Use `<use />` to render transparent SVG logo instead of inserting it (#10845)

app/helpers/stream_entries_helper.rb

@@ -16,24 +16,28 @@ module StreamEntriesHelper
     if user_signed_in?
       if account.id == current_user.account_id
         link_to settings_profile_url, class: 'button logo-button' do
-          safe_join([render(file: Rails.root.join('app', 'javascript', 'images', 'logo.svg')), t('settings.edit_profile')])
+          safe_join([svg_logo, t('settings.edit_profile')])
         end
       elsif current_account.following?(account) || current_account.requested?(account)
         link_to account_unfollow_path(account), class: 'button logo-button button--destructive', data: { method: :post } do
-          safe_join([render(file: Rails.root.join('app', 'javascript', 'images', 'logo.svg')), t('accounts.unfollow')])
+          safe_join([svg_logo, t('accounts.unfollow')])
         end
       elsif !(account.memorial? || account.moved?)
         link_to account_follow_path(account), class: "button logo-button#{account.blocking?(current_account) ? ' disabled' : ''}", data: { method: :post } do
-          safe_join([render(file: Rails.root.join('app', 'javascript', 'images', 'logo.svg')), t('accounts.follow')])
+          safe_join([svg_logo, t('accounts.follow')])
         end
       end
     elsif !(account.memorial? || account.moved?)
       link_to account_remote_follow_path(account), class: 'button logo-button modal-button', target: '_new' do
-        safe_join([render(file: Rails.root.join('app', 'javascript', 'images', 'logo.svg')), t('accounts.follow')])
+        safe_join([svg_logo, t('accounts.follow')])
       end
     end
   end
 
+  def svg_logo
+    content_tag(:svg, tag(:use, 'xlink:href' => '#mastodon-svg-logo'), 'viewBox' => '0 0 216.4144 232.00976')
+  end
+
   def account_badge(account, all: false)
     if account.bot?
       content_tag(:div, content_tag(:div, t('accounts.roles.bot'), class: 'account-role bot'), class: 'roles')

app/javascript/images/logo_transparent.svg

@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 216.4144 232.00976"><path d="M107.86523 0C78.203984.2425 49.672422 3.4535937 33.044922 11.089844c0 0-32.97656262 14.752031-32.97656262 65.082031 0 11.525-.224375 25.306175.140625 39.919925 1.19750002 49.22 9.02375002 97.72843 54.53124962 109.77343 20.9825 5.55375 38.99711 6.71547 53.505856 5.91797 26.31125-1.45875 41.08203-9.38867 41.08203-9.38867l-.86914-19.08984s-18.80171 5.92758-39.91796 5.20508c-20.921254-.7175-43.006879-2.25516-46.390629-27.94141-.3125-2.25625-.46875-4.66938-.46875-7.20313 0 0 20.536953 5.0204 46.564449 6.21289 15.915.73001 30.8393-.93343 45.99805-2.74218 29.07-3.47125 54.38125-21.3818 57.5625-37.74805 5.0125-25.78125 4.59961-62.916015 4.59961-62.916015 0-50.33-32.97461-65.082031-32.97461-65.082031C166.80539 3.4535938 138.255.2425 108.59375 0h-.72852zM74.296875 39.326172c12.355 0 21.710234 4.749297 27.896485 14.248047l6.01367 10.080078 6.01563-10.080078c6.185-9.49875 15.54023-14.248047 27.89648-14.248047 10.6775 0 19.28156 3.753672 25.85156 11.076172 6.36875 7.3225 9.53907 17.218828 9.53907 29.673828v60.941408h-24.14454V81.869141c0-12.46875-5.24453-18.798829-15.73828-18.798829-11.6025 0-17.41797 7.508516-17.41797 22.353516v32.375002H96.207031V85.423828c0-14.845-5.815468-22.353515-17.417969-22.353516-10.49375 0-15.740234 6.330079-15.740234 18.798829v59.148439H38.904297V80.076172c0-12.455 3.171016-22.351328 9.541015-29.673828 6.568751-7.3225 15.172813-11.076172 25.851563-11.076172z" fill="#fff"/></svg>
+<svg xmlns="http://www.w3.org/2000/svg"><symbol id="mastodon-svg-logo" viewBox="0 0 216.4144 232.00976"><path d="M107.86523 0C78.203984.2425 49.672422 3.4535937 33.044922 11.089844c0 0-32.97656262 14.752031-32.97656262 65.082031 0 11.525-.224375 25.306175.140625 39.919925 1.19750002 49.22 9.02375002 97.72843 54.53124962 109.77343 20.9825 5.55375 38.99711 6.71547 53.505856 5.91797 26.31125-1.45875 41.08203-9.38867 41.08203-9.38867l-.86914-19.08984s-18.80171 5.92758-39.91796 5.20508c-20.921254-.7175-43.006879-2.25516-46.390629-27.94141-.3125-2.25625-.46875-4.66938-.46875-7.20313 0 0 20.536953 5.0204 46.564449 6.21289 15.915.73001 30.8393-.93343 45.99805-2.74218 29.07-3.47125 54.38125-21.3818 57.5625-37.74805 5.0125-25.78125 4.59961-62.916015 4.59961-62.916015 0-50.33-32.97461-65.082031-32.97461-65.082031C166.80539 3.4535938 138.255.2425 108.59375 0h-.72852zM74.296875 39.326172c12.355 0 21.710234 4.749297 27.896485 14.248047l6.01367 10.080078 6.01563-10.080078c6.185-9.49875 15.54023-14.248047 27.89648-14.248047 10.6775 0 19.28156 3.753672 25.85156 11.076172 6.36875 7.3225 9.53907 17.218828 9.53907 29.673828v60.941408h-24.14454V81.869141c0-12.46875-5.24453-18.798829-15.73828-18.798829-11.6025 0-17.41797 7.508516-17.41797 22.353516v32.375002H96.207031V85.423828c0-14.845-5.815468-22.353515-17.417969-22.353516-10.49375 0-15.740234 6.330079-15.740234 18.798829v59.148439H38.904297V80.076172c0-12.455 3.171016-22.351328 9.541015-29.673828 6.568751-7.3225 15.172813-11.076172 25.851563-11.076172z" /></symbol></svg>

