658 lines
24 KiB
Rust
658 lines
24 KiB
Rust
use std::rc::Rc;
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use std::sync::Arc;
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use parking_lot::Mutex;
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use wayland_backend::client::ObjectId;
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use wayland_backend::protocol::WEnum;
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use wayland_client::protocol::wl_callback::WlCallback;
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use wayland_client::protocol::wl_pointer::AxisRelativeDirection;
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use wayland_client::{
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delegate_noop,
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protocol::{
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wl_buffer, wl_callback, wl_compositor, wl_keyboard, wl_pointer, wl_registry, wl_seat,
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wl_shm, wl_shm_pool,
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wl_surface::{self, WlSurface},
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},
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Connection, Dispatch, EventQueue, Proxy, QueueHandle,
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};
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use wayland_protocols::wp::fractional_scale::v1::client::{
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wp_fractional_scale_manager_v1, wp_fractional_scale_v1,
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};
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use wayland_protocols::wp::viewporter::client::{wp_viewport, wp_viewporter};
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use wayland_protocols::xdg::shell::client::{xdg_surface, xdg_toplevel, xdg_wm_base};
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use xkbcommon::xkb;
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use xkbcommon::xkb::ffi::XKB_KEYMAP_FORMAT_TEXT_V1;
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use xkbcommon::xkb::{Keycode, KEYMAP_COMPILE_NO_FLAGS};
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use crate::platform::linux::client::Client;
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use crate::platform::linux::wayland::window::WaylandWindow;
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use crate::platform::{LinuxPlatformInner, PlatformWindow};
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use crate::PlatformInput::KeyDown;
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use crate::ScrollDelta;
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use crate::{
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platform::linux::wayland::window::WaylandWindowState, AnyWindowHandle, DisplayId, KeyDownEvent,
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KeyUpEvent, Keystroke, Modifiers, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent,
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Pixels, PlatformDisplay, PlatformInput, Point, ScrollWheelEvent, TouchPhase, WindowOptions,
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};
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const MIN_KEYCODE: u32 = 8; // used to convert evdev scancode to xkb scancode
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pub(crate) struct WaylandClientState {
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compositor: Option<wl_compositor::WlCompositor>,
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buffer: Option<wl_buffer::WlBuffer>,
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wm_base: Option<xdg_wm_base::XdgWmBase>,
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viewporter: Option<wp_viewporter::WpViewporter>,
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fractional_scale_manager: Option<wp_fractional_scale_manager_v1::WpFractionalScaleManagerV1>,
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windows: Vec<(xdg_surface::XdgSurface, Rc<WaylandWindowState>)>,
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platform_inner: Rc<LinuxPlatformInner>,
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wl_seat: Option<wl_seat::WlSeat>,
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keymap_state: Option<xkb::State>,
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modifiers: Modifiers,
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scroll_direction: f64,
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mouse_location: Option<Point<Pixels>>,
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button_pressed: Option<MouseButton>,
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mouse_focused_window: Option<Rc<WaylandWindowState>>,
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keyboard_focused_window: Option<Rc<WaylandWindowState>>,
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}
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pub(crate) struct WaylandClient {
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platform_inner: Rc<LinuxPlatformInner>,
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conn: Arc<Connection>,
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state: Mutex<WaylandClientState>,
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event_queue: Mutex<EventQueue<WaylandClientState>>,
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qh: Arc<QueueHandle<WaylandClientState>>,
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}
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impl WaylandClient {
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pub(crate) fn new(linux_platform_inner: Rc<LinuxPlatformInner>, conn: Arc<Connection>) -> Self {
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let state = WaylandClientState {
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compositor: None,
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buffer: None,
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wm_base: None,
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viewporter: None,
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fractional_scale_manager: None,
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windows: Vec::new(),
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platform_inner: Rc::clone(&linux_platform_inner),
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wl_seat: None,
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keymap_state: None,
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modifiers: Modifiers {
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shift: false,
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control: false,
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alt: false,
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function: false,
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command: false,
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},
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scroll_direction: -1.0,
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mouse_location: None,
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button_pressed: None,
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mouse_focused_window: None,
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keyboard_focused_window: None,
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};
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let event_queue: EventQueue<WaylandClientState> = conn.new_event_queue();
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let qh = event_queue.handle();
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Self {
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platform_inner: linux_platform_inner,
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conn,
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state: Mutex::new(state),
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event_queue: Mutex::new(event_queue),
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qh: Arc::new(qh),
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}
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}
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}
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impl Client for WaylandClient {
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fn run(&self, on_finish_launching: Box<dyn FnOnce()>) {
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let display = self.conn.display();
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let mut eq = self.event_queue.lock();
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let _registry = display.get_registry(&self.qh, ());
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eq.roundtrip(&mut self.state.lock()).unwrap();
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on_finish_launching();
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while !self.platform_inner.state.lock().quit_requested {
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eq.flush().unwrap();
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eq.dispatch_pending(&mut self.state.lock()).unwrap();
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if let Some(guard) = self.conn.prepare_read() {
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guard.read().unwrap();
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eq.dispatch_pending(&mut self.state.lock()).unwrap();
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}
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if let Ok(runnable) = self.platform_inner.main_receiver.try_recv() {
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runnable.run();
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}
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}
