previous
Tell the activeRenderer to navigate to and display previous content fragment (i.e. page, spread, or content-document, depending on the renderer implementation). The navigation will be ignored if there is an ongoing navigation started with next(), previous(), goTo() or goToStart().
Calls onSuccess when the navigation has completed successfully. Calls onError with errorType set to "ABORTED" if the navigation is canceled because another action forced a view change before the navigation completed. Calls onError if the navigation cannot be done at all, for example if the atStart is true or another navigation is being performed.
Tell the activeRenderer to navigate to and display previous content fragment (i.e. page, spread, or content-document, depending on the renderer implementation). The navigation will be ignored if there is an ongoing navigation started with next(), previous(), goTo() or goToStart().
Return
Either ColibrioResult.Success when the navigation has completed successfully, or ColibrioResult.Error with errorType set to "ABORTED" if the navigation is canceled because another action forced a view change before the navigation completed, or if the navigation cannot be done at all, for example if the atStart is true or another navigation is being performed.