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
228#[derive(Debug, Clone, Copy)]
229struct RawWindow {
230 connection: *mut c_void,
231 screen_id: usize,
232 window_id: u32,
233 visual_id: u32,
234}
235
236// Safety: The raw pointers in RawWindow point to X11 connection
237// which is valid for the window's lifetime. These are used only for
238// passing to wgpu which needs Send+Sync for surface creation.
239unsafe impl Send for RawWindow {}
240unsafe impl Sync for RawWindow {}
241
242#[derive(Default)]
243pub struct Callbacks {
244 request_frame: Option<Box<dyn FnMut(RequestFrameOptions)>>,
245 input: Option<Box<dyn FnMut(PlatformInput) -> gpui::DispatchEventResult>>,
246 active_status_change: Option<Box<dyn FnMut(bool)>>,
247 hovered_status_change: Option<Box<dyn FnMut(bool)>>,
248 resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
249 moved: Option<Box<dyn FnMut()>>,
250 should_close: Option<Box<dyn FnMut() -> bool>>,
251 close: Option<Box<dyn FnOnce()>>,
252 appearance_changed: Option<Box<dyn FnMut()>>,
253}
254
255pub struct X11WindowState {
256 pub destroyed: bool,
257 parent: Option<X11WindowStatePtr>,
258 children: FxHashSet<xproto::Window>,
259 client: X11ClientStatePtr,
260 executor: ForegroundExecutor,
261 atoms: XcbAtoms,
262 x_root_window: xproto::Window,
263 x_screen_index: usize,
264 visual_id: u32,
265 pub(crate) counter_id: sync::Counter,
266 pub(crate) last_sync_counter: Option<sync::Int64>,
267 bounds: Bounds<Pixels>,
268 scale_factor: f32,
269 renderer: WgpuRenderer,
270 display: Rc<dyn PlatformDisplay>,
271 input_handler: Option<PlatformInputHandler>,
272 appearance: WindowAppearance,
273 background_appearance: WindowBackgroundAppearance,
274 maximized_vertical: bool,
275 maximized_horizontal: bool,
276 hidden: bool,
277 active: bool,
278 hovered: bool,
279 fullscreen: bool,
280 client_side_decorations_supported: bool,
281 decorations: WindowDecorations,
282 edge_constraints: Option<EdgeConstraints>,
283 pub handle: AnyWindowHandle,
284 last_insets: [u32; 4],
285}
286
287impl X11WindowState {
288 fn is_transparent(&self) -> bool {
289 self.background_appearance != WindowBackgroundAppearance::Opaque
290 }
291}
292
293#[derive(Clone)]
294pub(crate) struct X11WindowStatePtr {
295 pub state: Rc<RefCell<X11WindowState>>,
296 pub(crate) callbacks: Rc<RefCell<Callbacks>>,
297 xcb: Rc<XCBConnection>,
298 pub(crate) x_window: xproto::Window,
299}
300
301impl rwh::HasWindowHandle for RawWindow {
302 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
303 let Some(non_zero) = NonZeroU32::new(self.window_id) else {
304 log::error!("RawWindow.window_id zero when getting window handle.");
305 return Err(rwh::HandleError::Unavailable);
306 };
307 let mut handle = rwh::XcbWindowHandle::new(non_zero);
308 handle.visual_id = NonZeroU32::new(self.visual_id);
309 Ok(unsafe { rwh::WindowHandle::borrow_raw(handle.into()) })
310 }
311}
312impl rwh::HasDisplayHandle for RawWindow {
313 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
314 let Some(non_zero) = NonNull::new(self.connection) else {
315 log::error!("Null RawWindow.connection when getting display handle.");
316 return Err(rwh::HandleError::Unavailable);
317 };
318 let handle = rwh::XcbDisplayHandle::new(Some(non_zero), self.screen_id as i32);
319 Ok(unsafe { rwh::DisplayHandle::borrow_raw(handle.into()) })
320 }
321}
322
323impl rwh::HasWindowHandle for X11Window {
324 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
325 let Some(non_zero) = NonZeroU32::new(self.0.x_window) else {
326 return Err(rwh::HandleError::Unavailable);
327 };
328 let handle = rwh::XcbWindowHandle::new(non_zero);
329 Ok(unsafe { rwh::WindowHandle::borrow_raw(handle.into()) })
330 }
331}
332
333impl rwh::HasDisplayHandle for X11Window {
334 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
335 let connection =
336 as_raw_xcb_connection::AsRawXcbConnection::as_raw_xcb_connection(&*self.0.xcb)
337 as *mut _;
338 let Some(non_zero) = NonNull::new(connection) else {
339 return Err(rwh::HandleError::Unavailable);
340 };
341 let screen_id = {
342 let state = self.0.state.borrow();
343 u32::from(state.display.id()) as i32
344 };
345 let handle = rwh::XcbDisplayHandle::new(Some(non_zero), screen_id);
346 Ok(unsafe { rwh::DisplayHandle::borrow_raw(handle.into()) })
347 }
348}
349
350pub(crate) fn xcb_flush(xcb: &XCBConnection) {
351 xcb.flush()
352 .map_err(handle_connection_error)
353 .context("X11 flush failed")
354 .log_err();
355}
356
357pub(crate) fn check_reply<E, F, C>(
358 failure_context: F,
359 result: Result<VoidCookie<'_, C>, ConnectionError>,
360) -> anyhow::Result<()>
361where
362 E: Display + Send + Sync + 'static,
363 F: FnOnce() -> E,
364 C: RequestConnection,
365{
366 result
367 .map_err(handle_connection_error)
368 .and_then(|response| response.check().map_err(|reply_error| anyhow!(reply_error)))
369 .with_context(failure_context)
370}
371
372pub(crate) fn get_reply<E, F, C, O>(
373 failure_context: F,
374 result: Result<Cookie<'_, C, O>, ConnectionError>,
375) -> anyhow::Result<O>
376where
377 E: Display + Send + Sync + 'static,
378 F: FnOnce() -> E,
379 C: RequestConnection,
380 O: x11rb::x11_utils::TryParse,
381{
382 result
383 .map_err(handle_connection_error)
384 .and_then(|response| response.reply().map_err(|reply_error| anyhow!(reply_error)))
385 .with_context(failure_context)
386}
387
388/// Convert X11 connection errors to `anyhow::Error` and panic for unrecoverable errors.
