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 button_layout_changed: Option<Box<dyn FnMut()>>,
54}
55
56#[derive(Debug, Clone, Copy)]
57struct RawWindow {
58 window: *mut c_void,
59 display: *mut c_void,
60}
61
62// Safety: The raw pointers in RawWindow point to Wayland surface/display
63// which are valid for the window's lifetime. These are used only for
64// passing to wgpu which needs Send+Sync for surface creation.
65unsafe impl Send for RawWindow {}
66unsafe impl Sync for RawWindow {}
67
68impl rwh::HasWindowHandle for RawWindow {
69 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
70 let window = NonNull::new(self.window).unwrap();
71 let handle = rwh::WaylandWindowHandle::new(window);
72 Ok(unsafe { rwh::WindowHandle::borrow_raw(handle.into()) })
73 }
74}
75impl rwh::HasDisplayHandle for RawWindow {
76 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
77 let display = NonNull::new(self.display).unwrap();
78 let handle = rwh::WaylandDisplayHandle::new(display);
79 Ok(unsafe { rwh::DisplayHandle::borrow_raw(handle.into()) })
80 }
81}
82
83#[derive(Debug)]
84struct InProgressConfigure {
85 size: Option<Size<Pixels>>,
86 fullscreen: bool,
87 maximized: bool,
88 resizing: bool,
89 tiling: Tiling,
90}
91
92pub struct WaylandWindowState {
93 surface_state: WaylandSurfaceState,
94 acknowledged_first_configure: bool,
95 parent: Option<WaylandWindowStatePtr>,
96 children: FxHashSet<ObjectId>,
97 pub surface: wl_surface::WlSurface,
98 app_id: Option<String>,
99 appearance: WindowAppearance,
100 blur: Option<org_kde_kwin_blur::OrgKdeKwinBlur>,
101 viewport: Option<wp_viewport::WpViewport>,
102 outputs: HashMap<ObjectId, Output>,
103 display: Option<(ObjectId, Output)>,
104 globals: Globals,
105 renderer: WgpuRenderer,
106 bounds: Bounds<Pixels>,
107 scale: f32,
108 input_handler: Option<PlatformInputHandler>,
109 decorations: WindowDecorations,
110 background_appearance: WindowBackgroundAppearance,
111 fullscreen: bool,
112 maximized: bool,
113 tiling: Tiling,
114 window_bounds: Bounds<Pixels>,
115 client: WaylandClientStatePtr,
116 handle: AnyWindowHandle,
117 active: bool,
118 hovered: bool,
119 pub(crate) force_render_after_recovery: bool,
120 in_progress_configure: Option<InProgressConfigure>,
121 resize_throttle: bool,
122 in_progress_window_controls: Option<WindowControls>,
123 window_controls: WindowControls,
124 client_inset: Option<Pixels>,
125}
126
127pub enum WaylandSurfaceState {
128 Xdg(WaylandXdgSurfaceState),
129 LayerShell(WaylandLayerSurfaceState),
130}
131
132impl WaylandSurfaceState {
133 fn new(
134 surface: &wl_surface::WlSurface,
135 globals: &Globals,
136 params: &WindowParams,
137 parent: Option<WaylandWindowStatePtr>,
138 target_output: Option<wl_output::WlOutput>,
139 ) -> anyhow::Result<Self> {
140 // For layer_shell windows, create a layer surface instead of an xdg surface
141 if let WindowKind::LayerShell(options) = ¶ms.kind {
142 let Some(layer_shell) = globals.layer_shell.as_ref() else {
143 return Err(LayerShellNotSupportedError.into());
144 };
145
146 let layer_surface = layer_shell.get_layer_surface(
147 &surface,
148 target_output.as_ref(),
149 super::layer_shell::wayland_layer(options.layer),
150 options.namespace.clone(),
151 &globals.qh,
152 surface.id(),
153 );
154
155 let width = f32::from(params.bounds.size.width);
156 let height = f32::from(params.bounds.size.height);
157 layer_surface.set_size(width as u32, height as u32);
158
159 layer_surface.set_anchor(super::layer_shell::wayland_anchor(options.anchor));
160 layer_surface.set_keyboard_interactivity(
161 super::layer_shell::wayland_keyboard_interactivity(options.keyboard_interactivity),
162 );
163
164 if let Some(margin) = options.margin {
165 layer_surface.set_margin(
166 f32::from(margin.0) as i32,
167 f32::from(margin.1) as i32,
168 f32::from(margin.2) as i32,
169 f32::from(margin.3) as i32,
170 )
171 }
172
173 if let Some(exclusive_zone) = options.exclusive_zone {
174 layer_surface.set_exclusive_zone(f32::from(exclusive_zone) as i32);
175 }
176
177 if let Some(exclusive_edge) = options.exclusive_edge {
178 layer_surface
179 .set_exclusive_edge(super::layer_shell::wayland_anchor(exclusive_edge));
180 }
181
182 return Ok(WaylandSurfaceState::LayerShell(WaylandLayerSurfaceState {
183 layer_surface,
184 }));
185 }
186
187 // All other WindowKinds result in a regular xdg surface
188 let xdg_surface = globals
189 .wm_base
190 .get_xdg_surface(&surface, &globals.qh, surface.id());
191
192 let toplevel = xdg_surface.get_toplevel(&globals.qh, surface.id());
193 let xdg_parent = parent.as_ref().and_then(|w| w.toplevel());
194
195 if params.kind == WindowKind::Floating || params.kind == WindowKind::Dialog {
196 toplevel.set_parent(xdg_parent.as_ref());
197 }
198
199 let dialog = if params.kind == WindowKind::Dialog {
200 let dialog = globals.dialog.as_ref().map(|dialog| {
201 let xdg_dialog = dialog.get_xdg_dialog(&toplevel, &globals.qh, ());
202 xdg_dialog.set_modal();
203 xdg_dialog
204 });
205
206 if let Some(parent) = parent.as_ref() {
207 parent.add_child(surface.id());
208 }
209
210 dialog
211 } else {
212 None
213 };
214
215 if let Some(size) = params.window_min_size {
216 toplevel.set_min_size(f32::from(size.width) as i32, f32::from(size.height) as i32);
217 }
218
219 // Attempt to set up window decorations based on the requested configuration
220 let decoration = globals
221 .decoration_manager
222 .as_ref()
223 .map(|decoration_manager| {
224 decoration_manager.get_toplevel_decoration(&toplevel, &globals.qh, surface.id())
225 });
226
227 Ok(WaylandSurfaceState::Xdg(WaylandXdgSurfaceState {
228 xdg_surface,
229 toplevel,
230 decoration,
231 dialog,
232 }))
233 }
234}
235
236pub struct WaylandXdgSurfaceState {
237 xdg_surface: xdg_surface::XdgSurface,
238 toplevel: xdg_toplevel::XdgToplevel,
239 decoration: Option<zxdg_toplevel_decoration_v1::ZxdgToplevelDecorationV1>,
240 dialog: Option<XdgDialogV1>,
241}
242
243pub struct WaylandLayerSurfaceState {
244 layer_surface: zwlr_layer_surface_v1::ZwlrLayerSurfaceV1,
