1use anyhow::{Context as _, anyhow};
2use x11rb::connection::RequestConnection;
3
4use crate::linux::X11ClientStatePtr;
5use gpui::{
6 AnyWindowHandle, Bounds, Decorations, DevicePixels, ForegroundExecutor, GpuSpecs, Modifiers,
7 Pixels, PlatformAtlas, PlatformDisplay, PlatformInput, PlatformInputHandler, PlatformWindow,
8 Point, PromptButton, PromptLevel, RequestFrameOptions, ResizeEdge, ScaledPixels, Scene, Size,
9 Tiling, WindowAppearance, WindowBackgroundAppearance, WindowBounds, WindowControlArea,
10 WindowDecorations, WindowKind, WindowParams, px,
11};
12use gpui_wgpu::{CompositorGpuHint, WgpuRenderer, WgpuSurfaceConfig};
13
14use collections::FxHashSet;
15use raw_window_handle as rwh;
16use util::{ResultExt, maybe};
17use x11rb::{
18 connection::Connection,
19 cookie::{Cookie, VoidCookie},
20 errors::ConnectionError,
21 properties::WmSizeHints,
22 protocol::{
23 sync,
24 xinput::{self, ConnectionExt as _},
25 xproto::{self, ClientMessageEvent, ConnectionExt, TranslateCoordinatesReply},
26 },
27 wrapper::ConnectionExt as _,
28 xcb_ffi::XCBConnection,
29};
30
31use std::{
32 cell::RefCell, ffi::c_void, fmt::Display, num::NonZeroU32, ptr::NonNull, rc::Rc, sync::Arc,
33};
34
35use super::{X11Display, XINPUT_ALL_DEVICE_GROUPS, XINPUT_ALL_DEVICES};
36
37x11rb::atom_manager! {
38 pub XcbAtoms: AtomsCookie {
39 XA_ATOM,
40 XdndAware,
41 XdndStatus,
42 XdndEnter,
43 XdndLeave,
44 XdndPosition,
45 XdndSelection,
46 XdndDrop,
47 XdndFinished,
48 XdndTypeList,
49 XdndActionCopy,
50 TextUriList: b"text/uri-list",
51 UTF8_STRING,
52 TEXT,
53 STRING,
54 TEXT_PLAIN_UTF8: b"text/plain;charset=utf-8",
55 TEXT_PLAIN: b"text/plain",
56 XDND_DATA,
57 WM_PROTOCOLS,
58 WM_DELETE_WINDOW,
59 WM_CHANGE_STATE,
60 WM_TRANSIENT_FOR,
61 _NET_WM_PID,
62 _NET_WM_NAME,
63 _NET_WM_STATE,
64 _NET_WM_STATE_MAXIMIZED_VERT,
65 _NET_WM_STATE_MAXIMIZED_HORZ,
66 _NET_WM_STATE_FULLSCREEN,
67 _NET_WM_STATE_HIDDEN,
68 _NET_WM_STATE_FOCUSED,
69 _NET_ACTIVE_WINDOW,
70 _NET_WM_SYNC_REQUEST,
71 _NET_WM_SYNC_REQUEST_COUNTER,
72 _NET_WM_BYPASS_COMPOSITOR,
73 _NET_WM_MOVERESIZE,
74 _NET_WM_WINDOW_TYPE,
75 _NET_WM_WINDOW_TYPE_NOTIFICATION,
76 _NET_WM_WINDOW_TYPE_DIALOG,
77 _NET_WM_STATE_MODAL,
78 _NET_WM_SYNC,
79 _NET_SUPPORTED,
80 _MOTIF_WM_HINTS,
81 _GTK_SHOW_WINDOW_MENU,
82 _GTK_FRAME_EXTENTS,
83 _GTK_EDGE_CONSTRAINTS,
84 _NET_CLIENT_LIST_STACKING,
85 }
86}
87
88fn query_render_extent(
89 xcb: &Rc<XCBConnection>,
90 x_window: xproto::Window,
91) -> anyhow::Result<Size<DevicePixels>> {
92 let reply = get_reply(|| "X11 GetGeometry failed.", xcb.get_geometry(x_window))?;
93 Ok(Size {
94 width: DevicePixels(reply.width as i32),
95 height: DevicePixels(reply.height as i32),
96 })
97}
98
99fn resize_edge_to_moveresize(edge: ResizeEdge) -> u32 {
100 match edge {
101 ResizeEdge::TopLeft => 0,
102 ResizeEdge::Top => 1,
103 ResizeEdge::TopRight => 2,
104 ResizeEdge::Right => 3,
105 ResizeEdge::BottomRight => 4,
106 ResizeEdge::Bottom => 5,
107 ResizeEdge::BottomLeft => 6,
108 ResizeEdge::Left => 7,
109 }
110}
111
112#[derive(Debug)]
113struct EdgeConstraints {
114 top_tiled: bool,
115 #[allow(dead_code)]
116 top_resizable: bool,
117
118 right_tiled: bool,
119 #[allow(dead_code)]
120 right_resizable: bool,
121
122 bottom_tiled: bool,
123 #[allow(dead_code)]
124 bottom_resizable: bool,
125
126 left_tiled: bool,
127 #[allow(dead_code)]
128 left_resizable: bool,
129}
130
131impl EdgeConstraints {
132 fn from_atom(atom: u32) -> Self {
133 EdgeConstraints {
134 top_tiled: (atom & (1 << 0)) != 0,
135 top_resizable: (atom & (1 << 1)) != 0,
136 right_tiled: (atom & (1 << 2)) != 0,
137 right_resizable: (atom & (1 << 3)) != 0,
138 bottom_tiled: (atom & (1 << 4)) != 0,
139 bottom_resizable: (atom & (1 << 5)) != 0,
140 left_tiled: (atom & (1 << 6)) != 0,
141 left_resizable: (atom & (1 << 7)) != 0,
142 }
143 }
144
145 fn to_tiling(&self) -> Tiling {
146 Tiling {
147 top: self.top_tiled,
148 right: self.right_tiled,
149 bottom: self.bottom_tiled,
150 left: self.left_tiled,
151 }
152 }
153}
154
155#[derive(Copy, Clone, Debug)]
156struct Visual {
157 id: xproto::Visualid,
158 colormap: u32,
159 depth: u8,
160}
161
162struct VisualSet {
163 inherit: Visual,
164 opaque: Option<Visual>,
165 transparent: Option<Visual>,
166 root: u32,
167 black_pixel: u32,
168}
169
170fn find_visuals(xcb: &XCBConnection, screen_index: usize) -> VisualSet {
171 let screen = &xcb.setup().roots[screen_index];
172 let mut set = VisualSet {
173 inherit: Visual {
174 id: screen.root_visual,
175 colormap: screen.default_colormap,
176 depth: screen.root_depth,
177 },
178 opaque: None,
179 transparent: None,
180 root: screen.root,
181 black_pixel: screen.black_pixel,
182 };
183
184 for depth_info in screen.allowed_depths.iter() {
185 for visual_type in depth_info.visuals.iter() {
186 let visual = Visual {
187 id: visual_type.visual_id,
188 colormap: 0,
189 depth: depth_info.depth,
190 };
191 log::debug!(
192 "Visual id: {}, class: {:?}, depth: {}, bits_per_value: {}, masks: 0x{:x} 0x{:x} 0x{:x}",
193 visual_type.visual_id,
194 visual_type.class,
195 depth_info.depth,
196 visual_type.bits_per_rgb_value,
197 visual_type.red_mask,
198 visual_type.green_mask,
199 visual_type.blue_mask,
200 );
201
202 if (
203 visual_type.red_mask,
204 visual_type.green_mask,
205 visual_type.blue_mask,
206 ) != (0xFF0000, 0xFF00, 0xFF)
207 {
208 continue;
209 }
210 let color_mask = visual_type.red_mask | visual_type.green_mask | visual_type.blue_mask;
211 let alpha_mask = color_mask as usize ^ ((1usize << depth_info.depth) - 1);
212
213 if alpha_mask == 0 {
214 if set.opaque.is_none() {
215 set.opaque = Some(visual);
216 }
217 } else {
218 if set.transparent.is_none() {
219 set.transparent = Some(visual);
220 }
221 }
222 }
223 }
224
225 set
226}
227
228struct RawWindow {
229 connection: *mut c_void,
230 screen_id: usize,
231 window_id: u32,
232 visual_id: u32,
233}
234
235// Safety: The raw pointers in RawWindow point to X11 connection
236// which is valid for the window's lifetime. These are used only for
237// passing to wgpu which needs Send+Sync for surface creation.
