1use std::{
2 cell::{Ref, RefCell, RefMut},
3 ffi::c_void,
4 ptr::NonNull,
5 rc::Rc,
6 sync::Arc,
7};
8
9use collections::{FxHashSet, HashMap};
10use futures::channel::oneshot::Receiver;
11
12use raw_window_handle as rwh;
13use wayland_backend::client::ObjectId;
14use wayland_client::WEnum;
15use wayland_client::{
16 Proxy,
17 protocol::{wl_output, wl_surface},
18};
19use wayland_protocols::wp::viewporter::client::wp_viewport;
20use wayland_protocols::xdg::decoration::zv1::client::zxdg_toplevel_decoration_v1;
21use wayland_protocols::xdg::shell::client::xdg_surface;
22use wayland_protocols::xdg::shell::client::xdg_toplevel::{self};
23use wayland_protocols::{
24 wp::fractional_scale::v1::client::wp_fractional_scale_v1,
25 xdg::dialog::v1::client::xdg_dialog_v1::XdgDialogV1,
26};
27use wayland_protocols_plasma::blur::client::org_kde_kwin_blur;
28use wayland_protocols_wlr::layer_shell::v1::client::zwlr_layer_surface_v1;
29
30use crate::linux::wayland::{display::WaylandDisplay, serial::SerialKind};
31use crate::linux::{Globals, Output, WaylandClientStatePtr, get_window};
32use gpui::{
33 AnyWindowHandle, Bounds, Capslock, Decorations, DevicePixels, GpuSpecs, Modifiers, Pixels,
34 PlatformAtlas, PlatformDisplay, PlatformInput, PlatformInputHandler, PlatformWindow, Point,
35 PromptButton, PromptLevel, RequestFrameOptions, ResizeEdge, Scene, Size, Tiling,
36 WindowAppearance, WindowBackgroundAppearance, WindowBounds, WindowControlArea, WindowControls,
37 WindowDecorations, WindowKind, WindowParams, layer_shell::LayerShellNotSupportedError, px,
38 size,
39};
40use gpui_wgpu::{CompositorGpuHint, WgpuRenderer, WgpuSurfaceConfig};
41
42#[derive(Default)]
43pub(crate) struct Callbacks {
44 request_frame: Option<Box<dyn FnMut(RequestFrameOptions)>>,
45 input: Option<Box<dyn FnMut(gpui::PlatformInput) -> gpui::DispatchEventResult>>,
46 active_status_change: Option<Box<dyn FnMut(bool)>>,
47 hover_status_change: Option<Box<dyn FnMut(bool)>>,
48 resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
49 moved: Option<Box<dyn FnMut()>>,
50 should_close: Option<Box<dyn FnMut() -> bool>>,
51 close: Option<Box<dyn FnOnce()>>,
52 appearance_changed: Option<Box<dyn FnMut()>>,
53}
54
55struct RawWindow {
56 window: *mut c_void,
57 display: *mut c_void,
58}
59
60// Safety: The raw pointers in RawWindow point to Wayland surface/display
61// which are valid for the window's lifetime. These are used only for
62// passing to wgpu which needs Send+Sync for surface creation.
63unsafe impl Send for RawWindow {}
64unsafe impl Sync for RawWindow {}
65
66impl rwh::HasWindowHandle for RawWindow {
67 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
68 let window = NonNull::new(self.window).unwrap();
69 let handle = rwh::WaylandWindowHandle::new(window);
70 Ok(unsafe { rwh::WindowHandle::borrow_raw(handle.into()) })
71 }
72}
73impl rwh::HasDisplayHandle for RawWindow {
74 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
75 let display = NonNull::new(self.display).unwrap();
76 let handle = rwh::WaylandDisplayHandle::new(display);
77 Ok(unsafe { rwh::DisplayHandle::borrow_raw(handle.into()) })
78 }
79}
80
81#[derive(Debug)]
82struct InProgressConfigure {
83 size: Option<Size<Pixels>>,
84 fullscreen: bool,
85 maximized: bool,
86 resizing: bool,
87 tiling: Tiling,
88}
89
90pub struct WaylandWindowState {
91 surface_state: WaylandSurfaceState,
92 acknowledged_first_configure: bool,
93 parent: Option<WaylandWindowStatePtr>,
94 children: FxHashSet<ObjectId>,
95 pub surface: wl_surface::WlSurface,
96 app_id: Option<String>,
97 appearance: WindowAppearance,
98 blur: Option<org_kde_kwin_blur::OrgKdeKwinBlur>,
99 viewport: Option<wp_viewport::WpViewport>,
100 outputs: HashMap<ObjectId, Output>,
101 display: Option<(ObjectId, Output)>,
102 globals: Globals,
103 renderer: WgpuRenderer,
104 bounds: Bounds<Pixels>,
105 scale: f32,
106 input_handler: Option<PlatformInputHandler>,
107 decorations: WindowDecorations,
108 background_appearance: WindowBackgroundAppearance,
109 fullscreen: bool,
110 maximized: bool,
111 tiling: Tiling,
112 window_bounds: Bounds<Pixels>,
113 client: WaylandClientStatePtr,
114 handle: AnyWindowHandle,
115 active: bool,
116 hovered: bool,
117 pub(crate) force_render_after_recovery: bool,
118 in_progress_configure: Option<InProgressConfigure>,
119 resize_throttle: bool,
120 in_progress_window_controls: Option<WindowControls>,
121 window_controls: WindowControls,
122 client_inset: Option<Pixels>,
123}
124
125pub enum WaylandSurfaceState {
126 Xdg(WaylandXdgSurfaceState),
127 LayerShell(WaylandLayerSurfaceState),
128}
129
130impl WaylandSurfaceState {
131 fn new(
132 surface: &wl_surface::WlSurface,
133 globals: &Globals,
134 params: &WindowParams,
135 parent: Option<WaylandWindowStatePtr>,
136 target_output: Option<wl_output::WlOutput>,
137 ) -> anyhow::Result<Self> {
138 // For layer_shell windows, create a layer surface instead of an xdg surface
139 if let WindowKind::LayerShell(options) = ¶ms.kind {
140 let Some(layer_shell) = globals.layer_shell.as_ref() else {
141 return Err(LayerShellNotSupportedError.into());
142 };
143
144 let layer_surface = layer_shell.get_layer_surface(
145 &surface,
146 target_output.as_ref(),
147 super::layer_shell::wayland_layer(options.layer),
148 options.namespace.clone(),
149 &globals.qh,
150 surface.id(),
151 );
152
153 let width = f32::from(params.bounds.size.width);
154 let height = f32::from(params.bounds.size.height);
155 layer_surface.set_size(width as u32, height as u32);
156
157 layer_surface.set_anchor(super::layer_shell::wayland_anchor(options.anchor));
158 layer_surface.set_keyboard_interactivity(
159 super::layer_shell::wayland_keyboard_interactivity(options.keyboard_interactivity),
160 );
161
162 if let Some(margin) = options.margin {
