Java tutorial
/******************************************************************************* * Copyright (c) 2000, 2005 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 *******************************************************************************/ package coloredide.astview; import java.util.ArrayList; import java.util.Collection; import java.util.Iterator; import java.util.List; 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.core.runtime.CoreException; import org.eclipse.core.runtime.IPath; import org.eclipse.core.runtime.IStatus; import org.eclipse.core.runtime.ListenerList; import org.eclipse.core.runtime.Status; 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.JavaCore; import org.eclipse.jdt.core.JavaModelException; 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.jdt.ui.JavaUI; import org.eclipse.jdt.ui.actions.ShowInPackageViewAction; 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.dialogs.IDialogSettings; import org.eclipse.jface.dialogs.InputDialog; 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.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.jface.window.Window; import org.eclipse.swt.SWT; import org.eclipse.swt.custom.SashForm; import org.eclipse.swt.custom.ViewForm; import org.eclipse.swt.dnd.Clipboard; import org.eclipse.swt.dnd.TextTransfer; import org.eclipse.swt.dnd.Transfer; import org.eclipse.swt.events.FocusAdapter; import org.eclipse.swt.events.FocusEvent; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.Display; 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.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 coloredide.ColorChangedEvent; import coloredide.ColoredIDEImages; import coloredide.ColoredIDEPlugin; import coloredide.IColorChangeListener; import coloredide.astview.internal.ASTAttribute; import coloredide.astview.internal.Binding; import coloredide.astview.internal.DynamicAttributeProperty; import coloredide.astview.internal.Error; import coloredide.astview.internal.ExceptionAttribute; import coloredide.astview.internal.JavaElement; import coloredide.astview.internal.NodeProperty; import coloredide.astview.internal.NonRelevantFilter; import coloredide.astview.internal.ProblemNode; import coloredide.astview.internal.TrayContentProvider; import coloredide.astview.internal.TrayLabelProvider; import coloredide.astview.internal.TreeCopyAction; import coloredide.features.Feature; import coloredide.features.FeatureManager; import coloredide.features.source.ColoredJavaSourceFile; import coloredide.features.source.IColoredJavaSourceFile; import coloredide.tools.interactionanalyzer.TensorDerivative; import coloredide.utils.EditorUtility; import coloredide.utils.NodeFinder; @SuppressWarnings("unchecked") public class ASTView extends ViewPart implements IShowInSource { private class ASTViewSelectionProvider implements ISelectionProvider { ListenerList fListeners = new ListenerList(ListenerList.IDENTITY); 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()); } return new StructuredSelection(externalSelection); } public void removeSelectionChangedListener(ISelectionChangedListener listener) { fListeners.remove(listener); } public void setSelection(ISelection selection) { // not supported } } // private class ASTInputKindAction extends Action { // public static final int USE_PARSER = 1; // // public static final int USE_RECONCILE = 2; // // public static final int USE_CACHE = 3; // // public static final int USE_FOCAL = 4; // // private int fInputKind; // // public ASTInputKindAction(String label, int inputKind) { // super(label, AS_RADIO_BUTTON); // fInputKind = inputKind; // if (inputKind == getCurrentInputKind()) { // setChecked(true); // } // } // // public int getInputKind() { // return fInputKind; // } // // public void run() { // setASTInputType(fInputKind); // } // } private static class ListenerMix implements ISelectionListener, IFileBufferListener, IDocumentListener, ISelectionChangedListener, IDoubleClickListener, IPartListener2, IColorChangeListener { 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) { fView.notifyWorkbenchPartClosed(partRef); } /* * (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 } public void colorChanged(ColorChangedEvent event) { if (event.getColoredJavaSourceFile() == fView.fColoredJavaSourceFile) fView.colorUpdated(event.getAffectedNodes()); } } private final static String SETTINGS_LINK_WITH_EDITOR = "link_with_editor"; //$NON-NLS-1$ // private final static String