1use std::cell::{Ref, RefCell, RefMut};
2use std::ffi::c_void;
3use std::ptr::NonNull;
4use std::rc::Rc;
5use std::sync::Arc;
6
7use blade_graphics as gpu;
8use collections::HashMap;
9use futures::channel::oneshot::Receiver;
10
11use raw_window_handle as rwh;
12use wayland_backend::client::ObjectId;
13use wayland_client::WEnum;
14use wayland_client::{protocol::wl_surface, Proxy};
15use wayland_protocols::wp::fractional_scale::v1::client::wp_fractional_scale_v1;
16use wayland_protocols::wp::viewporter::client::wp_viewport;
17use wayland_protocols::xdg::decoration::zv1::client::zxdg_toplevel_decoration_v1;
18use wayland_protocols::xdg::shell::client::xdg_surface;
19use wayland_protocols::xdg::shell::client::xdg_toplevel::{self};
20use wayland_protocols_plasma::blur::client::org_kde_kwin_blur;
21
22use crate::platform::blade::{BladeRenderer, BladeSurfaceConfig};
23use crate::platform::linux::wayland::display::WaylandDisplay;
24use crate::platform::linux::wayland::serial::SerialKind;
25use crate::platform::{PlatformAtlas, PlatformInputHandler, PlatformWindow};
26use crate::scene::Scene;
27use crate::{
28 px, size, AnyWindowHandle, Bounds, Decorations, GPUSpecs, Globals, Modifiers, Output, Pixels,
29 PlatformDisplay, PlatformInput, Point, PromptLevel, RequestFrameOptions, ResizeEdge,
30 ScaledPixels, Size, Tiling, WaylandClientStatePtr, WindowAppearance,
31 WindowBackgroundAppearance, WindowBounds, WindowControls, WindowDecorations, WindowParams,
32};
33
34#[derive(Default)]
35pub(crate) struct Callbacks {
36 request_frame: Option<Box<dyn FnMut(RequestFrameOptions)>>,
37 input: Option<Box<dyn FnMut(crate::PlatformInput) -> crate::DispatchEventResult>>,
38 active_status_change: Option<Box<dyn FnMut(bool)>>,
39 hover_status_change: Option<Box<dyn FnMut(bool)>>,
40 resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
41 moved: Option<Box<dyn FnMut()>>,
42 should_close: Option<Box<dyn FnMut() -> bool>>,
43 close: Option<Box<dyn FnOnce()>>,
44 appearance_changed: Option<Box<dyn FnMut()>>,
45}
46
47struct RawWindow {
48 window: *mut c_void,
49 display: *mut c_void,
50}
51
52impl rwh::HasWindowHandle for RawWindow {
53 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
54 let window = NonNull::new(self.window).unwrap();
55 let handle = rwh::WaylandWindowHandle::new(window);
56 Ok(unsafe { rwh::WindowHandle::borrow_raw(handle.into()) })
57 }
58}
59impl rwh::HasDisplayHandle for RawWindow {
60 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
61 let display = NonNull::new(self.display).unwrap();
62 let handle = rwh::WaylandDisplayHandle::new(display);
63 Ok(unsafe { rwh::DisplayHandle::borrow_raw(handle.into()) })
64 }
65}
66
67#[derive(Debug)]
68struct InProgressConfigure {
69 size: Option<Size<Pixels>>,
70 fullscreen: bool,
71 maximized: bool,
72 tiling: Tiling,
73}
74
75pub struct WaylandWindowState {
76 xdg_surface: xdg_surface::XdgSurface,
77 acknowledged_first_configure: bool,
78 pub surface: wl_surface::WlSurface,
79 decoration: Option<zxdg_toplevel_decoration_v1::ZxdgToplevelDecorationV1>,
80 app_id: Option<String>,
81 appearance: WindowAppearance,
82 blur: Option<org_kde_kwin_blur::OrgKdeKwinBlur>,
83 toplevel: xdg_toplevel::XdgToplevel,
84 viewport: Option<wp_viewport::WpViewport>,
85 outputs: HashMap<ObjectId, Output>,
86 display: Option<(ObjectId, Output)>,
87 globals: Globals,
88 renderer: BladeRenderer,
89 bounds: Bounds<Pixels>,
90 scale: f32,
91 input_handler: Option<PlatformInputHandler>,
92 decorations: WindowDecorations,
93 background_appearance: WindowBackgroundAppearance,
94 fullscreen: bool,
95 maximized: bool,
96 tiling: Tiling,
97 window_bounds: Bounds<Pixels>,
98 client: WaylandClientStatePtr,
99 handle: AnyWindowHandle,
100 active: bool,
101 hovered: bool,
102 in_progress_configure: Option<InProgressConfigure>,
103 in_progress_window_controls: Option<WindowControls>,
104 window_controls: WindowControls,
105 inset: Option<Pixels>,
106}
107
108#[derive(Clone)]
109pub struct WaylandWindowStatePtr {
