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# Redmine - project management software
# Copyright (C) 2006-2012 Jean-Philippe Lang
#
# 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.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
module Redmine
module Themes
# Return an array of installed themes
def self.themes
@@installed_themes ||= scan_themes
end
# Rescan themes directory
def self.rescan
@@installed_themes = scan_themes
end
# Return theme for given id, or nil if it's not found
def self.theme(id, options={})
return nil if id.blank?
found = themes.find {|t| t.id == id}
if found.nil? && options[:rescan] != false
rescan
found = theme(id, :rescan => false)
end
found
end
# Class used to represent a theme
class Theme
attr_reader :path, :name, :dir
def initialize(path)
@path = path
@dir = File.basename(path)
@name = @dir.humanize
@stylesheets = nil
@javascripts = nil
end
# Directory name used as the theme id
def id; dir end
def ==(theme)
theme.is_a?(Theme) && theme.dir == dir
end
def <=>(theme)
name <=> theme.name
end
def stylesheets
@stylesheets ||= assets("stylesheets", "css")
end
def images
@images ||= assets("images")
end
def javascripts
@javascripts ||= assets("javascripts", "js")
end
def stylesheet_path(source)
"/themes/#{dir}/stylesheets/#{source}"
end
def image_path(source)
"/themes/#{dir}/images/#{source}"
end
def javascript_path(source)
"/themes/#{dir}/javascripts/#{source}"
end
private
def assets(dir, ext=nil)
if ext
Dir.glob("#{path}/#{dir}/*.#{ext}").collect {|f| File.basename(f).gsub(/\.#{ext}$/, '')}
else
Dir.glob("#{path}/#{dir}/*").collect {|f| File.basename(f)}
end
end
end
private
def self.scan_themes
dirs = Dir.glob("#{Rails.public_path}/themes/*").select do |f|
# A theme should at least override application.css
File.directory?(f) && File.exist?("#{f}/stylesheets/application.css")
end
dirs.collect {|dir| Theme.new(dir)}.sort
end
end
end
module ApplicationHelper
def current_theme
unless instance_variable_defined?(:@current_theme)
@current_theme = Redmine::Themes.theme(Setting.ui_theme)
end
@current_theme
end
# Returns the header tags for the current theme
def heads_for_theme
if current_theme && current_theme.javascripts.include?('theme')
javascript_include_tag current_theme.javascript_path('theme')
end
end
end
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