@scania/tegel/dist/esm/tds-header-dropdown.entry.js

Tegel Design System

import { r as registerInstance, h, H as Host, a as getElement } from './index-9xxNGlso.js';
import { g as generateUniqueId } from './generateUniqueId-Cn4f8w1e.js';

const headerDropdownCss = () => `:host,:root{--tds-scrollbar-width-standard:thin;--tds-scrollbar-width:10px;--tds-scrollbar-height:10px;--tds-scrollbar-thumb-border-width:3px;--tds-scrollbar-thumb-border-hover-width:2px}body{scrollbar-width:thin}:host{height:var(--tds-header-height);position:relative}:host .menu{flex-direction:column;overflow-y:auto;max-height:calc(100vh - var(--tds-header-height));box-shadow:var(--tds-nav-dropdown-menu-box);background-color:var(--tds-header-app-launcher-menu-background);border-top-right-radius:0;border-top-left-radius:0}:host .menu:hover::-webkit-scrollbar-thumb{border:var(--tds-scrollbar-thumb-border-hover-width) solid transparent;background-clip:padding-box}:host .menu::-webkit-scrollbar{width:var(--tds-scrollbar-width)}:host .menu::-webkit-scrollbar-track{background:var(--tds-scrollbar-track-color)}:host .menu::-webkit-scrollbar-thumb{border-radius:40px;background:var(--tds-scrollbar-thumb-color);border:var(--tds-scrollbar-thumb-border-width) solid transparent;background-clip:padding-box}:host .menu::-webkit-scrollbar-button{height:0;width:0}@supports not selector(::-webkit-scrollbar){:host .menu{scrollbar-color:var(--tds-scrollbar-thumb-color) var(--tds-scrollbar-track-color);scrollbar-width:var(--tds-scrollbar-width-standard)}}:host .state-open .dropdown-icon{transform:rotate(180deg)}:host .state-open .button{position:relative;z-index:901}:host .state-open tds-header-item button:hover,:host .state-open tds-header-item a:hover{background-color:var(--tds-nav-item-background-hover);box-shadow:none}`;

const TdsHeaderDropdown = class {
    constructor(hostRef) {
        registerInstance(this, hostRef);
        /** If the dropdown icon (downwards chevron) should be hidden. */
        this.noDropdownIcon = false;
        /** If the button that opens the dropdown should appear selected. */
        this.selected = false;
        this.open = false;
        this.uuid = generateUniqueId();
        this.handleSlottedItemClick = (event) => {
            const eventSource = event.target.tagName.toLowerCase();
            if (['a', 'button'].includes(eventSource)) {
                this.open = false;
            }
        };
    }
    onAnyClick(event) {
        // Source: https://lamplightdev.com/blog/2021/04/10/how-to-detect-clicks-outside-of-a-web-component/
        const isClickOutside = !event.composedPath().includes(this.host);
        if (isClickOutside) {
            this.open = false;
        }
    }
    handleKeyDown(event) {
        var _a;
        if (event.key === 'Escape' && this.open) {
            this.open = false;
            (_a = this.buttonEl) === null || _a === void 0 ? void 0 : _a.focus();
        }
    }
    toggleDropdown() {
        this.open = !this.open;
        if (this.open) {
            requestAnimationFrame(() => {
                var _a;
                const selectors = "a, [tabindex='0']";
                const firstFocusableElement = ((_a = this.host.shadowRoot) === null || _a === void 0 ? void 0 : _a.querySelector(selectors)) || this.host.querySelector(selectors);
                if (firstFocusableElement instanceof HTMLElement) {
                    firstFocusableElement.focus();
                }
            });
        }
    }
    render() {
        return (h(Host, { key: '81c477e45d3f6a4614c3928797f900fb9b64ffcc' }, h("div", { key: '2b4a3509254a827fa6d300793b699e57ac36cd9a', class: {
                'state-open': this.open,
            } }, h("tds-header-item", { key: '4847e06a7b5fdf61642234f7179b01103e34fb38', class: "button", active: this.open, selected: this.selected }, h("button", { key: '8cc7fed2a05c68f0026ef7d4c17400d85d6a40af', ref: (el) => {
                this.buttonEl = el;
            }, "aria-expanded": `${this.open}`, "aria-controls": `launcher-${this.uuid}`, "aria-current": this.selected ? 'location' : 'false', onClick: () => {
                this.toggleDropdown();
            }, "aria-label": this.tdsAriaLabel }, h("slot", { key: '8254bfb1f48d193bc0c58363df96fad41b61aad6', name: "icon" }), this.label, h("slot", { key: '5722ecd4748ad029b5b803bb4ff731cca119fc7b', name: "label" }), !this.noDropdownIcon && (h("tds-icon", { key: 'c0c9c51b4705226891b21383ce27c0680113af7c', class: "dropdown-icon", name: "chevron_down", size: "16px", svgTitle: "Dropdown icon" })))), this.buttonEl && (h("tds-popover-canvas", { key: '52e127dbe4eef7082e62f3421d338fa0b44ab919', id: `tds-dropdown-${this.uuid}`, class: "menu", referenceEl: this.buttonEl, placement: "bottom-start", show: this.open, offsetDistance: 0, modifiers: [
                {
                    name: 'flip',
                    options: {
                        fallbackPlacements: [],
                    },
                },
            ] }, this.open ? (h("span", { onClick: (e) => this.handleSlottedItemClick(e), onKeyDown: (e) => e.key === 'Enter' && this.handleSlottedItemClick(e) }, h("slot", null))) : null)))));
    }
    get host() { return getElement(this); }
};
TdsHeaderDropdown.style = headerDropdownCss();

export { TdsHeaderDropdown as tds_header_dropdown };