389pub(crate) fn handle_connection_error(err: ConnectionError) -> anyhow::Error {
390 match err {
391 ConnectionError::UnknownError => anyhow!("X11 connection: Unknown error"),
392 ConnectionError::UnsupportedExtension => anyhow!("X11 connection: Unsupported extension"),
393 ConnectionError::MaximumRequestLengthExceeded => {
394 anyhow!("X11 connection: Maximum request length exceeded")
395 }
396 ConnectionError::FdPassingFailed => {
397 panic!("X11 connection: File descriptor passing failed")
398 }
399 ConnectionError::ParseError(parse_error) => {
400 anyhow!(parse_error).context("Parse error in X11 response")
401 }
402 ConnectionError::InsufficientMemory => panic!("X11 connection: Insufficient memory"),
403 ConnectionError::IoError(err) => anyhow!(err).context("X11 connection: IOError"),
404 _ => anyhow!(err),
405 }
406}
407
408impl X11WindowState {
409 pub fn new(
410 handle: AnyWindowHandle,
411 client: X11ClientStatePtr,
412 executor: ForegroundExecutor,
413 gpu_context: gpui_wgpu::GpuContext,
414 compositor_gpu: Option<CompositorGpuHint>,
415 params: WindowParams,
416 xcb: &Rc<XCBConnection>,
417 client_side_decorations_supported: bool,
418 x_main_screen_index: usize,
419 x_window: xproto::Window,
420 atoms: &XcbAtoms,
421 scale_factor: f32,
422 appearance: WindowAppearance,
423 parent_window: Option<X11WindowStatePtr>,
424 ) -> anyhow::Result<Self> {
425 let x_screen_index = params
426 .display_id
427 .map_or(x_main_screen_index, |did| u32::from(did) as usize);
428
429 let visual_set = find_visuals(xcb, x_screen_index);
430
431 let visual = match visual_set.transparent {
432 Some(visual) => visual,
433 None => {
434 log::warn!("Unable to find a transparent visual",);
435 visual_set.inherit
436 }
437 };
438 log::info!("Using {:?}", visual);
439
440 let colormap = if visual.colormap != 0 {
441 visual.colormap
442 } else {
443 let id = xcb.generate_id()?;
444 log::info!("Creating colormap {}", id);
445 check_reply(
446 || format!("X11 CreateColormap failed. id: {}", id),
447 xcb.create_colormap(xproto::ColormapAlloc::NONE, id, visual_set.root, visual.id),
448 )?;
449 id
450 };
451
452 let win_aux = xproto::CreateWindowAux::new()
453 // https://stackoverflow.com/questions/43218127/x11-xlib-xcb-creating-a-window-requires-border-pixel-if-specifying-colormap-wh
454 .border_pixel(visual_set.black_pixel)
455 .colormap(colormap)
456 .override_redirect((params.kind == WindowKind::PopUp) as u32)
457 .event_mask(
458 xproto::EventMask::EXPOSURE
459 | xproto::EventMask::STRUCTURE_NOTIFY
460 | xproto::EventMask::FOCUS_CHANGE
461 | xproto::EventMask::KEY_PRESS
462 | xproto::EventMask::KEY_RELEASE
463 | xproto::EventMask::PROPERTY_CHANGE
464 | xproto::EventMask::VISIBILITY_CHANGE,
465 );
466
467 let mut bounds = params.bounds.to_device_pixels(scale_factor);
468 if bounds.size.width.0 == 0 || bounds.size.height.0 == 0 {
469 log::warn!(
470 "Window bounds contain a zero value. height={}, width={}. Falling back to defaults.",
471 bounds.size.height.0,
472 bounds.size.width.0
473 );
474 bounds.size.width = 800.into();
475 bounds.size.height = 600.into();
476 }
477
478 check_reply(
479 || {
480 format!(
481 "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: {}",
482 visual.depth,
483 x_window,
484 visual_set.root,
485 bounds.origin.x.0 + 2,
486 bounds.origin.y.0,
487 bounds.size.width.0,
488 bounds.size.height.0
489 )
490 },
491 xcb.create_window(
492 visual.depth,
493 x_window,
494 visual_set.root,
495 (bounds.origin.x.0 + 2) as i16,
496 bounds.origin.y.0 as i16,
497 bounds.size.width.0 as u16,
498 bounds.size.height.0 as u16,
499 0,
500 xproto::WindowClass::INPUT_OUTPUT,
501 visual.id,
502 &win_aux,
503 ),
504 )?;
505
506 // Collect errors during setup, so that window can be destroyed on failure.
507 let setup_result = maybe!({
508 let pid = std::process::id();
509 check_reply(
510 || "X11 ChangeProperty for _NET_WM_PID failed.",
511 xcb.change_property32(
512 xproto::PropMode::REPLACE,
513 x_window,
514 atoms._NET_WM_PID,
515 xproto::AtomEnum::CARDINAL,
516 &[pid],
517 ),
518 )?;
519
520 let reply = get_reply(|| "X11 GetGeometry failed.", xcb.get_geometry(x_window))?;
521 if reply.x == 0 && reply.y == 0 {
522 bounds.origin.x.0 += 2;
523 // Work around a bug where our rendered content appears
524 // outside the window bounds when opened at the default position
525 // (14px, 49px on X + Gnome + Ubuntu 22).
526 let x = bounds.origin.x.0;
527 let y = bounds.origin.y.0;
528 check_reply(
529 || format!("X11 ConfigureWindow failed. x: {}, y: {}", x, y),
530 xcb.configure_window(x_window, &xproto::ConfigureWindowAux::new().x(x).y(y)),
531 )?;
532 }
533 if let Some(titlebar) = params.titlebar
534 && let Some(title) = titlebar.title
535 {
536 check_reply(
537 || "X11 ChangeProperty8 on WM_NAME failed.",
538 xcb.change_property8(
539 xproto::PropMode::REPLACE,
540 x_window,
541 xproto::AtomEnum::WM_NAME,
542 xproto::AtomEnum::STRING,
543 title.as_bytes(),
544 ),
545 )?;
546 check_reply(
547 || "X11 ChangeProperty8 on _NET_WM_NAME failed.",
548 xcb.change_property8(
549 xproto::PropMode::REPLACE,
550 x_window,
551 atoms._NET_WM_NAME,
552 atoms.UTF8_STRING,
553 title.as_bytes(),
554 ),
555 )?;
556 }
557
558 if params.kind == WindowKind::PopUp {
559 check_reply(
560 || "X11 ChangeProperty32 setting window type for pop-up failed.",
561 xcb.change_property32(
562 xproto::PropMode::REPLACE,
563 x_window,
564 atoms._NET_WM_WINDOW_TYPE,
565 xproto::AtomEnum::ATOM,
566 &[atoms._NET_WM_WINDOW_TYPE_NOTIFICATION],
567 ),
568 )?;
569 }
570
571 if params.kind == WindowKind::Floating || params.kind == WindowKind::Dialog {
572 if let Some(parent_window) = parent_window.as_ref().map(|w| w.x_window) {
573 // WM_TRANSIENT_FOR hint indicating the main application window. For floating windows, we set
574 // a parent window (WM_TRANSIENT_FOR) such that the window manager knows where to
575 // place the floating window in relation to the main window.
