/**

 * 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:

 * Symbian Foundation - initial contribution.

 * Contributors:

 */

/*

IMPORTANT:  The Nokia software ("WRTKit and Example Widget files") is supplied to you by Nokia

and/or redistribution of the WRTKit and Example Widget files constitutes acceptance of these terms. If

you do not agree with these terms, please do not use, install, or redistribute the WRTKit and Example

Widget files.

In consideration of your agreement to abide by the following terms, and subject to these terms, Nokia

Widget files, to use, reproduce, and redistribute the WRTKit and Example files, in text form (for HTML,

CSS, or JavaScript files) or binary form (for associated images), for the sole purpose of creating S60

Widgets.

If you redistribute the WRTKit and Example files, you must retain this entire notice in all such

redistributions of the WRTKit and Example files.

You may not use the name, trademarks, service marks or logos of Nokia to endorse or promote products

that include the WRTKit and Example files without the prior written explicit agreement with Nokia.

Except as expressly stated in this notice, no other rights or licenses, express or implied, are granted by

Nokia herein, including but not limited to any patent rights that may be infringed by your products that

incorporate the WRTKit and Example files or by other works in which the WRTKit and Example files

may be incorporated.

The WRTKit and Example files are provided on an "AS IS" basis.  NOKIA MAKES NO

WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE, REGARDING THE EXAMPLES OR ITS USE AND OPERATION

ALONE OR IN COMBINATION WITH YOUR PRODUCTS.

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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

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OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE,

EVEN IF NOKIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

*/

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

// The FormButton class implements a button control for use in form-style UIs.

// Constructor.

function FormButton(id, text) {

    if (id != UI_NO_INIT_ID) {

        this.init(id, text);

    }

}

// FormButton inherits from ActionControl.

FormButton.prototype = new ActionControl(UI_NO_INIT_ID);

// Button table element.

FormButton.prototype.tableElement = null;

// Button table row element.

FormButton.prototype.tableRowElement = null;

// Button table left cell element.

FormButton.prototype.tableLeftCellElement = null;

// Button table center cell element.

FormButton.prototype.tableCenterCellElement = null;

// Button text element.

FormButton.prototype.textElement = null;

// Button table right cell element.

FormButton.prototype.tableRightCellElement = null;

// Initializer - called from constructor.

FormButton.prototype.init = function(id, text) {

    uiLogger.debug("FormButton.init(" + id + ", " + text + ")");

    // call superclass initializer

    ActionControl.prototype.init.call(this, id, null);

    // remove caption element

    this.assemblyElement.removeChild(this.captionElement);

    // construct the button

    this.buttonElement = document.createElement("div");

    this.tableElement = document.createElement("table");

    this.tableRowElement = document.createElement("tr");

    this.tableLeftCellElement = document.createElement("td");

    this.tableCenterCellElement = document.createElement("td");

    this.linkElement = document.createElement("a");

    this.linkElement.href = "JavaScript:void(0)";

    this.textElement = document.createElement("span");

    this.tableRightCellElement = document.createElement("td");

    this.tableElement.appendChild(this.tableRowElement);

    this.tableRowElement.appendChild(this.tableLeftCellElement);

    this.tableRowElement.appendChild(this.tableCenterCellElement);

    this.tableCenterCellElement.appendChild(this.linkElement);

    this.linkElement.appendChild(this.textElement);

    this.tableRowElement.appendChild(this.tableRightCellElement);

    this.buttonElement.appendChild(this.tableElement);

    this.controlElement.appendChild(this.buttonElement);

    // set the text

    this.setText(text);

    // bind event listeners

    this.bindActionControlListeners();

    // update the style

    this.updateStyleFromState();

};

// Sets the enabled state.

FormButton.prototype.setEnabled = function(enabled) {

    uiLogger.debug("FormButton.setEnabled(" + enabled + ")");

    // bail out early if there is no change in state

    if (this.enabled == enabled) {

        return;

    }

    // set the enabled state

    this.enabled = enabled;

    if (this.enabled) {

        // diabled -> enabled

        this.tableCenterCellElement.removeChild(this.textElement);

        this.tableCenterCellElement.appendChild(this.linkElement);

        this.linkElement.appendChild(this.textElement);

    } else {

        // enabled -> diabled

        this.linkElement.removeChild(this.textElement);

        this.tableCenterCellElement.removeChild(this.linkElement);

        this.tableCenterCellElement.appendChild(this.textElement);

    }

    // update the style

    this.updateStyleFromState();

};

// Returns the button text.

FormButton.prototype.getText = function() {

    return this.textElement.innerHTML;

};

// Sets the button text.

FormButton.prototype.setText = function(text) {

    uiLogger.debug("FormButton.setText(" + text + ")");

    this.textElement.innerHTML = (text == null) ? "" : text;;

};

// Updates the style of the control to reflects the state of the control.

FormButton.prototype.updateStyleFromState = function() {

    uiLogger.debug("FormButton.updateStyleFromState()");

    // determine the state name

    var stateName = this.getStyleStateName();

    // set root element class name

    this.setClassName(this.rootElement, "Control");

    // set the control assembly class names

    this.setClassName(this.assemblyElement, "ControlAssembly ControlAssemblyNormal");

    // control element

    this.setClassName(this.controlElement, "ControlElement FormButtonControlElement");

    // set the button table class names

    this.setClassName(this.buttonElement, "FormButton");

    this.setClassName(this.tableElement, "FormButtonTable");

    this.setClassName(this.tableRowElement, "FormButtonRow");

    this.setClassName(this.tableLeftCellElement, "FormButtonLeftCell FormButtonLeftCell" + stateName);

    this.setClassName(this.tableCenterCellElement, "FormButtonCenterCell FormButtonLeftCell" + stateName);

    this.setClassName(this.tableRightCellElement, "FormButtonRightCell FormButtonLeftCell" + stateName);

    // set the button text class name

    this.setClassName(this.textElement, "FormButtonText FormButtonText" + stateName);

};