110 state: Rc<RefCell<WaylandWindowState>>,
111 callbacks: Rc<RefCell<Callbacks>>,
112}
113
114impl WaylandWindowState {
115 #[allow(clippy::too_many_arguments)]
116 pub(crate) fn new(
117 handle: AnyWindowHandle,
118 surface: wl_surface::WlSurface,
119 xdg_surface: xdg_surface::XdgSurface,
120 toplevel: xdg_toplevel::XdgToplevel,
121 decoration: Option<zxdg_toplevel_decoration_v1::ZxdgToplevelDecorationV1>,
122 appearance: WindowAppearance,
123 viewport: Option<wp_viewport::WpViewport>,
124 client: WaylandClientStatePtr,
125 globals: Globals,
126 options: WindowParams,
127 ) -> anyhow::Result<Self> {
128 let raw = RawWindow {
129 window: surface.id().as_ptr().cast::<c_void>(),
130 display: surface
131 .backend()
132 .upgrade()
133 .unwrap()
134 .display_ptr()
135 .cast::<c_void>(),
136 };
137 let gpu = Arc::new(
138 unsafe {
139 gpu::Context::init_windowed(
140 &raw,
141 gpu::ContextDesc {
142 validation: false,
143 capture: false,
144 overlay: false,
145 },
146 )
147 }
148 .map_err(|e| anyhow::anyhow!("{:?}", e))?,
149 );
150 let config = BladeSurfaceConfig {
151 size: gpu::Extent {
152 width: options.bounds.size.width.0 as u32,
153 height: options.bounds.size.height.0 as u32,
154 depth: 1,
155 },
156 transparent: true,
157 };
158
159 Ok(Self {
160 xdg_surface,
161 acknowledged_first_configure: false,
162 surface,
163 decoration,
164 app_id: None,
165 blur: None,
166 toplevel,
167 viewport,
168 globals,
169 outputs: HashMap::default(),
170 display: None,
171 renderer: BladeRenderer::new(gpu, config),
172 bounds: options.bounds,
173 scale: 1.0,
174 input_handler: None,
175 decorations: WindowDecorations::Client,
176 background_appearance: WindowBackgroundAppearance::Opaque,
177 fullscreen: false,
178 maximized: false,
179 tiling: Tiling::default(),
180 window_bounds: options.bounds,
181 in_progress_configure: None,
182 client,
183 appearance,
184 handle,
185 active: false,
186 hovered: false,
187 in_progress_window_controls: None,
188 window_controls: WindowControls::default(),
189 inset: None,
190 })
191 }
192
193 pub fn is_transparent(&self) -> bool {
194 self.decorations == WindowDecorations::Client
195 || self.background_appearance != WindowBackgroundAppearance::Opaque
196 }
197}
198
199pub(crate) struct WaylandWindow(pub WaylandWindowStatePtr);
200pub enum ImeInput {
201 InsertText(String),
202 SetMarkedText(String),
203 UnmarkText,
204 DeleteText,
205}
206
207impl Drop for WaylandWindow {
208 fn drop(&mut self) {
209 let mut state = self.0.state.borrow_mut();
210 let surface_id = state.surface.id();
211 let client = state.client.clone();
212
213 state.renderer.destroy();
214 if let Some(decoration) = &state.decoration {
215 decoration.destroy();
216 }
217 if let Some(blur) = &state.blur {
218 blur.release();
219 }
220 state.toplevel.destroy();
221 if let Some(viewport) = &state.viewport {
222 viewport.destroy();
223 }
224 state.xdg_surface.destroy();
225 state.surface.destroy();
226
227 let state_ptr = self.0.clone();
228 state
229 .globals
230 .executor
231 .spawn(async move {
232 state_ptr.close();
233 client.drop_window(&surface_id)
234 })
235 .detach();
236 drop(state);
237 }
238}
239
240impl WaylandWindow {
241 fn borrow(&self) -> Ref<WaylandWindowState> {
242 self.0.state.borrow()
243 }
244
245 fn borrow_mut(&self) -> RefMut<WaylandWindowState> {
246 self.0.state.borrow_mut()
247 }
248
249 pub fn new(
250 handle: AnyWindowHandle,
251 globals: Globals,
252 client: WaylandClientStatePtr,
253 params: WindowParams,
254 appearance: WindowAppearance,
255 ) -> anyhow::Result<(Self, ObjectId)> {
256 let surface = globals.compositor.create_surface(&globals.qh, ());
257 let xdg_surface = globals
258 .wm_base
259 .get_xdg_surface(&surface, &globals.qh, surface.id());
260 let toplevel = xdg_surface.get_toplevel(&globals.qh, surface.id());
261
262 if let Some(size) = params.window_min_size {
263 toplevel.set_min_size(size.width.0 as i32, size.height.0 as i32);
264 }
265
