designer

designer.html

<link rel="import" href="../core-icon-button/core-icon-button.html">
<link rel="import" href="../core-toolbar/core-toolbar.html">
<link rel="import" href="../core-scroll-header-panel/core-scroll-header-panel.html">

<polymer-element name="my-element">

  <template>
    <style>    
      :host {
        position: absolute;
        width: 100%;
        height: 100%;
        box-sizing: border-box;
      }
      #core_scroll_header_panel {
        width: 100%;
        height: 100%;
        left: 0px;
        top: 0px;
        position: absolute;
      }
      #core_toolbar {
        color: rgb(241, 241, 241);
        fill: rgb(241, 241, 241);
        background-color: rgb(66, 133, 244);
      }
      #title {
        font-size: 40px;
      }
      #section {
        height: 2000px;
      }
    </style>
    <core-scroll-header-panel condenses headerheight="192" condensedheaderheight="64" id="core_scroll_header_panel" on-core-header-transform="{{ resizeTitle }}">
      <core-toolbar id="core_toolbar" class="tall">
        <core-icon-button icon="arrow-back" id="core_icon_button"></core-icon-button>
        <div id="div" flex></div>
        <core-icon-button icon="search" id="core_icon_button1"></core-icon-button>
        <core-icon-button icon="more-vert" id="core_icon_button2"></core-icon-button>
        <div id="title" class="bottom indent">Chromium Dashboard</div>
      </core-toolbar>
      <section id="section" content>
        <p>sdf;lkjfdl;kjfdsafdsaf</p>
        <p>sdf;lkjfdl;kjfdsafdsaf</p>
        <p>sdf;lkjfdl;kjfdsafdsaf</p>
        <p>sdf;lkjfdl;kjfdsafdsaf</p>
        <p>sdf;lkjfdl;kjfdsafdsaf</p>
        <p>sdf;lkjfdl;kjfdsafdsaf</p>
        <p>sdf;lkjfdl;kjfdsafdsaf</p>
        <p>sdf;lkjfdl;kjfdsafdsaf</p>
        <p>sdf;lkjfdl;kjfdsafdsaf</p>
      </section>
    </core-scroll-header-panel>
  </template>

  <script>

    Polymer('my-element', {
      resizeTitle: function (e) {
        console.log(e);
        var d = e.detail;
        var m = d.height - d.condensedHeight;
        var scale = Math.max(0.75, (m - d.y) / (m / 0.25)  + 0.75);
        this.$.title.style.webkitTransform = this.$.title.style.transform = 
            'scale(' + scale + ') translateZ(0)';
      }
    });

  </script>

</polymer-element>