Appbars provide content and actions related to the current screen.

  • The content of the appbar.

leading - The content to be placed at the start of the appbar.

trailing - The content to be placed at the end of the appbar.

Hierarchy

  • LitElement
    • ZetaAppbar

Other

  • Returns ZetaAppbar

centered: boolean = false

Centers the content of the title.

extended: boolean = false

Places the title below the main appbar.

rendering

  • Invoked on each update to perform rendering tasks. This method may return any value renderable by lit-html's ChildPart - typically a TemplateResult. Setting properties inside this method will not trigger the element to update.

    Returns TemplateResult<1>

styles

styles: CSSResult[] = ...

Array of styles to apply to the element. The styles should be defined using the css tag function, via constructible stylesheets, or imported from native CSS module scripts.

Note on Content Security Policy:

Element styles are implemented with <style> tags when the browser doesn't support adopted StyleSheets. To use such <style> tags with the style-src CSP directive, the style-src value must either include 'unsafe-inline' or nonce-<base64-value> with <base64-value> replaced be a server-generated nonce.

To provide a nonce to use on generated <style> elements, set window.litNonce to a server-generated nonce in your page's HTML, before loading application code:

<script>
// Generated and unique per request:
window.litNonce = 'a1b2c3d4';
</script>