{"version":3,"file":"js/vendors/asap.js","sources":["webpack:///./node_modules/asap/browser-asap.js","webpack:///./node_modules/asap/browser-raw.js"],"sourcesContent":["\"use strict\";\n\n// rawAsap provides everything we need except exception management.\nvar rawAsap = require(\"./raw\");\n// RawTasks are recycled to reduce GC churn.\nvar freeTasks = [];\n// We queue errors to ensure they are thrown in right order (FIFO).\n// Array-as-queue is good enough here, since we are just dealing with exceptions.\nvar pendingErrors = [];\nvar requestErrorThrow = rawAsap.makeRequestCallFromTimer(throwFirstError);\n\nfunction throwFirstError() {\n    if (pendingErrors.length) {\n        throw pendingErrors.shift();\n    }\n}\n\n/**\n * Calls a task as soon as possible after returning, in its own event, with priority\n * over other events like animation, reflow, and repaint. An error thrown from an\n * event will not interrupt, nor even substantially slow down the processing of\n * other events, but will be rather postponed to a lower priority event.\n * @param {{call}} task A callable object, typically a function that takes no\n * arguments.\n */\nmodule.exports = asap;\nfunction asap(task) {\n    var rawTask;\n    if (freeTasks.length) {\n        rawTask = freeTasks.pop();\n    } else {\n        rawTask = new RawTask();\n    }\n    rawTask.task = task;\n    rawAsap(rawTask);\n}\n\n// We wrap tasks with recyclable task objects.  A task object implements\n// `call`, just like a function.\nfunction RawTask() {\n    this.task = null;\n}\n\n// The sole purpose of wrapping the task is to catch the exception and recycle\n// the task object after its single use.\nRawTask.prototype.call = function () {\n    try {\n        this.task.call();\n    } catch (error) {\n        if (asap.onerror) {\n            // This hook exists purely for testing purposes.\n            // Its name will be periodically randomized to break any code that\n            // depends on its existence.\n            asap.onerror(error);\n        } else {\n            // In a web browser, exceptions are not fatal. However, to avoid\n            // slowing down the queue of pending tasks, we rethrow the error in a\n            // lower priority turn.\n            pendingErrors.push(error);\n            requestErrorThrow();\n        }\n    } finally {\n        this.task = null;\n        freeTasks[freeTasks.length] = this;\n    }\n};\n","\"use strict\";\n\n// Use the fastest means possible to execute a task in its own turn, with\n// priority over other events including IO, animation, reflow, and redraw\n// events in browsers.\n//\n// An exception thrown by a task will permanently interrupt the processing of\n// subsequent tasks. The higher level `asap` function ensures that if an\n// exception is thrown by a task, that the task queue will continue flushing as\n// soon as possible, but if you use `rawAsap` directly, you are responsible to\n// either ensure that no exceptions are thrown from your task, or to manually\n// call `rawAsap.requestFlush` if an exception is thrown.\nmodule.exports = rawAsap;\nfunction rawAsap(task) {\n    if (!queue.length) {\n        requestFlush();\n        flushing = true;\n    }\n    // Equivalent to push, but avoids a function call.\n    queue[queue.length] = task;\n}\n\nvar queue = [];\n// Once a flush has been requested, no further calls to `requestFlush` are\n// necessary until the next `flush` completes.\nvar flushing = false;\n// `requestFlush` is an implementation-specific method that attempts to kick\n// off a `flush` event as quickly as possible. `flush` will attempt to exhaust\n// the event queue before yielding to the browser's own event loop.\nvar requestFlush;\n// The position of the next task to execute in the task queue. This is\n// preserved between calls to `flush` so that it can be resumed if\n// a task throws an exception.\nvar index = 0;\n// If a task schedules additional tasks recursively, the task queue can grow\n// unbounded. To prevent memory exhaustion, the task queue will periodically\n// truncate already-completed tasks.