<!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); /* background for toolbar when it is at its full size */ --paper-scroll-header-panel-full-header: { background-image: url(images/bg6.jpg); }; /* background for toolbar when it is condensed */ --paper-scroll-header-panel-condensed-header: { background-color: var(--paper-deep-orange-500, #ff5722); }; } paper-toolbar.tall { background-color: transparent; } paper-toolbar.tall .title { font-size: 40px; margin-left: 60px; -webkit-transform-origin: left center; transform-origin: left center; } .content { padding: 8px; } </style> </head> <body unresolved> <paper-scroll-header-panel condenses> <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="bottom title">Title</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'); addEventListener('paper-header-transform', function(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); Polymer.Base.transform('scale(' + scale + ') translateZ(0)', title); }); </script> </body> </html>