From cdeb95a6b7384ae4ed1768e1b311cc3eab4158af Mon Sep 17 00:00:00 2001
From: "Michael J. Roberts"
 <84131395+michael-observerly@users.noreply.github.com>
Date: Fri, 31 Dec 2021 06:30:30 +0000
Subject: [PATCH] feat(useVibrate): new function (#1082)

Co-authored-by: Anthony Fu <anthonyfu117@hotmail.com>
---
 packages/core/useVibrate/index.md | 36 +++++++++++++
 packages/core/useVibrate/index.ts | 85 +++++++++++++++++++++++++++++++
 packages/functions.md             |  1 +
 3 files changed, 122 insertions(+)
 create mode 100644 packages/core/useVibrate/index.md
 create mode 100644 packages/core/useVibrate/index.ts

diff --git a/packages/core/useVibrate/index.md b/packages/core/useVibrate/index.md
new file mode 100644
index 00000000000..03f23cd722e
--- /dev/null
+++ b/packages/core/useVibrate/index.md
@@ -0,0 +1,36 @@
+---
+category: Browser
+---
+
+# useVibrate
+
+Reactive vibration web API
+
+Most modern mobile devices include vibration hardware, which lets software 
+code provides physical feedback to the user by causing the device to shake. 
+
+The Vibration API offers Web apps the ability to access this hardware, 
+if it exists, and does nothing if the device doesn't support it.
+
+## Usage
+
+Vibration is described as a pattern of on-off pulses, which may be of varying 
+lengths. 
+
+The pattern may consist of either a single integer describing the 
+number of milliseconds to vibrate, or an array of integers describing 
+a pattern of vibrations and pauses.
+
+```ts
+import { useVibrate } from '@vueuse/core'
+
+// This vibrates the device for 300 ms
+// then pauses for 100 ms before vibrating the device again for another 300 ms:
+const { vibrate, stop, isSupported } = useVibrate({ pattern: [300, 100, 300] })
+
+// Start the vibration, it will automatically stop when the pattern is complete:
+vibrate()
+
+// But if you want to stop it, you can:
+stop()
+```
diff --git a/packages/core/useVibrate/index.ts b/packages/core/useVibrate/index.ts
new file mode 100644
index 00000000000..6b410f0e6b4
--- /dev/null
+++ b/packages/core/useVibrate/index.ts
@@ -0,0 +1,85 @@
+import { ref } from 'vue-demi'
+import type { MaybeRef, Pausable } from '@vueuse/shared'
+import { useIntervalFn } from '@vueuse/shared'
+import type { ConfigurableNavigator } from '../_configurable'
+import { defaultNavigator } from '../_configurable'
+
+export interface UseVibrateOptions extends ConfigurableNavigator {
+  /**
+   *
+   * Vibration Pattern
+   *
+   * An array of values describes alternating periods in which the
+   * device is vibrating and not vibrating. Each value in the array
+   * is converted to an integer, then interpreted alternately as
+   * the number of milliseconds the device should vibrate and the
+   * number of milliseconds it should not be vibrating
+   *
+   * @default []
+   *
+   */
+  pattern?: MaybeRef<number[] | number>
+  /**
+   * Interval to run a persistent vibration, in ms
+   *
+   * Pass `0` to disable
+   *
+   * @default 0
+   *
+   */
+  interval?: number
+}
+
+/**
+ * Reactive vibrate
+ *
+ * @see https://vueuse.org/useVibrate
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/Vibration_API
+ * @param options
+ */
+export function useVibrate(options?: UseVibrateOptions) {
+  const {
+    pattern = [],
+    interval = 0,
+    navigator = defaultNavigator,
+  } = options || {}
+
+  const isSupported = typeof navigator !== 'undefined' && 'vibrate' in navigator
+
+  const patternRef = ref(pattern)
+  let intervalControls: Pausable | undefined
+
+  const vibrate = (pattern = patternRef.value) => {
+    if (isSupported)
+      navigator.vibrate(pattern)
+  }
+
+  // Attempt to stop the vibration:
+  const stop = () => {
+    // Stope the vibration if we need to:
+    if (isSupported)
+      navigator.vibrate(0)
+    intervalControls?.pause()
+  }
+
+  if (interval > 0) {
+    intervalControls = useIntervalFn(
+      vibrate,
+      interval,
+      {
+        immediate: false,
+        immediateCallback: false,
+      },
+    )
+  }
+
+  return {
+    isSupported,
+    pattern,
+    intervalControls,
+    vibrate,
+    stop,
+  }
+}
+
+export type UseVibrateReturn = ReturnType<typeof useVibrate>
diff --git a/packages/functions.md b/packages/functions.md
index 611c7f3246e..2af4987dda3 100644
--- a/packages/functions.md
+++ b/packages/functions.md
@@ -43,6 +43,7 @@
   - [`useTitle`](https://vueuse.org/core/useTitle/) — reactive document title
   - [`useUrlSearchParams`](https://vueuse.org/core/useUrlSearchParams/) — reactive [URLSearchParams](https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams)
   - [`useWakeLock`](https://vueuse.org/core/useWakeLock/) — reactive [Screen Wake Lock API](https://developer.mozilla.org/en-US/docs/Web/API/Screen_Wake_Lock_API) provides a way to prevent devices from dimming or locking the screen when an application needs to keep running
+  - [`useVibrate`](https://vueuse.org/core/useVibrate/) — reactive vibration of the user's device [Vibration API](https://developer.mozilla.org/en-US/docs/Web/API/Vibration_API)
 
 ### Component
   - [`computedInject`](https://vueuse.org/core/computedInject/) — combine computed and inject