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;
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, ResizeEdge, Size, Tiling,
30 WaylandClientStatePtr, WindowAppearance, WindowBackgroundAppearance, WindowBounds,
31 WindowControls, WindowDecorations, WindowParams,
32};
33
34#[derive(Default)]
35pub(crate) struct Callbacks {
36 request_frame: Option<Box<dyn FnMut()>>,
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();
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(range) = input_handler.selected_text_range() {
626 bounds = input_handler.bounds_for_range(range);
627 }
628 self.state.borrow_mut().input_handler = Some(input_handler);
629 }
630 bounds
631 }
632
633 pub fn set_size_and_scale(&self, size: Option<Size<Pixels>>, scale: Option<f32>) {
634 let (size, scale) = {
635 let mut state = self.state.borrow_mut();
636 if size.map_or(true, |size| size == state.bounds.size)
637 && scale.map_or(true, |scale| scale == state.scale)
638 {
639 return;
640 }
641 if let Some(size) = size {
642 state.bounds.size = size;
643 }
644 if let Some(scale) = scale {
645 state.scale = scale;
646 }
647 let device_bounds = state.bounds.to_device_pixels(state.scale);
648 state.renderer.update_drawable_size(device_bounds.size);
649 (state.bounds.size, state.scale)
650 };
651
652 if let Some(ref mut fun) = self.callbacks.borrow_mut().resize {
653 fun(size, scale);
654 }
655
656 {
657 let state = self.state.borrow();
658 if let Some(viewport) = &state.viewport {
659 viewport.set_destination(size.width.0 as i32, size.height.0 as i32);
660 }
661 }
662 }
663
664 pub fn resize(&self, size: Size<Pixels>) {
665 self.set_size_and_scale(Some(size), None);
666 }
667
668 pub fn rescale(&self, scale: f32) {
669 self.set_size_and_scale(None, Some(scale));
670 }
671
672 pub fn close(&self) {
673 let mut callbacks = self.callbacks.borrow_mut();
674 if let Some(fun) = callbacks.close.take() {
675 fun()
676 }
677 }
678
679 pub fn handle_input(&self, input: PlatformInput) {
680 if let Some(ref mut fun) = self.callbacks.borrow_mut().input {
681 if !fun(input.clone()).propagate {
682 return;
683 }
684 }
685 if let PlatformInput::KeyDown(event) = input {
686 if let Some(ime_key) = &event.keystroke.ime_key {
687 let mut state = self.state.borrow_mut();
688 if let Some(mut input_handler) = state.input_handler.take() {
689 drop(state);
690 input_handler.replace_text_in_range(None, ime_key);
691 self.state.borrow_mut().input_handler = Some(input_handler);
692 }
693 }
694 }
695 }
696
697 pub fn set_focused(&self, focus: bool) {
698 self.state.borrow_mut().active = focus;
699 if let Some(ref mut fun) = self.callbacks.borrow_mut().active_status_change {
700 fun(focus);
701 }
702 }
703
704 pub fn set_hovered(&self, focus: bool) {
705 if let Some(ref mut fun) = self.callbacks.borrow_mut().hover_status_change {
706 fun(focus);
707 }
708 }
709
710 pub fn set_appearance(&mut self, appearance: WindowAppearance) {
711 self.state.borrow_mut().appearance = appearance;
712
713 let mut callbacks = self.callbacks.borrow_mut();
714 if let Some(ref mut fun) = callbacks.appearance_changed {
715 (fun)()
716 }
717 }
718}
719
720fn extract_states<'a, S: TryFrom<u32> + 'a>(states: &'a [u8]) -> impl Iterator<Item = S> + 'a
721where
722 <S as TryFrom<u32>>::Error: 'a,
723{
724 states
725 .chunks_exact(4)
726 .flat_map(TryInto::<[u8; 4]>::try_into)
727 .map(u32::from_ne_bytes)
728 .flat_map(S::try_from)
729}
730
731fn primary_output_scale(state: &mut RefMut<WaylandWindowState>) -> i32 {
732 let mut scale = 1;
733 let mut current_output = state.display.take();
734 for (id, output) in state.outputs.iter() {
735 if let Some((_, output_data)) = ¤t_output {
736 if output.scale > output_data.scale {
737 current_output = Some((id.clone(), output.clone()));
738 }
739 } else {
740 current_output = Some((id.clone(), output.clone()));
741 }
742 scale = scale.max(output.scale);
743 }
744 state.display = current_output;
745 scale
746}
747
748impl rwh::HasWindowHandle for WaylandWindow {
