| /******************************************************************************* |
| * Copyright (c) 2000, 2003 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.ui.refactoring.actions; |
| |
| import org.eclipse.core.runtime.CoreException; |
| |
| import org.eclipse.jdt.core.ICompilationUnit; |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IMethod; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jface.dialogs.MessageDialog; |
| import org.eclipse.jface.text.ITextSelection; |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| |
| import org.eclipse.ui.IWorkbenchSite; |
| import org.eclipse.ui.help.WorkbenchHelp; |
| |
| import org.eclipse.jdt.internal.corext.Assert; |
| import org.eclipse.jdt.internal.corext.refactoring.structure.MoveInstanceMethodRefactoring; |
| import org.eclipse.jdt.internal.corext.util.JavaModelUtil; |
| |
| import org.eclipse.jdt.internal.ui.IJavaHelpContextIds; |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.actions.ActionUtil; |
| import org.eclipse.jdt.internal.ui.actions.SelectionConverter; |
| import org.eclipse.jdt.internal.ui.javaeditor.CompilationUnitEditor; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaTextSelection; |
| import org.eclipse.jdt.internal.ui.preferences.JavaPreferencesSettings; |
| import org.eclipse.jdt.internal.ui.refactoring.MoveInstanceMethodWizard; |
| import org.eclipse.jdt.internal.ui.refactoring.RefactoringMessages; |
| import org.eclipse.jdt.internal.ui.refactoring.RefactoringWizard; |
| import org.eclipse.jdt.internal.ui.util.ExceptionHandler; |
| |
| import org.eclipse.jdt.ui.actions.SelectionDispatchAction; |
| |
| /** |
| * <p> This class may be instantiated; it is not intended to be subclassed. |
| * </p> |
| * |
| */ |
| public class MoveInstanceMethodAction extends SelectionDispatchAction { |
| |
| private CompilationUnitEditor fEditor; |
| |
| private static final String DIALOG_TITLE= RefactoringMessages.getString("MoveInstanceMethodAction.dialog_title"); //$NON-NLS-1$ |
| |
| /** |
| * Note: This constructor is for internal use only. Clients should not call this constructor. |
| */ |
| public MoveInstanceMethodAction(CompilationUnitEditor editor) { |
| this(editor.getEditorSite()); |
| fEditor= editor; |
| setEnabled(SelectionConverter.canOperateOn(fEditor)); |
| } |
| |
| public MoveInstanceMethodAction(IWorkbenchSite site) { |
| super(site); |
| setText(RefactoringMessages.getString("MoveInstanceMethodAction.Move_Method")); //$NON-NLS-1$ |
| WorkbenchHelp.setHelp(this, IJavaHelpContextIds.MOVE_ACTION); |
| } |
| |
| /* |
| * @see SelectionDispatchAction#selectionChanged(IStructuredSelection) |
| */ |
| public void selectionChanged(IStructuredSelection selection) { |
| try { |
| setEnabled(canEnable(selection)); |
| } catch (JavaModelException e) { |
| // http://bugs.eclipse.org/bugs/show_bug.cgi?id=19253 |
| if (JavaModelUtil.filterNotPresentException(e)) |
| JavaPlugin.log(e); |
| setEnabled(false);//no ui |
| } |
| } |
| |
| public void selectionChanged(ITextSelection selection) { |
| setEnabled(true); |
| } |
| |
| /** |
| * Note: This method is for internal use only. Clients should not call this method. |
| */ |
| public void selectionChanged(JavaTextSelection selection) { |
| try { |
| setEnabled(canEnabled(selection)); |
| } catch (CoreException e) { |
| setEnabled(false); |
| } |
| } |
| |
| private static boolean canEnabled(JavaTextSelection selection) throws JavaModelException { |
| IJavaElement method= selection.resolveEnclosingElement(); |
| if (!(method instanceof IMethod)) |
| return false; |
| return MoveInstanceMethodRefactoring.isAvailable((IMethod)method); |
| } |
| |
| private static boolean canEnable(IStructuredSelection selection) throws JavaModelException{ |
| IMethod method= getSingleSelectedMethod(selection); |
| if (method == null) |
| return false; |
| return MoveInstanceMethodRefactoring.isAvailable(method); |
| } |
| |
| private static IMethod getSingleSelectedMethod(IStructuredSelection selection) { |
| if (selection.isEmpty() || selection.size() != 1) |
| return null; |
| |
| Object first= selection.getFirstElement(); |
| if (! (first instanceof IMethod)) |
| return null; |
| return (IMethod) first; |
| } |
| /* |
| * @see SelectionDispatchAction#run(IStructuredSelection) |
| */ |
| public void run(IStructuredSelection selection) { |
| try { |
| Assert.isTrue(canEnable(selection)); |
| |
| IMethod method= getSingleSelectedMethod(selection); |
| Assert.isNotNull(method); |
| run(method); |
| } catch (JavaModelException e) { |
| ExceptionHandler.handle(e, getShell(), DIALOG_TITLE, RefactoringMessages.getString("MoveInstanceMethodAction.unexpected_exception")); //$NON-NLS-1$ |
| } |
| } |
| |
| /* (non-Javadoc) |
| * Method declared on SelectionDispatchAction |
| */ |
| public void run(ITextSelection selection) { |
| try { |
| run(selection, getCompilationUnitForTextSelection()); |
| } catch (JavaModelException e) { |
| ExceptionHandler.handle(e, getShell(), DIALOG_TITLE, RefactoringMessages.getString("MoveInstanceMethodAction.unexpected_exception")); //$NON-NLS-1$ |
| } |
| } |
| |
| private void run(IMethod method) throws JavaModelException { |
| MoveInstanceMethodRefactoring refactoring= MoveInstanceMethodRefactoring.create(method, JavaPreferencesSettings.getCodeGenerationSettings()); |
| if (refactoring == null) { |
| MessageDialog.openInformation(getShell(), DIALOG_TITLE, RefactoringMessages.getString("MoveInstanceMethodAction.No_reference_or_declaration")); //$NON-NLS-1$ |
| return; |
| } |
| new RefactoringStarter().activate(refactoring, createWizard(refactoring), getShell(), DIALOG_TITLE, true); |
| } |
| |
| private void run(ITextSelection selection, ICompilationUnit cu) throws JavaModelException{ |
| Assert.isNotNull(cu); |
| Assert.isTrue(selection.getOffset() >= 0); |
| Assert.isTrue(selection.getLength() >= 0); |
| |
| if (!ActionUtil.isProcessable(getShell(), cu)) |
| return; |
| |
| IMethod method= getMethod(cu, selection); |
| |
| if (method != null) { |
| run(method); |
| } else { |
| MessageDialog.openInformation(getShell(), DIALOG_TITLE, RefactoringMessages.getString("MoveInstanceMethodAction.No_reference_or_declaration")); |
| } |
| } |
| |
| private static IMethod getMethod(ICompilationUnit cu, ITextSelection selection) throws JavaModelException { |
| IJavaElement element= SelectionConverter.getElementAtOffset(cu, selection); |
| if (element instanceof IMethod) |
| return (IMethod) element; |
| return null; |
| } |
| |
| private ICompilationUnit getCompilationUnitForTextSelection() { |
| Assert.isNotNull(fEditor); |
| return SelectionConverter.getInputAsCompilationUnit(fEditor); |
| } |
| |
| private static RefactoringWizard createWizard(MoveInstanceMethodRefactoring refactoring) { |
| return new MoveInstanceMethodWizard(refactoring); |
| } |
| } |