fix(control-ui): keep mobile chat settings in Lit state

Move the mobile chat settings dropdown open state into Lit-owned app state.

- Render the dropdown open class and ARIA disclosure attributes from state.
- Add Escape, outside pointer, tab-change cleanup, and focus restoration.
- Cover closed/open render state and mounted app dismissal flows with browser tests.

Validation:
- pnpm test ui/src/ui/app-render.helpers.browser.test.ts ui/src/ui/navigation.browser.test.ts
- pnpm exec oxfmt --check --threads=1 ui/src/ui/app.ts ui/src/ui/app-view-state.ts ui/src/ui/app-render.helpers.ts ui/src/ui/app-render.helpers.browser.test.ts ui/src/ui/navigation.browser.test.ts
- node scripts/run-oxlint.mjs --tsconfig tsconfig.oxlint.core.json ui/src/ui/app.ts ui/src/ui/app-view-state.ts ui/src/ui/app-render.helpers.ts ui/src/ui/app-render.helpers.browser.test.ts ui/src/ui/navigation.browser.test.ts

ui/src/ui/app-render.helpers.browser.test.ts

@@ -1,5 +1,5 @@
 import { render } from "lit";
-import { describe, expect, it } from "vitest";
+import { describe, expect, it, vi } from "vitest";
 import { t } from "../i18n/index.ts";
 import { renderChatControls, renderChatMobileToggle } from "./app-render.helpers.ts";
 import type { AppViewState } from "./app-view-state.ts";
@@ -43,6 +43,8 @@ function createState(overrides: Partial<AppViewState> = {}) {
       chatShowToolCalls: true,
     },
     applySettings: () => undefined,
+    chatMobileControlsOpen: false,
+    setChatMobileControlsOpen: () => undefined,
     ...overrides,
   } as unknown as AppViewState;
 }
@@ -104,4 +106,45 @@ describe("chat header controls (browser)", () => {
 
     expect(state.sessionsHideCron).toBe(false);
   });
+
+  it("renders the mobile dropdown from state instead of mutating DOM classes", async () => {
+    const setChatMobileControlsOpen = vi.fn();
+    const state = createState({
+      chatMobileControlsOpen: false,
+      setChatMobileControlsOpen,
+    });
+    const container = document.createElement("div");
+    render(renderChatMobileToggle(state), container);
+    await Promise.resolve();
+
+    const toggle = container.querySelector<HTMLButtonElement>(".chat-controls-mobile-toggle");
+    const dropdown = container.querySelector<HTMLElement>(".chat-controls-dropdown");
+    expect(toggle).not.toBeNull();
+    expect(dropdown).not.toBeNull();
+    expect(toggle?.getAttribute("aria-expanded")).toBe("false");
+    expect(toggle?.getAttribute("aria-controls")).toBe("chat-mobile-controls-dropdown");
+    expect(dropdown?.id).toBe("chat-mobile-controls-dropdown");
+    expect(dropdown?.classList.contains("open")).toBe(false);
+
+    toggle?.click();
+
+    expect(setChatMobileControlsOpen).toHaveBeenCalledWith(true, { trigger: toggle });
+    expect(dropdown?.classList.contains("open")).toBe(false);
+
+    render(
+      renderChatMobileToggle(
+        createState({
+          chatMobileControlsOpen: true,
+          setChatMobileControlsOpen,
+        }),
+      ),
+      container,
+    );
+    await Promise.resolve();
+
+    const openToggle = container.querySelector<HTMLButtonElement>(".chat-controls-mobile-toggle");
+    const openDropdown = container.querySelector<HTMLElement>(".chat-controls-dropdown");
+    expect(openToggle?.getAttribute("aria-expanded")).toBe("true");
+    expect(openDropdown?.classList.contains("open")).toBe(true);
+  });
 });

