> ## Documentation Index
> Fetch the complete documentation index at: https://anvil.servicetitan.com/llms.txt
> Use this file to discover all available pages before exploring further.

# App Header – Code

> The AppHeader provides a primary title between leading and trailing icon-button actions.

export const LiveCode = ({children, customHeight, clickToLoad, example, fullWidth, fullHeight, hideCodeInLiveCode, screenshot, screenshotOnly, showCode: showCodeProp}) => {
  const SCREENSHOTS_BASE = "https://servicetitan.github.io/anvil2-docs-live-code/screenshots";
  const STACKBLITZ_BASE = "https://stackblitz.com/github/servicetitan/anvil2-docs-live-code/tree/main/examples";
  const [showCodeBlock, setShowCodeBlock] = useState(showCodeProp ?? false);
  const [isLocalOverride, setIsLocalOverride] = useState(false);
  useEffect(() => {
    const examplePath = `/images/live-code-screenshots-tmp/${example}.png`;
    fetch(examplePath, {
      method: "HEAD"
    }).then(r => {
      if (r.ok) setIsLocalOverride(true);
    }).catch(() => {});
  }, [example]);
  const screenshotBase = isLocalOverride ? "/images/live-code-screenshots-tmp" : SCREENSHOTS_BASE;
  if (screenshotOnly) {
    return <Frame className="flex flex-col">
        <div className="flex dark:hidden" style={{
      justifyContent: "center",
      alignItems: "center",
      width: fullWidth ? "100%" : "50%",
      minHeight: fullHeight ? "284px" : undefined,
      background: "#FFFFFF"
    }}>
          <img srcset={`${screenshotBase}/${example}.png, ${screenshotBase}/${example}-2x.png 2x`} src={`${screenshotBase}/${example}.png`} alt={example} noZoom />
        </div>
        <div className="hidden dark:flex" style={{
      justifyContent: "center",
      alignItems: "center",
      width: fullWidth ? "100%" : "50%",
      minHeight: fullHeight ? "284px" : undefined,
      background: "#141414"
    }}>
          <img srcset={`${screenshotBase}/${example}-dark.png, ${screenshotBase}/${example}-dark-2x.png 2x`} src={`${screenshotBase}/${example}-dark.png`} alt={example} noZoom />
        </div>
      </Frame>;
  }
  if (screenshot) {
    return <Frame className="flex flex-col -mb-2">
        <div className="flex dark:hidden bg-white dark:bg-codeblock border border-gray-950/10 dark:border-white/10 dark:twoslash-dark rounded-2xl overflow-hidden" style={{
      justifyContent: "center",
      alignItems: "center",
      width: fullWidth ? "100%" : "50%",
      minHeight: fullHeight ? "284px" : undefined
    }}>
          <img srcset={`${screenshotBase}/${example}.png, ${screenshotBase}/${example}-2x.png 2x`} src={`${screenshotBase}/${example}.png`} alt={example} noZoom />
        </div>

        <div className="hidden dark:flex bg-white dark:bg-codeblock border border-gray-950/10 dark:border-white/10 dark:twoslash-dark rounded-2xl overflow-hidden" style={{
      background: "#141414",
      justifyContent: "center",
      alignItems: "center",
      width: fullWidth ? "100%" : "50%",
      minHeight: fullHeight ? "284px" : undefined
    }}>
          <img srcset={`${screenshotBase}/${example}-dark.png, ${screenshotBase}/${example}-dark-2x.png 2x`} src={`${screenshotBase}/${example}-dark.png`} alt={example} noZoom />
        </div>

        <div className="flex justify-end items-center text-xs py-2 px-1 gap-4">
          {!showCodeProp ? <button className="inline-flex justify-end items-center text-gray-700 dark:text-gray-50 hover:text-blue-500 dark:hover:text-blue-300 transition-colors group self-end gap-1 cursor-pointer" onClick={() => setShowCodeBlock(!showCodeBlock)} style={{
      appearance: "none"
    }}>
              <Icon icon="code" size="12px" className="group-hover:bg-blue-500 dark:group-hover:bg-blue-300" />
              <span>{showCodeBlock ? "Hide code" : "Show code"}</span>
            </button> : null}

          <a className="inline-flex justify-end items-center hover:text-blue-500 dark:hover:text-blue-300 transition-colors group self-end gap-1" href={`${STACKBLITZ_BASE}/${example}?file=src/App.tsx`} target="_blank" rel="noreferrer">
            <Icon icon="bolt" size="12px" className="group-hover:bg-blue-500 dark:group-hover:bg-blue-300" />
            <span>StackBlitz demo</span>
          </a>
        </div>

