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autocommit 2022-02-09 17:26:50 CET

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This commit is contained in:
Julian Orth 2022-02-09 17:26:50 +01:00
parent 4190b910f8
commit 8faab3fe53
25 changed files with 1081 additions and 316 deletions
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253
src/ifs/wl_seat/handling.rs → src/ifs/wl_seat/event_handling.rs
View file

@ -1,61 +1,68 @@
use crate::backend::{KeyState, OutputId, ScrollAxis, SeatEvent, SeatId};
use crate::client::{Client, ClientId};
use crate::fixed::Fixed;
use crate::ifs::ipc;
use crate::ifs::ipc::wl_data_device::WlDataDevice;
use crate::ifs::ipc::zwp_primary_selection_device_v1::ZwpPrimarySelectionDeviceV1;
use crate::ifs::wl_seat::wl_keyboard::WlKeyboard;
use crate::ifs::wl_seat::wl_pointer::{WlPointer, POINTER_FRAME_SINCE_VERSION};
use crate::ifs::wl_seat::{
wl_keyboard, wl_pointer, PointerGrab, PointerGrabber, WlSeat, WlSeatGlobal,
};
use crate::ifs::wl_seat::{wl_keyboard, wl_pointer, WlSeat, WlSeatGlobal, Dnd};
use crate::ifs::wl_surface::xdg_surface::xdg_popup::XdgPopup;
use crate::ifs::wl_surface::xdg_surface::xdg_toplevel::XdgToplevel;
use crate::ifs::wl_surface::xdg_surface::XdgSurface;
use crate::ifs::wl_surface::WlSurface;
use crate::tree::{FloatNode, FoundNode, Node};
use crate::utils::smallmap::SmallMap;
use crate::xkbcommon::{ModifierState, XKB_KEY_DOWN, XKB_KEY_UP};
use std::ops::{Deref, DerefMut};
use std::rc::Rc;
use crate::ifs::ipc;
use crate::ifs::ipc::wl_data_device::WlDataDevice;
use crate::ifs::ipc::zwp_primary_selection_device_v1::ZwpPrimarySelectionDeviceV1;
use crate::object::ObjectId;
use crate::tree::{FloatNode, Node};
use crate::utils::clonecell::CloneCell;
use crate::utils::smallmap::SmallMap;
use crate::wire::WlDataOfferId;
use crate::xkbcommon::{ModifierState, XKB_KEY_DOWN, XKB_KEY_UP};
use std::ops::{Deref};
use std::rc::Rc;
#[derive(Default)]
pub struct NodeSeatState {
pointer_foci: SmallMap<SeatId, Rc<WlSeatGlobal>, 1>,
kb_foci: SmallMap<SeatId, Rc<WlSeatGlobal>, 1>,
grabs: SmallMap<SeatId, PointerGrab, 1>,
grabs: SmallMap<SeatId, Rc<WlSeatGlobal>, 1>,
dnd_targets: SmallMap<SeatId, Rc<WlSeatGlobal>, 1>,
}
impl NodeSeatState {
fn enter(&self, seat: &Rc<WlSeatGlobal>) {
pub(super) fn enter(&self, seat: &Rc<WlSeatGlobal>) {
self.pointer_foci.insert(seat.seat.id(), seat.clone());
}
fn leave(&self, seat: &WlSeatGlobal) {
pub(super) fn leave(&self, seat: &WlSeatGlobal) {
self.pointer_foci.remove(&seat.seat.id());
}
fn focus(&self, seat: &Rc<WlSeatGlobal>) -> bool {
pub(super) fn focus(&self, seat: &Rc<WlSeatGlobal>) -> bool {
self.kb_foci.insert(seat.seat.id(), seat.clone());
self.kb_foci.len() == 1
}
fn unfocus(&self, seat: &WlSeatGlobal) -> bool {
pub(super) fn unfocus(&self, seat: &WlSeatGlobal) -> bool {
self.kb_foci.remove(&seat.seat.id());
self.kb_foci.len() == 0
}
fn add_pointer_grab(&self, seat: &Rc<WlSeatGlobal>) {
self.grabs
.insert(seat.id(), PointerGrab { seat: seat.clone() });
pub(super) fn add_pointer_grab(&self, seat: &Rc<WlSeatGlobal>) {
self.grabs.insert(seat.id(), seat.clone());
}
fn remove_pointer_grab(&self, seat: &WlSeatGlobal) {
pub(super) fn remove_pointer_grab(&self, seat: &WlSeatGlobal) {
self.grabs.remove(&seat.id());
}
pub(super) fn add_dnd_target(&self, seat: &Rc<WlSeatGlobal>) {
self.dnd_targets.insert(seat.id(), seat.clone());
}
pub(super) fn remove_dnd_target(&self, seat: &WlSeatGlobal) {
self.dnd_targets.remove(&seat.id());
}
// pub fn remove_pointer_grabs(&self) {
// self.grabs.clear();
// }
@ -65,8 +72,13 @@ impl NodeSeatState {
}
pub fn destroy_node(&self, node: &dyn Node) {
self.grabs.clear();
while let Some((_, seat)) = self.grabs.pop() {
seat.pointer_owner.revert_to_default(&seat);
}
let node_id = node.id();
while let Some((_, seat)) = self.dnd_targets.pop() {
seat.pointer_owner.dnd_target_removed(&seat);
}
while let Some((_, seat)) = self.pointer_foci.pop() {
let mut ps = seat.pointer_stack.borrow_mut();
while let Some(last) = ps.pop() {
@ -90,8 +102,8 @@ impl WlSeatGlobal {
match event {
SeatEvent::OutputPosition(o, x, y) => self.output_position_event(o, x, y),
SeatEvent::Motion(dx, dy) => self.motion_event(dx, dy),
SeatEvent::Button(b, s) => self.button_event(b, s),
SeatEvent::Scroll(d, a) => self.scroll_event(d, a),
SeatEvent::Button(b, s) => self.pointer_owner.button(self, b, s),
SeatEvent::Scroll(d, a) => self.pointer_owner.scroll(self, d, a),
SeatEvent::Key(k, s) => self.key_event(k, s),
}
}
@ -111,52 +123,6 @@ impl WlSeatGlobal {
self.set_new_position(x + dx, y + dy);
}
fn button_event(self: &Rc<Self>, button: u32, state: KeyState) {
let mut release_grab = false;
let mut grabber = self.grabber.borrow_mut();
let node = if let Some(pg) = grabber.deref_mut() {
if state == KeyState::Released {
pg.buttons.remove(&button);
if pg.buttons.is_empty() {
release_grab = true;
}
} else {
pg.buttons.insert(button, ());
}
pg.node.clone()
} else if state == KeyState::Pressed {
match self.pointer_node() {
Some(n) => {
*grabber = Some(PointerGrabber {
node: n.clone(),
buttons: SmallMap::new_with(button, ()),
});
n.seat_state().add_pointer_grab(self);
n
}
_ => return,
}
} else {
return;
};
drop(grabber);
if release_grab {
node.seat_state().remove_pointer_grab(self);
}
node.button(self, button, state);
}
fn scroll_event(&self, delta: i32, axis: ScrollAxis) {
let node = match self.grabber.borrow_mut().as_ref().map(|g| g.node.clone()) {
Some(n) => n,
_ => match self.pointer_node() {
Some(n) => n,
_ => return,
},
};
node.scroll(self, delta, axis);
}
fn key_event(&self, key: u32, state: KeyState) {
let (state, xkb_dir) = {
let mut pk = self.pressed_keys.borrow_mut();
@ -182,7 +148,7 @@ impl WlSeatGlobal {
}
impl WlSeatGlobal {
fn pointer_node(&self) -> Option<Rc<dyn Node>> {
pub(super) fn pointer_node(&self) -> Option<Rc<dyn Node>> {
self.pointer_stack.borrow().last().cloned()
}
@ -246,13 +212,22 @@ impl WlSeatGlobal {
if old.client_id() != Some(surface.client.id) {
self.offer_selection::<WlDataDevice>(&self.selection, &surface.client);
self.offer_selection::<ZwpPrimarySelectionDeviceV1>(&self.primary_selection, &surface.client);
self.offer_selection::<ZwpPrimarySelectionDeviceV1>(
&self.primary_selection,
&surface.client,
);
}
}
fn offer_selection<T: ipc::Vtable>(&self, field: &CloneCell<Option<Rc<T::Source>>>, client: &Rc<Client>) {
fn offer_selection<T: ipc::Vtable>(
&self,
field: &CloneCell<Option<Rc<T::Source>>>,
client: &Rc<Client>,
) {
match field.get() {
Some(sel) => ipc::offer_source_to::<T>(&sel, &client),
Some(sel) => {
ipc::offer_source_to::<T>(&sel, &client)
},
None => T::for_each_device(self, client.id, |dd| {
T::send_selection(dd, ObjectId::NONE.into());
}),
@ -367,86 +342,7 @@ impl WlSeatGlobal {
cursor.set_position(x.round_down(), y.round_down());
}
}
'handle_grab: {
let grab_node = {
let grabber = self.grabber.borrow_mut();
match grabber.as_ref() {
Some(n) => n.node.clone(),
None => break 'handle_grab,
}
};
if pos_changed {
let pos = grab_node.absolute_position();
let (x_int, y_int) = pos.translate(x.round_down(), y.round_down());
grab_node.motion(self, x.apply_fract(x_int), y.apply_fract(y_int));
}
return;
}
let mut found_tree = self.found_tree.borrow_mut();
let mut stack = self.pointer_stack.borrow_mut();
// if self.move_.get() {
// for node in stack.iter().rev() {
// if let NodeKind::Toplevel(tn) = node.clone().into_kind() {
// let (move_start_x, move_start_y) = self.move_start_pos.get();
// let (move_start_ex, move_start_ey) = self.extents_start_pos.get();
// let mut ex = tn.common.extents.get();
// ex.x = (x - move_start_x).round_down() + move_start_ex;
// ex.y = (y - move_start_y).round_down() + move_start_ey;
// tn.common.extents.set(ex);
// }
// }
// return;
// }
let x_int = x.round_down();
let y_int = y.round_down();
found_tree.push(FoundNode {
node: self.state.root.clone(),
x: x_int,
y: y_int,
});
self.state.root.find_tree_at(x_int, y_int, &mut found_tree);
let mut divergence = found_tree.len().min(stack.len());
for (i, (found, stack)) in found_tree.iter().zip(stack.iter()).enumerate() {
if found.node.id() != stack.id() {
divergence = i;
break;
}
}
if (stack.len(), found_tree.len()) == (divergence, divergence) {
if pos_changed {
if let Some(node) = found_tree.last() {
node.node
.motion(self, x.apply_fract(node.x), y.apply_fract(node.y));
}
}
} else {
if let Some(last) = stack.last() {
last.pointer_untarget(self);
}
for old in stack.drain(divergence..).rev() {
old.leave(self);
old.seat_state().leave(self);
}
if found_tree.len() == divergence {
if let Some(node) = found_tree.last() {
node.node
.clone()
.motion(self, x.apply_fract(node.x), y.apply_fract(node.y));
}
} else {
for new in found_tree.drain(divergence..) {
new.node.seat_state().enter(self);
new.node
.clone()
.enter(self, x.apply_fract(new.x), y.apply_fract(new.y));
stack.push(new.node);
}
}
if let Some(node) = stack.last() {
node.pointer_target(self);
}
}
found_tree.clear();
self.pointer_owner.handle_pointer_position(self);
}
}
@ -544,3 +440,54 @@ impl WlSeatGlobal {
}
}
}
// Dnd callbacks
impl WlSeatGlobal {
pub fn dnd_surface_leave(&self, surface: &WlSurface, dnd: &Dnd) {
if dnd.src.is_some() || surface.client.id == dnd.client.id {
self.for_each_data_device(0, surface.client.id, |dd| {
dd.send_leave();
})
}
if let Some(src) = &dnd.src {
src.on_leave();
}
surface.client.flush();
}
pub fn dnd_surface_drop(&self, surface: &WlSurface, dnd: &Dnd) {
if dnd.src.is_some() || surface.client.id == dnd.client.id {
self.for_each_data_device(0, surface.client.id, |dd| {
dd.send_drop();
})
}
if let Some(src) = &dnd.src {
src.on_drop();
}
surface.client.flush();
}
pub fn dnd_surface_enter(&self, surface: &WlSurface, dnd: &Dnd, x: Fixed, y: Fixed) {
if let Some(src) = &dnd.src {
ipc::offer_source_to::<WlDataDevice>(src, &surface.client);
src.for_each_data_offer(|offer| {
offer.device.send_enter(surface.id, x, y, offer.id);
offer.send_source_actions();
})
} else if surface.client.id == dnd.client.id {
self.for_each_data_device(0, dnd.client.id, |dd| {
dd.send_enter(surface.id, x, y, WlDataOfferId::NONE);
})
}
surface.client.flush();
}
pub fn dnd_surface_motion(&self, surface: &WlSurface, dnd: &Dnd, x: Fixed, y: Fixed) {
if dnd.src.is_some() || surface.client.id == dnd.client.id {
self.for_each_data_device(0, surface.client.id, |dd| {
dd.send_motion(x, y);
})
}
surface.client.flush();
}
}

353
src/ifs/wl_seat/pointer_owner.rs Normal file
View file

@ -0,0 +1,353 @@
use std::cell::Cell;
use std::rc::Rc;
use crate::backend::{KeyState, ScrollAxis};
use crate::fixed::Fixed;
use crate::ifs::ipc;
use crate::ifs::ipc::wl_data_device::WlDataDevice;
use crate::ifs::ipc::wl_data_source::WlDataSource;
use crate::ifs::wl_seat::{Dnd, DroppedDnd, WlSeatError, WlSeatGlobal};
use crate::ifs::wl_surface::WlSurface;
use crate::tree::{FoundNode, Node};
use crate::utils::clonecell::CloneCell;
use crate::utils::smallmap::SmallMap;
pub struct PointerOwnerHolder {
default: Rc<DefaultPointerOwner>,
owner: CloneCell<Rc<dyn PointerOwner>>,
}
impl Default for PointerOwnerHolder {
fn default() -> Self {
Self {
default: Rc::new(DefaultPointerOwner),
owner: CloneCell::new(Rc::new(DefaultPointerOwner)),
}
}
}
impl PointerOwnerHolder {
pub fn button(&self, seat: &Rc<WlSeatGlobal>, button: u32, state: KeyState) {
self.owner.get().button(seat, button, state)
}
pub fn scroll(&self, seat: &Rc<WlSeatGlobal>, delta: i32, axis: ScrollAxis) {
self.owner.get().scroll(seat, delta, axis)
}
pub fn handle_pointer_position(&self, seat: &Rc<WlSeatGlobal>) {
self.owner.get().handle_pointer_position(seat)
}
pub fn start_drag(&self, seat: &Rc<WlSeatGlobal>, origin: &Rc<WlSurface>, source: Option<Rc<WlDataSource>>) -> Result<(), WlSeatError> {
self.owner.get().start_drag(seat, origin, source)
}
pub fn cancel_dnd(&self, seat: &Rc<WlSeatGlobal>) {
self.owner.get().cancel_dnd(seat)
}
pub fn revert_to_default(&self, seat: &Rc<WlSeatGlobal>) {
self.owner.get().revert_to_default(seat)
}
pub fn dnd_target_removed(&self, seat: &Rc<WlSeatGlobal>) {
self.owner.get().dnd_target_removed(seat);
}
}
trait PointerOwner {
fn button(&self, seat: &Rc<WlSeatGlobal>, button: u32, state: KeyState);
fn scroll(&self, seat: &Rc<WlSeatGlobal>, delta: i32, axis: ScrollAxis);
fn handle_pointer_position(&self, seat: &Rc<WlSeatGlobal>);
fn start_drag(&self, seat: &Rc<WlSeatGlobal>, origin: &Rc<WlSurface>, source: Option<Rc<WlDataSource>>) -> Result<(), WlSeatError>;
fn cancel_dnd(&self, seat: &Rc<WlSeatGlobal>);
fn revert_to_default(&self, seat: &Rc<WlSeatGlobal>);
fn dnd_target_removed(&self, seat: &Rc<WlSeatGlobal>);
}
struct DefaultPointerOwner;
struct GrabPointerOwner {
buttons: SmallMap<u32, (), 1>,
node: Rc<dyn Node>,
}
struct DndPointerOwner {
button: u32,
dnd: Dnd,
target: CloneCell<Rc<dyn Node>>,
pos_x: Cell<Fixed>,
pos_y: Cell<Fixed>,
}
impl PointerOwner for DefaultPointerOwner {
fn button(&self, seat: &Rc<WlSeatGlobal>, button: u32, state: KeyState) {
if state != KeyState::Pressed {
return;
}
let pn = match seat.pointer_node() {
Some(n) => n,
_ => return,
};
seat.pointer_owner.owner.set(Rc::new(GrabPointerOwner {
buttons: SmallMap::new_with(button, ()),
node: pn.clone(),
}));
pn.seat_state().add_pointer_grab(seat);
pn.button(seat, button, state);
}
fn scroll(&self, seat: &Rc<WlSeatGlobal>, delta: i32, axis: ScrollAxis) {
if let Some(pn) = seat.pointer_node() {
pn.scroll(seat, delta, axis);
}
}
fn handle_pointer_position(&self, seat: &Rc<WlSeatGlobal>) {
let (x, y) = seat.pos.get();
let mut found_tree = seat.found_tree.borrow_mut();
let mut stack = seat.pointer_stack.borrow_mut();
let x_int = x.round_down();
let y_int = y.round_down();
found_tree.push(FoundNode {
node: seat.state.root.clone(),
x: x_int,
y: y_int,
});
seat.state.root.find_tree_at(x_int, y_int, &mut found_tree);
let mut divergence = found_tree.len().min(stack.len());
for (i, (found, stack)) in found_tree.iter().zip(stack.iter()).enumerate() {
if found.node.id() != stack.id() {
divergence = i;
break;
}
}
if (stack.len(), found_tree.len()) == (divergence, divergence) {
if let Some(node) = found_tree.last() {
node.node.motion(seat, x.apply_fract(node.x), y.apply_fract(node.y));
}
} else {
if let Some(last) = stack.last() {
last.pointer_untarget(seat);
}
for old in stack.drain(divergence..).rev() {
old.leave(seat);
old.seat_state().leave(seat);
}
if found_tree.len() == divergence {
if let Some(node) = found_tree.last() {
node.node
.clone()
.motion(seat, x.apply_fract(node.x), y.apply_fract(node.y));
}
} else {
for new in found_tree.drain(divergence..) {
new.node.seat_state().enter(seat);
new.node
.clone()
.enter(seat, x.apply_fract(new.x), y.apply_fract(new.y));
stack.push(new.node);
}
}
if let Some(node) = stack.last() {
node.pointer_target(seat);
}
}
found_tree.clear();
}
fn start_drag(&self, _seat: &Rc<WlSeatGlobal>, _origin: &Rc<WlSurface>, _source: Option<Rc<WlDataSource>>) -> Result<(), WlSeatError> {
Ok(())
}
fn cancel_dnd(&self, seat: &Rc<WlSeatGlobal>) {
seat.dropped_dnd.borrow_mut().take();
}
fn revert_to_default(&self, _seat: &Rc<WlSeatGlobal>) {
// nothing
}
fn dnd_target_removed(&self, seat: &Rc<WlSeatGlobal>) {
self.cancel_dnd(seat);
}
}
impl PointerOwner for GrabPointerOwner {
fn button(&self, seat: &Rc<WlSeatGlobal>, button: u32, state: KeyState) {
match state {
KeyState::Released => {
self.buttons.remove(&button);
if self.buttons.is_empty() {
self.node.seat_state().remove_pointer_grab(seat);
seat.tree_changed.trigger();
seat.pointer_owner.owner.set(seat.pointer_owner.default.clone());
}
},
KeyState::Pressed => {
self.buttons.insert(button, ());
},
}
self.node.clone().button(seat, button, state);
}
fn scroll(&self, seat: &Rc<WlSeatGlobal>, delta: i32, axis: ScrollAxis) {
self.node.scroll(seat, delta, axis);
}
fn handle_pointer_position(&self, seat: &Rc<WlSeatGlobal>) {
let (x, y) = seat.pos.get();
let pos = self.node.absolute_position();
let (x_int, y_int) = pos.translate(x.round_down(), y.round_down());
self.node.motion(seat, x.apply_fract(x_int), y.apply_fract(y_int));
}
fn start_drag(&self, seat: &Rc<WlSeatGlobal>, origin: &Rc<WlSurface>, src: Option<Rc<WlDataSource>>) -> Result<(), WlSeatError> {
let button = match self.buttons.iter().next() {
Some((b, _)) => b,
None => return Ok(()),
};
if self.buttons.len() != 1 {
return Ok(());
}
if self.node.id() != origin.node_id {
return Ok(());
}
if let Some(new) = &src {
ipc::attach_seat::<WlDataDevice>(&new, seat, ipc::Role::Dnd)?;
}
*seat.dropped_dnd.borrow_mut() = None;
let pointer_owner = Rc::new(DndPointerOwner {
button,
dnd: Dnd {
seat: seat.clone(),
client: origin.client.clone(),
src,
},
