| /******************************************************************************* |
| * 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.internal.debug.ui.actions; |
| |
| |
| |
| import java.text.MessageFormat; |
| import java.util.Iterator; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.debug.core.DebugEvent; |
| import org.eclipse.debug.core.DebugException; |
| import org.eclipse.debug.core.ILaunch; |
| import org.eclipse.debug.core.model.ISourceLocator; |
| import org.eclipse.debug.core.model.IStackFrame; |
| import org.eclipse.debug.core.model.IValue; |
| import org.eclipse.debug.ui.DebugUITools; |
| import org.eclipse.debug.ui.IDebugModelPresentation; |
| import org.eclipse.debug.ui.IDebugUIConstants; |
| import org.eclipse.debug.ui.IDebugView; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IJavaProject; |
| import org.eclipse.jdt.core.JavaCore; |
| import org.eclipse.jdt.debug.core.IJavaArray; |
| import org.eclipse.jdt.debug.core.IJavaDebugTarget; |
| import org.eclipse.jdt.debug.core.IJavaObject; |
| import org.eclipse.jdt.debug.core.IJavaStackFrame; |
| import org.eclipse.jdt.debug.core.IJavaThread; |
| import org.eclipse.jdt.debug.core.IJavaValue; |
| import org.eclipse.jdt.debug.core.IJavaVariable; |
| import org.eclipse.jdt.debug.core.JDIDebugModel; |
| import org.eclipse.jdt.debug.eval.IEvaluationEngine; |
| import org.eclipse.jdt.debug.eval.IEvaluationListener; |
| import org.eclipse.jdt.debug.eval.IEvaluationResult; |
| import org.eclipse.jdt.debug.ui.IJavaDebugUIConstants; |
| import org.eclipse.jdt.internal.debug.ui.EvaluationContextManager; |
| import org.eclipse.jdt.internal.debug.ui.JDIDebugUIPlugin; |
| import org.eclipse.jdt.internal.debug.ui.JavaWordFinder; |
| import org.eclipse.jdt.internal.debug.ui.display.IDataDisplay; |
| import org.eclipse.jdt.internal.debug.ui.display.JavaInspectExpression; |
| import org.eclipse.jdt.internal.debug.ui.snippeteditor.ISnippetStateChangedListener; |
| import org.eclipse.jdt.internal.debug.ui.snippeteditor.JavaSnippetEditor; |
| import org.eclipse.jface.action.IAction; |
| import org.eclipse.jface.dialogs.ErrorDialog; |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IRegion; |
| import org.eclipse.jface.text.ITextSelection; |
| import org.eclipse.jface.text.Region; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jface.viewers.ISelectionProvider; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.ui.IEditorActionDelegate; |
| import org.eclipse.ui.IEditorInput; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.IObjectActionDelegate; |
| import org.eclipse.ui.IPartListener; |
| import org.eclipse.ui.IViewActionDelegate; |
| import org.eclipse.ui.IViewPart; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchPart; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.IWorkbenchWindowActionDelegate; |
| import org.eclipse.ui.PartInitException; |
| import org.eclipse.ui.texteditor.ITextEditor; |
| import com.sun.jdi.InvocationException; |
| import com.sun.jdi.ObjectReference; |
| |
| |
| /** |
| * Action to do simple code evaluation. The evaluation |
| * is done in the UI thread and the expression and result are |
| * displayed using the IDataDisplay. |
| */ |
| public abstract class EvaluateAction implements IEvaluationListener, IWorkbenchWindowActionDelegate, IObjectActionDelegate, IEditorActionDelegate, IPartListener, IViewActionDelegate, ISnippetStateChangedListener { |
| |
| private IAction fAction; |
| private IWorkbenchPart fTargetPart; |
| private IWorkbenchWindow fWindow; |
| private Object fSelection; |
| private IRegion fRegion; |
| |
| /** |
| * Is the action waiting for an evaluation. |
| */ |
| private boolean fEvaluating; |
| |
| /** |
| * The new target part to use with the evaluation completes. |
| */ |
| private IWorkbenchPart fNewTargetPart= null; |
| |
| /** |
| * Used to resolve editor input for selected stack frame |
| */ |
| private IDebugModelPresentation fPresentation; |
| |
