/**

 * Copyright (c) 2009-2010 Symbian Foundation 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:

 * 

 */

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

// The View class is an abstract base class for views in the UI toolkit.

// Don't use the View directly - instead use a concrete subclass like ListView.

// Constructor.

function View(id) {

    if (id != UI_NO_INIT_ID) {

        this.init(id);

    }

}

// View inherits from UIElement.

View.prototype = new UIElement(UI_NO_INIT_ID);

// Currently focused control.

View.prototype.focusedControl = null;

// Initializer - called from constructor.

View.prototype.init = function(id) {

    uiLogger.debug("View.init(" + id + ")");

    // call superclass initializer

    UIElement.prototype.init.call(this, id);

};

// Returns the currently focused control; null if none.

View.prototype.getFocusedControl = function() {

    return this.focusedControl;

};

// Used to notify the view that the focused control has changed.

View.prototype.focusedControlChanged = function(control) {

    uiLogger.debug("View.focusedControlChanged(" + control + ")");

    this.focusedControl = control;

    // notify event listeners

    this.fireEvent(this.createEvent("FocusedControlChanged", this.focusedControl));

};

// Attempts to focus the first focusable control.

// Override in subclasses as required.

View.prototype.focusFirstControl = function() {

    uiLogger.debug("View.focusFirstControl()");

};

// Attempts to reset all control focus states.

// Override in subclasses as required.

View.prototype.resetControlFocusStates = function() {

    uiLogger.debug("View.resetControlFocusStates()");

};