266 if let Some(fractional_scale_manager) = globals.fractional_scale_manager.as_ref() {
267 fractional_scale_manager.get_fractional_scale(&surface, &globals.qh, surface.id());
268 }
269
270 // Attempt to set up window decorations based on the requested configuration
271 let decoration = globals
272 .decoration_manager
273 .as_ref()
274 .map(|decoration_manager| {
275 decoration_manager.get_toplevel_decoration(&toplevel, &globals.qh, surface.id())
276 });
277
278 let viewport = globals
279 .viewporter
280 .as_ref()
281 .map(|viewporter| viewporter.get_viewport(&surface, &globals.qh, ()));
282
283 let this = Self(WaylandWindowStatePtr {
284 state: Rc::new(RefCell::new(WaylandWindowState::new(
285 handle,
286 surface.clone(),
287 xdg_surface,
288 toplevel,
289 decoration,
290 appearance,
291 viewport,
292 client,
293 globals,
294 params,
295 )?)),
296 callbacks: Rc::new(RefCell::new(Callbacks::default())),
297 });
298
299 // Kick things off
300 surface.commit();
301
302 Ok((this, surface.id()))
303 }
304}
305
306impl WaylandWindowStatePtr {
307 pub fn handle(&self) -> AnyWindowHandle {
308 self.state.borrow().handle
309 }
310
311 pub fn surface(&self) -> wl_surface::WlSurface {
312 self.state.borrow().surface.clone()
313 }
314
315 pub fn ptr_eq(&self, other: &Self) -> bool {
316 Rc::ptr_eq(&self.state, &other.state)
317 }
318
319 pub fn frame(&self) {
320 let mut state = self.state.borrow_mut();
321 state.surface.frame(&state.globals.qh, state.surface.id());
322 drop(state);
323
324 let mut cb = self.callbacks.borrow_mut();
325 if let Some(fun) = cb.request_frame.as_mut() {
326 fun(Default::default());
327 }
328 }
329
330 pub fn handle_xdg_surface_event(&self, event: xdg_surface::Event) {
331 match event {
332 xdg_surface::Event::Configure { serial } => {
333 {
334 let mut state = self.state.borrow_mut();
335 if let Some(window_controls) = state.in_progress_window_controls.take() {
336 state.window_controls = window_controls;
337
338 drop(state);
339 let mut callbacks = self.callbacks.borrow_mut();
340 if let Some(appearance_changed) = callbacks.appearance_changed.as_mut() {
341 appearance_changed();
342 }
343 }
344 }
345 {
346 let mut state = self.state.borrow_mut();
347
348 if let Some(mut configure) = state.in_progress_configure.take() {
349 let got_unmaximized = state.maximized && !configure.maximized;
350 state.fullscreen = configure.fullscreen;
351 state.maximized = configure.maximized;
352 state.tiling = configure.tiling;
353 if !configure.fullscreen && !configure.maximized {
354 configure.size = if got_unmaximized {
355 Some(state.window_bounds.size)
356 } else {
357 compute_outer_size(state.inset, configure.size, state.tiling)
358 };
359 if let Some(size) = configure.size {
360 state.window_bounds = Bounds {
361 origin: Point::default(),
362 size,
363 };
364 }
365 }
366 drop(state);
367 if let Some(size) = configure.size {
368 self.resize(size);
369 }
370 }
371 }
372 let mut state = self.state.borrow_mut();
373 state.xdg_surface.ack_configure(serial);
374
375 let window_geometry = inset_by_tiling(
376 state.bounds.map_origin(|_| px(0.0)),
377 state.inset.unwrap_or(px(0.0)),
378 state.tiling,
379 )
380 .map(|v| v.0 as i32)
381 .map_size(|v| if v <= 0 { 1 } else { v });
382
383 state.xdg_surface.set_window_geometry(
384 window_geometry.origin.x,
385 window_geometry.origin.y,
386 window_geometry.size.width,
387 window_geometry.size.height,
388 );
389
390 let request_frame_callback = !state.acknowledged_first_configure;
391 if request_frame_callback {
392 state.acknowledged_first_configure = true;
393 drop(state);
394 self.frame();
395 }
396 }
397 _ => {}
398 }
399 }
400
401 pub fn handle_toplevel_decoration_event(&self, event: zxdg_toplevel_decoration_v1::Event) {
402 match event {
403 zxdg_toplevel_decoration_v1::Event::Configure { mode } => match mode {
404 WEnum::Value(zxdg_toplevel_decoration_v1::Mode::ServerSide) => {
405 self.state.borrow_mut().decorations = WindowDecorations::Server;
406 if let Some(mut appearance_changed) =