245}
246
247impl WaylandSurfaceState {
248 fn ack_configure(&self, serial: u32) {
249 match self {
250 WaylandSurfaceState::Xdg(WaylandXdgSurfaceState { xdg_surface, .. }) => {
251 xdg_surface.ack_configure(serial);
252 }
253 WaylandSurfaceState::LayerShell(WaylandLayerSurfaceState { layer_surface, .. }) => {
254 layer_surface.ack_configure(serial);
255 }
256 }
257 }
258
259 fn decoration(&self) -> Option<&zxdg_toplevel_decoration_v1::ZxdgToplevelDecorationV1> {
260 if let WaylandSurfaceState::Xdg(WaylandXdgSurfaceState { decoration, .. }) = self {
261 decoration.as_ref()
262 } else {
263 None
264 }
265 }
266
267 fn toplevel(&self) -> Option<&xdg_toplevel::XdgToplevel> {
268 if let WaylandSurfaceState::Xdg(WaylandXdgSurfaceState { toplevel, .. }) = self {
269 Some(toplevel)
270 } else {
271 None
272 }
273 }
274
275 fn set_geometry(&self, x: i32, y: i32, width: i32, height: i32) {
276 match self {
277 WaylandSurfaceState::Xdg(WaylandXdgSurfaceState { xdg_surface, .. }) => {
278 xdg_surface.set_window_geometry(x, y, width, height);
279 }
280 WaylandSurfaceState::LayerShell(WaylandLayerSurfaceState { layer_surface, .. }) => {
281 // cannot set window position of a layer surface
282 layer_surface.set_size(width as u32, height as u32);
283 }
284 }
285 }
286
287 fn destroy(&mut self) {
288 match self {
289 WaylandSurfaceState::Xdg(WaylandXdgSurfaceState {
290 xdg_surface,
291 toplevel,
292 decoration: _decoration,
293 dialog,
294 }) => {
295 // drop the dialog before toplevel so compositor can explicitly unapply it's effects
296 if let Some(dialog) = dialog {
297 dialog.destroy();
298 }
299
300 // The role object (toplevel) must always be destroyed before the xdg_surface.
301 // See https://wayland.app/protocols/xdg-shell#xdg_surface:request:destroy
302 toplevel.destroy();
303 xdg_surface.destroy();
304 }
305 WaylandSurfaceState::LayerShell(WaylandLayerSurfaceState { layer_surface }) => {
306 layer_surface.destroy();
307 }
308 }
309 }
310}
311
312#[derive(Clone)]
313pub struct WaylandWindowStatePtr {
314 state: Rc<RefCell<WaylandWindowState>>,
315 callbacks: Rc<RefCell<Callbacks>>,
316}
317
318impl WaylandWindowState {
319 pub(crate) fn new(
320 handle: AnyWindowHandle,
321 surface: wl_surface::WlSurface,
322 surface_state: WaylandSurfaceState,
323 appearance: WindowAppearance,
324 viewport: Option<wp_viewport::WpViewport>,
325 client: WaylandClientStatePtr,
326 globals: Globals,
327 gpu_context: gpui_wgpu::GpuContext,
328 compositor_gpu: Option<CompositorGpuHint>,
329 options: WindowParams,
330 parent: Option<WaylandWindowStatePtr>,
331 ) -> anyhow::Result<Self> {
332 let renderer = {
333 let raw_window = RawWindow {
334 window: surface.id().as_ptr().cast::<c_void>(),
335 display: surface
336 .backend()
337 .upgrade()
338 .unwrap()
339 .display_ptr()
340 .cast::<c_void>(),
341 };
342 let config = WgpuSurfaceConfig {
343 size: Size {
344 width: DevicePixels(f32::from(options.bounds.size.width) as i32),
345 height: DevicePixels(f32::from(options.bounds.size.height) as i32),
346 },
347 transparent: true,
348 preferred_present_mode: None,
349 };
350 WgpuRenderer::new(gpu_context, &raw_window, config, compositor_gpu)?
351 };
352
353 if let WaylandSurfaceState::Xdg(ref xdg_state) = surface_state {
354 if let Some(title) = options.titlebar.and_then(|titlebar| titlebar.title) {
355 xdg_state.toplevel.set_title(title.to_string());
356 }
357 // Set max window size based on the GPU's maximum texture dimension.
358 // This prevents the window from being resized larger than what the GPU can render.
359 let max_texture_size = renderer.max_texture_size() as i32;
360 xdg_state
361 .toplevel
362 .set_max_size(max_texture_size, max_texture_size);
363 }
364
365 Ok(Self {
366 surface_state,
367 acknowledged_first_configure: false,
368 parent,
369 children: FxHashSet::default(),
370 surface,
371 app_id: None,
372 blur: None,
373 viewport,
374 globals,
375 outputs: HashMap::default(),
376 display: None,
377 renderer,
378 bounds: options.bounds,
379 scale: 1.0,
380 input_handler: None,
381 decorations: WindowDecorations::Client,
382 background_appearance: WindowBackgroundAppearance::Opaque,
383 fullscreen: false,
384 maximized: false,
385 tiling: Tiling::default(),
386 window_bounds: options.bounds,
387 in_progress_configure: None,
388 resize_throttle: false,
389 client,
390 appearance,
391 handle,
392 active: false,
393 hovered: false,
394 force_render_after_recovery: false,
395 in_progress_window_controls: None,
396 window_controls: WindowControls::default(),
397 client_inset: None,
398 })
399 }
400
401 pub fn is_transparent(&self) -> bool {
402 self.decorations == WindowDecorations::Client
403 || self.background_appearance != WindowBackgroundAppearance::Opaque
404 }
405
406 pub fn primary_output_scale(&mut self) -> i32 {
407 let mut scale = 1;
408 let mut current_output = self.display.take();
409 for (id, output) in self.outputs.iter() {
410 if let Some((_, output_data)) = ¤t_output {
411 if output.scale > output_data.scale {
412 current_output = Some((id.clone(), output.clone()));
413 }
414 } else {
415 current_output = Some((id.clone(), output.clone()));
416 }
417 scale = scale.max(output.scale);
418 }
419 self.display = current_output;
420 scale
421 }
422
423 pub fn inset(&self) -> Pixels {
424 match self.decorations {
425 WindowDecorations::Server => px(0.0),
426 WindowDecorations::Client => self.client_inset.unwrap_or(px(0.0)),
427 }
428 }
429}
430
431pub(crate) struct WaylandWindow(pub WaylandWindowStatePtr);
432pub enum ImeInput {
433 InsertText(String),
434 SetMarkedText(String),
435 UnmarkText,
436 DeleteText,
437}
438
439impl Drop for WaylandWindow {
440 fn drop(&mut self) {
441 let mut state = self.0.state.borrow_mut();
442 let surface_id = state.surface.id();
443 if let Some(parent) = state.parent.as_ref() {
444 parent.state.borrow_mut().children.remove(&surface_id);
445 }
446
447 let client = state.client.clone();
448
449 state.renderer.destroy();
450
451 // Destroy blur first, this has no dependencies.