| public EvaluateAction() { |
| super(); |
| } |
| |
| /** |
| * Returns the 'object' context for this evaluation, |
| * or <code>null</code> if none. If the evaluation is being performed |
| * in the context of the variables view/inspector. Then |
| * perform the evaluation in the context of the |
| * selected value. |
| * |
| * @return Java object or <code>null</code> |
| */ |
| protected IJavaObject getObjectContext() { |
| IWorkbenchPage page= JDIDebugUIPlugin.getActivePage(); |
| if (page != null) { |
| IWorkbenchPart activePart= page.getActivePart(); |
| if (activePart != null) { |
| IDebugView a = (IDebugView)activePart.getAdapter(IDebugView.class); |
| if (a != null) { |
| if (a.getViewer() != null) { |
| ISelection s = a.getViewer().getSelection(); |
| if (s instanceof IStructuredSelection) { |
| IStructuredSelection structuredSelection = (IStructuredSelection)s; |
| if (structuredSelection.size() == 1) { |
| Object selection= structuredSelection.getFirstElement(); |
| if (selection instanceof IJavaVariable) { |
| IJavaVariable var = (IJavaVariable)selection; |
| // if 'this' is selected, use stack frame context |
| try { |
| if (!var.getName().equals("this")) { //$NON-NLS-1$ |
| IValue value= var.getValue(); |
| if (value instanceof IJavaObject && !(value instanceof IJavaArray)) { |
| return (IJavaObject)value; |
| } |
| } |
| } catch (DebugException e) { |
| JDIDebugUIPlugin.log(e); |
| } |
| } else if (selection instanceof JavaInspectExpression) { |
| IValue value= ((JavaInspectExpression)selection).getValue(); |
| if (value instanceof IJavaObject && !(value instanceof IJavaArray)) { |
| return (IJavaObject)value; |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Finds the currently selected stack frame in the UI. |
| * Stack frames from a scrapbook launch are ignored. |
| */ |
| protected IJavaStackFrame getStackFrameContext() { |
| IWorkbenchPart part = getTargetPart(); |
| IJavaStackFrame frame = null; |
| if (part == null) { |
| frame = EvaluationContextManager.getEvaluationContext(getWindow()); |
| } else { |
| frame = EvaluationContextManager.getEvaluationContext(part); |
| } |
| return frame; |
| } |
| |
| /** |
| * @see IEvaluationListener#evaluationComplete(IEvaluationResult) |
| */ |
| public void evaluationComplete(final IEvaluationResult result) { |
| // if plug-in has shutdown, ignore - see bug# 8693 |
| if (JDIDebugUIPlugin.getDefault() == null) { |
| return; |
| } |
| |
| final IJavaValue value= result.getValue(); |
| if (result.hasErrors() || value != null) { |
| final Display display= JDIDebugUIPlugin.getStandardDisplay(); |
| if (display.isDisposed()) { |
| return; |
| } |
| displayResult(result); |
| } |
| } |
| |
| protected void evaluationCleanup() { |
| setEvaluating(false); |
| setTargetPart(fNewTargetPart); |
| } |
| /** |
| * Display the given evaluation result. |
| */ |
| abstract protected void displayResult(IEvaluationResult result); |
| |
| protected void run() { |
| // eval in context of object or stack frame |
| IJavaObject object = getObjectContext(); |
| IJavaStackFrame stackFrame= getStackFrameContext(); |
| if (stackFrame == null) { |
| reportError(ActionMessages.getString("Evaluate.error.message.stack_frame_context")); //$NON-NLS-1$ |
| return; |
| } |
| |
| // check for nested evaluation |
| IJavaThread thread = (IJavaThread)stackFrame.getThread(); |
| if (thread.isPerformingEvaluation()) { |
| reportError(ActionMessages.getString("EvaluateAction.Cannot_perform_nested_evaluations._1")); //$NON-NLS-1$ |
| return; |
| } |
| |
| setNewTargetPart(getTargetPart()); |
| if (stackFrame.isSuspended()) { |
| IJavaElement javaElement= getJavaElement(stackFrame); |
| if (javaElement != null) { |
| IJavaProject project = javaElement.getJavaProject(); |
| IEvaluationEngine engine = null; |
| try { |
| Object selection= getSelectedObject(); |
| if (!(selection instanceof String)) { |
| return; |
| } |
| String expression= (String)selection; |
| |
