jquery.mentionsInput wip, almost done

config/assets.yml

@@ -31,6 +31,10 @@ javascripts:
     - public/javascripts/vendor/jquery.expander.js
     - public/javascripts/vendor/timeago.js
     - public/javascripts/vendor/facebox.js
+    - public/javascripts/vendor/underscore.js
+    - public/javascripts/vendor/jquery.events.input.js
+    - public/javascripts/vendor/jquery.elastic.js
+    - public/javascripts/vendor/jquery.mentionsInput.js
     - public/javascripts/jquery.infinitescroll-custom.js
     - public/javascripts/jquery.autocomplete-custom.js
     - public/javascripts/jquery.infieldlabel-custom.js
@@ -47,6 +51,7 @@ javascripts:
     - public/javascripts/contact-edit.js
     - public/javascripts/contact-list.js
     - public/javascripts/aspect-sorting.js
+    - public/javascripts/mentions.js
 
     - public/javascripts/vendor/bootstrap/bootstrap-twipsy.js
     - public/javascripts/vendor/bootstrap/bootstrap-popover.js
@@ -87,6 +92,7 @@ stylesheets:
     - public/stylesheets/ui.css
     - public/stylesheets/lightbox.css
     - public/stylesheets/autocomplete.css
+    - public/stylesheets/mentions.css
     - public/stylesheets/tags.css
     - public/stylesheets/hovercard.css
     - public/stylesheets/vendor/facebox.css

public/javascripts/mentions.js

@@ -0,0 +1,24 @@
+var Mentions = {
+  initialize: function(mentionsInput) {
+    Mentions.fetchContacts(function(data) {
+      Mentions.contacts = data;
+      mentionsInput.mentionsInput(Mentions.options);
+    });
+  },
+
+  fetchContacts: function(callback) {
+    $.getJSON($(".selected_contacts_link").attr("href"), callback);
+  },
+
+  options: {
+    onDataRequest: function(mode, query, callback) {
+      var filteredResults = _.filter(Mentions.contacts, function(item) { return item.name.toLowerCase().indexOf(query.toLowerCase()) > -1 });
+
+      callback.call(this, filteredResults);
+    },
+
+    templates: {
+      mentionItemSyntax: _.template("@{<%= mention.name %> ; <%= mention.handle %>}")
+    }
+  }
+};

