Create jmt_setImmediate.js

library/jmt_setImmediate.js

@@ -0,0 +1,223 @@
+// ======================================= setImmediate =======================================
+// 
+// GitHub: https://github.com/YuzuJS/setImmediate
+// production file: https://cdnjs.cloudflare.com/ajax/libs/setImmediate/1.0.5/setImmediate.js
+// minified production file: https://cdnjs.cloudflare.com/ajax/libs/setImmediate/1.0.5/setImmediate.min.js
+/**
+ * 
+ * 
+      Copyright (c) 2012 Barnesandnoble.com, llc, Donavon West, and Domenic Denicola
+
+      Permission is hereby granted, free of charge, to any person obtaining
+      a copy of this software and associated documentation files (the
+      "Software"), to deal in the Software without restriction, including
+      without limitation the rights to use, copy, modify, merge, publish,
+      distribute, sublicense, and/or sell copies of the Software, and to
+      permit persons to whom the Software is furnished to do so, subject to
+      the following conditions:
+
+      The above copyright notice and this permission notice shall be
+      included in all copies or substantial portions of the Software.
+
+      THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+      EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+      MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+      NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+      LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+      OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+      WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ * 
+ * 
+ */
+
+(function (_self_, undefined) {
+    "use strict";
+
+    const global = (_self_.jmt || (_self_.jmt = {}));
+
+    if (global.setImmediate) {
+        return;
+    }
+
+    var nextHandle = 1; // Spec says greater than zero
+    var tasksByHandle = {};
+    var currentlyRunningATask = false;
+    var doc = global.document;
+    var registerImmediate;
+
+    function setImmediate(callback) {
+        // Callback can either be a function or a string
+        if (typeof callback !== "function") {
+            callback = new Function("" + callback);
+        }
+        // Copy function arguments
+        var args = new Array(arguments.length - 1);
+        for (var i = 0; i < args.length; i++) {
+            args[i] = arguments[i + 1];
+        }
+        // Store and register the task
+        var task = { callback: callback, args: args };
+        tasksByHandle[nextHandle] = task;
+        registerImmediate(nextHandle);
+        return nextHandle++;
+    }
+
+    function clearImmediate(handle) {
+        delete tasksByHandle[handle];
+    }
+
+    function run(task) {
+        var callback = task.callback;
+        var args = task.args;
+        switch (args.length) {
+            case 0:
+                callback();
+                break;
+            case 1:
+                callback(args[0]);
+                break;
+            case 2:
+                callback(args[0], args[1]);
+                break;
+            case 3:
+                callback(args[0], args[1], args[2]);
+                break;
+            default:
+                callback.apply(undefined, args);
+                break;
+        }
+    }
+
+    function runIfPresent(handle) {
+        // From the spec: "Wait until any invocations of this algorithm started before this one have completed."
+        // So if we're currently running a task, we'll need to delay this invocation.
+        if (currentlyRunningATask) {
+            // Delay by doing a setTimeout. setImmediate was tried instead, but in Firefox 7 it generated a
+            // "too much recursion" error.
+            setTimeout(runIfPresent, 0, handle);
+        } else {
+            var task = tasksByHandle[handle];
+            if (task) {
+                currentlyRunningATask = true;
+                try {
+                    run(task);
+                } finally {
+                    clearImmediate(handle);
+                    currentlyRunningATask = false;
+                }
+            }
+        }
+    }
+
+    function installNextTickImplementation() {
+        registerImmediate = function (handle) {
+            process.nextTick(function () { runIfPresent(handle); });
+        };
+    }
+
+    function canUsePostMessage() {
+        // The test against `importScripts` prevents this implementation from being installed inside a web worker,
+        // where `global.postMessage` means something completely different and can't be used for this purpose.
+        if (global.postMessage && !global.importScripts) {
+            var postMessageIsAsynchronous = true;
+            var oldOnMessage = global.onmessage;
+            global.onmessage = function () {
+                postMessageIsAsynchronous = false;
+            };
+            global.postMessage("", "*");
+            global.onmessage = oldOnMessage;
+            return postMessageIsAsynchronous;
+        }
+    }
+
+    function installPostMessageImplementation() {
+        // Installs an event handler on `global` for the `message` event: see
+        // * https://developer.mozilla.org/en/DOM/window.postMessage
+        // * http://www.whatwg.org/specs/web-apps/current-work/multipage/comms.html#crossDocumentMessages
+
+        var messagePrefix = "setImmediate$" + Math.random() + "$";
+        var onGlobalMessage = function (event) {
+            if (event.source === global &&
+                typeof event.data === "string" &&
+                event.data.indexOf(messagePrefix) === 0) {
+                runIfPresent(+event.data.slice(messagePrefix.length));
+            }
+        };
+
+        if (global.addEventListener) {
+            global.addEventListener("message", onGlobalMessage, false);
+        } else {
+            global.attachEvent("onmessage", onGlobalMessage);
+        }
+
+        registerImmediate = function (handle) {
+            global.postMessage(messagePrefix + handle, "*");
+        };
+    }
+
+    function installMessageChannelImplementation() {
+        var channel = new MessageChannel();
+        channel.port1.onmessage = function (event) {
+            var handle = event.data;
+            runIfPresent(handle);
+        };
+
+        registerImmediate = function (handle) {
+            channel.port2.postMessage(handle);
+        };
+    }
+
+    function installReadyStateChangeImplementation() {
+        var html = doc.documentElement;
+        registerImmediate = function (handle) {
+            // Create a <script> element; its readystatechange event will be fired asynchronously once it is inserted
+            // into the document. Do so, thus queuing up the task. Remember to clean up once it's been called.
+            var script = doc.createElement("script");
+            script.onreadystatechange = function () {
+                runIfPresent(handle);
+                script.onreadystatechange = null;
+                html.removeChild(script);
+                script = null;
+            };
+            html.appendChild(script);
+        };
+    }
+
+    function installSetTimeoutImplementation() {
+        registerImmediate = function (handle) {
+            setTimeout(runIfPresent, 0, handle);
+        };
+    }
+
+    // If supported, we should attach to the prototype of global, since that is where setTimeout et al. live.
+    var attachTo = Object.getPrototypeOf && Object.getPrototypeOf(global);
+    attachTo = attachTo && attachTo.setTimeout ? attachTo : global;
+
+    // Don't get fooled by e.g. browserify environments.
+    if ({}.toString.call(global.process) === "[object process]") {
+        // For Node.js before 0.9
+        installNextTickImplementation();
+
+    } else if (canUsePostMessage()) {
+        // For non-IE10 modern browsers
+        installPostMessageImplementation();
+
+    } else if (global.MessageChannel) {
+        // For web workers, where supported
+        installMessageChannelImplementation();
+
+    } else if (doc && "onreadystatechange" in doc.createElement("script")) {
+        // For IE 6–8
+        installReadyStateChangeImplementation();
+
+    } else {
+        // For older browsers
+        installSetTimeoutImplementation();
+    }
+
+    attachTo.setImmediate = setImmediate;
+    attachTo.clearImmediate = clearImmediate;
+}(typeof self === "undefined" ? typeof global === "undefined" ? this : global : self));
+
+// 
+// ======================================= setImmediate =======================================