Fix handle_node_with_team() to correctly set `this' within callback.

[mkws-moved-to-github.git] / tools / htdocs / mkws.js

diff --git a/tools/htdocs/mkws.js b/tools/htdocs/mkws.js
index 3c273eb..95c3b74 100644 (file)
--- a/tools/htdocs/mkws.js
+++ b/tools/htdocs/mkws.js
@@ -142,6 +142,29 @@ var mkws = {
 };
 
 
+// The following PubSub code is modified from the jQuery manual:
+// https://api.jquery.com/jQuery.Callbacks/
+//
+// Use as:
+//     mkws.queue("eventName").subscribe(function(param1, param2 ...) { ... });
+//     mkws.queue("eventName").publish(arg1, arg2, ...);
+
+(function() {
+  var queues = {};
+  mkws.queue = function(id) {
+    if (!queues[id]) {
+      var callbacks = $.Callbacks();
+      queues[id] = {
+       publish: callbacks.fire,
+       subscribe: callbacks.add,
+       unsubscribe: callbacks.remove
+      };
+    }
+    return queues[id];
+  }
+}());
+
+
 // Define empty mkws_config for simple applications that don't define it.
 if (mkws_config == null || typeof mkws_config != 'object') {
     var mkws_config = {};
@@ -1224,7 +1247,7 @@ function team($, teamName) {
                tname = cname.replace(/^mkwsTeam_/, '');
            }
        }
-       callback(tname);
+       callback.call(this, tname);
     }
 
 
@@ -1418,14 +1441,13 @@ function team($, teamName) {
        // the mkwsTeam_* class. Make all team objects.
        var then = $.now();
        $('[class^="mkws"],[class*=" mkws"]').each(function () {
-           var node = this;
-           mkws.handle_node_with_team(node, function(tname) {
+           mkws.handle_node_with_team(this, function(tname) {
                if (!mkws.teams[tname]) {
                    mkws.teams[tname] = team(j, tname);
                    debug("Made MKWS team '" + tname + "'");
                }
                var myTeam = mkws.teams[tname]
-               var myWidget = widget(j, myTeam, node)
+               var myWidget = widget(j, myTeam, this)
            });
        });
        var now = $.now();