feat(grid): copy selection aggregate values on click

apps/desktop/src/components/grid/DataGrid.vue

@@ -15475,6 +15475,7 @@ useUpdateBlocker(() => (hasPendingChanges.value || hasPendingDataEditorDraft.val
         :selection-summary="selectionSummary"
         :selection-summary-sum-text="selectionSummarySumText"
         :selection-summary-average-text="selectionSummaryAverageText"
+        :selection-summary-pending="isSelectingCells"
         :loading="gridPaginationBusy || infiniteScrollLoading"
         :infinite-scroll-enabled="infiniteScrollEnabled"
         :infinite-scroll-all-loaded="infiniteScrollAllLoaded"
@@ -15500,6 +15501,7 @@ useUpdateBlocker(() => (hasPendingChanges.value || hasPendingDataEditorDraft.val
         @last-page="lastPage"
         @load-all-rows="loadAllRowsAndGoToLast"
         @select-export="selectExportMenuItem"
+        @copy-selection-summary="copyText"
       />
     </div>
 

apps/desktop/src/components/grid/DataGridPagination.vue

@@ -17,6 +17,8 @@ const props = withDefaults(
     selectionSummary: { cellCount: number; rowCount: number } | null;
     selectionSummarySumText: string;
     selectionSummaryAverageText: string;
+    // 拖拽选区期间聚合值只是占位符，父组件把该状态传下来，值不可复制
+    selectionSummaryPending?: boolean;
     loading: boolean;
     infiniteScrollEnabled: boolean;
     infiniteScrollAllLoaded: boolean;
@@ -33,7 +35,7 @@ const props = withDefaults(
     canGoNextPage: boolean;
     canJumpLastPage: boolean;
   }>(),
-  { paginationEnabled: true, loadAllRowsActive: false, loadAllRowsEnabled: true, canLoadAllRows: false, canExport: true },
+  { paginationEnabled: true, loadAllRowsActive: false, loadAllRowsEnabled: true, canLoadAllRows: false, canExport: true, selectionSummaryPending: false },
 );
 
 const customPageSizeInput = defineModel<string>("customPageSizeInput", { default: "" });
@@ -56,8 +58,18 @@ const emit = defineEmits<{
   loadAllRows: [];
   selectExport: [value: string];
   applyCustomPageSizeAndSetDefault: [];
+  // 载荷是聚合值当前显示出来的文本，保证复制到的就是用户看到的那个数
+  copySelectionSummary: [text: string];
 }>();
 
+// 拖拽选区中聚合值显示为占位符 "…"，此时不给复制入口，避免复制出一个假值
+const selectionSummaryValueClass = computed(() => (props.selectionSummaryPending ? "" : "cursor-pointer transition-colors hover:text-foreground"));
+
+function copySelectionSummaryValue(text: string) {
+  if (props.selectionSummaryPending) return;
+  emit("copySelectionSummary", text);
+}
+
 watch(
   () => props.currentPage,
   (page) => {
@@ -93,8 +105,12 @@ function handlePageInputKeydown(event: KeyboardEvent) {
 <template>
   <div class="flex min-w-max items-center justify-end gap-1">
     <div v-if="selectionSummary" class="flex shrink-0 items-center gap-3 tabular-nums">
-      <span class="shrink-0">{{ t("grid.selectionSum", { value: selectionSummarySumText }) }}</span>
-      <span class="shrink-0">{{ t("grid.selectionAverage", { value: selectionSummaryAverageText }) }}</span>
+      <button type="button" class="shrink-0 text-left" :class="selectionSummaryValueClass" :title="selectionSummaryPending ? undefined : t('grid.copyValue')" :disabled="selectionSummaryPending" data-selection-summary-sum @click="copySelectionSummaryValue(selectionSummarySumText)">
+        <span v-if="!selectionSummaryPending" class="sr-only">{{ t("grid.copyValue") }}: </span>{{ t("grid.selectionSum", { value: selectionSummarySumText }) }}
+      </button>
+      <button type="button" class="shrink-0 text-left" :class="selectionSummaryValueClass" :title="selectionSummaryPending ? undefined : t('grid.copyValue')" :disabled="selectionSummaryPending" data-selection-summary-average @click="copySelectionSummaryValue(selectionSummaryAverageText)">
+        <span v-if="!selectionSummaryPending" class="sr-only">{{ t("grid.copyValue") }}: </span>{{ t("grid.selectionAverage", { value: selectionSummaryAverageText }) }}
+      </button>
       <div class="flex shrink-0 items-center gap-1">
         <span class="shrink-0">{{ t("grid.selectionCells", { count: selectionSummary.cellCount }) }}</span>
         <span class="shrink-0">{{ t("grid.rows", { count: selectionSummary.rowCount }) }}</span>

