1use std::{
2 cell::RefCell,
3 mem::ManuallyDrop,
4 path::{Path, PathBuf},
5 rc::Rc,
6 sync::Arc,
7};
8
9use ::util::{ResultExt, paths::SanitizedPath};
10use anyhow::{Context as _, Result, anyhow};
11use async_task::Runnable;
12use futures::channel::oneshot::{self, Receiver};
13use itertools::Itertools;
14use parking_lot::RwLock;
15use smallvec::SmallVec;
16use windows::{
17 UI::ViewManagement::UISettings,
18 Win32::{
19 Foundation::*,
20 Graphics::{
21 Gdi::*,
22 Imaging::{CLSID_WICImagingFactory, IWICImagingFactory},
23 },
24 Security::Credentials::*,
25 System::{Com::*, LibraryLoader::*, Ole::*, SystemInformation::*, Threading::*},
26 UI::{Input::KeyboardAndMouse::*, Shell::*, WindowsAndMessaging::*},
27 },
28 core::*,
29};
30
31use crate::{platform::blade::BladeContext, *};
32
33pub(crate) struct WindowsPlatform {
34 state: RefCell<WindowsPlatformState>,
35 raw_window_handles: RwLock<SmallVec<[HWND; 4]>>,
36 // The below members will never change throughout the entire lifecycle of the app.
37 gpu_context: BladeContext,
38 icon: HICON,
39 main_receiver: flume::Receiver<Runnable>,
40 background_executor: BackgroundExecutor,
41 foreground_executor: ForegroundExecutor,
42 text_system: Arc<DirectWriteTextSystem>,
43 windows_version: WindowsVersion,
44 bitmap_factory: ManuallyDrop<IWICImagingFactory>,
45 drop_target_helper: IDropTargetHelper,
46 validation_number: usize,
47 main_thread_id_win32: u32,
48}
49
50pub(crate) struct WindowsPlatformState {
51 callbacks: PlatformCallbacks,
52 menus: Vec<OwnedMenu>,
53 jump_list: JumpList,
54 // NOTE: standard cursor handles don't need to close.
55 pub(crate) current_cursor: Option<HCURSOR>,
56}
57
58#[derive(Default)]
59struct PlatformCallbacks {
60 open_urls: Option<Box<dyn FnMut(Vec<String>)>>,
61 quit: Option<Box<dyn FnMut()>>,
62 reopen: Option<Box<dyn FnMut()>>,
63 app_menu_action: Option<Box<dyn FnMut(&dyn Action)>>,
64 will_open_app_menu: Option<Box<dyn FnMut()>>,
65 validate_app_menu_command: Option<Box<dyn FnMut(&dyn Action) -> bool>>,
66 keyboard_layout_change: Option<Box<dyn FnMut()>>,
67}
68
69impl WindowsPlatformState {
70 fn new() -> Self {
71 let callbacks = PlatformCallbacks::default();
72 let jump_list = JumpList::new();
73 let current_cursor = load_cursor(CursorStyle::Arrow);
74
75 Self {
76 callbacks,
77 jump_list,
78 current_cursor,
79 menus: Vec::new(),
80 }
81 }
82}
83
84impl WindowsPlatform {
85 pub(crate) fn new() -> Result<Self> {
86 unsafe {
87 OleInitialize(None).context("unable to initialize Windows OLE")?;
88 }
89 let (main_sender, main_receiver) = flume::unbounded::<Runnable>();
90 let main_thread_id_win32 = unsafe { GetCurrentThreadId() };
91 let validation_number = rand::random::<usize>();
92 let dispatcher = Arc::new(WindowsDispatcher::new(
93 main_sender,
94 main_thread_id_win32,
95 validation_number,
96 ));
97 let background_executor = BackgroundExecutor::new(dispatcher.clone());
98 let foreground_executor = ForegroundExecutor::new(dispatcher);
99 let bitmap_factory = ManuallyDrop::new(unsafe {
100 CoCreateInstance(&CLSID_WICImagingFactory, None, CLSCTX_INPROC_SERVER)
101 .context("Error creating bitmap factory.")?
