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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">
+<link rel="import" href="../../../iron-flex-layout/iron-flex-layout.html">
+<link rel="import" href="../../neon-shared-element-animatable-behavior.html">
+
+<dom-module id="circles-page">
+  <template>
+    <style>
+      :host {
+        @apply --layout-horizontal;
+        @apply --layout-center-center;
+      }
+
+      .circle {
+        display: inline-block;
+        box-sizing: border-box;
+        width: 100px;
+        height: 100px;
+        margin: 16px;
+        border-radius: 50%;
+        background: var(--color-one);
+      }
+    </style>
+
+    <div>
+      <div class="circle"></div>
+      <div class="circle"></div>
+      <div class="circle"></div>
+      <div class="circle"></div>
+    </div>
+
+  </template>
+
+</dom-module>
+
+<script>
+
+  Polymer({
+
+    is: 'circles-page',
+
+    behaviors: [
+      Polymer.NeonSharedElementAnimatableBehavior
+    ],
+
+    properties: {
+
+      animationConfig: {
+        type: Object
+      }
+    },
+
+    listeners: {
+      'click': '_onClick'
+    },
+
+    attached: function() {
+      if (this.animationConfig) {
+        return;
+      }
+
+      var circles = Polymer.dom(this.root).querySelectorAll('.circle');
+      var circlesArray = Array.prototype.slice.call(circles);
+      this.animationConfig = {
+        'entry': [{
+          name: 'cascaded-animation',
+          animation: 'scale-up-animation',
+          nodes: circlesArray
+        }],
+
+        'exit': [{
+          name: 'hero-animation',
+          id: 'hero',
+          fromPage: this
+        }, {
+          name: 'cascaded-animation',
+          animation: 'scale-down-animation'
+        }]
+      };
+    },
+
+    _onClick: function(event) {
+      var target = Polymer.dom(event).rootTarget;
+
+      if (target.classList.contains('circle')) {
+        // configure the page animation
+        this.sharedElements = {
+          'hero': target
+        };
+
+        var nodesToScale = [];
+        var circles = Polymer.dom(this.root).querySelectorAll('.circle');
+
+        for (var node, index = 0; node = circles[index]; index++) {
+          if (node !== event.target) {
+            nodesToScale.push(node);
+          }
+        }
+
+        this.animationConfig['exit'][1].nodes = nodesToScale;
+        this.fire('circle-click');
+      }
+    }
+
+  });
+
+</script>