A panel to be shown alongside a TaskPanel in the system UI.
A Frontend's TaskProcessPanel will only be shown if it also has a TaskPanel active. It will not be shown for TaskPanels of other Frontends.
Unique identifier of a GenericPanel. Each ID is an increment of the previously created panel's ID, allowing this value to be used for sorting purposes.
The PanelContext given when the panel is attached to the system UI.
The fragment used when initially showing the panel. The fragment may be recreated by the system UI upon configuration changes.
Called when this panel is added to Frontend.panels, allowing it to be shown in the system UI.
Called when the panel is attached to the system UI. The panel may be detached and attached multiple times, for example on configuration changes. However, a panel will never be attached multiple times at once.
Called when the panel has been detached from the system UI. The panel may be attached again later, for example when the configuration changes.
Called when this panel is removed from Frontend.panels, preventing it from being shown in the system UI.