452 if let Some(blur) = &state.blur {
453 blur.release();
454 }
455
456 // Decorations must be destroyed before the xdg state.
457 // See https://wayland.app/protocols/xdg-decoration-unstable-v1#zxdg_toplevel_decoration_v1
458 if let Some(decoration) = &state.surface_state.decoration() {
459 decoration.destroy();
460 }
461
462 // Surface state might contain xdg_toplevel/xdg_surface which can be destroyed now that
463 // decorations are gone. layer_surface has no dependencies.
464 state.surface_state.destroy();
465
466 // Viewport must be destroyed before the wl_surface.
467 // See https://wayland.app/protocols/viewporter#wp_viewport
468 if let Some(viewport) = &state.viewport {
469 viewport.destroy();
470 }
471
472 // The wl_surface itself should always be destroyed last.
473 state.surface.destroy();
474
475 let state_ptr = self.0.clone();
476 state
477 .globals
478 .executor
479 .spawn(async move {
480 state_ptr.close();
481 client.drop_window(&surface_id)
482 })
483 .detach();
484 drop(state);
485 }
486}
487
488impl WaylandWindow {
489 fn borrow(&self) -> Ref<'_, WaylandWindowState> {
490 self.0.state.borrow()
491 }
492
493 fn borrow_mut(&self) -> RefMut<'_, WaylandWindowState> {
494 self.0.state.borrow_mut()
495 }
496
497 pub fn new(
498 handle: AnyWindowHandle,
499 globals: Globals,
500 gpu_context: gpui_wgpu::GpuContext,
501 compositor_gpu: Option<CompositorGpuHint>,
502 client: WaylandClientStatePtr,
503 params: WindowParams,
504 appearance: WindowAppearance,
505 parent: Option<WaylandWindowStatePtr>,
506 target_output: Option<wl_output::WlOutput>,
507 ) -> anyhow::Result<(Self, ObjectId)> {
508 let surface = globals.compositor.create_surface(&globals.qh, ());
509 let surface_state =
510 WaylandSurfaceState::new(&surface, &globals, ¶ms, parent.clone(), target_output)?;
511
512 if let Some(fractional_scale_manager) = globals.fractional_scale_manager.as_ref() {
513 fractional_scale_manager.get_fractional_scale(&surface, &globals.qh, surface.id());
514 }
515
516 let viewport = globals
517 .viewporter
518 .as_ref()
519 .map(|viewporter| viewporter.get_viewport(&surface, &globals.qh, ()));
520
521 let this = Self(WaylandWindowStatePtr {
522 state: Rc::new(RefCell::new(WaylandWindowState::new(
523 handle,
524 surface.clone(),
525 surface_state,
526 appearance,
527 viewport,
528 client,
529 globals,
530 gpu_context,
531 compositor_gpu,
532 params,
533 parent,
534 )?)),
535 callbacks: Rc::new(RefCell::new(Callbacks::default())),
536 });
537
538 // Kick things off
539 surface.commit();
540
541 Ok((this, surface.id()))
542 }
543}
544
545impl WaylandWindowStatePtr {
546 pub fn handle(&self) -> AnyWindowHandle {
547 self.state.borrow().handle
548 }
549
550 pub fn surface(&self) -> wl_surface::WlSurface {
551 self.state.borrow().surface.clone()
552 }
553
554 pub fn toplevel(&self) -> Option<xdg_toplevel::XdgToplevel> {
555 self.state.borrow().surface_state.toplevel().cloned()
556 }
557
558 pub fn ptr_eq(&self, other: &Self) -> bool {
559 Rc::ptr_eq(&self.state, &other.state)
560 }
561
562 pub fn add_child(&self, child: ObjectId) {
563 let mut state = self.state.borrow_mut();
564 state.children.insert(child);
565 }
566
567 pub fn is_blocked(&self) -> bool {
568 let state = self.state.borrow();
569 !state.children.is_empty()
570 }
571
572 pub fn frame(&self) {
573 let mut state = self.state.borrow_mut();
574 state.surface.frame(&state.globals.qh, state.surface.id());
575 state.resize_throttle = false;
576 let force_render = state.force_render_after_recovery;
577 state.force_render_after_recovery = false;
578 drop(state);
579
580 let mut cb = self.callbacks.borrow_mut();
581 if let Some(fun) = cb.request_frame.as_mut() {
582 fun(RequestFrameOptions {
583 force_render,
584 ..Default::default()
585 });
586 }
587 }
588
589 pub fn handle_xdg_surface_event(&self, event: xdg_surface::Event) {
590 if let xdg_surface::Event::Configure { serial } = event {
591 {
592 let mut state = self.state.borrow_mut();
593 if let Some(window_controls) = state.in_progress_window_controls.take() {
594 state.window_controls = window_controls;
595
596 drop(state);
597 let mut callbacks = self.callbacks.borrow_mut();
598 if let Some(appearance_changed) = callbacks.appearance_changed.as_mut() {
599 appearance_changed();
600 }
601 }
602 }
603 {
604 let mut state = self.state.borrow_mut();
605
606 if let Some(mut configure) = state.in_progress_configure.take() {
607 let got_unmaximized = state.maximized && !configure.maximized;
608 state.fullscreen = configure.fullscreen;
609 state.maximized = configure.maximized;
610 state.tiling = configure.tiling;
611 // Limit interactive resizes to once per vblank
612 if configure.resizing && state.resize_throttle {
613 state.surface_state.ack_configure(serial);
614 return;
615 } else if configure.resizing {
616 state.resize_throttle = true;
617 }
618 if !configure.fullscreen && !configure.maximized {
619 configure.size = if got_unmaximized {
620 Some(state.window_bounds.size)
621 } else {
622 compute_outer_size(state.inset(), configure.size, state.tiling)
623 };
624 if let Some(size) = configure.size {
625 state.window_bounds = Bounds {
626 origin: Point::default(),
627 size,
628 };
629 }
630 }
631 drop(state);
632 if let Some(size) = configure.size {
633 self.resize(size);
634 }
635 }
636 }
