1#![deny(unsafe_op_in_unsafe_fn)]
2
3use std::{
4 cell::RefCell,
5 num::NonZeroIsize,
6 path::PathBuf,
7 rc::{Rc, Weak},
8 str::FromStr,
9 sync::{Arc, Once},
10 time::{Duration, Instant},
11};
12
13use ::util::ResultExt;
14use anyhow::{Context as _, Result};
15use async_task::Runnable;
16use futures::channel::oneshot::{self, Receiver};
17use raw_window_handle as rwh;
18use smallvec::SmallVec;
19use windows::{
20 Win32::{
21 Foundation::*,
22 Graphics::Gdi::*,
23 System::{Com::*, LibraryLoader::*, Ole::*, SystemServices::*},
24 UI::{Controls::*, HiDpi::*, Input::KeyboardAndMouse::*, Shell::*, WindowsAndMessaging::*},
25 },
26 core::*,
27};
28
29use crate::*;
30
31pub(crate) struct WindowsWindow(pub Rc<WindowsWindowInner>);
32
33pub struct WindowsWindowState {
34 pub origin: Point<Pixels>,
35 pub logical_size: Size<Pixels>,
36 pub min_size: Option<Size<Pixels>>,
37 pub fullscreen_restore_bounds: Bounds<Pixels>,
38 pub border_offset: WindowBorderOffset,
39 pub appearance: WindowAppearance,
40 pub scale_factor: f32,
41 pub restore_from_minimized: Option<Box<dyn FnMut(RequestFrameOptions)>>,
42
43 pub callbacks: Callbacks,
44 pub input_handler: Option<PlatformInputHandler>,
45 pub pending_surrogate: Option<u16>,
46 pub last_reported_modifiers: Option<Modifiers>,
47 pub last_reported_capslock: Option<Capslock>,
48 pub system_key_handled: bool,
49 pub hovered: bool,
50
51 pub renderer: DirectXRenderer,
52
53 pub click_state: ClickState,
54 pub current_cursor: Option<HCURSOR>,
55 pub nc_button_pressed: Option<u32>,
56
57 pub display: WindowsDisplay,
58 fullscreen: Option<StyleAndBounds>,
59 initial_placement: Option<WindowOpenStatus>,
60 hwnd: HWND,
61}
62
63pub(crate) struct WindowsWindowInner {
64 hwnd: HWND,
65 pub(super) this: Weak<Self>,
66 drop_target_helper: IDropTargetHelper,
67 pub(crate) state: RefCell<WindowsWindowState>,
68 pub(crate) system_settings: RefCell<WindowsSystemSettings>,
69 pub(crate) handle: AnyWindowHandle,
70 pub(crate) hide_title_bar: bool,
71 pub(crate) is_movable: bool,
72 pub(crate) executor: ForegroundExecutor,
73 pub(crate) windows_version: WindowsVersion,
74 pub(crate) validation_number: usize,
75 pub(crate) main_receiver: flume::Receiver<Runnable>,
76 pub(crate) platform_window_handle: HWND,
77}
78
79impl WindowsWindowState {
80 fn new(
81 hwnd: HWND,
82 directx_devices: &DirectXDevices,
83 window_params: &CREATESTRUCTW,
84 current_cursor: Option<HCURSOR>,
85 display: WindowsDisplay,
86 min_size: Option<Size<Pixels>>,
87 appearance: WindowAppearance,
88 disable_direct_composition: bool,
89 ) -> Result<Self> {
90 let scale_factor = {
91 let monitor_dpi = unsafe { GetDpiForWindow(hwnd) } as f32;
92 monitor_dpi / USER_DEFAULT_SCREEN_DPI as f32
93 };
94 let origin = logical_point(window_params.x as f32, window_params.y as f32, scale_factor);
95 let logical_size = {
96 let physical_size = size(
97 DevicePixels(window_params.cx),
98 DevicePixels(window_params.cy),
99 );
100 physical_size.to_pixels(scale_factor)
101 };
102 let fullscreen_restore_bounds = Bounds {
103 origin,
104 size: logical_size,
105 };
106 let border_offset = WindowBorderOffset::default();
107 let restore_from_minimized = None;
108 let renderer = DirectXRenderer::new(hwnd, directx_devices, disable_direct_composition)
109 .context("Creating DirectX renderer")?;
110 let callbacks = Callbacks::default();
111 let input_handler = None;
112 let pending_surrogate = None;
113 let last_reported_modifiers = None;
114 let last_reported_capslock = None;
115 let system_key_handled = false;
116 let hovered = false;
117 let click_state = ClickState::new();
118 let nc_button_pressed = None;
119 let fullscreen = None;
120 let initial_placement = None;
121
122 Ok(Self {
123 origin,
124 logical_size,
125 fullscreen_restore_bounds,
126 border_offset,
127 appearance,
128 scale_factor,
129 restore_from_minimized,
130 min_size,
131 callbacks,
132 input_handler,
133 pending_surrogate,
134 last_reported_modifiers,
135 last_reported_capslock,
136 system_key_handled,
137 hovered,
138 renderer,
139 click_state,
140 current_cursor,
141 nc_button_pressed,
142 display,
143 fullscreen,
144 initial_placement,
145 hwnd,
146 })
147 }
148
149 #[inline]
150 pub(crate) fn is_fullscreen(&self) -> bool {
151 self.fullscreen.is_some()
152 }
153
154 pub(crate) fn is_maximized(&self) -> bool {
155 !self.is_fullscreen() && unsafe { IsZoomed(self.hwnd) }.as_bool()
156 }
157
158 fn bounds(&self) -> Bounds<Pixels> {
159 Bounds {
160 origin: self.origin,
161 size: self.logical_size,
162 }
163 }
164
165 // Calculate the bounds used for saving and whether the window is maximized.
166 fn calculate_window_bounds(&self) -> (Bounds<Pixels>, bool) {
167 let placement = unsafe {
168 let mut placement = WINDOWPLACEMENT {
169 length: std::mem::size_of::<WINDOWPLACEMENT>() as u32,
170 ..Default::default()
171 };
172 GetWindowPlacement(self.hwnd, &mut placement).log_err();
173 placement
174 };
175 (
176 calculate_client_rect(
177 placement.rcNormalPosition,
178 self.border_offset,
179 self.scale_factor,
180 ),
181 placement.showCmd == SW_SHOWMAXIMIZED.0 as u32,
182 )
183 }
184
185 fn window_bounds(&self) -> WindowBounds {
186 let (bounds, maximized) = self.calculate_window_bounds();
187
188 if self.is_fullscreen() {
189 WindowBounds::Fullscreen(self.fullscreen_restore_bounds)
190 } else if maximized {
191 WindowBounds::Maximized(bounds)
192 } else {
193 WindowBounds::Windowed(bounds)
194 }
195 }
196
197 /// get the logical size of the app's drawable area.
