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author | Minteck <contact@minteck.org> | 2023-02-23 19:34:56 +0100 |
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committer | Minteck <contact@minteck.org> | 2023-02-23 19:34:56 +0100 |
commit | 3d1cd02f27518f1a04374c7c8320cd5d82ede6e9 (patch) | |
tree | 75be5fba4368472fb11c8015aee026b2b9a71888 /together/node_modules/asap/browser-raw.js | |
parent | 8cc1f13c17fa2fb5a4410542d39e650e02945634 (diff) | |
download | pluralconnect-3d1cd02f27518f1a04374c7c8320cd5d82ede6e9.tar.gz pluralconnect-3d1cd02f27518f1a04374c7c8320cd5d82ede6e9.tar.bz2 pluralconnect-3d1cd02f27518f1a04374c7c8320cd5d82ede6e9.zip |
Updated 40 files, added 37 files, deleted 1103 files and renamed 3905 files (automated)
Diffstat (limited to 'together/node_modules/asap/browser-raw.js')
-rw-r--r-- | together/node_modules/asap/browser-raw.js | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/together/node_modules/asap/browser-raw.js b/together/node_modules/asap/browser-raw.js deleted file mode 100644 index 9cee7e3..0000000 --- a/together/node_modules/asap/browser-raw.js +++ /dev/null @@ -1,223 +0,0 @@ -"use strict"; - -// Use the fastest means possible to execute a task in its own turn, with -// priority over other events including IO, animation, reflow, and redraw -// events in browsers. -// -// An exception thrown by a task will permanently interrupt the processing of -// subsequent tasks. The higher level `asap` function ensures that if an -// exception is thrown by a task, that the task queue will continue flushing as -// soon as possible, but if you use `rawAsap` directly, you are responsible to -// either ensure that no exceptions are thrown from your task, or to manually -// call `rawAsap.requestFlush` if an exception is thrown. -module.exports = rawAsap; -function rawAsap(task) { - if (!queue.length) { - requestFlush(); - flushing = true; - } - // Equivalent to push, but avoids a function call. - queue[queue.length] = task; -} - -var queue = []; -// Once a flush has been requested, no further calls to `requestFlush` are -// necessary until the next `flush` completes. -var flushing = false; -// `requestFlush` is an implementation-specific method that attempts to kick -// off a `flush` event as quickly as possible. `flush` will attempt to exhaust -// the event queue before yielding to the browser's own event loop. -var requestFlush; -// The position of the next task to execute in the task queue. This is -// preserved between calls to `flush` so that it can be resumed if -// a task throws an exception. -var index = 0; -// If a task schedules additional tasks recursively, the task queue can grow -// unbounded. To prevent memory exhaustion, the task queue will periodically -// truncate already-completed tasks. -var capacity = 1024; - -// The flush function processes all tasks that have been scheduled with -// `rawAsap` unless and until one of those tasks throws an exception. -// If a task throws an exception, `flush` ensures that its state will remain -// consistent and will resume where it left off when called again. -// However, `flush` does not make any arrangements to be called again if an -// exception is thrown. -function flush() { - while (index < queue.length) { - var currentIndex = index; - // Advance the index before calling the task. This ensures that we will - // begin flushing on the next task the task throws an error. - index = index + 1; - queue[currentIndex].call(); - // Prevent leaking memory for long chains of recursive calls to `asap`. - // If we call `asap` within tasks scheduled by `asap`, the queue will - // grow, but to avoid an O(n) walk for every task we execute, we don't - // shift tasks off the queue after they have been executed. - // Instead, we periodically shift 1024 tasks off the queue. - if (index > capacity) { - // Manually shift all values starting at the index back to the - // beginning of the queue. - for (var scan = 0, newLength = queue.length - index; scan < newLength; scan++) { - queue[scan] = queue[scan + index]; - } - queue.length -= index; - index = 0; - } - } - queue.length = 0; - index = 0; - flushing = false; -} - -// `requestFlush` is implemented using a strategy based on data collected from -// every available SauceLabs Selenium web driver worker at time of writing. -// https://docs.google.com/spreadsheets/d/1mG-5UYGup5qxGdEMWkhP6BWCz053NUb2E1QoUTU16uA/edit#gid=783724593 - -// Safari 6 and 6.1 for desktop, iPad, and iPhone are the only browsers that -// have WebKitMutationObserver but not un-prefixed MutationObserver. -// Must use `global` or `self` instead of `window` to work in both frames and web -// workers. `global` is a provision of Browserify, Mr, Mrs, or Mop. - -/* globals self */ -var scope = typeof global !