637 let mut state = self.state.borrow_mut();
638 state.surface_state.ack_configure(serial);
639
640 let window_geometry = inset_by_tiling(
641 state.bounds.map_origin(|_| px(0.0)),
642 state.inset(),
643 state.tiling,
644 )
645 .map(|v| f32::from(v) as i32)
646 .map_size(|v| if v <= 0 { 1 } else { v });
647
648 state.surface_state.set_geometry(
649 window_geometry.origin.x,
650 window_geometry.origin.y,
651 window_geometry.size.width,
652 window_geometry.size.height,
653 );
654
655 let request_frame_callback = !state.acknowledged_first_configure;
656 if request_frame_callback {
657 state.acknowledged_first_configure = true;
658 drop(state);
659 self.frame();
660 }
661 }
662 }
663
664 pub fn handle_toplevel_decoration_event(&self, event: zxdg_toplevel_decoration_v1::Event) {
665 if let zxdg_toplevel_decoration_v1::Event::Configure { mode } = event {
666 match mode {
667 WEnum::Value(zxdg_toplevel_decoration_v1::Mode::ServerSide) => {
668 self.state.borrow_mut().decorations = WindowDecorations::Server;
669 let callback = self.callbacks.borrow_mut().appearance_changed.take();
670 if let Some(mut fun) = callback {
671 fun();
672 self.callbacks.borrow_mut().appearance_changed = Some(fun);
673 }
674 }
675 WEnum::Value(zxdg_toplevel_decoration_v1::Mode::ClientSide) => {
676 self.state.borrow_mut().decorations = WindowDecorations::Client;
677 // Update background to be transparent
678 let callback = self.callbacks.borrow_mut().appearance_changed.take();
679 if let Some(mut fun) = callback {
680 fun();
681 self.callbacks.borrow_mut().appearance_changed = Some(fun);
682 }
683 }
684 WEnum::Value(_) => {
685 log::warn!("Unknown decoration mode");
686 }
687 WEnum::Unknown(v) => {
688 log::warn!("Unknown decoration mode: {}", v);
689 }
690 }
691 }
692 }
693
694 pub fn handle_fractional_scale_event(&self, event: wp_fractional_scale_v1::Event) {
695 if let wp_fractional_scale_v1::Event::PreferredScale { scale } = event {
696 self.rescale(scale as f32 / 120.0);
697 }
698 }
699
700 pub fn handle_toplevel_event(&self, event: xdg_toplevel::Event) -> bool {
701 match event {
702 xdg_toplevel::Event::Configure {
703 width,
704 height,
705 states,
706 } => {
707 let size = if width == 0 || height == 0 {
708 None
709 } else {
710 Some(size(px(width as f32), px(height as f32)))
711 };
712
713 let states = extract_states::<xdg_toplevel::State>(&states);
714
715 let mut tiling = Tiling::default();
716 let mut fullscreen = false;
717 let mut maximized = false;
718 let mut resizing = false;
719
720 for state in states {
721 match state {
722 xdg_toplevel::State::Maximized => {
723 maximized = true;
724 }
725 xdg_toplevel::State::Fullscreen => {
726 fullscreen = true;
727 }
728 xdg_toplevel::State::Resizing => resizing = true,
729 xdg_toplevel::State::TiledTop => {
730 tiling.top = true;
731 }
732 xdg_toplevel::State::TiledLeft => {
733 tiling.left = true;
734 }
735 xdg_toplevel::State::TiledRight => {
736 tiling.right = true;
737 }
738 xdg_toplevel::State::TiledBottom => {
739 tiling.bottom = true;
740 }
741 _ => {
742 // noop
743 }
744 }
745 }
746
747 if fullscreen || maximized {
748 tiling = Tiling::tiled();
749 }
750
751 let mut state = self.state.borrow_mut();
752 state.in_progress_configure = Some(InProgressConfigure {
753 size,
754 fullscreen,
755 maximized,
756 resizing,
757 tiling,
758 });
759
760 false
761 }
762 xdg_toplevel::Event::Close => {
763 let mut cb = self.callbacks.borrow_mut();
764 if let Some(mut should_close) = cb.should_close.take() {
765 let result = (should_close)();
766 cb.should_close = Some(should_close);
767 if result {
768 drop(cb);
769 self.close();
770 }
771 result
772 } else {
773 true
774 }
775 }
776 xdg_toplevel::Event::WmCapabilities { capabilities } => {
777 let mut window_controls = WindowControls::default();
778
779 let states = extract_states::<xdg_toplevel::WmCapabilities>(&capabilities);
780
781 for state in states {
782 match state {
783 xdg_toplevel::WmCapabilities::Maximize => {
784 window_controls.maximize = true;
785 }
786 xdg_toplevel::WmCapabilities::Minimize => {
787 window_controls.minimize = true;
788 }
789 xdg_toplevel::WmCapabilities::Fullscreen => {
790 window_controls.fullscreen = true;
791 }
792 xdg_toplevel::WmCapabilities::WindowMenu => {
793 window_controls.window_menu = true;
794 }
795 _ => {}
796 }
797 }
798
799 let mut state = self.state.borrow_mut();
800 state.in_progress_window_controls = Some(window_controls);
801 false
802 }
803 _ => false,
804 }
805 }
806
807 pub fn handle_layersurface_event(&self, event: zwlr_layer_surface_v1::Event) -> bool {
808 match event {
809 zwlr_layer_surface_v1::Event::Configure {
810 width,
811 height,
812 serial,
813 } => {
814 let size = if width == 0 || height == 0 {
815 None
816 } else {
817 Some(size(px(width as f32), px(height as f32)))
818 };
819
820 let mut state = self.state.borrow_mut();
821 state.in_progress_configure = Some(InProgressConfigure {
822 size,
823 fullscreen: false,
824 maximized: false,
825 resizing: false,
826 tiling: Tiling::default(),
827 });
828 drop(state);
829
830 // just do the same thing we'd do as an xdg_surface
831 self.handle_xdg_surface_event(xdg_surface::Event::Configure { serial });
832
833 false
834 }
835 zwlr_layer_surface_v1::Event::Closed => {
836 // unlike xdg, we don't have a choice here: the surface is closing.
