feat(thinking-selector): add keyboard popup menu

test/quick-pane-ui.test.js

@@ -102,7 +102,7 @@ test("main Settings uses shared catalog selectors with provider derived from mod
   assert.match(persistence, /quickPane: current\.quickPane/);
 });
 
-test("Quick Pane keeps slash-containing model IDs atomic and renews catalog on focus", async () => {
+test("Quick Pane keeps slash-containing model IDs atomic and renews only on pane show", async () => {
   const [pane, catalog] = await Promise.all([
     readFile(
       new URL("../ui/src/quick-pane/QuickPane.tsx", import.meta.url),
@@ -114,8 +114,8 @@ test("Quick Pane keeps slash-containing model IDs atomic and renews catalog on f
   assert.match(pane, /provider: submittedModel\.provider/);
   assert.match(pane, /modelId: submittedModel\.modelId/);
   assert.doesNotMatch(pane, /selectedModel\.split/);
-  assert.match(pane, /onFocusChanged[\s\S]*?void renewChatOnFocus\(\)/);
+  assert.match(pane, /listen\("quick-pane-shown"[\s\S]*?void renewChatOnShow\(\)/);
-  assert.match(pane, /if \(!event\.payload\) return;/);
+  assert.match(pane, /onFocusChanged[\s\S]*?if \(event\.payload\) focusInput\(\);/);
   assert.match(pane, /const CHAT_RENEWAL_MS = 180_000/);
   assert.match(pane, /Date\.now\(\) - lastActivity > CHAT_RENEWAL_MS/);
   assert.match(pane, /event\.ctrlKey && event\.key\.toLowerCase\(\) === "n"/);

ui/src-tauri/src/lib.rs

@@ -258,6 +258,7 @@ fn toggle_quick_pane(app: &AppHandle) {
                 visibility.quick_pane_shown();
                 let _ = window.unminimize();
                 let _ = window.set_focus();
+                let _ = app.emit("quick-pane-shown", ());
             }
         }
     }

ui/src/App.test.tsx

@@ -190,10 +190,10 @@ describe("App command progress and errors", () => {
 		await user.click(
 			screen.getByRole("option", { name: /Claude.*anthropic\/claude\/sonnet/i }),
 		);
-		await user.selectOptions(
+		await user.click(
-			screen.getByRole("combobox", { name: "Default thinking" }),
+			screen.getByRole("button", { name: "Default thinking Medium" }),
-			"high",
 		);
+		await user.click(screen.getByRole("option", { name: "High" }));
 		await user.click(
 			screen.getByRole("button", { name: "Save Quick Pane settings" }),
 		);

ui/src/components/Dropdown.css.test.ts

@@ -0,0 +1,21 @@
+import { describe, expect, it } from "vitest";
+
+const fs = await import(["node", "fs"].join(":"));
+const modelCss = fs.readFileSync("src/components/ModelSelector.css", "utf8");
+const thinkingCss = fs.readFileSync("src/components/ThinkingSelector.css", "utf8");
+const quickPaneCss = fs.readFileSync("src/quick-pane/quick-pane.css", "utf8");
+
+describe("dropdown CSS", () => {
+  it("keeps regular model menu capped with scrolling results", () => {
+    expect(modelCss).toMatch(/\.model-menu\s*\{[\s\S]*max-height:\s*min\(420px, calc\(100vh - 80px\)\)/);
+    expect(modelCss).toMatch(/\.model-results\s*\{[\s\S]*overflow-y:\s*auto/);
+    expect(modelCss).toMatch(/\.model-option\[aria-selected="true"\]/);
+  });
+
+  it("caps compact menus to Quick Pane container below titlebar and toolbar", () => {
+    expect(quickPaneCss).toMatch(/\.quick-pane\s*\{[\s\S]*container-type:\s*size/);
+    expect(quickPaneCss).toMatch(/\.quick-pane \.model-menu\s*\{[\s\S]*max-height:\s*min\(350px, calc\(100cqh - 74px\)\)/);
+    expect(quickPaneCss).toMatch(/\.quick-pane \.model-menu\s*\{[\s\S]*width:\s*min\(400px, calc\(100cqw - 24px\)\)/);
+    expect(thinkingCss).toMatch(/\.thinking-selector-down \.thinking-menu\s*\{[\s\S]*top:\s*calc\(100% \+ 6px\)/);
+  });
+});

ui/src/components/ThinkingSelector.css

@@ -1,8 +1,9 @@
 .thinking-selector {
-  display: flex;
+  display: grid;
-  min-width: 0;
+  grid-template-columns: auto minmax(0, 1fr);
-  align-items: center;
   gap: 6px;
+  align-items: center;
+  min-width: 0;
   color: #bbb7b0;
   font-size: 10px;
   font-weight: 750;
@@ -10,37 +11,19 @@
   text-transform: uppercase;
 }
 
