react-event-injector/dist/es2015/eventManager.js

React way to addEventListener

var __assign = (this && this.__assign) || Object.assign || function(t) {
    for (var s, i = 1, n = arguments.length; i < n; i++) {
        s = arguments[i];
        for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
            t[p] = s[p];
    }
    return t;
};
import { isPassiveSupported } from "./flags";
import { addEventListener, removeEventListener } from "./eventListeners";
;
var EMPTY = {};
var WITH_CAPTURE = { capture: true };
var FLAG_PC = { capture: true, passive: true };
var FLAG_P = { passive: true };
var FLAG_C = { capture: true, passive: false };
var asOption = function (_a) {
    var passive = _a.passive, capture = _a.capture;
    if (!isPassiveSupported) {
        return !!capture;
    }
    if (!passive && !capture) {
        return false;
    }
    if (passive && capture) {
        return FLAG_PC;
    }
    if (passive) {
        return FLAG_P;
    }
    if (passive === false) {
        return FLAG_C;
    }
    return true;
};
export function getEventNames(names) {
    return Object
        .keys(names)
        .filter(function (name) { return name.indexOf('on') === 0; });
}
;
export var forEventsIn = function (events, cb) {
    events.forEach(function (event) {
        var name = event.name;
        var lowerName = name.toLowerCase();
        var capture = lowerName.substr(-7) === 'capture';
        var eventName = lowerName.substring(2);
        eventName = capture ? eventName.substring(0, eventName.length - 7) : eventName;
        cb(eventName, event.cb, capture ? WITH_CAPTURE : {}, event.options === true ? WITH_CAPTURE : event.options || EMPTY);
    });
};
export var attach = function (ref, events) {
    forEventsIn(events, function (name, cb, options, settings) { return addEventListener(ref, name, cb, asOption(__assign({}, settings, options))); });
};
export var detach = function (ref, events) {
    forEventsIn(events, function (name, cb, options, settings) { return removeEventListener(ref, name, cb, asOption(__assign({}, settings, options))); });
};