198 ///
199 /// Currently, GPUI uses the logical size of the app to handle mouse interactions (such as
200 /// whether the mouse collides with other elements of GPUI).
201 fn content_size(&self) -> Size<Pixels> {
202 self.logical_size
203 }
204}
205
206impl WindowsWindowInner {
207 fn new(context: &mut WindowCreateContext, hwnd: HWND, cs: &CREATESTRUCTW) -> Result<Rc<Self>> {
208 let state = RefCell::new(WindowsWindowState::new(
209 hwnd,
210 &context.directx_devices,
211 cs,
212 context.current_cursor,
213 context.display,
214 context.min_size,
215 context.appearance,
216 context.disable_direct_composition,
217 )?);
218
219 Ok(Rc::new_cyclic(|this| Self {
220 hwnd,
221 this: this.clone(),
222 drop_target_helper: context.drop_target_helper.clone(),
223 state,
224 handle: context.handle,
225 hide_title_bar: context.hide_title_bar,
226 is_movable: context.is_movable,
227 executor: context.executor.clone(),
228 windows_version: context.windows_version,
229 validation_number: context.validation_number,
230 main_receiver: context.main_receiver.clone(),
231 platform_window_handle: context.platform_window_handle,
232 system_settings: RefCell::new(WindowsSystemSettings::new(context.display)),
233 }))
234 }
235
236 fn toggle_fullscreen(&self) {
237 let Some(this) = self.this.upgrade() else {
238 log::error!("Unable to toggle fullscreen: window has been dropped");
239 return;
240 };
241 self.executor
242 .spawn(async move {
243 let mut lock = this.state.borrow_mut();
244 let StyleAndBounds {
245 style,
246 x,
247 y,
248 cx,
249 cy,
250 } = if let Some(state) = lock.fullscreen.take() {
251 state
252 } else {
253 let (window_bounds, _) = lock.calculate_window_bounds();
254 lock.fullscreen_restore_bounds = window_bounds;
255 let style = WINDOW_STYLE(unsafe { get_window_long(this.hwnd, GWL_STYLE) } as _);
256 let mut rc = RECT::default();
257 unsafe { GetWindowRect(this.hwnd, &mut rc) }.log_err();
258 let _ = lock.fullscreen.insert(StyleAndBounds {
259 style,
260 x: rc.left,
261 y: rc.top,
262 cx: rc.right - rc.left,
263 cy: rc.bottom - rc.top,
264 });
265 let style = style
266 & !(WS_THICKFRAME
267 | WS_SYSMENU
268 | WS_MAXIMIZEBOX
269 | WS_MINIMIZEBOX
270 | WS_CAPTION);
271 let physical_bounds = lock.display.physical_bounds();
272 StyleAndBounds {
273 style,
274 x: physical_bounds.left().0,
275 y: physical_bounds.top().0,
276 cx: physical_bounds.size.width.0,
277 cy: physical_bounds.size.height.0,
278 }
279 };
280 drop(lock);
281 unsafe { set_window_long(this.hwnd, GWL_STYLE, style.0 as isize) };
282 unsafe {
283 SetWindowPos(
284 this.hwnd,
285 None,
286 x,
287 y,
288 cx,
289 cy,
290 SWP_FRAMECHANGED | SWP_NOACTIVATE | SWP_NOZORDER,
291 )
292 }
293 .log_err();
294 })
295 .detach();
296 }
297
298 fn set_window_placement(&self) -> Result<()> {
299 let Some(open_status) = self.state.borrow_mut().initial_placement.take() else {
300 return Ok(());
301 };
302 match open_status.state {
303 WindowOpenState::Maximized => unsafe {
304 SetWindowPlacement(self.hwnd, &open_status.placement)?;
305 ShowWindowAsync(self.hwnd, SW_MAXIMIZE).ok()?;
306 },
307 WindowOpenState::Fullscreen => {
308 unsafe { SetWindowPlacement(self.hwnd, &open_status.placement)? };
309 self.toggle_fullscreen();
310 }
311 WindowOpenState::Windowed => unsafe {
312 SetWindowPlacement(self.hwnd, &open_status.placement)?;
313 },
314 }
315 Ok(())
316 }
317}
318
319#[derive(Default)]
320pub(crate) struct Callbacks {
321 pub(crate) request_frame: Option<Box<dyn FnMut(RequestFrameOptions)>>,
322 pub(crate) input: Option<Box<dyn FnMut(crate::PlatformInput) -> DispatchEventResult>>,
323 pub(crate) active_status_change: Option<Box<dyn FnMut(bool)>>,
324 pub(crate) hovered_status_change: Option<Box<dyn FnMut(bool)>>,
325 pub(crate) resize: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
326 pub(crate) moved: Option<Box<dyn FnMut()>>,
327 pub(crate) should_close: Option<Box<dyn FnMut() -> bool>>,
328 pub(crate) close: Option<Box<dyn FnOnce()>>,
329 pub(crate) hit_test_window_control: Option<Box<dyn FnMut() -> Option<WindowControlArea>>>,
330 pub(crate) appearance_changed: Option<Box<dyn FnMut()>>,
331}
332
333struct WindowCreateContext {
334 inner: Option<Result<Rc<WindowsWindowInner>>>,
335 handle: AnyWindowHandle,
336 hide_title_bar: bool,
337 display: WindowsDisplay,
338 is_movable: bool,
339 min_size: Option<Size<Pixels>>,
340 executor: ForegroundExecutor,
341 current_cursor: Option<HCURSOR>,
342 windows_version: WindowsVersion,
343 drop_target_helper: IDropTargetHelper,
344 validation_number: usize,
345 main_receiver: flume::Receiver<Runnable>,
346 platform_window_handle: HWND,
347 appearance: WindowAppearance,
348 disable_direct_composition: bool,
349 directx_devices: DirectXDevices,
350}
351
352impl WindowsWindow {
353 pub(crate) fn new(
354 handle: AnyWindowHandle,
355 params: WindowParams,
356 creation_info: WindowCreationInfo,
357 ) -> Result<Self> {
358 let WindowCreationInfo {
359 icon,
360 executor,
361 current_cursor,
362 windows_version,
363 drop_target_helper,
364 validation_number,
365 main_receiver,
366 platform_window_handle,
367 disable_direct_composition,
368 directx_devices,
369 } = creation_info;
370 register_window_class(icon);
371 let hide_title_bar = params
372 .titlebar
373 .as_ref()
374 .map(|titlebar| titlebar.appears_transparent)
375 .unwrap_or(true);
376 let window_name = HSTRING::from(
377 params
378 .titlebar
379 .as_ref()
380 .and_then(|titlebar| titlebar.title.as_ref())
381 .map(|title| title.as_ref())
382 .unwrap_or(""),
383 );
384
385 let (mut dwexstyle, dwstyle) = if params.kind == WindowKind::PopUp {
386 (WS_EX_TOOLWINDOW, WINDOW_STYLE(0x0))
387 } else {
388 let mut dwstyle = WS_SYSMENU;
389
390 if params.is_resizable {
391 dwstyle |= WS_THICKFRAME | WS_MAXIMIZEBOX;
392 }
393
394 if params.is_minimizable {
395 dwstyle |= WS_MINIMIZEBOX;
396 }
397
398 (WS_EX_APPWINDOW, dwstyle)
399 };
400 if !disable_direct_composition {
401 dwexstyle |= WS_EX_NOREDIRECTIONBITMAP;
402 }
403
404 let hinstance = get_module_handle();
405 let display = if let Some(display_id) = params.display_id {
406 // if we obtain a display_id, then this ID must be valid.
