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>

1 files changed, 13 insertions, 5 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);