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Fix mobile search results panel alignment while scrolling #312

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Fix mobile search results panel alignment while scrolling #312

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33 changes: 21 additions & 12 deletions theme/js/osl-search.js
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Original file line number Diff line number Diff line change
Expand Up @@ -30,7 +30,7 @@
if (document.getElementById('osl-search-styles')) return;
const css = `
.osl-search-panel {
position: absolute;
position: fixed;
z-index: 1055; /* above navbar/offcanvas */
min-width: 280px;
max-width: 560px;
Expand Down Expand Up @@ -275,15 +275,19 @@
}

function positionPanel(panel, inputEl) {
const r = inputEl.getBoundingClientRect();
const scrollY = window.scrollY || document.documentElement.scrollTop;
const scrollX = window.scrollX || document.documentElement.scrollLeft;
const width = Math.min(Math.max(r.width, 320), 560);
panel.style.left = `${r.left + scrollX}px`;
panel.style.top = `${r.bottom + scrollY + 6}px`;
panel.style.width = `${width}px`;
}

const r = inputEl.getBoundingClientRect();

const viewportWidth = document.documentElement.clientWidth;
const width = Math.min(Math.max(r.width, 280), 560);
const left = Math.min(
Math.max(r.left, 8),
viewportWidth - width - 8
);

panel.style.left = `${left}px`;
panel.style.top = `${r.bottom + 6}px`;
panel.style.width = `${Math.min(width, viewportWidth - 16)}px`;
}
function renderResults(panel, items, rawQuery) {
panel.innerHTML = '';
if (!items.length) {
Expand Down Expand Up @@ -474,8 +478,13 @@
});

// Reposition on scroll/resize
window.addEventListener('scroll', updatePosition, { passive: true });
window.addEventListener('resize', updatePosition);
window.addEventListener('scroll', updatePosition, { passive: true });
window.addEventListener('resize', updatePosition);

const scrollContainer = inputEl.closest('.offcanvas-body');
if (scrollContainer) {
scrollContainer.addEventListener('scroll', updatePosition, { passive: true });
}

inputEl.setAttribute('autocomplete', 'off');
inputEl.addEventListener('input', onInput);
Expand Down
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