UiConfig plugin

plugins/UiConfig/media/js/lib/Promise.coffee

@@ -0,0 +1,74 @@
+# From: http://dev.bizo.com/2011/12/promises-in-javascriptcoffeescript.html
+
+class Promise
+	@when: (tasks...) ->
+		num_uncompleted = tasks.length
+		args = new Array(num_uncompleted)
+		promise = new Promise()
+
+		for task, task_id in tasks
+			((task_id) ->
+				task.then(() ->
+					args[task_id] = Array.prototype.slice.call(arguments)
+					num_uncompleted--
+					promise.complete.apply(promise, args) if num_uncompleted == 0
+				)
+			)(task_id)
+
+		return promise
+
+	constructor: ->
+		@resolved = false
+		@end_promise = null
+		@result = null
+		@callbacks = []
+
+	resolve: ->
+		if @resolved
+			return false
+		@resolved = true
+		@data = arguments
+		if not arguments.length
+			@data = [true]
+		@result = @data[0]
+		for callback in @callbacks
+			back = callback.apply callback, @data
+		if @end_promise
+			@end_promise.resolve(back)
+
+	fail: ->
+		@resolve(false)
+
+	then: (callback) ->
+		if @resolved == true
+			callback.apply callback, @data
+			return
+
+		@callbacks.push callback
+
+		@end_promise = new Promise()
+
+window.Promise = Promise
+
+###
+s = Date.now()
+log = (text) ->
+	console.log Date.now()-s, Array.prototype.slice.call(arguments).join(", ")
+
+log "Started"
+
+cmd = (query) ->
+	p = new Promise()
+	setTimeout ( ->
+		p.resolve query+" Result"
+	), 100
+	return p
+
+back = cmd("SELECT * FROM message").then (res) ->
+	log res
+	return "Return from query"
+.then (res) ->
+	log "Back then", res
+
+log "Query started", back
+###