fCurrentDocument= fEditor.getDocumentProvider().getDocument(fEditor.getEditorInput()); |
| fCurrentDocument.addDocumentListener(fSuperListener); |
| } |
| |
| private void uninstallModificationListener() { |
| if (fCurrentDocument != null) { |
| fCurrentDocument.removeDocumentListener(fSuperListener); |
| fCurrentDocument= null; |
| } |
| } |
| |
| protected void handleDocumentDisposed(IDocument document) { |
| uninstallModificationListener(); |
| } |
| |
| protected void handleDocumentChanged(IDocument document) { |
| setASTUptoDate(false); |
| } |
| |
| protected void handleSelectionChanged(ISelection selection) { |
| fExpandAction.setEnabled(!selection.isEmpty()); |
| fCollapseAction.setEnabled(!selection.isEmpty()); |
| fCopyAction.setEnabled(!selection.isEmpty()); |
| |
| boolean addEnabled= false; |
| IStructuredSelection structuredSelection= (IStructuredSelection) selection; |
| if (structuredSelection.size() == 1) { |
| Object first= structuredSelection.getFirstElement(); |
| if (first instanceof Binding) |
| addEnabled= ((Binding) first).getBinding() != null && fViewer.getTree().isFocusControl(); |
| } |
| fAddToTrayAction.setEnabled(addEnabled); |
| } |
| |
| protected void handleEditorPostSelectionChanged(IWorkbenchPart part, ISelection selection) { |
| if (!fDoLinkWithEditor || !(selection instanceof ITextSelection)) { |
| return; |
| } |
| if (fRoot == null || part != fEditor) { |
| if (part instanceof ITextEditor && (EditorUtility.getJavaInput((ITextEditor) part) != null)) { |
| try { |
| setInput((ITextEditor) part); |
| } catch (CoreException e) { |
| setContentDescription(e.getStatus().getMessage()); |
| } |
| } |
| |
| } else { // fRoot != null && part == fEditor |
| doLinkWithEditor(selection); |
| } |
| } |
| |
| private void doLinkWithEditor(ISelection selection) { |
| ITextSelection textSelection= (ITextSelection) selection; |
| int offset= textSelection.getOffset(); |
| int length= textSelection.getLength(); |
| |
| NodeFinder finder= new NodeFinder(offset, length); |
| fRoot.accept(finder); |
| ASTNode covering= finder.getCoveringNode(); |
| if (covering != null) { |
| fViewer.reveal(covering); |
| fViewer.setSelection(new StructuredSelection(covering)); |
| } |
| } |
| |
| protected void handleDoubleClick(DoubleClickEvent event) { |
| fDoubleClickAction.run(); |
| } |
| |
| protected void performLinkWithEditor() { |
| fDoLinkWithEditor= fLinkWithEditor.isChecked(); |
| if (fDoLinkWithEditor && fEditor != null) |
| doLinkWithEditor(fEditor.getSelectionProvider().getSelection()); |
| } |
| |
| protected void performCollapse() { |
| IStructuredSelection selection= (IStructuredSelection) fViewer.getSelection(); |
| if (selection.isEmpty()) { |
| fViewer.collapseAll(); |
| } else { |
| Object[] selected= selection.toArray(); |
| fViewer.getTree().setRedraw(false); |
| for (int i= 0; i < selected.length; i++) { |
| fViewer.collapseToLevel(selected[i], AbstractTreeViewer.ALL_LEVELS); |
| } |
| fViewer.getTree().setRedraw(true); |
| } |
| } |
| |
| protected void performExpand() { |
| IStructuredSelection selection= (IStructuredSelection) fViewer.getSelection(); |
| if (selection.isEmpty()) { |
| fViewer.expandToLevel(3); |
| } else { |
| Object[] selected= selection.toArray(); |
| fViewer.getTree().setRedraw(false); |
| for (int i= 0; i < selected.length; i++) { |
| fViewer.expandToLevel(selected[i], 3); |
| } |
| fViewer.getTree().setRedraw(true); |
| } |
| } |
| |
| protected void performSetFocus() { |
| IEditorPart part= EditorUtility.getActiveEditor(); |
| if (part instanceof ITextEditor) { |
| try { |
| setInput((ITextEditor) part); |
| } catch (CoreException e) { |
| showAndLogError("Could not set AST view input ", e); //$NON-NLS-1$ |
| } |
| } |
| } |
| |
| protected void performRefresh() { |
| if (fOpenable != null) { |
| try { |
| refreshAST(); |
| } catch (CoreException e) { |
| showAndLogError("Could not set AST view input ", e); //$NON-NLS-1$ |
| } |
| } |
| } |
| |
| protected void performClear() { |
| fOpenable= null; |
| try { |
| setInput(null); |
| } catch (CoreException e) { |
| showAndLogError("Could not reset AST view ", e); //$NON-NLS-1$ |
| } |
| resetView(null); |
| } |
| |
| private void showAndLogError(String message, CoreException e) { |
| ASTViewPlugin.log(message, e); |
| ErrorDialog.openError(getSite().getShell(), "AST View", message, e.getStatus()); //$NON-NLS-1$ |
| } |
| |
| private void showAndLogError(String message, Exception e) { |
| IStatus status= new Status(IStatus.ERROR, ASTViewPlugin.getPluginId(), 0, message, e); |
| ASTViewPlugin.log(status); |
| ErrorDialog.openError(getSite().getShell(), "AST View", null, status); //$NON-NLS-1$ |
| } |
| |
| protected void performUseReconciler() { |
| fDoUseReconciler= fUseReconcilerAction.isChecked(); |
| performRefresh(); |
| } |
| |