749 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
750 unimplemented!()
751 }
752}
753impl rwh::HasDisplayHandle for WaylandWindow {
754 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
755 unimplemented!()
756 }
757}
758
759impl PlatformWindow for WaylandWindow {
760 fn bounds(&self) -> Bounds<Pixels> {
761 self.borrow().bounds
762 }
763
764 fn is_maximized(&self) -> bool {
765 self.borrow().maximized
766 }
767
768 fn window_bounds(&self) -> WindowBounds {
769 let state = self.borrow();
770 if state.fullscreen {
771 WindowBounds::Fullscreen(state.window_bounds)
772 } else if state.maximized {
773 WindowBounds::Maximized(state.window_bounds)
774 } else {
775 drop(state);
776 WindowBounds::Windowed(self.bounds())
777 }
778 }
779
780 fn content_size(&self) -> Size<Pixels> {
781 self.borrow().bounds.size
782 }
783
784 fn scale_factor(&self) -> f32 {
785 self.borrow().scale
786 }
787
788 fn appearance(&self) -> WindowAppearance {
789 self.borrow().appearance
790 }
791
792 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
793 let state = self.borrow();
794 state.display.as_ref().map(|(id, display)| {
795 Rc::new(WaylandDisplay {
796 id: id.clone(),
797 name: display.name.clone(),
798 bounds: display.bounds.to_pixels(state.scale),
799 }) as Rc<dyn PlatformDisplay>
800 })
801 }
802
803 fn mouse_position(&self) -> Point<Pixels> {
804 self.borrow()
805 .client
806 .get_client()
807 .borrow()
808 .mouse_location
809 .unwrap_or_default()
810 }
811
812 fn modifiers(&self) -> Modifiers {
813 self.borrow().client.get_client().borrow().modifiers
814 }
815
816 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
817 self.borrow_mut().input_handler = Some(input_handler);
818 }
819
820 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
821 self.borrow_mut().input_handler.take()
822 }
823
824 fn prompt(
825 &self,
826 _level: PromptLevel,
827 _msg: &str,
828 _detail: Option<&str>,
829 _answers: &[&str],
830 ) -> Option<oneshot::Receiver<usize>> {
831 None
832 }
833
834 fn activate(&self) {
835 // Try to request an activation token. Even though the activation is likely going to be rejected,
836 // KWin and Mutter can use the app_id to visually indicate we're requesting attention.
837 let state = self.borrow();
838 if let (Some(activation), Some(app_id)) = (&state.globals.activation, state.app_id.clone())
839 {
840 state.client.set_pending_activation(state.surface.id());
841 let token = activation.get_activation_token(&state.globals.qh, ());
842 // The serial isn't exactly important here, since the activation is probably going to be rejected anyway.
843 let serial = state.client.get_serial(SerialKind::MousePress);
844 token.set_app_id(app_id);
845 token.set_serial(serial, &state.globals.seat);
846 token.set_surface(&state.surface);
847 token.commit();
848 }
849 }
850
851 fn is_active(&self) -> bool {
852 self.borrow().active
853 }
854
855 fn is_hovered(&self) -> bool {
856 self.borrow().hovered
857 }
858
859 fn set_title(&mut self, title: &str) {
860 self.borrow().toplevel.set_title(title.to_string());
861 }
862
863 fn set_app_id(&mut self, app_id: &str) {
864 let mut state = self.borrow_mut();
865 state.toplevel.set_app_id(app_id.to_owned());
866 state.app_id = Some(app_id.to_owned());
867 }
868
869 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
870 let mut state = self.borrow_mut();
871 state.background_appearance = background_appearance;
872 update_window(state);
873 }
874
875 fn minimize(&self) {
876 self.borrow().toplevel.set_minimized();
877 }
878
879 fn zoom(&self) {
880 let state = self.borrow();
881 if !state.maximized {
882 state.toplevel.set_maximized();
883 } else {
884 state.toplevel.unset_maximized();
885 }
886 }
887
888 fn toggle_fullscreen(&self) {
889 let mut state = self.borrow_mut();
890 if !state.fullscreen {
891 state.toplevel.set_fullscreen(None);
892 } else {
893 state.toplevel.unset_fullscreen();
894 }
895 }
896
897 fn is_fullscreen(&self) -> bool {
898 self.borrow().fullscreen
899 }
900
901 fn on_request_frame(&self, callback: Box<dyn FnMut()>) {
902 self.0.callbacks.borrow_mut().request_frame = Some(callback);
903 }
904
905 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>) {
906 self.0.callbacks.borrow_mut().input = Some(callback);
907 }
908
909 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
910 self.0.callbacks.borrow_mut().active_status_change = Some(callback);
911 }
912
913 fn on_hover_status_change(&self, callback: Box<dyn FnMut(bool)>) {
914 self.0.callbacks.borrow_mut().hover_status_change = Some(callback);
915 }
916
917 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
918 self.0.callbacks.borrow_mut().resize = Some(callback);
919 }
920
921 fn on_moved(&self, callback: Box<dyn FnMut()>) {
922 self.0.callbacks.borrow_mut().moved = Some(callback);
923 }
924
925 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
926 self.0.callbacks.borrow_mut().should_close = Some(callback);
927 }
928
929 fn on_close(&self, callback: Box<dyn FnOnce()>) {
930 self.0.callbacks.borrow_mut().close = Some(callback);
931 }
932
933 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
934 self.0.callbacks.borrow_mut().appearance_changed = Some(callback);
935 }
936
937 fn draw(&self, scene: &Scene, on_complete: Option<oneshot::Sender<()>>) {
938 let mut state = self.borrow_mut();
939 state.renderer.draw(scene, on_complete);
940 }
941
942 fn completed_frame(&self) {
943 let state = self.borrow();
944 state.surface.commit();
945 }
946
947 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
948 let state = self.borrow();
949 state.renderer.sprite_atlas().clone()
950 }
951
952 fn show_window_menu(&self, position: Point<Pixels>) {
953 let state = self.borrow();
954 let serial = state.client.get_serial(SerialKind::MousePress);
955 state.toplevel.show_window_menu(
956 &state.globals.seat,
957 serial,
958 position.x.0 as i32,
959 position.y.0 as i32,
960 );
961 }
962
963 fn start_window_move(&self) {
964 let state = self.borrow();
965 let serial = state.client.get_serial(SerialKind::MousePress);
966 state.toplevel._move(&state.globals.seat, serial);
967 }
968
969 fn start_window_resize(&self, edge: crate::ResizeEdge) {
970 let state = self.borrow();
971 state.toplevel.resize(
972 &state.globals.seat,
973 state.client.get_serial(SerialKind::MousePress),
974 edge.to_xdg(),
975 )
976 }
977
978 fn window_decorations(&self) -> Decorations {
979 let state = self.borrow();
980 match state.decorations {
981 WindowDecorations::Server => Decorations::Server,
982 WindowDecorations::Client => Decorations::Client {
983 tiling: state.tiling,
984 },
985 }
986 }
987
988 fn request_decorations(&self, decorations: WindowDecorations) {
989 let mut state = self.borrow_mut();
990 state.decorations = decorations;
991 if let Some(decoration) = state.decoration.as_ref() {
992 decoration.set_mode(decorations.to_xdg());
993 update_window(state);
994 }
995 }
996
997 fn window_controls(&self) -> WindowControls {
998 self.borrow().window_controls
999 }
1000
1001 fn set_client_inset(&self, inset: Pixels) {
1002 let mut state = self.borrow_mut();
1003 if Some(inset) != state.inset {
1004 state.inset = Some(inset);
1005 update_window(state);
1006 }
1007 }
1008
1009 fn gpu_specs(&self) -> Option<GPUSpecs> {
1010 self.borrow().renderer.gpu_specs().into()
1011 }
1012
1013 fn fps(&self) -> Option<f32> {
1014 None
1015 }
1016}
1017
1018fn update_window(mut state: RefMut<WaylandWindowState>) {
1019 let opaque = !state.is_transparent();
1020
1021 state.renderer.update_transparency(!opaque);
1022 let mut opaque_area = state.window_bounds.map(|v| v.0 as i32);
1023 if let Some(inset) = state.inset {
1024 opaque_area.inset(inset.0 as i32);
1025 }
1026
1027 let region = state
1028 .globals
1029 .compositor
1030 .create_region(&state.globals.qh, ());
1031 region.add(
1032 opaque_area.origin.x,
1033 opaque_area.origin.y,
1034 opaque_area.size.width,
1035 opaque_area.size.height,
1036 );
1037
1038 // Note that rounded corners make this rectangle API hard to work with.
