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author | Gonçalo Silva <goncalossilva@gmail.com> | 2011-03-24 17:21:17 +0000 |
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committer | Gonçalo Silva <goncalossilva@gmail.com> | 2011-03-24 17:21:17 +0000 |
commit | 9887f238871bb2dd73de6ce8855615bcc5d8d079 (patch) | |
tree | 74fa9ff9524a51701cfa23f708b3f777c65b7fe5 /actionpack/lib/action_view/helpers/asset_tag_helper.rb | |
parent | aff821508a16245ebc03510ba29c70379718dfb7 (diff) | |
parent | 5214e73850916de3c9127d35a4ecee0424d364a3 (diff) | |
download | rails-9887f238871bb2dd73de6ce8855615bcc5d8d079.tar.gz rails-9887f238871bb2dd73de6ce8855615bcc5d8d079.tar.bz2 rails-9887f238871bb2dd73de6ce8855615bcc5d8d079.zip |
Merge branch 'master' of https://github.com/rails/rails
Diffstat (limited to 'actionpack/lib/action_view/helpers/asset_tag_helper.rb')
-rw-r--r-- | actionpack/lib/action_view/helpers/asset_tag_helper.rb | 494 |
1 files changed, 14 insertions, 480 deletions
diff --git a/actionpack/lib/action_view/helpers/asset_tag_helper.rb b/actionpack/lib/action_view/helpers/asset_tag_helper.rb index a3c43d3e93..f6b2d4f3f4 100644 --- a/actionpack/lib/action_view/helpers/asset_tag_helper.rb +++ b/actionpack/lib/action_view/helpers/asset_tag_helper.rb @@ -1,9 +1,6 @@ -require 'thread' -require 'cgi' -require 'action_view/helpers/url_helper' -require 'action_view/helpers/tag_helper' -require 'active_support/core_ext/file' -require 'active_support/core_ext/object/blank' +require 'action_view/helpers/asset_tag_helpers/javascript_tag_helpers' +require 'action_view/helpers/asset_tag_helpers/stylesheet_tag_helpers' +require 'action_view/helpers/asset_tag_helpers/asset_paths' module ActionView # = Action View Asset Tag Helpers @@ -152,7 +149,7 @@ module ActionView # # # Normally you'd calculate RELEASE_NUMBER at startup. # RELEASE_NUMBER = 12345 - # config.action_controller.asset_path_template = proc { |asset_path| + # config.action_controller.asset_path = proc { |asset_path| # "/release-#{RELEASE_NUMBER}#{asset_path}" # } # @@ -194,20 +191,8 @@ module ActionView # RewriteEngine On # RewriteRule ^/release-\d+/(images|javascripts|stylesheets)/(.*)$ /$1/$2 [L] module AssetTagHelper - mattr_reader :javascript_expansions - @@javascript_expansions = { } - - mattr_reader :stylesheet_expansions - @@stylesheet_expansions = {} - - # You can enable or disable the asset tag timestamps cache. - # With the cache enabled, the asset tag helper methods will make fewer - # expensive file system calls. However this prevents you from modifying - # any asset files while the server is running. - # - # ActionView::Helpers::AssetTagHelper.cache_asset_timestamps = false - mattr_accessor :cache_asset_timestamps - + include JavascriptTagHelpers + include StylesheetTagHelpers # Returns a link tag that browsers and news readers can use to auto-detect # an RSS or ATOM feed. The +type+ can either be <tt>:rss</tt> (default) or # <tt>:atom</tt>. Control the link options in url_for format using the @@ -241,263 +226,6 @@ module ActionView ) end - # Computes the path to a javascript asset in the public javascripts directory. - # If the +source+ filename has no extension, .js will be appended (except for explicit URIs) - # Full paths from the document root will be passed through. - # Used internally by javascript_include_tag to build the script path. - # - # ==== Examples - # javascript_path "xmlhr" # => /javascripts/xmlhr.js - # javascript_path "dir/xmlhr.js" # => /javascripts/dir/xmlhr.js - # javascript_path "/dir/xmlhr" # => /dir/xmlhr.js - # javascript_path "http://www.railsapplication.com/js/xmlhr" # => http://www.railsapplication.com/js/xmlhr - # javascript_path "http://www.railsapplication.com/js/xmlhr.js" # => http://www.railsapplication.com/js/xmlhr.js - def javascript_path(source) - compute_public_path(source, 'javascripts', 'js') - end - alias_method :path_to_javascript, :javascript_path # aliased to avoid conflicts with a javascript_path named route - - # Returns an html script tag for each of the +sources+ provided. You - # can pass in the filename (.js extension is optional) of javascript files - # that exist in your public/javascripts directory for inclusion