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 let _: () = msg_send![alert, release];
1202 if let Some(done_tx) = done_tx.take() {
1203 let _ = done_tx.send(answer.try_into().unwrap());
1204 }
1205 });
1206 let block = block.copy();
1207 let native_window = self.0.lock().native_window;
1208 let executor = self.0.lock().executor.clone();
1209 executor
1210 .spawn(async move {
1211 let _: () = msg_send![
1212 alert,
1213 beginSheetModalForWindow: native_window
1214 completionHandler: block
1215 ];
1216 })
1217 .detach();
1218
1219 Some(done_rx)
1220 }
1221 }
1222
1223 fn activate(&self) {
1224 let window = self.0.lock().native_window;
1225 let executor = self.0.lock().executor.clone();
1226 executor
1227 .spawn(async move {
1228 unsafe {
1229 let _: () = msg_send![window, makeKeyAndOrderFront: nil];
1230 }
1231 })
1232 .detach();
1233 }
1234
1235 fn is_active(&self) -> bool {
1236 unsafe { self.0.lock().native_window.isKeyWindow() == YES }
1237 }
1238
1239 // is_hovered is unused on macOS. See Window::is_window_hovered.
1240 fn is_hovered(&self) -> bool {
1241 false
1242 }
1243
1244 fn set_title(&mut self, title: &str) {
1245 unsafe {
1246 let app = NSApplication::sharedApplication(nil);
1247 let window = self.0.lock().native_window;
1248 let title = ns_string(title);
1249 let _: () = msg_send![app, changeWindowsItem:window title:title filename:false];
1250 let _: () = msg_send![window, setTitle: title];
1251 self.0.lock().move_traffic_light();
1252 }
1253 }
1254
1255 fn get_title(&self) -> String {
1256 unsafe {
1257 let title: id = msg_send![self.0.lock().native_window, title];
1258 if title.is_null() {
1259 "".to_string()
1260 } else {
1261 title.to_str().to_string()
1262 }
1263 }
1264 }
1265
1266 fn set_app_id(&mut self, _app_id: &str) {}
1267
1268 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
1269 let mut this = self.0.as_ref().lock();
1270
1271 let opaque = background_appearance == WindowBackgroundAppearance::Opaque;
1272 this.renderer.update_transparency(!opaque);
1273
1274 unsafe {
1275 this.native_window.setOpaque_(opaque as BOOL);
1276 let background_color = if opaque {
1277 NSColor::colorWithSRGBRed_green_blue_alpha_(nil, 0f64, 0f64, 0f64, 1f64)
1278 } else {
1279 // Not using `+[NSColor clearColor]` to avoid broken shadow.
1280 NSColor::colorWithSRGBRed_green_blue_alpha_(nil, 0f64, 0f64, 0f64, 0.0001)
1281 };
1282 this.native_window.setBackgroundColor_(background_color);
1283
1284 if NSAppKitVersionNumber < NSAppKitVersionNumber12_0 {
1285 // Whether `-[NSVisualEffectView respondsToSelector:@selector(_updateProxyLayer)]`.
1286 // On macOS Catalina/Big Sur `NSVisualEffectView` doesn’t own concrete sublayers
1287 // but uses a `CAProxyLayer`. Use the legacy WindowServer API.
1288 let blur_radius = if background_appearance == WindowBackgroundAppearance::Blurred {
1289 80
1290 } else {
1291 0
1292 };
1293
1294 let window_number = this.native_window.windowNumber();
1295 CGSSetWindowBackgroundBlurRadius(CGSMainConnectionID(), window_number, blur_radius);
1296 } else {
1297 // On newer macOS `NSVisualEffectView` manages the effect layer directly. Using it
1298 // could have a better performance (it downsamples the backdrop) and more control
1299 // over the effect layer.
