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::*;
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 directx_devices: DirectXDevices,
39 icon: HICON,
40 main_receiver: flume::Receiver<Runnable>,
41 background_executor: BackgroundExecutor,
42 foreground_executor: ForegroundExecutor,
43 text_system: Arc<DirectWriteTextSystem>,
44 windows_version: WindowsVersion,
45 bitmap_factory: ManuallyDrop<IWICImagingFactory>,
46 drop_target_helper: IDropTargetHelper,
47 validation_number: usize,
48 main_thread_id_win32: u32,
49}
50
51pub(crate) struct WindowsPlatformState {
52 callbacks: PlatformCallbacks,
53 menus: Vec<OwnedMenu>,
54 jump_list: JumpList,
55 // NOTE: standard cursor handles don't need to close.
56 pub(crate) current_cursor: Option<HCURSOR>,
57}
58
59#[derive(Default)]
60struct PlatformCallbacks {
61 open_urls: Option<Box<dyn FnMut(Vec<String>)>>,
62 quit: Option<Box<dyn FnMut()>>,
63 reopen: Option<Box<dyn FnMut()>>,
64 app_menu_action: Option<Box<dyn FnMut(&dyn Action)>>,
65 will_open_app_menu: Option<Box<dyn FnMut()>>,
66 validate_app_menu_command: Option<Box<dyn FnMut(&dyn Action) -> bool>>,
67 keyboard_layout_change: Option<Box<dyn FnMut()>>,
68}
69
70impl WindowsPlatformState {
71 fn new() -> Self {
72 let callbacks = PlatformCallbacks::default();
73 let jump_list = JumpList::new();
74 let current_cursor = load_cursor(CursorStyle::Arrow);
75
76 Self {
77 callbacks,
78 jump_list,
79 current_cursor,
80 menus: Vec::new(),
81 }
82 }
83}
84
85impl WindowsPlatform {
86 pub(crate) fn new() -> Result<Self> {
87 unsafe {
88 OleInitialize(None).context("unable to initialize Windows OLE")?;
89 }
90 let (main_sender, main_receiver) = flume::unbounded::<Runnable>();
91 let main_thread_id_win32 = unsafe { GetCurrentThreadId() };
92 let validation_number = rand::random::<usize>();
93 let dispatcher = Arc::new(WindowsDispatcher::new(
94 main_sender,
95 main_thread_id_win32,
96 validation_number,
97 ));
98 let background_executor = BackgroundExecutor::new(dispatcher.clone());
99 let foreground_executor = ForegroundExecutor::new(dispatcher);
100 let bitmap_factory = ManuallyDrop::new(unsafe {
101 CoCreateInstance(&CLSID_WICImagingFactory, None, CLSCTX_INPROC_SERVER)
102 .context("Error creating bitmap factory.")?
103 });
104 let text_system = Arc::new(
105 DirectWriteTextSystem::new(&bitmap_factory)
106 .context("Error creating DirectWriteTextSystem")?,
107 );
108 let drop_target_helper: IDropTargetHelper = unsafe {
109 CoCreateInstance(&CLSID_DragDropHelper, None, CLSCTX_INPROC_SERVER)
110 .context("Error creating drop target helper.")?
