1 | /** PURE_IMPORTS_START tslib,_Subject,_OuterSubscriber,_util_subscribeToResult PURE_IMPORTS_END */
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2 | import * as tslib_1 from "tslib";
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3 | import { Subject } from '../Subject';
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4 | import { OuterSubscriber } from '../OuterSubscriber';
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5 | import { subscribeToResult } from '../util/subscribeToResult';
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6 | export function windowWhen(closingSelector) {
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7 | return function windowWhenOperatorFunction(source) {
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8 | return source.lift(new WindowOperator(closingSelector));
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9 | };
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10 | }
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11 | var WindowOperator = /*@__PURE__*/ (function () {
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12 | function WindowOperator(closingSelector) {
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13 | this.closingSelector = closingSelector;
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14 | }
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15 | WindowOperator.prototype.call = function (subscriber, source) {
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16 | return source.subscribe(new WindowSubscriber(subscriber, this.closingSelector));
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17 | };
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18 | return WindowOperator;
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19 | }());
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20 | var WindowSubscriber = /*@__PURE__*/ (function (_super) {
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21 | tslib_1.__extends(WindowSubscriber, _super);
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22 | function WindowSubscriber(destination, closingSelector) {
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23 | var _this = _super.call(this, destination) || this;
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24 | _this.destination = destination;
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25 | _this.closingSelector = closingSelector;
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26 | _this.openWindow();
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27 | return _this;
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28 | }
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29 | WindowSubscriber.prototype.notifyNext = function (_outerValue, _innerValue, _outerIndex, _innerIndex, innerSub) {
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30 | this.openWindow(innerSub);
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31 | };
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32 | WindowSubscriber.prototype.notifyError = function (error) {
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33 | this._error(error);
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34 | };
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35 | WindowSubscriber.prototype.notifyComplete = function (innerSub) {
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36 | this.openWindow(innerSub);
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37 | };
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38 | WindowSubscriber.prototype._next = function (value) {
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39 | this.window.next(value);
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40 | };
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41 | WindowSubscriber.prototype._error = function (err) {
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42 | this.window.error(err);
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43 | this.destination.error(err);
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44 | this.unsubscribeClosingNotification();
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45 | };
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46 | WindowSubscriber.prototype._complete = function () {
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47 | this.window.complete();
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48 | this.destination.complete();
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49 | this.unsubscribeClosingNotification();
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50 | };
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51 | WindowSubscriber.prototype.unsubscribeClosingNotification = function () {
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52 | if (this.closingNotification) {
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53 | this.closingNotification.unsubscribe();
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54 | }
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55 | };
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56 | WindowSubscriber.prototype.openWindow = function (innerSub) {
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57 | if (innerSub === void 0) {
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58 | innerSub = null;
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59 | }
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60 | if (innerSub) {
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61 | this.remove(innerSub);
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62 | innerSub.unsubscribe();
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63 | }
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64 | var prevWindow = this.window;
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65 | if (prevWindow) {
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66 | prevWindow.complete();
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67 | }
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68 | var window = this.window = new Subject();
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69 | this.destination.next(window);
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70 | var closingNotifier;
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71 | try {
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72 | var closingSelector = this.closingSelector;
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73 | closingNotifier = closingSelector();
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74 | }
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75 | catch (e) {
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76 | this.destination.error(e);
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77 | this.window.error(e);
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78 | return;
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79 | }
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80 | this.add(this.closingNotification = subscribeToResult(this, closingNotifier));
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81 | };
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82 | return WindowSubscriber;
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83 | }(OuterSubscriber));
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84 | //# sourceMappingURL=windowWhen.js.map
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