238unsafe impl Send for RawWindow {}
239unsafe impl Sync for RawWindow {}
240
241#[derive(Default)]
242pub struct Callbacks {
243 request_frame: Option<Box<dyn FnMut(RequestFrameOptions)>>,
244 input: Option<Box<dyn FnMut(PlatformInput) -> gpui::DispatchEventResult>>,
245 active_status_change: Option<Box<dyn FnMut(bool)>>,
246 hovered_status_change: Option<Box<dyn FnMut(bool)>>,
247 resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
248 moved: Option<Box<dyn FnMut()>>,
249 should_close: Option<Box<dyn FnMut() -> bool>>,
250 close: Option<Box<dyn FnOnce()>>,
251 appearance_changed: Option<Box<dyn FnMut()>>,
252}
253
254pub struct X11WindowState {
255 pub destroyed: bool,
256 parent: Option<X11WindowStatePtr>,
257 children: FxHashSet<xproto::Window>,
258 client: X11ClientStatePtr,
259 executor: ForegroundExecutor,
260 atoms: XcbAtoms,
261 x_root_window: xproto::Window,
262 x_screen_index: usize,
263 visual_id: u32,
264 pub(crate) counter_id: sync::Counter,
265 pub(crate) last_sync_counter: Option<sync::Int64>,
266 bounds: Bounds<Pixels>,
267 scale_factor: f32,
268 renderer: WgpuRenderer,
269 display: Rc<dyn PlatformDisplay>,
270 input_handler: Option<PlatformInputHandler>,
271 appearance: WindowAppearance,
272 background_appearance: WindowBackgroundAppearance,
273 maximized_vertical: bool,
274 maximized_horizontal: bool,
275 hidden: bool,
276 active: bool,
277 hovered: bool,
278 fullscreen: bool,
279 client_side_decorations_supported: bool,
280 decorations: WindowDecorations,
281 edge_constraints: Option<EdgeConstraints>,
282 pub handle: AnyWindowHandle,
283 last_insets: [u32; 4],
284}
285
286impl X11WindowState {
287 fn is_transparent(&self) -> bool {
288 self.background_appearance != WindowBackgroundAppearance::Opaque
289 }
290}
291
292#[derive(Clone)]
293pub(crate) struct X11WindowStatePtr {
294 pub state: Rc<RefCell<X11WindowState>>,
295 pub(crate) callbacks: Rc<RefCell<Callbacks>>,
296 xcb: Rc<XCBConnection>,
297 pub(crate) x_window: xproto::Window,
298}
299
300impl rwh::HasWindowHandle for RawWindow {
301 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
302 let Some(non_zero) = NonZeroU32::new(self.window_id) else {
303 log::error!("RawWindow.window_id zero when getting window handle.");
304 return Err(rwh::HandleError::Unavailable);
305 };
306 let mut handle = rwh::XcbWindowHandle::new(non_zero);
307 handle.visual_id = NonZeroU32::new(self.visual_id);
308 Ok(unsafe { rwh::WindowHandle::borrow_raw(handle.into()) })
309 }
310}
311impl rwh::HasDisplayHandle for RawWindow {
312 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
313 let Some(non_zero) = NonNull::new(self.connection) else {
314 log::error!("Null RawWindow.connection when getting display handle.");
315 return Err(rwh::HandleError::Unavailable);
316 };
317 let handle = rwh::XcbDisplayHandle::new(Some(non_zero), self.screen_id as i32);
318 Ok(unsafe { rwh::DisplayHandle::borrow_raw(handle.into()) })
319 }
320}
321
322impl rwh::HasWindowHandle for X11Window {
323 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
324 let Some(non_zero) = NonZeroU32::new(self.0.x_window) else {
325 return Err(rwh::HandleError::Unavailable);
326 };
327 let handle = rwh::XcbWindowHandle::new(non_zero);
328 Ok(unsafe { rwh::WindowHandle::borrow_raw(handle.into()) })
329 }
330}
331
332impl rwh::HasDisplayHandle for X11Window {
333 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
334 let connection =
335 as_raw_xcb_connection::AsRawXcbConnection::as_raw_xcb_connection(&*self.0.xcb)
336 as *mut _;
337 let Some(non_zero) = NonNull::new(connection) else {
338 return Err(rwh::HandleError::Unavailable);
339 };
340 let screen_id = {
341 let state = self.0.state.borrow();
342 u32::from(state.display.id()) as i32
343 };
344 let handle = rwh::XcbDisplayHandle::new(Some(non_zero), screen_id);
345 Ok(unsafe { rwh::DisplayHandle::borrow_raw(handle.into()) })
346 }
347}
348
349pub(crate) fn xcb_flush(xcb: &XCBConnection) {
350 xcb.flush()
351 .map_err(handle_connection_error)
352 .context("X11 flush failed")
353 .log_err();
354}
355
356pub(crate) fn check_reply<E, F, C>(
357 failure_context: F,
358 result: Result<VoidCookie<'_, C>, ConnectionError>,
359) -> anyhow::Result<()>
360where
361 E: Display + Send + Sync + 'static,
362 F: FnOnce() -> E,
363 C: RequestConnection,
364{
365 result
366 .map_err(handle_connection_error)
367 .and_then(|response| response.check().map_err(|reply_error| anyhow!(reply_error)))
368 .with_context(failure_context)
369}
370
371pub(crate) fn get_reply<E, F, C, O>(
372 failure_context: F,
373 result: Result<Cookie<'_, C, O>, ConnectionError>,
374) -> anyhow::Result<O>
375where
376 E: Display + Send + Sync + 'static,
377 F: FnOnce() -> E,
378 C: RequestConnection,
379 O: x11rb::x11_utils::TryParse,
380{
381 result
382 .map_err(handle_connection_error)
383 .and_then(|response| response.reply().map_err(|reply_error| anyhow!(reply_error)))
384 .with_context(failure_context)
385}
386
387/// Convert X11 connection errors to `anyhow::Error` and panic for unrecoverable errors.