163 layer_surface.set_margin(
164 f32::from(margin.0) as i32,
165 f32::from(margin.1) as i32,
166 f32::from(margin.2) as i32,
167 f32::from(margin.3) as i32,
168 )
169 }
170
171 if let Some(exclusive_zone) = options.exclusive_zone {
172 layer_surface.set_exclusive_zone(f32::from(exclusive_zone) as i32);
173 }
174
175 if let Some(exclusive_edge) = options.exclusive_edge {
176 layer_surface
177 .set_exclusive_edge(super::layer_shell::wayland_anchor(exclusive_edge));
178 }
179
180 return Ok(WaylandSurfaceState::LayerShell(WaylandLayerSurfaceState {
181 layer_surface,
182 }));
183 }
184
185 // All other WindowKinds result in a regular xdg surface
186 let xdg_surface = globals
187 .wm_base
188 .get_xdg_surface(&surface, &globals.qh, surface.id());
189
190 let toplevel = xdg_surface.get_toplevel(&globals.qh, surface.id());
191 let xdg_parent = parent.as_ref().and_then(|w| w.toplevel());
192
193 if params.kind == WindowKind::Floating || params.kind == WindowKind::Dialog {
194 toplevel.set_parent(xdg_parent.as_ref());
195 }
196
197 let dialog = if params.kind == WindowKind::Dialog {
198 let dialog = globals.dialog.as_ref().map(|dialog| {
199 let xdg_dialog = dialog.get_xdg_dialog(&toplevel, &globals.qh, ());
200 xdg_dialog.set_modal();
201 xdg_dialog
202 });
203
204 if let Some(parent) = parent.as_ref() {
205 parent.add_child(surface.id());
206 }
207
208 dialog
209 } else {
210 None
211 };
212
213 if let Some(size) = params.window_min_size {
214 toplevel.set_min_size(f32::from(size.width) as i32, f32::from(size.height) as i32);
215 }
216
217 // Attempt to set up window decorations based on the requested configuration
218 let decoration = globals
219 .decoration_manager
220 .as_ref()
221 .map(|decoration_manager| {
222 decoration_manager.get_toplevel_decoration(&toplevel, &globals.qh, surface.id())
223 });
224
225 Ok(WaylandSurfaceState::Xdg(WaylandXdgSurfaceState {
226 xdg_surface,
227 toplevel,
228 decoration,
229 dialog,
230 }))
231 }
232}
233
234pub struct WaylandXdgSurfaceState {
235 xdg_surface: xdg_surface::XdgSurface,
236 toplevel: xdg_toplevel::XdgToplevel,
237 decoration: Option<zxdg_toplevel_decoration_v1::ZxdgToplevelDecorationV1>,
238 dialog: Option<XdgDialogV1>,
239}
240
241pub struct WaylandLayerSurfaceState {
242 layer_surface: zwlr_layer_surface_v1::ZwlrLayerSurfaceV1,
243}
244
245impl WaylandSurfaceState {
246 fn ack_configure(&self, serial: u32) {
247 match self {
248 WaylandSurfaceState::Xdg(WaylandXdgSurfaceState { xdg_surface, .. }) => {
249 xdg_surface.ack_configure(serial);
250 }
251 WaylandSurfaceState::LayerShell(WaylandLayerSurfaceState { layer_surface, .. }) => {
252 layer_surface.ack_configure(serial);
253 }
254 }
255 }
256
257 fn decoration(&self) -> Option<&zxdg_toplevel_decoration_v1::ZxdgToplevelDecorationV1> {
258 if let WaylandSurfaceState::Xdg(WaylandXdgSurfaceState { decoration, .. }) = self {
259 decoration.as_ref()
260 } else {
261 None
262 }
263 }
264
265 fn toplevel(&self) -> Option<&xdg_toplevel::XdgToplevel> {
266 if let WaylandSurfaceState::Xdg(WaylandXdgSurfaceState { toplevel, .. }) = self {
267 Some(toplevel)
268 } else {
269 None
270 }
271 }
272
273 fn set_geometry(&self, x: i32, y: i32, width: i32, height: i32) {
274 match self {
275 WaylandSurfaceState::Xdg(WaylandXdgSurfaceState { xdg_surface, .. }) => {
276 xdg_surface.set_window_geometry(x, y, width, height);
277 }
278 WaylandSurfaceState::LayerShell(WaylandLayerSurfaceState { layer_surface, .. }) => {
279 // cannot set window position of a layer surface
280 layer_surface.set_size(width as u32, height as u32);
281 }
282 }
283 }
284
285 fn destroy(&mut self) {
286 match self {
287 WaylandSurfaceState::Xdg(WaylandXdgSurfaceState {
288 xdg_surface,
289 toplevel,
290 decoration: _decoration,
291 dialog,
292 }) => {
293 // drop the dialog before toplevel so compositor can explicitly unapply it's effects
294 if let Some(dialog) = dialog {
295 dialog.destroy();
296 }
297
298 // The role object (toplevel) must always be destroyed before the xdg_surface.
299 // See https://wayland.app/protocols/xdg-shell#xdg_surface:request:destroy
300 toplevel.destroy();
301 xdg_surface.destroy();
302 }
303 WaylandSurfaceState::LayerShell(WaylandLayerSurfaceState { layer_surface }) => {
304 layer_surface.destroy();
305 }
306 }
307 }
308}
309
310#[derive(Clone)]
311pub struct WaylandWindowStatePtr {
312 state: Rc<RefCell<WaylandWindowState>>,
313 callbacks: Rc<RefCell<Callbacks>>,
314}
315
316impl WaylandWindowState {
317 pub(crate) fn new(
318 handle: AnyWindowHandle,
319 surface: wl_surface::WlSurface,
320 surface_state: WaylandSurfaceState,
321 appearance: WindowAppearance,
322 viewport: Option<wp_viewport::WpViewport>,
323 client: WaylandClientStatePtr,
324 globals: Globals,
325 gpu_context: gpui_wgpu::GpuContext,
326 compositor_gpu: Option<CompositorGpuHint>,
327 options: WindowParams,
328 parent: Option<WaylandWindowStatePtr>,
329 ) -> anyhow::Result<Self> {
330 let renderer = {
331 let raw_window = RawWindow {
332 window: surface.id().as_ptr().cast::<c_void>(),
333 display: surface
334 .backend()
335 .upgrade()
336 .unwrap()
337 .display_ptr()
338 .cast::<c_void>(),
339 };
340 let config = WgpuSurfaceConfig {
341 size: Size {
342 width: DevicePixels(f32::from(options.bounds.size.width) as i32),
343 height: DevicePixels(f32::from(options.bounds.size.height) as i32),
344 },
345 transparent: true,
346 };
347 WgpuRenderer::new(gpu_context, &raw_window, config, compositor_gpu)?
348 };
349
350 if let WaylandSurfaceState::Xdg(ref xdg_state) = surface_state {
351 if let Some(title) = options.titlebar.and_then(|titlebar| titlebar.title) {
352 xdg_state.toplevel.set_title(title.to_string());
353 }
354 // Set max window size based on the GPU's maximum texture dimension.
