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