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.RenameIdentifierRefactoring;
  10 import net.sourceforge.phpdt.ltk.core.RenamePHPProcessor;
  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,
  62                         final IEditorPart targetEditor) {
  63                 this.targetEditor = targetEditor;
  64                 onPHPFile = false;
  65                 IFile file = getFile();
  66
  67                 if (file != null && PHPFileUtil.isPHPFile(file)) {
  68                         onPHPFile = true;
  69                 }
  70         }
  71
  72         public void run(final IAction action) {
  73                 if (!onPHPFile) {
  74                         refuse();
  75                 } else {
  76                         if (selection != null && selection instanceof ITextSelection) {
  77                                 String word = null;
  78                                 Point point = null;
  79                                 if (targetEditor != null && (targetEditor instanceof PHPEditor)) {
  80                                         PHPEditor editor = (PHPEditor) targetEditor;
  81                                         if (editor != null) {
  82                                                 ITextSelection textSelection = (ITextSelection) editor
  83                                                                 .getSelectionProvider().getSelection();
  84                                                 IDocument doc = editor.getDocumentProvider()
  85                                                                 .getDocument(editor.getEditorInput());
  86                                                 int pos = textSelection.getOffset();
  87                                                 point = PHPWordExtractor.findWord(doc, pos);
  88                                                 if (point != null) {
  89                                                         try {
  90                                                                 word = doc.get(point.x, point.y);
  91                                                         } catch (BadLocationException e) {
  92                                                         }
  93                                                 }
  94                                         }
  95                                 }
  96                                 applySelection((ITextSelection) selection, word, point);
  97                                 if (saveAll()) {
  98                                         openWizard();
  99                                 }
 100                         }
 101                 }
 102         }
 103
 104         public void selectionChanged(final IAction action,
 105                         final ISelection selection) {
 106                 this.selection = selection;
 107         }
 108
 109         // helping methods
 110         // ////////////////
 111
 112         private void applySelection(final ITextSelection textSelection,
 113                         String word, Point point) {
 114                 if (word != null) {
 115                         info.setOldName(word);
 116                         info.setNewName(word);
 117                         info.setOffset(point.x);
 118                 } else {
 119                         info.setOldName(textSelection.getText());
 120                         info.setNewName(textSelection.getText());
 121                         info.setOffset(textSelection.getOffset());
 122                 }
 123                 info.setSourceFile(getFile());
 124         }
 125
 126         private void refuse() {
 127                 String title = UITexts.renameProperty_refuseDlg_title;
 128                 String message = UITexts.renameProperty_refuseDlg_message;
 129                 MessageDialog.openInformation(getShell(), title, message);
 130         }
 131
 132         private static boolean saveAll() {
 133                 IWorkspaceRoot workspaceRoot = ResourcesPlugin.getWorkspace().getRoot();
 134                 return IDE.saveAllEditors(new IResource[] { workspaceRoot }, false);
 135         }
 136
 137         private void openWizard() {
 138                 RenameIdentifierDelegate delegate = new RenameIdentifierDelegate(info);
 139                 RefactoringProcessor processor = new RenamePHPProcessor(info, delegate);
 140                 RenameIdentifierRefactoring ref = new RenameIdentifierRefactoring(
 141                                 processor);
 142                 RenameIdentifierWizard wizard = new RenameIdentifierWizard(ref, info);
 143                 RefactoringWizardOpenOperation op = new RefactoringWizardOpenOperation(
 144                                 wizard);
 145                 try {
 146                         String titleForFailedChecks = ""; //$NON-NLS-1$
 147                         op.run(getShell(), titleForFailedChecks);
 148                 } catch (final InterruptedException irex) {
 149                         // operation was cancelled
 150                 }
 151         }
 152
 153         private Shell getShell() {
 154                 Shell result = null;
 155                 if (targetEditor != null) {
 156                         result = targetEditor.getSite().getShell();
 157                 } else {
 158                         result = PlatformUI.getWorkbench().getActiveWorkbenchWindow()
 159                                         .getShell();
 160                 }
 161                 return result;
 162         }
 163
 164         private final IFile getFile() {
 165                 IFile result = null;
 166                 if (targetEditor instanceof ITextEditor) {
 167                         ITextEditor editor = (ITextEditor) targetEditor;
 168                         IEditorInput input = editor.getEditorInput();
 169                         if (input instanceof IFileEditorInput) {
 170                                 result = ((IFileEditorInput) input).getFile();
 171                         }
 172                 }
 173                 return result;
 174         }
 175 }