| protected void performDoubleClick() { |
| ISelection selection = fViewer.getSelection(); |
| Object obj = ((IStructuredSelection) selection).getFirstElement(); |
| |
| boolean isTrippleClick= (obj == fPreviousDouble); |
| fPreviousDouble= isTrippleClick ? null : obj; |
| |
| if (obj instanceof ExceptionAttribute) { |
| RuntimeException exception= ((ExceptionAttribute) obj).getException(); |
| if (exception != null) { |
| String label= ((ExceptionAttribute) obj).getLabel(); |
| showAndLogError("An error occurred while calculating an AST View Label:\n" + label, exception); //$NON-NLS-1$ |
| return; |
| } |
| } |
| |
| ASTNode node= null; |
| if (obj instanceof ASTNode) { |
| node= (ASTNode) obj; |
| } else if (obj instanceof NodeProperty) { |
| Object val= ((NodeProperty) obj).getNode(); |
| if (val instanceof ASTNode) { |
| node= (ASTNode) val; |
| } |
| } else if (obj instanceof Binding) { |
| IBinding binding= ((Binding) obj).getBinding(); |
| ASTNode declaring= fRoot.findDeclaringNode(binding); |
| if (declaring != null) { |
| fViewer.reveal(declaring); |
| fViewer.setSelection(new StructuredSelection(declaring)); |
| } |
| return; |
| } else if (obj instanceof ProblemNode) { |
| ProblemNode problemNode= (ProblemNode) obj; |
| EditorUtility.selectInEditor(fEditor, problemNode.getOffset(), problemNode.getLength()); |
| return; |
| } else if (obj instanceof JavaElement) { |
| IJavaElement javaElement= ((JavaElement) obj).getJavaElement(); |
| if (javaElement instanceof IPackageFragment) { |
| ShowInPackageViewAction showInPackageViewAction= new ShowInPackageViewAction(getViewSite()); |
| showInPackageViewAction.run(javaElement); |
| } else { |
| try { |
| IEditorPart editorPart= JavaUI.openInEditor(javaElement); |
| if (editorPart != null) |
| JavaUI.revealInEditor(editorPart, javaElement); |
| } catch (PartInitException e) { |
| showAndLogError("Could not open editor.", e); //$NON-NLS-1$ |
| } catch (JavaModelException e) { |
| showAndLogError("Could not open editor.", e); //$NON-NLS-1$ |
| } |
| } |
| return; |
| } |
| |
| if (node != null) { |
| int offset= isTrippleClick ? fRoot.getExtendedStartPosition(node) : node.getStartPosition(); |
| int length= isTrippleClick ? fRoot.getExtendedLength(node) : node.getLength(); |
| |
| EditorUtility.selectInEditor(fEditor, offset, length); |
| } |
| } |
| |
| protected void performAddToTray() { |
| IStructuredSelection selection= (IStructuredSelection) fViewer.getSelection(); |
| Object firstElement= selection.getFirstElement(); |
| if (! fTrayRoots.contains(firstElement)) { |
| fTrayRoots.add(firstElement); |
| fTray.setInput(fTrayRoots); |
| } |
| if (fSash.getMaximizedControl() != null) { |
| int trayHeight= fTray.getTree().getItemHeight() * (2 + TrayContentProvider.DEFAULT_CHILDREN_COUNT); |
| int sashHeight= fSash.getClientArea().height; |
| fSash.setWeights(new int[] { sashHeight - trayHeight, trayHeight }); |
| fSash.setMaximizedControl(null); |
| } |
| setTraySelection(selection); |
| } |
| |
| private void setTraySelection(IStructuredSelection selection) { |
| fTray.setSelection(selection, true); |
| TreeItem[] itemSelection= fTray.getTree().getSelection(); |
| if (itemSelection.length > 0) |
| fTray.getTree().setTopItem(itemSelection[0]); |
| } |
| |
| protected void performTrayDoubleClick() { |
| IStructuredSelection selection= (IStructuredSelection) fTray.getSelection(); |
| if (selection.size() != 1) |
| return; |
| Object obj = selection.getFirstElement(); |
| if (obj instanceof ExceptionAttribute) { |
| RuntimeException exception= ((ExceptionAttribute) obj).getException(); |
| if (exception != null) { |
| String label= ((ExceptionAttribute) obj).getLabel(); |
| showAndLogError("An error occurred while calculating an AST View Label:\n" + label, exception); //$NON-NLS-1$ |
| return; |
| } |
| } |
| if (obj instanceof Binding) { |
| Binding binding= (Binding) obj; |
| fViewer.setSelection(new StructuredSelection(binding), true); |
| } |
| } |
| |
| protected void performDelete() { |
| IStructuredSelection selection= (IStructuredSelection) fTray.getSelection(); |
| if (selection.size() != 1) |
| return; |
| Object obj = selection.getFirstElement(); |
| if (obj instanceof Binding) { |
| int index= fTrayRoots.indexOf(obj); |
| if (index != -1) { |
| fTrayRoots.remove(index); |
| fTray.setInput(fTrayRoots); |
| int newSize= fTrayRoots.size(); |
| if (newSize == 0) |
| return; |
| else if (index == newSize) |
| setTraySelection(new StructuredSelection(fTrayRoots.get(newSize - 1))); |
| else |
| setTraySelection(new StructuredSelection(fTrayRoots.get(index))); |
| } |
| } |
| } |
| |
| public void setFocus() { |
| fViewer.getControl().setFocus(); |
| } |
| |
| public ShowInContext getShowInContext() { |
| return new ShowInContext(null, getSite().getSelectionProvider().getSelection()); |
| } |
| } |