576 // https://specifications.freedesktop.org/wm-spec/1.4/ar01s05.html
577 check_reply(
578 || "X11 ChangeProperty32 setting WM_TRANSIENT_FOR for floating window failed.",
579 xcb.change_property32(
580 xproto::PropMode::REPLACE,
581 x_window,
582 atoms.WM_TRANSIENT_FOR,
583 xproto::AtomEnum::WINDOW,
584 &[parent_window],
585 ),
586 )?;
587 }
588 }
589
590 let parent = if params.kind == WindowKind::Dialog
591 && let Some(parent) = parent_window
592 {
593 parent.add_child(x_window);
594
595 Some(parent)
596 } else {
597 None
598 };
599
600 if params.kind == WindowKind::Dialog {
601 // _NET_WM_WINDOW_TYPE_DIALOG indicates that this is a dialog (floating) window
602 // https://specifications.freedesktop.org/wm-spec/1.4/ar01s05.html
603 check_reply(
604 || "X11 ChangeProperty32 setting window type for dialog window failed.",
605 xcb.change_property32(
606 xproto::PropMode::REPLACE,
607 x_window,
608 atoms._NET_WM_WINDOW_TYPE,
609 xproto::AtomEnum::ATOM,
610 &[atoms._NET_WM_WINDOW_TYPE_DIALOG],
611 ),
612 )?;
613
614 // We set the modal state for dialog windows, so that the window manager
615 // can handle it appropriately (e.g., prevent interaction with the parent window
616 // while the dialog is open).
617 check_reply(
618 || "X11 ChangeProperty32 setting modal state for dialog window failed.",
619 xcb.change_property32(
620 xproto::PropMode::REPLACE,
621 x_window,
622 atoms._NET_WM_STATE,
623 xproto::AtomEnum::ATOM,
624 &[atoms._NET_WM_STATE_MODAL],
625 ),
626 )?;
627 }
628
629 check_reply(
630 || "X11 ChangeProperty32 setting protocols failed.",
631 xcb.change_property32(
632 xproto::PropMode::REPLACE,
633 x_window,
634 atoms.WM_PROTOCOLS,
635 xproto::AtomEnum::ATOM,
636 &[atoms.WM_DELETE_WINDOW, atoms._NET_WM_SYNC_REQUEST],
637 ),
638 )?;
639
640 get_reply(
641 || "X11 sync protocol initialize failed.",
642 sync::initialize(xcb, 3, 1),
643 )?;
644 let sync_request_counter = xcb.generate_id()?;
645 check_reply(
646 || "X11 sync CreateCounter failed.",
647 sync::create_counter(xcb, sync_request_counter, sync::Int64 { lo: 0, hi: 0 }),
648 )?;
649
650 check_reply(
651 || "X11 ChangeProperty32 setting sync request counter failed.",
652 xcb.change_property32(
653 xproto::PropMode::REPLACE,
654 x_window,
655 atoms._NET_WM_SYNC_REQUEST_COUNTER,
656 xproto::AtomEnum::CARDINAL,
657 &[sync_request_counter],
658 ),
659 )?;
660
661 check_reply(
662 || "X11 XiSelectEvents failed.",
663 xcb.xinput_xi_select_events(
664 x_window,
665 &[xinput::EventMask {
666 deviceid: XINPUT_ALL_DEVICE_GROUPS,
667 mask: vec![
668 xinput::XIEventMask::MOTION
669 | xinput::XIEventMask::BUTTON_PRESS
670 | xinput::XIEventMask::BUTTON_RELEASE
671 | xinput::XIEventMask::ENTER
672 | xinput::XIEventMask::LEAVE,
673 ],
674 }],
675 ),
676 )?;
677
678 check_reply(
679 || "X11 XiSelectEvents for device changes failed.",
680 xcb.xinput_xi_select_events(
681 x_window,
682 &[xinput::EventMask {
683 deviceid: XINPUT_ALL_DEVICES,
684 mask: vec![
685 xinput::XIEventMask::HIERARCHY | xinput::XIEventMask::DEVICE_CHANGED,
686 ],
687 }],
688 ),
689 )?;
690
691 xcb_flush(xcb);
692
693 let renderer = {
694 let raw_window = RawWindow {
695 connection: as_raw_xcb_connection::AsRawXcbConnection::as_raw_xcb_connection(
696 xcb,
697 ) as *mut _,
698 screen_id: x_screen_index,
699 window_id: x_window,
700 visual_id: visual.id,
701 };
702 let config = WgpuSurfaceConfig {
703 // Note: this has to be done after the GPU init, or otherwise
704 // the sizes are immediately invalidated.
705 size: query_render_extent(xcb, x_window)?,
706 // We set it to transparent by default, even if we have client-side
707 // decorations, since those seem to work on X11 even without `true` here.
708 // If the window appearance changes, then the renderer will get updated
709 // too
710 transparent: false,
711 };
712 WgpuRenderer::new(gpu_context, &raw_window, config, compositor_gpu)?
713 };
714
715 // Set max window size hints based on the GPU's maximum texture dimension.
716 // This prevents the window from being resized larger than what the GPU can render.
717 let max_texture_size = renderer.max_texture_size();
718 let mut size_hints = WmSizeHints::new();
719 if let Some(size) = params.window_min_size {
720 size_hints.min_size =
721 Some((f32::from(size.width) as i32, f32::from(size.height) as i32));
722 }
723 size_hints.max_size = Some((max_texture_size as i32, max_texture_size as i32));
724 check_reply(
725 || {
726 format!(
727 "X11 change of WM_SIZE_HINTS failed. max_size: {:?}",
728 max_texture_size
729 )
730 },
731 size_hints.set_normal_hints(xcb, x_window),
732 )?;
733
734 let display = Rc::new(X11Display::new(xcb, scale_factor, x_screen_index)?);
735
736 Ok(Self {
737 parent,
738 children: FxHashSet::default(),
739 client,
740 executor,
741 display,
742 x_root_window: visual_set.root,
743 x_screen_index,
744 visual_id: visual.id,
745 bounds: bounds.to_pixels(scale_factor),
746 scale_factor,
747 renderer,
748 atoms: *atoms,
749 input_handler: None,
750 active: false,
751 hovered: false,
752 fullscreen: false,
753 maximized_vertical: false,
754 maximized_horizontal: false,
755 hidden: false,
756 appearance,
757 handle,
758 background_appearance: WindowBackgroundAppearance::Opaque,
759 destroyed: false,
760 client_side_decorations_supported,
761 decorations: WindowDecorations::Server,
762 last_insets: [0, 0, 0, 0],
763 edge_constraints: None,
764 counter_id: sync_request_counter,
765 last_sync_counter: None,
766 })
767 });
768
769 if setup_result.is_err() {
770 check_reply(
771 || "X11 DestroyWindow failed while cleaning it up after setup failure.",
772 xcb.destroy_window(x_window),
773 )?;
774 xcb_flush(xcb);
775 }
776
777 setup_result
778 }
779
780 fn content_size(&self) -> Size<Pixels> {
