Trait wayland_backend::rs::server::GlobalHandler
source · pub trait GlobalHandler<D>: DowncastSync {
// Required method
fn bind(
self: Arc<Self>,
handle: &Handle,
data: &mut D,
client_id: ClientId,
global_id: GlobalId,
object_id: ObjectId,
) -> Arc<dyn ObjectData<D>>;
// Provided methods
fn can_view(
&self,
_client_id: ClientId,
_client_data: &Arc<dyn ClientData>,
_global_id: GlobalId,
) -> bool { ... }
fn debug(&self, f: &mut Formatter<'_>) -> Result { ... }
}
Expand description
A trait representing the handling of new bound globals
Required Methods§
sourcefn bind(
self: Arc<Self>,
handle: &Handle,
data: &mut D,
client_id: ClientId,
global_id: GlobalId,
object_id: ObjectId,
) -> Arc<dyn ObjectData<D>>
fn bind( self: Arc<Self>, handle: &Handle, data: &mut D, client_id: ClientId, global_id: GlobalId, object_id: ObjectId, ) -> Arc<dyn ObjectData<D>>
A global has been bound
Given client bound given global, creating given object.
The method must return the object data for the newly created object.
Provided Methods§
sourcefn can_view(
&self,
_client_id: ClientId,
_client_data: &Arc<dyn ClientData>,
_global_id: GlobalId,
) -> bool
fn can_view( &self, _client_id: ClientId, _client_data: &Arc<dyn ClientData>, _global_id: GlobalId, ) -> bool
Check if given client is allowed to interact with given global
If this function returns false, the client will not be notified of the existence of this global, and any attempt to bind it will result in a protocol error as if the global did not exist.
Default implementation always return true.
Implementations§
source§impl<D> dyn GlobalHandler<D>where
D: Any + 'static,
impl<D> dyn GlobalHandler<D>where
D: Any + 'static,
sourcepub fn is<__T: GlobalHandler<D>>(&self) -> bool
pub fn is<__T: GlobalHandler<D>>(&self) -> bool
Returns true if the trait object wraps an object of type __T
.
sourcepub fn downcast<__T: GlobalHandler<D>>(
self: Box<Self>,
) -> Result<Box<__T>, Box<Self>>
pub fn downcast<__T: GlobalHandler<D>>( self: Box<Self>, ) -> Result<Box<__T>, Box<Self>>
Returns a boxed object from a boxed trait object if the underlying object is of type
__T
. Returns the original boxed trait if it isn’t.
sourcepub fn downcast_rc<__T: GlobalHandler<D>>(
self: Rc<Self>,
) -> Result<Rc<__T>, Rc<Self>>
pub fn downcast_rc<__T: GlobalHandler<D>>( self: Rc<Self>, ) -> Result<Rc<__T>, Rc<Self>>
Returns an Rc
-ed object from an Rc
-ed trait object if the underlying object is of
type __T
. Returns the original Rc
-ed trait if it isn’t.
sourcepub fn downcast_ref<__T: GlobalHandler<D>>(&self) -> Option<&__T>
pub fn downcast_ref<__T: GlobalHandler<D>>(&self) -> Option<&__T>
Returns a reference to the object within the trait object if it is of type __T
, or
None
if it isn’t.
sourcepub fn downcast_mut<__T: GlobalHandler<D>>(&mut self) -> Option<&mut __T>
pub fn downcast_mut<__T: GlobalHandler<D>>(&mut self) -> Option<&mut __T>
Returns a mutable reference to the object within the trait object if it is of type
__T
, or None
if it isn’t.
sourcepub fn downcast_arc<__T: GlobalHandler<D> + Any + Send + Sync>(
self: Arc<Self>,
) -> Result<Arc<__T>, Arc<Self>>
pub fn downcast_arc<__T: GlobalHandler<D> + Any + Send + Sync>( self: Arc<Self>, ) -> Result<Arc<__T>, Arc<Self>>
Returns an Arc
-ed object from an Arc
-ed trait object if the underlying object is of
type __T
. Returns the original Arc
-ed trait if it isn’t.