target: CloneCell::new(seat.state.root.clone()),
pos_x: Cell::new(Fixed::from_int(0)),
pos_y: Cell::new(Fixed::from_int(0)),
});
{
let mut stack = seat.pointer_stack.borrow_mut();
for node in stack.drain(1..).rev() {
node.leave(seat);
node.seat_state().leave(seat);
}
}
self.node.seat_state().remove_pointer_grab(seat);
// {
// let old = seat.keyboard_node.set(seat.state.root.clone());
// old.seat_state().unfocus(seat);
// old.unfocus(seat);
// }
seat.pointer_owner.owner.set(pointer_owner.clone());
pointer_owner.handle_pointer_position(seat);
Ok(())
}
fn cancel_dnd(&self, seat: &Rc<WlSeatGlobal>) {
seat.dropped_dnd.borrow_mut().take();
}
fn revert_to_default(&self, seat: &Rc<WlSeatGlobal>) {
self.node.seat_state().remove_pointer_grab(seat);
seat.pointer_owner.owner.set(seat.pointer_owner.default.clone());
}
fn dnd_target_removed(&self, seat: &Rc<WlSeatGlobal>) {
self.cancel_dnd(seat)
}
}
impl PointerOwner for DndPointerOwner {
fn button(&self, seat: &Rc<WlSeatGlobal>, button: u32, state: KeyState) {
if button != self.button || state != KeyState::Released {
return;
}
let should_drop = match &self.dnd.src {
None => true,
Some(s) => s.can_drop(),
};
let target = self.target.get();
if should_drop {
self.target.get().dnd_drop(&self.dnd);
*seat.dropped_dnd.borrow_mut() = Some(DroppedDnd {
dnd: self.dnd.clone(),
});
}
target.dnd_leave(&self.dnd);
target.seat_state().remove_dnd_target(seat);
if !should_drop {
if let Some(src) = &self.dnd.src {
ipc::detach_seat::<WlDataDevice>(src);
}
}
seat.pointer_owner.owner.set(seat.pointer_owner.default.clone());
seat.tree_changed.trigger();
}
fn scroll(&self, _seat: &Rc<WlSeatGlobal>, _delta: i32, _axis: ScrollAxis) {
// nothing
}
fn handle_pointer_position(&self, seat: &Rc<WlSeatGlobal>) {
let (x, y) = seat.pos.get();
let (x_int, y_int) = (x.round_down(), y.round_down());
let (node, x_int, y_int) = {
let mut found_tree = seat.found_tree.borrow_mut();
found_tree.push(FoundNode {
node: seat.state.root.clone(),
x: x_int,
y: y_int,
});
seat.state.root.find_tree_at(x_int, y_int, &mut found_tree);
let FoundNode {
node,
x,
y,
} = found_tree.pop().unwrap();
found_tree.clear();
(node, x, y)
};
let (x, y) = (x.apply_fract(x_int), y.apply_fract(y_int));
let mut target = self.target.get();
if node.id() != target.id() {
target.dnd_leave(&self.dnd);
target.seat_state().remove_dnd_target(seat);
target = node;
target.dnd_enter(&self.dnd, x, y);
target.seat_state().add_dnd_target(seat);
self.target.set(target);
} else if (self.pos_x.get(), self.pos_y.get()) != (x, y) {
node.dnd_motion(&self.dnd, x, y);
}
self.pos_x.set(x);
self.pos_y.set(y);
}
fn start_drag(&self, _seat: &Rc<WlSeatGlobal>, _origin: &Rc<WlSurface>, _source: Option<Rc<WlDataSource>>) -> Result<(), WlSeatError> {
Ok(())
}
fn cancel_dnd(&self, seat: &Rc<WlSeatGlobal>) {
let target = self.target.get();
target.dnd_leave(&self.dnd);
target.seat_state().remove_dnd_target(seat);
if let Some(src) = &self.dnd.src {
ipc::detach_seat::<WlDataDevice>(src);
}
seat.pointer_owner.owner.set(seat.pointer_owner.default.clone());
seat.tree_changed.trigger();
}
fn revert_to_default(&self, seat: &Rc<WlSeatGlobal>) {
self.cancel_dnd(seat)
}
fn dnd_target_removed(&self, seat: &Rc<WlSeatGlobal>) {
self.target.get().dnd_leave(&self.dnd);
self.target.set(seat.state.root.clone());
seat.state.tree_changed();
}
}