111 };
112 let icon = load_icon().unwrap_or_default();
113 let state = RefCell::new(WindowsPlatformState::new());
114 let raw_window_handles = RwLock::new(SmallVec::new());
115 // let gpu_context = BladeContext::new().context("Unable to init GPU context")?;
116 let directx_devices = DirectXDevices::new().context("Unable to init directx devices.")?;
117 let windows_version = WindowsVersion::new().context("Error retrieve windows version")?;
118
119 Ok(Self {
120 state,
121 raw_window_handles,
122 directx_devices,
123 icon,
124 main_receiver,
125 background_executor,
126 foreground_executor,
127 text_system,
128 windows_version,
129 bitmap_factory,
130 drop_target_helper,
131 validation_number,
132 main_thread_id_win32,
133 })
134 }
135
136 fn redraw_all(&self) {
137 for handle in self.raw_window_handles.read().iter() {
138 unsafe {
139 RedrawWindow(Some(*handle), None, None, RDW_INVALIDATE | RDW_UPDATENOW)
140 .ok()
141 .log_err();
142 }
143 }
144 }
145
146 pub fn try_get_windows_inner_from_hwnd(&self, hwnd: HWND) -> Option<Rc<WindowsWindowStatePtr>> {
147 self.raw_window_handles
148 .read()
149 .iter()
150 .find(|entry| *entry == &hwnd)
151 .and_then(|hwnd| try_get_window_inner(*hwnd))
152 }
153
154 #[inline]
155 fn post_message(&self, message: u32, wparam: WPARAM, lparam: LPARAM) {
156 self.raw_window_handles
157 .read()
158 .iter()
159 .for_each(|handle| unsafe {
160 PostMessageW(Some(*handle), message, wparam, lparam).log_err();
161 });
162 }
163
164 fn close_one_window(&self, target_window: HWND) -> bool {
165 let mut lock = self.raw_window_handles.write();
166 let index = lock
167 .iter()
168 .position(|handle| *handle == target_window)
169 .unwrap();
170 lock.remove(index);
171
172 lock.is_empty()
173 }
174
175 #[inline]
176 fn run_foreground_task(&self) {
177 for runnable in self.main_receiver.drain() {
178 runnable.run();
179 }
180 }
181
182 fn generate_creation_info(&self) -> WindowCreationInfo {
183 WindowCreationInfo {
184 icon: self.icon,
185 executor: self.foreground_executor.clone(),
186 current_cursor: self.state.borrow().current_cursor,
187 windows_version: self.windows_version,
188 drop_target_helper: self.drop_target_helper.clone(),
189 validation_number: self.validation_number,
190 main_receiver: self.main_receiver.clone(),
191 main_thread_id_win32: self.main_thread_id_win32,
192 }
193 }
194
195 fn handle_dock_action_event(&self, action_idx: usize) {
196 let mut lock = self.state.borrow_mut();
197 if let Some(mut callback) = lock.callbacks.app_menu_action.take() {
198 let Some(action) = lock
199 .jump_list
200 .dock_menus
201 .get(action_idx)
202 .map(|dock_menu| dock_menu.action.boxed_clone())
203 else {
204 lock.callbacks.app_menu_action = Some(callback);
205 log::error!("Dock menu for index {action_idx} not found");
206 return;
207 };
208 drop(lock);
209 callback(&*action);
210 self.state.borrow_mut().callbacks.app_menu_action = Some(callback);
211 }
212 }
213
214 fn handle_input_lang_change(&self) {
215 let mut lock = self.state.borrow_mut();
216 if let Some(mut callback) = lock.callbacks.keyboard_layout_change.take() {
217 drop(lock);
218 callback();
219 self.state
220 .borrow_mut()
221 .callbacks
222 .keyboard_layout_change
223 .get_or_insert(callback);
224 }
225 }
226
227 // Returns true if the app should quit.
228 fn handle_events(&self) -> bool {
229 let mut msg = MSG::default();
230 unsafe {
231 while PeekMessageW(&mut msg, None, 0, 0, PM_REMOVE).as_bool() {
232 match msg.message {
233 WM_QUIT => return true,
234 WM_INPUTLANGCHANGE
235 | WM_GPUI_CLOSE_ONE_WINDOW
236 | WM_GPUI_TASK_DISPATCHED_ON_MAIN_THREAD
237 | WM_GPUI_DOCK_MENU_ACTION => {
238 if self.handle_gpui_evnets(msg.message, msg.wParam, msg.lParam, &msg) {
239 return true;
240 }
241 }
242 _ => {
243 DispatchMessageW(&msg);
244 }
245 }
246 }
247 }
248 false
249 }
250
251 // Returns true if the app should quit.
