diff options
Diffstat (limited to 'actionpack/lib/action_view/helpers/asset_tag_helper.rb')
| -rw-r--r-- | actionpack/lib/action_view/helpers/asset_tag_helper.rb | 205 |
1 files changed, 120 insertions, 85 deletions
diff --git a/actionpack/lib/action_view/helpers/asset_tag_helper.rb b/actionpack/lib/action_view/helpers/asset_tag_helper.rb index 7d01e5ddb8..02c1250c76 100644 --- a/actionpack/lib/action_view/helpers/asset_tag_helper.rb +++ b/actionpack/lib/action_view/helpers/asset_tag_helper.rb @@ -1,3 +1,5 @@ +require 'active_support/core_ext/array/extract_options' +require 'active_support/core_ext/hash/keys' 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' @@ -11,27 +13,29 @@ module ActionView # the assets exist before linking to them: # # image_tag("rails.png") - # # => <img alt="Rails" src="/images/rails.png?1230601161" /> + # # => <img alt="Rails" src="/assets/rails.png" /> # stylesheet_link_tag("application") - # # => <link href="/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> + # # => <link href="/assets/application.css?body=1" media="screen" rel="stylesheet" /> + # # # === Using asset hosts # # By default, Rails links to these assets on the current host in the public # folder, but you can direct Rails to link to assets from a dedicated asset - # server by setting ActionController::Base.asset_host in the application + # server by setting <tt>ActionController::Base.asset_host</tt> in the application # configuration, typically in <tt>config/environments/production.rb</tt>. # For example, you'd define <tt>assets.example.com</tt> to be your asset - # host this way: + # host this way, inside the <tt>configure</tt> block of your environment-specific + # configuration files or <tt>config/application.rb</tt>: # - # ActionController::Base.asset_host = "assets.example.com" + # config.action_controller.asset_host = "assets.example.com" # # Helpers take that into account: # # image_tag("rails.png") - # # => <img alt="Rails" src="http://assets.example.com/images/rails.png?1230601161" /> + # # => <img alt="Rails" src="http://assets.example.com/assets/rails.png" /> # stylesheet_link_tag("application") - # # => <link href="http://assets.example.com/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> + # # => <link href="http://assets.example.com/assets/application.css" media="screen" rel="stylesheet" /> # # Browsers typically open at most two simultaneous connections to a single # host, which means your assets often have to wait for other assets to finish @@ -42,9 +46,9 @@ module ActionView # will open eight simultaneous connections rather than two. # # image_tag("rails.png") - # # => <img alt="Rails" src="http://assets0.example.com/images/rails.png?1230601161" /> + # # => <img alt="Rails" src="http://assets0.example.com/assets/rails.png" /> # stylesheet_link_tag("application") - # # => <link href="http://assets2.example.com/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> + # # => <link href="http://assets2.example.com/assets/application.css" media="screen" rel="stylesheet" /> # # To do this, you can either setup four actual hosts, or you can use wildcard # DNS to CNAME the wildcard to a single asset host. You can read more about @@ -61,29 +65,28 @@ module ActionView # "http://assets#{Digest::MD5.hexdigest(source).to_i(16) % 2 + 1}.example.com" # } # image_tag("rails.png") - # # => <img alt="Rails" src="http://assets1.example.com/images/rails.png?1230601161" /> + # # => <img alt="Rails" src="http://assets1.example.com/assets/rails.png" /> # stylesheet_link_tag("application") - # # => <link href="http://assets2.example.com/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> + # # => <link href="http://assets2.example.com/assets/application.css" media="screen" rel="stylesheet" /> # # The example above generates "http://assets1.example.com" and # "http://assets2.example.com". This option is useful for example if # you need fewer/more than four hosts, custom host names, etc. # # As you see the proc takes a +source+ parameter. That's a string with the - # absolute path of the asset with any extensions and timestamps in place, - # for example "/images/rails.png?1230601161". + # absolute path of the asset, for example "/assets/rails.png". # # ActionController::Base.asset_host = Proc.new { |source| - # if source.starts_with?('/images') - # "http://images.example.com" + # if source.ends_with?