1039 // As this is common when using CSD, let's just disable this API.
1040 if state.background_appearance == WindowBackgroundAppearance::Opaque
1041 && state.decorations == WindowDecorations::Server
1042 {
1043 // Promise the compositor that this region of the window surface
1044 // contains no transparent pixels. This allows the compositor to
1045 // do skip whatever is behind the surface for better performance.
1046 state.surface.set_opaque_region(Some(®ion));
1047 } else {
1048 state.surface.set_opaque_region(None);
1049 }
1050
1051 if let Some(ref blur_manager) = state.globals.blur_manager {
1052 if state.background_appearance == WindowBackgroundAppearance::Blurred {
1053 if state.blur.is_none() {
1054 let blur = blur_manager.create(&state.surface, &state.globals.qh, ());
1055 blur.set_region(Some(®ion));
1056 state.blur = Some(blur);
1057 }
1058 state.blur.as_ref().unwrap().commit();
1059 } else {
1060 // It probably doesn't hurt to clear the blur for opaque windows
1061 blur_manager.unset(&state.surface);
1062 if let Some(b) = state.blur.take() {
1063 b.release()
1064 }
1065 }
1066 }
1067
1068 region.destroy();
1069}
1070
1071impl WindowDecorations {
1072 fn to_xdg(&self) -> zxdg_toplevel_decoration_v1::Mode {
1073 match self {
1074 WindowDecorations::Client => zxdg_toplevel_decoration_v1::Mode::ClientSide,
1075 WindowDecorations::Server => zxdg_toplevel_decoration_v1::Mode::ServerSide,
1076 }
1077 }
1078}
1079
1080impl ResizeEdge {
1081 fn to_xdg(&self) -> xdg_toplevel::ResizeEdge {
1082 match self {
1083 ResizeEdge::Top => xdg_toplevel::ResizeEdge::Top,
1084 ResizeEdge::TopRight => xdg_toplevel::ResizeEdge::TopRight,
1085 ResizeEdge::Right => xdg_toplevel::ResizeEdge::Right,
1086 ResizeEdge::BottomRight => xdg_toplevel::ResizeEdge::BottomRight,
1087 ResizeEdge::Bottom => xdg_toplevel::ResizeEdge::Bottom,
1088 ResizeEdge::BottomLeft => xdg_toplevel::ResizeEdge::BottomLeft,
1089 ResizeEdge::Left => xdg_toplevel::ResizeEdge::Left,
1090 ResizeEdge::TopLeft => xdg_toplevel::ResizeEdge::TopLeft,
1091 }
1092 }
1093}
1094
1095/// The configuration event is in terms of the window geometry, which we are constantly
1096/// updating to account for the client decorations. But that's not the area we want to render
1097/// to, due to our intrusize CSD. So, here we calculate the 'actual' size, by adding back in the insets
1098fn compute_outer_size(
1099 inset: Option<Pixels>,
1100 new_size: Option<Size<Pixels>>,
1101 tiling: Tiling,
1102) -> Option<Size<Pixels>> {
1103 let Some(inset) = inset else { return new_size };
1104
1105 new_size.map(|mut new_size| {
1106 if !tiling.top {
1107 new_size.height += inset;
1108 }
1109 if !tiling.bottom {
1110 new_size.height += inset;
1111 }
1112 if !tiling.left {
1113 new_size.width += inset;
1114 }
1115 if !tiling.right {
1116 new_size.width += inset;
1117 }
1118
1119 new_size
1120 })
1121}
1122
1123fn inset_by_tiling(mut bounds: Bounds<Pixels>, inset: Pixels, tiling: Tiling) -> Bounds<Pixels> {
1124 if !tiling.top {
1125 bounds.origin.y += inset;
1126 bounds.size.height -= inset;
1127 }
1128 if !tiling.bottom {
1129 bounds.size.height -= inset;
1130 }
1131 if !tiling.left {
1132 bounds.origin.x += inset;
1133 bounds.size.width -= inset;
1134 }
1135 if !tiling.right {
1136 bounds.size.width -= inset;
1137 }
1138
1139 bounds
1140}