Added preliminary support for undocumented fit attribute

Author: Rick Huizinga

src/coffee/directives/polygon.coffee

@@ -59,6 +59,7 @@ angular.module("google-maps")
         static: "="
         events: "="
         zIndex: "=zindex"
+        fit: "="
 
     link: (scope, element, attrs, mapCtrl) ->
 
@@ -86,6 +87,7 @@ angular.module("google-maps")
                     geodesic: false
                     visible: true
                     static: false
+                    fit: false
                     zIndex: 0
                 , (defaultValue, key) ->
                     if angular.isUndefined(scope[key]) or scope[key] is null
@@ -100,9 +102,8 @@ angular.module("google-maps")
             pathPoints = GmapUtil.convertPathPoints(scope.path)
             polygon = new google.maps.Polygon(buildOpts(pathPoints))
             # The fit attribute is undocumented as it currently does not
-            # properly work when changes to the path are made.  arraySync
-            # needs to be upgraded to support this.
-            GmapUtil.extendMapBounds map, pathPoints  if isTrue(attrs.fit)
+            # properly work when changes to the path are made.
+            GmapUtil.extendMapBounds map, pathPoints  if scope.fit
 
             if !scope.static and angular.isDefined(scope.editable)
                 scope.$watch "editable", (newValue, oldValue) ->
@@ -154,6 +155,13 @@ angular.module("google-maps")
                     polygon.addListener eventName, getEventHandler(eventName)  if scope.events.hasOwnProperty(eventName) and angular.isFunction(scope.events[eventName])
 
             arraySyncer = arraySync(polygon.getPath(), scope, "path")
+            
+            # To properly support the undocumented fit attribute,
+            # array-sync needs to be upgraded to have an optional pathChanged callback
+            # function that is called with the path points whenever they have been changed.            
+            #arraySyncer = arraySync(polygon.getPath(), scope, "path", (pathPoints) ->
+            #  GmapUtil.extendMapBounds map, pathPoints  if scope.fit
+            #)
 
             # Remove polygon on scope $destroy
             scope.$on "$destroy", ->