-.thinking-selector.thinking-selector select {
+.thinking-menu {
-  box-sizing: border-box;
+  grid-template-rows: minmax(0, 1fr);
-  width: 100%;
-  min-width: 0;
-  appearance: none;
-  color: #f2ece4;
-  color-scheme: dark;
-  padding: 5px 25px 5px 6px;
-  border: 1px solid #70522f;
-  border-radius: 4px;
-  background: #2c2a27
-    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='m1 1 5 5 5-5' fill='none' stroke='%23f0a347' stroke-linecap='round' stroke-linejoin='round' stroke-width='2'/%3E%3C/svg%3E")
-    no-repeat right 7px center;
 }
 
-.thinking-selector.thinking-selector select:hover {
+.thinking-selector-down .thinking-menu {
-  border-color: #d88735;
+  top: calc(100% + 6px);
-  background-color: #383129;
+  bottom: auto;
 }
 
-.thinking-selector.thinking-selector select:focus {
+.thinking-options {
-  border-color: #f0a347;
+  gap: 2px;
-  box-shadow: 0 0 0 2px rgba(240, 163, 71, 0.22);
 }
 
-.thinking-selector.thinking-selector select option {
+.thinking-option {
-  background: #2c2a27;
+  font-size: inherit;
-  color: #f2ece4;
-}
-
-.thinking-selector.thinking-selector select option:checked {
-  background: #4b3420;
-  color: #fff2df;
 }

ui/src/components/ThinkingSelector.test.tsx

@@ -1,40 +1,25 @@
-import { fireEvent, render, screen, within } from "@testing-library/react";
+import {
-import { expect, it, vi } from "vitest";
+  fireEvent,
+  render,
+  screen,
+  waitFor,
+  within,
+} from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
+import { describe, expect, it, vi } from "vitest";
 import { ThinkingSelector } from "./ThinkingSelector";
 
-it("uses selected model thinking capabilities and reconciles unavailable values", () => {
+const model = {
-        const onChange = vi.fn();
-        render(
-                <ThinkingSelector
-                        model={{
   reasoning: true,
   thinkingLevelMap: {
     minimal: null,
     low: null,
     medium: null,
     high: "high",
+    xhigh: "xhigh",
   },
-                        }}
+};
-                        value="medium"
+const fullModel = {
-                        onChange={onChange}
-                />,
-        );
-
-        const selector = screen.getByRole("combobox", { name: "Thinking" });
-        expect(selector).toHaveValue("off");
-        expect(
-                within(selector)
-                        .getAllByRole("option")
-                        .map((option) => option.textContent),
-        ).toEqual(["Off", "High"]);
-        fireEvent.change(selector, { target: { value: "high" } });
-        expect(onChange).toHaveBeenCalledWith("high");
-});
-
-it("keeps complete native labels available through XHigh", () => {
-        render(
-                <ThinkingSelector
-                        model={{
   reasoning: true,
   thinkingLevelMap: {
     minimal: "minimal",
@@ -43,22 +28,179 @@ it("keeps complete native labels available through XHigh", () => {
     high: "high",
     xhigh: "xhigh",
   },
-                        }}
+};
-                        value="medium"
+
-                        onChange={vi.fn()}
+describe("ThinkingSelector", () => {
+  it("uses reconciled model options and marks selected level", async () => {
+    const user = userEvent.setup();
+    render(
+      <ThinkingSelector model={model} value="medium" onChange={vi.fn()} />,
+    );
+
+    const trigger = screen.getByRole("button", { name: "Thinking Off" });
+    await user.click(trigger);
+    const menu = screen.getByRole("listbox", { name: "Thinking options" });
+    expect(
+      within(menu)
+        .getAllByRole("option")
+        .map((option) => option.textContent),
+    ).toEqual(["Off", "High", "XHigh"]);
+    expect(within(menu).getByRole("option", { name: "Off" })).toHaveAttribute(
+      "aria-selected",
+      "true",
+    );
+  });
+
+  it("selects an option, closes menu, and restores trigger focus", async () => {
+    const user = userEvent.setup();
+    const onChange = vi.fn();
+    render(<ThinkingSelector model={model} value="off" onChange={onChange} />);
+
+    const trigger = screen.getByRole("button", { name: "Thinking Off" });
+    await user.click(trigger);
+    await user.click(screen.getByRole("option", { name: "High" }));
+    expect(onChange).toHaveBeenCalledWith("high");
+    expect(
+      screen.queryByRole("listbox", { name: "Thinking options" }),
+    ).toBeNull();
+    await waitFor(() => expect(trigger).toHaveFocus());
+  });
+
+  it("roves options with arrows, Home, End, and Enter", async () => {
+    const user = userEvent.setup();
+    const onChange = vi.fn();
+    render(
+      <ThinkingSelector model={fullModel} value="medium" onChange={onChange} />,
+    );
+
+    const trigger = screen.getByRole("button", { name: "Thinking Medium" });
+    await user.click(trigger);
+    const menu = screen.getByRole("listbox", { name: "Thinking options" });
+    const medium = within(menu).getByRole("option", { name: "Medium" });
+    await waitFor(() => expect(medium).toHaveFocus());
+    expect(medium).toHaveAttribute("tabindex", "0");
+
+    await user.keyboard("{ArrowDown}");
+    await waitFor(() =>
+      expect(within(menu).getByRole("option", { name: "High" })).toHaveFocus(),
+    );
+    await user.keyboard("{ArrowUp}{Home}");
+    await waitFor(() =>
+      expect(within(menu).getByRole("option", { name: "Off" })).toHaveFocus(),
+    );
+    await user.keyboard("{End}");
+    await waitFor(() =>
+      expect(within(menu).getByRole("option", { name: "XHigh" })).toHaveFocus(),
+    );
+    await user.keyboard("{Enter}");
+
+    expect(onChange).toHaveBeenCalledWith("xhigh");
+    expect(
+      screen.queryByRole("listbox", { name: "Thinking options" }),
+    ).toBeNull();
+    await waitFor(() => expect(trigger).toHaveFocus());
+  });
+
+  it("selects active option with Space and cycles typeahead matches", async () => {
+    const user = userEvent.setup();
+    const onChange = vi.fn();
+    render(
+      <ThinkingSelector model={fullModel} value="off" onChange={onChange} />,
+    );
+
+    const trigger = screen.getByRole("button", { name: "Thinking Off" });
+    await user.click(trigger);
+    const menu = screen.getByRole("listbox", { name: "Thinking options" });
+    await waitFor(() =>
+      expect(within(menu).getByRole("option", { name: "Off" })).toHaveFocus(),
+    );
+    await user.keyboard("m");
+    await waitFor(() =>
+      expect(
+        within(menu).getByRole("option", { name: "Minimal" }),
+      ).toHaveFocus(),
+    );
+    await user.keyboard("m");
+    await waitFor(() =>
+      expect(
+        within(menu).getByRole("option", { name: "Medium" }),
+      ).toHaveFocus(),
+    );
+    await user.keyboard(" ");
+
+    expect(onChange).toHaveBeenCalledWith("medium");
+    expect(
+      screen.queryByRole("listbox", { name: "Thinking options" }),
+    ).toBeNull();
+    await waitFor(() => expect(trigger).toHaveFocus());
+  });
+
+  it("closes on Escape with focus restore and outside pointer without closing pane", async () => {
+    const user = userEvent.setup();
+    render(<ThinkingSelector model={model} value="high" onChange={vi.fn()} />);
+
+    const trigger = screen.getByRole("button", { name: "Thinking High" });
+    await user.click(trigger);
+    await waitFor(() =>
+      expect(screen.getByRole("option", { name: "High" })).toHaveFocus(),
+    );
+    await user.keyboard("{Escape}");
+    expect(
+      screen.queryByRole("listbox", { name: "Thinking options" }),
+    ).toBeNull();
+    await waitFor(() => expect(trigger).toHaveFocus());
+
+    await user.click(trigger);
+    fireEvent.pointerDown(document.body);
+    expect(
+      screen.queryByRole("listbox", { name: "Thinking options" }),
+    ).toBeNull();
+  });
+
+  it("closes an open menu when disabled without restoring focus", async () => {
+    const user = userEvent.setup();
+    const onChange = vi.fn();
+    const { rerender } = render(
+      <ThinkingSelector model={model} value="high" onChange={onChange} />,
+    );
+    const trigger = screen.getByRole("button", { name: "Thinking High" });
+
+    await user.click(trigger);
+    const option = screen.getByRole("option", { name: "High" });
+    await waitFor(() => expect(option).toHaveFocus());
+    rerender(
+      <ThinkingSelector
+        model={model}
+        value="high"
+        disabled
+        onChange={onChange}
       />,
     );
 
