60 lines
2.0 KiB
JavaScript
60 lines
2.0 KiB
JavaScript
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// Generated, do not edit. sha256:0538b89d6c5865b07db285c6e78de905962d2d2f2b35ac9aeee58cf04054fbe2
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let current = null;
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export function isPopoverOpen() { return current !== null; }
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export function closePopover() {
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if (!current) return;
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const c = current;
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current = null;
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c.cleanup();
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c.el.remove();
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if (c.onClose) c.onClose();
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}
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export function openPopover(anchorEl, { className, onClose } = {}) {
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closePopover();
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const el = document.createElement('div');
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el.className = className || 'popover';
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const overlays = document.querySelectorAll('.dialog-overlay');
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(overlays.length ? overlays[overlays.length - 1] : document.body).appendChild(el);
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function position() {
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const r = anchorEl.getBoundingClientRect();
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const pad = 8;
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let left = r.left;
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let top = r.bottom + 6;
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const pw = el.offsetWidth, ph = el.offsetHeight;
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if (left + pw > window.innerWidth - pad) left = window.innerWidth - pad - pw;
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if (left < pad) left = pad;
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if (top + ph > window.innerHeight - pad) top = Math.max(pad, r.top - ph - 6);
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el.style.left = `${left}px`;
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el.style.top = `${top}px`;
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}
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const reposition = () => { if (current && current.el === el) position(); };
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const onDocClick = e => {
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if (el.contains(e.target) || (anchorEl && anchorEl.contains(e.target))) return;
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closePopover();
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};
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const onKey = e => { if (e.key === 'Escape') closePopover(); };
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let bindTimer = null;
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const cleanup = () => {
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clearTimeout(bindTimer);
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document.removeEventListener('click', onDocClick, true);
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document.removeEventListener('keydown', onKey);
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window.removeEventListener('resize', reposition);
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window.removeEventListener('scroll', reposition, true);
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};
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current = { el, cleanup, onClose };
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bindTimer = setTimeout(() => document.addEventListener('click', onDocClick, true), 0);
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document.addEventListener('keydown', onKey);
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window.addEventListener('resize', reposition);
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window.addEventListener('scroll', reposition, true);
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return { el, position, close: closePopover };
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}
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