1use super::{BoolExt, MacDisplay, NSRange, NSStringExt, ns_string, renderer};
2use crate::{
3 AnyWindowHandle, Bounds, Capslock, DisplayLink, ExternalPaths, FileDropEvent,
4 ForegroundExecutor, KeyDownEvent, Keystroke, Modifiers, ModifiersChangedEvent, MouseButton,
5 MouseDownEvent, MouseMoveEvent, MouseUpEvent, Pixels, PlatformAtlas, PlatformDisplay,
6 PlatformInput, PlatformWindow, Point, PromptButton, PromptLevel, RequestFrameOptions,
7 SharedString, Size, SystemWindowTab, Timer, WindowAppearance, WindowBackgroundAppearance,
8 WindowBounds, WindowControlArea, WindowKind, WindowParams, dispatch_get_main_queue,
9 dispatch_sys::dispatch_async_f, platform::PlatformInputHandler, point, px, size,
10};
11use block::ConcreteBlock;
12use cocoa::{
13 appkit::{
14 NSAppKitVersionNumber, NSAppKitVersionNumber12_0, NSApplication, NSBackingStoreBuffered,
15 NSColor, NSEvent, NSEventModifierFlags, NSFilenamesPboardType, NSPasteboard, NSScreen,
16 NSView, NSViewHeightSizable, NSViewWidthSizable, NSVisualEffectMaterial,
17 NSVisualEffectState, NSVisualEffectView, NSWindow, NSWindowButton,
18 NSWindowCollectionBehavior, NSWindowOcclusionState, NSWindowOrderingMode,
19 NSWindowStyleMask, NSWindowTitleVisibility,
20 },
21 base::{id, nil},
22 foundation::{
23 NSArray, NSAutoreleasePool, NSDictionary, NSFastEnumeration, NSInteger, NSNotFound,
24 NSOperatingSystemVersion, NSPoint, NSProcessInfo, NSRect, NSSize, NSString, NSUInteger,
25 NSUserDefaults,
26 },
27};
28
29use core_graphics::display::{CGDirectDisplayID, CGPoint, CGRect};
30use ctor::ctor;
31use futures::channel::oneshot;
32use objc::{
33 class,
34 declare::ClassDecl,
35 msg_send,
36 runtime::{BOOL, Class, NO, Object, Protocol, Sel, YES},
37 sel, sel_impl,
38};
39use parking_lot::Mutex;
40use raw_window_handle as rwh;
41use smallvec::SmallVec;
42use std::{
43 cell::Cell,
44 ffi::{CStr, c_void},
45 mem,
46 ops::Range,
47 path::PathBuf,
48 ptr::{self, NonNull},
49 rc::Rc,
50 sync::{Arc, Weak},
51 time::Duration,
52};
53use util::ResultExt;
54
55const WINDOW_STATE_IVAR: &str = "windowState";
56
57static mut WINDOW_CLASS: *const Class = ptr::null();
58static mut PANEL_CLASS: *const Class = ptr::null();
59static mut VIEW_CLASS: *const Class = ptr::null();
60static mut BLURRED_VIEW_CLASS: *const Class = ptr::null();
61
62#[allow(non_upper_case_globals)]
63const NSWindowStyleMaskNonactivatingPanel: NSWindowStyleMask =
64 NSWindowStyleMask::from_bits_retain(1 << 7);
65#[allow(non_upper_case_globals)]
66const NSNormalWindowLevel: NSInteger = 0;
67#[allow(non_upper_case_globals)]
68const NSPopUpWindowLevel: NSInteger = 101;
69#[allow(non_upper_case_globals)]
70const NSTrackingMouseEnteredAndExited: NSUInteger = 0x01;
71#[allow(non_upper_case_globals)]
72const NSTrackingMouseMoved: NSUInteger = 0x02;
73#[allow(non_upper_case_globals)]
74const NSTrackingActiveAlways: NSUInteger = 0x80;
75#[allow(non_upper_case_globals)]
76const NSTrackingInVisibleRect: NSUInteger = 0x200;
77#[allow(non_upper_case_globals)]
78const NSWindowAnimationBehaviorUtilityWindow: NSInteger = 4;
79#[allow(non_upper_case_globals)]
80const NSViewLayerContentsRedrawDuringViewResize: NSInteger = 2;
81// https://developer.apple.com/documentation/appkit/nsdragoperation
82type NSDragOperation = NSUInteger;
83#[allow(non_upper_case_globals)]
84const NSDragOperationNone: NSDragOperation = 0;
85#[allow(non_upper_case_globals)]
86const NSDragOperationCopy: NSDragOperation = 1;
87#[derive(PartialEq)]
88pub enum UserTabbingPreference {
89 Never,
90 Always,
91 InFullScreen,
92}
93
94#[link(name = "CoreGraphics", kind = "framework")]
95unsafe extern "C" {
96 // Widely used private APIs; Apple uses them for their Terminal.app.
97 fn CGSMainConnectionID() -> id;
98 fn CGSSetWindowBackgroundBlurRadius(
99 connection_id: id,
100 window_id: NSInteger,
101 radius: i64,
102 ) -> i32;
103}
104
105#[ctor]
106unsafe fn build_classes() {
107 unsafe {
108 WINDOW_CLASS = build_window_class("GPUIWindow", class!(NSWindow));
109 PANEL_CLASS = build_window_class("GPUIPanel", class!(NSPanel));
110 VIEW_CLASS = {
111 let mut decl = ClassDecl::new("GPUIView", class!(NSView)).unwrap();
112 decl.add_ivar::<*mut c_void>(WINDOW_STATE_IVAR);
113 unsafe {
114 decl.add_method(sel!(dealloc), dealloc_view as extern "C" fn(&Object, Sel));
115
116 decl.add_method(
117 sel!(performKeyEquivalent:),
118 handle_key_equivalent as extern "C" fn(&Object, Sel, id) -> BOOL,
119 );
120 decl.add_method(
121 sel!(keyDown:),
122 handle_key_down as extern "C" fn(&Object, Sel, id),
123 );
124 decl.add_method(
125 sel!(keyUp:),
126 handle_key_up as extern "C" fn(&Object, Sel, id),
127 );
128 decl.add_method(
129 sel!(mouseDown:),
130 handle_view_event as extern "C" fn(&Object, Sel, id),
131 );
132 decl.add_method(
133 sel!(mouseUp:),
134 handle_view_event as extern "C" fn(&Object, Sel, id),
135 );
136 decl.add_method(
137 sel!(rightMouseDown:),
138 handle_view_event as extern "C" fn(&Object, Sel, id),
139 );
140 decl.add_method(
141 sel!(rightMouseUp:),
142 handle_view_event as extern "C" fn(&Object, Sel, id),
143 );
144 decl.add_method(
145 sel!(otherMouseDown:),
146 handle_view_event as extern "C" fn(&Object, Sel, id),
147 );
148 decl.add_method(
149 sel!(otherMouseUp:),
150 handle_view_event as extern "C" fn(&Object, Sel, id),
151 );
152 decl.add_method(
153 sel!(mouseMoved:),
154 handle_view_event as extern "C" fn(&Object, Sel, id),
155 );
156 decl.add_method(
157 sel!(pressureChangeWithEvent:),
158 handle_view_event as extern "C" fn(&Object, Sel, id),
159 );
160 decl.add_method(
161 sel!(mouseExited:),
162 handle_view_event as extern "C" fn(&Object, Sel, id),
163 );
164 decl.add_method(
165 sel!(mouseDragged:),
166 handle_view_event as extern "C" fn(&Object, Sel, id),
167 );
168 decl.add_method(
169 sel!(scrollWheel:),
170 handle_view_event as extern "C" fn(&Object, Sel, id),
171 );
172 decl.add_method(
173 sel!(swipeWithEvent:),
174 handle_view_event as extern "C" fn(&Object, Sel, id),
175 );
176 decl.add_method(
177 sel!(flagsChanged:),
178 handle_view_event as extern "C" fn(&Object, Sel, id),
179 );
180
181 decl.add_method(
182 sel!(makeBackingLayer),
183 make_backing_layer as extern "C" fn(&Object, Sel) -> id,
184 );
185
186 decl.add_protocol(Protocol::get("CALayerDelegate").unwrap());
187 decl.add_method(
188 sel!(viewDidChangeBackingProperties),
189 view_did_change_backing_properties as extern "C" fn(&Object, Sel),
190 );
191 decl.add_method(
192 sel!(setFrameSize:),
193 set_frame_size as extern "C" fn(&Object, Sel, NSSize),
194 );
195 decl.add_method(
196 sel!(displayLayer:),
197 display_layer as extern "C" fn(&Object, Sel, id),
198 );
199
200 decl.add_protocol(Protocol::get("NSTextInputClient").unwrap());
201 decl.add_method(
202 sel!(validAttributesForMarkedText),
203 valid_attributes_for_marked_text as extern "C" fn(&Object, Sel) -> id,
204 );
205 decl.add_method(
206 sel!(hasMarkedText),
207 has_marked_text as extern "C" fn(&Object, Sel) -> BOOL,
208 );
209 decl.add_method(
210 sel!(markedRange),
211 marked_range as extern "C" fn(&Object, Sel) -> NSRange,
212 );
213 decl.add_method(
214 sel!(selectedRange),
215 selected_range as extern "C" fn(&Object, Sel) -> NSRange,
216 );
217 decl.add_method(
218 sel!(firstRectForCharacterRange:actualRange:),
219 first_rect_for_character_range
220 as extern "C" fn(&Object, Sel, NSRange, id) -> NSRect,
221 );
222 decl.add_method(
223 sel!(insertText:replacementRange:),
224 insert_text as extern "C" fn(&Object, Sel, id, NSRange),
225 );
226 decl.add_method(
227 sel!(setMarkedText:selectedRange:replacementRange:),
228 set_marked_text as extern "C" fn(&Object, Sel, id, NSRange, NSRange),
229 );
230 decl.add_method(sel!(unmarkText), unmark_text as extern "C" fn(&Object, Sel));
231 decl.add_method(
232 sel!(attributedSubstringForProposedRange:actualRange:),
233 attributed_substring_for_proposed_range
234 as extern "C" fn(&Object, Sel, NSRange, *mut c_void) -> id,
235 );
236 decl.add_method(
237 sel!(viewDidChangeEffectiveAppearance),
238 view_did_change_effective_appearance as extern "C" fn(&Object, Sel),
239 );
240
241 // Suppress beep on keystrokes with modifier keys.