388pub(crate) fn handle_connection_error(err: ConnectionError) -> anyhow::Error {
389 match err {
390 ConnectionError::UnknownError => anyhow!("X11 connection: Unknown error"),
391 ConnectionError::UnsupportedExtension => anyhow!("X11 connection: Unsupported extension"),
392 ConnectionError::MaximumRequestLengthExceeded => {
393 anyhow!("X11 connection: Maximum request length exceeded")
394 }
395 ConnectionError::FdPassingFailed => {
396 panic!("X11 connection: File descriptor passing failed")
397 }
398 ConnectionError::ParseError(parse_error) => {
399 anyhow!(parse_error).context("Parse error in X11 response")
400 }
401 ConnectionError::InsufficientMemory => panic!("X11 connection: Insufficient memory"),
402 ConnectionError::IoError(err) => anyhow!(err).context("X11 connection: IOError"),
403 _ => anyhow!(err),
404 }
405}
406
407impl X11WindowState {
408 pub fn new(
409 handle: AnyWindowHandle,
410 client: X11ClientStatePtr,
411 executor: ForegroundExecutor,
412 gpu_context: gpui_wgpu::GpuContext,
413 compositor_gpu: Option<CompositorGpuHint>,
414 params: WindowParams,
415 xcb: &Rc<XCBConnection>,
416 client_side_decorations_supported: bool,
417 x_main_screen_index: usize,
418 x_window: xproto::Window,
419 atoms: &XcbAtoms,
420 scale_factor: f32,
421 appearance: WindowAppearance,
422 parent_window: Option<X11WindowStatePtr>,
423 ) -> anyhow::Result<Self> {
424 let x_screen_index = params
425 .display_id
426 .map_or(x_main_screen_index, |did| u32::from(did) as usize);
427
428 let visual_set = find_visuals(xcb, x_screen_index);
429
430 let visual = match visual_set.transparent {
431 Some(visual) => visual,
432 None => {
433 log::warn!("Unable to find a transparent visual",);
434 visual_set.inherit
435 }
436 };
437 log::info!("Using {:?}", visual);
438
439 let colormap = if visual.colormap != 0 {
440 visual.colormap
441 } else {
442 let id = xcb.generate_id()?;
443 log::info!("Creating colormap {}", id);
444 check_reply(
445 || format!("X11 CreateColormap failed. id: {}", id),
446 xcb.create_colormap(xproto::ColormapAlloc::NONE, id, visual_set.root, visual.id),
447 )?;
448 id
449 };
450
451 let win_aux = xproto::CreateWindowAux::new()
452 // https://stackoverflow.com/questions/43218127/x11-xlib-xcb-creating-a-window-requires-border-pixel-if-specifying-colormap-wh
453 .border_pixel(visual_set.black_pixel)
454 .colormap(colormap)
455 .override_redirect((params.kind == WindowKind::PopUp) as u32)
456 .event_mask(
457 xproto::EventMask::EXPOSURE
458 | xproto::EventMask::STRUCTURE_NOTIFY
459 | xproto::EventMask::FOCUS_CHANGE
460 | xproto::EventMask::KEY_PRESS
461 | xproto::EventMask::KEY_RELEASE
462 | xproto::EventMask::PROPERTY_CHANGE
463 | xproto::EventMask::VISIBILITY_CHANGE,
464 );
465
466 let mut bounds = params.bounds.to_device_pixels(scale_factor);
467 if bounds.size.width.0 == 0 || bounds.size.height.0 == 0 {
468 log::warn!(
469 "Window bounds contain a zero value. height={}, width={}. Falling back to defaults.",
470 bounds.size.height.0,
471 bounds.size.width.0
472 );
473 bounds.size.width = 800.into();
474 bounds.size.height = 600.into();
475 }
476
477 check_reply(
478 || {
479 format!(
480 "X11 CreateWindow failed. depth: {}, x_window: {}, visual_set.root: {}, bounds.origin.x.0: {}, bounds.origin.y.0: {}, bounds.size.width.0: {}, bounds.size.height.0: {}",
481 visual.depth,
482 x_window,
483 visual_set.root,
484 bounds.origin.x.0 + 2,
485 bounds.origin.y.0,
486 bounds.size.width.0,
487 bounds.size.height.0
488 )
489 },
490 xcb.create_window(
491 visual.depth,
492 x_window,
493 visual_set.root,
494 (bounds.origin.x.0 + 2) as i16,
495 bounds.origin.y.0 as i16,
496 bounds.size.width.0 as u16,
497 bounds.size.height.0 as u16,
498 0,
499 xproto::WindowClass::INPUT_OUTPUT,
500 visual.id,
501 &win_aux,
502 ),
503 )?;
504
505 // Collect errors during setup, so that window can be destroyed on failure.
506 let setup_result = maybe!({
507 let pid = std::process::id();
508 check_reply(
509 || "X11 ChangeProperty for _NET_WM_PID failed.",
510 xcb.change_property32(
511 xproto::PropMode::REPLACE,
512 x_window,
513 atoms._NET_WM_PID,
514 xproto::AtomEnum::CARDINAL,
515 &[pid],
516 ),
517 )?;
518
519 let reply = get_reply(|| "X11 GetGeometry failed.", xcb.get_geometry(x_window))?;
520 if reply.x == 0 && reply.y == 0 {
521 bounds.origin.x.0 += 2;
522 // Work around a bug where our rendered content appears
523 // outside the window bounds when opened at the default position
524 // (14px, 49px on X + Gnome + Ubuntu 22).
525 let x = bounds.origin.x.0;
526 let y = bounds.origin.y.0;
527 check_reply(
528 || format!("X11 ConfigureWindow failed. x: {}, y: {}", x, y),
529 xcb.configure_window(x_window, &xproto::ConfigureWindowAux::new().x(x).y(y)),
530 )?;
531 }
532 if let Some(titlebar) = params.titlebar
533 && let Some(title) = titlebar.title
534 {
535 check_reply(
536 || "X11 ChangeProperty8 on window title failed.",
537 xcb.change_property8(
538 xproto::PropMode::REPLACE,
539 x_window,
540 xproto::AtomEnum::WM_NAME,
541 xproto::AtomEnum::STRING,
542 title.as_bytes(),
543 ),
544 )?;
545 }
546
547 if params.kind == WindowKind::PopUp {
548 check_reply(
549 || "X11 ChangeProperty32 setting window type for pop-up failed.",
550 xcb.change_property32(
551 xproto::PropMode::REPLACE,
552 x_window,
553 atoms._NET_WM_WINDOW_TYPE,
554 xproto::AtomEnum::ATOM,
555 &[atoms._NET_WM_WINDOW_TYPE_NOTIFICATION],
556 ),
557 )?;
558 }
559
560 if params.kind == WindowKind::Floating || params.kind == WindowKind::Dialog {
561 if let Some(parent_window) = parent_window.as_ref().map(|w| w.x_window) {
562 // WM_TRANSIENT_FOR hint indicating the main application window. For floating windows, we set
563 // a parent window (WM_TRANSIENT_FOR) such that the window manager knows where to
564 // place the floating window in relation to the main window.
565 // https://specifications.freedesktop.org/wm-spec/1.4/ar01s05.html
566 check_reply(
567 || "X11 ChangeProperty32 setting WM_TRANSIENT_FOR for floating window failed.",
568 xcb.change_property32(
569 xproto::PropMode::REPLACE,
570 x_window,
571 atoms.WM_TRANSIENT_FOR,
572 xproto::AtomEnum::WINDOW,
573 &[parent_window],
574 ),
575 )?;
576 }
577 }
578
579 let parent = if params.kind == WindowKind::Dialog
580 && let Some(parent) = parent_window
581 {
582 parent.add_child(x_window);
583
584 Some(parent)
585 } else {
586 None
587 };
588
589 if params.kind == WindowKind::Dialog {
590 // _NET_WM_WINDOW_TYPE_DIALOG indicates that this is a dialog (floating) window
591 // https://specifications.freedesktop.org/wm-spec/1.4/ar01s05.html
592 check_reply(
593 || "X11 ChangeProperty32 setting window type for dialog window failed.",
594 xcb.change_property32(
595 xproto::PropMode::REPLACE,
596 x_window,
597 atoms._NET_WM_WINDOW_TYPE,
598 xproto::AtomEnum::ATOM,
599 &[atoms._NET_WM_WINDOW_TYPE_DIALOG],
600 ),
601 )?;
602
603 // We set the modal state for dialog windows, so that the window manager
604 // can handle it appropriately (e.g., prevent interaction with the parent window
605 // while the dialog is open).