837 true
838 }
839 _ => false,
840 }
841 }
842
843 #[allow(clippy::mutable_key_type)]
844 pub fn handle_surface_event(
845 &self,
846 event: wl_surface::Event,
847 outputs: HashMap<ObjectId, Output>,
848 ) {
849 let mut state = self.state.borrow_mut();
850
851 match event {
852 wl_surface::Event::Enter { output } => {
853 let id = output.id();
854
855 let Some(output) = outputs.get(&id) else {
856 return;
857 };
858
859 state.outputs.insert(id, output.clone());
860
861 let scale = state.primary_output_scale();
862
863 // We use `PreferredBufferScale` instead to set the scale if it's available
864 if state.surface.version() < wl_surface::EVT_PREFERRED_BUFFER_SCALE_SINCE {
865 state.surface.set_buffer_scale(scale);
866 drop(state);
867 self.rescale(scale as f32);
868 }
869 }
870 wl_surface::Event::Leave { output } => {
871 state.outputs.remove(&output.id());
872
873 let scale = state.primary_output_scale();
874
875 // We use `PreferredBufferScale` instead to set the scale if it's available
876 if state.surface.version() < wl_surface::EVT_PREFERRED_BUFFER_SCALE_SINCE {
877 state.surface.set_buffer_scale(scale);
878 drop(state);
879 self.rescale(scale as f32);
880 }
881 }
882 wl_surface::Event::PreferredBufferScale { factor } => {
883 // We use `WpFractionalScale` instead to set the scale if it's available
884 if state.globals.fractional_scale_manager.is_none() {
885 state.surface.set_buffer_scale(factor);
886 drop(state);
887 self.rescale(factor as f32);
888 }
889 }
890 _ => {}
891 }
892 }
893
894 pub fn handle_ime(&self, ime: ImeInput) {
895 if self.is_blocked() {
896 return;
897 }
898 let mut state = self.state.borrow_mut();
899 if let Some(mut input_handler) = state.input_handler.take() {
900 drop(state);
901 match ime {
902 ImeInput::InsertText(text) => {
903 input_handler.replace_text_in_range(None, &text);
904 }
905 ImeInput::SetMarkedText(text) => {
906 input_handler.replace_and_mark_text_in_range(None, &text, None);
907 }
908 ImeInput::UnmarkText => {
909 input_handler.unmark_text();
910 }
911 ImeInput::DeleteText => {
912 if let Some(marked) = input_handler.marked_text_range() {
913 input_handler.replace_text_in_range(Some(marked), "");
914 }
915 }
916 }
917 self.state.borrow_mut().input_handler = Some(input_handler);
918 }
919 }
920
921 pub fn get_ime_area(&self) -> Option<Bounds<Pixels>> {
922 let mut state = self.state.borrow_mut();
923 let mut bounds: Option<Bounds<Pixels>> = None;
924 if let Some(mut input_handler) = state.input_handler.take() {
925 drop(state);
926 if let Some(selection) = input_handler.marked_text_range() {
927 bounds = input_handler.bounds_for_range(selection.start..selection.start);
928 }
929 self.state.borrow_mut().input_handler = Some(input_handler);
930 }
931 bounds
932 }
933
934 pub fn set_size_and_scale(&self, size: Option<Size<Pixels>>, scale: Option<f32>) {
935 let (size, scale) = {
936 let mut state = self.state.borrow_mut();
937 if size.is_none_or(|size| size == state.bounds.size)
938 && scale.is_none_or(|scale| scale == state.scale)
939 {
940 return;
941 }
942 if let Some(size) = size {
943 state.bounds.size = size;
944 }
945 if let Some(scale) = scale {
946 state.scale = scale;
947 }
948 let device_bounds = state.bounds.to_device_pixels(state.scale);
949 state.renderer.update_drawable_size(device_bounds.size);
950 (state.bounds.size, state.scale)
951 };
952
953 let callback = self.callbacks.borrow_mut().resize.take();
954 if let Some(mut fun) = callback {
955 fun(size, scale);
956 self.callbacks.borrow_mut().resize = Some(fun);
957 }
958
959 {
960 let state = self.state.borrow();
961 if let Some(viewport) = &state.viewport {
962 viewport
963 .set_destination(f32::from(size.width) as i32, f32::from(size.height) as i32);
964 }
965 }
966 }
967
968 pub fn resize(&self, size: Size<Pixels>) {
969 self.set_size_and_scale(Some(size), None);
970 }
971
972 pub fn rescale(&self, scale: f32) {
973 self.set_size_and_scale(None, Some(scale));
974 }
975
976 pub fn close(&self) {
977 let state = self.state.borrow();
978 let client = state.client.get_client();
979 #[allow(clippy::mutable_key_type)]
980 let children = state.children.clone();
981 drop(state);
982
983 for child in children {
984 let mut client_state = client.borrow_mut();
985 let window = get_window(&mut client_state, &child);
986 drop(client_state);
987
988 if let Some(child) = window {
989 child.close();
990 }
991 }
992 let mut callbacks = self.callbacks.borrow_mut();
993 if let Some(fun) = callbacks.close.take() {
994 fun()
995 }
996 }
997
998 pub fn handle_input(&self, input: PlatformInput) {
999 if self.is_blocked() {
1000 return;
1001 }
1002 let callback = self.callbacks.borrow_mut().input.take();
1003 if let Some(mut fun) = callback {
1004 let result = fun(input.clone());
1005 self.callbacks.borrow_mut().input = Some(fun);
1006 if !result.propagate {
1007 return;
1008 }
1009 }
1010 if let PlatformInput::KeyDown(event) = input
1011 && event.keystroke.modifiers.is_subset_of(&Modifiers::shift())
1012 && let Some(key_char) = &event.keystroke.key_char
1013 {
1014 let mut state = self.state.borrow_mut();
1015 if let Some(mut input_handler) = state.input_handler.take() {
1016 drop(state);
1017 input_handler.replace_text_in_range(None, key_char);
1018 self.state.borrow_mut().input_handler = Some(input_handler);
1019 }
1020 }
1021 }
1022
1023 pub fn set_focused(&self, focus: bool) {
1024 self.state.borrow_mut().active = focus;
1025 let callback = self.callbacks.borrow_mut().active_status_change.take();
1026 if let Some(mut fun) = callback {
1027 fun(focus);
1028 self.callbacks.borrow_mut().active_status_change = Some(fun);
1029 }
1030 }
1031
1032 pub fn set_hovered(&self, focus: bool) {
1033 let callback = self.callbacks.borrow_mut().hover_status_change.take();
1034 if let Some(mut fun) = callback {
1035 fun(focus);
1036 self.callbacks.borrow_mut().hover_status_change = Some(fun);
1037 }
1038 }
1039
1040 pub fn set_appearance(&mut self, appearance: WindowAppearance) {
1041 self.state.borrow_mut().appearance = appearance;
1042
1043 let callback = self.callbacks.borrow_mut().appearance_changed.take();
1044 if let Some(mut fun) = callback {
1045 fun();
1046 self.callbacks.borrow_mut().appearance_changed = Some(fun);
1047 }
1048 }
1049
1050 pub fn set_button_layout(&self) {
1051 let callback = self.callbacks.borrow_mut().button_layout_changed.take();
1052 if let Some(mut fun) = callback {
1053 fun();
1054 self.callbacks.borrow_mut().button_layout_changed = Some(fun);
1055 }
1056 }
1057
1058 pub fn primary_output_scale(&self) -> i32 {
1059 self.state.borrow_mut().primary_output_scale()
1060 }
1061}
1062
1063fn extract_states<'a, S: TryFrom<u32> + 'a>(states: &'a [u8]) -> impl Iterator<Item = S> + 'a
1064where
1065 <S as TryFrom<u32>>::Error: 'a,
1066{
1067 states
1068 .chunks_exact(4)
1069 .flat_map(TryInto::<[u8; 4]>::try_into)
1070 .map(u32::from_ne_bytes)
1071 .flat_map(S::try_from)
1072}
1073
1074impl rwh::HasWindowHandle for WaylandWindow {
1075 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
1076 let surface = self.0.surface().id().as_ptr() as *mut libc::c_void;
1077 let c_ptr = NonNull::new(surface).ok_or(rwh::HandleError::Unavailable)?;
1078 let handle = rwh::WaylandWindowHandle::new(c_ptr);
1079 let raw_handle = rwh::RawWindowHandle::Wayland(handle);
1080 Ok(unsafe { rwh::WindowHandle::borrow_raw(raw_handle) })
1081 }
1082}
1083
1084impl rwh::HasDisplayHandle for WaylandWindow {
1085 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
1086 let display = self
1087 .0
1088 .surface()
1089 .backend()
1090 .upgrade()
1091 .ok_or(rwh::HandleError::Unavailable)?