public/javascripts/publisher.js

@@ -40,224 +40,6 @@ var Publisher = {
     return Publisher.cachedSubmit;
   },
 
-  autocompletion: {
-    options : function(){return {
-      minChars : 1,
-      max : 5,
-      onSelect : Publisher.autocompletion.onSelect,
-      searchTermFromValue: Publisher.autocompletion.searchTermFromValue,
-      scroll : false,
-      formatItem: function(row, i, max) {
-          return "<img src='"+ row.avatar +"' class='avatar'/>" + row.name;
-      },
-      formatMatch: function(row, i, max) {
-          return row.name;
-      },
-      formatResult: function(row) {
-          return row.name;
-      },
-      disableRightAndLeft : true
-    };},
-    hiddenMentionFromPerson : function(personData){
-      return "@{" + personData.name + "; " + personData.handle + "}";
-    },
-
-    onSelect :  function(visibleInput, data, formatted) {
-      var visibleCursorIndex = visibleInput[0].selectionStart;
-      var visibleLoc = Publisher.autocompletion.addMentionToInput(visibleInput, visibleCursorIndex, formatted);
-      $.Autocompleter.Selection(visibleInput[0], visibleLoc[1], visibleLoc[1]);
-
-      var mentionString = Publisher.autocompletion.hiddenMentionFromPerson(data);
-      var mention = { visibleStart: visibleLoc[0],
-                      visibleEnd  : visibleLoc[1],
-                      mentionString : mentionString
-                    };
-      Publisher.autocompletion.mentionList.push(mention);
-      Publisher.oldInputContent = visibleInput.val();
-      Publisher.hiddenInput().val(Publisher.autocompletion.mentionList.generateHiddenInput(visibleInput.val()));
-    },
-
-    mentionList : {
-      mentions : [],
-      sortedMentions : function(){
-        return this.mentions.sort(function(m1, m2){
-          if(m1.visibleStart > m2.visibleStart){
-            return -1;
-          } else if(m1.visibleStart < m2.visibleStart){
-            return 1;
-          } else {
-            return 0;
-          }
-        });
-      },
-      push : function(mention){
-        this.mentions.push(mention);
-      },
-      generateHiddenInput : function(visibleString){
-        var resultString = visibleString;
-        for(var i in this.sortedMentions()){
-          var mention = this.mentions[i];
-          var start = resultString.slice(0, mention.visibleStart);
-          var insertion = mention.mentionString;
-          var end = resultString.slice(mention.visibleEnd);
-
-          resultString = start + insertion + end;
-        }
-        return resultString;
-      },
-
-      insertionAt : function(insertionStartIndex, selectionEnd, keyCode){
-        if(insertionStartIndex != selectionEnd){
-          this.selectionDeleted(insertionStartIndex, selectionEnd);
-        }
-        this.updateMentionLocations(insertionStartIndex, 1);
-        this.destroyMentionAt(insertionStartIndex);
-      },
-      deletionAt : function(selectionStart, selectionEnd, keyCode){
-        if(selectionStart != selectionEnd){
-          this.selectionDeleted(selectionStart, selectionEnd);
-          return;
-        }
-
-        var effectiveCursorIndex;
-        if(keyCode == KEYCODES.DEL){
-          effectiveCursorIndex = selectionStart;
-        }else{
-          effectiveCursorIndex = selectionStart - 1;
-        }
-        this.updateMentionLocations(effectiveCursorIndex, -1);
-        this.destroyMentionAt(effectiveCursorIndex);
-      },
-      selectionDeleted : function(selectionStart, selectionEnd){
-        Publisher.autocompletion.mentionList.destroyMentionsWithin(selectionStart, selectionEnd);
-        Publisher.autocompletion.mentionList.updateMentionLocations(selectionStart, selectionStart - selectionEnd);
-      },
-      destroyMentionsWithin : function(start, end){
-        for (var i = this.mentions.length - 1; i >= 0; i--){
-          var mention = this.mentions[i];
-          if(start < mention.visibleEnd && end >= mention.visibleStart){
-            this.mentions.splice(i, 1);
-          }
-        }
-      },
-      clear: function(){
-        this.mentions = [];
-      },
-      destroyMentionAt : function(effectiveCursorIndex){
-
-        var mentionIndex = this.mentionAt(effectiveCursorIndex);
-        var mention = this.mentions[mentionIndex];
-        if(mention){
-          this.mentions.splice(mentionIndex, 1);
-        }
-      },
-      updateMentionLocations : function(effectiveCursorIndex, offset){
-        var changedMentions = this.mentionsAfter(effectiveCursorIndex);
-        for(var i in changedMentions){
-          var mention = changedMentions[i];
-          mention.visibleStart += offset;
-          mention.visibleEnd += offset;
-        }
-      },
-      mentionAt : function(visibleCursorIndex){
-        for(var i in this.mentions){
-          var mention = this.mentions[i];
-          if(visibleCursorIndex > mention.visibleStart && visibleCursorIndex < mention.visibleEnd){
-            return i;
-          }
-        }
-        return false;
-      },
-      mentionsAfter : function(visibleCursorIndex){
-        var resultMentions = [];
-        for(var i in this.mentions){
-          var mention = this.mentions[i];
-          if(visibleCursorIndex <= mention.visibleStart){
-            resultMentions.push(mention);
-          }
-        }
-        return resultMentions;
-      }
-    },
-    repopulateHiddenInput: function(){
-      var newHiddenVal = Publisher.autocompletion.mentionList.generateHiddenInput(Publisher.input().val());
-      if(newHiddenVal != Publisher.hiddenInput().val()){
-        Publisher.hiddenInput().val(newHiddenVal);
-      }
-    },
-
-    keyUpHandler : function(event){
-      Publisher.autocompletion.repopulateHiddenInput();
-      Publisher.determineSubmitAvailability();
-    },
-
-    keyDownHandler : function(event){
-      var input = Publisher.input();
-      var selectionStart = input[0].selectionStart;
-      var selectionEnd = input[0].selectionEnd;
-      var isDeletion = (event.keyCode == KEYCODES.DEL && selectionStart < input.val().length) || (event.keyCode == KEYCODES.BACKSPACE && (selectionStart > 0 || selectionStart != selectionEnd));
-      var isInsertion = (KEYCODES.isInsertion(event.keyCode) && event.keyCode != KEYCODES.RETURN );
-
-      if(isDeletion){
-        Publisher.autocompletion.mentionList.deletionAt(selectionStart, selectionEnd, event.keyCode);
-      }else if(isInsertion){
-        Publisher.autocompletion.mentionList.insertionAt(selectionStart, selectionEnd, event.keyCode);
-      }
-    },
-
-    addMentionToInput: function(input, cursorIndex, formatted){
-      var inputContent = input.val();
-
-      var stringLoc = Publisher.autocompletion.findStringToReplace(inputContent, cursorIndex);
-
-      var stringStart = inputContent.slice(0, stringLoc[0]);
-      var stringEnd = inputContent.slice(stringLoc[1]);
-
-      input.val(stringStart + formatted + stringEnd);
-      var offset = formatted.length - (stringLoc[1] - stringLoc[0]);
-      Publisher.autocompletion.mentionList.updateMentionLocations(stringStart.length, offset);
-      return [stringStart.length, stringStart.length + formatted.length];
-    },
-
-    findStringToReplace: function(value, cursorIndex){
-      var atLocation = value.lastIndexOf('@', cursorIndex);
-      if(atLocation == -1){return [0,0];}
-      var nextAt = cursorIndex;
-
-      if(nextAt == -1){nextAt = value.length;}
-      return [atLocation, nextAt];
-
-    },
-
-    searchTermFromValue: function(value, cursorIndex) {
-      var stringLoc = Publisher.autocompletion.findStringToReplace(value, cursorIndex);
-      if(stringLoc[0] <= 2){
-        stringLoc[0] = 0;
-      }else{
-        stringLoc[0] -= 2;
-      }
-
-      var relevantString = value.slice(stringLoc[0], stringLoc[1]).replace(/\s+$/,"");
-
-      var matches = relevantString.match(/(^|\s)@(.+)/);
-      if(matches){
-        return matches[2];
-      }else{
-        return '';
-      }
-    },
-    initialize: function(){
-      $.getJSON($("#publisher .selected_contacts_link").attr("href"), undefined ,
-        function(data){
-          Publisher.input().autocomplete(data,
-            Publisher.autocompletion.options());
-          Publisher.input().result(Publisher.autocompletion.selectItemCallback);
-          Publisher.oldInputContent = Publisher.input().val();
-        }
-      );
-    }
-  },
-
   determineSubmitAvailability: function(){
     var onlyWhitespaces = ($.trim(Publisher.input().val()) === ''),
         isSubmitDisabled = Publisher.submit().attr('disabled'),
@@ -271,7 +53,10 @@ var Publisher = {
   },
 
   clear: function(){
-    this.autocompletion.mentionList.clear();
+    $("#photodropzone").find('li').remove();
+    $("#publisher textarea").removeClass("with_attachments")
+      .css('paddingBottom', '')
+      .mentionsInput("reset");
   },
 
   bindServiceIcons: function(){
@@ -385,10 +170,14 @@ var Publisher = {
       alert(Diaspora.I18n.t('publisher.at_least_one_aspect'));
       return false;
     }
+
+    Publisher.input().mentionsInput("val", function(value) {
+      Publisher.hiddenInput().val(value);
+    });
   },
   onSubmit: function(data, json, xhr){
     $("#photodropzone").find('li').remove();
-    $("#publisher textarea").removeClass("with_attachments").css('paddingBottom', '');
+    Publisher.input().removeClass("with_attachments").css('paddingBottom', '');
   },
   onFailure: function(data, json, xhr){
     json = $.parseJSON(json.responseText);
@@ -473,16 +262,25 @@ var Publisher = {
     Publisher.bindServiceIcons();
     Publisher.bindAspectToggles();
 
