fix(frontend/pageMetadata): ページタイトルが更新されない問題 (#13289)

Co-authored-by: syuilo <Syuilotan@yahoo.co.jp>
Co-authored-by: syuilo <4439005+syuilo@users.noreply.github.com>

6 files changed, 82 insertions, 42 deletions

diff --git a/packages/frontend/src/ui/classic.vue b/packages/frontend/src/ui/classic.vue
index 6e28a86c29..b833e9f6be 100644
--- a/packages/frontend/src/ui/classic.vue
+++ b/packages/frontend/src/ui/classic.vue
@@ -52,7 +52,7 @@ import XCommon from './_common_/common.vue';
 import { instanceName } from '@/config.js';
 import { StickySidebar } from '@/scripts/sticky-sidebar.js';
 import * as os from '@/os.js';
-import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata.js';
+import { PageMetadata, provideMetadataReceiver, provideReactiveMetadata } from '@/scripts/page-metadata.js';
 import { defaultStore } from '@/store.js';
 import { i18n } from '@/i18n.js';
 import { miLocalStorage } from '@/local-storage.js';
@@ -60,11 +60,13 @@ import { mainRouter } from '@/router/main.js';
 const XHeaderMenu = defineAsyncComponent(() => import('./classic.header.vue'));
 const XWidgets = defineAsyncComponent(() => import('./universal.widgets.vue'));
 
+const isRoot = computed(() => mainRouter.currentRoute.value.name === 'index');
+
 const DESKTOP_THRESHOLD = 1100;
 
 const isDesktop = ref(window.innerWidth >= DESKTOP_THRESHOLD);
 
-const pageMetadata = ref<null | PageMetadata>();
+const pageMetadata = ref<null | PageMetadata>(null);
 const widgetsShowing = ref(false);
 const fullView = ref(false);
 const globalHeaderHeight = ref(0);
@@ -75,12 +77,18 @@ const widgetsLeft = ref<HTMLElement>();
 const widgetsRight = ref<HTMLElement>();
 
 provide('router', mainRouter);
-provideMetadataReceiver((info) => {
-	pageMetadata.value = info.value;
+provideMetadataReceiver((metadataGetter) => {
+	const info = metadataGetter();
+	pageMetadata.value = info;
 	if (pageMetadata.value) {
-		document.title = `${pageMetadata.value.title} | ${instanceName}`;
+		if (isRoot.value && pageMetadata.value.title === instanceName) {
+			document.title = pageMetadata.value.title;
+		} else {
+			document.title = `${pageMetadata.value.title} | ${instanceName}`;
+		}
 	}
 });
+provideReactiveMetadata(pageMetadata);
 provide('shouldHeaderThin', showMenuOnTop.value);
 provide('forceSpacerMin', true);
 
diff --git a/packages/frontend/src/ui/deck/main-column.vue b/packages/frontend/src/ui/deck/main-column.vue
index b7c48e6a3a..79c9671917 100644
--- a/packages/frontend/src/ui/deck/main-column.vue
+++ b/packages/frontend/src/ui/deck/main-column.vue
@@ -6,9 +6,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 <template>
 <XColumn v-if="deckStore.state.alwaysShowMainColumn || mainRouter.currentRoute.value.name !== 'index'" :column="column" :isStacked="isStacked">
 	<template #header>
-		<template v-if="pageMetadata?.value">
-			<i :class="pageMetadata?.value.icon"></i>
-			{{ pageMetadata?.value.title }}
+		<template v-if="pageMetadata">
+			<i :class="pageMetadata.icon"></i>
+			{{ pageMetadata.title }}
 		</template>
 	</template>
 