     expect(
-                within(screen.getByRole("combobox", { name: "Thinking" }))
+      screen.queryByRole("listbox", { name: "Thinking options" }),
-                        .getAllByRole("option")
+    ).toBeNull();
-                        .map((option) => option.textContent),
+    expect(trigger).toBeDisabled();
-        ).toEqual(["Off", "Minimal", "Low", "Medium", "High", "XHigh"]);
+    expect(trigger).not.toHaveFocus();
+    fireEvent.click(option);
+    option.focus();
+    fireEvent.keyDown(option, { key: "Enter" });
+    fireEvent.click(option, { detail: 0 });
+    expect(onChange).not.toHaveBeenCalled();
   });
 
-it("uses disabled native select semantics", () => {
+  it("supports disabled and downward trigger placement", () => {
-        render(<ThinkingSelector value="off" disabled onChange={vi.fn()} />);
+    const { container } = render(
+      <ThinkingSelector
+        value="off"
+        disabled
+        placement="down"
+        onChange={vi.fn()}
+      />,
+    );
+    expect(screen.getByRole("button", { name: "Thinking Off" })).toBeDisabled();
     expect(
-                screen.getByRole("combobox", { name: "Thinking" }),
+      container.querySelector(".thinking-selector-down"),
-        ).toBeDisabled();
+    ).toBeInTheDocument();
+  });
 });

ui/src/components/ThinkingSelector.tsx

@@ -1,5 +1,7 @@
+import { useEffect, useId, useRef, useState } from "react";
 import { reconcileThinkingLevel, thinkingLevelOptions } from "../model-catalog";
 import type { Model } from "../workspace/types";
+import "./ModelSelector.css";
 import "./ThinkingSelector.css";
 
