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author | Yehuda Katz + Carl Lerche <ykatz+clerche@engineyard.com> | 2009-09-02 15:00:22 -0700 |
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committer | Yehuda Katz + Carl Lerche <ykatz+clerche@engineyard.com> | 2009-09-03 11:18:57 -0700 |
commit | f3fc5c4b5f36db37edc8ab553a35b06b48226c0a (patch) | |
tree | 9d35e907f3ed525f251a78f7579406f82eadf7a1 /actionpack/lib/action_view | |
parent | dd34691b8d04a41e7d2b34df96bfe849057dd093 (diff) | |
download | rails-f3fc5c4b5f36db37edc8ab553a35b06b48226c0a.tar.gz rails-f3fc5c4b5f36db37edc8ab553a35b06b48226c0a.tar.bz2 rails-f3fc5c4b5f36db37edc8ab553a35b06b48226c0a.zip |
Refactor ActionView::Resolver
Diffstat (limited to 'actionpack/lib/action_view')
-rw-r--r-- | actionpack/lib/action_view/template/resolver.rb | 172 |
1 files changed, 95 insertions, 77 deletions
diff --git a/actionpack/lib/action_view/template/resolver.rb b/actionpack/lib/action_view/template/resolver.rb index 4442db22f6..410562efcc 100644 --- a/actionpack/lib/action_view/template/resolver.rb +++ b/actionpack/lib/action_view/template/resolver.rb @@ -1,9 +1,28 @@ require "pathname" +require "active_support/core_ext/class" require "action_view/template/template" module ActionView # Abstract superclass class Resolver + + class_inheritable_accessor(:registered_details) + self.registered_details = {} + + def self.register_detail(name, options = {}) + registered_details[name] = lambda do |val| + val ||= yield + val |= [nil] unless options[:allow_nil] == false + val + end + end + + register_detail(:locale) { [I18n.locale] } + register_detail(:formats) { Mime::SET.symbols } + register_detail(:handlers, :allow_nil => false) do + TemplateHandlers.extensions + end + def initialize(options = {}) @cache = options[:cache] @cached = {} @@ -11,15 +30,18 @@ module ActionView # Normalizes the arguments and passes it on to find_template def find(*args) - find_all_by_parts(*args).first + find_all(*args).first end - - def find_all_by_parts(name, details = {}, prefix = nil, partial = nil) - details[:locales] = [I18n.locale] - name = name.to_s.gsub(handler_matcher, '').split("/") - find_templates(name.pop, details, [prefix, *name].compact.join("/"), partial) + + def find_all(name, details = {}, prefix = nil, partial = nil) + details = normalize_details(details) + name, prefix = normalize_name(name, prefix) + + cached([name, details, prefix, partial]) do + find_templates(name, details, prefix, partial) + end end - + private # This is what child classes implement. No defaults are needed @@ -28,29 +50,24 @@ module ActionView def find_templates(name, details, prefix, partial) raise NotImplementedError end - - def valid_handlers - @valid_handlers ||= TemplateHandlers.extensions - end - def handler_matcher - @handler_matcher ||= begin - e = valid_handlers.join('|') - /\.(?:#{e})$/ + def normalize_details(details) + details = details.dup + registered_details.each do |k, v| + details[k] = v.call(details[k]) end + details end - def handler_glob - @handler_glob ||= begin - e = TemplateHandlers.extensions.map{|h| ".#{h}"}.join(",") - "{#{e}}" - end - end - - def formats_glob - @formats_glob ||= begin - '{' + Mime::SET.symbols.map { |l| ".#{l}," }.join + '}' - end + # Support legacy foo.erb names even though we now ignore .erb + # as well as incorrectly putting part of the path in the template + # name instead of the prefix. + def normalize_name(name, prefix) + handlers = TemplateHandlers.extensions.join('|') + name = name.to_s.gsub(/\.(?:#{handlers})$/, '') + + parts = name.split('/') + return parts.pop, [prefix, *parts].compact.join("/") end def cached(key) @@ -60,67 +77,49 @@ module ActionView end end - class FileSystemResolver < Resolver + class PathResolver < Resolver - def self.cached_glob - @@cached_glob ||= {} - end - - def initialize(path, options = {}) - raise ArgumentError, "path already is a Resolver class" if path.is_a?(Resolver) - super(options) - @path = Pathname.new(path).expand_path - end + EXTENSION_ORDER = [:locale, :formats, :handlers] def to_s @path.to_s end alias to_path to_s - def find_templates(name, details, prefix, partial, root = "#{@path}/") - if glob = details_to_glob(name, details, prefix, partial, root) - cached(glob) do - Dir[glob].map do |path| - next if File.directory?(path) - source = File.read(path) - identifier = Pathname.new(path).expand_path.to_s - - Template.new(source, identifier, *path_to_details(path)) - end.compact - end - end + def find_templates(name, details, prefix, partial) + path = build_path(name, details, prefix, partial) + query(path, EXTENSION_ORDER.map { |ext| details[ext] }) end - + private - # :api: plugin - def details_to_glob(name, details, prefix, partial, root) - self.class.cached_glob[[name, prefix, partial, details, root]] ||= begin - path = "" - path << "#{prefix}/" unless prefix.empty? - path << (partial ? "_#{name}" : name) - - extensions = "" - [:locales, :formats].each do |k| - # TODO: OMG NO - if details[k] == [:"*/*"] - extensions << formats_glob if k == :formats - elsif exts = details[k] - extensions << '{' + exts.map {|e| ".#{e},"}.join + '}' - else - extensions << formats_glob if k == :formats - end - end - - "#{root}#{path}#{extensions}#{handler_glob}" + def build_path(name, details, prefix, partial) + path = "" + path << "#{prefix}/" unless prefix.empty? + path << (partial ? "_#{name}" : name) + path + end + + def query(path, exts) + query = "#{@path}/#{path}" + exts.each do |ext| + query << '{' << ext.map {|e| e && ".#{e}" }.join(',') << '}' end + + Dir[query].map do |path| + next if File.directory?(path) + source = File.read(path) + identifier = Pathname.new(path).expand_path.to_s + + Template.new(source, identifier, *path_to_details(path)) + end.compact end - # TODO: fix me - # :api: plugin + # # TODO: fix me + # # :api: plugin def path_to_details(path) # [:erb, :format => :html, :locale => :en, :partial => true/false] - if m = path.match(%r'/(_)?[\w-]+(\.[\w-]+)*\.(\w+)$') + if m = path.match(%r'(?:^|/)(_)?[\w-]+(\.[\w-]+)*\.(\w+)$') partial = m[1] == '_' details = (m[2]||"").split('.').reject { |e| e.empty? } handler = Template.handler_class_for_extension(m[3]) @@ -133,13 +132,32 @@ module ActionView end end - class FileSystemResolverWithFallback < FileSystemResolver + class FileSystemResolver < PathResolver + def initialize(path, options = {}) + raise ArgumentError, "path already is a Resolver class" if path.is_a?(Resolver) + super(options) + @path = Pathname.new(path).expand_path + end + end + + # OMG HAX + # TODO: remove hax + class FileSystemResolverWithFallback < Resolver + def initialize(path, options = {}) + super(options) + @paths = [FileSystemResolver.new(path, options), FileSystemResolver.new("", options), FileSystemResolver.new("/", options)] + end - def find_templates(name, details, prefix, partial) - templates = super - return super(name, details, prefix, partial, '') if templates.empty? - templates + def find_templates(*args) + @paths.each do |p| + template = p.find_templates(*args) + return template unless template.empty? + end + [] end + def to_s + @paths.first.to_s + end end end
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