feat: EntityPicker component, replace dropdowns with command palette

Port EntityPalette pattern from wled-screen-controller as Svelte 5
component. Full-screen modal with search, keyboard navigation
(Arrow keys, Enter, Escape), grouped items, current-item accent,
auto-scroll, backdrop blur.

Replace inline image browser dropdowns on Projects and Quick Deploy
pages with EntityPicker. Add EntityPickerItem type and i18n keys.
This commit is contained in:
2026-03-28 14:31:13 +03:00
parent 777cafb622
commit c2040656bd
6 changed files with 529 additions and 112 deletions
+425
View File
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<!--
EntityPicker — command-palette style modal for selecting items from a list.
Supports search filtering, keyboard navigation, grouped items, and current-item highlighting.
-->
<script lang="ts">
import type { EntityPickerItem } from '$lib/types';
import { IconSearch, IconX } from '$lib/components/icons';
import { t } from '$lib/i18n';
interface Props {
open: boolean;
items: EntityPickerItem[];
current?: string;
placeholder?: string;
title?: string;
onselect: (value: string) => void;
onclose: () => void;
}
const {
open = $bindable(),
items,
current = '',
placeholder,
title = '',
onselect,
onclose
}: Props = $props();
let query = $state('');
let highlightIndex = $state(0);
let searchInput: HTMLInputElement | undefined = $state(undefined);
let listEl: HTMLDivElement | undefined = $state(undefined);
const filtered = $derived.by(() => {
const q = query.toLowerCase().trim();
if (!q) return items;
return items.filter(
(item) =>
item.label.toLowerCase().includes(q) ||
(item.description?.toLowerCase().includes(q) ?? false)
);
});
/** Group filtered items, preserving insertion order. */
const grouped = $derived.by(() => {
const groups: { name: string; items: EntityPickerItem[] }[] = [];
const seen = new Map<string, number>();
for (const item of filtered) {
const groupName = item.group ?? '';
const idx = seen.get(groupName);
if (idx !== undefined) {
groups[idx].items.push(item);
} else {
seen.set(groupName, groups.length);
groups.push({ name: groupName, items: [item] });
}
}
return groups;
});
/** Flat list of filtered items for keyboard indexing. */
const flatFiltered = $derived(filtered);
$effect(() => {
if (open) {
query = '';
highlightIndex = 0;
// Focus the search input after the modal renders.
requestAnimationFrame(() => {
searchInput?.focus();
});
}
});
// Reset highlight when filter changes.
$effect(() => {
// Access filtered.length to create a dependency.
void filtered.length;
highlightIndex = 0;
});
function scrollHighlightedIntoView() {
requestAnimationFrame(() => {
const el = listEl?.querySelector('[data-highlighted="true"]');
el?.scrollIntoView({ block: 'nearest' });
});
}
function handleKeydown(event: KeyboardEvent) {
switch (event.key) {
case 'ArrowDown': {
event.preventDefault();
highlightIndex = (highlightIndex + 1) % flatFiltered.length;
scrollHighlightedIntoView();
break;
}
case 'ArrowUp': {
event.preventDefault();
highlightIndex = (highlightIndex - 1 + flatFiltered.length) % flatFiltered.length;
scrollHighlightedIntoView();
break;
}
case 'Enter': {
event.preventDefault();
const item = flatFiltered[highlightIndex];
if (item) {
onselect(item.value);
}
break;
}
case 'Escape': {
event.preventDefault();
onclose();
break;
}
}
}
function handleBackdropClick() {
onclose();
}
function handleItemClick(value: string) {
onselect(value);
}
/** Track the flat index across groups for highlight matching. */
function flatIndexOf(groupIdx: number, itemIdx: number): number {
let index = 0;
for (let g = 0; g < groupIdx; g++) {
index += grouped[g].items.length;
}
return index + itemIdx;
}
</script>
{#if open}
<!-- Backdrop -->
<!-- svelte-ignore a11y_no_static_element_interactions -->
<div
class="entity-picker-backdrop"
onclick={handleBackdropClick}
onkeydown={handleKeydown}
></div>
<!-- Modal -->
<!-- svelte-ignore a11y_no_static_element_interactions -->
<div class="entity-picker-container" onkeydown={handleKeydown}>
<div class="entity-picker-modal" role="dialog" aria-modal="true" aria-label={title}>
{#if title}
<div class="entity-picker-header">
<h2 class="entity-picker-title">{title}</h2>
<button
type="button"
class="entity-picker-close"
onclick={onclose}
aria-label="Close"
>
<IconX size={18} />
</button>
</div>
{/if}
<!-- Search -->
<div class="entity-picker-search">
<IconSearch size={16} class="entity-picker-search-icon" />
<input
bind:this={searchInput}
bind:value={query}
type="text"
class="entity-picker-search-input"
placeholder={placeholder ?? $t('entityPicker.search')}
autocomplete="off"
spellcheck="false"
/>
{#if !title}
<button
type="button"
class="entity-picker-close-inline"
onclick={onclose}
aria-label="Close"
>
<IconX size={16} />
</button>
{/if}
</div>
<!-- List -->
<div class="entity-picker-list" bind:this={listEl}>
{#if flatFiltered.length === 0}