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}
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fn displays(&self) -> Vec<Rc<dyn PlatformDisplay>> {
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Vec::new()
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}
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fn display(&self, id: DisplayId) -> Option<Rc<dyn PlatformDisplay>> {
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unimplemented!()
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}
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fn open_window(
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&self,
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handle: AnyWindowHandle,
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options: WindowOptions,
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) -> Box<dyn PlatformWindow> {
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let mut state = self.state.lock();
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let wm_base = state.wm_base.as_ref().unwrap();
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let compositor = state.compositor.as_ref().unwrap();
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let wl_surface = compositor.create_surface(&self.qh, ());
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let xdg_surface = wm_base.get_xdg_surface(&wl_surface, &self.qh, ());
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let toplevel = xdg_surface.get_toplevel(&self.qh, ());
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let wl_surface = Arc::new(wl_surface);
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let viewport = state
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.viewporter
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.as_ref()
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.map(|viewporter| viewporter.get_viewport(&wl_surface, &self.qh, ()));
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wl_surface.frame(&self.qh, wl_surface.clone());
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wl_surface.commit();
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let window_state = Rc::new(WaylandWindowState::new(
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&self.conn,
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wl_surface.clone(),
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viewport,
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Arc::new(toplevel),
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options,
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));
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if let Some(fractional_scale_manager) = state.fractional_scale_manager.as_ref() {
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fractional_scale_manager.get_fractional_scale(&wl_surface, &self.qh, xdg_surface.id());
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}
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state.windows.push((xdg_surface, Rc::clone(&window_state)));
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Box::new(WaylandWindow(window_state))
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}
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}
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impl Dispatch<wl_registry::WlRegistry, ()> for WaylandClientState {
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fn event(
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state: &mut Self,
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registry: &wl_registry::WlRegistry,
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event: wl_registry::Event,
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_: &(),
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_: &Connection,
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qh: &QueueHandle<Self>,
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) {
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if let wl_registry::Event::Global {
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name, interface, ..
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} = event
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{
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match &interface[..] {
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"wl_compositor" => {
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let compositor =
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registry.bind::<wl_compositor::WlCompositor, _, _>(name, 1, qh, ());
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state.compositor = Some(compositor);
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}
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"xdg_wm_base" => {
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let wm_base = registry.bind::<xdg_wm_base::XdgWmBase, _, _>(name, 1, qh, ());
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state.wm_base = Some(wm_base);
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}
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"wl_seat" => {
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let seat = registry.bind::<wl_seat::WlSeat, _, _>(name, 1, qh, ());
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state.wl_seat = Some(seat);
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}
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"wp_fractional_scale_manager_v1" => {
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let manager = registry
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.bind::<wp_fractional_scale_manager_v1::WpFractionalScaleManagerV1, _, _>(
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name,
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1,
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qh,
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(),
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);
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state.fractional_scale_manager = Some(manager);
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}
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"wp_viewporter" => {
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let view_porter =
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registry.bind::<wp_viewporter::WpViewporter, _, _>(name, 1, qh, ());
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state.viewporter = Some(view_porter);
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}
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_ => {}
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};
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}
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}
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}
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delegate_noop!(WaylandClientState: ignore wl_compositor::WlCompositor);
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delegate_noop!(WaylandClientState: ignore wl_surface::WlSurface);
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delegate_noop!(WaylandClientState: ignore wl_shm::WlShm);
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delegate_noop!(WaylandClientState: ignore wl_shm_pool::WlShmPool);
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delegate_noop!(WaylandClientState: ignore wl_buffer::WlBuffer);
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delegate_noop!(WaylandClientState: ignore wp_fractional_scale_manager_v1::WpFractionalScaleManagerV1);
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delegate_noop!(WaylandClientState: ignore wp_viewporter::WpViewporter);
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delegate_noop!(WaylandClientState: ignore wp_viewport::WpViewport);
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impl Dispatch<WlCallback, Arc<WlSurface>> for WaylandClientState {
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fn event(
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state: &mut Self,
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_: &WlCallback,
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event: wl_callback::Event,
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surf: &Arc<WlSurface>,
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_: &Connection,
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qh: &QueueHandle<Self>,
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) {
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if let wl_callback::Event::Done { .. } = event {
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for window in &state.windows {
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if window.1.surface.id() == surf.id() {
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window.1.surface.frame(qh, surf.clone());
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window.1.update();
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window.1.surface.commit();
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}
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}
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}
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}
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}
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impl Dispatch<xdg_surface::XdgSurface, ()> for WaylandClientState {
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fn event(
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state: &mut Self,
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xdg_surface: &xdg_surface::XdgSurface,
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event: xdg_surface::Event,
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_: &(),
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_: &Connection,
