1use anyhow::Context;
2
3use crate::{
4 platform::blade::{BladeRenderer, BladeSurfaceConfig},
5 px, size, AnyWindowHandle, Bounds, Decorations, DevicePixels, ForegroundExecutor, Modifiers,
6 Pixels, PlatformAtlas, PlatformDisplay, PlatformInput, PlatformInputHandler, PlatformWindow,
7 Point, PromptLevel, ResizeEdge, Scene, Size, Tiling, WindowAppearance,
8 WindowBackgroundAppearance, WindowBounds, WindowDecorations, WindowKind, WindowParams,
9 X11ClientStatePtr,
10};
11
12use blade_graphics as gpu;
13use raw_window_handle as rwh;
14use util::{maybe, ResultExt};
15use x11rb::{
16 connection::Connection,
17 protocol::{
18 randr::{self, ConnectionExt as _},
19 sync,
20 xinput::{self, ConnectionExt as _},
21 xproto::{self, ClientMessageEvent, ConnectionExt, EventMask, TranslateCoordinatesReply},
22 },
23 wrapper::ConnectionExt as _,
24 xcb_ffi::XCBConnection,
25};
26
27use std::{
28 cell::RefCell, ffi::c_void, mem::size_of, num::NonZeroU32, ops::Div, ptr::NonNull, rc::Rc,
29 sync::Arc, time::Duration,
30};
31
32use super::{X11Display, XINPUT_MASTER_DEVICE};
33x11rb::atom_manager! {
34 pub XcbAtoms: AtomsCookie {
35 UTF8_STRING,
36 WM_PROTOCOLS,
37 WM_DELETE_WINDOW,
38 WM_CHANGE_STATE,
39 _NET_WM_NAME,
40 _NET_WM_STATE,
41 _NET_WM_STATE_MAXIMIZED_VERT,
42 _NET_WM_STATE_MAXIMIZED_HORZ,
43 _NET_WM_STATE_FULLSCREEN,
44 _NET_WM_STATE_HIDDEN,
45 _NET_WM_STATE_FOCUSED,
46 _NET_ACTIVE_WINDOW,
47 _NET_WM_SYNC_REQUEST,
48 _NET_WM_SYNC_REQUEST_COUNTER,
49 _NET_WM_BYPASS_COMPOSITOR,
50 _NET_WM_MOVERESIZE,
51 _NET_WM_WINDOW_TYPE,
52 _NET_WM_WINDOW_TYPE_NOTIFICATION,
53 _NET_WM_SYNC,
54 _MOTIF_WM_HINTS,
55 _GTK_SHOW_WINDOW_MENU,
56 _GTK_FRAME_EXTENTS,
57 }
58}
59
60fn query_render_extent(xcb_connection: &XCBConnection, x_window: xproto::Window) -> gpu::Extent {
61 let reply = xcb_connection
62 .get_geometry(x_window)
63 .unwrap()
64 .reply()
65 .unwrap();
66 gpu::Extent {
67 width: reply.width as u32,
68 height: reply.height as u32,
69 depth: 1,
70 }
71}
72
73impl ResizeEdge {
74 fn to_moveresize(&self) -> u32 {
75 match self {
76 ResizeEdge::TopLeft => 0,
77 ResizeEdge::Top => 1,
78 ResizeEdge::TopRight => 2,
79 ResizeEdge::Right => 3,
80 ResizeEdge::BottomRight => 4,
81 ResizeEdge::Bottom => 5,
82 ResizeEdge::BottomLeft => 6,
83 ResizeEdge::Left => 7,
84 }
85 }
86}
87
88#[derive(Debug)]
89struct Visual {
90 id: xproto::Visualid,
91 colormap: u32,
92 depth: u8,
93}
94
95struct VisualSet {
96 inherit: Visual,
97 opaque: Option<Visual>,
98 transparent: Option<Visual>,
99 root: u32,
100 black_pixel: u32,
101}
102
103fn find_visuals(xcb_connection: &XCBConnection, screen_index: usize) -> VisualSet {
104 let screen = &xcb_connection.setup().roots[screen_index];
105 let mut set = VisualSet {
106 inherit: Visual {
107 id: screen.root_visual,
108 colormap: screen.default_colormap,
109 depth: screen.root_depth,
110 },
111 opaque: None,
112 transparent: None,
113 root: screen.root,
114 black_pixel: screen.black_pixel,
115 };
116
117 for depth_info in screen.allowed_depths.iter() {
118 for visual_type in depth_info.visuals.iter() {
119 let visual = Visual {
120 id: visual_type.visual_id,
121 colormap: 0,
122 depth: depth_info.depth,
123 };
124 log::debug!("Visual id: {}, class: {:?}, depth: {}, bits_per_value: {}, masks: 0x{:x} 0x{:x} 0x{:x}",
125 visual_type.visual_id,
126 visual_type.class,
127 depth_info.depth,
128 visual_type.bits_per_rgb_value,
129 visual_type.red_mask, visual_type.green_mask, visual_type.blue_mask,
130 );
131
132 if (
133 visual_type.red_mask,
134 visual_type.green_mask,
135 visual_type.blue_mask,
136 ) != (0xFF0000, 0xFF00, 0xFF)
137 {
138 continue;
139 }
140 let color_mask = visual_type.red_mask | visual_type.green_mask | visual_type.blue_mask;
141 let alpha_mask = color_mask as usize ^ ((1usize << depth_info.depth) - 1);
142
143 if alpha_mask == 0 {
144 if set.opaque.is_none() {
145 set.opaque = Some(visual);
146 }
147 } else {
148 if set.transparent.is_none() {
149 set.transparent = Some(visual);
150 }
151 }
152 }
153 }
154
155 set
156}
157
158struct RawWindow {
159 connection: *mut c_void,
160 screen_id: usize,
161 window_id: u32,