| engine = JDIDebugUIPlugin.getDefault().getEvaluationEngine(project, (IJavaDebugTarget)stackFrame.getDebugTarget()); |
| setEvaluating(true); |
| boolean hitBreakpoints= JDIDebugModel.getPreferences().getBoolean(JDIDebugModel.PREF_SUSPEND_FOR_BREAKPOINTS_DURING_EVALUATION); |
| if (object == null) { |
| engine.evaluate(expression, stackFrame, this, DebugEvent.EVALUATION, hitBreakpoints); |
| } else { |
| engine.evaluate(expression, object, (IJavaThread)stackFrame.getThread(), this, DebugEvent.EVALUATION, hitBreakpoints); |
| } |
| return; |
| } catch (CoreException e) { |
| reportError(getExceptionMessage(e)); |
| } |
| } else { |
| reportError(ActionMessages.getString("Evaluate.error.message.src_context")); //$NON-NLS-1$ |
| } |
| } else { |
| // thread not suspended |
| reportError(ActionMessages.getString("EvaluateAction.Thread_not_suspended_-_unable_to_perform_evaluation._1")); //$NON-NLS-1$ |
| } |
| evaluationCleanup(); |
| } |
| |
| protected IJavaElement getJavaElement(IStackFrame stackFrame) { |
| |
| // Get the corresponding element. |
| ILaunch launch = stackFrame.getLaunch(); |
| if (launch == null) { |
| return null; |
| } |
| ISourceLocator locator= launch.getSourceLocator(); |
| if (locator == null) |
| return null; |
| |
| Object sourceElement = locator.getSourceElement(stackFrame); |
| if (sourceElement instanceof IJavaElement) { |
| return (IJavaElement) sourceElement; |
| } else if (sourceElement instanceof IResource) { |
| IJavaProject project = JavaCore.create(((IResource)sourceElement).getProject()); |
| if (project.exists()) { |
| return project; |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Updates the enabled state of the action that this is a |
| * delegate for. |
| */ |
| protected void update() { |
| IAction action= getAction(); |
| if (action != null) { |
| resolveSelectedObject(); |
| } |
| } |
| |
| /** |
| * Resolves the selected object in the target part, or <code>null</code> |
| * if there is no selection. |
| */ |
| protected void resolveSelectedObject() { |
| Object selectedObject= null; |
| fRegion = null; |
| ISelection selection= getTargetSelection(); |
| if (selection instanceof ITextSelection) { |
| ITextSelection ts = (ITextSelection)selection; |
| String text= ts.getText(); |
| if (textHasContent(text)) { |
| selectedObject= text; |
| fRegion = new Region(ts.getOffset(), ts.getLength()); |
| } else if (getTargetPart() instanceof IEditorPart) { |
| IEditorPart editor= (IEditorPart)getTargetPart(); |
| if (editor instanceof ITextEditor) { |
| selectedObject = resolveSelectedObjectUsingToken(selectedObject, ts, editor); |
| } |
| } |
| } else if (selection instanceof IStructuredSelection) { |
| if (!selection.isEmpty()) { |
| if (getTargetPart().getSite().getId().equals(IDebugUIConstants.ID_DEBUG_VIEW)) { |
| //work on the editor selection |
| IEditorPart editor= getTargetPart().getSite().getPage().getActiveEditor(); |
| setTargetPart(editor); |
| selection= getTargetSelection(); |
| if (selection instanceof ITextSelection) { |
| ITextSelection ts = (ITextSelection)selection; |
| String text= ts.getText(); |
| if (textHasContent(text)) { |
| selectedObject= text; |
| } else if (editor instanceof ITextEditor) { |
| selectedObject= resolveSelectedObjectUsingToken(selectedObject, ts, editor); |
| } |
| } |
| } else { |
| IStructuredSelection ss= (IStructuredSelection)selection; |
| Iterator elements = ss.iterator(); |
| while (elements.hasNext()) { |
| if (!(elements.next() instanceof IJavaVariable)) { |
| setSelectedObject(null); |
| return; |
| } |
| } |
| selectedObject= ss; |
| } |
| } |
| } |
| setSelectedObject(selectedObject); |
| } |
| |
| private Object resolveSelectedObjectUsingToken(Object selectedObject, ITextSelection ts, IEditorPart editor) { |
| ITextEditor textEditor= (ITextEditor) editor; |
| IDocument doc= textEditor.getDocumentProvider().getDocument(editor.getEditorInput()); |
| fRegion= JavaWordFinder.findWord(doc, ts.getOffset()); |
