248 lines
10 KiB
Ruby
248 lines
10 KiB
Ruby
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# Redmine - project management software
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# Copyright (C) 2006-2013 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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module Macros
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module Definitions
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# Returns true if +name+ is the name of an existing macro
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def macro_exists?(name)
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Redmine::WikiFormatting::Macros.available_macros.key?(name.to_sym)
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end
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def exec_macro(name, obj, args, text)
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macro_options = Redmine::WikiFormatting::Macros.available_macros[name.to_sym]
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return unless macro_options
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method_name = "macro_#{name}"
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unless macro_options[:parse_args] == false
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args = args.split(',').map(&:strip)
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end
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begin
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if self.class.instance_method(method_name).arity == 3
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send(method_name, obj, args, text)
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elsif text
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raise "This macro does not accept a block of text"
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else
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send(method_name, obj, args)
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end
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rescue => e
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"<div class=\"flash error\">Error executing the <strong>#{h name}</strong> macro (#{h e.to_s})</div>".html_safe
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end
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end
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def extract_macro_options(args, *keys)
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options = {}
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while args.last.to_s.strip =~ %r{^(.+?)\=(.+)$} && keys.include?($1.downcase.to_sym)
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options[$1.downcase.to_sym] = $2
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args.pop
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end
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return [args, options]
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end
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end
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@@available_macros = {}
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mattr_accessor :available_macros
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class << self
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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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#
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# desc "This is my macro that accepts a block of text"
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# macro :my_macro do |obj, args, text|
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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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# Defines a new macro with the given name, options and block.
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#
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# Options:
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# * :desc - A description of the macro
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# * :parse_args => false - Disables arguments parsing (the whole arguments
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# string is passed to the macro)
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#
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# Macro blocks accept 2 or 3 arguments:
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# * obj: the object that is rendered (eg. an Issue, a WikiContent...)
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# * args: macro arguments
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# * text: the block of text given to the macro (should be present only if the
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# macro accepts a block of text). text is a String or nil if the macro is
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# invoked without a block of text.
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#
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# Examples:
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# By default, when the macro is invoked, the coma separated list of arguments
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# is split and passed to the macro block as an array. If no argument is given
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# the macro will be invoked with an empty array:
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#
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# macro :my_macro do |obj, args|
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# # args is an array
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# # and this macro do not accept a block of text
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# end
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#
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# You can disable arguments spliting with the :parse_args => false option. In
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# this case, the full string of arguments is passed to the macro:
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#
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# macro :my_macro, :parse_args => false do |obj, args|
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# # args is a string
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# end
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#
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# Macro can optionally accept a block of text:
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#
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# macro :my_macro do |obj, args, text|
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# # this macro accepts a block of text
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# end
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#
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# Macros are invoked in formatted text using double curly brackets. Arguments
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# must be enclosed in parenthesis if any. A new line after the macro name or the
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# arguments starts the block of text that will be passe to the macro (invoking
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# a macro that do not accept a block of text with some text will fail).
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# Examples:
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#
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# No arguments:
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# {{my_macro}}
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#
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# With arguments:
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# {{my_macro(arg1, arg2)}}
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#
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# With a block of text:
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# {{my_macro
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# multiple lines
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# of text
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# }}
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#
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# With arguments and a block of text
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# {{my_macro(arg1, arg2)
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# multiple lines
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# of text
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# }}
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#
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# If a block of text is given, the closing tag }} must be at the start of a new line.
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def macro(name, options={}, &block)
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options.assert_valid_keys(:desc, :parse_args)
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unless name.to_s.match(/\A\w+\z/)
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raise "Invalid macro name: #{name} (only 0-9, A-Z, a-z and _ characters are accepted)"
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end
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unless block_given?
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raise "Can not create a macro without a block!"
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end
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name = name.to_s.downcase.to_sym
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available_macros[name] = {:desc => @@desc || ''}.merge(options)
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@@desc = nil
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Definitions.send :define_method, "macro_#{name}", &block
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end
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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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# Builtin macros
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desc "Sample macro."
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macro :hello_world do |obj, args, text|
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h("Hello world! Object: #{obj.class.name}, " +
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(args.empty? ? "Called with no argument" : "Arguments: #{args.join(', ')}") +
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" and " + (text.present? ? "a #{text.size} bytes long block of text." : "no block of text.")