102 });
103 let text_system = Arc::new(
104 DirectWriteTextSystem::new(&bitmap_factory)
105 .context("Error creating DirectWriteTextSystem")?,
106 );
107 let drop_target_helper: IDropTargetHelper = unsafe {
108 CoCreateInstance(&CLSID_DragDropHelper, None, CLSCTX_INPROC_SERVER)
109 .context("Error creating drop target helper.")?
110 };
111 let icon = load_icon().unwrap_or_default();
112 let state = RefCell::new(WindowsPlatformState::new());
113 let raw_window_handles = RwLock::new(SmallVec::new());
114 let gpu_context = BladeContext::new().context("Unable to init GPU context")?;
115 let windows_version = WindowsVersion::new().context("Error retrieve windows version")?;
116
117 Ok(Self {
118 state,
119 raw_window_handles,
120 gpu_context,
121 icon,
122 main_receiver,
123 background_executor,
124 foreground_executor,
125 text_system,
126 windows_version,
127 bitmap_factory,
128 drop_target_helper,
129 validation_number,
130 main_thread_id_win32,
131 })
132 }
133
134 fn redraw_all(&self) {
135 for handle in self.raw_window_handles.read().iter() {
136 unsafe {
137 RedrawWindow(Some(*handle), None, None, RDW_INVALIDATE | RDW_UPDATENOW)
138 .ok()
139 .log_err();
140 }
141 }
142 }
143
144 pub fn try_get_windows_inner_from_hwnd(&self, hwnd: HWND) -> Option<Rc<WindowsWindowStatePtr>> {
145 self.raw_window_handles
146 .read()
147 .iter()
148 .find(|entry| *entry == &hwnd)
149 .and_then(|hwnd| try_get_window_inner(*hwnd))
150 }
151
152 #[inline]
153 fn post_message(&self, message: u32, wparam: WPARAM, lparam: LPARAM) {
154 self.raw_window_handles
155 .read()
156 .iter()
157 .for_each(|handle| unsafe {
158 PostMessageW(Some(*handle), message, wparam, lparam).log_err();
159 });
160 }
161
162 fn close_one_window(&self, target_window: HWND) -> bool {
163 let mut lock = self.raw_window_handles.write();
164 let index = lock
165 .iter()
166 .position(|handle| *handle == target_window)
167 .unwrap();
168 lock.remove(index);
169
170 lock.is_empty()
171 }
172
173 #[inline]
174 fn run_foreground_task(&self) {
175 for runnable in self.main_receiver.drain() {
176 runnable.run();
177 }
178 }
179
180 fn generate_creation_info(&self) -> WindowCreationInfo {
181 WindowCreationInfo {
182 icon: self.icon,
183 executor: self.foreground_executor.clone(),
184 current_cursor: self.state.borrow().current_cursor,
185 windows_version: self.windows_version,
186 drop_target_helper: self.drop_target_helper.clone(),
187 validation_number: self.validation_number,
188 main_receiver: self.main_receiver.clone(),
189 main_thread_id_win32: self.main_thread_id_win32,
190 }
191 }
192
193 fn handle_dock_action_event(&self, action_idx: usize) {
194 let mut lock = self.state.borrow_mut();
195 if let Some(mut callback) = lock.callbacks.app_menu_action.take() {
196 let Some(action) = lock
197 .jump_list
198 .dock_menus
199 .get(action_idx)
200 .map(|dock_menu| dock_menu.action.boxed_clone())
201 else {
202 lock.callbacks.app_menu_action = Some(callback);
203 log::error!("Dock menu for index {action_idx} not found");
204 return;
205 };
206 drop(lock);
207 callback(&*action);
208 self.state.borrow_mut().callbacks.app_menu_action = Some(callback);
209 }
210 }
211
212 fn handle_input_lang_change(&self) {
213 let mut lock = self.state.borrow_mut();
214 if let Some(mut callback) = lock.callbacks.keyboard_layout_change.take() {
215 drop(lock);
216 callback();
217 self.state
218 .borrow_mut()
219 .callbacks
220 .keyboard_layout_change
221 .get_or_insert(callback);
222 }
223 }
224
225 // Returns true if the app should quit.