162 visual_id: u32,
163}
164
165#[derive(Default)]
166pub struct Callbacks {
167 request_frame: Option<Box<dyn FnMut()>>,
168 input: Option<Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>>,
169 active_status_change: Option<Box<dyn FnMut(bool)>>,
170 resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
171 moved: Option<Box<dyn FnMut()>>,
172 should_close: Option<Box<dyn FnMut() -> bool>>,
173 close: Option<Box<dyn FnOnce()>>,
174 appearance_changed: Option<Box<dyn FnMut()>>,
175}
176
177pub struct X11WindowState {
178 pub destroyed: bool,
179 refresh_rate: Duration,
180 client: X11ClientStatePtr,
181 executor: ForegroundExecutor,
182 atoms: XcbAtoms,
183 x_root_window: xproto::Window,
184 pub(crate) counter_id: sync::Counter,
185 pub(crate) last_sync_counter: Option<sync::Int64>,
186 _raw: RawWindow,
187 bounds: Bounds<Pixels>,
188 scale_factor: f32,
189 renderer: BladeRenderer,
190 display: Rc<dyn PlatformDisplay>,
191 input_handler: Option<PlatformInputHandler>,
192 appearance: WindowAppearance,
193 background_appearance: WindowBackgroundAppearance,
194 maximized_vertical: bool,
195 maximized_horizontal: bool,
196 hidden: bool,
197 active: bool,
198 fullscreen: bool,
199 decorations: WindowDecorations,
200 pub handle: AnyWindowHandle,
201 last_insets: [u32; 4],
202}
203
204impl X11WindowState {
205 fn is_transparent(&self) -> bool {
206 self.decorations == WindowDecorations::Client
207 || self.background_appearance != WindowBackgroundAppearance::Opaque
208 }
209}
210
211#[derive(Clone)]
212pub(crate) struct X11WindowStatePtr {
213 pub state: Rc<RefCell<X11WindowState>>,
214 pub(crate) callbacks: Rc<RefCell<Callbacks>>,
215 xcb_connection: Rc<XCBConnection>,
216 pub x_window: xproto::Window,
217}
218
219impl rwh::HasWindowHandle for RawWindow {
220 fn window_handle(&self) -> Result<rwh::WindowHandle, rwh::HandleError> {
221 let non_zero = NonZeroU32::new(self.window_id).unwrap();
222 let mut handle = rwh::XcbWindowHandle::new(non_zero);
223 handle.visual_id = NonZeroU32::new(self.visual_id);
224 Ok(unsafe { rwh::WindowHandle::borrow_raw(handle.into()) })
225 }
226}
227impl rwh::HasDisplayHandle for RawWindow {
228 fn display_handle(&self) -> Result<rwh::DisplayHandle, rwh::HandleError> {
229 let non_zero = NonNull::new(self.connection).unwrap();
230 let handle = rwh::XcbDisplayHandle::new(Some(non_zero), self.screen_id as i32);
231 Ok(unsafe { rwh::DisplayHandle::borrow_raw(handle.into()) })
232 }
233}
234
235impl rwh::HasWindowHandle for X11Window {
236 fn window_handle(&self) -> Result<rwh::WindowHandle, rwh::HandleError> {
237 unimplemented!()
238 }
239}
240impl rwh::HasDisplayHandle for X11Window {
241 fn display_handle(&self) -> Result<rwh::DisplayHandle, rwh::HandleError> {
242 unimplemented!()
243 }
244}
245
246impl X11WindowState {
247 #[allow(clippy::too_many_arguments)]
248 pub fn new(
249 handle: AnyWindowHandle,
250 client: X11ClientStatePtr,
251 executor: ForegroundExecutor,
252 params: WindowParams,
253 xcb_connection: &Rc<XCBConnection>,
254 x_main_screen_index: usize,
255 x_window: xproto::Window,
256 atoms: &XcbAtoms,
257 scale_factor: f32,
258 appearance: WindowAppearance,
259 ) -> anyhow::Result<Self> {
260 let x_screen_index = params
261 .display_id
262 .map_or(x_main_screen_index, |did| did.0 as usize);
263
264 let visual_set = find_visuals(&xcb_connection, x_screen_index);
265
266 let visual = match visual_set.transparent {
267 Some(visual) => visual,
268 None => {
269 log::warn!("Unable to find a transparent visual",);
270 visual_set.inherit
271 }
272 };
273 log::info!("Using {:?}", visual);
274
275 let colormap = if visual.colormap != 0 {
276 visual.colormap
277 } else {
278 let id = xcb_connection.generate_id().unwrap();
279 log::info!("Creating colormap {}", id);
280 xcb_connection
281 .create_colormap(xproto::ColormapAlloc::NONE, id, visual_set.root, visual.id)
282 .unwrap()
283 .check()?;
284 id
285 };
286
287 let win_aux = xproto::CreateWindowAux::new()
288 // https://stackoverflow.com/questions/43218127/x11-xlib-xcb-creating-a-window-requires-border-pixel-if-specifying-colormap-wh
