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