lib/ajaxlibs/library.rb in ajaxlibs-0.1.0 vs lib/ajaxlibs/library.rb in ajaxlibs-0.1.1

@@ -5,11 +5,14 @@
 # and a few functions to generate either a filepath to local library or javascript loading code
 # for Google CDN.
 class Ajaxlibs::Library
   # Available versions for this library.
   Versions = []
+  Requirements = {}
   
+  attr_reader :version, :source
+  
   @@subclasses = {}
 
   def self.inherited(child) #:nodoc:
     @@subclasses[child.library_name.to_sym] = child
   end
@@ -17,25 +20,30 @@
   # Returns all available libraries (instance of Ajaxlibs::Library).
   def self.all
     @@subclasses.values
   end
   
-  # Search a specific library by its name, could by either a string or a symbol.
-  def self.by_name(name)
-    @@subclasses[name.to_sym].new
+  # Search a specific library by its name (could be either a string or a symbol) and initialized it with given version and source.
+  def self.by_name(name, options = {})
+    @@subclasses[name.to_sym].new options
   rescue NoMethodError
     raise Ajaxlibs::Exception::LibraryNotFound
   end
 
   # Library name based on class name
   def self.library_name
     name.match(/::(\w+)$/)[1].downcase
   end
   
+  def initialize(options = {})
+    @version  = check_version_or_latest_version(options[:version])
+    @source   = options[:source] || :local
+  end
+  
   # Returns requirements for a library (for example, prototype for scriptaculous)
   def requires
-    nil
+    self.class::Requirements[@version] || self.class::Requirements[:all]
   end
   
   # Library name based on class name
   def library_name
     self.class.library_name
@@ -50,16 +58,29 @@
   def latest_version
     self.class::Versions.max {|a, b| Ajaxlibs::VersionsTools.compare a, b}
   end
   
   # Local path for a particular version, or the latest if given version is nil.
-  def local_path(version = nil)
-    File.join('ajaxlibs', library_name, check_version_or_latest_version(version), file_name)
+  def local_path
+    File.join('ajaxlibs', library_name, version, file_name)
   end
   
-  # Javascript load code through google jsapi for a particular version, or the latest if given version is nil.
-  def google_cdn_load_code(version = nil)
-    "google.load('#{library_name}', '#{check_version_or_latest_version(version)}');"
+  # Include path using google CDN
+  def google_cdn_include_path
+    "http://ajax.googleapis.com/ajax/libs/#{library_name}/#{version}/#{file_name}.js"
+  end
+  
+  # Javascript include path regarding source (call either local_path or google_cdn_include_path)
+  def include_path
+    source == :local ? local_path : google_cdn_include_path
+  end
+  
+  def local_only?
+    false
+  end
+  
+  def ==(other)
+    self.class == other.class and self.version == other.version and self.source == other.source
   end
   
   private
   # Checks if given version is available for this library,
   # raises Ajaxlibs::Exception::VersionNotFound if not and returns it.
\ No newline at end of file