606 check_reply(
607 || "X11 ChangeProperty32 setting modal state for dialog window failed.",
608 xcb.change_property32(
609 xproto::PropMode::REPLACE,
610 x_window,
611 atoms._NET_WM_STATE,
612 xproto::AtomEnum::ATOM,
613 &[atoms._NET_WM_STATE_MODAL],
614 ),
615 )?;
616 }
617
618 check_reply(
619 || "X11 ChangeProperty32 setting protocols failed.",
620 xcb.change_property32(
621 xproto::PropMode::REPLACE,
622 x_window,
623 atoms.WM_PROTOCOLS,
624 xproto::AtomEnum::ATOM,
625 &[atoms.WM_DELETE_WINDOW, atoms._NET_WM_SYNC_REQUEST],
626 ),
627 )?;
628
629 get_reply(
630 || "X11 sync protocol initialize failed.",
631 sync::initialize(xcb, 3, 1),
632 )?;
633 let sync_request_counter = xcb.generate_id()?;
634 check_reply(
635 || "X11 sync CreateCounter failed.",
636 sync::create_counter(xcb, sync_request_counter, sync::Int64 { lo: 0, hi: 0 }),
637 )?;
638
639 check_reply(
640 || "X11 ChangeProperty32 setting sync request counter failed.",
641 xcb.change_property32(
642 xproto::PropMode::REPLACE,
643 x_window,
644 atoms._NET_WM_SYNC_REQUEST_COUNTER,
645 xproto::AtomEnum::CARDINAL,
646 &[sync_request_counter],
647 ),
648 )?;
649
650 check_reply(
651 || "X11 XiSelectEvents failed.",
652 xcb.xinput_xi_select_events(
653 x_window,
654 &[xinput::EventMask {
655 deviceid: XINPUT_ALL_DEVICE_GROUPS,
656 mask: vec![
657 xinput::XIEventMask::MOTION
658 | xinput::XIEventMask::BUTTON_PRESS
659 | xinput::XIEventMask::BUTTON_RELEASE
660 | xinput::XIEventMask::ENTER
661 | xinput::XIEventMask::LEAVE,
662 ],
663 }],
664 ),
665 )?;
666
667 check_reply(
668 || "X11 XiSelectEvents for device changes failed.",
669 xcb.xinput_xi_select_events(
670 x_window,
671 &[xinput::EventMask {
672 deviceid: XINPUT_ALL_DEVICES,
673 mask: vec![
674 xinput::XIEventMask::HIERARCHY | xinput::XIEventMask::DEVICE_CHANGED,
675 ],
676 }],
677 ),
678 )?;
679
680 xcb_flush(xcb);
681
682 let renderer = {
683 let raw_window = RawWindow {
684 connection: as_raw_xcb_connection::AsRawXcbConnection::as_raw_xcb_connection(
685 xcb,
686 ) as *mut _,
687 screen_id: x_screen_index,
688 window_id: x_window,
689 visual_id: visual.id,
690 };
691 let config = WgpuSurfaceConfig {
692 // Note: this has to be done after the GPU init, or otherwise
693 // the sizes are immediately invalidated.
694 size: query_render_extent(xcb, x_window)?,
695 // We set it to transparent by default, even if we have client-side
696 // decorations, since those seem to work on X11 even without `true` here.
697 // If the window appearance changes, then the renderer will get updated
698 // too
699 transparent: false,
700 };
701 WgpuRenderer::new(gpu_context, &raw_window, config, compositor_gpu)?
702 };
703
704 // Set max window size hints based on the GPU's maximum texture dimension.
705 // This prevents the window from being resized larger than what the GPU can render.
706 let max_texture_size = renderer.max_texture_size();
707 let mut size_hints = WmSizeHints::new();
708 if let Some(size) = params.window_min_size {
709 size_hints.min_size =
710 Some((f32::from(size.width) as i32, f32::from(size.height) as i32));
711 }
712 size_hints.max_size = Some((max_texture_size as i32, max_texture_size as i32));
713 check_reply(
714 || {
715 format!(
716 "X11 change of WM_SIZE_HINTS failed. max_size: {:?}",
717 max_texture_size
718 )
719 },
720 size_hints.set_normal_hints(xcb, x_window),
721 )?;
722
723 let display = Rc::new(X11Display::new(xcb, scale_factor, x_screen_index)?);
724
725 Ok(Self {
726 parent,
727 children: FxHashSet::default(),
728 client,
729 executor,
730 display,
731 x_root_window: visual_set.root,
732 x_screen_index,
733 visual_id: visual.id,
734 bounds: bounds.to_pixels(scale_factor),
735 scale_factor,
736 renderer,
737 atoms: *atoms,
738 input_handler: None,
739 active: false,
740 hovered: false,
741 fullscreen: false,
742 maximized_vertical: false,
743 maximized_horizontal: false,
744 hidden: false,
745 appearance,
746 handle,
747 background_appearance: WindowBackgroundAppearance::Opaque,
748 destroyed: false,
749 client_side_decorations_supported,
750 decorations: WindowDecorations::Server,
751 last_insets: [0, 0, 0, 0],
752 edge_constraints: None,
753 counter_id: sync_request_counter,
754 last_sync_counter: None,
755 })
756 });
757
758 if setup_result.is_err() {
759 check_reply(
760 || "X11 DestroyWindow failed while cleaning it up after setup failure.",
761 xcb.destroy_window(x_window),
762 )?;
763 xcb_flush(xcb);
764 }
765
766 setup_result
767 }
768
769 fn content_size(&self) -> Size<Pixels> {
770 self.bounds.size
771 }
772}
773
774pub(crate) struct X11Window(pub X11WindowStatePtr);
775
776impl Drop for X11Window {
777 fn drop(&mut self) {
778 let mut state = self.0.state.borrow_mut();
779
780 if let Some(parent) = state.parent.as_ref() {
781 parent.state.borrow_mut().children.remove(&self.0.x_window);
782 }
783
784 state.renderer.destroy();
785
786 let destroy_x_window = maybe!({
787 check_reply(
788 || "X11 DestroyWindow failure.",
789 self.0.xcb.destroy_window(self.0.x_window),
790 )?;
791 xcb_flush(&self.0.xcb);
792
793 anyhow::Ok(())
794 })
795 .log_err();
796
797 if destroy_x_window.is_some() {
798 state.destroyed = true;
799
800 let this_ptr = self.0.clone();
801 let client_ptr = state.client.clone();
802 state
803 .executor
804 .spawn(async move {
805 this_ptr.close();
806 client_ptr.drop_window(this_ptr.x_window);
807 })
808 .detach();
809 }
810
811 drop(state);
812 }
813}
814
815enum WmHintPropertyState {
816 // Remove = 0,
817 // Add = 1,
818 Toggle = 2,
819}
820
821impl X11Window {
822 pub fn new(
823 handle: AnyWindowHandle,
824 client: X11ClientStatePtr,
825 executor: ForegroundExecutor,
826 gpu_context: gpui_wgpu::GpuContext,
827 compositor_gpu: Option<CompositorGpuHint>,
828 params: WindowParams,
829 xcb: &Rc<XCBConnection>,
830 client_side_decorations_supported: bool,
831 x_main_screen_index: usize,
832 x_window: xproto::Window,
833 atoms: &XcbAtoms,
834 scale_factor: f32,
835 appearance: WindowAppearance,
836 parent_window: Option<X11WindowStatePtr>,
837 ) -> anyhow::Result<Self> {
838 let ptr = X11WindowStatePtr {
839 state: Rc::new(RefCell::new(X11WindowState::new(
840 handle,
841 client,
842 executor,
843 gpu_context,
844 compositor_gpu,
845 params,
846 xcb,
847 client_side_decorations_supported,
848 x_main_screen_index,
849 x_window,
850 atoms,
851 scale_factor,
852 appearance,
853 parent_window,
854 )?)),
855 callbacks: Rc::new(RefCell::new(Callbacks::default())),
856 xcb: xcb.clone(),
857 x_window,
858 };
859
860 let state = ptr.state.borrow_mut();
861 ptr.set_wm_properties(state)?;
862
863 Ok(Self(ptr))
864 }
865
866 fn set_wm_hints<C: Display + Send + Sync + 'static, F: FnOnce() -> C>(
867 &self,
868 failure_context: F,
869 wm_hint_property_state: WmHintPropertyState,
870 prop1: u32,
871 prop2: u32,
872 ) -> anyhow::Result<()> {
873 let state = self.0.state.borrow();
874 let message = ClientMessageEvent::new(
875 32,
876 self.0.x_window,
877 state.atoms._NET_WM_STATE,
878 [wm_hint_property_state as u32, prop1, prop2, 1, 0],
879 );
880 check_reply(
881 failure_context,
882 self.0.xcb.send_event(
883 false,
884 state.x_root_window,
885 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
886 message,
887 ),
888 )?;
889 xcb_flush(&self.0.xcb);
890 Ok(())
891 }
892
893 fn get_root_position(
894 &self,
895 position: Point<Pixels>,
896 ) -> anyhow::Result<TranslateCoordinatesReply> {
897 let state = self.0.state.borrow();
898 get_reply(
899 || "X11 TranslateCoordinates failed.",
900 self.0.xcb.translate_coordinates(
901 self.0.x_window,
902 state.x_root_window,
903 (f32::from(position.x) * state.scale_factor) as i16,
904 (f32::from(position.y) * state.scale_factor) as i16,
905 ),
906 )
907 }
908
909 fn send_moveresize(&self, flag: u32) -> anyhow::Result<()> {
910 let state = self.0.state.borrow();
911
912 check_reply(
913 || "X11 UngrabPointer before move/resize of window failed.",
914 self.0.xcb.ungrab_pointer(x11rb::CURRENT_TIME),
915 )?;
916
