Rewrite mediamanager JavaScript

Make it faster, prettier, less wrong, add UI effects, use jQuery UI Dialog,
Abstract tree view stuff away into jQuery.dw_tree

1 files changed, 14 insertions, 4 deletions

diff --git a/lib/scripts/events.js b/lib/scripts/events.js
index 95564be39..796d3cc4c 100644
--- a/lib/scripts/events.js
+++ b/lib/scripts/events.js
@@ -32,9 +32,19 @@ function addInitEvent(func) {
  * @param   mixed - any arguments to be passed to the function
  * @returns functionref
  */
-function bind (fnc) {
-    var args = Array.prototype.slice.call(arguments, 1);
-    return function() {
-        return fnc.apply(this, args);
+function bind(fnc/*, ... */) {
+    var Aps = Array.prototype.slice;
+    // Store passed arguments in this scope.
+    // Since arguments is no Array nor has an own slice method,
+    // we have to apply the slice method from the Array.prototype
+    var static_args = Aps.call(arguments, 1);
+
+    // Return a function evaluating the passed function with the
+    // given args and optional arguments passed on invocation.
+    return function (/* ... */) {
+        // Same here, but we use Array.prototype.slice solely for
+        // converting arguments to an Array.
+        return fnc.apply(this,
+                         static_args.concat(Aps.call(arguments, 0)));
     };
 }