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)
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end
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desc "Displays a list of all available macros, including description if available."
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macro :macro_list do |obj, args|
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out = ''.html_safe
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@@available_macros.each do |macro, options|
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out << content_tag('dt', content_tag('code', macro.to_s))
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out << content_tag('dd', textilizable(options[:desc]))
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end
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content_tag('dl', out)
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end
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desc "Displays a list of child pages. With no argument, it displays the child pages of the current wiki page. Examples:\n\n" +
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" !{{child_pages}} -- can be used from a wiki page only\n" +
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" !{{child_pages(depth=2)}} -- display 2 levels nesting only\n"
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" !{{child_pages(Foo)}} -- lists all children of page Foo\n" +
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" !{{child_pages(Foo, parent=1)}} -- same as above with a link to page Foo"
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macro :child_pages do |obj, args|
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args, options = extract_macro_options(args, :parent, :depth)
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options[:depth] = options[:depth].to_i if options[:depth].present?
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page = nil
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if args.size > 0
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page = Wiki.find_page(args.first.to_s, :project => @project)
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elsif obj.is_a?(WikiContent) || obj.is_a?(WikiContent::Version)
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page = obj.page
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else
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raise 'With no argument, this macro can be called from wiki pages only.'
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end
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raise 'Page not found' if page.nil? || !User.current.allowed_to?(:view_wiki_pages, page.wiki.project)
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pages = page.self_and_descendants(options[:depth]).group_by(&:parent_id)
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render_page_hierarchy(pages, options[:parent] ? page.parent_id : page.id)
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end
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desc "Include a wiki page. Example:\n\n !{{include(Foo)}}\n\nor to include a page of a specific project wiki:\n\n !{{include(projectname:Foo)}}"
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macro :include do |obj, args|
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page = Wiki.find_page(args.first.to_s, :project => @project)
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raise 'Page not found' if page.nil? || !User.current.allowed_to?(:view_wiki_pages, page.wiki.project)
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@included_wiki_pages ||= []
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raise 'Circular inclusion detected' if @included_wiki_pages.include?(page.title)
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@included_wiki_pages << page.title
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out = textilizable(page.content, :text, :attachments => page.attachments, :headings => false)
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@included_wiki_pages.pop
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out
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end
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desc "Inserts of collapsed block of text. Example:\n\n {{collapse(View details...)\nThis is a block of text that is collapsed by default.\nIt can be expanded by clicking a link.\n}}"
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macro :collapse do |obj, args, text|
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html_id = "collapse-#{Redmine::Utils.random_hex(4)}"
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show_label = args[0] || l(:button_show)
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hide_label = args[1] || args[0] || l(:button_hide)
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js = "$('##{html_id}-show, ##{html_id}-hide').toggle(); $('##{html_id}').fadeToggle(150);"
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out = ''.html_safe
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out << link_to_function(show_label, js, :id => "#{html_id}-show", :class => 'collapsible collapsed')
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out << link_to_function(hide_label, js, :id => "#{html_id}-hide", :class => 'collapsible', :style => 'display:none;')
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out << content_tag('div', textilizable(text, :object => obj), :id => html_id, :class => 'collapsed-text', :style => 'display:none;')
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out
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end
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desc "Displays a clickable thumbnail of an attached image. Examples:\n\n<pre>{{thumbnail(image.png)}}\n{{thumbnail(image.png, size=300, title=Thumbnail)}}</pre>"
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macro :thumbnail do |obj, args|
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args, options = extract_macro_options(args, :size, :title)
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filename = args.first
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raise 'Filename required' unless filename.present?
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size = options[:size]
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raise 'Invalid size parameter' unless size.nil? || size.match(/^\d+$/)
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size = size.to_i
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size = nil unless size > 0
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if obj && obj.respond_to?(:attachments) && attachment = Attachment.latest_attach(obj.attachments, filename)
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title = options[:title] || attachment.title
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img = image_tag(url_for(:controller => 'attachments', :action => 'thumbnail', :id => attachment, :size => size), :alt => attachment.filename)
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link_to(img, url_for(:controller => 'attachments', :action => 'show', :id => attachment), :class => 'thumbnail', :title => title)
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else
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raise "Attachment #{filename} not found"
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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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