242 decl.add_method(
243 sel!(doCommandBySelector:),
244 do_command_by_selector as extern "C" fn(&Object, Sel, Sel),
245 );
246
247 decl.add_method(
248 sel!(acceptsFirstMouse:),
249 accepts_first_mouse as extern "C" fn(&Object, Sel, id) -> BOOL,
250 );
251
252 decl.add_method(
253 sel!(characterIndexForPoint:),
254 character_index_for_point as extern "C" fn(&Object, Sel, NSPoint) -> u64,
255 );
256 }
257 decl.register()
258 };
259 BLURRED_VIEW_CLASS = {
260 let mut decl = ClassDecl::new("BlurredView", class!(NSVisualEffectView)).unwrap();
261 unsafe {
262 decl.add_method(
263 sel!(initWithFrame:),
264 blurred_view_init_with_frame as extern "C" fn(&Object, Sel, NSRect) -> id,
265 );
266 decl.add_method(
267 sel!(updateLayer),
268 blurred_view_update_layer as extern "C" fn(&Object, Sel),
269 );
270 decl.register()
271 }
272 };
273 }
274}
275
276pub(crate) fn convert_mouse_position(position: NSPoint, window_height: Pixels) -> Point<Pixels> {
277 point(
278 px(position.x as f32),
279 // macOS screen coordinates are relative to bottom left
280 window_height - px(position.y as f32),
281 )
282}
283
284unsafe fn build_window_class(name: &'static str, superclass: &Class) -> *const Class {
285 unsafe {
286 let mut decl = ClassDecl::new(name, superclass).unwrap();
287 decl.add_ivar::<*mut c_void>(WINDOW_STATE_IVAR);
288 decl.add_method(sel!(dealloc), dealloc_window as extern "C" fn(&Object, Sel));
289
290 decl.add_method(
291 sel!(canBecomeMainWindow),
292 yes as extern "C" fn(&Object, Sel) -> BOOL,
293 );
294 decl.add_method(
295 sel!(canBecomeKeyWindow),
296 yes as extern "C" fn(&Object, Sel) -> BOOL,
297 );
298 decl.add_method(
299 sel!(windowDidResize:),
300 window_did_resize as extern "C" fn(&Object, Sel, id),
301 );
302 decl.add_method(
303 sel!(windowDidChangeOcclusionState:),
304 window_did_change_occlusion_state as extern "C" fn(&Object, Sel, id),
305 );
306 decl.add_method(
307 sel!(windowWillEnterFullScreen:),
308 window_will_enter_fullscreen as extern "C" fn(&Object, Sel, id),
309 );
310 decl.add_method(
311 sel!(windowWillExitFullScreen:),
312 window_will_exit_fullscreen as extern "C" fn(&Object, Sel, id),
313 );
314 decl.add_method(
315 sel!(windowDidMove:),
316 window_did_move as extern "C" fn(&Object, Sel, id),
317 );
318 decl.add_method(
319 sel!(windowDidChangeScreen:),
320 window_did_change_screen as extern "C" fn(&Object, Sel, id),
321 );
322 decl.add_method(
323 sel!(windowDidBecomeKey:),
324 window_did_change_key_status as extern "C" fn(&Object, Sel, id),
325 );
326 decl.add_method(
327 sel!(windowDidResignKey:),
328 window_did_change_key_status as extern "C" fn(&Object, Sel, id),
329 );
330 decl.add_method(
331 sel!(windowShouldClose:),
332 window_should_close as extern "C" fn(&Object, Sel, id) -> BOOL,
333 );
334
335 decl.add_method(sel!(close), close_window as extern "C" fn(&Object, Sel));
336
337 decl.add_method(
338 sel!(draggingEntered:),
339 dragging_entered as extern "C" fn(&Object, Sel, id) -> NSDragOperation,
340 );
341 decl.add_method(
342 sel!(draggingUpdated:),
343 dragging_updated as extern "C" fn(&Object, Sel, id) -> NSDragOperation,
344 );
345 decl.add_method(
346 sel!(draggingExited:),
347 dragging_exited as extern "C" fn(&Object, Sel, id),
348 );
349 decl.add_method(
350 sel!(performDragOperation:),
351 perform_drag_operation as extern "C" fn(&Object, Sel, id) -> BOOL,
352 );
353 decl.add_method(
354 sel!(concludeDragOperation:),
355 conclude_drag_operation as extern "C" fn(&Object, Sel, id),
356 );
357
358 decl.add_method(
359 sel!(addTitlebarAccessoryViewController:),
360 add_titlebar_accessory_view_controller as extern "C" fn(&Object, Sel, id),
361 );
362
363 decl.add_method(
364 sel!(moveTabToNewWindow:),
365 move_tab_to_new_window as extern "C" fn(&Object, Sel, id),
366 );
367
368 decl.add_method(
369 sel!(mergeAllWindows:),
370 merge_all_windows as extern "C" fn(&Object, Sel, id),
371 );
372
373 decl.add_method(
374 sel!(selectNextTab:),
375 select_next_tab as extern "C" fn(&Object, Sel, id),
376 );
377
378 decl.add_method(
379 sel!(selectPreviousTab:),
380 select_previous_tab as extern "C" fn(&Object, Sel, id),
381 );
382
383 decl.add_method(
384 sel!(toggleTabBar:),
385 toggle_tab_bar as extern "C" fn(&Object, Sel, id),
386 );
387
388 decl.register()
389 }
390}
391
392struct MacWindowState {
393 handle: AnyWindowHandle,
394 executor: ForegroundExecutor,
395 native_window: id,
396 native_view: NonNull<Object>,
397 blurred_view: Option<id>,
398 display_link: Option<DisplayLink>,
399 renderer: renderer::Renderer,
400 request_frame_callback: Option<Box<dyn FnMut(RequestFrameOptions)>>,
401 event_callback: Option<Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>>,
402 activate_callback: Option<Box<dyn FnMut(bool)>>,
403 resize_callback: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
404 moved_callback: Option<Box<dyn FnMut()>>,
405 should_close_callback: Option<Box<dyn FnMut() -> bool>>,
406 close_callback: Option<Box<dyn FnOnce()>>,
407 appearance_changed_callback: Option<Box<dyn FnMut()>>,
408 input_handler: Option<PlatformInputHandler>,
409 last_key_equivalent: Option<KeyDownEvent>,
410 synthetic_drag_counter: usize,
411 traffic_light_position: Option<Point<Pixels>>,
412 transparent_titlebar: bool,
413 previous_modifiers_changed_event: Option<PlatformInput>,
414 keystroke_for_do_command: Option<Keystroke>,
415 do_command_handled: Option<bool>,
416 external_files_dragged: bool,
417 // Whether the next left-mouse click is also the focusing click.
418 first_mouse: bool,
419 fullscreen_restore_bounds: Bounds<Pixels>,
420 move_tab_to_new_window_callback: Option<Box<dyn FnMut()>>,
421 merge_all_windows_callback: Option<Box<dyn FnMut()>>,
422 select_next_tab_callback: Option<Box<dyn FnMut()>>,
423 select_previous_tab_callback: Option<Box<dyn FnMut()>>,
424 toggle_tab_bar_callback: Option<Box<dyn FnMut()>>,
425 activated_least_once: bool,
426}
427
428impl MacWindowState {
429 fn move_traffic_light(&self) {
430 if let Some(traffic_light_position) = self.traffic_light_position {
431 if self.is_fullscreen() {
432 // Moving traffic lights while fullscreen doesn't work,
433 // see https://github.com/zed-industries/zed/issues/4712
434 return;
435 }
436
437 let titlebar_height = self.titlebar_height();
438
439 unsafe {
440 let close_button: id = msg_send![
441 self.native_window,
442 standardWindowButton: NSWindowButton::NSWindowCloseButton
443 ];
444 let min_button: id = msg_send![
445 self.native_window,
446 standardWindowButton: NSWindowButton::NSWindowMiniaturizeButton
447 ];
448 let zoom_button: id = msg_send![
449 self.native_window,
450 standardWindowButton: NSWindowButton::NSWindowZoomButton
451 ];
452
453 let mut close_button_frame: CGRect = msg_send![close_button, frame];
454 let mut min_button_frame: CGRect = msg_send![min_button, frame];
455 let mut zoom_button_frame: CGRect = msg_send![zoom_button, frame];
456 let mut origin = point(
457 traffic_light_position.x,
458 titlebar_height
459 - traffic_light_position.y
460 - px(close_button_frame.size.height as f32),
461 );
462 let button_spacing =
463 px((min_button_frame.origin.x - close_button_frame.origin.x) as f32);
464
465 close_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into());
466 let _: () = msg_send![close_button, setFrame: close_button_frame];
467 origin.x += button_spacing;
468
469 min_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into());
470 let _: () = msg_send![min_button, setFrame: min_button_frame];
471 origin.x += button_spacing;
472
473 zoom_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into());
474 let _: () = msg_send![zoom_button, setFrame: zoom_button_frame];
475 origin.x += button_spacing;
476 }
477 }
478 }
479
480 fn start_display_link(&mut self) {
481 self.stop_display_link();
482 unsafe {
483 if !self
484 .native_window
485 .occlusionState()
486 .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible)
487 {
488 return;
489 }
490 }
491 let display_id = unsafe { display_id_for_screen(self.native_window.screen()) };
492 if let Some(mut display_link) =
493 DisplayLink::new(display_id, self.native_view.as_ptr() as *mut c_void, step).log_err()
494 {
495 display_link.start().log_err();
496 self.display_link = Some(display_link);
497 }
498 }
499
500 fn stop_display_link(&mut self) {
501 self.display_link = None;
502 }
503
504 fn is_maximized(&self) -> bool {
505 unsafe {
506 let bounds = self.bounds();
507 let screen_size = self.native_window.screen().visibleFrame().into();
508 bounds.size == screen_size
509 }
510 }
511
512 fn is_fullscreen(&self) -> bool {
513 unsafe {
514 let style_mask = self.native_window.styleMask();
515 style_mask.contains(NSWindowStyleMask::NSFullScreenWindowMask)
516 }
517 }
518
519 fn bounds(&self) -> Bounds<Pixels> {
520 let mut window_frame = unsafe { NSWindow::frame(self.native_window) };
521 let screen = unsafe { NSWindow::screen(self.native_window) };
522 if screen == nil {
523 return Bounds::new(point(px(0.), px(0.)), crate::DEFAULT_WINDOW_SIZE);
524 }
525 let screen_frame = unsafe { NSScreen::frame(screen) };
526
527 // Flip the y coordinate to be top-left origin
528 window_frame.origin.y =
529 screen_frame.size.height - window_frame.origin.y - window_frame.size.height;
530
531 Bounds::new(
532 point(
533 px((window_frame.origin.x - screen_frame.origin.x) as f32),
534 px((window_frame.origin.y + screen_frame.origin.y) as f32),
535 ),
536 size(
537 px(window_frame.size.width as f32),
538 px(window_frame.size.height as f32),
539 ),
540 )
541 }
542
543 fn content_size(&self) -> Size<Pixels> {
544 let NSSize { width, height, .. } =
545 unsafe { NSView::frame(self.native_window.contentView()) }.size;
546 size(px(width as f32), px(height as f32))
547 }
548
549 fn scale_factor(&self) -> f32 {
550 get_scale_factor(self.native_window)
551 }
552
553 fn titlebar_height(&self) -> Pixels {
554 unsafe {
555 let frame = NSWindow::frame(self.native_window);
556 let content_layout_rect: CGRect = msg_send![self.native_window, contentLayoutRect];
557 px((frame.size.height - content_layout_rect.size.height) as f32)
558 }
559 }
560
561 fn window_bounds(&self) -> WindowBounds {
562 if self.is_fullscreen() {
563 WindowBounds::Fullscreen(self.fullscreen_restore_bounds)
564 } else {
565 WindowBounds::Windowed(self.bounds())
566 }
567 }
568}
569
570unsafe impl Send for MacWindowState {}
571
572pub(crate) struct MacWindow(Arc<Mutex<MacWindowState>>);
573
574impl MacWindow {
575 pub fn open(
576 handle: AnyWindowHandle,
577 WindowParams {
578 bounds,
579 titlebar,
580 kind,
581 is_movable,
582 is_resizable,
583 is_minimizable,
584 focus,
585 show,
586 display_id,
587 window_min_size,
588 tabbing_identifier,
589 }: WindowParams,
590 executor: ForegroundExecutor,
591 renderer_context: renderer::Context,
592 ) -> Self {
593 unsafe {
594 let pool = NSAutoreleasePool::new(nil);
595
596 let allows_automatic_window_tabbing = tabbing_identifier.is_some();
597 if allows_automatic_window_tabbing {
598 let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: YES];
599 } else {
600 let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: NO];
601 }
602
603 let mut style_mask;
604 if let Some(titlebar) = titlebar.as_ref() {
605 style_mask =