1092 .display_ptr() as *mut libc::c_void;
1093
1094 let c_ptr = NonNull::new(display).ok_or(rwh::HandleError::Unavailable)?;
1095 let handle = rwh::WaylandDisplayHandle::new(c_ptr);
1096 let raw_handle = rwh::RawDisplayHandle::Wayland(handle);
1097 Ok(unsafe { rwh::DisplayHandle::borrow_raw(raw_handle) })
1098 }
1099}
1100
1101impl PlatformWindow for WaylandWindow {
1102 fn bounds(&self) -> Bounds<Pixels> {
1103 self.borrow().bounds
1104 }
1105
1106 fn is_maximized(&self) -> bool {
1107 self.borrow().maximized
1108 }
1109
1110 fn 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 drop(state);
1118 WindowBounds::Windowed(self.bounds())
1119 }
1120 }
1121
1122 fn inner_window_bounds(&self) -> WindowBounds {
1123 let state = self.borrow();
1124 if state.fullscreen {
1125 WindowBounds::Fullscreen(state.window_bounds)
1126 } else if state.maximized {
1127 WindowBounds::Maximized(state.window_bounds)
1128 } else {
1129 let inset = state.inset();
1130 drop(state);
1131 WindowBounds::Windowed(self.bounds().inset(inset))
1132 }
1133 }
1134
1135 fn content_size(&self) -> Size<Pixels> {
1136 self.borrow().bounds.size
1137 }
1138
1139 fn resize(&mut self, size: Size<Pixels>) {
1140 let state = self.borrow();
1141 let state_ptr = self.0.clone();
1142
1143 // Keep window geometry consistent with configure handling. On Wayland, window geometry is
1144 // surface-local: resizing should not attempt to translate the window; the compositor
1145 // controls placement. We also account for client-side decoration insets and tiling.
1146 let window_geometry = inset_by_tiling(
1147 Bounds {
1148 origin: Point::default(),
1149 size,
1150 },
1151 state.inset(),
1152 state.tiling,
1153 )
1154 .map(|v| f32::from(v) as i32)
1155 .map_size(|v| if v <= 0 { 1 } else { v });
1156
1157 state.surface_state.set_geometry(
1158 window_geometry.origin.x,
1159 window_geometry.origin.y,
1160 window_geometry.size.width,
1161 window_geometry.size.height,
1162 );
1163
1164 state
1165 .globals
1166 .executor
1167 .spawn(async move { state_ptr.resize(size) })
1168 .detach();
1169 }
1170
1171 fn scale_factor(&self) -> f32 {
1172 self.borrow().scale
1173 }
1174
1175 fn appearance(&self) -> WindowAppearance {
1176 self.borrow().appearance
1177 }
1178
1179 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
1180 let state = self.borrow();
1181 state.display.as_ref().map(|(id, display)| {
1182 Rc::new(WaylandDisplay {
1183 id: id.clone(),
1184 name: display.name.clone(),
1185 bounds: display.bounds.to_pixels(state.scale),
1186 }) as Rc<dyn PlatformDisplay>
1187 })
1188 }
1189
1190 fn mouse_position(&self) -> Point<Pixels> {
1191 self.borrow()
1192 .client
1193 .get_client()
1194 .borrow()
1195 .mouse_location
1196 .unwrap_or_default()
1197 }
1198
1199 fn modifiers(&self) -> Modifiers {
1200 self.borrow().client.get_client().borrow().modifiers
1201 }
1202
1203 fn capslock(&self) -> Capslock {
1204 self.borrow().client.get_client().borrow().capslock
1205 }
1206
1207 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
1208 self.borrow_mut().input_handler = Some(input_handler);
1209 }
1210
1211 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
1212 self.borrow_mut().input_handler.take()
1213 }
1214
1215 fn prompt(
1216 &self,
1217 _level: PromptLevel,
1218 _msg: &str,
1219 _detail: Option<&str>,
1220 _answers: &[PromptButton],
1221 ) -> Option<Receiver<usize>> {
1222 None
1223 }
1224
1225 fn activate(&self) {
1226 // Try to request an activation token. Even though the activation is likely going to be rejected,
1227 // KWin and Mutter can use the app_id to visually indicate we're requesting attention.
1228 let state = self.borrow();
1229 if let (Some(activation), Some(app_id)) = (&state.globals.activation, state.app_id.clone())
1230 {
1231 state.client.set_pending_activation(state.surface.id());
1232 let token = activation.get_activation_token(&state.globals.qh, ());
1233 // The serial isn't exactly important here, since the activation is probably going to be rejected anyway.