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_: &QueueHandle<Self>,
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) {
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if let xdg_surface::Event::Configure { serial, .. } = event {
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xdg_surface.ack_configure(serial);
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for window in &state.windows {
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if &window.0 == xdg_surface {
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window.1.update();
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window.1.surface.commit();
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return;
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}
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}
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}
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}
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}
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impl Dispatch<xdg_toplevel::XdgToplevel, ()> for WaylandClientState {
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fn event(
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state: &mut Self,
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xdg_toplevel: &xdg_toplevel::XdgToplevel,
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event: <xdg_toplevel::XdgToplevel as Proxy>::Event,
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_: &(),
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_: &Connection,
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_: &QueueHandle<Self>,
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) {
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if let xdg_toplevel::Event::Configure {
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width,
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height,
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states: _states,
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} = event
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{
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if width == 0 || height == 0 {
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return;
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}
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for window in &state.windows {
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if window.1.toplevel.id() == xdg_toplevel.id() {
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window.1.resize(width, height);
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window.1.surface.commit();
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return;
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}
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}
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} else if let xdg_toplevel::Event::Close = event {
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state.windows.retain(|(_, window)| {
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if window.toplevel.id() == xdg_toplevel.id() {
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window.toplevel.destroy();
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false
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} else {
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true
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}
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});
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state.platform_inner.state.lock().quit_requested |= state.windows.is_empty();
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}
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}
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}
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impl Dispatch<xdg_wm_base::XdgWmBase, ()> for WaylandClientState {
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fn event(
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_: &mut Self,
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wm_base: &xdg_wm_base::XdgWmBase,
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event: <xdg_wm_base::XdgWmBase as Proxy>::Event,
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_: &(),
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_: &Connection,
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_: &QueueHandle<Self>,
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) {
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if let xdg_wm_base::Event::Ping { serial } = event {
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wm_base.pong(serial);
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}
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}
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}
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impl Dispatch<wl_seat::WlSeat, ()> for WaylandClientState {
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fn event(
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state: &mut Self,
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seat: &wl_seat::WlSeat,
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event: wl_seat::Event,
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data: &(),
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conn: &Connection,
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qh: &QueueHandle<Self>,
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) {
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if let wl_seat::Event::Capabilities {
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capabilities: WEnum::Value(capabilities),
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} = event
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{
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if capabilities.contains(wl_seat::Capability::Keyboard) {
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seat.get_keyboard(qh, ());
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}
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if capabilities.contains(wl_seat::Capability::Pointer) {
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seat.get_pointer(qh, ());
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}
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}
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}
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}
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impl Dispatch<wl_keyboard::WlKeyboard, ()> for WaylandClientState {
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fn event(
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state: &mut Self,
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keyboard: &wl_keyboard::WlKeyboard,
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event: wl_keyboard::Event,
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data: &(),
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conn: &Connection,
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qh: &QueueHandle<Self>,
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) {
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match event {
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wl_keyboard::Event::Keymap {
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format: WEnum::Value(format),
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fd,
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size,
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..
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} => {
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assert_eq!(
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format,
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wl_keyboard::KeymapFormat::XkbV1,
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"Unsupported keymap format"
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);
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let keymap = unsafe {
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xkb::Keymap::new_from_fd(
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&xkb::Context::new(xkb::CONTEXT_NO_FLAGS),
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fd,
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size as usize,
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XKB_KEYMAP_FORMAT_TEXT_V1,
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KEYMAP_COMPILE_NO_FLAGS,
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)
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.unwrap()
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}
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.unwrap();
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state.keymap_state = Some(xkb::State::new(&keymap));
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}
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wl_keyboard::Event::Enter { surface, .. } => {
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for window in &state.windows {
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if window.1.surface.id() == surface.id() {
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state.keyboard_focused_window = Some(Rc::clone(&window.1));
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}
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}
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}
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wl_keyboard::Event::Modifiers {
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mods_depressed,
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mods_latched,
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mods_locked,
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group,
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..