606 NSWindowStyleMask::NSClosableWindowMask | NSWindowStyleMask::NSTitledWindowMask;
607
608 if is_resizable {
609 style_mask |= NSWindowStyleMask::NSResizableWindowMask;
610 }
611
612 if is_minimizable {
613 style_mask |= NSWindowStyleMask::NSMiniaturizableWindowMask;
614 }
615
616 if titlebar.appears_transparent {
617 style_mask |= NSWindowStyleMask::NSFullSizeContentViewWindowMask;
618 }
619 } else {
620 style_mask = NSWindowStyleMask::NSTitledWindowMask
621 | NSWindowStyleMask::NSFullSizeContentViewWindowMask;
622 }
623
624 let native_window: id = match kind {
625 WindowKind::Normal | WindowKind::Floating => msg_send![WINDOW_CLASS, alloc],
626 WindowKind::PopUp => {
627 style_mask |= NSWindowStyleMaskNonactivatingPanel;
628 msg_send![PANEL_CLASS, alloc]
629 }
630 };
631
632 let display = display_id
633 .and_then(MacDisplay::find_by_id)
634 .unwrap_or_else(MacDisplay::primary);
635
636 let mut target_screen = nil;
637 let mut screen_frame = None;
638
639 let screens = NSScreen::screens(nil);
640 let count: u64 = cocoa::foundation::NSArray::count(screens);
641 for i in 0..count {
642 let screen = cocoa::foundation::NSArray::objectAtIndex(screens, i);
643 let frame = NSScreen::frame(screen);
644 let display_id = display_id_for_screen(screen);
645 if display_id == display.0 {
646 screen_frame = Some(frame);
647 target_screen = screen;
648 }
649 }
650
651 let screen_frame = screen_frame.unwrap_or_else(|| {
652 let screen = NSScreen::mainScreen(nil);
653 target_screen = screen;
654 NSScreen::frame(screen)
655 });
656
657 let window_rect = NSRect::new(
658 NSPoint::new(
659 screen_frame.origin.x + bounds.origin.x.0 as f64,
660 screen_frame.origin.y
661 + (display.bounds().size.height - bounds.origin.y).0 as f64,
662 ),
663 NSSize::new(bounds.size.width.0 as f64, bounds.size.height.0 as f64),
664 );
665
666 let native_window = native_window.initWithContentRect_styleMask_backing_defer_screen_(
667 window_rect,
668 style_mask,
669 NSBackingStoreBuffered,
670 NO,
671 target_screen,
672 );
673 assert!(!native_window.is_null());
674 let () = msg_send![
675 native_window,
676 registerForDraggedTypes:
677 NSArray::arrayWithObject(nil, NSFilenamesPboardType)
678 ];
679 let () = msg_send![
680 native_window,
681 setReleasedWhenClosed: NO
682 ];
683
684 let content_view = native_window.contentView();
685 let native_view: id = msg_send![VIEW_CLASS, alloc];
686 let native_view = NSView::initWithFrame_(native_view, NSView::bounds(content_view));
687 assert!(!native_view.is_null());
688
689 let mut window = Self(Arc::new(Mutex::new(MacWindowState {
690 handle,
691 executor,
692 native_window,
693 native_view: NonNull::new_unchecked(native_view),
694 blurred_view: None,
695 display_link: None,
696 renderer: renderer::new_renderer(
697 renderer_context,
698 native_window as *mut _,
699 native_view as *mut _,
700 bounds.size.map(|pixels| pixels.0),
701 false,
702 ),
703 request_frame_callback: None,
704 event_callback: None,
705 activate_callback: None,
706 resize_callback: None,
707 moved_callback: None,
708 should_close_callback: None,
709 close_callback: None,
710 appearance_changed_callback: None,
711 input_handler: None,
712 last_key_equivalent: None,
713 synthetic_drag_counter: 0,
714 traffic_light_position: titlebar
715 .as_ref()
716 .and_then(|titlebar| titlebar.traffic_light_position),
717 transparent_titlebar: titlebar
718 .as_ref()
719 .is_none_or(|titlebar| titlebar.appears_transparent),
720 previous_modifiers_changed_event: None,
721 keystroke_for_do_command: None,
722 do_command_handled: None,
723 external_files_dragged: false,
724 first_mouse: false,
725 fullscreen_restore_bounds: Bounds::default(),
726 move_tab_to_new_window_callback: None,
727 merge_all_windows_callback: None,
728 select_next_tab_callback: None,
729 select_previous_tab_callback: None,
730 toggle_tab_bar_callback: None,
731 activated_least_once: false,
732 })));
733
734 (*native_window).set_ivar(
735 WINDOW_STATE_IVAR,
736 Arc::into_raw(window.0.clone()) as *const c_void,
737 );
738 native_window.setDelegate_(native_window);
739 (*native_view).set_ivar(
740 WINDOW_STATE_IVAR,
741 Arc::into_raw(window.0.clone()) as *const c_void,
742 );
743
744 if let Some(title) = titlebar
745 .as_ref()
746 .and_then(|t| t.title.as_ref().map(AsRef::as_ref))
747 {
748 window.set_title(title);
749 }
750
751 native_window.setMovable_(is_movable as BOOL);
752
753 if let Some(window_min_size) = window_min_size {
754 native_window.setContentMinSize_(NSSize {
755 width: window_min_size.width.to_f64(),
756 height: window_min_size.height.to_f64(),
757 });
758 }
759
760 if titlebar.is_none_or(|titlebar| titlebar.appears_transparent) {
761 native_window.setTitlebarAppearsTransparent_(YES);
762 native_window.setTitleVisibility_(NSWindowTitleVisibility::NSWindowTitleHidden);
763 }
764
765 native_view.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable);
766 native_view.setWantsBestResolutionOpenGLSurface_(YES);
767
768 // From winit crate: On Mojave, views automatically become layer-backed shortly after
769 // being added to a native_window. Changing the layer-backedness of a view breaks the
770 // association between the view and its associated OpenGL context. To work around this,
771 // on we explicitly make the view layer-backed up front so that AppKit doesn't do it
772 // itself and break the association with its context.
773 native_view.setWantsLayer(YES);
774 let _: () = msg_send![
775 native_view,
776 setLayerContentsRedrawPolicy: NSViewLayerContentsRedrawDuringViewResize
777 ];
778
779 content_view.addSubview_(native_view.autorelease());
780 native_window.makeFirstResponder_(native_view);
781
782 match kind {
783 WindowKind::Normal | WindowKind::Floating => {
784 native_window.setLevel_(NSNormalWindowLevel);
785 native_window.setAcceptsMouseMovedEvents_(YES);
786
787 if let Some(tabbing_identifier) = tabbing_identifier {
788 let tabbing_id = ns_string(tabbing_identifier.as_str());
789 let _: () = msg_send![native_window, setTabbingIdentifier: tabbing_id];
790 } else {
791 let _: () = msg_send![native_window, setTabbingIdentifier:nil];
792 }
793 }
794 WindowKind::PopUp => {
795 // Use a tracking area to allow receiving MouseMoved events even when
796 // the window or application aren't active, which is often the case
797 // e.g. for notification windows.
798 let tracking_area: id = msg_send![class!(NSTrackingArea), alloc];
799 let _: () = msg_send![
800 tracking_area,
801 initWithRect: NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.))
802 options: NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved | NSTrackingActiveAlways | NSTrackingInVisibleRect
803 owner: native_view
804 userInfo: nil
805 ];
806 let _: () =
807 msg_send![native_view, addTrackingArea: tracking_area.autorelease()];
808
809 native_window.setLevel_(NSPopUpWindowLevel);
810 let _: () = msg_send![
811 native_window,
812 setAnimationBehavior: NSWindowAnimationBehaviorUtilityWindow
813 ];
814 native_window.setCollectionBehavior_(
815 NSWindowCollectionBehavior::NSWindowCollectionBehaviorCanJoinAllSpaces |
816 NSWindowCollectionBehavior::NSWindowCollectionBehaviorFullScreenAuxiliary
817 );
818 }
819 }
820
821 let app = NSApplication::sharedApplication(nil);
822 let main_window: id = msg_send![app, mainWindow];
823 if allows_automatic_window_tabbing
824 && !main_window.is_null()
825 && main_window != native_window
826 {
827 let main_window_is_fullscreen = main_window
828 .styleMask()
829 .contains(NSWindowStyleMask::NSFullScreenWindowMask);
830 let user_tabbing_preference = Self::get_user_tabbing_preference()
831 .unwrap_or(UserTabbingPreference::InFullScreen);
832 let should_add_as_tab = user_tabbing_preference == UserTabbingPreference::Always
833 || user_tabbing_preference == UserTabbingPreference::InFullScreen
834 && main_window_is_fullscreen;
835
836 if should_add_as_tab {
837 let main_window_can_tab: BOOL =
838 msg_send![main_window, respondsToSelector: sel!(addTabbedWindow:ordered:)];
839 let main_window_visible: BOOL = msg_send![main_window, isVisible];
840
841 if main_window_can_tab == YES && main_window_visible == YES {
842 let _: () = msg_send![main_window, addTabbedWindow: native_window ordered: NSWindowOrderingMode::NSWindowAbove];
843
844 // Ensure the window is visible immediately after adding the tab, since the tab bar is updated with a new entry at this point.
845 // Note: Calling orderFront here can break fullscreen mode (makes fullscreen windows exit fullscreen), so only do this if the main window is not fullscreen.
846 if !main_window_is_fullscreen {
847 let _: () = msg_send![native_window, orderFront: nil];
848 }
849 }
850 }
851 }
852
853 if focus && show {
854 native_window.makeKeyAndOrderFront_(nil);
855 } else if show {
856 native_window.orderFront_(nil);
857 }
858
859 // Set the initial position of the window to the specified origin.
860 // Although we already specified the position using `initWithContentRect_styleMask_backing_defer_screen_`,
861 // the window position might be incorrect if the main screen (the screen that contains the window that has focus)
862 // is different from the primary screen.
863 NSWindow::setFrameTopLeftPoint_(native_window, window_rect.origin);
864 window.0.lock().move_traffic_light();
865
866 pool.drain();
867
868 window
869 }
870 }
871
872 pub fn active_window() -> Option<AnyWindowHandle> {
873 unsafe {
874 let app = NSApplication::sharedApplication(nil);
875 let main_window: id = msg_send![app, mainWindow];
876 if main_window.is_null() {
877 return None;
878 }
879
880 if msg_send![main_window, isKindOfClass: WINDOW_CLASS] {
881 let handle = get_window_state(&*main_window).lock().handle;
882 Some(handle)
883 } else {
884 None
885 }
886 }
887 }
888
889 pub fn ordered_windows() -> Vec<AnyWindowHandle> {
890 unsafe {
891 let app = NSApplication::sharedApplication(nil);
892 let windows: id = msg_send![app, orderedWindows];
893 let count: NSUInteger = msg_send![windows, count];
894
895 let mut window_handles = Vec::new();
896 for i in 0..count {
897 let window: id = msg_send![windows, objectAtIndex:i];
898 if msg_send![window, isKindOfClass: WINDOW_CLASS] {
899 let handle = get_window_state(&*window).lock().handle;
900 window_handles.push(handle);
901 }
902 }
903
904 window_handles
905 }
906 }
907
908 pub fn get_user_tabbing_preference() -> Option<UserTabbingPreference> {
909 unsafe {
910 let defaults: id = NSUserDefaults::standardUserDefaults();
911 let domain = ns_string("NSGlobalDomain");
912 let key = ns_string("AppleWindowTabbingMode");
913
914 let dict: id = msg_send![defaults, persistentDomainForName: domain];
915 let value: id = if !dict.is_null() {
916 msg_send![dict, objectForKey: key]
917 } else {
918 nil
919 };
920
921 let value_str = if !value.is_null() {
922 CStr::from_ptr(NSString::UTF8String(value)).to_string_lossy()
923 } else {
924 "".into()
925 };
926
927 match value_str.as_ref() {
928 "manual" => Some(UserTabbingPreference::Never),
929 "always" => Some(UserTabbingPreference::Always),
930 _ => Some(UserTabbingPreference::InFullScreen),
931 }
932 }
933 }
934
935 /// Returns the CGWindowID (NSWindow's windowNumber) for this window.
936 /// This can be used for ScreenCaptureKit window capture.
937 #[cfg(any(test, feature = "test-support"))]
938 pub fn window_number(&self) -> u32 {
939 let this = self.0.lock();
940 unsafe { this.native_window.windowNumber() as u32 }
941 }
942}
943
944impl Drop for MacWindow {
945 fn drop(&mut self) {
946 let mut this = self.0.lock();
947 this.renderer.destroy();
948 let window = this.native_window;
949 this.display_link.take();
950 unsafe {
951 this.native_window.setDelegate_(nil);
952 }
953 this.input_handler.take();
954 this.executor
955 .spawn(async move {
956 unsafe {
957 window.close();
958 window.autorelease();
959 }
960 })
961 .detach();
962 }
963}
964
965impl PlatformWindow for MacWindow {
966 fn bounds(&self) -> Bounds<Pixels> {
967 self.0.as_ref().lock().bounds()
968 }
969
970 fn window_bounds(&self) -> WindowBounds {
971 self.0.as_ref().lock().window_bounds()
972 }
973
974 fn is_maximized(&self) -> bool {
975 self.0.as_ref().lock().is_maximized()
976 }
977
978 fn content_size(&self) -> Size<Pixels> {
979 self.0.as_ref().lock().content_size()
980 }
981
982 fn resize(&mut self, size: Size<Pixels>) {
983 let this = self.0.lock();
984 let window = this.native_window;
985 this.executor
986 .spawn(async move {
987 unsafe {
988 window.setContentSize_(NSSize {
989 width: size.width.0 as f64,
990 height: size.height.0 as f64,
991 });
992 }
993 })
994 .detach();
995 }
996
997 fn merge_all_windows(&self) {
998 let native_window = self.0.lock().native_window;
999 unsafe extern "C" fn merge_windows_async(context: *mut std::ffi::c_void) {
1000 let native_window = context as id;
1001 let _: () = msg_send![native_window, mergeAllWindows:nil];
1002 }
1003
1004 unsafe {
1005 dispatch_async_f(
1006 dispatch_get_main_queue(),
1007 native_window as *mut std::ffi::c_void,
1008 Some(merge_windows_async),
1009 );
1010 }
1011 }
1012
1013 fn move_tab_to_new_window(&self) {
1014 let native_window = self.0.lock().native_window;
1015 unsafe extern "C" fn move_tab_async(context: *mut std::ffi::c_void) {
1016 let native_window = context as id;
1017 let _: () = msg_send![native_window, moveTabToNewWindow:nil];
1018 let _: () = msg_send![native_window, makeKeyAndOrderFront: nil];
1019 }
1020
1021 unsafe {
1022 dispatch_async_f(
1023 dispatch_get_main_queue(),
1024 native_window as *mut std::ffi::c_void,
1025 Some(move_tab_async),
1026 );
1027 }
1028 }
1029
1030 fn toggle_window_tab_overview(&self) {
1031 let native_window = self.0.lock().native_window;
1032 unsafe {
1033 let _: () = msg_send![native_window, toggleTabOverview:nil];
1034 }
1035 }
1036
1037 fn set_tabbing_identifier(&self, tabbing_identifier: Option<String>) {
1038 let native_window = self.0.lock().native_window;
1039 unsafe {
1040 let allows_automatic_window_tabbing = tabbing_identifier.is_some();
1041 if allows_automatic_window_tabbing {
1042 let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: YES];
1043 } else {
1044 let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: NO];
1045 }
1046
1047 if let Some(tabbing_identifier) = tabbing_identifier {
1048 let tabbing_id = ns_string(tabbing_identifier.as_str());
1049 let _: () = msg_send![native_window, setTabbingIdentifier: tabbing_id];
1050 } else {
1051 let _: () = msg_send![native_window, setTabbingIdentifier:nil];
1052 }
1053 }
1054 }
1055
1056 fn scale_factor(&self) -> f32 {
1057 self.0.as_ref().lock().scale_factor()
1058 }
1059
1060 fn appearance(&self) -> WindowAppearance {
1061 unsafe {
1062 let appearance: id = msg_send![self.0.lock().native_window, effectiveAppearance];
1063 WindowAppearance::from_native(appearance)
1064 }
1065 }
1066
1067 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
1068 unsafe {
1069 let screen = self.0.lock().native_window.screen();
1070 if screen.is_null() {
1071 return None;
1072 }
1073 let device_description: id = msg_send![screen, deviceDescription];
1074 let screen_number: id =
1075 NSDictionary::valueForKey_(device_description, ns_string("NSScreenNumber"));
1076
1077 let screen_number: u32 = msg_send![screen_number, unsignedIntValue];
1078
1079 Some(Rc::new(MacDisplay(screen_number)))
1080 }
1081 }
1082
1083 fn mouse_position(&self) -> Point<Pixels> {
1084 let position = unsafe {
1085 self.0
1086 .lock()
1087 .native_window
1088 .mouseLocationOutsideOfEventStream()
1089 };
1090 convert_mouse_position(position, self.content_size().height)
1091 }
1092
1093 fn modifiers(&self) -> Modifiers {
1094 unsafe {
1095 let modifiers: NSEventModifierFlags = msg_send![class!(NSEvent), modifierFlags];
1096
1097 let control = modifiers.contains(NSEventModifierFlags::NSControlKeyMask);
1098 let alt = modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask);
1099 let shift = modifiers.contains(NSEventModifierFlags::NSShiftKeyMask);
1100 let command = modifiers.contains(NSEventModifierFlags::NSCommandKeyMask);
1101 let function = modifiers.contains(NSEventModifierFlags::NSFunctionKeyMask);
1102
1103 Modifiers {
1104 control,
1105 alt,
1106 shift,
1107 platform: command,
1108 function,
1109 }
1110 }
1111 }
1112
1113 fn capslock(&self) -> Capslock {
1114 unsafe {
1115 let modifiers: NSEventModifierFlags = msg_send![class!(NSEvent), modifierFlags];
1116
1117 Capslock {
1118 on: modifiers.contains(NSEventModifierFlags::NSAlphaShiftKeyMask),
1119 }
1120 }
1121 }
1122
1123 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
1124 self.0.as_ref().lock().input_handler = Some(input_handler);
1125 }
1126
1127 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
1128 self.0.as_ref().lock().input_handler.take()
1129 }
1130
1131 fn prompt(
1132 &self,
1133 level: PromptLevel,
1134 msg: &str,
1135 detail: Option<&str>,
1136 answers: &[PromptButton],
1137 ) -> Option<oneshot::Receiver<usize>> {
1138 // macOs applies overrides to modal window buttons after they are added.
1139 // Two most important for this logic are:
1140 // * Buttons with "Cancel" title will be displayed as the last buttons in the modal
1141 // * Last button added to the modal via `addButtonWithTitle` stays focused
1142 // * Focused buttons react on "space"/" " keypresses
1143 // * Usage of `keyEquivalent`, `makeFirstResponder` or `setInitialFirstResponder` does not change the focus
1144 //
1145 // See also https://developer.apple.com/documentation/appkit/nsalert/1524532-addbuttonwithtitle#discussion
1146 // ```
1147 // By default, the first button has a key equivalent of Return,
1148 // any button with a title of “Cancel” has a key equivalent of Escape,
1149 // and any button with the title “Don’t Save” has a key equivalent of Command-D (but only if it’s not the first button).
1150 // ```
1151 //
1152 // To avoid situations when the last element added is "Cancel" and it gets the focus
1153 // (hence stealing both ESC and Space shortcuts), we find and add one non-Cancel button
1154 // last, so it gets focus and a Space shortcut.
1155 // This way, "Save this file? Yes/No/Cancel"-ish modals will get all three buttons mapped with a key.
1156 let latest_non_cancel_label = answers
1157 .iter()
1158 .enumerate()
1159 .rev()
1160 .find(|(_, label)| !label.is_cancel())
1161 .filter(|&(label_index, _)| label_index > 0);
1162
1163 unsafe {
1164 let alert: id = msg_send![class!(NSAlert), alloc];
1165 let alert: id = msg_send![alert, init];
1166 let alert_style = match level {
1167 PromptLevel::Info => 1,
1168 PromptLevel::Warning => 0,
1169 PromptLevel::Critical => 2,
1170 };
1171 let _: () = msg_send![alert, setAlertStyle: alert_style];
1172 let _: () = msg_send![alert, setMessageText: ns_string(msg)];
1173 if let Some(detail) = detail {
1174 let _: () = msg_send![alert, setInformativeText: ns_string(detail)];
1175 }
1176
1177 for (ix, answer) in answers
1178 .iter()
1179 .enumerate()
1180 .filter(|&(ix, _)| Some(ix) != latest_non_cancel_label.map(|(ix, _)| ix))
1181 {
1182 let button: id = msg_send![alert, addButtonWithTitle: ns_string(answer.label())];
1183 let _: () = msg_send![button, setTag: ix as NSInteger];
1184
1185 if answer.is_cancel() {
1186 // Bind Escape Key to Cancel Button
1187 if let Some(key) = std::char::from_u32(super::events::ESCAPE_KEY as u32) {
1188 let _: () =
1189 msg_send![button, setKeyEquivalent: ns_string(&key.to_string())];
1190 }
1191 }
1192 }
1193 if let Some((ix, answer)) = latest_non_cancel_label {
1194 let button: id = msg_send![alert, addButtonWithTitle: ns_string(answer.label())];
1195 let _: () = msg_send![button, setTag: ix as NSInteger];
1196 }
1197
1198 let (done_tx, done_rx) = oneshot::channel();
1199 let done_tx = Cell::new(Some(done_tx));
1200 let block = ConcreteBlock::new(move |answer: NSInteger| {
1201 if let Some(done_tx) = done_tx.take() {
1202 let _ = done_tx.send(answer.try_into().unwrap());
1203 }
1204 });
1205 let block = block.copy();
1206 let native_window = self.0.lock().native_window;
1207 let executor = self.0.lock().executor.clone();
1208 executor
1209 .spawn(async move {
1210 let _: () = msg_send![
1211 alert,
1212 beginSheetModalForWindow: native_window
1213 completionHandler: block
1214 ];
1215 })
1216 .detach();
1217
1218 Some(done_rx)
1219 }
1220 }
1221
1222 fn activate(&self) {
1223 let window = self.0.lock().native_window;
1224 let executor = self.0.lock().executor.clone();
1225 executor
1226 .spawn(async move {
1227 unsafe {
1228 let _: () = msg_send![window, makeKeyAndOrderFront: nil];
1229 }
1230 })
1231 .detach();
1232 }
1233
1234 fn is_active(&self) -> bool {
1235 unsafe { self.0.lock().native_window.isKeyWindow() == YES }
1236 }
1237
1238 // is_hovered is unused on macOS. See Window::is_window_hovered.
1239 fn is_hovered(&self) -> bool {
1240 false
1241 }
1242
1243 fn set_title(&mut self, title: &str) {
1244 unsafe {
1245 let app = NSApplication::sharedApplication(nil);
1246 let window = self.0.lock().native_window;
1247 let title = ns_string(title);
1248 let _: () = msg_send![app, changeWindowsItem:window title:title filename:false];
1249 let _: () = msg_send![window, setTitle: title];
1250 self.0.lock().move_traffic_light();
1251 }
1252 }
1253
1254 fn get_title(&self) -> String {
1255 unsafe {
1256 let title: id = msg_send![self.0.lock().native_window, title];
1257 if title.is_null() {
1258 "".to_string()
1259 } else {
1260 title.to_str().to_string()
1261 }
1262 }
1263 }
1264
1265 fn set_app_id(&mut self, _app_id: &str) {}
1266
1267 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
1268 let mut this = self.0.as_ref().lock();
1269
1270 let opaque = background_appearance == WindowBackgroundAppearance::Opaque;
1271 this.renderer.update_transparency(!opaque);
1272
1273 unsafe {
1274 this.native_window.setOpaque_(opaque as BOOL);
1275 let background_color = if opaque {
1276 NSColor::colorWithSRGBRed_green_blue_alpha_(nil, 0f64, 0f64, 0f64, 1f64)
1277 } else {
1278 // Not using `+[NSColor clearColor]` to avoid broken shadow.
1279 NSColor::colorWithSRGBRed_green_blue_alpha_(nil, 0f64, 0f64, 0f64, 0.0001)
1280 };
1281 this.native_window.setBackgroundColor_(background_color);
1282
1283 if NSAppKitVersionNumber < NSAppKitVersionNumber12_0 {
1284 // Whether `-[NSVisualEffectView respondsToSelector:@selector(_updateProxyLayer)]`.
1285 // On macOS Catalina/Big Sur `NSVisualEffectView` doesn’t own concrete sublayers
1286 // but uses a `CAProxyLayer`. Use the legacy WindowServer API.
1287 let blur_radius = if background_appearance == WindowBackgroundAppearance::Blurred {
1288 80
1289 } else {
1290 0
1291 };
1292
1293 let window_number = this.native_window.windowNumber();
1294 CGSSetWindowBackgroundBlurRadius(CGSMainConnectionID(), window_number, blur_radius);
1295 } else {
1296 // On newer macOS `NSVisualEffectView` manages the effect layer directly. Using it
1297 // could have a better performance (it downsamples the backdrop) and more control
1298 // over the effect layer.
1299 if background_appearance != WindowBackgroundAppearance::Blurred {
1300 if let Some(blur_view) = this.blurred_view {
1301 NSView::removeFromSuperview(blur_view);
1302 this.blurred_view = None;
1303 }
1304 } else if this.blurred_view.is_none() {
1305 let content_view = this.native_window.contentView();
1306 let frame = NSView::bounds(content_view);
1307 let mut blur_view: id = msg_send![BLURRED_VIEW_CLASS, alloc];
1308 blur_view = NSView::initWithFrame_(blur_view, frame);
1309 blur_view.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable);
1310
1311 let _: () = msg_send![
1312 content_view,
1313 addSubview: blur_view
1314 positioned: NSWindowOrderingMode::NSWindowBelow
1315 relativeTo: nil
1316 ];
1317 this.blurred_view = Some(blur_view.autorelease());
1318 }
1319 }
1320 }
1321 }
1322
1323 fn set_edited(&mut self, edited: bool) {
1324 unsafe {
1325 let window = self.0.lock().native_window;
1326 msg_send![window, setDocumentEdited: edited as BOOL]
1327 }
1328
1329 // Changing the document edited state resets the traffic light position,
1330 // so we have to move it again.
