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perf: pre-render student popover cards server-side into <template> tags — zero per-hover requests

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Pontoporeia
2026-04-24 13:17:47 +02:00
parent 53c3127140
commit e590d8e035
5 changed files with 101 additions and 30 deletions
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51
app/templates/partials/repertoire-index.php
View File

@@ -31,6 +31,11 @@ ksort($studentWorks);
// Legacy alias for single-id use
$studentMap = array_map(fn($ids) => $ids[0], $studentWorks);
// Batch-fetch all preview data for visible students (one query)
$previewsByAuthor = !empty($studentWorks)
? $db->getThesesForAuthors(array_keys($studentWorks))
: [];
/**
* Build the toggle URL for a filter button.
* Toggles $value in $dim; keeps all other active filters intact.
@@ -178,17 +183,14 @@ $hx = 'hx-target="#repertoire-index" hx-swap="outerHTML" hx-push-url="true" hx-i
<?php foreach ($studentWorks as $name => $ids): ?>
<?php
$firstId = $ids[0];
$previewUrl = '/repertoire/student-preview?name=' . urlencode($name);
$targetUrl = count($ids) === 1 ? '/tfe?id=' . $firstId : '#';
$targetUrl = count($ids) === 1 ? '/tfe?id=' . $firstId : '#';
$templateId = 'sp-' . md5($name);
?>
<li class="student-entry">
<a href="<?= htmlspecialchars($targetUrl) ?>"
class="rep-entry rep-entry--link"
hx-get="<?= htmlspecialchars($previewUrl) ?>"
hx-target="#student-popover"
hx-trigger="mouseenter"
hx-swap="innerHTML"
data-student-name="<?= htmlspecialchars($name) ?>">
data-student-name="<?= htmlspecialchars($name) ?>"
data-preview="<?= htmlspecialchars($templateId) ?>">
<?= htmlspecialchars($name) ?>
</a>
</li>
@@ -222,3 +224,38 @@ $hx = 'hx-target="#repertoire-index" hx-swap="outerHTML" hx-push-url="true" hx-i
</section>
</div>
<?php foreach ($studentWorks as $name => $ids):
$templateId = 'sp-' . md5($name);
$theses = $previewsByAuthor[$name] ?? [];
if (empty($theses)) continue;
?>
<template id="<?= htmlspecialchars($templateId) ?>">
<?php foreach ($theses as $t):
$synopsis = $t['synopsis'] ?? '';
if (mb_strlen($synopsis) > 160) $synopsis = mb_substr($synopsis, 0, 157) . '…';
$meta = array_filter([$t['year'] ?? null, $t['orientation'] ?? null, $t['finality_type'] ?? null]);
?>
<a href="/tfe?id=<?= (int)$t['id'] ?>" class="student-card">
<?php if (!empty($t['banner_path'])): ?>
<div class="student-card__banner" style="background-image:url('<?= htmlspecialchars($t['banner_path']) ?>')"></div>
<?php else: ?>
<div class="student-card__banner student-card__banner--gradient">
<span class="student-card__gradient-author"><?= htmlspecialchars($t['authors'] ?? '') ?></span>
<span class="student-card__gradient-title"><?= htmlspecialchars($t['title']) ?></span>
</div>
<?php endif; ?>
<div class="student-card__body">
<p class="student-card__meta"><?= htmlspecialchars(implode(' · ', $meta)) ?></p>
<h3 class="student-card__title"><?= htmlspecialchars($t['title']) ?></h3>
<?php if (!empty($t['subtitle'])): ?>
<p class="student-card__subtitle"><?= htmlspecialchars($t['subtitle']) ?></p>
<?php endif; ?>
<?php if ($synopsis !== ''): ?>
<p class="student-card__synopsis"><?= htmlspecialchars($synopsis) ?></p>
<?php endif; ?>
</div>
</a>
<?php endforeach; ?>
</template>
<?php endforeach; ?>

45
app/templates/public/repertoire.php
View File

@@ -12,49 +12,50 @@
var popover = document.getElementById('student-popover');
var currentAnchor = null;
// Position the popover next to the hovered student entry
function positionPopover(anchor) {
var rect = anchor.getBoundingClientRect();
var rect = anchor.getBoundingClientRect();
var scrollY = window.scrollY || 0;
var scrollX = window.scrollX || 0;
// Place to the right of the column; fall back left if off-screen
var left = rect.right + scrollX + 12;
var top = rect.top + scrollY;
if (left + 320 > window.innerWidth + scrollX) {
left = rect.left + scrollX - 332;
if (left + 300 > window.innerWidth + scrollX) {
left = rect.left + scrollX - 312;
}
popover.style.left = left + 'px';
popover.style.top = top + 'px';
}
// Show popover after HTMX fills it
document.body.addEventListener('htmx:afterSwap', function (e) {
if (e.detail.target !== popover) return;
if (!popover.innerHTML.trim()) return;
function showPreview(anchor) {
var tplId = anchor.dataset.preview;
if (!tplId) return;
var tpl = document.getElementById(tplId);
if (!tpl) return;
popover.innerHTML = '';
popover.appendChild(tpl.content.cloneNode(true));
positionPopover(anchor);
popover.hidden = false;
if (currentAnchor) positionPopover(currentAnchor);
});
}
function hidePreview() {
popover.hidden = true;
currentAnchor = null;
}
// Track hovered anchor
document.body.addEventListener('mouseenter', function (e) {
var a = e.target.closest('[data-student-name]');
var a = e.target.closest('[data-preview]');
if (!a) return;
currentAnchor = a;
showPreview(a);
}, true);
// Hide when leaving BOTH the anchor and the popover
document.body.addEventListener('mouseleave', function (e) {
var a = e.target.closest('[data-student-name]');
var a = e.target.closest('[data-preview]');
var p = e.target.closest('#student-popover');
if (!a && !p) return;
// Small delay so mouse can move into popover
setTimeout(function () {
var hoverAnchor = document.querySelector('[data-student-name]:hover');
var hoverPop = document.querySelector('#student-popover:hover');
if (!hoverAnchor && !hoverPop) {
popover.hidden = true;
popover.innerHTML = '';
currentAnchor = null;
if (!document.querySelector('[data-preview]:hover') &&
!document.querySelector('#student-popover:hover')) {
hidePreview();
}
}, 120);
}, true);