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style(platform-browser): clean up hammer gestures

This commit is contained in:
Joao Dias 2016-10-30 22:27:03 +01:00 committed by vsavkin
parent bad58824a0
commit 579deeb9c5
1 changed files with 6 additions and 8 deletions
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14
modules/@angular/platform-browser/src/dom/events/hammer_gestures.ts
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@ -8,8 +8,6 @@
import {Inject, Injectable, OpaqueToken} from '@angular/core';
import {isPresent} from '../../facade/lang';
import {HammerGesturesPluginCommon} from './hammer_common';
/**
@ -35,7 +33,7 @@ export class HammerGestureConfig {
overrides: {[key: string]: Object} = {};
buildHammer(element: HTMLElement): HammerInstance {
var mc = new Hammer(element);
const mc = new Hammer(element);
mc.get('pinch').set({enable: true});
mc.get('rotate').set({enable: true});
@ -55,7 +53,7 @@ export class HammerGesturesPlugin extends HammerGesturesPluginCommon {
supports(eventName: string): boolean {
if (!super.supports(eventName) && !this.isCustomEvent(eventName)) return false;
if (!isPresent((window as any /** TODO #???? */)['Hammer'])) {
if (!(window as any).Hammer) {
throw new Error(`Hammer.js is not loaded, can not bind ${eventName} event`);
}
@ -63,17 +61,17 @@ export class HammerGesturesPlugin extends HammerGesturesPluginCommon {
}
addEventListener(element: HTMLElement, eventName: string, handler: Function): Function {
var zone = this.manager.getZone();
const zone = this.manager.getZone();
eventName = eventName.toLowerCase();
return zone.runOutsideAngular(() => {
// Creating the manager bind events, must be done outside of angular
var mc = this._config.buildHammer(element);
var callback = function(eventObj: any /** TODO #???? */) {
const mc = this._config.buildHammer(element);
const callback = function(eventObj: HammerInput) {
zone.runGuarded(function() { handler(eventObj); });
};
mc.on(eventName, callback);
return () => { mc.off(eventName, callback); };
return () => mc.off(eventName, callback);
});
}