feat(editor): handle tabs after connection disconnect

apps/desktop/src/lib/__tests__/app/openTabsPersistence.spec.ts

@@ -250,3 +250,28 @@ describe("openTabsPersistence originalSql round-trip", () => {
     });
   });
 });
+
+describe("openTabsPersistence detached connection tabs", () => {
+  it("preserves the original connection name of a kept SQL tab across a round-trip", () => {
+    const [restored] = roundTrip([queryTab({ connectionId: "deleted-conn", detachedConnectionName: "prod" })]);
+
+    expect(restored.connectionId).toBe("deleted-conn");
+    expect(restored.detachedConnectionName).toBe("prod");
+  });
+
+  it("keeps a detached SQL tab even though its connection no longer exists", () => {
+    const saved = serializeOpenTabs([queryTab({ id: "orphan", connectionId: "deleted-conn", detachedConnectionName: "prod" })]);
+
+    const { tabs } = restoreOpenTabsPayload({ tabs: saved, activeTabId: "orphan" }, { validConnectionIds: ["other-conn"] });
+
+    // SQL 页签不受 validConnectionIds 过滤，删除连接后保留下来的草稿页签才能跨重启存活。
+    expect(tabs.map((tab) => tab.id)).toEqual(["orphan"]);
+    expect(tabs[0].detachedConnectionName).toBe("prod");
+  });
+
+  it("omits the detached connection name when the tab is bound to a live connection", () => {
+    const [saved] = serializeOpenTabs([queryTab({})]);
+
+    expect(saved.detachedConnectionName).toBeUndefined();
+  });
+});

apps/desktop/src/lib/app/openTabsPersistence.ts

@@ -23,6 +23,8 @@ export interface SavedOpenTab {
   customTitle?: boolean;
   connectionId: string;
   database: string;
+  /** 原连接已被删除但页签被保留时记录的原连接名，用于新建同名连接后重新绑定。 */
+  detachedConnectionName?: string;
   catalog?: string;
   schema?: string;
   sql: string;
@@ -163,6 +165,7 @@ export function serializeOpenTabs(tabs: QueryTab[]): SavedOpenTab[] {
     ...(tab.customTitle ? { customTitle: true } : {}),
     connectionId: tab.connectionId,
     database: tab.database,
+    ...(tab.detachedConnectionName ? { detachedConnectionName: tab.detachedConnectionName } : {}),
     ...(tab.catalog !== undefined ? { catalog: tab.catalog } : {}),
     schema: tab.schema,
     sql: shouldPersistTabSql(tab) ? tab.sql : "",

apps/desktop/src/lib/database/visibleDatabases.ts

@@ -300,3 +300,8 @@ const DRAFT_VISIBLE_SCHEMAS_PREFIX = "__visible_schema_draft_";
 export function buildDraftVisibleSchemasConnectionId(seed: string): string {
   return `${DRAFT_VISIBLE_SCHEMAS_PREFIX}${seed}`;
 }
+
+/** 可见 schema 选择器用的临时连接：只存在于弹窗交互期间，不是用户保存的连接。 */
+export function isDraftVisibleSchemasConnectionId(connectionId: string): boolean {
+  return connectionId.startsWith(DRAFT_VISIBLE_SCHEMAS_PREFIX);
+}

apps/desktop/src/lib/settings/editorSettingsDraft.ts

@@ -84,6 +84,8 @@ export const EDITOR_SETTINGS_DRAFT_KEYS = [
   "sidebarBrowseObjectsOnDatabaseActivation",
   "openTabsRestoreMode",
   "disconnectTabHandlingMode",
+  "deleteConnectionTabHandlingMode",
+  "rememberConnectionDatabaseOnDelete",
   "dataTabReuseMode",
   "openDataTabsNextToActive",
   "prefillNewQueryWithSelect",

