Rename polymer and cr_elements v0_8 to v1_0

third_party/polymer/v0_8/components-chromium/iron-meta/iron-meta-extracted.js

-
-
-  (function() {
-
-    // monostate data
-    var metaDatas = {};
-    var metaArrays = {};
-
-    Polymer.IronMeta = Polymer({
-
-      is: 'iron-meta',
-
-      properties: {
-
-        /**
-         * The type of meta-data.  All meta-data of the same type is stored
-         * together.
-         *
-         * @attribute type
-         * @type String
-         * @default 'default'
-         */
-        type: {
-          type: String,
-          value: 'default',
-          observer: '_typeChanged'
-        },
-
-        /**
-         * The key used to store `value` under the `type` namespace.
-         *
-         * @attribute key
-         * @type String
-         * @default ''
-         */
-        key: {
-          type: String,
-          observer: '_keyChanged'
-        },
-
-        /**
-         * The meta-data to store or retrieve.
-         *
-         * @attribute value
-         * @type *
-         * @default this
-         */
-        value: {
-          type: Object,
-          notify: true,
-          observer: '_valueChanged'
-        },
-
-        /**
-         * If true, `value` is set to the iron-meta instance itself.
-         *
-         * @attribute self
-         * @type Boolean
-         * @default false
-         */
-         self: {
-          type: Boolean,
-          observer: '_selfChanged'
-        },
-
-        /**
-         * Array of all meta-data values for the given type.
-         *
-         * @property list
-         * @type Array
-         */
-        list: {
-          type: Array,
-          notify: true
-        }
-
-      },
-
-      /**
-       * Only runs if someone invokes the factory/constructor directly
-       * e.g. `new Polymer.IronMeta()`
-       */
-      factoryImpl: function(config) {
-        if (config) {
-          for (var n in config) {
-            switch(n) {
-              case 'type':
-              case 'key':
-              case 'value':
-                this[n] = config[n];
-                break;
-            }
-          }
-        }
-      },
-
-      created: function() {
-        // TODO(sjmiles): good for debugging?
-        this._metaDatas = metaDatas;
-        this._metaArrays = metaArrays;
-      },
-
-      _keyChanged: function(key, old) {
-        this._resetRegistration(old);
-      },
-
-      _valueChanged: function(value) {
-        this._resetRegistration(this.key);
-      },
-
-      _selfChanged: function(self) {
-        if (self) {
-          this.value = this;
-        }
-      },
-
-      _typeChanged: function(type) {
-        this._unregisterKey(this.key);
-        if (!metaDatas[type]) {
-          metaDatas[type] = {};
-        }
-        this._metaData = metaDatas[type];
-        if (!metaArrays[type]) {
-          metaArrays[type] = [];
-        }
-        this.list = metaArrays[type];
-        this._registerKeyValue(this.key, this.value);
-      },
-
-      /**
-       * Retrieves meta data value by key.
-       *
-       * @method byKey
-       * @param {String} key The key of the meta-data to be returned.
-       * @returns *
-       */
-      byKey: function(key) {
-        return this._metaData && this._metaData[key];
-      },
-
-      _resetRegistration: function(oldKey) {
-        this._unregisterKey(oldKey);
-        this._registerKeyValue(this.key, this.value);
-      },
-
-      _unregisterKey: function(key) {
-        this._unregister(key, this._metaData, this.list);
-      },
-
-      _registerKeyValue: function(key, value) {
-        this._register(key, value, this._metaData, this.list);
-      },
-
-      _register: function(key, value, data, list) {
-        if (key && data && value !== undefined) {
-          data[key] = value;
-          list.push(value);
-        }
-      },
-
-      _unregister: function(key, data, list) {
-        if (key && data) {
-          if (key in data) {
-            var value = data[key];
-            delete data[key];
-            this.arrayDelete(list, value);
-          }
-        }
-      }
-
-    });
-
-    /**
-    `iron-meta-query` can be used to access infomation stored in `iron-meta`.
-
-    Examples:
-
-    If I create an instance like this:
-
-        <iron-meta key="info" value="foo/bar"></iron-meta>
-
-    Note that keyUrl="foo/bar" is the metadata I've defined. I could define more
-    attributes or use child nodes to define additional metadata.
-
-    Now I can access that element (and it's metadata) from any `iron-meta-query` instance:
-
-         var value = new Polymer.IronMetaQuery({key: 'info'}).value;
-
-    @group Polymer Iron Elements
-    @element iron-meta-query
-    */
-    Polymer.IronMetaQuery = Polymer({
-
-      is: 'iron-meta-query',
-
-      properties: {
-
-        /**
-         * The type of meta-data.  All meta-data of the same type is stored
-         * together.
-         *
-         * @attribute type
-         * @type String
-         * @default 'default'
-         */
-        type: {
-          type: String,
-          value: 'default',
-          observer: '_typeChanged'
-        },
-
-        /**
-         * Specifies a key to use for retrieving `value` from the `type`
-         * namespace.
-         *
-         * @attribute key
-         * @type String
-         */
-        key: {
-          type: String,
-          observer: '_keyChanged'
-        },
-
-        /**
-         * The meta-data to store or retrieve.
-         *
-         * @attribute value
-         * @type *
-         * @default this
-         */
-        value: {
-          type: Object,
-          notify: true,
-          readOnly: true
-        },
-
-        /**
-         * Array of all meta-data values for the given type.
-         *
-         * @property list
-         * @type Array
-         */
-        list: {
-          type: Array,
-          notify: true
-        }
-
-      },
-
-      /**
-       * Actually a factory method, not a true constructor. Only runs if
-       * someone invokes it directly (via `new Polymer.IronMeta()`);
-       */
-      constructor: function(config) {
-        if (config) {
-          for (var n in config) {
-            switch(n) {
-              case 'type':
-              case 'key':
-                this[n] = config[n];
-                break;
-            }
-          }
-        }
-      },
-
-      created: function() {
-        // TODO(sjmiles): good for debugging?
-        this._metaDatas = metaDatas;
-        this._metaArrays = metaArrays;
-      },
-
-      _keyChanged: function(key) {
-        this._setValue(this._metaData && this._metaData[key]);
-      },
-
-      _typeChanged: function(type) {
-        this._metaData = metaDatas[type];
-        this.list = metaArrays[type];
-        if (this.key) {
-          this._keyChanged(this.key);
-        }
-      },
-
-      /**
-       * Retrieves meta data value by key.
-       *
-       * @method byKey
-       * @param {String} key The key of the meta-data to be returned.
-       * @returns *
-       */
-      byKey: function(key) {
-        return this._metaData && this._metaData[key];
-      }
-
-    });
-
-  })();