355 // This prevents the window from being resized larger than what the GPU can render.
356 let max_texture_size = renderer.max_texture_size() as i32;
357 xdg_state
358 .toplevel
359 .set_max_size(max_texture_size, max_texture_size);
360 }
361
362 Ok(Self {
363 surface_state,
364 acknowledged_first_configure: false,
365 parent,
366 children: FxHashSet::default(),
367 surface,
368 app_id: None,
369 blur: None,
370 viewport,
371 globals,
372 outputs: HashMap::default(),
373 display: None,
374 renderer,
375 bounds: options.bounds,
376 scale: 1.0,
377 input_handler: None,
378 decorations: WindowDecorations::Client,
379 background_appearance: WindowBackgroundAppearance::Opaque,
380 fullscreen: false,
381 maximized: false,
382 tiling: Tiling::default(),
383 window_bounds: options.bounds,
384 in_progress_configure: None,
385 resize_throttle: false,
386 client,
387 appearance,
388 handle,
389 active: false,
390 hovered: false,
391 force_render_after_recovery: false,
392 in_progress_window_controls: None,
393 window_controls: WindowControls::default(),
394 client_inset: None,
395 })
396 }
397
398 pub fn is_transparent(&self) -> bool {
399 self.decorations == WindowDecorations::Client
400 || self.background_appearance != WindowBackgroundAppearance::Opaque
401 }
402
403 pub fn primary_output_scale(&mut self) -> i32 {
404 let mut scale = 1;
405 let mut current_output = self.display.take();
406 for (id, output) in self.outputs.iter() {
407 if let Some((_, output_data)) = ¤t_output {
408 if output.scale > output_data.scale {
409 current_output = Some((id.clone(), output.clone()));
410 }
411 } else {
412 current_output = Some((id.clone(), output.clone()));
413 }
414 scale = scale.max(output.scale);
415 }
416 self.display = current_output;
417 scale
418 }
419
420 pub fn inset(&self) -> Pixels {
421 match self.decorations {
422 WindowDecorations::Server => px(0.0),
423 WindowDecorations::Client => self.client_inset.unwrap_or(px(0.0)),
424 }
425 }
426}
427
428pub(crate) struct WaylandWindow(pub WaylandWindowStatePtr);
429pub enum ImeInput {
430 InsertText(String),
431 SetMarkedText(String),
432 UnmarkText,
433 DeleteText,
434}
435
436impl Drop for WaylandWindow {
437 fn drop(&mut self) {
438 let mut state = self.0.state.borrow_mut();
439 let surface_id = state.surface.id();
440 if let Some(parent) = state.parent.as_ref() {
441 parent.state.borrow_mut().children.remove(&surface_id);
442 }
443
444 let client = state.client.clone();
445
446 state.renderer.destroy();
447
448 // Destroy blur first, this has no dependencies.
449 if let Some(blur) = &state.blur {
450 blur.release();
451 }
452
453 // Decorations must be destroyed before the xdg state.
454 // See https://wayland.app/protocols/xdg-decoration-unstable-v1#zxdg_toplevel_decoration_v1
455 if let Some(decoration) = &state.surface_state.decoration() {
456 decoration.destroy();
457 }
458
459 // Surface state might contain xdg_toplevel/xdg_surface which can be destroyed now that
460 // decorations are gone. layer_surface has no dependencies.
461 state.surface_state.destroy();
462
463 // Viewport must be destroyed before the wl_surface.
464 // See https://wayland.app/protocols/viewporter#wp_viewport
465 if let Some(viewport) = &state.viewport {
466 viewport.destroy();
467 }
468
469 // The wl_surface itself should always be destroyed last.
470 state.surface.destroy();
471
472 let state_ptr = self.0.clone();
473 state
474 .globals
475 .executor
476 .spawn(async move {
477 state_ptr.close();
478 client.drop_window(&surface_id)
479 })
480 .detach();
481 drop(state);
482 }
483}
484
485impl WaylandWindow {
486 fn borrow(&self) -> Ref<'_, WaylandWindowState> {
487 self.0.state.borrow()
488 }
489
490 fn borrow_mut(&self) -> RefMut<'_, WaylandWindowState> {
491 self.0.state.borrow_mut()
492 }
493
494 pub fn new(
495 handle: AnyWindowHandle,
496 globals: Globals,
497 gpu_context: gpui_wgpu::GpuContext,
498 compositor_gpu: Option<CompositorGpuHint>,
499 client: WaylandClientStatePtr,
500 params: WindowParams,
501 appearance: WindowAppearance,
502 parent: Option<WaylandWindowStatePtr>,
503 target_output: Option<wl_output::WlOutput>,
504 ) -> anyhow::Result<(Self, ObjectId)> {
505 let surface = globals.compositor.create_surface(&globals.qh, ());
506 let surface_state =
507 WaylandSurfaceState::new(&surface, &globals, ¶ms, parent.clone(), target_output)?;
508
509 if let Some(fractional_scale_manager) = globals.fractional_scale_manager.as_ref() {
510 fractional_scale_manager.get_fractional_scale(&surface, &globals.qh, surface.id());
511 }
512
513 let viewport = globals
514 .viewporter
515 .as_ref()
516 .map(|viewporter| viewporter.get_viewport(&surface, &globals.qh, ()));
517
518 let this = Self(WaylandWindowStatePtr {
519 state: Rc::new(RefCell::new(WaylandWindowState::new(
520 handle,
521 surface.clone(),
522 surface_state,
523 appearance,
524 viewport,
525 client,
526 globals,
527 gpu_context,
528 compositor_gpu,
529 params,
530 parent,
531 )?)),
532 callbacks: Rc::new(RefCell::new(Callbacks::default())),
533 });
534
535 // Kick things off
536 surface.commit();
537
538 Ok((this, surface.id()))
539 }
540}
541
542impl WaylandWindowStatePtr {
543 pub fn handle(&self) -> AnyWindowHandle {
544 self.state.borrow().handle
545 }
546
547 pub fn surface(&self) -> wl_surface::WlSurface {
548 self.state.borrow().surface.clone()
549 }
550
551 pub fn toplevel(&self) -> Option<xdg_toplevel::XdgToplevel> {
552 self.state.borrow().surface_state.toplevel().cloned()
553 }
554
555 pub fn ptr_eq(&self, other: &Self) -> bool {
556 Rc::ptr_eq(&self.state, &other.state)
557 }
558
559 pub fn add_child(&self, child: ObjectId) {
560 let mut state = self.state.borrow_mut();
561 state.children.insert(child);
562 }
563
564 pub fn is_blocked(&self) -> bool {
565 let state = self.state.borrow();
566 !state.children.is_empty()
567 }
568
569 pub fn frame(&self) {
570 let mut state = self.state.borrow_mut();
571 state.surface.frame(&state.globals.qh, state.surface.id());
572 state.resize_throttle = false;
573 let force_render = state.force_render_after_recovery;
574 state.force_render_after_recovery = false;
575 drop(state);
576
577 let mut cb = self.callbacks.borrow_mut();
578 if let Some(fun) = cb.request_frame.as_mut() {
579 fun(RequestFrameOptions {
580 force_render,
581 ..Default::default()
582 });
583 }
584 }
585
586 pub fn handle_xdg_surface_event(&self, event: xdg_surface::Event) {
587 if let xdg_surface::Event::Configure { serial } = event {
588 {
589 let mut state = self.state.borrow_mut();
590 if let Some(window_controls) = state.in_progress_window_controls.take() {