\nvar capacity = 1024;\n\n// The flush function processes all tasks that have been scheduled with\n// `rawAsap` unless and until one of those tasks throws an exception.\n// If a task throws an exception, `flush` ensures that its state will remain\n// consistent and will resume where it left off when called again.\n// However, `flush` does not make any arrangements to be called again if an\n// exception is thrown.\nfunction flush() {\n    while (index < queue.length) {\n        var currentIndex = index;\n        // Advance the index before calling the task. This ensures that we will\n        // begin flushing on the next task the task throws an error.\n        index = index + 1;\n        queue[currentIndex].call();\n        // Prevent leaking memory for long chains of recursive calls to `asap`.\n        // If we call `asap` within tasks scheduled by `asap`, the queue will\n        // grow, but to avoid an O(n) walk for every task we execute, we don't\n        // shift tasks off the queue after they have been executed.\n        // Instead, we periodically shift 1024 tasks off the queue.\n        if (index > capacity) {\n            // Manually shift all values starting at the index back to the\n            // beginning of the queue.\n            for (var scan = 0, newLength = queue.length - index; scan < newLength; scan++) {\n                queue[scan] = queue[scan + index];\n            }\n            queue.length -= index;\n            index = 0;\n        }\n    }\n    queue.length = 0;\n    index = 0;\n    flushing = false;\n}\n\n// `requestFlush` is implemented using a strategy based on data collected from\n// every available SauceLabs Selenium web driver worker at time of writing.\n// https://docs.google.com/spreadsheets/d/1mG-5UYGup5qxGdEMWkhP6BWCz053NUb2E1QoUTU16uA/edit#gid=783724593\n\n// Safari 6 and 6.1 for desktop, iPad, and iPhone are the only browsers that\n// have WebKitMutationObserver but not un-prefixed MutationObserver.\n// Must use `global` or `self` instead of `window` to work in both frames and web\n// workers. `global` is a provision of Browserify, Mr, Mrs, or Mop.\n\n/* globals self */\nvar scope = typeof global !== \"undefined\" ? global : self;\nvar BrowserMutationObserver = scope.MutationObserver || scope.WebKitMutationObserver;\n\n// MutationObservers are desirable because they have high priority and work\n// reliably everywhere they are implemented.\n// They are implemented in all modern browsers.\n//\n// - Android 4-4.3\n// - Chrome 26-34\n// - Firefox 14-29\n// - Internet Explorer 11\n// - iPad Safari 6-7.1\n// - iPhone Safari 7-7.1\n// - Safari 6-7\nif (typeof BrowserMutationObserver === \"function\") {\n    requestFlush = makeRequestCallFromMutationObserver(flush);\n\n// MessageChannels are desirable because they give direct access to the HTML\n// task queue, are implemented in Internet Explorer 10, Safari 5.0-1, and Opera\n// 11-12, and in web workers in many engines.\n// Although message channels yield to any queued rendering and IO tasks, they\n// would be better than imposing the 4ms delay of timers.\n// However, they do not work reliably in Internet Explorer or Safari.\n\n// Internet Explorer 10 is the only browser that has setImmediate but does\n// not have MutationObservers.\n// Although setImmediate yields to the browser's renderer, it would be\n// preferrable to falling back to setTimeout since it does not have\n// the minimum 4ms penalty.\n// Unfortunately there appears to be a bug in Internet Explorer 10 Mobile (and\n// Desktop to a lesser extent) that renders both setImmediate and\n// MessageChannel useless for the purposes of ASAP.\n// https://github.com/kriskowal/q/issues/396\n\n// Timers are implemented universally.\n// We fall back to timers in workers in most engines, and in foreground\n// contexts in the following browsers.\n// However, note that even this simple case requires nuances to operate in a\n// broad spectrum of browsers.\n//\n// - Firefox 3-13\n// - Internet Explorer 6-9\n// - iPad Safari 4.3\n// - Lynx 2.8.7\n} else {\n    requestFlush = makeRequestCallFromTimer(flush);\n}\n\n// `requestFlush` requests that the high priority event queue be flushed as\n// soon as possible.