@web-atoms/core/dist/core/AtomDispatcher.js

Web Atoms Core

System.register([], function (_export, _context) {
  "use strict";

  var AtomDispatcher;
  _export("AtomDispatcher", void 0);
  return {
    setters: [],
    execute: function () {
      _export("AtomDispatcher", AtomDispatcher = class AtomDispatcher {
        constructor() {
          this.head = null;
          this.tail = null;
        }
        onTimeout() {
          if (this.paused) {
            return;
          }
          if (!this.head) {
            return;
          }
          const item = this.head;
          this.head = item.next;
          item.next = null;
          if (!this.head) {
            this.tail = null;
          }
          item();
          setTimeout(() => {
            this.onTimeout();
          }, 1);
        }
        pause() {
          this.paused = true;
        }
        start() {
          this.paused = false;
          setTimeout(() => {
            this.onTimeout();
          }, 1);
        }
        callLater(f) {
          if (this.tail) {
            this.tail.next = f;
            this.tail = f;
          } else {
            this.head = f;
            this.tail = f;
          }
          if (!this.paused) {
            this.start();
          }
        }
        waitForAll() {
          return new Promise((resolve, reject) => {
            this.callLater(() => {
              resolve();
            });
          });
        }
      });
    }
  };
});
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