407 WindowsDisplay::new(display_id).unwrap()
408 } else {
409 WindowsDisplay::primary_monitor().unwrap()
410 };
411 let appearance = system_appearance().unwrap_or_default();
412 let mut context = WindowCreateContext {
413 inner: None,
414 handle,
415 hide_title_bar,
416 display,
417 is_movable: params.is_movable,
418 min_size: params.window_min_size,
419 executor,
420 current_cursor,
421 windows_version,
422 drop_target_helper,
423 validation_number,
424 main_receiver,
425 platform_window_handle,
426 appearance,
427 disable_direct_composition,
428 directx_devices,
429 };
430 let creation_result = unsafe {
431 CreateWindowExW(
432 dwexstyle,
433 WINDOW_CLASS_NAME,
434 &window_name,
435 dwstyle,
436 CW_USEDEFAULT,
437 CW_USEDEFAULT,
438 CW_USEDEFAULT,
439 CW_USEDEFAULT,
440 None,
441 None,
442 Some(hinstance.into()),
443 Some(&context as *const _ as *const _),
444 )
445 };
446
447 // Failure to create a `WindowsWindowState` can cause window creation to fail,
448 // so check the inner result first.
449 let this = context.inner.take().unwrap()?;
450 let hwnd = creation_result?;
451
452 register_drag_drop(&this)?;
453 configure_dwm_dark_mode(hwnd, appearance);
454 this.state.borrow_mut().border_offset.update(hwnd)?;
455 let placement = retrieve_window_placement(
456 hwnd,
457 display,
458 params.bounds,
459 this.state.borrow().scale_factor,
460 this.state.borrow().border_offset,
461 )?;
462 if params.show {
463 unsafe { SetWindowPlacement(hwnd, &placement)? };
464 } else {
465 this.state.borrow_mut().initial_placement = Some(WindowOpenStatus {
466 placement,
467 state: WindowOpenState::Windowed,
468 });
469 }
470
471 Ok(Self(this))
472 }
473}
474
475impl rwh::HasWindowHandle for WindowsWindow {
476 fn window_handle(&self) -> std::result::Result<rwh::WindowHandle<'_>, rwh::HandleError> {
477 let raw = rwh::Win32WindowHandle::new(unsafe {
478 NonZeroIsize::new_unchecked(self.0.hwnd.0 as isize)
479 })
480 .into();
481 Ok(unsafe { rwh::WindowHandle::borrow_raw(raw) })
482 }
483}
484
485// todo(windows)
486impl rwh::HasDisplayHandle for WindowsWindow {
487 fn display_handle(&self) -> std::result::Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
488 unimplemented!()
489 }
490}
491
492impl Drop for WindowsWindow {
493 fn drop(&mut self) {
494 // clone this `Rc` to prevent early release of the pointer
495 let this = self.0.clone();
496 self.0
497 .executor
498 .spawn(async move {
499 let handle = this.hwnd;
500 unsafe {
501 RevokeDragDrop(handle).log_err();
502 DestroyWindow(handle).log_err();
503 }
504 })
505 .detach();
506 }
507}
508
509impl PlatformWindow for WindowsWindow {
510 fn bounds(&self) -> Bounds<Pixels> {
511 self.0.state.borrow().bounds()
512 }
513
514 fn is_maximized(&self) -> bool {
515 self.0.state.borrow().is_maximized()
516 }
517
518 fn window_bounds(&self) -> WindowBounds {
519 self.0.state.borrow().window_bounds()
520 }
521
522 /// get the logical size of the app's drawable area.
523 ///
524 /// Currently, GPUI uses the logical size of the app to handle mouse interactions (such as
525 /// whether the mouse collides with other elements of GPUI).
