Key State Tracking Guide

<script lang="ts">
  import { getHeldKeys } from '@tanstack/svelte-hotkeys'

  const heldKeys = getHeldKeys()
</script>

<div>{heldKeys.keys.length > 0 ? heldKeys.keys.join(' + ') : 'No keys held'}</div>

<script lang="ts">
  import { getHeldKeyCodesMap } from '@tanstack/svelte-hotkeys'

  const heldCodes = getHeldKeyCodesMap()
</script>

<pre>{JSON.stringify(heldCodes.codes, null, 2)}</pre>

<script lang="ts">
  import { getIsKeyHeld } from '@tanstack/svelte-hotkeys'

  const isShiftHeld = getIsKeyHeld('Shift')
</script>

<span class:active={isShiftHeld.held}>Shift</span>

<script lang="ts">
  import { getIsKeyHeld } from '@tanstack/svelte-hotkeys'

  const isShiftHeld = getIsKeyHeld('Shift')
</script>

{#if isShiftHeld.held}
  <button>Permanently Delete</button>
{:else}
  <button>Move to Trash</button>
{/if}

<script lang="ts">
  import {
    formatKeyForDebuggingDisplay,
    getHeldKeyCodesMap,
    getHeldKeys,
  } from '@tanstack/svelte-hotkeys'

  const heldKeys = getHeldKeys()
  const heldCodes = getHeldKeyCodesMap()
</script>

<div>
  {#each heldKeys.keys as key}
    <kbd>
      {formatKeyForDebuggingDisplay(key)}:
      {heldCodes.codes[key]
        ? formatKeyForDebuggingDisplay(heldCodes.codes[key], { source: 'code' })
        : 'unknown'}
    </kbd>
  {/each}
</div>

import { getKeyStateTracker } from '@tanstack/svelte-hotkeys'

const tracker = getKeyStateTracker()
tracker.getHeldKeys()
tracker.isKeyHeld('Shift')