Shared-Travel-Map-Front-End/node_modules/ionic-angular/umd/gestures/gesture.js

(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define(["require", "exports", "../util/util", "./hammer"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    var util_1 = require("../util/util");
    var hammer_1 = require("./hammer");
    /**
     * @hidden
     * A gesture recognizer class.
     *
     * TODO(mlynch): Re-enable the DOM event simulation that was causing issues (or verify hammer does this already, it might);
     */
    var Gesture = (function () {
        function Gesture(element, opts) {
            if (opts === void 0) { opts = {}; }
            this._callbacks = {};
            this.isListening = false;
            util_1.defaults(opts, {
                domEvents: true
            });
            this.element = element;
            // Map 'x' or 'y' string to hammerjs opts
            this.direction = opts.direction || 'x';
            opts.direction = this.direction === 'x' ?
                hammer_1.DIRECTION_HORIZONTAL :
                hammer_1.DIRECTION_VERTICAL;
            this._options = opts;
        }
        Gesture.prototype.options = function (opts) {
            Object.assign(this._options, opts);
        };
        Gesture.prototype.on = function (type, cb) {
            if (type === 'pinch' || type === 'rotate') {
                this._hammer.get(type).set({ enable: true });
            }
            this._hammer.on(type, cb);
            (this._callbacks[type] || (this._callbacks[type] = [])).push(cb);
        };
        Gesture.prototype.off = function (type, cb) {
            this._hammer.off(type, this._callbacks[type] ? cb : null);
        };
        Gesture.prototype.listen = function () {
            if (!this.isListening) {
                this._hammer = hammer_1.Hammer(this.element, this._options);
            }
            this.isListening = true;
        };
        Gesture.prototype.unlisten = function () {
            var eventType;
            var i;
            if (this._hammer && this.isListening) {
                for (eventType in this._callbacks) {
                    for (i = 0; i < this._callbacks[eventType].length; i++) {
                        this._hammer.off(eventType, this._callbacks[eventType]);
                    }
                }
                this._hammer.destroy();
            }
            this._callbacks = {};
            this._hammer = null;
            this.isListening = false;
        };
        Gesture.prototype.destroy = function () {
            this.unlisten();
            this.element = this._options = null;
        };
        return Gesture;
    }());
    exports.Gesture = Gesture;
});
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