526 fn content_size(&self) -> Size<Pixels> {
527 self.0.state.borrow().content_size()
528 }
529
530 fn resize(&mut self, size: Size<Pixels>) {
531 let hwnd = self.0.hwnd;
532 let bounds =
533 crate::bounds(self.bounds().origin, size).to_device_pixels(self.scale_factor());
534 let rect = calculate_window_rect(bounds, self.0.state.borrow().border_offset);
535
536 self.0
537 .executor
538 .spawn(async move {
539 unsafe {
540 SetWindowPos(
541 hwnd,
542 None,
543 bounds.origin.x.0,
544 bounds.origin.y.0,
545 rect.right - rect.left,
546 rect.bottom - rect.top,
547 SWP_NOMOVE,
548 )
549 .context("unable to set window content size")
550 .log_err();
551 }
552 })
553 .detach();
554 }
555
556 fn scale_factor(&self) -> f32 {
557 self.0.state.borrow().scale_factor
558 }
559
560 fn appearance(&self) -> WindowAppearance {
561 self.0.state.borrow().appearance
562 }
563
564 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
565 Some(Rc::new(self.0.state.borrow().display))
566 }
567
568 fn mouse_position(&self) -> Point<Pixels> {
569 let scale_factor = self.scale_factor();
570 let point = unsafe {
571 let mut point: POINT = std::mem::zeroed();
572 GetCursorPos(&mut point)
573 .context("unable to get cursor position")
574 .log_err();
575 ScreenToClient(self.0.hwnd, &mut point).ok().log_err();
576 point
577 };
578 logical_point(point.x as f32, point.y as f32, scale_factor)
579 }
580
581 fn modifiers(&self) -> Modifiers {
582 current_modifiers()
583 }
584
585 fn capslock(&self) -> Capslock {
586 current_capslock()
587 }
588
589 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
590 self.0.state.borrow_mut().input_handler = Some(input_handler);
591 }
592
593 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
594 self.0.state.borrow_mut().input_handler.take()
595 }
596
597 fn prompt(
598 &self,
599 level: PromptLevel,
600 msg: &str,
601 detail: Option<&str>,
602 answers: &[PromptButton],
603 ) -> Option<Receiver<usize>> {
604 let (done_tx, done_rx) = oneshot::channel();
605 let msg = msg.to_string();
606 let detail_string = detail.map(|detail| detail.to_string());
607 let handle = self.0.hwnd;
608 let answers = answers.to_vec();
609 self.0
610 .executor
611 .spawn(async move {
612 unsafe {
613 let mut config = TASKDIALOGCONFIG::default();
614 config.cbSize = std::mem::size_of::<TASKDIALOGCONFIG>() as _;
615 config.hwndParent = handle;
616 let title;
617 let main_icon;
618 match level {
619 crate::PromptLevel::Info => {
620 title = windows::core::w!("Info");
621 main_icon = TD_INFORMATION_ICON;
622 }
623 crate::PromptLevel::Warning => {
624 title = windows::core::w!("Warning");
625 main_icon = TD_WARNING_ICON;
626 }
627 crate::PromptLevel::Critical => {
628 title = windows::core::w!("Critical");
629 main_icon = TD_ERROR_ICON;
630 }
631 };
632 config.pszWindowTitle = title;
633 config.Anonymous1.pszMainIcon = main_icon;
634 let instruction = HSTRING::from(msg);
635 config.pszMainInstruction = PCWSTR::from_raw(instruction.as_ptr());
636 let hints_encoded;
637 if let Some(ref hints) = detail_string {
638 hints_encoded = HSTRING::from(hints);
639 config.pszContent = PCWSTR::from_raw(hints_encoded.as_ptr());
640 };
641 let mut button_id_map = Vec::with_capacity(answers.len());
642 let mut buttons = Vec::new();
643 let mut btn_encoded = Vec::new();
644 for (index, btn) in answers.iter().enumerate() {
645 let encoded = HSTRING::from(btn.label().as_ref());
646 let button_id = if btn.is_cancel() {
647 IDCANCEL.0
648 } else {
649 index as i32 - 100
650 };
651 button_id_map.push(button_id);
652 buttons.push(TASKDIALOG_BUTTON {
653 nButtonID: button_id,
654 pszButtonText: PCWSTR::from_raw(encoded.as_ptr()),
655 });
656 btn_encoded.push(encoded);
657 }
658 config.cButtons = buttons.len() as _;
659 config.pButtons = buttons.as_ptr();
660
661 config.pfCallback = None;
662 let mut res = std::mem::zeroed();
663 let _ = TaskDialogIndirect(&config, Some(&mut res), None, None)
664 .context("unable to create task dialog")
665 .log_err();
666
667 let clicked = button_id_map
668 .iter()
669 .position(|&button_id| button_id == res)
670 .unwrap();
671 let _ = done_tx.send(clicked);
672 }
673 })
674 .detach();
675
676 Some(done_rx)
677 }
678
679 fn activate(&self) {
680 let hwnd = self.0.hwnd;
681 let this = self.0.clone();
682 self.0
683 .executor
684 .spawn(async move {
685 this.set_window_placement().log_err();
686
687 unsafe {
688 // If the window is minimized, restore it.
689 if IsIconic(hwnd).as_bool() {
690 ShowWindowAsync(hwnd, SW_RESTORE).ok().log_err();
691 }
692
693 SetActiveWindow(hwnd).log_err();
694 SetFocus(Some(hwnd)).log_err();
695 }
696
697 // premium ragebait by windows, this is needed because the window
698 // must have received an input event to be able to set itself to foreground
699 // so let's just simulate user input as that seems to be the most reliable way
700 // some more info: https://gist.github.com/Aetopia/1581b40f00cc0cadc93a0e8ccb65dc8c
701 // bonus: this bug also doesn't manifest if you have vs attached to the process
702 let inputs = [
703 INPUT {
704 r#type: INPUT_KEYBOARD,
705 Anonymous: INPUT_0 {
706 ki: KEYBDINPUT {
707 wVk: VK_MENU,
708 dwFlags: KEYBD_EVENT_FLAGS(0),
709 ..Default::default()
710 },
711 },
712 },
713 INPUT {
714 r#type: INPUT_KEYBOARD,