226 fn handle_events(&self) -> bool {
227 let mut msg = MSG::default();
228 unsafe {
229 while PeekMessageW(&mut msg, None, 0, 0, PM_REMOVE).as_bool() {
230 match msg.message {
231 WM_QUIT => return true,
232 WM_INPUTLANGCHANGE
233 | WM_GPUI_CLOSE_ONE_WINDOW
234 | WM_GPUI_TASK_DISPATCHED_ON_MAIN_THREAD
235 | WM_GPUI_DOCK_MENU_ACTION => {
236 if self.handle_gpui_evnets(msg.message, msg.wParam, msg.lParam, &msg) {
237 return true;
238 }
239 }
240 _ => {
241 DispatchMessageW(&msg);
242 }
243 }
244 }
245 }
246 false
247 }
248
249 // Returns true if the app should quit.
250 fn handle_gpui_evnets(
251 &self,
252 message: u32,
253 wparam: WPARAM,
254 lparam: LPARAM,
255 msg: *const MSG,
256 ) -> bool {
257 if wparam.0 != self.validation_number {
258 unsafe { DispatchMessageW(msg) };
259 return false;
260 }
261 match message {
262 WM_GPUI_CLOSE_ONE_WINDOW => {
263 if self.close_one_window(HWND(lparam.0 as _)) {
264 return true;
265 }
266 }
267 WM_GPUI_TASK_DISPATCHED_ON_MAIN_THREAD => self.run_foreground_task(),
268 WM_GPUI_DOCK_MENU_ACTION => self.handle_dock_action_event(lparam.0 as _),
269 WM_INPUTLANGCHANGE => self.handle_input_lang_change(),
270 _ => unreachable!(),
271 }
272 false
273 }
274
275 fn set_dock_menus(&self, menus: Vec<MenuItem>) {
276 let mut actions = Vec::new();
277 menus.into_iter().for_each(|menu| {
278 if let Some(dock_menu) = DockMenuItem::new(menu).log_err() {
279 actions.push(dock_menu);
280 }
281 });
282 let mut lock = self.state.borrow_mut();
283 lock.jump_list.dock_menus = actions;
284 update_jump_list(&lock.jump_list).log_err();
285 }
286
287 fn update_jump_list(
288 &self,
289 menus: Vec<MenuItem>,
290 entries: Vec<SmallVec<[PathBuf; 2]>>,
291 ) -> Vec<SmallVec<[PathBuf; 2]>> {
292 let mut actions = Vec::new();
293 menus.into_iter().for_each(|menu| {
294 if let Some(dock_menu) = DockMenuItem::new(menu).log_err() {
295 actions.push(dock_menu);
296 }
297 });
298 let mut lock = self.state.borrow_mut();
299 lock.jump_list.dock_menus = actions;
300 lock.jump_list.recent_workspaces = entries;
301 update_jump_list(&lock.jump_list)
302 .log_err()
303 .unwrap_or_default()
304 }
305
306 fn find_current_active_window(&self) -> Option<HWND> {
307 let active_window_hwnd = unsafe { GetActiveWindow() };
308 if active_window_hwnd.is_invalid() {
309 return None;
310 }
311 self.raw_window_handles
312 .read()
313 .iter()
314 .find(|&&hwnd| hwnd == active_window_hwnd)
315 .copied()
316 }
317}
318
319impl Platform for WindowsPlatform {
320 fn background_executor(&self) -> BackgroundExecutor {
321 self.background_executor.clone()
322 }
323
324 fn foreground_executor(&self) -> ForegroundExecutor {
325 self.foreground_executor.clone()
326 }
327
328 fn text_system(&self) -> Arc<dyn PlatformTextSystem> {
329 self.text_system.clone()
330 }
331
332 fn keyboard_layout(&self) -> Box<dyn PlatformKeyboardLayout> {
333 Box::new(
334 WindowsKeyboardLayout::new()
335 .log_err()
336 .unwrap_or(WindowsKeyboardLayout::unknown()),
337 )
338 }
339
340 fn on_keyboard_layout_change(&self, callback: Box<dyn FnMut()>) {
341 self.state.borrow_mut().callbacks.keyboard_layout_change = Some(callback);
342 }
343
344 fn run(&self, on_finish_launching: Box<dyn 'static + FnOnce()>) {
345 on_finish_launching();