1300 if background_appearance != WindowBackgroundAppearance::Blurred {
1301 if let Some(blur_view) = this.blurred_view {
1302 NSView::removeFromSuperview(blur_view);
1303 this.blurred_view = None;
1304 }
1305 } else if this.blurred_view.is_none() {
1306 let content_view = this.native_window.contentView();
1307 let frame = NSView::bounds(content_view);
1308 let mut blur_view: id = msg_send![BLURRED_VIEW_CLASS, alloc];
1309 blur_view = NSView::initWithFrame_(blur_view, frame);
1310 blur_view.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable);
1311
1312 let _: () = msg_send![
1313 content_view,
1314 addSubview: blur_view
1315 positioned: NSWindowOrderingMode::NSWindowBelow
1316 relativeTo: nil
1317 ];
1318 this.blurred_view = Some(blur_view.autorelease());
1319 }
1320 }
1321 }
1322 }
1323
1324 fn set_edited(&mut self, edited: bool) {
1325 unsafe {
1326 let window = self.0.lock().native_window;
1327 msg_send![window, setDocumentEdited: edited as BOOL]
1328 }
1329
1330 // Changing the document edited state resets the traffic light position,
1331 // so we have to move it again.
1332 self.0.lock().move_traffic_light();
1333 }
1334
1335 fn show_character_palette(&self) {
1336 let this = self.0.lock();
1337 let window = this.native_window;
1338 this.executor
1339 .spawn(async move {
1340 unsafe {
1341 let app = NSApplication::sharedApplication(nil);
1342 let _: () = msg_send![app, orderFrontCharacterPalette: window];
1343 }
1344 })
1345 .detach();
1346 }
1347
1348 fn minimize(&self) {
1349 let window = self.0.lock().native_window;
1350 unsafe {
1351 window.miniaturize_(nil);
1352 }
1353 }
1354
1355 fn zoom(&self) {
1356 let this = self.0.lock();
1357 let window = this.native_window;
1358 this.executor
1359 .spawn(async move {
1360 unsafe {
1361 window.zoom_(nil);
1362 }
1363 })
1364 .detach();
1365 }
1366
1367 fn toggle_fullscreen(&self) {
1368 let this = self.0.lock();
1369 let window = this.native_window;
1370 this.executor
1371 .spawn(async move {
1372 unsafe {
1373 window.toggleFullScreen_(nil);
1374 }
1375 })
1376 .detach();
1377 }
1378
1379 fn is_fullscreen(&self) -> bool {
1380 let this = self.0.lock();
1381 let window = this.native_window;
1382
1383 unsafe {
1384 window
1385 .styleMask()
1386 .contains(NSWindowStyleMask::NSFullScreenWindowMask)
1387 }
1388 }
1389
1390 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
1391 self.0.as_ref().lock().request_frame_callback = Some(callback);
1392 }
1393
1394 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>) {
1395 self.0.as_ref().lock().event_callback = Some(callback);
1396 }
1397
1398 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1399 self.0.as_ref().lock().activate_callback = Some(callback);
1400 }
1401
1402 fn on_hover_status_change(&self, _: Box<dyn FnMut(bool)>) {}
1403
1404 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
1405 self.0.as_ref().lock().resize_callback = Some(callback);
1406 }
1407
1408 fn on_moved(&self, callback: Box<dyn FnMut()>) {
1409 self.0.as_ref().lock().moved_callback = Some(callback);
1410 }
1411
1412 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
1413 self.0.as_ref().lock().should_close_callback = Some(callback);
1414 }
1415
1416 fn on_close(&self, callback: Box<dyn FnOnce()>) {
1417 self.0.as_ref().lock().close_callback = Some(callback);
1418 }
1419
1420 fn on_hit_test_window_control(&self, _callback: Box<dyn FnMut() -> Option<WindowControlArea>>) {
1421 }
1422
1423 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
1424 self.0.lock().appearance_changed_callback = Some(callback);
1425 }
1426
1427 fn tabbed_windows(&self) -> Option<Vec<SystemWindowTab>> {
1428 unsafe {
1429 let windows: id = msg_send![self.0.lock().native_window, tabbedWindows];
1430 if windows.is_null() {
1431 return None;
1432 }
1433
1434 let count: NSUInteger = msg_send![windows, count];
1435 let mut result = Vec::new();
