| /******************************************************************************* |
| * Copyright (c) 2000, 2006 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 org.eclipse.jdt.ui.actions; |
| |
| import java.lang.reflect.InvocationTargetException; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.CoreException; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IField; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IMember; |
| import org.eclipse.jdt.core.IMethod; |
| import org.eclipse.jdt.core.IType; |
| |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.text.ITextSelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.IWorkbenchSite; |
| import org.eclipse.ui.PlatformUI; |
| |
| import org.eclipse.jdt.internal.corext.codemanipulation.AddJavaDocStubOperation; |
| import org.eclipse.jdt.internal.corext.util.JavaModelUtil; |
| |
| import org.eclipse.jdt.internal.ui.IJavaHelpContextIds; |
| import org.eclipse.jdt.internal.ui.actions.ActionMessages; |
| import org.eclipse.jdt.internal.ui.actions.ActionUtil; |
| import org.eclipse.jdt.internal.ui.actions.SelectionConverter; |
| import org.eclipse.jdt.internal.ui.actions.WorkbenchRunnableAdapter; |
| import org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor; |
| import org.eclipse.jdt.internal.ui.javaeditor.EditorUtility; |
| import org.eclipse.jdt.internal.ui.util.ElementValidator; |
| import org.eclipse.jdt.internal.ui.util.ExceptionHandler; |
| |
| /** |
| * Create Javadoc comment stubs for the selected members. |
| * <p> |
| * Will open the parent compilation unit in a Java editor. The result is |
| * unsaved, so the user can decide if the changes are acceptable. |
| * <p> |
| * The action is applicable to structured selections containing elements |
| * of type <code>IMember</code>. |
| * |
| * <p> |
| * This class may be instantiated; it is not intended to be subclassed. |
| * </p> |
| * |
| * @since 2.0 |
| */ |
| public class AddJavaDocStubAction extends SelectionDispatchAction { |
| |
| private CompilationUnitEditor fEditor; |
| |
| /** |
| * Creates a new <code>AddJavaDocStubAction</code>. The action requires |
| * that the selection provided by the site's selection provider is of type <code> |
| * org.eclipse.jface.viewers.IStructuredSelection</code>. |
| * |
| * @param site the site providing context information for this action |
| */ |
| public AddJavaDocStubAction(IWorkbenchSite site) { |
| super(site); |
| setText(ActionMessages.AddJavaDocStubAction_label); |
| setDescription(ActionMessages.AddJavaDocStubAction_description); |
| setToolTipText(ActionMessages.AddJavaDocStubAction_tooltip); |
| PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.ADD_JAVADOC_STUB_ACTION); |
| } |
| |
| /** |
| * Note: This constructor is for internal use only. Clients should not call this constructor. |
| * @param editor the compilation unit editor |
| */ |
| public AddJavaDocStubAction(CompilationUnitEditor editor) { |
| this(editor.getEditorSite()); |
| fEditor= editor; |
| setEnabled(checkEnabledEditor()); |
| } |
| |
| //---- Structured Viewer ----------------------------------------------------------- |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction |
| */ |
| public void selectionChanged(IStructuredSelection selection) { |
| IMember[] members= getSelectedMembers(selection); |
| setEnabled(members != null && members.length > 0); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction |
| */ |
| public void run(IStructuredSelection selection) { |
| IMember[] members= getSelectedMembers(selection); |
| if (members == null || members.length == 0) { |
| return; |
| } |
| |
| try { |
| ICompilationUnit cu= members[0].getCompilationUnit(); |
| if (!ActionUtil.isProcessable(getShell(), cu)) { |
| return; |
| } |
| |
| // open the editor, forces the creation of a working copy |
| IEditorPart editor= EditorUtility.openInEditor(cu); |
| |
| if (ElementValidator.check(members, getShell(), getDialogTitle(), false)) |
| run(cu, members); |
| JavaModelUtil.reconcile(cu); |
| EditorUtility.revealInEditor(editor, members[0]); |
| |
| } catch (CoreException e) { |
| ExceptionHandler.handle(e, getShell(), getDialogTitle(), ActionMessages.AddJavaDocStubsAction_error_actionFailed); |
| } |
| } |
| |
| //---- Java Editor -------------------------------------------------------------- |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction |
| */ |
| public void selectionChanged(ITextSelection selection) { |
| } |
| |
| private boolean checkEnabledEditor() { |
| return fEditor != null && SelectionConverter.canOperateOn(fEditor); |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction |
| */ |
| public void run(ITextSelection selection) { |
| try { |
| IJavaElement element= SelectionConverter.getElementAtOffset(fEditor); |
| if (!ActionUtil.isProcessable(getShell(), element)) |
| return; |
| int type= element != null ? element.getElementType() : -1; |
| if (type != IJavaElement.METHOD && type != IJavaElement.TYPE && type != IJavaElement.FIELD) { |
| element= SelectionConverter.getTypeAtOffset(fEditor); |
| if (element == null) { |
| MessageDialog.openInformation(getShell(), getDialogTitle(), |
| ActionMessages.AddJavaDocStubsAction_not_applicable); |
| return; |
| } |
| } |
| IMember[] members= new IMember[] { (IMember)element }; |
| if (ElementValidator.checkValidateEdit(members, getShell(), getDialogTitle())) |
| run(members[0].getCompilationUnit(), members); |
| } catch (CoreException e) { |
| ExceptionHandler.handle(e, getShell(), getDialogTitle(), ActionMessages.AddJavaDocStubsAction_error_actionFailed); |
| } |
| } |
| |
| //---- Helpers ------------------------------------------------------------------- |
| |
| /** |
| * Note this method is for internal use only. |
| * |
| * @param cu the compilation unit |
| * @param members an array of members |
| */ |
| public void run(ICompilationUnit cu, IMember[] members) { |
| try { |
| AddJavaDocStubOperation op= new AddJavaDocStubOperation(members); |
| PlatformUI.getWorkbench().getProgressService().runInUI( |
| PlatformUI.getWorkbench().getProgressService(), |
| new WorkbenchRunnableAdapter(op, op.getScheduleRule()), |
| op.getScheduleRule()); |
| } catch (InvocationTargetException e) { |
| ExceptionHandler.handle(e, getShell(), getDialogTitle(), ActionMessages.AddJavaDocStubsAction_error_actionFailed); |
| } catch (InterruptedException e) { |
| // operation canceled |
| } |
| } |
| |
| private IMember[] getSelectedMembers(IStructuredSelection selection) { |
| List elements= selection.toList(); |
| int nElements= elements.size(); |
| if (nElements > 0) { |
| IMember[] res= new IMember[nElements]; |
| ICompilationUnit cu= null; |
| for (int i= 0; i < nElements; i++) { |
| Object curr= elements.get(i); |
| if (curr instanceof IMethod || curr instanceof IType || curr instanceof IField) { |
| IMember member= (IMember)curr; // limit to methods, types & fields |
| if (! member.exists()) { |
| return null; |
| } |
| if (i == 0) { |
| cu= member.getCompilationUnit(); |
| if (cu == null) { |
| return null; |
| } |
| } else if (!cu.equals(member.getCompilationUnit())) { |
| return null; |
| } |
| if (member instanceof IType && member.getElementName().length() == 0) { |
| return null; // anonymous type |
| } |
| res[i]= member; |
| } else { |
| return null; |
| } |
| } |
| return res; |
| } |
| return null; |
| } |
| |
| private String getDialogTitle() { |
| return ActionMessages.AddJavaDocStubsAction_error_dialogTitle; |
| } |
| } |