SOURCE CODE: Uize.Widget.Button.Filter (view docs)

/*______________
|       ______  |   U I Z E    J A V A S C R I P T    F R A M E W O R K
|     /      /  |   ---------------------------------------------------
|    /    O /   |    MODULE : Uize.Widget.Button.Filter Class
|   /    / /    |
|  /    / /  /| |    ONLINE : http://www.uize.com
| /____/ /__/_| | COPYRIGHT : (c)2010-2016 UIZE
|          /___ |   LICENSE : Available under MIT License or GNU General Public License
|_______________|             http://www.uize.com/license.html
*/

/* Module Meta Data
  type: Class
  importance: 7
  codeCompleteness: 100
  docCompleteness: 0
*/

/*?
  Introduction
    The =Uize.Widget.Button.Filter= widget provides functionality for a filter button within a =Uize.Widget.Options.FilterGroup= widget.

    *DEVELOPERS:* `Ben Ilegbodu`, original code contributed by `Zazzle Inc.`
*/

Uize.module ({
  name:'Uize.Widget.Button.Filter',
  required:'Uize.Dom.Classes',
  builder:function (_superclass) {
    'use strict';

    /*** Private Instance Methods ***/
      function _updateUiLabel () {
        var m = this;

        if (m.isWired) {
          var
            _label = m._label,
            _labelWithCount = m.localize(
              'filterWithCount',
              {
                filterLabel:_label,
                count:m._count
              }
            )
          ;

          m.set({
            text:m._showCount && _labelWithCount
              ? _labelWithCount
              : _label
          });
        }
      }

      function _updateUiDisplayState () {
        var m = this;

        if (m.isWired) {
          var
            _Uize_Dom_Classes = Uize.Dom.Classes,
            _rootNode = m.getNode()
          ;

          _Uize_Dom_Classes.setState(
            _rootNode,
            ['', m._cssClassFeatured],
            m._featured
          );
          _Uize_Dom_Classes.setState(
            _rootNode,
            ['', m._cssClassDisabled],
            !m.get('enabledInherited')
          );
          _Uize_Dom_Classes.setState(
            _rootNode,
            ['', m._cssClassSelected],
            m.get('selected')
          );
        }
      }

    return _superclass.subclass ({
      omegastructor:function () {
        var
          m = this,
          _boundUpdateUiDisplayState = function () { _updateUiDisplayState.call(m) }
        ;

        m.wire({
          'Changed.enabledInherited':_boundUpdateUiDisplayState,
          'Changed.selected':_boundUpdateUiDisplayState
        });
      },

      instanceMethods:{
        updateUi:function () {
          var m = this;
          if (m.isWired) {
            _updateUiLabel.call(m);
            _updateUiDisplayState.call(m);
            _superclass.doMy (m,'updateUi');
          }
        }
      },

      stateProperties:{
        _count:{
          name:'count',
          onChange:_updateUiLabel
        },
        _cssClassDisabled:{
          name:'cssClassDisabled',
          onChange:_updateUiDisplayState,
          value:''
        },
        _cssClassFeatured:{
          name:'cssClassFeatured',
          onChange:_updateUiDisplayState,
          value:''
        },
        _cssClassSelected:{
          name:'cssClassSelected',
          onChange:_updateUiDisplayState,
          value:''
        },
        _featured:{
          name:'featured',
          onChange:_updateUiDisplayState
        },
        _label:{
          name:'label',
          onChange:_updateUiLabel
        },
        _showCount:{
          name:'showCount',
          onChange:_updateUiLabel
        }
      }
    });
  }
});