781 self.bounds.size
782 }
783}
784
785pub(crate) struct X11Window(pub X11WindowStatePtr);
786
787impl Drop for X11Window {
788 fn drop(&mut self) {
789 let mut state = self.0.state.borrow_mut();
790
791 if let Some(parent) = state.parent.as_ref() {
792 parent.state.borrow_mut().children.remove(&self.0.x_window);
793 }
794
795 state.renderer.destroy();
796
797 let destroy_x_window = maybe!({
798 check_reply(
799 || "X11 DestroyWindow failure.",
800 self.0.xcb.destroy_window(self.0.x_window),
801 )?;
802 xcb_flush(&self.0.xcb);
803
804 anyhow::Ok(())
805 })
806 .log_err();
807
808 if destroy_x_window.is_some() {
809 state.destroyed = true;
810
811 let this_ptr = self.0.clone();
812 let client_ptr = state.client.clone();
813 state
814 .executor
815 .spawn(async move {
816 this_ptr.close();
817 client_ptr.drop_window(this_ptr.x_window);
818 })
819 .detach();
820 }
821
822 drop(state);
823 }
824}
825
826enum WmHintPropertyState {
827 // Remove = 0,
828 // Add = 1,
829 Toggle = 2,
830}
831
832impl X11Window {
833 pub fn new(
834 handle: AnyWindowHandle,
835 client: X11ClientStatePtr,
836 executor: ForegroundExecutor,
837 gpu_context: gpui_wgpu::GpuContext,
838 compositor_gpu: Option<CompositorGpuHint>,
839 params: WindowParams,
840 xcb: &Rc<XCBConnection>,
841 client_side_decorations_supported: bool,
842 x_main_screen_index: usize,
843 x_window: xproto::Window,
844 atoms: &XcbAtoms,
845 scale_factor: f32,
846 appearance: WindowAppearance,
847 parent_window: Option<X11WindowStatePtr>,
848 ) -> anyhow::Result<Self> {
849 let ptr = X11WindowStatePtr {
850 state: Rc::new(RefCell::new(X11WindowState::new(
851 handle,
852 client,
853 executor,
854 gpu_context,
855 compositor_gpu,
856 params,
857 xcb,
858 client_side_decorations_supported,
859 x_main_screen_index,
860 x_window,
861 atoms,
862 scale_factor,
863 appearance,
864 parent_window,
865 )?)),
866 callbacks: Rc::new(RefCell::new(Callbacks::default())),
867 xcb: xcb.clone(),
868 x_window,
869 };
870
871 let state = ptr.state.borrow_mut();
872 ptr.set_wm_properties(state)?;
873
874 Ok(Self(ptr))
875 }
876
877 fn set_wm_hints<C: Display + Send + Sync + 'static, F: FnOnce() -> C>(
878 &self,
879 failure_context: F,
880 wm_hint_property_state: WmHintPropertyState,
881 prop1: u32,
882 prop2: u32,
883 ) -> anyhow::Result<()> {
884 let state = self.0.state.borrow();
885 let message = ClientMessageEvent::new(
886 32,
887 self.0.x_window,
888 state.atoms._NET_WM_STATE,
889 [wm_hint_property_state as u32, prop1, prop2, 1, 0],
890 );
891 check_reply(
892 failure_context,
893 self.0.xcb.send_event(
894 false,
895 state.x_root_window,
896 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
897 message,
898 ),
899 )?;
900 xcb_flush(&self.0.xcb);
901 Ok(())
902 }
903
904 fn get_root_position(
905 &self,
906 position: Point<Pixels>,
907 ) -> anyhow::Result<TranslateCoordinatesReply> {
908 let state = self.0.state.borrow();
909 get_reply(
910 || "X11 TranslateCoordinates failed.",
911 self.0.xcb.translate_coordinates(
912 self.0.x_window,
913 state.x_root_window,
914 (f32::from(position.x) * state.scale_factor) as i16,
915 (f32::from(position.y) * state.scale_factor) as i16,
916 ),
917 )
918 }
919
920 fn send_moveresize(&self, flag: u32) -> anyhow::Result<()> {
921 let state = self.0.state.borrow();
922
923 check_reply(
924 || "X11 UngrabPointer before move/resize of window failed.",
925 self.0.xcb.ungrab_pointer(x11rb::CURRENT_TIME),
926 )?;
927
928 let pointer = get_reply(
929 || "X11 QueryPointer before move/resize of window failed.",
930 self.0.xcb.query_pointer(self.0.x_window),
931 )?;
932 let message = ClientMessageEvent::new(
933 32,
934 self.0.x_window,
935 state.atoms._NET_WM_MOVERESIZE,
936 [
937 pointer.root_x as u32,
938 pointer.root_y as u32,
939 flag,
940 0, // Left mouse button
941 0,
942 ],
943 );
944 check_reply(
945 || "X11 SendEvent to move/resize window failed.",
946 self.0.xcb.send_event(
947 false,
948 state.x_root_window,
949 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
950 message,
951 ),
952 )?;
953
954 xcb_flush(&self.0.xcb);
955 Ok(())
956 }
957}
958
959impl X11WindowStatePtr {
960 pub fn should_close(&self) -> bool {
961 let mut cb = self.callbacks.borrow_mut();
962 if let Some(mut should_close) = cb.should_close.take() {
963 let result = (should_close)();
964 cb.should_close = Some(should_close);
965 result
966 } else {
967 true
968 }
969 }
970
971 pub fn property_notify(&self, event: xproto::PropertyNotifyEvent) -> anyhow::Result<()> {
972 let state = self.state.borrow_mut();
973 if event.atom == state.atoms._NET_WM_STATE {
974 self.set_wm_properties(state)?;
975 } else if event.atom == state.atoms._GTK_EDGE_CONSTRAINTS {
976 self.set_edge_constraints(state)?;
977 }
978 Ok(())
979 }
980
981 fn set_edge_constraints(
982 &self,
983 mut state: std::cell::RefMut<X11WindowState>,
984 ) -> anyhow::Result<()> {
985 let reply = get_reply(
986 || "X11 GetProperty for _GTK_EDGE_CONSTRAINTS failed.",
987 self.xcb.get_property(
988 false,
989 self.x_window,
990 state.atoms._GTK_EDGE_CONSTRAINTS,
991 xproto::AtomEnum::CARDINAL,
992 0,
993 4,
994 ),
995 )?;
996
997 if reply.value_len != 0 {
998 if let Ok(bytes) = reply.value[0..4].try_into() {
999 let atom = u32::from_ne_bytes(bytes);
1000 let edge_constraints = EdgeConstraints::from_atom(atom);
1001 state.edge_constraints.replace(edge_constraints);
1002 } else {
1003 log::error!("Failed to parse GTK_EDGE_CONSTRAINTS");
1004 }
1005 }
1006
1007 Ok(())
1008 }
1009
1010 fn set_wm_properties(
1011 &self,
1012 mut state: std::cell::RefMut<X11WindowState>,
1013 ) -> anyhow::Result<()> {
1014 let reply = get_reply(
1015 || "X11 GetProperty for _NET_WM_STATE failed.",
1016 self.xcb.get_property(
