From a0d7e0131d2296159887b062cf00f82701b91b46 Mon Sep 17 00:00:00 2001
From: Alexander Andreev <a.andreev@omniagency.ru>
Date: Fri, 20 Feb 2026 19:10:24 +0300
Subject: [PATCH] Public: switch to CSS-only image placeholders

Replace JS-driven loading behavior with a pure CSS skeleton background so gallery cards remain fully native links. Drop click interception and deferred JS loaders to keep photo-page navigation immediate while images are still loading.
---
 index.php | 80 ++++++-------------------------------------------------
 1 file changed, 8 insertions(+), 72 deletions(-)

diff --git a/index.php b/index.php
index a2f00e7..3d903ee 100644
--- a/index.php
+++ b/index.php
@@ -143,13 +143,12 @@ function outputWatermarked(string $path, string $mime): never
     .stack{display:grid;gap:12px;grid-template-columns:1fr}
     .cmt{border-top:1px solid #eee;padding:8px 0}
     .muted{color:#6b7280;font-size:13px}
-    .img-box{position:relative;display:block;background:#f3f4f6}
-    .img-box::before{content:'';position:absolute;left:50%;top:50%;width:28px;height:28px;margin:-14px 0 0 -14px;border:3px solid #cbd5e1;border-top-color:#1f6feb;border-radius:50%;opacity:0;pointer-events:none}
-    .img-box.is-loading::before{opacity:1;animation:spin .75s linear infinite}
-    .img-box.is-loading img{opacity:.38}
-    .img-box img{transition:opacity .2s ease}
+    .img-box{position:relative;display:block;overflow:hidden;background:linear-gradient(110deg,#eef2f7 8%,#f8fafc 18%,#eef2f7 33%);background-size:200% 100%;animation:skeleton 1.2s linear infinite}
+    .img-box img{display:block;position:relative;z-index:1}
     .thumb-img-box{height:130px}
-    @keyframes spin{to{transform:rotate(360deg)}}
+    .detail .img-box{min-height:200px;border-radius:10px;border:1px solid #e5e7eb}
+    .detail .img-box img{max-width:100%;height:auto;border:0;border-radius:0}
+    @keyframes skeleton{to{background-position:-200% 0}}
     .sidebar-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
     .sidebar-head h3{margin:0}
     .sidebar-toggle{display:none}
@@ -207,8 +206,8 @@ function outputWatermarked(string $path, string $mime): never
           <h2><?= h((string)$photo['code_name']) ?></h2>
           <p class="muted"><?= h((string)($photo['description'] ?? '')) ?></p>
           <div class="stack">
-            <?php if (!empty($photo['before_file_id'])): ?><div><div class="muted">До обработки</div><div class="img-box is-loading"><img class="js-public-image" src="?action=image&file_id=<?= (int)$photo['before_file_id'] ?>" alt="" decoding="async" fetchpriority="high"></div></div><?php endif; ?>
-            <?php if (!empty($photo['after_file_id'])): ?><div><div class="muted">После обработки (watermark)</div><div class="img-box is-loading"><img class="js-public-image" src="?action=image&file_id=<?= (int)$photo['after_file_id'] ?>" alt="" decoding="async" fetchpriority="high"></div></div><?php endif; ?>
+            <?php if (!empty($photo['before_file_id'])): ?><div><div class="muted">До обработки</div><div class="img-box"><img src="?action=image&file_id=<?= (int)$photo['before_file_id'] ?>" alt="" decoding="async" fetchpriority="high"></div></div><?php endif; ?>
+            <?php if (!empty($photo['after_file_id'])): ?><div><div class="muted">После обработки (watermark)</div><div class="img-box"><img src="?action=image&file_id=<?= (int)$photo['after_file_id'] ?>" alt="" decoding="async" fetchpriority="high"></div></div><?php endif; ?>
           </div>
 
           <h3 style="margin-top:16px">Комментарии</h3>
@@ -239,7 +238,7 @@ function outputWatermarked(string $path, string $mime): never
             <div class="cards">
               <?php foreach($photos as $p): ?>
                 <a class="card" href="?photo_id=<?= (int)$p['id'] ?>&section_id=<?= (int)$activeSectionId ?><?= $viewerToken!=='' ? '&viewer=' . urlencode($viewerToken) : '' ?>" style="text-decoration:none;color:inherit;position:relative">
-                  <?php if (!empty($p['before_file_id'])): ?><div class="img-box thumb-img-box is-loading"><img class="js-public-image js-card-image" src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==" data-src="?action=image&file_id=<?= (int)$p['before_file_id'] ?>" alt="" loading="lazy" decoding="async" fetchpriority="low"></div><?php endif; ?>
+                  <?php if (!empty($p['before_file_id'])): ?><div class="img-box thumb-img-box"><img src="?action=image&file_id=<?= (int)$p['before_file_id'] ?>" alt="" loading="lazy" decoding="async" fetchpriority="low"></div><?php endif; ?>
                   <?php if (!empty($p['after_file_id'])): ?><span title="Есть обработанная версия" style="position:absolute;top:8px;right:8px;background:rgba(31,111,235,.92);color:#fff;font-size:11px;line-height:1;padding:6px 7px;border-radius:999px">AI</span><?php endif; ?>
                   <div class="cap"><strong><?= h((string)$p['code_name']) ?></strong><br><span class="muted"><?= h((string)($p['description'] ?? '')) ?></span></div>
                 </a>
@@ -257,73 +256,10 @@ function outputWatermarked(string $path, string $mime): never
 </div>
 <script>
 (() => {
-  const loadCardImage = (img) => {
-    const src = img.dataset.src;
-    if (!src) {
-      return;
-    }
-
-    img.src = src;
-    img.removeAttribute('data-src');
-  };
-
-  const deferred = document.querySelectorAll('.js-card-image[data-src]');
-  if ('IntersectionObserver' in window) {
-    const io = new IntersectionObserver((entries) => {
-      entries.forEach((entry) => {
-        if (!entry.isIntersecting) {
-          return;
-        }
-
-        loadCardImage(entry.target);
-        io.unobserve(entry.target);
-      });
-    }, { rootMargin: '240px 0px' });
-
-    deferred.forEach((img) => io.observe(img));
-  } else {
-    deferred.forEach((img) => loadCardImage(img));
-  }
-
   document.querySelectorAll('img').forEach((img) => {
     img.addEventListener('contextmenu', (e) => e.preventDefault());
     img.addEventListener('dragstart', (e) => e.preventDefault());
   });
-
-  document.querySelectorAll('.js-public-image').forEach((img) => {
-    const box = img.closest('.img-box');
-    if (!box) {
-      return;
-    }
-
-    const clearLoading = () => {
-      box.classList.remove('is-loading');
-    };
-
-    img.addEventListener('load', clearLoading, { once: true });
-    img.addEventListener('error', clearLoading, { once: true });
-
-    if (img.complete && !img.dataset.src) {
-      clearLoading();
-    }
-  });
-
-  document.querySelectorAll('a.card').forEach((link) => {
-    link.addEventListener('click', (e) => {
-      if (e.defaultPrevented || e.button !== 0 || e.metaKey || e.ctrlKey || e.shiftKey || e.altKey) {
-        return;
-      }
-
-      const href = link.getAttribute('href');
-      if (!href) {
-        return;
-      }
-
-      e.preventDefault();
-      window.stop();
-      window.location.assign(href);
-    });
-  });
 })();
 
 (() => {