code cleaning (no functional changes)
[phpeclipse.git] / net.sourceforge.phpeclipse / src / net / sourceforge / phpdt / ltk / ui / actions / RenamePHPIdentifier.java
1 // Copyright (c) 2005 by Leif Frenzel. All rights reserved.
2 // See http://leiffrenzel.de
3 // modified for phpeclipse.de project by axelcl
4 package net.sourceforge.phpdt.ltk.ui.actions;
5
6 import net.sourceforge.phpdt.internal.ui.util.PHPFileUtil;
7 import net.sourceforge.phpdt.ltk.core.RenameIdentifierDelegate;
8 import net.sourceforge.phpdt.ltk.core.RenameIdentifierInfo;
9 import net.sourceforge.phpdt.ltk.core.RenamePHPProcessor;
10 import net.sourceforge.phpdt.ltk.core.RenameIdentifierRefactoring;
11 import net.sourceforge.phpdt.ltk.ui.UITexts;
12 import net.sourceforge.phpdt.ltk.ui.wizards.RenameIdentifierWizard;
13 import net.sourceforge.phpeclipse.phpeditor.PHPEditor;
14 import net.sourceforge.phpeclipse.phpeditor.php.PHPWordExtractor;
15
16 import org.eclipse.core.resources.IFile;
17 import org.eclipse.core.resources.IResource;
18 import org.eclipse.core.resources.IWorkspaceRoot;
19 import org.eclipse.core.resources.ResourcesPlugin;
20 import org.eclipse.jface.action.IAction;
21 import org.eclipse.jface.dialogs.MessageDialog;
22 import org.eclipse.jface.text.BadLocationException;
23 import org.eclipse.jface.text.IDocument;
24 import org.eclipse.jface.text.ITextSelection;
25 import org.eclipse.jface.viewers.ISelection;
26 import org.eclipse.ltk.core.refactoring.participants.RefactoringProcessor;
27 import org.eclipse.ltk.ui.refactoring.RefactoringWizardOpenOperation;
28 import org.eclipse.swt.graphics.Point;
29 import org.eclipse.swt.widgets.Shell;
30 import org.eclipse.ui.IEditorActionDelegate;
31 import org.eclipse.ui.IEditorInput;
32 import org.eclipse.ui.IEditorPart;
33 import org.eclipse.ui.IFileEditorInput;
34 import org.eclipse.ui.PlatformUI;
35 import org.eclipse.ui.ide.IDE;
36 import org.eclipse.ui.texteditor.ITextEditor;
37
38 /**
39  * <p>
40  * action that is triggered from the editor context menu.
41  * </p>
42  *
43  * <p>
44  * This action is declared in the <code>plugin.xml</code>.
45  * </p>
46  *
47  */
48 public class RenamePHPIdentifier implements IEditorActionDelegate {
49
50         private ISelection selection;
51
52         private IEditorPart targetEditor;
53
54         private boolean onPHPFile;
55
56         private RenameIdentifierInfo info = new RenameIdentifierInfo();
57
58         // interface methods of IEditorActionDelegate
59         // ///////////////////////////////////////////
60
61         public void setActiveEditor(final IAction action, final IEditorPart targetEditor) {
62                 this.targetEditor = targetEditor;
63                 onPHPFile = false;
64                 IFile file = getFile();
65
66                 if (file != null && PHPFileUtil.isPHPFile(file)) {
67                         onPHPFile = true;
68                 }
69         }
70
71         public void run(final IAction action) {
72                 if (!onPHPFile) {
73                         refuse();
74                 } else {
75                         if (selection != null && selection instanceof ITextSelection) {
76                                 String word = null;
77                                 Point point = null;
78                                 if (targetEditor != null && (targetEditor instanceof PHPEditor)) {
79                                         PHPEditor editor = (PHPEditor) targetEditor;
80                                         if (editor != null) {
81                                                 ITextSelection textSelection = (ITextSelection) editor.getSelectionProvider().getSelection();
82                                                 IDocument doc = editor.getDocumentProvider().getDocument(editor.getEditorInput());
83                                                 int pos = textSelection.getOffset();
84                                                 point = PHPWordExtractor.findWord(doc, pos);
85                                                 if (point != null) {
86                                                         try {
87                                                                 word = doc.get(point.x, point.y);
88                                                         } catch (BadLocationException e) {
89                                                         }
90                                                 }
91                                         }
92                                 }
93                                 applySelection((ITextSelection) selection, word, point);
94                                 if (saveAll()) {
95                                         openWizard();
96                                 }
97                         }
98                 }
99         }
100
101         public void selectionChanged(final IAction action, final ISelection selection) {
102                 this.selection = selection;
103         }
104
105         // helping methods
106         // ////////////////
107
108         private void applySelection(final ITextSelection textSelection, String word, Point point) {
109                 if (word != null) {
110                         info.setOldName(word);
111                         info.setNewName(word);
112                         info.setOffset(point.x);
113                 } else {
114                         info.setOldName(textSelection.getText());
115                         info.setNewName(textSelection.getText());
116                         info.setOffset(textSelection.getOffset());
117                 }
118                 info.setSourceFile(getFile());
119         }
120
121         private void refuse() {
122                 String title = UITexts.renameProperty_refuseDlg_title;
123                 String message = UITexts.renameProperty_refuseDlg_message;
124                 MessageDialog.openInformation(getShell(), title, message);
125         }
126
127         private static boolean saveAll() {
128                 IWorkspaceRoot workspaceRoot = ResourcesPlugin.getWorkspace().getRoot();
129                 return IDE.saveAllEditors(new IResource[] { workspaceRoot }, false);
130         }
131
132         private void openWizard() {
133                 RenameIdentifierDelegate delegate = new RenameIdentifierDelegate( info );
134                 RefactoringProcessor processor = new RenamePHPProcessor(info, delegate);
135                 RenameIdentifierRefactoring ref = new RenameIdentifierRefactoring(processor);
136                 RenameIdentifierWizard wizard = new RenameIdentifierWizard(ref, info);
137                 RefactoringWizardOpenOperation op = new RefactoringWizardOpenOperation(wizard);
138                 try {
139                         String titleForFailedChecks = ""; //$NON-NLS-1$
140                         op.run(getShell(), titleForFailedChecks);
141                 } catch (final InterruptedException irex) {
142                         // operation was cancelled
143                 }
144         }
145
146         private Shell getShell() {
147                 Shell result = null;
148                 if (targetEditor != null) {
149                         result = targetEditor.getSite().getShell();
150                 } else {
151                         result = PlatformUI.getWorkbench().getActiveWorkbenchWindow().getShell();
152                 }
153                 return result;
154         }
155
156         private final IFile getFile() {
157                 IFile result = null;
158                 if (targetEditor instanceof ITextEditor) {
159                         ITextEditor editor = (ITextEditor) targetEditor;
160                         IEditorInput input = editor.getEditorInput();
161                         if (input instanceof IFileEditorInput) {
162                                 result = ((IFileEditorInput) input).getFile();
163                         }
164                 }
165                 return result;
166         }
167 }