| if (fRegion != null) { |
| try { |
| selectedObject= doc.get(fRegion.getOffset(), fRegion.getLength()); |
| } catch (BadLocationException e) { |
| } |
| } |
| return selectedObject; |
| } |
| |
| protected ISelection getTargetSelection() { |
| IWorkbenchPart part = getTargetPart(); |
| if (part != null) { |
| ISelectionProvider provider = part.getSite().getSelectionProvider(); |
| if (provider != null) { |
| return provider.getSelection(); |
| } |
| } |
| return null; |
| } |
| |
| /** |
| * Resolve an editor input from the source element of the stack frame |
| * argument, and return whether it's equal to the editor input for the |
| * editor that owns this action. |
| */ |
| protected boolean compareToEditorInput(IStackFrame stackFrame) { |
| ILaunch launch = stackFrame.getLaunch(); |
| if (launch == null) { |
| return false; |
| } |
| ISourceLocator locator= launch.getSourceLocator(); |
| if (locator == null) { |
| return false; |
| } |
| Object sourceElement = locator.getSourceElement(stackFrame); |
| if (sourceElement == null) { |
| return false; |
| } |
| IEditorInput sfEditorInput= getDebugModelPresentation().getEditorInput(sourceElement); |
| if (getTargetPart() instanceof IEditorPart) { |
| return ((IEditorPart)getTargetPart()).getEditorInput().equals(sfEditorInput); |
| } |
| return false; |
| } |
| |
| protected Shell getShell() { |
| if (getTargetPart() != null) { |
| return getTargetPart().getSite().getShell(); |
| } |
| return JDIDebugUIPlugin.getActiveWorkbenchShell(); |
| } |
| |
| protected IDataDisplay getDataDisplay() { |
| IDataDisplay display= getDirectDataDisplay(); |
| if (display != null) { |
| return display; |
| } |
| IWorkbenchPage page= JDIDebugUIPlugin.getActivePage(); |
| if (page != null) { |
| IWorkbenchPart activePart= page.getActivePart(); |
| if (activePart != null) { |
| IViewPart view = page.findView(IJavaDebugUIConstants.ID_DISPLAY_VIEW); |
| if (view == null) { |
| try { |
| view= page.showView(IJavaDebugUIConstants.ID_DISPLAY_VIEW); |
| } catch (PartInitException e) { |
| JDIDebugUIPlugin.errorDialog(ActionMessages.getString("EvaluateAction.Cannot_open_Display_view"), e); //$NON-NLS-1$ |
| } finally { |
| page.activate(activePart); |
| } |
| } |
| if (view != null) { |
| page.bringToTop(view); |
| return (IDataDisplay)view.getAdapter(IDataDisplay.class); |
| } |
| } |
| } |
| |
| return null; |
| } |
| |
| protected IDataDisplay getDirectDataDisplay() { |
| IWorkbenchPart part= getTargetPart(); |
| if (part != null) { |
| IDataDisplay display= (IDataDisplay)part.getAdapter(IDataDisplay.class); |
| if (display != null) { |
| IWorkbenchPage page= JDIDebugUIPlugin.getActivePage(); |
| if (page != null) { |
| IWorkbenchPart activePart= page.getActivePart(); |
| if (activePart != null) { |
| if (activePart != part) { |
| page.activate(part); |
| } |
| } |
| } |
| return display; |
| } |
| } |
| IWorkbenchPage page= JDIDebugUIPlugin.getActivePage(); |
| if (page != null) { |
| IWorkbenchPart activePart= page.getActivePart(); |
| if (activePart != null) { |
| IDataDisplay display= (IDataDisplay)activePart.getAdapter(IDataDisplay.class); |
| if (display != null) { |
| return display; |
| } |
| } |
| } |
| return null; |
| } |
| |
| protected boolean textHasContent(String text) { |
| if (text != null) { |
| int length= text.length(); |
| if (length > 0) { |
| for (int i= 0; i < length; i++) { |
| if (Character.isLetterOrDigit(text.charAt(i))) { |
| return true; |
| } |
| } |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Displays a failed evaluation message in the data display. |
| */ |
| protected void reportErrors(IEvaluationResult result) { |
| String message= getErrorMessage(result); |
| reportError(message); |
| } |
| |
| protected void reportError(String message) { |
| IDataDisplay dataDisplay= getDirectDataDisplay(); |
| if (dataDisplay != null) { |
| if (message.length() != 0) { |
