Initial import

app/helpers/application_helper.rb

@@ -0,0 +1,65 @@
+# Engenharia de Software 2007.1
+# Copyright (C) 2007, Adriano, Alinson, Andre, Rafael e Bustamante
+# 
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# at your option) any later version.
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+require 'digest/md5'
+
+module ApplicationHelper
+
+	# Converte para o timezone local
+	def tz(time_at)
+		TzTime.zone.utc_to_local(time_at.utc)
+	end
+
+	FLASH_NAMES = [:notice, :warning, :message]	
+
+	def flash_div
+		output = ""
+		for name in FLASH_NAMES
+			if flash[name]
+				output << "<div id='validation' class='validation #{name}' style='display: none'>#{flash[name]}"
+				output << ". " + link_to("Undo"[] + "?", flash[:undo], :method => 'post') if flash[:undo]
+				output << "</div>"
+			end
+		end
+		return output
+	end
+
+	def logged_in?
+		session[:user_id]
+	end
+
+	def current_user
+		User.find(session[:user_id]) if logged_in?
+	end
+
+	def admin?
+		logged_in? and current_user.admin?
+	end
+
+	def wiki(text)
+		BlueCloth.new(text).to_html
+	end
+
+	def highlight(name)
+		return {:class => 'highlight'} if (flash[:highlight] == name) 
+	end
+
+	def gravatar_url_for(email, size=80)
+		"http://www.gravatar.com/avatar.php?gravatar_id=#{Digest::MD5.hexdigest(email)}&size=#{size}&default=#{App.default_avatar}"
+	end
+
+	def action_icon(action_name, description, options = {}, html_options = {})
+		html_options.merge!({:class => 'icon', :alt => description, :title => description})
+		link_to(image_tag("action/#{action_name}.gif"), options, html_options)
+	end
+end