1017 false,
1018 self.x_window,
1019 state.atoms._NET_WM_STATE,
1020 xproto::AtomEnum::ATOM,
1021 0,
1022 u32::MAX,
1023 ),
1024 )?;
1025
1026 let atoms = reply
1027 .value
1028 .chunks_exact(4)
1029 .map(|chunk| u32::from_ne_bytes([chunk[0], chunk[1], chunk[2], chunk[3]]));
1030
1031 state.active = false;
1032 state.fullscreen = false;
1033 state.maximized_vertical = false;
1034 state.maximized_horizontal = false;
1035 state.hidden = false;
1036
1037 for atom in atoms {
1038 if atom == state.atoms._NET_WM_STATE_FOCUSED {
1039 state.active = true;
1040 } else if atom == state.atoms._NET_WM_STATE_FULLSCREEN {
1041 state.fullscreen = true;
1042 } else if atom == state.atoms._NET_WM_STATE_MAXIMIZED_VERT {
1043 state.maximized_vertical = true;
1044 } else if atom == state.atoms._NET_WM_STATE_MAXIMIZED_HORZ {
1045 state.maximized_horizontal = true;
1046 } else if atom == state.atoms._NET_WM_STATE_HIDDEN {
1047 state.hidden = true;
1048 }
1049 }
1050
1051 Ok(())
1052 }
1053
1054 pub fn add_child(&self, child: xproto::Window) {
1055 let mut state = self.state.borrow_mut();
1056 state.children.insert(child);
1057 }
1058
1059 pub fn is_blocked(&self) -> bool {
1060 let state = self.state.borrow();
1061 !state.children.is_empty()
1062 }
1063
1064 pub fn close(&self) {
1065 let state = self.state.borrow();
1066 let client = state.client.clone();
1067 #[allow(clippy::mutable_key_type)]
1068 let children = state.children.clone();
1069 drop(state);
1070
1071 if let Some(client) = client.get_client() {
1072 for child in children {
1073 if let Some(child_window) = client.get_window(child) {
1074 child_window.close();
1075 }
1076 }
1077 }
1078
1079 let mut callbacks = self.callbacks.borrow_mut();
1080 if let Some(fun) = callbacks.close.take() {
1081 fun()
1082 }
1083 }
1084
1085 pub fn refresh(&self, request_frame_options: RequestFrameOptions) {
1086 let callback = self.callbacks.borrow_mut().request_frame.take();
1087 if let Some(mut fun) = callback {
1088 fun(request_frame_options);
1089 self.callbacks.borrow_mut().request_frame = Some(fun);
1090 }
1091 }
1092
1093 pub fn handle_input(&self, input: PlatformInput) {
1094 if self.is_blocked() {
1095 return;
1096 }
1097 let callback = self.callbacks.borrow_mut().input.take();
1098 if let Some(mut fun) = callback {
1099 let result = fun(input.clone());
1100 self.callbacks.borrow_mut().input = Some(fun);
1101 if !result.propagate {
1102 return;
1103 }
1104 }
1105 if let PlatformInput::KeyDown(event) = input {
1106 // only allow shift modifier when inserting text
1107 if event.keystroke.modifiers.is_subset_of(&Modifiers::shift()) {
1108 let mut state = self.state.borrow_mut();
1109 if let Some(mut input_handler) = state.input_handler.take() {
1110 if let Some(key_char) = &event.keystroke.key_char {
1111 drop(state);
1112 input_handler.replace_text_in_range(None, key_char);
1113 state = self.state.borrow_mut();
1114 }
1115 state.input_handler = Some(input_handler);
1116 }
1117 }
1118 }
1119 }
1120
1121 pub fn handle_ime_commit(&self, text: String) {
1122 if self.is_blocked() {
1123 return;
1124 }
1125 let mut state = self.state.borrow_mut();
1126 if let Some(mut input_handler) = state.input_handler.take() {
1127 drop(state);
1128 input_handler.replace_text_in_range(None, &text);
1129 let mut state = self.state.borrow_mut();
1130 state.input_handler = Some(input_handler);
1131 }
1132 }
1133
1134 pub fn handle_ime_preedit(&self, text: String) {
1135 if self.is_blocked() {
1136 return;
1137 }
1138 let mut state = self.state.borrow_mut();
1139 if let Some(mut input_handler) = state.input_handler.take() {
1140 drop(state);
1141 input_handler.replace_and_mark_text_in_range(None, &text, None);
1142 let mut state = self.state.borrow_mut();
1143 state.input_handler = Some(input_handler);
1144 }
1145 }
1146
1147 pub fn handle_ime_unmark(&self) {
1148 if self.is_blocked() {
1149 return;
1150 }
1151 let mut state = self.state.borrow_mut();
1152 if let Some(mut input_handler) = state.input_handler.take() {
1153 drop(state);
1154 input_handler.unmark_text();
1155 let mut state = self.state.borrow_mut();
1156 state.input_handler = Some(input_handler);
1157 }
1158 }
1159
1160 pub fn handle_ime_delete(&self) {
1161 if self.is_blocked() {
1162 return;
1163 }
1164 let mut state = self.state.borrow_mut();
1165 if let Some(mut input_handler) = state.input_handler.take() {
1166 drop(state);
1167 if let Some(marked) = input_handler.marked_text_range() {
1168 input_handler.replace_text_in_range(Some(marked), "");
1169 }
1170 let mut state = self.state.borrow_mut();
1171 state.input_handler = Some(input_handler);
1172 }
1173 }
1174
1175 pub fn get_ime_area(&self) -> Option<Bounds<ScaledPixels>> {
1176 let mut state = self.state.borrow_mut();
1177 let scale_factor = state.scale_factor;
1178 let mut bounds: Option<Bounds<Pixels>> = None;
1179 if let Some(mut input_handler) = state.input_handler.take() {
1180 drop(state);
1181 if let Some(selection) = input_handler.selected_text_range(true) {
1182 bounds = input_handler.bounds_for_range(selection.range);
1183 }
1184 let mut state = self.state.borrow_mut();
1185 state.input_handler = Some(input_handler);
1186 };
1187 bounds.map(|b| b.scale(scale_factor))
1188 }
1189
1190 pub fn set_bounds(&self, bounds: Bounds<i32>) -> anyhow::Result<()> {
1191 let (is_resize, content_size, scale_factor) = {
1192 let mut state = self.state.borrow_mut();
1193 let bounds = bounds.map(|f| px(f as f32 / state.scale_factor));
1194
1195 let is_resize = bounds.size.width != state.bounds.size.width
1196 || bounds.size.height != state.bounds.size.height;
1197
1198 // If it's a resize event (only width/height changed), we ignore `bounds.origin`
1199 // because it contains wrong values.