289 .border_pixel(visual_set.black_pixel)
290 .colormap(colormap)
291 .event_mask(
292 xproto::EventMask::EXPOSURE
293 | xproto::EventMask::STRUCTURE_NOTIFY
294 | xproto::EventMask::FOCUS_CHANGE
295 | xproto::EventMask::KEY_PRESS
296 | xproto::EventMask::KEY_RELEASE
297 | EventMask::PROPERTY_CHANGE,
298 );
299
300 let mut bounds = params.bounds.to_device_pixels(scale_factor);
301 if bounds.size.width.0 == 0 || bounds.size.height.0 == 0 {
302 log::warn!("Window bounds contain a zero value. height={}, width={}. Falling back to defaults.", bounds.size.height.0, bounds.size.width.0);
303 bounds.size.width = 800.into();
304 bounds.size.height = 600.into();
305 }
306
307 xcb_connection
308 .create_window(
309 visual.depth,
310 x_window,
311 visual_set.root,
312 (bounds.origin.x.0 + 2) as i16,
313 bounds.origin.y.0 as i16,
314 bounds.size.width.0 as u16,
315 bounds.size.height.0 as u16,
316 0,
317 xproto::WindowClass::INPUT_OUTPUT,
318 visual.id,
319 &win_aux,
320 )
321 .unwrap()
322 .check().with_context(|| {
323 format!("CreateWindow request to X server failed. depth: {}, x_window: {}, visual_set.root: {}, bounds.origin.x.0: {}, bounds.origin.y.0: {}, bounds.size.width.0: {}, bounds.size.height.0: {}",
324 visual.depth, x_window, visual_set.root, bounds.origin.x.0 + 2, bounds.origin.y.0, bounds.size.width.0, bounds.size.height.0)
325 })?;
326
327 let reply = xcb_connection
328 .get_geometry(x_window)
329 .unwrap()
330 .reply()
331 .unwrap();
332 if reply.x == 0 && reply.y == 0 {
333 bounds.origin.x.0 += 2;
334 // Work around a bug where our rendered content appears
335 // outside the window bounds when opened at the default position
336 // (14px, 49px on X + Gnome + Ubuntu 22).
337 xcb_connection
338 .configure_window(
339 x_window,
340 &xproto::ConfigureWindowAux::new()
341 .x(bounds.origin.x.0)
342 .y(bounds.origin.y.0),
343 )
344 .unwrap();
345 }
346 if let Some(titlebar) = params.titlebar {
347 if let Some(title) = titlebar.title {
348 xcb_connection
349 .change_property8(
350 xproto::PropMode::REPLACE,
351 x_window,
352 xproto::AtomEnum::WM_NAME,
353 xproto::AtomEnum::STRING,
354 title.as_bytes(),
355 )
356 .unwrap();
357 }
358 }
359 if params.kind == WindowKind::PopUp {
360 xcb_connection
361 .change_property32(
362 xproto::PropMode::REPLACE,
363 x_window,
364 atoms._NET_WM_WINDOW_TYPE,
365 xproto::AtomEnum::ATOM,
366 &[atoms._NET_WM_WINDOW_TYPE_NOTIFICATION],
367 )
368 .unwrap();
369 }
370
371 xcb_connection
372 .change_property32(
373 xproto::PropMode::REPLACE,
374 x_window,
375 atoms.WM_PROTOCOLS,
376 xproto::AtomEnum::ATOM,
377 &[atoms.WM_DELETE_WINDOW, atoms._NET_WM_SYNC_REQUEST],
378 )
379 .unwrap();
380
381 sync::initialize(xcb_connection, 3, 1).unwrap();
382 let sync_request_counter = xcb_connection.generate_id().unwrap();
383 sync::create_counter(
384 xcb_connection,
385 sync_request_counter,
386 sync::Int64 { lo: 0, hi: 0 },
387 )
388 .unwrap();
389
390 xcb_connection
391 .change_property32(
392 xproto::PropMode::REPLACE,
393 x_window,
394 atoms._NET_WM_SYNC_REQUEST_COUNTER,
395 xproto::AtomEnum::CARDINAL,
396 &[sync_request_counter],
397 )
398 .unwrap();
399
400 xcb_connection
401 .xinput_xi_select_events(
402 x_window,
403 &[xinput::EventMask {
404 deviceid: XINPUT_MASTER_DEVICE,
405 mask: vec![
406 xinput::XIEventMask::MOTION
407 | xinput::XIEventMask::BUTTON_PRESS
408 | xinput::XIEventMask::BUTTON_RELEASE
409 | xinput::XIEventMask::LEAVE,
410 ],
411 }],
412 )
413 .unwrap();
414
415 xcb_connection.flush().unwrap();
416
417 let raw = RawWindow {
418 connection: as_raw_xcb_connection::AsRawXcbConnection::as_raw_xcb_connection(
419 xcb_connection,
420 ) as *mut _,
421 screen_id: x_screen_index,
422 window_id: x_window,
423 visual_id: visual.id,
424 };
425 let gpu = Arc::new(
426 unsafe {
427 gpu::Context::init_windowed(
428 &raw,
429 gpu::ContextDesc {
430 validation: false,
431 capture: false,
432 overlay: false,
433 },
434 )
435 }
436 .map_err(|e| anyhow::anyhow!("{:?}", e))?,
437 );
438
439 let config = BladeSurfaceConfig {
440 // Note: this has to be done after the GPU init, or otherwise
441 // the sizes are immediately invalidated.