into the - # current page or you can pass the full path relative to your document - # root. To include the Prototype and Scriptaculous javascript libraries in - # your application, pass <tt>:defaults</tt> as the source. When using - # <tt>:defaults</tt>, if an application.js file exists in your public - # javascripts directory, it will be included as well. You can modify the - # html attributes of the script tag by passing a hash as the last argument. - # - # ==== Examples - # javascript_include_tag "xmlhr" # => - # <script type="text/javascript" src="/javascripts/xmlhr.js"></script> - # - # javascript_include_tag "xmlhr.js" # => - # <script type="text/javascript" src="/javascripts/xmlhr.js"></script> - # - # javascript_include_tag "common.javascript", "/elsewhere/cools" # => - # <script type="text/javascript" src="/javascripts/common.javascript"></script> - # <script type="text/javascript" src="/elsewhere/cools.js"></script> - # - # javascript_include_tag "http://www.railsapplication.com/xmlhr" # => - # <script type="text/javascript" src="http://www.railsapplication.com/xmlhr.js"></script> - # - # javascript_include_tag "http://www.railsapplication.com/xmlhr.js" # => - # <script type="text/javascript" src="http://www.railsapplication.com/xmlhr.js"></script> - # - # javascript_include_tag :defaults # => - # <script type="text/javascript" src="/javascripts/prototype.js"></script> - # <script type="text/javascript" src="/javascripts/effects.js"></script> - # ... - # <script type="text/javascript" src="/javascripts/application.js"></script> - # - # * = The application.js file is only referenced if it exists - # - # Though it's not really recommended practice, if you need to extend the default JavaScript set for any reason - # (e.g., you're going to be using a certain .js file in every action), then take a look at the register_javascript_include_default method. - # - # You can also include all javascripts in the javascripts directory using <tt>:all</tt> as the source: - # - # javascript_include_tag :all # => - # <script type="text/javascript" src="/javascripts/prototype.js"></script> - # <script type="text/javascript" src="/javascripts/effects.js"></script> - # ... - # <script type="text/javascript" src="/javascripts/application.js"></script> - # <script type="text/javascript" src="/javascripts/shop.js"></script> - # <script type="text/javascript" src="/javascripts/checkout.js"></script> - # - # Note that the default javascript files will be included first. So Prototype and Scriptaculous are available to - # all subsequently included files. - # - # If you want Rails to search in all the subdirectories under javascripts, you should explicitly set <tt>:recursive</tt>: - # - # javascript_include_tag :all, :recursive => true - # - # == Caching multiple javascripts into one - # - # You can also cache multiple javascripts into one file, which requires less HTTP connections to download and can better be - # compressed by gzip (leading to faster transfers). Caching will only happen if config.perform_caching - # is set to <tt>true</tt> (which is the case by default for the Rails production environment, but not for the development - # environment). - # - # ==== Examples - # javascript_include_tag :all, :cache => true # when config.perform_caching is false => - # <script type="text/javascript" src="/javascripts/prototype.js"></script> - # <script type="text/javascript" src="/javascripts/effects.js"></script> - # ... - # <script type="text/javascript" src="/javascripts/application.js"></script> - # <script type="text/javascript" src="/javascripts/shop.js"></script> - # <script type="text/javascript" src="/javascripts/checkout.js"></script> - # - # javascript_include_tag :all, :cache => true # when config.perform_caching is true => - # <script type="text/javascript" src="/javascripts/all.js"></script> - # - # javascript_include_tag "prototype", "cart", "checkout", :cache => "shop" # when config.perform_caching is false => - # <script type="text/javascript" src="/javascripts/prototype.js"></script> - # <script type="text/javascript" src="/javascripts/cart.js"></script> - # <script type="text/javascript" src="/javascripts/checkout.js"></script> - # - # javascript_include_tag "prototype", "cart", "checkout", :cache => "shop" # when config.perform_caching is true => - # <script type="text/javascript" src="/javascripts/shop.js"></script> - # - # The <tt>:recursive</tt> option is also available for caching: - # - # javascript_include_tag :all, :cache => true, :recursive => true - def javascript_include_tag(*sources) - options = sources.extract_options!.stringify_keys - concat = options.delete("concat") - cache = concat || options.delete("cache") - recursive = options.delete("recursive") - - if concat || (config.perform_caching && cache) - joined_javascript_name = (cache == true ? "all" : cache) + ".js" - joined_javascript_path = File.join(joined_javascript_name[/^#{File::SEPARATOR}/] ? config.assets_dir : config.javascripts_dir, joined_javascript_name) - - unless config.perform_caching && File.exists?(joined_javascript_path) - write_asset_file_contents(joined_javascript_path, compute_javascript_paths(sources, recursive)) - end - javascript_src_tag(joined_javascript_name, options) - else - sources = expand_javascript_sources(sources, recursive) - ensure_javascript_sources!(sources) if cache - sources.collect { |source| javascript_src_tag(source, options) }.join("\n").html_safe - end - end - - # Register one or more javascript files to be included when <tt>symbol</tt> - # is passed to <tt>javascript_include_tag</tt>. This method is typically intended - # to be called from plugin initialization to register javascript files - # that the plugin installed in <tt>public/javascripts</tt>. - # - # ActionView::Helpers::AssetTagHelper.register_javascript_expansion :monkey => ["head", "body", "tail"] - # - # javascript_include_tag :monkey # => - # <script type="text/javascript" src="/javascripts/head.js"></script> - # <script type="text/javascript" src="/javascripts/body.js"></script> - # <script type="text/javascript" src="/javascripts/tail.js"></script> - def self.register_javascript_expansion(expansions) - @@javascript_expansions.merge!(expansions) - end - - # Register one or more stylesheet files to be included when <tt>symbol</tt> - # is passed to <tt>stylesheet_link_tag</tt>. This method is typically intended - # to be called from plugin initialization to register stylesheet files - # that the plugin installed in <tt>public/stylesheets</tt>. - # - # ActionView::Helpers::AssetTagHelper.register_stylesheet_expansion :monkey => ["head", "body", "tail"] - # - # stylesheet_link_tag :monkey # => - # <link href="/stylesheets/head.css" media="screen" rel="stylesheet" type="text/css" /> - # <link href="/stylesheets/body.css" media="screen" rel="stylesheet" type="text/css" /> - # <link href="/stylesheets/tail.css" media="screen" rel="stylesheet" type="text/css" /> - def self.register_stylesheet_expansion(expansions) - @@stylesheet_expansions.merge!(expansions) - end - - # Computes the path to a stylesheet asset in the public stylesheets directory. - # If the +source+ filename has no extension, <tt>.css</tt> will be appended (except for explicit URIs). - # Full paths from the document root will be passed through. - # Used internally by +stylesheet_link_tag+ to build the stylesheet path. - # - # ==== Examples - # stylesheet_path "style" # => /stylesheets/style.css - # stylesheet_path "dir/style.css" # => /stylesheets/dir/style.css - # stylesheet_path "/dir/style.css" # => /dir/style.css - # stylesheet_path "http://www.railsapplication.com/css/style" # => http://www.railsapplication.com/css/style - # stylesheet_path "http://www.railsapplication.com/css/style.css" # => http://www.railsapplication.com/css/style.css - def stylesheet_path(source) - compute_public_path(source, 'stylesheets', 'css') - end - alias_method :path_to_stylesheet, :stylesheet_path # aliased to avoid conflicts with a stylesheet_path named route - - # Returns a stylesheet link tag for the sources specified as arguments. If - # you don't specify an extension, <tt>.css</tt> will be appended automatically. - # You can modify the link attributes by passing a hash as the last argument. - # - # ==== Examples - # stylesheet_link_tag "style" # => - # <link href="/stylesheets/style.css" media="screen" rel="stylesheet" type="text/css" /> - # - # stylesheet_link_tag "style.css" # => - # <link href="/stylesheets/style.css" media="screen" rel="stylesheet" type="text/css" /> - # - # stylesheet_link_tag "http://www.railsapplication.com/style.css" # => - # <link href="http://www.railsapplication.com/style.css" media="screen" rel="stylesheet" type="text/css" /> - # - # stylesheet_link_tag "style", :media => "all" # => - # <link href="/stylesheets/style.css" media="all" rel="stylesheet" type="text/css" /> - # - # stylesheet_link_tag "style", :media => "print" # => - # <link href="/stylesheets/style.css" media="print" rel="stylesheet" type="text/css" /> - # - # stylesheet_link_tag "random.styles", "/css/stylish" # => - # <link href="/stylesheets/random.styles" media="screen" rel="stylesheet" type="text/css" /> - # <link href="/css/stylish.css" media="screen" rel="stylesheet" type="text/css" /> - # - # You can also include all styles in the stylesheets directory using <tt>:all</tt> as the source: - # - # stylesheet_link_tag :all # => - # <link href="/stylesheets/style1.css" media="screen" rel="stylesheet" type="text/css" /> - # <link href="/stylesheets/styleB.css" media="screen" rel="stylesheet" type="text/css" /> - # <link href="/stylesheets/styleX2.css" media="screen" rel="stylesheet" type="text/css" /> - # - # If you want Rails to search in all the subdirectories under stylesheets, you should explicitly set <tt>:recursive</tt>: - # - # stylesheet_link_tag :all, :recursive => true - # - # == Caching multiple stylesheets into one - # - # You can also cache multiple stylesheets into one file, which requires less HTTP connections and can better be - # compressed by gzip (leading to faster transfers). Caching will only happen if config.perform_caching - # is set to true (which is the case by default for the Rails production environment, but not for the development - # environment). Examples: - # - # ==== Examples - # stylesheet_link_tag :all, :cache => true # when config.perform_caching is false => - # <link href="/stylesheets/style1.css" media="screen" rel="stylesheet" type="text/css" /> - # <link href="/stylesheets/styleB.css" media="screen" rel="stylesheet" type="text/css" /> - # <link href="/stylesheets/styleX2.css" media="screen" rel="stylesheet" type="text/css" /> - # - # stylesheet_link_tag :all, :cache => true # when config.perform_caching is true => - # <link href="/stylesheets/all.css" media="screen" rel="stylesheet" type="text/css" /> - # - # stylesheet_link_tag "shop", "cart", "checkout", :cache => "payment" # when config.perform_caching is false => - # <link href="/stylesheets/shop.css" media="screen" rel="stylesheet" type="text/css" /> - # <link href="/stylesheets/cart.css" media="screen" rel="stylesheet" type="text/css" /> - # <link href="/stylesheets/checkout.css" media="screen" rel="stylesheet" type="text/css" /> - # - # stylesheet_link_tag "shop", "cart", "checkout", :cache => "payment" # when config.perform_caching is true => - # <link href="/stylesheets/payment.css" media="screen" rel="stylesheet" type="text/css" /> - # - # The <tt>:recursive</tt> option is also available for caching: - # - # stylesheet_link_tag :all, :cache => true, :recursive => true - # - # To force concatenation (even in development mode) set <tt>:concat</tt> to true. This is useful if - # you have too many stylesheets for IE to load. - # - # stylesheet_link_tag :all, :concat => true - # - def stylesheet_link_tag(*sources) - options = sources.extract_options!.stringify_keys - concat = options.delete("concat") - cache = concat || options.delete("cache") - recursive = options.delete("recursive") - - if concat || (config.perform_caching && cache) - joined_stylesheet_name = (cache == true ? "all" : cache) + ".css" - joined_stylesheet_path = File.join(joined_stylesheet_name[/^#{File::SEPARATOR}/] ? config.assets_dir : config.stylesheets_dir, joined_stylesheet_name) - - unless config.perform_caching && File.exists?(joined_stylesheet_path) - write_asset_file_contents(joined_stylesheet_path, compute_stylesheet_paths(sources, recursive)) - end - stylesheet_tag(joined_stylesheet_name, options) - else - sources = expand_stylesheet_sources(sources, recursive) - ensure_stylesheet_sources!