715 Anonymous: INPUT_0 {
716 ki: KEYBDINPUT {
717 wVk: VK_MENU,
718 dwFlags: KEYEVENTF_KEYUP,
719 ..Default::default()
720 },
721 },
722 },
723 ];
724 unsafe { SendInput(&inputs, std::mem::size_of::<INPUT>() as i32) };
725
726 // todo(windows)
727 // crate `windows 0.56` reports true as Err
728 unsafe { SetForegroundWindow(hwnd).as_bool() };
729 })
730 .detach();
731 }
732
733 fn is_active(&self) -> bool {
734 self.0.hwnd == unsafe { GetActiveWindow() }
735 }
736
737 fn is_hovered(&self) -> bool {
738 self.0.state.borrow().hovered
739 }
740
741 fn set_title(&mut self, title: &str) {
742 unsafe { SetWindowTextW(self.0.hwnd, &HSTRING::from(title)) }
743 .inspect_err(|e| log::error!("Set title failed: {e}"))
744 .ok();
745 }
746
747 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
748 let hwnd = self.0.hwnd;
749
750 match background_appearance {
751 WindowBackgroundAppearance::Opaque => {
752 // ACCENT_DISABLED
753 set_window_composition_attribute(hwnd, None, 0);
754 }
755 WindowBackgroundAppearance::Transparent => {
756 // Use ACCENT_ENABLE_TRANSPARENTGRADIENT for transparent background
757 set_window_composition_attribute(hwnd, None, 2);
758 }
759 WindowBackgroundAppearance::Blurred => {
760 // Enable acrylic blur
761 // ACCENT_ENABLE_ACRYLICBLURBEHIND
762 set_window_composition_attribute(hwnd, Some((0, 0, 0, 0)), 4);
763 }
764 }
765 }
766
767 fn minimize(&self) {
768 unsafe { ShowWindowAsync(self.0.hwnd, SW_MINIMIZE).ok().log_err() };
769 }
770
771 fn zoom(&self) {
772 unsafe {
773 if IsWindowVisible(self.0.hwnd).as_bool() {
774 ShowWindowAsync(self.0.hwnd, SW_MAXIMIZE).ok().log_err();
775 } else if let Some(status) = self.0.state.borrow_mut().initial_placement.as_mut() {
776 status.state = WindowOpenState::Maximized;
777 }
778 }
779 }
780
781 fn toggle_fullscreen(&self) {
782 if unsafe { IsWindowVisible(self.0.hwnd).as_bool() } {
783 self.0.toggle_fullscreen();
784 } else if let Some(status) = self.0.state.borrow_mut().initial_placement.as_mut() {
785 status.state = WindowOpenState::Fullscreen;
786 }
787 }
788
789 fn is_fullscreen(&self) -> bool {
790 self.0.state.borrow().is_fullscreen()
791 }
792
793 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
794 self.0.state.borrow_mut().callbacks.request_frame = Some(callback);
795 }
796
797 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> DispatchEventResult>) {
798 self.0.state.borrow_mut().callbacks.input = Some(callback);
799 }
800
801 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
802 self.0.state.borrow_mut().callbacks.active_status_change = Some(callback);
803 }
804
805 fn on_hover_status_change(&self, callback: Box<dyn FnMut(bool)>) {
806 self.0.state.borrow_mut().callbacks.hovered_status_change = Some(callback);
807 }
808
809 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
810 self.0.state.borrow_mut().callbacks.resize = Some(callback);
811 }
812
813 fn on_moved(&self, callback: Box<dyn FnMut()>) {
814 self.0.state.borrow_mut().callbacks.moved = Some(callback);
815 }
816
817 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
818 self.0.state.borrow_mut().callbacks.should_close = Some(callback);
819 }
820
821 fn on_close(&self, callback: Box<dyn FnOnce()>) {
822 self.0.state.borrow_mut().callbacks.close = Some(callback);
823 }
824
825 fn on_hit_test_window_control(&self, callback: Box<dyn FnMut() -> Option<WindowControlArea>>) {
826 self.0.state.borrow_mut().callbacks.hit_test_window_control = Some(callback);
827 }
828
829 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
830 self.0.state.borrow_mut().callbacks.appearance_changed = Some(callback);
831 }
832
833 fn draw(&self, scene: &Scene) {
834 self.0.state.borrow_mut().renderer.draw(scene).log_err();
835 }
836
837 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
838 self.0.state.borrow().renderer.sprite_atlas()
839 }
840
841 fn get_raw_handle(&self) -> HWND {
842 self.0.hwnd
843 }
844
845 fn gpu_specs(&self) -> Option<GpuSpecs> {
846 self.0.state.borrow().renderer.gpu_specs().log_err()
847 }
848
849 fn update_ime_position(&self, _bounds: Bounds<Pixels>) {
850 // There is no such thing on Windows.
851 }
852}
853
854#[implement(IDropTarget)]
855struct WindowsDragDropHandler(pub Rc<WindowsWindowInner>);
856
857impl WindowsDragDropHandler {
858 fn handle_drag_drop(&self, input: PlatformInput) {
859 let mut lock = self.0.state.borrow_mut();
860 if let Some(mut func) = lock.callbacks.input.take() {
861 drop(lock);
862 func(input);
863 self.0.state.borrow_mut().callbacks.input = Some(func);
864 }
865 }
866}
867
868#[allow(non_snake_case)]
869impl IDropTarget_Impl for WindowsDragDropHandler_Impl {
870 fn DragEnter(
871 &self,
872 pdataobj: windows::core::Ref<IDataObject>,
873 _grfkeystate: MODIFIERKEYS_FLAGS,
874 pt: &POINTL,
875 pdweffect: *mut DROPEFFECT,
876 ) -> windows::core::Result<()> {
877 unsafe {
878 let idata_obj = pdataobj.ok()?;
879 let config = FORMATETC {
880 cfFormat: CF_HDROP.0,
881 ptd: std::ptr::null_mut() as _,
882 dwAspect: DVASPECT_CONTENT.0,
883 lindex: -1,
884 tymed: TYMED_HGLOBAL.0 as _,
885 };
886 let cursor_position = POINT { x: pt.x, y: pt.y };
887 if idata_obj.QueryGetData(&config as _) == S_OK {
888 *pdweffect = DROPEFFECT_COPY;
889 let Some(mut idata) = idata_obj.GetData(&config as _).log_err() else {
