/*

* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:

*

* Dialog flag to add function parameter to trace

*

*/

package com.nokia.tracebuilder.engine.rules;

import java.util.ArrayList;

import java.util.List;

import com.nokia.tracebuilder.engine.SourceContextManager;

import com.nokia.tracebuilder.engine.TraceBuilderGlobals;

import com.nokia.tracebuilder.engine.TraceObjectPropertyDialogTemplate;

import com.nokia.tracebuilder.model.TraceModelExtension;

import com.nokia.tracebuilder.source.SourceContext;

import com.nokia.tracebuilder.source.SourceParameter;

import com.nokia.tracebuilder.source.SourceParserException;

/**

 * Dialog flag to add function parameter to trace. This creates a

 * AutoAddFunctionParametersRule to the trace(s) created by the dialog.

 * 

 */

final class AddFunctionParametersFlag extends DialogDynamicFlagBase {

	/**

	 * Title shown in UI

	 */

	private static final String UI_TITLE = Messages

			.getString("AddFunctionParametersFlag.Title"); //$NON-NLS-1$

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracebuilder.engine.TraceObjectPropertyDialogFlag#

	 *      createExtensions(java.util.List)

	 */

	public void createExtensions(List<TraceModelExtension> extList) {

		extList.add(new AutoAddFunctionParametersRule());

		extList.add(new ComplexHeaderRuleImpl());

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracebuilder.engine.TraceObjectPropertyDialogFlag#getText()

	 */

	public String getText() {

		return UI_TITLE;

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracebuilder.engine.rules.DialogFlagBase#isVisible()

	 */

	@Override

	public boolean isVisible() {

		SourceContextManager manager = TraceBuilderGlobals

				.getSourceContextManager();

		boolean retval = false;

		if (manager.isInstrumenting()) {

			retval = true;

		} else {

			// If not instrumenting, the current context must

			// exist and have parameters

			SourceContext context = manager.getContext();

			if (context != null) {

				ArrayList<SourceParameter> list = new ArrayList<SourceParameter>();

				try {

					context.parseParameters(list);

					if (list.size() > 0) {

						retval = true;

					}

				} catch (SourceParserException e) {

				}

			}

		}

		return retval;

	}

	/*

	 * (non-Javadoc)

	 * 

	 * @see com.nokia.tracebuilder.engine.rules.DialogDynamicFlagBase#

	 *      templateChanged(com.nokia.tracebuilder.engine.TraceObjectPropertyDialogTemplate)

	 */

	@Override

	public boolean templateChanged(TraceObjectPropertyDialogTemplate template) {

		boolean changed = false;

		if (template == null || template instanceof EntryExitTraceTemplate

				|| template instanceof EntryExitInstrumenterTemplate) {

			if (!isAvailable()) {

				changed = true;

				setAvailable(true);

			}

		} else {

			if (isAvailable()) {

				changed = true;

				setAvailable(false);

			}

		}

		return changed;

	}

}