 type ThinkingSelectorProps = {
@@ -7,6 +9,7 @@ type ThinkingSelectorProps = {
   label?: string;
   value: string;
   disabled?: boolean;
+  placement?: "up" | "down";
   className?: string;
   controlClassName?: string;
   onChange: (level: string) => void;
@@ -17,29 +20,221 @@ export function ThinkingSelector({
   label = "Thinking",
   value,
   disabled = false,
+  placement = "up",
   className,
   controlClassName,
   onChange,
 }: ThinkingSelectorProps) {
+  const [open, setOpen] = useState(false);
+  const [activeIndex, setActiveIndex] = useState(0);
+  const openRef = useRef(false);
+  const disabledRef = useRef(disabled);
+  const focusFrameRef = useRef<number | undefined>(undefined);
+  const typeaheadRef = useRef({ query: "", time: 0 });
+  const rootRef = useRef<HTMLDivElement>(null);
+  const triggerRef = useRef<HTMLButtonElement>(null);
+  const optionRefs = useRef<(HTMLButtonElement | null)[]>([]);
+  disabledRef.current = disabled;
+  const labelId = useId();
+  const valueId = useId();
+  const menuId = useId();
+  const options = thinkingLevelOptions(model);
   const selected = reconcileThinkingLevel(model, value);
-  const classes = ["thinking-selector", className].filter(Boolean).join(" ");
+  const selectedIndex = options.findIndex(
-
+    (option) => option.value === selected,
-  return (
+  );
-    <label className={classes}>
+  const selectedOption = options[selectedIndex];
-      <span>{label}</span>
+  const classes = [
-      <select
+    "thinking-selector",
-        className={controlClassName}
+    `thinking-selector-${placement}`,
-        aria-label={label}
+    className,
-        value={selected}
+  ]
-        disabled={disabled}
+    .filter(Boolean)
-        onChange={(event) => onChange(event.currentTarget.value)}
+    .join(" ");
-      >
+  const closeMenu = (restoreFocus = false) => {
-        {thinkingLevelOptions(model).map((option) => (
+    if (!openRef.current) return;
-          <option key={option.value} value={option.value}>
+    openRef.current = false;
-            {option.label}
+    setOpen(false);
-          </option>
+    typeaheadRef.current = { query: "", time: 0 };
-        ))}
+    if (restoreFocus) {
-      </select>
+      window.cancelAnimationFrame(focusFrameRef.current ?? 0);
-    </label>
+      focusFrameRef.current = window.requestAnimationFrame(() => {
+        focusFrameRef.current = undefined;
+        if (!disabledRef.current) triggerRef.current?.focus();
+      });
+    }
+  };
+  const openMenu = () => {
+    if (disabledRef.current || openRef.current) return;
+    setActiveIndex(selectedIndex >= 0 ? selectedIndex : 0);
+    openRef.current = true;
+    setOpen(true);
+  };
+  const selectOption = (index: number) => {
+    const option = options[index];
+    if (!option || disabledRef.current) return;
+    onChange(option.value);
+    closeMenu(true);
+  };
+  const moveActiveOption = (direction: 1 | -1) => {
+    setActiveIndex(
+      (index) => (index + direction + options.length) % options.length,
+    );
+  };
+  const typeahead = (key: string) => {
+    const now = Date.now();
+    const previous = typeaheadRef.current;
+    let query = now - previous.time < 500 ? `${previous.query}${key}` : key;
+    let matches = options
+      .map((option, index) => ({ option, index }))
+      .filter(({ option }) =>
+        option.label.toLocaleLowerCase().startsWith(query),
+      );
+    if (!matches.length && query.length > 1) {
+      query = key;
+      matches = options
+        .map((option, index) => ({ option, index }))
+        .filter(({ option }) =>
+          option.label.toLocaleLowerCase().startsWith(query),
+        );
+    }
+    typeaheadRef.current = { query, time: now };
+    if (!matches.length) return;
+    const next = matches.find(({ index }) => index > activeIndex) ?? matches[0];
+    setActiveIndex(next.index);
+  };
+
+  useEffect(() => {
+    if (!disabled) return;
+    window.cancelAnimationFrame(focusFrameRef.current ?? 0);
+    focusFrameRef.current = undefined;
+    closeMenu();
+  }, [disabled]);
+
+  useEffect(() => {
+    return () => {
+      openRef.current = false;
+      window.cancelAnimationFrame(focusFrameRef.current ?? 0);
+    };
+  }, []);
+
+  useEffect(() => {
+    if (!open) return;
+    const focusFrame = window.requestAnimationFrame(() =>
+      optionRefs.current[activeIndex]?.focus(),
+    );
+    return () => window.cancelAnimationFrame(focusFrame);
+  }, [activeIndex, open]);
+
+  useEffect(() => {
+    if (!open) return;
+    const closeOnEscape = (event: KeyboardEvent) => {
+      if (event.key !== "Escape") return;
+      event.preventDefault();
+      closeMenu(true);
+    };
+    const closeOutside = (event: PointerEvent) => {
+      if (!rootRef.current?.contains(event.target as Node)) closeMenu();
+    };
+    window.addEventListener("keydown", closeOnEscape);
+    window.addEventListener("pointerdown", closeOutside);
+    return () => {
+      window.removeEventListener("keydown", closeOnEscape);
+      window.removeEventListener("pointerdown", closeOutside);
+    };
+  }, [open]);
+
+  return (
+    <div className={classes}>
+      <span id={labelId}>{label}</span>
+      <div className="model-selector thinking-popup" ref={rootRef}>
+        <button
+          ref={triggerRef}
+          type="button"
+          className={["model-trigger", "thinking-trigger", controlClassName]
+            .filter(Boolean)
+            .join(" ")}
+          aria-expanded={open}
+          aria-haspopup="listbox"
+          aria-controls={open ? menuId : undefined}
+          aria-labelledby={`${labelId} ${valueId}`}
+          disabled={disabled}
+          onClick={() => {
+            if (disabledRef.current) return;
+            if (openRef.current) closeMenu();
+            else openMenu();
+          }}
+        >
+          <span id={valueId}>{selectedOption?.label ?? "Off"}</span>
+        </button>
+        {open && (
+          <div
+            id={menuId}
+            className="model-menu thinking-menu"
+            role="listbox"
+            aria-label={`${label} options`}
+          >
+            <div className="model-results thinking-options">
+              {options.map((option, index) => (
+                <button
+                  ref={(element) => {
+                    optionRefs.current[index] = element;
+                  }}
+                  type="button"
+                  className="model-option thinking-option"
+                  role="option"
+                  aria-selected={option.value === selected}
+                  tabIndex={index === activeIndex ? 0 : -1}
+                  value={option.value}
+                  key={option.value}
+                  onClick={() => selectOption(index)}
+                  onKeyDown={(event) => {
+                    switch (event.key) {
+                      case "ArrowDown":
+                        event.preventDefault();
+                        moveActiveOption(1);
+                        break;
+                      case "ArrowUp":
+                        event.preventDefault();
+                        moveActiveOption(-1);
+                        break;
+                      case "Home":
+                        event.preventDefault();
+                        setActiveIndex(0);
+                        break;
+                      case "End":
+                        event.preventDefault();
+                        setActiveIndex(options.length - 1);
+                        break;
+                      case "Enter":
+                      case " ":
+                        event.preventDefault();
+                        selectOption(activeIndex);
+                        break;
+                      case "Escape":
+                        event.preventDefault();
+                        closeMenu(true);
+                        break;
+                      default:
+                        if (
+                          event.key.length === 1 &&
+                          !event.altKey &&
+                          !event.ctrlKey &&
+                          !event.metaKey
+                        ) {
+                          event.preventDefault();
+                          typeahead(event.key.toLocaleLowerCase());
+                        }
+                    }
+                  }}
+                >
+                  {option.label}
+                </button>
+              ))}
+            </div>
+          </div>
+        )}
+      </div>
+    </div>
   );
 }