1436 for i in 0..count {
1437 let window: id = msg_send![windows, objectAtIndex:i];
1438 if msg_send![window, isKindOfClass: WINDOW_CLASS] {
1439 let handle = get_window_state(&*window).lock().handle;
1440 let title: id = msg_send![window, title];
1441 let title = SharedString::from(title.to_str().to_string());
1442
1443 result.push(SystemWindowTab::new(title, handle));
1444 }
1445 }
1446
1447 Some(result)
1448 }
1449 }
1450
1451 fn tab_bar_visible(&self) -> bool {
1452 unsafe {
1453 let tab_group: id = msg_send![self.0.lock().native_window, tabGroup];
1454 if tab_group.is_null() {
1455 false
1456 } else {
1457 let tab_bar_visible: BOOL = msg_send![tab_group, isTabBarVisible];
1458 tab_bar_visible == YES
1459 }
1460 }
1461 }
1462
1463 fn on_move_tab_to_new_window(&self, callback: Box<dyn FnMut()>) {
1464 self.0.as_ref().lock().move_tab_to_new_window_callback = Some(callback);
1465 }
1466
1467 fn on_merge_all_windows(&self, callback: Box<dyn FnMut()>) {
1468 self.0.as_ref().lock().merge_all_windows_callback = Some(callback);
1469 }
1470
1471 fn on_select_next_tab(&self, callback: Box<dyn FnMut()>) {
1472 self.0.as_ref().lock().select_next_tab_callback = Some(callback);
1473 }
1474
1475 fn on_select_previous_tab(&self, callback: Box<dyn FnMut()>) {
1476 self.0.as_ref().lock().select_previous_tab_callback = Some(callback);
1477 }
1478
1479 fn on_toggle_tab_bar(&self, callback: Box<dyn FnMut()>) {
1480 self.0.as_ref().lock().toggle_tab_bar_callback = Some(callback);
1481 }
1482
1483 fn draw(&self, scene: &crate::Scene) {
1484 let mut this = self.0.lock();
1485 this.renderer.draw(scene);
1486 }
1487
1488 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
1489 self.0.lock().renderer.sprite_atlas().clone()
1490 }
1491
1492 fn gpu_specs(&self) -> Option<crate::GpuSpecs> {
1493 None
1494 }
1495
1496 fn update_ime_position(&self, _bounds: Bounds<Pixels>) {
1497 let executor = self.0.lock().executor.clone();
1498 executor
1499 .spawn(async move {
1500 unsafe {
1501 let input_context: id =
1502 msg_send![class!(NSTextInputContext), currentInputContext];
1503 if input_context.is_null() {
1504 return;
1505 }
1506 let _: () = msg_send![input_context, invalidateCharacterCoordinates];
1507 }
1508 })
1509 .detach()
1510 }
1511
1512 fn titlebar_double_click(&self) {
1513 let this = self.0.lock();
1514 let window = this.native_window;
1515 this.executor
1516 .spawn(async move {
1517 unsafe {
1518 let defaults: id = NSUserDefaults::standardUserDefaults();
1519 let domain = ns_string("NSGlobalDomain");
1520 let key = ns_string("AppleActionOnDoubleClick");
1521
1522 let dict: id = msg_send![defaults, persistentDomainForName: domain];
1523 let action: id = if !dict.is_null() {
1524 msg_send![dict, objectForKey: key]
1525 } else {
1526 nil
1527 };
1528
1529 let action_str = if !action.is_null() {
1530 CStr::from_ptr(NSString::UTF8String(action)).to_string_lossy()
1531 } else {
1532 "".into()
1533 };
1534
1535 match action_str.as_ref() {
1536 "None" => {
1537 // "Do Nothing" selected, so do no action
1538 }
1539 "Minimize" => {
1540 window.miniaturize_(nil);
1541 }
1542 "Maximize" => {
1543 window.zoom_(nil);
1544 }
1545 "Fill" => {
1546 // There is no documented API for "Fill" action, so we'll just zoom the window
1547 window.zoom_(nil);
1548 }
1549 _ => {
1550 window.zoom_(nil);
1551 }
1552 }
1553 }
1554 })
1555 .detach();
1556 }
1557
1558 fn start_window_move(&self) {
1559 let this = self.0.lock();
1560 let window = this.native_window;
1561
1562 unsafe {
1563 let app = NSApplication::sharedApplication(nil);
1564 let mut event: id = msg_send![app, currentEvent];
1565 let _: () = msg_send![window, performWindowDragWithEvent: event];
1566 }
1567 }
1568
1569 #[cfg(any(test, feature = "test-support"))]
1570 fn native_window_id(&self) -> Option<u32> {
1571 Some(self.window_number())
1572 }
1573}
1574
1575impl rwh::HasWindowHandle for MacWindow {