1331 self.0.lock().move_traffic_light();
1332 }
1333
1334 fn show_character_palette(&self) {
1335 let this = self.0.lock();
1336 let window = this.native_window;
1337 this.executor
1338 .spawn(async move {
1339 unsafe {
1340 let app = NSApplication::sharedApplication(nil);
1341 let _: () = msg_send![app, orderFrontCharacterPalette: window];
1342 }
1343 })
1344 .detach();
1345 }
1346
1347 fn minimize(&self) {
1348 let window = self.0.lock().native_window;
1349 unsafe {
1350 window.miniaturize_(nil);
1351 }
1352 }
1353
1354 fn zoom(&self) {
1355 let this = self.0.lock();
1356 let window = this.native_window;
1357 this.executor
1358 .spawn(async move {
1359 unsafe {
1360 window.zoom_(nil);
1361 }
1362 })
1363 .detach();
1364 }
1365
1366 fn toggle_fullscreen(&self) {
1367 let this = self.0.lock();
1368 let window = this.native_window;
1369 this.executor
1370 .spawn(async move {
1371 unsafe {
1372 window.toggleFullScreen_(nil);
1373 }
1374 })
1375 .detach();
1376 }
1377
1378 fn is_fullscreen(&self) -> bool {
1379 let this = self.0.lock();
1380 let window = this.native_window;
1381
1382 unsafe {
1383 window
1384 .styleMask()
1385 .contains(NSWindowStyleMask::NSFullScreenWindowMask)
1386 }
1387 }
1388
1389 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
1390 self.0.as_ref().lock().request_frame_callback = Some(callback);
1391 }
1392
1393 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>) {
1394 self.0.as_ref().lock().event_callback = Some(callback);
1395 }
1396
1397 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1398 self.0.as_ref().lock().activate_callback = Some(callback);
1399 }
1400
1401 fn on_hover_status_change(&self, _: Box<dyn FnMut(bool)>) {}
1402
1403 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
1404 self.0.as_ref().lock().resize_callback = Some(callback);
1405 }
1406
1407 fn on_moved(&self, callback: Box<dyn FnMut()>) {
1408 self.0.as_ref().lock().moved_callback = Some(callback);
1409 }
1410
1411 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
1412 self.0.as_ref().lock().should_close_callback = Some(callback);
1413 }
1414
1415 fn on_close(&self, callback: Box<dyn FnOnce()>) {
1416 self.0.as_ref().lock().close_callback = Some(callback);
1417 }
1418
1419 fn on_hit_test_window_control(&self, _callback: Box<dyn FnMut() -> Option<WindowControlArea>>) {
1420 }
1421
1422 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
1423 self.0.lock().appearance_changed_callback = Some(callback);
1424 }
1425
1426 fn tabbed_windows(&self) -> Option<Vec<SystemWindowTab>> {
1427 unsafe {
1428 let windows: id = msg_send![self.0.lock().native_window, tabbedWindows];
1429 if windows.is_null() {
1430 return None;
1431 }
1432
1433 let count: NSUInteger = msg_send![windows, count];
1434 let mut result = Vec::new();
1435 for i in 0..count {
1436 let window: id = msg_send![windows, objectAtIndex:i];
1437 if msg_send![window, isKindOfClass: WINDOW_CLASS] {
1438 let handle = get_window_state(&*window).lock().handle;
1439 let title: id = msg_send![window, title];
1440 let title = SharedString::from(title.to_str().to_string());
1441
1442 result.push(SystemWindowTab::new(title, handle));
1443 }
1444 }
1445
1446 Some(result)
1447 }
1448 }
1449
1450 fn tab_bar_visible(&self) -> bool {
1451 unsafe {
1452 let tab_group: id = msg_send![self.0.lock().native_window, tabGroup];
1453 if tab_group.is_null() {
1454 false
1455 } else {
1456 let tab_bar_visible: BOOL = msg_send![tab_group, isTabBarVisible];
1457 tab_bar_visible == YES
1458 }
1459 }
1460 }
1461
1462 fn on_move_tab_to_new_window(&self, callback: Box<dyn FnMut()>) {
1463 self.0.as_ref().lock().move_tab_to_new_window_callback = Some(callback);
1464 }
1465
1466 fn on_merge_all_windows(&self, callback: Box<dyn FnMut()>) {
1467 self.0.as_ref().lock().merge_all_windows_callback = Some(callback);
1468 }
1469
1470 fn on_select_next_tab(&self, callback: Box<dyn FnMut()>) {
1471 self.0.as_ref().lock().select_next_tab_callback = Some(callback);
1472 }
1473
1474 fn on_select_previous_tab(&self, callback: Box<dyn FnMut()>) {
1475 self.0.as_ref().lock().select_previous_tab_callback = Some(callback);
1476 }
1477
1478 fn on_toggle_tab_bar(&self, callback: Box<dyn FnMut()>) {
1479 self.0.as_ref().lock().toggle_tab_bar_callback = Some(callback);
1480 }
1481
1482 fn draw(&self, scene: &crate::Scene) {
1483 let mut this = self.0.lock();
1484 this.renderer.draw(scene);
1485 }
1486
1487 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
1488 self.0.lock().renderer.sprite_atlas().clone()
1489 }
1490
1491 fn gpu_specs(&self) -> Option<crate::GpuSpecs> {
1492 None
1493 }
1494
1495 fn update_ime_position(&self, _bounds: Bounds<Pixels>) {
1496 let executor = self.0.lock().executor.clone();
1497 executor
1498 .spawn(async move {
1499 unsafe {
1500 let input_context: id =
1501 msg_send![class!(NSTextInputContext), currentInputContext];
1502 if input_context.is_null() {
1503 return;
1504 }
1505 let _: () = msg_send![input_context, invalidateCharacterCoordinates];
1506 }
1507 })
1508 .detach()
1509 }
1510
1511 fn titlebar_double_click(&self) {
1512 let this = self.0.lock();
1513 let window = this.native_window;
1514 this.executor
1515 .spawn(async move {
1516 unsafe {
1517 let defaults: id = NSUserDefaults::standardUserDefaults();
1518 let domain = ns_string("NSGlobalDomain");
1519 let key = ns_string("AppleActionOnDoubleClick");
1520
1521 let dict: id = msg_send![defaults, persistentDomainForName: domain];
1522 let action: id = if !dict.is_null() {
1523 msg_send![dict, objectForKey: key]
1524 } else {
1525 nil
1526 };
1527
1528 let action_str = if !action.is_null() {
1529 CStr::from_ptr(NSString::UTF8String(action)).to_string_lossy()
1530 } else {
1531 "".into()
1532 };
1533
1534 match action_str.as_ref() {
1535 "None" => {
1536 // "Do Nothing" selected, so do no action
1537 }
1538 "Minimize" => {
1539 window.miniaturize_(nil);
1540 }
1541 "Maximize" => {
1542 window.zoom_(nil);
1543 }
1544 "Fill" => {
1545 // There is no documented API for "Fill" action, so we'll just zoom the window
1546 window.zoom_(nil);
1547 }
1548 _ => {
1549 window.zoom_(nil);
1550 }
1551 }
1552 }
1553 })
1554 .detach();
1555 }
1556
1557 fn start_window_move(&self) {
1558 let this = self.0.lock();
1559 let window = this.native_window;
1560
1561 unsafe {
1562 let app = NSApplication::sharedApplication(nil);
1563 let mut event: id = msg_send![app, currentEvent];
1564 let _: () = msg_send![window, performWindowDragWithEvent: event];
1565 }
1566 }
1567
1568 #[cfg(any(test, feature = "test-support"))]
1569 fn native_window_id(&self) -> Option<u32> {
1570 Some(self.window_number())
1571 }
1572}
1573
1574impl rwh::HasWindowHandle for MacWindow {
1575 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
1576 // SAFETY: The AppKitWindowHandle is a wrapper around a pointer to an NSView
1577 unsafe {
1578 Ok(rwh::WindowHandle::borrow_raw(rwh::RawWindowHandle::AppKit(
1579 rwh::AppKitWindowHandle::new(self.0.lock().native_view.cast()),
1580 )))
1581 }
1582 }
1583}
1584
1585impl rwh::HasDisplayHandle for MacWindow {
1586 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
1587 // SAFETY: This is a no-op on macOS
1588 unsafe {
1589 Ok(rwh::DisplayHandle::borrow_raw(
1590 rwh::AppKitDisplayHandle::new().into(),
1591 ))
1592 }
1593 }
1594}
1595
1596fn get_scale_factor(native_window: id) -> f32 {
1597 let factor = unsafe {
1598 let screen: id = msg_send![native_window, screen];
1599 if screen.is_null() {
1600 return 2.0;
1601 }
1602 NSScreen::backingScaleFactor(screen) as f32
1603 };
1604
1605 // We are not certain what triggers this, but it seems that sometimes
1606 // this method would return 0 (https://github.com/zed-industries/zed/issues/6412)
1607 // It seems most likely that this would happen if the window has no screen
1608 // (if it is off-screen), though we'd expect to see viewDidChangeBackingProperties before
1609 // it was rendered for real.
1610 // Regardless, attempt to avoid the issue here.
1611 if factor == 0.0 { 2. } else { factor }
1612}
1613
1614unsafe fn get_window_state(object: &Object) -> Arc<Mutex<MacWindowState>> {
1615 unsafe {
1616 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1617 let rc1 = Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1618 let rc2 = rc1.clone();
1619 mem::forget(rc1);
1620 rc2
1621 }
1622}
1623
1624unsafe fn drop_window_state(object: &Object) {
1625 unsafe {
1626 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1627 Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1628 }
1629}
1630
1631extern "C" fn yes(_: &Object, _: Sel) -> BOOL {
1632 YES
1633}
1634
1635extern "C" fn dealloc_window(this: &Object, _: Sel) {
1636 unsafe {
1637 drop_window_state(this);
1638 let _: () = msg_send![super(this, class!(NSWindow)), dealloc];
1639 }
1640}
1641
1642extern "C" fn dealloc_view(this: &Object, _: Sel) {
1643 unsafe {
1644 drop_window_state(this);
1645 let _: () = msg_send![super(this, class!(NSView)), dealloc];
1646 }
1647}
1648
1649extern "C" fn handle_key_equivalent(this: &Object, _: Sel, native_event: id) -> BOOL {
1650 handle_key_event(this, native_event, true)
1651}
1652
1653extern "C" fn handle_key_down(this: &Object, _: Sel, native_event: id) {
1654 handle_key_event(this, native_event, false);
1655}
1656
1657extern "C" fn handle_key_up(this: &Object, _: Sel, native_event: id) {
1658 handle_key_event(this, native_event, false);
1659}
1660
1661// Things to test if you're modifying this method:
1662// U.S. layout:
1663// - The IME consumes characters like 'j' and 'k', which makes paging through `less` in
1664// the terminal behave incorrectly by default. This behavior should be patched by our
1665// IME integration
1666// - `alt-t` should open the tasks menu
1667// - In vim mode, this keybinding should work:
1668// ```
1669// {
1670// "context": "Editor && vim_mode == insert",
1671// "bindings": {"j j": "vim::NormalBefore"}
1672// }
1673// ```
1674// and typing 'j k' in insert mode with this keybinding should insert the two characters
1675// Brazilian layout:
1676// - `" space` should create an unmarked quote
1677// - `" backspace` should delete the marked quote
1678// - `" "`should create an unmarked quote and a second marked quote
1679// - `" up` should insert a quote, unmark it, and move up one line
1680// - `" cmd-down` should insert a quote, unmark it, and move to the end of the file
1681// - `cmd-ctrl-space` and clicking on an emoji should type it
1682// Czech (QWERTY) layout:
1683// - in vim mode `option-4` should go to end of line (same as $)
1684// Japanese (Romaji) layout:
1685// - type `a i left down up enter enter` should create an unmarked text "愛"
1686extern "C" fn handle_key_event(this: &Object, native_event: id, key_equivalent: bool) -> BOOL {
1687 let window_state = unsafe { get_window_state(this) };
1688 let mut lock = window_state.as_ref().lock();
1689
1690 let window_height = lock.content_size().height;
1691 let event = unsafe { PlatformInput::from_native(native_event, Some(window_height)) };
1692
1693 let Some(event) = event else {
1694 return NO;
1695 };
1696
1697 let run_callback = |event: PlatformInput| -> BOOL {
1698 let mut callback = window_state.as_ref().lock().event_callback.take();
1699 let handled: BOOL = if let Some(callback) = callback.as_mut() {
1700 !callback(event).propagate as BOOL
1701 } else {
1702 NO
1703 };
1704 window_state.as_ref().lock().event_callback = callback;
1705 handled
1706 };
1707
1708 match event {
1709 PlatformInput::KeyDown(mut key_down_event) => {
1710 // For certain keystrokes, macOS will first dispatch a "key equivalent" event.