407 self.callbacks.borrow_mut().appearance_changed.as_mut()
408 {
409 appearance_changed();
410 }
411 }
412 WEnum::Value(zxdg_toplevel_decoration_v1::Mode::ClientSide) => {
413 self.state.borrow_mut().decorations = WindowDecorations::Client;
414 // Update background to be transparent
415 if let Some(mut appearance_changed) =
416 self.callbacks.borrow_mut().appearance_changed.as_mut()
417 {
418 appearance_changed();
419 }
420 }
421 WEnum::Value(_) => {
422 log::warn!("Unknown decoration mode");
423 }
424 WEnum::Unknown(v) => {
425 log::warn!("Unknown decoration mode: {}", v);
426 }
427 },
428 _ => {}
429 }
430 }
431
432 pub fn handle_fractional_scale_event(&self, event: wp_fractional_scale_v1::Event) {
433 match event {
434 wp_fractional_scale_v1::Event::PreferredScale { scale } => {
435 self.rescale(scale as f32 / 120.0);
436 }
437 _ => {}
438 }
439 }
440
441 pub fn handle_toplevel_event(&self, event: xdg_toplevel::Event) -> bool {
442 match event {
443 xdg_toplevel::Event::Configure {
444 width,
445 height,
446 states,
447 } => {
448 let mut size = if width == 0 || height == 0 {
449 None
450 } else {
451 Some(size(px(width as f32), px(height as f32)))
452 };
453
454 let states = extract_states::<xdg_toplevel::State>(&states);
455
456 let mut tiling = Tiling::default();
457 let mut fullscreen = false;
458 let mut maximized = false;
459
460 for state in states {
461 match state {
462 xdg_toplevel::State::Maximized => {
463 maximized = true;
464 }
465 xdg_toplevel::State::Fullscreen => {
466 fullscreen = true;
467 }
468 xdg_toplevel::State::TiledTop => {
469 tiling.top = true;
470 }
471 xdg_toplevel::State::TiledLeft => {
472 tiling.left = true;
473 }
474 xdg_toplevel::State::TiledRight => {
475 tiling.right = true;
476 }
477 xdg_toplevel::State::TiledBottom => {
478 tiling.bottom = true;
479 }
480 _ => {
481 // noop
482 }
483 }
484 }
485
486 if fullscreen || maximized {
487 tiling = Tiling::tiled();
488 }
489
490 let mut state = self.state.borrow_mut();
491 state.in_progress_configure = Some(InProgressConfigure {
492 size,
493 fullscreen,
494 maximized,
495 tiling,
496 });
497
498 false
499 }
500 xdg_toplevel::Event::Close => {
501 let mut cb = self.callbacks.borrow_mut();
502 if let Some(mut should_close) = cb.should_close.take() {
503 let result = (should_close)();
504 cb.should_close = Some(should_close);
505 if result {
506 drop(cb);
507 self.close();
508 }
509 result
510 } else {
511 true
512 }
513 }
514 xdg_toplevel::Event::WmCapabilities { capabilities } => {
515 let mut window_controls = WindowControls::default();
516
517 let states = extract_states::<xdg_toplevel::WmCapabilities>(&capabilities);
518
519 for state in states {
520 match state {
521 xdg_toplevel::WmCapabilities::Maximize => {
522 window_controls.maximize = true;
523 }
524 xdg_toplevel::WmCapabilities::Minimize => {
525 window_controls.minimize = true;
526 }
527 xdg_toplevel::WmCapabilities::Fullscreen => {
528 window_controls.fullscreen = true;
529 }
530 xdg_toplevel::WmCapabilities::WindowMenu => {
531 window_controls.window_menu = true;
532 }
533 _ => {}
534 }
535 }
536
537 let mut state = self.state.borrow_mut();
538 state.in_progress_window_controls = Some(window_controls);
539 false
540 }
541 _ => false,
542 }
543 }
544
545 #[allow(clippy::mutable_key_type)]
546 pub fn handle_surface_event(
547 &self,
548 event: wl_surface::Event,
549 outputs: HashMap<ObjectId, Output>,
550 ) {
551 let mut state = self.state.borrow_mut();
552
553 match event {
554 wl_surface::Event::Enter { output } => {
555 let id = output.id();
556
557 let Some(output) = outputs.get(&id) else {
558 return;
559 };
560
561 state.outputs.insert(id, output.clone());
562
563 let scale = primary_output_scale(&mut state);
564
565 // We use `PreferredBufferScale` instead to set the scale if it's available
566 if state.surface.version() < wl_surface::EVT_PREFERRED_BUFFER_SCALE_SINCE {
567 state.surface.set_buffer_scale(scale);
568 drop(state);
569 self.rescale(scale as f32);