-    Publisher.autocompletion.initialize();
+    /* close text area */
+    Publisher.form().delegate("#hide_publisher", "click", function(){
+      $.each(Publisher.form().find("textarea"), function(idx, element){
+        $(element).val("");
+      });
+      Publisher.close();
+    });
+
+    Mentions.initialize(Publisher.input());
 
     if(Publisher.hiddenInput().val() === "") {
       Publisher.hiddenInput().val(Publisher.input().val());
     }
+
     Publisher.input().autoResize({'extraSpace' : 10});
-    Publisher.input().keydown(Publisher.autocompletion.keyDownHandler);
-    Publisher.input().keyup(Publisher.autocompletion.keyUpHandler);
-    Publisher.input().mouseup(Publisher.autocompletion.keyUpHandler);
-    //Publisher.bindAjax();
+
+    Publisher.form().find("textarea").bind("focus", function(evt) {
+      Publisher.open();
+    });
   }
 };
 

public/javascripts/vendor/jquery.elastic.js

@@ -0,0 +1,151 @@
+/**
+ *    @name                            Elastic
+ *    @descripton                        Elastic is jQuery plugin that grow and shrink your textareas automatically
+ *    @version                        1.6.10
+ *    @requires                        jQuery 1.2.6+
+ *
+ *    @author                            Jan Jarfalk
+ *    @author-email                    jan.jarfalk@unwrongest.com
+ *    @author-website                    http://www.unwrongest.com
+ *
+ *    @licence                        MIT License - http://www.opensource.org/licenses/mit-license.php
+ */
+
+  (function(jQuery) {
+  jQuery.fn.extend({
+    elastic: function() {
+
+      //	We will create a div clone of the textarea
+      //	by copying these attributes from the textarea to the div.
+      var mimics = [
+        'paddingTop',
+        'paddingRight',
+        'paddingBottom',
+        'paddingLeft',
+        'marginTop',
+        'marginRight',
+        'marginBottom',
+        'marginLeft',
+        'fontSize',
+        'lineHeight',
+        'fontFamily',
+        'width',
+        'fontWeight',
+        'border-top-width',
+        'border-right-width',
+        'border-bottom-width',
+        'border-left-width',
+        'borderTopStyle',
+        'borderTopColor',
+        'borderRightStyle',
+        'borderRightColor',
+        'borderBottomStyle',
+        'borderBottomColor',
+        'borderLeftStyle',
+        'borderLeftColor',
+        'box-sizing',
+        '-moz-box-sizing',
+        '-webkit-box-sizing'
+      ];
+
+      return this.each(function() {
+
+        // Elastic only works on textareas
+        if (this.type !== 'textarea') {
+          return false;
+        }
+
+        var $textarea = jQuery(this),
+          $twin = jQuery('<div />').css({'position': 'absolute','display':'none','word-wrap':'break-word'}),
+          lineHeight = parseInt($textarea.css('line-height'), 10) || parseInt($textarea.css('font-size'), '10'),
+          minheight = parseInt($textarea.css('height'), 10) || lineHeight * 3,
+          maxheight = parseInt($textarea.css('max-height'), 10) || Number.MAX_VALUE,
+          goalheight = 0;
+
+        // Opera returns max-height of -1 if not set
+        if (maxheight < 0) {
+          maxheight = Number.MAX_VALUE;
+        }
+
+        // Append the twin to the DOM
+        // We are going to meassure the height of this, not the textarea.
+        $twin.appendTo($textarea.parent());
+
+        // Copy the essential styles (mimics) from the textarea to the twin
+        var i = mimics.length;
+        while (i--) {
+
+          if (mimics[i].toString() === 'width' && $textarea.css(mimics[i].toString()) === '0px') {
+            setTwinWidth();
+          } else {
+            $twin.css(mimics[i].toString(), $textarea.css(mimics[i].toString()));
+          }
+        }
+
+        update(true);
+
+        // Updates the width of the twin. (solution for textareas with widths in percent)
+        function setTwinWidth() {
+          curatedWidth = Math.floor(parseInt($textarea.width(), 10));
+          if ($twin.width() !== curatedWidth) {
+            $twin.css({'width': curatedWidth + 'px'});
+
+            // Update height of textarea
+            update(true);
+          }
+        }
+
+        // Sets a given height and overflow state on the textarea
+        function setHeightAndOverflow(height, overflow) {
+
+          var curratedHeight = Math.floor(parseInt(height, 10));
+          if ($textarea.height() !== curratedHeight) {
+            $textarea.css({'height': curratedHeight + 'px','overflow':overflow});
+
+            // Fire the custom event resize
+            $textarea.triggerHandler('resize');
+
+          }
+        }
+
+        // This function will update the height of the textarea if necessary
+        function update(forced) {
+
+          // Get curated content from the textarea.
+          var textareaContent = $textarea.val().replace(/&/g, '&amp;').replace(/ {2}/g, '&nbsp;').replace(/<|>/g, '&gt;').replace(/\n/g, '<br />');
+
+          // Compare curated content with curated twin.
+          var twinContent = $twin.html().replace(/<br>/ig, '<br />');
+
+          if (forced || textareaContent + '&nbsp;' !== twinContent) {
+
+            // Add an extra white space so new rows are added when you are at the end of a row.
+            $twin.html(textareaContent + '&nbsp;');
+
+            // Change textarea height if twin plus the height of one line differs more than 3 pixel from textarea height
+            if (Math.abs($twin.outerHeight() + lineHeight - $textarea.outerHeight()) > 3) {
+
+              var goalheight = $twin.outerHeight();
+              if (goalheight >= maxheight) {
+                setHeightAndOverflow(maxheight, 'auto');
+              } else if (goalheight <= minheight) {
+                setHeightAndOverflow(minheight, 'hidden');
+              } else {
+                setHeightAndOverflow(goalheight, 'hidden');
+              }
+
+            }
+
+          }
+
+        }
+
+        // Update textarea size on keyup, change, cut and paste
+        $textarea.bind('input', update);
+        $textarea.bind('change', update);
+        $(window).bind('resize', setTwinWidth);
+      });
+
+    }
+  });
+})(jQuery);

