Calculated
Content Display Areas are based on the aspect-ratio derived from the publication's fixed-layout documents, if any exist. Otherwise, the aspect ratio is derived from the publication's cover image.
When the publication lacks both fixed-layout pages and cover image, the configurable fallback value is used instead.
Note: When this type is used, additional publication data might need to be fetched. This may negatively impact the time until first page rendered if the publication is streamed over the internet.
Properties
The aspect-ratio for Content Display Areas to use as fallback if the publication has no cover image. Defined as (width / height).
Configures insets that reserve space along the edges of the ReaderView, typically set to match the device's safe area insets to keep content clear of camera notches, rounded corners, or system UI elements.
Identifies the type of Content Display Area options.