102 lines
3.4 KiB
JavaScript
102 lines
3.4 KiB
JavaScript
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"use strict";
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var __extends = (this && this.__extends) || (function () {
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var extendStatics = function (d, b) {
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extendStatics = Object.setPrototypeOf ||
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({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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return extendStatics(d, b);
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}
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return function (d, b) {
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extendStatics(d, b);
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function __() { this.constructor = d; }
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d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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};
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})();
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Object.defineProperty(exports, "__esModule", { value: true });
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var Action_1 = require("./Action");
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var AsyncAction = (function (_super) {
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__extends(AsyncAction, _super);
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function AsyncAction(scheduler, work) {
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var _this = _super.call(this, scheduler, work) || this;
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_this.scheduler = scheduler;
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_this.work = work;
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_this.pending = false;
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return _this;
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}
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AsyncAction.prototype.schedule = function (state, delay) {
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if (delay === void 0) { delay = 0; }
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if (this.closed) {
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return this;
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}
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this.state = state;
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var id = this.id;
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var scheduler = this.scheduler;
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if (id != null) {
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this.id = this.recycleAsyncId(scheduler, id, delay);
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}
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this.pending = true;
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this.delay = delay;
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this.id = this.id || this.requestAsyncId(scheduler, this.id, delay);
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return this;
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};
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AsyncAction.prototype.requestAsyncId = function (scheduler, id, delay) {
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if (delay === void 0) { delay = 0; }
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return setInterval(scheduler.flush.bind(scheduler, this), delay);
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};
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AsyncAction.prototype.recycleAsyncId = function (scheduler, id, delay) {
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if (delay === void 0) { delay = 0; }
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if (delay !== null && this.delay === delay && this.pending === false) {
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return id;
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}
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clearInterval(id);
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return undefined;
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};
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AsyncAction.prototype.execute = function (state, delay) {
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if (this.closed) {
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return new Error('executing a cancelled action');
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}
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this.pending = false;
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var error = this._execute(state, delay);
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if (error) {
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return error;
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}
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else if (this.pending === false && this.id != null) {
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this.id = this.recycleAsyncId(this.scheduler, this.id, null);
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}
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};
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AsyncAction.prototype._execute = function (state, delay) {
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var errored = false;
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var errorValue = undefined;
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try {
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this.work(state);
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}
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catch (e) {
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errored = true;
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errorValue = !!e && e || new Error(e);
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}
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if (errored) {
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this.unsubscribe();
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return errorValue;
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}
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};
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AsyncAction.prototype._unsubscribe = function () {
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var id = this.id;
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var scheduler = this.scheduler;
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var actions = scheduler.actions;
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var index = actions.indexOf(this);
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this.work = null;
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this.state = null;
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this.pending = false;
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this.scheduler = null;
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if (index !== -1) {
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actions.splice(index, 1);
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}
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if (id != null) {
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this.id = this.recycleAsyncId(scheduler, id, null);
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}
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this.delay = null;
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};
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return AsyncAction;
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}(Action_1.Action));
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exports.AsyncAction = AsyncAction;
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//# sourceMappingURL=AsyncAction.js.map
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