890 return Ok(());
891 };
892 if idata.u.hGlobal.is_invalid() {
893 return Ok(());
894 }
895 let hdrop = idata.u.hGlobal.0 as *mut HDROP;
896 let mut paths = SmallVec::<[PathBuf; 2]>::new();
897 with_file_names(*hdrop, |file_name| {
898 if let Some(path) = PathBuf::from_str(&file_name).log_err() {
899 paths.push(path);
900 }
901 });
902 ReleaseStgMedium(&mut idata);
903 let mut cursor_position = cursor_position;
904 ScreenToClient(self.0.hwnd, &mut cursor_position)
905 .ok()
906 .log_err();
907 let scale_factor = self.0.state.borrow().scale_factor;
908 let input = PlatformInput::FileDrop(FileDropEvent::Entered {
909 position: logical_point(
910 cursor_position.x as f32,
911 cursor_position.y as f32,
912 scale_factor,
913 ),
914 paths: ExternalPaths(paths),
915 });
916 self.handle_drag_drop(input);
917 } else {
918 *pdweffect = DROPEFFECT_NONE;
919 }
920 self.0
921 .drop_target_helper
922 .DragEnter(self.0.hwnd, idata_obj, &cursor_position, *pdweffect)
923 .log_err();
924 }
925 Ok(())
926 }
927
928 fn DragOver(
929 &self,
930 _grfkeystate: MODIFIERKEYS_FLAGS,
931 pt: &POINTL,
932 pdweffect: *mut DROPEFFECT,
933 ) -> windows::core::Result<()> {
934 let mut cursor_position = POINT { x: pt.x, y: pt.y };
935 unsafe {
936 *pdweffect = DROPEFFECT_COPY;
937 self.0
938 .drop_target_helper
939 .DragOver(&cursor_position, *pdweffect)
940 .log_err();
941 ScreenToClient(self.0.hwnd, &mut cursor_position)
942 .ok()
943 .log_err();
944 }
945 let scale_factor = self.0.state.borrow().scale_factor;
946 let input = PlatformInput::FileDrop(FileDropEvent::Pending {
947 position: logical_point(
948 cursor_position.x as f32,
949 cursor_position.y as f32,
950 scale_factor,
951 ),
952 });
953 self.handle_drag_drop(input);
954
955 Ok(())
956 }
957
958 fn DragLeave(&self) -> windows::core::Result<()> {
959 unsafe {
960 self.0.drop_target_helper.DragLeave().log_err();
961 }
962 let input = PlatformInput::FileDrop(FileDropEvent::Exited);
963 self.handle_drag_drop(input);
964
965 Ok(())
966 }
967
968 fn Drop(
969 &self,
970 pdataobj: windows::core::Ref<IDataObject>,
971 _grfkeystate: MODIFIERKEYS_FLAGS,
972 pt: &POINTL,
973 pdweffect: *mut DROPEFFECT,
974 ) -> windows::core::Result<()> {
975 let idata_obj = pdataobj.ok()?;
976 let mut cursor_position = POINT { x: pt.x, y: pt.y };
977 unsafe {
978 *pdweffect = DROPEFFECT_COPY;
979 self.0
980 .drop_target_helper
981 .Drop(idata_obj, &cursor_position, *pdweffect)
982 .log_err();
983 ScreenToClient(self.0.hwnd, &mut cursor_position)
984 .ok()
985 .log_err();
986 }
987 let scale_factor = self.0.state.borrow().scale_factor;
988 let input = PlatformInput::FileDrop(FileDropEvent::Submit {
989 position: logical_point(
990 cursor_position.x as f32,
991 cursor_position.y as f32,
992 scale_factor,
993 ),
994 });
995 self.handle_drag_drop(input);
996
997 Ok(())
998 }
999}
1000
1001#[derive(Debug, Clone, Copy)]
1002pub(crate) struct ClickState {
1003 button: MouseButton,
1004 last_click: Instant,
1005 last_position: Point<DevicePixels>,
1006 double_click_spatial_tolerance_width: i32,
1007 double_click_spatial_tolerance_height: i32,
1008 double_click_interval: Duration,
1009 pub(crate) current_count: usize,
1010}
1011
1012impl ClickState {
1013 pub fn new() -> Self {
1014 let double_click_spatial_tolerance_width = unsafe { GetSystemMetrics(SM_CXDOUBLECLK) };
1015 let double_click_spatial_tolerance_height = unsafe { GetSystemMetrics(SM_CYDOUBLECLK) };
1016 let double_click_interval = Duration::from_millis(unsafe { GetDoubleClickTime() } as u64);
1017
1018 ClickState {
1019 button: MouseButton::Left,
1020 last_click: Instant::now(),
1021 last_position: Point::default(),
1022 double_click_spatial_tolerance_width,
1023 double_click_spatial_tolerance_height,
1024 double_click_interval,
1025 current_count: 0,
1026 }
1027 }
1028
1029 /// update self and return the needed click count
1030 pub fn update(&mut self, button: MouseButton, new_position: Point<DevicePixels>) -> usize {
1031 if self.button == button && self.is_double_click(new_position) {
1032 self.current_count += 1;
1033 } else {
1034 self.current_count = 1;
1035 }
1036 self.last_click = Instant::now();
1037 self.last_position = new_position;
1038 self.button = button;
1039
1040 self.current_count
1041 }
1042
1043 pub fn system_update(&mut self, wparam: usize) {
1044 match wparam {
1045 // SPI_SETDOUBLECLKWIDTH
1046 29 => {
1047 self.double_click_spatial_tolerance_width =
1048 unsafe { GetSystemMetrics(SM_CXDOUBLECLK) }
1049 }
1050 // SPI_SETDOUBLECLKHEIGHT
1051 30 => {
1052 self.double_click_spatial_tolerance_height =
1053 unsafe { GetSystemMetrics(SM_CYDOUBLECLK) }
1054 }
1055 // SPI_SETDOUBLECLICKTIME
1056 32 => {
1057 self.double_click_interval =
1058 Duration::from_millis(unsafe { GetDoubleClickTime() } as u64)
1059 }
1060 _ => {}
1061 }
1062 }
1063
1064 #[inline]
1065 fn is_double_click(&self, new_position: Point<DevicePixels>) -> bool {
1066 let diff = self.last_position - new_position;
1067
1068 self.last_click.elapsed() < self.double_click_interval
1069 && diff.x.0.abs() <= self.double_click_spatial_tolerance_width
1070 && diff.y.0.abs() <= self.double_click_spatial_tolerance_height
1071 }
1072}
1073
1074struct StyleAndBounds {
1075 style: WINDOW_STYLE,