(sources) if cache - sources.collect { |source| stylesheet_tag(source, options) }.join("\n").html_safe - end - end - # Web browsers cache favicons. If you just throw a <tt>favicon.ico</tt> into the document # root of your application and it changes later, clients that have it in their cache # won't see the update. Using this helper prevents that because it appends an asset ID: @@ -546,7 +274,7 @@ module ActionView # The alias +path_to_image+ is provided to avoid that. Rails uses the alias internally, and # plugin authors are encouraged to do so. def image_path(source) - compute_public_path(source, 'images') + asset_paths.compute_public_path(source, 'images') end alias_method :path_to_image, :image_path # aliased to avoid conflicts with an image_path named route @@ -561,7 +289,7 @@ module ActionView # video_path("/trailers/hd.avi") # => /trailers/hd.avi # video_path("http://www.railsapplication.com/vid/hd.avi") # => http://www.railsapplication.com/vid/hd.avi def video_path(source) - compute_public_path(source, 'videos') + asset_paths.compute_public_path(source, 'videos') end alias_method :path_to_video, :video_path # aliased to avoid conflicts with a video_path named route @@ -571,12 +299,12 @@ module ActionView # # ==== Examples # audio_path("horse") # => /audios/horse - # audio_path("horse.wav") # => /audios/horse.avi - # audio_path("sounds/horse.wav") # => /audios/sounds/horse.avi - # audio_path("/sounds/horse.wav") # => /sounds/horse.avi + # audio_path("horse.wav") # => /audios/horse.wav + # audio_path("sounds/horse.wav") # => /audios/sounds/horse.wav + # audio_path("/sounds/horse.wav") # => /sounds/horse.wav # audio_path("http://www.railsapplication.com/sounds/horse.wav") # => http://www.railsapplication.com/sounds/horse.wav def audio_path(source) - compute_public_path(source, 'audios') + asset_paths.compute_public_path(source, 'audios') end alias_method :path_to_audio, :audio_path # aliased to avoid conflicts with an audio_path named route @@ -705,202 +433,8 @@ module ActionView private - def rewrite_extension?(source, dir, ext) - source_ext = File.extname(source)[1..-1] - ext && (source_ext.blank? || (ext != source_ext && File.exist?(File.join(config.assets_dir, dir, "#{source}.#{ext}")))) - end - - def rewrite_host_and_protocol(source, has_request) - host = compute_asset_host(source) - if has_request && host.present? && !is_uri?(host) - host = "#{controller.request.protocol}#{host}" - end - "#{host}#{source}" - end - - # Add the the extension +ext+ if not present. Return full URLs otherwise untouched. - # Prefix with <tt>/dir/</tt> if lacking a leading +/+. Account for relative URL - # roots. Rewrite the asset path for cache-busting asset ids. Include - # asset host, if configured, with the correct request protocol. - def compute_public_path(source, dir, ext = nil, include_host = true) - return source if is_uri?(source) - - source += ".#{ext}" if rewrite_extension?(source, dir, ext) - source = "/#{dir}/#{source}" unless source[0] == ?/ - source = rewrite_asset_path(source, config.asset_path) - - has_request = controller.respond_to?(:request) - if has_request && include_host && source !~ %r{^#{controller.config.relative_url_root}/} - source = "#{controller.config.relative_url_root}#{source}" - end - source = rewrite_host_and_protocol(source, has_request) if include_host - - source - end - - def is_uri?(path) - path =~ %r{^[-a-z]+://|^cid:} - end - - # Pick an asset host for this source. Returns +nil+ if no host is set, - # the host if no wildcard is set, the host interpolated with the - # numbers 0-3 if it contains <tt>%d</tt> (the number is the source hash mod 4), - # or the value returned from invoking the proc if it's a proc or the value from - # invoking call if it's an object responding to call. - def compute_asset_host(source) - if host = config.asset_host - if host.is_a?(Proc) || host.respond_to?(:call) - case host.is_a?(Proc) ? host.arity : host.method(:call).arity - when 2 - request = controller.respond_to?