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} => {
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state.keymap_state.as_mut().unwrap().update_mask(
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mods_depressed,
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mods_latched,
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mods_locked,
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0,
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0,
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group,
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);
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}
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wl_keyboard::Event::Key {
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key,
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state: WEnum::Value(key_state),
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..
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} => {
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let keymap_state = state.keymap_state.as_ref().unwrap();
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let key_utf8 = keymap_state.key_get_utf8(Keycode::from(key + MIN_KEYCODE));
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let key_sym = keymap_state.key_get_one_sym(Keycode::from(key + MIN_KEYCODE));
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let key = if matches!(
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key_sym,
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xkb::Keysym::BackSpace
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| xkb::Keysym::Left
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| xkb::Keysym::Right
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| xkb::Keysym::Down
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| xkb::Keysym::Up
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| xkb::Keysym::Super_L
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| xkb::Keysym::Super_R
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) {
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xkb::keysym_get_name(key_sym).to_lowercase()
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} else {
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key_utf8.clone()
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};
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let focused_window = &state.keyboard_focused_window;
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if let Some(focused_window) = focused_window {
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match key_state {
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wl_keyboard::KeyState::Pressed => {
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if key_sym == xkb::Keysym::Shift_L || key_sym == xkb::Keysym::Shift_R {
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state.modifiers.shift = true;
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} else if key_sym == xkb::Keysym::Control_L
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|| key_sym == xkb::Keysym::Control_R
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{
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state.modifiers.control = true;
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} else if key_sym == xkb::Keysym::Alt_L || key_sym == xkb::Keysym::Alt_R
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{
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state.modifiers.alt = true;
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} else {
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focused_window.handle_input(KeyDown(KeyDownEvent {
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keystroke: Keystroke {
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modifiers: state.modifiers,
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key,
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ime_key: None,
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},
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is_held: false, // todo!(linux)
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}));
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}
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}
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wl_keyboard::KeyState::Released => {
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if key_sym == xkb::Keysym::Shift_L || key_sym == xkb::Keysym::Shift_R {
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state.modifiers.shift = false;
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} else if key_sym == xkb::Keysym::Control_L
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|| key_sym == xkb::Keysym::Control_R
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{
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state.modifiers.control = false;
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} else if key_sym == xkb::Keysym::Alt_L || key_sym == xkb::Keysym::Alt_R
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{
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state.modifiers.alt = false;
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} else {
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focused_window.handle_input(PlatformInput::KeyUp(KeyUpEvent {
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keystroke: Keystroke {
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modifiers: state.modifiers,
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key,
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ime_key: None,
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},
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}));
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}
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}
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_ => {}
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}
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}
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}
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wl_keyboard::Event::Leave { .. } => {
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state.modifiers = Modifiers {
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control: false,
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alt: false,
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shift: false,
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command: false,
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function: false,
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};
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}
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_ => {}
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}
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}
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}
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fn linux_button_to_gpui(button: u32) -> MouseButton {
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match button {
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0x110 => MouseButton::Left,
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0x111 => MouseButton::Right,
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0x112 => MouseButton::Middle,
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_ => unimplemented!(), // todo!(linux)
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}
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}
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impl Dispatch<wl_pointer::WlPointer, ()> for WaylandClientState {
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fn event(
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state: &mut Self,
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wl_pointer: &wl_pointer::WlPointer,
|
|
event: wl_pointer::Event,
|
|
data: &(),
|
|
conn: &Connection,
|
|
qh: &QueueHandle<Self>,
|
|
) {
|
|
match event {
|
|
wl_pointer::Event::Enter {
|
|
surface,
|
|
surface_x,
|
|
surface_y,
|
|
..
|
|
} => {
|
|
for window in &state.windows {
|
|
if window.1.surface.id() == surface.id() {
|
|
state.mouse_focused_window = Some(Rc::clone(&window.1));
|
|
}
|
|
}
|
|
state.mouse_location = Some(Point {
|
|
x: Pixels::from(surface_x),
|
|
y: Pixels::from(surface_y),
|
|
});
|
|
}
|
|
wl_pointer::Event::Motion {
|
|
time,
|
|
surface_x,
|
|
surface_y,
|
|
..
