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| author | Roberto Miranda <rjmaltamar@gmail.com> | 2017-06-03 11:30:01 -0500 |
|---|---|---|
| committer | Roberto Miranda <rjmaltamar@gmail.com> | 2017-06-29 08:59:54 -0500 |
| commit | 43efae22a7a59d5fe0be599bd074c5e7d881266a (patch) | |
| tree | 46b09bb4ad1d9452f85dfe8968cb52c0910aa7c2 /actionview/lib/action_view | |
| parent | 4448873c8755524ccadd639d1a08df53496c36d7 (diff) | |
| download | rails-43efae22a7a59d5fe0be599bd074c5e7d881266a.tar.gz rails-43efae22a7a59d5fe0be599bd074c5e7d881266a.tar.bz2 rails-43efae22a7a59d5fe0be599bd074c5e7d881266a.zip | |
Add `srcset` option to `image_tag` helper
Diffstat (limited to 'actionview/lib/action_view')
| -rw-r--r-- | actionview/lib/action_view/helpers/asset_tag_helper.rb | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/actionview/lib/action_view/helpers/asset_tag_helper.rb b/actionview/lib/action_view/helpers/asset_tag_helper.rb index c21fe782c6..3d2b7e48fe 100644 --- a/actionview/lib/action_view/helpers/asset_tag_helper.rb +++ b/actionview/lib/action_view/helpers/asset_tag_helper.rb @@ -227,16 +227,30 @@ 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: "/assets/pic_640.jpg 640w, /assets/pic_1024.jpg 1024w, /assets/pic_1980.jpg 1980w", sizes: '100vw', class: 'my-image') + # <img src="/assets/ants_1980.jpg" srcset="/assets/pic_640.jpg 640w, /assets/pic_1024.jpg 1024w, /assets/pic_1980.jpg 1980w" sizes="100vw" class="my-image"> + # image_tag("icon.png", srcset: { 'pic_640.jpg' => '640w', 'pic_1024.jpg' => '1024w', 'pic_1980.jpg' => '1980w' }, sizes: '100vw', class: 'my-image') + # <img src="/assets/ants_1980.jpg" srcset="/assets/pic_640.jpg 640w, /assets/pic_1024.jpg 1024w, /assets/pic_1980.jpg 1980w" sizes="100vw" class="my-image"> + # image_tag("icon.png", srcset: [['pic_640.jpg', '640w'], ['pic_1024.jpg', '1024w'], ['pic_1980.jpg', '1980w']], sizes: '100vw', class: 'my-image') + # <img src="/assets/ants_1980.jpg" srcset="/assets/pic_640.jpg 640w, /assets/pic_1024.jpg 1024w, /assets/pic_1980.jpg 1980w" sizes="100vw" class="my-image"> 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 |