114 lines
3.2 KiB
JavaScript
114 lines
3.2 KiB
JavaScript
/**
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* Horizontal Scroll Nav Component
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* Pill-style category buttons in a horizontal scroller
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*/
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class HorizontalScrollNav extends HTMLElement {
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constructor() {
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super();
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this.attachShadow({ mode: 'open' });
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this.categories = [
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{ id: 'all', label: 'All', active: true },
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{ id: 'fiction', label: 'Fiction', active: false },
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{ id: 'non-fiction', label: 'Non-Fiction', active: false },
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{ id: 'mystery', label: 'Mystery', active: false },
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{ id: 'romance', label: 'Romance', active: false },
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{ id: 'sci-fi', label: 'Sci-Fi', active: false },
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{ id: 'biography', label: 'Biography', active: false },
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{ id: 'history', label: 'History', active: false },
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];
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}
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connectedCallback() {
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this.render();
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this.addEventListeners();
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}
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addEventListeners() {
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const buttons = this.shadowRoot.querySelectorAll('.nav-pill');
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buttons.forEach(button => {
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button.addEventListener('click', (e) => {
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this.setActiveCategory(e.target.dataset.id);
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});
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});
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}
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setActiveCategory(id) {
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this.categories = this.categories.map(cat => ({
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...cat,
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active: cat.id === id
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}));
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this.render();
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this.addEventListeners();
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// Dispatch custom event for parent components
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this.dispatchEvent(new CustomEvent('category-change', {
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detail: { categoryId: id },
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bubbles: true,
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composed: true
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}));
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}
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render() {
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this.shadowRoot.innerHTML = `
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<style>
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:host {
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display: block;
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}
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.nav-container {
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display: flex;
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gap: var(--spacing-sm, 0.5rem);
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overflow-x: auto;
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scrollbar-width: none;
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-ms-overflow-style: none;
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padding: var(--spacing-xs, 0.25rem) 0;
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}
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.nav-container::-webkit-scrollbar {
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display: none;
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}
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.nav-pill {
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flex-shrink: 0;
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padding: var(--spacing-sm, 0.5rem) var(--spacing-md, 1rem);
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font-size: var(--font-size-sm, 0.875rem);
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font-weight: var(--font-weight-medium, 500);
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color: var(--color-text-light, #64748b);
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background-color: var(--color-background-tertiary, #f1f5f9);
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border: none;
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border-radius: var(--radius-full, 9999px);
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cursor: pointer;
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transition: all var(--transition-fast, 150ms ease);
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white-space: nowrap;
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}
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.nav-pill:hover {
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background-color: var(--color-border, #e2e8f0);
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}
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.nav-pill.active {
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color: var(--color-text-inverse, #ffffff);
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background-color: var(--color-primary, #2563eb);
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}
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.nav-pill.active:hover {
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background-color: var(--color-primary-dark, #1d4ed8);
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}
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</style>
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<nav class="nav-container" role="navigation" aria-label="Book categories">
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${this.categories.map(cat => `
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<button
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class="nav-pill ${cat.active ? 'active' : ''}"
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data-id="${cat.id}"
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${cat.active ? 'aria-current="true"' : ''}
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>
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${cat.label}
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</button>
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`).join('')}
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</nav>
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`;
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}
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}
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customElements.define('horizontal-scroll-nav', HorizontalScrollNav);
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