Tells if the current ad requires an external UI, if #isAd is true.
The width of the document where the player/UI is embedded in.
Tells if the player is loading or playing an ad.
Tells if the player is currently in fullscreen mode.
Tells if the UI is running in a mobile browser.
Tells if the player is in playing or paused state.
The width of the player/UI element.
The context that will be passed to a UIConditionResolver to determine if it's conditions fulfil the context.