1use super::{events::key_to_native, BoolExt};
2use crate::{
3 Action, AnyWindowHandle, BackgroundExecutor, ClipboardItem, CursorStyle, DisplayId,
4 ForegroundExecutor, Keymap, MacDispatcher, MacDisplay, MacTextSystem, MacWindow, Menu,
5 MenuItem, PathPromptOptions, Platform, PlatformDisplay, PlatformInput, PlatformTextSystem,
6 PlatformWindow, Result, SemanticVersion, Task, WindowAppearance, WindowOptions,
7};
8use anyhow::anyhow;
9use block::ConcreteBlock;
10use cocoa::{
11 appkit::{
12 NSApplication, NSApplicationActivationPolicy::NSApplicationActivationPolicyRegular,
13 NSEventModifierFlags, NSMenu, NSMenuItem, NSModalResponse, NSOpenPanel, NSPasteboard,
14 NSPasteboardTypeString, NSSavePanel, NSWindow,
15 },
16 base::{id, nil, selector, BOOL, YES},
17 foundation::{
18 NSArray, NSAutoreleasePool, NSBundle, NSData, NSInteger, NSProcessInfo, NSString,
19 NSUInteger, NSURL,
20 },
21};
22use core_foundation::{
23 base::{CFType, CFTypeRef, OSStatus, TCFType as _},
24 boolean::CFBoolean,
25 data::CFData,
26 dictionary::{CFDictionary, CFDictionaryRef, CFMutableDictionary},
27 string::{CFString, CFStringRef},
28};
29use ctor::ctor;
30use futures::channel::oneshot;
31use objc::{
32 class,
33 declare::ClassDecl,
34 msg_send,
35 runtime::{Class, Object, Sel},
36 sel, sel_impl,
37};
38use parking_lot::Mutex;
39use ptr::null_mut;
40use std::{
41 cell::Cell,
42 convert::TryInto,
43 ffi::{c_void, CStr, OsStr},
44 os::{raw::c_char, unix::ffi::OsStrExt},
45 path::{Path, PathBuf},
46 process::Command,
47 ptr,
48 rc::Rc,
49 slice, str,
50 sync::Arc,
51 time::Duration,
52};
53use time::UtcOffset;
54
55use super::renderer;
56
57#[allow(non_upper_case_globals)]
58const NSUTF8StringEncoding: NSUInteger = 4;
59
60const MAC_PLATFORM_IVAR: &str = "platform";
61static mut APP_CLASS: *const Class = ptr::null();
62static mut APP_DELEGATE_CLASS: *const Class = ptr::null();
63
64#[ctor]
65unsafe fn build_classes() {
66 APP_CLASS = {
67 let mut decl = ClassDecl::new("GPUIApplication", class!(NSApplication)).unwrap();
68 decl.add_ivar::<*mut c_void>(MAC_PLATFORM_IVAR);
69 decl.add_method(
70 sel!(sendEvent:),
71 send_event as extern "C" fn(&mut Object, Sel, id),
72 );
73 decl.register()
74 };
75
76 APP_DELEGATE_CLASS = {
77 let mut decl = ClassDecl::new("GPUIApplicationDelegate", class!(NSResponder)).unwrap();
78 decl.add_ivar::<*mut c_void>(MAC_PLATFORM_IVAR);
79 decl.add_method(
80 sel!(applicationDidFinishLaunching:),
81 did_finish_launching as extern "C" fn(&mut Object, Sel, id),
82 );
83 decl.add_method(
84 sel!(applicationShouldHandleReopen:hasVisibleWindows:),
85 should_handle_reopen as extern "C" fn(&mut Object, Sel, id, bool),
86 );
87 decl.add_method(
88 sel!(applicationDidBecomeActive:),
89 did_become_active as extern "C" fn(&mut Object, Sel, id),
90 );
91 decl.add_method(
92 sel!(applicationDidResignActive:),
93 did_resign_active as extern "C" fn(&mut Object, Sel, id),
94 );
95 decl.add_method(
96 sel!(applicationWillTerminate:),
97 will_terminate as extern "C" fn(&mut Object, Sel, id),
98 );
99 decl.add_method(
100 sel!(handleGPUIMenuItem:),
101 handle_menu_item as extern "C" fn(&mut Object, Sel, id),
102 );
103 // Add menu item handlers so that OS save panels have the correct key commands
104 decl.add_method(
105 sel!(cut:),
106 handle_menu_item as extern "C" fn(&mut Object, Sel, id),
107 );
108 decl.add_method(
109 sel!(copy:),
110 handle_menu_item as extern "C" fn(&mut Object, Sel, id),
111 );
112 decl.add_method(
113 sel!(paste:),
114 handle_menu_item as extern "C" fn(&mut Object, Sel, id),
115 );
116 decl.add_method(
117 sel!(selectAll:),
118 handle_menu_item as extern "C" fn(&mut Object, Sel, id),
119 );
120 decl.add_method(
121 sel!(undo:),
122 handle_menu_item as extern "C" fn(&mut Object, Sel, id),
123 );
124 decl.add_method(
125 sel!(redo:),
126 handle_menu_item as extern "C" fn(&mut Object, Sel, id),
127 );
128 decl.add_method(
129 sel!(validateMenuItem:),
130 validate_menu_item as extern "C" fn(&mut Object, Sel, id) -> bool,
131 );
132 decl.add_method(
133 sel!(menuWillOpen:),
134 menu_will_open as extern "C" fn(&mut Object, Sel, id),
135 );
136 decl.add_method(
137 sel!(application:openURLs:),
138 open_urls as extern "C" fn(&mut Object, Sel, id, id),
139 );
140 decl.register()
141 }
142}
143
144pub(crate) struct MacPlatform(Mutex<MacPlatformState>);
145
146pub(crate) struct MacPlatformState {
147 background_executor: BackgroundExecutor,
148 foreground_executor: ForegroundExecutor,
149 text_system: Arc<MacTextSystem>,
150 renderer_context: renderer::Context,
151 pasteboard: id,
