| // Copyright (c) 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| function add_link(url, rel) { |
| var link = document.getElementById(rel) || document.createElement('link'); |
| link.id = rel; |
| link.rel = rel; |
| link.href = url; |
| document.body.appendChild(link); |
| } |
| |
| function prerender_url() { |
| var anchor = document.getElementById('anchor'); |
| anchor.innerText = ''; |
| anchor.href = ''; |
| var progress = document.getElementById('progress'); |
| progress.innerText = ''; |
| var input_url = document.getElementById('url'); |
| var url = input_url.value; |
| if (!url) |
| return false; |
| if (!url.indexOf('http') == 0) |
| url = 'http://' + url; |
| // Set the input url to the url we're actually prerendering. |
| input_url.value = url; |
| add_link(url, 'prerender'); |
| |
| window.setTimeout(function() { |
| console.log('loaded'); |
| set_progress("Click to navigate to prerendered page: "); |
| anchor.href = url; |
| anchor.innerText = url; |
| }, 0); |
| console.log('prerendering: ' + url); |
| return false; |
| } |
| |
| function set_progress(progress_text) { |
| var progress = document.getElementById('progress'); |
| progress.innerText = progress_text; |
| } |