252 fn handle_gpui_evnets(
253 &self,
254 message: u32,
255 wparam: WPARAM,
256 lparam: LPARAM,
257 msg: *const MSG,
258 ) -> bool {
259 if wparam.0 != self.validation_number {
260 unsafe { DispatchMessageW(msg) };
261 return false;
262 }
263 match message {
264 WM_GPUI_CLOSE_ONE_WINDOW => {
265 if self.close_one_window(HWND(lparam.0 as _)) {
266 return true;
267 }
268 }
269 WM_GPUI_TASK_DISPATCHED_ON_MAIN_THREAD => self.run_foreground_task(),
270 WM_GPUI_DOCK_MENU_ACTION => self.handle_dock_action_event(lparam.0 as _),
271 WM_INPUTLANGCHANGE => self.handle_input_lang_change(),
272 _ => unreachable!(),
273 }
274 false
275 }
276
277 fn set_dock_menus(&self, menus: Vec<MenuItem>) {
278 let mut actions = Vec::new();
279 menus.into_iter().for_each(|menu| {
280 if let Some(dock_menu) = DockMenuItem::new(menu).log_err() {
281 actions.push(dock_menu);
282 }
283 });
284 let mut lock = self.state.borrow_mut();
285 lock.jump_list.dock_menus = actions;
286 update_jump_list(&lock.jump_list).log_err();
287 }
288
289 fn update_jump_list(
290 &self,
291 menus: Vec<MenuItem>,
292 entries: Vec<SmallVec<[PathBuf; 2]>>,
293 ) -> Vec<SmallVec<[PathBuf; 2]>> {
294 let mut actions = Vec::new();
295 menus.into_iter().for_each(|menu| {
296 if let Some(dock_menu) = DockMenuItem::new(menu).log_err() {
297 actions.push(dock_menu);
298 }
299 });
300 let mut lock = self.state.borrow_mut();
301 lock.jump_list.dock_menus = actions;
302 lock.jump_list.recent_workspaces = entries;
303 update_jump_list(&lock.jump_list)
304 .log_err()
305 .unwrap_or_default()
306 }
307
308 fn find_current_active_window(&self) -> Option<HWND> {
309 let active_window_hwnd = unsafe { GetActiveWindow() };
310 if active_window_hwnd.is_invalid() {
311 return None;
312 }
313 self.raw_window_handles
314 .read()
315 .iter()
316 .find(|&&hwnd| hwnd == active_window_hwnd)
317 .copied()
318 }
319}
320
321impl Platform for WindowsPlatform {
322 fn background_executor(&self) -> BackgroundExecutor {
323 self.background_executor.clone()
324 }
325
326 fn foreground_executor(&self) -> ForegroundExecutor {
327 self.foreground_executor.clone()
328 }
329
330 fn text_system(&self) -> Arc<dyn PlatformTextSystem> {
331 self.text_system.clone()
332 }
333
334 fn keyboard_layout(&self) -> Box<dyn PlatformKeyboardLayout> {
335 Box::new(
336 WindowsKeyboardLayout::new()
337 .log_err()
338 .unwrap_or(WindowsKeyboardLayout::unknown()),
339 )
340 }
341
342 fn on_keyboard_layout_change(&self, callback: Box<dyn FnMut()>) {
343 self.state.borrow_mut().callbacks.keyboard_layout_change = Some(callback);
344 }
345
346 fn run(&self, on_finish_launching: Box<dyn 'static + FnOnce()>) {
347 on_finish_launching();
348 let vsync_event = unsafe { Owned::new(CreateEventW(None, false, false, None).unwrap()) };
349 begin_vsync(*vsync_event);
350 'a: loop {
351 let wait_result = unsafe {
352 MsgWaitForMultipleObjects(Some(&[*vsync_event]), false, INFINITE, QS_ALLINPUT)
353 };
354
355 match wait_result {
356 // compositor clock ticked so we should draw a frame
357 WAIT_EVENT(0) => self.redraw_all(),
358 // Windows thread messages are posted
359 WAIT_EVENT(1) => {
360 if self.handle_events() {
361 break 'a;
362 }
363 }
364 _ => {
365 log::error!("Something went wrong while waiting {:?}", wait_result);
366 break;
367 }
368 }
369 }
370
371 if let Some(ref mut callback) = self.state.borrow_mut().callbacks.quit {
372 callback();
373 }
374 }
375
376 fn quit(&self) {
