1 /*

     2 © Copyright 2008 Nokia Corporation. All rights reserved.

     3 

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

     5 Corporation (“Nokia”) in consideration of your agreement to the following terms. Your use, installation

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

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

     8 Widget files.

     9 

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

    11 grants you a personal, non-exclusive license, under Nokia’s copyrights in the WRTKit and Example

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

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

    14 Widgets.

    15 

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

    17 redistributions of the WRTKit and Example files.

    18 

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

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

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

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

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

    24 may be incorporated.

    25 

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

    27 WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED

    28 WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A

    29 PARTICULAR PURPOSE, REGARDING THE EXAMPLES OR ITS USE AND OPERATION

    30 ALONE OR IN COMBINATION WITH YOUR PRODUCTS.

    31 

    32 IN NO EVENT SHALL NOKIA BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR

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

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

    35 INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, AND/OR

    36 DISTRIBUTION OF THE EXAMPLES, HOWEVER CAUSED AND WHETHER UNDER THEORY

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

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

    39 

    40 */

    41 

    42 ///////////////////////////////////////////////////////////////////////////////

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

    44 

    45 // Constructor.

    46 function FormButton(id, text) {

    47     if (id != UI_NO_INIT_ID) {

    48         this.init(id, text);

    49     }

    50 }

    51 

    52 // FormButton inherits from ActionControl.

    53 FormButton.prototype = new ActionControl(UI_NO_INIT_ID);

    54 

    55 // Button table element.

    56 FormButton.prototype.tableElement = null;

    57 

    58 // Button table row element.

    59 FormButton.prototype.tableRowElement = null;

    60 

    61 // Button table left cell element.

    62 FormButton.prototype.tableLeftCellElement = null;

    63 

    64 // Button table center cell element.

    65 FormButton.prototype.tableCenterCellElement = null;

    66 

    67 // Button text element.

    68 FormButton.prototype.textElement = null;

    69 

    70 // Button table right cell element.

    71 FormButton.prototype.tableRightCellElement = null;

    72 

    73 // Initializer - called from constructor.

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

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

    76     

    77     // call superclass initializer

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

    79     

    80     // remove caption element

    81     this.assemblyElement.removeChild(this.captionElement);

    82     

    83     // construct the button

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

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

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

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

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

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

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

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

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

    93     this.tableElement.appendChild(this.tableRowElement);

    94     this.tableRowElement.appendChild(this.tableLeftCellElement);

    95     this.tableRowElement.appendChild(this.tableCenterCellElement);

    96     this.tableCenterCellElement.appendChild(this.linkElement);

    97     this.linkElement.appendChild(this.textElement);

    98     this.tableRowElement.appendChild(this.tableRightCellElement);

    99     this.buttonElement.appendChild(this.tableElement);

   100     this.controlElement.appendChild(this.buttonElement);

   101     

   102     // set the text

   103     this.setText(text);

   104     

   105     // bind event listeners

   106     this.bindActionControlListeners();

   107     

   108     // update the style

   109     this.updateStyleFromState();

   110 }

   111 

   112 // Sets the enabled state.

   113 FormButton.prototype.setEnabled = function(enabled) {

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

   115     

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

   117     if (this.enabled == enabled) {

   118         return;

   119     }

   120     

   121     // set the enabled state

   122     this.enabled = enabled;

   123     

   124     if (this.enabled) {

   125         // diabled -> enabled

   126         this.tableCenterCellElement.removeChild(this.textElement);

   127         this.tableCenterCellElement.appendChild(this.linkElement);

   128         this.linkElement.appendChild(this.textElement);

   129     } else {

   130         // enabled -> diabled

   131         this.linkElement.removeChild(this.textElement);

   132         this.tableCenterCellElement.removeChild(this.linkElement);

   133         this.tableCenterCellElement.appendChild(this.textElement);

   134     }

   135     

   136     // update the style

   137     this.updateStyleFromState();

   138 }

   139 

   140 // Returns the button text.

   141 FormButton.prototype.getText = function() {

   142     return this.textElement.innerHTML;

   143 }

   144 

   145 // Sets the button text.

   146 FormButton.prototype.setText = function(text) {

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

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

   149 }

   150 

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

   152 FormButton.prototype.updateStyleFromState = function() {

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

   154     

   155     // determine the state name

   156     var stateName = this.getStyleStateName();

   157     

   158     // set root element class name

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

   160     

   161     // set the control assembly class names

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

   163     

   164     // control element

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

   166     

   167     // set the button table class names

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

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

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

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

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

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

   174     

   175     // set the button text class name

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

   177 }