WordPress/wp-includes/js/dist/priority-queue.js
youknowriad 5cf8452ae9 Build/Test Tools: Add the e2e tests setup.
- Adds a local environment based on docker
 - Adds the e2e tests setup
 - Adds a "Hello World" e2e test to serve as a template

Props gziolo, herregroen, mcsf.
Fixes #45165.

Built from https://develop.svn.wordpress.org/trunk@45570


git-svn-id: http://core.svn.wordpress.org/trunk@45381 1a063a9b-81f0-0310-95a4-ce76da25c4cd
2019-06-27 11:28:19 +00:00

173 lines
5.7 KiB
JavaScript

this["wp"] = this["wp"] || {}; this["wp"]["priorityQueue"] =
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/***/ 332:
/***/ (function(module, __webpack_exports__, __webpack_require__) {
"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "createQueue", function() { return createQueue; });
var requestIdleCallback = window.requestIdleCallback ? window.requestIdleCallback : window.requestAnimationFrame;
/**
* Creates a context-aware queue that only executes
* the last task of a given context.
*
* @example
*```js
* import { createQueue } from '@wordpress/priority-queue';
*
* const queue = createQueue();
*
* // Context objects.
* const ctx1 = {};
* const ctx2 = {};
*
* // For a given context in the queue, only the last callback is executed.
* queue.add( ctx1, () => console.log( 'This will be printed first' ) );
* queue.add( ctx2, () => console.log( 'This won\'t be printed' ) );
* queue.add( ctx2, () => console.log( 'This will be printed second' ) );
*```
*
* @return {Object} Queue object with `add` and `flush` methods.
*/
var createQueue = function createQueue() {
var waitingList = [];
var elementsMap = new WeakMap();
var isRunning = false;
var runWaitingList = function runWaitingList(deadline) {
do {
if (waitingList.length === 0) {
isRunning = false;
return;
}
var nextElement = waitingList.shift();
elementsMap.get(nextElement)();
elementsMap.delete(nextElement);
} while (deadline && deadline.timeRemaining && deadline.timeRemaining() > 0);
requestIdleCallback(runWaitingList);
};
var add = function add(element, item) {
if (!elementsMap.has(element)) {
waitingList.push(element);
}
elementsMap.set(element, item);
if (!isRunning) {
isRunning = true;
requestIdleCallback(runWaitingList);
}
};
var flush = function flush(element) {
if (!elementsMap.has(element)) {
return false;
}
elementsMap.delete(element);
var index = waitingList.indexOf(element);
waitingList.splice(index, 1);
return true;
};
return {
add: add,
flush: flush
};
};
/***/ })
/******/ });