expose method for getting a full user list on the client including historical data

src/static/js/ace2_inner.js

@@ -3731,32 +3731,71 @@ function Ace2Inner(){
           var apool = rep.apool;
 
           // TODO: support selection ranges
-          // TODO: Support multiple authors
           // TODO: Still work when authorship colors have been cleared
           // TODO: i18n
           // TODO: There appears to be a race condition or so.
 
           var author = null;
           if (alineAttrs) {
+            var authors = [];
+            var authorNames = [];
             var opIter = Changeset.opIterator(alineAttrs);
-            if (opIter.hasNext()) {
+
+            while (opIter.hasNext()){
               var op = opIter.next();
               authorId = Changeset.opAttributeValue(op, 'author', apool);
+
+              // Only push unique authors and ones with values
+              if(authors.indexOf(authorId) === -1 && authorId !== ""){
+                authors.push(authorId);
               }
+
+            }
+
+          }
+
+          // No author information is available IE on a new pad.
+          if(authors.length === 0){
+            var authorString = "No author information is available";
+          }
+          else{
+            // Known authors info, both current and historical
+            var padAuthors = parent.parent.pad.userList();
+            var authorObj = {};
+            authors.forEach(function(authorId){
+              padAuthors.forEach(function(padAuthor){
+                // If the person doing the lookup is the author..
+                if(padAuthor.userId === authorId){
+                  if(parent.parent.clientVars.userId === authorId){
+                    authorObj = {
+                      name: "Me"
                     }
-          if(authorId.length === 0){
-            author = "not available";
                   }else{
-            var authorObj = parent.parent.clientVars.collab_client_vars.historicalAuthorData[authorId];
+                    authorObj = padAuthor;
+                  }
+                }
+              });
+              if(!authorObj){
+                author = "Unknown";
+                return;
+              }
               author = authorObj.name;
-            if(author === "") author = "not available";
+              if(!author) author = "Unknown";
+              authorNames.push(author);
+            })
+          }
+          if(authors.length === 1){
+            var authorString = "The author of this line is " + authorNames;
+          }
+          if(authors.length > 1){
+            var authorString = "The authors of this line are " + authorNames.join(" & ");
 	  }
 
           parent.parent.$.gritter.add({
             // (string | mandatory) the heading of the notification
-            title: 'Authors',
+            title: 'Line Authors',
             // (string | mandatory) the text inside the notification
-            text: 'The author of this line is ' + author,
+            text: authorString,
             // (bool | optional) if you want it to fade out on its own or just sit there
             sticky: false,
             // (int | optional) the time you want it to be alive for before fading out

src/static/js/pad.js

@@ -433,6 +433,10 @@ var pad = {
   {
     return pad.myUserInfo.name;
   },
+  userList: function()
+  {
+    return paduserlist.users();
+  },
   sendClientReady: function(isReconnect, messageType)
   {
     messageType = typeof messageType !== 'undefined' ? messageType : 'CLIENT_READY';

src/static/js/pad_userlist.js

@@ -508,6 +508,30 @@ var paduserlist = (function()
       });
       //
     },
+    users: function(){
+      // Returns an object of users who have been on this pad
+      // Firstly we have to get live data..
+      var userList = otherUsersInfo;
+      // Now we need to add ourselves..
+      userList.push(myUserInfo);
+      // Now we add historical authors
+      var historical = clientVars.collab_client_vars.historicalAuthorData;
+      for (var key in historical){
+        var userId = historical[key].userId;
+        // Check we don't already have this author in our array
+        var exists = false;
+
+        userList.forEach(function(user){
+          if(user.userId === userId) exists = true;
+        });
+
+        if(exists === false){
+          userList.push(historical[key]);
+        }
+
+      }
+      return userList;
+    },
     setMyUserInfo: function(info)
     {
       //translate the colorId