Files
WRNexusJS/packages/ui/components/Dropdown.wrn
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component Dropdown {
outputs {
toggle(payload: { open: boolean; sourceEvent: Event; reason?: object })
open(payload: { sourceEvent: Event })
close(payload: { reason: string; sourceEvent: Event })
select(payload: { item: string | number | boolean | null | object; itemIndex: number; value: string | number | boolean; sourceEvent: Event })
action(payload: { item: string | number | boolean | null | object; itemIndex: number; value: string | number | boolean; sourceEvent: Event })
}
props {
value: string | number = ""
items: unknown[] = []
open: boolean = false
defaultOpen: boolean = false
label: string = "Open menu"
ariaLabel: string = ""
icon: string = ""
showChevron: boolean = true
menuLabel: string = "Dropdown menu"
placement: string = "bottom-start"
mobilePanel: string = "sheet"
width: string = "md"
size: string = "default"
color: string = "primary"
variant: string = "raised"
closeOnSelect: boolean = true
closeOnOutside: boolean = true
disabled: boolean = false
emptyLabel: string = "No menu items"
class: string = ""
}
state visible = defaultOpen
functions {
shared function isOpen() {
return open || visible
}
client function showMenu(sourceEvent) {
if (disabled) {
return
}
visible = true
output.open({ sourceEvent: sourceEvent })
output.toggle({ open: true, sourceEvent: sourceEvent })
}
client function hideMenu(reason, sourceEvent) {
visible = false
output.close({ reason: reason, sourceEvent: sourceEvent })
output.toggle({ open: false, reason: reason, sourceEvent: sourceEvent })
if (reason === "escape") {
const root = sourceEvent.currentTarget.closest(".wrn-dropdown") || sourceEvent.currentTarget
const trigger = root.querySelector(".wrn-dropdown__trigger")
if (trigger) { trigger.focus() }
}
}
client function toggleMenu(sourceEvent) {
if (isOpen()) {
hideMenu("toggle", sourceEvent)
} else {
showMenu(sourceEvent)
}
}
client function chooseItem(item, itemIndex, sourceEvent) {
if (disabled || item.disabled || item.type === "divider" || item.type === "header") {
sourceEvent.preventDefault()
return
}
output.select({
item: item,
itemIndex: itemIndex,
value: item.value == null ? "" : item.value,
sourceEvent: sourceEvent
})
if (item.action) {
output.action({
item: item,
itemIndex: itemIndex,
value: item.value == null ? "" : item.value,
sourceEvent: sourceEvent
})
}
if (closeOnSelect) {
hideMenu("select", sourceEvent)
}
}
client function moveFocus(sourceEvent, direction) {
const root = sourceEvent.currentTarget.closest(".wrn-dropdown") || sourceEvent.currentTarget
window.setTimeout(function () {
if (!root.isConnected || !isOpen()) { return }
const options = [...root.querySelectorAll('[data-dropdown-item]:not([disabled]):not([aria-disabled="true"])')]
if (!options.length) {
return
}
const activeIndex = options.indexOf(document.activeElement)
const nextIndex = activeIndex < 0 ? (direction > 0 ? 0 : options.length - 1) : (activeIndex + direction + options.length) % options.length
options[nextIndex].focus()
}, 0)
}
client function handleKeydown(sourceEvent) {
if (disabled) { return }
if (sourceEvent.key === "Escape") {
if (!isOpen()) { return }
sourceEvent.preventDefault()
sourceEvent.stopPropagation()
hideMenu("escape", sourceEvent)
} else if (sourceEvent.key === "ArrowDown") {
sourceEvent.preventDefault()
if (!isOpen()) {
showMenu(sourceEvent)
}
moveFocus(sourceEvent, 1)
} else if (sourceEvent.key === "ArrowUp") {
sourceEvent.preventDefault()
if (!isOpen()) {
showMenu(sourceEvent)
