/*

* Copyright (c) 2006 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("../containers/containerLibrary.js")

function CAknAppUiQueryContainment() {

}

// can contain single instance of navi content, control or status panes

function canContainComponent(component, children) {

	var hasInstance = false;

	var isAllowedType = false;

	if (isControlPane(component)) {

		isAllowedType = true;

		if (getControlPane(children) != null)

			hasInstance = true;

	}

	if (isStatusPaneId(component.id)) {

		isAllowedType = true;

		if (getStatusPane(children) != null)

			hasInstance = true;

	}

	if (isDesignRef(component))

		isAllowedType = true;

	if (hasInstance)

		return buildSimpleContainmentErrorStatus(

			lookupString("singleInstanceContainmentError"), 

			new Array( component.friendlyName ));			

	if (!isAllowedType)

		return buildSimpleContainmentErrorStatus(

			lookupString("generalContainmentError"), 

			new Array( component.friendlyName ));

	return null;

}

CAknAppUiQueryContainment.prototype.canContainComponent = function(instance, otherComponent) {

	return canContainComponent(otherComponent, instance.children);

}

CAknAppUiQueryContainment.prototype.canContainChild = function(instance, child) {

	return canContainComponent(child.component, instance.children);

}

CAknAppUiQueryContainment.prototype.canRemoveChild = function(instance, child) {

	// Attribute of is-not-user-removable on design refs will ensure that 

	// all deletion commands not enabled on them, 

	// however we must allow their programmatic deletion.

	if (isDesignRef(child.component))

		return true;

	return false;

}

CAknAppUiQueryContainment.prototype.isValidComponentInPalette = function(instance, otherComponent) {

	return isControlPane(otherComponent) || isStatusPaneId(otherComponent.id);

}