Make touch emulator less prone to state bugs

By continously listening to events, rather then binding and unbinding all the time.

framer/Extras/TouchEmulator.coffee

@@ -52,8 +52,10 @@ class TouchEmulator extends BaseClass
		@wrap = @context.domEventManager.wrap
		
		@wrap(document).addEventListener("mousedown", @mousedown, true)
		@wrap(document).addEventListener("mousemove", @mousemovePosition, true)
		@wrap(document).addEventListener("mousemove", @mousemove, true)
		@wrap(document).addEventListener("mouseup", @mouseup, true)
		@wrap(document).addEventListener("keydown", @keydown, true)
		@wrap(document).addEventListener("keyup", @keyup, true)
		@wrap(document).addEventListener("mouseout", @mouseout, true)
		
		@isMouseDown = false
@@ -83,8 +85,6 @@ class TouchEmulator extends BaseClass
			@showTouchCursor()
			@touchPointLayer.midX = @point.x
			@touchPointLayer.midY = @point.y
			@wrap(document).addEventListener("keyup", @keyup, true)
			@wrap(document).addEventListener("mousemove", @mousemove, true)
			
		if event.keyCode is @keyPanCode
			@isPanKeyDown = true
@@ -96,8 +96,6 @@ class TouchEmulator extends BaseClass
			cancelEvent(event)	
			@isPinchKeyDown = false
			@hideTouchCursor()
			
			@wrap(document).removeEventListener("mousemove", @mousemove, true)
		
		if event.keyCode is @keyPanCode
			cancelEvent(event)
@@ -107,15 +105,12 @@ class TouchEmulator extends BaseClass
			

	mousedown: (event) =>
	

		cancelEvent(event)
		
		@isMouseDown = true
		@target = event.target
			
		@wrap(document).addEventListener("mousemove", @mousemove, true)
		@wrap(document).addEventListener("mouseup", @mouseup, true)

		if @isPinchKeyDown
			dispatchTouchEvent("touchstart", @target, event, @touchPointDelta)
		else
@@ -124,13 +119,13 @@ class TouchEmulator extends BaseClass
		@touchPointLayer.image = @touchPointerImageActive
	
	mousemove: (event) =>
		
		cancelEvent(event)

		@point =
			x: event.pageX
			y: event.pageY

		cancelEvent(event)

		@startPoint ?= @point 
		@centerPoint ?= @point
		
@@ -149,10 +144,11 @@ class TouchEmulator extends BaseClass
				@touchPointLayer.midX = @touchPoint.x
				@touchPointLayer.midY = @touchPoint.y
	
		if (@isPinchKeyDown or @isPanKeyDown) and @touchPointDelta
			dispatchTouchEvent("touchmove", @target, event, @touchPointDelta)
		else
			dispatchTouchEvent("touchmove", @target, event)
		if @isMouseDown
			if (@isPinchKeyDown or @isPanKeyDown) and @touchPointDelta
				dispatchTouchEvent("touchmove", @target, event, @touchPointDelta)
			else
				dispatchTouchEvent("touchmove", @target, event)

	mouseup: (event) =>
			
@@ -204,10 +200,6 @@ class TouchEmulator extends BaseClass
			y: event.pageY

	endMultiTouch: ->

		@wrap(document).removeEventListener("mousemove", @mousemove, true)
		@wrap(document).removeEventListener("mouseup", @mouseup, true)
		
		@isMouseDown = false
		@touchPointLayer.image = @touchPointerImage
		@hideTouchCursor()