591 state.window_controls = window_controls;
592
593 drop(state);
594 let mut callbacks = self.callbacks.borrow_mut();
595 if let Some(appearance_changed) = callbacks.appearance_changed.as_mut() {
596 appearance_changed();
597 }
598 }
599 }
600 {
601 let mut state = self.state.borrow_mut();
602
603 if let Some(mut configure) = state.in_progress_configure.take() {
604 let got_unmaximized = state.maximized && !configure.maximized;
605 state.fullscreen = configure.fullscreen;
606 state.maximized = configure.maximized;
607 state.tiling = configure.tiling;
608 // Limit interactive resizes to once per vblank
609 if configure.resizing && state.resize_throttle {
610 return;
611 } else if configure.resizing {
612 state.resize_throttle = true;
613 }
614 if !configure.fullscreen && !configure.maximized {
615 configure.size = if got_unmaximized {
616 Some(state.window_bounds.size)
617 } else {
618 compute_outer_size(state.inset(), configure.size, state.tiling)
619 };
620 if let Some(size) = configure.size {
621 state.window_bounds = Bounds {
622 origin: Point::default(),
623 size,
624 };
625 }
626 }
627 drop(state);
628 if let Some(size) = configure.size {
629 self.resize(size);
630 }
631 }
632 }
633 let mut state = self.state.borrow_mut();
634 state.surface_state.ack_configure(serial);
635
636 let window_geometry = inset_by_tiling(
637 state.bounds.map_origin(|_| px(0.0)),
638 state.inset(),
639 state.tiling,
640 )
641 .map(|v| f32::from(v) as i32)
642 .map_size(|v| if v <= 0 { 1 } else { v });
643
644 state.surface_state.set_geometry(
645 window_geometry.origin.x,
646 window_geometry.origin.y,
647 window_geometry.size.width,
648 window_geometry.size.height,
649 );
650
651 let request_frame_callback = !state.acknowledged_first_configure;
652 if request_frame_callback {
653 state.acknowledged_first_configure = true;
654 drop(state);
655 self.frame();
656 }
657 }
658 }
659
660 pub fn handle_toplevel_decoration_event(&self, event: zxdg_toplevel_decoration_v1::Event) {
661 if let zxdg_toplevel_decoration_v1::Event::Configure { mode } = event {
662 match mode {
663 WEnum::Value(zxdg_toplevel_decoration_v1::Mode::ServerSide) => {
664 self.state.borrow_mut().decorations = WindowDecorations::Server;
665 let callback = self.callbacks.borrow_mut().appearance_changed.take();
666 if let Some(mut fun) = callback {
667 fun();
668 self.callbacks.borrow_mut().appearance_changed = Some(fun);
669 }
670 }
671 WEnum::Value(zxdg_toplevel_decoration_v1::Mode::ClientSide) => {
672 self.state.borrow_mut().decorations = WindowDecorations::Client;
673 // Update background to be transparent
674 let callback = self.callbacks.borrow_mut().appearance_changed.take();
675 if let Some(mut fun) = callback {
676 fun();
677 self.callbacks.borrow_mut().appearance_changed = Some(fun);
678 }
679 }
680 WEnum::Value(_) => {
681 log::warn!("Unknown decoration mode");
682 }
683 WEnum::Unknown(v) => {
684 log::warn!("Unknown decoration mode: {}", v);
685 }
686 }
687 }
688 }
689
690 pub fn handle_fractional_scale_event(&self, event: wp_fractional_scale_v1::Event) {
691 if let wp_fractional_scale_v1::Event::PreferredScale { scale } = event {
692 self.rescale(scale as f32 / 120.0);
693 }
694 }
695
696 pub fn handle_toplevel_event(&self, event: xdg_toplevel::Event) -> bool {
697 match event {
698 xdg_toplevel::Event::Configure {
699 width,
700 height,
701 states,
702 } => {
703 let size = if width == 0 || height == 0 {
704 None
705 } else {
706 Some(size(px(width as f32), px(height as f32)))
707 };
708
709 let states = extract_states::<xdg_toplevel::State>(&states);
710
711 let mut tiling = Tiling::default();
712 let mut fullscreen = false;
713 let mut maximized = false;
714 let mut resizing = false;
715
716 for state in states {
717 match state {
718 xdg_toplevel::State::Maximized => {
719 maximized = true;
720 }
721 xdg_toplevel::State::Fullscreen => {
722 fullscreen = true;
723 }
724 xdg_toplevel::State::Resizing => resizing = true,
725 xdg_toplevel::State::TiledTop => {
726 tiling.top = true;
727 }
728 xdg_toplevel::State::TiledLeft => {
729 tiling.left = true;
730 }
731 xdg_toplevel::State::TiledRight => {
732 tiling.right = true;
733 }
734 xdg_toplevel::State::TiledBottom => {
735 tiling.bottom = true;
736 }
737 _ => {
738 // noop
739 }
740 }
741 }
742
743 if fullscreen || maximized {
744 tiling = Tiling::tiled();
745 }
746
747 let mut state = self.state.borrow_mut();
748 state.in_progress_configure = Some(InProgressConfigure {
749 size,
750 fullscreen,
751 maximized,
752 resizing,
753 tiling,
754 });
755
756 false
757 }
758 xdg_toplevel::Event::Close => {
759 let mut cb = self.callbacks.borrow_mut();
760 if let Some(mut should_close) = cb.should_close.take() {
761 let result = (should_close)();
762 cb.should_close = Some(should_close);
763 if result {
764 drop(cb);
765 self.close();
766 }
767 result
768 } else {
769 true
770 }
771 }
772 xdg_toplevel::Event::WmCapabilities { capabilities } => {
773 let mut window_controls = WindowControls::default();
774
775 let states = extract_states::<xdg_toplevel::WmCapabilities>(&capabilities);
776
777 for state in states {
778 match state {
779 xdg_toplevel::WmCapabilities::Maximize => {
780 window_controls.maximize = true;
781 }
782 xdg_toplevel::WmCapabilities::Minimize => {
783 window_controls.minimize = true;
784 }
785 xdg_toplevel::WmCapabilities::Fullscreen => {
786 window_controls.fullscreen = true;
787 }
788 xdg_toplevel::WmCapabilities::WindowMenu => {
789 window_controls.window_menu = true;
790 }
791 _ => {}
792 }
793 }
794
795 let mut state = self.state.borrow_mut();
796 state.in_progress_window_controls = Some(window_controls);
797 false
798 }
799 _ => false,
800 }
801 }
802
803 pub fn handle_layersurface_event(&self, event: zwlr_layer_surface_v1::Event) -> bool {
804 match event {
805 zwlr_layer_surface_v1::Event::Configure {
806 width,
807 height,
808 serial,
809 } => {
810 let size = if width == 0 || height == 0 {
811 None
812 } else {
813 Some(size(px(width as f32), px(height as f32)))
814 };
815
816 let mut state = self.state.borrow_mut();
817 state.in_progress_configure = Some(InProgressConfigure {
818 size,
819 fullscreen: false,
820 maximized: false,
821 resizing: false,
822 tiling: Tiling::default(),
823 });
824 drop(state);
825
826 // just do the same thing we'd do as an xdg_surface
827 self.handle_xdg_surface_event(xdg_surface::Event::Configure { serial });
828
829 false
830 }
831 zwlr_layer_surface_v1::Event::Closed => {
832 // unlike xdg, we don't have a choice here: the surface is closing.
