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package org.eclipse.debug.internal.ui.actions;
/*
* (c) Copyright IBM Corp. 2000, 2001.
* All Rights Reserved.
*/
import org.eclipse.jface.action.Action;
import org.eclipse.jface.text.ITextOperationTarget;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.ui.texteditor.IUpdate;
public class TextViewerAction extends Action implements IUpdate {
private int fOperationCode= -1;
private ITextOperationTarget fOperationTarget;
public TextViewerAction(ITextViewer viewer, int operationCode) {
fOperationCode= operationCode;
fOperationTarget= viewer.getTextOperationTarget();
update();
}
/**
* Updates the enabled state of the action.
* Fires a property change if the enabled state changes.
*
* @see Action#firePropertyChange(String, Object, Object)
*/
public void update() {
boolean wasEnabled= isEnabled();
boolean isEnabled= (fOperationTarget != null && fOperationTarget.canDoOperation(fOperationCode));
setEnabled(isEnabled);
if (wasEnabled != isEnabled) {
firePropertyChange(ENABLED, wasEnabled ? Boolean.TRUE : Boolean.FALSE, isEnabled ? Boolean.TRUE : Boolean.FALSE);
}
}
/**
* @see Action#run()
*/
public void run() {
if (fOperationCode != -1 && fOperationTarget != null) {
fOperationTarget.doOperation(fOperationCode);
}
}
public void configureAction(String text, String toolTipText, String description) {
setText(text);
setToolTipText(toolTipText);
setDescription(description);
}
}
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