1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 function ContainerExtPropertyExtender() {

    18 }

    19 

    20 	// Return instances that may provide extension properties

    21 	// The target instance parameter is the instance to receive the

    22 	// additional properties

    23 ContainerExtPropertyExtender.prototype.getPropertyExtenders = function(instance, targetInstance) {

    24 	var result = null;

    25 	if (targetInstance == instance) {

    26 		result = [instance.parent];

    27 	}

    28 	else if (targetInstance.parent == instance) {

    29 		// Add container's extension properties and those of a known child component, if present

    30 		var extendingInstance = findImmediateChildByComponentID(instance.children, "com.nokia.examples.extensionChild");

    31 		if (extendingInstance == null)

    32 			extendingInstance = findImmediateChildByComponentID(instance.children, "com.nokia.examples.extensionChildMultiple");

    33 		if (targetInstance != extendingInstance) {

    34 			result = [instance];

    35 			if (extendingInstance != null) {

    36 				result[1] = extendingInstance;

    37 			}

    38 		}

    39 	}

    40 	return result;

    41 }

    42 	

    43 ContainerExtPropertyExtender.prototype.getExtensionSetNames = function(thisInstance, targetInstance) {

    44 	if (thisInstance.properties.controlConditionalExtensions)

    45 		return [ "default", "extra"];

    46 	else 

    47 		return [ "default" ];

    48 }

    49 

    50 function findImmediateChildByComponentID(children, componentID) {

    51     var result = null;

    52 	for (var i in children) {

    53 		if (children[i].componentId == componentID) {

    54 			result = children[i];

    55 			break;

    56 		}

    57 	}

    58 	return result;

    59 }

    60 

    61 ContainerExtPropertyExtender.prototype.propertyChanged = function(instance, propertyID, laf) {

    62 	if (propertyID == "controlConditionalExtensions" && instance.children != null) {

    63 	    var children = instance.children;

    64 	    for (var i in children) {

    65 	    	var child = children[i];

    66 	    	child.updatePropertySource();

    67 	    }

    68 	}

    69 }