ionic-angular
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A powerful framework for building mobile and progressive web apps with JavaScript and Angular
78 lines • 2.95 kB
JavaScript
(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;
});
//# sourceMappingURL=gesture.js.map