442 size: query_render_extent(xcb_connection, x_window),
443 // In case we have window decorations to render
444 transparent: true,
445 };
446 xcb_connection.map_window(x_window).unwrap();
447
448 let screen_resources = xcb_connection
449 .randr_get_screen_resources(x_window)
450 .unwrap()
451 .reply()
452 .expect("Could not find available screens");
453
454 let mode = screen_resources
455 .crtcs
456 .iter()
457 .find_map(|crtc| {
458 let crtc_info = xcb_connection
459 .randr_get_crtc_info(*crtc, x11rb::CURRENT_TIME)
460 .ok()?
461 .reply()
462 .ok()?;
463
464 screen_resources
465 .modes
466 .iter()
467 .find(|m| m.id == crtc_info.mode)
468 })
469 .expect("Unable to find screen refresh rate");
470
471 let refresh_rate = mode_refresh_rate(&mode);
472
473 Ok(Self {
474 client,
475 executor,
476 display: Rc::new(
477 X11Display::new(xcb_connection, scale_factor, x_screen_index).unwrap(),
478 ),
479 _raw: raw,
480 x_root_window: visual_set.root,
481 bounds: bounds.to_pixels(scale_factor),
482 scale_factor,
483 renderer: BladeRenderer::new(gpu, config),
484 atoms: *atoms,
485 input_handler: None,
486 active: false,
487 fullscreen: false,
488 maximized_vertical: false,
489 maximized_horizontal: false,
490 hidden: false,
491 appearance,
492 handle,
493 background_appearance: WindowBackgroundAppearance::Opaque,
494 destroyed: false,
495 decorations: WindowDecorations::Server,
496 last_insets: [0, 0, 0, 0],
497 counter_id: sync_request_counter,
498 last_sync_counter: None,
499 refresh_rate,
500 })
501 }
502
503 fn content_size(&self) -> Size<Pixels> {
504 let size = self.renderer.viewport_size();
505 Size {
506 width: size.width.into(),
507 height: size.height.into(),
508 }
509 }
510}
511
512pub(crate) struct X11Window(pub X11WindowStatePtr);
513
514impl Drop for X11Window {
515 fn drop(&mut self) {
516 let mut state = self.0.state.borrow_mut();
517 state.renderer.destroy();
518
519 let destroy_x_window = maybe!({
520 self.0.xcb_connection.unmap_window(self.0.x_window)?;
521 self.0.xcb_connection.destroy_window(self.0.x_window)?;
522 self.0.xcb_connection.flush()?;
523
524 anyhow::Ok(())
525 })
526 .context("unmapping and destroying X11 window")
527 .log_err();
528
529 if destroy_x_window.is_some() {
530 // Mark window as destroyed so that we can filter out when X11 events
531 // for it still come in.
532 state.destroyed = true;
533
534 let this_ptr = self.0.clone();
535 let client_ptr = state.client.clone();
536 state
537 .executor
538 .spawn(async move {
539 this_ptr.close();
540 client_ptr.drop_window(this_ptr.x_window);
541 })
542 .detach();
543 }
544
545 drop(state);
546 }
547}
548
549enum WmHintPropertyState {
550 // Remove = 0,
551 // Add = 1,
552 Toggle = 2,
553}
554
555impl X11Window {
556 #[allow(clippy::too_many_arguments)]
557 pub fn new(
558 handle: AnyWindowHandle,
559 client: X11ClientStatePtr,
560 executor: ForegroundExecutor,
561 params: WindowParams,
562 xcb_connection: &Rc<XCBConnection>,
563 x_main_screen_index: usize,
564 x_window: xproto::Window,
565 atoms: &XcbAtoms,
566 scale_factor: f32,
567 appearance: WindowAppearance,
568 ) -> anyhow::Result<Self> {
569 let ptr = X11WindowStatePtr {
570 state: Rc::new(RefCell::new(X11WindowState::new(
571 handle,
572 client,
573 executor,
574 params,
575 xcb_connection,
576 x_main_screen_index,
577 x_window,
578 atoms,
579 scale_factor,
580 appearance,
581 )?)),
582 callbacks: Rc::new(RefCell::new(Callbacks::default())),
583 xcb_connection: xcb_connection.clone(),
584 x_window,
585 };
586
587 let state = ptr.state.borrow_mut();
588 ptr.set_wm_properties(state);
589
590 Ok(Self(ptr))
591 }
592
593 fn set_wm_hints(&self, wm_hint_property_state: WmHintPropertyState, prop1: u32, prop2: u32) {
594 let state = self.0.state.borrow();
595 let message = ClientMessageEvent::new(
596 32,
597 self.0.x_window,
598 state.atoms._NET_WM_STATE,
599 [wm_hint_property_state as u32, prop1, prop2, 1, 0],
600 );
601 self.0
602 .xcb_connection
603 .send_event(
604 false,
605 state.x_root_window,
606 EventMask::SUBSTRUCTURE_REDIRECT | EventMask::SUBSTRUCTURE_NOTIFY,
607 message,
608 )
609 .unwrap();
610 }
611
612 fn get_root_position(&self, position: Point<Pixels>) -> TranslateCoordinatesReply {
613 let state = self.0.state.borrow();
614 self.0
615 .xcb_connection
616 .translate_coordinates(
617 self.0.x_window,
618 state.x_root_window,
619 (position.x.0 * state.scale_factor) as i16,
620 (position.y.0 * state.scale_factor) as i16,
621 )
622 .unwrap()
623 .reply()
624 .unwrap()
625 }
626
627 fn send_moveresize(&self, flag: u32) {
628 let state = self.0.state.borrow();
629
630 self.0
631 .xcb_connection
632 .ungrab_pointer(x11rb::CURRENT_TIME)
633 .unwrap()
634 .check()
635 .unwrap();
636
637 let pointer = self
638 .0
639 .xcb_connection
640 .query_pointer(self.0.x_window)
641 .unwrap()
642 .reply()
643 .unwrap();
644 let message = ClientMessageEvent::new(
645 32,
646 self.0.x_window,
647 state.atoms._NET_WM_MOVERESIZE,
648 [
649 pointer.root_x as u32,
650 pointer.root_y as u32,
651 flag,
652 0, // Left mouse button
653 0,
654 ],
655 );
656 self.0
657 .xcb_connection