ui/src/components/components.test.tsx

@@ -178,7 +178,7 @@ describe("multi-session navigation", () => {
 		await user.click(screen.getByText("Tool result · read"));
 		expect(details).toHaveAttribute("open");
 	});
-	it("uses omitted-reasoning state model metadata when catalog lacks current model", () => {
+	it("uses omitted-reasoning state model metadata when catalog lacks current model", async () => {
 		const runtime = runtimeView(summary("thinking"));
 		runtime.state = {
 			model: {
@@ -199,12 +199,12 @@ describe("multi-session navigation", () => {
 				onCommand={vi.fn()}
 			/>,
 		);
+		const user = userEvent.setup();
+		await user.click(screen.getByRole("button", { name: "Thinking Medium" }));
 		expect(
-			Array.from(
 			screen
-					.getByRole("combobox", { name: "Thinking" })
+				.getAllByRole("option")
-					.querySelectorAll("option"),
+				.map((option) => option.getAttribute("value")),
-			).map((option) => option.value),
 		).toEqual(["off", "minimal", "low", "medium", "xhigh"]);
 	});
 	it("packs session status between model controls and the composer", () => {

ui/src/quick-pane/QuickPane.test.tsx

@@ -24,6 +24,9 @@ const mocks = vi.hoisted(() => ({
   focusHandler: undefined as
     | ((event: { payload: boolean }) => void)
     | undefined,
+  shownHandler: undefined as
+    | ((event: { payload: undefined }) => void)
+    | undefined,
 }));
 
 vi.mock("@tauri-apps/api/core", () => ({ invoke: mocks.invoke }));
@@ -218,8 +221,14 @@ describe("QuickPane", () => {
     vi.restoreAllMocks();
     vi.clearAllMocks();
     mocks.focusHandler = undefined;
+    mocks.shownHandler = undefined;
     mocks.startDragging.mockResolvedValue(undefined);
-    mocks.listen.mockResolvedValue(vi.fn());
+    mocks.listen.mockImplementation(
+      (event: string, handler: (event: { payload: undefined }) => void) => {
+        if (event === "quick-pane-shown") mocks.shownHandler = handler;
+        return Promise.resolve(vi.fn());
+      },
+    );
     mocks.onFocusChanged.mockImplementation((handler) => {
       mocks.focusHandler = handler;
       return Promise.resolve(vi.fn());
@@ -245,16 +254,12 @@ describe("QuickPane", () => {
     bridgeMock([defaultModels]);
     const { container } = render(<QuickPane />);
     const model = await preparedTrigger();
-    const thinking = screen.getByRole("combobox", { name: "Thinking" });
+    const thinking = screen.getByRole("button", { name: "Thinking Medium" });
     const close = screen.getByRole("button", { name: "Close Quick Pane" });
 
