added support for symbols as selectors to the KVO module

README.md

@@ -291,13 +291,13 @@ class ExampleViewController < UIViewController
 	@label.text = ""
 	view.addSubview @label
 
-    observe(@label, "text") do |old_value, new_value|
+    observe(@label, :text) do |old_value, new_value|
       puts "Hello from viewDidLoad!"
     end
   end
 
   def viewDidAppear(animated)
-    observe(@label, "text") do |old_value, new_value|
+    observe(@label, :text) do |old_value, new_value|
       puts "Hello from viewDidAppear!"
     end
   end

motion/core/kvo.rb

@@ -1,14 +1,14 @@
 # Usage example:
 #
 # class ExampleViewController < UIViewController
-#     include BW::KVO
+#     include BubbleWrap::KVO
 #
 #     def viewDidLoad
 #         @label = UILabel.alloc.initWithFrame [[20,20],[280,44]]
 #         @label.text = ""
 #         view.addSubview @label
 #
-#         observe(@label, "text") do |old_value, new_value|
+#         observe(@label, :text) do |old_value, new_value|
 #             puts "Changed #{old_value} to #{new_value}"
 #         end
 #     end
@@ -48,24 +48,24 @@ def unobserve_all
 
     private
     def registered?(target, key_path)
-      !@targets.nil? && !@targets[target].nil? && @targets[target].has_key?(key_path)
+      !@targets.nil? && !@targets[target].nil? && @targets[target].has_key?(key_path.to_s)
     end
 
     def add_observer_block(target, key_path, &block)
       return if target.nil? || key_path.nil? || block.nil?
 
       @targets ||= {}
       @targets[target] ||= {}
-      @targets[target][key_path] ||= []
-      @targets[target][key_path] << block
+      @targets[target][key_path.to_s] ||= []
+      @targets[target][key_path.to_s] << block
     end
 
     def remove_observer_block(target, key_path)
       return if @targets.nil? || target.nil? || key_path.nil?
 
       key_paths = @targets[target]
-      if !key_paths.nil? && key_paths.has_key?(key_path)
-        key_paths.delete(key_path)
+      if !key_paths.nil? && key_paths.has_key?(key_path.to_s)
+        key_paths.delete(key_path.to_s)
       end
     end
 

spec/motion/core/kvo_spec.rb

@@ -16,15 +16,15 @@ def initialize
     # Test helper
 
     def observe_label(&block)
-      observe(@label, "text", &block)
+      observe(@label, :text, &block)
     end
 
     def observe_collection(&block)
-      observe(self, "items", &block)
+      observe(self, :items, &block)
     end
 
     def unobserve_label
-      unobserve(@label, "text")
+      unobserve(@label, :text)
     end
 
     #  def unobserve_all