152 text_hash_pasteboard_type: id,
153 metadata_pasteboard_type: id,
154 become_active: Option<Box<dyn FnMut()>>,
155 resign_active: Option<Box<dyn FnMut()>>,
156 reopen: Option<Box<dyn FnMut()>>,
157 quit: Option<Box<dyn FnMut()>>,
158 event: Option<Box<dyn FnMut(PlatformInput) -> bool>>,
159 menu_command: Option<Box<dyn FnMut(&dyn Action)>>,
160 validate_menu_command: Option<Box<dyn FnMut(&dyn Action) -> bool>>,
161 will_open_menu: Option<Box<dyn FnMut()>>,
162 menu_actions: Vec<Box<dyn Action>>,
163 open_urls: Option<Box<dyn FnMut(Vec<String>)>>,
164 finish_launching: Option<Box<dyn FnOnce()>>,
165}
166
167impl Default for MacPlatform {
168 fn default() -> Self {
169 Self::new()
170 }
171}
172
173impl MacPlatform {
174 pub(crate) fn new() -> Self {
175 let dispatcher = Arc::new(MacDispatcher::new());
176 Self(Mutex::new(MacPlatformState {
177 background_executor: BackgroundExecutor::new(dispatcher.clone()),
178 foreground_executor: ForegroundExecutor::new(dispatcher),
179 text_system: Arc::new(MacTextSystem::new()),
180 renderer_context: renderer::Context::default(),
181 pasteboard: unsafe { NSPasteboard::generalPasteboard(nil) },
182 text_hash_pasteboard_type: unsafe { ns_string("zed-text-hash") },
183 metadata_pasteboard_type: unsafe { ns_string("zed-metadata") },
184 become_active: None,
185 resign_active: None,
186 reopen: None,
187 quit: None,
188 event: None,
189 menu_command: None,
190 validate_menu_command: None,
191 will_open_menu: None,
192 menu_actions: Default::default(),
193 open_urls: None,
194 finish_launching: None,
195 }))
196 }
197
198 unsafe fn read_from_pasteboard(&self, pasteboard: *mut Object, kind: id) -> Option<&[u8]> {
199 let data = pasteboard.dataForType(kind);
200 if data == nil {
201 None
202 } else {
203 Some(slice::from_raw_parts(
204 data.bytes() as *mut u8,
205 data.length() as usize,
206 ))
207 }
208 }
209
210 unsafe fn create_menu_bar(
211 &self,
212 menus: Vec<Menu>,
213 delegate: id,
214 actions: &mut Vec<Box<dyn Action>>,
215 keymap: &Keymap,
216 ) -> id {
217 let application_menu = NSMenu::new(nil).autorelease();
218 application_menu.setDelegate_(delegate);
219
220 for menu_config in menus {
221 let menu = NSMenu::new(nil).autorelease();
222 menu.setTitle_(ns_string(menu_config.name));
223 menu.setDelegate_(delegate);
224
225 for item_config in menu_config.items {
226 menu.addItem_(Self::create_menu_item(
227 item_config,
228 delegate,
229 actions,
230 keymap,
231 ));
232 }
233
234 let menu_item = NSMenuItem::new(nil).autorelease();
235 menu_item.setSubmenu_(menu);
236 application_menu.addItem_(menu_item);
237
238 if menu_config.name == "Window" {
239 let app: id = msg_send![APP_CLASS, sharedApplication];
240 app.setWindowsMenu_(menu);
241 }
242 }
243
244 application_menu
245 }
246
247 unsafe fn create_menu_item(
248 item: MenuItem,
249 delegate: id,
250 actions: &mut Vec<Box<dyn Action>>,
251 keymap: &Keymap,
252 ) -> id {
253 match item {
254 MenuItem::Separator => NSMenuItem::separatorItem(nil),
255 MenuItem::Action {
256 name,
257 action,
258 os_action,
259 } => {
260 let keystrokes = keymap
261 .bindings_for_action(action.as_ref())
262 .next()
263 .map(|binding| binding.keystrokes());
264
265 let selector = match os_action {
266 Some(crate::OsAction::Cut) => selector("cut:"),
267 Some(crate::OsAction::Copy) => selector("copy:"),
268 Some(crate::OsAction::Paste) => selector("paste:"),
269 Some(crate::OsAction::SelectAll) => selector("selectAll:"),
270 Some(crate::OsAction::Undo) => selector("undo:"),
271 Some(crate::OsAction::Redo) => selector("redo:"),
272 None => selector("handleGPUIMenuItem:"),
273 };
274
275 let item;
276 if let Some(keystrokes) = keystrokes {
277 if keystrokes.len() == 1 {
278 let keystroke = &keystrokes[0];
279 let mut mask = NSEventModifierFlags::empty();
280 for (modifier, flag) in &[
281 (
282 keystroke.modifiers.command,
283 NSEventModifierFlags::NSCommandKeyMask,
284 ),
285 (
286 keystroke.modifiers.control,
287 NSEventModifierFlags::NSControlKeyMask,
288 ),
289 (
290 keystroke.modifiers.alt,
291 NSEventModifierFlags::NSAlternateKeyMask,
292 ),
293 (
294 keystroke.modifiers.shift,
295 NSEventModifierFlags::NSShiftKeyMask,
296 ),
297 ] {
298 if *modifier {
299 mask |= *flag;
300 }
301 }
302
303 item = NSMenuItem::alloc(nil)
304 .initWithTitle_action_keyEquivalent_(
305 ns_string(name),
306 selector,
307 ns_string(key_to_native(&keystroke.key).as_ref()),
308 )
309 .autorelease();
310 item.setKeyEquivalentModifierMask_(mask);
311 }
312 // For multi-keystroke bindings, render the keystroke as part of the title.
