Panel API

Provides configuration inspection, runtime attribute updates, and lifecycle events for Default UI (DUI) and Columns UI (CUI) panels.

panel

panel.getConfig

Report the configuration of the calling panel. A panel configuration exists only for a DUI element or a CUI panel; on a standalone window the call fails.

This method takes no parameters.

Returns

Field	Type	Description
config	PanelConfig	The configuration.
config.panelName	string	Display name of the panel.
config.templateName	string	Name of the page template the panel loads.
config.edgeStyle	integer	Edge style of the panel frame: 0 none, 1 sunken, 2 grey.
config.urlOverride	string	URL loaded instead of the template; empty when none.
config.transparentBackground	boolean	Whether the panel renders with a transparent background.
config.grabFocus	boolean	Whether a click gives the panel keyboard focus.
config.enableDragDrop	boolean	Whether files can be dropped onto the panel.
config.enableDevTools	boolean	Whether the developer tools are enabled.

success is true on success. On failure the response is { success: false, error, code }; see Error codes for code.

const result = await fb2k.invoke('panel.getConfig');

panel.setConfig

Change the calling panel's configuration. Only the keys below can be set from a page; omitted keys keep their value. The other fields change only through the panel's dialog.

Parameter	Type	Required	Description
panelName	string	No	Display name of the panel.
transparentBackground	boolean	No	Whether the panel renders with a transparent background.
grabFocus	boolean	No	Whether a click gives the panel keyboard focus.
enableDragDrop	boolean	No	Whether files can be dropped onto the panel.

Returns

Field	Type	Description
changed	boolean	Whether anything changed.

success is true on success. On failure the response is { success: false, error, code }; see Error codes for code.

await fb2k.invoke('panel.setConfig', { grabFocus: true });

Security and Permission Constraints

enableDevTools, urlOverride, and templateName govern template loading and debugging security. They can only be modified manually through the panel configuration dialog and cannot be dynamically overridden via API.

Owner-family behavior and limits

• panel.setConfig changes only its documented panel fields.