| /******************************************************************************* |
| * Copyright (c) 2007, 2010 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 org.eclipse.core.runtime.CoreException; |
| |
| import org.eclipse.jface.viewers.IStructuredSelection; |
| |
| import org.eclipse.jface.text.ITextSelection; |
| |
| import org.eclipse.ui.IWorkbenchSite; |
| |
| import org.eclipse.jdt.core.IJavaElement; |
| import org.eclipse.jdt.core.IType; |
| import org.eclipse.jdt.core.JavaModelException; |
| |
| import org.eclipse.jdt.internal.corext.refactoring.RefactoringAvailabilityTester; |
| import org.eclipse.jdt.internal.corext.refactoring.RefactoringExecutionStarter; |
| |
| import org.eclipse.jdt.internal.ui.actions.ActionUtil; |
| import org.eclipse.jdt.internal.ui.actions.SelectionConverter; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaTextSelection; |
| import org.eclipse.jdt.internal.ui.refactoring.RefactoringMessages; |
| import org.eclipse.jdt.internal.ui.refactoring.actions.RefactoringActions; |
| import org.eclipse.jdt.internal.ui.util.ExceptionHandler; |
| |
| /** |
| * Extracts selected fields into a new class and replaces the fields with a new field to the new class. |
| * * |
| * <p> |
| * This class may be instantiated; it is not intended to be subclassed. |
| * </p> |
| * |
| * @since 3.4 |
| * |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class ExtractClassAction extends SelectionDispatchAction { |
| private JavaEditor fEditor; |
| |
| /** |
| * Note: This constructor is for internal use only. Clients should not call this constructor. |
| * @param editor the java editor |
| * |
| * @noreference This constructor is not intended to be referenced by clients. |
| */ |
| public ExtractClassAction(JavaEditor editor) { |
| this(editor.getEditorSite()); |
| fEditor= editor; |
| setEnabled(SelectionConverter.canOperateOn(fEditor)); |
| } |
| |
| /** |
| * Creates a new <code>ExtractClassAction</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 ExtractClassAction(IWorkbenchSite site) { |
| super(site); |
| setText(RefactoringMessages.ExtractClassAction_action_text); |
| } |
| |
| //---- structured selection ------------------------------------------- |
| |
| /* |
| * @see SelectionDispatchAction#selectionChanged(IStructuredSelection) |
| */ |
| @Override |
| public void selectionChanged(IStructuredSelection selection) { |
| try { |
| IType singleSelectedType= RefactoringAvailabilityTester.getSingleSelectedType(selection); |
| setEnabled(RefactoringAvailabilityTester.isExtractClassAvailable(singleSelectedType)); |
| } catch (JavaModelException e) { |
| setEnabled(false); |
| } |
| } |
| |
| /* |
| * @see SelectionDispatchAction#run(IStructuredSelection) |
| */ |
| @Override |
| public void run(IStructuredSelection selection) { |
| try { |
| IType singleSelectedType= RefactoringAvailabilityTester.getSingleSelectedType(selection); |
| if (RefactoringAvailabilityTester.isExtractClassAvailable(singleSelectedType)) { |
| if (!ActionUtil.isEditable(getShell(), singleSelectedType)) |
| return; |
| RefactoringExecutionStarter.startExtractClassRefactoring(singleSelectedType, getShell()); |
| } |
| } catch (CoreException e) { |
| ExceptionHandler.handle(e, RefactoringMessages.OpenRefactoringWizardAction_refactoring, RefactoringMessages.OpenRefactoringWizardAction_exception); |
| } |
| } |
| |
| /* |
| * @see SelectionDispatchAction#selectionChanged(ITextSelection) |
| */ |
| @Override |
| public void selectionChanged(ITextSelection selection) { |
| setEnabled(true); |
| } |
| |
| /** |
| * Note: This method is for internal use only. Clients should not call this method. |
| * @param selection the changed selection |
| * |
| * @noreference This method is not intended to be referenced by clients. |
| */ |
| @Override |
| public void selectionChanged(JavaTextSelection selection) { |
| try { |
| IJavaElement element= selection.resolveEnclosingElement(); |
| if (element != null) { |
| IType type= (IType) element.getAncestor(IJavaElement.TYPE); |
| setEnabled(RefactoringAvailabilityTester.isExtractClassAvailable(type)); |
| } else { |
| setEnabled(false); |
| } |
| } catch (JavaModelException e) { |
| setEnabled(false); |
| } |
| } |
| |
| /* |
| * @see SelectionDispatchAction#run(ITextSelection) |
| */ |
| @Override |
| public void run(ITextSelection selection) { |
| try { |
| if (!ActionUtil.isEditable(fEditor)) |
| return; |
| IType type= RefactoringActions.getEnclosingOrPrimaryType(fEditor); |
| if (RefactoringAvailabilityTester.isExtractClassAvailable(type)) { |
| RefactoringExecutionStarter.startExtractClassRefactoring(type, getShell()); |
| } |
| } catch (CoreException e) { |
| ExceptionHandler.handle(e, RefactoringMessages.OpenRefactoringWizardAction_refactoring, RefactoringMessages.OpenRefactoringWizardAction_exception); |
| } |
| } |
| } |