@@ -19,12 +19,12 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { ComputedRef, provide, shallowRef, ref } from 'vue';
+import { provide, shallowRef, ref } from 'vue';
 import XColumn from './column.vue';
 import { deckStore, Column } from '@/ui/deck/deck-store.js';
 import * as os from '@/os.js';
 import { i18n } from '@/i18n.js';
-import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata.js';
+import { PageMetadata, provideMetadataReceiver, provideReactiveMetadata } from '@/scripts/page-metadata.js';
 import { useScrollPositionManager } from '@/nirax.js';
 import { getScrollContainer } from '@/scripts/scroll.js';
 import { mainRouter } from '@/router/main.js';
@@ -35,12 +35,14 @@ defineProps<{
 }>();
 
 const contents = shallowRef<HTMLElement>();
-const pageMetadata = ref<null | ComputedRef<PageMetadata>>();
+const pageMetadata = ref<null | PageMetadata>(null);
 
 provide('router', mainRouter);
-provideMetadataReceiver((info) => {
+provideMetadataReceiver((metadataGetter) => {
+	const info = metadataGetter();
 	pageMetadata.value = info;
 });
+provideReactiveMetadata(pageMetadata);
 
 /*
 function back() {
diff --git a/packages/frontend/src/ui/minimum.vue b/packages/frontend/src/ui/minimum.vue
index 67bbeb3074..db5eb19c20 100644
--- a/packages/frontend/src/ui/minimum.vue
+++ b/packages/frontend/src/ui/minimum.vue
@@ -14,21 +14,29 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { provide, ComputedRef, ref } from 'vue';
+import { computed, provide, ref } from 'vue';
 import XCommon from './_common_/common.vue';
-import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata.js';
+import { PageMetadata, provideMetadataReceiver, provideReactiveMetadata } from '@/scripts/page-metadata.js';
 import { instanceName } from '@/config.js';
 import { mainRouter } from '@/router/main.js';
 
-const pageMetadata = ref<null | ComputedRef<PageMetadata>>();
+const isRoot = computed(() => mainRouter.currentRoute.value.name === 'index');
+
+const pageMetadata = ref<null | PageMetadata>(null);
 
 provide('router', mainRouter);
-provideMetadataReceiver((info) => {
+provideMetadataReceiver((metadataGetter) => {
+	const info = metadataGetter();
 	pageMetadata.value = info;
-	if (pageMetadata.value.value) {
-		document.title = `${pageMetadata.value.value.title} | ${instanceName}`;
+	if (pageMetadata.value) {
+		if (isRoot.value && pageMetadata.value.title === instanceName) {
+			document.title = pageMetadata.value.title;
+		} else {
+			document.title = `${pageMetadata.value.title} | ${instanceName}`;
+		}
 	}
 });
+provideReactiveMetadata(pageMetadata);
 
 document.documentElement.style.overflowY = 'scroll';
 </script>
diff --git a/packages/frontend/src/ui/universal.vue b/packages/frontend/src/ui/universal.vue
index 2129441d28..3cb6f598a6 100644
--- a/packages/frontend/src/ui/universal.vue
+++ b/packages/frontend/src/ui/universal.vue
@@ -26,7 +26,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 	<div v-if="isMobile" ref="navFooter" :class="$style.nav">
 		<button :class="$style.navButton" class="_button" @click="drawerMenuShowing = true"><i :class="$style.navButtonIcon" class="ti ti-menu-2"></i><span v-if="menuIndicated" :class="$style.navButtonIndicator"><i class="_indicatorCircle"></i></span></button>
-		<button :class="$style.navButton" class="_button" @click="mainRouter.currentRoute.value.name === 'index' ? top() : mainRouter.push('/')"><i :class="$style.navButtonIcon" class="ti ti-home"></i></button>
+		<button :class="$style.navButton" class="_button" @click="isRoot ? top() : mainRouter.push('/')"><i :class="$style.navButtonIcon" class="ti ti-home"></i></button>
 		<button :class="$style.navButton" class="_button" @click="mainRouter.push('/my/notifications')">
 			<i :class="$style.navButtonIcon" class="ti ti-bell"></i>
 			<span v-if="$i?.hasUnreadNotification" :class="$style.navButtonIndicator">
@@ -105,7 +105,7 @@ import { defaultStore } from '@/store.js';
 import { navbarItemDef } from '@/navbar.js';
 import { i18n } from '@/i18n.js';
 import { $i } from '@/account.js';
-import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata.js';
+import { PageMetadata, provideMetadataReceiver, provideReactiveMetadata } from '@/scripts/page-metadata.js';
 import { deviceKind } from '@/scripts/device-kind.js';
 import { miLocalStorage } from '@/local-storage.js';
 import { CURRENT_STICKY_BOTTOM } from '@/const.js';
@@ -117,6 +117,8 @@ const XSidebar = defineAsyncComponent(() => import('@/ui/_common_/navbar.vue'));
 const XStatusBars = defineAsyncComponent(() => import('@/ui/_common_/statusbars.vue'));
 const XAnnouncements = defineAsyncComponent(() => import('@/ui/_common_/announcements.vue'));
 
