Adding JS2.Obeservable

CHANGELOG

@@ -1,3 +1,6 @@
+## Version 0.1.8
+* Adding JS2.Observable module to boostrap
+
 ## Version 0.1.7
 * Support for Ruby 1.9.x
 

README.md

@@ -1,8 +1,6 @@
 [JS2](http://github.com/jeffsu/js2) - Friendly Cross Browser Object Oriented Javascript
 =======================================================================================
 
-Friendly Cross Browser Object Oriented Javascript
--------------------------------------------------
 JS2 is a way to write classes in a more familiar way for programmers who are used to syntax in languages such as: Java, Ruby, C++, etc...
 The main motivation is to provide a clean and a less verbose syntax for creating classes, inheritance and modules in Javascript.  JS2 plays
 nicely with most of the popular frameworks including: jQuery and prototype.  It also provides some syntactic sugar on the repetative aspects
@@ -39,8 +37,8 @@ Things You need to run JS2
   * RubyInline
   * haml (optional)
 
-Quick Start
------------
+Quick Start Guide
+-----------------
 Create a js2 file (foo.js2):
     class Person {
       function speak() {

Rakefile

@@ -2,7 +2,7 @@ require 'rubygems'
 require 'rake'
 require 'echoe'
 
-JS2_VERSION = '0.1.7'
+JS2_VERSION = '0.1.8'
 Echoe.new('js2', JS2_VERSION) do |p|
   p.description    = ""
   p.url            = "http://github.com/jeffsu/js2"

js2.gemspec

@@ -2,11 +2,11 @@
 
 Gem::Specification.new do |s|
   s.name = %q{js2}
-  s.version = "0.1.7"
+  s.version = "0.1.8"
 
   s.required_rubygems_version = Gem::Requirement.new(">= 1.2") if s.respond_to? :required_rubygems_version=
   s.authors = ["Jeff Su"]
-  s.date = %q{2010-10-08}
+  s.date = %q{2010-10-21}
   s.default_executable = %q{js2}
   s.description = %q{}
   s.email = %q{me@jeffsu.com}

lib/js2/util/js2bootstrap.js2

@@ -399,3 +399,50 @@ class JS2.App.JQuery extends JS2.App {
   }
 }
 
+module JS2.Observable {
+  function addListener (namespace, funct) {
+    this._initializeObservable(namespace);
+
+    var id    = this._listenerCount++;
+    var chain = this._listeners[namespace];
+    var index = chain.length;
+    var info  = [ funct, id, namespace ];
+
+    this._listenerLookup[id.toString()] = info;
+    chain.push(info);
+  }
+
+  function trigger () {
+    if (! this._listeners) return;
+
+    var namespace = arguments[0];
+    var chain = this._listeners[namespace];
+    if (! chain) return;
+
+    var args = [];
+    for (var i=1; i<arguments.length; i++) {
+      args.push(arguments[i]);
+    }
+
+    if (chain) {
+      foreach (var ele in chain) {
+        ele[0].apply(this, args);
+      }
+    }
+  }
+
+  private
+
+  function _initializeObservable (namespace) {
+    if (! this._listeners) {
+      this._listeners      = {};
+      this._listenerLookup = {};
+      this._listenerCount  = 1;
+    }
+
+    if (! this._listeners[namespace]) {
+      this._listeners[namespace] = [];
+    }
+  }
+}
+