/*******************************************************************************
* Copyright (c) 2000, 2015 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
* Anton Leherbauer (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.internal.ui.editor;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.text.link.ILinkedModeListener;
import org.eclipse.jface.text.link.LinkedModeModel;
/**
* Turns off occurrences highlighting on a C editor until linked mode is left.
*
* @since 5.0
*/
public class EditorHighlightingSynchronizer implements ILinkedModeListener {
private final CEditor fEditor;
private final boolean fWasOccurrencesOn;
/**
* Creates a new synchronizer.
*
* @param editor the editor the occurrences markers of which will be
* synchronized with the linked mode
*/
public EditorHighlightingSynchronizer(CEditor editor) {
Assert.isLegal(editor != null);
fEditor= editor;
fWasOccurrencesOn= fEditor.isMarkingOccurrences();
if (fWasOccurrencesOn && !isEditorDisposed())
fEditor.uninstallOccurrencesFinder();
}
@Override
public void left(LinkedModeModel environment, int flags) {
if (fWasOccurrencesOn && !isEditorDisposed())
fEditor.installOccurrencesFinder(true);
}
private boolean isEditorDisposed() {
return fEditor == null || fEditor.getSelectionProvider() == null;
}
@Override
public void suspend(LinkedModeModel environment) {
}
@Override
public void resume(LinkedModeModel environment, int flags) {
}
}