== "undefined" ? global : self; -var BrowserMutationObserver = scope.MutationObserver || scope.WebKitMutationObserver; - -// MutationObservers are desirable because they have high priority and work -// reliably everywhere they are implemented. -// They are implemented in all modern browsers. -// -// - Android 4-4.3 -// - Chrome 26-34 -// - Firefox 14-29 -// - Internet Explorer 11 -// - iPad Safari 6-7.1 -// - iPhone Safari 7-7.1 -// - Safari 6-7 -if (typeof BrowserMutationObserver === "function") { - requestFlush = makeRequestCallFromMutationObserver(flush); - -// MessageChannels are desirable because they give direct access to the HTML -// task queue, are implemented in Internet Explorer 10, Safari 5.0-1, and Opera -// 11-12, and in web workers in many engines. -// Although message channels yield to any queued rendering and IO tasks, they -// would be better than imposing the 4ms delay of timers. -// However, they do not work reliably in Internet Explorer or Safari. - -// Internet Explorer 10 is the only browser that has setImmediate but does -// not have MutationObservers. -// Although setImmediate yields to the browser's renderer, it would be -// preferrable to falling back to setTimeout since it does not have -// the minimum 4ms penalty. -// Unfortunately there appears to be a bug in Internet Explorer 10 Mobile (and -// Desktop to a lesser extent) that renders both setImmediate and -// MessageChannel useless for the purposes of ASAP. -// https://github.com/kriskowal/q/issues/396 - -// Timers are implemented universally. -// We fall back to timers in workers in most engines, and in foreground -// contexts in the following browsers. -// However, note that even this simple case requires nuances to operate in a -// broad spectrum of browsers. -// -// - Firefox 3-13 -// - Internet Explorer 6-9 -// - iPad Safari 4.3 -// - Lynx 2.8.7 -} else { - requestFlush = makeRequestCallFromTimer(flush); -} - -// `requestFlush` requests that the high priority event queue be flushed as -// soon as possible. -// This is useful to prevent an error thrown in a task from stalling the event -// queue if the exception handled by Node.js’s -// `process.on("uncaughtException")` or by a domain. -rawAsap.requestFlush = requestFlush; - -// To request a high priority event, we induce a mutation observer by toggling -// the text of a text node between "1" and "-1". -function makeRequestCallFromMutationObserver(callback) { - var toggle = 1; - var observer = new BrowserMutationObserver(callback); - var node = document.createTextNode(""); - observer.observe(node, {characterData: true}); - return function requestCall() { - toggle = -toggle; - node.data = toggle; - }; -} - -// The message channel technique was discovered by Malte Ubl and was the -// original foundation for this library. -// http://www.nonblocking.io/2011/06/windownexttick.html - -// Safari 6.0.5 (at least) intermittently fails to create message ports on a -// page's first load. Thankfully, this version of Safari supports -// MutationObservers, so we don't need to fall back in that case. - -// function makeRequestCallFromMessageChannel(callback) { -// var channel = new MessageChannel(); -// channel.port1.onmessage = callback; -// return function requestCall() { -// channel.port2.postMessage(0); -// }; -// } - -// For reasons explained above, we are also unable to use `setImmediate` -// under any circumstances. -// Even if we were, there is another bug in Internet Explorer 10. -// It is not sufficient to assign `setImmediate` to `requestFlush` because -// `setImmediate` must be called *by name* and therefore must be wrapped in a -// closure. -// Never forget. - -// function makeRequestCallFromSetImmediate(callback) { -// return function requestCall() { -// setImmediate(callback); -// }; -// } - -// Safari 6.0 has a problem where timers will get lost while the user is -// scrolling. This problem does not impact ASAP because Safari 6.0 supports -// mutation observers, so that implementation is used instead. -// However, if we ever elect to use timers in Safari, the prevalent work-around -// is to add a scroll event listener that calls for a flush. - -// `setTimeout` does not call the passed callback if the delay is less than -// approximately 7 in web workers in Firefox 8 through 18, and sometimes not -// even then. - -function makeRequestCallFromTimer(callback) { - return function requestCall() { - // We dispatch a timeout with a specified delay of 0 for engines that - // can reliably accommodate that request. This will usually be snapped - // to a 4 milisecond delay, but once we're flushing, there's no delay - // between events. - var timeoutHandle = setTimeout(handleTimer, 0); - // However, since this timer gets frequently dropped in Firefox - // workers, we enlist an interval handle that will try to fire - // an event 20 times per second until it succeeds. - var intervalHandle = setInterval(handleTimer, 50); - - function handleTimer() { - // Whichever timer succeeds will cancel both timers and - // execute the callback. - clearTimeout(timeoutHandle); - clearInterval(intervalHandle); - callback(); - } - }; -} - -// This is for `asap.js` only. -// Its name will be periodically randomized to break any code that depends on -// its existence. -rawAsap.makeRequestCallFromTimer = makeRequestCallFromTimer; - -// ASAP was originally a nextTick shim included in Q. This was factored out -// into this ASAP package. It was later adapted to RSVP which made further -// amendments. These decisions, particularly to marginalize MessageChannel and -// to capture the MutationObserver implementation in a closure, were integrated -// back into ASAP proper. -// https://github.com/tildeio/rsvp.js/blob/cddf7232546a9cf858524b75cde6f9edf72620a7/lib/rsvp/asap.js |