346 let vsync_event = unsafe { Owned::new(CreateEventW(None, false, false, None).unwrap()) };
347 begin_vsync(*vsync_event);
348 'a: loop {
349 let wait_result = unsafe {
350 MsgWaitForMultipleObjects(Some(&[*vsync_event]), false, INFINITE, QS_ALLINPUT)
351 };
352
353 match wait_result {
354 // compositor clock ticked so we should draw a frame
355 WAIT_EVENT(0) => self.redraw_all(),
356 // Windows thread messages are posted
357 WAIT_EVENT(1) => {
358 if self.handle_events() {
359 break 'a;
360 }
361 }
362 _ => {
363 log::error!("Something went wrong while waiting {:?}", wait_result);
364 break;
365 }
366 }
367 }
368
369 if let Some(ref mut callback) = self.state.borrow_mut().callbacks.quit {
370 callback();
371 }
372 }
373
374 fn quit(&self) {
375 self.foreground_executor()
376 .spawn(async { unsafe { PostQuitMessage(0) } })
377 .detach();
378 }
379
380 fn restart(&self, _: Option<PathBuf>) {
381 let pid = std::process::id();
382 let Some(app_path) = self.app_path().log_err() else {
383 return;
384 };
385 let script = format!(
386 r#"
387 $pidToWaitFor = {}
388 $exePath = "{}"
389
390 while ($true) {{
391 $process = Get-Process -Id $pidToWaitFor -ErrorAction SilentlyContinue
392 if (-not $process) {{
393 Start-Process -FilePath $exePath
394 break
395 }}
396 Start-Sleep -Seconds 0.1
397 }}
398 "#,
399 pid,
400 app_path.display(),
401 );
402 let restart_process = util::command::new_std_command("powershell.exe")
403 .arg("-command")
404 .arg(script)
405 .spawn();
406
407 match restart_process {
408 Ok(_) => self.quit(),
409 Err(e) => log::error!("failed to spawn restart script: {:?}", e),
410 }
411 }
412
413 fn activate(&self, _ignoring_other_apps: bool) {}
414
415 fn hide(&self) {}
416
417 // todo(windows)
418 fn hide_other_apps(&self) {
419 unimplemented!()
420 }
421
422 // todo(windows)
423 fn unhide_other_apps(&self) {
424 unimplemented!()
425 }
426
427 fn displays(&self) -> Vec<Rc<dyn PlatformDisplay>> {
428 WindowsDisplay::displays()
429 }
430
431 fn primary_display(&self) -> Option<Rc<dyn PlatformDisplay>> {
432 WindowsDisplay::primary_monitor().map(|display| Rc::new(display) as Rc<dyn PlatformDisplay>)
433 }
434
435 #[cfg(feature = "screen-capture")]
436 fn is_screen_capture_supported(&self) -> bool {
437 true
438 }
439
440 #[cfg(feature = "screen-capture")]
441 fn screen_capture_sources(
442 &self,
443 ) -> oneshot::Receiver<Result<Vec<Rc<dyn ScreenCaptureSource>>>> {
444 crate::platform::scap_screen_capture::scap_screen_sources(&self.foreground_executor)
445 }
446
447 fn active_window(&self) -> Option<AnyWindowHandle> {
448 let active_window_hwnd = unsafe { GetActiveWindow() };
449 self.try_get_windows_inner_from_hwnd(active_window_hwnd)
450 .map(|inner| inner.handle)
451 }
452
453 fn open_window(
454 &self,
455 handle: AnyWindowHandle,
456 options: WindowParams,
457 ) -> Result<Box<dyn PlatformWindow>> {
458 let window = WindowsWindow::new(
459 handle,
460 options,
461 self.generate_creation_info(),
462 &self.gpu_context,
463 )?;
464 let handle = window.get_raw_handle();
465 self.raw_window_handles.write().push(handle);
466
467 Ok(Box::new(window))
468 }
469
470 fn window_appearance(&self) -> WindowAppearance {
471 system_appearance().log_err().unwrap_or_default()
472 }
