+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2004 IBM Corporation and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v1.0
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- *
- * Contributors:
- * IBM Corporation - initial API and implementation
- *******************************************************************************/
-
-package net.sourceforge.phpeclipse.phpeditor;
-
-import java.util.ResourceBundle;
-
-import net.sourceforge.phpeclipse.PHPeclipsePlugin;
-
-import org.eclipse.jface.dialogs.MessageDialog;
-import org.eclipse.jface.text.BadLocationException;
-import org.eclipse.jface.text.IDocument;
-import org.eclipse.jface.text.ITextOperationTarget;
-import org.eclipse.jface.text.ITextSelection;
-import org.eclipse.jface.viewers.ISelection;
-import org.eclipse.swt.custom.BusyIndicator;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.swt.widgets.Shell;
-import org.eclipse.ui.texteditor.ITextEditor;
-import org.eclipse.ui.texteditor.ResourceAction;
-import org.eclipse.ui.texteditor.TextEditorAction;
-
-
-
-/**
- * An action which toggles the single line comment prefixes on the selected lines.
- *
- * @since 3.0
- */
-public final class ToggleCommentAction extends TextEditorAction {
-
- /** The text operation target */
- private ITextOperationTarget fOperationTarget;
- /** The comment prefixes */
- private String[] fCommentPrefixes;
-
- /**
- * Creates and initializes the action for the given text editor. The action
- * configures its visual representation from the given resource bundle.
- *
- * @param bundle the resource bundle
- * @param prefix a prefix to be prepended to the various resource keys
- * (described in <code>ResourceAction</code> constructor), or
- * <code>null</code> if none
- * @param editor the text editor
- * @see ResourceAction#ResourceAction
- */
- public ToggleCommentAction(ResourceBundle bundle, String prefix, ITextEditor editor, String[] commentPrefixes) {
- super(bundle, prefix, editor);
- fCommentPrefixes= commentPrefixes;
- }
-
- /**
- * Implementation of the <code>IAction</code> prototype. Checks if the selected
- * lines are all commented or not and uncomment/comments them respectively.
- */
- public void run() {
- if (fOperationTarget == null)
- return;
-
- ITextEditor editor= getTextEditor();
- if (!(editor instanceof PHPEditor))
- return;
-
- if (!validateEditorInputState())
- return;
-
- final int operationCode;
- if (isSelectionCommented(editor.getSelectionProvider().getSelection()))
- operationCode= ITextOperationTarget.STRIP_PREFIX;
- else
- operationCode= ITextOperationTarget.PREFIX;
-
- Shell shell= editor.getSite().getShell();
- if (!fOperationTarget.canDoOperation(operationCode)) {
- if (shell != null)
- MessageDialog.openError(shell, PHPEditorMessages.getString("ToggleComment.error.title"), PHPEditorMessages.getString("ToggleComment.error.message")); //$NON-NLS-1$ //$NON-NLS-2$
- return;
- }
-
- Display display= null;
- if (shell != null && !shell.isDisposed())
- display= shell.getDisplay();
-
- BusyIndicator.showWhile(display, new Runnable() {
- public void run() {
- fOperationTarget.doOperation(operationCode);
- }
- });
- }
-
- /**
- * Is the given selection single-line commented?
- *
- * @param selection Selection to check
- * @return <code>true</code> iff all selected lines are single-line commented
- */
- private boolean isSelectionCommented(ISelection selection) {
- if (!(selection instanceof ITextSelection))
- return false;
-
- ITextSelection ts= (ITextSelection) selection;
- if (ts.getStartLine() < 0 || ts.getEndLine() < 0)
- return false;
-
- IDocument document= getTextEditor().getDocumentProvider().getDocument(getTextEditor().getEditorInput());
- OUTER: for (int i= ts.getStartLine(); i <= ts.getEndLine(); i++) {
- for (int j= 0; j < fCommentPrefixes.length; j++) {
- try {
- if (fCommentPrefixes[j].length() == 0)
- continue;
- String s= document.get(document.getLineOffset(i), document.getLineLength(i));
- int index= s.indexOf(fCommentPrefixes[j]);
- if (index >= 0 && s.substring(0, index).trim().length() == 0)
- continue OUTER;
- } catch (BadLocationException e) {
- // should not happen
- PHPeclipsePlugin.log(e);
- }
- }
- return false;
- }
- return true;
- }
-
- /**
- * Implementation of the <code>IUpdate</code> prototype method discovers
- * the operation through the current editor's
- * <code>ITextOperationTarget</code> adapter, and sets the enabled state
- * accordingly.
- */
- public void update() {
- super.update();
-
- if (!canModifyEditor()) {
- setEnabled(false);
- return;
- }
-
- ITextEditor editor= getTextEditor();
- if (fOperationTarget == null && editor != null)
- fOperationTarget= (ITextOperationTarget) editor.getAdapter(ITextOperationTarget.class);
-
- boolean isEnabled= (fOperationTarget != null && fOperationTarget.canDoOperation(ITextOperationTarget.PREFIX) && fOperationTarget.canDoOperation(ITextOperationTarget.STRIP_PREFIX));
- setEnabled(isEnabled);
- }
-
- /*
- * @see TextEditorAction#setEditor(ITextEditor)
- */
- public void setEditor(ITextEditor editor) {
- super.setEditor(editor);
- fOperationTarget= null;
- }
-}
git://secure.phpeclipse.com / phpeclipse.git / blobdiff