80 lines
3.6 KiB
JavaScript
80 lines
3.6 KiB
JavaScript
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"use strict";
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var __extends = (this && this.__extends) || function (d, b) {
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for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p];
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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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var Observable_1 = require('../Observable');
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var tryCatch_1 = require('../util/tryCatch');
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var errorObject_1 = require('../util/errorObject');
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var Subscription_1 = require('../Subscription');
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function isNodeStyleEventEmmitter(sourceObj) {
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return !!sourceObj && typeof sourceObj.addListener === 'function' && typeof sourceObj.removeListener === 'function';
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}
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function isJQueryStyleEventEmitter(sourceObj) {
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return !!sourceObj && typeof sourceObj.on === 'function' && typeof sourceObj.off === 'function';
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}
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function isNodeList(sourceObj) {
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return !!sourceObj && sourceObj.toString() === '[object NodeList]';
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}
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function isHTMLCollection(sourceObj) {
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return !!sourceObj && sourceObj.toString() === '[object HTMLCollection]';
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}
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function isEventTarget(sourceObj) {
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return !!sourceObj && typeof sourceObj.addEventListener === 'function' && typeof sourceObj.removeEventListener === 'function';
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}
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var FromEventObservable = (function (_super) {
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__extends(FromEventObservable, _super);
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function FromEventObservable(sourceObj, eventName, selector) {
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_super.call(this);
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this.sourceObj = sourceObj;
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this.eventName = eventName;
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this.selector = selector;
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}
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FromEventObservable.create = function (sourceObj, eventName, selector) {
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return new FromEventObservable(sourceObj, eventName, selector);
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};
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FromEventObservable.setupSubscription = function (sourceObj, eventName, handler, subscriber) {
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var unsubscribe;
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if (isNodeList(sourceObj) || isHTMLCollection(sourceObj)) {
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for (var i = 0, len = sourceObj.length; i < len; i++) {
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FromEventObservable.setupSubscription(sourceObj[i], eventName, handler, subscriber);
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}
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}
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else if (isEventTarget(sourceObj)) {
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sourceObj.addEventListener(eventName, handler);
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unsubscribe = function () { return sourceObj.removeEventListener(eventName, handler); };
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}
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else if (isJQueryStyleEventEmitter(sourceObj)) {
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sourceObj.on(eventName, handler);
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unsubscribe = function () { return sourceObj.off(eventName, handler); };
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}
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else if (isNodeStyleEventEmmitter(sourceObj)) {
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sourceObj.addListener(eventName, handler);
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unsubscribe = function () { return sourceObj.removeListener(eventName, handler); };
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}
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subscriber.add(new Subscription_1.Subscription(unsubscribe));
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};
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FromEventObservable.prototype._subscribe = function (subscriber) {
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var sourceObj = this.sourceObj;
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var eventName = this.eventName;
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var selector = this.selector;
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var handler = selector ? function () {
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var args = [];
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for (var _i = 0; _i < arguments.length; _i++) {
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args[_i - 0] = arguments[_i];
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}
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var result = tryCatch_1.tryCatch(selector).apply(void 0, args);
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if (result === errorObject_1.errorObject) {
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subscriber.error(errorObject_1.errorObject.e);
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}
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else {
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subscriber.next(result);
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}
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} : function (e) { return subscriber.next(e); };
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FromEventObservable.setupSubscription(sourceObj, eventName, handler, subscriber);
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};
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return FromEventObservable;
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}(Observable_1.Observable));
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exports.FromEventObservable = FromEventObservable;
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//# sourceMappingURL=FromEventObservable.js.map
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