}
moveFocus(sourceEvent, -1)
} else if (sourceEvent.key === "Home" && isOpen()) {
sourceEvent.preventDefault()
const root = sourceEvent.currentTarget.closest(".wrn-dropdown") || sourceEvent.currentTarget
const first = root.querySelector('[data-dropdown-item]:not([disabled]):not([aria-disabled="true"])')
if (first) {
first.focus()
}
} else if (sourceEvent.key === "End" && isOpen()) {
sourceEvent.preventDefault()
const root = sourceEvent.currentTarget.closest(".wrn-dropdown") || sourceEvent.currentTarget
const options = [...root.querySelectorAll('[data-dropdown-item]:not([disabled]):not([aria-disabled="true"])')]
if (options.length) {
options[options.length - 1].focus()
}
}
}
client function handleFocusout(sourceEvent) {
const root = sourceEvent.currentTarget
if (isOpen() && sourceEvent.relatedTarget && !root.contains(sourceEvent.relatedTarget)) {
hideMenu("focusout", sourceEvent)
}
}
}
view {
<div
{...attrs}
data-ui-component="Dropdown"
data-open='{open || visible ? "true" : "false"}'
data-placement='{placement}'
data-mobile-panel='{mobilePanel}'
data-width='{width}'
data-size='{size}'
data-color='{color}'
data-variant='{variant}'
class='wrn-dropdown {class}'
@keydown='handleKeydown(event)'
@focusout='handleFocusout(event)'
data-wrn-owner="Dropdown" data-wrn-part="root" data-wrn-component="Dropdown" data-wrn-axis-size='{size}' data-wrn-axis-color='{color}' data-wrn-axis-variant='{variant}'>
<button
type="button"
class="wrn-dropdown__trigger"
disabled='{disabled}'
aria-haspopup="menu"
aria-label='{ariaLabel || label}'
aria-expanded='{open || visible ? "true" : "false"}'
@click='toggleMenu(event)'
data-wrn-owner="Dropdown" data-wrn-part="trigger" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">
<slot name="trigger"></slot>
{#if icon}
<span class='wrn-dropdown__trigger-icon {icon}' aria-hidden="true" data-wrn-owner="Dropdown" data-wrn-part="triggerIcon" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}"></span>
{/if}
{#if label}
<span class="wrn-dropdown__trigger-label" data-wrn-owner="Dropdown" data-wrn-part="triggerLabel" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">{label}</span>
{/if}
{#if showChevron}
<span class="icon-[lucide--chevron-down] wrn-dropdown__chevron" aria-hidden="true" data-wrn-owner="Dropdown" data-wrn-part="chevron" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}"></span>
{/if}
</button>
{#if closeOnOutside}
<button
type="button"
class="wrn-dropdown__dismiss-layer"
hidden='{!(open || visible)}'
aria-label="Close menu"
@click='hideMenu("outside", event)'
data-wrn-owner="Dropdown" data-wrn-part="dismissLayer" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}"></button>
{/if}
<div
class="wrn-dropdown__panel"
data-wrn-anchored="true"
hidden='{!(open || visible)}'
role="menu"
aria-label='{menuLabel}'
data-wrn-owner="Dropdown" data-wrn-part="panel" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">
<slot name="header"></slot>
<div class="wrn-dropdown__items" data-wrn-owner="Dropdown" data-wrn-part="items" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">
{#each items as item, itemIndex}
{#if item.type === "divider"}
<div class="wrn-dropdown__divider" role="separator" data-wrn-owner="Dropdown" data-wrn-part="divider" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}"></div>
{:else if item.type === "header"}
<div class="wrn-dropdown__section-label" data-wrn-owner="Dropdown" data-wrn-part="sectionLabel" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">{item.label || item.title}</div>
{:else if item.href}