SETTINGS_INPUT_KIND = "input_kind"; //$NON-NLS-1$ // // private final static String SETTINGS_NO_STATEMENTS_RECOVERY = "no_statements_recovery"; //$NON-NLS-1$ private final static String SETTINGS_SHOW_NON_RELEVANT = "show_non_relevant";//$NON-NLS-1$ // private final static String SETTINGS_JLS = "jls"; //$NON-NLS-1$ private SashForm fSash; private TreeViewer fViewer; private ASTViewLabelProvider fASTLabelProvider; private TreeViewer fTray; private DrillDownAdapter fDrillDownAdapter; private Action fFocusAction; private Action fRefreshAction; private TestPersistenceAction fTestPersistenceAction; // private Action fStatementsRecoveryAction; private Action fFilterNonRelevantAction; private Action fCollapseAction; private Action fExpandAction; private Action fClearAction; private TreeCopyAction fCopyAction; private Action fDoubleClickAction; private Action fLinkWithEditor; private Action fAddToTrayAction; private Action fDeleteAction; // private ASTInputKindAction[] fASTInputKindActions; private int fCurrentInputKind; private ITextEditor fEditor; private IColoredJavaSourceFile fColoredJavaSourceFile; private CompilationUnit fRoot; private IDocument fCurrentDocument; private ArrayList fTrayRoots; private boolean fDoLinkWithEditor; private NonRelevantFilter fNonRelevantFilter; // private boolean fStatementsRecovery; private Object fPreviousDouble; private ListenerMix fSuperListener; private ISelectionChangedListener fTrayUpdater; private IDialogSettings fDialogSettings; public ASTView() { fSuperListener = null; fDialogSettings = ColoredIDEPlugin.getDefault().getDialogSettings(); fDoLinkWithEditor = fDialogSettings.getBoolean(SETTINGS_LINK_WITH_EDITOR); // try { // fCurrentInputKind = fDialogSettings.getInt(SETTINGS_INPUT_KIND); // } catch (NumberFormatException e) { // fCurrentInputKind = ASTInputKindAction.USE_PARSER; // } // so // that // default // is // to // create // bindings // fStatementsRecovery = !fDialogSettings // .getBoolean(SETTINGS_NO_STATEMENTS_RECOVERY); // inverse so // that default // is use // recovery fNonRelevantFilter = new NonRelevantFilter(); fNonRelevantFilter.setShowNonRelevant(fDialogSettings.getBoolean(SETTINGS_SHOW_NON_RELEVANT)); } private void colorUpdated(Collection<ASTNode> affectedNodes) { for (ASTNode affectedNode : affectedNodes) fViewer.refresh(affectedNode); } final void notifyWorkbenchPartClosed(IWorkbenchPartReference partRef) { if (fEditor != null && fEditor.equals(partRef.getPart(false))) { try { setInput(null); } catch (CoreException e) { // ignore } } } /* * (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); ColoredIDEPlugin.getDefault().addColorChangeListener(fSuperListener); } } public int getCurrentInputKind() { return fCurrentInputKind; } 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 instanceof ICompilationUnit) { // TODO support only compilation units, not already compiled // files! if (openable == null) { throw new CoreException(getErrorStatus("Editor not showing a CU or class file", null)); //$NON-NLS-1$ } fColoredJavaSourceFile = ColoredJavaSourceFile .getColoredJavaSourceFile((ICompilationUnit) openable); ISelection selection = editor.getSelectionProvider().getSelection(); if (selection instanceof ITextSelection) { ITextSelection textSelection = (ITextSelection) selection; fRoot = internalSetInput(fColoredJavaSourceFile, textSelection.getOffset(), textSelection.getLength()); fEditor = editor; } installModificationListener(); } else performClear(); } } private CompilationUnit internalSetInput(IColoredJavaSourceFile input, int offset, int length) throws CoreException { // if (input.getBuffer() == null) { // throw new CoreException(getErrorStatus("Input has no buffer", null)); // //$NON-NLS-1$ // } try { CompilationUnit root = input.getAST(); resetView(root); if (root == null) { setContentDescription("AST could not be created."); //$NON-NLS-1$ return null; } ASTNode node = NodeFinder.perform(root, offset, length); if (node != null) { fViewer.getTree().setRedraw(false); fASTLabelProvider.setSelectedRange(node.getStartPosition(), node.getLength()); 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 clearView() { resetView(null); setContentDescription("Open a Java editor and press the 'Show AST of active editor' toolbar button"); //$NON-NLS-1$ } private void resetView(CompilationUnit root) { if (root != null) fViewer.setInput(new ASTViewContentProvider.RootCapsle(root)); else fViewer.setInput(null); fViewer.getTree().setEnabled(root != null); fViewer.expandToLevel(1); fSash.setMaximizedControl(fViewer.getTree()); fTrayRoots = new ArrayList(); if (fTray != null) fTray.setInput(fTrayRoots); setASTUptoDate(root != null); fClearAction.setEnabled(root != null); fPreviousDouble = null; // avoid leaking AST } // // private void updateContentDescription(IJavaElement element, // CompilationUnit root, long time) { // String version = "AST Level 3"; //$NON-NLS-1$//$NON-NLS-2$ // if (getCurrentInputKind() == ASTInputKindAction.USE_RECONCILE) { // version += ", from reconciler"; //$NON-NLS-1$ // } else if (getCurrentInputKind() == ASTInputKindAction.USE_CACHE) { // version += ", from ASTProvider"; //$NON-NLS-1$ // } else if (getCurrentInputKind() == ASTInputKindAction.USE_FOCAL) { // version += ", using focal position"; //$NON-NLS-1$ // } // 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() { 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, ColoredIDEPlugin.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()); fASTLabelProvider = new ASTViewLabelProvider(this); fViewer.setLabelProvider(fASTLabelProvider); fViewer.addSelectionChangedListener(fSuperListener); fViewer.addDoubleClickListener(fSuperListener); fViewer.addFilter(fNonRelevantFilter); 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) { if (DynamicAttributeProperty.unwrapAttribute(viewerSelection.getFirstElement()) != null) { trayLabelProvider.setViewerElement(viewerSelection.getFirstElement()); return; } } 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); } }); makeActions(); hookContextMenu(); hookTrayContextMenu(); contributeToActionBars(); getSite().setSelectionProvider(new ASTViewSelectionProvider()); try { IEditorPart part = EditorUtility.getActiveEditor(); if (part instanceof ITextEditor) { setInput((ITextEditor) part); } } catch (CoreException e) { // ignore } if (fColoredJavaSourceFile == null) { clearView(); } else { setASTUptoDate(fColoredJavaSourceFile != 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 hookTrayContextMenu() { MenuManager menuMgr = new MenuManager("#TrayPopupMenu"); //$NON-NLS-1$ menuMgr.setRemoveAllWhenShown(true); menuMgr.addMenuListener(new IMenuListener() { public void menuAboutToShow(IMenuManager manager) { manager.add(fCopyAction); manager.add(fDeleteAction); manager.add(new Separator()); manager.add(new Separator(IWorkbenchActionConstants.MB_ADDITIONS)); } }); Menu menu = menuMgr.createContextMenu(fTray.getControl()); fTray.getControl().setMenu(menu); getSite().registerContextMenu("#TrayPopupMenu", menuMgr, fTray); //$NON-NLS-1$ } 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) { manager.add(new Separator()); // manager.add(fStatementsRecoveryAction); manager.add(fFilterNonRelevantAction); manager.add(new Separator()); manager.add(new Separator()); manager.add(fLinkWithEditor); manager.add(new TestAction()); // MenuManager menu = new MenuManager("&Advanced Options"); // manager.add(menu); // for (int i = 0; i < fASTInputKindActions.length; i++) { // menu.add(fASTInputKindActions[i]); // } } private List<ASTNode> getSelection() { List<ASTNode> result = new ArrayList<ASTNode>(); IStructuredSelection selection = (IStructuredSelection) fViewer.getSelection(); for (Iterator iter = selection.iterator(); iter.hasNext();) { Object element = iter.next(); if (element instanceof ASTNode) { result.add((ASTNode) element); } } return result; } 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)); MenuManager idmenu = new MenuManager("ASTID"); idmenu.add(fTestPersistenceAction); manager.add(idmenu); fTestPersistenceAction.update(); List<ASTNode> nodes = getSelection(); if (nodes != null && !nodes.isEmpty()) { for (Feature feature : FeatureManager.getVisibleFeatures(fColoredJavaSourceFile.getProject())) { ToggleASTFeatureAction action = new ToggleASTFeatureAction(feature, nodes, fColoredJavaSourceFile); manager.add(action); } MenuManager allf = new MenuManager("All features"); for (Feature feature : FeatureManager.getFeatures()) { ToggleASTFeatureAction action = new ToggleASTFeatureAction(feature, nodes, fColoredJavaSourceFile); allf.add(action); } manager.add(allf); } manager.add(new CleanASTColorsAction(nodes, fColoredJavaSourceFile)); if (nodes != null && nodes.size() == 1) { MenuManager derivativesSubmenu = new MenuManager("Derivative"); derivativesSubmenu .add(new Action(new TensorDerivative(nodes.get(0), fColoredJavaSourceFile).getDerivativeStr()) { @Override public void run() { Clipboard cb = new