| dataDisplay.displayExpressionValue(MessageFormat.format(ActionMessages.getString("EvaluateAction.(evaluation_failed)_Reason"), new String[] {format(message)})); //$NON-NLS-1$ |
| } else { |
| dataDisplay.displayExpressionValue(ActionMessages.getString("EvaluateAction.(evaluation_failed)_1")); //$NON-NLS-1$ |
| } |
| } else { |
| Status status= new Status(IStatus.ERROR, JDIDebugUIPlugin.getUniqueIdentifier(), IStatus.ERROR, message, null); |
| ErrorDialog.openError(getShell(), ActionMessages.getString("Evaluate.error.title.eval_problems"), null, status); //$NON-NLS-1$ |
| } |
| } |
| |
| private String format(String message) { |
| StringBuffer result= new StringBuffer(); |
| int index= 0, pos; |
| while ((pos= message.indexOf('\n', index)) != -1) { |
| result.append("\t\t").append(message.substring(index, index= pos + 1)); //$NON-NLS-1$ |
| } |
| if (index < message.length()) { |
| result.append("\t\t").append(message.substring(index)); //$NON-NLS-1$ |
| } |
| return result.toString(); |
| } |
| |
| protected String getExceptionMessage(Throwable exception) { |
| if (exception instanceof CoreException) { |
| CoreException ce = (CoreException)exception; |
| Throwable throwable= ce.getStatus().getException(); |
| if (throwable instanceof com.sun.jdi.InvocationException) { |
| return getInvocationExceptionMessage((com.sun.jdi.InvocationException)throwable); |
| } else if (throwable instanceof CoreException) { |
| // Traverse nested CoreExceptions |
| return getExceptionMessage(throwable); |
| } |
| return ce.getStatus().getMessage(); |
| } |
| String message= MessageFormat.format(ActionMessages.getString("Evaluate.error.message.direct_exception"), new Object[] { exception.getClass() }); //$NON-NLS-1$ |
| if (exception.getMessage() != null) { |
| message= MessageFormat.format(ActionMessages.getString("Evaluate.error.message.exception.pattern"), new Object[] { message, exception.getMessage() }); //$NON-NLS-1$ |
| } |
| return message; |
| } |
| |
| /** |
| * Returns a message for the exception wrapped in an invocation exception |
| */ |
| protected String getInvocationExceptionMessage(com.sun.jdi.InvocationException exception) { |
| InvocationException ie= exception; |
| ObjectReference ref= ie.exception(); |
| return MessageFormat.format(ActionMessages.getString("Evaluate.error.message.wrapped_exception"), new Object[] { ref.referenceType().name() }); //$NON-NLS-1$ |
| } |
| |
| protected String getErrorMessage(IEvaluationResult result) { |
| String[] errors= result.getErrorMessages(); |
| if (errors.length == 0) { |
| return getExceptionMessage(result.getException()); |
| } |
| return getErrorMessage(errors); |
| } |
| |
| protected String getErrorMessage(String[] errors) { |
| String message= ""; //$NON-NLS-1$ |
| for (int i= 0; i < errors.length; i++) { |
| String msg= errors[i]; |
| if (i == 0) { |
| message= msg; |
| } else { |
| message= MessageFormat.format(ActionMessages.getString("Evaluate.error.problem_append_pattern"), new Object[] { message, msg }); //$NON-NLS-1$ |
| } |
| } |
| return message; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#run(IAction) |
| */ |
| public void run(IAction action) { |
| update(); |
| run(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.ui.IActionDelegate#selectionChanged(IAction, ISelection) |
| */ |
| public void selectionChanged(IAction action, ISelection selection) { |
| setAction(action); |
| } |
| |
| /** |
| * @see IWorkbenchWindowActionDelegate#dispose() |
| */ |
| public void dispose() { |
| disposeDebugModelPresentation(); |
| IWorkbenchWindow win = getWindow(); |
| if (win != null) { |
| win.getPartService().removePartListener(this); |
| } |
| } |
| |
| /** |
| * @see IWorkbenchWindowActionDelegate#init(IWorkbenchWindow) |
| */ |
| public void init(IWorkbenchWindow window) { |
| setWindow(window); |
| IWorkbenchPage page= window.getActivePage(); |
| if (page != null) { |
| setTargetPart(page.getActivePart()); |
| } |
| window.getPartService().addPartListener(this); |
| update(); |
| } |