1076 x: i32,
1077 y: i32,
1078 cx: i32,
1079 cy: i32,
1080}
1081
1082#[repr(C)]
1083struct WINDOWCOMPOSITIONATTRIBDATA {
1084 attrib: u32,
1085 pv_data: *mut std::ffi::c_void,
1086 cb_data: usize,
1087}
1088
1089#[repr(C)]
1090struct AccentPolicy {
1091 accent_state: u32,
1092 accent_flags: u32,
1093 gradient_color: u32,
1094 animation_id: u32,
1095}
1096
1097type Color = (u8, u8, u8, u8);
1098
1099#[derive(Debug, Default, Clone, Copy)]
1100pub(crate) struct WindowBorderOffset {
1101 pub(crate) width_offset: i32,
1102 pub(crate) height_offset: i32,
1103}
1104
1105impl WindowBorderOffset {
1106 pub(crate) fn update(&mut self, hwnd: HWND) -> anyhow::Result<()> {
1107 let window_rect = unsafe {
1108 let mut rect = std::mem::zeroed();
1109 GetWindowRect(hwnd, &mut rect)?;
1110 rect
1111 };
1112 let client_rect = unsafe {
1113 let mut rect = std::mem::zeroed();
1114 GetClientRect(hwnd, &mut rect)?;
1115 rect
1116 };
1117 self.width_offset =
1118 (window_rect.right - window_rect.left) - (client_rect.right - client_rect.left);
1119 self.height_offset =
1120 (window_rect.bottom - window_rect.top) - (client_rect.bottom - client_rect.top);
1121 Ok(())
1122 }
1123}
1124
1125struct WindowOpenStatus {
1126 placement: WINDOWPLACEMENT,
1127 state: WindowOpenState,
1128}
1129
1130enum WindowOpenState {
1131 Maximized,
1132 Fullscreen,
1133 Windowed,
1134}
1135
1136const WINDOW_CLASS_NAME: PCWSTR = w!("Zed::Window");
1137
1138fn register_window_class(icon_handle: HICON) {
1139 static ONCE: Once = Once::new();
1140 ONCE.call_once(|| {
1141 let wc = WNDCLASSW {
1142 lpfnWndProc: Some(window_procedure),
1143 hIcon: icon_handle,
1144 lpszClassName: PCWSTR(WINDOW_CLASS_NAME.as_ptr()),
1145 style: CS_HREDRAW | CS_VREDRAW,
1146 hInstance: get_module_handle().into(),
1147 hbrBackground: unsafe { CreateSolidBrush(COLORREF(0x00000000)) },
1148 ..Default::default()
1149 };
1150 unsafe { RegisterClassW(&wc) };
1151 });
1152}
1153
1154unsafe extern "system" fn window_procedure(
1155 hwnd: HWND,
1156 msg: u32,
1157 wparam: WPARAM,
1158 lparam: LPARAM,
1159) -> LRESULT {
1160 if msg == WM_NCCREATE {
1161 let window_params = lparam.0 as *const CREATESTRUCTW;
1162 let window_params = unsafe { &*window_params };
1163 let window_creation_context = window_params.lpCreateParams as *mut WindowCreateContext;
1164 let window_creation_context = unsafe { &mut *window_creation_context };
1165 return match WindowsWindowInner::new(window_creation_context, hwnd, window_params) {
1166 Ok(window_state) => {
1167 let weak = Box::new(Rc::downgrade(&window_state));
1168 unsafe { set_window_long(hwnd, GWLP_USERDATA, Box::into_raw(weak) as isize) };
1169 window_creation_context.inner = Some(Ok(window_state));
1170 unsafe { DefWindowProcW(hwnd, msg, wparam, lparam) }
1171 }
1172 Err(error) => {
1173 window_creation_context.inner = Some(Err(error));
1174 LRESULT(0)
1175 }
1176 };
1177 }
1178
1179 let ptr = unsafe { get_window_long(hwnd, GWLP_USERDATA) } as *mut Weak<WindowsWindowInner>;
1180 if ptr.is_null() {
1181 return unsafe { DefWindowProcW(hwnd, msg, wparam, lparam) };
1182 }
1183 let inner = unsafe { &*ptr };
1184 let result = if let Some(inner) = inner.upgrade() {
1185 inner.handle_msg(hwnd, msg, wparam, lparam)
1186 } else {
1187 unsafe { DefWindowProcW(hwnd, msg, wparam, lparam) }
1188 };
1189
1190 if msg == WM_NCDESTROY {
1191 unsafe { set_window_long(hwnd, GWLP_USERDATA, 0) };
1192 unsafe { drop(Box::from_raw(ptr)) };
1193 }
1194
1195 result
1196}
1197
1198pub(crate) fn window_from_hwnd(hwnd: HWND) -> Option<Rc<WindowsWindowInner>> {
1199 if hwnd.is_invalid() {
1200 return None;
1201 }
1202
1203 let ptr = unsafe { get_window_long(hwnd, GWLP_USERDATA) } as *mut Weak<WindowsWindowInner>;
1204 if !ptr.is_null() {
1205 let inner = unsafe { &*ptr };
1206 inner.upgrade()
1207 } else {
1208 None
1209 }
1210}
1211
1212fn get_module_handle() -> HMODULE {
1213 unsafe {
1214 let mut h_module = std::mem::zeroed();
1215 GetModuleHandleExW(
1216 GET_MODULE_HANDLE_EX_FLAG_FROM_ADDRESS | GET_MODULE_HANDLE_EX_FLAG_UNCHANGED_REFCOUNT,
1217 windows::core::w!("ZedModule"),
1218 &mut h_module,
1219 )
1220 .expect("Unable to get module handle"); // this should never fail
1221
1222 h_module
1223 }
1224}
1225
1226fn register_drag_drop(window: &Rc<WindowsWindowInner>) -> Result<()> {
1227 let window_handle = window.hwnd;
1228 let handler = WindowsDragDropHandler(window.clone());
1229 // The lifetime of `IDropTarget` is handled by Windows, it won't release until
1230 // we call `RevokeDragDrop`.
1231 // So, it's safe to drop it here.
1232 let drag_drop_handler: IDropTarget = handler.into();
1233 unsafe {
1234 RegisterDragDrop(window_handle, &drag_drop_handler)
1235 .context("unable to register drag-drop event")?;
1236 }
1237 Ok(())
1238}
1239
1240fn calculate_window_rect(bounds: Bounds<DevicePixels>, border_offset: WindowBorderOffset) -> RECT {
1241 // NOTE:
1242 // The reason we're not using `AdjustWindowRectEx()` here is
1243 // that the size reported by this function is incorrect.
1244 // You can test it, and there are similar discussions online.
1245 // See: https://stackoverflow.com/questions/12423584/how-to-set-exact-client-size-for-overlapped-window-winapi
1246 //
1247 // So we manually calculate these values here.
