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fix: tooltip flips above cursor when it would clip viewport bottom

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Falkan
2026-03-18 23:58:40 -04:00
parent 52fc0b826f
commit c13db8b826
1 changed files with 22 additions and 6 deletions
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28
src/lib/actions/tooltip.ts
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@@ -29,13 +29,22 @@ export function tooltip(node: HTMLElement, text: string) {
if (!currentText) return;
const el = getTooltipEl();
el.textContent = currentText;
el.classList.add('hu-tooltip--visible');
// Position near cursor, clamped to viewport
const x = Math.min(e.clientX + 12, window.innerWidth - el.offsetWidth - 8);
const y = e.clientY + 20;
// Position near cursor, clamped to viewport with 8px margin
const margin = 8;
const w = el.offsetWidth;
const h = el.offsetHeight;
const x = Math.min(e.clientX + 12, window.innerWidth - w - margin);
// Try below cursor first; if it clips the bottom, flip above
let y = e.clientY + 20;
if (y + h + margin > window.innerHeight) {
y = e.clientY - h - 12;
}
// Final clamp: don't go above top of viewport
y = Math.max(margin, y);
el.style.left = `${x}px`;
el.style.top = `${y}px`;
el.classList.add('hu-tooltip--visible');
}
function enter(e: MouseEvent) {
@@ -47,8 +56,15 @@ export function tooltip(node: HTMLElement, text: string) {
// Keep tooltip near cursor while hovering
if (!tooltipEl?.classList.contains('hu-tooltip--visible')) return;
const el = getTooltipEl();
const x = Math.min(e.clientX + 12, window.innerWidth - el.offsetWidth - 8);
const y = e.clientY + 20;
const margin = 8;
const w = el.offsetWidth;
const h = el.offsetHeight;
const x = Math.min(e.clientX + 12, window.innerWidth - w - margin);
let y = e.clientY + 20;
if (y + h + margin > window.innerHeight) {
y = e.clientY - h - 12;
}
y = Math.max(margin, y);
el.style.left = `${x}px`;
el.style.top = `${y}px`;
}