313 else {
314 use std::fmt::Write;
315
316 let mut name = format!("{name} [");
317 for (i, keystroke) in keystrokes.iter().enumerate() {
318 if i > 0 {
319 name.push(' ');
320 }
321 write!(&mut name, "{}", keystroke).unwrap();
322 }
323 name.push(']');
324
325 item = NSMenuItem::alloc(nil)
326 .initWithTitle_action_keyEquivalent_(
327 ns_string(&name),
328 selector,
329 ns_string(""),
330 )
331 .autorelease();
332 }
333 } else {
334 item = NSMenuItem::alloc(nil)
335 .initWithTitle_action_keyEquivalent_(
336 ns_string(name),
337 selector,
338 ns_string(""),
339 )
340 .autorelease();
341 }
342
343 let tag = actions.len() as NSInteger;
344 let _: () = msg_send![item, setTag: tag];
345 actions.push(action);
346 item
347 }
348 MenuItem::Submenu(Menu { name, items }) => {
349 let item = NSMenuItem::new(nil).autorelease();
350 let submenu = NSMenu::new(nil).autorelease();
351 submenu.setDelegate_(delegate);
352 for item in items {
353 submenu.addItem_(Self::create_menu_item(item, delegate, actions, keymap));
354 }
355 item.setSubmenu_(submenu);
356 item.setTitle_(ns_string(name));
357 item
358 }
359 }
360 }
361}
362
363impl Platform for MacPlatform {
364 fn background_executor(&self) -> BackgroundExecutor {
365 self.0.lock().background_executor.clone()
366 }
367
368 fn foreground_executor(&self) -> crate::ForegroundExecutor {
369 self.0.lock().foreground_executor.clone()
370 }
371
372 fn text_system(&self) -> Arc<dyn PlatformTextSystem> {
373 self.0.lock().text_system.clone()
374 }
375
376 fn run(&self, on_finish_launching: Box<dyn FnOnce()>) {
377 self.0.lock().finish_launching = Some(on_finish_launching);
378
379 unsafe {
380 let app: id = msg_send![APP_CLASS, sharedApplication];
381 let app_delegate: id = msg_send![APP_DELEGATE_CLASS, new];
382 app.setDelegate_(app_delegate);
383
384 let self_ptr = self as *const Self as *const c_void;
385 (*app).set_ivar(MAC_PLATFORM_IVAR, self_ptr);
386 (*app_delegate).set_ivar(MAC_PLATFORM_IVAR, self_ptr);
387
388 let pool = NSAutoreleasePool::new(nil);
389 app.run();
390 pool.drain();
391
392 (*app).set_ivar(MAC_PLATFORM_IVAR, null_mut::<c_void>());
393 (*app.delegate()).set_ivar(MAC_PLATFORM_IVAR, null_mut::<c_void>());
394 }
395 }
396
397 fn quit(&self) {
398 // Quitting the app causes us to close windows, which invokes `Window::on_close` callbacks
399 // synchronously before this method terminates. If we call `Platform::quit` while holding a
400 // borrow of the app state (which most of the time we will do), we will end up
401 // double-borrowing the app state in the `on_close` callbacks for our open windows. To solve
402 // this, we make quitting the application asynchronous so that we aren't holding borrows to
403 // the app state on the stack when we actually terminate the app.
404
405 use super::dispatcher::{dispatch_get_main_queue, dispatch_sys::dispatch_async_f};
406
407 unsafe {
408 dispatch_async_f(dispatch_get_main_queue(), ptr::null_mut(), Some(quit));
409 }
410
411 unsafe extern "C" fn quit(_: *mut c_void) {
412 let app = NSApplication::sharedApplication(nil);
413 let _: () = msg_send![app, terminate: nil];
414 }
415 }
416
417 fn restart(&self) {
418 use std::os::unix::process::CommandExt as _;
419
420 let app_pid = std::process::id().to_string();
421 let app_path = self
422 .app_path()
423 .ok()
424 // When the app is not bundled, `app_path` returns the
425 // directory containing the executable. Disregard this
426 // and get the path to the executable itself.
427 .and_then(|path| (path.extension()?.to_str()? == "app").then_some(path))
428 .unwrap_or_else(|| std::env::current_exe().unwrap());
429
430 // Wait until this process has exited and then re-open this path.