apps/desktop/src/lib/settings/settingsSearch.ts

@@ -198,6 +198,8 @@ export const SETTINGS_SEARCH_DEFINITIONS: readonly SettingsSearchDefinition[] =
   { id: "navigation-hidden-tables", category: "navigation", titleKey: "settings.sidebarHiddenTablePrefixes", descriptionKey: "settings.sidebarHiddenTablePrefixesDescription", targetId: "navigation" },
   { id: "navigation-table-page-size", category: "navigation", titleKey: "settings.sidebarTablePageSize", descriptionKey: "settings.sidebarTablePageSizeDescription", targetId: "navigation" },
   { id: "navigation-disconnect-tabs", category: "navigation", titleKey: "settings.disconnectTabHandlingMode", descriptionKey: "settings.disconnectTabHandlingModeDescription", targetId: "navigation" },
+  { id: "navigation-delete-connection-tabs", category: "navigation", titleKey: "settings.deleteConnectionTabHandlingMode", descriptionKey: "settings.deleteConnectionTabHandlingModeDescription", targetId: "navigation" },
+  { id: "navigation-remember-connection-database", category: "navigation", titleKey: "settings.rememberConnectionDatabaseOnDelete", descriptionKey: "settings.rememberConnectionDatabaseOnDeleteDescription", targetId: "navigation" },
   { id: "query-page-size", category: "data", titleKey: "settings.queryPageSize", descriptionKey: "settings.queryPageSizeDescription", targetId: "data" },
   { id: "data-page-size", category: "data", titleKey: "settings.tableOpenPageSize", descriptionKey: "settings.tableOpenPageSizeDescription", targetId: "data" },
   { id: "data-table-open-sort-mode", category: "data", titleKey: "settings.tableOpenSortMode", descriptionKey: "settings.tableOpenSortDescription", targetId: "data" },

apps/desktop/src/lib/settings/settingsTransfer.ts

@@ -121,6 +121,8 @@ const SETTINGS_TRANSFER_CATEGORY_KEYS: Record<SettingsTransferCategoryId, readon
     "sidebarBrowseObjectsOnDatabaseActivation",
     "openTabsRestoreMode",
     "disconnectTabHandlingMode",
+    "deleteConnectionTabHandlingMode",
+    "rememberConnectionDatabaseOnDelete",
     "dataTabReuseMode",
     "openDataTabsNextToActive",
     "clickTableNavigationTarget",

apps/desktop/src/lib/tabs/__tests__/deletedConnectionTabs.spec.ts

@@ -0,0 +1,11 @@
+import { describe, expect, it } from "vitest";
+import { deletedConnectionTabKeepMode } from "@/lib/tabs/deletedConnectionTabs";
+
+describe("deletedConnectionTabKeepMode", () => {
+  it("maps each delete-time tab handling mode to its keep scope", () => {
+    expect(deletedConnectionTabKeepMode("close-tabs")).toBe("none");
+    expect(deletedConnectionTabKeepMode("keep-sql-tabs")).toBe("sql");
+    expect(deletedConnectionTabKeepMode("keep-pinned-sql-tabs")).toBe("pinned-sql");
+    expect(deletedConnectionTabKeepMode("keep-all-tabs")).toBe("all");
+  });
+});

apps/desktop/src/lib/tabs/deletedConnectionTabs.ts

@@ -0,0 +1,21 @@
+import type { DeleteConnectionTabHandlingMode } from "@/stores/settingsStore";
+
+/**
+ * 删除连接时对已打开页签的保留范围。
+ *
+ * 与「断开连接」不同，删除后连接配置已从磁盘移除、无法再重连，因此被保留下来的
+ * SQL 页签只是草稿工作区；它们会记录原连接名，等新建同名连接时再重新绑定。
+ *
+ * - `none`：关闭全部页签
+ * - `sql`：保留全部 SQL 页签（清空结果），其余关闭
+ * - `pinned-sql`：只保留固定的 SQL 页签（清空结果），其余关闭
+ * - `all`：不关闭任何页签，保留 SQL 文本与当前结果，只回滚事务
+ */
+export type DeletedConnectionTabKeepMode = "none" | "sql" | "pinned-sql" | "all";
+
+export function deletedConnectionTabKeepMode(mode: DeleteConnectionTabHandlingMode): DeletedConnectionTabKeepMode {
+  if (mode === "keep-sql-tabs") return "sql";
+  if (mode === "keep-pinned-sql-tabs") return "pinned-sql";
+  if (mode === "keep-all-tabs") return "all";
+  return "none";
+}