473
474 fn open_url(&self, url: &str) {
475 let url_string = url.to_string();
476 self.background_executor()
477 .spawn(async move {
478 if url_string.is_empty() {
479 return;
480 }
481 open_target(url_string.as_str());
482 })
483 .detach();
484 }
485
486 fn on_open_urls(&self, callback: Box<dyn FnMut(Vec<String>)>) {
487 self.state.borrow_mut().callbacks.open_urls = Some(callback);
488 }
489
490 fn prompt_for_paths(
491 &self,
492 options: PathPromptOptions,
493 ) -> Receiver<Result<Option<Vec<PathBuf>>>> {
494 let (tx, rx) = oneshot::channel();
495 let window = self.find_current_active_window();
496 self.foreground_executor()
497 .spawn(async move {
498 let _ = tx.send(file_open_dialog(options, window));
499 })
500 .detach();
501
502 rx
503 }
504
505 fn prompt_for_new_path(&self, directory: &Path) -> Receiver<Result<Option<PathBuf>>> {
506 let directory = directory.to_owned();
507 let (tx, rx) = oneshot::channel();
508 let window = self.find_current_active_window();
509 self.foreground_executor()
510 .spawn(async move {
511 let _ = tx.send(file_save_dialog(directory, window));
512 })
513 .detach();
514
515 rx
516 }
517
518 fn can_select_mixed_files_and_dirs(&self) -> bool {
519 // The FOS_PICKFOLDERS flag toggles between "only files" and "only folders".
520 false
521 }
522
523 fn reveal_path(&self, path: &Path) {
524 let Ok(file_full_path) = path.canonicalize() else {
525 log::error!("unable to parse file path");
526 return;
527 };
528 self.background_executor()
529 .spawn(async move {
530 let Some(path) = file_full_path.to_str() else {
531 return;
532 };
533 if path.is_empty() {
534 return;
535 }
536 open_target_in_explorer(path);
537 })
538 .detach();
539 }
540
541 fn open_with_system(&self, path: &Path) {
542 let Ok(full_path) = path.canonicalize() else {
543 log::error!("unable to parse file full path: {}", path.display());
544 return;
545 };
546 self.background_executor()
547 .spawn(async move {
548 let Some(full_path_str) = full_path.to_str() else {
549 return;
550 };
551 if full_path_str.is_empty() {
552 return;
553 };
554 open_target(full_path_str);
555 })
556 .detach();
557 }
558
559 fn on_quit(&self, callback: Box<dyn FnMut()>) {
560 self.state.borrow_mut().callbacks.quit = Some(callback);
561 }
562
563 fn on_reopen(&self, callback: Box<dyn FnMut()>) {
564 self.state.borrow_mut().callbacks.reopen = Some(callback);
565 }
566
567 fn set_menus(&self, menus: Vec<Menu>, _keymap: &Keymap) {
568 self.state.borrow_mut().menus = menus.into_iter().map(|menu| menu.owned()).collect();
569 }
570
571 fn get_menus(&self) -> Option<Vec<OwnedMenu>> {
572 Some(self.state.borrow().menus.clone())
573 }
574
575 fn set_dock_menu(&self, menus: Vec<MenuItem>, _keymap: &Keymap) {
576 self.set_dock_menus(menus);
577 }
578
579 fn on_app_menu_action(&self, callback: Box<dyn FnMut(&dyn Action)>) {
580 self.state.borrow_mut().callbacks.app_menu_action = Some(callback);
581 }
582
583 fn on_will_open_app_menu(&self, callback: Box<dyn FnMut()>) {
584 self.state.borrow_mut().callbacks.will_open_app_menu = Some(callback);
585 }
586
587 fn on_validate_app_menu_command(&self, callback: Box<dyn FnMut(&dyn Action) -> bool>) {
588 self.state.borrow_mut().callbacks.validate_app_menu_command = Some(callback);
