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 false
438 }
439
440 #[cfg(feature = "screen-capture")]
441 fn screen_capture_sources(
442 &self,
443 ) -> oneshot::Receiver<Result<Vec<Box<dyn ScreenCaptureSource>>>> {
444 let (mut tx, rx) = oneshot::channel();
445 tx.send(Err(anyhow!("screen capture not implemented"))).ok();
446 rx
447 }
448
449 fn active_window(&self) -> Option<AnyWindowHandle> {
450 let active_window_hwnd = unsafe { GetActiveWindow() };
451 self.try_get_windows_inner_from_hwnd(active_window_hwnd)
452 .map(|inner| inner.handle)
453 }
454
455 fn open_window(
456 &self,
457 handle: AnyWindowHandle,
458 options: WindowParams,
459 ) -> Result<Box<dyn PlatformWindow>> {
460 let window = WindowsWindow::new(
461 handle,
462 options,
463 self.generate_creation_info(),
464 &self.gpu_context,
465 )?;
466 let handle = window.get_raw_handle();
467 self.raw_window_handles.write().push(handle);
468
469 Ok(Box::new(window))
470 }
471
472 fn window_appearance(&self) -> WindowAppearance {
473 system_appearance().log_err().unwrap_or_default()
474 }
475
476 fn open_url(&self, url: &str) {
477 let url_string = url.to_string();
478 self.background_executor()
479 .spawn(async move {
480 if url_string.is_empty() {
481 return;
482 }
483 open_target(url_string.as_str());
484 })
485 .detach();
486 }
487
488 fn on_open_urls(&self, callback: Box<dyn FnMut(Vec<String>)>) {
489 self.state.borrow_mut().callbacks.open_urls = Some(callback);
490 }
491
492 fn prompt_for_paths(
493 &self,
494 options: PathPromptOptions,
495 ) -> Receiver<Result<Option<Vec<PathBuf>>>> {
496 let (tx, rx) = oneshot::channel();
497 let window = self.find_current_active_window();
498 self.foreground_executor()
499 .spawn(async move {
500 let _ = tx.send(file_open_dialog(options, window));
501 })
502 .detach();
503
504 rx
505 }
506
507 fn prompt_for_new_path(&self, directory: &Path) -> Receiver<Result<Option<PathBuf>>> {
508 let directory = directory.to_owned();
509 let (tx, rx) = oneshot::channel();
510 let window = self.find_current_active_window();
511 self.foreground_executor()
512 .spawn(async move {
513 let _ = tx.send(file_save_dialog(directory, window));
514 })
515 .detach();
516
517 rx
518 }
519
520 fn can_select_mixed_files_and_dirs(&self) -> bool {
521 // The FOS_PICKFOLDERS flag toggles between "only files" and "only folders".
522 false
523 }
524
525 fn reveal_path(&self, path: &Path) {
526 let Ok(file_full_path) = path.canonicalize() else {
527 log::error!("unable to parse file path");
528 return;
529 };
530 self.background_executor()
531 .spawn(async move {
532 let Some(path) = file_full_path.to_str() else {
533 return;
534 };
535 if path.is_empty() {
536 return;
537 }
538 open_target_in_explorer(path);
539 })
540 .detach();
541 }
542
543 fn open_with_system(&self, path: &Path) {
544 let Ok(full_path) = path.canonicalize() else {
545 log::error!("unable to parse file full path: {}", path.display());
546 return;
547 };
548 self.background_executor()
549 .spawn(async move {
550 let Some(full_path_str) = full_path.to_str() else {
551 return;
552 };
553 if full_path_str.is_empty() {
554 return;
555 };
556 open_target(full_path_str);
557 })
558 .detach();
559 }
560
561 fn on_quit(&self, callback: Box<dyn FnMut()>) {
562 self.state.borrow_mut().callbacks.quit = Some(callback);
563 }
564
565 fn on_reopen(&self, callback: Box<dyn FnMut()>) {
566 self.state.borrow_mut().callbacks.reopen = Some(callback);
567 }
568
569 fn set_menus(&self, menus: Vec<Menu>, _keymap: &Keymap) {
570 self.state.borrow_mut().menus = menus.into_iter().map(|menu| menu.owned()).collect();
571 }
572
573 fn get_menus(&self) -> Option<Vec<OwnedMenu>> {
574 Some(self.state.borrow().menus.clone())
575 }
576
577 fn set_dock_menu(&self, menus: Vec<MenuItem>, _keymap: &Keymap) {
578 self.set_dock_menus(menus);
579 }
580
581 fn on_app_menu_action(&self, callback: Box<dyn FnMut(&dyn Action)>) {
582 self.state.borrow_mut().callbacks.app_menu_action = Some(callback);
583 }
584
585 fn on_will_open_app_menu(&self, callback: Box<dyn FnMut()>) {
586 self.state.borrow_mut().callbacks.will_open_app_menu = Some(callback);
587 }
588
589 fn on_validate_app_menu_command(&self, callback: Box<dyn FnMut(&dyn Action) -> bool>) {
590 self.state.borrow_mut().callbacks.validate_app_menu_command = Some(callback);
