Skip to content

Instantly share code, notes, and snippets.

@frankiefu

frankiefu/gist:e42bc14d389e94b86d5a

Created June 26, 2015 16:45
Show Gist options
  • Save frankiefu/e42bc14d389e94b86d5a to your computer and use it in GitHub Desktop.
Save frankiefu/e42bc14d389e94b86d5a to your computer and use it in GitHub Desktop.
Download ZIP
Raw
gistfile1.html
<!doctype html>
<!--
@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
-->
<html>
<head>
<title>paper-scroll-header-panel: demo4</title>
<meta name="viewport" content="width=device-width, minimum-scale=1.0, initial-scale=1.0, user-scalable=yes">
<meta name="mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-capable" content="yes">
<script src="../../webcomponentsjs/webcomponents-lite.js"></script>
<link rel="import" href="../paper-scroll-header-panel.html">
<link rel="import" href="../../paper-toolbar/paper-toolbar.html">
<link rel="import" href="../../iron-icons/iron-icons.html">
<link rel="import" href="../../paper-icon-button/paper-icon-button.html">
<link rel="import" href="sample-content.html">
<link rel="stylesheet" href="../../paper-styles/demo.css">
<style is="custom-style">
paper-scroll-header-panel {
position: absolute;
top: 0;
right: 0;
bottom: 0;
left: 0;
background-color: var(--paper-grey-200, #eee);
}
paper-toolbar.tall {
background-color: var(--paper-deep-orange-500, #ff5722);
}
.title-container {
height: 100%;
margin-left: 60px;
}
paper-toolbar.tall .title {
font-size: 40px;
-webkit-transform-origin: left center;
transform-origin: left center;
}
.content {
padding: 8px;
}
</style>
</head>
<body unresolved>
<paper-scroll-header-panel condenses keep-condensed-header>
<paper-toolbar class="tall">
<paper-icon-button icon="arrow-back"></paper-icon-button>
<div class="flex"></div>
<paper-icon-button icon="search"></paper-icon-button>
<paper-icon-button icon="more-vert"></paper-icon-button>
<div class="middle title-container center horizontal layout">
<div class="title">Title</div>
</div>
</paper-toolbar>
<div class="content">
<sample-content size="100"></sample-content>
</div>
</paper-scroll-header-panel>
<script>
// custom transformation: scale header's title
var title = document.querySelector('.title');
var titleContainer = document.querySelector('.title-container');
addEventListener('paper-header-transform', function(e) {
var d = e.detail;
var m = d.height - d.condensedHeight;
var y = Math.min(1, d.y / m);
var scale = Math.max(0.75, (m - d.y) / (m / 0.25) + 0.75);
// move/translate titleContainer
Polymer.Base.transform('translate3d(0,' + y * 100 + '%,0)', titleContainer);
// scale title
Polymer.Base.transform('scale(' + scale + ') translateZ(0)', title);
});
</script>
</body>
</html>
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment