A non-transitory computer-readable storage medium may comprise instructions stored thereon. When executed by at least one processor, the instructions may be configured to cause a computing device to implement at least a user interface module and a coordinator module. The user interface module may be configured to pass layout constraints to the coordinator module. The coordinator module may be configured to process input received by the computing device, recognize gestures based on the input, update a display based on the recognized gestures and the layout constraints passed to the coordinator module by the user interface module, and in response to recognizing an application-specific gesture, pass the application-specific gesture to the user interface module.