833 true
834 }
835 _ => false,
836 }
837 }
838
839 #[allow(clippy::mutable_key_type)]
840 pub fn handle_surface_event(
841 &self,
842 event: wl_surface::Event,
843 outputs: HashMap<ObjectId, Output>,
844 ) {
845 let mut state = self.state.borrow_mut();
846
847 match event {
848 wl_surface::Event::Enter { output } => {
849 let id = output.id();
850
851 let Some(output) = outputs.get(&id) else {
852 return;
853 };
854
855 state.outputs.insert(id, output.clone());
856
857 let scale = state.primary_output_scale();
858
859 // We use `PreferredBufferScale` instead to set the scale if it's available
860 if state.surface.version() < wl_surface::EVT_PREFERRED_BUFFER_SCALE_SINCE {
861 state.surface.set_buffer_scale(scale);
862 drop(state);
863 self.rescale(scale as f32);
864 }
865 }
866 wl_surface::Event::Leave { output } => {
867 state.outputs.remove(&output.id());
868
869 let scale = state.primary_output_scale();
870
871 // We use `PreferredBufferScale` instead to set the scale if it's available
872 if state.surface.version() < wl_surface::EVT_PREFERRED_BUFFER_SCALE_SINCE {
873 state.surface.set_buffer_scale(scale);
874 drop(state);
875 self.rescale(scale as f32);
876 }
877 }
878 wl_surface::Event::PreferredBufferScale { factor } => {
879 // We use `WpFractionalScale` instead to set the scale if it's available
880 if state.globals.fractional_scale_manager.is_none() {
881 state.surface.set_buffer_scale(factor);
882 drop(state);
883 self.rescale(factor as f32);
884 }
885 }
886 _ => {}
887 }
888 }
889
890 pub fn handle_ime(&self, ime: ImeInput) {
891 if self.is_blocked() {
892 return;
893 }
894 let mut state = self.state.borrow_mut();
895 if let Some(mut input_handler) = state.input_handler.take() {
896 drop(state);
897 match ime {
898 ImeInput::InsertText(text) => {
899 input_handler.replace_text_in_range(None, &text);
900 }
901 ImeInput::SetMarkedText(text) => {
902 input_handler.replace_and_mark_text_in_range(None, &text, None);
903 }
904 ImeInput::UnmarkText => {
905 input_handler.unmark_text();
906 }
907 ImeInput::DeleteText => {
908 if let Some(marked) = input_handler.marked_text_range() {
909 input_handler.replace_text_in_range(Some(marked), "");
910 }
911 }
912 }
913 self.state.borrow_mut().input_handler = Some(input_handler);
914 }
915 }
916
917 pub fn get_ime_area(&self) -> Option<Bounds<Pixels>> {
918 let mut state = self.state.borrow_mut();
919 let mut bounds: Option<Bounds<Pixels>> = None;
920 if let Some(mut input_handler) = state.input_handler.take() {
921 drop(state);
922 if let Some(selection) = input_handler.marked_text_range() {
923 bounds = input_handler.bounds_for_range(selection.start..selection.start);
924 }
925 self.state.borrow_mut().input_handler = Some(input_handler);
926 }
927 bounds
928 }
929
930 pub fn set_size_and_scale(&self, size: Option<Size<Pixels>>, scale: Option<f32>) {
931 let (size, scale) = {
932 let mut state = self.state.borrow_mut();
933 if size.is_none_or(|size| size == state.bounds.size)
934 && scale.is_none_or(|scale| scale == state.scale)
935 {
936 return;
937 }
938 if let Some(size) = size {
939 state.bounds.size = size;
940 }
941 if let Some(scale) = scale {
942 state.scale = scale;
943 }
944 let device_bounds = state.bounds.to_device_pixels(state.scale);
945 state.renderer.update_drawable_size(device_bounds.size);
946 (state.bounds.size, state.scale)
947 };
948
949 let callback = self.callbacks.borrow_mut().resize.take();
950 if let Some(mut fun) = callback {
951 fun(size, scale);
952 self.callbacks.borrow_mut().resize = Some(fun);
953 }
954
955 {
956 let state = self.state.borrow();
957 if let Some(viewport) = &state.viewport {
958 viewport
959 .set_destination(f32::from(size.width) as i32, f32::from(size.height) as i32);
960 }
961 }
962 }
963
964 pub fn resize(&self, size: Size<Pixels>) {
965 self.set_size_and_scale(Some(size), None);
966 }
967
968 pub fn rescale(&self, scale: f32) {
969 self.set_size_and_scale(None, Some(scale));
970 }
971
972 pub fn close(&self) {
973 let state = self.state.borrow();
974 let client = state.client.get_client();
975 #[allow(clippy::mutable_key_type)]
976 let children = state.children.clone();
977 drop(state);
978
979 for child in children {
980 let mut client_state = client.borrow_mut();
981 let window = get_window(&mut client_state, &child);
982 drop(client_state);
983
984 if let Some(child) = window {
985 child.close();
986 }
987 }
988 let mut callbacks = self.callbacks.borrow_mut();
989 if let Some(fun) = callbacks.close.take() {
990 fun()
991 }
992 }
993
994 pub fn handle_input(&self, input: PlatformInput) {
995 if self.is_blocked() {
996 return;
997 }
998 let callback = self.callbacks.borrow_mut().input.take();
999 if let Some(mut fun) = callback {
1000 let result = fun(input.clone());
1001 self.callbacks.borrow_mut().input = Some(fun);
1002 if !result.propagate {
1003 return;
1004 }
1005 }
1006 if let PlatformInput::KeyDown(event) = input
1007 && event.keystroke.modifiers.is_subset_of(&Modifiers::shift())
1008 && let Some(key_char) = &event.keystroke.key_char
1009 {
1010 let mut state = self.state.borrow_mut();
1011 if let Some(mut input_handler) = state.input_handler.take() {
1012 drop(state);
1013 input_handler.replace_text_in_range(None, key_char);
1014 self.state.borrow_mut().input_handler = Some(input_handler);
1015 }
1016 }
1017 }
1018
1019 pub fn set_focused(&self, focus: bool) {
1020 self.state.borrow_mut().active = focus;
1021 let callback = self.callbacks.borrow_mut().active_status_change.take();
1022 if let Some(mut fun) = callback {
1023 fun(focus);
1024 self.callbacks.borrow_mut().active_status_change = Some(fun);
