Fixes toc alignment on search and adds highlight library

Signed-off-by: Christopher Rogers <chrissrogers@gmail.com>

source/javascripts/app/search.js

 (function (global) {
 
+  var $global = $(global);
   var index = lunr(function () {
     this.ref('id');
     this.field('title', { boost: 10 });
@@ -29,17 +30,26 @@
   }
 
   function bind () {
-    $('#input-search').on('keyup', function () {
-      if (this.value) {
-        var items = index.search(this.value);
-        $('section, #toc .tocify-item').hide();
-        items.forEach(function (item) {
-          $('#section-' + item.ref + ', .tocify-item[data-unique=' + item.ref).show();
-        });
-      } else {
-        $('section, #toc .tocify-item').show();
-      }
-    });
+    $('#input-search').on('keyup', search);
+  }
+
+  function search () {
+    var sections = $('section, #toc .tocify-header');
+
+    if (this.value) {
+      var items = index.search(this.value);
+      sections.hide();
+      items.forEach(function (item) {
+        $('#section-' + item.ref).show();
+        $('.tocify-item[data-unique=' + item.ref + ']').closest('.tocify-header').show();
+      });
+    } else {
+      sections.show();
+    }
+
+    // HACK trigger tocify height recalculation
+    $global.triggerHandler('scroll.tocify');
+    $global.triggerHandler('resize');
   }
 
 })(window);

source/javascripts/app/toc.js

-$(function() {
-  var toc = $("#toc").tocify({
-    selectors: "h1,h2",
-    extendPage: false,
-    theme: "none",
-    smoothScroll: false,
-    showEffectSpeed: 0,
-    hideEffectSpeed: 180,
-    ignoreSelector: ".toc-ignore",
-    hashGenerator: 'pretty',
-    highlightOffset: 60,
-    scrollTo: -2,
-    scrollHistory: true,
-    hashGenerator: function(text, element) {
-      return element[0].getAttribute('id');
-    }
-  }).data("toc-tocify");
+(function (global) {
+
+  var toc;
+
+  global.toc = toc;
+
+  $(toc);
+  $(animate);
+
+  function toc () {
+    toc = $("#toc").tocify({
+      selectors: 'h1, h2',
+      extendPage: false,
+      theme: 'none',
+      smoothScroll: false,
+      showEffectSpeed: 0,
+      hideEffectSpeed: 180,
+      ignoreSelector: '.toc-ignore',
+      highlightOffset: 60,
+      scrollTo: -2,
+      scrollHistory: true,
+      hashGenerator: function (text, element) {
+        return element.prop('id');
+      }
+    }).data('toc-tocify');
+  }
 
   // Hack to make already open sections to start opened,
   // instead of displaying an ugly animation
-  setTimeout(function() {
-    toc.setOption("showEffectSpeed", 180);
-  }, 50);
-});
+  function animate () {
+    setTimeout(function() {
+      toc.setOption('showEffectSpeed', 180);
+    }, 50);
+  }
+
+})(window);
+

source/javascripts/lib/jquery.highlight.js

+/*
+ * jQuery Highlight plugin
+ *
+ * Based on highlight v3 by Johann Burkard
+ * http://johannburkard.de/blog/programming/javascript/highlight-javascript-text-higlighting-jquery-plugin.html
+ *
+ * Code a little bit refactored and cleaned (in my humble opinion).
+ * Most important changes:
+ *  - has an option to highlight only entire words (wordsOnly - false by default),
+ *  - has an option to be case sensitive (caseSensitive - false by default)
+ *  - highlight element tag and class names can be specified in options
+ *
+ * Usage:
+ *   // wrap every occurrance of text 'lorem' in content
+ *   // with <span class='highlight'> (default options)
+ *   $('#content').highlight('lorem');
+ *
+ *   // search for and highlight more terms at once
+ *   // so you can save some time on traversing DOM
+ *   $('#content').highlight(['lorem', 'ipsum']);
+ *   $('#content').highlight('lorem ipsum');
+ *
+ *   // search only for entire word 'lorem'
+ *   $('#content').highlight('lorem', { wordsOnly: true });
+ *
+ *   // don't ignore case during search of term 'lorem'
+ *   $('#content').highlight('lorem', { caseSensitive: true });
+ *
+ *   // wrap every occurrance of term 'ipsum' in content
+ *   // with <em class='important'>
+ *   $('#content').highlight('ipsum', { element: 'em', className: 'important' });
+ *
+ *   // remove default highlight
+ *   $('#content').unhighlight();
+ *
+ *   // remove custom highlight
+ *   $('#content').unhighlight({ element: 'em', className: 'important' });
+ *
+ *
+ * Copyright (c) 2009 Bartek Szopka
+ *
+ * Licensed under MIT license.
+ *
+ */
+
+jQuery.extend({
+    highlight: function (node, re, nodeName, className) {
+        if (node.nodeType === 3) {
+            var match = node.data.match(re);
+            if (match) {
+                var highlight = document.createElement(nodeName || 'span');
+                highlight.className = className || 'highlight';
+                var wordNode = node.splitText(match.index);
+                wordNode.splitText(match[0].length);
+                var wordClone = wordNode.cloneNode(true);
+                highlight.appendChild(wordClone);
+                wordNode.parentNode.replaceChild(highlight, wordNode);
+                return 1; //skip added node in parent
+            }
+        } else if ((node.nodeType === 1 && node.childNodes) && // only element nodes that have children
+                !/(script|style)/i.test(node.tagName) && // ignore script and style nodes
+                !(node.tagName === nodeName.toUpperCase() && node.className === className)) { // skip if already highlighted
+            for (var i = 0; i < node.childNodes.length; i++) {
+                i += jQuery.highlight(node.childNodes[i], re, nodeName, className);
+            }
+        }
+        return 0;
+    }
+});
+
+jQuery.fn.unhighlight = function (options) {
+    var settings = { className: 'highlight', element: 'span' };
+    jQuery.extend(settings, options);
+
+    return this.find(settings.element + "." + settings.className).each(function () {
+        var parent = this.parentNode;
+        parent.replaceChild(this.firstChild, this);
+        parent.normalize();
+    }).end();
+};
+
+jQuery.fn.highlight = function (words, options) {
+    var settings = { className: 'highlight', element: 'span', caseSensitive: false, wordsOnly: false };
+    jQuery.extend(settings, options);
+    
+    if (words.constructor === String) {
+        words = [words];
+    }
+    words = jQuery.grep(words, function(word, i){
+      return word != '';
+    });
+    words = jQuery.map(words, function(word, i) {
+      return word.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
+    });
+    if (words.length == 0) { return this; };
+
+    var flag = settings.caseSensitive ? "" : "i";
+    var pattern = "(" + words.join("|") + ")";
+    if (settings.wordsOnly) {
+        pattern = "\\b" + pattern + "\\b";
+    }
+    var re = new RegExp(pattern, flag);
+    
+    return this.each(function () {
+        jQuery.highlight(this, re, settings.element, settings.className);
+    });
+};
+

source/stylesheets/screen.css.scss

@@ -35,6 +35,10 @@ html, body {
   background-color: $main-bg;
 }
 
+.highlight {
+  background-color: #FFFF88;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 // TABLE OF CONTENTS
 ////////////////////////////////////////////////////////////////////////////////