1 files changed, 91 insertions, 0 deletions

diff --git a/node_modules/montage/core/next-tick.js b/node_modules/montage/core/next-tick.js
new file mode 100644
index 00000000..0c3e209a
--- /dev/null
+++ b/node_modules/montage/core/next-tick.js
@@ -0,0 +1,91 @@
+/* <copyright>
+ This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
+ No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
+ (c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
+ </copyright> */
+
+/**
+    Defines [nextTick()]{#link nextTick}
+    @see nextTick
+    @module montage/core/next-tick
+*/
+
+/**
+    @function
+    @name nextTick
+*/
+
+(function (definition) {
+    if (typeof bootstrap !== "undefined") {
+        bootstrap("core/next-tick", definition);
+    } else if (typeof require !== "undefined") {
+        definition(require, exports, module);
+    } else {
+        definition({}, {}, {});
+    }
+})(function (require, exports, module) {
+
+var nextTick;
+// Node implementation:
+if (typeof process !== "undefined") {
+    nextTick = process.nextTick;
+// Browser implementation: based on MessageChannel, setImmediate, or setTimeout
+} else {
+
+    // queue of tasks implemented as a singly linked list with a head node
+    var head = {}, tail = head;
+    // whether a task is pending is represented by the existence of head.next
+
+    nextTick = function (task) {
+        var alreadyPending = head.next;
+        tail = tail.next = {task: task};
+        if (!alreadyPending) {
+            // setImmediate,
+            // postMessage, or
+            // setTimeout:
+            request(flush, 0);
+        }
+    }
+
+    var flush = function () {
+        try {
+            // unroll all pending events
+            while (head.next) {
+                head = head.next;
+                // guarantee consistent queue state
+                // before task, because it may throw
+                head.task(); // may throw
+            }
+        } finally {
+            // if a task throws an exception and
+            // there are more pending tasks, dispatch
+            // another event
+            if (head.next) {
+                // setImmediate,
+                // postMessage, or
+                // setTimeout:
+                request(flush, 0);
+            }
+        }
+    };
+
+    var request; // must always be called like request(flush, 0);
+    // in order of desirability:
+    if (typeof setImmediate !== "undefined") {
+        request = setImmediate;
+    } else if (typeof MessageChannel !== "undefined") {
+        // http://www.nonblocking.io/2011/06/windownexttick.html
+        var channel = new MessageChannel();
+        channel.port1.onmessage = flush;
+        request = function (flush, zero) {
+            channel.port2.postMessage(0);
+        };
+    } else {
+        request = setTimeout;
+    }
+
+}
+
+exports.nextTick = nextTick;
+
+});