src/src/mixin/Identifiable.js

   1 //@tag dom,core
   2 //@require Ext.dom.Helper
   3
   4 /**
   5  * An Identifiable mixin.
   6  * @private
   7  */
   8 Ext.define('Ext.mixin.Identifiable', {
   9     statics: {
  10         uniqueIds: {}
  11     },
  12
  13     isIdentifiable: true,
  14
  15     mixinId: 'identifiable',
  16
  17     idCleanRegex: /\.|[^\w\-]/g,
  18
  19     defaultIdPrefix: 'ext-',
  20
  21     defaultIdSeparator: '-',
  22
  23     getOptimizedId: function() {
  24         return this.id;
  25     },
  26
  27     getUniqueId: function() {
  28         var id = this.id,
  29             prototype, separator, xtype, uniqueIds, prefix;
  30
  31         if (!id) {
  32             prototype = this.self.prototype;
  33             separator = this.defaultIdSeparator;
  34
  35             uniqueIds = Ext.mixin.Identifiable.uniqueIds;
  36
  37             if (!prototype.hasOwnProperty('identifiablePrefix')) {
  38                 xtype = this.xtype;
  39
  40                 if (xtype) {
  41                     prefix = this.defaultIdPrefix + xtype + separator;
  42                 }
  43                 else {
  44                     prefix = prototype.$className.replace(this.idCleanRegex, separator).toLowerCase() + separator;
  45                 }
  46
  47                 prototype.identifiablePrefix = prefix;
  48             }
  49
  50             prefix = this.identifiablePrefix;
  51
  52             if (!uniqueIds.hasOwnProperty(prefix)) {
  53                 uniqueIds[prefix] = 0;
  54             }
  55
  56             id = this.id = prefix + (++uniqueIds[prefix]);
  57         }
  58
  59         this.getUniqueId = this.getOptimizedId;
  60
  61         return id;
  62     },
  63
  64     setId: function(id) {
  65         this.id = id;
  66     },
  67
  68     /**
  69      * Retrieves the id of this component. Will autogenerate an id if one has not already been set.
  70      * @return {String} id
  71      */
  72     getId: function() {
  73         var id = this.id;
  74
  75         if (!id) {
  76             id = this.getUniqueId();
  77         }
  78
  79         this.getId = this.getOptimizedId;
  80
  81         return id;
  82     }
  83 });