1711 // If that event isn't handled, it will then dispatch a "key down" event. GPUI
1712 // makes no distinction between these two types of events, so we need to ignore
1713 // the "key down" event if we've already just processed its "key equivalent" version.
1714 if key_equivalent {
1715 lock.last_key_equivalent = Some(key_down_event.clone());
1716 } else if lock.last_key_equivalent.take().as_ref() == Some(&key_down_event) {
1717 return NO;
1718 }
1719
1720 drop(lock);
1721
1722 let is_composing =
1723 with_input_handler(this, |input_handler| input_handler.marked_text_range())
1724 .flatten()
1725 .is_some();
1726
1727 // If we're composing, send the key to the input handler first;
1728 // otherwise we only send to the input handler if we don't have a matching binding.
1729 // The input handler may call `do_command_by_selector` if it doesn't know how to handle
1730 // a key. If it does so, it will return YES so we won't send the key twice.
1731 // We also do this for non-printing keys (like arrow keys and escape) as the IME menu
1732 // may need them even if there is no marked text;
1733 // however we skip keys with control or the input handler adds control-characters to the buffer.
1734 // and keys with function, as the input handler swallows them.
1735 if is_composing
1736 || (key_down_event.keystroke.key_char.is_none()
1737 && !key_down_event.keystroke.modifiers.control
1738 && !key_down_event.keystroke.modifiers.function)
1739 {
1740 {
1741 let mut lock = window_state.as_ref().lock();
1742 lock.keystroke_for_do_command = Some(key_down_event.keystroke.clone());
1743 lock.do_command_handled.take();
1744 drop(lock);
1745 }
1746
1747 let handled: BOOL = unsafe {
1748 let input_context: id = msg_send![this, inputContext];
1749 msg_send![input_context, handleEvent: native_event]
1750 };
1751 window_state.as_ref().lock().keystroke_for_do_command.take();
1752 if let Some(handled) = window_state.as_ref().lock().do_command_handled.take() {
1753 return handled as BOOL;
1754 } else if handled == YES {
1755 return YES;
1756 }
1757
1758 let handled = run_callback(PlatformInput::KeyDown(key_down_event));
1759 return handled;
1760 }
1761
1762 let handled = run_callback(PlatformInput::KeyDown(key_down_event.clone()));
1763 if handled == YES {
1764 return YES;
1765 }
1766
1767 if key_down_event.is_held
1768 && let Some(key_char) = key_down_event.keystroke.key_char.as_ref()
1769 {
1770 let handled = with_input_handler(this, |input_handler| {
1771 if !input_handler.apple_press_and_hold_enabled() {
1772 input_handler.replace_text_in_range(None, key_char);
1773 return YES;
1774 }
1775 NO
1776 });
1777 if handled == Some(YES) {
1778 return YES;
1779 }
1780 }
1781
1782 // Don't send key equivalents to the input handler if there are key modifiers other
1783 // than Function key, or macOS shortcuts like cmd-` will stop working.
1784 if key_equivalent && key_down_event.keystroke.modifiers != Modifiers::function() {
1785 return NO;
1786 }
1787
1788 unsafe {
1789 let input_context: id = msg_send![this, inputContext];
1790 msg_send![input_context, handleEvent: native_event]
1791 }
1792 }
1793
1794 PlatformInput::KeyUp(_) => {
1795 drop(lock);
1796 run_callback(event)
1797 }
1798
1799 _ => NO,
1800 }
1801}
1802
1803extern "C" fn handle_view_event(this: &Object, _: Sel, native_event: id) {
1804 let window_state = unsafe { get_window_state(this) };
1805 let weak_window_state = Arc::downgrade(&window_state);
1806 let mut lock = window_state.as_ref().lock();
1807 let window_height = lock.content_size().height;
1808 let event = unsafe { PlatformInput::from_native(native_event, Some(window_height)) };
1809
1810 if let Some(mut event) = event {
1811 match &mut event {
1812 PlatformInput::MouseDown(
1813 event @ MouseDownEvent {
1814 button: MouseButton::Left,
1815 modifiers: Modifiers { control: true, .. },
1816 ..
1817 },
1818 ) => {
1819 // On mac, a ctrl-left click should be handled as a right click.
1820 *event = MouseDownEvent {
1821 button: MouseButton::Right,
1822 modifiers: Modifiers {
1823 control: false,
1824 ..event.modifiers
1825 },
1826 click_count: 1,
1827 ..*event
1828 };
1829 }
1830
1831 // Handles focusing click.
1832 PlatformInput::MouseDown(
1833 event @ MouseDownEvent {
1834 button: MouseButton::Left,
1835 ..
1836 },
1837 ) if (lock.first_mouse) => {
1838 *event = MouseDownEvent {
1839 first_mouse: true,
1840 ..*event
1841 };
1842 lock.first_mouse = false;
1843 }
1844
1845 // Because we map a ctrl-left_down to a right_down -> right_up let's ignore
1846 // the ctrl-left_up to avoid having a mismatch in button down/up events if the
1847 // user is still holding ctrl when releasing the left mouse button
1848 PlatformInput::MouseUp(
1849 event @ MouseUpEvent {
1850 button: MouseButton::Left,
1851 modifiers: Modifiers { control: true, .. },
1852 ..
1853 },
1854 ) => {
1855 *event = MouseUpEvent {
1856 button: MouseButton::Right,
1857 modifiers: Modifiers {
1858 control: false,
1859 ..event.modifiers
1860 },
1861 click_count: 1,
1862 ..*event
1863 };
1864 }
1865
1866 _ => {}
1867 };
1868
1869 match &event {
1870 PlatformInput::MouseDown(_) => {
1871 drop(lock);
1872 unsafe {
1873 let input_context: id = msg_send![this, inputContext];
1874 msg_send![input_context, handleEvent: native_event]
1875 }
1876 lock = window_state.as_ref().lock();
1877 }
1878 PlatformInput::MouseMove(
1879 event @ MouseMoveEvent {
1880 pressed_button: Some(_),
1881 ..
1882 },
1883 ) => {
1884 // Synthetic drag is used for selecting long buffer contents while buffer is being scrolled.
1885 // External file drag and drop is able to emit its own synthetic mouse events which will conflict
1886 // with these ones.
1887 if !lock.external_files_dragged {
1888 lock.synthetic_drag_counter += 1;
1889 let executor = lock.executor.clone();
1890 executor
1891 .spawn(synthetic_drag(
1892 weak_window_state,
1893 lock.synthetic_drag_counter,
1894 event.clone(),
1895 ))
1896 .detach();
1897 }
1898 }
1899
1900 PlatformInput::MouseUp(MouseUpEvent { .. }) => {
1901 lock.synthetic_drag_counter += 1;
1902 }
1903
1904 PlatformInput::ModifiersChanged(ModifiersChangedEvent {
1905 modifiers,
1906 capslock,
1907 }) => {
1908 // Only raise modifiers changed event when they have actually changed
1909 if let Some(PlatformInput::ModifiersChanged(ModifiersChangedEvent {
1910 modifiers: prev_modifiers,
1911 capslock: prev_capslock,
1912 })) = &lock.previous_modifiers_changed_event
1913 && prev_modifiers == modifiers
1914 && prev_capslock == capslock
1915 {
1916 return;
1917 }
1918
1919 lock.previous_modifiers_changed_event = Some(event.clone());
1920 }
1921
1922 _ => {}
1923 }
1924
1925 if let Some(mut callback) = lock.event_callback.take() {
1926 drop(lock);
1927 callback(event);
1928 window_state.lock().event_callback = Some(callback);
1929 }
1930 }
1931}
1932
1933extern "C" fn window_did_change_occlusion_state(this: &Object, _: Sel, _: id) {
1934 let window_state = unsafe { get_window_state(this) };
1935 let lock = &mut *window_state.lock();
1936 unsafe {
1937 if lock
1938 .native_window
1939 .occlusionState()
1940 .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible)
1941 {
1942 lock.move_traffic_light();
1943 lock.start_display_link();
1944 } else {
1945 lock.stop_display_link();
1946 }
1947 }
1948}
1949
1950extern "C" fn window_did_resize(this: &Object, _: Sel, _: id) {
1951 let window_state = unsafe { get_window_state(this) };
1952 window_state.as_ref().lock().move_traffic_light();
1953}
1954
1955extern "C" fn window_will_enter_fullscreen(this: &Object, _: Sel, _: id) {
1956 let window_state = unsafe { get_window_state(this) };
1957 let mut lock = window_state.as_ref().lock();
1958 lock.fullscreen_restore_bounds = lock.bounds();
1959
1960 let min_version = NSOperatingSystemVersion::new(15, 3, 0);
1961
1962 if is_macos_version_at_least(min_version) {
1963 unsafe {
1964 lock.native_window.setTitlebarAppearsTransparent_(NO);
1965 }
1966 }
1967}
1968
1969extern "C" fn window_will_exit_fullscreen(this: &Object, _: Sel, _: id) {
1970 let window_state = unsafe { get_window_state(this) };
1971 let mut lock = window_state.as_ref().lock();
1972
1973 let min_version = NSOperatingSystemVersion::new(15, 3, 0);
1974
1975 if is_macos_version_at_least(min_version) && lock.transparent_titlebar {
1976 unsafe {
1977 lock.native_window.setTitlebarAppearsTransparent_(YES);
1978 }
1979 }
1980}
1981
1982pub(crate) fn is_macos_version_at_least(version: NSOperatingSystemVersion) -> bool {
1983 unsafe { NSProcessInfo::processInfo(nil).isOperatingSystemAtLeastVersion(version) }
1984}
1985
1986extern "C" fn window_did_move(this: &Object, _: Sel, _: id) {
1987 let window_state = unsafe { get_window_state(this) };
1988 let mut lock = window_state.as_ref().lock();
1989 if let Some(mut callback) = lock.moved_callback.take() {
1990 drop(lock);
1991 callback();
1992 window_state.lock().moved_callback = Some(callback);
1993 }
1994}
1995
1996// Update the window scale factor and drawable size, and call the resize callback if any.
1997fn update_window_scale_factor(window_state: &Arc<Mutex<MacWindowState>>) {
1998 let mut lock = window_state.as_ref().lock();
1999 let scale_factor = lock.scale_factor();
2000 let size = lock.content_size();
2001 let drawable_size = size.to_device_pixels(scale_factor);
2002 unsafe {
2003 let _: () = msg_send![
2004 lock.renderer.layer(),
2005 setContentsScale: scale_factor as f64
2006 ];
2007 }
2008
2009 lock.renderer.update_drawable_size(drawable_size);
2010
2011 if let Some(mut callback) = lock.resize_callback.take() {
2012 let content_size = lock.content_size();
2013 let scale_factor = lock.scale_factor();
2014 drop(lock);
2015 callback(content_size, scale_factor);
2016 window_state.as_ref().lock().resize_callback = Some(callback);
2017 };
2018}
2019
2020extern "C" fn window_did_change_screen(this: &Object, _: Sel, _: id) {
2021 let window_state = unsafe { get_window_state(this) };
2022 let mut lock = window_state.as_ref().lock();
2023 lock.start_display_link();
2024 drop(lock);
2025 update_window_scale_factor(&window_state);
2026}
2027
2028extern "C" fn window_did_change_key_status(this: &Object, selector: Sel, _: id) {
2029 let window_state = unsafe { get_window_state(this) };
2030 let mut lock = window_state.lock();
2031 let is_active = unsafe { lock.native_window.isKeyWindow() == YES };
2032
2033 // When opening a pop-up while the application isn't active, Cocoa sends a spurious
2034 // `windowDidBecomeKey` message to the previous key window even though that window
2035 // isn't actually key. This causes a bug if the application is later activated while
2036 // the pop-up is still open, making it impossible to activate the previous key window
2037 // even if the pop-up gets closed. The only way to activate it again is to de-activate
2038 // the app and re-activate it, which is a pretty bad UX.