658 .send_event(
659 false,
660 state.x_root_window,
661 EventMask::SUBSTRUCTURE_REDIRECT | EventMask::SUBSTRUCTURE_NOTIFY,
662 message,
663 )
664 .unwrap();
665
666 self.0.xcb_connection.flush().unwrap();
667 }
668}
669
670impl X11WindowStatePtr {
671 pub fn should_close(&self) -> bool {
672 let mut cb = self.callbacks.borrow_mut();
673 if let Some(mut should_close) = cb.should_close.take() {
674 let result = (should_close)();
675 cb.should_close = Some(should_close);
676 result
677 } else {
678 true
679 }
680 }
681
682 pub fn property_notify(&self, event: xproto::PropertyNotifyEvent) {
683 let mut state = self.state.borrow_mut();
684 if event.atom == state.atoms._NET_WM_STATE {
685 self.set_wm_properties(state);
686 }
687 }
688
689 fn set_wm_properties(&self, mut state: std::cell::RefMut<X11WindowState>) {
690 let reply = self
691 .xcb_connection
692 .get_property(
693 false,
694 self.x_window,
695 state.atoms._NET_WM_STATE,
696 xproto::AtomEnum::ATOM,
697 0,
698 u32::MAX,
699 )
700 .unwrap()
701 .reply()
702 .unwrap();
703
704 let atoms = reply
705 .value
706 .chunks_exact(4)
707 .map(|chunk| u32::from_ne_bytes([chunk[0], chunk[1], chunk[2], chunk[3]]));
708
709 state.active = false;
710 state.fullscreen = false;
711 state.maximized_vertical = false;
712 state.maximized_horizontal = false;
713 state.hidden = true;
714
715 for atom in atoms {
716 if atom == state.atoms._NET_WM_STATE_FOCUSED {
717 state.active = true;
718 } else if atom == state.atoms._NET_WM_STATE_FULLSCREEN {
719 state.fullscreen = true;
720 } else if atom == state.atoms._NET_WM_STATE_MAXIMIZED_VERT {
721 state.maximized_vertical = true;
722 } else if atom == state.atoms._NET_WM_STATE_MAXIMIZED_HORZ {
723 state.maximized_horizontal = true;
724 } else if atom == state.atoms._NET_WM_STATE_HIDDEN {
725 state.hidden = true;
726 }
727 }
728 }
729
730 pub fn close(&self) {
731 let mut callbacks = self.callbacks.borrow_mut();
732 if let Some(fun) = callbacks.close.take() {
733 fun()
734 }
735 }
736
737 pub fn refresh(&self) {
738 let mut cb = self.callbacks.borrow_mut();
739 if let Some(ref mut fun) = cb.request_frame {
740 fun();
741 }
742 }
743
744 pub fn handle_input(&self, input: PlatformInput) {
745 if let Some(ref mut fun) = self.callbacks.borrow_mut().input {
746 if !fun(input.clone()).propagate {
747 return;
748 }
749 }
750 if let PlatformInput::KeyDown(event) = input {
751 let mut state = self.state.borrow_mut();
752 if let Some(mut input_handler) = state.input_handler.take() {
753 if let Some(ime_key) = &event.keystroke.ime_key {
754 drop(state);
755 input_handler.replace_text_in_range(None, ime_key);
756 state = self.state.borrow_mut();
757 }
758 state.input_handler = Some(input_handler);
759 }
760 }
761 }
762
763 pub fn handle_ime_commit(&self, text: String) {
764 let mut state = self.state.borrow_mut();
765 if let Some(mut input_handler) = state.input_handler.take() {
766 drop(state);
767 input_handler.replace_text_in_range(None, &text);
768 let mut state = self.state.borrow_mut();
769 state.input_handler = Some(input_handler);
770 }
771 }
772
773 pub fn handle_ime_preedit(&self, text: String) {
774 let mut state = self.state.borrow_mut();
775 if let Some(mut input_handler) = state.input_handler.take() {
776 drop(state);
777 input_handler.replace_and_mark_text_in_range(None, &text, None);
778 let mut state = self.state.borrow_mut();
779 state.input_handler = Some(input_handler);
780 }
781 }
782
783 pub fn handle_ime_unmark(&self) {
784 let mut state = self.state.borrow_mut();
785 if let Some(mut input_handler) = state.input_handler.take() {
786 drop(state);
787 input_handler.unmark_text();
788 let mut state = self.state.borrow_mut();
789 state.input_handler = Some(input_handler);
790 }
791 }
792
793 pub fn handle_ime_delete(&self) {
794 let mut state = self.state.borrow_mut();
795 if let Some(mut input_handler) = state.input_handler.take() {
796 drop(state);
797 if let Some(marked) = input_handler.marked_text_range() {
798 input_handler.replace_text_in_range(Some(marked), "");
799 }
800 let mut state = self.state.borrow_mut();
801 state.input_handler = Some(input_handler);
802 }
803 }
804
805 pub fn get_ime_area(&self) -> Option<Bounds<Pixels>> {
806 let mut state = self.state.borrow_mut();
807 let mut bounds: Option<Bounds<Pixels>> = None;
808 if let Some(mut input_handler) = state.input_handler.take() {
809 drop(state);
810 if let Some(range) = input_handler.selected_text_range() {
811 bounds = input_handler.bounds_for_range(range);
812 }
813 let mut state = self.state.borrow_mut();
814 state.input_handler = Some(input_handler);
815 };
816 bounds
817 }
818
819 pub fn configure(&self, bounds: Bounds<i32>) {
820 let mut resize_args = None;
821 let is_resize;
822 {
823 let mut state = self.state.borrow_mut();
824 let bounds = bounds.map(|f| px(f as f32 / state.scale_factor));
825
826 is_resize = bounds.size.width != state.bounds.size.width
827 || bounds.size.height != state.bounds.size.height;
828
829 // If it's a resize event (only width/height changed), we ignore `bounds.origin`
830 // because it contains wrong values.