     for (const control of [model, thinking, close])
       expect(control).toHaveClass("quick-pane-toolbar-control");
-    expect(
+    expect(thinking).toHaveTextContent("Medium");
-      within(thinking)
-        .getAllByRole("option")
-        .map((option) => option.textContent),
-    ).toEqual(["Off", "Minimal", "Low", "Medium", "High"]);
     expect(
       within(container.querySelector(".quick-pane-toolbar")!).queryByRole(
         "button",
@@ -270,7 +275,7 @@ describe("QuickPane", () => {
     const toolbar = container.querySelector(".quick-pane-toolbar")!;
     const controls = [
       await preparedTrigger(),
-      screen.getByRole("combobox", { name: "Thinking" }),
+      screen.getByRole("button", { name: "Thinking Medium" }),
       screen.getByRole("button", { name: "Close Quick Pane" }),
     ];
 
@@ -291,7 +296,9 @@ describe("QuickPane", () => {
     fireEvent.pointerDown(
       screen.getByRole("button", { name: "Close Quick Pane" }),
     );
-    fireEvent.pointerDown(screen.getByRole("combobox", { name: "Thinking" }));
+    fireEvent.pointerDown(
+      screen.getByRole("button", { name: "Thinking Medium" }),
+    );
     expect(mocks.startDragging).toHaveBeenCalledTimes(1);
   });
 
@@ -442,9 +449,9 @@ describe("QuickPane", () => {
     });
     render(<QuickPane />);
     await preparedTrigger();
-    expect(screen.getByRole("combobox", { name: "Thinking" })).toHaveValue(
+    expect(
-      "high",
+      screen.getByRole("button", { name: "Thinking High" }),
-    );
+    ).toBeInTheDocument();
     await ask("Inspect");
     await waitFor(() =>
       expect(mocks.invoke).toHaveBeenCalledWith("set_thinking_level", {
@@ -474,14 +481,14 @@ describe("QuickPane", () => {
     );
     render(<QuickPane />);
     await preparedTrigger();
-    const thinking = screen.getByRole("combobox", { name: "Thinking" });
+    const thinking = screen.getByRole("button", { name: "Thinking Off" });
+    await userEvent.click(thinking);
     expect(
-      within(thinking)
+      within(screen.getByRole("listbox", { name: "Thinking options" }))
         .getAllByRole("option")
         .map((option) => option.textContent),
     ).toEqual(["Off", "High"]);
-    expect(thinking).toHaveValue("off");
+    await userEvent.click(screen.getByRole("option", { name: "High" }));
-    await userEvent.selectOptions(thinking, "high");
     await ask("Inspect");
     await waitFor(() =>
       expect(mocks.invoke).toHaveBeenCalledWith("set_thinking_level", {
@@ -491,6 +498,34 @@ describe("QuickPane", () => {
     );
   });
 
+  it("closes thinking menu while Ctrl+N replaces chat", async () => {
+    const closing = deferred<void>();
+    const tracker = bridgeMock([defaultModels, defaultModels]);
+    const baseImplementation = mocks.invoke.getMockImplementation();
+    mocks.invoke.mockImplementation(
+      (command: string, payload?: Record<string, unknown>) => {
+        if (command === "close_quick_runtime") return closing.promise;
+        return baseImplementation?.(command, payload);
+      },
+    );
+    render(<QuickPane />);
+    await preparedTrigger();
+    const thinking = screen.getByRole("button", { name: "Thinking Medium" });
+    await userEvent.click(thinking);
+    expect(
+      screen.getByRole("listbox", { name: "Thinking options" }),
+    ).toBeInTheDocument();
+
+    fireEvent.keyDown(window, { key: "n", ctrlKey: true, cancelable: true });
+    await waitFor(() => expect(thinking).toBeDisabled());
+    expect(
+      screen.queryByRole("listbox", { name: "Thinking options" }),
+    ).toBeNull();
+
+    await act(async () => closing.resolve());
+    await waitFor(() => expect(tracker.runtimeCount()).toBe(2));
+  });
+
   it("keeps Abort active-only and Renew idle after an exchange", async () => {
     let streaming = true;
     const tracker = bridgeMock([defaultModels, defaultModels], () =>
@@ -1422,7 +1457,13 @@ describe("QuickPane fresh runtime catalog", () => {
   beforeEach(() => {
     vi.restoreAllMocks();
     vi.clearAllMocks();
-    mocks.listen.mockResolvedValue(vi.fn());
+    mocks.shownHandler = undefined;
+    mocks.listen.mockImplementation(
+      (event: string, handler: (event: { payload: undefined }) => void) => {
+        if (event === "quick-pane-shown") mocks.shownHandler = handler;
+        return Promise.resolve(vi.fn());
+      },
+    );
     mocks.onFocusChanged.mockImplementation((handler) => {
       mocks.focusHandler = handler;
       return Promise.resolve(vi.fn());
@@ -1488,7 +1529,7 @@ describe("QuickPane fresh runtime catalog", () => {
     );
     await act(async () => mocks.focusHandler?.({ payload: false }));
     now += 180_000;
-    await act(async () => mocks.focusHandler?.({ payload: true }));
+    await act(async () => mocks.shownHandler?.({ payload: undefined }));
 