public/javascripts/vendor/jquery.events.input.js

@@ -0,0 +1,132 @@
+/*
+    jQuery `input` special event v1.0
+
+    http://whattheheadsaid.com/projects/input-special-event
+
+    (c) 2010-2011 Andy Earnshaw
+    MIT license
+    www.opensource.org/licenses/mit-license.php
+
+    Modified by Kenneth Auchenberg
+    * Disabled usage of onPropertyChange event in IE, since its a bit delayed, if you type really fast.
+*/
+
+(function($) {
+  // Handler for propertychange events only
+  function propHandler() {
+    var $this = $(this);
+    if (window.event.propertyName == "value" && !$this.data("triggering.inputEvent")) {
+      $this.data("triggering.inputEvent", true).trigger("input");
+      window.setTimeout(function () {
+        $this.data("triggering.inputEvent", false);
+      }, 0);
+    }
+  }
+
+  $.event.special.input = {
+    setup: function(data, namespaces) {
+      var timer,
+        // Get a reference to the element
+        elem = this,
+        // Store the current state of the element
+        state = elem.value,
+        // Create a dummy element that we can use for testing event support
+        tester = document.createElement(this.tagName),
+        // Check for native oninput
+        oninput = "oninput" in tester || checkEvent(tester),
+        // Check for onpropertychange
+        onprop = "onpropertychange" in tester,
+        // Generate a random namespace for event bindings
+        ns = "inputEventNS" + ~~(Math.random() * 10000000),
+        // Last resort event names
+        evts = ["focus", "blur", "paste", "cut", "keydown", "drop", ""].join("." + ns + " ");
+
+      function checkState() {
+        var $this = $(elem);
+        if (elem.value != state && !$this.data("triggering.inputEvent")) {
+          state = elem.value;
+
+          $this.data("triggering.inputEvent", true).trigger("input");
+          window.setTimeout(function () {
+            $this.data("triggering.inputEvent", false);
+          }, 0);
+        }
+      }
+
+      // Set up a function to handle the different events that may fire
+      function handler(e) {
+        // When focusing, set a timer that polls for changes to the value
+        if (e.type == "focus") {
+          checkState();
+          clearInterval(timer);
+          timer = window.setInterval(checkState, 250);
+        } else if (e.type == "blur") {
+          // When blurring, cancel the aforeset timer
+          window.clearInterval(timer);
+        } else {
+          // For all other events, queue a timer to check state ASAP
+          window.setTimeout(checkState, 0);
+        }
+      }
+
+      // Bind to native event if available
+      if (oninput) {
+        return false;
+//      } else if (onprop) {
+//        // Else fall back to propertychange if available
+//        $(this).find("input, textarea").andSelf().filter("input, textarea").bind("propertychange." + ns, propHandler);
+      } else {
+        // Else clutch at straws!
+        $(this).find("input, textarea").andSelf().filter("input, textarea").bind(evts, handler);
+      }
+      $(this).data("inputEventHandlerNS", ns);
+    },
+    teardown: function () {
+      var elem = $(this);
+      elem.find("input, textarea").unbind(elem.data("inputEventHandlerNS"));
+      elem.data("inputEventHandlerNS", "");
+    }
+  };
+
+  // Setup our jQuery shorthand method
+  $.fn.input = function (handler) {
+    return handler ? this.bind("input", handler) : this.trigger("input");
+  };
+
+  /*
+   The following function tests the element for oninput support in Firefox.  Many thanks to
+   http://blog.danielfriesen.name/2010/02/16/html5-browser-maze-oninput-support/
+   */
+  function checkEvent(el) {
+    // First check, for if Firefox fixes its issue with el.oninput = function
+    el.setAttribute("oninput", "return");
+    if (typeof el.oninput == "function") {
+      return true;
+    }
+    // Second check, because Firefox doesn't map oninput attribute to oninput property
+    try {
+
+      // "* Note * : Disabled focus and dispatch of keypress event due to conflict with DOMready, which resulted in scrolling down to the bottom of the page, possibly because layout wasn't finished rendering.
+      var e = document.createEvent("KeyboardEvent"),
+        ok = false,
+        tester = function(e) {
+          ok = true;
+          e.preventDefault();
+          e.stopPropagation();
+      };
+
+      // e.initKeyEvent("keypress", true, true, window, false, false, false, false, 0, "e".charCodeAt(0));
+
+      document.body.appendChild(el);
+      el.addEventListener("input", tester, false);
+      // el.focus();
+      // el.dispatchEvent(e);
+      el.removeEventListener("input", tester, false);
+      document.body.removeChild(el);
+      return ok;
+
+    } catch(error) {
+
+    }
+  }
+})(jQuery);