apps/desktop/src/components/grid/__tests__/DataGridSurfaces.spec.ts

@@ -461,6 +461,78 @@ describe("DataGridPagination", () => {
     const exportMenus = findAll(mounted.root, (node) => node.props["data-stub"] === "LightDropdown" && node.props["aria-label"] === "grid.export");
     expect(exportMenus).toHaveLength(1);
   });
+
+  it("copies each aggregate value on click, and only the values", () => {
+    const copySelectionSummary = vi.fn();
+    const mounted = mountComponent(DataGridPagination, {
+      selectionSummary: { cellCount: 4, rowCount: 2 },
+      selectionSummarySumText: "10",
+      selectionSummaryAverageText: "2.5",
+      loading: false,
+      infiniteScrollEnabled: false,
+      infiniteScrollAllLoaded: false,
+      pageSize: 100,
+      customPageSizeInput: "",
+      pageSizeMenuItems: [],
+      exportMenuItems: [],
+      currentPage: 1,
+      canGoNextPage: false,
+      canJumpLastPage: false,
+      onCopySelectionSummary: copySelectionSummary,
+    });
+
+    const sum = findOne(mounted.root, (node) => node.props["data-selection-summary-sum"] === "");
+    const average = findOne(mounted.root, (node) => node.props["data-selection-summary-average"] === "");
+    // Native buttons provide tab focus plus Enter/Space activation without recreating
+    // the complete button interaction model on a clickable text span.
+    expect(sum.type).toBe("button");
+    expect(average.type).toBe("button");
+    expect(sum.props.title).toBe("grid.copyValue");
+    expect(hostText(sum)).toContain("grid.copyValue");
+
+    dispatch(sum, "click");
+    expect(copySelectionSummary).toHaveBeenCalledWith("10");
+
+    dispatch(average, "click");
+    expect(copySelectionSummary).toHaveBeenLastCalledWith("2.5");
+    expect(copySelectionSummary).toHaveBeenCalledTimes(2);
+  });
+
+  it("keeps the aggregate values non-copyable while the selection drag is pending", () => {
+    const copySelectionSummary = vi.fn();
+    const mounted = mountComponent(DataGridPagination, {
+      selectionSummary: { cellCount: 4, rowCount: 2 },
+      selectionSummarySumText: "…",
+      selectionSummaryAverageText: "…",
+      selectionSummaryPending: true,
+      loading: false,
+      infiniteScrollEnabled: false,
+      infiniteScrollAllLoaded: false,
+      pageSize: 100,
+      customPageSizeInput: "",
+      pageSizeMenuItems: [],
+      exportMenuItems: [],
+      currentPage: 1,
+      canGoNextPage: false,
+      canJumpLastPage: false,
+      onCopySelectionSummary: copySelectionSummary,
+    });
+
+    const sum = findOne(mounted.root, (node) => node.props["data-selection-summary-sum"] === "");
+    // Pending aggregate placeholders retain their layout but expose no copy action.
+    expect(sum.props.title).toBeUndefined();
+    expect(sum.props.disabled).toBe(true);
+
+    dispatch(sum, "click");
+    expect(copySelectionSummary).not.toHaveBeenCalled();
+  });
+});
+
+describe("DataGrid selection summary copy wiring", () => {
+  it("routes the pagination aggregate copy through the grid clipboard helper", () => {
+    expect(dataGridSource).toMatch(/@copy-selection-summary="copyText"/);
+    expect(dataGridSource).toMatch(/:selection-summary-pending="isSelectingCells"/);
+  });
 });
 
 describe("DataGridColumnHeader", () => {