     expect(tracker.runtimeCount()).toBe(1);
     expect(trigger).toBeInTheDocument();
@@ -1564,7 +1605,7 @@ describe("QuickPane fresh runtime catalog", () => {
       ),
     );
 
-    await act(async () => mocks.focusHandler?.({ payload: true }));
+    await act(async () => mocks.shownHandler?.({ payload: undefined }));
     expect(await preparedTrigger()).toBeInTheDocument();
     await act(async () =>
       firstSnapshot.resolve(runtimeSnapshot(defaultModels)),
@@ -1575,7 +1616,7 @@ describe("QuickPane fresh runtime catalog", () => {
     expect(activeRuntimeIds).toEqual(new Set(["runtime-1", "runtime-2"]));
 
     now += 180_001;
-    await act(async () => mocks.focusHandler?.({ payload: true }));
+    await act(async () => mocks.shownHandler?.({ payload: undefined }));
     await waitFor(() => expect(runtimeCount).toBe(3));
     expect(firstCloseAttempts).toBe(2);
     expect(activeRuntimeIds).toEqual(new Set(["runtime-3"]));
@@ -1660,7 +1701,7 @@ describe("QuickPane fresh runtime catalog", () => {
     expect(screen.queryByText("Partial")).toBeNull();
   });
 
-  it("renews a stale idle chat when reopened after three minutes", async () => {
+  it("renews stale idle chat only after Quick Pane show, never focus while open", async () => {
     let now = 1_000_000;
     vi.spyOn(Date, "now").mockImplementation(() => now);
     const freshModels: Model[] = [
@@ -1682,12 +1723,21 @@ describe("QuickPane fresh runtime catalog", () => {
       ).not.toHaveAttribute("readonly"),
     );
 
+    now += 180_001;
+    fireEvent.change(screen.getByRole("textbox", { name: "Request" }), {
+      target: { value: "Still open" },
+    });
+    await act(async () => mocks.focusHandler?.({ payload: false }));
+    await act(async () => mocks.focusHandler?.({ payload: true }));
+    expect(tracker.runtimeCount()).toBe(1);
+    expect(mocks.invoke).not.toHaveBeenCalledWith("close_quick_runtime", {
+      runtimeId: "runtime-1",
+    });
+
     await userEvent.click(
       screen.getByRole("button", { name: "Close Quick Pane" }),
     );
-    await act(async () => mocks.focusHandler?.({ payload: false }));
+    await act(async () => mocks.shownHandler?.({ payload: undefined }));
-    now += 180_001;
-    await act(async () => mocks.focusHandler?.({ payload: true }));
 
     await waitFor(() => expect(tracker.runtimeCount()).toBe(2));
     expect(mocks.invoke).toHaveBeenCalledWith("close_quick_runtime", {

ui/src/quick-pane/QuickPane.tsx

@@ -706,7 +706,7 @@ export default function QuickPane() {
     [clearChatState, clearRuntimeIfCurrent, closeRuntime, prepareRuntime],
   );
 
-  const renewChatOnFocus = useCallback(async () => {
+  const renewChatOnShow = useCallback(async () => {
     if (requestActiveRef.current || submissionStartingRef.current) return;
     if (!runtimeRef.current) {
       clearChatState(false);
@@ -832,6 +832,10 @@ export default function QuickPane() {
           void prepareRuntime(configuredModel);
       },
     );
+    const paneShownListener = listen("quick-pane-shown", () => {
+      focusInput();
+      void renewChatOnShow();
+    });
     const onKeyDown = (event: KeyboardEvent) => {
       if (event.key === "Tab") inputFocusIntentRef.current = "keyboard";
       if (catalogOverlayActive) {
@@ -856,20 +860,19 @@ export default function QuickPane() {
     };
     window.addEventListener("keydown", onKeyDown);
     const focusListener = paneWindow.onFocusChanged((event) => {
-      if (!event.payload) return;
+      if (event.payload) focusInput();
-      focusInput();
-      void renewChatOnFocus();
     });
     return () => {
       window.removeEventListener("keydown", onKeyDown);
       void settingsListener.then((unlisten) => unlisten());
+      void paneShownListener.then((unlisten) => unlisten());
       void focusListener.then((unlisten) => unlisten());
     };
   }, [
     catalogOverlayActive,
     dismissPane,
     prepareRuntime,
-    renewChatOnFocus,
+    renewChatOnShow,
     replaceChat,
   ]);
 