431 let script = r#"
432 while kill -0 $0 2> /dev/null; do
433 sleep 0.1
434 done
435 open "$1"
436 "#;
437
438 let restart_process = Command::new("/bin/bash")
439 .arg("-c")
440 .arg(script)
441 .arg(app_pid)
442 .arg(app_path)
443 .process_group(0)
444 .spawn();
445
446 match restart_process {
447 Ok(_) => self.quit(),
448 Err(e) => log::error!("failed to spawn restart script: {:?}", e),
449 }
450 }
451
452 fn activate(&self, ignoring_other_apps: bool) {
453 unsafe {
454 let app = NSApplication::sharedApplication(nil);
455 app.activateIgnoringOtherApps_(ignoring_other_apps.to_objc());
456 }
457 }
458
459 fn hide(&self) {
460 unsafe {
461 let app = NSApplication::sharedApplication(nil);
462 let _: () = msg_send![app, hide: nil];
463 }
464 }
465
466 fn hide_other_apps(&self) {
467 unsafe {
468 let app = NSApplication::sharedApplication(nil);
469 let _: () = msg_send![app, hideOtherApplications: nil];
470 }
471 }
472
473 fn unhide_other_apps(&self) {
474 unsafe {
475 let app = NSApplication::sharedApplication(nil);
476 let _: () = msg_send![app, unhideAllApplications: nil];
477 }
478 }
479
480 fn displays(&self) -> Vec<Rc<dyn PlatformDisplay>> {
481 MacDisplay::all()
482 .map(|screen| Rc::new(screen) as Rc<_>)
483 .collect()
484 }
485
486 fn display(&self, id: DisplayId) -> Option<Rc<dyn PlatformDisplay>> {
487 MacDisplay::find_by_id(id).map(|screen| Rc::new(screen) as Rc<_>)
488 }
489
490 fn active_window(&self) -> Option<AnyWindowHandle> {
491 MacWindow::active_window()
492 }
493
494 fn open_window(
495 &self,
496 handle: AnyWindowHandle,
497 options: WindowOptions,
498 ) -> Box<dyn PlatformWindow> {
499 Box::new(MacWindow::open(
500 handle,
501 options,
502 self.foreground_executor(),
503 self.0.lock().renderer_context.clone(),
504 ))
505 }
506
507 fn window_appearance(&self) -> WindowAppearance {
508 unsafe {
509 let app = NSApplication::sharedApplication(nil);
510 let appearance: id = msg_send![app, effectiveAppearance];
511 WindowAppearance::from_native(appearance)
512 }
513 }
514
515 fn open_url(&self, url: &str) {
516 unsafe {
517 let url = NSURL::alloc(nil)
518 .initWithString_(ns_string(url))
519 .autorelease();
520 let workspace: id = msg_send![class!(NSWorkspace), sharedWorkspace];
521 msg_send![workspace, openURL: url]
522 }
523 }
524
525 fn on_open_urls(&self, callback: Box<dyn FnMut(Vec<String>)>) {
526 self.0.lock().open_urls = Some(callback);
527 }
528
529 fn prompt_for_paths(
530 &self,
531 options: PathPromptOptions,
532 ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
533 let (done_tx, done_rx) = oneshot::channel();
534 self.foreground_executor()
535 .spawn(async move {
536 unsafe {
537 let panel = NSOpenPanel::openPanel(nil);
538 panel.setCanChooseDirectories_(options.directories.to_objc());
539 panel.setCanChooseFiles_(options.files.to_objc());
540 panel.setAllowsMultipleSelection_(options.multiple.to_objc());
541 panel.setResolvesAliases_(false.to_objc());
542 let done_tx = Cell::new(Some(done_tx));
543 let block = ConcreteBlock::new(move |response: NSModalResponse| {
544 let result = if response == NSModalResponse::NSModalResponseOk {
545 let mut result = Vec::new();
546 let urls = panel.URLs();
547 for i in 0..urls.count() {
548 let url = urls.objectAtIndex(i);
549 if url.isFileURL() == YES {
550 if let Ok(path) = ns_url_to_path(url) {
551 result.push(path)
552 }
553 }
554 }
555 Some(result)
556 } else {
557 None
558 };
559
560 if let Some(done_tx) = done_tx.take() {
561 let _ = done_tx.send(result);
562 }
563 });
564 let block = block.copy();
565 let _: () = msg_send![panel, beginWithCompletionHandler: block];
566 }
567 })
568 .detach();
569 done_rx
570 }
571
572 fn prompt_for_new_path(&self, directory: &Path) -> oneshot::Receiver<Option<PathBuf>> {
573 let directory = directory.to_owned();
574 let (done_tx, done_rx) = oneshot::channel();
575 self.foreground_executor()
576 .spawn(async move {
577 unsafe {
578 let panel = NSSavePanel::savePanel(nil);
579 let path = ns_string(directory.to_string_lossy().as_ref());
580 let url = NSURL::fileURLWithPath_isDirectory_(nil, path, true.to_objc());
581 panel.setDirectoryURL(url);
582
583 let done_tx = Cell::new(Some(done_tx));
584 let block = ConcreteBlock::new(move |response: NSModalResponse| {
585 let mut result = None;
586 if response == NSModalResponse::NSModalResponseOk {
587 let url = panel.URL();
588 if url.isFileURL() == YES {
589 result = ns_url_to_path(panel.URL()).ok()
590 }
591 }
592
593 if let Some(done_tx) = done_tx.take() {
594 let _ = done_tx.send(result);
595 }
596 });
597 let block = block.copy();
598 let _: () = msg_send![panel, beginWithCompletionHandler: block];
599 }
600 })
601 .detach();
602
603 done_rx
604 }
605
606 fn reveal_path(&self, path: &Path) {
607 unsafe {
608 let path = path.to_path_buf();
609 self.0
610 .lock()
611 .background_executor
612 .spawn(async move {
613 let full_path = ns_string(path.to_str().unwrap_or(""));
614 let root_full_path = ns_string("");
615 let workspace: id = msg_send![class!(NSWorkspace), sharedWorkspace];