1234 let serial = state.client.get_serial(SerialKind::MousePress);
1235 token.set_app_id(app_id);
1236 token.set_serial(serial, &state.globals.seat);
1237 token.set_surface(&state.surface);
1238 token.commit();
1239 }
1240 }
1241
1242 fn is_active(&self) -> bool {
1243 self.borrow().active
1244 }
1245
1246 fn is_hovered(&self) -> bool {
1247 self.borrow().hovered
1248 }
1249
1250 fn set_title(&mut self, title: &str) {
1251 if let Some(toplevel) = self.borrow().surface_state.toplevel() {
1252 toplevel.set_title(title.to_string());
1253 }
1254 }
1255
1256 fn set_app_id(&mut self, app_id: &str) {
1257 let mut state = self.borrow_mut();
1258 if let Some(toplevel) = state.surface_state.toplevel() {
1259 toplevel.set_app_id(app_id.to_owned());
1260 }
1261 state.app_id = Some(app_id.to_owned());
1262 }
1263
1264 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
1265 let mut state = self.borrow_mut();
1266 state.background_appearance = background_appearance;
1267 update_window(state);
1268 }
1269
1270 fn background_appearance(&self) -> WindowBackgroundAppearance {
1271 self.borrow().background_appearance
1272 }
1273
1274 fn is_subpixel_rendering_supported(&self) -> bool {
1275 let client = self.borrow().client.get_client();
1276 let state = client.borrow();
1277 state
1278 .gpu_context
1279 .borrow()
1280 .as_ref()
1281 .is_some_and(|ctx| ctx.supports_dual_source_blending())
1282 }
1283
1284 fn minimize(&self) {
1285 if let Some(toplevel) = self.borrow().surface_state.toplevel() {
1286 toplevel.set_minimized();
1287 }
1288 }
1289
1290 fn zoom(&self) {
1291 let state = self.borrow();
1292 if let Some(toplevel) = state.surface_state.toplevel() {
1293 if !state.maximized {
1294 toplevel.set_maximized();
1295 } else {
1296 toplevel.unset_maximized();
1297 }
1298 }
1299 }
1300
1301 fn toggle_fullscreen(&self) {
1302 let state = self.borrow();
1303 if let Some(toplevel) = state.surface_state.toplevel() {
1304 if !state.fullscreen {
1305 toplevel.set_fullscreen(None);
1306 } else {
1307 toplevel.unset_fullscreen();
1308 }
1309 }
1310 }
1311
1312 fn is_fullscreen(&self) -> bool {
1313 self.borrow().fullscreen
1314 }
1315
1316 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
1317 self.0.callbacks.borrow_mut().request_frame = Some(callback);
1318 }
1319
1320 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> gpui::DispatchEventResult>) {
1321 self.0.callbacks.borrow_mut().input = Some(callback);
1322 }
1323
1324 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1325 self.0.callbacks.borrow_mut().active_status_change = Some(callback);
1326 }
1327
1328 fn on_hover_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1329 self.0.callbacks.borrow_mut().hover_status_change = Some(callback);
1330 }
1331
1332 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
1333 self.0.callbacks.borrow_mut().resize = Some(callback);
1334 }
1335
1336 fn on_moved(&self, callback: Box<dyn FnMut()>) {
1337 self.0.callbacks.borrow_mut().moved = Some(callback);
1338 }
1339
1340 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
1341 self.0.callbacks.borrow_mut().should_close = Some(callback);
1342 }
1343
1344 fn on_close(&self, callback: Box<dyn FnOnce()>) {
1345 self.0.callbacks.borrow_mut().close = Some(callback);
1346 }
1347
1348 fn on_hit_test_window_control(&self, _callback: Box<dyn FnMut() -> Option<WindowControlArea>>) {
1349 }
1350
1351 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
1352 self.0.callbacks.borrow_mut().appearance_changed = Some(callback);
1353 }
1354
1355 fn on_button_layout_changed(&self, callback: Box<dyn FnMut()>) {
1356 self.0.callbacks.borrow_mut().button_layout_changed = Some(callback);
1357 }
1358
1359 fn draw(&self, scene: &Scene) {
1360 let mut state = self.borrow_mut();
1361
1362 if state.renderer.device_lost() {
1363 let raw_window = RawWindow {
1364 window: state.surface.id().as_ptr().cast::<std::ffi::c_void>(),
1365 display: state
1366 .surface
1367 .backend()
1368 .upgrade()
1369 .unwrap()
1370 .display_ptr()
1371 .cast::<std::ffi::c_void>(),
1372 };
1373 state.renderer.recover(&raw_window).unwrap_or_else(|err| {
1374 panic!(
1375 "GPU device lost and recovery failed. \
1376 This may happen after system suspend/resume. \
1377 Please restart the application.\n\nError: {err}"
1378 )
1379 });
1380
1381 // The current scene references atlas textures that were cleared during recovery.
1382 // Skip this frame and let the next frame rebuild the scene with fresh textures.
1383 state.force_render_after_recovery = true;
1384 return;
1385 }
1386
1387 state.renderer.draw(scene);
1388 }
1389
1390 fn completed_frame(&self) {
1391 let state = self.borrow();
1392 state.surface.commit();
1393 }
1394
1395 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
1396 let state = self.borrow();
1397 state.renderer.sprite_atlas().clone()
1398 }
1399
1400 fn show_window_menu(&self, position: Point<Pixels>) {
1401 let state = self.borrow();
1402 let serial = state.client.get_serial(SerialKind::MousePress);
1403 if let Some(toplevel) = state.surface_state.toplevel() {
1404 toplevel.show_window_menu(
1405 &state.globals.seat,
1406 serial,
1407 f32::from(position.x) as i32,
1408 f32::from(position.y) as i32,
1409 );
1410 }
1411 }
1412
1413 fn start_window_move(&self) {
1414 let state = self.borrow();
1415 let serial = state.client.get_serial(SerialKind::MousePress);
1416 if let Some(toplevel) = state.surface_state.toplevel() {
1417 toplevel._move(&state.globals.seat, serial);
1418 }
1419 }
1420
1421 fn start_window_resize(&self, edge: gpui::ResizeEdge) {
1422 let state = self.borrow();
1423 if let Some(toplevel) = state.surface_state.toplevel() {
1424 toplevel.resize(
1425 &state.globals.seat,
1426 state.client.get_serial(SerialKind::MousePress),
1427 edge.to_xdg(),
1428 )
1429 }
1430 }
1431
1432 fn window_decorations(&self) -> Decorations {
1433 let state = self.borrow();
1434 match state.decorations {
1435 WindowDecorations::Server => Decorations::Server,
1436 WindowDecorations::Client => Decorations::Client {
1437 tiling: state.tiling,
1438 },
1439 }
1440 }
1441
1442 fn request_decorations(&self, decorations: WindowDecorations) {
1443 let mut state = self.borrow_mut();
1444 match state.surface_state.decoration().as_ref() {
1445 Some(decoration) => {
1446 decoration.set_mode(decorations.to_xdg());
1447 state.decorations = decorations;
1448 update_window(state);
1449 }
1450 None => {
1451 if matches!(decorations, WindowDecorations::Server) {
1452 log::info!(
1453 "Server-side decorations requested, but the Wayland server does not support them. Falling back to client-side decorations."
