132 lines
4.3 KiB
Ruby
132 lines
4.3 KiB
Ruby
# Redmine - project management software
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# Copyright (C) 2006-2008 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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module Redmine
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module WikiFormatting
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@@formatters = {}
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class << self
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def map
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yield self
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end
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def register(name, formatter, helper)
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raise ArgumentError, "format name '#{name}' is already taken" if @@formatters[name.to_s]
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@@formatters[name.to_s] = {:formatter => formatter, :helper => helper}
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end
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def formatter_for(name)
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entry = @@formatters[name.to_s]
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(entry && entry[:formatter]) || Redmine::WikiFormatting::NullFormatter::Formatter
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end
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def helper_for(name)
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entry = @@formatters[name.to_s]
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(entry && entry[:helper]) || Redmine::WikiFormatting::NullFormatter::Helper
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end
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def format_names
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@@formatters.keys.map
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end
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def to_html(format, text, options = {}, &block)
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text = if Setting.cache_formatted_text? && text.size > 2.kilobyte && cache_store && cache_key = cache_key_for(format, options[:object], options[:attribute])
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# Text retrieved from the cache store may be frozen
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# We need to dup it so we can do in-place substitutions with gsub!
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cache_store.fetch cache_key do
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formatter_for(format).new(text).to_html
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end.dup
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else
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formatter_for(format).new(text).to_html
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end
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if block_given?
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execute_macros(text, block)
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end
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text
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end
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# Returns a cache key for the given text +format+, +object+ and +attribute+ or nil if no caching should be done
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def cache_key_for(format, object, attribute)
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if object && attribute && !object.new_record? && object.respond_to?(:updated_on) && !format.blank?
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"formatted_text/#{format}/#{object.class.model_name.cache_key}/#{object.id}-#{attribute}-#{object.updated_on.to_s(:number)}"
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end
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end
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# Returns the cache store used to cache HTML output
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def cache_store
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ActionController::Base.cache_store
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end
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MACROS_RE = /
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(!)? # escaping
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(
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\{\{ # opening tag
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([\w]+) # macro name
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(\(([^\}]*)\))? # optional arguments
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\}\} # closing tag
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)
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/x unless const_defined?(:MACROS_RE)
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# Macros substitution
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def execute_macros(text, macros_runner)
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text.gsub!(MACROS_RE) do
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esc, all, macro = $1, $2, $3.downcase
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args = ($5 || '').split(',').each(&:strip)
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if esc.nil?
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begin
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macros_runner.call(macro, args)
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rescue => e
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"<div class=\"flash error\">Error executing the <strong>#{macro}</strong> macro (#{e})</div>"
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end || all
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else
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all
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end
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end
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end
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end
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# Default formatter module
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module NullFormatter
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class Formatter
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include ActionView::Helpers::TagHelper
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include ActionView::Helpers::TextHelper
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include ActionView::Helpers::UrlHelper
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def initialize(text)
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@text = text
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end
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def to_html(*args)
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simple_format(auto_link(CGI::escapeHTML(@text)))
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end
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end
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module Helper
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def wikitoolbar_for(field_id)
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end
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def heads_for_wiki_formatter
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end
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def initial_page_content(page)
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page.pretty_title.to_s
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end
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end
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end
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end
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end
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