diff options
| -rw-r--r-- | actionview/CHANGELOG.md | 4 | ||||
| -rw-r--r-- | actionview/lib/action_view/helpers/asset_tag_helper.rb | 18 | ||||
| -rw-r--r-- | actionview/test/template/asset_tag_helper_test.rb | 5 |
3 files changed, 24 insertions, 3 deletions
diff --git a/actionview/CHANGELOG.md b/actionview/CHANGELOG.md index e618183129..5bc93fcb5b 100644 --- a/actionview/CHANGELOG.md +++ b/actionview/CHANGELOG.md @@ -1,3 +1,7 @@ +* Add `srcset` option to `image_tag` helper. + + *Roberto Miranda* + * Fix issues with scopes and engine on `current_page?` method. Fixes #29401. diff --git a/actionview/lib/action_view/helpers/asset_tag_helper.rb b/actionview/lib/action_view/helpers/asset_tag_helper.rb index c21fe782c6..3a854e82d3 100644 --- a/actionview/lib/action_view/helpers/asset_tag_helper.rb +++ b/actionview/lib/action_view/helpers/asset_tag_helper.rb @@ -203,13 +203,15 @@ module ActionView # ==== Options # # You can add HTML attributes using the +options+. The +options+ supports - # two additional keys for convenience and conformance: + # additional keys for convenience and conformance: # # * <tt>:alt</tt> - If no alt text is given, the file name part of the # +source+ is used (capitalized and without the extension) # * <tt>:size</tt> - Supplied as "{Width}x{Height}" or "{Number}", so "30x45" becomes # width="30" and height="45", and "50" becomes width="50" and height="50". # <tt>:size</tt> will be ignored if the value is not in the correct format. + # * <tt>:srcset</tt> - If supplied as a hash or array of <tt>[source, descriptor]</tt> + # pairs, each image path will be expanded before the list is formatted as a string. # # ==== Examples # @@ -227,16 +229,28 @@ module ActionView # # => <img alt="Icon" class="menu_icon" src="/icons/icon.gif" /> # image_tag("/icons/icon.gif", data: { title: 'Rails Application' }) # # => <img data-title="Rails Application" src="/icons/icon.gif" /> + # image_tag("icon.png", srcset: { "icon_2x.png" => "2x", "icon_4x.png" => "4x" }) + # # => <img src="/assets/icon.png" srcset="/assets/icon_2x.png 2x, /assets/icon_4x.png 4x"> + # image_tag("pic.jpg", srcset: [["pic_1024.jpg", "1024w"], ["pic_1980.jpg", "1980w"]], sizes: "100vw") + # # => <img src="/assets/pic.jpg" srcset="/assets/pic_1024.jpg 1024w, /assets/pic_1980.jpg 1980w" sizes="100vw"> def image_tag(source, options = {}) options = options.symbolize_keys check_for_image_tag_errors(options) + skip_pipeline = options.delete(:skip_pipeline) - src = options[:src] = path_to_image(source, skip_pipeline: options.delete(:skip_pipeline)) + src = options[:src] = path_to_image(source, skip_pipeline: skip_pipeline) unless src.start_with?("cid:") || src.start_with?("data:") || src.blank? options[:alt] = options.fetch(:alt) { image_alt(src) } end + if options[:srcset] && !options[:srcset].is_a?(String) + options[:srcset] = options[:srcset].map do |src, size| + src_path = path_to_image(src, skip_pipeline: skip_pipeline) + "#{src_path} #{size}" + end.join(", ") + end + options[:width], options[:height] = extract_dimensions(options.delete(:size)) if options[:size] tag("img", options) end diff --git a/actionview/test/template/asset_tag_helper_test.rb b/actionview/test/template/asset_tag_helper_test.rb index 6093a4e660..d1190b1bd7 100644 --- a/actionview/test/template/asset_tag_helper_test.rb +++ b/actionview/test/template/asset_tag_helper_test.rb @@ -197,7 +197,10 @@ class AssetTagHelperTest < ActionView::TestCase %(image_tag("mouse.png", :alt => nil)) => %(<img src="/images/mouse.png" />), %(image_tag("data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==", :alt => nil)) => %(<img src="data:image/gif;base64,R0lGODlhAQABAID/AMDAwAAAACH5BAEAAAAALAAAAAABAAEAAAICRAEAOw==" />), %(image_tag("")) => %(<img src="" />), - %(image_tag("gold.png", data: { title: 'Rails Application' })) => %(<img data-title="Rails Application" src="/images/gold.png" alt="Gold" />) + %(image_tag("gold.png", data: { title: 'Rails Application' })) => %(<img data-title="Rails Application" src="/images/gold.png" alt="Gold" />), + %(image_tag("rss.gif", srcset: "/assets/pic_640.jpg 640w, /assets/pic_1024.jpg 1024w")) => %(<img srcset="/assets/pic_640.jpg 640w, /assets/pic_1024.jpg 1024w" src="/images/rss.gif" alt="Rss" />), + %(image_tag("rss.gif", srcset: { "pic_640.jpg" => "640w", "pic_1024.jpg" => "1024w" })) => %(<img srcset="/images/pic_640.jpg 640w, /images/pic_1024.jpg 1024w" src="/images/rss.gif" alt="Rss" />), + %(image_tag("rss.gif", srcset: [["pic_640.jpg", "640w"], ["pic_1024.jpg", "1024w"]])) => %(<img srcset="/images/pic_640.jpg 640w, /images/pic_1024.jpg 1024w" src="/images/rss.gif" alt="Rss" />) } FaviconLinkToTag = { |