1200 if is_resize {
1201 state.bounds.size = bounds.size;
1202 } else {
1203 state.bounds = bounds;
1204 }
1205
1206 let gpu_size = query_render_extent(&self.xcb, self.x_window)?;
1207 state.renderer.update_drawable_size(gpu_size);
1208 let result = (is_resize, state.content_size(), state.scale_factor);
1209 if let Some(value) = state.last_sync_counter.take() {
1210 check_reply(
1211 || "X11 sync SetCounter failed.",
1212 sync::set_counter(&self.xcb, state.counter_id, value),
1213 )?;
1214 }
1215 result
1216 };
1217
1218 let mut callbacks = self.callbacks.borrow_mut();
1219 if let Some(ref mut fun) = callbacks.resize {
1220 fun(content_size, scale_factor)
1221 }
1222
1223 if !is_resize && let Some(ref mut fun) = callbacks.moved {
1224 fun();
1225 }
1226
1227 Ok(())
1228 }
1229
1230 pub fn set_active(&self, focus: bool) {
1231 let callback = self.callbacks.borrow_mut().active_status_change.take();
1232 if let Some(mut fun) = callback {
1233 fun(focus);
1234 self.callbacks.borrow_mut().active_status_change = Some(fun);
1235 }
1236 }
1237
1238 pub fn set_hovered(&self, focus: bool) {
1239 let callback = self.callbacks.borrow_mut().hovered_status_change.take();
1240 if let Some(mut fun) = callback {
1241 fun(focus);
1242 self.callbacks.borrow_mut().hovered_status_change = Some(fun);
1243 }
1244 }
1245
1246 pub fn set_appearance(&mut self, appearance: WindowAppearance) {
1247 let mut state = self.state.borrow_mut();
1248 state.appearance = appearance;
1249 let is_transparent = state.is_transparent();
1250 state.renderer.update_transparency(is_transparent);
1251 state.appearance = appearance;
1252 drop(state);
1253 let callback = self.callbacks.borrow_mut().appearance_changed.take();
1254 if let Some(mut fun) = callback {
1255 fun();
1256 self.callbacks.borrow_mut().appearance_changed = Some(fun);
1257 }
1258 }
1259}
1260
1261impl PlatformWindow for X11Window {
1262 fn bounds(&self) -> Bounds<Pixels> {
1263 self.0.state.borrow().bounds
1264 }
1265
1266 fn is_maximized(&self) -> bool {
1267 let state = self.0.state.borrow();
1268
1269 // A maximized window that gets minimized will still retain its maximized state.
1270 !state.hidden && state.maximized_vertical && state.maximized_horizontal
1271 }
1272
1273 fn window_bounds(&self) -> WindowBounds {
1274 let state = self.0.state.borrow();
1275 if self.is_maximized() {
1276 WindowBounds::Maximized(state.bounds)
1277 } else {
1278 WindowBounds::Windowed(state.bounds)
1279 }
1280 }
1281
1282 fn inner_window_bounds(&self) -> WindowBounds {
1283 let state = self.0.state.borrow();
1284 if self.is_maximized() {
1285 WindowBounds::Maximized(state.bounds)
1286 } else {
1287 let mut bounds = state.bounds;
1288 let [left, right, top, bottom] = state.last_insets;
1289
1290 let [left, right, top, bottom] = [
1291 px((left as f32) / state.scale_factor),
1292 px((right as f32) / state.scale_factor),
1293 px((top as f32) / state.scale_factor),
1294 px((bottom as f32) / state.scale_factor),
1295 ];
1296
1297 bounds.origin.x += left;
1298 bounds.origin.y += top;
1299 bounds.size.width -= left + right;
1300 bounds.size.height -= top + bottom;
1301
1302 WindowBounds::Windowed(bounds)
1303 }
1304 }
1305
1306 fn content_size(&self) -> Size<Pixels> {
1307 // After the wgpu migration, X11WindowState::content_size() returns logical pixels
1308 // (bounds.size is already divided by scale_factor in set_bounds), so no further
1309 // division is needed here. This matches the Wayland implementation.
1310 self.0.state.borrow().content_size()
1311 }
1312
1313 fn resize(&mut self, size: Size<Pixels>) {
1314 let state = self.0.state.borrow();
1315 let size = size.to_device_pixels(state.scale_factor);
1316 let width = size.width.0 as u32;
1317 let height = size.height.0 as u32;
1318
1319 check_reply(
1320 || {
1321 format!(
1322 "X11 ConfigureWindow failed. width: {}, height: {}",
1323 width, height
1324 )
1325 },
1326 self.0.xcb.configure_window(
1327 self.0.x_window,
1328 &xproto::ConfigureWindowAux::new()
1329 .width(width)
1330 .height(height),
1331 ),
1332 )
1333 .log_err();
1334 xcb_flush(&self.0.xcb);
1335 }
1336
1337 fn scale_factor(&self) -> f32 {
1338 self.0.state.borrow().scale_factor
1339 }
1340
1341 fn appearance(&self) -> WindowAppearance {
1342 self.0.state.borrow().appearance
1343 }
1344
1345 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
1346 Some(self.0.state.borrow().display.clone())
1347 }
1348
1349 fn mouse_position(&self) -> Point<Pixels> {
1350 get_reply(
1351 || "X11 QueryPointer failed.",
1352 self.0.xcb.query_pointer(self.0.x_window),
1353 )
1354 .log_err()
1355 .map_or(Point::new(Pixels::ZERO, Pixels::ZERO), |reply| {
1356 Point::new((reply.root_x as u32).into(), (reply.root_y as u32).into())
1357 })
1358 }
1359
1360 fn modifiers(&self) -> Modifiers {
1361 self.0
1362 .state
1363 .borrow()
1364 .client
1365 .0
1366 .upgrade()
1367 .map(|ref_cell| ref_cell.borrow().modifiers)
1368 .unwrap_or_default()
1369 }
1370
1371 fn capslock(&self) -> gpui::Capslock {
1372 self.0
1373 .state
1374 .borrow()
1375 .client
1376 .0
1377 .upgrade()
1378 .map(|ref_cell| ref_cell.borrow().capslock)
1379 .unwrap_or_default()
1380 }
1381
1382 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
1383 self.0.state.borrow_mut().input_handler = Some(input_handler);
1384 }
1385
1386 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
1387 self.0.state.borrow_mut().input_handler.take()
1388 }
1389
1390 fn prompt(
1391 &self,
1392 _level: PromptLevel,
1393 _msg: &str,
1394 _detail: Option<&str>,
1395 _answers: &[PromptButton],
1396 ) -> Option<futures::channel::oneshot::Receiver<usize>> {
1397 None
1398 }
1399
1400 fn activate(&self) {
1401 let data = [1, xproto::Time::CURRENT_TIME.into(), 0, 0, 0];
1402 let message = xproto::ClientMessageEvent::new(
1403 32,
1404 self.0.x_window,
1405 self.0.state.borrow().atoms._NET_ACTIVE_WINDOW,
1406 data,
1407 );
1408 self.0
1409 .xcb
1410 .send_event(
1411 false,
1412 self.0.state.borrow().x_root_window,
1413 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
