| /******************************************************************************* |
| * Copyright (c) 2007, 2011 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.internal.ui.actions; |
| |
| import org.eclipse.core.runtime.CoreException; |
| |
| import org.eclipse.jface.dialogs.MessageDialog; |
| 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.IMethod; |
| 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.corext.util.JavaModelUtil; |
| |
| import org.eclipse.jdt.ui.actions.SelectionDispatchAction; |
| |
| import org.eclipse.jdt.internal.ui.JavaPlugin; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor; |
| import org.eclipse.jdt.internal.ui.javaeditor.JavaTextSelection; |
| import org.eclipse.jdt.internal.ui.util.ExceptionHandler; |
| |
| public class IntroduceParameterObjectAction extends SelectionDispatchAction { |
| |
| private JavaEditor fEditor; |
| |
| /** |
| * Note: This constructor is for internal use only. Clients should not call this constructor. |
| * @param editor the compilation unit editor |
| */ |
| public IntroduceParameterObjectAction(JavaEditor editor) { |
| this(editor.getEditorSite()); |
| fEditor= editor; |
| setEnabled(true); |
| } |
| |
| /** |
| * Creates a new <code>IntroduceIndirectionAction</code>. |
| * |
| * @param site the site providing context information for this action |
| */ |
| public IntroduceParameterObjectAction(IWorkbenchSite site) { |
| super(site); |
| setText(ActionMessages.IntroduceParameterObjectAction_action_text); |
| setToolTipText(ActionMessages.IntroduceParameterObjectAction_action_tooltip); |
| setDescription(ActionMessages.IntroduceParameterObjectAction_action_description); |
| } |
| |
| //---- structured selection -------------------------------------------------- |
| |
| /* |
| * @see SelectionDispatchAction#selectionChanged(IStructuredSelection) |
| */ |
| @Override |
| public void selectionChanged(IStructuredSelection selection) { |
| try { |
| setEnabled(RefactoringAvailabilityTester.isIntroduceParameterObjectAvailable(selection)); |
| } catch (JavaModelException e) { |
| if (JavaModelUtil.isExceptionToBeLogged(e)) |
| JavaPlugin.log(e); |
| } |
| } |
| |
| /* |
| * @see SelectionDispatchAction#selectionChanged(ITextSelection) |
| */ |
| @Override |
| public void selectionChanged(ITextSelection selection) { |
| setEnabled(true); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jdt.ui.actions.SelectionDispatchAction#selectionChanged(org.eclipse.jdt.internal.ui.javaeditor.JavaTextSelection) |
| */ |
| @Override |
| public void selectionChanged(JavaTextSelection selection) { |
| try { |
| setEnabled(RefactoringAvailabilityTester.isIntroduceParameterObjectAvailable(selection)); |
| } catch (JavaModelException e) { |
| if (JavaModelUtil.isExceptionToBeLogged(e)) |
| JavaPlugin.log(e); |
| setEnabled(false); |
| } |
| } |
| |
| /* |
| * @see SelectionDispatchAction#run(IStructuredSelection) |
| */ |
| @Override |
| public void run(IStructuredSelection selection) { |
| try { |
| IMethod singleSelectedMethod= getSingleSelectedMethod(selection); |
| if (!ActionUtil.isEditable(getShell(), singleSelectedMethod)) |
| return; |
| run(singleSelectedMethod); |
| } catch (CoreException e) { |
| ExceptionHandler.handle(e, getShell(), ActionMessages.IntroduceParameterObjectAction_exceptiondialog_title, ActionMessages.IntroduceParameterObjectAction_unexpected_exception); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) Method declared on SelectionDispatchAction |
| */ |
| @Override |
| public void run(ITextSelection selection) { |
| try { |
| if (!ActionUtil.isEditable(fEditor)) |
| return; |
| run(getSingleSelectedMethod(selection)); |
| } catch (CoreException e) { |
| ExceptionHandler.handle(e, getShell(), ActionMessages.IntroduceParameterObjectAction_exceptiondialog_title, ActionMessages.IntroduceParameterObjectAction_unexpected_exception); |
| } |
| } |
| |
| @Override |
| public void run(JavaTextSelection selection) { |
| try { |
| IJavaElement[] elements= selection.resolveElementAtOffset(); |
| if (elements.length != 1) |
| return; |
| |
| if (!(elements[0] instanceof IMethod)) |
| return; |
| |
| run((IMethod) elements[0]); |
| } catch (CoreException e) { |
| ExceptionHandler.handle(e, getShell(), ActionMessages.IntroduceParameterObjectAction_exceptiondialog_title, ActionMessages.IntroduceParameterObjectAction_unexpected_exception); |
| } |
| } |
| |
| private void run(IMethod method) throws CoreException { |
| if (method == null) { |
| MessageDialog.openError(getShell(), ActionMessages.IntroduceParameterObjectAction_exceptiondialog_title, ActionMessages.IntroduceParameterObjectAction_can_not_run_refactoring_message); |
| } else if (fEditor == null || ActionUtil.isEditable(fEditor)) { |
| RefactoringExecutionStarter.startIntroduceParameterObject(method, getShell()); |
| } |
| } |
| |
| private static IMethod getSingleSelectedMethod(IStructuredSelection selection) { |
| if (selection.size() != 1) |
| return null; |
| |
| Object element= selection.getFirstElement(); |
| if (!(element instanceof IMethod)) |
| return null; |
| |
| return (IMethod)element; |
| } |
| |
| private IMethod getSingleSelectedMethod(ITextSelection selection) throws JavaModelException { |
| // - when caret/selection on method name (call or declaration) -> that method |
| // - otherwise: caret position's enclosing method declaration |
| // - when caret inside argument list of method declaration -> enclosing method declaration |
| // - when caret inside argument list of method call -> enclosing method declaration (and NOT method call) |
| IJavaElement[] elements= SelectionConverter.codeResolve(fEditor); |
| if (elements.length > 1) |
| return null; |
| |
| if (elements.length == 1 && elements[0] instanceof IMethod) { |
| return (IMethod) elements[0]; |
| } else { |
| IJavaElement elementAt= SelectionConverter.getInputAsCompilationUnit(fEditor).getElementAt(selection.getOffset()); |
| if (!(elementAt instanceof IMethod)) |
| return null; |
| |
| return (IMethod) elementAt; |
| } |
| } |
| } |