589 }
590
591 fn app_path(&self) -> Result<PathBuf> {
592 Ok(std::env::current_exe()?)
593 }
594
595 // todo(windows)
596 fn path_for_auxiliary_executable(&self, _name: &str) -> Result<PathBuf> {
597 anyhow::bail!("not yet implemented");
598 }
599
600 fn set_cursor_style(&self, style: CursorStyle) {
601 let hcursor = load_cursor(style);
602 let mut lock = self.state.borrow_mut();
603 if lock.current_cursor.map(|c| c.0) != hcursor.map(|c| c.0) {
604 self.post_message(
605 WM_GPUI_CURSOR_STYLE_CHANGED,
606 WPARAM(0),
607 LPARAM(hcursor.map_or(0, |c| c.0 as isize)),
608 );
609 lock.current_cursor = hcursor;
610 }
611 }
612
613 fn should_auto_hide_scrollbars(&self) -> bool {
614 should_auto_hide_scrollbars().log_err().unwrap_or(false)
615 }
616
617 fn write_to_clipboard(&self, item: ClipboardItem) {
618 write_to_clipboard(item);
619 }
620
621 fn read_from_clipboard(&self) -> Option<ClipboardItem> {
622 read_from_clipboard()
623 }
624
625 fn write_credentials(&self, url: &str, username: &str, password: &[u8]) -> Task<Result<()>> {
626 let mut password = password.to_vec();
627 let mut username = username.encode_utf16().chain(Some(0)).collect_vec();
628 let mut target_name = windows_credentials_target_name(url)
629 .encode_utf16()
630 .chain(Some(0))
631 .collect_vec();
632 self.foreground_executor().spawn(async move {
633 let credentials = CREDENTIALW {
634 LastWritten: unsafe { GetSystemTimeAsFileTime() },
635 Flags: CRED_FLAGS(0),
636 Type: CRED_TYPE_GENERIC,
637 TargetName: PWSTR::from_raw(target_name.as_mut_ptr()),
638 CredentialBlobSize: password.len() as u32,
639 CredentialBlob: password.as_ptr() as *mut _,
640 Persist: CRED_PERSIST_LOCAL_MACHINE,
641 UserName: PWSTR::from_raw(username.as_mut_ptr()),
642 ..CREDENTIALW::default()
643 };
644 unsafe { CredWriteW(&credentials, 0) }?;
645 Ok(())
646 })
647 }
648
649 fn read_credentials(&self, url: &str) -> Task<Result<Option<(String, Vec<u8>)>>> {
650 let mut target_name = windows_credentials_target_name(url)
651 .encode_utf16()
652 .chain(Some(0))
653 .collect_vec();
654 self.foreground_executor().spawn(async move {
655 let mut credentials: *mut CREDENTIALW = std::ptr::null_mut();
656 unsafe {
657 CredReadW(
658 PCWSTR::from_raw(target_name.as_ptr()),
659 CRED_TYPE_GENERIC,
660 None,
661 &mut credentials,
662 )?