917 let pointer = get_reply(
918 || "X11 QueryPointer before move/resize of window failed.",
919 self.0.xcb.query_pointer(self.0.x_window),
920 )?;
921 let message = ClientMessageEvent::new(
922 32,
923 self.0.x_window,
924 state.atoms._NET_WM_MOVERESIZE,
925 [
926 pointer.root_x as u32,
927 pointer.root_y as u32,
928 flag,
929 0, // Left mouse button
930 0,
931 ],
932 );
933 check_reply(
934 || "X11 SendEvent to move/resize window failed.",
935 self.0.xcb.send_event(
936 false,
937 state.x_root_window,
938 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
939 message,
940 ),
941 )?;
942
943 xcb_flush(&self.0.xcb);
944 Ok(())
945 }
946}
947
948impl X11WindowStatePtr {
949 pub fn should_close(&self) -> bool {
950 let mut cb = self.callbacks.borrow_mut();
951 if let Some(mut should_close) = cb.should_close.take() {
952 let result = (should_close)();
953 cb.should_close = Some(should_close);
954 result
955 } else {
956 true
957 }
958 }
959
960 pub fn property_notify(&self, event: xproto::PropertyNotifyEvent) -> anyhow::Result<()> {
961 let state = self.state.borrow_mut();
962 if event.atom == state.atoms._NET_WM_STATE {
963 self.set_wm_properties(state)?;
964 } else if event.atom == state.atoms._GTK_EDGE_CONSTRAINTS {
965 self.set_edge_constraints(state)?;
966 }
967 Ok(())
968 }
969
970 fn set_edge_constraints(
971 &self,
972 mut state: std::cell::RefMut<X11WindowState>,
973 ) -> anyhow::Result<()> {
974 let reply = get_reply(
975 || "X11 GetProperty for _GTK_EDGE_CONSTRAINTS failed.",
976 self.xcb.get_property(
977 false,
978 self.x_window,
979 state.atoms._GTK_EDGE_CONSTRAINTS,
980 xproto::AtomEnum::CARDINAL,
981 0,
982 4,
983 ),
984 )?;
985
986 if reply.value_len != 0 {
987 if let Ok(bytes) = reply.value[0..4].try_into() {
988 let atom = u32::from_ne_bytes(bytes);
989 let edge_constraints = EdgeConstraints::from_atom(atom);
990 state.edge_constraints.replace(edge_constraints);
991 } else {
992 log::error!("Failed to parse GTK_EDGE_CONSTRAINTS");
993 }
994 }
995
996 Ok(())
997 }
998
999 fn set_wm_properties(
1000 &self,
1001 mut state: std::cell::RefMut<X11WindowState>,
1002 ) -> anyhow::Result<()> {
1003 let reply = get_reply(
1004 || "X11 GetProperty for _NET_WM_STATE failed.",
1005 self.xcb.get_property(
1006 false,
1007 self.x_window,
1008 state.atoms._NET_WM_STATE,
1009 xproto::AtomEnum::ATOM,
1010 0,
1011 u32::MAX,
1012 ),
1013 )?;
1014
1015 let atoms = reply
1016 .value
1017 .chunks_exact(4)
1018 .map(|chunk| u32::from_ne_bytes([chunk[0], chunk[1], chunk[2], chunk[3]]));
1019
1020 state.active = false;
1021 state.fullscreen = false;
1022 state.maximized_vertical = false;
1023 state.maximized_horizontal = false;
1024 state.hidden = false;
1025
1026 for atom in atoms {
1027 if atom == state.atoms._NET_WM_STATE_FOCUSED {
1028 state.active = true;
1029 } else if atom == state.atoms._NET_WM_STATE_FULLSCREEN {
1030 state.fullscreen = true;
1031 } else if atom == state.atoms._NET_WM_STATE_MAXIMIZED_VERT {
1032 state.maximized_vertical = true;
1033 } else if atom == state.atoms._NET_WM_STATE_MAXIMIZED_HORZ {
1034 state.maximized_horizontal = true;
1035 } else if atom == state.atoms._NET_WM_STATE_HIDDEN {
1036 state.hidden = true;
1037 }
1038 }
1039
1040 Ok(())
1041 }
1042
1043 pub fn add_child(&self, child: xproto::Window) {
1044 let mut state = self.state.borrow_mut();
1045 state.children.insert(child);
1046 }
1047
1048 pub fn is_blocked(&self) -> bool {
1049 let state = self.state.borrow();
1050 !state.children.is_empty()
1051 }
1052
1053 pub fn close(&self) {
1054 let state = self.state.borrow();
1055 let client = state.client.clone();
1056 #[allow(clippy::mutable_key_type)]
1057 let children = state.children.clone();
1058 drop(state);
1059
1060 if let Some(client) = client.get_client() {
1061 for child in children {
1062 if let Some(child_window) = client.get_window(child) {
1063 child_window.close();
1064 }
1065 }
1066 }
1067
1068 let mut callbacks = self.callbacks.borrow_mut();
1069 if let Some(fun) = callbacks.close.take() {
1070 fun()
1071 }
1072 }
1073
1074 pub fn refresh(&self, request_frame_options: RequestFrameOptions) {
1075 let callback = self.callbacks.borrow_mut().request_frame.take();
1076 if let Some(mut fun) = callback {
1077 fun(request_frame_options);
1078 self.callbacks.borrow_mut().request_frame = Some(fun);
1079 }
1080 }
1081
1082 pub fn handle_input(&self, input: PlatformInput) {
1083 if self.is_blocked() {
1084 return;
1085 }
1086 let callback = self.callbacks.borrow_mut().input.take();
1087 if let Some(mut fun) = callback {
1088 let result = fun(input.clone());
1089 self.callbacks.borrow_mut().input = Some(fun);
1090 if !result.propagate {
1091 return;
1092 }
1093 }
1094 if let PlatformInput::KeyDown(event) = input {
1095 // only allow shift modifier when inserting text
1096 if event.keystroke.modifiers.is_subset_of(&Modifiers::shift()) {
1097 let mut state = self.state.borrow_mut();
1098 if let Some(mut input_handler) = state.input_handler.take() {
1099 if let Some(key_char) = &event.keystroke.key_char {
1100 drop(state);
1101 input_handler.replace_text_in_range(None, key_char);
1102 state = self.state.borrow_mut();
1103 }
1104 state.input_handler = Some(input_handler);
1105 }
1106 }
1107 }
1108 }
1109
1110 pub fn handle_ime_commit(&self, text: String) {
1111 if self.is_blocked() {
1112 return;
1113 }
1114 let mut state = self.state.borrow_mut();
1115 if let Some(mut input_handler) = state.input_handler.take() {
1116 drop(state);
1117 input_handler.replace_text_in_range(None, &text);
1118 let mut state = self.state.borrow_mut();
1119 state.input_handler = Some(input_handler);
1120 }
1121 }
1122
1123 pub fn handle_ime_preedit(&self, text: String) {
1124 if self.is_blocked() {
1125 return;
1126 }
1127 let mut state = self.state.borrow_mut();
1128 if let Some(mut input_handler) = state.input_handler.take() {
1129 drop(state);
1130 input_handler.replace_and_mark_text_in_range(None, &text, None);
1131 let mut state = self.state.borrow_mut();
1132 state.input_handler = Some(input_handler);
1133 }
1134 }
1135
1136 pub fn handle_ime_unmark(&self) {
1137 if self.is_blocked() {
1138 return;
1139 }
1140 let mut state = self.state.borrow_mut();
1141 if let Some(mut input_handler) = state.input_handler.take() {
1142 drop(state);
1143 input_handler.unmark_text();
1144 let mut state = self.state.borrow_mut();
1145 state.input_handler = Some(input_handler);
1146 }
1147 }
1148
1149 pub fn handle_ime_delete(&self) {
1150 if self.is_blocked() {
1151 return;
1152 }
1153 let mut state = self.state.borrow_mut();
1154 if let Some(mut input_handler) = state.input_handler.take() {
1155 drop(state);
1156 if let Some(marked) = input_handler.marked_text_range() {
1157 input_handler.replace_text_in_range(Some(marked), "");
1158 }
1159 let mut state = self.state.borrow_mut();
1160 state.input_handler = Some(input_handler);
1161 }
1162 }
1163
1164 pub fn get_ime_area(&self) -> Option<Bounds<ScaledPixels>> {
1165 let mut state = self.state.borrow_mut();
1166 let scale_factor = state.scale_factor;
1167 let mut bounds: Option<Bounds<Pixels>> = None;
1168 if let Some(mut input_handler) = state.input_handler.take() {
1169 drop(state);
1170 if let Some(selection) = input_handler.selected_text_range(true) {
1171 bounds = input_handler.bounds_for_range(selection.range);
1172 }
1173 let mut state = self.state.borrow_mut();
1174 state.input_handler = Some(input_handler);
1175 };
1176 bounds.map(|b| b.scale(scale_factor))
1177 }
1178
1179 pub fn set_bounds(&self, bounds: Bounds<i32>) -> anyhow::Result<()> {
1180 let (is_resize, content_size, scale_factor) = {
1181 let mut state = self.state.borrow_mut();
1182 let bounds = bounds.map(|f| px(f as f32 / state.scale_factor));
1183
1184 let is_resize = bounds.size.width != state.bounds.size.width
1185 || bounds.size.height != state.bounds.size.height;
1186
1187 // If it's a resize event (only width/height changed), we ignore `bounds.origin`
1188 // because it contains wrong values.
