a.andreev/gallery-for-aav
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Public: show loading spinner for gallery images

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Make image loading feedback visible on the public gallery so users see progress on slower connections. Add a lightweight spinner overlay for list/detail photos and clear it automatically once each image finishes or fails.
This commit is contained in:
Alexander Andreev 2026-02-20 18:50:29 +03:00
parent 48bb460749
commit 09dea4a072
1 changed files with 28 additions and 3 deletions
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31
index.php
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@ -143,6 +143,13 @@ 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}
.thumb-img-box{height:130px}
@keyframes spin{to{transform:rotate(360deg)}}
.sidebar-head{display:flex;align-items:center;justify-content:space-between;gap:10px}
.sidebar-head h3{margin:0}
.sidebar-toggle{display:none}
@ -200,8 +207,8 @@ 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><img src="?action=image&file_id=<?= (int)$photo['before_file_id'] ?>" alt=""></div><?php endif; ?>
<?php if (!empty($photo['after_file_id'])): ?><div><div class="muted">После обработки (watermark)</div><img src="?action=image&file_id=<?= (int)$photo['after_file_id'] ?>" alt=""></div><?php endif; ?>
<?php if (!empty($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)$photo['before_file_id'] ?>" alt=""></div></div><?php endif; ?>
<?php if (!empty($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=""></div></div><?php endif; ?>
</div>
<h3 style="margin-top:16px">Комментарии</h3>
@ -232,7 +239,7 @@ 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($p['before_file_id'])): ?><img src="?action=image&file_id=<?= (int)$p['before_file_id'] ?>" alt=""><?php endif; ?>
<?php if (!empty($p['before_file_id'])): ?><div class="img-box thumb-img-box is-loading"><img class="js-public-image" src="?action=image&file_id=<?= (int)$p['before_file_id'] ?>" alt=""></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>
@ -254,6 +261,24 @@ function outputWatermarked(string $path, string $mime): never
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) {
clearLoading();
}
});
})();
(() => {