public/javascripts/vendor/jquery.mentionsInput.js

@@ -0,0 +1,386 @@
+/*
+ * Mentions Input
+ * Version 1.0
+ * Written by: Kenneth Auchenberg (Podio)
+ *
+ * Using underscore.js
+ *
+ * License: MIT License - http://www.opensource.org/licenses/mit-license.php
+ */
+
+(function ($, _, undefined) {
+
+  // Settings
+  var KEY = { BACKSPACE : 8, TAB : 9, RETURN : 13, ESC : 27, LEFT : 37, UP : 38, RIGHT : 39, DOWN : 40, COMMA : 188, SPACE : 32, HOME : 36, END : 35 }; // Keys "enum"
+  var defaultSettings = {
+    triggerChar   : '@',
+    onDataRequest : $.noop,
+    minChars      : 2,
+    showAvatars   : true,
+    elastic       : true,
+    classes       : {
+      autoCompleteItemActive : "active"
+    },
+    templates     : {
+      wrapper                    : _.template('<div class="mentions-input-box"></div>'),
+      autocompleteList           : _.template('<div class="mentions-autocomplete-list"></div>'),
+      autocompleteListItem       : _.template('<li data-ref-id="<%= id %>" data-ref-type="<%= type %>" data-display="<%= display %>"><%= content %></li>'),
+      autocompleteListItemAvatar : _.template('<img  src="<%= avatar %>" />'),
+      autocompleteListItemIcon   : _.template('<div class="icon <%= icon %>"></div>'),
+      mentionsOverlay            : _.template('<div class="mentions"><div></div></div>'),
+      mentionItemSyntax          : _.template('@[<%= value %>](<%= type %>:<%= id %>)'),
+      mentionItemHighlight       : _.template('<strong><span><%= value %></span></strong>')
+    }
+  };
+
+  var utils = {
+    htmlEncode       : function (str) {
+      return _.escape(str);
+    },
+    highlightTerm    : function (value, term) {
+      if (!term && !term.length) {
+        return value;
+      }
+      return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<b>$1</b>");
+    },
+    setCaratPosition : function (domNode, caretPos) {
+      if (domNode.createTextRange) {
+        var range = domNode.createTextRange();
+        range.move('character', caretPos);
+        range.select();
+      } else {
+        if (domNode.selectionStart) {
+          domNode.focus();
+          domNode.setSelectionRange(caretPos, caretPos);
+        } else {
+          domNode.focus();
+        }
+      }
+    }
+  };
+
+  var MentionsInput = function (input) {
+    var settings;
+    var elmInputBox, elmInputWrapper, elmAutocompleteList, elmWrapperBox, elmMentionsOverlay, elmActiveAutoCompleteItem;
+    var mentionsCollection = [];
+    var inputBuffer = [];
+    var currentDataQuery;
+
+    function initTextarea() {
+      elmInputBox = $(input);
+
+      if (elmInputBox.attr('data-mentions-input') == 'true') {
+        return;
+      }
+
+      elmInputWrapper = elmInputBox.parent();
+      elmWrapperBox = $(settings.templates.wrapper());
+      elmInputBox.wrapAll(elmWrapperBox);
+      elmWrapperBox = elmInputWrapper.find('> div');
+
+      elmInputBox.attr('data-mentions-input', 'true');
+      elmInputBox.bind('keydown', onInputBoxKeyDown);
+      elmInputBox.bind('keypress', onInputBoxKeyPress);
+      elmInputBox.bind('input', onInputBoxInput);
+      elmInputBox.bind('click', onInputBoxClick);
+
+      if (settings.elastic) {
+        elmInputBox.elastic();
+      }
+    }
+
+    function initAutocomplete() {
+      elmAutocompleteList = $(settings.templates.autocompleteList());
+      elmAutocompleteList.appendTo(elmWrapperBox);
+      elmAutocompleteList.delegate('li', 'click', onAutoCompleteItemClick);
+    }
+
+    function initMentionsOverlay() {
+      elmMentionsOverlay = $(settings.templates.mentionsOverlay());
+      elmMentionsOverlay.prependTo(elmWrapperBox);
+    }
+
+    function updateValues() {
+      var syntaxMessage = getInputBoxValue();
+
+      _.each(mentionsCollection, function (mention) {
+        var textSyntax = settings.templates.mentionItemSyntax({ value : mention.value, type : 'contact', id : mention.id });
+        syntaxMessage = syntaxMessage.replace(mention.value, textSyntax);
+      });
+
+      var mentionText = utils.htmlEncode(syntaxMessage);
+
+      _.each(mentionsCollection, function (mention) {
+        var textSyntax = settings.templates.mentionItemSyntax({ value : utils.htmlEncode(mention.value), type : 'contact', id : mention.id });
+        var textHighlight = settings.templates.mentionItemHighlight({ value : utils.htmlEncode(mention.value) });
+
+        mentionText = mentionText.replace(textSyntax, textHighlight);
+      });
+
+      mentionText = mentionText.replace(/\n/g, '<br />');
+      mentionText = mentionText.replace(/ {2}/g, '&nbsp; ');
+
+      elmInputBox.data('messageText', syntaxMessage);
+      elmMentionsOverlay.find('div').html(mentionText);
+    }
+
+    function resetBuffer() {
+      inputBuffer = [];
+    }
+
+    function updateMentionsCollection() {
+      var inputText = getInputBoxValue();
+
+      mentionsCollection = _.reject(mentionsCollection, function (mention, index) {
+        return !mention.value || inputText.indexOf(mention.value) == -1;
+      });
+      mentionsCollection = _.compact(mentionsCollection);
+    }
+
+    function addMention(value, id, type) {
+      var currentMessage = getInputBoxValue();
+
+      // Using a regex to figure out positions
+      var regex = new RegExp("\\" + settings.triggerChar + currentDataQuery, "gi");
+      regex.exec(currentMessage);
+
+      var startCaretPosition = regex.lastIndex - currentDataQuery.length - 1;
+      var currentCaretPosition = regex.lastIndex;
+
+      var start = currentMessage.substr(0, startCaretPosition);
+      var end = currentMessage.substr(currentCaretPosition, currentMessage.length);
+      var startEndIndex = (start + value).length;
+
+      var updatedMessageText = start + value + end;
+
+      mentionsCollection.push({
+        id    : id,
+        type  : type,
+        value : value
+      });
+
+      // Cleaning before inserting the value, otherwise auto-complete would be triggered with "old" inputbuffer
+      resetBuffer();
+      currentDataQuery = '';
+      hideAutoComplete();
+
+      // Mentions & syntax message
+      elmInputBox.val(updatedMessageText);
+      updateValues();
+
+      // Set correct focus and selection
+      elmInputBox.focus();
