78 lines
3.2 KiB
JavaScript
78 lines
3.2 KiB
JavaScript
"use strict";
|
|
var __read = (this && this.__read) || function (o, n) {
|
|
var m = typeof Symbol === "function" && o[Symbol.iterator];
|
|
if (!m) return o;
|
|
var i = m.call(o), r, ar = [], e;
|
|
try {
|
|
while ((n === void 0 || n-- > 0) && !(r = i.next()).done) ar.push(r.value);
|
|
}
|
|
catch (error) { e = { error: error }; }
|
|
finally {
|
|
try {
|
|
if (r && !r.done && (m = i["return"])) m.call(i);
|
|
}
|
|
finally { if (e) throw e.error; }
|
|
}
|
|
return ar;
|
|
};
|
|
Object.defineProperty(exports, "__esModule", { value: true });
|
|
exports.fromEvent = void 0;
|
|
var innerFrom_1 = require("../observable/innerFrom");
|
|
var Observable_1 = require("../Observable");
|
|
var mergeMap_1 = require("../operators/mergeMap");
|
|
var isArrayLike_1 = require("../util/isArrayLike");
|
|
var isFunction_1 = require("../util/isFunction");
|
|
var mapOneOrManyArgs_1 = require("../util/mapOneOrManyArgs");
|
|
var nodeEventEmitterMethods = ['addListener', 'removeListener'];
|
|
var eventTargetMethods = ['addEventListener', 'removeEventListener'];
|
|
var jqueryMethods = ['on', 'off'];
|
|
function fromEvent(target, eventName, options, resultSelector) {
|
|
if (isFunction_1.isFunction(options)) {
|
|
resultSelector = options;
|
|
options = undefined;
|
|
}
|
|
if (resultSelector) {
|
|
return fromEvent(target, eventName, options).pipe(mapOneOrManyArgs_1.mapOneOrManyArgs(resultSelector));
|
|
}
|
|
var _a = __read(isEventTarget(target)
|
|
? eventTargetMethods.map(function (methodName) { return function (handler) { return target[methodName](eventName, handler, options); }; })
|
|
:
|
|
isNodeStyleEventEmitter(target)
|
|
? nodeEventEmitterMethods.map(toCommonHandlerRegistry(target, eventName))
|
|
: isJQueryStyleEventEmitter(target)
|
|
? jqueryMethods.map(toCommonHandlerRegistry(target, eventName))
|
|
: [], 2), add = _a[0], remove = _a[1];
|
|
if (!add) {
|
|
if (isArrayLike_1.isArrayLike(target)) {
|
|
return mergeMap_1.mergeMap(function (subTarget) { return fromEvent(subTarget, eventName, options); })(innerFrom_1.innerFrom(target));
|
|
}
|
|
}
|
|
if (!add) {
|
|
throw new TypeError('Invalid event target');
|
|
}
|
|
return new Observable_1.Observable(function (subscriber) {
|
|
var handler = function () {
|
|
var args = [];
|
|
for (var _i = 0; _i < arguments.length; _i++) {
|
|
args[_i] = arguments[_i];
|
|
}
|
|
return subscriber.next(1 < args.length ? args : args[0]);
|
|
};
|
|
add(handler);
|
|
return function () { return remove(handler); };
|
|
});
|
|
}
|
|
exports.fromEvent = fromEvent;
|
|
function toCommonHandlerRegistry(target, eventName) {
|
|
return function (methodName) { return function (handler) { return target[methodName](eventName, handler); }; };
|
|
}
|
|
function isNodeStyleEventEmitter(target) {
|
|
return isFunction_1.isFunction(target.addListener) && isFunction_1.isFunction(target.removeListener);
|
|
}
|
|
function isJQueryStyleEventEmitter(target) {
|
|
return isFunction_1.isFunction(target.on) && isFunction_1.isFunction(target.off);
|
|
}
|
|
function isEventTarget(target) {
|
|
return isFunction_1.isFunction(target.addEventListener) && isFunction_1.isFunction(target.removeEventListener);
|
|
}
|
|
//# sourceMappingURL=fromEvent.js.map
|