1025 }
1026 }
1027
1028 pub fn set_hovered(&self, focus: bool) {
1029 let callback = self.callbacks.borrow_mut().hover_status_change.take();
1030 if let Some(mut fun) = callback {
1031 fun(focus);
1032 self.callbacks.borrow_mut().hover_status_change = Some(fun);
1033 }
1034 }
1035
1036 pub fn set_appearance(&mut self, appearance: WindowAppearance) {
1037 self.state.borrow_mut().appearance = appearance;
1038
1039 let callback = self.callbacks.borrow_mut().appearance_changed.take();
1040 if let Some(mut fun) = callback {
1041 fun();
1042 self.callbacks.borrow_mut().appearance_changed = Some(fun);
1043 }
1044 }
1045
1046 pub fn primary_output_scale(&self) -> i32 {
1047 self.state.borrow_mut().primary_output_scale()
1048 }
1049}
1050
1051fn extract_states<'a, S: TryFrom<u32> + 'a>(states: &'a [u8]) -> impl Iterator<Item = S> + 'a
1052where
1053 <S as TryFrom<u32>>::Error: 'a,
1054{
1055 states
1056 .chunks_exact(4)
1057 .flat_map(TryInto::<[u8; 4]>::try_into)
1058 .map(u32::from_ne_bytes)
1059 .flat_map(S::try_from)
1060}
1061
1062impl rwh::HasWindowHandle for WaylandWindow {
1063 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
1064 let surface = self.0.surface().id().as_ptr() as *mut libc::c_void;
1065 let c_ptr = NonNull::new(surface).ok_or(rwh::HandleError::Unavailable)?;
1066 let handle = rwh::WaylandWindowHandle::new(c_ptr);
1067 let raw_handle = rwh::RawWindowHandle::Wayland(handle);
1068 Ok(unsafe { rwh::WindowHandle::borrow_raw(raw_handle) })
1069 }
1070}
1071
1072impl rwh::HasDisplayHandle for WaylandWindow {
1073 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
1074 let display = self
1075 .0
1076 .surface()
1077 .backend()
1078 .upgrade()
1079 .ok_or(rwh::HandleError::Unavailable)?
1080 .display_ptr() as *mut libc::c_void;
1081
1082 let c_ptr = NonNull::new(display).ok_or(rwh::HandleError::Unavailable)?;
1083 let handle = rwh::WaylandDisplayHandle::new(c_ptr);
1084 let raw_handle = rwh::RawDisplayHandle::Wayland(handle);
1085 Ok(unsafe { rwh::DisplayHandle::borrow_raw(raw_handle) })
1086 }
1087}
1088
1089impl PlatformWindow for WaylandWindow {
1090 fn bounds(&self) -> Bounds<Pixels> {
1091 self.borrow().bounds
1092 }
1093
1094 fn is_maximized(&self) -> bool {
1095 self.borrow().maximized
1096 }
1097
1098 fn window_bounds(&self) -> WindowBounds {
1099 let state = self.borrow();
1100 if state.fullscreen {
1101 WindowBounds::Fullscreen(state.window_bounds)
1102 } else if state.maximized {
1103 WindowBounds::Maximized(state.window_bounds)
1104 } else {
1105 drop(state);
1106 WindowBounds::Windowed(self.bounds())
1107 }
1108 }
1109
1110 fn inner_window_bounds(&self) -> WindowBounds {
1111 let state = self.borrow();
1112 if state.fullscreen {
1113 WindowBounds::Fullscreen(state.window_bounds)
1114 } else if state.maximized {
1115 WindowBounds::Maximized(state.window_bounds)
1116 } else {
1117 let inset = state.inset();
1118 drop(state);
1119 WindowBounds::Windowed(self.bounds().inset(inset))
1120 }
1121 }
1122
1123 fn content_size(&self) -> Size<Pixels> {
1124 self.borrow().bounds.size
1125 }
1126
1127 fn resize(&mut self, size: Size<Pixels>) {
1128 let state = self.borrow();
1129 let state_ptr = self.0.clone();
1130
1131 // Keep window geometry consistent with configure handling. On Wayland, window geometry is
1132 // surface-local: resizing should not attempt to translate the window; the compositor
1133 // controls placement. We also account for client-side decoration insets and tiling.
1134 let window_geometry = inset_by_tiling(
1135 Bounds {
1136 origin: Point::default(),
1137 size,
1138 },
1139 state.inset(),
1140 state.tiling,
1141 )
1142 .map(|v| f32::from(v) as i32)
1143 .map_size(|v| if v <= 0 { 1 } else { v });
1144
1145 state.surface_state.set_geometry(
1146 window_geometry.origin.x,
1147 window_geometry.origin.y,
1148 window_geometry.size.width,
1149 window_geometry.size.height,
1150 );
1151
1152 state
1153 .globals
1154 .executor
1155 .spawn(async move { state_ptr.resize(size) })
1156 .detach();
1157 }
1158
1159 fn scale_factor(&self) -> f32 {
1160 self.borrow().scale
1161 }
1162
1163 fn appearance(&self) -> WindowAppearance {
1164 self.borrow().appearance
1165 }
1166
1167 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
1168 let state = self.borrow();
1169 state.display.as_ref().map(|(id, display)| {
1170 Rc::new(WaylandDisplay {
1171 id: id.clone(),
1172 name: display.name.clone(),
1173 bounds: display.bounds.to_pixels(state.scale),
1174 }) as Rc<dyn PlatformDisplay>
1175 })
1176 }
1177
1178 fn mouse_position(&self) -> Point<Pixels> {
1179 self.borrow()
1180 .client
1181 .get_client()
1182 .borrow()
1183 .mouse_location
1184 .unwrap_or_default()
1185 }
1186
1187 fn modifiers(&self) -> Modifiers {
1188 self.borrow().client.get_client().borrow().modifiers
1189 }
1190
1191 fn capslock(&self) -> Capslock {
1192 self.borrow().client.get_client().borrow().capslock
1193 }
1194
1195 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
1196 self.borrow_mut().input_handler = Some(input_handler);
1197 }
1198
1199 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
1200 self.borrow_mut().input_handler.take()
1201 }
1202
1203 fn prompt(
1204 &self,
1205 _level: PromptLevel,
1206 _msg: &str,
1207 _detail: Option<&str>,
1208 _answers: &[PromptButton],
1209 ) -> Option<Receiver<usize>> {
1210 None
1211 }
1212
1213 fn activate(&self) {
1214 // Try to request an activation token. Even though the activation is likely going to be rejected,
1215 // KWin and Mutter can use the app_id to visually indicate we're requesting attention.
