template <>class WireSyncClientImpl
Defined at line 1527 of file fidling/gen/sdk/fidl/fuchsia.ui.composition/fuchsia.ui.composition/cpp/fidl/fuchsia.ui.composition/cpp/wire_messaging.h
Methods to make a sync FIDL call directly on an unowned handle or a
const reference to a |::fidl::ClientEnd
<
::fuchsia_ui_composition::ChildViewWatcher>|,
avoiding setting up a client.
Public Methods
::fidl::WireResult< ::fuchsia_ui_composition::ChildViewWatcher::GetStatus> GetStatus ()A hanging get for receiving the status of a View. This provides information to the parent,
such as whether or not the child has successfully presented content through this View.
This hanging get will only fire when the ChildViewStatus is different than the previously
returned ChildViewStatus. This can happen immediately, and even if the creator of the
Viewport hasn't yet called Present() after calling CreateViewport(). This allows the parent
to know that the child has content ready to display before the parent modifies their own
local scene graph to incorporate the child content.
It is invalid to call `GetStatus` while a previous call is still pending. Doing so will
cause both this channel and the Flatland channel that handed out ChildViewWatcher to be
closed.
Allocates 40 bytes of message buffer on the stack. No heap allocation necessary.
::fidl::WireResult< ::fuchsia_ui_composition::ChildViewWatcher::GetViewRef> GetViewRef ()Hanging get to receive the ViewRef of the child View. This will only fire when the View ref
is different from the previously-returned View ref. Note: currently the View ref will not
change after it is first received, but this will change if/when the API changes to allow
relinking of views.
The ViewRef is not returned until the View is included in the View tree, in other words when
there is a chain of ancestor transforms all the way back up to the root of the scene graph,
i.e. the display.
It is invalid to call `GetViewRef` while a previous call is still pending. Doing so will
cause both this channel and the Flatland channel that handed out ChildViewWatcher to be
closed.
A `GetViewRef` call will hang if the View was created using `CreateView`, but returns the
View if the View was created using CreateView2. This is because `CreateView` does not mint
a ViewRef for that View.
Allocates 40 bytes of message buffer on the stack. No heap allocation necessary.