animated-dropdown.html
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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="../../../paper-styles/paper-styles.html">
<link rel="import" href="../../neon-animation-runner-behavior.html">
<dom-module id="animated-dropdown">
<style>
:host {
display: none;
padding: 16px;
background: white;
color: black;
@apply(--shadow-elevation-2dp);
}
</style>
<template>
<content></content>
</template>
</dom-module>
<script>
Polymer({
is: 'animated-dropdown',
behaviors: [
Polymer.NeonAnimationRunnerBehavior
],
properties: {
animationConfig: {
type: Object,
value: function() {
return {
'entry': [{
name: 'scale-up-animation',
node: this,
transformOrigin: '0 0'
}],
'exit': [{
name: 'fade-out-animation',
node: this
}]
}
}
},
_showing: {
type: Boolean,
value: false
}
},
listeners: {
'neon-animation-finish': '_onAnimationFinish'
},
_onAnimationFinish: function() {
if (this._showing) {
} else {
this.style.display = '';
}
},
show: function() {
this.style.display = 'inline-block';
this._showing = true;
this.playAnimation('entry');
},
hide: function() {
this._showing = false;
this.playAnimation('exit');
}
});
</script>