+      utils.setCaratPosition(elmInputBox[0], startEndIndex);
+    }
+
+    function getInputBoxValue() {
+      return $.trim(elmInputBox.val());
+    }
+
+    function onAutoCompleteItemClick(e) {
+      var elmTarget = $(this);
+
+      addMention(elmTarget.attr('data-display'), elmTarget.attr('data-ref-id'), elmTarget.attr('data-ref-type'));
+
+      return false;
+    }
+
+    function onInputBoxClick(e) {
+      resetBuffer();
+    }
+
+    function onInputBoxInput(e) {
+      updateValues();
+      updateMentionsCollection();
+      hideAutoComplete();
+
+      var triggerCharIndex = _.lastIndexOf(inputBuffer, settings.triggerChar);
+      if (triggerCharIndex > -1) {
+        currentDataQuery = inputBuffer.slice(triggerCharIndex + 1).join('');
+
+        _.defer(_.bind(doSearch, this, currentDataQuery));
+      }
+    }
+
+    function onInputBoxKeyPress(e) {
+      var typedValue = String.fromCharCode(e.which || e.keyCode);
+      inputBuffer.push(typedValue);
+    }
+
+    function onInputBoxKeyDown(e) {
+
+      // This also matches HOME/END on OSX which is CMD+LEFT, CMD+RIGHT
+      if (e.keyCode == KEY.LEFT || e.keyCode == KEY.RIGHT || e.keyCode == KEY.HOME || e.keyCode == KEY.END) {
+        // Defer execution to ensure carat pos has changed after HOME/END keys
+        _.defer(resetBuffer);
+        return;
+      }
+
+      if (e.keyCode == KEY.BACKSPACE) {
+        inputBuffer = inputBuffer.slice(0, -1 + inputBuffer.length); // Can't use splice, not available in IE
+        return;
+      }
+
+      if (!elmAutocompleteList.is(':visible')) {
+        return true;
+      }
+
+      switch (e.keyCode) {
+        case KEY.UP:
+        case KEY.DOWN:
+          var elmCurrentAutoCompleteItem = null;
+          if (e.keyCode == KEY.DOWN) {
+            if (elmActiveAutoCompleteItem && elmActiveAutoCompleteItem.length) {
+              elmCurrentAutoCompleteItem = elmActiveAutoCompleteItem.next();
+            } else {
+              elmCurrentAutoCompleteItem = elmAutocompleteList.find('li').first();
+            }
+          } else {
+            elmCurrentAutoCompleteItem = $(elmActiveAutoCompleteItem).prev();
+          }
+
+          if (elmCurrentAutoCompleteItem.length) {
+            selectAutoCompleteItem(elmCurrentAutoCompleteItem);
+          }
+
+          return false;
+
+        case KEY.RETURN:
+        case KEY.TAB:
+          if (elmActiveAutoCompleteItem && elmActiveAutoCompleteItem.length) {
+            elmActiveAutoCompleteItem.click();
+            return false;
+          }
+
+          break;
+      }
+
+      return true;
+    }
+
+    function hideAutoComplete() {
+      elmActiveAutoCompleteItem = null;
+      elmAutocompleteList.empty().hide();
+    }
+
+    function selectAutoCompleteItem(elmItem) {
+      elmItem.addClass(settings.classes.autoCompleteItemActive);
+      elmItem.siblings().removeClass(settings.classes.autoCompleteItemActive);
+
+      elmActiveAutoCompleteItem = elmItem;
+    }
+
+    function populateDropdown(query, results) {
+      elmAutocompleteList.show();
+
+      // Filter items that has already been mentioned
+      var mentionValues = _.pluck(mentionsCollection, 'value');
+      results = _.reject(results, function (item) {
+        return _.include(mentionValues, item.name);
+      });
+
+      if (!results.length) {
+        hideAutoComplete();
+        return;
+      }
+
+      elmAutocompleteList.empty();
+      var elmDropDownList = $("<ul>").appendTo(elmAutocompleteList).hide();
+
+      _.each(results, function (item, index) {
+        var elmListItem = $(settings.templates.autocompleteListItem({
+          'id'      : utils.htmlEncode(item.id),
+          'display' : utils.htmlEncode(item.name),
+          'type'    : utils.htmlEncode(item.type),
+          'content' : utils.highlightTerm(utils.htmlEncode((item.name)), query)
+        }));
+
+        if (index === 0) { 
+          selectAutoCompleteItem(elmListItem); 
+        }
+
+        if (settings.showAvatars) {
+          var elmIcon;
+
+          if (item.avatar) {
+            elmIcon = $(settings.templates.autocompleteListItemAvatar({ avatar : item.avatar }));
+          } else {
+            elmIcon = $(settings.templates.autocompleteListItemIcon({ icon : item.icon }));
+          }
+          elmIcon.prependTo(elmListItem);
+        }
+        elmListItem = elmListItem.appendTo(elmDropDownList);
+      });
+
+      elmAutocompleteList.show();
+      elmDropDownList.show();
+    }
+
+    function doSearch(query) {
+      if (query && query.length && query.length >= settings.minChars) {
+        settings.onDataRequest.call(this, 'search', query, function (responseData) {
+          populateDropdown(query, responseData);
+        });
+      }
+    }
+
+    // Public methods
+    return {
+      init : function (options) {
+        settings = options;
+
+        initTextarea();
+        initAutocomplete();
+        initMentionsOverlay();
+      },
+
+      val : function (callback) {
+        if (!_.isFunction(callback)) {
+          return;
+        }
+
+        var value = mentionsCollection.length ? elmInputBox.data('messageText') : getInputBoxValue();
+        callback.call(this, value);
+      },
+
+      reset : function () {
+        elmInputBox.val('');
+        mentionsCollection = [];
+        updateValues();
+      },
+
+      getMentions : function (callback) {
+        if (!_.isFunction(callback)) {
+          return;
+        }
+
+        callback.call(this, mentionsCollection);
+      }
+    };
+  };
+
+  $.fn.mentionsInput = function (method, settings) {
+
+    if (typeof method === 'object' || !method) {
+      settings = $.extend(true, {}, defaultSettings, method);
+    }
+
+    var outerArguments = arguments;
+
+    return this.each(function () {
+      var instance = $.data(this, 'mentionsInput') || $.data(this, 'mentionsInput', new MentionsInput(this));
+
+      if (_.isFunction(instance[method])) {
+        return instance[method].apply(this, Array.prototype.slice.call(outerArguments, 1));
+
+      } else if (typeof method === 'object' || !method) {
+        return instance.init.call(this, settings);
+
+      } else {
+        $.error('Method ' + method + ' does not exist');
+      }
+
+    });
+  };
+
+})(jQuery, _);