app/javascript/styles/mastodon-light/diff.scss

@@ -306,7 +306,7 @@
 .button.logo-button {
   color: $white;
 
-  svg path:first-child {
+  svg {
     fill: $white;
   }
 }

app/javascript/styles/mastodon/containers.scss

@@ -359,10 +359,6 @@
 
       .logo-button {
         background-color: $secondary-text-color;
-
-        svg path:last-child {
-          fill: $secondary-text-color;
-        }
       }
     }
 

app/javascript/styles/mastodon/footer.scss

@@ -122,10 +122,7 @@
         height: 36px;
         width: auto;
         margin: 0 auto;
-
+        fill: lighten($ui-base-color, 34%);
-        path {
-          fill: lighten($ui-base-color, 34%);
-        }
       }
 
       &:hover,

app/javascript/styles/mastodon/stream_entries.scss

@@ -89,40 +89,21 @@
     height: auto;
     vertical-align: middle;
     margin-right: 5px;
-
+    fill: $primary-text-color;
-    path:first-child {
-      fill: $primary-text-color;
-    }
-
-    path:last-child {
-      fill: $ui-highlight-color;
-    }
   }
 
   &:active,
   &:focus,
   &:hover {
     background: lighten($ui-highlight-color, 10%);
-
-    svg path:last-child {
-      fill: lighten($ui-highlight-color, 10%);
-    }
   }
 
   &:disabled,
   &.disabled {
-    svg path:last-child {
-      fill: $ui-primary-color;
-    }
-
     &:active,
     &:focus,
     &:hover {
       background: $ui-primary-color;
-
-      svg path:last-child {
-        fill: $ui-primary-color;
-      }
     }
   }
 
@@ -131,10 +112,6 @@
     &:focus,
     &:hover {
       background: $error-red;
-
-      svg path:last-child {
-        fill: $error-red;
-      }
     }
   }
 

app/views/layouts/application.html.haml

@@ -33,3 +33,6 @@
 
   %body{ class: body_classes }
     = content_for?(:content) ? yield(:content) : yield
+
+    %div{ style: 'display: none'}
+      = render file: Rails.root.join('app', 'javascript', 'images', 'logo_transparent.svg')

app/views/layouts/public.html.haml

@@ -38,9 +38,7 @@
               %li= link_to t('about.api'), 'https://docs.joinmastodon.org/api/guidelines/'
           .column-2
             %h4= link_to t('about.what_is_mastodon'), 'https://joinmastodon.org/'
-
+            = link_to svg_logo, root_url, class: 'brand'
-            = link_to root_url, class: 'brand' do
-              = render file: Rails.root.join('app', 'javascript', 'images', 'logo_transparent.svg')
           .column-3
             %h4= site_hostname
             %ul