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