WordPress/wp-includes/js/dist/priority-queue.js

173 lines
5.7 KiB
JavaScript

this["wp"] = this["wp"] || {}; this["wp"]["priorityQueue"] =
/******/ (function(modules) { // webpackBootstrap
/******/ // The module cache
/******/ var installedModules = {};
/******/
/******/ // The require function
/******/ function __webpack_require__(moduleId) {
/******/
/******/ // Check if module is in cache
/******/ if(installedModules[moduleId]) {
/******/ return installedModules[moduleId].exports;
/******/ }
/******/ // Create a new module (and put it into the cache)
/******/ var module = installedModules[moduleId] = {
/******/ i: moduleId,
/******/ l: false,
/******/ exports: {}
/******/ };
/******/
/******/ // Execute the module function
/******/ modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
/******/
/******/ // Flag the module as loaded
/******/ module.l = true;
/******/
/******/ // Return the exports of the module
/******/ return module.exports;
/******/ }
/******/
/******/
/******/ // expose the modules object (__webpack_modules__)
/******/ __webpack_require__.m = modules;
/******/
/******/ // expose the module cache
/******/ __webpack_require__.c = installedModules;
/******/
/******/ // define getter function for harmony exports
/******/ __webpack_require__.d = function(exports, name, getter) {
/******/ if(!__webpack_require__.o(exports, name)) {
/******/ Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ }
/******/ };
/******/
/******/ // define __esModule on exports
/******/ __webpack_require__.r = function(exports) {
/******/ if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ }
/******/ Object.defineProperty(exports, '__esModule', { value: true });
/******/ };
/******/
/******/ // create a fake namespace object
/******/ // mode & 1: value is a module id, require it
/******/ // mode & 2: merge all properties of value into the ns
/******/ // mode & 4: return value when already ns object
/******/ // mode & 8|1: behave like require
/******/ __webpack_require__.t = function(value, mode) {
/******/ if(mode & 1) value = __webpack_require__(value);
/******/ if(mode & 8) return value;
/******/ if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ var ns = Object.create(null);
/******/ __webpack_require__.r(ns);
/******/ Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ return ns;
/******/ };
/******/
/******/ // getDefaultExport function for compatibility with non-harmony modules
/******/ __webpack_require__.n = function(module) {
/******/ var getter = module && module.__esModule ?
/******/ function getDefault() { return module['default']; } :
/******/ function getModuleExports() { return module; };
/******/ __webpack_require__.d(getter, 'a', getter);
/******/ return getter;
/******/ };
/******/
/******/ // Object.prototype.hasOwnProperty.call
/******/ __webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ // __webpack_public_path__
/******/ __webpack_require__.p = "";
/******/
/******/
/******/ // Load entry module and return exports
/******/ return __webpack_require__(__webpack_require__.s = 332);
/******/ })
/************************************************************************/
/******/ ({
/***/ 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
};
};
/***/ })
/******/ });