1189 if is_resize {
1190 state.bounds.size = bounds.size;
1191 } else {
1192 state.bounds = bounds;
1193 }
1194
1195 let gpu_size = query_render_extent(&self.xcb, self.x_window)?;
1196 state.renderer.update_drawable_size(gpu_size);
1197 let result = (is_resize, state.content_size(), state.scale_factor);
1198 if let Some(value) = state.last_sync_counter.take() {
1199 check_reply(
1200 || "X11 sync SetCounter failed.",
1201 sync::set_counter(&self.xcb, state.counter_id, value),
1202 )?;
1203 }
1204 result
1205 };
1206
1207 let mut callbacks = self.callbacks.borrow_mut();
1208 if let Some(ref mut fun) = callbacks.resize {
1209 fun(content_size, scale_factor)
1210 }
1211
1212 if !is_resize && let Some(ref mut fun) = callbacks.moved {
1213 fun();
1214 }
1215
1216 Ok(())
1217 }
1218
1219 pub fn set_active(&self, focus: bool) {
1220 let callback = self.callbacks.borrow_mut().active_status_change.take();
1221 if let Some(mut fun) = callback {
1222 fun(focus);
1223 self.callbacks.borrow_mut().active_status_change = Some(fun);
1224 }
1225 }
1226
1227 pub fn set_hovered(&self, focus: bool) {
1228 let callback = self.callbacks.borrow_mut().hovered_status_change.take();
1229 if let Some(mut fun) = callback {
1230 fun(focus);
1231 self.callbacks.borrow_mut().hovered_status_change = Some(fun);
1232 }
1233 }
1234
1235 pub fn set_appearance(&mut self, appearance: WindowAppearance) {
1236 let mut state = self.state.borrow_mut();
1237 state.appearance = appearance;
1238 let is_transparent = state.is_transparent();
1239 state.renderer.update_transparency(is_transparent);
1240 state.appearance = appearance;
1241 drop(state);
1242 let callback = self.callbacks.borrow_mut().appearance_changed.take();
1243 if let Some(mut fun) = callback {
1244 fun();
1245 self.callbacks.borrow_mut().appearance_changed = Some(fun);
1246 }
1247 }
1248}
1249
1250impl PlatformWindow for X11Window {
1251 fn bounds(&self) -> Bounds<Pixels> {
1252 self.0.state.borrow().bounds
1253 }
1254
1255 fn is_maximized(&self) -> bool {
1256 let state = self.0.state.borrow();
1257
1258 // A maximized window that gets minimized will still retain its maximized state.
1259 !state.hidden && state.maximized_vertical && state.maximized_horizontal
1260 }
1261
1262 fn window_bounds(&self) -> WindowBounds {
1263 let state = self.0.state.borrow();
1264 if self.is_maximized() {
1265 WindowBounds::Maximized(state.bounds)
1266 } else {
1267 WindowBounds::Windowed(state.bounds)
1268 }
1269 }
1270
1271 fn inner_window_bounds(&self) -> WindowBounds {
1272 let state = self.0.state.borrow();
1273 if self.is_maximized() {
1274 WindowBounds::Maximized(state.bounds)
1275 } else {
1276 let mut bounds = state.bounds;
1277 let [left, right, top, bottom] = state.last_insets;
1278
1279 let [left, right, top, bottom] = [
1280 px((left as f32) / state.scale_factor),
1281 px((right as f32) / state.scale_factor),
1282 px((top as f32) / state.scale_factor),
1283 px((bottom as f32) / state.scale_factor),
1284 ];
1285
1286 bounds.origin.x += left;
1287 bounds.origin.y += top;
1288 bounds.size.width -= left + right;
1289 bounds.size.height -= top + bottom;
1290
1291 WindowBounds::Windowed(bounds)
1292 }
1293 }
1294
1295 fn content_size(&self) -> Size<Pixels> {
1296 // After the wgpu migration, X11WindowState::content_size() returns logical pixels
1297 // (bounds.size is already divided by scale_factor in set_bounds), so no further
1298 // division is needed here. This matches the Wayland implementation.