@@ -1138,7 +1141,7 @@ export default function QuickPane() {
       <div
         className="quick-pane-titlebar"
         onPointerDown={(event) => {
-          if (event.button !== 0) return;
+          if (event.button && event.button !== 0) return;
           void getCurrentWindow()
             .startDragging()
             .catch(() => undefined);
@@ -1176,6 +1179,7 @@ export default function QuickPane() {
           <ThinkingSelector
             className="quick-pane-thinking"
             controlClassName="quick-pane-toolbar-control"
+            placement="down"
             model={selectedCatalogModel}
             value={thinkingLevel}
             disabled={catalogOverlayActive || runActive || chatReplacing}

ui/src/quick-pane/quick-pane.css

@@ -19,6 +19,7 @@ body {
 
 .quick-pane {
   position: relative;
+  container-type: size;
   box-sizing: border-box;
   display: flex;
   flex-direction: column;
@@ -145,8 +146,8 @@ body {
 }
 
 .quick-pane .model-menu {
-  width: min(400px, calc(100vw - 24px));
+  width: min(400px, calc(100cqw - 24px));
-  max-height: min(350px, calc(100vh - 56px));
+  max-height: min(350px, calc(100cqh - 74px));
   color: #e6e3df;
   font-size: 11px;
   font-weight: 500;
@@ -185,8 +186,7 @@ body {
   display: none;
 }
 
-.quick-pane button,
+.quick-pane button {
-.quick-pane select {
   box-sizing: border-box;
   min-width: 0;
   border: 0;
@@ -195,15 +195,6 @@ body {
   font: inherit;
 }
 
-.quick-pane select {
-  width: 100%;
-  overflow: hidden;
-  color: #e6e3df;
-  background: #353535;
-  font-size: 11px;
-  text-overflow: ellipsis;
-}
-
 .quick-pane button {
   flex: 0 0 auto;
   color: #25180b;
@@ -216,24 +207,19 @@ body {
   background: #ffc170;
 }
 
-.quick-pane button:disabled,
+.quick-pane button:disabled {
-.quick-pane select:disabled {
   opacity: 0.58;
   cursor: wait;
 }
 
-.quick-pane button:focus-visible,
+.quick-pane button:focus-visible {
-.quick-pane select:focus-visible {
   outline: 3px solid #f0a347;
   outline-offset: 2px;
 }
 
 .quick-pane button.quick-pane-toolbar-control,
-.quick-pane select.quick-pane-toolbar-control,
 .quick-pane .model-trigger.quick-pane-toolbar-control,
-.quick-pane
+.quick-pane .thinking-trigger.quick-pane-toolbar-control {
-  .thinking-selector.thinking-selector
-  select.quick-pane-toolbar-control {
   box-sizing: border-box;
   height: 27px;
   min-width: 48px;
@@ -251,9 +237,7 @@ body {
 }
 
 .quick-pane .model-trigger.quick-pane-toolbar-control,
-.quick-pane
+.quick-pane .thinking-trigger.quick-pane-toolbar-control {
-  .thinking-selector.thinking-selector
-  select.quick-pane-toolbar-control {
   appearance: auto;
 }
 
@@ -659,7 +643,7 @@ body {
     gap: 2px;
   }
 
-  .quick-pane select {
+  .quick-pane .thinking-trigger {
     padding-inline: 5px;
     font-size: 10px;
   }

ui/src/thinking-parity.test.tsx

@@ -1,4 +1,5 @@
-import { render, screen, waitFor, within } from "@testing-library/react";
+import { render, screen, within } from "@testing-library/react";
+import userEvent from "@testing-library/user-event";
 import { beforeEach, describe, expect, it, vi } from "vitest";
 import { ConversationWorkspace } from "./components/ConversationWorkspace";
 import QuickPane from "./quick-pane/QuickPane";
@@ -40,7 +41,7 @@ const settings: UiState = {
   },
 };
 
-function options(selector: HTMLSelectElement) {
+function options(selector: HTMLElement) {
   return within(selector)
     .getAllByRole("option")
     .map((option) => option.getAttribute("value"));
@@ -127,15 +128,18 @@ describe("thinking selector parity", () => {
     "matches Pi %s semantics in Conversation Workspace and Quick Pane",
     async (_name, metadata, expected) => {
       renderSurfaces({ provider: "provider", id: "model", ...metadata });
-      await waitFor(() =>
+      const user = userEvent.setup();
-        expect(
+      const triggers = await screen.findAllByRole("button", {
-          screen.getAllByRole("combobox", { name: "Thinking" }),
+        name: /Thinking /,
-        ).toHaveLength(2),
+      });
+      expect(triggers).toHaveLength(2);
+      for (const trigger of triggers) {
+        await user.click(trigger);
+        expect(options(screen.getByRole("listbox", { name: "Thinking options" }))).toEqual(
+          expected,
         );
-      for (const selector of screen.getAllByRole("combobox", {
+        await user.click(trigger);
-        name: "Thinking",
+      }
-      }) as HTMLSelectElement[])
-        expect(options(selector)).toEqual(expected);
     },
   );
 });