From 6f975533f075cc761184b5a7392522264eca6fc1 Mon Sep 17 00:00:00 2001
From: Ken D'Ambrosio <ken@jots.org>
Date: Thu, 18 Jun 2026 23:00:17 +0000
Subject: Add per-photo rotate-left/right widget to admin edit page

Many older photos (especially pre-EXIF-orientation cameras) are off
by a multiple of 90 degrees with no metadata to auto-correct. Each
image row in the admin file table now has rotate buttons that
physically rotate the file (auto-orienting first to normalize any
existing EXIF tag), swap the stored width/height, and clear the
cached thumbnail so it regenerates from the corrected image.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 views/admin/album.erb | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'views/admin')

diff --git a/views/admin/album.erb b/views/admin/album.erb
index 8c9ebe1..d1b8cb8 100644
--- a/views/admin/album.erb
+++ b/views/admin/album.erb
@@ -63,6 +63,7 @@
             <th>Caption</th>
             <th>Visible</th>
             <th>Cover</th>
+            <th>Rotate</th>
             <th>Delete</th>
           </tr>
         </thead>
@@ -70,6 +71,7 @@
           <% @files.each do |name| %>
             <% meta     = (@data['files'] || {})[name] || {} %>
             <% file_rel = @rel.empty? ? name : "#{@rel}/#{name}" %>
+            <% is_image = IMAGE_EXTS.include?(File.extname(name).downcase.delete_prefix('.')) %>
             <tr<%= ' class="original-file"' if meta['transcoded_to'] %>>
               <td><img src="/thumb/<%= file_rel %>" width="60" height="60" loading="lazy" style="object-fit:cover"></td>
               <td class="filename">
@@ -84,6 +86,15 @@
               <td class="cover-cell">
                 <input type="radio" name="album_cover_file" value="<%= name %>" class="cover-radio"<%= ' checked' if @data['cover'] == name %>>
               </td>
+              <td class="rotate-cell">
+                <% if is_image %>
+                  <form method="post" action="/admin/rotate/<%= @rel %>" class="rotate-form">
+                    <input type="hidden" name="file" value="<%= ERB::Util.html_escape(name) %>">
+                    <button type="submit" name="dir" value="left"  class="btn btn-sm" title="Rotate left">⟲</button>
+                    <button type="submit" name="dir" value="right" class="btn btn-sm" title="Rotate right">⟳</button>
+                  </form>
+                <% end %>
+              </td>
               <td class="delete-cell">
                 <input type="checkbox" name="file_delete[<%= name %>]" value="1" class="delete-check">
               </td>
-- 
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