ReadonlybackGoes back, as the system back does: closes this screen and answers the screen below it, typed as the screens that can open this one.
ReadonlycheckpointTakes a checkpoint of the process with this screen on top: what a fresh
process needs to continue from it (restoreCheckpoint), the stack below
included, without opening any screen again.
ReadonlydataWhat the screen shows: its data, as its data schema types it.
ReadonlyidWhich screen this is: its id in the screen catalog (an item's: its item id).
ReadonlykindWhat kind of thing the screen is: a screen, a tab, an inner tab, a feed or an item.
Taps the gallery thumbnail and opens the camera's gallery, which lists the phone's photos and videos in the camera's mode. Answers its handle.
ReadonlyoriginThe handle this one was opened from: the screen (or the item of its list)
whose call opened it, typed as what can open this screen; undefined for a
launch's or a tab's root.
ReadonlypipePasses the handle through the functions you give, left to right: handle.pipe(f, g) is g(f(handle)).
ReadonlyrawThe answers this visit received from the server, before any decoding; empty on a handle a checkpoint rebuilt.
Moves the camera's mode selector to Story and opens the story camera over this one. This is the one move of the selector that is offered. Answers the story camera's handle.
ReadonlytoThe handle as JSON: its data.
The handle of PostingCameraScreen: what you hold while the screen is open — its
dataand its actions (PostingCameraActions).