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|
use smithay::delegate_xdg_shell;
use smithay::desktop::{Space, Window};
use smithay::input::pointer::{Focus, GrabStartData as PointerGrabStartData};
use smithay::input::Seat;
use smithay::reexports::wayland_protocols::xdg::shell::server::xdg_toplevel;
use smithay::reexports::wayland_server::protocol::wl_seat;
use smithay::reexports::wayland_server::protocol::wl_surface::WlSurface;
use smithay::reexports::wayland_server::Resource;
use smithay::utils::{Rectangle, Serial};
use smithay::wayland::compositor::with_states;
use smithay::wayland::shell::xdg::{
PopupSurface, PositionerState, ToplevelSurface, XdgShellHandler, XdgShellState,
XdgToplevelSurfaceData,
};
use crate::grabs::{MoveSurfaceGrab, ResizeSurfaceGrab};
use crate::Niri;
impl XdgShellHandler for Niri {
fn xdg_shell_state(&mut self) -> &mut XdgShellState {
&mut self.xdg_shell_state
}
fn new_toplevel(&mut self, surface: ToplevelSurface) {
let window = Window::new(surface);
self.space.map_element(window, (0, 0), false);
}
fn new_popup(&mut self, _surface: PopupSurface, _positioner: PositionerState) {
// TODO: Popup handling using PopupManager
}
fn move_request(&mut self, surface: ToplevelSurface, seat: wl_seat::WlSeat, serial: Serial) {
let seat = Seat::from_resource(&seat).unwrap();
let wl_surface = surface.wl_surface();
if let Some(start_data) = check_grab(&seat, wl_surface, serial) {
let pointer = seat.get_pointer().unwrap();
let window = self
.space
.elements()
.find(|w| w.toplevel().wl_surface() == wl_surface)
.unwrap()
.clone();
let initial_window_location = self.space.element_location(&window).unwrap();
let grab = MoveSurfaceGrab {
start_data,
window,
initial_window_location,
};
pointer.set_grab(self, grab, serial, Focus::Clear);
}
}
fn resize_request(
&mut self,
surface: ToplevelSurface,
seat: wl_seat::WlSeat,
serial: Serial,
edges: xdg_toplevel::ResizeEdge,
) {
let seat = Seat::from_resource(&seat).unwrap();
let wl_surface = surface.wl_surface();
if let Some(start_data) = check_grab(&seat, wl_surface, serial) {
let pointer = seat.get_pointer().unwrap();
let window = self
.space
.elements()
.find(|w| w.toplevel().wl_surface() == wl_surface)
.unwrap()
.clone();
let initial_window_location = self.space.element_location(&window).unwrap();
let initial_window_size = window.geometry().size;
surface.with_pending_state(|state| {
state.states.set(xdg_toplevel::State::Resizing);
});
surface.send_pending_configure();
let grab = ResizeSurfaceGrab::start(
start_data,
window,
edges.into(),
Rectangle::from_loc_and_size(initial_window_location, initial_window_size),
);
pointer.set_grab(self, grab, serial, Focus::Clear);
}
}
fn grab(&mut self, _surface: PopupSurface, _seat: wl_seat::WlSeat, _serial: Serial) {
// TODO popup grabs
}
fn maximize_request(&mut self, surface: ToplevelSurface) {
if surface
.current_state()
.capabilities
.contains(xdg_toplevel::WmCapabilities::Maximize)
{
let wl_surface = surface.wl_surface();
let window = self
.space
.elements()
.find(|w| w.toplevel().wl_surface() == wl_surface)
.unwrap()
.clone();
let geometry = self
.space
.output_geometry(self.output.as_ref().unwrap())
.unwrap();
surface.with_pending_state(|state| {
state.states.set(xdg_toplevel::State::Maximized);
state.size = Some(geometry.size);
});
self.space.map_element(window, geometry.loc, true);
}
// The protocol demands us to always reply with a configure,
// regardless of we fulfilled the request or not
surface.send_configure();
}
fn unmaximize_request(&mut self, surface: ToplevelSurface) {
if !surface
.current_state()
.states
.contains(xdg_toplevel::State::Maximized)
{
return;
}
surface.with_pending_state(|state| {
state.states.unset(xdg_toplevel::State::Maximized);
state.size = None;
});
surface.send_pending_configure();
}
}
// Xdg Shell
delegate_xdg_shell!(Niri);
fn check_grab(
seat: &Seat<Niri>,
surface: &WlSurface,
serial: Serial,
) -> Option<PointerGrabStartData<Niri>> {
let pointer = seat.get_pointer()?;
// Check that this surface has a click grab.
if !pointer.has_grab(serial) {
return None;
}
let start_data = pointer.grab_start_data()?;
let (focus, _) = start_data.focus.as_ref()?;
// If the focus was for a different surface, ignore the request.
if !focus.id().same_client_as(&surface.id()) {
return None;
}
Some(start_data)
}
/// Should be called on `WlSurface::commit`
pub fn handle_commit(space: &Space<Window>, surface: &WlSurface) -> Option<()> {
let window = space
.elements()
.find(|w| w.toplevel().wl_surface() == surface)
.cloned()?;
let initial_configure_sent = with_states(surface, |states| {
states
.data_map
.get::<XdgToplevelSurfaceData>()
.unwrap()
.lock()
.unwrap()
.initial_configure_sent
});
if !initial_configure_sent {
window.toplevel().send_configure();
}
Some(())
}
|