616 let _: BOOL = msg_send![
617 workspace,
618 selectFile: full_path
619 inFileViewerRootedAtPath: root_full_path
620 ];
621 })
622 .detach();
623 }
624 }
625
626 fn on_become_active(&self, callback: Box<dyn FnMut()>) {
627 self.0.lock().become_active = Some(callback);
628 }
629
630 fn on_resign_active(&self, callback: Box<dyn FnMut()>) {
631 self.0.lock().resign_active = Some(callback);
632 }
633
634 fn on_quit(&self, callback: Box<dyn FnMut()>) {
635 self.0.lock().quit = Some(callback);
636 }
637
638 fn on_reopen(&self, callback: Box<dyn FnMut()>) {
639 self.0.lock().reopen = Some(callback);
640 }
641
642 fn on_event(&self, callback: Box<dyn FnMut(PlatformInput) -> bool>) {
643 self.0.lock().event = Some(callback);
644 }
645
646 fn on_app_menu_action(&self, callback: Box<dyn FnMut(&dyn Action)>) {
647 self.0.lock().menu_command = Some(callback);
648 }
649
650 fn on_will_open_app_menu(&self, callback: Box<dyn FnMut()>) {
651 self.0.lock().will_open_menu = Some(callback);
652 }
653
654 fn on_validate_app_menu_command(&self, callback: Box<dyn FnMut(&dyn Action) -> bool>) {
655 self.0.lock().validate_menu_command = Some(callback);
656 }
657
658 fn os_name(&self) -> &'static str {
659 "macOS"
660 }
661
662 fn double_click_interval(&self) -> Duration {
663 unsafe {
664 let double_click_interval: f64 = msg_send![class!(NSEvent), doubleClickInterval];
665 Duration::from_secs_f64(double_click_interval)
666 }
667 }
668
669 fn os_version(&self) -> Result<SemanticVersion> {
670 unsafe {
671 let process_info = NSProcessInfo::processInfo(nil);
672 let version = process_info.operatingSystemVersion();
673 Ok(SemanticVersion {
674 major: version.majorVersion as usize,
675 minor: version.minorVersion as usize,
676 patch: version.patchVersion as usize,
677 })
678 }
679 }
680
681 fn app_version(&self) -> Result<SemanticVersion> {
682 unsafe {
683 let bundle: id = NSBundle::mainBundle();
684 if bundle.is_null() {
685 Err(anyhow!("app is not running inside a bundle"))
686 } else {
687 let version: id = msg_send![bundle, objectForInfoDictionaryKey: ns_string("CFBundleShortVersionString")];
688 let len = msg_send![version, lengthOfBytesUsingEncoding: NSUTF8StringEncoding];
689 let bytes = version.UTF8String() as *const u8;
690 let version = str::from_utf8(slice::from_raw_parts(bytes, len)).unwrap();
691 version.parse()
692 }
693 }
694 }
695
696 fn app_path(&self) -> Result<PathBuf> {
697 unsafe {
698 let bundle: id = NSBundle::mainBundle();
699 if bundle.is_null() {
700 Err(anyhow!("app is not running inside a bundle"))
701 } else {
702 Ok(path_from_objc(msg_send![bundle, bundlePath]))
703 }
704 }
705 }
706
707 fn set_menus(&self, menus: Vec<Menu>, keymap: &Keymap) {
708 unsafe {
709 let app: id = msg_send![APP_CLASS, sharedApplication];
710 let mut state = self.0.lock();
711 let actions = &mut state.menu_actions;
712 app.setMainMenu_(self.create_menu_bar(menus, app.delegate(), actions, keymap));
713 }
714 }
715
716 fn local_timezone(&self) -> UtcOffset {
717 unsafe {
718 let local_timezone: id = msg_send![class!(NSTimeZone), localTimeZone];
719 let seconds_from_gmt: NSInteger = msg_send![local_timezone, secondsFromGMT];
720 UtcOffset::from_whole_seconds(seconds_from_gmt.try_into().unwrap()).unwrap()
721 }
722 }
723
724 fn path_for_auxiliary_executable(&self, name: &str) -> Result<PathBuf> {
725 unsafe {
726 let bundle: id = NSBundle::mainBundle();
727 if bundle.is_null() {
728 Err(anyhow!("app is not running inside a bundle"))
729 } else {
730 let name = ns_string(name);
731 let url: id = msg_send![bundle, URLForAuxiliaryExecutable: name];
732 if url.is_null() {
733 Err(anyhow!("resource not found"))
734 } else {
735 ns_url_to_path(url)
736 }
737 }
738 }
739 }
740
741 /// Match cursor style to one of the styles available
742 /// in macOS's [NSCursor](https://developer.apple.com/documentation/appkit/nscursor).
743 fn set_cursor_style(&self, style: CursorStyle) {
744 unsafe {
745 let new_cursor: id = match style {
746 CursorStyle::Arrow => msg_send![class!(NSCursor), arrowCursor],
747 CursorStyle::IBeam => msg_send![class!(NSCursor), IBeamCursor],
748 CursorStyle::Crosshair => msg_send![class!(NSCursor), crosshairCursor],
749 CursorStyle::ClosedHand => msg_send![class!(NSCursor), closedHandCursor],
750 CursorStyle::OpenHand => msg_send![class!(NSCursor), openHandCursor],
751 CursorStyle::PointingHand => msg_send![class!(NSCursor), pointingHandCursor],
752 CursorStyle::ResizeLeft => msg_send![class!(NSCursor), resizeLeftCursor],
753 CursorStyle::ResizeRight => msg_send![class!(NSCursor), resizeRightCursor],
754 CursorStyle::ResizeLeftRight => msg_send![class!(NSCursor), resizeLeftRightCursor],
755 CursorStyle::ResizeUp => msg_send![class!(NSCursor), resizeUpCursor],
756 CursorStyle::ResizeDown => msg_send![class!(NSCursor), resizeDownCursor],
757 CursorStyle::ResizeUpDown => msg_send![class!(NSCursor), resizeUpDownCursor],
758 CursorStyle::DisappearingItem => {
