1 // Copyright 2014 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 function addToPage(html) { 6 var div = document.createElement('div'); 7 div.innerHTML = html; 8 document.getElementById('content').appendChild(div); 9 } 10 11 function showLoadingIndicator(isLastPage) { 12 document.getElementById('loadingIndicator').className = 13 isLastPage ? 'hidden' : 'visible'; 14 updateLoadingIndicator(isLastPage); 15 } 16 17 // Maps JS Font Family to CSS class and then changes body class name. 18 // CSS classes must agree with distilledpage.css. 19 function useFontFamily(fontFamily) { 20 var cssClass; 21 if (fontFamily == "serif") { 22 cssClass = "serif"; 23 } else if (fontFamily == "monospace") { 24 cssClass = "monospace"; 25 } else { 26 cssClass = "sans-serif"; 27 } 28 // Relies on the classname order of the body being Theme class, then Font 29 // Family class. 30 var themeClass = document.body.className.split(" ")[0]; 31 document.body.className = themeClass + " " + cssClass; 32 } 33 34 // Maps JS theme to CSS class and then changes body class name. 35 // CSS classes must agree with distilledpage.css. 36 function useTheme(theme) { 37 var cssClass; 38 if (theme == "sepia") { 39 cssClass = "sepia"; 40 } else if (theme == "dark") { 41 cssClass = "dark"; 42 } else { 43 cssClass = "light"; 44 } 45 // Relies on the classname order of the body being Theme class, then Font 46 // Family class. 47 var fontFamilyClass = document.body.className.split(" ")[1]; 48 document.body.className = cssClass + " " + fontFamilyClass; 49 } 50 51 var updateLoadingIndicator = function() { 52 var colors = ["red", "yellow", "green", "blue"]; 53 return function(isLastPage) { 54 if (!isLastPage && typeof this.colorShuffle == "undefined") { 55 var loader = document.getElementById("loader"); 56 if (loader) { 57 var colorIndex = -1; 58 this.colorShuffle = setInterval(function() { 59 colorIndex = (colorIndex + 1) % colors.length; 60 loader.className = colors[colorIndex]; 61 }, 600); 62 } 63 } else if (isLastPage && typeof this.colorShuffle != "undefined") { 64 clearInterval(this.colorShuffle); 65 } 66 }; 67 }(); 68 69 // Add a listener to the "View Original" link to report opt-outs. 70 document.getElementById('showOriginal').addEventListener('click', function(e) { 71 var img = document.createElement('img'); 72 img.src = "/vieworiginal"; 73 img.style.display = "none"; 74 document.body.appendChild(img); 75 }, true); 76 77