|
|
} => {
|
|
let focused_window = &state.mouse_focused_window;
|
|
if let Some(focused_window) = focused_window {
|
|
state.mouse_location = Some(Point {
|
|
x: Pixels::from(surface_x),
|
|
y: Pixels::from(surface_y),
|
|
});
|
|
focused_window.handle_input(PlatformInput::MouseMove(MouseMoveEvent {
|
|
position: state.mouse_location.unwrap(),
|
|
pressed_button: state.button_pressed,
|
|
modifiers: state.modifiers,
|
|
}))
|
|
}
|
|
}
|
|
wl_pointer::Event::Button {
|
|
button,
|
|
state: WEnum::Value(button_state),
|
|
..
|
|
} => {
|
|
let focused_window = &state.mouse_focused_window;
|
|
let mouse_location = &state.mouse_location;
|
|
if let (Some(focused_window), Some(mouse_location)) =
|
|
(focused_window, mouse_location)
|
|
{
|
|
match button_state {
|
|
wl_pointer::ButtonState::Pressed => {
|
|
state.button_pressed = Some(linux_button_to_gpui(button));
|
|
focused_window.handle_input(PlatformInput::MouseDown(MouseDownEvent {
|
|
button: linux_button_to_gpui(button),
|
|
position: *mouse_location,
|
|
modifiers: state.modifiers,
|
|
click_count: 1,
|
|
}));
|
|
}
|
|
wl_pointer::ButtonState::Released => {
|
|
state.button_pressed = None;
|
|
focused_window.handle_input(PlatformInput::MouseUp(MouseUpEvent {
|
|
button: linux_button_to_gpui(button),
|
|
position: *mouse_location,
|
|
modifiers: Modifiers {
|
|
shift: false,
|
|
control: false,
|
|
alt: false,
|
|
function: false,
|
|
command: false,
|
|
},
|
|
click_count: 1,
|
|
}));
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
}
|
|
wl_pointer::Event::AxisRelativeDirection {
|
|
direction: WEnum::Value(direction),
|
|
..
|
|
} => {
|
|
state.scroll_direction = match direction {
|
|
AxisRelativeDirection::Identical => -1.0,
|
|
AxisRelativeDirection::Inverted => 1.0,
|
|
_ => -1.0,
|
|
}
|
|
}
|
|
wl_pointer::Event::Axis {
|
|
time,
|
|
axis: WEnum::Value(axis),
|
|
value,
|
|
..
|
|
} => {
|
|
let focused_window = &state.mouse_focused_window;
|
|
let mouse_location = &state.mouse_location;
|
|
if let (Some(focused_window), Some(mouse_location)) =
|
|
(focused_window, mouse_location)
|
|
{
|
|
let value = value * state.scroll_direction;
|
|
focused_window.handle_input(PlatformInput::ScrollWheel(ScrollWheelEvent {
|
|
position: *mouse_location,
|
|
delta: match axis {
|
|
wl_pointer::Axis::VerticalScroll => {
|
|
ScrollDelta::Pixels(Point::new(Pixels(0.0), Pixels(value as f32)))
|
|
}
|
|
wl_pointer::Axis::HorizontalScroll => {
|
|
ScrollDelta::Pixels(Point::new(Pixels(value as f32), Pixels(0.0)))
|
|
}
|
|
_ => unimplemented!(),
|
|
},
|
|
modifiers: state.modifiers,
|
|
touch_phase: TouchPhase::Started,
|
|
}))
|
|
}
|
|
}
|
|
wl_pointer::Event::Leave { surface, .. } => {
|
|
let focused_window = &state.mouse_focused_window;
|
|
if let Some(focused_window) = focused_window {
|
|
focused_window.handle_input(PlatformInput::MouseMove(MouseMoveEvent {
|
|
position: Point::<Pixels>::default(),
|
|
pressed_button: None,
|
|
modifiers: Modifiers::default(),
|
|
}));
|
|
}
|
|
state.mouse_focused_window = None;
|
|
state.mouse_location = None;
|
|
}
|
|
_ => {}
|
|
}
|
|
}
|
|
}
|
|
|
|
impl Dispatch<wp_fractional_scale_v1::WpFractionalScaleV1, ObjectId> for WaylandClientState {
|
|
fn event(
|
|
state: &mut Self,
|
|
_: &wp_fractional_scale_v1::WpFractionalScaleV1,
|
|
event: <wp_fractional_scale_v1::WpFractionalScaleV1 as Proxy>::Event,
|
|
id: &ObjectId,
|
|
_: &Connection,
|
|
_: &QueueHandle<Self>,
|
|
) {
|
|
if let wp_fractional_scale_v1::Event::PreferredScale { scale, .. } = event {
|
|
for window in &state.windows {
|
|
if window.0.id() == *id {
|
|
window.1.rescale(scale as f32 / 120.0);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|