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/*
*(c) Copyright QNX Software Systems Ltd. 2002.
* All Rights Reserved.
*
*/
package org.eclipse.cdt.debug.internal.ui.views.memory;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.text.ITextOperationTarget;
import org.eclipse.ui.texteditor.IUpdate;
/**
* Enter type comment.
*
* @since Jun 12, 2003
*/
public class MemoryViewAction extends Action implements IUpdate
{
/** The text operation code */
private int fOperationCode = -1;
/** The text operation target */
private ITextOperationTarget fOperationTarget;
/** The text operation target provider */
private IAdaptable fTargetProvider;
public MemoryViewAction( ITextOperationTarget target, int operationCode )
{
super();
fOperationCode = operationCode;
fOperationTarget = target;
update();
}
public MemoryViewAction( IAdaptable targetProvider, int operationCode )
{
super();
fTargetProvider = targetProvider;
fOperationCode = operationCode;
update();
}
/**
* The <code>TextOperationAction</code> implementation of this
* <code>IUpdate</code> method discovers the operation through the current
* editor's <code>ITextOperationTarget</code> adapter, and sets the
* enabled state accordingly.
*/
public void update()
{
if ( fTargetProvider != null && fOperationCode != -1 )
{
ITextOperationTarget target = getTextOperationTarget();
boolean isEnabled = ( target != null && target.canDoOperation( fOperationCode ) );
setEnabled( isEnabled );
}
}
/**
* The <code>TextOperationAction</code> implementation of this
* <code>IAction</code> method runs the operation with the current
* operation code.
*/
public void run()
{
ITextOperationTarget target = getTextOperationTarget();
if ( fOperationCode != -1 && target != null )
target.doOperation( fOperationCode );
}
private ITextOperationTarget getTextOperationTarget()
{
if ( fOperationTarget == null )
{
if ( fTargetProvider != null )
return (ITextOperationTarget)fTargetProvider.getAdapter( ITextOperationTarget.class );
}
return fOperationTarget;
}
}
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