377 self.foreground_executor()
378 .spawn(async { unsafe { PostQuitMessage(0) } })
379 .detach();
380 }
381
382 fn restart(&self, _: Option<PathBuf>) {
383 let pid = std::process::id();
384 let Some(app_path) = self.app_path().log_err() else {
385 return;
386 };
387 let script = format!(
388 r#"
389 $pidToWaitFor = {}
390 $exePath = "{}"
391
392 while ($true) {{
393 $process = Get-Process -Id $pidToWaitFor -ErrorAction SilentlyContinue
394 if (-not $process) {{
395 Start-Process -FilePath $exePath
396 break
397 }}
398 Start-Sleep -Seconds 0.1
399 }}
400 "#,
401 pid,
402 app_path.display(),
403 );
404 let restart_process = util::command::new_std_command("powershell.exe")
405 .arg("-command")
406 .arg(script)
407 .spawn();
408
409 match restart_process {
410 Ok(_) => self.quit(),
411 Err(e) => log::error!("failed to spawn restart script: {:?}", e),
412 }
413 }
414
415 fn activate(&self, _ignoring_other_apps: bool) {}
416
417 fn hide(&self) {}
418
419 // todo(windows)
420 fn hide_other_apps(&self) {
421 unimplemented!()
422 }
423
424 // todo(windows)
425 fn unhide_other_apps(&self) {
426 unimplemented!()
427 }
428
429 fn displays(&self) -> Vec<Rc<dyn PlatformDisplay>> {
430 WindowsDisplay::displays()
431 }
432
433 fn primary_display(&self) -> Option<Rc<dyn PlatformDisplay>> {
434 WindowsDisplay::primary_monitor().map(|display| Rc::new(display) as Rc<dyn PlatformDisplay>)
435 }
436
437 #[cfg(feature = "screen-capture")]
438 fn is_screen_capture_supported(&self) -> bool {
439 true
440 }
441
442 #[cfg(feature = "screen-capture")]
443 fn screen_capture_sources(
444 &self,
445 ) -> oneshot::Receiver<Result<Vec<Rc<dyn ScreenCaptureSource>>>> {
446 crate::platform::scap_screen_capture::scap_screen_sources(&self.foreground_executor)
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.directx_devices,
465 )
466 .inspect_err(|err| show_error("Failed to open new window", err.to_string()))?;
467 let handle = window.get_raw_handle();
468 self.raw_window_handles.write().push(handle);
469
470 Ok(Box::new(window))
471 }
472
473 fn window_appearance(&self) -> WindowAppearance {
474 system_appearance().log_err().unwrap_or_default()
475 }
476
477 fn open_url(&self, url: &str) {
478 let url_string = url.to_string();
479 self.background_executor()
480 .spawn(async move {
481 if url_string.is_empty() {
482 return;
483 }
484 open_target(url_string.as_str());
485 })
486 .detach();
487 }
488
489 fn on_open_urls(&self, callback: Box<dyn FnMut(Vec<String>)>) {
490 self.state.borrow_mut().callbacks.open_urls = Some(callback);
491 }
492
493 fn prompt_for_paths(
494 &self,
495 options: PathPromptOptions,
496 ) -> Receiver<Result<Option<Vec<PathBuf>>>> {
497 let (tx, rx) = oneshot::channel();
498 let window = self.find_current_active_window();
499 self.foreground_executor()
500 .spawn(async move {
501 let _ = tx.send(file_open_dialog(options, window));
502 })
503 .detach();
504
505 rx
506 }
507
508 fn prompt_for_new_path(&self, directory: &Path) -> Receiver<Result<Option<PathBuf>>> {
509 let directory = directory.to_owned();
510 let (tx, rx) = oneshot::channel();
511 let window = self.find_current_active_window();
512 self.foreground_executor()
513 .spawn(async move {
514 let _ = tx.send(file_save_dialog(directory, window));
515 })
516 .detach();
517
518 rx
519 }
520
521 fn can_select_mixed_files_and_dirs(&self) -> bool {
522 // The FOS_PICKFOLDERS flag toggles between "only files" and "only folders".
