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	git-svn-id: http://redmine.rubyforge.org/svn/trunk@897 e93f8b46-1217-0410-a6f0-8f06a7374b81
		
			
				
	
	
		
			82 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			82 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| # redMine - project management software
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| # Copyright (C) 2006-2007  Jean-Philippe Lang
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| #
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| # This program is free software; you can redistribute it and/or
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| # modify it under the terms of the GNU General Public License
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| # as published by the Free Software Foundation; either version 2
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| # of the License, or (at your option) any later version.
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| # 
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| # This program is distributed in the hope that it will be useful,
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| # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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| # GNU General Public License for more details.
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| # 
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| # You should have received a copy of the GNU General Public License
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| # along with this program; if not, write to the Free Software
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| # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
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| 
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| module Redmine
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|   module WikiFormatting
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|     module Macros
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|       module Definitions
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|         def exec_macro(name, obj, args)
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|           method_name = "macro_#{name}"
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|           send(method_name, obj, args) if respond_to?(method_name)
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|         end
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|       end
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|       
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|       @@available_macros = {}
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|       
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|       class << self
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|         # Called with a block to define additional macros.
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|         # Macro blocks accept 2 arguments:
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|         # * obj: the object that is rendered
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|         # * args: macro arguments
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|         # 
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|         # Plugins can use this method to define new macros:
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|         # 
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|         #   Redmine::WikiFormatting::Macros.register do
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|         #     desc "This is my macro"
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|         #     macro :my_macro do |obj, args|
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|         #       "My macro output"
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|         #     end
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|         #   end
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|         def register(&block)
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|           class_eval(&block) if block_given?
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|         end
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|               
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|       private
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|         # Defines a new macro with the given name and block.
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|         def macro(name, &block)
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|           name = name.to_sym if name.is_a?(String)
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|           @@available_macros[name] = @@desc || ''
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|           @@desc = nil
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|           raise "Can not create a macro without a block!" unless block_given?
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|           Definitions.send :define_method, "macro_#{name}".downcase, &block
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|         end
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|     
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|         # Sets description for the next macro to be defined
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|         def desc(txt)
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|           @@desc = txt
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|         end
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|       end
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|           
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|       # Builtin macros
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|       desc "Example macro."
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|       macro :hello_world do |obj, args|
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|         "Hello world! Object: #{obj.class.name}, " + (args.empty? ? "Called with no argument." : "Arguments: #{args.join(', ')}")
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|       end
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|     
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|       desc "Displays a list of all available macros, including description if available."
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|       macro :macro_list do
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|         out = ''
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|         @@available_macros.keys.collect(&:to_s).sort.each do |macro|
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|           out << content_tag('dt', content_tag('code', macro))
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|           out << content_tag('dd', simple_format(@@available_macros[macro.to_sym]))
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|         end
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|         content_tag('dl', out)
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|       end
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|     end
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|   end
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| end
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