ui/src/ui/app-render.helpers.ts

@@ -381,6 +381,8 @@ export function renderChatControls(state: AppViewState) {
  */
 export function renderChatMobileToggle(state: AppViewState) {
   const sessionGroups = resolveSessionOptionGroups(state, state.sessionKey, state.sessionsResult);
+  const controlsDropdownId = "chat-mobile-controls-dropdown";
+  const mobileControlsOpen = state.chatMobileControlsOpen;
   const disableThinkingToggle = state.onboarding;
   const disableFocusToggle = state.onboarding;
   const showThinking = state.onboarding ? false : state.settings.chatShowThinking;
@@ -431,21 +433,14 @@ export function renderChatMobileToggle(state: AppViewState) {
         class="btn btn--sm btn--icon chat-controls-mobile-toggle"
         @click=${(e: Event) => {
           e.stopPropagation();
-          const btn = e.currentTarget as HTMLElement;
+          state.setChatMobileControlsOpen(!mobileControlsOpen, {
-          const dropdown = btn.nextElementSibling as HTMLElement;
+            trigger: e.currentTarget as HTMLElement,
-          if (dropdown) {
+          });
-            const isOpen = dropdown.classList.toggle("open");
-            if (isOpen) {
-              const close = () => {
-                dropdown.classList.remove("open");
-                document.removeEventListener("click", close);
-              };
-              setTimeout(() => document.addEventListener("click", close, { once: true }), 0);
-            }
-          }
         }}
         title="Chat settings"
         aria-label="Chat settings"
+        aria-expanded=${mobileControlsOpen}
+        aria-controls=${controlsDropdownId}
       >
         <svg
           width="18"
@@ -464,7 +459,8 @@ export function renderChatMobileToggle(state: AppViewState) {
         </svg>
       </button>
       <div
-        class="chat-controls-dropdown"
+        id=${controlsDropdownId}
+        class="chat-controls-dropdown ${mobileControlsOpen ? "open" : ""}"
         @click=${(e: Event) => {
           e.stopPropagation();
         }}
@@ -553,13 +549,11 @@ export function renderChatMobileToggle(state: AppViewState) {
                 state.sessionsHideCron = !hideCron;
               }}
               aria-pressed=${hideCron}
-              title=${
+              title=${hideCron
-                hideCron
+                ? hiddenCronCount > 0
-                  ? hiddenCronCount > 0
+                  ? t("chat.showCronSessionsHidden", { count: String(hiddenCronCount) })
-                    ? t("chat.showCronSessionsHidden", { count: String(hiddenCronCount) })
+                  : t("chat.showCronSessions")
-                    : t("chat.showCronSessions")
+                : t("chat.hideCronSessions")}
-                  : t("chat.hideCronSessions")
-              }
             >
               ${renderCronFilterIcon(hiddenCronCount)}
             </button>

ui/src/ui/app-view-state.ts

@@ -119,6 +119,7 @@ export type AppViewState = {
   realtimeTalkDetail: string | null;
   realtimeTalkTranscript: string | null;
   chatManualRefreshInFlight: boolean;
+  chatMobileControlsOpen: boolean;
   nodesLoading: boolean;
   nodes: Array<Record<string, unknown>>;
   chatNewMessagesBelow: boolean;
@@ -405,6 +406,10 @@ export type AppViewState = {
     refreshSessionsAfterChat: Set<string>;
     connect: () => void;
     setTab: (tab: Tab) => void;
+    setChatMobileControlsOpen: (
+      open: boolean,
+      options?: { trigger?: HTMLElement | null; restoreFocus?: boolean },
+    ) => void;
     setTheme: (theme: ThemeName, context?: ThemeTransitionContext) => void;
     setThemeMode: (mode: ThemeMode, context?: ThemeTransitionContext) => void;
     setCustomThemeImportUrl: (next: string) => void;

ui/src/ui/app.ts

@@ -220,6 +220,8 @@ export class OpenClawApp extends LitElement {
   @state() realtimeTalkTranscript: string | null = null;
   private realtimeTalkSession: RealtimeTalkSession | null = null;
   @state() chatManualRefreshInFlight = false;
+  @state() chatMobileControlsOpen = false;
+  private chatMobileControlsTrigger: HTMLElement | null = null;
   @state() navDrawerOpen = false;
 
   onSlashAction?: (action: string) => void;
@@ -578,6 +580,23 @@ export class OpenClawApp extends LitElement {
       }
     }
   };
+  private chatMobileControlsKeydownHandler = (e: KeyboardEvent) => {
+    if (e.key !== "Escape" || !this.chatMobileControlsOpen) {
+      return;
+    }
+    e.preventDefault();
+    this.setChatMobileControlsOpen(false, { restoreFocus: true });
+  };
+  private chatMobileControlsPointerdownHandler = (e: Event) => {
+    if (!this.chatMobileControlsOpen) {
+      return;
+    }
+    const wrapper = this.querySelector(".chat-mobile-controls-wrapper");
+    if (wrapper && e.composedPath().includes(wrapper)) {
+      return;
+    }
+    this.setChatMobileControlsOpen(false);
+  };
 
   createRenderRoot() {
     return this;
@@ -603,6 +622,8 @@ export class OpenClawApp extends LitElement {
       }
     };
     document.addEventListener("keydown", this.globalKeydownHandler);
+    document.addEventListener("keydown", this.chatMobileControlsKeydownHandler);
+    document.addEventListener("pointerdown", this.chatMobileControlsPointerdownHandler);
     handleConnected(this as unknown as Parameters<typeof handleConnected>[0]);
     void this.initWebPushState();
   }
@@ -613,12 +634,19 @@ export class OpenClawApp extends LitElement {
 