public/javascripts/vendor/underscore.js

@@ -1,5 +1,5 @@
-//     Underscore.js 1.2.2
-//     (c) 2011 Jeremy Ashkenas, DocumentCloud Inc.
+//     Underscore.js 1.2.4
+//     (c) 2009-2012 Jeremy Ashkenas, DocumentCloud Inc.
 //     Underscore is freely distributable under the MIT license.
 //     Portions of Underscore are inspired or borrowed from Prototype,
 //     Oliver Steele's Functional, and John Resig's Micro-Templating.
@@ -67,7 +67,7 @@
   }
 
   // Current version.
-  _.VERSION = '1.2.2';
+  _.VERSION = '1.2.4';
 
   // Collection Functions
   // --------------------
@@ -101,13 +101,14 @@
     each(obj, function(value, index, list) {
       results[results.length] = iterator.call(context, value, index, list);
     });
+    if (obj.length === +obj.length) results.length = obj.length;
     return results;
   };
 
   // **Reduce** builds up a single result from a list of values, aka `inject`,
   // or `foldl`. Delegates to **ECMAScript 5**'s native `reduce` if available.
   _.reduce = _.foldl = _.inject = function(obj, iterator, memo, context) {
-    var initial = memo !== void 0;
+    var initial = arguments.length > 2;
     if (obj == null) obj = [];
     if (nativeReduce && obj.reduce === nativeReduce) {
       if (context) iterator = _.bind(iterator, context);
@@ -121,20 +122,22 @@
         memo = iterator.call(context, memo, value, index, list);
       }
     });
-    if (!initial) throw new TypeError("Reduce of empty array with no initial value");
+    if (!initial) throw new TypeError('Reduce of empty array with no initial value');
     return memo;
   };
 
   // The right-associative version of reduce, also known as `foldr`.
   // Delegates to **ECMAScript 5**'s native `reduceRight` if available.
   _.reduceRight = _.foldr = function(obj, iterator, memo, context) {
+    var initial = arguments.length > 2;
     if (obj == null) obj = [];
     if (nativeReduceRight && obj.reduceRight === nativeReduceRight) {
       if (context) iterator = _.bind(iterator, context);
-      return memo !== void 0 ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
+      return initial ? obj.reduceRight(iterator, memo) : obj.reduceRight(iterator);
     }
-    var reversed = (_.isArray(obj) ? obj.slice() : _.toArray(obj)).reverse();
-    return _.reduce(reversed, iterator, memo, context);
+    var reversed = _.toArray(obj).reverse();
+    if (context && !initial) iterator = _.bind(iterator, context);
+    return initial ? _.reduce(reversed, iterator, memo, context) : _.reduce(reversed, iterator);
   };
 
   // Return the first value which passes a truth test. Aliased as `detect`.
@@ -189,7 +192,7 @@
   // Delegates to **ECMAScript 5**'s native `some` if available.
   // Aliased as `any`.
   var any = _.some = _.any = function(obj, iterator, context) {
-    iterator = iterator || _.identity;
+    iterator || (iterator = _.identity);
     var result = false;
     if (obj == null) return result;
     if (nativeSome && obj.some === nativeSome) return obj.some(iterator, context);
@@ -215,7 +218,7 @@
   _.invoke = function(obj, method) {
     var args = slice.call(arguments, 2);
     return _.map(obj, function(value) {
-      return (method.call ? method || value : value[method]).apply(value, args);
+      return (_.isFunction(method) ? method || value : value[method]).apply(value, args);
     });
   };
 
@@ -402,10 +405,11 @@
     });
   };
 
-  // Take the difference between one array and another.
+  // Take the difference between one array and a number of other arrays.
   // Only the elements present in just the first array will remain.
-  _.difference = function(array, other) {
-    return _.filter(array, function(value){ return !_.include(other, value); });
+  _.difference = function(array) {
+    var rest = _.flatten(slice.call(arguments, 1));
+    return _.filter(array, function(value){ return !_.include(rest, value); });
   };
 
   // Zip together multiple lists into a single array -- elements that share
@@ -432,7 +436,7 @@
       return array[i] === item ? i : -1;
     }
     if (nativeIndexOf && array.indexOf === nativeIndexOf) return array.indexOf(item);
-    for (i = 0, l = array.length; i < l; i++) if (array[i] === item) return i;
+    for (i = 0, l = array.length; i < l; i++) if (i in array && array[i] === item) return i;
     return -1;
   };
 
@@ -441,7 +445,7 @@
     if (array == null) return -1;
     if (nativeLastIndexOf && array.lastIndexOf === nativeLastIndexOf) return array.lastIndexOf(item);
     var i = array.length;
-    while (i--) if (array[i] === item) return i;
+    while (i--) if (i in array && array[i] === item) return i;
     return -1;
   };
 
@@ -579,7 +583,7 @@
   // conditionally execute the original function.
   _.wrap = function(func, wrapper) {
     return function() {
-      var args = [func].concat(slice.call(arguments));
+      var args = [func].concat(slice.call(arguments, 0));
       return wrapper.apply(this, args);
     };
   };
@@ -587,9 +591,9 @@
   // Returns a function that is the composition of a list of functions, each
   // consuming the return value of the function that follows.
   _.compose = function() {
-    var funcs = slice.call(arguments);
+    var funcs = arguments;
     return function() {
-      var args = slice.call(arguments);
+      var args = arguments;
       for (var i = funcs.length - 1; i >= 0; i--) {
         args = [funcs[i].apply(this, args)];
       }
@@ -677,8 +681,8 @@
     if (a._chain) a = a._wrapped;
     if (b._chain) b = b._wrapped;
     // Invoke a custom `isEqual` method if one is provided.
-    if (_.isFunction(a.isEqual)) return a.isEqual(b);
-    if (_.isFunction(b.isEqual)) return b.isEqual(a);
+    if (a.isEqual && _.isFunction(a.isEqual)) return a.isEqual(b);
+    if (b.isEqual && _.isFunction(b.isEqual)) return b.isEqual(a);
     // Compare `[[Class]]` names.
     var className = toString.call(a);
     if (className != toString.call(b)) return false;
@@ -687,13 +691,11 @@
       case '[object String]':
         // Primitives and their corresponding object wrappers are equivalent; thus, `"5"` is
         // equivalent to `new String("5")`.
-        return String(a) == String(b);
+        return a == String(b);
       case '[object Number]':
-        a = +a;
-        b = +b;
         // `NaN`s are equivalent, but non-reflexive. An `egal` comparison is performed for
         // other numeric values.
-        return a != a ? b != b : (a == 0 ? 1 / a == 1 / b : a == b);
+        return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
       case '[object Date]':
       case '[object Boolean]':
         // Coerce dates and booleans to numeric primitive values. Dates are compared by their
@@ -733,7 +735,7 @@
       }
     } else {
       // Objects with different constructors are not equivalent.
-      if ("constructor" in a != "constructor" in b || a.constructor != b.constructor) return false;
+      if ('constructor' in a != 'constructor' in b || a.constructor != b.constructor) return false;
       // Deep compare objects.
       for (var key in a) {
         if (hasOwnProperty.call(a, key)) {
@@ -786,11 +788,10 @@
   };
 
