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1 | /******************************************************************************* |
2 | * Copyright (c) 2000, 2011 IBM Corporation and others. | |
3 | * All rights reserved. This program and the accompanying materials | |
4 | * are made available under the terms of the Eclipse Public License v1.0 | |
5 | * which accompanies this distribution, and is available at | |
6 | * http://www.eclipse.org/legal/epl-v10.html | |
7 | * | |
8 | * Contributors: | |
9 | * IBM Corporation - initial API and implementation | |
10 | *******************************************************************************/ | |
11 | package org.eclipse.jdt.ui.actions; | |
12 | ||
13 | ||
14 | import org.eclipse.jface.viewers.IStructuredSelection; | |
15 | ||
16 | import org.eclipse.jface.text.ITextSelection; | |
17 | ||
18 | import org.eclipse.ui.IWorkbenchSite; | |
19 | import org.eclipse.ui.PlatformUI; | |
20 | ||
21 | import org.eclipse.jdt.core.ICompilationUnit; | |
22 | import org.eclipse.jdt.core.ISourceRange; | |
23 | import org.eclipse.jdt.core.IType; | |
24 | import org.eclipse.jdt.core.JavaModelException; | |
25 | ||
26 | import org.eclipse.jdt.internal.corext.refactoring.RefactoringAvailabilityTester; | |
27 | import org.eclipse.jdt.internal.corext.refactoring.RefactoringExecutionStarter; | |
28 | import org.eclipse.jdt.internal.corext.util.JavaModelUtil; | |
29 | ||
30 | import org.eclipse.jdt.internal.ui.IJavaHelpContextIds; | |
31 | import org.eclipse.jdt.internal.ui.JavaPlugin; | |
32 | import org.eclipse.jdt.internal.ui.actions.ActionUtil; | |
33 | import org.eclipse.jdt.internal.ui.actions.SelectionConverter; | |
34 | import org.eclipse.jdt.internal.ui.javaeditor.JavaEditor; | |
35 | import org.eclipse.jdt.internal.ui.javaeditor.JavaTextSelection; | |
36 | import org.eclipse.jdt.internal.ui.refactoring.RefactoringMessages; | |
37 | import org.eclipse.jdt.internal.ui.util.ExceptionHandler; | |
38 | ||
39 | /** | |
40 | * Action to convert an anonymous inner class to a nested class. | |
41 | * | |
42 | * <p> | |
43 | * This class may be instantiated; it is not intended to be subclassed. | |
44 | * </p> | |
45 | * | |
46 | * @since 2.1 | |
47 | * | |
48 | * @noextend This class is not intended to be subclassed by clients. | |
49 | */ | |
50 | public class ConvertAnonymousToNestedAction extends SelectionDispatchAction { | |
51 | ||
52 | private final JavaEditor fEditor; | |
53 | ||
54 | /** | |
55 | * Note: This constructor is for internal use only. Clients should not call this constructor. | |
56 | * @param editor the java editor | |
57 | * | |
58 | * @noreference This constructor is not intended to be referenced by clients. | |
59 | */ | |
60 | public ConvertAnonymousToNestedAction(JavaEditor editor) { | |
61 | super(editor.getEditorSite()); | |
62 | setText(RefactoringMessages.ConvertAnonymousToNestedAction_Convert_Anonymous); | |
63 | fEditor= editor; | |
64 | setEnabled(SelectionConverter.getInputAsCompilationUnit(fEditor) != null); | |
65 | PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.CONVERT_ANONYMOUS_TO_NESTED_ACTION); | |
66 | } | |
67 | ||
68 | /** | |
69 | * Creates a new <code>ConvertAnonymousToNestedAction</code>. The action requires | |
70 | * that the selection provided by the site's selection provider is of type | |
71 | * <code>org.eclipse.jface.viewers.IStructuredSelection</code>. | |
72 | * | |
73 | * @param site the site providing context information for this action | |
74 | */ | |
75 | public ConvertAnonymousToNestedAction(IWorkbenchSite site) { | |
76 | super(site); | |
77 | fEditor= null; | |
