enhance(frontend): 外部アプリ認証画面の改良 (#14828)

* enhance(frontend): 外部アプリ認証画面の改良

* 🎨

* lint

* Update Changelog

* indent

* lint

* enhance: miauthのリダイレクト先をUI内でも表示するように

* 🎨

* fix

* fix

packages/frontend/src/account.ts

@@ -235,26 +235,6 @@ export async function openAccountMenu(opts: {
 }, ev: MouseEvent) {
 	if (!$i) return;
 
-	function showSigninDialog() {
-		const { dispose } = popup(defineAsyncComponent(() => import('@/components/MkSigninDialog.vue')), {}, {
-			done: (res: Misskey.entities.SigninFlowResponse & { finished: true }) => {
-				addAccount(res.id, res.i);
-				success();
-			},
-			closed: () => dispose(),
-		});
-	}
-
-	function createAccount() {
-		const { dispose } = popup(defineAsyncComponent(() => import('@/components/MkSignupDialog.vue')), {}, {
-			done: (res: Misskey.entities.SignupResponse) => {
-				addAccount(res.id, res.token);
-				switchAccountWithToken(res.token);
-			},
-			closed: () => dispose(),
-		});
-	}
-
 	async function switchAccount(account: Misskey.entities.UserDetailed) {
 		const storedAccounts = await getAccounts();
 		const found = storedAccounts.find(x => x.id === account.id);
@@ -323,10 +303,22 @@ export async function openAccountMenu(opts: {
 			text: i18n.ts.addAccount,
 			children: [{
 				text: i18n.ts.existingAccount,
-				action: () => { showSigninDialog(); },
+				action: () => {
+					getAccountWithSigninDialog().then(res => {
+						if (res != null) {
+							success();
+						}
+					});
+				},
 			}, {
 				text: i18n.ts.createAccount,
-				action: () => { createAccount(); },
+				action: () => {
+					getAccountWithSignupDialog().then(res => {
+						if (res != null) {
+							switchAccountWithToken(res.token);
+						}
+					});
+				},
 			}],
 		}, {
 			type: 'link',
@@ -347,6 +339,40 @@ export async function openAccountMenu(opts: {
 	});
 }
 
+export function getAccountWithSigninDialog(): Promise<{ id: string, token: string } | null> {
+	return new Promise((resolve) => {
+		const { dispose } = popup(defineAsyncComponent(() => import('@/components/MkSigninDialog.vue')), {}, {
+			done: async (res: Misskey.entities.SigninFlowResponse & { finished: true }) => {
+				await addAccount(res.id, res.i);
+				resolve({ id: res.id, token: res.i });
+			},
+			cancelled: () => {
+				resolve(null);
+			},
+			closed: () => {
+				dispose();
+			},
+		});
+	});
+}
+
+export function getAccountWithSignupDialog(): Promise<{ id: string, token: string } | null> {
+	return new Promise((resolve) => {
+		const { dispose } = popup(defineAsyncComponent(() => import('@/components/MkSignupDialog.vue')), {}, {
+			done: async (res: Misskey.entities.SignupResponse) => {
+				await addAccount(res.id, res.token);
+				resolve({ id: res.id, token: res.token });
+			},
+			cancelled: () => {
+				resolve(null);
+			},
+			closed: () => {
+				dispose();
+			},
+		});
+	});
+}
+
 if (_DEV_) {
 	(window as any).$i = $i;
 }