   // Is a given variable an arguments object?
-  if (toString.call(arguments) == '[object Arguments]') {
   _.isArguments = function(obj) {
     return toString.call(obj) == '[object Arguments]';
   };
-  } else {
+  if (!_.isArguments(arguments)) {
     _.isArguments = function(obj) {
       return !!(obj && hasOwnProperty.call(obj, 'callee'));
     };
@@ -891,6 +892,11 @@
     escape      : /<%-([\s\S]+?)%>/g
   };
 
+  // When customizing `templateSettings`, if you don't want to define an
+  // interpolation, evaluation or escaping regex, we need one that is
+  // guaranteed not to match.
+  var noMatch = /.^/;
+
   // JavaScript micro-templating, similar to John Resig's implementation.
   // Underscore templating handles arbitrary delimiters, preserves whitespace,
   // and correctly escapes quotes within interpolated code.
@@ -900,22 +906,31 @@
       'with(obj||{}){__p.push(\'' +
       str.replace(/\\/g, '\\\\')
          .replace(/'/g, "\\'")
-         .replace(c.escape, function(match, code) {
+         .replace(c.escape || noMatch, function(match, code) {
            return "',_.escape(" + code.replace(/\\'/g, "'") + "),'";
          })
-         .replace(c.interpolate, function(match, code) {
+         .replace(c.interpolate || noMatch, function(match, code) {
            return "'," + code.replace(/\\'/g, "'") + ",'";
          })
-         .replace(c.evaluate || null, function(match, code) {
+         .replace(c.evaluate || noMatch, function(match, code) {
            return "');" + code.replace(/\\'/g, "'")
-                              .replace(/[\r\n\t]/g, ' ') + ";__p.push('";
+                              .replace(/[\r\n\t]/g, ' ')
+                              .replace(/\\\\/g, '\\') + ";__p.push('";
          })
          .replace(/\r/g, '\\r')
          .replace(/\n/g, '\\n')
          .replace(/\t/g, '\\t')
          + "');}return __p.join('');";
     var func = new Function('obj', '_', tmpl);
-    return data ? func(data, _) : function(data) { return func(data, _) };
+    if (data) return func(data, _);
+    return function(data) {
+      return func.call(this, data, _);
+    };
+  };
+
+  // Add a "chain" function, which will delegate to the wrapper.
+  _.chain = function(obj) {
+    return _(obj).chain();
   };
 
   // The OOP Wrapper
@@ -950,8 +965,11 @@
   each(['pop', 'push', 'reverse', 'shift', 'sort', 'splice', 'unshift'], function(name) {
     var method = ArrayProto[name];
     wrapper.prototype[name] = function() {
-      method.apply(this._wrapped, arguments);
-      return result(this._wrapped, this._chain);
+      var wrapped = this._wrapped;
+      method.apply(wrapped, arguments);
+      var length = wrapped.length;
+      if ((name == 'shift' || name == 'splice') && length === 0) delete wrapped[0];
+      return result(wrapped, this._chain);
     };
   });
 

public/stylesheets/sass/application.sass

@@ -935,7 +935,7 @@ label:not(.bootstrapped)
       :display none !important
 
     textarea
-      :height 18px !important
+      :height 24px !important
 
     .counter
       :display none

public/stylesheets/sass/mentions.scss

@@ -0,0 +1,96 @@
+
+@import 'mixins';
+
+.mentions-input-box {
+  background: #fff;
+  position: relative;
+
+  textarea {
+    display: block;
+    background: transparent;
+    border: 1px solid #dcdcdc;
+    border-radius: 3px;
+    outline: 0;
+    overflow: hidden;
+    position: relative;
+    resize: none;
+    width: 100%;
+
+    
+    -webkit-box-sizing: border-box;
+    -moz-box-sizing: border-box;
+    box-sizing: border-box;
+  }
+
+  .mentions-autocomplete-list {
+    background: white;
+    display: none;
+    left: 0;
+    margin-left: -1px;
+    position: absolute;
+    right: 0;
+    z-index: 10000;
+
+
+    ul {
+      border: 1px solid #999;
+      margin: 0;
+      padding: 0;
+
+      @include border-radius(0px, 0px, 5px, 5px);
+
+      li {
+        background: white;
+        border-bottom: 1px solid #ccc;
+        cursor: pointer;
+        font-size: 15px;
+        height: 26px;
+        line-height: 26px;
+        list-style: none;
+        margin: 0;
+        overflow: hidden;
+        padding: 5px;
+        text-decoration: underline;
+        white-space: nowrap;
+
+        &:hover, &.active { background: #eee; }
+        &:last-child { @include border-radius(0px, 0px, 5px, 5px); }
+        
+        img, div.icon {
+          float: left;
+          height: 25px;
+          margin-right: 5px;
+          width: 25px;
+        }
+      }
+    }
+  }
+
+  .mentions {
+    bottom: 0;
+    color: white;
+    font-size: 14px;
+    left: 1px;
+    line-height: normal;
+    overflow: hidden;
+    padding: 6px 0px 3px;
+    position: absolute;
+    right: 0;
+    top: -1px;
+    white-space: pre-wrap;
+    word-wrap: break-word;
+
+    > div {
+      color: white;
+      white-space: pre-wrap;
+      width: 100%;
+
+      strong { background: #d8dfea; }
+
+      em {
+      }
+    }
+  }
+}
+
+#publisher .mentions-autocomplete-list ul { width: 483px; }

public/stylesheets/vendor/jquery.mentionsInput.css

@@ -0,0 +1,4 @@
+
+#publisher .mentions-input-box .mentions-autocomplete-list {
+  width: 483px;
+}