831 if is_resize {
832 state.bounds.size = bounds.size;
833 } else {
834 state.bounds = bounds;
835 }
836
837 let gpu_size = query_render_extent(&self.xcb_connection, self.x_window);
838 if true {
839 state.renderer.update_drawable_size(size(
840 DevicePixels(gpu_size.width as i32),
841 DevicePixels(gpu_size.height as i32),
842 ));
843 resize_args = Some((state.content_size(), state.scale_factor));
844 }
845 if let Some(value) = state.last_sync_counter.take() {
846 sync::set_counter(&self.xcb_connection, state.counter_id, value).unwrap();
847 }
848 }
849
850 let mut callbacks = self.callbacks.borrow_mut();
851 if let Some((content_size, scale_factor)) = resize_args {
852 if let Some(ref mut fun) = callbacks.resize {
853 fun(content_size, scale_factor)
854 }
855 }
856 if !is_resize {
857 if let Some(ref mut fun) = callbacks.moved {
858 fun()
859 }
860 }
861 }
862
863 pub fn set_focused(&self, focus: bool) {
864 if let Some(ref mut fun) = self.callbacks.borrow_mut().active_status_change {
865 fun(focus);
866 }
867 }
868
869 pub fn set_appearance(&mut self, appearance: WindowAppearance) {
870 let mut state = self.state.borrow_mut();
871 state.appearance = appearance;
872 let is_transparent = state.is_transparent();
873 state.renderer.update_transparency(is_transparent);
874 state.appearance = appearance;
875 drop(state);
876 let mut callbacks = self.callbacks.borrow_mut();
877 if let Some(ref mut fun) = callbacks.appearance_changed {
878 (fun)()
879 }
880 }
881
882 pub fn refresh_rate(&self) -> Duration {
883 self.state.borrow().refresh_rate
884 }
885}
886
887impl PlatformWindow for X11Window {
888 fn bounds(&self) -> Bounds<Pixels> {
889 self.0.state.borrow().bounds
890 }
891
892 fn is_maximized(&self) -> bool {
893 let state = self.0.state.borrow();
894
895 // A maximized window that gets minimized will still retain its maximized state.
896 !state.hidden && state.maximized_vertical && state.maximized_horizontal
897 }
898
899 fn window_bounds(&self) -> WindowBounds {
900 let state = self.0.state.borrow();
901 if self.is_maximized() {
902 WindowBounds::Maximized(state.bounds)
903 } else {
904 WindowBounds::Windowed(state.bounds)
905 }
906 }
907
908 fn content_size(&self) -> Size<Pixels> {
909 // We divide by the scale factor here because this value is queried to determine how much to draw,
910 // but it will be multiplied later by the scale to adjust for scaling.
911 let state = self.0.state.borrow();
912 state
913 .content_size()
914 .map(|size| size.div(state.scale_factor))
915 }
916
917 fn scale_factor(&self) -> f32 {
918 self.0.state.borrow().scale_factor
919 }
920
921 fn appearance(&self) -> WindowAppearance {
922 self.0.state.borrow().appearance
923 }
924
925 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
926 Some(self.0.state.borrow().display.clone())
927 }
928
929 fn mouse_position(&self) -> Point<Pixels> {
930 let reply = self
931 .0
932 .xcb_connection
933 .query_pointer(self.0.x_window)
934 .unwrap()
935 .reply()
936 .unwrap();
937 Point::new((reply.root_x as u32).into(), (reply.root_y as u32).into())
938 }
939
940 fn modifiers(&self) -> Modifiers {
941 self.0
942 .state
943 .borrow()
944 .client
945 .0
946 .upgrade()
947 .map(|ref_cell| ref_cell.borrow().modifiers)
948 .unwrap_or_default()
949 }
950
951 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
952 self.0.state.borrow_mut().input_handler = Some(input_handler);
953 }
954
955 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
956 self.0.state.borrow_mut().input_handler.take()
957 }
958
959 fn prompt(
960 &self,
961 _level: PromptLevel,
962 _msg: &str,
963 _detail: Option<&str>,
964 _answers: &[&str],
965 ) -> Option<futures::channel::oneshot::Receiver<usize>> {
966 None
967 }
968
969 fn activate(&self) {
970 let data = [1, xproto::Time::CURRENT_TIME.into(), 0, 0, 0];
971 let message = xproto::ClientMessageEvent::new(
972 32,
973 self.0.x_window,
974 self.0.state.borrow().atoms._NET_ACTIVE_WINDOW,
975 data,
976 );
977 self.0
978 .xcb_connection
979 .send_event(
980 false,
981 self.0.state.borrow().x_root_window,
982 xproto::EventMask::SUBSTRUCTURE_REDIRECT | xproto::EventMask::SUBSTRUCTURE_NOTIFY,
983 message,
984 )
985 .log_err();
986 self.0
987 .xcb_connection
988 .set_input_focus(
989 xproto::InputFocus::POINTER_ROOT,
990 self.0.x_window,
991 xproto::Time::CURRENT_TIME,
992 )
993 .log_err();
994 }
995
996 fn is_active(&self) -> bool {
997 self.0.state.borrow().active
998 }
999
1000 fn set_title(&mut self, title: &str) {
1001 self.0
1002 .xcb_connection
1003 .change_property8(
1004 xproto::PropMode::REPLACE,
1005 self.0.x_window,
1006 xproto::AtomEnum::WM_NAME,
1007 xproto::AtomEnum::STRING,
1008 title.as_bytes(),
1009 )
1010 .unwrap();
1011
1012 self.0
1013 .xcb_connection
1014 .change_property8(
1015 xproto::PropMode::REPLACE,
1016 self.0.x_window,
1017 self.0.state.borrow().atoms._NET_WM_NAME,
1018 self.0.state.borrow().atoms.UTF8_STRING,
1019 title.as_bytes(),
1020 )
1021 .unwrap();
1022 }
1023
1024 fn set_app_id(&mut self, app_id: &str) {
1025 let mut data = Vec::with_capacity(app_id.len() * 2 + 1);
1026 data.extend(app_id.bytes()); // instance https://unix.stackexchange.com/a/494170
1027 data.push(b'\0');
1028 data.extend(app_id.bytes()); // class
1029
1030 self.0
1031 .xcb_connection
1032 .change_property8(
1033 xproto::PropMode::REPLACE,
1034 self.0.x_window,
1035 xproto::AtomEnum::WM_CLASS,
1036 xproto::AtomEnum::STRING,
1037 &data,
1038 )
1039 .unwrap();
1040 }
1041
1042 fn set_edited(&mut self, _edited: bool) {
1043 log::info!("ignoring macOS specific set_edited");
1044 }
1045
1046 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
1047 let mut state = self.0.state.borrow_mut();
1048 state.background_appearance = background_appearance;
1049 let transparent = state.is_transparent();
1050 state.renderer.update_transparency(transparent);
1051 }
1052
1053 fn show_character_palette(&self) {
1054 log::info!("ignoring macOS specific show_character_palette");
1055 }
1056
1057 fn minimize(&self) {
1058 let state = self.0.state.borrow();
1059 const WINDOW_ICONIC_STATE: u32 = 3;
1060 let message = ClientMessageEvent::new(
1061 32,
1062 self.0.x_window,
1063 state.atoms.WM_CHANGE_STATE,
1064 [WINDOW_ICONIC_STATE, 0, 0, 0, 0],
1065 );
1066 self.0
1067 .xcb_connection
1068 .send_event(
1069 false,
1070 state.x_root_window,
1071 EventMask::SUBSTRUCTURE_REDIRECT | EventMask::SUBSTRUCTURE_NOTIFY,
1072 message,
1073 )
1074 .unwrap();
1075 }
1076
1077 fn zoom(&self) {
1078 let state = self.0.state.borrow();
1079 self.set_wm_hints(
1080 WmHintPropertyState::Toggle,
1081 state.atoms._NET_WM_STATE_MAXIMIZED_VERT,
1082 state.atoms._NET_WM_STATE_MAXIMIZED_HORZ,
1083 );
1084 }
1085
1086 fn toggle_fullscreen(&self) {
1087 let state = self.0.state.borrow();
1088 self.set_wm_hints(
1089 WmHintPropertyState::Toggle,
1090 state.atoms._NET_WM_STATE_FULLSCREEN,
1091 xproto::AtomEnum::NONE.into(),
1092 );
1093 }
1094
1095 fn is_fullscreen(&self) -> bool {
1096 self.0.state.borrow().fullscreen
1097 }
1098
1099 fn on_request_frame(&self, callback: Box<dyn FnMut()>) {
1100 self.0.callbacks.borrow_mut().request_frame = Some(callback);
1101 }
1102
1103 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>) {
1104 self.0.callbacks.borrow_mut().input = Some(callback);
1105 }
1106
1107 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1108 self.0.callbacks.borrow_mut().active_status_change = Some(callback);
1109 }
1110
1111 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
1112 self.0.callbacks.borrow_mut().resize = Some(callback);
1113 }
1114
1115 fn on_moved(&self, callback: Box<dyn FnMut()>) {
1116 self.0.callbacks.borrow_mut().moved = Some(callback);
1117 }
1118
1119 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
1120 self.0.callbacks.borrow_mut().should_close = Some(callback);
1121 }
1122
1123 fn on_close(&self, callback: Box<dyn FnOnce()>) {
1124 self.0.callbacks.borrow_mut().close = Some(callback);
1125 }
1126
1127 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
1128 self.0.callbacks.borrow_mut().appearance_changed = Some(callback);
1129 }
1130
1131 fn draw(&self, scene: &Scene) {
1132 let mut inner = self.0.state.borrow_mut();
1133 inner.renderer.draw(scene);
1134 }
1135
1136 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
1137 let inner = self.0.state.borrow();
1138 inner.renderer.sprite_atlas().clone()
1139 }
1140
1141 fn show_window_menu(&self, position: Point<Pixels>) {
1142 let state = self.0.state.borrow();
1143 let coords = self.get_root_position(position);
1144 let message = ClientMessageEvent::new(
1145 32,
1146 self.0.x_window,
1147 state.atoms._GTK_SHOW_WINDOW_MENU,
1148 [
1149 XINPUT_MASTER_DEVICE as u32,
1150 coords.dst_x as u32,
1151 coords.dst_y as u32,
1152 0,
1153 0,
1154 ],
1155 );
1156 self.0
1157 .xcb_connection
1158 .send_event(
1159 false,
1160 state.x_root_window,
1161 EventMask::SUBSTRUCTURE_REDIRECT | EventMask::SUBSTRUCTURE_NOTIFY,
1162 message,
1163 )
1164 .unwrap();
1165 }
1166
1167 fn start_window_move(&self) {
1168 const MOVERESIZE_MOVE: u32 = 8;
1169 self.send_moveresize(MOVERESIZE_MOVE);
1170 }
1171
1172 fn start_window_resize(&self, edge: ResizeEdge) {
1173 self.send_moveresize(edge.to_moveresize());
1174 }
1175
1176 fn window_decorations(&self) -> crate::Decorations {
1177 let state = self.0.state.borrow();
1178
1179 match state.decorations {
1180 WindowDecorations::Server => Decorations::Server,
1181 WindowDecorations::Client => {
1182 // https://source.chromium.org/chromium/chromium/src/+/main:ui/ozone/platform/x11/x11_window.cc;l=2519;drc=1f14cc876cc5bf899d13284a12c451498219bb2d
1183 Decorations::Client {
1184 tiling: Tiling {
1185 top: state.maximized_vertical,
1186 bottom: state.maximized_vertical,
1187 left: state.maximized_horizontal,
1188 right: state.maximized_horizontal,
1189 },
1190 }
1191 }
1192 }
1193 }
1194
1195 fn set_client_inset(&self, inset: Pixels) {
1196 let mut state = self.0.state.borrow_mut();
1197
1198 let dp = (inset.0 * state.scale_factor) as u32;
1199
1200 let (left, right) = if state.maximized_horizontal {
1201 (0, 0)
1202 } else {
1203 (dp, dp)
1204 };
1205 let (top, bottom) = if state.maximized_vertical {
1206 (0, 0)
1207 } else {
1208 (dp, dp)
1209 };
1210 let insets = [left, right, top, bottom];
1211
1212 if state.last_insets != insets {
1213 state.last_insets = insets;
1214
1215 self.0
1216 .xcb_connection
1217 .change_property(
1218 xproto::PropMode::REPLACE,
1219 self.0.x_window,
1220 state.atoms._GTK_FRAME_EXTENTS,
1221 xproto::AtomEnum::CARDINAL,
1222 size_of::<u32>() as u8 * 8,
1223 4,
1224 bytemuck::cast_slice::<u32, u8>(&insets),
1225 )
1226 .unwrap();
1227 }
1228 }
1229
1230 fn request_decorations(&self, decorations: crate::WindowDecorations) {
1231 // https://github.com/rust-windowing/winit/blob/master/src/platform_impl/linux/x11/util/hint.rs#L53-L87
1232 let hints_data: [u32; 5] = match decorations {
1233 WindowDecorations::Server => [1 << 1, 0, 1, 0, 0],
1234 WindowDecorations::Client => [1 << 1, 0, 0, 0, 0],
1235 };
1236
1237 let mut state = self.0.state.borrow_mut();
1238
1239 self.0
1240 .xcb_connection
1241 .change_property(
1242 xproto::PropMode::REPLACE,
1243 self.0.x_window,
1244 state.atoms._MOTIF_WM_HINTS,
1245 state.atoms._MOTIF_WM_HINTS,
1246 std::mem::size_of::<u32>() as u8 * 8,
1247 5,
1248 bytemuck::cast_slice::<u32, u8>(&hints_data),
1249 )
1250 .unwrap();
1251
1252 match decorations {
1253 WindowDecorations::Server => {
1254 state.decorations = WindowDecorations::Server;
1255 let is_transparent = state.is_transparent();
1256 state.renderer.update_transparency(is_transparent);
1257 }
1258 WindowDecorations::Client => {
1259 state.decorations = WindowDecorations::Client;
1260 let is_transparent = state.is_transparent();
1261 state.renderer.update_transparency(is_transparent);
1262 }
1263 }
1264
1265 drop(state);
1266 let mut callbacks = self.0.callbacks.borrow_mut();
1267 if let Some(appearance_changed) = callbacks.appearance_changed.as_mut() {
1268 appearance_changed();
1269 }
1270 }
1271}
1272
1273// Adapted from:
1274// https://docs.rs/winit/0.29.11/src/winit/platform_impl/linux/x11/monitor.rs.html#103-111
1275pub fn mode_refresh_rate(mode: &randr::ModeInfo) -> Duration {
1276 if mode.dot_clock == 0 || mode.htotal == 0 || mode.vtotal == 0 {
1277 return Duration::from_millis(16);
1278 }
1279
1280 let millihertz = mode.dot_clock as u64 * 1_000 / (mode.htotal as u64 * mode.vtotal as u64);
1281 let micros = 1_000_000_000 / millihertz;
1282 log::info!("Refreshing at {} micros", micros);
1283 Duration::from_micros(micros)
1284}