1216 let state = self.borrow();
1217 if let (Some(activation), Some(app_id)) = (&state.globals.activation, state.app_id.clone())
1218 {
1219 state.client.set_pending_activation(state.surface.id());
1220 let token = activation.get_activation_token(&state.globals.qh, ());
1221 // The serial isn't exactly important here, since the activation is probably going to be rejected anyway.
1222 let serial = state.client.get_serial(SerialKind::MousePress);
1223 token.set_app_id(app_id);
1224 token.set_serial(serial, &state.globals.seat);
1225 token.set_surface(&state.surface);
1226 token.commit();
1227 }
1228 }
1229
1230 fn is_active(&self) -> bool {
1231 self.borrow().active
1232 }
1233
1234 fn is_hovered(&self) -> bool {
1235 self.borrow().hovered
1236 }
1237
1238 fn set_title(&mut self, title: &str) {
1239 if let Some(toplevel) = self.borrow().surface_state.toplevel() {
1240 toplevel.set_title(title.to_string());
1241 }
1242 }
1243
1244 fn set_app_id(&mut self, app_id: &str) {
1245 let mut state = self.borrow_mut();
1246 if let Some(toplevel) = state.surface_state.toplevel() {
1247 toplevel.set_app_id(app_id.to_owned());
1248 }
1249 state.app_id = Some(app_id.to_owned());
1250 }
1251
1252 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
1253 let mut state = self.borrow_mut();
1254 state.background_appearance = background_appearance;
1255 update_window(state);
1256 }
1257
1258 fn background_appearance(&self) -> WindowBackgroundAppearance {
1259 self.borrow().background_appearance
1260 }
1261
1262 fn is_subpixel_rendering_supported(&self) -> bool {
1263 let client = self.borrow().client.get_client();
1264 let state = client.borrow();
1265 state
1266 .gpu_context
1267 .borrow()
1268 .as_ref()
1269 .is_some_and(|ctx| ctx.supports_dual_source_blending())
1270 }
1271
1272 fn minimize(&self) {
1273 if let Some(toplevel) = self.borrow().surface_state.toplevel() {
1274 toplevel.set_minimized();
1275 }
1276 }
1277
1278 fn zoom(&self) {
1279 let state = self.borrow();
1280 if let Some(toplevel) = state.surface_state.toplevel() {
1281 if !state.maximized {
1282 toplevel.set_maximized();
1283 } else {
1284 toplevel.unset_maximized();
1285 }
1286 }
1287 }
1288
1289 fn toggle_fullscreen(&self) {
1290 let state = self.borrow();
1291 if let Some(toplevel) = state.surface_state.toplevel() {
1292 if !state.fullscreen {
1293 toplevel.set_fullscreen(None);
1294 } else {
1295 toplevel.unset_fullscreen();
1296 }
1297 }
1298 }
1299
1300 fn is_fullscreen(&self) -> bool {
1301 self.borrow().fullscreen
1302 }
1303
1304 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
1305 self.0.callbacks.borrow_mut().request_frame = Some(callback);
1306 }
1307
1308 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> gpui::DispatchEventResult>) {
1309 self.0.callbacks.borrow_mut().input = Some(callback);
1310 }
1311
1312 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1313 self.0.callbacks.borrow_mut().active_status_change = Some(callback);
1314 }
1315
1316 fn on_hover_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1317 self.0.callbacks.borrow_mut().hover_status_change = Some(callback);
1318 }
1319
1320 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
1321 self.0.callbacks.borrow_mut().resize = Some(callback);
1322 }
1323
1324 fn on_moved(&self, callback: Box<dyn FnMut()>) {
1325 self.0.callbacks.borrow_mut().moved = Some(callback);
1326 }
1327
1328 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
1329 self.0.callbacks.borrow_mut().should_close = Some(callback);
1330 }
1331
1332 fn on_close(&self, callback: Box<dyn FnOnce()>) {
1333 self.0.callbacks.borrow_mut().close = Some(callback);
1334 }
1335
1336 fn on_hit_test_window_control(&self, _callback: Box<dyn FnMut() -> Option<WindowControlArea>>) {
1337 }
1338
1339 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
1340 self.0.callbacks.borrow_mut().appearance_changed = Some(callback);
1341 }
1342
1343 fn draw(&self, scene: &Scene) {
1344 let mut state = self.borrow_mut();
1345
1346 if state.renderer.device_lost() {
1347 let raw_window = RawWindow {
1348 window: state.surface.id().as_ptr().cast::<std::ffi::c_void>(),
1349 display: state
1350 .surface
1351 .backend()
1352 .upgrade()
1353 .unwrap()
1354 .display_ptr()
1355 .cast::<std::ffi::c_void>(),
1356 };
1357 let display_handle = rwh::HasDisplayHandle::display_handle(&raw_window)
1358 .unwrap()
1359 .as_raw();
1360 let window_handle = rwh::HasWindowHandle::window_handle(&raw_window)
1361 .unwrap()
1362 .as_raw();
1363
1364 state
1365 .renderer
1366 .recover(display_handle, window_handle)
1367 .unwrap_or_else(|err| {
1368 panic!(
1369 "GPU device lost and recovery failed. \
1370 This may happen after system suspend/resume. \
1371 Please restart the application.\n\nError: {err}"
1372 )
1373 });
1374
1375 // The current scene references atlas textures that were cleared during recovery.
1376 // Skip this frame and let the next frame rebuild the scene with fresh textures.
1377 state.force_render_after_recovery = true;
1378 return;
1379 }
1380
1381 state.renderer.draw(scene);
1382 }
1383
1384 fn completed_frame(&self) {
1385 let state = self.borrow();
1386 state.surface.commit();
1387 }
1388
1389 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
1390 let state = self.borrow();
1391 state.renderer.sprite_atlas().clone()
1392 }
1393
1394 fn show_window_menu(&self, position: Point<Pixels>) {
1395 let state = self.borrow();
1396 let serial = state.client.get_serial(SerialKind::MousePress);
1397 if let Some(toplevel) = state.surface_state.toplevel() {
1398 toplevel.show_window_menu(
1399 &state.globals.seat,
1400 serial,
1401 f32::from(position.x) as i32,
1402 f32::from(position.y) as i32,
1403 );
1404 }
1405 }
1406
1407 fn start_window_move(&self) {
1408 let state = self.borrow();
1409 let serial = state.client.get_serial(SerialKind::MousePress);
1410 if let Some(toplevel) = state.surface_state.toplevel() {
1411 toplevel._move(&state.globals.seat, serial);
1412 }
1413 }
1414
1415 fn start_window_resize(&self, edge: gpui::ResizeEdge) {
1416 let state = self.borrow();
1417 if let Some(toplevel) = state.surface_state.toplevel() {
1418 toplevel.resize(
1419 &state.globals.seat,
1420 state.client.get_serial(SerialKind::MousePress),
1421 edge.to_xdg(),
1422 )
1423 }
1424 }
1425
1426 fn window_decorations(&self) -> Decorations {
1427 let state = self.borrow();
1428 match state.decorations {
1429 WindowDecorations::Server => Decorations::Server,
1430 WindowDecorations::Client => Decorations::Client {
1431 tiling: state.tiling,
1432 },
1433 }
1434 }
1435
1436 fn request_decorations(&self, decorations: WindowDecorations) {
1437 let mut state = self.borrow_mut();
1438 match state.surface_state.decoration().as_ref() {
1439 Some(decoration) => {
1440 decoration.set_mode(decorations.to_xdg());
1441 state.decorations = decorations;
1442 update_window(state);
1443 }
1444 None => {
1445 if matches!(decorations, WindowDecorations::Server) {
1446 log::info!(
1447 "Server-side decorations requested, but the Wayland server does not support them. Falling back to client-side decorations."