| |
| protected IAction getAction() { |
| return fAction; |
| } |
| |
| protected void setAction(IAction action) { |
| fAction = action; |
| } |
| |
| /** |
| * Returns a debug model presentation (creating one |
| * if necessary). |
| * |
| * @return debug model presentation |
| */ |
| protected IDebugModelPresentation getDebugModelPresentation() { |
| if (fPresentation == null) { |
| fPresentation = DebugUITools.newDebugModelPresentation(JDIDebugModel.getPluginIdentifier()); |
| } |
| return fPresentation; |
| } |
| |
| /** |
| * Disposes this action's debug model presentation, if |
| * one was created. |
| */ |
| protected void disposeDebugModelPresentation() { |
| if (fPresentation != null) { |
| fPresentation.dispose(); |
| } |
| } |
| |
| /** |
| * @see IEditorActionDelegate#setActiveEditor(IAction, IEditorPart) |
| */ |
| public void setActiveEditor(IAction action, IEditorPart targetEditor) { |
| setAction(action); |
| setTargetPart(targetEditor); |
| } |
| |
| /** |
| * @see IPartListener#partActivated(IWorkbenchPart) |
| */ |
| public void partActivated(IWorkbenchPart part) { |
| setTargetPart(part); |
| } |
| |
| /** |
| * @see IPartListener#partBroughtToTop(IWorkbenchPart) |
| */ |
| public void partBroughtToTop(IWorkbenchPart part) { |
| } |
| |
| /** |
| * @see IPartListener#partClosed(IWorkbenchPart) |
| */ |
| public void partClosed(IWorkbenchPart part) { |
| if (part == getTargetPart()) { |
| setTargetPart(null); |
| } |
| if (part == getNewTargetPart()) { |
| setNewTargetPart(null); |
| } |
| } |
| |
| /** |
| * @see IPartListener#partDeactivated(IWorkbenchPart) |
| */ |
| public void partDeactivated(IWorkbenchPart part) { |
| } |
| |
| /** |
| * @see IPartListener#partOpened(IWorkbenchPart) |
| */ |
| public void partOpened(IWorkbenchPart part) { |
| } |
| |
| /** |
| * @see IViewActionDelegate#init(IViewPart) |
| */ |
| public void init(IViewPart view) { |
| setTargetPart(view); |
| } |
| |
| protected IWorkbenchPart getTargetPart() { |
| return fTargetPart; |
| } |
| |
| protected void setTargetPart(IWorkbenchPart part) { |
| if (isEvaluating()) { |
| //do not want to change the target part while evaluating |
| //see bug 8334 |
| setNewTargetPart(part); |
| } else { |
| if (getTargetPart() instanceof JavaSnippetEditor) { |
| ((JavaSnippetEditor)getTargetPart()).removeSnippetStateChangedListener(this); |
| } |
| fTargetPart= part; |
| if (part instanceof JavaSnippetEditor) { |
| ((JavaSnippetEditor)part).addSnippetStateChangedListener(this); |
| } |
| } |
| } |
| |
| protected IWorkbenchWindow getWindow() { |
| return fWindow; |
| } |
| |
| protected void setWindow(IWorkbenchWindow window) { |
| fWindow = window; |
| } |
| |
| /** |
| * @see IObjectActionDelegate#setActivePart(IAction, IWorkbenchPart) |
| */ |
| public void setActivePart(IAction action, IWorkbenchPart targetPart) { |
| setAction(action); |
| setTargetPart(targetPart); |
| update(); |
| } |
| |
| protected Object getSelectedObject() { |
| return fSelection; |
| } |
| |
| protected void setSelectedObject(Object selection) { |
| fSelection = selection; |
| } |
| |
| /** |
| * @see ISnippetStateChangedListener#snippetStateChanged(JavaSnippetEditor) |
| */ |
| public void snippetStateChanged(JavaSnippetEditor editor) { |
| if (editor != null && !editor.isEvaluating() && editor.getFile() != null) { |
| update(); |
| } else { |
| getAction().setEnabled(false); |
| } |
| } |
| |
| protected IWorkbenchPart getNewTargetPart() { |
| return fNewTargetPart; |
| } |
| |
| protected void setNewTargetPart(IWorkbenchPart newTargetPart) { |
| fNewTargetPart = newTargetPart; |
| } |
| |
| protected boolean isEvaluating() { |
| return fEvaluating; |
| } |
| |
| protected void setEvaluating(boolean evaluating) { |
| fEvaluating = evaluating; |
| } |
| |
| /** |
| * Returns the selected text region, or <code>null</code> if none. |
| * |
| * @return |
| */ |
| protected IRegion getRegion() { |
| return fRegion; |
| } |
| } |
