fix(grid): keep select all inside cell details

apps/desktop/src/composables/__tests__/useCellDetailEditor.spec.ts

@@ -0,0 +1,21 @@
+import { describe, expect, it, vi } from "vitest";
+import { EditorState } from "@codemirror/state";
+import { selectAllCellDetailText } from "@/lib/dataGrid/cellDetailSelection";
+
+describe("selectAllCellDetailText", () => {
+  it("selects the entire cell detail document", () => {
+    const state = EditorState.create({ doc: '{"name":"收入合同"}' });
+    const dispatch = vi.fn();
+
+    expect(selectAllCellDetailText({ state, dispatch } as any)).toBe(true);
+    expect(dispatch).toHaveBeenCalledWith({ selection: { anchor: 0, head: state.doc.length } });
+  });
+
+  it("handles empty cell values", () => {
+    const state = EditorState.create({ doc: "" });
+    const dispatch = vi.fn();
+
+    selectAllCellDetailText({ state, dispatch } as any);
+    expect(dispatch).toHaveBeenCalledWith({ selection: { anchor: 0, head: 0 } });
+  });
+});

apps/desktop/src/composables/useCellDetailEditor.ts

@@ -15,6 +15,7 @@ import i18n from "@/i18n";
 import EditorSearchPanel from "@/components/editor/EditorSearchPanel.vue";
 import type { EditorTheme } from "@/stores/settingsStore";
 import type { AppThemeAppearance, AppThemePalette } from "@/lib/app/appTheme";
+import { selectAllCellDetailText } from "@/lib/dataGrid/cellDetailSelection";
 
 export interface UseCellDetailEditorOptions {
   onChange?: (value: string) => void;
@@ -198,6 +199,10 @@ export function useCellDetailEditor(options: UseCellDetailEditorOptions): UseCel
         themeComp.of(theme),
         fontThemeComp.of(fontTheme),
         keymap.of([
+          {
+            key: "Mod-a",
+            run: selectAllCellDetailText,
+          },
           {
             key: "Escape",
             run: () => {
@@ -227,6 +232,9 @@ export function useCellDetailEditor(options: UseCellDetailEditorOptions): UseCel
         }),
         EditorState.readOnly.of(!!options.readOnly),
         EditorView.editable.of(!options.readOnly),
+        // Read-only CodeMirror content is not editable or focusable by default.
+        // Keep it keyboard-focusable so selection shortcuts stay inside the detail value.
+        EditorView.contentAttributes.of(options.readOnly ? { tabindex: "0" } : {}),
       ],
     });
 

apps/desktop/src/lib/dataGrid/cellDetailSelection.ts

@@ -0,0 +1,9 @@
+interface CellDetailSelectionEditor {
+  state: { doc: { length: number } };
+  dispatch(spec: { selection: { anchor: number; head: number } }): void;
+}
+
+export function selectAllCellDetailText(editor: CellDetailSelectionEditor): boolean {
+  editor.dispatch({ selection: { anchor: 0, head: editor.state.doc.length } });
+  return true;
+}