Struct wayland_server::DataInit
source · [−]pub struct DataInit<'a, D: 'static> { /* private fields */ }
Expand description
Helper to initialize client-created objects
This helper is provided to you in your Dispatch
and GlobalDispatch
to
initialize objects created by the client, by assigning them their user-data (or ObjectData
if you
need to go this lower-level route).
This step is mandatory, and failing to initialize a newly created object will cause a panic.
Implementations
sourceimpl<'a, D> DataInit<'a, D>
impl<'a, D> DataInit<'a, D>
sourcepub fn init<I: Resource + 'static, U: Send + Sync + 'static>(
&mut self,
resource: New<I>,
data: U
) -> Iwhere
D: Dispatch<I, U> + 'static,
pub fn init<I: Resource + 'static, U: Send + Sync + 'static>(
&mut self,
resource: New<I>,
data: U
) -> Iwhere
D: Dispatch<I, U> + 'static,
Initialize an object by assigning it its user-data
sourcepub fn custom_init<I: Resource + 'static>(
&mut self,
resource: New<I>,
data: Arc<dyn ObjectData<D>>
) -> I
pub fn custom_init<I: Resource + 'static>(
&mut self,
resource: New<I>,
data: Arc<dyn ObjectData<D>>
) -> I
Set a custom ObjectData
for this object
This object data is not managed by wayland-server
, as a result you will not
be able to retreive it through Resource::data()
.
Instead, you’ll need to retrieve it using Resource::object_data()
and
handle the downcasting yourself.
Trait Implementations
Auto Trait Implementations
impl<'a, D> !RefUnwindSafe for DataInit<'a, D>
impl<'a, D> Send for DataInit<'a, D>
impl<'a, D> Sync for DataInit<'a, D>
impl<'a, D> Unpin for DataInit<'a, D>
impl<'a, D> !UnwindSafe for DataInit<'a, D>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
sourcefn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>
Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read moresourcefn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read moresourcefn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read moresourcefn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more