Tracked layers can now be queried directly for their focus boolean va…

…lue.

The engine now relies on this value rather than on the name of the layer's current state.
Debug statement will try to look for the layer's __framerInstanceInfo.name if no name is set.
Running the focus engine with no initial focus set now fails gracefully.

FocusEngine.coffee

@@ -52,6 +52,12 @@
 	layerA.on "unfocus", ->
 	layerA.on "selected", ->
 
+	# Check the currently focused layer
+	print fe.focus
+
+	# Check whether a layer has focus
+	print layerA.focus
+
 	# Integration with RemoteLayer (https://github.com/bpxl-labs/RemoteLayer)
 	RemoteLayer = require "RemoteLayer"
 	myRemote = new RemoteLayer
@@ -94,9 +100,9 @@ exports.unfocusStyle =
 exports.initialize = (focusableArray) ->
 	exports.focusable = focusableArray
 	for layer in exports.focusable
+		layer.focus = false
 		styleLayer(layer)
 
-
 # layer visibility
 checkVisible = (layer) ->
 	isVisible = true
@@ -125,13 +131,15 @@ exports.placeFocus = Utils.throttle 0.1, (layer = null) ->
 		exports.focus = layer
 		unfocusAll()
 		layer.emit "focus"
+		layer.focus = true
 		if layer != null and layer in exports.focusable
 			layer?.animate("focus")
 
 unfocusAll = () ->
 	for layer in exports.focusable
-		if layer.states.current.name == "focus"
+		if layer.focus == true
 			layer.emit "unfocus"
+			layer.focus = false
 			layer.animate("unfocus")
 
 exports.focusPrevious = () ->
@@ -140,6 +148,7 @@ exports.focusPrevious = () ->
 
 exports.addLayer = (layer) ->
 	exports.focusable.push(layer)
+	layer.focus = false
 	styleLayer(layer)
 
 styleLayer = (layer) ->
@@ -162,8 +171,12 @@ styleLayer = (layer) ->
 	layer.animate("unfocus", instant: true)
 
 exports.changeFocus = Utils.throttle 0.1, (direction) ->
+	# if focus was never placed, give up
+	if exports.focus == null and exports.initialFocus == null
+		print "No initial focus set. Use placeFocus(layer) to set."
+		return
 	if exports.debug == true
-		print "current: " + exports.focus?.name + "; direction: " + direction
+		print "focus was: " + (exports.focus?.name or exports.focus?.__framerInstanceInfo?.name or "unnamed layer") + "; direction: " + direction
 	tempArray = []
 	# if we've lost all focus, reset
 	if exports.focus == null or exports.focus == undefined

README.md

@@ -121,6 +121,16 @@ myRemote = new RemoteLayer
 fe.debug = true
 ```
 
+#### Check the currently focused layer
+```coffeescript
+print fe.focus
+```
+
+#### Check whether a layer has focus
+```coffeescript
+print layerA.focus
+```
+
 #### Known issues
 
 Attempting to perform a `placeFocus()` call as FocusEngine is changing its own focus will fail. (The call is discarded.) If you need to override FocusEngine's logic, Use a slight delay to ensure the call is respected.