2039 // The following code detects the spurious event and invokes `resignKeyWindow`:
2040 // in theory, we're not supposed to invoke this method manually but it balances out
2041 // the spurious `becomeKeyWindow` event and helps us work around that bug.
2042 if selector == sel!(windowDidBecomeKey:) && !is_active {
2043 unsafe {
2044 let _: () = msg_send![lock.native_window, resignKeyWindow];
2045 return;
2046 }
2047 }
2048
2049 let executor = lock.executor.clone();
2050 drop(lock);
2051
2052 // When a window becomes active, trigger an immediate synchronous frame request to prevent
2053 // tab flicker when switching between windows in native tabs mode.
2054 //
2055 // This is only done on subsequent activations (not the first) to ensure the initial focus
2056 // path is properly established. Without this guard, the focus state would remain unset until
2057 // the first mouse click, causing keybindings to be non-functional.
2058 if selector == sel!(windowDidBecomeKey:) && is_active {
2059 let window_state = unsafe { get_window_state(this) };
2060 let mut lock = window_state.lock();
2061
2062 if lock.activated_least_once {
2063 if let Some(mut callback) = lock.request_frame_callback.take() {
2064 #[cfg(not(feature = "macos-blade"))]
2065 lock.renderer.set_presents_with_transaction(true);
2066 lock.stop_display_link();
2067 drop(lock);
2068 callback(Default::default());
2069
2070 let mut lock = window_state.lock();
2071 lock.request_frame_callback = Some(callback);
2072 #[cfg(not(feature = "macos-blade"))]
2073 lock.renderer.set_presents_with_transaction(false);
2074 lock.start_display_link();
2075 }
2076 } else {
2077 lock.activated_least_once = true;
2078 }
2079 }
2080
2081 executor
2082 .spawn(async move {
2083 let mut lock = window_state.as_ref().lock();
2084 if is_active {
2085 lock.move_traffic_light();
2086 }
2087
2088 if let Some(mut callback) = lock.activate_callback.take() {
2089 drop(lock);
2090 callback(is_active);
2091 window_state.lock().activate_callback = Some(callback);
2092 };
2093 })
2094 .detach();
2095}
2096
2097extern "C" fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL {
2098 let window_state = unsafe { get_window_state(this) };
2099 let mut lock = window_state.as_ref().lock();
2100 if let Some(mut callback) = lock.should_close_callback.take() {
2101 drop(lock);
2102 let should_close = callback();
2103 window_state.lock().should_close_callback = Some(callback);
2104 should_close as BOOL
2105 } else {
2106 YES
2107 }
2108}
2109
2110extern "C" fn close_window(this: &Object, _: Sel) {
2111 unsafe {
2112 let close_callback = {
2113 let window_state = get_window_state(this);
2114 let mut lock = window_state.as_ref().lock();
2115 lock.close_callback.take()
2116 };
2117
2118 if let Some(callback) = close_callback {
2119 callback();
2120 }
2121
2122 let _: () = msg_send![super(this, class!(NSWindow)), close];
2123 }
2124}
2125
2126extern "C" fn make_backing_layer(this: &Object, _: Sel) -> id {
2127 let window_state = unsafe { get_window_state(this) };
2128 let window_state = window_state.as_ref().lock();
2129 window_state.renderer.layer_ptr() as id
2130}
2131
2132extern "C" fn view_did_change_backing_properties(this: &Object, _: Sel) {
2133 let window_state = unsafe { get_window_state(this) };
2134 update_window_scale_factor(&window_state);
2135}
2136
2137extern "C" fn set_frame_size(this: &Object, _: Sel, size: NSSize) {
2138 let window_state = unsafe { get_window_state(this) };
2139 let mut lock = window_state.as_ref().lock();
2140
2141 let new_size = Size::<Pixels>::from(size);
2142 let old_size = unsafe {
2143 let old_frame: NSRect = msg_send![this, frame];
2144 Size::<Pixels>::from(old_frame.size)
2145 };
2146
2147 if old_size == new_size {
2148 return;
2149 }
2150
2151 unsafe {
2152 let _: () = msg_send![super(this, class!(NSView)), setFrameSize: size];
2153 }
2154
2155 let scale_factor = lock.scale_factor();
2156 let drawable_size = new_size.to_device_pixels(scale_factor);
2157 lock.renderer.update_drawable_size(drawable_size);
2158
2159 if let Some(mut callback) = lock.resize_callback.take() {
2160 let content_size = lock.content_size();
2161 let scale_factor = lock.scale_factor();
2162 drop(lock);
2163 callback(content_size, scale_factor);
2164 window_state.lock().resize_callback = Some(callback);
2165 };
2166}
2167
2168extern "C" fn display_layer(this: &Object, _: Sel, _: id) {
2169 let window_state = unsafe { get_window_state(this) };
2170 let mut lock = window_state.lock();
2171 if let Some(mut callback) = lock.request_frame_callback.take() {
2172 #[cfg(not(feature = "macos-blade"))]
2173 lock.renderer.set_presents_with_transaction(true);
2174 lock.stop_display_link();
2175 drop(lock);
2176 callback(Default::default());
2177
2178 let mut lock = window_state.lock();
2179 lock.request_frame_callback = Some(callback);
2180 #[cfg(not(feature = "macos-blade"))]
2181 lock.renderer.set_presents_with_transaction(false);
2182 lock.start_display_link();
2183 }
2184}
2185
2186unsafe extern "C" fn step(view: *mut c_void) {
2187 let view = view as id;
2188 let window_state = unsafe { get_window_state(&*view) };
2189 let mut lock = window_state.lock();
2190
2191 if let Some(mut callback) = lock.request_frame_callback.take() {
2192 drop(lock);
2193 callback(Default::default());
2194 window_state.lock().request_frame_callback = Some(callback);
2195 }
2196}
2197
2198extern "C" fn valid_attributes_for_marked_text(_: &Object, _: Sel) -> id {
2199 unsafe { msg_send![class!(NSArray), array] }
2200}
2201
2202extern "C" fn has_marked_text(this: &Object, _: Sel) -> BOOL {
2203 let has_marked_text_result =
2204 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
2205
2206 has_marked_text_result.is_some() as BOOL
2207}
2208
2209extern "C" fn marked_range(this: &Object, _: Sel) -> NSRange {
2210 let marked_range_result =
2211 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
2212
2213 marked_range_result.map_or(NSRange::invalid(), |range| range.into())
2214}
2215
2216extern "C" fn selected_range(this: &Object, _: Sel) -> NSRange {
2217 let selected_range_result = with_input_handler(this, |input_handler| {
2218 input_handler.selected_text_range(false)
2219 })
2220 .flatten();
2221
2222 selected_range_result.map_or(NSRange::invalid(), |selection| selection.range.into())
2223}
2224
2225extern "C" fn first_rect_for_character_range(
2226 this: &Object,
2227 _: Sel,
2228 range: NSRange,
2229 _: id,
2230) -> NSRect {
2231 let frame = get_frame(this);
2232 with_input_handler(this, |input_handler| {
2233 input_handler.bounds_for_range(range.to_range()?)
2234 })
2235 .flatten()
2236 .map_or(
2237 NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.)),
2238 |bounds| {
2239 NSRect::new(
2240 NSPoint::new(
2241 frame.origin.x + bounds.origin.x.0 as f64,
2242 frame.origin.y + frame.size.height
2243 - bounds.origin.y.0 as f64
2244 - bounds.size.height.0 as f64,
2245 ),
2246 NSSize::new(bounds.size.width.0 as f64, bounds.size.height.0 as f64),
2247 )
2248 },
2249 )
2250}
2251
2252fn get_frame(this: &Object) -> NSRect {
2253 unsafe {
2254 let state = get_window_state(this);
2255 let lock = state.lock();
2256 let mut frame = NSWindow::frame(lock.native_window);
2257 let content_layout_rect: CGRect = msg_send![lock.native_window, contentLayoutRect];
2258 let style_mask: NSWindowStyleMask = msg_send![lock.native_window, styleMask];
2259 if !style_mask.contains(NSWindowStyleMask::NSFullSizeContentViewWindowMask) {
2260 frame.origin.y -= frame.size.height - content_layout_rect.size.height;
2261 }
2262 frame
2263 }
2264}
2265
2266extern "C" fn insert_text(this: &Object, _: Sel, text: id, replacement_range: NSRange) {
2267 unsafe {
2268 let is_attributed_string: BOOL =
2269 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
2270 let text: id = if is_attributed_string == YES {
2271 msg_send![text, string]
2272 } else {
2273 text
2274 };
2275
2276 let text = text.to_str();
2277 let replacement_range = replacement_range.to_range();
2278 with_input_handler(this, |input_handler| {
2279 input_handler.replace_text_in_range(replacement_range, text)
2280 });
2281 }
2282}
2283
2284extern "C" fn set_marked_text(
2285 this: &Object,
2286 _: Sel,
2287 text: id,
2288 selected_range: NSRange,
2289 replacement_range: NSRange,
2290) {
2291 unsafe {
2292 let is_attributed_string: BOOL =
2293 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
2294 let text: id = if is_attributed_string == YES {
2295 msg_send![text, string]
2296 } else {
2297 text
2298 };
2299 let selected_range = selected_range.to_range();
2300 let replacement_range = replacement_range.to_range();
2301 let text = text.to_str();
2302 with_input_handler(this, |input_handler| {
2303 input_handler.replace_and_mark_text_in_range(replacement_range, text, selected_range)
2304 });
2305 }
2306}
2307extern "C" fn unmark_text(this: &Object, _: Sel) {
2308 with_input_handler(this, |input_handler| input_handler.unmark_text());
2309}
2310
2311extern "C" fn attributed_substring_for_proposed_range(
2312 this: &Object,
2313 _: Sel,
2314 range: NSRange,
2315 actual_range: *mut c_void,
2316) -> id {
2317 with_input_handler(this, |input_handler| {
2318 let range = range.to_range()?;
2319 if range.is_empty() {
2320 return None;
2321 }
2322 let mut adjusted: Option<Range<usize>> = None;
2323
2324 let selected_text = input_handler.text_for_range(range.clone(), &mut adjusted)?;
2325 if let Some(adjusted) = adjusted
2326 && adjusted != range
2327 {
2328 unsafe { (actual_range as *mut NSRange).write(NSRange::from(adjusted)) };
2329 }
2330 unsafe {
2331 let string: id = msg_send![class!(NSAttributedString), alloc];
2332 let string: id = msg_send![string, initWithString: ns_string(&selected_text)];
2333 Some(string)
2334 }
2335 })
2336 .flatten()
2337 .unwrap_or(nil)
2338}
2339
2340// We ignore which selector it asks us to do because the user may have
2341// bound the shortcut to something else.