<a
href='{item.href}'
target='{item.target || ""}'
rel='{item.external || item.target === "_blank" ? "noopener noreferrer" : (item.rel || "")}'
role="menuitem"
data-dropdown-item
data-danger='{item.danger ? "true" : "false"}'
data-selected='{(value !== "" ? String(item.value) === String(value) : item.selected || item.checked) ? "true" : "false"}'
aria-disabled='{item.disabled ? "true" : "false"}'
tabindex='{item.disabled ? "-1" : "0"}'
class="wrn-dropdown__item"
@click='chooseItem(item, itemIndex, event)'
data-wrn-owner="Dropdown" data-wrn-part="item" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">
{#if item.icon}
<span class='wrn-dropdown__item-icon {item.icon}' aria-hidden="true" data-wrn-owner="Dropdown" data-wrn-part="itemIcon" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}"></span>
{/if}
<span class="wrn-dropdown__copy" data-wrn-owner="Dropdown" data-wrn-part="copy" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">
<strong>{item.label || item.title}</strong>
{#if item.description}
<small>{item.description}</small>
{/if}
</span>
{#if item.badge}
<span class="wrn-dropdown__badge" data-wrn-owner="Dropdown" data-wrn-part="badge" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">{item.badge}</span>
{:else if item.shortcut}
<kbd>{item.shortcut}</kbd>
{:else if value !== "" ? String(item.value) === String(value) : item.checked || item.selected}
<span class="icon-[lucide--check] wrn-dropdown__status" aria-hidden="true" data-wrn-owner="Dropdown" data-wrn-part="status" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}"></span>
{:else if item.external}
<span class="icon-[lucide--arrow-up-right] wrn-dropdown__status" aria-hidden="true" data-wrn-owner="Dropdown" data-wrn-part="status" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}"></span>
{/if}
</a>
{:else}
<button
type="button"
role="menuitem"
data-dropdown-item
data-danger='{item.danger ? "true" : "false"}'
data-selected='{(value !== "" ? String(item.value) === String(value) : item.selected || item.checked) ? "true" : "false"}'
disabled='{item.disabled}'
class="wrn-dropdown__item"
@click='chooseItem(item, itemIndex, event)'
data-wrn-owner="Dropdown" data-wrn-part="item" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">
{#if item.icon}
<span class='wrn-dropdown__item-icon {item.icon}' aria-hidden="true" data-wrn-owner="Dropdown" data-wrn-part="itemIcon" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}"></span>
{/if}
<span class="wrn-dropdown__copy" data-wrn-owner="Dropdown" data-wrn-part="copy" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">
<strong>{item.label || item.title}</strong>
{#if item.description}
<small>{item.description}</small>
{/if}
</span>
{#if item.badge}
<span class="wrn-dropdown__badge" data-wrn-owner="Dropdown" data-wrn-part="badge" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">{item.badge}</span>
{:else if item.shortcut}
<kbd>{item.shortcut}</kbd>
{:else if value !== "" ? String(item.value) === String(value) : item.checked || item.selected}
<span class="icon-[lucide--check] wrn-dropdown__status" aria-hidden="true" data-wrn-owner="Dropdown" data-wrn-part="status" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}"></span>
{/if}
</button>
{/if}
{:empty}
<div class="wrn-dropdown__empty" data-wrn-owner="Dropdown" data-wrn-part="empty" data-wrn-axis-size="{size}" data-wrn-axis-color="{color}" data-wrn-axis-variant="{variant}">{emptyLabel}</div>
{/each}
</div>
<slot></slot>
<slot name="footer"></slot>
</div>
</div>
}
style {