<div class="entity-picker-empty">
{$t('entityPicker.noResults')}
</div>
{:else}
{#each grouped as group, gIdx}
{#if group.name}
<div class="entity-picker-group-header">{group.name}</div>
{/if}
{#each group.items as item, iIdx}
{@const flatIdx = flatIndexOf(gIdx, iIdx)}
{@const isHighlighted = flatIdx === highlightIndex}
{@const isCurrent = item.value === current}
<button
type="button"
class="entity-picker-item"
class:entity-picker-item--highlighted={isHighlighted}
class:entity-picker-item--current={isCurrent}
data-highlighted={isHighlighted}
onclick={() => handleItemClick(item.value)}
onmouseenter={() => { highlightIndex = flatIdx; }}
>
{#if item.icon}
<span class="entity-picker-item-icon">{@html item.icon}</span>
{/if}
<span class="entity-picker-item-content">
<span class="entity-picker-item-label">{item.label}</span>
{#if item.description}
<span class="entity-picker-item-description">{item.description}</span>
{/if}
</span>
</button>
{/each}
{/each}
{/if}
</div>
</div>
</div>
{/if}
<style>
.entity-picker-backdrop {
position: fixed;
inset: 0;
z-index: 60;
background: var(--surface-overlay);
backdrop-filter: blur(4px);
animation: fade-in var(--transition-normal) forwards;
}
.entity-picker-container {
position: fixed;
inset: 0;
z-index: 61;
display: flex;
align-items: flex-start;
justify-content: center;
padding-top: 12vh;
pointer-events: none;
}
.entity-picker-modal {
pointer-events: auto;
width: 90vw;
max-width: 500px;
background: var(--surface-card);
border: 1px solid var(--border-primary);
border-radius: var(--radius-xl);
box-shadow: var(--shadow-xl);
overflow: hidden;
animation: scale-in var(--transition-normal) forwards;
display: flex;
flex-direction: column;
}
.entity-picker-header {
display: flex;
align-items: center;
justify-content: space-between;
padding: var(--space-3) var(--space-4);
border-bottom: 1px solid var(--border-secondary);
}
.entity-picker-title {
font-size: var(--text-sm);
font-weight: var(--weight-semibold);
color: var(--text-primary);
margin: 0;
}
.entity-picker-close {
display: flex;
align-items: center;
justify-content: center;
width: 28px;
height: 28px;
border: none;
border-radius: var(--radius-md);
background: transparent;
color: var(--text-tertiary);
cursor: pointer;
transition: background var(--transition-fast), color var(--transition-fast);
}
.entity-picker-close:hover {
background: var(--surface-card-hover);
color: var(--text-primary);
}
.entity-picker-search {
display: flex;
align-items: center;
gap: var(--space-2);
padding: var(--space-3) var(--space-4);
border-bottom: 1px solid var(--border-secondary);
}
:global(.entity-picker-search-icon) {
flex-shrink: 0;
color: var(--text-tertiary);
}
.entity-picker-search-input {
flex: 1;
border: none;
outline: none;
background: transparent;
font-size: var(--text-sm);
color: var(--text-primary);
font-family: var(--font-family-sans);
}
.entity-picker-search-input::placeholder {
color: var(--text-tertiary);
}
.entity-picker-close-inline {
flex-shrink: 0;
display: flex;
align-items: center;
justify-content: center;
width: 24px;
height: 24px;
border: none;
border-radius: var(--radius-sm);
background: transparent;
color: var(--text-tertiary);
cursor: pointer;
transition: background var(--transition-fast), color var(--transition-fast);
}
.entity-picker-close-inline:hover {
background: var(--surface-card-hover);
color: var(--text-primary);
}
.entity-picker-list {
overflow-y: auto;
max-height: 60vh;
padding: var(--space-1) 0;
}
.entity-picker-empty {
padding: var(--space-8) var(--space-4);
text-align: center;
font-size: var(--text-sm);
color: var(--text-tertiary);
}
.entity-picker-group-header {
padding: var(--space-2) var(--space-4) var(--space-1);
font-size: var(--text-xs);
font-weight: var(--weight-semibold);
color: var(--text-tertiary);
text-transform: uppercase;
letter-spacing: 0.05em;
}
.entity-picker-item {
display: flex;
align-items: center;
gap: var(--space-3);
width: 100%;
padding: var(--space-2) var(--space-4);
border: none;
background: transparent;
cursor: pointer;
text-align: left;
font-family: var(--font-family-sans);
transition: background var(--transition-fast);
border-left: 3px solid transparent;
}
.entity-picker-item--highlighted {
background: var(--surface-card-hover);
}
.entity-picker-item--current {
border-left-color: var(--color-brand-500);
}
.entity-picker-item-icon {
flex-shrink: 0;
width: 20px;
height: 20px;
display: flex;
align-items: center;
justify-content: center;
color: var(--text-tertiary);
}
.entity-picker-item-content {
display: flex;
flex-direction: column;
gap: 1px;
min-width: 0;
}
.entity-picker-item-label {
font-size: var(--text-sm);
font-weight: var(--weight-medium);
color: var(--text-primary);
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.entity-picker-item-description {
font-size: var(--text-xs);
color: var(--text-tertiary);
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
</style>