759 msg_send![class!(NSCursor), disappearingItemCursor]
760 }
761 CursorStyle::IBeamCursorForVerticalLayout => {
762 msg_send![class!(NSCursor), IBeamCursorForVerticalLayout]
763 }
764 CursorStyle::OperationNotAllowed => {
765 msg_send![class!(NSCursor), operationNotAllowedCursor]
766 }
767 CursorStyle::DragLink => msg_send![class!(NSCursor), dragLinkCursor],
768 CursorStyle::DragCopy => msg_send![class!(NSCursor), dragCopyCursor],
769 CursorStyle::ContextualMenu => msg_send![class!(NSCursor), contextualMenuCursor],
770 };
771
772 let old_cursor: id = msg_send![class!(NSCursor), currentCursor];
773 if new_cursor != old_cursor {
774 let _: () = msg_send![new_cursor, set];
775 }
776 }
777 }
778
779 fn should_auto_hide_scrollbars(&self) -> bool {
780 #[allow(non_upper_case_globals)]
781 const NSScrollerStyleOverlay: NSInteger = 1;
782
783 unsafe {
784 let style: NSInteger = msg_send![class!(NSScroller), preferredScrollerStyle];
785 style == NSScrollerStyleOverlay
786 }
787 }
788
789 fn write_to_clipboard(&self, item: ClipboardItem) {
790 let state = self.0.lock();
791 unsafe {
792 state.pasteboard.clearContents();
793
794 let text_bytes = NSData::dataWithBytes_length_(
795 nil,
796 item.text.as_ptr() as *const c_void,
797 item.text.len() as u64,
798 );
799 state
800 .pasteboard
801 .setData_forType(text_bytes, NSPasteboardTypeString);
802
803 if let Some(metadata) = item.metadata.as_ref() {
804 let hash_bytes = ClipboardItem::text_hash(&item.text).to_be_bytes();
805 let hash_bytes = NSData::dataWithBytes_length_(
806 nil,
807 hash_bytes.as_ptr() as *const c_void,
808 hash_bytes.len() as u64,
809 );
810 state
811 .pasteboard
812 .setData_forType(hash_bytes, state.text_hash_pasteboard_type);
813
814 let metadata_bytes = NSData::dataWithBytes_length_(
815 nil,
816 metadata.as_ptr() as *const c_void,
817 metadata.len() as u64,
818 );
819 state
820 .pasteboard
821 .setData_forType(metadata_bytes, state.metadata_pasteboard_type);
822 }
823 }
824 }
825
826 fn read_from_clipboard(&self) -> Option<ClipboardItem> {
827 let state = self.0.lock();
828 unsafe {
829 if let Some(text_bytes) =
830 self.read_from_pasteboard(state.pasteboard, NSPasteboardTypeString)
831 {
832 let text = String::from_utf8_lossy(text_bytes).to_string();
833 let hash_bytes = self
834 .read_from_pasteboard(state.pasteboard, state.text_hash_pasteboard_type)
835 .and_then(|bytes| bytes.try_into().ok())
836 .map(u64::from_be_bytes);
837 let metadata_bytes = self
838 .read_from_pasteboard(state.pasteboard, state.metadata_pasteboard_type)
839 .and_then(|bytes| String::from_utf8(bytes.to_vec()).ok());
840
841 if let Some((hash, metadata)) = hash_bytes.zip(metadata_bytes) {
842 if hash == ClipboardItem::text_hash(&text) {
843 Some(ClipboardItem {
844 text,
845 metadata: Some(metadata),
846 })
847 } else {
848 Some(ClipboardItem {
849 text,
850 metadata: None,
851 })
852 }
853 } else {
854 Some(ClipboardItem {
855 text,
856 metadata: None,
857 })
858 }
859 } else {
860 None
861 }
862 }
863 }
864
865 fn write_credentials(&self, url: &str, username: &str, password: &[u8]) -> Task<Result<()>> {
866 let url = url.to_string();
867 let username = username.to_string();
868 let password = password.to_vec();
869 self.background_executor().spawn(async move {
870 unsafe {
871 use security::*;
872
873 let url = CFString::from(url.as_str());
874 let username = CFString::from(username.as_str());
875 let password = CFData::from_buffer(&password);
876
877 // First, check if there are already credentials for the given server. If so, then
878 // update the username and password.
879 let mut verb = "updating";
880 let mut query_attrs = CFMutableDictionary::with_capacity(2);
881 query_attrs.set(kSecClass as *const _, kSecClassInternetPassword as *const _);
882 query_attrs.set(kSecAttrServer as *const _, url.as_CFTypeRef());
883
884 let mut attrs = CFMutableDictionary::with_capacity(4);
885 attrs.set(kSecClass as *const _, kSecClassInternetPassword as *const _);
886 attrs.set(kSecAttrServer as *const _, url.as_CFTypeRef());
887 attrs.set(kSecAttrAccount as *const _, username.as_CFTypeRef());
888 attrs.set(kSecValueData as *const _, password.as_CFTypeRef());
889
890 let mut status = SecItemUpdate(
891 query_attrs.as_concrete_TypeRef(),
892 attrs.as_concrete_TypeRef(),
893 );
894
895 // If there were no existing credentials for the given server, then create them.
896 if status == errSecItemNotFound {
897 verb = "creating";
898 status = SecItemAdd(attrs.as_concrete_TypeRef(), ptr::null_mut());
899 }
900
901 if status != errSecSuccess {
902 return Err(anyhow!("{} password failed: {}", verb, status));
903 }
904 }
905 Ok(())
906 })
907 }
908
909 fn read_credentials(&self, url: &str) -> Task<Result<Option<(String, Vec<u8>)>>> {
910 let url = url.to_string();
911 self.background_executor().spawn(async move {
912 let url = CFString::from(url.as_str());
913 let cf_true = CFBoolean::true_value().as_CFTypeRef();
914
915 unsafe {
916 use security::*;
917
918 // Find any credentials for the given server URL.
