chore: add more composables (#138)

src/runtime/composables/useShortcuts.ts

@@ -0,0 +1,32 @@
+import { createSharedComposable, useActiveElement } from '@vueuse/core'
+import { ref, computed, onMounted } from 'vue'
+
+export const _useShortcuts = () => {
+  const macOS = computed(() => process.client && navigator && navigator.userAgent && navigator.userAgent.match(/Macintosh;/))
+
+  const metaSymbol = ref(' ')
+
+  const activeElement = useActiveElement()
+  const usingInput = computed(() => {
+    const usingInput = !!(activeElement.value?.tagName === 'INPUT' || activeElement.value?.tagName === 'TEXTAREA' || activeElement.value?.contentEditable === 'true')
+
+    if (usingInput) {
+      return ((activeElement.value as any)?.name as string) || true
+    }
+
+    return false
+  })
+
+  onMounted(() => {
+    metaSymbol.value = macOS.value ? '⌘' : 'Ctrl'
+  })
+
+  return {
+    macOS,
+    metaSymbol,
+    activeElement,
+    usingInput
+  }
+}
+
+export const useShortcuts = createSharedComposable(_useShortcuts)