Hotkey
Invisible keyboard shortcut listener that supports modifier combos (Ctrl+K) and chord sequences (g i). Fires an event when the key pattern is matched.
<arc-hotkey> Overview
Hotkey is a zero-UI component that listens for keyboard shortcuts and fires an arc-hotkey-trigger event when a matching key pattern is detected. It renders nothing visible — display: none is enforced — so it acts purely as a declarative shortcut binding you drop into your template.
The keys prop accepts modifier combos like "ctrl+k", "meta+shift+p", and "alt+n", as well as Vim-style chord sequences where space-separated keys must be pressed in order (e.g. "g i" means press G, release, then press I within 1 second). Modifier names are normalized: cmd/command → meta, option → alt, control → ctrl.
By default, Hotkey skips events when focus is inside an input, textarea, select, or contentEditable element, preventing shortcuts from interfering with typing. Setting global attaches the listener to window and removes this filter, useful for app-wide shortcuts that must work regardless of focus.
Guidelines
When to use
- Use for app-level shortcuts like Ctrl+K for search or Ctrl+S for save
- Set `global` for shortcuts that must work inside text inputs (e.g. Ctrl+S)
- Provide visual hints elsewhere in the UI (tooltips, menu items) showing available shortcuts
- Use `disabled` to suspend shortcuts when a modal or dialog is open
When not to use
- Do not override browser-reserved shortcuts (Ctrl+T, Ctrl+W, Ctrl+N) — they won't work
- Do not create chord sequences longer than 2-3 keys — users can't remember them
- Do not rely on hotkeys as the only way to access a feature — always provide a clickable alternative
- Do not forget the 1-second chord timeout — slow typists may miss the window
Features
- Modifier combos: ctrl+k, meta+shift+p, alt+n, etc.
- Chord sequences: "g i" (press G, then I within 1 second)
- Normalized modifier names: cmd/command → meta, option → alt
- Automatic input/textarea/select filtering — won't fire while typing
- Global mode attaches to window and bypasses focus filtering
- Disabled prop to temporarily suspend the shortcut
- Zero UI — `display: none` enforced, no layout impact
- Fires `arc-hotkey-trigger` with `event.detail.keys` containing the matched pattern
Preview
Press
Usage
This component requires JavaScript. No pure HTML/CSS version is available — use the Web Component directly or a framework wrapper.
<!-- Search shortcut -->
<arc-hotkey keys="ctrl+k" id="search-hotkey"></arc-hotkey>
<!-- Vim-style chord: press g, then i -->
<arc-hotkey keys="g i" id="go-inbox"></arc-hotkey>
<!-- Global shortcut (works in inputs) -->
<arc-hotkey keys="ctrl+s" global id="save-hotkey"></arc-hotkey>
<script type="module">
document.getElementById('search-hotkey')
.addEventListener('arc-hotkey-trigger', () => openSearch());
document.getElementById('save-hotkey')
.addEventListener('arc-hotkey-trigger', () => saveDocument());
</script>import { Hotkey } from '@arclux/arc-ui-react';
function App() {
const handleSearch = () => openSearch();
const handleSave = () => saveDocument();
return (
<>
<Hotkey keys="ctrl+k" onArcHotkeyTrigger={handleSearch} />
<Hotkey keys="ctrl+s" global onArcHotkeyTrigger={handleSave} />
</>
);
}<script setup>
import { Hotkey } from '@arclux/arc-ui-vue';
function openSearch() { /* ... */ }
function saveDoc() { /* ... */ }
</script>
<template>
<Hotkey keys="ctrl+k" @arc-hotkey-trigger="openSearch" />
<Hotkey keys="ctrl+s" global @arc-hotkey-trigger="saveDoc" />
</template><script>
import { Hotkey } from '@arclux/arc-ui-svelte';
function openSearch() { /* ... */ }
</script>
<Hotkey keys="ctrl+k" on:arc-hotkey-trigger={openSearch} />import { Component } from '@angular/core';
import { Hotkey } from '@arclux/arc-ui-angular';
@Component({
imports: [Hotkey],
template: `
<arc-hotkey keys="ctrl+k" (arc-hotkey-trigger)="openSearch()" />
<arc-hotkey keys="ctrl+s" global (arc-hotkey-trigger)="save()" />
`,
})
export class AppComponent {
openSearch() { /* ... */ }
save() { /* ... */ }
}import { Hotkey } from '@arclux/arc-ui-solid';
export default function Example() {
return (
<>
<Hotkey keys="ctrl+k" onArcHotkeyTrigger={() => openSearch()} />
<Hotkey keys="ctrl+s" global onArcHotkeyTrigger={() => save()} />
</>
);
}import { Hotkey } from '@arclux/arc-ui-preact';
export default function Example() {
return (
<>
<Hotkey keys="ctrl+k" onArcHotkeyTrigger={() => openSearch()} />
<Hotkey keys="ctrl+s" global onArcHotkeyTrigger={() => save()} />
</>
);
}API
-
keysstring'' - Key pattern to match. Modifier combos use "+" (e.g., "ctrl+k"). Chords use spaces (e.g., "g i").
-
disabledbooleanfalse - Temporarily suspends the shortcut listener.
-
globalbooleanfalse - When true, attaches to
windowinstead ofdocumentand skips input/textarea filtering.
Events
-
arc-hotkey-triggerdetail: { keys: string } - Fired when the full key pattern is matched.
event.detail.keyscontains the matched pattern string.