1299 self.0.state.borrow().content_size()
1300 }
1301
1302 fn resize(&mut self, size: Size<Pixels>) {
1303 let state = self.0.state.borrow();
1304 let size = size.to_device_pixels(state.scale_factor);
1305 let width = size.width.0 as u32;
1306 let height = size.height.0 as u32;
1307
1308 check_reply(
1309 || {
1310 format!(
1311 "X11 ConfigureWindow failed. width: {}, height: {}",
1312 width, height
1313 )
1314 },
1315 self.0.xcb.configure_window(
1316 self.0.x_window,
1317 &xproto::ConfigureWindowAux::new()
1318 .width(width)
1319 .height(height),
1320 ),
1321 )
1322 .log_err();
1323 xcb_flush(&self.0.xcb);
1324 }
1325
1326 fn scale_factor(&self) -> f32 {
1327 self.0.state.borrow().scale_factor
1328 }
1329
1330 fn appearance(&self) -> WindowAppearance {
1331 self.0.state.borrow().appearance
1332 }
1333
1334 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
1335 Some(self.0.state.borrow().display.clone())
1336 }
1337
1338 fn mouse_position(&self) -> Point<Pixels> {
1339 get_reply(
1340 || "X11 QueryPointer failed.",
1341 self.0.xcb.query_pointer(self.0.x_window),
1342 )
1343 .log_err()
1344 .map_or(Point::new(Pixels::ZERO, Pixels::ZERO), |reply| {
1345 Point::new((reply.root_x as u32).into(), (reply.root_y as u32).into())
1346 })
1347 }
1348
1349 fn modifiers(&self) -> Modifiers {
1350 self.0
1351 .state
1352 .borrow()
1353 .client
1354 .0
1355 .upgrade()
1356 .map(|ref_cell| ref_cell.borrow().modifiers)
1357 .unwrap_or_default()
1358 }
1359
1360 fn capslock(&self) -> gpui::Capslock {
1361 self.0
1362 .state
1363 .borrow()
1364 .client
1365 .0
1366 .upgrade()
1367 .map(|ref_cell| ref_cell.borrow().capslock)
1368 .unwrap_or_default()
1369 }
1370
1371 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
1372 self.0.state.borrow_mut().input_handler = Some(input_handler);
1373 }
1374
1375 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
1376 self.0.state.borrow_mut().input_handler.take()
1377 }
1378
1379 fn prompt(
1380 &self,
1381 _level: PromptLevel,
1382 _msg: &str,
1383 _detail: Option<&str>,
1384 _answers: &[PromptButton],
1385 ) -> Option<futures::channel::oneshot::Receiver<usize>> {
1386 None
1387 }
1388
1389 fn activate(&self) {
1390 let data = [1, xproto::Time::CURRENT_TIME.into(), 0, 0, 0];
1391 let message = xproto::ClientMessageEvent::new(
1392 32,
1393 self.0.x_window,
1394 self.0.state.borrow().atoms._NET_ACTIVE_WINDOW,
1395 data,
1396 );
1397 self.0
1398 .xcb
1399 .send_event(
1400 false,
1401 self.0.state.borrow().x_root_window,
1402 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
1403 message,
1404 )
1405 .log_err();
1406 self.0
1407 .xcb
1408 .set_input_focus(
1409 xproto::InputFocus::POINTER_ROOT,
1410 self.0.x_window,
1411 xproto::Time::CURRENT_TIME,
1412 )
1413 .log_err();
1414 xcb_flush(&self.0.xcb);
1415 }
1416
1417 fn is_active(&self) -> bool {
1418 self.0.state.borrow().active
1419 }
1420
1421 fn is_hovered(&self) -> bool {
1422 self.0.state.borrow().hovered
1423 }
1424
1425 fn set_title(&mut self, title: &str) {
1426 check_reply(
1427 || "X11 ChangeProperty8 on WM_NAME failed.",
1428 self.0.xcb.change_property8(
1429 xproto::PropMode::REPLACE,
1430 self.0.x_window,
1431 xproto::AtomEnum::WM_NAME,
1432 xproto::AtomEnum::STRING,
1433 title.as_bytes(),
1434 ),
1435 )
1436 .log_err();
1437
1438 check_reply(
1439 || "X11 ChangeProperty8 on _NET_WM_NAME failed.",
1440 self.0.xcb.change_property8(
1441 xproto::PropMode::REPLACE,
1442 self.0.x_window,
1443 self.0.state.borrow().atoms._NET_WM_NAME,
1444 self.0.state.borrow().atoms.UTF8_STRING,
1445 title.as_bytes(),
1446 ),
1447 )
1448 .log_err();
1449 xcb_flush(&self.0.xcb);
1450 }
1451
1452 fn set_app_id(&mut self, app_id: &str) {
1453 let mut data = Vec::with_capacity(app_id.len() * 2 + 1);
1454 data.extend(app_id.bytes()); // instance https://unix.stackexchange.com/a/494170
1455 data.push(b'\0');
1456 data.extend(app_id.bytes()); // class
1457
1458 check_reply(
1459 || "X11 ChangeProperty8 for WM_CLASS failed.",
1460 self.0.xcb.change_property8(
1461 xproto::PropMode::REPLACE,
1462 self.0.x_window,
1463 xproto::AtomEnum::WM_CLASS,
1464 xproto::AtomEnum::STRING,
1465 &data,
1466 ),
1467 )
1468 .log_err();
1469 }
1470
1471 fn map_window(&mut self) -> anyhow::Result<()> {
1472 check_reply(
1473 || "X11 MapWindow failed.",
1474 self.0.xcb.map_window(self.0.x_window),
1475 )?;
1476 Ok(())
1477 }
1478
1479 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
1480 let mut state = self.0.state.borrow_mut();
1481 state.background_appearance = background_appearance;
1482 let transparent = state.is_transparent();
1483 state.renderer.update_transparency(transparent);
1484 }
1485
1486 fn background_appearance(&self) -> WindowBackgroundAppearance {
1487 self.0.state.borrow().background_appearance
1488 }
1489
1490 fn is_subpixel_rendering_supported(&self) -> bool {
1491 self.0
1492 .state
1493 .borrow()
1494 .client
1495 .0
1496 .upgrade()
1497 .map(|ref_cell| {
1498 let state = ref_cell.borrow();
1499 state
1500 .gpu_context
1501 .borrow()
1502 .as_ref()
1503 .is_some_and(|ctx| ctx.supports_dual_source_blending())
1504 })
1505 .unwrap_or_default()
1506 }
1507
1508 fn minimize(&self) {
1509 let state = self.0.state.borrow();
1510 const WINDOW_ICONIC_STATE: u32 = 3;
1511 let message = ClientMessageEvent::new(
1512 32,
1513 self.0.x_window,
1514 state.atoms.WM_CHANGE_STATE,
1515 [WINDOW_ICONIC_STATE, 0, 0, 0, 0],
1516 );
1517 check_reply(
1518 || "X11 SendEvent to minimize window failed.",
1519 self.0.xcb.send_event(
1520 false,
1521 state.x_root_window,
1522 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
1523 message,
1524 ),
1525 )
1526 .log_err();
1527 }
1528
1529 fn zoom(&self) {
1530 let state = self.0.state.borrow();
1531 self.set_wm_hints(
1532 || "X11 SendEvent to maximize a window failed.",
1533 WmHintPropertyState::Toggle,
1534 state.atoms._NET_WM_STATE_MAXIMIZED_VERT,
1535 state.atoms._NET_WM_STATE_MAXIMIZED_HORZ,
1536 )
1537 .log_err();
1538 }
1539
1540 fn toggle_fullscreen(&self) {
1541 let state = self.0.state.borrow();
1542 self.set_wm_hints(
1543 || "X11 SendEvent to fullscreen a window failed.",
1544 WmHintPropertyState::Toggle,
1545 state.atoms._NET_WM_STATE_FULLSCREEN,
1546 xproto::AtomEnum::NONE.into(),
1547 )
1548 .log_err();
1549 }
1550
1551 fn is_fullscreen(&self) -> bool {
1552 self.0.state.borrow().fullscreen
1553 }
1554
1555 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
1556 self.0.callbacks.borrow_mut().request_frame = Some(callback);
1557 }
1558
1559 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> gpui::DispatchEventResult>) {
1560 self.0.callbacks.borrow_mut().input = Some(callback);
1561 }
1562
1563 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1564 self.0.callbacks.borrow_mut().active_status_change = Some(callback);
1565 }
1566
1567 fn on_hover_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1568 self.0.callbacks.borrow_mut().hovered_status_change = Some(callback);
1569 }
1570
1571 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
1572 self.0.callbacks.borrow_mut().resize = Some(callback);
1573 }
1574
1575 fn on_moved(&self, callback: Box<dyn FnMut()>) {
1576 self.0.callbacks.borrow_mut().moved = Some(callback);
1577 }
1578
1579 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
1580 self.0.callbacks.borrow_mut().should_close = Some(callback);
1581 }
1582
1583 fn on_close(&self, callback: Box<dyn FnOnce()>) {
1584 self.0.callbacks.borrow_mut().close = Some(callback);
1585 }
1586
1587 fn on_hit_test_window_control(&self, _callback: Box<dyn FnMut() -> Option<WindowControlArea>>) {
1588 }
1589
1590 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
1591 self.0.callbacks.borrow_mut().appearance_changed = Some(callback);
1592 }
1593
1594 fn draw(&self, scene: &Scene) {
1595 let mut inner = self.0.state.borrow_mut();
1596
1597 if inner.renderer.device_lost() {
1598 let raw_window = RawWindow {
1599 connection: as_raw_xcb_connection::AsRawXcbConnection::as_raw_xcb_connection(
1600 &*self.0.xcb,
1601 ) as *mut _,
1602 screen_id: inner.x_screen_index,
1603 window_id: self.0.x_window,
1604 visual_id: inner.visual_id,
1605 };
1606 let display_handle = rwh::HasDisplayHandle::display_handle(&raw_window)
1607 .unwrap()
1608 .as_raw();
1609 let window_handle = rwh::HasWindowHandle::window_handle(&raw_window)
1610 .unwrap()
1611 .as_raw();
1612
1613 inner
1614 .renderer
1615 .recover(display_handle, window_handle)
1616 .unwrap_or_else(|err| {
1617 panic!(
1618 "GPU device lost and recovery failed. \
1619 This may happen after system suspend/resume. \
1620 Please restart the application.\n\nError: {err}"
1621 )
1622 });
1623
1624 // The current scene references atlas textures that were cleared during recovery.
