/*

* 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("../renderLibrary.js")

include("containerLibrary.js")

function CCoeControlLayout() {

}

CCoeControlLayout.prototype.layout = function(instance, laf) {

	var thisWidth = instance.properties.size.width;

	var thisHeight = instance.properties.size.height;

	var exclusiveChild = getExclusiveChild(instance.children);

	if (exclusiveChild != null) {

		setBounds(exclusiveChild, new Rectangle(0, 0, thisWidth, thisHeight));

	}

}

CCoeControlLayout.prototype.getPreferredSize = function(instance, laf, wHint, hHint) {

	return null;

}

function getExclusiveChild(children) {

	var result = null;

	for (var i = 0; i < children.length; i++) {

		var child = children[i];

		if (child.component != null && child.component.attributes["is-exclusive-child-layout-object"] == "true") {

			return children[i];

		}

	}

	return null;

}

///////////////////

function CCoeControlVisual() {

}

CCoeControlVisual.prototype.draw = function(instance, laf, graphics) {

	var properties = instance.properties;

	var color = colorFromString(laf, properties.backColor);

	if (color != null) {

		graphics.setBackground(color);

		graphics.fillRectangle(0, 0, properties.size.width, properties.size.height);

	}

	else {

		var properties = instance.properties;	

		var width = properties.size.width;

		var height = properties.size.height;

		graphics.setBackground(getBackgroundColor(instance, laf));

		graphics.fillRectangle(new Rectangle(0, 0, width, height));

	}

}

CCoeControlVisual.prototype.getPreferredSize = function(instance, laf, wHint, hHint) {

	return null; // not needed	

}

/////////////////////

function CCoeControlPropertyExtenders() {

}

	// Return instances that may provide extension properties

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

	// additional properties

CCoeControlPropertyExtenders.prototype.getPropertyExtenders = function(instance, targetInstance) {

	if (isAvkonView(targetInstance.parent) && !isPreviewPopUp(instance)) {

		return [instance];

	}

	return null;

}

CCoeControlPropertyExtenders.prototype.getExtensionSetNames = function(instance, targetInstance) {

	if (instance == targetInstance)

		return [ "default" ];

	return null;

}

/////////////////////

function CCoeControlQueryContainment() {

}

CCoeControlQueryContainment.prototype.getAllowedAttribute = function() {

	return "is-ccoecontrol-content";

}

setupAttributeBasedQueryContainment(CCoeControlQueryContainment.prototype);

/////////////////////////

function CCoeControlPropertyListener() {

}

CCoeControlPropertyListener.prototype.propertyChanged = function(instance, propertyId) {

	if (propertyId == "backColor") {

		// anything hosted on top may depend on the color

		for (var c in instance.children) {

			instance.children[c].forceRedraw();

		}

	}

}

/////////////////////////

function CCoeControlChildListener() {

}

CCoeControlChildListener.prototype.childAdded = function(instance, child, laf) {

	var properties = instance.properties;

	var childWantsFocus = hasAttributeValue(child.attributes, "wants-initial-focus", "true");

	var numFocusableChildren = 

		countImmediateChildrenWithAttributeValue(instance.children, "wants-initial-focus", "true");

	// if has no initial focus, but the child just added is the only one that wants it

	if ((properties.initialFocus == "") && childWantsFocus && (numFocusableChildren == 1))

		properties.initialFocus = child.name;

}

CCoeControlChildListener.prototype.childRemoved = function(instance, child, laf) {

	// nothing to do

}

CCoeControlChildListener.prototype.childrenReordered = function(instance, laf) {

	// nothing to do

}

//////////////////////////////////////////

// IComponentEventInfo

//////////////////////////////////////////

function CCoeControlEventInfo(){}

CCoeControlEventInfo.prototype.getEventGroups = function(instance) {

	// Get the proper events depending on the SDK.

	version = getComponentVersions();

	if (version.major >= 5) {

		// Add touch events

		return ["TouchUIEvent", "CustomCCoeControl", "CCoeControl"];

	}

	else {

		// sdks prior to touch

		return ["CustomCCoeControl", "CCoeControl"];

	}

}