From 585e4617e85abf057b6ba50750d295d0c6e2458c Mon Sep 17 00:00:00 2001
From: syeopite <syeopite@syeopite.dev>
Date: Thu, 14 Oct 2021 08:18:44 -0700
Subject: [PATCH] Lazy load (some) images

---
 src/invidious/comments.cr               |  6 +++---
 src/invidious/mixes.cr                  |  2 +-
 src/invidious/playlists.cr              |  2 +-
 src/invidious/views/components/item.ecr | 10 +++++-----
 src/invidious/views/watch.ecr           |  2 +-
 5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/src/invidious/comments.cr b/src/invidious/comments.cr
index a5506b03..9c788253 100644
--- a/src/invidious/comments.cr
+++ b/src/invidious/comments.cr
@@ -329,7 +329,7 @@ def template_youtube_comments(comments, locale, thin_mode, is_replies = false)
       html << <<-END_HTML
       <div class="pure-g" style="width:100%">
         <div class="channel-profile pure-u-4-24 pure-u-md-2-24">
-          <img style="margin-right:1em;margin-top:1em;width:90%" src="#{author_thumbnail}">
+          <img loading="lazy" style="margin-right:1em;margin-top:1em;width:90%" src="#{author_thumbnail}">
         </div>
         <div class="pure-u-20-24 pure-u-md-22-24">
           <p>
@@ -349,7 +349,7 @@ def template_youtube_comments(comments, locale, thin_mode, is_replies = false)
           html << <<-END_HTML
           <div class="pure-g">
             <div class="pure-u-1 pure-u-md-1-2">
-              <img style="width:100%" src="/ggpht#{URI.parse(attachment["url"].as_s).request_target}">
+              <img loading="lazy" style="width:100%" src="/ggpht#{URI.parse(attachment["url"].as_s).request_target}">
             </div>
           </div>
           END_HTML
@@ -410,7 +410,7 @@ def template_youtube_comments(comments, locale, thin_mode, is_replies = false)
         html << <<-END_HTML
           <span class="creator-heart-container" title="#{translate(locale, "`x` marked it with a ❤", child["creatorHeart"]["creatorName"].as_s)}">
               <div class="creator-heart">
-                  <img class="creator-heart-background-hearted" src="#{creator_thumbnail}"></img>
+                  <img loading="lazy" class="creator-heart-background-hearted" src="#{creator_thumbnail}"></img>
                   <div class="creator-heart-small-hearted">
                       <div class="icon ion-ios-heart creator-heart-small-container"></div>
                   </div>
diff --git a/src/invidious/mixes.cr b/src/invidious/mixes.cr
index 55b01174..63ea434f 100644
--- a/src/invidious/mixes.cr
+++ b/src/invidious/mixes.cr
@@ -97,7 +97,7 @@ def template_mix(mix)
       <li class="pure-menu-item">
         <a href="/watch?v=#{video["videoId"]}&list=#{mix["mixId"]}">
           <div class="thumbnail">
-              <img class="thumbnail" src="/vi/#{video["videoId"]}/mqdefault.jpg">
+              <img loading="lazy" class="thumbnail" src="/vi/#{video["videoId"]}/mqdefault.jpg">
               <p class="length">#{recode_length_seconds(video["lengthSeconds"].as_i)}</p>
           </div>
           <p style="width:100%">#{video["title"]}</p>
diff --git a/src/invidious/playlists.cr b/src/invidious/playlists.cr
index 5034844e..7940dc1f 100644
--- a/src/invidious/playlists.cr
+++ b/src/invidious/playlists.cr
@@ -535,7 +535,7 @@ def template_playlist(playlist)
       <li class="pure-menu-item" id="#{video["videoId"]}">
         <a href="/watch?v=#{video["videoId"]}&list=#{playlist["playlistId"]}&index=#{video["index"]}">
           <div class="thumbnail">
-              <img class="thumbnail" src="/vi/#{video["videoId"]}/mqdefault.jpg">
+              <img loading="lazy" class="thumbnail" src="/vi/#{video["videoId"]}/mqdefault.jpg">
               <p class="length">#{recode_length_seconds(video["lengthSeconds"].as_i)}</p>
           </div>
           <p style="width:100%">#{video["title"]}</p>
diff --git a/src/invidious/views/components/item.ecr b/src/invidious/views/components/item.ecr
index d084bfd4..5788bf51 100644
--- a/src/invidious/views/components/item.ecr
+++ b/src/invidious/views/components/item.ecr
@@ -5,7 +5,7 @@
             <a href="/channel/<%= item.ucid %>">
                 <% if !env.get("preferences").as(Preferences).thin_mode %>
                     <center>