+const isRoot = computed(() => mainRouter.currentRoute.value.name === 'index');
+
 const DESKTOP_THRESHOLD = 1100;
 const MOBILE_THRESHOLD = 500;
 
@@ -127,18 +129,24 @@ window.addEventListener('resize', () => {
 	isMobile.value = deviceKind === 'smartphone' || window.innerWidth <= MOBILE_THRESHOLD;
 });
 
-const pageMetadata = ref<null | PageMetadata>();
+const pageMetadata = ref<null | PageMetadata>(null);
 const widgetsShowing = ref(false);
 const navFooter = shallowRef<HTMLElement>();
 const contents = shallowRef<InstanceType<typeof MkStickyContainer>>();
 
 provide('router', mainRouter);
-provideMetadataReceiver((info) => {
-	pageMetadata.value = info.value;
+provideMetadataReceiver((metadataGetter) => {
+	const info = metadataGetter();
+	pageMetadata.value = info;
 	if (pageMetadata.value) {
-		document.title = `${pageMetadata.value.title} | ${instanceName}`;
+		if (isRoot.value && pageMetadata.value.title === instanceName) {
+			document.title = pageMetadata.value.title;
+		} else {
+			document.title = `${pageMetadata.value.title} | ${instanceName}`;
+		}
 	}
 });
+provideReactiveMetadata(pageMetadata);
 
 const menuIndicated = computed(() => {
 	for (const def in navbarItemDef) {
diff --git a/packages/frontend/src/ui/visitor.vue b/packages/frontend/src/ui/visitor.vue
index 05c73efe28..29b305d9bc 100644
--- a/packages/frontend/src/ui/visitor.vue
+++ b/packages/frontend/src/ui/visitor.vue
@@ -5,9 +5,9 @@ SPDX-License-Identifier: AGPL-3.0-only
 
 <template>
 <div class="mk-app">
-	<a v-if="root" href="https://github.com/misskey-dev/misskey" target="_blank" class="github-corner" aria-label="View source on GitHub"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:var(--panel); color:var(--fg); position: fixed; z-index: 10; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a>
+	<a v-if="isRoot" href="https://github.com/misskey-dev/misskey" target="_blank" class="github-corner" aria-label="View source on GitHub"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:var(--panel); color:var(--fg); position: fixed; z-index: 10; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a>
 
-	<div v-if="!narrow && !root" class="side">
+	<div v-if="!narrow && !isRoot" class="side">
 		<div class="banner" :style="{ backgroundImage: instance.backgroundImageUrl ? `url(${ instance.backgroundImageUrl })` : 'none' }"></div>
 		<div class="dashboard">
 			<MkVisitorDashboard/>
@@ -15,7 +15,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 	</div>
 