('.css') + # "http://stylesheets.example.com" # else # "http://assets.example.com" # end # } # image_tag("rails.png") - # # => <img alt="Rails" src="http://images.example.com/images/rails.png?1230601161" /> + # # => <img alt="Rails" src="http://assets.example.com/assets/rails.png" /> # stylesheet_link_tag("application") - # # => <link href="http://assets.example.com/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> + # # => <link href="http://stylesheets.example.com/assets/application.css" media="screen" rel="stylesheet" /> # # Alternatively you may ask for a second parameter +request+. That one is # particularly useful for serving assets from an SSL-protected page. The @@ -160,7 +163,7 @@ module ActionView # image_tag("rails.png") # # => <img alt="Rails" src="/release-12345/images/rails.png" /> # stylesheet_link_tag("application") - # # => <link href="/release-12345/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" type="text/css" /> + # # => <link href="/release-12345/stylesheets/application.css?1232285206" media="screen" rel="stylesheet" /> # # Changing the asset_path does require that your web servers have # knowledge of the asset template paths that you rewrite to so it's not @@ -196,7 +199,7 @@ module ActionView 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 + # 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 # +url_options+. You can modify the LINK tag itself in +tag_options+. # @@ -228,23 +231,19 @@ module ActionView ) 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: - # # <%= favicon_link_tag %> # # generates # - # <link href="/favicon.ico?4649789979" rel="shortcut icon" type="image/vnd.microsoft.icon" /> + # <link href="/assets/favicon.ico" rel="shortcut icon" type="image/vnd.microsoft.icon" /> # # You may specify a different file in the first argument: # - # <%= favicon_link_tag 'favicon.ico' %> + # <%= favicon_link_tag '/myicon.ico' %> # # That's passed to +path_to_image+ as is, so it gives # - # <link href="/images/favicon.ico?4649789979" rel="shortcut icon" type="image/vnd.microsoft.icon" /> + # <link href="/myicon.ico" rel="shortcut icon" type="image/vnd.microsoft.icon" /> # # The helper accepts an additional options hash where you can override "rel" and "type". # @@ -253,8 +252,7 @@ module ActionView # The following call would generate such a tag: # # <%= favicon_link_tag 'mb-icon.png', :rel => 'apple-touch-icon', :type => 'image/png' %> - # - def favicon_link_tag(source='/favicon.ico', options={}) + def favicon_link_tag(source='favicon.ico', options={}) tag('link', { :rel => 'shortcut icon', :type => 'image/vnd.microsoft.icon', @@ -262,13 +260,13 @@ module ActionView }.merge(options.symbolize_keys)) end - # Computes the path to an image asset in the public images directory. + # Computes the path to an image asset. # Full paths from the document root will be passed through. # Used internally by +image_tag+ to build the image path: # - # image_path("edit") # => "/images/edit" - # image_path("edit.png") # => "/images/edit.png" - # image_path("icons/edit.png") # => "/images/icons/edit.png" + # image_path("edit") # => "/assets/edit" + # image_path("edit.png") # => "/assets/edit.png" + # image_path("icons/edit.png") # => "/assets/icons/edit.png" # image_path("/icons/edit.png") # => "/icons/edit.png" # image_path("http://www.example.com/img/edit.png") # => "http://www.example.com/img/edit.png" # @@ -276,15 +274,21 @@ 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) - asset_paths.compute_public_path(source, 'images') + source.present? ? 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 + # Computes the full URL to an image asset. + # This will use +image_path+ internally, so most of their behaviors will be the same. + def image_url(source) + URI.join(current_host, path_to_image(source)).to_s + end + alias_method :url_to_image, :image_url # aliased to avoid conflicts with an image_url named route + # Computes the path to a video asset in the public videos directory. # Full paths from the document root will be passed through. # Used internally by +video_tag+ to build the video path. # - # ==== Examples # video_path("hd") # => /videos/hd # video_path("hd.avi") # => /videos/hd.avi # video_path("trailers/hd.avi") # => /videos/trailers/hd.avi @@ -295,11 +299,17 @@ module ActionView end alias_method :path_to_video, :video_path # aliased to avoid conflicts with a video_path named route + # Computes the full URL to a video asset in the public videos directory. + # This will use +video_path+ internally, so most of their behaviors will be the same. + def video_url(source) + URI.join(current_host, path_to_video(source)).to_s + end + alias_method :url_to_video, :video_url # aliased to avoid conflicts with an video_url named route + # Computes the path to an audio asset in the public audios directory. # Full paths from the document root will be passed through. # Used internally by +audio_tag+ to build the audio path. # - # ==== Examples # audio_path("horse") # => /audios/horse # audio_path("horse.wav") # => /audios/horse.wav # audio_path("sounds/horse.wav") # => /audios/sounds/horse.wav @@ -310,8 +320,35 @@ module ActionView end alias_method :path_to_audio, :audio_path # aliased to avoid conflicts with an audio_path named route + # Computes the full URL to an audio asset in the public audios directory. + # This will use +audio_path+ internally, so most of their behaviors will be the same. + def audio_url(source) + URI.join(current_host, path_to_audio(source)).to_s + end + alias_method :url_to_audio, :audio_url # aliased to avoid conflicts with an audio_url named route + + # Computes the path to a font asset. + # Full paths from the document root will be passed through. + # + # font_path("font") # => /assets/font + # font_path("font.ttf") # => /assets/font.ttf + # font_path("dir/font.ttf") # => /assets/dir/font.ttf + # font_path("/dir/font.ttf") # => /dir/font.ttf + # font_path("http://www.example.com/dir/font.ttf") # => http://www.example.com/dir/font.ttf + def font_path(source) + asset_paths.compute_public_path(source, 'fonts') + end + alias_method :path_to_font, :font_path # aliased to avoid conflicts with an font_path named route + + # Computes the full URL to a font asset. + # This will use +font_path+ internally, so most of their behaviors will be the same. + def font_url(source) + URI.join(current_host, path_to_font(source)).to_s + end + alias_method :url_to_font, :font_url # aliased to avoid conflicts with an font_url named route + # Returns an html image tag for the +source+. The +source+ can be a full - # path or a file that exists in your public images directory. + # path or a file. # # ==== Options # You can add HTML attributes using the +options+. The +options+ supports @@ -322,33 +359,25 @@ module ActionView # * <tt>:size</tt> - Supplied as "{Width}x{Height}", so "30x45" becomes # width="30" and height="45". <tt>:size</tt> will be ignored if the # value is not in the correct format. - # * <tt>:mouseover</tt> - Set an alternate image to be used when the onmouseover - # event is fired, and sets the original image to be replaced onmouseout. - # This can be used to implement an easy image toggle that fires on onmouseover. # - # ==== Examples # image_tag("icon") # => - # <img src="/images/icon" alt="Icon" /> + # <img src="/assets/icon" alt="Icon" /> # image_tag("icon.png") # => - # <img src="/images/icon.png" alt="Icon" /> + # <img src="/assets/icon.png" alt="Icon" /> # image_tag("icon.png", :size => "16x10", :alt => "Edit Entry") # => - # <img src="/images/icon.png" width="16" height="10" alt="Edit Entry" /> + # <img src="/assets/icon.png" width="16" height="10" alt="Edit Entry" /> # image_tag("/icons/icon.gif", :size => "16x16") # => # <img src="/icons/icon.gif" width="16" height="16" alt="Icon" /> # image_tag("/icons/icon.gif", :height => '32', :width => '32') # => # <img alt="Icon" height="32" src="/icons/icon.gif" width="32" /> # image_tag("/icons/icon.gif", :class => "menu_icon") # => # <img alt="Icon" class="menu_icon" src="/icons/icon.gif" /> - # image_tag("mouse.png", :mouseover => "/images/mouse_over.png") # => - # <img src="/images/mouse.png" onmouseover="this.src='/images/mouse_over.png'" onmouseout="this.src='/images/mouse.png'" alt="Mouse" /> - # image_tag("mouse.png", :mouseover => image_path("mouse_over.png")) # => - # <img src="/images/mouse.png" onmouseover="this.src='/images/mouse_over.png'" onmouseout="this.src='/images/mouse.png'" alt="Mouse" /> - def image_tag(source, options = {}) - options.symbolize_keys! + def image_tag(source, options={}) + options = options.symbolize_keys src = options[:src] = path_to_image(source) - unless src =~ /^cid:/ + unless src =~ /^(?:cid|data):/ || src.blank? options[:alt] = options.fetch(:alt){ image_alt(src) } end @@ -356,11 +385,6 @@ module ActionView options[:width], options[:height] = size.split("x") if size =~ %r{^\d+x\d+$} end - if mouseover = options.delete(:mouseover) - options[:onmouseover] = "this.src='#{path_to_image(mouseover)}'" - options[:onmouseout] = "this.src='#{src}'" - end - tag("img", options) end @@ -384,7 +408,6 @@ module ActionView # width="30" and height="45". <tt>:size</tt> will be ignored if the # value is not in the correct format. # - # ==== Examples # video_tag("trailer") # => # <video src="/videos/trailer" /> # video_tag("trailer.ogg") # => @@ -392,31 +415,24 @@ module ActionView # video_tag("trailer.ogg", :controls => true, :autobuffer => true) # => # <video autobuffer="autobuffer" controls="controls" src="/videos/trailer.ogg" /> # video_tag("trailer.m4v", :size => "16x10", :poster => "screenshot.png") # => - # <video src="/videos/trailer.m4v" width="16" height="10" poster="/images/screenshot.png" /> + # <video src="/videos/trailer.m4v" width="16" height="10" poster="/assets/screenshot.png" /> # video_tag("/trailers/hd.avi", :size => "16x16") # => # <video src="/trailers/hd.avi" width="16" height="16" /> # video_tag("/trailers/hd.avi", :height => '32', :width => '32') # => # <video height="32" src="/trailers/hd.avi" width="32" /> + # video_tag("trailer.ogg", "trailer.flv") # => + # <video><source src="/videos/trailer.ogg" /><source src="/videos/trailer.flv" /></video> # video_tag(["trailer.ogg", "trailer.flv"]) # => - # <video><source src="trailer.ogg" /><source src="trailer.ogg" /><source src="trailer.flv" /></video> - # video_tag(["trailer.ogg", "trailer.flv"] :size => "160x120") # => - # <video height="120" width="160"><source src="trailer.ogg" /><source src="trailer.flv" /></video> - def video_tag(sources, options = {}) - options.symbolize_keys! - - options[:poster] = path_to_image(options[:poster]) if options[:poster] - - if size = options.delete(:size) - options[:width], options[:height] = size.split("x") if size =~ %r{^\d+x\d+$} - end + # <video><source src="/videos/trailer.ogg" /><source src="/videos/trailer.flv" /></video> + # video_tag(["trailer.ogg", "trailer.flv"], :size => "160x120") # => + # <video height="120" width="160"><source src="/videos/trailer.ogg" /><source src="/videos/trailer.flv" /></video> + def video_tag(*sources) + multiple_sources_tag('video', sources) do |options| + options[:poster] = path_to_image(options[:poster]) if options[:poster] - if sources.is_a?(Array) - content_tag("video", options) do - sources.map { |source| tag("source", :src => source) }.join.html_safe + if size = options.delete(:size) + options[:width], options[:height] = size.split("x") if size =~ %r{^\d+x\d+$} end - else - options[:src] = path_to_video(sources) - tag("video", options) end end @@ -424,17 +440,16 @@ module ActionView # The +source+ can be full path or file that exists in # your public audios directory. # - # ==== Examples - # audio_tag("sound") # => - # <audio src="/audios/sound" /> - # audio_tag("sound.wav") # => - # <audio src="/audios/sound.wav" /> - # audio_tag("sound.wav", :autoplay => true, :controls => true) # => - # <audio autoplay="autoplay" controls="controls" src="/audios/sound.wav" /> - def audio_tag(source, options = {}) - options.symbolize_keys! - options[:src] = path_to_audio(source) - tag("audio", options) + # audio_tag("sound") # => + # <audio src="/audios/sound" /> + # audio_tag("sound.wav") # => + # <audio src="/audios/sound.wav" /> + # audio_tag("sound.wav", :autoplay => true, :controls => true) # => + # <audio autoplay="autoplay" controls="controls" src="/audios/sound.wav" /> + # audio_tag("sound.wav", "sound.mid") # => + # <audio><source src="/audios/sound.wav" /><source src="/audios/sound.mid" /></audio> + def audio_tag(*sources) + multiple_sources_tag('audio', sources) end private @@ -442,6 +457,26 @@ module ActionView def asset_paths @asset_paths ||= AssetTagHelper::AssetPaths.new(config, controller) end + + def multiple_sources_tag(type, sources) + options = sources.extract_options!.symbolize_keys + sources.flatten! + + yield options if block_given? + + if sources.size > 1 + content_tag(type, options) do + safe_join sources.map { |source| tag("source", :src => send("path_to_#{type}", source)) } + end + else + options[:src] = send("path_to_#{type}", sources.first) + content_tag(type, nil, options) + end + end + + def current_host + url_for(:only_path => false) + end end end end |