-                        <img style="width:56.25%" src="/ggpht<%= URI.parse(item.author_thumbnail).request_target.gsub(/=s\d+/, "=s176") %>"/>
+                        <img loading="lazy" style="width:56.25%" src="/ggpht<%= URI.parse(item.author_thumbnail).request_target.gsub(/=s\d+/, "=s176") %>"/>
                     </center>
                 <% end %>
                 <p dir="auto"><%= HTML.escape(item.author) %></p>
@@ -23,7 +23,7 @@
             <a style="width:100%" href="<%= url %>">
                 <% if !env.get("preferences").as(Preferences).thin_mode %>
                     <div class="thumbnail">
-                        <img class="thumbnail" src="<%= URI.parse(item.thumbnail || "/").request_target %>"/>
+                        <img loading="lazy" class="thumbnail" src="<%= URI.parse(item.thumbnail || "/").request_target %>"/>
                         <p class="length"><%= number_with_separator(item.video_count) %> videos</p>
                     </div>
                 <% end %>
@@ -36,7 +36,7 @@
             <a href="/watch?v=<%= item.id %>&list=<%= item.rdid %>">
                 <% if !env.get("preferences").as(Preferences).thin_mode %>
                     <div class="thumbnail">
-                        <img class="thumbnail" src="/vi/<%= item.id %>/mqdefault.jpg"/>
+                        <img loading="lazy" class="thumbnail" src="/vi/<%= item.id %>/mqdefault.jpg"/>
                         <% if item.length_seconds != 0 %>
                             <p class="length"><%= recode_length_seconds(item.length_seconds) %></p>
                         <% end %>
@@ -51,7 +51,7 @@
             <a style="width:100%" href="/watch?v=<%= item.id %>&list=<%= item.plid %>&index=<%= item.index %>">
                 <% if !env.get("preferences").as(Preferences).thin_mode %>
                     <div class="thumbnail">
-                        <img class="thumbnail" src="/vi/<%= item.id %>/mqdefault.jpg"/>
+                        <img loading="lazy" class="thumbnail" src="/vi/<%= item.id %>/mqdefault.jpg"/>
                         <% if plid = env.get?("remove_playlist_items") %>
                             <form data-onsubmit="return_false" action="/playlist_ajax?action_remove_video=1&set_video_id=<%= item.index %>&playlist_id=<%= plid %>&referer=<%= env.get("current_page") %>" method="post">
                                 <input type="hidden" name="csrf_token" value="<%= URI.encode_www_form(env.get?("csrf_token").try &.as(String) || "") %>">
@@ -114,7 +114,7 @@
             <a style="width:100%" href="/watch?v=<%= item.id %>">
                 <% if !env.get("preferences").as(Preferences).thin_mode %>
                     <div class="thumbnail">
-                        <img class="thumbnail" src="/vi/<%= item.id %>/mqdefault.jpg"/>
+                        <img loading="lazy" class="thumbnail" src="/vi/<%= item.id %>/mqdefault.jpg"/>
                         <% if env.get? "show_watched" %>
                             <form data-onsubmit="return_false" action="/watch_ajax?action_mark_watched=1&id=<%= item.id %>&referer=<%= env.get("current_page") %>" method="post">
                                 <input type="hidden" name="csrf_token" value="<%= URI.encode_www_form(env.get?("csrf_token").try &.as(String) || "") %>">
diff --git a/src/invidious/views/watch.ecr b/src/invidious/views/watch.ecr
index 68e7eb80..398e25b6 100644
--- a/src/invidious/views/watch.ecr
+++ b/src/invidious/views/watch.ecr
@@ -303,7 +303,7 @@ we're going to need to do it here in order to allow for translations.
                             <a href="/watch?v=<%= rv["id"] %>">
                                 <% if !env.get("preferences").as(Preferences).thin_mode %>
                                     <div class="thumbnail">
-                                        <img class="thumbnail" src="/vi/<%= rv["id"] %>/mqdefault.jpg">
+                                        <img loading="lazy" class="thumbnail" src="/vi/<%= rv["id"] %>/mqdefault.jpg">
                                         <p class="length"><%= recode_length_seconds(rv["length_seconds"]?.try &.to_i? || 0) %></p>
                                     </div>
                                 <% end %>