pub trait DataOfferHandler: Sized {
// Required methods
fn source_actions(
&mut self,
conn: &Connection,
qh: &QueueHandle<Self>,
offer: &mut DragOffer,
actions: DndAction,
);
fn selected_action(
&mut self,
conn: &Connection,
qh: &QueueHandle<Self>,
offer: &mut DragOffer,
actions: DndAction,
);
}
Expand description
Handler trait for DataOffer events.
The functions defined in this trait are called as DataOffer events are received from the compositor.
Required Methods§
sourcefn source_actions(
&mut self,
conn: &Connection,
qh: &QueueHandle<Self>,
offer: &mut DragOffer,
actions: DndAction,
)
fn source_actions( &mut self, conn: &Connection, qh: &QueueHandle<Self>, offer: &mut DragOffer, actions: DndAction, )
Called to advertise the available DnD Actions as set by the source.
sourcefn selected_action(
&mut self,
conn: &Connection,
qh: &QueueHandle<Self>,
offer: &mut DragOffer,
actions: DndAction,
)
fn selected_action( &mut self, conn: &Connection, qh: &QueueHandle<Self>, offer: &mut DragOffer, actions: DndAction, )
Called to advertise the action selected by the compositor after matching the source/destination side actions. Only one action or none will be selected in the actions sent by the compositor. This may be called multiple times during a DnD operation. The most recent DndAction is the only valid one.
At the time of a drop
event on the data device, this action must be
used except in the case of an ask action. In the case that the last
action received is ask
, the destination asks the user for their
preference, then calls set_actions & accept each one last time. Finally,
the destination may then request data to be sent and finishing the data
offer