Repositorio del curso CCOM4030 el semestre B91 del proyecto Artesanías con el Instituto de Cultura

debounce.js 3.3KB

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  1. "use strict";
  2. var __extends = (this && this.__extends) || (function () {
  3. var extendStatics = function (d, b) {
  4. extendStatics = Object.setPrototypeOf ||
  5. ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
  6. function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
  7. return extendStatics(d, b);
  8. }
  9. return function (d, b) {
  10. extendStatics(d, b);
  11. function __() { this.constructor = d; }
  12. d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
  13. };
  14. })();
  15. Object.defineProperty(exports, "__esModule", { value: true });
  16. var innerSubscribe_1 = require("../innerSubscribe");
  17. function debounce(durationSelector) {
  18. return function (source) { return source.lift(new DebounceOperator(durationSelector)); };
  19. }
  20. exports.debounce = debounce;
  21. var DebounceOperator = (function () {
  22. function DebounceOperator(durationSelector) {
  23. this.durationSelector = durationSelector;
  24. }
  25. DebounceOperator.prototype.call = function (subscriber, source) {
  26. return source.subscribe(new DebounceSubscriber(subscriber, this.durationSelector));
  27. };
  28. return DebounceOperator;
  29. }());
  30. var DebounceSubscriber = (function (_super) {
  31. __extends(DebounceSubscriber, _super);
  32. function DebounceSubscriber(destination, durationSelector) {
  33. var _this = _super.call(this, destination) || this;
  34. _this.durationSelector = durationSelector;
  35. _this.hasValue = false;
  36. return _this;
  37. }
  38. DebounceSubscriber.prototype._next = function (value) {
  39. try {
  40. var result = this.durationSelector.call(this, value);
  41. if (result) {
  42. this._tryNext(value, result);
  43. }
  44. }
  45. catch (err) {
  46. this.destination.error(err);
  47. }
  48. };
  49. DebounceSubscriber.prototype._complete = function () {
  50. this.emitValue();
  51. this.destination.complete();
  52. };
  53. DebounceSubscriber.prototype._tryNext = function (value, duration) {
  54. var subscription = this.durationSubscription;
  55. this.value = value;
  56. this.hasValue = true;
  57. if (subscription) {
  58. subscription.unsubscribe();
  59. this.remove(subscription);
  60. }
  61. subscription = innerSubscribe_1.innerSubscribe(duration, new innerSubscribe_1.SimpleInnerSubscriber(this));
  62. if (subscription && !subscription.closed) {
  63. this.add(this.durationSubscription = subscription);
  64. }
  65. };
  66. DebounceSubscriber.prototype.notifyNext = function () {
  67. this.emitValue();
  68. };
  69. DebounceSubscriber.prototype.notifyComplete = function () {
  70. this.emitValue();
  71. };
  72. DebounceSubscriber.prototype.emitValue = function () {
  73. if (this.hasValue) {
  74. var value = this.value;
  75. var subscription = this.durationSubscription;
  76. if (subscription) {
  77. this.durationSubscription = undefined;
  78. subscription.unsubscribe();
  79. this.remove(subscription);
  80. }
  81. this.value = undefined;
  82. this.hasValue = false;
  83. _super.prototype._next.call(this, value);
  84. }
  85. };
  86. return DebounceSubscriber;
  87. }(innerSubscribe_1.SimpleOuterSubscriber));
  88. //# sourceMappingURL=debounce.js.map