1625 // Skip this frame and let the next frame rebuild the scene with fresh textures.
1626 return;
1627 }
1628
1629 inner.renderer.draw(scene);
1630 }
1631
1632 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
1633 let inner = self.0.state.borrow();
1634 inner.renderer.sprite_atlas().clone()
1635 }
1636
1637 fn show_window_menu(&self, position: Point<Pixels>) {
1638 let state = self.0.state.borrow();
1639
1640 check_reply(
1641 || "X11 UngrabPointer failed.",
1642 self.0.xcb.ungrab_pointer(x11rb::CURRENT_TIME),
1643 )
1644 .log_err();
1645
1646 let Some(coords) = self.get_root_position(position).log_err() else {
1647 return;
1648 };
1649 let message = ClientMessageEvent::new(
1650 32,
1651 self.0.x_window,
1652 state.atoms._GTK_SHOW_WINDOW_MENU,
1653 [
1654 XINPUT_ALL_DEVICE_GROUPS as u32,
1655 coords.dst_x as u32,
1656 coords.dst_y as u32,
1657 0,
1658 0,
1659 ],
1660 );
1661 check_reply(
1662 || "X11 SendEvent to show window menu failed.",
1663 self.0.xcb.send_event(
1664 false,
1665 state.x_root_window,
1666 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
1667 message,
1668 ),
1669 )
1670 .log_err();
1671 }
1672
1673 fn start_window_move(&self) {
1674 const MOVERESIZE_MOVE: u32 = 8;
1675 self.send_moveresize(MOVERESIZE_MOVE).log_err();
1676 }
1677
1678 fn start_window_resize(&self, edge: ResizeEdge) {
1679 self.send_moveresize(resize_edge_to_moveresize(edge))
1680 .log_err();
1681 }
1682
1683 fn window_decorations(&self) -> gpui::Decorations {
1684 let state = self.0.state.borrow();
1685
1686 // Client window decorations require compositor support
1687 if !state.client_side_decorations_supported {
1688 return Decorations::Server;
1689 }
1690
1691 match state.decorations {
1692 WindowDecorations::Server => Decorations::Server,
1693 WindowDecorations::Client => {
1694 let tiling = if state.fullscreen {
1695 Tiling::tiled()
1696 } else if let Some(edge_constraints) = &state.edge_constraints {
1697 edge_constraints.to_tiling()
1698 } else {
1699 // https://source.chromium.org/chromium/chromium/src/+/main:ui/ozone/platform/x11/x11_window.cc;l=2519;drc=1f14cc876cc5bf899d13284a12c451498219bb2d
1700 Tiling {
1701 top: state.maximized_vertical,
1702 bottom: state.maximized_vertical,
1703 left: state.maximized_horizontal,
1704 right: state.maximized_horizontal,
1705 }
1706 };
1707 Decorations::Client { tiling }
1708 }
1709 }
1710 }
1711
1712 fn set_client_inset(&self, inset: Pixels) {
1713 let mut state = self.0.state.borrow_mut();
1714
1715 let dp = (f32::from(inset) * state.scale_factor) as u32;
1716
1717 let insets = if state.fullscreen {
1718 [0, 0, 0, 0]
1719 } else if let Some(edge_constraints) = &state.edge_constraints {
1720 let left = if edge_constraints.left_tiled { 0 } else { dp };
1721 let top = if edge_constraints.top_tiled { 0 } else { dp };
1722 let right = if edge_constraints.right_tiled { 0 } else { dp };
1723 let bottom = if edge_constraints.bottom_tiled { 0 } else { dp };
1724
1725 [left, right, top, bottom]
1726 } else {
1727 let (left, right) = if state.maximized_horizontal {
1728 (0, 0)
1729 } else {
1730 (dp, dp)
1731 };
1732 let (top, bottom) = if state.maximized_vertical {
1733 (0, 0)
1734 } else {
1735 (dp, dp)
1736 };
1737 [left, right, top, bottom]
1738 };
1739
1740 if state.last_insets != insets {
1741 state.last_insets = insets;
1742
1743 check_reply(
1744 || "X11 ChangeProperty for _GTK_FRAME_EXTENTS failed.",
1745 self.0.xcb.change_property(
1746 xproto::PropMode::REPLACE,
1747 self.0.x_window,
1748 state.atoms._GTK_FRAME_EXTENTS,
1749 xproto::AtomEnum::CARDINAL,
1750 size_of::<u32>() as u8 * 8,
1751 4,
1752 bytemuck::cast_slice::<u32, u8>(&insets),
1753 ),
1754 )
1755 .log_err();
1756 }
1757 }
1758
1759 fn request_decorations(&self, mut decorations: gpui::WindowDecorations) {
1760 let mut state = self.0.state.borrow_mut();
1761
1762 if matches!(decorations, gpui::WindowDecorations::Client)
1763 && !state.client_side_decorations_supported
1764 {
1765 log::info!(
1766 "x11: no compositor present, falling back to server-side window decorations"
1767 );
1768 decorations = gpui::WindowDecorations::Server;
1769 }
1770
1771 // https://github.com/rust-windowing/winit/blob/master/src/platform_impl/linux/x11/util/hint.rs#L53-L87
1772 let hints_data: [u32; 5] = match decorations {
1773 WindowDecorations::Server => [1 << 1, 0, 1, 0, 0],
1774 WindowDecorations::Client => [1 << 1, 0, 0, 0, 0],
1775 };
1776
1777 let success = check_reply(
1778 || "X11 ChangeProperty for _MOTIF_WM_HINTS failed.",
1779 self.0.xcb.change_property(
1780 xproto::PropMode::REPLACE,
1781 self.0.x_window,
1782 state.atoms._MOTIF_WM_HINTS,
1783 state.atoms._MOTIF_WM_HINTS,
1784 size_of::<u32>() as u8 * 8,
1785 5,
1786 bytemuck::cast_slice::<u32, u8>(&hints_data),
1787 ),
1788 )
1789 .log_err();
1790
1791 let Some(()) = success else {
1792 return;
1793 };
1794
1795 match decorations {
1796 WindowDecorations::Server => {
1797 state.decorations = WindowDecorations::Server;
1798 let is_transparent = state.is_transparent();
1799 state.renderer.update_transparency(is_transparent);
1800 }
1801 WindowDecorations::Client => {
1802 state.decorations = WindowDecorations::Client;
1803 let is_transparent = state.is_transparent();
1804 state.renderer.update_transparency(is_transparent);
1805 }
1806 }
1807
1808 drop(state);
1809 let mut callbacks = self.0.callbacks.borrow_mut();
1810 if let Some(appearance_changed) = callbacks.appearance_changed.as_mut() {
1811 appearance_changed();
1812 }
1813 }
1814
1815 fn update_ime_position(&self, bounds: Bounds<Pixels>) {
1816 let state = self.0.state.borrow();
1817 let client = state.client.clone();
1818 drop(state);
1819 client.update_ime_position(bounds);
1820 }
1821
1822 fn gpu_specs(&self) -> Option<GpuSpecs> {
1823 self.0.state.borrow().renderer.gpu_specs().into()
1824 }
1825}