1576 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
1577 // SAFETY: The AppKitWindowHandle is a wrapper around a pointer to an NSView
1578 unsafe {
1579 Ok(rwh::WindowHandle::borrow_raw(rwh::RawWindowHandle::AppKit(
1580 rwh::AppKitWindowHandle::new(self.0.lock().native_view.cast()),
1581 )))
1582 }
1583 }
1584}
1585
1586impl rwh::HasDisplayHandle for MacWindow {
1587 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
1588 // SAFETY: This is a no-op on macOS
1589 unsafe {
1590 Ok(rwh::DisplayHandle::borrow_raw(
1591 rwh::AppKitDisplayHandle::new().into(),
1592 ))
1593 }
1594 }
1595}
1596
1597fn get_scale_factor(native_window: id) -> f32 {
1598 let factor = unsafe {
1599 let screen: id = msg_send![native_window, screen];
1600 if screen.is_null() {
1601 return 2.0;
1602 }
1603 NSScreen::backingScaleFactor(screen) as f32
1604 };
1605
1606 // We are not certain what triggers this, but it seems that sometimes
1607 // this method would return 0 (https://github.com/zed-industries/zed/issues/6412)
1608 // It seems most likely that this would happen if the window has no screen
1609 // (if it is off-screen), though we'd expect to see viewDidChangeBackingProperties before
1610 // it was rendered for real.
1611 // Regardless, attempt to avoid the issue here.
1612 if factor == 0.0 { 2. } else { factor }
1613}
1614
1615unsafe fn get_window_state(object: &Object) -> Arc<Mutex<MacWindowState>> {
1616 unsafe {
1617 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1618 let rc1 = Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1619 let rc2 = rc1.clone();
1620 mem::forget(rc1);
1621 rc2
1622 }
1623}
1624
1625unsafe fn drop_window_state(object: &Object) {
1626 unsafe {
1627 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1628 Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1629 }
1630}
1631
1632extern "C" fn yes(_: &Object, _: Sel) -> BOOL {
1633 YES
1634}
1635
1636extern "C" fn dealloc_window(this: &Object, _: Sel) {
1637 unsafe {
1638 drop_window_state(this);
1639 let _: () = msg_send![super(this, class!(NSWindow)), dealloc];
1640 }
1641}
1642
1643extern "C" fn dealloc_view(this: &Object, _: Sel) {
1644 unsafe {
1645 drop_window_state(this);
1646 let _: () = msg_send![super(this, class!(NSView)), dealloc];
1647 }
1648}
1649
1650extern "C" fn handle_key_equivalent(this: &Object, _: Sel, native_event: id) -> BOOL {
1651 handle_key_event(this, native_event, true)
1652}
1653
1654extern "C" fn handle_key_down(this: &Object, _: Sel, native_event: id) {
1655 handle_key_event(this, native_event, false);
1656}
1657
1658extern "C" fn handle_key_up(this: &Object, _: Sel, native_event: id) {
1659 handle_key_event(this, native_event, false);
1660}
1661
1662// Things to test if you're modifying this method:
1663// U.S. layout:
1664// - The IME consumes characters like 'j' and 'k', which makes paging through `less` in
1665// the terminal behave incorrectly by default. This behavior should be patched by our
1666// IME integration
1667// - `alt-t` should open the tasks menu
1668// - In vim mode, this keybinding should work:
1669// ```
1670// {
1671// "context": "Editor && vim_mode == insert",
1672// "bindings": {"j j": "vim::NormalBefore"}
1673// }
1674// ```
1675// and typing 'j k' in insert mode with this keybinding should insert the two characters
1676// Brazilian layout:
1677// - `" space` should create an unmarked quote
1678// - `" backspace` should delete the marked quote
1679// - `" "`should create an unmarked quote and a second marked quote
1680// - `" up` should insert a quote, unmark it, and move up one line
1681// - `" cmd-down` should insert a quote, unmark it, and move to the end of the file
1682// - `cmd-ctrl-space` and clicking on an emoji should type it
1683// Czech (QWERTY) layout:
1684// - in vim mode `option-4` should go to end of line (same as $)
1685// Japanese (Romaji) layout:
1686// - type `a i left down up enter enter` should create an unmarked text "愛"
1687extern "C" fn handle_key_event(this: &Object, native_event: id, key_equivalent: bool) -> BOOL {
1688 let window_state = unsafe { get_window_state(this) };
1689 let mut lock = window_state.as_ref().lock();
1690
1691 let window_height = lock.content_size().height;
1692 let event = unsafe { PlatformInput::from_native(native_event, Some(window_height)) };
1693
1694 let Some(event) = event else {
1695 return NO;
1696 };
1697
1698 let run_callback = |event: PlatformInput| -> BOOL {
1699 let mut callback = window_state.as_ref().lock().event_callback.take();
1700 let handled: BOOL = if let Some(callback) = callback.as_mut() {
1701 !callback(event).propagate as BOOL
1702 } else {
1703 NO
1704 };
1705 window_state.as_ref().lock().event_callback = callback;
1706 handled
1707 };
1708
1709 match event {
1710 PlatformInput::KeyDown(mut key_down_event) => {
1711 // For certain keystrokes, macOS will first dispatch a "key equivalent" event.
1712 // If that event isn't handled, it will then dispatch a "key down" event. GPUI
1713 // makes no distinction between these two types of events, so we need to ignore
1714 // the "key down" event if we've already just processed its "key equivalent" version.
1715 if key_equivalent {
1716 lock.last_key_equivalent = Some(key_down_event.clone());
1717 } else if lock.last_key_equivalent.take().as_ref() == Some(&key_down_event) {
1718 return NO;
1719 }
1720
1721 drop(lock);
1722
1723 let is_composing =
1724 with_input_handler(this, |input_handler| input_handler.marked_text_range())
1725 .flatten()
1726 .is_some();
1727
1728 // If we're composing, send the key to the input handler first;
1729 // otherwise we only send to the input handler if we don't have a matching binding.
1730 // The input handler may call `do_command_by_selector` if it doesn't know how to handle
1731 // a key. If it does so, it will return YES so we won't send the key twice.
1732 // We also do this for non-printing keys (like arrow keys and escape) as the IME menu
1733 // may need them even if there is no marked text;
1734 // however we skip keys with control or the input handler adds control-characters to the buffer.
1735 // and keys with function, as the input handler swallows them.
1736 if is_composing
1737 || (key_down_event.keystroke.key_char.is_none()
1738 && !key_down_event.keystroke.modifiers.control
1739 && !key_down_event.keystroke.modifiers.function)
1740 {
1741 {
1742 let mut lock = window_state.as_ref().lock();
1743 lock.keystroke_for_do_command = Some(key_down_event.keystroke.clone());
1744 lock.do_command_handled.take();
1745 drop(lock);
1746 }
1747
1748 let handled: BOOL = unsafe {
1749 let input_context: id = msg_send![this, inputContext];
1750 msg_send![input_context, handleEvent: native_event]
1751 };
1752 window_state.as_ref().lock().keystroke_for_do_command.take();
1753 if let Some(handled) = window_state.as_ref().lock().do_command_handled.take() {
1754 return handled as BOOL;
1755 } else if handled == YES {
1756 return YES;
1757 }
1758
1759 let handled = run_callback(PlatformInput::KeyDown(key_down_event));
1760 return handled;
1761 }
1762
1763 let handled = run_callback(PlatformInput::KeyDown(key_down_event.clone()));
1764 if handled == YES {
1765 return YES;
1766 }
1767
1768 if key_down_event.is_held
1769 && let Some(key_char) = key_down_event.keystroke.key_char.as_ref()
1770 {
1771 let handled = with_input_handler(this, |input_handler| {
1772 if !input_handler.apple_press_and_hold_enabled() {
1773 input_handler.replace_text_in_range(None, key_char);
1774 return YES;
1775 }
1776 NO
1777 });
1778 if handled == Some(YES) {
1779 return YES;
1780 }
1781 }
1782
1783 // Don't send key equivalents to the input handler if there are key modifiers other
1784 // than Function key, or macOS shortcuts like cmd-` will stop working.