.wrn-dropdown {
--dropdown-accent: var(--wrn-color-primary);
--dropdown-soft: var(--wrn-color-primary-soft);
position: relative;
display: inline-flex;
min-width: 0;
}
.wrn-dropdown[data-color="secondary"] {
--dropdown-accent: var(--wrn-color-secondary);
--dropdown-soft: var(--wrn-color-secondary-soft);
}
.wrn-dropdown[data-color="info"] {
--dropdown-accent: var(--wrn-color-info);
--dropdown-soft: var(--wrn-color-info-soft);
}
.wrn-dropdown[data-color="success"] {
--dropdown-accent: var(--wrn-color-success);
--dropdown-soft: var(--wrn-color-success-soft);
}
.wrn-dropdown[data-color="warning"] {
--dropdown-accent: var(--wrn-color-warning);
--dropdown-soft: var(--wrn-color-warning-soft);
}
.wrn-dropdown[data-color="danger"] {
--dropdown-accent: var(--wrn-color-danger);
--dropdown-soft: var(--wrn-color-danger-soft);
}
.wrn-dropdown__trigger {
appearance: none;
display: inline-flex;
align-items: center;
justify-content: center;
gap: 0.5rem;
min-height: var(--wrn-control-height, 2.5rem);
padding: 0 0.875rem;
color: var(--wrn-color-text);
background: linear-gradient(180deg, var(--wrn-color-surface), var(--wrn-color-surface-soft, var(--wrn-color-surface)));
border: 1px solid var(--wrn-color-border);
border-bottom-color: var(--wrn-color-border-strong, var(--wrn-color-border));
border-radius: var(--wrn-radius-sm);
box-shadow: var(--wrn-shadow-1);
font: inherit;
font-size: 0.875rem;
font-weight: 600;
cursor: pointer;
transition: border-color 150ms ease, background-color 150ms ease, color 150ms ease, transform 150ms ease;
}
.wrn-dropdown__trigger:hover,
.wrn-dropdown__trigger:focus-visible,
.wrn-dropdown[data-open="true"] .wrn-dropdown__trigger {
color: var(--wrn-color-text);
background: var(--wrn-color-surface);
border-color: var(--wrn-color-border-strong, var(--wrn-color-border));
outline: none;
}
.wrn-dropdown__trigger:disabled {
opacity: 0.5;
cursor: not-allowed;
}
.wrn-dropdown__trigger-icon,
.wrn-dropdown__chevron {
width: 1rem;
height: 1rem;
}
.wrn-dropdown__chevron {
transition: transform 160ms ease;
}
.wrn-dropdown[data-open="true"] .wrn-dropdown__chevron {
transform: rotate(180deg);
}
.wrn-dropdown[data-size="sm"] .wrn-dropdown__trigger {
min-height: var(--wrn-control-height-sm, 2rem);
padding: 0.5rem 0.72rem;
font-size: 0.78rem;
}
.wrn-dropdown[data-size="lg"] .wrn-dropdown__trigger {
min-height: var(--wrn-control-height-lg, 2.75rem);
padding: 0.78rem 1.05rem;
font-size: 0.9rem;
}
.wrn-dropdown__dismiss-layer {
position: fixed;
inset: 0;
z-index: 1100;
appearance: none;
padding: 0;
background: transparent;
border: 0;
}
.wrn-dropdown__panel {
position: absolute;
z-index: 1101;
top: calc(100% + 0.375rem);
left: 0;
width: max-content;
min-width: 12rem;
max-width: min(22rem, calc(100vw - 1.5rem));
padding: 0.3rem;
color: var(--wrn-color-text);
background: var(--wrn-color-surface-raised);
border: 1px solid var(--wrn-color-border);
border-radius: var(--wrn-radius);
box-shadow: var(--wrn-highlight-edge, none), var(--wrn-shadow-3);
}
.wrn-dropdown[data-width="trigger"] .wrn-dropdown__panel {
width: 100%;
min-width: 100%;
}
.wrn-dropdown[data-width="sm"] .wrn-dropdown__panel {
width: 12rem;
}
.wrn-dropdown[data-width="md"] .wrn-dropdown__panel {
width: 17rem;
}
.wrn-dropdown[data-width="lg"] .wrn-dropdown__panel {
width: 22rem;
}
.wrn-dropdown[data-placement="bottom-end"] .wrn-dropdown__panel {
right: 0;
left: auto;
}
.wrn-dropdown[data-placement="top-start"] .wrn-dropdown__panel {
top: auto;
bottom: calc(100% + 0.55rem);
}
.wrn-dropdown[data-placement="top-end"] .wrn-dropdown__panel {
