fix(desktop): prevent window drag from tab whitespace

Closes #10194

apps/desktop/src/components/layout/EditorGroupTabBar.vue

@@ -1755,7 +1755,7 @@ watch([() => props.specialPageTabs?.settingsActive, () => props.specialPageTabs?
                     </div>
                   </CustomContextMenu>
                 </template>
-                <div v-if="!section.pinned" :class="tabTailDragRegionClass" data-tauri-drag-region />
+                <div v-if="!section.pinned" :class="tabTailDragRegionClass" data-tauri-drag-region="false" />
               </div>
             </div>
           </template>

apps/desktop/src/components/layout/__tests__/AlwaysOnTopButton.spec.ts

@@ -149,6 +149,16 @@ describe("always-on-top button visibility", () => {
     setActivePinia(pinia);
   });
 
+  it("keeps the actual title bar on Tauri's intentional native drag path", async () => {
+    const { host, unmount } = mount(AppToolbar, toolbarProps);
+    await settled();
+
+    expect(host.querySelector(".app-toolbar")?.getAttribute("data-tauri-drag-region")).toBe("");
+    expect(host.querySelector('.app-toolbar > [data-tauri-drag-region=""]')).not.toBeNull();
+
+    unmount();
+  });
+
   it("hides the main toolbar pin control until the appearance setting opts in", async () => {
     const settingsStore = useSettingsStore();
     const { host, unmount } = mount(AppToolbar, toolbarProps);

apps/desktop/src/components/layout/__tests__/EditorGroupTabBar.behavior.spec.ts

@@ -177,6 +177,33 @@ describe("EditorGroupTabBar behavior", () => {
     host.remove();
   });
 
+  it("keeps a focus-return click on tab-strip whitespace out of native window dragging", async () => {
+    const store = useQueryStore();
+    const firstId = store.createTab("pg-1", "app", "Query 1", "query");
+    const secondId = store.createTab("pg-1", "app", "Query 2", "query");
+    const mainGroup = store.groups[0];
+    const activated: string[] = [];
+    const { app, host } = mountBar(mainGroup.id, [firstId, secondId], firstId, pinia, (tabId) => activated.push(tabId));
+    await settle();
+
+    const tabTail = host.querySelector<HTMLElement>('[data-tauri-drag-region="false"]');
+    expect(tabTail).not.toBeNull();
+
+    window.dispatchEvent(new Event("blur"));
+    window.dispatchEvent(new Event("focus"));
+    tabTail!.dispatchEvent(new MouseEvent("mousedown", { bubbles: true, button: 0, detail: 1 }));
+    tabTail!.click();
+    await settle();
+    expect(activated).toEqual([]);
+
+    tabPill(host, secondId).click();
+    await settle();
+    expect(activated).toEqual([secondId]);
+
+    app.unmount();
+    host.remove();
+  });
+
   it("closes a tab tooltip when the pointer leaves the tab", async () => {
     const store = useQueryStore();
     const tabId = store.createTab("pg-1", "app", "Plugin", "query");

apps/desktop/src/components/plugins/__tests__/PluginContributionsPanelBatch.spec.ts

@@ -22,6 +22,7 @@ const mocks = vi.hoisted(() => ({
   removePluginTrustedKey: vi.fn(),
   toast: vi.fn(),
   isTauriRuntime: vi.fn(),
+  openExternal: vi.fn(),
   refreshPluginWorkbenches: vi.fn(),
 }));
 
@@ -31,6 +32,7 @@ vi.mock("@/stores/connectionStore", () => ({ useConnectionStore: () => ({ connec
 vi.mock("@/stores/queryStore", () => ({ useQueryStore: () => ({}) }));
 vi.mock("@/lib/backend/tauriRuntime", () => ({ isTauriRuntime: mocks.isTauriRuntime }));
 vi.mock("@tauri-apps/api/event", () => ({ listen: vi.fn(async () => vi.fn()) }));
+vi.mock("@tauri-apps/plugin-shell", () => ({ open: mocks.openExternal }));
 vi.mock("vue-i18n", async () => {
   const { ref } = await import("vue");
   return { useI18n: () => ({ locale: ref("en"), t: (key: string, values = {}) => `${key}:${JSON.stringify(values)}` }) };
@@ -270,6 +272,33 @@ describe("PluginContributionsPanel batch source validation", () => {
   });
 });
 
+describe("PluginContributionsPanel external links", () => {
+  it("hands GitHub and homepage clicks to the desktop shell without selecting the card", async () => {
+    const linkedCatalog = catalog("first", ["linked"]);
+    Object.assign(linkedCatalog.catalog!.plugins[0], {
+      source: "https://github.com/dbxio/linked",
+      homepage: "https://dbxio.com/plugins/linked",
+    });
+    state.catalogResults = [linkedCatalog];
+    state.marketplaceViewMode = "grid";
+    mocks.isTauriRuntime.mockReturnValue(true);
+    await nextTick();
+
+    const sourceButton = host.querySelector<HTMLButtonElement>('[aria-label^="pluginPlatform.sourceRepository"]')!;
+    const homepageButton = host.querySelector<HTMLButtonElement>('[aria-label^="pluginPlatform.pluginHomepage"]')!;
+    const cardClick = vi.fn();
+    sourceButton.closest("article")!.addEventListener("click", cardClick);
+
+    sourceButton.click();
+    await vi.waitFor(() => expect(mocks.openExternal).toHaveBeenCalledTimes(1));
+    homepageButton.click();
+    await vi.waitFor(() => expect(mocks.openExternal).toHaveBeenCalledTimes(2));
+
+    expect(mocks.openExternal.mock.calls).toEqual([["https://github.com/dbxio/linked"], ["https://dbxio.com/plugins/linked"]]);
+    expect(cardClick).not.toHaveBeenCalled();
+  });
+});
+
 describe("PluginContributionsPanel update center synchronization", () => {
   it("notifies after a single marketplace update without duplicating per batch item", async () => {
     const listener = vi.fn();