1785 if key_equivalent && key_down_event.keystroke.modifiers != Modifiers::function() {
1786 return NO;
1787 }
1788
1789 unsafe {
1790 let input_context: id = msg_send![this, inputContext];
1791 msg_send![input_context, handleEvent: native_event]
1792 }
1793 }
1794
1795 PlatformInput::KeyUp(_) => {
1796 drop(lock);
1797 run_callback(event)
1798 }
1799
1800 _ => NO,
1801 }
1802}
1803
1804extern "C" fn handle_view_event(this: &Object, _: Sel, native_event: id) {
1805 let window_state = unsafe { get_window_state(this) };
1806 let weak_window_state = Arc::downgrade(&window_state);
1807 let mut lock = window_state.as_ref().lock();
1808 let window_height = lock.content_size().height;
1809 let event = unsafe { PlatformInput::from_native(native_event, Some(window_height)) };
1810
1811 if let Some(mut event) = event {
1812 match &mut event {
1813 PlatformInput::MouseDown(
1814 event @ MouseDownEvent {
1815 button: MouseButton::Left,
1816 modifiers: Modifiers { control: true, .. },
1817 ..
1818 },
1819 ) => {
1820 // On mac, a ctrl-left click should be handled as a right click.
1821 *event = MouseDownEvent {
1822 button: MouseButton::Right,
1823 modifiers: Modifiers {
1824 control: false,
1825 ..event.modifiers
1826 },
1827 click_count: 1,
1828 ..*event
1829 };
1830 }
1831
1832 // Handles focusing click.
1833 PlatformInput::MouseDown(
1834 event @ MouseDownEvent {
1835 button: MouseButton::Left,
1836 ..
1837 },
1838 ) if (lock.first_mouse) => {
1839 *event = MouseDownEvent {
1840 first_mouse: true,
1841 ..*event
1842 };
1843 lock.first_mouse = false;
1844 }
1845
1846 // Because we map a ctrl-left_down to a right_down -> right_up let's ignore
1847 // the ctrl-left_up to avoid having a mismatch in button down/up events if the
1848 // user is still holding ctrl when releasing the left mouse button
1849 PlatformInput::MouseUp(
1850 event @ MouseUpEvent {
1851 button: MouseButton::Left,
1852 modifiers: Modifiers { control: true, .. },
1853 ..
1854 },
1855 ) => {
1856 *event = MouseUpEvent {
1857 button: MouseButton::Right,
1858 modifiers: Modifiers {
1859 control: false,
1860 ..event.modifiers
1861 },
1862 click_count: 1,
1863 ..*event
1864 };
1865 }
1866
1867 _ => {}
1868 };
1869
1870 match &event {
1871 PlatformInput::MouseDown(_) => {
1872 drop(lock);
1873 unsafe {
1874 let input_context: id = msg_send![this, inputContext];
1875 msg_send![input_context, handleEvent: native_event]
1876 }
1877 lock = window_state.as_ref().lock();
1878 }
1879 PlatformInput::MouseMove(
1880 event @ MouseMoveEvent {
1881 pressed_button: Some(_),
1882 ..
1883 },
1884 ) => {
1885 // Synthetic drag is used for selecting long buffer contents while buffer is being scrolled.
1886 // External file drag and drop is able to emit its own synthetic mouse events which will conflict
1887 // with these ones.
