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/*******************************************************************************
* Copyright (c) 2000, 2006 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.ui.texteditor;
import java.util.ResourceBundle;
import org.eclipse.jface.text.source.IAnnotationModel;
/**
* Action for jumping to a particular annotation in the editor's text viewer.
* <p>
* This action only runs if <code>getTextEditor()</code>
* implements {@link org.eclipse.ui.texteditor.ITextEditorExtension4}.</p>
* <p>
* This class may be instantiated; it is not intended to be subclassed.
* </p>
*
* @since 3.2
*/
public class GotoAnnotationAction extends TextEditorAction {
/**
* The navigation direction.
* <code>true</code> to go to next and <code>false</code> to go to previous annotation.
*/
private boolean fForward;
/**
* Creates a new 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
* @param forward <code>true</code> to go to next and <code>false</code> to go to previous annotation
* @see TextEditorAction#TextEditorAction(ResourceBundle, String, ITextEditor)
*/
public GotoAnnotationAction(ResourceBundle bundle, String prefix, ITextEditor editor, boolean forward) {
super(bundle, prefix, editor);
fForward= forward;
setHelpContextId(fForward ? IAbstractTextEditorHelpContextIds.GOTO_NEXT_ANNOTATION_ACTION : IAbstractTextEditorHelpContextIds.GOTO_PREVIOUS_ANNOTATION_ACTION);
}
/**
* Creates a new action for the given text editor. The action configures its
* visual representation from the given resource bundle.
*
* @param editor the text editor
* @param forward <code>true</code> to go to next and <code>false</code> to go to previous annotation
* @see TextEditorAction#TextEditorAction(ResourceBundle, String, ITextEditor)
*/
public GotoAnnotationAction(ITextEditor editor, boolean forward) {
this(EditorMessages.getBundleForConstructedKeys(), forward ? "Editor.GotoNextAnnotation." : "Editor.GotoPreviousAnnotation.", editor, forward); //$NON-NLS-1$ //$NON-NLS-2$
}
/*
* @see org.eclipse.jface.action.IAction#run()
* @since 3.2
*/
public void run() {
ITextEditor editor= getTextEditor();
if (editor instanceof ITextEditorExtension4)
((ITextEditorExtension4)editor).gotoAnnotation(fForward);
}
/*
* @see org.eclipse.ui.texteditor.TextEditorAction#setEditor(org.eclipse.ui.texteditor.ITextEditor)
* @since 3.2
*/
public void setEditor(ITextEditor editor) {
super.setEditor(editor);
update();
}
/*
* @see org.eclipse.ui.texteditor.IUpdate#update()
* @since 3.2
*/
public void update() {
ITextEditor editor= getTextEditor();
if (!(editor instanceof AbstractTextEditor)) {
setEnabled(false);
return;
}
IAnnotationModel model= editor.getDocumentProvider().getAnnotationModel(editor.getEditorInput());
setEnabled(model != null);
}
}
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