feat(web): add configurable composer focus shortcut

apps/web/src/components/ChatView.tsx

@@ -6091,6 +6091,13 @@ export default function ChatView(props: ChatViewProps) {
       });
       if (!command) return;
 
+      if (command === "composer.focus") {
+        event.preventDefault();
+        event.stopPropagation();
+        focusComposer();
+        return;
+      }
+
       if (command === "thread.copyReference") {
         event.preventDefault();
         event.stopPropagation();
@@ -6292,6 +6299,7 @@ export default function ChatView(props: ChatViewProps) {
     supportsSettlement,
     confirmAndUnpinThread,
     copyActiveThreadReference,
+    focusComposer,
     previewPanelOpen,
     toggleRightPanel,
     toggleRightPanelMaximized,

apps/web/src/components/settings/KeybindingsSettings.logic.test.ts

@@ -204,6 +204,7 @@ describe("KeybindingsSettings.logic", () => {
     expect(options).toEqual(
       expect.arrayContaining([
         "chat.new",
+        "composer.focus",
         "rightPanel.toggleMaximized",
         "thread.stop",
         "script.setup-db.run",

apps/web/src/keybindings.test.ts

@@ -738,6 +738,29 @@ describe("cross-command precedence", () => {
 });
 
 describe("resolveShortcutCommand", () => {
+  it.each(["MacIntel", "Win32", "Linux"])(
+    "resolves a custom composer-focus shortcut inside and outside terminals on %s",
+    (platform) => {
+      const keybindings = compile([
+        { shortcut: modShortcut("i", { shiftKey: true }), command: "composer.focus" },
+      ]);
+      const input = event({
+        key: "i",
+        shiftKey: true,
+        metaKey: platform === "MacIntel",
+        ctrlKey: platform !== "MacIntel",
+      });
+
+      for (const terminalFocus of [false, true]) {
+        assert.strictEqual(
+          resolveShortcutCommand(input, keybindings, { platform, context: { terminalFocus } }),
+          "composer.focus",
+        );
+        assert.isNull(resolveShortcutCommand(input, [], { platform }));
+      }
+    },
+  );
+
   it("resolves a custom stop-thread shortcut", () => {
     const keybindings = compile([{ shortcut: modShortcut("escape"), command: "thread.stop" }]);
 

docs/user/keybindings.md

@@ -53,6 +53,10 @@ a shortcut.
 
 ## Commands with special behavior
 
+`composer.focus` moves focus to the end of the current thread's composer, including
+from a terminal. It has no default shortcut; assign one with **Add keybinding** in
+**Settings → Keybindings**.
+
 `thread.stop` interrupts the running turn in the focused thread. It has no default
 shortcut; assign one in **Settings → Keybindings**.
 

packages/contracts/src/keybindings.test.ts

@@ -84,6 +84,12 @@ it.effect("parses keybinding rules", () =>
     });
     assert.strictEqual(parsedThemeEditor.command, "themeEditor.toggle");
 
+    const parsedComposerFocus = yield* decode(KeybindingRule, {
+      key: "mod+shift+i",
+      command: "composer.focus",
+    });
+    assert.strictEqual(parsedComposerFocus.command, "composer.focus");
+
     const parsedLocal = yield* decode(KeybindingRule, {
       key: "mod+shift+n",
       command: "chat.newLocal",

packages/contracts/src/keybindings.ts

@@ -72,6 +72,7 @@ export const STATIC_KEYBINDING_COMMANDS = [
   "filePicker.toggle",
   "projectSearch.toggle",
   "themeEditor.toggle",
+  "composer.focus",
   "composer.stash",
   "chat.new",
   "chat.newLocal",