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