2342extern "C" fn do_command_by_selector(this: &Object, _: Sel, _: Sel) {
2343 let state = unsafe { get_window_state(this) };
2344 let mut lock = state.as_ref().lock();
2345 let keystroke = lock.keystroke_for_do_command.take();
2346 let mut event_callback = lock.event_callback.take();
2347 drop(lock);
2348
2349 if let Some((keystroke, mut callback)) = keystroke.zip(event_callback.as_mut()) {
2350 let handled = (callback)(PlatformInput::KeyDown(KeyDownEvent {
2351 keystroke,
2352 is_held: false,
2353 prefer_character_input: false,
2354 }));
2355 state.as_ref().lock().do_command_handled = Some(!handled.propagate);
2356 }
2357
2358 state.as_ref().lock().event_callback = event_callback;
2359}
2360
2361extern "C" fn view_did_change_effective_appearance(this: &Object, _: Sel) {
2362 unsafe {
2363 let state = get_window_state(this);
2364 let mut lock = state.as_ref().lock();
2365 if let Some(mut callback) = lock.appearance_changed_callback.take() {
2366 drop(lock);
2367 callback();
2368 state.lock().appearance_changed_callback = Some(callback);
2369 }
2370 }
2371}
2372
2373extern "C" fn accepts_first_mouse(this: &Object, _: Sel, _: id) -> BOOL {
2374 let window_state = unsafe { get_window_state(this) };
2375 let mut lock = window_state.as_ref().lock();
2376 lock.first_mouse = true;
2377 YES
2378}
2379
2380extern "C" fn character_index_for_point(this: &Object, _: Sel, position: NSPoint) -> u64 {
2381 let position = screen_point_to_gpui_point(this, position);
2382 with_input_handler(this, |input_handler| {
2383 input_handler.character_index_for_point(position)
2384 })
2385 .flatten()
2386 .map(|index| index as u64)
2387 .unwrap_or(NSNotFound as u64)
2388}
2389
2390fn screen_point_to_gpui_point(this: &Object, position: NSPoint) -> Point<Pixels> {
2391 let frame = get_frame(this);
2392 let window_x = position.x - frame.origin.x;
2393 let window_y = frame.size.height - (position.y - frame.origin.y);
2394
2395 point(px(window_x as f32), px(window_y as f32))
2396}
2397
2398extern "C" fn dragging_entered(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
2399 let window_state = unsafe { get_window_state(this) };
2400 let position = drag_event_position(&window_state, dragging_info);
2401 let paths = external_paths_from_event(dragging_info);
2402 if let Some(event) =
2403 paths.map(|paths| PlatformInput::FileDrop(FileDropEvent::Entered { position, paths }))
2404 && send_new_event(&window_state, event)
2405 {
2406 window_state.lock().external_files_dragged = true;
2407 return NSDragOperationCopy;
2408 }
2409 NSDragOperationNone
2410}
2411
2412extern "C" fn dragging_updated(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
2413 let window_state = unsafe { get_window_state(this) };
2414 let position = drag_event_position(&window_state, dragging_info);
2415 if send_new_event(
2416 &window_state,
2417 PlatformInput::FileDrop(FileDropEvent::Pending { position }),
2418 ) {
2419 NSDragOperationCopy
2420 } else {
2421 NSDragOperationNone
2422 }
2423}
2424
2425extern "C" fn dragging_exited(this: &Object, _: Sel, _: id) {
2426 let window_state = unsafe { get_window_state(this) };
2427 send_new_event(
2428 &window_state,
2429 PlatformInput::FileDrop(FileDropEvent::Exited),
2430 );
2431 window_state.lock().external_files_dragged = false;
2432}
2433
2434extern "C" fn perform_drag_operation(this: &Object, _: Sel, dragging_info: id) -> BOOL {
2435 let window_state = unsafe { get_window_state(this) };
2436 let position = drag_event_position(&window_state, dragging_info);
2437 send_new_event(
2438 &window_state,
2439 PlatformInput::FileDrop(FileDropEvent::Submit { position }),
2440 )
2441 .to_objc()
2442}
2443
2444fn external_paths_from_event(dragging_info: *mut Object) -> Option<ExternalPaths> {
2445 let mut paths = SmallVec::new();
2446 let pasteboard: id = unsafe { msg_send![dragging_info, draggingPasteboard] };
2447 let filenames = unsafe { NSPasteboard::propertyListForType(pasteboard, NSFilenamesPboardType) };
2448 if filenames == nil {
2449 return None;
2450 }
2451 for file in unsafe { filenames.iter() } {
2452 let path = unsafe {
2453 let f = NSString::UTF8String(file);
2454 CStr::from_ptr(f).to_string_lossy().into_owned()
2455 };
2456 paths.push(PathBuf::from(path))
2457 }
2458 Some(ExternalPaths(paths))
2459}
2460
2461extern "C" fn conclude_drag_operation(this: &Object, _: Sel, _: id) {
2462 let window_state = unsafe { get_window_state(this) };
2463 send_new_event(
2464 &window_state,
2465 PlatformInput::FileDrop(FileDropEvent::Exited),
2466 );
2467}
2468
2469async fn synthetic_drag(
2470 window_state: Weak<Mutex<MacWindowState>>,
2471 drag_id: usize,
2472 event: MouseMoveEvent,
2473) {
2474 loop {
2475 Timer::after(Duration::from_millis(16)).await;
2476 if let Some(window_state) = window_state.upgrade() {
2477 let mut lock = window_state.lock();
2478 if lock.synthetic_drag_counter == drag_id {
2479 if let Some(mut callback) = lock.event_callback.take() {
2480 drop(lock);
2481 callback(PlatformInput::MouseMove(event.clone()));
2482 window_state.lock().event_callback = Some(callback);
2483 }
2484 } else {
2485 break;
2486 }
2487 }
2488 }
2489}
2490
2491fn send_new_event(window_state_lock: &Mutex<MacWindowState>, e: PlatformInput) -> bool {
2492 let window_state = window_state_lock.lock().event_callback.take();
2493 if let Some(mut callback) = window_state {
2494 callback(e);
2495 window_state_lock.lock().event_callback = Some(callback);
2496 true
2497 } else {
2498 false
2499 }
2500}
2501
2502fn drag_event_position(window_state: &Mutex<MacWindowState>, dragging_info: id) -> Point<Pixels> {
2503 let drag_location: NSPoint = unsafe { msg_send![dragging_info, draggingLocation] };
2504 convert_mouse_position(drag_location, window_state.lock().content_size().height)
2505}
2506
2507fn with_input_handler<F, R>(window: &Object, f: F) -> Option<R>
2508where
2509 F: FnOnce(&mut PlatformInputHandler) -> R,
2510{
2511 let window_state = unsafe { get_window_state(window) };
2512 let mut lock = window_state.as_ref().lock();
2513 if let Some(mut input_handler) = lock.input_handler.take() {
2514 drop(lock);
2515 let result = f(&mut input_handler);
2516 window_state.lock().input_handler = Some(input_handler);
2517 Some(result)
2518 } else {
2519 None
2520 }
2521}
2522
2523unsafe fn display_id_for_screen(screen: id) -> CGDirectDisplayID {
2524 unsafe {
2525 let device_description = NSScreen::deviceDescription(screen);
2526 let screen_number_key: id = ns_string("NSScreenNumber");
2527 let screen_number = device_description.objectForKey_(screen_number_key);
2528 let screen_number: NSUInteger = msg_send![screen_number, unsignedIntegerValue];
2529 screen_number as CGDirectDisplayID
2530 }
2531}
2532
2533extern "C" fn blurred_view_init_with_frame(this: &Object, _: Sel, frame: NSRect) -> id {
2534 unsafe {
2535 let view = msg_send![super(this, class!(NSVisualEffectView)), initWithFrame: frame];
2536 // Use a colorless semantic material. The default value `AppearanceBased`, though not
2537 // manually set, is deprecated.
2538 NSVisualEffectView::setMaterial_(view, NSVisualEffectMaterial::Selection);
2539 NSVisualEffectView::setState_(view, NSVisualEffectState::Active);
2540 view
2541 }
2542}
2543
2544extern "C" fn blurred_view_update_layer(this: &Object, _: Sel) {
2545 unsafe {
2546 let _: () = msg_send![super(this, class!(NSVisualEffectView)), updateLayer];
2547 let layer: id = msg_send![this, layer];
2548 if !layer.is_null() {
2549 remove_layer_background(layer);
2550 }
2551 }
2552}
2553
2554unsafe fn remove_layer_background(layer: id) {
2555 unsafe {
2556 let _: () = msg_send![layer, setBackgroundColor:nil];
2557
2558 let class_name: id = msg_send![layer, className];
2559 if class_name.isEqualToString("CAChameleonLayer") {
2560 // Remove the desktop tinting effect.
2561 let _: () = msg_send![layer, setHidden: YES];
2562 return;
2563 }
2564
2565 let filters: id = msg_send![layer, filters];
2566 if !filters.is_null() {
2567 // Remove the increased saturation.
2568 // The effect of a `CAFilter` or `CIFilter` is determined by its name, and the
2569 // `description` reflects its name and some parameters. Currently `NSVisualEffectView`
2570 // uses a `CAFilter` named "colorSaturate". If one day they switch to `CIFilter`, the
2571 // `description` will still contain "Saturat" ("... inputSaturation = ...").
2572 let test_string: id = ns_string("Saturat");
2573 let count = NSArray::count(filters);
2574 for i in 0..count {
2575 let description: id = msg_send![filters.objectAtIndex(i), description];
2576 let hit: BOOL = msg_send![description, containsString: test_string];
2577 if hit == NO {
2578 continue;
2579 }
2580
2581 let all_indices = NSRange {
2582 location: 0,
2583 length: count,
2584 };
2585 let indices: id = msg_send![class!(NSMutableIndexSet), indexSet];
2586 let _: () = msg_send![indices, addIndexesInRange: all_indices];
2587 let _: () = msg_send![indices, removeIndex:i];
2588 let filtered: id = msg_send![filters, objectsAtIndexes: indices];
2589 let _: () = msg_send![layer, setFilters: filtered];
2590 break;
2591 }
2592 }
2593
2594 let sublayers: id = msg_send![layer, sublayers];
2595 if !sublayers.is_null() {
2596 let count = NSArray::count(sublayers);
2597 for i in 0..count {
2598 let sublayer = sublayers.objectAtIndex(i);
2599 remove_layer_background(sublayer);
2600 }
2601 }
2602 }
2603}
2604
2605extern "C" fn add_titlebar_accessory_view_controller(this: &Object, _: Sel, view_controller: id) {
2606 unsafe {
2607 let _: () = msg_send![super(this, class!(NSWindow)), addTitlebarAccessoryViewController: view_controller];
2608
2609 // Hide the native tab bar and set its height to 0, since we render our own.
2610 let accessory_view: id = msg_send![view_controller, view];
2611 let _: () = msg_send![accessory_view, setHidden: YES];
2612 let mut frame: NSRect = msg_send![accessory_view, frame];
2613 frame.size.height = 0.0;
2614 let _: () = msg_send![accessory_view, setFrame: frame];
2615 }
2616}
2617
2618extern "C" fn move_tab_to_new_window(this: &Object, _: Sel, _: id) {
2619 unsafe {
2620 let _: () = msg_send![super(this, class!(NSWindow)), moveTabToNewWindow:nil];
2621
2622 let window_state = get_window_state(this);
2623 let mut lock = window_state.as_ref().lock();
2624 if let Some(mut callback) = lock.move_tab_to_new_window_callback.take() {
2625 drop(lock);
2626 callback();
2627 window_state.lock().move_tab_to_new_window_callback = Some(callback);
2628 }
2629 }
2630}
2631
2632extern "C" fn merge_all_windows(this: &Object, _: Sel, _: id) {
2633 unsafe {
2634 let _: () = msg_send![super(this, class!(NSWindow)), mergeAllWindows:nil];
2635
2636 let window_state = get_window_state(this);
2637 let mut lock = window_state.as_ref().lock();
2638 if let Some(mut callback) = lock.merge_all_windows_callback.take() {
2639 drop(lock);
2640 callback();
2641 window_state.lock().merge_all_windows_callback = Some(callback);
2642 }
2643 }
2644}
2645
2646extern "C" fn select_next_tab(this: &Object, _sel: Sel, _id: id) {
2647 let window_state = unsafe { get_window_state(this) };
2648 let mut lock = window_state.as_ref().lock();
2649 if let Some(mut callback) = lock.select_next_tab_callback.take() {
2650 drop(lock);
2651 callback();
2652 window_state.lock().select_next_tab_callback = Some(callback);
2653 }
2654}
2655
2656extern "C" fn select_previous_tab(this: &Object, _sel: Sel, _id: id) {
2657 let window_state = unsafe { get_window_state(this) };
2658 let mut lock = window_state.as_ref().lock();
2659 if let Some(mut callback) = lock.select_previous_tab_callback.take() {
2660 drop(lock);
2661 callback();
2662 window_state.lock().select_previous_tab_callback = Some(callback);
2663 }
2664}
2665
2666extern "C" fn toggle_tab_bar(this: &Object, _sel: Sel, _id: id) {
2667 unsafe {
2668 let _: () = msg_send![super(this, class!(NSWindow)), toggleTabBar:nil];
2669
2670 let window_state = get_window_state(this);
2671 let mut lock = window_state.as_ref().lock();
2672 lock.move_traffic_light();
2673
2674 if let Some(mut callback) = lock.toggle_tab_bar_callback.take() {
2675 drop(lock);
2676 callback();
2677 window_state.lock().toggle_tab_bar_callback = Some(callback);
2678 }
2679 }
2680}