591 }
592
593 fn app_path(&self) -> Result<PathBuf> {
594 Ok(std::env::current_exe()?)
595 }
596
597 // todo(windows)
598 fn path_for_auxiliary_executable(&self, _name: &str) -> Result<PathBuf> {
599 anyhow::bail!("not yet implemented");
600 }
601
602 fn set_cursor_style(&self, style: CursorStyle) {
603 let hcursor = load_cursor(style);
604 let mut lock = self.state.borrow_mut();
605 if lock.current_cursor.map(|c| c.0) != hcursor.map(|c| c.0) {
606 self.post_message(
607 WM_GPUI_CURSOR_STYLE_CHANGED,
608 WPARAM(0),
609 LPARAM(hcursor.map_or(0, |c| c.0 as isize)),
610 );
611 lock.current_cursor = hcursor;
612 }
613 }
614
615 fn should_auto_hide_scrollbars(&self) -> bool {
616 should_auto_hide_scrollbars().log_err().unwrap_or(false)
617 }
618
619 fn write_to_clipboard(&self, item: ClipboardItem) {
620 write_to_clipboard(item);
621 }
622
623 fn read_from_clipboard(&self) -> Option<ClipboardItem> {
624 read_from_clipboard()
625 }
626
627 fn write_credentials(&self, url: &str, username: &str, password: &[u8]) -> Task<Result<()>> {
628 let mut password = password.to_vec();
629 let mut username = username.encode_utf16().chain(Some(0)).collect_vec();
630 let mut target_name = windows_credentials_target_name(url)
631 .encode_utf16()
632 .chain(Some(0))
633 .collect_vec();
634 self.foreground_executor().spawn(async move {
635 let credentials = CREDENTIALW {
636 LastWritten: unsafe { GetSystemTimeAsFileTime() },
637 Flags: CRED_FLAGS(0),
638 Type: CRED_TYPE_GENERIC,
639 TargetName: PWSTR::from_raw(target_name.as_mut_ptr()),
640 CredentialBlobSize: password.len() as u32,
641 CredentialBlob: password.as_ptr() as *mut _,
642 Persist: CRED_PERSIST_LOCAL_MACHINE,
643 UserName: PWSTR::from_raw(username.as_mut_ptr()),
644 ..CREDENTIALW::default()
645 };
646 unsafe { CredWriteW(&credentials, 0) }?;
647 Ok(())
648 })
649 }
650
651 fn read_credentials(&self, url: &str) -> Task<Result<Option<(String, Vec<u8>)>>> {
652 let mut target_name = windows_credentials_target_name(url)
653 .encode_utf16()
654 .chain(Some(0))
655 .collect_vec();
656 self.foreground_executor().spawn(async move {
657 let mut credentials: *mut CREDENTIALW = std::ptr::null_mut();
658 unsafe {
659 CredReadW(
660 PCWSTR::from_raw(target_name.as_ptr()),
661 CRED_TYPE_GENERIC,
662 None,
663 &mut credentials,
664 )?