523 false
524 }
525
526 fn reveal_path(&self, path: &Path) {
527 let Ok(file_full_path) = path.canonicalize() else {
528 log::error!("unable to parse file path");
529 return;
530 };
531 self.background_executor()
532 .spawn(async move {
533 let Some(path) = file_full_path.to_str() else {
534 return;
535 };
536 if path.is_empty() {
537 return;
538 }
539 open_target_in_explorer(path);
540 })
541 .detach();
542 }
543
544 fn open_with_system(&self, path: &Path) {
545 let Ok(full_path) = path.canonicalize() else {
546 log::error!("unable to parse file full path: {}", path.display());
547 return;
548 };
549 self.background_executor()
550 .spawn(async move {
551 let Some(full_path_str) = full_path.to_str() else {
552 return;
553 };
554 if full_path_str.is_empty() {
555 return;
556 };
557 open_target(full_path_str);
558 })
559 .detach();
560 }
561
562 fn on_quit(&self, callback: Box<dyn FnMut()>) {
563 self.state.borrow_mut().callbacks.quit = Some(callback);
564 }
565
566 fn on_reopen(&self, callback: Box<dyn FnMut()>) {
567 self.state.borrow_mut().callbacks.reopen = Some(callback);
568 }
569
570 fn set_menus(&self, menus: Vec<Menu>, _keymap: &Keymap) {
571 self.state.borrow_mut().menus = menus.into_iter().map(|menu| menu.owned()).collect();
572 }
573
574 fn get_menus(&self) -> Option<Vec<OwnedMenu>> {
575 Some(self.state.borrow().menus.clone())
576 }
577
578 fn set_dock_menu(&self, menus: Vec<MenuItem>, _keymap: &Keymap) {
579 self.set_dock_menus(menus);
580 }
581
582 fn on_app_menu_action(&self, callback: Box<dyn FnMut(&dyn Action)>) {
583 self.state.borrow_mut().callbacks.app_menu_action = Some(callback);
584 }
585
586 fn on_will_open_app_menu(&self, callback: Box<dyn FnMut()>) {
587 self.state.borrow_mut().callbacks.will_open_app_menu = Some(callback);
588 }
589
590 fn on_validate_app_menu_command(&self, callback: Box<dyn FnMut(&dyn Action) -> bool>) {
591 self.state.borrow_mut().callbacks.validate_app_menu_command = Some(callback);
592 }
593
594 fn app_path(&self) -> Result<PathBuf> {
595 Ok(std::env::current_exe()?)
596 }
597
598 // todo(windows)
599 fn path_for_auxiliary_executable(&self, _name: &str) -> Result<PathBuf> {
600 anyhow::bail!("not yet implemented");
601 }
602
603 fn set_cursor_style(&self, style: CursorStyle) {
604 let hcursor = load_cursor(style);
605 let mut lock = self.state.borrow_mut();
606 if lock.current_cursor.map(|c| c.0) != hcursor.map(|c| c.0) {
607 self.post_message(
608 WM_GPUI_CURSOR_STYLE_CHANGED,
609 WPARAM(0),
610 LPARAM(hcursor.map_or(0, |c| c.0 as isize)),
611 );
612 lock.current_cursor = hcursor;
613 }
614 }
615
616 fn should_auto_hide_scrollbars(&self) -> bool {
617 should_auto_hide_scrollbars().log_err().unwrap_or(false)
618 }
619
620 fn write_to_clipboard(&self, item: ClipboardItem) {
621 write_to_clipboard(item);
622 }
623
624 fn read_from_clipboard(&self) -> Option<ClipboardItem> {
625 read_from_clipboard()
626 }
627
628 fn write_credentials(&self, url: &str, username: &str, password: &[u8]) -> Task<Result<()>> {
629 let mut password = password.to_vec();
630 let mut username = username.encode_utf16().chain(Some(0)).collect_vec();
631 let mut target_name = windows_credentials_target_name(url)
632 .encode_utf16()
633 .chain(Some(0))
634 .collect_vec();
635 self.foreground_executor().spawn(async move {
636 let credentials = CREDENTIALW {
637 LastWritten: unsafe { GetSystemTimeAsFileTime() },
638 Flags: CRED_FLAGS(0),
639 Type: CRED_TYPE_GENERIC,
640 TargetName: PWSTR::from_raw(target_name.as_mut_ptr()),
641 CredentialBlobSize: password.len() as u32,
642 CredentialBlob: password.as_ptr() as *mut _,
643 Persist: CRED_PERSIST_LOCAL_MACHINE,
644 UserName: PWSTR::from_raw(username.as_mut_ptr()),
645 ..CREDENTIALW::default()
646 };
647 unsafe { CredWriteW(&credentials, 0) }?;
648 Ok(())
649 })
650 }
651
652 fn read_credentials(&self, url: &str) -> Task<Result<Option<(String, Vec<u8>)>>> {
653 let mut target_name = windows_credentials_target_name(url)
654 .encode_utf16()
655 .chain(Some(0))
656 .collect_vec();
657 self.foreground_executor().spawn(async move {
658 let mut credentials: *mut CREDENTIALW = std::ptr::null_mut();
659 unsafe {
660 CredReadW(
661 PCWSTR::from_raw(target_name.as_ptr()),
662 CRED_TYPE_GENERIC,
663 None,
664 &mut credentials,
665 )?
