是否有使用ngClick的AngularJS指令，该指令仅在触摸事件时触发？

Question

Is it possible to call a method only when the input was initiated through a touch screen? eg on the Surface Studio you have two possible input devices - mouse and touch screen.

I want to react differently based on the type of input device used. As far as I know, feature detection won't work as it only tells me if a device is capable of smth. But not if a specific action was called via touch screen.

Answer 1

I scribbled the following directive.

It's not even close to good but it perfectly fits my needs for now.

angular.module('app').directive('tap', function ($parse) {
    return {
        restrict: 'A',
        compile: function($element, attr) {    
            return function (scope, element) {    
                element.on('touchstart', function(event) {    
                    var callback = function() {
                        $parse(attr['tap'])(scope, {$event: event});
                    };    
                    scope.$apply(callback);    
                });    
            };    
        }
    };
});

Usage:

<a tap="mainCtrl.someTouchscreenAction()">Tap</a>

Maybe someone else will find it useful.