Clipboard(Display.getDefault()); TextTransfer textTransfer = TextTransfer.getInstance(); cb.setContents(new Object[] { getText() }, new Transfer[] { textTransfer }); super.run(); cb.dispose(); } }); manager.add(derivativesSubmenu); } } 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 && fColoredJavaSourceFile != null); } private void makeActions() { fTestPersistenceAction = new TestPersistenceAction(fViewer); fRefreshAction = new Action() { public void run() { performRefresh(); } }; fRefreshAction.setText("&Refresh AST"); //$NON-NLS-1$ fRefreshAction.setToolTipText("Refresh AST"); //$NON-NLS-1$ fRefreshAction.setEnabled(false); ColoredIDEImages.setImageDescriptors(fRefreshAction, ColoredIDEImages.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); ColoredIDEImages.setImageDescriptors(fClearAction, ColoredIDEImages.CLEAR); // fASTInputKindActions = new ASTInputKindAction[] { // new ASTInputKindAction( // "Use ASTParser.&createAST", ASTInputKindAction.USE_PARSER), // //$NON-NLS-1$ // new ASTInputKindAction( // "Use ASTParser with &focal position", ASTInputKindAction.USE_FOCAL), // //$NON-NLS-1$ // new ASTInputKindAction( // "Use ICompilationUnit.&reconcile", ASTInputKindAction.USE_RECONCILE), // //$NON-NLS-1$ // new ASTInputKindAction( // "Use ASTProvider.&getAST", ASTInputKindAction.USE_CACHE) // //$NON-NLS-1$ // }; // fStatementsRecoveryAction = new Action( // "&Statements Recovery", IAction.AS_CHECK_BOX) { //$NON-NLS-1$ // public void run() { // performStatementsRecovery(); // } // }; // fStatementsRecoveryAction.setChecked(fStatementsRecovery); // fStatementsRecoveryAction.setEnabled(true); fFilterNonRelevantAction = new Action("&Hide Non-Relevant Attributes", IAction.AS_CHECK_BOX) { //$NON-NLS-1$ public void run() { performFilterNonRelevant(); } }; fFilterNonRelevantAction.setChecked(!fNonRelevantFilter.isShowNonRelevant()); fFilterNonRelevantAction.setToolTipText("Hide non-relevant binding attributes"); //$NON-NLS-1$ fFilterNonRelevantAction.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"); //$NON-NLS-1$ ColoredIDEImages.setImageDescriptors(fFocusAction, ColoredIDEImages.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); ColoredIDEImages.setImageDescriptors(fCollapseAction, ColoredIDEImages.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); ColoredIDEImages.setImageDescriptors(fExpandAction, ColoredIDEImages.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"); //$NON-NLS-1$ ColoredIDEImages.setImageDescriptors(fLinkWithEditor, ColoredIDEImages.LINK_WITH_EDITOR); 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); ColoredIDEImages.setImageDescriptors(fAddToTrayAction, ColoredIDEImages.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(ColoredIDEPlugin.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(); } fColoredJavaSourceFile.refreshAST(); internalSetInput(fColoredJavaSourceFile, offset, length); } // protected void setASTInputType(int inputKind) { // if (inputKind != fCurrentInputKind) { // fCurrentInputKind = inputKind; // fDialogSettings.put(SETTINGS_INPUT_KIND, inputKind); // for (int i = 0; i < fASTInputKindActions.length; i++) { // ASTInputKindAction curr = fASTInputKindActions[i]; // curr.setChecked(curr.getInputKind() == inputKind); // } // performRefresh(); // } // } 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 && fViewer.getTree().isFocusControl()) { Object first = structuredSelection.getFirstElement(); Object unwrapped = DynamicAttributeProperty.unwrapAttribute(first); addEnabled = unwrapped != null; } fAddToTrayAction.setEnabled(addEnabled); } protected void handleEditorPostSelectionChanged(IWorkbenchPart part, ISelection selection) { if (!(selection instanceof ITextSelection)) { return; } ITextSelection textSelection = (ITextSelection) selection; fASTLabelProvider.setSelectedRange(textSelection.getOffset(), textSelection.getLength()); if (!fDoLinkWithEditor) { 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(); fDialogSettings.put(SETTINGS_LINK_WITH_EDITOR, fDoLinkWithEditor); if (fDoLinkWithEditor && fEditor != null) { ISelectionProvider selectionProvider = fEditor.getSelectionProvider(); if (selectionProvider != null) { // can be null when editor is // closed doLinkWithEditor(selectionProvider.