1248 let mut rect = RECT {
1249 left: bounds.left().0,
1250 top: bounds.top().0,
1251 right: bounds.right().0,
1252 bottom: bounds.bottom().0,
1253 };
1254 let left_offset = border_offset.width_offset / 2;
1255 let top_offset = border_offset.height_offset / 2;
1256 let right_offset = border_offset.width_offset - left_offset;
1257 let bottom_offset = border_offset.height_offset - top_offset;
1258 rect.left -= left_offset;
1259 rect.top -= top_offset;
1260 rect.right += right_offset;
1261 rect.bottom += bottom_offset;
1262 rect
1263}
1264
1265fn calculate_client_rect(
1266 rect: RECT,
1267 border_offset: WindowBorderOffset,
1268 scale_factor: f32,
1269) -> Bounds<Pixels> {
1270 let left_offset = border_offset.width_offset / 2;
1271 let top_offset = border_offset.height_offset / 2;
1272 let right_offset = border_offset.width_offset - left_offset;
1273 let bottom_offset = border_offset.height_offset - top_offset;
1274 let left = rect.left + left_offset;
1275 let top = rect.top + top_offset;
1276 let right = rect.right - right_offset;
1277 let bottom = rect.bottom - bottom_offset;
1278 let physical_size = size(DevicePixels(right - left), DevicePixels(bottom - top));
1279 Bounds {
1280 origin: logical_point(left as f32, top as f32, scale_factor),
1281 size: physical_size.to_pixels(scale_factor),
1282 }
1283}
1284
1285fn retrieve_window_placement(
1286 hwnd: HWND,
1287 display: WindowsDisplay,
1288 initial_bounds: Bounds<Pixels>,
1289 scale_factor: f32,
1290 border_offset: WindowBorderOffset,
1291) -> Result<WINDOWPLACEMENT> {
1292 let mut placement = WINDOWPLACEMENT {
1293 length: std::mem::size_of::<WINDOWPLACEMENT>() as u32,
1294 ..Default::default()
1295 };
1296 unsafe { GetWindowPlacement(hwnd, &mut placement)? };
1297 // the bounds may be not inside the display
1298 let bounds = if display.check_given_bounds(initial_bounds) {
1299 initial_bounds
1300 } else {
1301 display.default_bounds()
1302 };
1303 let bounds = bounds.to_device_pixels(scale_factor);
1304 placement.rcNormalPosition = calculate_window_rect(bounds, border_offset);
1305 Ok(placement)
1306}
1307
1308fn set_window_composition_attribute(hwnd: HWND, color: Option<Color>, state: u32) {
1309 let mut version = unsafe { std::mem::zeroed() };
1310 let status = unsafe { windows::Wdk::System::SystemServices::RtlGetVersion(&mut version) };
1311 if !status.is_ok() || version.dwBuildNumber < 17763 {
1312 return;
1313 }
1314
1315 unsafe {
1316 type SetWindowCompositionAttributeType =
1317 unsafe extern "system" fn(HWND, *mut WINDOWCOMPOSITIONATTRIBDATA) -> BOOL;
1318 let module_name = PCSTR::from_raw(c"user32.dll".as_ptr() as *const u8);
1319 if let Some(user32) = GetModuleHandleA(module_name)
1320 .context("Unable to get user32.dll handle")
1321 .log_err()
1322 {
1323 let func_name = PCSTR::from_raw(c"SetWindowCompositionAttribute".as_ptr() as *const u8);
1324 let set_window_composition_attribute: SetWindowCompositionAttributeType =
1325 std::mem::transmute(GetProcAddress(user32, func_name));
1326 let mut color = color.unwrap_or_default();
1327 let is_acrylic = state == 4;
1328 if is_acrylic && color.3 == 0 {
1329 color.3 = 1;
1330 }
1331 let accent = AccentPolicy {
1332 accent_state: state,
1333 accent_flags: if is_acrylic { 0 } else { 2 },
1334 gradient_color: (color.0 as u32)
1335 | ((color.1 as u32) << 8)
1336 | ((color.2 as u32) << 16)
1337 | ((color.3 as u32) << 24),
1338 animation_id: 0,
1339 };
1340 let mut data = WINDOWCOMPOSITIONATTRIBDATA {
1341 attrib: 0x13,
1342 pv_data: &accent as *const _ as *mut _,
1343 cb_data: std::mem::size_of::<AccentPolicy>(),
1344 };
1345 let _ = set_window_composition_attribute(hwnd, &mut data as *mut _ as _);
1346 }
1347 }
1348}
1349
1350#[cfg(test)]
1351mod tests {
1352 use super::ClickState;
1353 use crate::{DevicePixels, MouseButton, point};
1354 use std::time::Duration;
1355
1356 #[test]
1357 fn test_double_click_interval() {
1358 let mut state = ClickState::new();
1359 assert_eq!(
1360 state.update(MouseButton::Left, point(DevicePixels(0), DevicePixels(0))),
1361 1
1362 );
1363 assert_eq!(
1364 state.update(MouseButton::Right, point(DevicePixels(0), DevicePixels(0))),
1365 1
1366 );
1367 assert_eq!(
1368 state.update(MouseButton::Left, point(DevicePixels(0), DevicePixels(0))),
1369 1
1370 );
1371 assert_eq!(
1372 state.update(MouseButton::Left, point(DevicePixels(0), DevicePixels(0))),
1373 2
1374 );
1375 state.last_click -= Duration::from_millis(700);
1376 assert_eq!(
1377 state.update(MouseButton::Left, point(DevicePixels(0), DevicePixels(0))),
1378 1
1379 );
1380 }
1381
1382 #[test]
1383 fn test_double_click_spatial_tolerance() {
1384 let mut state = ClickState::new();
1385 assert_eq!(
1386 state.update(MouseButton::Left, point(DevicePixels(-3), DevicePixels(0))),
1387 1
1388 );
1389 assert_eq!(
1390 state.update(MouseButton::Left, point(DevicePixels(0), DevicePixels(3))),
1391 2
1392 );
1393 assert_eq!(
1394 state.update(MouseButton::Right, point(DevicePixels(3), DevicePixels(2))),
1395 1
1396 );
1397 assert_eq!(
1398 state.update(MouseButton::Right, point(DevicePixels(10), DevicePixels(0))),
1399 1
1400 );
1401 }
1402}