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