570 }
571 }
572 wl_surface::Event::Leave { output } => {
573 state.outputs.remove(&output.id());
574
575 let scale = primary_output_scale(&mut state);
576
577 // We use `PreferredBufferScale` instead to set the scale if it's available
578 if state.surface.version() < wl_surface::EVT_PREFERRED_BUFFER_SCALE_SINCE {
579 state.surface.set_buffer_scale(scale);
580 drop(state);
581 self.rescale(scale as f32);
582 }
583 }
584 wl_surface::Event::PreferredBufferScale { factor } => {
585 // We use `WpFractionalScale` instead to set the scale if it's available
586 if state.globals.fractional_scale_manager.is_none() {
587 state.surface.set_buffer_scale(factor);
588 drop(state);
589 self.rescale(factor as f32);
590 }
591 }
592 _ => {}
593 }
594 }
595
596 pub fn handle_ime(&self, ime: ImeInput) {
597 let mut state = self.state.borrow_mut();
598 if let Some(mut input_handler) = state.input_handler.take() {
599 drop(state);
600 match ime {
601 ImeInput::InsertText(text) => {
602 input_handler.replace_text_in_range(None, &text);
603 }
604 ImeInput::SetMarkedText(text) => {
605 input_handler.replace_and_mark_text_in_range(None, &text, None);
606 }
607 ImeInput::UnmarkText => {
608 input_handler.unmark_text();
609 }
610 ImeInput::DeleteText => {
611 if let Some(marked) = input_handler.marked_text_range() {
612 input_handler.replace_text_in_range(Some(marked), "");
613 }
614 }
615 }
616 self.state.borrow_mut().input_handler = Some(input_handler);
617 }
618 }
619
620 pub fn get_ime_area(&self) -> Option<Bounds<Pixels>> {
621 let mut state = self.state.borrow_mut();
622 let mut bounds: Option<Bounds<Pixels>> = None;
623 if let Some(mut input_handler) = state.input_handler.take() {
624 drop(state);
625 if let Some(selection) = input_handler.selected_text_range(true) {
626 bounds = input_handler.bounds_for_range(if selection.reversed {
627 selection.range.start..selection.range.start
628 } else {
629 selection.range.end..selection.range.end
630 });
631 }
632 self.state.borrow_mut().input_handler = Some(input_handler);
633 }
634 bounds
635 }
636
637 pub fn set_size_and_scale(&self, size: Option<Size<Pixels>>, scale: Option<f32>) {
638 let (size, scale) = {
639 let mut state = self.state.borrow_mut();
640 if size.map_or(true, |size| size == state.bounds.size)
641 && scale.map_or(true, |scale| scale == state.scale)
642 {
643 return;
644 }
645 if let Some(size) = size {
646 state.bounds.size = size;
647 }
648 if let Some(scale) = scale {
649 state.scale = scale;
650 }
651 let device_bounds = state.bounds.to_device_pixels(state.scale);
652 state.renderer.update_drawable_size(device_bounds.size);
653 (state.bounds.size, state.scale)
654 };
655
656 if let Some(ref mut fun) = self.callbacks.borrow_mut().resize {
657 fun(size, scale);
658 }
659
660 {
661 let state = self.state.borrow();
662 if let Some(viewport) = &state.viewport {
663 viewport.set_destination(size.width.0 as i32, size.height.0 as i32);
664 }
665 }
666 }
667
668 pub fn resize(&self, size: Size<Pixels>) {
669 self.set_size_and_scale(Some(size), None);
670 }
671
672 pub fn rescale(&self, scale: f32) {
673 self.set_size_and_scale(None, Some(scale));
674 }
675
676 pub fn close(&self) {
677 let mut callbacks = self.callbacks.borrow_mut();
678 if let Some(fun) = callbacks.close.take() {
679 fun()
680 }
681 }
682
683 pub fn handle_input(&self, input: PlatformInput) {
684 if let Some(ref mut fun) = self.callbacks.borrow_mut().input {
685 if !fun(input.clone()).propagate {
686 return;
687 }
688 }
689 if let PlatformInput::KeyDown(event) = input {
690 if let Some(key_char) = &event.keystroke.key_char {
691 let mut state = self.state.borrow_mut();
692 if let Some(mut input_handler) = state.input_handler.take() {
693 drop(state);
694 input_handler.replace_text_in_range(None, key_char);
695 self.state.borrow_mut().input_handler = Some(input_handler);
696 }
697 }
698 }
699 }
700
701 pub fn set_focused(&self, focus: bool) {
702 self.state.borrow_mut().active = focus;