78 | setText(RefactoringMessages.ConvertAnonymousToNestedAction_Convert_Anonymous); | |
79 | PlatformUI.getWorkbench().getHelpSystem().setHelp(this, IJavaHelpContextIds.CONVERT_ANONYMOUS_TO_NESTED_ACTION); | |
80 | } | |
81 | ||
82 | //---- Structured selection ----------------------------------------------------- | |
83 | ||
84 | /* (non-Javadoc) | |
85 | * Method declared on SelectionDispatchAction | |
86 | */ | |
87 | @Override | |
88 | public void selectionChanged(IStructuredSelection selection) { | |
89 | try { | |
90 | setEnabled(RefactoringAvailabilityTester.isConvertAnonymousAvailable(selection)); | |
91 | } catch (JavaModelException e) { | |
92 | if (JavaModelUtil.isExceptionToBeLogged(e)) | |
93 | JavaPlugin.log(e); | |
94 | setEnabled(false); | |
95 | } | |
96 | } | |
97 | ||
98 | /* (non-Javadoc) | |
99 | * Method declared on SelectionDispatchAction | |
100 | */ | |
101 | @Override | |
102 | public void run(IStructuredSelection selection) { | |
103 | IType type= getElement(selection); | |
104 | if (type == null) | |
105 | return; | |
106 | ISourceRange range; | |
107 | try { | |
108 | range= type.getNameRange(); | |
109 | run(type.getCompilationUnit(), range.getOffset(), range.getLength()); | |
110 | } catch (JavaModelException e) { | |
111 | ExceptionHandler.handle(e, RefactoringMessages.ConvertAnonymousToNestedAction_dialog_title, RefactoringMessages.NewTextRefactoringAction_exception); | |
112 | } | |
113 | } | |
114 | ||
115 | private IType getElement(IStructuredSelection selection) { | |
116 | if (selection.size() != 1) | |
117 | return null; | |
118 | Object element= selection.getFirstElement(); | |
119 | if (!(element instanceof IType)) | |
120 | return null; | |
121 | IType type= (IType)element; | |
122 | try { | |
123 | if (type.isAnonymous()) | |
124 | return type; | |
125 | } catch (JavaModelException e) { | |
126 | // fall through | |
127 | } | |
128 | return null; | |
129 | } | |
130 | ||
131 | //---- Text selection ----------------------------------------------------------- | |
132 | ||
133 | /* (non-Javadoc) | |
134 | * Method declared on SelectionDispatchAction | |
135 | */ | |
136 | @Override | |
137 | public void run(ITextSelection selection) { | |
138 | run(SelectionConverter.getInputAsCompilationUnit(fEditor), selection.getOffset(), selection.getLength()); | |
139 | } | |
140 | ||
141 | /* (non-Javadoc) | |
142 | * Method declared on SelectionDispatchAction | |
143 | */ | |
144 | @Override | |
145 | public void selectionChanged(ITextSelection selection) { | |
146 | setEnabled(fEditor != null && SelectionConverter.getInputAsCompilationUnit(fEditor) != null); | |
147 | } | |
148 | ||
149 | /** | |
150 | * Note: This method is for internal use only. Clients should not call this method. | |
151 | * @param selection the Java text selection (internal type) | |
152 | * | |
153 | * @noreference This method is not intended to be referenced by clients. | |
154 | */ | |
155 | @Override | |
156 | public void selectionChanged(JavaTextSelection selection) { | |
157 | try { | |
158 | setEnabled(RefactoringAvailabilityTester.isConvertAnonymousAvailable(selection)); | |
159 | } catch (JavaModelException e) { | |
160 | setEnabled(false); | |
161 | } | |
162 | } | |
163 | ||
164 | //---- helpers ------------------------------------------------------------------- | |
165 | ||
166 | private void run(ICompilationUnit unit, int offset, int length) { | |
167 | if (!ActionUtil.isEditable(fEditor, getShell(), unit)) | |
168 | return; | |
169 | RefactoringExecutionStarter.startConvertAnonymousRefactoring(unit, offset, length, getShell()); | |
170 | } | |
171 | } |