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Improve image zoom functionality to skip small icons based on natural dimensions and enhance hover overlay effects

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interlope committed 2026-05-30 03:31:52 +02:00
1 parent f54c05bfbb
commit f8aabd35a6
2 files changed
+36 -14
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css/style.css
+23 -10
View File
@@ -1227,26 +1227,39 @@ footer.footer-modern a:hover {
position: relative;
display: inline-block;
cursor: zoom-in;
/* clip the overlay to the image bounds */
overflow: hidden;
overflow: hidden; /* clips both pseudo-elements to image bounds */
}
/* Full-image dark overlay with centred magnifier on hover.
Stroke-based SVG (24×24 viewBox, no fill) stays crisp at any rendered size. */
.zoomable-wrap::after {
/* ::before — dark overlay */
.zoomable-wrap::before {
content: '';
position: absolute;
inset: 0;
background-color: rgba(0, 0, 0, 0.38);
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3Cline x1='11' y1='8' x2='11' y2='14'/%3E%3Cline x1='8' y1='11' x2='14' y2='11'/%3E%3C/svg%3E");
background-position: center;
background-size: min(44px, 25%);
background-repeat: no-repeat;
background: rgba(0, 0, 0, 0.38);
opacity: 0;
transition: opacity 0.2s ease;
pointer-events: none;
z-index: 1;
}
/* ::after — stroke-based magnifier, centred, fixed 36 px.
Strokes render as vectors so no pixelation at any display size. */
.zoomable-wrap::after {
content: '';
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
width: 36px;
height: 36px;
background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='1.75' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='8'/%3E%3Cline x1='21' y1='21' x2='16.65' y2='16.65'/%3E%3Cline x1='11' y1='8' x2='11' y2='14'/%3E%3Cline x1='8' y1='11' x2='14' y2='11'/%3E%3C/svg%3E") center / contain no-repeat;
opacity: 0;
transition: opacity 0.2s ease;
pointer-events: none;
z-index: 2;
}
.zoomable-wrap:hover::before,
.zoomable-wrap:hover::after {
opacity: 1;
}
index.php
+13 -4
View File
@@ -368,16 +368,25 @@
document.body.style.overflow = '';
}
Array.prototype.forEach.call(images, function (el) {
// Skip icons / tiny images — not worth zooming
if (el.offsetWidth < 80 && el.offsetHeight < 80) return;
function wrapImage(el) {
// Skip icons / tiny images using natural dimensions (reliable after load)
if (el.naturalWidth > 0 && el.naturalWidth < 100) return;
if (el.naturalHeight > 0 && el.naturalHeight < 100) return;
// Wrap in a span so CSS can attach the hover overlay via ::after
var wrap = document.createElement('span');
wrap.className = 'zoomable-wrap';
el.parentNode.insertBefore(wrap, el);
wrap.appendChild(el);
el.addEventListener('click', function () { open(el.src, el.alt); });
}
Array.prototype.forEach.call(images, function (el) {
// If already loaded (e.g. from cache) act immediately; otherwise wait
if (el.complete && el.naturalWidth) {
wrapImage(el);
} else {
el.addEventListener('load', function () { wrapImage(el); });
}
});
overlay.addEventListener('click', close);