 	<div class="main">
-		<div v-if="!root" class="header">
+		<div v-if="!isRoot" class="header">
 			<div v-if="narrow === false" class="wide">
 				<MkA to="/" class="link" activeClass="active"><i class="ti ti-home icon"></i> {{ i18n.ts.home }}</MkA>
 				<MkA v-if="isTimelineAvailable" to="/timeline" class="link" activeClass="active"><i class="ti ti-message icon"></i> {{ i18n.ts.timeline }}</MkA>
@@ -29,7 +29,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 			</div>
 		</div>
 		<div class="contents">
-			<main v-if="!root" style="container-type: inline-size;">
+			<main v-if="!isRoot" style="container-type: inline-size;">
 				<RouterView/>
 			</main>
 			<main v-else>
@@ -69,7 +69,7 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { ComputedRef, onMounted, provide, ref, computed } from 'vue';
+import { onMounted, provide, ref, computed } from 'vue';
 import * as Misskey from 'misskey-js';
 import XCommon from './_common_/common.vue';
 import { instanceName } from '@/config.js';
@@ -79,22 +79,30 @@ import { instance } from '@/instance.js';
 import XSigninDialog from '@/components/MkSigninDialog.vue';
 import XSignupDialog from '@/components/MkSignupDialog.vue';
 import { ColdDeviceStorage, defaultStore } from '@/store.js';
-import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata.js';
+import { PageMetadata, provideMetadataReceiver, provideReactiveMetadata } from '@/scripts/page-metadata.js';
 import { i18n } from '@/i18n.js';
 import MkVisitorDashboard from '@/components/MkVisitorDashboard.vue';
 import { mainRouter } from '@/router/main.js';
 
+const isRoot = computed(() => mainRouter.currentRoute.value.name === 'index');
+
 const DESKTOP_THRESHOLD = 1100;
 
-const pageMetadata = ref<null | ComputedRef<PageMetadata>>();
+const pageMetadata = ref<null | PageMetadata>(null);
 
 provide('router', mainRouter);
-provideMetadataReceiver((info) => {
+provideMetadataReceiver((metadataGetter) => {
+	const info = metadataGetter();
 	pageMetadata.value = info;
-	if (pageMetadata.value.value) {
-		document.title = `${pageMetadata.value.value.title} | ${instanceName}`;
+	if (pageMetadata.value) {
+		if (isRoot.value && pageMetadata.value.title === instanceName) {
+			document.title = pageMetadata.value.title;
+		} else {
+			document.title = `${pageMetadata.value.title} | ${instanceName}`;
+		}
 	}
 });
+provideReactiveMetadata(pageMetadata);
 
 const announcements = {
 	endpoint: 'announcements',
@@ -120,8 +128,6 @@ const keymap = computed(() => {
 	};
 });
 
-const root = computed(() => mainRouter.currentRoute.value.name === 'index');
-
 misskeyApi('meta', { detail: true }).then(res => {
 	meta.value = res;
 });
diff --git a/packages/frontend/src/ui/zen.vue b/packages/frontend/src/ui/zen.vue
index 6e68abf771..bb8cffaf52 100644
--- a/packages/frontend/src/ui/zen.vue
+++ b/packages/frontend/src/ui/zen.vue
@@ -22,24 +22,32 @@ SPDX-License-Identifier: AGPL-3.0-only
 </template>
 
 <script lang="ts" setup>
-import { provide, ComputedRef, ref } from 'vue';
+import { computed, provide, ref } from 'vue';
 import XCommon from './_common_/common.vue';
-import { PageMetadata, provideMetadataReceiver } from '@/scripts/page-metadata.js';
+import { PageMetadata, provideMetadataReceiver, provideReactiveMetadata } from '@/scripts/page-metadata.js';
 import { instanceName, ui } from '@/config.js';
 import { i18n } from '@/i18n.js';
 import { mainRouter } from '@/router/main.js';
 
-const pageMetadata = ref<null | ComputedRef<PageMetadata>>();
+const isRoot = computed(() => mainRouter.currentRoute.value.name === 'index');
+
+const pageMetadata = ref<null | PageMetadata>(null);
 
 const showBottom = !(new URLSearchParams(location.search)).has('zen') && ui === 'deck';
 
 provide('router', mainRouter);
-provideMetadataReceiver((info) => {
+provideMetadataReceiver((metadataGetter) => {
+	const info = metadataGetter();
 	pageMetadata.value = info;
-	if (pageMetadata.value.value) {
-		document.title = `${pageMetadata.value.value.title} | ${instanceName}`;
+	if (pageMetadata.value) {
+		if (isRoot.value && pageMetadata.value.title === instanceName) {
+			document.title = pageMetadata.value.title;
+		} else {
+			document.title = `${pageMetadata.value.title} | ${instanceName}`;
+		}
 	}
 });
+provideReactiveMetadata(pageMetadata);
 
 function goToMisskey() {
 	window.location.href = '/';