703 if let Some(ref mut fun) = self.callbacks.borrow_mut().active_status_change {
704 fun(focus);
705 }
706 }
707
708 pub fn set_hovered(&self, focus: bool) {
709 if let Some(ref mut fun) = self.callbacks.borrow_mut().hover_status_change {
710 fun(focus);
711 }
712 }
713
714 pub fn set_appearance(&mut self, appearance: WindowAppearance) {
715 self.state.borrow_mut().appearance = appearance;
716
717 let mut callbacks = self.callbacks.borrow_mut();
718 if let Some(ref mut fun) = callbacks.appearance_changed {
719 (fun)()
720 }
721 }
722}
723
724fn extract_states<'a, S: TryFrom<u32> + 'a>(states: &'a [u8]) -> impl Iterator<Item = S> + 'a
725where
726 <S as TryFrom<u32>>::Error: 'a,
727{
728 states
729 .chunks_exact(4)
730 .flat_map(TryInto::<[u8; 4]>::try_into)
731 .map(u32::from_ne_bytes)
732 .flat_map(S::try_from)
733}
734
735fn primary_output_scale(state: &mut RefMut<WaylandWindowState>) -> i32 {
736 let mut scale = 1;
737 let mut current_output = state.display.take();
738 for (id, output) in state.outputs.iter() {
739 if let Some((_, output_data)) = ¤t_output {
740 if output.scale > output_data.scale {
741 current_output = Some((id.clone(), output.clone()));
742 }
743 } else {
744 current_output = Some((id.clone(), output.clone()));
745 }
746 scale = scale.max(output.scale);
747 }
748 state.display = current_output;
749 scale
750}
751
752impl rwh::HasWindowHandle for WaylandWindow {
753 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
754 unimplemented!()
755 }
756}
757impl rwh::HasDisplayHandle for WaylandWindow {
758 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
759 unimplemented!()
760 }
761}
762
763impl PlatformWindow for WaylandWindow {
764 fn bounds(&self) -> Bounds<Pixels> {
765 self.borrow().bounds
766 }
767
768 fn is_maximized(&self) -> bool {
769 self.borrow().maximized
770 }
771
772 fn window_bounds(&self) -> WindowBounds {
773 let state = self.borrow();
774 if state.fullscreen {
775 WindowBounds::Fullscreen(state.window_bounds)
776 } else if state.maximized {
777 WindowBounds::Maximized(state.window_bounds)
778 } else {
779 drop(state);
780 WindowBounds::Windowed(self.bounds())
781 }
782 }
783
784 fn content_size(&self) -> Size<Pixels> {
785 self.borrow().bounds.size
786 }
787
788 fn scale_factor(&self) -> f32 {
789 self.borrow().scale
790 }
791
792 fn appearance(&self) -> WindowAppearance {
793 self.borrow().appearance
794 }
795
796 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
797 let state = self.borrow();
798 state.display.as_ref().map(|(id, display)| {
799 Rc::new(WaylandDisplay {
800 id: id.clone(),
801 name: display.name.clone(),
802 bounds: display.bounds.to_pixels(state.scale),
803 }) as Rc<dyn PlatformDisplay>
804 })
805 }
806
807 fn mouse_position(&self) -> Point<Pixels> {
808 self.borrow()
809 .client
810 .get_client()
811 .borrow()
812 .mouse_location
813 .unwrap_or_default()
814 }
815
816 fn modifiers(&self) -> Modifiers {
817 self.borrow().client.get_client().borrow().modifiers
818 }
819
820 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
821 self.borrow_mut().input_handler = Some(input_handler);
822 }
823
824 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
825 self.borrow_mut().input_handler.take()
826 }
827
828 fn prompt(
829 &self,
830 _level: PromptLevel,
831 _msg: &str,
832 _detail: Option<&str>,
833 _answers: &[&str],
834 ) -> Option<Receiver<usize>> {
835 None
836 }
837
838 fn activate(&self) {
839 // Try to request an activation token. Even though the activation is likely going to be rejected,
840 // KWin and Mutter can use the app_id to visually indicate we're requesting attention.
841 let state = self.borrow();
842 if let (Some(activation), Some(app_id)) = (&state.globals.activation, state.app_id.clone())
843 {
844 state.client.set_pending_activation(state.surface.id());
845 let token = activation.get_activation_token(&state.globals.qh, ());
846 // The serial isn't exactly important here, since the activation is probably going to be rejected anyway.