1414 message,
1415 )
1416 .log_err();
1417 self.0
1418 .xcb
1419 .set_input_focus(
1420 xproto::InputFocus::POINTER_ROOT,
1421 self.0.x_window,
1422 xproto::Time::CURRENT_TIME,
1423 )
1424 .log_err();
1425 xcb_flush(&self.0.xcb);
1426 }
1427
1428 fn is_active(&self) -> bool {
1429 self.0.state.borrow().active
1430 }
1431
1432 fn is_hovered(&self) -> bool {
1433 self.0.state.borrow().hovered
1434 }
1435
1436 fn set_title(&mut self, title: &str) {
1437 check_reply(
1438 || "X11 ChangeProperty8 on WM_NAME failed.",
1439 self.0.xcb.change_property8(
1440 xproto::PropMode::REPLACE,
1441 self.0.x_window,
1442 xproto::AtomEnum::WM_NAME,
1443 xproto::AtomEnum::STRING,
1444 title.as_bytes(),
1445 ),
1446 )
1447 .log_err();
1448
1449 check_reply(
1450 || "X11 ChangeProperty8 on _NET_WM_NAME failed.",
1451 self.0.xcb.change_property8(
1452 xproto::PropMode::REPLACE,
1453 self.0.x_window,
1454 self.0.state.borrow().atoms._NET_WM_NAME,
1455 self.0.state.borrow().atoms.UTF8_STRING,
1456 title.as_bytes(),
1457 ),
1458 )
1459 .log_err();
1460 xcb_flush(&self.0.xcb);
1461 }
1462
1463 fn set_app_id(&mut self, app_id: &str) {
1464 let mut data = Vec::with_capacity(app_id.len() * 2 + 1);
1465 data.extend(app_id.bytes()); // instance https://unix.stackexchange.com/a/494170
1466 data.push(b'\0');
1467 data.extend(app_id.bytes()); // class
1468
1469 check_reply(
1470 || "X11 ChangeProperty8 for WM_CLASS failed.",
1471 self.0.xcb.change_property8(
1472 xproto::PropMode::REPLACE,
1473 self.0.x_window,
1474 xproto::AtomEnum::WM_CLASS,
1475 xproto::AtomEnum::STRING,
1476 &data,
1477 ),
1478 )
1479 .log_err();
1480 }
1481
1482 fn map_window(&mut self) -> anyhow::Result<()> {
1483 check_reply(
1484 || "X11 MapWindow failed.",
1485 self.0.xcb.map_window(self.0.x_window),
1486 )?;
1487 Ok(())
1488 }
1489
1490 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
1491 let mut state = self.0.state.borrow_mut();
1492 state.background_appearance = background_appearance;
1493 let transparent = state.is_transparent();
1494 state.renderer.update_transparency(transparent);
1495 }
1496
1497 fn background_appearance(&self) -> WindowBackgroundAppearance {
1498 self.0.state.borrow().background_appearance
1499 }
1500
1501 fn is_subpixel_rendering_supported(&self) -> bool {
1502 self.0
1503 .state
1504 .borrow()
1505 .client
1506 .0
1507 .upgrade()
1508 .map(|ref_cell| {
1509 let state = ref_cell.borrow();
1510 state
1511 .gpu_context
1512 .borrow()
1513 .as_ref()
1514 .is_some_and(|ctx| ctx.supports_dual_source_blending())
1515 })
1516 .unwrap_or_default()
1517 }
1518
1519 fn minimize(&self) {
1520 let state = self.0.state.borrow();
1521 const WINDOW_ICONIC_STATE: u32 = 3;
1522 let message = ClientMessageEvent::new(
1523 32,
1524 self.0.x_window,
1525 state.atoms.WM_CHANGE_STATE,
1526 [WINDOW_ICONIC_STATE, 0, 0, 0, 0],
1527 );
1528 check_reply(
1529 || "X11 SendEvent to minimize window failed.",
1530 self.0.xcb.send_event(
1531 false,
1532 state.x_root_window,
1533 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
1534 message,
1535 ),
1536 )
1537 .log_err();
1538 }
1539
1540 fn zoom(&self) {
1541 let state = self.0.state.borrow();
1542 self.set_wm_hints(
1543 || "X11 SendEvent to maximize a window failed.",
1544 WmHintPropertyState::Toggle,
1545 state.atoms._NET_WM_STATE_MAXIMIZED_VERT,
1546 state.atoms._NET_WM_STATE_MAXIMIZED_HORZ,
1547 )
1548 .log_err();
1549 }
1550
1551 fn toggle_fullscreen(&self) {
1552 let state = self.0.state.borrow();
1553 self.set_wm_hints(
1554 || "X11 SendEvent to fullscreen a window failed.",
1555 WmHintPropertyState::Toggle,
1556 state.atoms._NET_WM_STATE_FULLSCREEN,
1557 xproto::AtomEnum::NONE.into(),
1558 )
1559 .log_err();
1560 }
1561
1562 fn is_fullscreen(&self) -> bool {
1563 self.0.state.borrow().fullscreen
1564 }
1565
1566 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
1567 self.0.callbacks.borrow_mut().request_frame = Some(callback);
1568 }
1569
1570 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> gpui::DispatchEventResult>) {
1571 self.0.callbacks.borrow_mut().input = Some(callback);
1572 }
1573
1574 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1575 self.0.callbacks.borrow_mut().active_status_change = Some(callback);
1576 }
1577
1578 fn on_hover_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1579 self.0.callbacks.borrow_mut().hovered_status_change = Some(callback);
1580 }
1581
1582 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
1583 self.0.callbacks.borrow_mut().resize = Some(callback);
1584 }
1585
1586 fn on_moved(&self, callback: Box<dyn FnMut()>) {
1587 self.0.callbacks.borrow_mut().moved = Some(callback);
1588 }
1589
1590 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
1591 self.0.callbacks.borrow_mut().should_close = Some(callback);
1592 }
1593
1594 fn on_close(&self, callback: Box<dyn FnOnce()>) {
1595 self.0.callbacks.borrow_mut().close = Some(callback);
1596 }
1597
1598 fn on_hit_test_window_control(&self, _callback: Box<dyn FnMut() -> Option<WindowControlArea>>) {
1599 }
1600
1601 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
1602 self.0.callbacks.borrow_mut().appearance_changed = Some(callback);
1603 }
1604
1605 fn draw(&self, scene: &Scene) {
1606 let mut inner = self.0.state.borrow_mut();
1607
1608 if inner.renderer.device_lost() {
1609 let raw_window = RawWindow {
1610 connection: as_raw_xcb_connection::AsRawXcbConnection::as_raw_xcb_connection(
1611 &*self.0.xcb,
1612 ) as *mut _,
1613 screen_id: inner.x_screen_index,
1614 window_id: self.0.x_window,
1615 visual_id: inner.visual_id,
1616 };
1617 inner.renderer.recover(&raw_window).unwrap_or_else(|err| {
1618 panic!(
1619 "GPU device lost and recovery failed. \
1620 This may happen after system suspend/resume. \
1621 Please restart the application.\n\nError: {err}"
1622 )
1623 });
1624
1625 // The current scene references atlas textures that were cleared during recovery.
1626 // Skip this frame and let the next frame rebuild the scene with fresh textures.