663 };
664
665 if credentials.is_null() {
666 Ok(None)
667 } else {
668 let username: String = unsafe { (*credentials).UserName.to_string()? };
669 let credential_blob = unsafe {
670 std::slice::from_raw_parts(
671 (*credentials).CredentialBlob,
672 (*credentials).CredentialBlobSize as usize,
673 )
674 };
675 let password = credential_blob.to_vec();
676 unsafe { CredFree(credentials as *const _ as _) };
677 Ok(Some((username, password)))
678 }
679 })
680 }
681
682 fn delete_credentials(&self, url: &str) -> Task<Result<()>> {
683 let mut target_name = windows_credentials_target_name(url)
684 .encode_utf16()
685 .chain(Some(0))
686 .collect_vec();
687 self.foreground_executor().spawn(async move {
688 unsafe {
689 CredDeleteW(
690 PCWSTR::from_raw(target_name.as_ptr()),
691 CRED_TYPE_GENERIC,
692 None,
693 )?
694 };
695 Ok(())
696 })
697 }
698
699 fn register_url_scheme(&self, _: &str) -> Task<anyhow::Result<()>> {
700 Task::ready(Err(anyhow!("register_url_scheme unimplemented")))
701 }
702
703 fn perform_dock_menu_action(&self, action: usize) {
704 unsafe {
705 PostThreadMessageW(
706 self.main_thread_id_win32,
707 WM_GPUI_DOCK_MENU_ACTION,
708 WPARAM(self.validation_number),
709 LPARAM(action as isize),
710 )
711 .log_err();
712 }
713 }
714
715 fn update_jump_list(
716 &self,
717 menus: Vec<MenuItem>,
718 entries: Vec<SmallVec<[PathBuf; 2]>>,
719 ) -> Vec<SmallVec<[PathBuf; 2]>> {
720 self.update_jump_list(menus, entries)
721 }
722}
723
724impl Drop for WindowsPlatform {
725 fn drop(&mut self) {
726 unsafe {
727 ManuallyDrop::drop(&mut self.bitmap_factory);
728 OleUninitialize();
729 }
730 }
731}
732
733pub(crate) struct WindowCreationInfo {
734 pub(crate) icon: HICON,
735 pub(crate) executor: ForegroundExecutor,
736 pub(crate) current_cursor: Option<HCURSOR>,
737 pub(crate) windows_version: WindowsVersion,
738 pub(crate) drop_target_helper: IDropTargetHelper,
739 pub(crate) validation_number: usize,
740 pub(crate) main_receiver: flume::Receiver<Runnable>,
741 pub(crate) main_thread_id_win32: u32,
742}
743
744fn open_target(target: &str) {
745 unsafe {
746 let ret = ShellExecuteW(
747 None,
748 windows::core::w!("open"),
749 &HSTRING::from(target),
750 None,
751 None,
752 SW_SHOWDEFAULT,
753 );
754 if ret.0 as isize <= 32 {
755 log::error!("Unable to open target: {}", std::io::Error::last_os_error());
756 }
757 }
758}
759
760fn open_target_in_explorer(target: &str) {
761 unsafe {
762 let ret = ShellExecuteW(
763 None,
764 windows::core::w!("open"),
765 windows::core::w!("explorer.exe"),
766 &HSTRING::from(format!("/select,{}", target).as_str()),
767 None,
768 SW_SHOWDEFAULT,
769 );
770 if ret.0 as isize <= 32 {
771 log::error!(
772 "Unable to open target in explorer: {}",
773 std::io::Error::last_os_error()
774 );
775 }
776 }
777}
778
779fn file_open_dialog(
780 options: PathPromptOptions,
781 window: Option<HWND>,
782) -> Result<Option<Vec<PathBuf>>> {
783 let folder_dialog: IFileOpenDialog =
784 unsafe { CoCreateInstance(&FileOpenDialog, None, CLSCTX_ALL)? };
785
786 let mut dialog_options = FOS_FILEMUSTEXIST;
787 if options.multiple {
788 dialog_options |= FOS_ALLOWMULTISELECT;
789 }
790 if options.directories {
791 dialog_options |= FOS_PICKFOLDERS;
792 }
793