1454 );
1455 }
1456 state.decorations = WindowDecorations::Client;
1457 update_window(state);
1458 }
1459 }
1460 }
1461
1462 fn window_controls(&self) -> WindowControls {
1463 self.borrow().window_controls
1464 }
1465
1466 fn set_client_inset(&self, inset: Pixels) {
1467 let mut state = self.borrow_mut();
1468 if Some(inset) != state.client_inset {
1469 state.client_inset = Some(inset);
1470 update_window(state);
1471 }
1472 }
1473
1474 fn update_ime_position(&self, bounds: Bounds<Pixels>) {
1475 let state = self.borrow();
1476 state.client.update_ime_position(bounds);
1477 }
1478
1479 fn gpu_specs(&self) -> Option<GpuSpecs> {
1480 self.borrow().renderer.gpu_specs().into()
1481 }
1482
1483 fn play_system_bell(&self) {
1484 let state = self.borrow();
1485 let surface = if state.surface_state.toplevel().is_some() {
1486 Some(&state.surface)
1487 } else {
1488 None
1489 };
1490 if let Some(bell) = state.globals.system_bell.as_ref() {
1491 bell.ring(surface);
1492 }
1493 }
1494}
1495
1496fn update_window(mut state: RefMut<WaylandWindowState>) {
1497 let opaque = !state.is_transparent();
1498
1499 state.renderer.update_transparency(!opaque);
1500 let opaque_area = state.window_bounds.map(|v| f32::from(v) as i32);
1501 opaque_area.inset(f32::from(state.inset()) as i32);
1502
1503 let region = state
1504 .globals
1505 .compositor
1506 .create_region(&state.globals.qh, ());
1507 region.add(
1508 opaque_area.origin.x,
1509 opaque_area.origin.y,
1510 opaque_area.size.width,
1511 opaque_area.size.height,
1512 );
1513
1514 // Note that rounded corners make this rectangle API hard to work with.
1515 // As this is common when using CSD, let's just disable this API.
1516 if state.background_appearance == WindowBackgroundAppearance::Opaque
1517 && state.decorations == WindowDecorations::Server
1518 {
1519 // Promise the compositor that this region of the window surface
1520 // contains no transparent pixels. This allows the compositor to skip
1521 // updating whatever is behind the surface for better performance.
1522 state.surface.set_opaque_region(Some(®ion));
1523 } else {
1524 state.surface.set_opaque_region(None);
1525 }
1526
1527 if let Some(ref blur_manager) = state.globals.blur_manager {
1528 if state.background_appearance == WindowBackgroundAppearance::Blurred {
1529 if state.blur.is_none() {
1530 let blur = blur_manager.create(&state.surface, &state.globals.qh, ());
1531 state.blur = Some(blur);
1532 }
1533 state.blur.as_ref().unwrap().commit();
1534 } else {
1535 // It probably doesn't hurt to clear the blur for opaque windows
1536 blur_manager.unset(&state.surface);
1537 if let Some(b) = state.blur.take() {
1538 b.release()
1539 }
1540 }
1541 }
1542
1543 region.destroy();
1544}
1545
1546pub(crate) trait WindowDecorationsExt {
1547 fn to_xdg(self) -> zxdg_toplevel_decoration_v1::Mode;
1548}
1549
1550impl WindowDecorationsExt for WindowDecorations {
1551 fn to_xdg(self) -> zxdg_toplevel_decoration_v1::Mode {
1552 match self {
1553 WindowDecorations::Client => zxdg_toplevel_decoration_v1::Mode::ClientSide,
1554 WindowDecorations::Server => zxdg_toplevel_decoration_v1::Mode::ServerSide,
1555 }
1556 }
1557}
1558
1559pub(crate) trait ResizeEdgeWaylandExt {
1560 fn to_xdg(self) -> xdg_toplevel::ResizeEdge;
1561}
1562
1563impl ResizeEdgeWaylandExt for ResizeEdge {
1564 fn to_xdg(self) -> xdg_toplevel::ResizeEdge {
1565 match self {
1566 ResizeEdge::Top => xdg_toplevel::ResizeEdge::Top,
1567 ResizeEdge::TopRight => xdg_toplevel::ResizeEdge::TopRight,
1568 ResizeEdge::Right => xdg_toplevel::ResizeEdge::Right,
1569 ResizeEdge::BottomRight => xdg_toplevel::ResizeEdge::BottomRight,
1570 ResizeEdge::Bottom => xdg_toplevel::ResizeEdge::Bottom,
1571 ResizeEdge::BottomLeft => xdg_toplevel::ResizeEdge::BottomLeft,
1572 ResizeEdge::Left => xdg_toplevel::ResizeEdge::Left,
1573 ResizeEdge::TopLeft => xdg_toplevel::ResizeEdge::TopLeft,
1574 }
1575 }
1576}
1577
1578/// The configuration event is in terms of the window geometry, which we are constantly
1579/// updating to account for the client decorations. But that's not the area we want to render
1580/// to, due to our intrusize CSD. So, here we calculate the 'actual' size, by adding back in the insets
1581fn compute_outer_size(
1582 inset: Pixels,
1583 new_size: Option<Size<Pixels>>,
1584 tiling: Tiling,
1585) -> Option<Size<Pixels>> {
1586 new_size.map(|mut new_size| {
1587 if !tiling.top {
1588 new_size.height += inset;
1589 }
1590 if !tiling.bottom {
1591 new_size.height += inset;
1592 }
1593 if !tiling.left {
1594 new_size.width += inset;
1595 }
1596 if !tiling.right {
1597 new_size.width += inset;
1598 }
1599
1600 new_size
1601 })
1602}
1603
1604fn inset_by_tiling(mut bounds: Bounds<Pixels>, inset: Pixels, tiling: Tiling) -> Bounds<Pixels> {
1605 if !tiling.top {
1606 bounds.origin.y += inset;
1607 bounds.size.height -= inset;
1608 }
1609 if !tiling.bottom {
1610 bounds.size.height -= inset;
1611 }
1612 if !tiling.left {
1613 bounds.origin.x += inset;
1614 bounds.size.width -= inset;
1615 }
1616 if !tiling.right {
1617 bounds.size.width -= inset;
1618 }
1619
1620 bounds
1621}