/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

*

*/

include("containerLibrary.js")

/**

 *	Get the layout data.

 *

 *  If Layout Data is different than "Inherit", then the layout data is returned,

 *	if not, iterate over all parent relationship.

 *

 *	@param instance the instance where look in the layout data.

 *	@param propertyPath the name of the property to analize.

 *	@param propertyDefaultValue the default value of propertyPath which will 

 *	determine if the parent layout data should be reviewed or not.

 *	@return the layout data.

 */

function getLayoutData ( instance, propertyPath, propertyDefaultValue ) {

	var container = "com.nokia.carbide.uiq.CQikContainer";

	var sbb = "com.nokia.carbide.uiq.SystemBuildingBlock";

	var slot = "com.nokia.carbide.uiq.ItemSlot";

	var viewPage = "com.nokia.carbide.uiq.ViewPage";

	var containersGroup = "com.nokia.carbide.uiq.ContainersGroup";

	var parentInstance = instance.parent;

	var parentID = instance.parent.component.id;

	var properties = instance.properties;

	var layoutManagerInstance = null; 

	var layoutData = null;

	while ((parentInstance != null) && (parentID != viewPage) && (parentID != containersGroup)) {

		if (parentID == container) {

			//println("**************** parent: container");

			layoutManagerInstance = findImmediateChildByAttributeValue( parentInstance.children, "is-layout-manager", "true");

			if ( layoutManagerInstance == null ) {

				return propertyDefaultValue;

			}

			layoutData = instance.properties.layoutData[propertyPath];

			if ( layoutData != propertyDefaultValue ) {

				return layoutData

			}

			return getLayoutData ( parentInstance, propertyPath, propertyDefaultValue );

		}

		if (parentID == slot) {

			//println("**************** parent: slot");

			return getLayoutData ( parentInstance, propertyPath, propertyDefaultValue );

		}

		if (parentID == sbb) {

			//println("**************** parent: SBB");

			layoutManagerInstance = findImmediateChildByAttributeValue( parentInstance.parent.children, "is-layout-manager", "true");

			if ( layoutManagerInstance == null ) {

				return propertyDefaultValue;

			}

			layoutData = parentInstance.properties.layoutData[propertyPath];

			if ( layoutData != propertyDefaultValue ) {

				return layoutData

			}

			return getLayoutData ( parentInstance, propertyPath, propertyDefaultValue );

		}

		return propertyDefaultValue;

	}

	return getLayoutManagerLayoutData( instance.children, propertyPath, propertyDefaultValue );

}

/**

 *	Get the layout data of LayoutManager.

 *

 *  If Layout Manager is null, then the default value of the property will be

 *	returned.

 *

 *	@param children the children where look in the layout data.

 *	@param propertyPath the name of the property to analize.

 *	@param propertyDefaultValue the default value of propertyPath.

 *	@return the layout data of LayoutManager or propertyDefaultValue if 

 *	LayoutManager is null .

 */

function getLayoutManagerLayoutData( children, propertyPath, propertyDefaultValue ) {

	var layoutManager = findImmediateChildByAttributeValue( children, "is-layout-manager", "true");

	if (layoutManager != null) {

		//println("**************** sister: layout Manager");

		return layoutManager.properties.defaultLayoutData[propertyPath];

	}

	return propertyDefaultValue;

}