1627 return;
1628 }
1629
1630 inner.renderer.draw(scene);
1631 }
1632
1633 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
1634 let inner = self.0.state.borrow();
1635 inner.renderer.sprite_atlas().clone()
1636 }
1637
1638 fn show_window_menu(&self, position: Point<Pixels>) {
1639 let state = self.0.state.borrow();
1640
1641 check_reply(
1642 || "X11 UngrabPointer failed.",
1643 self.0.xcb.ungrab_pointer(x11rb::CURRENT_TIME),
1644 )
1645 .log_err();
1646
1647 let Some(coords) = self.get_root_position(position).log_err() else {
1648 return;
1649 };
1650 let message = ClientMessageEvent::new(
1651 32,
1652 self.0.x_window,
1653 state.atoms._GTK_SHOW_WINDOW_MENU,
1654 [
1655 XINPUT_ALL_DEVICE_GROUPS as u32,
1656 coords.dst_x as u32,
1657 coords.dst_y as u32,
1658 0,
1659 0,
1660 ],
1661 );
1662 check_reply(
1663 || "X11 SendEvent to show window menu failed.",
1664 self.0.xcb.send_event(
1665 false,
1666 state.x_root_window,
1667 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
1668 message,
1669 ),
1670 )
1671 .log_err();
1672 }
1673
1674 fn start_window_move(&self) {
1675 const MOVERESIZE_MOVE: u32 = 8;
1676 self.send_moveresize(MOVERESIZE_MOVE).log_err();
1677 }
1678
1679 fn start_window_resize(&self, edge: ResizeEdge) {
1680 self.send_moveresize(resize_edge_to_moveresize(edge))
1681 .log_err();
1682 }
1683
1684 fn window_decorations(&self) -> gpui::Decorations {
1685 let state = self.0.state.borrow();
1686
1687 // Client window decorations require compositor support
1688 if !state.client_side_decorations_supported {
1689 return Decorations::Server;
1690 }
1691
1692 match state.decorations {
1693 WindowDecorations::Server => Decorations::Server,
1694 WindowDecorations::Client => {
1695 let tiling = if state.fullscreen {
1696 Tiling::tiled()
1697 } else if let Some(edge_constraints) = &state.edge_constraints {
1698 edge_constraints.to_tiling()
1699 } else {
1700 // https://source.chromium.org/chromium/chromium/src/+/main:ui/ozone/platform/x11/x11_window.cc;l=2519;drc=1f14cc876cc5bf899d13284a12c451498219bb2d
1701 Tiling {
1702 top: state.maximized_vertical,
1703 bottom: state.maximized_vertical,
1704 left: state.maximized_horizontal,
1705 right: state.maximized_horizontal,
1706 }
1707 };
1708 Decorations::Client { tiling }
1709 }
1710 }
1711 }
1712
1713 fn set_client_inset(&self, inset: Pixels) {
1714 let mut state = self.0.state.borrow_mut();
1715
1716 let dp = (f32::from(inset) * state.scale_factor) as u32;
1717
1718 let insets = if state.fullscreen {
1719 [0, 0, 0, 0]
1720 } else if let Some(edge_constraints) = &state.edge_constraints {
1721 let left = if edge_constraints.left_tiled { 0 } else { dp };
1722 let top = if edge_constraints.top_tiled { 0 } else { dp };
1723 let right = if edge_constraints.right_tiled { 0 } else { dp };
1724 let bottom = if edge_constraints.bottom_tiled { 0 } else { dp };
1725
1726 [left, right, top, bottom]
1727 } else {
1728 let (left, right) = if state.maximized_horizontal {
1729 (0, 0)
1730 } else {
1731 (dp, dp)
1732 };
1733 let (top, bottom) = if state.maximized_vertical {
1734 (0, 0)
1735 } else {
1736 (dp, dp)
1737 };
1738 [left, right, top, bottom]
1739 };
1740
1741 if state.last_insets != insets {
1742 state.last_insets = insets;
1743
1744 check_reply(
1745 || "X11 ChangeProperty for _GTK_FRAME_EXTENTS failed.",
1746 self.0.xcb.change_property(
1747 xproto::PropMode::REPLACE,
1748 self.0.x_window,
1749 state.atoms._GTK_FRAME_EXTENTS,
1750 xproto::AtomEnum::CARDINAL,
1751 size_of::<u32>() as u8 * 8,
1752 4,
1753 bytemuck::cast_slice::<u32, u8>(&insets),
1754 ),
1755 )
1756 .log_err();
1757 }
1758 }
1759
1760 fn request_decorations(&self, mut decorations: gpui::WindowDecorations) {
1761 let mut state = self.0.state.borrow_mut();
1762
1763 if matches!(decorations, gpui::WindowDecorations::Client)
1764 && !state.client_side_decorations_supported
1765 {
1766 log::info!(
1767 "x11: no compositor present, falling back to server-side window decorations"
1768 );
1769 decorations = gpui::WindowDecorations::Server;
1770 }
1771
1772 // https://github.com/rust-windowing/winit/blob/master/src/platform_impl/linux/x11/util/hint.rs#L53-L87
1773 let hints_data: [u32; 5] = match decorations {
1774 WindowDecorations::Server => [1 << 1, 0, 1, 0, 0],
1775 WindowDecorations::Client => [1 << 1, 0, 0, 0, 0],
1776 };
1777
1778 let success = check_reply(
1779 || "X11 ChangeProperty for _MOTIF_WM_HINTS failed.",
1780 self.0.xcb.change_property(
1781 xproto::PropMode::REPLACE,
1782 self.0.x_window,
1783 state.atoms._MOTIF_WM_HINTS,
1784 state.atoms._MOTIF_WM_HINTS,
1785 size_of::<u32>() as u8 * 8,
1786 5,
1787 bytemuck::cast_slice::<u32, u8>(&hints_data),
1788 ),
1789 )
1790 .log_err();
1791
1792 let Some(()) = success else {
1793 return;
1794 };
1795
1796 match decorations {
1797 WindowDecorations::Server => {
1798 state.decorations = WindowDecorations::Server;
1799 let is_transparent = state.is_transparent();
1800 state.renderer.update_transparency(is_transparent);
1801 }
1802 WindowDecorations::Client => {
1803 state.decorations = WindowDecorations::Client;
1804 let is_transparent = state.is_transparent();
1805 state.renderer.update_transparency(is_transparent);
1806 }
1807 }
1808
1809 drop(state);
1810 let mut callbacks = self.0.callbacks.borrow_mut();
1811 if let Some(appearance_changed) = callbacks.appearance_changed.as_mut() {
1812 appearance_changed();
1813 }
1814 }
1815
1816 fn update_ime_position(&self, bounds: Bounds<Pixels>) {
1817 let state = self.0.state.borrow();
1818 let client = state.client.clone();
1819 drop(state);
1820 client.update_ime_position(bounds);
1821 }
1822
1823 fn gpu_specs(&self) -> Option<GpuSpecs> {
1824 self.0.state.borrow().renderer.gpu_specs().into()
1825 }
1826}