        <div className="grid transition-[grid-template-rows] duration-300 ease-in-out overflow-auto overflow-y-hidden overflow-x-auto" style={showCodeBlock ? {
      gridTemplateRows: "1fr"
    } : {
      gridTemplateRows: "0fr"
    }}>
          <div style={{
      minHeight: 0,
      overflowX: "auto",
      overflowY: "hidden",
      marginBlockStart: "-1.25rem",
      marginBlockEnd: "-1.5rem"
    }}>
            {children}
          </div>
        </div>
      </Frame>;
  } else {
    return <div style={{
      display: "flex",
      width: fullWidth ? "100%" : "50%",
      minHeight: customHeight ? customHeight : "316px",
      resize: "vertical",
      overflow: "auto"
    }}>
        <iframe title={example} style={{
      flex: 1,
      width: fullWidth ? "100%" : "50%",
      minHeight: customHeight ? customHeight : "316px"
    }} src={`${STACKBLITZ_BASE}/${example}?embed=1&hideNavigation=1&hideExplorer=1&terminalHeight=0&file=src/App.tsx${clickToLoad ? "&ctl=1" : ""}${hideCodeInLiveCode ? "&view=preview" : ""}`} allow="accelerometer; ambient-light-sensor; camera; encrypted-media; geolocation; gyroscope; hid; microphone; midi; payment; usb; vr; xr-spatial-tracking" sandbox="allow-forms allow-modals allow-popups allow-presentation allow-same-origin allow-scripts" />
      </div>;
  }
};

<Tabs>
  <Tab title="Implementation">
    <LiveCode showCode example="ai-kit-app-header" fullWidth screenshot>
      ```tsx lines expandable theme={null}
      import { AppHeader } from "@servicetitan/anvil2-ai-kit";
      import {
        IconMinimize2,
        IconPanelLeft,
        IconPanelRight,
        IconX,
      } from "@servicetitan/anvil2-icons";

      function App() {
        return (
          <div style={{ width: 900 }}>
            <AppHeader
              title="Title of conversation"
              leadingActions={[
                {
                  id: "rail",
                  icon: <IconPanelLeft />,
                  label: "Toggle left panel",
                  onPress: () => {},
                },
              ]}
              trailingActions={[
                {
                  id: "artifact",
                  icon: <IconPanelRight />,
                  label: "Toggle right panel",
                  onPress: () => {},
                },
                {
                  id: "minimize",
                  icon: <IconMinimize2 />,
                  label: "Minimize",
                  onPress: () => {},
                },
                {
                  id: "close",
                  icon: <IconX />,
                  label: "Close",
                  onPress: () => {},
                },
              ]}
            />
          </div>
        );
      }

      export default App;
      ```
    </LiveCode>

    ## Common Examples

    To use the `AppHeader`, pass a `title` and configured icon-button actions. It works standalone or in the `header` slot of `AppShell`.

    ```tsx theme={null}
    import { AppHeader } from "@servicetitan/anvil2-ai-kit";
    import { IconMenu, IconX } from "@servicetitan/anvil2-icons";

    function ExampleComponent() {
      return (
        <AppHeader
          title="Conversation"
          leadingActions={[
            { id: "menu", icon: <IconMenu />, label: "Open navigation" },
          ]}
          trailingActions={[
            { id: "close", icon: <IconX />, label: "Close" },
          ]}
        />
      );
    }
    ```

    ### Actions

    Each action renders as a ghost, icon-only `Button`. Its required `label` becomes the accessible name and tooltip.

    <LiveCode showCode example="ai-kit-app-header-actions" screenshot fullWidth>
      ```tsx lines expandable theme={null}
      import { AppHeader, CartoTheme } from "@servicetitan/anvil2-ai-kit";
      import {
        IconPanelLeft,
        IconPanelRight,
        IconX,
      } from "@servicetitan/anvil2-icons";
      import "@servicetitan/anvil2-ai-kit/styles.css";

      function App() {
        return (
          <CartoTheme>
            <div style={{ width: 900 }}>
              <AppHeader
                title="Title of conversation"
                leadingActions={[
                  {
                    id: "rail",
                    icon: <IconPanelLeft />,
                    label: "Toggle left panel",
                    onPress: () => {},
                  },
                ]}
                trailingActions={[
                  {
                    id: "artifact",
                    icon: <IconPanelRight />,
                    label: "Toggle right panel",
                    onPress: () => {},
                  },
                  { id: "close", icon: <IconX />, label: "Close", onPress: () => {} },
                ]}
              />
            </div>
          </CartoTheme>
        );
      }

      export default App;
      ```
    </LiveCode>

    Set `disabled` to prevent an action.