(:request) && controller.request - host.call(source, request) - else - host.call(source) - end - else - (host =~ /%d/) ? host % (source.hash % 4) : host - end - end - end - - @@asset_timestamps_cache = {} - @@asset_timestamps_cache_guard = Mutex.new - - # Use the RAILS_ASSET_ID environment variable or the source's - # modification time as its cache-busting asset id. - def rails_asset_id(source) - if asset_id = ENV["RAILS_ASSET_ID"] - asset_id - else - if @@cache_asset_timestamps && (asset_id = @@asset_timestamps_cache[source]) - asset_id - else - path = File.join(config.assets_dir, source) - asset_id = File.exist?(path) ? File.mtime(path).to_i.to_s : '' - - if @@cache_asset_timestamps - @@asset_timestamps_cache_guard.synchronize do - @@asset_timestamps_cache[source] = asset_id - end - end - - asset_id - end - end - end - - # Break out the asset path rewrite in case plugins wish to put the asset id - # someplace other than the query string. - def rewrite_asset_path(source, path = nil) - if path && path.respond_to?(:call) - return path.call(source) - elsif path && path.is_a?(String) - return path % [source] - end - - asset_id = rails_asset_id(source) - if asset_id.blank? - source - else - source + "?#{asset_id}" - end - end - - def javascript_src_tag(source, options) - content_tag("script", "", { "type" => Mime::JS, "src" => path_to_javascript(source) }.merge(options)) - end - - def stylesheet_tag(source, options) - tag("link", { "rel" => "stylesheet", "type" => Mime::CSS, "media" => "screen", "href" => html_escape(path_to_stylesheet(source)) }.merge(options), false, false) - end - - def compute_javascript_paths(*args) - expand_javascript_sources(*args).collect { |source| compute_public_path(source, 'javascripts', 'js', false) } - end - - def compute_stylesheet_paths(*args) - expand_stylesheet_sources(*args).collect { |source| compute_public_path(source, 'stylesheets', 'css', false) } - end - - def expand_javascript_sources(sources, recursive = false) - if sources.include?(:all) - all_javascript_files = collect_asset_files(config.javascripts_dir, ('**' if recursive), '*.js') - ((determine_source(:defaults, @@javascript_expansions).dup & all_javascript_files) + all_javascript_files).uniq - else - expanded_sources = sources.collect do |source| - determine_source(source, @@javascript_expansions) - end.flatten - expanded_sources << "application" if sources.include?(:defaults) && File.exist?(File.join(config.javascripts_dir, "application.js")) - expanded_sources - end - end - - def expand_stylesheet_sources(sources, recursive) - if sources.first == :all - collect_asset_files(config.stylesheets_dir, ('**' if recursive), '*.css') - else - sources.collect do |source| - determine_source(source, @@stylesheet_expansions) - end.flatten - end - end - - def determine_source(source, collection) - case source - when Symbol - collection[source] || raise(ArgumentError, "No expansion found for #{source.inspect}") - else - source - end - end - - def ensure_stylesheet_sources!(sources) - sources.each do |source| - asset_file_path!(path_to_stylesheet(source)) - end - return sources - end - - def ensure_javascript_sources!(sources) - sources.each do |source| - asset_file_path!(path_to_javascript(source)) - end - return sources - end - - def join_asset_file_contents(paths) - paths.collect { |path| File.read(asset_file_path!(path)) }.join("\n\n") - end - - def write_asset_file_contents(joined_asset_path, asset_paths) - - FileUtils.mkdir_p(File.dirname(joined_asset_path)) - File.atomic_write(joined_asset_path) { |cache| cache.write(join_asset_file_contents(asset_paths)) } - - # Set mtime to the latest of the combined files to allow for - # consistent ETag without a shared filesystem. - mt = asset_paths.map { |p| File.mtime(asset_file_path(p)) }.max - File.utime(mt, mt, joined_asset_path) - end - - def asset_file_path(path) - File.join(config.assets_dir, path.split('?').first) - end - - def asset_file_path!(path) - unless is_uri?(path) - absolute_path = asset_file_path(path) - raise(Errno::ENOENT, "Asset file not found at '#{absolute_path}'" ) unless File.exist?(absolute_path) - return absolute_path - end - end - - def collect_asset_files(*path) - dir = path.first - - Dir[File.join(*path.compact)].collect do |file| - file[-(file.size - dir.size - 1)..-1].sub(/\.\w+$/, '') - end.sort + def asset_paths + @asset_paths ||= AssetPaths.new(config, controller) end end end |