794 unsafe {
795 folder_dialog.SetOptions(dialog_options)?;
796 if folder_dialog.Show(window).is_err() {
797 // User cancelled
798 return Ok(None);
799 }
800 }
801
802 let results = unsafe { folder_dialog.GetResults()? };
803 let file_count = unsafe { results.GetCount()? };
804 if file_count == 0 {
805 return Ok(None);
806 }
807
808 let mut paths = Vec::with_capacity(file_count as usize);
809 for i in 0..file_count {
810 let item = unsafe { results.GetItemAt(i)? };
811 let path = unsafe { item.GetDisplayName(SIGDN_FILESYSPATH)?.to_string()? };
812 paths.push(PathBuf::from(path));
813 }
814
815 Ok(Some(paths))
816}
817
818fn file_save_dialog(directory: PathBuf, window: Option<HWND>) -> Result<Option<PathBuf>> {
819 let dialog: IFileSaveDialog = unsafe { CoCreateInstance(&FileSaveDialog, None, CLSCTX_ALL)? };
820 if !directory.to_string_lossy().is_empty() {
821 if let Some(full_path) = directory.canonicalize().log_err() {
822 let full_path = SanitizedPath::from(full_path);
823 let full_path_string = full_path.to_string();
824 let path_item: IShellItem =
825 unsafe { SHCreateItemFromParsingName(&HSTRING::from(full_path_string), None)? };
826 unsafe { dialog.SetFolder(&path_item).log_err() };
827 }
828 }
829 unsafe {
830 dialog.SetFileTypes(&[Common::COMDLG_FILTERSPEC {
831 pszName: windows::core::w!("All files"),
832 pszSpec: windows::core::w!("*.*"),
833 }])?;
834 if dialog.Show(window).is_err() {
835 // User cancelled
836 return Ok(None);
837 }
838 }
839 let shell_item = unsafe { dialog.GetResult()? };
840 let file_path_string = unsafe {
841 let pwstr = shell_item.GetDisplayName(SIGDN_FILESYSPATH)?;
842 let string = pwstr.to_string()?;
843 CoTaskMemFree(Some(pwstr.0 as _));
844 string
845 };
846 Ok(Some(PathBuf::from(file_path_string)))
847}
848
849fn begin_vsync(vsync_event: HANDLE) {
850 let event: SafeHandle = vsync_event.into();
851 std::thread::spawn(move || unsafe {
852 loop {
853 windows::Win32::Graphics::Dwm::DwmFlush().log_err();
854 SetEvent(*event).log_err();
855 }
856 });
857}
858
859fn load_icon() -> Result<HICON> {
860 let module = unsafe { GetModuleHandleW(None).context("unable to get module handle")? };
861 let handle = unsafe {
862 LoadImageW(
863 Some(module.into()),
864 windows::core::PCWSTR(1 as _),
865 IMAGE_ICON,
866 0,
867 0,
868 LR_DEFAULTSIZE | LR_SHARED,
869 )
870 .context("unable to load icon file")?
871 };
872 Ok(HICON(handle.0))
873}
874
875#[inline]
876fn should_auto_hide_scrollbars() -> Result<bool> {
877 let ui_settings = UISettings::new()?;
878 Ok(ui_settings.AutoHideScrollBars()?)
879}
880
881#[cfg(test)]
882mod tests {
883 use crate::{ClipboardItem, read_from_clipboard, write_to_clipboard};
884
885 #[test]
886 fn test_clipboard() {
887 let item = ClipboardItem::new_string("你好，我是张小白".to_string());
888 write_to_clipboard(item.clone());
889 assert_eq!(read_from_clipboard(), Some(item));
890
891 let item = ClipboardItem::new_string("12345".to_string());
892 write_to_clipboard(item.clone());
893 assert_eq!(read_from_clipboard(), Some(item));
894
895 let item = ClipboardItem::new_string_with_json_metadata("abcdef".to_string(), vec![3, 4]);
896 write_to_clipboard(item.clone());
897 assert_eq!(read_from_clipboard(), Some(item));
898 }
899}