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/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.ui.texteditor;
import java.util.ResourceBundle;
import org.eclipse.jface.text.IMarkRegionTarget;
/**
* An action to handle emacs-like marked regions.
*
* @since 2.0
*/
public class MarkAction extends TextEditorAction {
/** Sets the mark. */
public static final int SET_MARK= 0;
/** Clears the mark. */
public static final int CLEAR_MARK= 1;
/** Swaps the mark and the cursor position. */
public static final int SWAP_MARK= 2;
/** The mark action type. */
private final int fType;
/**
* Constructor for MarkAction.
*
* @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 type the mark action type, must be one of
* <code>SET_MARK</code>, <code>CLEAR_MARK</code> or <code>SWAP_MARK</code>.
*/
public MarkAction(ResourceBundle bundle, String prefix, ITextEditor editor, int type) {
super(bundle, prefix, editor);
fType= type;
}
@Override
public void run() {
ITextEditor editor= getTextEditor();
if (editor == null)
return;
IMarkRegionTarget target= editor.getAdapter(IMarkRegionTarget.class);
if (target == null)
return;
switch (fType) {
case SET_MARK:
target.setMarkAtCursor(true);
break;
case CLEAR_MARK:
target.setMarkAtCursor(false);
break;
case SWAP_MARK:
target.swapMarkAndCursor();
break;
}
}
}
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