    <LiveCode showCode example="ai-kit-app-header-disabled-actions" screenshot fullWidth>
      ```tsx lines expandable theme={null}
      import { AppHeader, CartoTheme } from "@servicetitan/anvil2-ai-kit";
      import {
        IconMinimize2,
        IconPanelLeft,
        IconPanelRight,
        IconX,
      } from "@servicetitan/anvil2-icons";
      import "@servicetitan/anvil2-ai-kit/styles.css";

      function App() {
        return (
          <CartoTheme>
            <div style={{ width: 900 }}>
              <AppHeader
                title="Title of conversation"
                leadingActions={[
                  {
                    id: "rail",
                    icon: <IconPanelLeft />,
                    label: "Toggle left panel",
                    onPress: () => {},
                  },
                ]}
                trailingActions={[
                  {
                    id: "artifact",
                    icon: <IconPanelRight />,
                    label: "Toggle right panel",
                    onPress: () => {},
                    disabled: true,
                  },
                  {
                    id: "minimize",
                    icon: <IconMinimize2 />,
                    label: "Minimize",
                    onPress: () => {},
                    disabled: true,
                  },
                  { id: "close", icon: <IconX />, label: "Close", onPress: () => {} },
                ]}
              />
            </div>
          </CartoTheme>
        );
      }

      export default App;
      ```
    </LiveCode>

    ### Title

    The title renders as the view's `h1`. It fills the space between action clusters and truncates with an ellipsis before colliding with them.

    <LiveCode showCode example="ai-kit-app-header-title-truncation" screenshot fullWidth>
      ```tsx lines expandable theme={null}
      import { AppHeader, CartoTheme } from "@servicetitan/anvil2-ai-kit";
      import {
        IconMinimize2,
        IconPanelLeft,
        IconPanelRight,
        IconX,
      } from "@servicetitan/anvil2-icons";
      import "@servicetitan/anvil2-ai-kit/styles.css";

      function App() {
        return (
          <CartoTheme>
            <div style={{ width: 420 }}>
              <AppHeader
                title="A very long conversation title that truncates once it collides with the action clusters"
                leadingActions={[
                  {
                    id: "rail",
                    icon: <IconPanelLeft />,
                    label: "Toggle left panel",
                    onPress: () => {},
                  },
                ]}
                trailingActions={[
                  {
                    id: "artifact",
                    icon: <IconPanelRight />,
                    label: "Toggle right panel",
                    onPress: () => {},
                  },
                  {
                    id: "minimize",
                    icon: <IconMinimize2 />,
                    label: "Minimize",
                    onPress: () => {},
                  },
                  { id: "close", icon: <IconX />, label: "Close", onPress: () => {} },
                ]}
              />
            </div>
          </CartoTheme>
        );
      }

      export default App;
      ```
    </LiveCode>

    On a standalone, full-shell, or fullscreen window surface, the title is centered between the clusters. A docked `Window` start-aligns it automatically through app-surface context.

    ### Window drag handle

    Pass `dragHandleProps` from `useAppSurface()` to an action that moves a docked `Window`. The props are inert outside a docked window.

    ```tsx theme={null}
    const { dragHandleProps } = useAppSurface();

    <AppHeader
      leadingActions={[
        { icon: <IconGrip />, label: "Move window", dragHandleProps },
      ]}
    />;
    ```

    ## Internationalization

    `AppHeader` has no component-owned strings. Localize the title and each action label before passing them to the component.

    ## React Accessibility

    * The title is the primary `h1` for the framed view.
    * Every action requires a label used for its `aria-label` and tooltip.
    * Action buttons support pointer, touch, Enter, and Space through React Aria.
  </Tab>

  <Tab title="AppHeader Props">
    ```tsx theme={null}
    <AppHeader
      title="Conversation"
      leadingActions={leadingActions}
      trailingActions={trailingActions}
    />
    ```

    ## `AppHeader` Props

    The `AppHeader` accepts the following props and forwards remaining `<header>` attributes except `children`, native `title`, and `style`.

    <ParamField path="leadingActions" type="AppHeaderAction[]">
      Icon-button actions at the inline start.
    </ParamField>

    <ParamField path="title" type="string">
      Primary view title. Omit for an action-only header.
    </ParamField>

    <ParamField path="trailingActions" type="AppHeaderAction[]">
      Icon-button actions at the inline end.
    </ParamField>
  </Tab>

  <Tab title="AppHeaderAction">
    ```tsx theme={null}
    const action: AppHeaderAction = {
      id: "close",
      icon: <IconX />,
      label: "Close",
      onPress: close,
    };
    ```

    ## `AppHeaderAction`

    <ParamField path="icon" type="IconElement" required>
      Icon shown in the action button.
    </ParamField>

    <ParamField path="label" type="string" required>
      Accessible name and tooltip content.
    </ParamField>

    <ParamField path="disabled" type="boolean" default="false">
      Disables the action.
    </ParamField>

    <ParamField path="dragHandleProps" type="WindowDragHandleProps">
      Pointer and keyboard handlers that turn the action into a docked-window
      drag handle.
    </ParamField>

    <ParamField path="id" type="string">
      Stable React key. Defaults to `label`.
    </ParamField>

    <ParamField path="onPress" type="() => void">
      Handles action activation.
    </ParamField>
  </Tab>
</Tabs>