class GeometryProvider
Defined at line 23 of file ../../src/ui/scenic/lib/view_tree/geometry_provider.h
This class is responsible for registering and maintaining server endpoints for
fuchsia.ui.observation.geometry.ViewTreeWatcher protocol clients. This class also listens for new
snapshots generated every frame, and sends a processed version of them to these registered
clients.
Public Methods
void GeometryProvider ()Defined at line 25 of file ../../src/ui/scenic/lib/view_tree/geometry_provider.h
void Register (fidl::InterfaceRequest<fuchsia::ui::observation::geometry::ViewTreeWatcher> endpoint, zx_koid_t context_view)Adds a server side endpoint to |endpoints_| for lifecycle management.
Defined at line 31 of file ../../src/ui/scenic/lib/view_tree/geometry_provider.cc
void RegisterGlobalViewTreeWatcher (fidl::InterfaceRequest<fuchsia::ui::observation::geometry::ViewTreeWatcher> endpoint)Adds a server side endpoint provided by
fuchsia.ui.observation.test.Registry.RegisterGlobalViewTreeWatcher to |endpoints_|. Endpoints
registered by this method get a global access to the view tree.
Defined at line 36 of file ../../src/ui/scenic/lib/view_tree/geometry_provider.cc
void OnNewViewTreeSnapshot (std::shared_ptr<const view_tree::Snapshot> snapshot)Inject a new snapshot of the ViewTree. Adds the snapshot to each ProviderEndpoint's
|view_tree_snapshots_| and send a response to the respective clients if the required conditions
are met. See SendResponseMaybe() for more details on the required conditions.
Defined at line 62 of file ../../src/ui/scenic/lib/view_tree/geometry_provider.cc
fuchsia::ui::observation::geometry::ViewTreeSnapshotPtr ExtractObservationSnapshot (std::optional<zx_koid_t> endpoint_context_view, const view_tree::Snapshot & snapshot)Generates a fuchsia.ui.observation.geometry.ViewTreeSnapshot from the |snapshot| by
extracting information about the |context_view| and its descendant views from
|snapshot|.
Defined at line 81 of file ../../src/ui/scenic/lib/view_tree/geometry_provider.cc