62 lines
2 KiB
JavaScript
62 lines
2 KiB
JavaScript
import {
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computePosition,
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flip,
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shift,
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} from 'https://cdn.jsdelivr.net/npm/@floating-ui/dom@1.5.4/+esm';
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function update_position(button, dropdown_div) {
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const placement = button.dataset.dropdownDirection;
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computePosition(button, dropdown_div, {
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placement: placement,
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middleware: [
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flip(),
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shift()
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],
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}).then(({x, y}) => {
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Object.assign(dropdown_div.style, {
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left: `${x}px`,
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top: `${y}px`,
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});
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})
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}
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function setup_dropdown(button) {
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const dropdown_div = document.querySelector("#" + button.dataset.dropdownTarget);
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update_position(button, dropdown_div);
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dropdown_div.style.display = "none";
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dropdown_div.style.maxHeight = "0px";
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return function () {
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if (dropdown_div.style.display == "none") {
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update_position(button, dropdown_div);
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button.style.borderBottomLeftRadius = "0px";
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button.style.borderBottomRightRadius = "0px";
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dropdown_div.style.overflow = "hidden";
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dropdown_div.style.display = "block";
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dropdown_div.style.maxHeight = "0px";
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setTimeout(function () {
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dropdown_div.style.maxHeight = "150px";
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dropdown_div.style.removeProperty("overflow");
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}, 200);
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} else {
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dropdown_div.style.overflow = "hidden";
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dropdown_div.style.maxHeight = "0px";
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setTimeout(function () {
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button.style.removeProperty("border-bottom-left-radius");
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button.style.removeProperty("border-bottom-right-radius");
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dropdown_div.style.display = "none";
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dropdown_div.style.removeProperty("overflow");
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}, 200);
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}
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};
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}
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function register_dropdowns() {
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document.querySelectorAll(".dropdown-button").forEach(function (el) {
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el.addEventListener("click", setup_dropdown(el));
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});
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}
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export {register_dropdowns}
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