1448 );
1449 }
1450 state.decorations = WindowDecorations::Client;
1451 update_window(state);
1452 }
1453 }
1454 }
1455
1456 fn window_controls(&self) -> WindowControls {
1457 self.borrow().window_controls
1458 }
1459
1460 fn set_client_inset(&self, inset: Pixels) {
1461 let mut state = self.borrow_mut();
1462 if Some(inset) != state.client_inset {
1463 state.client_inset = Some(inset);
1464 update_window(state);
1465 }
1466 }
1467
1468 fn update_ime_position(&self, bounds: Bounds<Pixels>) {
1469 let state = self.borrow();
1470 state.client.update_ime_position(bounds);
1471 }
1472
1473 fn gpu_specs(&self) -> Option<GpuSpecs> {
1474 self.borrow().renderer.gpu_specs().into()
1475 }
1476}
1477
1478fn update_window(mut state: RefMut<WaylandWindowState>) {
1479 let opaque = !state.is_transparent();
1480
1481 state.renderer.update_transparency(!opaque);
1482 let opaque_area = state.window_bounds.map(|v| f32::from(v) as i32);
1483 opaque_area.inset(f32::from(state.inset()) as i32);
1484
1485 let region = state
1486 .globals
1487 .compositor
1488 .create_region(&state.globals.qh, ());
1489 region.add(
1490 opaque_area.origin.x,
1491 opaque_area.origin.y,
1492 opaque_area.size.width,
1493 opaque_area.size.height,
1494 );
1495
1496 // Note that rounded corners make this rectangle API hard to work with.
1497 // As this is common when using CSD, let's just disable this API.
1498 if state.background_appearance == WindowBackgroundAppearance::Opaque
1499 && state.decorations == WindowDecorations::Server
1500 {
1501 // Promise the compositor that this region of the window surface
1502 // contains no transparent pixels. This allows the compositor to skip
1503 // updating whatever is behind the surface for better performance.
1504 state.surface.set_opaque_region(Some(®ion));
1505 } else {
1506 state.surface.set_opaque_region(None);
1507 }
1508
1509 if let Some(ref blur_manager) = state.globals.blur_manager {
1510 if state.background_appearance == WindowBackgroundAppearance::Blurred {
1511 if state.blur.is_none() {
1512 let blur = blur_manager.create(&state.surface, &state.globals.qh, ());
1513 state.blur = Some(blur);
1514 }
1515 state.blur.as_ref().unwrap().commit();
1516 } else {
1517 // It probably doesn't hurt to clear the blur for opaque windows
1518 blur_manager.unset(&state.surface);
1519 if let Some(b) = state.blur.take() {
1520 b.release()
1521 }
1522 }
1523 }
1524
1525 region.destroy();
1526}
1527
1528pub(crate) trait WindowDecorationsExt {
1529 fn to_xdg(self) -> zxdg_toplevel_decoration_v1::Mode;
1530}
1531
1532impl WindowDecorationsExt for WindowDecorations {
1533 fn to_xdg(self) -> zxdg_toplevel_decoration_v1::Mode {
1534 match self {
1535 WindowDecorations::Client => zxdg_toplevel_decoration_v1::Mode::ClientSide,
1536 WindowDecorations::Server => zxdg_toplevel_decoration_v1::Mode::ServerSide,
1537 }
1538 }
1539}
1540
1541pub(crate) trait ResizeEdgeWaylandExt {
1542 fn to_xdg(self) -> xdg_toplevel::ResizeEdge;
1543}
1544
1545impl ResizeEdgeWaylandExt for ResizeEdge {
1546 fn to_xdg(self) -> xdg_toplevel::ResizeEdge {
1547 match self {
1548 ResizeEdge::Top => xdg_toplevel::ResizeEdge::Top,
1549 ResizeEdge::TopRight => xdg_toplevel::ResizeEdge::TopRight,
1550 ResizeEdge::Right => xdg_toplevel::ResizeEdge::Right,
1551 ResizeEdge::BottomRight => xdg_toplevel::ResizeEdge::BottomRight,
1552 ResizeEdge::Bottom => xdg_toplevel::ResizeEdge::Bottom,
1553 ResizeEdge::BottomLeft => xdg_toplevel::ResizeEdge::BottomLeft,
1554 ResizeEdge::Left => xdg_toplevel::ResizeEdge::Left,
1555 ResizeEdge::TopLeft => xdg_toplevel::ResizeEdge::TopLeft,
1556 }
1557 }
1558}
1559
1560/// The configuration event is in terms of the window geometry, which we are constantly
1561/// updating to account for the client decorations. But that's not the area we want to render
1562/// to, due to our intrusize CSD. So, here we calculate the 'actual' size, by adding back in the insets
1563fn compute_outer_size(
1564 inset: Pixels,
1565 new_size: Option<Size<Pixels>>,
1566 tiling: Tiling,
1567) -> Option<Size<Pixels>> {
1568 new_size.map(|mut new_size| {
1569 if !tiling.top {
1570 new_size.height += inset;
1571 }
1572 if !tiling.bottom {
1573 new_size.height += inset;
1574 }
1575 if !tiling.left {
1576 new_size.width += inset;
1577 }
1578 if !tiling.right {
1579 new_size.width += inset;
1580 }
1581
1582 new_size
1583 })
1584}
1585
1586fn inset_by_tiling(mut bounds: Bounds<Pixels>, inset: Pixels, tiling: Tiling) -> Bounds<Pixels> {
1587 if !tiling.top {
1588 bounds.origin.y += inset;
1589 bounds.size.height -= inset;
1590 }
1591 if !tiling.bottom {
1592 bounds.size.height -= inset;
1593 }
1594 if !tiling.left {
1595 bounds.origin.x += inset;
1596 bounds.size.width -= inset;
1597 }
1598 if !tiling.right {
1599 bounds.size.width -= inset;
1600 }
1601
1602 bounds
1603}