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rosary: fix mystery image timing and SVG container clipping

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Show first mystery image at the Pater Noster instead of the Gloria Patri
by removing the early lbead2 trigger. Fix IntersectionObserver to prefer
the topmost intersecting entry so short _pater sections aren't skipped.
Use full viewport height (100dvh) for the SVG container to prevent
clipping at edges.
This commit is contained in:
Alexander Bocken
2026-03-08 20:46:04 +01:00
parent df34ed0628
commit 23bd5a55ee
2 changed files with 31 additions and 24 deletions
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src/routes/[faithLang=faithLang]/[rosary=rosaryLang]/+page.svelte
+2 -3
View File
@@ -137,7 +137,6 @@ const hasMysteryImages = $derived(showImages && (allMysteryImages[selectedMyster
* @returns {number | 'before' | 'after'}
*/
function getMysteryScrollTarget(section) {
if (section === 'lbead2') return 1;
const secretMatch = section.match(/^secret(\d)/);
if (secretMatch) {
const num = parseInt(secretMatch[1]);
@@ -446,8 +445,8 @@ onMount(() => {
.rosary-visualization {
padding: 2rem 0;
position: sticky;
top: 2rem;
max-height: calc(100vh - 2rem);
top: 0;
max-height: 100dvh;
overflow-y: auto;
overflow-x: hidden;
scrollbar-width: none; /* Firefox */
src/routes/[faithLang=faithLang]/[rosary=rosaryLang]/rosaryScrollSync.js
+29 -21
View File
@@ -59,29 +59,37 @@ export function setupScrollSync({
const svgContainer = getSvgContainer();
const sectionElements = getSectionElements();
entries.forEach((entry) => {
if (entry.isIntersecting && scrollLock !== 'svg' && scrollLock !== 'click') {
// Skip observer updates when at the top — handleWindowScroll handles this
if (window.scrollY < 50) return;
if (scrollLock === 'svg' || scrollLock === 'click') return;
if (window.scrollY < 50) return;
const section = /** @type {HTMLElement} */ (entry.target).dataset.section;
if (!section) return;
setActiveSection(section);
// Scroll SVG to keep active section visible at top
if (svgContainer && sectionPositions[section] !== undefined) {
const svg = /** @type {SVGSVGElement | null} */ (svgContainer.querySelector('svg'));
if (!svg) return;
const pixelPosition = svgSectionToPixel(svg, section);
if (pixelPosition === null) return;
const targetScroll = pixelPosition - 100;
setScrollLock('prayer');
svgContainer.scrollTo({ top: Math.max(0, targetScroll), behavior: 'smooth' });
}
// Pick the topmost intersecting entry so short sections (e.g. _pater) aren't
// immediately overridden by the taller section below them
let bestEntry = null;
for (const entry of entries) {
if (!entry.isIntersecting) continue;
if (!bestEntry || entry.boundingClientRect.top < bestEntry.boundingClientRect.top) {
bestEntry = entry;
}
});
}
if (bestEntry) {
const section = /** @type {HTMLElement} */ (bestEntry.target).dataset.section;
if (!section) return;
setActiveSection(section);
// Scroll SVG to keep active section visible at top
if (svgContainer && sectionPositions[section] !== undefined) {
const svg = /** @type {SVGSVGElement | null} */ (svgContainer.querySelector('svg'));
if (!svg) return;
const pixelPosition = svgSectionToPixel(svg, section);
if (pixelPosition === null) return;
const targetScroll = pixelPosition - 100;
setScrollLock('prayer');
svgContainer.scrollTo({ top: Math.max(0, targetScroll), behavior: 'smooth' });
}
}
}, {
root: null,
rootMargin: "-20% 0px -60% 0px",