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/*******************************************************************************
* Copyright (c) 2005, 2008 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.debug.ui.actions;
import org.eclipse.swt.widgets.Event;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.text.source.IVerticalRulerInfo;
import org.eclipse.ui.IActionDelegate2;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.texteditor.AbstractRulerActionDelegate;
import org.eclipse.ui.texteditor.ITextEditor;
/**
* Toggles a breakpoint when ruler is double-clicked. This action delegate can be
* contributed to an editor with the <code>editorActions</code> extension point.
* This action is as a factory that creates another action that performs the
* actual breakpoint toggling. The created action acts on the editor's
* <code>IToggleBreakpointsTagret</code> to toggle breakpoints.
* <p>
* Following is example plug-in XML used to contribute this action to an editor.
* Note that the label attribute of this action is not displayed in the editor.
* Instead, the label of the created action is displayed.
* <pre>
* <extension point="org.eclipse.ui.editorActions">
* <editorContribution
* targetID="example.editor"
* id="example.rulerActions">
* <action
* label="Not Used"
* class="org.eclipse.debug.ui.actions.RulerToggleBreakpointActionDelegate"
* style="push"
* actionID="RulerDoubleClick"
* id="example.doubleClickBreakpointAction"/>
* </editorContribution>
* </extension>
* </pre>
* </p>
* <p>
* This action can also be contributed to a vertical ruler context menu via the
* <code>popupMenus</code> extension point, by referencing the ruler's context
* menu identifier in the <code>targetID</code> attribute.
* <pre>
* <extension point="org.eclipse.ui.popupMenus">
* <viewerContribution
* targetID="example.rulerContextMenuId"
* id="example.RulerPopupActions">
* <action
* label="Toggle Breakpoint"
* class="org.eclipse.debug.ui.actions.RulerToggleBreakpointActionDelegate"
* menubarPath="additions"
* id="example.rulerContextMenu.toggleBreakpointAction">
* </action>
* </viewerContribution>
* </pre>
* </p>
* <p>
* Clients may refer to this class as an action delegate in plug-in XML.
* </p>
* @since 3.1
* @noextend This class is not intended to be subclassed by clients.
* @noinstantiate This class is not intended to be instantiated by clients.
*/
public class RulerToggleBreakpointActionDelegate extends AbstractRulerActionDelegate implements IActionDelegate2 {
private IEditorPart fEditor = null;
private ToggleBreakpointAction fDelegate = null;
/* (non-Javadoc)
* @see org.eclipse.ui.texteditor.AbstractRulerActionDelegate#createAction(org.eclipse.ui.texteditor.ITextEditor, org.eclipse.jface.text.source.IVerticalRulerInfo)
*/
protected IAction createAction(ITextEditor editor, IVerticalRulerInfo rulerInfo) {
fDelegate = new ToggleBreakpointAction(editor, null, rulerInfo);
return fDelegate;
}
/* (non-Javadoc)
* @see org.eclipse.ui.IEditorActionDelegate#setActiveEditor(org.eclipse.jface.action.IAction, org.eclipse.ui.IEditorPart)
*/
public void setActiveEditor(IAction callerAction, IEditorPart targetEditor) {
if (fEditor != null) {
if (fDelegate != null) {
fDelegate.dispose();
fDelegate = null;
}
}
fEditor = targetEditor;
super.setActiveEditor(callerAction, targetEditor);
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#init(org.eclipse.jface.action.IAction)
*/
public void init(IAction action) {
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#dispose()
*/
public void dispose() {
if (fDelegate != null) {
fDelegate.dispose();
}
fDelegate = null;
fEditor = null;
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate2#runWithEvent(org.eclipse.jface.action.IAction, org.eclipse.swt.widgets.Event)
*/
public void runWithEvent(IAction action, Event event) {
run(action);
}
}
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