refactor(frontend): prefer.model, store.modelではcustomRefを使用するように (#17058)

* refactor(frontend): prefer.model, store.modelではcustomRefを使用するように

* fix: watchの解除に失敗してもエラーで落ちないように

* Update packages/frontend/src/lib/pizzax.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

7 files changed, 66 insertions, 64 deletions

diff --git a/packages/frontend/src/components/MkPostForm.vue b/packages/frontend/src/components/MkPostForm.vue
index 52684bc815..4b027cf105 100644
--- a/packages/frontend/src/components/MkPostForm.vue
+++ b/packages/frontend/src/components/MkPostForm.vue
@@ -329,8 +329,8 @@ const canSaveAsServerDraft = computed((): boolean => {
 	return canPost.value && (textLength.value > 0 || files.value.length > 0 || poll.value != null);
 });
 
-const withHashtags = computed(store.makeGetterSetter('postFormWithHashtags'));
-const hashtags = computed(store.makeGetterSetter('postFormHashtags'));
+const withHashtags = store.model('postFormWithHashtags');
+const hashtags = store.model('postFormHashtags');
 
 watch(text, () => {
 	checkMissingMention();
diff --git a/packages/frontend/src/lib/pizzax.ts b/packages/frontend/src/lib/pizzax.ts
index 80543d10e4..0dd8a82957 100644
--- a/packages/frontend/src/lib/pizzax.ts
+++ b/packages/frontend/src/lib/pizzax.ts
@@ -7,7 +7,7 @@
 
 // TODO: Misskeyのドメイン知識があるのでutilityなどに移動する
 
-import { onUnmounted, ref, watch } from 'vue';
+import { customRef, ref, watch, onScopeDispose } from 'vue';
 import { BroadcastChannel } from 'broadcast-channel';
 import type { Ref } from 'vue';
 import { $i } from '@/i.js';
@@ -223,44 +223,43 @@ export class Pizzax<T extends StateDef> {
 	}
 
 	/**
-	 * 特定のキーの、簡易的なgetter/setterを作ります
+	 * 特定のキーの、簡易的なcomputed refを作ります
 	 * 主にvue上で設定コントロールのmodelとして使う用
 	 */
-	// TODO: 廃止
-	public makeGetterSetter<K extends keyof T, R = T[K]['default']>(
+	public model<K extends keyof T, R = T[K]['default']>(
+		key: K,
+	): Ref<R>;
+	public model<K extends keyof T, R extends Exclude<any, T[K]['default']>>(
+		key: K,
+		getter: (v: T[K]['default']) => R,
+		setter: (v: R) => T[K]['default'],
+	): Ref<R>;
+
+	public model<K extends keyof T, R>(
 		key: K,
 		getter?: (v: T[K]['default']) => R,
 		setter?: (v: R) => T[K]['default'],
-	): {
-			get: () => R;
-			set: (value: R) => void;
-		} {
-		const valueRef = ref(this.s[key]);
+	): Ref<R> {
+		return customRef<R>((track, trigger) => {
+			const watchStop = watch(this.r[key], () => {
+				trigger();
+			});
 
-		const stop = watch(this.r[key], val => {
-			valueRef.value = val;
-		});
+			onScopeDispose(() => {
+				watchStop();
+			}, true);
 
-		// NOTE: vueコンポーネント内で呼ばれない限りは、onUnmounted は無意味なのでメモリリークする
-		onUnmounted(() => {
-			stop();
+			return {
+				get: () => {
+					track();
+					return (getter != null ? getter(this.s[key]) : this.s[key]) as R;
+				},
+				set: (value) => {
+					const val = setter != null ? setter(value) : value;
+					this.set(key, val as T[K]['default']);
+				},
+			};
 		});
-
-		// TODO: VueのcustomRef使うと良い感じになるかも
-		return {
-			get: () => {
-				if (getter) {
-					return getter(valueRef.value);
-				} else {
-					return valueRef.value;
-				}
-			},
-			set: (value) => {
-				const val = setter ? setter(value) : value;
-				this.set(key, val);
-				valueRef.value = val;
-			},
-		};
 	}
 
 	// localStorage => indexedDBのマイグレーション
diff --git a/packages/frontend/src/pages/settings/navbar.vue b/packages/frontend/src/pages/settings/navbar.vue
index d25708dcb4..baa8fdc967 100644
--- a/packages/frontend/src/pages/settings/navbar.vue
+++ b/packages/frontend/src/pages/settings/navbar.vue
@@ -78,7 +78,7 @@ const items = ref(prefer.s.menu.map(x => ({
 })));
 const itemTypeValues = computed(() => items.value.map(x => x.type));
 
