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keksAccountGUI/node_modulesOLD/rxjs/internal/observable/fromEventPattern.js
2019-08-11 20:48:02 +02:00

34 lines
No EOL
1.3 KiB
JavaScript

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