\n// This is useful to prevent an error thrown in a task from stalling the event\n// queue if the exception handled by Node.js’s\n// `process.on(\"uncaughtException\")` or by a domain.\nrawAsap.requestFlush = requestFlush;\n\n// To request a high priority event, we induce a mutation observer by toggling\n// the text of a text node between \"1\" and \"-1\".\nfunction makeRequestCallFromMutationObserver(callback) {\n    var toggle = 1;\n    var observer = new BrowserMutationObserver(callback);\n    var node = document.createTextNode(\"\");\n    observer.observe(node, {characterData: true});\n    return function requestCall() {\n        toggle = -toggle;\n        node.data = toggle;\n    };\n}\n\n// The message channel technique was discovered by Malte Ubl and was the\n// original foundation for this library.\n// http://www.nonblocking.io/2011/06/windownexttick.html\n\n// Safari 6.0.5 (at least) intermittently fails to create message ports on a\n// page's first load. Thankfully, this version of Safari supports\n// MutationObservers, so we don't need to fall back in that case.\n\n// function makeRequestCallFromMessageChannel(callback) {\n//     var channel = new MessageChannel();\n//     channel.port1.onmessage = callback;\n//     return function requestCall() {\n//         channel.port2.postMessage(0);\n//     };\n// }\n\n// For reasons explained above, we are also unable to use `setImmediate`\n// under any circumstances.\n// Even if we were, there is another bug in Internet Explorer 10.\n// It is not sufficient to assign `setImmediate` to `requestFlush` because\n// `setImmediate` must be called *by name* and therefore must be wrapped in a\n// closure.\n// Never forget.\n\n// function makeRequestCallFromSetImmediate(callback) {\n//     return function requestCall() {\n//         setImmediate(callback);\n//     };\n// }\n\n// Safari 6.0 has a problem where timers will get lost while the user is\n// scrolling. This problem does not impact ASAP because Safari 6.0 supports\n// mutation observers, so that implementation is used instead.\n// However, if we ever elect to use timers in Safari, the prevalent work-around\n// is to add a scroll event listener that calls for a flush.\n\n// `setTimeout` does not call the passed callback if the delay is less than\n// approximately 7 in web workers in Firefox 8 through 18, and sometimes not\n// even then.\n\nfunction makeRequestCallFromTimer(callback) {\n    return function requestCall() {\n        // We dispatch a timeout with a specified delay of 0 for engines that\n        // can reliably accommodate that request. This will usually be snapped\n        // to a 4 milisecond delay, but once we're flushing, there's no delay\n        // between events.\n        var timeoutHandle = setTimeout(handleTimer, 0);\n        // However, since this timer gets frequently dropped in Firefox\n        // workers, we enlist an interval handle that will try to fire\n        // an event 20 times per second until it succeeds.\n        var intervalHandle = setInterval(handleTimer, 50);\n\n        function handleTimer() {\n            // Whichever timer succeeds will cancel both timers and\n            // execute the callback.\n            clearTimeout(timeoutHandle);\n            clearInterval(intervalHandle);\n            callback();\n        }\n    };\n}\n\n// This is for `asap.js` only.\n// Its name will be periodically randomized to break any code that depends on\n// its existence.\nrawAsap.makeRequestCallFromTimer = makeRequestCallFromTimer;\n\n// ASAP was originally a nextTick shim included in Q. This was factored out\n// into this ASAP package. It was later adapted to RSVP which made further\n// amendments. These decisions, particularly to marginalize MessageChannel and\n// to capture the MutationObserver implementation in a closure, were integrated\n// back into ASAP proper.\n// https://github.com/tildeio/rsvp.js/blob/cddf7232546a9cf858524b75cde6f9edf72620a7/lib/rsvp/asap.js\n"],"mappings":";;;;;;;;;;AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;;;;;;;;;;;;ACjEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;;;;;A","sourceRoot":""}