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bower_components/iron-form-element-behavior/iron-form-element-behavior.html 2.24 KB
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  <!--
  @license
  Copyright (c) 2015 The Polymer Project Authors. All rights reserved.
  This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
  The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
  The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
  Code distributed by Google as part of the polymer project is also
  subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
  -->
  
  <link rel="import" href="../polymer/polymer.html">
  
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  <script>
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    /**
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    Polymer.IronFormElementBehavior enables a custom element to be included
    in an `iron-form`.
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    @demo demo/index.html
    @polymerBehavior
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    */
    Polymer.IronFormElementBehavior = {
  
      properties: {
        /**
         * Fired when the element is added to an `iron-form`.
         *
         * @event iron-form-element-register
         */
  
        /**
         * Fired when the element is removed from an `iron-form`.
         *
         * @event iron-form-element-unregister
         */
  
        /**
         * The name of this element.
         */
        name: {
          type: String
        },
  
        /**
         * The value for this element.
         */
        value: {
          notify: true,
          type: String
        },
  
        /**
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         * Set to true to mark the input as required. If used in a form, a
         * custom element that uses this behavior should also use
         * Polymer.IronValidatableBehavior and define a custom validation method.
         * Otherwise, a `required` element will always be considered valid.
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         * It's also strongly recommended to provide a visual style for the element
         * when its value is invalid.
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         */
        required: {
          type: Boolean,
          value: false
        },
  
        /**
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         * The form that the element is registered to.
         */
        _parentForm: {
          type: Object
        }
      },
  
      attached: function() {
        // Note: the iron-form that this element belongs to will set this
        // element's _parentForm property when handling this event.
        this.fire('iron-form-element-register');
      },
  
      detached: function() {
        if (this._parentForm) {
          this._parentForm.fire('iron-form-element-unregister', {target: this});
        }
      }
  
    };
  
  </script>