919 let mut attrs = CFMutableDictionary::with_capacity(5);
920 attrs.set(kSecClass as *const _, kSecClassInternetPassword as *const _);
921 attrs.set(kSecAttrServer as *const _, url.as_CFTypeRef());
922 attrs.set(kSecReturnAttributes as *const _, cf_true);
923 attrs.set(kSecReturnData as *const _, cf_true);
924
925 let mut result = CFTypeRef::from(ptr::null());
926 let status = SecItemCopyMatching(attrs.as_concrete_TypeRef(), &mut result);
927 match status {
928 security::errSecSuccess => {}
929 security::errSecItemNotFound | security::errSecUserCanceled => return Ok(None),
930 _ => return Err(anyhow!("reading password failed: {}", status)),
931 }
932
933 let result = CFType::wrap_under_create_rule(result)
934 .downcast::<CFDictionary>()
935 .ok_or_else(|| anyhow!("keychain item was not a dictionary"))?;
936 let username = result
937 .find(kSecAttrAccount as *const _)
938 .ok_or_else(|| anyhow!("account was missing from keychain item"))?;
939 let username = CFType::wrap_under_get_rule(*username)
940 .downcast::<CFString>()
941 .ok_or_else(|| anyhow!("account was not a string"))?;
942 let password = result
943 .find(kSecValueData as *const _)
944 .ok_or_else(|| anyhow!("password was missing from keychain item"))?;
945 let password = CFType::wrap_under_get_rule(*password)
946 .downcast::<CFData>()
947 .ok_or_else(|| anyhow!("password was not a string"))?;
948
949 Ok(Some((username.to_string(), password.bytes().to_vec())))
950 }
951 })
952 }
953
954 fn delete_credentials(&self, url: &str) -> Task<Result<()>> {
955 let url = url.to_string();
956
957 self.background_executor().spawn(async move {
958 unsafe {
959 use security::*;
960
961 let url = CFString::from(url.as_str());
962 let mut query_attrs = CFMutableDictionary::with_capacity(2);
963 query_attrs.set(kSecClass as *const _, kSecClassInternetPassword as *const _);
964 query_attrs.set(kSecAttrServer as *const _, url.as_CFTypeRef());
965
966 let status = SecItemDelete(query_attrs.as_concrete_TypeRef());
967
968 if status != errSecSuccess {
969 return Err(anyhow!("delete password failed: {}", status));
970 }
971 }
972 Ok(())
973 })
974 }
975}
976
977unsafe fn path_from_objc(path: id) -> PathBuf {
978 let len = msg_send![path, lengthOfBytesUsingEncoding: NSUTF8StringEncoding];
979 let bytes = path.UTF8String() as *const u8;
980 let path = str::from_utf8(slice::from_raw_parts(bytes, len)).unwrap();
981 PathBuf::from(path)
982}
983
984unsafe fn get_mac_platform(object: &mut Object) -> &MacPlatform {
985 let platform_ptr: *mut c_void = *object.get_ivar(MAC_PLATFORM_IVAR);
986 assert!(!platform_ptr.is_null());
987 &*(platform_ptr as *const MacPlatform)
988}
989
990extern "C" fn send_event(this: &mut Object, _sel: Sel, native_event: id) {
991 unsafe {
992 if let Some(event) = PlatformInput::from_native(native_event, None) {
993 let platform = get_mac_platform(this);
994 let mut lock = platform.0.lock();
995 if let Some(mut callback) = lock.event.take() {
996 drop(lock);
997 let result = callback(event);
998 platform.0.lock().event.get_or_insert(callback);
999 if !result {
1000 return;
1001 }
1002 }
1003 }
1004 msg_send![super(this, class!(NSApplication)), sendEvent: native_event]
1005 }
1006}
1007
1008extern "C" fn did_finish_launching(this: &mut Object, _: Sel, _: id) {
1009 unsafe {
1010 let app: id = msg_send![APP_CLASS, sharedApplication];
1011 app.setActivationPolicy_(NSApplicationActivationPolicyRegular);
1012
1013 let platform = get_mac_platform(this);
1014 let callback = platform.0.lock().finish_launching.take();
1015 if let Some(callback) = callback {
1016 callback();
1017 }
1018 }
1019}
1020
1021extern "C" fn should_handle_reopen(this: &mut Object, _: Sel, _: id, has_open_windows: bool) {
1022 if !has_open_windows {
1023 let platform = unsafe { get_mac_platform(this) };
1024 let mut lock = platform.0.lock();
1025 if let Some(mut callback) = lock.reopen.take() {
1026 drop(lock);
1027 callback();
1028 platform.0.lock().reopen.get_or_insert(callback);
1029 }
1030 }
1031}
1032
1033extern "C" fn did_become_active(this: &mut Object, _: Sel, _: id) {
1034 let platform = unsafe { get_mac_platform(this) };
1035 let mut lock = platform.0.lock();
1036 if let Some(mut callback) = lock.become_active.take() {
1037 drop(lock);
1038 callback();
1039 platform.0.lock().become_active.get_or_insert(callback);
1040 }
1041}
1042
1043extern "C" fn did_resign_active(this: &mut Object, _: Sel, _: id) {
1044 let platform = unsafe { get_mac_platform(this) };
1045 let mut lock = platform.0.lock();
1046 if let Some(mut callback) = lock.resign_active.take() {
1047 drop(lock);
1048 callback();
1049 platform.0.lock().resign_active.get_or_insert(callback);
1050 }
1051}
1052
1053extern "C" fn will_terminate(this: &mut Object, _: Sel, _: id) {
1054 let platform = unsafe { get_mac_platform(this) };
1055 let mut lock = platform.0.lock();
1056 if let Some(mut callback) = lock.quit.take() {
1057 drop(lock);
1058 callback();
1059 platform.0.lock().quit.get_or_insert(callback);
1060 }
1061}
1062
1063extern "C" fn open_urls(this: &mut Object, _: Sel, _: id, urls: id) {
1064 let urls = unsafe {
1065 (0..urls.count())
1066 .filter_map(|i| {
1067 let url = urls.objectAtIndex(i);
1068 match CStr::from_ptr(url.absoluteString().UTF8String() as *mut c_char).to_str() {
1069 Ok(string) => Some(string.to_string()),
1070 Err(err) => {
1071 log::error!("error converting path to string: {}", err);
1072 None
1073 }
1074 }
1075 })
1076 .collect::<Vec<_>>()
1077 };
1078 let platform = unsafe { get_mac_platform(this) };
1079 let mut lock = platform.0.lock();
1080 if let Some(mut callback) = lock.open_urls.take() {
1081 drop(lock);
1082 callback(urls);
1083 platform.0.lock().open_urls.get_or_insert(callback);
1084 }
1085}
1086
1087extern "C" fn handle_menu_item(this: &mut Object, _: Sel, item: id) {
1088 unsafe {
1089 let platform = get_mac_platform(this);
1090 let mut lock = platform.0.lock();
1091 if let Some(mut callback) = lock.menu_command.take() {
1092 let tag: NSInteger = msg_send![item, tag];
1093 let index = tag as usize;
1094 if let Some(action) = lock.menu_actions.get(index) {
1095 let action = action.boxed_clone();
1096 drop(lock);
1097 callback(&*action);
1098 }
1099 platform.0.lock().menu_command.get_or_insert(callback);
1100 }
1101 }
1102}
1103
1104extern "C" fn validate_menu_item(this: &mut Object, _: Sel, item: id) -> bool {
1105 unsafe {
1106 let mut result = false;
1107 let platform = get_mac_platform(this);
1108 let mut lock = platform.0.lock();
1109 if let Some(mut callback) = lock.validate_menu_command.take() {
1110 let tag: NSInteger = msg_send![item, tag];
1111 let index = tag as usize;
1112 if let Some(action) = lock.menu_actions.get(index) {
1113 let action = action.boxed_clone();
1114 drop(lock);
1115 result = callback(action.as_ref());
1116 }
1117 platform
1118 .0
1119 .lock()
1120 .validate_menu_command
1121 .get_or_insert(callback);
1122 }
1123 result
1124 }
1125}
1126
1127extern "C" fn menu_will_open(this: &mut Object, _: Sel, _: id) {
1128 unsafe {
1129 let platform = get_mac_platform(this);
1130 let mut lock = platform.0.lock();
1131 if let Some(mut callback) = lock.will_open_menu.take() {
1132 drop(lock);
1133 callback();
1134 platform.0.lock().will_open_menu.get_or_insert(callback);
1135 }
1136 }
1137}
1138
1139unsafe fn ns_string(string: &str) -> id {
1140 NSString::alloc(nil).init_str(string).autorelease()
1141}
1142
1143unsafe fn ns_url_to_path(url: id) -> Result<PathBuf> {
1144 let path: *mut c_char = msg_send![url, fileSystemRepresentation];
1145 if path.is_null() {
1146 Err(anyhow!(
1147 "url is not a file path: {}",
1148 CStr::from_ptr(url.absoluteString().UTF8String()).to_string_lossy()
1149 ))
1150 } else {
1151 Ok(PathBuf::from(OsStr::from_bytes(
1152 CStr::from_ptr(path).to_bytes(),
1153 )))
1154 }
1155}
1156
1157mod security {
1158 #![allow(non_upper_case_globals)]
1159 use super::*;
1160
1161 #[link(name = "Security", kind = "framework")]
1162 extern "C" {
1163 pub static kSecClass: CFStringRef;
1164 pub static kSecClassInternetPassword: CFStringRef;
1165 pub static kSecAttrServer: CFStringRef;
1166 pub static kSecAttrAccount: CFStringRef;
1167 pub static kSecValueData: CFStringRef;
1168 pub static kSecReturnAttributes: CFStringRef;
1169 pub static kSecReturnData: CFStringRef;
1170
1171 pub fn SecItemAdd(attributes: CFDictionaryRef, result: *mut CFTypeRef) -> OSStatus;
1172 pub fn SecItemUpdate(query: CFDictionaryRef, attributes: CFDictionaryRef) -> OSStatus;
1173 pub fn SecItemDelete(query: CFDictionaryRef) -> OSStatus;
1174 pub fn SecItemCopyMatching(query: CFDictionaryRef, result: *mut CFTypeRef) -> OSStatus;
1175 }
1176
1177 pub const errSecSuccess: OSStatus = 0;
1178 pub const errSecUserCanceled: OSStatus = -128;
1179 pub const errSecItemNotFound: OSStatus = -25300;
1180}
1181
1182#[cfg(test)]
1183mod tests {
1184 use crate::ClipboardItem;
1185
1186 use super::*;
1187
1188 #[test]
1189 fn test_clipboard() {
1190 let platform = build_platform();
1191 assert_eq!(platform.read_from_clipboard(), None);
1192
1193 let item = ClipboardItem::new("1".to_string());
1194 platform.write_to_clipboard(item.clone());
1195 assert_eq!(platform.read_from_clipboard(), Some(item));
1196
1197 let item = ClipboardItem::new("2".to_string()).with_metadata(vec![3, 4]);
1198 platform.write_to_clipboard(item.clone());
1199 assert_eq!(platform.read_from_clipboard(), Some(item));
1200
1201 let text_from_other_app = "text from other app";
1202 unsafe {
1203 let bytes = NSData::dataWithBytes_length_(
1204 nil,
1205 text_from_other_app.as_ptr() as *const c_void,
1206 text_from_other_app.len() as u64,
1207 );
1208 platform
1209 .0
1210 .lock()
1211 .pasteboard
1212 .setData_forType(bytes, NSPasteboardTypeString);
1213 }
1214 assert_eq!(
1215 platform.read_from_clipboard(),
1216 Some(ClipboardItem::new(text_from_other_app.to_string()))
1217 );
1218 }
1219
1220 fn build_platform() -> MacPlatform {
1221 let platform = MacPlatform::new();
1222 platform.0.lock().pasteboard = unsafe { NSPasteboard::pasteboardWithUniqueName(nil) };
1223 platform
1224 }
1225}