update tinycon to latest (#4850)

public/vendor/tinycon/tinycon.js

@@ -1,9 +1,9 @@
 /*!
  * Tinycon - A small library for manipulating the Favicon
  * Tom Moor, http://tommoor.com
- * Copyright (c) 2012 Tom Moor
+ * Copyright (c) 2015 Tom Moor
- * MIT Licensed
+ * @license MIT Licensed
- * @version 0.6.1
+ * @version 0.6.4
  */
 
 (function(){
@@ -11,7 +11,6 @@
   var Tinycon = {};
   var currentFavicon = null;
   var originalFavicon = null;
-	var originalTitle = document.title;
   var faviconImage = null;
   var canvas = null;
   var options = {};
@@ -20,8 +19,8 @@
   var defaults = {
     width: 7,
     height: 9,
-		font: 9 * r + 'px arial',
+    font: 10 * r + 'px arial',
-		colour: '#ffffff',
+    color: '#ffffff',
     background: '#F03D25',
     fallback: true,
     crossOrigin: true,
@@ -37,7 +36,7 @@
   }());
 
   var browser = {
-		ie: ua('msie'),
+    ie: ua('trident'),
     chrome: ua('chrome'),
     webkit: ua('chrome') || ua('safari'),
     safari: ua('safari') && !ua('chrome'),
@@ -50,7 +49,7 @@
     var links = document.getElementsByTagName('link');
 
     for(var i=0, len=links.length; i < len; i++) {
-			if ((links[i].getAttribute('rel') || '').match(/\bicon\b/)) {
+      if ((links[i].getAttribute('rel') || '').match(/\bicon\b/i)) {
         return links[i];
       }
     }
@@ -65,7 +64,7 @@
 
     for(var i=0, len=links.length; i < len; i++) {
       var exists = (typeof(links[i]) !== 'undefined');
-			if (exists && (links[i].getAttribute('rel') || '').match(/\bicon\b/)) {
+      if (exists && (links[i].getAttribute('rel') || '').match(/\bicon\b/i)) {
         head.removeChild(links[i]);
       }
     }
@@ -75,7 +74,10 @@
 
     if (!originalFavicon || !currentFavicon) {
       var tag = getFaviconTag();
-			originalFavicon = currentFavicon = tag ? tag.getAttribute('href') : '/favicon.ico';
+      currentFavicon = tag ? tag.getAttribute('href') : '/favicon.ico';
+      if (!originalFavicon) {
+        originalFavicon = currentFavicon;
+      }
     }
 
     return currentFavicon;
@@ -93,6 +95,7 @@
   };
 
   var setFaviconTag = function(url){
+    if(url){
       removeFaviconTag();
 
       var link = document.createElement('link');
@@ -100,13 +103,14 @@
       link.rel = 'icon';
       link.href = url;
       document.getElementsByTagName('head')[0].appendChild(link);
+    }
   };
 
   var log = function(message){
     if (window.console) window.console.log(message);
   };
 
-	var drawFavicon = function(label, colour) {
+  var drawFavicon = function(label, color) {
 
     // fallback to updating the browser title if unsupported
     if (!getCanvas().getContext || browser.ie || browser.safari || options.fallback === 'force') {
@@ -114,7 +118,7 @@
     }
 
     var context = getCanvas().getContext("2d");
-		var colour = colour || '#000000';
+    var color = color || '#000000';
     var src = getCurrentFavicon();
 
     faviconImage = document.createElement('img');
@@ -127,7 +131,7 @@
       context.drawImage(faviconImage, 0, 0, faviconImage.width, faviconImage.height, 0, 0, size, size);
 
       // draw bubble over the top
-			if ((label + '').length > 0) drawBubble(context, label, colour);
+      if ((label + '').length > 0) drawBubble(context, label, color);
 
       // refresh tag in page
       refreshFavicon();
@@ -145,6 +149,14 @@
   var updateTitle = function(label) {
 
     if (options.fallback) {
+      // Grab the current title that we can prefix with the label
+      var originalTitle = document.title;
+
+      // Strip out the old label if there is one
+      if (originalTitle[0] === '(') {
+        originalTitle = originalTitle.slice(originalTitle.indexOf(' '));
+      }
+
       if ((label + '').length > 0) {
         document.title = '(' + label + ') ' + originalTitle;
       } else {
@@ -153,7 +165,7 @@
     }
   };
 
-	var drawBubble = function(context, label, colour) {
+  var drawBubble = function(context, label, color) {
 
     // automatic abbreviation for long (>2 digits) numbers
     if (typeof label == 'number' && label > 99 && options.abbreviate) {
@@ -199,7 +211,7 @@
     context.stroke();
 
     // label
-		context.fillStyle = options.colour;
+    context.fillStyle = options.color;
     context.textAlign = "right";
     context.textBaseline = "top";
 
@@ -240,6 +252,11 @@
   Tinycon.setOptions = function(custom){
     options = {};
 
+    // account for deprecated UK English spelling
+    if (custom.colour) {
+      custom.color = custom.colour;
+    }
+
     for(var key in defaults){
       options[key] = custom.hasOwnProperty(key) ? custom[key] : defaults[key];
     }
@@ -252,16 +269,19 @@
     return this;
   };
 
-	Tinycon.setBubble = function(label, colour) {
+  Tinycon.setBubble = function(label, color) {
     label = label || '';
-		drawFavicon(label, colour);
+    drawFavicon(label, color);
     return this;
   };
 
   Tinycon.reset = function(){
+    currentFavicon = originalFavicon;
     setFaviconTag(originalFavicon);
   };
 
   Tinycon.setOptions(defaults);
+
   window.Tinycon = Tinycon;
+
 })();