847 let serial = state.client.get_serial(SerialKind::MousePress);
848 token.set_app_id(app_id);
849 token.set_serial(serial, &state.globals.seat);
850 token.set_surface(&state.surface);
851 token.commit();
852 }
853 }
854
855 fn is_active(&self) -> bool {
856 self.borrow().active
857 }
858
859 fn is_hovered(&self) -> bool {
860 self.borrow().hovered
861 }
862
863 fn set_title(&mut self, title: &str) {
864 self.borrow().toplevel.set_title(title.to_string());
865 }
866
867 fn set_app_id(&mut self, app_id: &str) {
868 let mut state = self.borrow_mut();
869 state.toplevel.set_app_id(app_id.to_owned());
870 state.app_id = Some(app_id.to_owned());
871 }
872
873 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
874 let mut state = self.borrow_mut();
875 state.background_appearance = background_appearance;
876 update_window(state);
877 }
878
879 fn minimize(&self) {
880 self.borrow().toplevel.set_minimized();
881 }
882
883 fn zoom(&self) {
884 let state = self.borrow();
885 if !state.maximized {
886 state.toplevel.set_maximized();
887 } else {
888 state.toplevel.unset_maximized();
889 }
890 }
891
892 fn toggle_fullscreen(&self) {
893 let mut state = self.borrow_mut();
894 if !state.fullscreen {
895 state.toplevel.set_fullscreen(None);
896 } else {
897 state.toplevel.unset_fullscreen();
898 }
899 }
900
901 fn is_fullscreen(&self) -> bool {
902 self.borrow().fullscreen
903 }
904
905 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
906 self.0.callbacks.borrow_mut().request_frame = Some(callback);
907 }
908
909 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>) {
910 self.0.callbacks.borrow_mut().input = Some(callback);
911 }
912
913 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
914 self.0.callbacks.borrow_mut().active_status_change = Some(callback);
915 }
916
917 fn on_hover_status_change(&self, callback: Box<dyn FnMut(bool)>) {
918 self.0.callbacks.borrow_mut().hover_status_change = Some(callback);
919 }
920
921 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
922 self.0.callbacks.borrow_mut().resize = Some(callback);
923 }
924
925 fn on_moved(&self, callback: Box<dyn FnMut()>) {
926 self.0.callbacks.borrow_mut().moved = Some(callback);
927 }
928
929 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
930 self.0.callbacks.borrow_mut().should_close = Some(callback);
931 }
932
933 fn on_close(&self, callback: Box<dyn FnOnce()>) {
934 self.0.callbacks.borrow_mut().close = Some(callback);
935 }
936
937 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
938 self.0.callbacks.borrow_mut().appearance_changed = Some(callback);
939 }
940
941 fn draw(&self, scene: &Scene) {
942 let mut state = self.borrow_mut();
943 state.renderer.draw(scene);
944 }
945
946 fn completed_frame(&self) {
947 let state = self.borrow();
948 state.surface.commit();
949 }
950
951 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
952 let state = self.borrow();
953 state.renderer.sprite_atlas().clone()
954 }
955
956 fn show_window_menu(&self, position: Point<Pixels>) {
957 let state = self.borrow();
958 let serial = state.client.get_serial(SerialKind::MousePress);
959 state.toplevel.show_window_menu(
960 &state.globals.seat,
961 serial,
962 position.x.0 as i32,
963 position.y.0 as i32,
964 );
965 }
966
967 fn start_window_move(&self) {
968 let state = self.borrow();
969 let serial = state.client.get_serial(SerialKind::MousePress);
970 state.toplevel._move(&state.globals.seat, serial);
971 }
972
973 fn start_window_resize(&self, edge: crate::ResizeEdge) {
974 let state = self.borrow();
975 state.toplevel.resize(
976 &state.globals.seat,
977 state.client.get_serial(SerialKind::MousePress),
978 edge.to_xdg(),
979 )
980 }
981
982 fn window_decorations(&self) -> Decorations {
983 let state = self.borrow();
984 match state.decorations {
985 WindowDecorations::Server => Decorations::Server,
986 WindowDecorations::Client => Decorations::Client {
987 tiling: state.tiling,
988 },
989 }
990 }
991
992 fn request_decorations(&self, decorations: WindowDecorations) {
993 let mut state = self.borrow_mut();
994 state.decorations = decorations;
995 if let Some(decoration) = state.decoration.as_ref() {
996 decoration.set_mode(decorations.to_xdg());
997 update_window(state);
998 }
999 }
1000
1001 fn window_controls(&self) -> WindowControls {
1002 self.borrow().window_controls
1003 }
1004
1005 fn set_client_inset(&self, inset: Pixels) {
1006 let mut state = self.borrow_mut();
1007 if Some(inset) != state.inset {
1008 state.inset = Some(inset);
1009 update_window(state);
1010 }
1011 }
1012
1013 fn update_ime_position(&self, bounds: Bounds<ScaledPixels>) {
1014 let state = self.borrow();
1015 state.client.update_ime_position(bounds);
1016 }
1017
1018 fn gpu_specs(&self) -> Option<GPUSpecs> {
1019 self.borrow().renderer.gpu_specs().into()
1020 }
1021}
1022
1023fn update_window(mut state: RefMut<WaylandWindowState>) {
1024 let opaque = !state.is_transparent();
1025
1026 state.renderer.update_transparency(!opaque);
1027 let mut opaque_area = state.window_bounds.map(|v| v.0 as i32);
1028 if let Some(inset) = state.inset {
1029 opaque_area.inset(inset.0 as i32);
1030 }
1031
1032 let region = state
1033 .globals
1034 .compositor
1035 .create_region(&state.globals.qh, ());
1036 region.add(
1037 opaque_area.origin.x,
1038 opaque_area.origin.y,
1039 opaque_area.size.width,
1040 opaque_area.size.height,
1041 );
1042
1043 // Note that rounded corners make this rectangle API hard to work with.