666 };
667
668 if credentials.is_null() {
669 Ok(None)
670 } else {
671 let username: String = unsafe { (*credentials).UserName.to_string()? };
672 let credential_blob = unsafe {
673 std::slice::from_raw_parts(
674 (*credentials).CredentialBlob,
675 (*credentials).CredentialBlobSize as usize,
676 )
677 };
678 let password = credential_blob.to_vec();
679 unsafe { CredFree(credentials as *const _ as _) };
680 Ok(Some((username, password)))
681 }
682 })
683 }
684
685 fn delete_credentials(&self, url: &str) -> Task<Result<()>> {
686 let mut target_name = windows_credentials_target_name(url)
687 .encode_utf16()
688 .chain(Some(0))
689 .collect_vec();
690 self.foreground_executor().spawn(async move {
691 unsafe {
692 CredDeleteW(
693 PCWSTR::from_raw(target_name.as_ptr()),
694 CRED_TYPE_GENERIC,
695 None,
696 )?
697 };
698 Ok(())
699 })
700 }
701
702 fn register_url_scheme(&self, _: &str) -> Task<anyhow::Result<()>> {
703 Task::ready(Err(anyhow!("register_url_scheme unimplemented")))
704 }
705
706 fn perform_dock_menu_action(&self, action: usize) {
707 unsafe {
708 PostThreadMessageW(
709 self.main_thread_id_win32,
710 WM_GPUI_DOCK_MENU_ACTION,
711 WPARAM(self.validation_number),
712 LPARAM(action as isize),
713 )
714 .log_err();
715 }
716 }
717
718 fn update_jump_list(
719 &self,
720 menus: Vec<MenuItem>,
721 entries: Vec<SmallVec<[PathBuf; 2]>>,
722 ) -> Vec<SmallVec<[PathBuf; 2]>> {
723 self.update_jump_list(menus, entries)
724 }
725}
726
727impl Drop for WindowsPlatform {
728 fn drop(&mut self) {
729 unsafe {
730 ManuallyDrop::drop(&mut self.bitmap_factory);
731 OleUninitialize();
732 }
733 }
734}
735
736pub(crate) struct WindowCreationInfo {
737 pub(crate) icon: HICON,
738 pub(crate) executor: ForegroundExecutor,
739 pub(crate) current_cursor: Option<HCURSOR>,
740 pub(crate) windows_version: WindowsVersion,
741 pub(crate) drop_target_helper: IDropTargetHelper,
742 pub(crate) validation_number: usize,
743 pub(crate) main_receiver: flume::Receiver<Runnable>,
744 pub(crate) main_thread_id_win32: u32,
745}
746
747fn open_target(target: &str) {
748 unsafe {
749 let ret = ShellExecuteW(
750 None,
751 windows::core::w!("open"),
752 &HSTRING::from(target),
753 None,
754 None,
755 SW_SHOWDEFAULT,
756 );
757 if ret.0 as isize <= 32 {
758 log::error!("Unable to open target: {}", std::io::Error::last_os_error());
759 }
760 }
761}
762
763fn open_target_in_explorer(target: &str) {
764 unsafe {
765 let ret = ShellExecuteW(
766 None,
767 windows::core::w!("open"),
768 windows::core::w!("explorer.exe"),
769 &HSTRING::from(format!("/select,{}", target).as_str()),
770 None,
771 SW_SHOWDEFAULT,
772 );
773 if ret.0 as isize <= 32 {
774 log::error!(
775 "Unable to open target in explorer: {}",
776 std::io::Error::last_os_error()
777 );
778 }
779 }
780}
781
782fn file_open_dialog(
783 options: PathPromptOptions,
784 window: Option<HWND>,
785) -> Result<Option<Vec<PathBuf>>> {
786 let folder_dialog: IFileOpenDialog =
787 unsafe { CoCreateInstance(&FileOpenDialog, None, CLSCTX_ALL)? };
788
789 let mut dialog_options = FOS_FILEMUSTEXIST;
790 if options.multiple {
791 dialog_options |= FOS_ALLOWMULTISELECT;
792 }
793 if options.directories {
794 dialog_options |= FOS_PICKFOLDERS;
795 }
796
