8 files changed, 33 insertions, 0 deletions
diff --git a/packages/frontend/package.json b/packages/frontend/package.json
index 903a0c09be..fe2f47ad1f 100644
--- a/packages/frontend/package.json
+++ b/packages/frontend/package.json
@@ -52,6 +52,7 @@
 		"icons-subsetter": "workspace:*",
 		"idb-keyval": "6.2.2",
 		"insert-text-at-cursor": "0.3.0",
+		"ios-haptics": "0.1.0",
 		"is-file-animated": "1.0.2",
 		"json5": "2.2.3",
 		"magic-string": "0.30.17",
diff --git a/packages/frontend/src/components/MkEmojiPicker.vue b/packages/frontend/src/components/MkEmojiPicker.vue
index 0248d75f75..df05bcc94c 100644
--- a/packages/frontend/src/components/MkEmojiPicker.vue
+++ b/packages/frontend/src/components/MkEmojiPicker.vue
@@ -141,6 +141,7 @@ import { $i } from '@/i.js';
 import { checkReactionPermissions } from '@/utility/check-reaction-permissions.js';
 import { prefer } from '@/preferences.js';
 import { useRouter } from '@/router.js';
+import { haptic } from '@/utility/haptic.js';
 
 const router = useRouter();
 
@@ -431,6 +432,8 @@ function chosen(emoji: string | Misskey.entities.EmojiSimple | UnicodeEmojiDef,
 	const key = getKey(emoji);
 	emit('chosen', key);
 
+	haptic();
+
 	// 最近使った絵文字更新
 	if (!pinned.value?.includes(key)) {
 		let recents = store.s.recentlyUsedEmojis;
diff --git a/packages/frontend/src/components/MkFollowButton.vue b/packages/frontend/src/components/MkFollowButton.vue
index b65f610986..c7361a19c6 100644
--- a/packages/frontend/src/components/MkFollowButton.vue
+++ b/packages/frontend/src/components/MkFollowButton.vue
@@ -46,6 +46,7 @@ import { claimAchievement } from '@/utility/achievements.js';
 import { pleaseLogin } from '@/utility/please-login.js';
 import { $i } from '@/i.js';
 import { prefer } from '@/preferences.js';
+import { haptic } from '@/utility/haptic.js';
 
 const props = withDefaults(defineProps<{
 	user: Misskey.entities.UserDetailed,
@@ -84,6 +85,8 @@ async function onClick() {
 
 	wait.value = true;
 
+	haptic();
+
 	try {
 		if (isFollowing.value) {
 			const { canceled } = await os.confirm({
diff --git a/packages/frontend/src/components/MkPullToRefresh.vue b/packages/frontend/src/components/MkPullToRefresh.vue
index c792ff3488..89aca5d29b 100644
--- a/packages/frontend/src/components/MkPullToRefresh.vue
+++ b/packages/frontend/src/components/MkPullToRefresh.vue
@@ -27,6 +27,7 @@ import { onMounted, onUnmounted, ref, useTemplateRef } from 'vue';
 import { getScrollContainer } from '@@/js/scroll.js';
 import { i18n } from '@/i18n.js';
 import { isHorizontalSwipeSwiping } from '@/utility/touch.js';
+import { haptic } from '@/utility/haptic.js';
 
 const SCROLL_STOP = 10;
 const MAX_PULL_DISTANCE = Infinity;
@@ -203,6 +204,8 @@ function moving(event: MouseEvent | TouchEvent) {
 	pullDistance.value = Math.min(Math.max(moveHeight, 0), MAX_PULL_DISTANCE);
 
 	isPulledEnough.value = pullDistance.value >= FIRE_THRESHOLD;
+
+	if (isPulledEnough.value) haptic();
 }
 
 /**
diff --git a/packages/frontend/src/components/MkSwitch.vue b/packages/frontend/src/components/MkSwitch.vue
index 92359b773a..9a2bea3616 100644
--- a/packages/frontend/src/components/MkSwitch.vue
+++ b/packages/frontend/src/components/MkSwitch.vue
@@ -30,6 +30,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 import { toRefs } from 'vue';
 import type { Ref } from 'vue';
 import XButton from '@/components/MkSwitch.button.vue';
+import { haptic } from '@/utility/haptic.js';
 
 const props = defineProps<{
 	modelValue: boolean | Ref<boolean>;
@@ -48,6 +49,8 @@ const toggle = () => {
 	if (props.disabled) return;
 	emit('update:modelValue', !checked.value);
 	emit('change', !checked.value);
+
+	haptic();
 };
 </script>
 
diff --git a/packages/frontend/src/pages/settings/other.vue b/packages/frontend/src/pages/settings/other.vue
index 30ab2ce11e..730cce183a 100644
--- a/packages/frontend/src/pages/settings/other.vue
+++ b/packages/frontend/src/pages/settings/other.vue
@@ -99,6 +99,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 						<MkSwitch v-model="enableFolderPageView">
 							<template #label>Enable folder page view</template>
 						</MkSwitch>
+						<MkSwitch v-model="enableHapticFeedback">
+							<template #label>Enable haptic feedback</template>
+						</MkSwitch>
 					</div>
 				</MkFolder>
 			</SearchMarker>
@@ -173,6 +176,7 @@ const skipNoteRender = prefer.model('skipNoteRender');
 const devMode = prefer.model('devMode');
 const stackingRouterView = prefer.model('experimental.stackingRouterView');
 const enableFolderPageView = prefer.model('experimental.enableFolderPageView');
+const enableHapticFeedback = prefer.model('experimental.enableHapticFeedback');
 
 watch(skipNoteRender, () => {
 	suggestReload();
diff --git a/packages/frontend/src/preferences/def.ts b/packages/frontend/src/preferences/def.ts
index f6370c8c78..7b045687d6 100644
--- a/packages/frontend/src/preferences/def.ts
+++ b/packages/frontend/src/preferences/def.ts
@@ -498,4 +498,7 @@ export const PREF_DEF = definePreferences({
 	'experimental.enableFolderPageView': {
 		default: false,
 	},
+	'experimental.enableHapticFeedback': {
+		default: false,
+	},
 });
diff --git a/packages/frontend/src/utility/haptic.ts b/packages/frontend/src/utility/haptic.ts
new file mode 100644
index 0000000000..6f4706d202
--- /dev/null
+++ b/packages/frontend/src/utility/haptic.ts
@@ -0,0 +1,13 @@
+/*
+ * SPDX-FileCopyrightText: syuilo and misskey-project
+ * SPDX-License-Identifier: AGPL-3.0-only
+ */
+
+import { haptic as _haptic } from 'ios-haptics';
+import { prefer } from '@/preferences.js';
+
+export function haptic() {
+	if (prefer.s['experimental.enableHapticFeedback']) {
+		_haptic();
+	}
+}