1 files changed, 34 insertions, 0 deletions
diff --git a/addons/web/static/lib/jquery.deferred-queue/jquery.deferred-queue.js b/addons/web/static/lib/jquery.deferred-queue/jquery.deferred-queue.js
new file mode 100644
index 00000000000..7ef83342f77
--- /dev/null
+++ b/addons/web/static/lib/jquery.deferred-queue/jquery.deferred-queue.js
@@ -0,0 +1,34 @@
+(function ($) {
+    "use strict";
+    $.extend($.Deferred, {
+        queue: function () {
+            var queueDeferred = $.Deferred();
+            var promises = 0;
+
+            function resolve() {
+                if (--promises > 0) {
+                    return;
+                }
+                setTimeout($.proxy(queueDeferred, 'resolve'), 0);
+            }
+
+            var promise = $.extend(queueDeferred.promise(), {
+                push: function () {
+                    if (this.isResolved() || this.isRejected()) {
+                        throw new Error("Can not add promises to a resolved "
+                                        + "or rejected promise queue");
+                    }
+
+                    promises += 1;
+                    $.when.apply(null, arguments).then(
+                        resolve, $.proxy(queueDeferred, 'reject'));
+                    return this;
+                }
+            });
+            if (arguments.length) {
+                promise.push.apply(promise, arguments);
+            }
+            return promise;
+        }
+    });
+})(jQuery)