665 };
666
667 if credentials.is_null() {
668 Ok(None)
669 } else {
670 let username: String = unsafe { (*credentials).UserName.to_string()? };
671 let credential_blob = unsafe {
672 std::slice::from_raw_parts(
673 (*credentials).CredentialBlob,
674 (*credentials).CredentialBlobSize as usize,
675 )
676 };
677 let password = credential_blob.to_vec();
678 unsafe { CredFree(credentials as *const _ as _) };
679 Ok(Some((username, password)))
680 }
681 })
682 }
683
684 fn delete_credentials(&self, url: &str) -> Task<Result<()>> {
685 let mut target_name = windows_credentials_target_name(url)
686 .encode_utf16()
687 .chain(Some(0))
688 .collect_vec();
689 self.foreground_executor().spawn(async move {
690 unsafe {
691 CredDeleteW(
692 PCWSTR::from_raw(target_name.as_ptr()),
693 CRED_TYPE_GENERIC,
694 None,
695 )?
696 };
697 Ok(())
698 })
699 }
700
701 fn register_url_scheme(&self, _: &str) -> Task<anyhow::Result<()>> {
702 Task::ready(Err(anyhow!("register_url_scheme unimplemented")))
703 }
704
705 fn perform_dock_menu_action(&self, action: usize) {
706 unsafe {
707 PostThreadMessageW(
708 self.main_thread_id_win32,
709 WM_GPUI_DOCK_MENU_ACTION,
710 WPARAM(self.validation_number),
711 LPARAM(action as isize),
712 )
713 .log_err();
714 }
715 }
716
717 fn update_jump_list(
718 &self,
719 menus: Vec<MenuItem>,
720 entries: Vec<SmallVec<[PathBuf; 2]>>,
721 ) -> Vec<SmallVec<[PathBuf; 2]>> {
722 self.update_jump_list(menus, entries)
723 }
724}
725
726impl Drop for WindowsPlatform {
727 fn drop(&mut self) {
728 unsafe {
729 ManuallyDrop::drop(&mut self.bitmap_factory);
730 OleUninitialize();
731 }
732 }
733}
734
735pub(crate) struct WindowCreationInfo {
736 pub(crate) icon: HICON,
737 pub(crate) executor: ForegroundExecutor,
738 pub(crate) current_cursor: Option<HCURSOR>,
739 pub(crate) windows_version: WindowsVersion,
740 pub(crate) drop_target_helper: IDropTargetHelper,
741 pub(crate) validation_number: usize,
742 pub(crate) main_receiver: flume::Receiver<Runnable>,
743 pub(crate) main_thread_id_win32: u32,
744}
745
746fn open_target(target: &str) {
747 unsafe {
748 let ret = ShellExecuteW(
749 None,
750 windows::core::w!("open"),
751 &HSTRING::from(target),
752 None,
753 None,
754 SW_SHOWDEFAULT,
755 );
756 if ret.0 as isize <= 32 {
757 log::error!("Unable to open target: {}", std::io::Error::last_os_error());
758 }
759 }
760}
761
762fn open_target_in_explorer(target: &str) {
763 unsafe {
764 let ret = ShellExecuteW(
765 None,
766 windows::core::w!("open"),
767 windows::core::w!("explorer.exe"),
768 &HSTRING::from(format!("/select,{}", target).as_str()),
769 None,
770 SW_SHOWDEFAULT,
771 );
772 if ret.0 as isize <= 32 {
773 log::error!(
774 "Unable to open target in explorer: {}",
775 std::io::Error::last_os_error()
776 );
777 }
778 }
779}
780
781fn file_open_dialog(
782 options: PathPromptOptions,
783 window: Option<HWND>,
784) -> Result<Option<Vec<PathBuf>>> {
785 let folder_dialog: IFileOpenDialog =
786 unsafe { CoCreateInstance(&FileOpenDialog, None, CLSCTX_ALL)? };
787
788 let mut dialog_options = FOS_FILEMUSTEXIST;
789 if options.multiple {
790 dialog_options |= FOS_ALLOWMULTISELECT;
791 }
792 if options.directories {
793 dialog_options |= FOS_PICKFOLDERS;
794 }
795