797 unsafe {
798 folder_dialog.SetOptions(dialog_options)?;
799 if folder_dialog.Show(window).is_err() {
800 // User cancelled
801 return Ok(None);
802 }
803 }
804
805 let results = unsafe { folder_dialog.GetResults()? };
806 let file_count = unsafe { results.GetCount()? };
807 if file_count == 0 {
808 return Ok(None);
809 }
810
811 let mut paths = Vec::with_capacity(file_count as usize);
812 for i in 0..file_count {
813 let item = unsafe { results.GetItemAt(i)? };
814 let path = unsafe { item.GetDisplayName(SIGDN_FILESYSPATH)?.to_string()? };
815 paths.push(PathBuf::from(path));
816 }
817
818 Ok(Some(paths))
819}
820
821fn file_save_dialog(directory: PathBuf, window: Option<HWND>) -> Result<Option<PathBuf>> {
822 let dialog: IFileSaveDialog = unsafe { CoCreateInstance(&FileSaveDialog, None, CLSCTX_ALL)? };
823 if !directory.to_string_lossy().is_empty() {
824 if let Some(full_path) = directory.canonicalize().log_err() {
825 let full_path = SanitizedPath::from(full_path);
826 let full_path_string = full_path.to_string();
827 let path_item: IShellItem =
828 unsafe { SHCreateItemFromParsingName(&HSTRING::from(full_path_string), None)? };
829 unsafe { dialog.SetFolder(&path_item).log_err() };
830 }
831 }
832 unsafe {
833 dialog.SetFileTypes(&[Common::COMDLG_FILTERSPEC {
834 pszName: windows::core::w!("All files"),
835 pszSpec: windows::core::w!("*.*"),
836 }])?;
837 if dialog.Show(window).is_err() {
838 // User cancelled
839 return Ok(None);
840 }
841 }
842 let shell_item = unsafe { dialog.GetResult()? };
843 let file_path_string = unsafe {
844 let pwstr = shell_item.GetDisplayName(SIGDN_FILESYSPATH)?;
845 let string = pwstr.to_string()?;
846 CoTaskMemFree(Some(pwstr.0 as _));
847 string
848 };
849 Ok(Some(PathBuf::from(file_path_string)))
850}
851
852fn begin_vsync(vsync_event: HANDLE) {
853 let event: SafeHandle = vsync_event.into();
854 std::thread::spawn(move || unsafe {
855 loop {
856 windows::Win32::Graphics::Dwm::DwmFlush().log_err();
857 SetEvent(*event).log_err();
858 }
859 });
860}
861
862fn load_icon() -> Result<HICON> {
863 let module = unsafe { GetModuleHandleW(None).context("unable to get module handle")? };
864 let handle = unsafe {
865 LoadImageW(
866 Some(module.into()),
867 windows::core::PCWSTR(1 as _),
868 IMAGE_ICON,
869 0,
870 0,
871 LR_DEFAULTSIZE | LR_SHARED,
872 )
873 .context("unable to load icon file")?
874 };
875 Ok(HICON(handle.0))
876}
877
878#[inline]
879fn should_auto_hide_scrollbars() -> Result<bool> {
880 let ui_settings = UISettings::new()?;
881 Ok(ui_settings.AutoHideScrollBars()?)
882}
883
884#[cfg(test)]
885mod tests {
886 use crate::{ClipboardItem, read_from_clipboard, write_to_clipboard};
887
888 #[test]
889 fn test_clipboard() {
890 let item = ClipboardItem::new_string("你好，我是张小白".to_string());
891 write_to_clipboard(item.clone());
892 assert_eq!(read_from_clipboard(), Some(item));
893
894 let item = ClipboardItem::new_string("12345".to_string());
895 write_to_clipboard(item.clone());
896 assert_eq!(read_from_clipboard(), Some(item));
897
898 let item = ClipboardItem::new_string_with_json_metadata("abcdef".to_string(), vec![3, 4]);
899 write_to_clipboard(item.clone());
900 assert_eq!(read_from_clipboard(), Some(item));
901 }
902}