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bower_components/neon-animation/neon-animation-runner-behavior.html 3.5 KB
73bcce88   luigser   COMPONENTS
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  <!--
  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">
  <link rel="import" href="../iron-meta/iron-meta.html">
  <link rel="import" href="neon-animatable-behavior.html">
  
  <script>
  
    /**
     * `Polymer.NeonAnimationRunnerBehavior` adds a method to run animations.
     *
     * @polymerBehavior Polymer.NeonAnimationRunnerBehavior
     */
    Polymer.NeonAnimationRunnerBehaviorImpl = {
  
      properties: {
  
        _animationMeta: {
          type: Object,
          value: function() {
            return new Polymer.IronMeta({type: 'animation'});
          }
        },
  
        /** @type {?Object} */
        _player: {
          type: Object
        }
  
      },
  
      _configureAnimationEffects: function(allConfigs) {
        var allAnimations = [];
        if (allConfigs.length > 0) {
          for (var config, index = 0; config = allConfigs[index]; index++) {
            var animationConstructor = this._animationMeta.byKey(config.name);
            if (animationConstructor) {
              var animation = animationConstructor && new animationConstructor();
              var effect = animation.configure(config);
              if (effect) {
                allAnimations.push({
                  animation: animation,
                  config: config,
                  effect: effect
                });
              }
            } else {
              console.warn(this.is + ':', config.name, 'not found!');
            }
          }
        }
        return allAnimations;
      },
  
      _runAnimationEffects: function(allEffects) {
        return document.timeline.play(new GroupEffect(allEffects));
      },
  
      _completeAnimations: function(allAnimations) {
        for (var animation, index = 0; animation = allAnimations[index]; index++) {
          animation.animation.complete(animation.config);
        }
      },
  
      /**
       * Plays an animation with an optional `type`.
       * @param {string=} type
       * @param {!Object=} cookie
       */
      playAnimation: function(type, cookie) {
        var allConfigs = this.getAnimationConfig(type);
        if (!allConfigs) {
          return;
        }
        var allAnimations = this._configureAnimationEffects(allConfigs);
        var allEffects = allAnimations.map(function(animation) {
          return animation.effect;
        });
  
        if (allEffects.length > 0) {
          this._player = this._runAnimationEffects(allEffects);
          this._player.onfinish = function() {
            this._completeAnimations(allAnimations);
  
            if (this._player) {
              this._player.cancel();
              this._player = null;
            }
  
            this.fire('neon-animation-finish', cookie, {bubbles: false});
          }.bind(this);
  
        } else {
          this.fire('neon-animation-finish', cookie, {bubbles: false});
        }
      },
  
      /**
       * Cancels the currently running animation.
       */
      cancelAnimation: function() {
        if (this._player) {
          this._player.cancel();
        }
      }
    };
  
    /** @polymerBehavior Polymer.NeonAnimationRunnerBehavior */
    Polymer.NeonAnimationRunnerBehavior = [
      Polymer.NeonAnimatableBehavior,
      Polymer.NeonAnimationRunnerBehaviorImpl
    ];
  </script>