   disconnectedCallback() {
     document.removeEventListener("keydown", this.globalKeydownHandler);
+    document.removeEventListener("keydown", this.chatMobileControlsKeydownHandler);
+    document.removeEventListener("pointerdown", this.chatMobileControlsPointerdownHandler);
+    this.chatMobileControlsTrigger = null;
     handleDisconnected(this as unknown as Parameters<typeof handleDisconnected>[0]);
     super.disconnectedCallback();
   }
 
   protected updated(changed: Map<PropertyKey, unknown>) {
     handleUpdated(this as unknown as Parameters<typeof handleUpdated>[0], changed);
+    // Some render callbacks assign tab directly while preparing nested panel state.
+    if (changed.has("tab") && this.tab !== "chat" && this.chatMobileControlsOpen) {
+      this.setChatMobileControlsOpen(false);
+    }
     if (!changed.has("sessionKey") || this.agentsPanel !== "tools") {
       return;
     }
@@ -693,9 +721,35 @@ export class OpenClawApp extends LitElement {
 
   setTab(next: Tab) {
     setTabInternal(this as unknown as Parameters<typeof setTabInternal>[0], next);
+    if (next !== "chat") {
+      this.setChatMobileControlsOpen(false);
+    }
     this.navDrawerOpen = false;
   }
 
+  setChatMobileControlsOpen(
+    open: boolean,
+    options?: { trigger?: HTMLElement | null; restoreFocus?: boolean },
+  ) {
+    if (open) {
+      this.chatMobileControlsTrigger = options?.trigger ?? this.chatMobileControlsTrigger;
+      this.chatMobileControlsOpen = true;
+      return;
+    }
+
+    const focusTarget = options?.restoreFocus ? this.chatMobileControlsTrigger : null;
+    this.chatMobileControlsOpen = false;
+    this.chatMobileControlsTrigger = null;
+    if (!(focusTarget instanceof HTMLElement) || !focusTarget.isConnected) {
+      return;
+    }
+    requestAnimationFrame(() => {
+      if (focusTarget.isConnected) {
+        focusTarget.focus();
+      }
+    });
+  }
+
   setTheme(next: ThemeName, context?: Parameters<typeof setThemeInternal>[2]) {
     setThemeInternal(this as unknown as Parameters<typeof setThemeInternal>[0], next, context);
     this.themeOrder = this.buildThemeOrder(next);

ui/src/ui/navigation.browser.test.ts

@@ -447,6 +447,60 @@ describe("control UI routing", () => {
     expect(header.querySelector(".nav-collapse-toggle")).not.toBeNull();
   });
 
+  it("closes mobile chat controls on Escape, outside pointerdown, and tab changes", async () => {
+    const app = mountApp("/chat");
+    await app.updateComplete;
+
+    const toggle = app.querySelector<HTMLButtonElement>(".chat-controls-mobile-toggle");
+    const dropdown = app.querySelector<HTMLElement>(".chat-controls-dropdown");
+    expect(toggle).not.toBeNull();
+    expect(dropdown).not.toBeNull();
+    if (!toggle || !dropdown) {
+      return;
+    }
+
+    toggle.focus();
+    toggle.click();
+    await app.updateComplete;
+
+    expect(app.chatMobileControlsOpen).toBe(true);
+    expect(toggle.getAttribute("aria-expanded")).toBe("true");
+    expect(dropdown.classList.contains("open")).toBe(true);
+
+    document.dispatchEvent(new KeyboardEvent("keydown", { key: "Escape", bubbles: true }));
+    await app.updateComplete;
+    await nextFrame();
+
+    expect(app.chatMobileControlsOpen).toBe(false);
+    expect(toggle.getAttribute("aria-expanded")).toBe("false");
+    expect(dropdown.classList.contains("open")).toBe(false);
+    expect(document.activeElement).toBe(toggle);
+
+    toggle.click();
+    await app.updateComplete;
+    app.requestUpdate();
+    await app.updateComplete;
+
+    const openDropdown = app.querySelector<HTMLElement>(".chat-controls-dropdown");
+    expect(app.chatMobileControlsOpen).toBe(true);
+    expect(openDropdown?.classList.contains("open")).toBe(true);
+
+    document.body.dispatchEvent(new MouseEvent("pointerdown", { bubbles: true, composed: true }));
+    await app.updateComplete;
+
+    const closedDropdown = app.querySelector<HTMLElement>(".chat-controls-dropdown");
+    expect(app.chatMobileControlsOpen).toBe(false);
+    expect(closedDropdown?.classList.contains("open")).toBe(false);
+
+    app.querySelector<HTMLButtonElement>(".chat-controls-mobile-toggle")?.click();
+    await app.updateComplete;
+    expect(app.chatMobileControlsOpen).toBe(true);
+
+    app.setTab("channels");
+    await app.updateComplete;
+    expect(app.chatMobileControlsOpen).toBe(false);
+  });
+
   it("preserves session navigation and keeps focus mode scoped to chat", async () => {
     const app = mountApp("/sessions?session=agent:main:subagent:task-123");
     await app.updateComplete;