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115 lines
3.6 KiB
115 lines
3.6 KiB
#-- encoding: UTF-8
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#-- copyright
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# OpenProject is a project management system.
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# Copyright (C) 2012-2014 the OpenProject Foundation (OPF)
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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 version 3.
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#
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# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
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# Copyright (C) 2006-2013 Jean-Philippe Lang
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# Copyright (C) 2010-2013 the ChiliProject Team
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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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# See doc/COPYRIGHT.rdoc for more details.
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#++
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module OpenProject
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module Themes
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module ThemeFinder
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class << self
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##
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# A list of all available themes.
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# aliased to :all
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def themes
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@_themes ||= []
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end
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alias_method :all, :themes
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##
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# Returns a hash with theme identifiers as keys,
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# pointing to their Theme objects.
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def registered_themes
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@_registered_themes ||= \
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themes.each_with_object({}.with_indifferent_access) do |theme, themes|
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themes[theme.identifier] = theme
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end
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end
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delegate :fetch, to: :registered_themes
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##
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# Registers a theme instance, so that it is listed
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# in `themes` and `registered_themes`.
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# Every Theme, which is subclassed from OpenProject::Themes::Theme
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# automatically registers itself using this method.
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#
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# params: theme (a OpenProject::Themes::Theme instance)
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def register_theme(theme)
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self.themes << theme
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clear_cache
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# register the theme's stylesheet manifest with rails' asset pipeline
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# we need to wrap the call to #stylesheet_manifest in a Proc,
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# because when this code is executed the theme instance (theme) hasn't had
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# a chance to override the method yet
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Rails.application.config.assets.precompile << -> (path) {
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return if theme.abstract?
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theme.stylesheet_manifest == path
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}
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end
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def forget_theme(theme)
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remove_asset_pipeline_proc(theme)
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themes.delete(theme)
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clear_cache
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end
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def clear_themes
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remove_all_asset_pipeline_procs
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themes.clear
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clear_cache
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end
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include Enumerable
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delegate :each, to: :themes
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private
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def remove_asset_pipeline_proc(theme)
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Rails.application.config.assets.precompile.delete_if do |item|
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item.is_a?(Proc) and extract_theme(item) == theme
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end
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end
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def remove_all_asset_pipeline_procs
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Rails.application.config.assets.precompile.delete_if do |item|
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item.is_a?(Proc) and extract_theme(item).is_a?(OpenProject::Themes::Theme)
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end
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end
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def extract_theme(proc)
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proc.binding.eval('theme if local_variables.include? :theme')
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end
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def clear_cache
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@_registered_themes = nil
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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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