796 unsafe {
797 folder_dialog.SetOptions(dialog_options)?;
798 if folder_dialog.Show(window).is_err() {
799 // User cancelled
800 return Ok(None);
801 }
802 }
803
804 let results = unsafe { folder_dialog.GetResults()? };
805 let file_count = unsafe { results.GetCount()? };
806 if file_count == 0 {
807 return Ok(None);
808 }
809
810 let mut paths = Vec::with_capacity(file_count as usize);
811 for i in 0..file_count {
812 let item = unsafe { results.GetItemAt(i)? };
813 let path = unsafe { item.GetDisplayName(SIGDN_FILESYSPATH)?.to_string()? };
814 paths.push(PathBuf::from(path));
815 }
816
817 Ok(Some(paths))
818}
819
820fn file_save_dialog(directory: PathBuf, window: Option<HWND>) -> Result<Option<PathBuf>> {
821 let dialog: IFileSaveDialog = unsafe { CoCreateInstance(&FileSaveDialog, None, CLSCTX_ALL)? };
822 if !directory.to_string_lossy().is_empty() {
823 if let Some(full_path) = directory.canonicalize().log_err() {
824 let full_path = SanitizedPath::from(full_path);
825 let full_path_string = full_path.to_string();
826 let path_item: IShellItem =
827 unsafe { SHCreateItemFromParsingName(&HSTRING::from(full_path_string), None)? };
828 unsafe { dialog.SetFolder(&path_item).log_err() };
829 }
830 }
831 unsafe {
832 dialog.SetFileTypes(&[Common::COMDLG_FILTERSPEC {
833 pszName: windows::core::w!("All files"),
834 pszSpec: windows::core::w!("*.*"),
835 }])?;
836 if dialog.Show(window).is_err() {
837 // User cancelled
838 return Ok(None);
839 }
840 }
841 let shell_item = unsafe { dialog.GetResult()? };
842 let file_path_string = unsafe {
843 let pwstr = shell_item.GetDisplayName(SIGDN_FILESYSPATH)?;
844 let string = pwstr.to_string()?;
845 CoTaskMemFree(Some(pwstr.0 as _));
846 string
847 };
848 Ok(Some(PathBuf::from(file_path_string)))
849}
850
851fn begin_vsync(vsync_event: HANDLE) {
852 let event: SafeHandle = vsync_event.into();
853 std::thread::spawn(move || unsafe {
854 loop {
855 windows::Win32::Graphics::Dwm::DwmFlush().log_err();
856 SetEvent(*event).log_err();
857 }
858 });
859}
860
861fn load_icon() -> Result<HICON> {
862 let module = unsafe { GetModuleHandleW(None).context("unable to get module handle")? };
863 let handle = unsafe {
864 LoadImageW(
865 Some(module.into()),
866 windows::core::PCWSTR(1 as _),
867 IMAGE_ICON,
868 0,
869 0,
870 LR_DEFAULTSIZE | LR_SHARED,
871 )
872 .context("unable to load icon file")?
873 };
874 Ok(HICON(handle.0))
875}
876
877#[inline]
878fn should_auto_hide_scrollbars() -> Result<bool> {
879 let ui_settings = UISettings::new()?;
880 Ok(ui_settings.AutoHideScrollBars()?)
881}
882
883#[cfg(test)]
884mod tests {
885 use crate::{ClipboardItem, read_from_clipboard, write_to_clipboard};
886
887 #[test]
888 fn test_clipboard() {
889 let item = ClipboardItem::new_string("你好，我是张小白".to_string());
890 write_to_clipboard(item.clone());
891 assert_eq!(read_from_clipboard(), Some(item));
892
893 let item = ClipboardItem::new_string("12345".to_string());
894 write_to_clipboard(item.clone());
895 assert_eq!(read_from_clipboard(), Some(item));
896
897 let item = ClipboardItem::new_string_with_json_metadata("abcdef".to_string(), vec![3, 4]);
898 write_to_clipboard(item.clone());
899 assert_eq!(read_from_clipboard(), Some(item));
900 }
901}