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 (fColoredJavaSourceFile != null) { try { refreshAST(); } catch (CoreException e) { showAndLogError("Could not set AST view input ", e); //$NON-NLS-1$ } } } protected void performClear() { fColoredJavaSourceFile = null; try { setInput(null); } catch (CoreException e) { showAndLogError("Could not reset AST view ", e); //$NON-NLS-1$ } clearView(); } private void showAndLogError(String message, CoreException e) { e.printStackTrace(); ColoredIDEPlugin.log(message, e); ErrorDialog.openError(getSite().getShell(), "AST View", message, e.getStatus()); //$NON-NLS-1$ } private void showAndLogError(String message, Exception e) { e.printStackTrace(); IStatus status = new Status(IStatus.ERROR, ColoredIDEPlugin.getPluginId(), 0, message, e); ColoredIDEPlugin.log(status); ErrorDialog.openError(getSite().getShell(), "AST View", null, status); //$NON-NLS-1$ } // protected void performStatementsRecovery() { // fStatementsRecovery = fStatementsRecoveryAction.isChecked(); // fDialogSettings.put(SETTINGS_NO_STATEMENTS_RECOVERY, // !fStatementsRecovery); // performRefresh(); // } protected void performFilterNonRelevant() { boolean showNonRelevant = !fFilterNonRelevantAction.isChecked(); fNonRelevantFilter.setShowNonRelevant(showNonRelevant); fDialogSettings.put(SETTINGS_SHOW_NON_RELEVANT, showNonRelevant); fViewer.refresh(); } // protected void performResolveBindingKey() { // InputDialog dialog = new InputDialog(getSite().getShell(), // "Resolve Binding Key", // "Key: (optionally surrounded by <KEY: '> and <'>)", "", null); // if (dialog.open() != Window.OK) // return; // // String key = dialog.getValue(); // if (key.startsWith("KEY: '") && key.endsWith("'")) // key = key.substring(6, key.length() - 1); // ASTParser parser = ASTParser.newParser(ASTViewPlugin.AST_VERSION); // parser.setResolveBindings(true); // if (fOpenable instanceof IJavaElement) { // parser.setProject(((IJavaElement) fOpenable).getJavaProject()); // class MyASTRequestor extends ASTRequestor { // String fBindingKey; // // IBinding fBinding; // // public void acceptBinding(String bindingKey, IBinding binding) { // fBindingKey = bindingKey; // fBinding = binding; // } // } // MyASTRequestor requestor = new MyASTRequestor(); // ASTAttribute item; // Object viewerInput = fViewer.getInput(); // try { // parser.createASTs(new ICompilationUnit[0], // new String[] { key }, requestor, null); // if (requestor.fBindingKey != null) { // item = new Binding(viewerInput, requestor.fBindingKey, // requestor.fBinding, true); // } else { // item = new Error(viewerInput, "Key not resolved: " + key, // null); // } // } catch (RuntimeException e) { // item = new Error(viewerInput, "Error resolving key: " + key, e); // } // fViewer.add(viewerInput, item); // fViewer.setSelection(new StructuredSelection(item), true); // } // } protected void performCreateBindingFromElement() { InputDialog dialog = new InputDialog(getSite().getShell(), "Create Binding from Java Element", "IJavaElement#getHandleIdentifier():", "", null); if (dialog.open() != Window.OK) return; String handleIdentifier = dialog.getValue(); IJavaElement handle = JavaCore.create(handleIdentifier); Object viewerInput = fViewer.getInput(); ASTAttribute item; if (handle == null) { item = new Error(viewerInput, "handleIdentifier not resolved: " + handleIdentifier, null); } else if (!handle.exists()) { item = new Error(viewerInput, "element does not exist: " + handleIdentifier, null); } else if (handle.getJavaProject() == null) { item = new Error(viewerInput, "getJavaProject() is null: " + handleIdentifier, null); } else { IJavaProject project = handle.getJavaProject(); ASTParser parser = ASTParser.newParser(ColoredIDEPlugin.AST_VERSION); parser.setProject(project); IBinding[] bindings = parser.createBindings(new IJavaElement[] { handle }, null); item = new Binding(viewerInput, handleIdentifier, bindings[0], true); } fViewer.add(viewerInput, item); fViewer.setSelection(new StructuredSelection(item), true); } protected void performDoubleClick() { if (fEditor == null) { return; } ISelection selection = fViewer.getSelection(); Object obj = ((IStructuredSelection) selection).getFirstElement(); boolean isTripleClick = (obj == fPreviousDouble); fPreviousDouble = isTripleClick ? 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)); } else { fViewer.getTree().getDisplay().beep(); } 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 = isTripleClick ? fRoot.getExtendedStartPosition(node) : node.getStartPosition(); int length = isTripleClick ? 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()); } IColoredJavaSourceFile getColoredJavaSourceFile() { return fColoredJavaSourceFile; } }