re-map mouse to touch event and vice versa

gistfile1.js

(function () {
	var MOVE_THRESHOLD = 20;
	// 'tap'イベントをjQueryに登録
	$.event.special.tap = {
		setup: function() {
			var self = $(this);
			self.on('touchstart', function(e) {
				var moved = false,
					origTarget = e.target,
					origEvent = e.originalEvent,
					origPos = [origEvent.touches[0].pageX, origEvent.touches[0].pageY],
					originalType;

				// 指が動くかの確認
				function touchMoveHandler(e) {
					var newPageXY = e.originalEvent.touches[0],
						horizontalThreshold = (Math.abs(origPos[0] - newPageXY.pageX) > MOVE_THRESHOLD),
						verticalThreshold = (Math.abs(origPos[1] - newPageXY.pageY) > MOVE_THRESHOLD);

					if (horizontalThreshold || verticalThreshold) {
						moved = true;
					}
				}

				function touchEndHandler(e) {
					// cancel move event
					self.off('touchmove', origTarget, touchMoveHandler);

					// tapイベントを実行する
					if (!moved && (origTarget === e.target)) {
						originalType = e.type;
						e.type = 'tap';
						e.pageX = origPos[0];
						e.pageY = origPos[1];
						$.event.handle.call(self[0], e);
						e.type = originalType;
					}
				}

				// イベント登録
				self.on('touchmove', touchMoveHandler);
				self.one('touchend', touchEndHandler);
			});
		}
	};

	return $.fn.extend({
		ambTouch: function (event, selector, callback) {
			var self = this,
				toEvents,
				fromEvents,
				fromKey,
				supportTouch = ('ontouchstart' in window),
				touchEvents = ['touchstart', 'touchend', 'touchmove', 'tap'],
				mouseEvents = ['mousedown', 'mouseup', 'mousemove', 'click'];

			if (typeof selector === 'function') {
				callback = selector;
				selector = null;
			}

			if (supportTouch) {
				// mouseイベントtouchイベントにする場合(例: touchstart to mousedown)
				fromEvents = mouseEvents;
				toEvents = touchEvents;
			} else {
				// touchイベントmouseイベントにする場合(例: touchstart to mousedown)
				fromEvents = touchEvents;
				toEvents = mouseEvents;
			}

			// arrayキーによるイベントスイッチ
			fromKey = fromEvents.indexOf(event);
			if (fromKey !== -1) {
				event = toEvents[fromKey];
			}
			
			// スイッチされたイベントを登録
			self.on(event, selector, callback);
			return self;
		}
	});
}).call(this);

$(document).ambTouch('click', function() {});

turn to,

on PC:
$(document).on('click', function() {});

on Smart Phone where touch events exist:
$(document).on('tap', function() {});