1. A method for decomposition of cross-platform display, the method comprising: receiving a request for data sent over a communication network from a client device, the request for data including information regarding a display screen of a host device, the host device display screen comprising a view of content associated with a file opened using an application at the host device; executing instructions stored in memory, wherein execution of instructions by a processor: identifies a plurality of different kinds of interface portions in the display screen of the host device, wherein each interface portion is associated with a command for the application hosted at the host device, determines a description for: each kind of interface portion, and each interface portion associated with each kind in the host device display screen, maps each of the descriptions to an interface component usable by a client device that does not host a corresponding application, and generates instructions for the client device based on the mapped descriptions; and transmitting the instructions over the communication network to the client device, wherein execution of the instructions by the client device reconfigures the different kinds of interface portions in the host device display screen into a single interface portion for the client device based on the mapped descriptions, and wherein commands for the application hosted at the host device and associated with the identified plurality of interface portions are grouped by kind and accessible at the client device via the single interface portion.