-const menuDisplay = computed(store.makeGetterSetter('menuDisplay'));
+const menuDisplay = store.model('menuDisplay');
 const showNavbarSubButtons = prefer.model('showNavbarSubButtons');
 
 async function addItem() {
diff --git a/packages/frontend/src/pages/settings/preferences.vue b/packages/frontend/src/pages/settings/preferences.vue
index 972b50f8cd..aa7f0dabbb 100644
--- a/packages/frontend/src/pages/settings/preferences.vue
+++ b/packages/frontend/src/pages/settings/preferences.vue
@@ -855,7 +855,7 @@ const $i = ensureSignin();
 
 const lang = ref(miLocalStorage.getItem('lang'));
 const dataSaver = ref(prefer.s.dataSaver);
-const realtimeMode = computed(store.makeGetterSetter('realtimeMode'));
+const realtimeMode = store.model('realtimeMode');
 
 const overridedDeviceKind = prefer.model('overridedDeviceKind');
 const pollingInterval = prefer.model('pollingInterval');
diff --git a/packages/frontend/src/pages/settings/profile.vue b/packages/frontend/src/pages/settings/profile.vue
index 7d3da470d6..8e4c39c8bb 100644
--- a/packages/frontend/src/pages/settings/profile.vue
+++ b/packages/frontend/src/pages/settings/profile.vue
@@ -190,7 +190,7 @@ const $i = ensureSignin();
 
 const Sortable = defineAsyncComponent(() => import('vuedraggable').then(x => x.default));
 
-const reactionAcceptance = computed(store.makeGetterSetter('reactionAcceptance'));
+const reactionAcceptance = store.model('reactionAcceptance');
 
 function assertVaildLang(lang: string | null): lang is keyof typeof langmap {
 	return lang != null && lang in langmap;
diff --git a/packages/frontend/src/preferences/manager.ts b/packages/frontend/src/preferences/manager.ts
index 13ba0000e4..1a1ec2b345 100644
--- a/packages/frontend/src/preferences/manager.ts
+++ b/packages/frontend/src/preferences/manager.ts
@@ -3,11 +3,11 @@
  * SPDX-License-Identifier: AGPL-3.0-only
  */
 
-import { computed, onUnmounted, ref, watch } from 'vue';
+import { customRef, ref, watch, onScopeDispose } from 'vue';
 import { EventEmitter } from 'eventemitter3';
 import { host, version } from '@@/js/config.js';
 import { PREF_DEF } from './def.js';
-import type { Ref, WritableComputedRef } from 'vue';
+import type { Ref } from 'vue';
 import type { MenuItem } from '@/types/menu.js';
 import { genId } from '@/utility/id.js';
 import { copyToClipboard } from '@/utility/copy-to-clipboard.js';
@@ -299,36 +299,39 @@ export class PreferencesManager extends EventEmitter<PreferencesManagerEvents> {
 	 * 特定のキーの、簡易的なcomputed refを作ります
 	 * 主にvue上で設定コントロールのmodelとして使う用
 	 */
-	public model<K extends keyof PREF, V extends ValueOf<K> = ValueOf<K>>(
+	public model<K extends keyof PREF, V = ValueOf<K>>(
+		key: K,
+	): Ref<V>;
+	public model<K extends keyof PREF, V extends Exclude<any, ValueOf<K>>>(
+		key: K,
+		getter: (v: ValueOf<K>) => V,
+		setter: (v: V) => ValueOf<K>,
+	): Ref<V>;
+
+	public model<K extends keyof PREF, V>(
 		key: K,
 		getter?: (v: ValueOf<K>) => V,
 		setter?: (v: V) => ValueOf<K>,
-	): WritableComputedRef<V> {
-		const valueRef = ref(this.s[key]);
-
-		const stop = watch(this.r[key], val => {
-			valueRef.value = val;
-		});
+	): Ref<V> {
+		return customRef<V>((track, trigger) => {
+			const watchStop = watch(this.r[key], () => {
+				trigger();
+			});
 
-		// NOTE: vueコンポーネント内で呼ばれない限りは、onUnmounted は無意味なのでメモリリークする
-		onUnmounted(() => {
-			stop();
-		});
+			onScopeDispose(() => {
+				watchStop();
+			}, true);
 
-		// TODO: VueのcustomRef使うと良い感じになるかも
-		return computed({
-			get: () => {
-				if (getter) {
-					return getter(valueRef.value);
-				} else {
-					return valueRef.value;
-				}
-			},
-			set: (value) => {
-				const val = setter ? setter(value) : value;
-				this.commit(key, val);
-				valueRef.value = val;
-			},
+			return {
+				get: () => {
+					track();
+					return (getter != null ? getter(this.s[key]) : this.s[key]) as V;
+				},
+				set: (value) => {
+					const val = setter != null ? setter(value) : value;
+					this.commit(key, val as ValueOf<K>);
+				},
+			};
 		});
 	}
 
diff --git a/packages/frontend/src/ui/_common_/navbar-h.vue b/packages/frontend/src/ui/_common_/navbar-h.vue
index ad0632965b..594c398d8b 100644
--- a/packages/frontend/src/ui/_common_/navbar-h.vue
+++ b/packages/frontend/src/ui/_common_/navbar-h.vue
@@ -67,7 +67,7 @@ const props = defineProps<{
 
 const settingsWindowed = ref(window.innerWidth > WINDOW_THRESHOLD);
 const menu = ref(prefer.s.menu);
-// const menuDisplay = computed(store.makeGetterSetter('menuDisplay'));
+// const menuDisplay = store.model('menuDisplay');
 const otherNavItemIndicated = computed<boolean>(() => {
 	for (const def in navbarItemDef) {
 		if (menu.value.includes(def)) continue;