[Feature] [UI] 统一账户选择弹窗在列表为空时的表现 (#5054)

HMCL/src/main/java/org/jackhuang/hmcl/ui/main/RootPage.java

@@ -19,6 +19,7 @@ package org.jackhuang.hmcl.ui.main;
 
 import com.jfoenix.controls.JFXPopup;
 import javafx.beans.property.ReadOnlyObjectProperty;
+import javafx.scene.control.Label;
 import javafx.scene.input.MouseButton;
 import org.jackhuang.hmcl.Metadata;
 import org.jackhuang.hmcl.auth.Account;
@@ -149,7 +150,6 @@ public class RootPage extends DecoratorAnimatedPage implements DecoratorPage {
             accountListItem.setOnAction(e -> Controllers.navigate(Controllers.getAccountListPage()));
             accountListItem.setOnMouseClicked(e -> {
                 if (e.getButton() == MouseButton.SECONDARY) {
-                    if (!Accounts.getAccounts().isEmpty())
                     showAccountListPopupMenu(accountListItem);
                     e.consume();
                 }
@@ -265,6 +265,11 @@ public class RootPage extends DecoratorAnimatedPage implements DecoratorPage {
             scrollPane.setPrefHeight(-1);
             scrollPane.setMaxHeight(260);
 
+            if (Accounts.getAccounts().isEmpty()) {
+                Label placeholder = new Label(i18n("account.empty"));
+                placeholder.setStyle("-fx-padding: 10px; -fx-text-fill: gray; -fx-font-style: italic;");
+                scrollPane.add(placeholder);
+            } else {
                 for (Account account : Accounts.getAccounts()) {
                     AccountAdvancedListItem item = new AccountAdvancedListItem(account);
                     item.setOnAction(e -> {
@@ -273,6 +278,7 @@ public class RootPage extends DecoratorAnimatedPage implements DecoratorPage {
                     });
                     scrollPane.add(item);
                 }
+            }
 
             popupMenu.getContent().add(scrollPane);
             popup.show(accountListItem, JFXPopup.PopupVPosition.TOP, JFXPopup.PopupHPosition.LEFT, accountListItem.getWidth(), 0);

HMCL/src/main/resources/assets/lang/I18N.properties

@@ -60,6 +60,7 @@ account.create.microsoft=Add a Microsoft Account
 account.create.offline=Add an Offline Account
 account.create.authlibInjector=Add an authlib-injector Account
 account.email=Email
+account.empty=No Accounts
 account.failed=Failed to refresh account.
 account.failed.character_deleted=The player has already been deleted.
 account.failed.connect_authentication_server=Failed to connect to the authentication server, your network connection may be down.

HMCL/src/main/resources/assets/lang/I18N_zh.properties

@@ -59,6 +59,7 @@ account.create.microsoft=新增 Microsoft 帳戶
 account.create.offline=新增離線模式帳戶
 account.create.authlibInjector=新增 authlib-injector 帳戶
 account.email=電子信箱
+account.empty=沒有帳戶
 account.failed=帳戶重新整理失敗
 account.failed.character_deleted=已刪除此角色
 account.failed.connect_authentication_server=無法連線至認證伺服器。可能是網路問題，請檢查裝置能否正常上網或使用代理服務。

HMCL/src/main/resources/assets/lang/I18N_zh_CN.properties

@@ -59,6 +59,7 @@ account.create.microsoft=添加微软账户
 account.create.offline=添加离线模式账户
 account.create.authlibInjector=添加外置登录账户 (authlib-injector)
 account.email=邮箱
+account.empty=没有账户
 account.failed=账户刷新失败
 account.failed.character_deleted=此角色已被删除
 account.failed.connect_authentication_server=无法连接认证服务器。可能是网络问题，请检查设备能否正常上网或使用代理服务。\n你可以点击右上角帮助按钮进行求助。