top: auto;
right: 0;
bottom: calc(100% + 0.55rem);
left: auto;
}
.wrn-dropdown[data-variant="soft"] .wrn-dropdown__panel {
background: color-mix(in srgb, var(--dropdown-accent) 4%, var(--wrn-color-surface-raised));
box-shadow: var(--wrn-shadow-3);
}
.wrn-dropdown[data-variant="outline"] .wrn-dropdown__panel {
background: var(--wrn-color-surface-raised);
box-shadow: none;
}
.wrn-dropdown__items {
display: grid;
gap: 0.15rem;
}
.wrn-dropdown__section-label {
padding: 0.5rem 0.625rem 0.25rem;
color: var(--wrn-color-text-subtle, var(--wrn-color-text-muted));
font-family: var(--wrn-font-mono, monospace);
font-size: 0.65rem;
font-weight: 600;
letter-spacing: 0.08em;
text-transform: uppercase;
}
.wrn-dropdown__divider {
height: 1px;
margin: 0.25rem -0.3rem;
background: var(--wrn-color-border);
}
.wrn-dropdown__item {
appearance: none;
display: grid;
grid-template-columns: auto minmax(0, 1fr) auto;
align-items: center;
gap: 0.625rem;
width: 100%;
min-width: 0;
padding: 0.5rem 0.625rem;
color: var(--wrn-color-text);
background: transparent;
border: 0;
border-radius: calc(var(--wrn-radius-sm) - 2px);
font: inherit;
font-size: 0.8125rem;
text-align: start;
text-decoration: none;
cursor: pointer;
transition: background-color 120ms ease, color 120ms ease;
}
.wrn-dropdown__item:hover,
.wrn-dropdown__item:focus-visible,
.wrn-dropdown__item[data-selected="true"] {
color: var(--wrn-color-text);
background: var(--wrn-color-surface-muted, var(--wrn-color-surface-soft));
outline: none;
}
.wrn-dropdown__item:active {
transform: none;
background: color-mix(in srgb, var(--dropdown-accent) 10%, var(--wrn-color-surface-muted, var(--wrn-color-surface-soft)));
}
.wrn-dropdown__item[data-danger="true"] {
color: var(--wrn-color-danger);
}
.wrn-dropdown__item[data-danger="true"]:hover,
.wrn-dropdown__item[data-danger="true"]:focus-visible {
background: var(--wrn-color-danger-soft);
}
.wrn-dropdown__item[disabled],
.wrn-dropdown__item[aria-disabled="true"] {
opacity: 0.48;
pointer-events: none;
}
.wrn-dropdown__item-icon,
.wrn-dropdown__status {
width: 1rem;
height: 1rem;
}
.wrn-dropdown__copy {
display: grid;
gap: 0.12rem;
min-width: 0;
}
.wrn-dropdown__copy strong {
overflow: hidden;
font-size: 0.8125rem;
font-weight: 550;
line-height: 1.35;
text-overflow: ellipsis;
white-space: nowrap;
}
.wrn-dropdown__copy small {
overflow: hidden;
color: var(--wrn-color-text-muted);
font-size: 0.72rem;
line-height: 1.35;
text-overflow: ellipsis;
white-space: nowrap;
}
.wrn-dropdown__badge {
padding: 0.125rem 0.4rem;
color: var(--wrn-color-primary-text, var(--dropdown-accent));
background: var(--dropdown-soft);
border-radius: 999px;
font-size: 0.65rem;
font-weight: 650;
font-variant-numeric: tabular-nums;
}
.wrn-dropdown kbd {
padding: 0.125rem 0.35rem;
color: var(--wrn-color-text-subtle, var(--wrn-color-text-muted));
background: var(--wrn-color-surface-soft);
border: 1px solid var(--wrn-color-border);
border-bottom-width: 2px;
border-radius: 0.3rem;
font-size: 0.65rem;
font-family: var(--wrn-font-mono, monospace);
}
.wrn-dropdown__empty {
padding: 1rem;
color: var(--wrn-color-text-muted);
font-size: 0.8rem;
text-align: center;
}
@media (max-width: 639px) {
.wrn-dropdown[data-placement][data-mobile-panel="sheet"] .wrn-dropdown__panel {
position: fixed;
right: 0.75rem;
bottom: 0.75rem;
left: 0.75rem;
top: auto;
width: auto;
min-width: 0;
max-width: none;
}
}
@media (prefers-reduced-motion: reduce) {
.wrn-dropdown__trigger,
.wrn-dropdown__chevron,
.wrn-dropdown__item {
transition: none;
}
}
}
}