paper-menu-button-animations.js

/**
@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
*/
import '@polymer/polymer/polymer-legacy.js';

import {NeonAnimationBehavior} from '@polymer/neon-animation/neon-animation-behavior.js';
import {Polymer} from '@polymer/polymer/lib/legacy/polymer-fn.js';
Polymer({
  is: 'paper-menu-grow-height-animation',
  /** @override */
  _template: null,

  behaviors: [NeonAnimationBehavior],

  configure: function(config) {
    var node = config.node;
    var rect = node.getBoundingClientRect();
    var height = rect.height;

    this._effect = new KeyframeEffect(
        node,
        [{height: (height / 2) + 'px'}, {height: height + 'px'}],
        this.timingFromConfig(config));

    return this._effect;
  }
});

Polymer({
  is: 'paper-menu-grow-width-animation',
  _template: null,

  behaviors: [NeonAnimationBehavior],

  configure: function(config) {
    var node = config.node;
    var rect = node.getBoundingClientRect();
    var width = rect.width;

    this._effect = new KeyframeEffect(
        node,
        [{width: (width / 2) + 'px'}, {width: width + 'px'}],
        this.timingFromConfig(config));

    return this._effect;
  }
});

Polymer({
  is: 'paper-menu-shrink-width-animation',
  _template: null,

  behaviors: [NeonAnimationBehavior],

  configure: function(config) {
    var node = config.node;
    var rect = node.getBoundingClientRect();
    var width = rect.width;

    this._effect = new KeyframeEffect(
        node,
        [{width: width + 'px'}, {width: width - (width / 20) + 'px'}],
        this.timingFromConfig(config));

    return this._effect;
  }
});

Polymer({
  is: 'paper-menu-shrink-height-animation',
  _template: null,

  behaviors: [NeonAnimationBehavior],

  configure: function(config) {
    var node = config.node;
    var rect = node.getBoundingClientRect();
    var height = rect.height;

    this.setPrefixedProperty(node, 'transformOrigin', '0 0');

    this._effect = new KeyframeEffect(
        node,
        [
          {height: height + 'px', transform: 'translateY(0)'},
          {height: height / 2 + 'px', transform: 'translateY(-20px)'}
        ],
        this.timingFromConfig(config));

    return this._effect;
  }
});