1 /**

     2  * Copyright (c) 2009-2010 Symbian Foundation 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 

    18 ///////////////////////////////////////////////////////////////////////////////

    19 // The Label class implements a control that displays textual content.

    20 

    21 // Constructor.

    22 function Label(id, caption, text) {

    23     if (id != UI_NO_INIT_ID) {

    24         this.init(id, caption, text);

    25     }

    26 }

    27 

    28 // Label inherits from Control.

    29 Label.prototype = new Control(UI_NO_INIT_ID);

    30 

    31 // Content element for label text.

    32 Label.prototype.contentElement = null;

    33 

    34 // Initializer - called from constructor.

    35 Label.prototype.init = function(id, caption, text) {

    36     uiLogger.debug("Label.init(" + id + ", " + caption + ", " + text + ")");

    37     

    38     // call superclass initializer

    39     Control.prototype.init.call(this, id, caption);

    40     

    41     // create content element

    42     this.contentElement = document.createElement("div");

    43     this.controlElement.appendChild(this.contentElement);

    44     

    45     // set the text

    46     this.setText(text);

    47 };

    48 

    49 // Returns the enabled state for the control.

    50 Label.prototype.isEnabled = function() {

    51     return true;

    52 };

    53 

    54 // Returns the focusable state for the control.

    55 Label.prototype.isFocusable = function() {

    56     return false;

    57 };

    58 

    59 // Returns the control text.

    60 Label.prototype.getText = function() {

    61     return this.contentElement.innerHTML;

    62 };

    63 

    64 // Sets the text for the control.

    65 Label.prototype.setText = function(text) {

    66     uiLogger.debug("Label.setText(" + text + ")");

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

    68     this.updateStyleFromState();

    69 };

    70 

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

    72 Label.prototype.updateStyleFromState = function() {

    73     uiLogger.debug("Label.updateStyleFromState()");

    74     

    75     // set element class names

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

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

    78     this.setClassName(this.captionElement, "ControlCaption ControlCaptionNormal");

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

    80     this.setClassName(this.contentElement, "LabelText");

    81 };