34 lines
1.3 KiB
JavaScript
34 lines
1.3 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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var Observable_1 = require("../Observable");
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var isArray_1 = require("../util/isArray");
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var isFunction_1 = require("../util/isFunction");
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var map_1 = require("../operators/map");
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function fromEventPattern(addHandler, removeHandler, resultSelector) {
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if (resultSelector) {
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return fromEventPattern(addHandler, removeHandler).pipe(map_1.map(function (args) { return isArray_1.isArray(args) ? resultSelector.apply(void 0, args) : resultSelector(args); }));
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}
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return new Observable_1.Observable(function (subscriber) {
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var handler = function () {
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var e = [];
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for (var _i = 0; _i < arguments.length; _i++) {
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e[_i] = arguments[_i];
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}
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return subscriber.next(e.length === 1 ? e[0] : e);
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};
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var retValue;
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try {
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retValue = addHandler(handler);
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}
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catch (err) {
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subscriber.error(err);
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return undefined;
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}
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if (!isFunction_1.isFunction(removeHandler)) {
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return undefined;
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}
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return function () { return removeHandler(handler, retValue); };
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});
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}
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exports.fromEventPattern = fromEventPattern;
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//# sourceMappingURL=fromEventPattern.js.map
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