1044 // As this is common when using CSD, let's just disable this API.
1045 if state.background_appearance == WindowBackgroundAppearance::Opaque
1046 && state.decorations == WindowDecorations::Server
1047 {
1048 // Promise the compositor that this region of the window surface
1049 // contains no transparent pixels. This allows the compositor to skip
1050 // updating whatever is behind the surface for better performance.
1051 state.surface.set_opaque_region(Some(®ion));
1052 } else {
1053 state.surface.set_opaque_region(None);
1054 }
1055
1056 if let Some(ref blur_manager) = state.globals.blur_manager {
1057 if state.background_appearance == WindowBackgroundAppearance::Blurred {
1058 if state.blur.is_none() {
1059 let blur = blur_manager.create(&state.surface, &state.globals.qh, ());
1060 state.blur = Some(blur);
1061 }
1062 state.blur.as_ref().unwrap().commit();
1063 } else {
1064 // It probably doesn't hurt to clear the blur for opaque windows
1065 blur_manager.unset(&state.surface);
1066 if let Some(b) = state.blur.take() {
1067 b.release()
1068 }
1069 }
1070 }
1071
1072 region.destroy();
1073}
1074
1075impl WindowDecorations {
1076 fn to_xdg(&self) -> zxdg_toplevel_decoration_v1::Mode {
1077 match self {
1078 WindowDecorations::Client => zxdg_toplevel_decoration_v1::Mode::ClientSide,
1079 WindowDecorations::Server => zxdg_toplevel_decoration_v1::Mode::ServerSide,
1080 }
1081 }
1082}
1083
1084impl ResizeEdge {
1085 fn to_xdg(&self) -> xdg_toplevel::ResizeEdge {
1086 match self {
1087 ResizeEdge::Top => xdg_toplevel::ResizeEdge::Top,
1088 ResizeEdge::TopRight => xdg_toplevel::ResizeEdge::TopRight,
1089 ResizeEdge::Right => xdg_toplevel::ResizeEdge::Right,
1090 ResizeEdge::BottomRight => xdg_toplevel::ResizeEdge::BottomRight,
1091 ResizeEdge::Bottom => xdg_toplevel::ResizeEdge::Bottom,
1092 ResizeEdge::BottomLeft => xdg_toplevel::ResizeEdge::BottomLeft,
1093 ResizeEdge::Left => xdg_toplevel::ResizeEdge::Left,
1094 ResizeEdge::TopLeft => xdg_toplevel::ResizeEdge::TopLeft,
1095 }
1096 }
1097}
1098
1099/// The configuration event is in terms of the window geometry, which we are constantly
1100/// updating to account for the client decorations. But that's not the area we want to render
1101/// to, due to our intrusize CSD. So, here we calculate the 'actual' size, by adding back in the insets
1102fn compute_outer_size(
1103 inset: Option<Pixels>,
1104 new_size: Option<Size<Pixels>>,
1105 tiling: Tiling,
1106) -> Option<Size<Pixels>> {
1107 let Some(inset) = inset else { return new_size };
1108
1109 new_size.map(|mut new_size| {
1110 if !tiling.top {
1111 new_size.height += inset;
1112 }
1113 if !tiling.bottom {
1114 new_size.height += inset;
1115 }
1116 if !tiling.left {
1117 new_size.width += inset;
1118 }
1119 if !tiling.right {
1120 new_size.width += inset;
1121 }
1122
1123 new_size
1124 })
1125}
1126
1127fn inset_by_tiling(mut bounds: Bounds<Pixels>, inset: Pixels, tiling: Tiling) -> Bounds<Pixels> {
1128 if !tiling.top {
1129 bounds.origin.y += inset;
1130 bounds.size.height -= inset;
1131 }
1132 if !tiling.bottom {
1133 bounds.size.height -= inset;
1134 }
1135 if !tiling.left {
1136 bounds.origin.x += inset;
1137 bounds.size.width -= inset;
1138 }
1139 if !tiling.right {
1140 bounds.size.width -= inset;
1141 }
1142
1143 bounds
1144}