1888 if !lock.external_files_dragged {
1889 lock.synthetic_drag_counter += 1;
1890 let executor = lock.executor.clone();
1891 executor
1892 .spawn(synthetic_drag(
1893 weak_window_state,
1894 lock.synthetic_drag_counter,
1895 event.clone(),
1896 ))
1897 .detach();
1898 }
1899 }
1900
1901 PlatformInput::MouseUp(MouseUpEvent { .. }) => {
1902 lock.synthetic_drag_counter += 1;
1903 }
1904
1905 PlatformInput::ModifiersChanged(ModifiersChangedEvent {
1906 modifiers,
1907 capslock,
1908 }) => {
1909 // Only raise modifiers changed event when they have actually changed
1910 if let Some(PlatformInput::ModifiersChanged(ModifiersChangedEvent {
1911 modifiers: prev_modifiers,
1912 capslock: prev_capslock,
1913 })) = &lock.previous_modifiers_changed_event
1914 && prev_modifiers == modifiers
1915 && prev_capslock == capslock
1916 {
1917 return;
1918 }
1919
1920 lock.previous_modifiers_changed_event = Some(event.clone());
1921 }
1922
1923 _ => {}
1924 }
1925
1926 if let Some(mut callback) = lock.event_callback.take() {
1927 drop(lock);
1928 callback(event);
1929 window_state.lock().event_callback = Some(callback);
1930 }
1931 }
1932}
1933
1934extern "C" fn window_did_change_occlusion_state(this: &Object, _: Sel, _: id) {
1935 let window_state = unsafe { get_window_state(this) };
1936 let lock = &mut *window_state.lock();
1937 unsafe {
1938 if lock
1939 .native_window
1940 .occlusionState()
1941 .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible)
1942 {
1943 lock.move_traffic_light();
1944 lock.start_display_link();
1945 } else {
1946 lock.stop_display_link();
1947 }
1948 }
1949}
1950
1951extern "C" fn window_did_resize(this: &Object, _: Sel, _: id) {
1952 let window_state = unsafe { get_window_state(this) };
1953 window_state.as_ref().lock().move_traffic_light();
1954}
1955
1956extern "C" fn window_will_enter_fullscreen(this: &Object, _: Sel, _: id) {
1957 let window_state = unsafe { get_window_state(this) };
1958 let mut lock = window_state.as_ref().lock();
1959 lock.fullscreen_restore_bounds = lock.bounds();
1960
1961 let min_version = NSOperatingSystemVersion::new(15, 3, 0);
1962
1963 if is_macos_version_at_least(min_version) {
1964 unsafe {
1965 lock.native_window.setTitlebarAppearsTransparent_(NO);
1966 }
1967 }
1968}
1969
1970extern "C" fn window_will_exit_fullscreen(this: &Object, _: Sel, _: id) {
1971 let window_state = unsafe { get_window_state(this) };
1972 let mut lock = window_state.as_ref().lock();
1973
1974 let min_version = NSOperatingSystemVersion::new(15, 3, 0);
1975
1976 if is_macos_version_at_least(min_version) && lock.transparent_titlebar {
1977 unsafe {
1978 lock.native_window.setTitlebarAppearsTransparent_(YES);
1979 }
1980 }
1981}
1982
1983pub(crate) fn is_macos_version_at_least(version: NSOperatingSystemVersion) -> bool {
1984 unsafe { NSProcessInfo::processInfo(nil).isOperatingSystemAtLeastVersion(version) }
1985}
1986
1987extern "C" fn window_did_move(this: &Object, _: Sel, _: id) {
1988 let window_state = unsafe { get_window_state(this) };
1989 let mut lock = window_state.as_ref().lock();
1990 if let Some(mut callback) = lock.moved_callback.take() {
1991 drop(lock);
1992 callback();
1993 window_state.lock().moved_callback = Some(callback);
1994 }
1995}
1996
1997// Update the window scale factor and drawable size, and call the resize callback if any.
1998fn update_window_scale_factor(window_state: &Arc<Mutex<MacWindowState>>) {
1999 let mut lock = window_state.as_ref().lock();
2000 let scale_factor = lock.scale_factor();
2001 let size = lock.content_size();
2002 let drawable_size = size.to_device_pixels(scale_factor);
2003 unsafe {
2004 let _: () = msg_send![
2005 lock.renderer.layer(),
2006 setContentsScale: scale_factor as f64
2007 ];
2008 }
2009
2010 lock.renderer.update_drawable_size(drawable_size);
2011
2012 if let Some(mut callback) = lock.resize_callback.take() {
2013 let content_size = lock.content_size();
2014 let scale_factor = lock.scale_factor();
2015 drop(lock);
2016 callback(content_size, scale_factor);
2017 window_state.as_ref().lock().resize_callback = Some(callback);
2018 };
2019}
2020
2021extern "C" fn window_did_change_screen(this: &Object, _: Sel, _: id) {
2022 let window_state = unsafe { get_window_state(this) };
2023 let mut lock = window_state.as_ref().lock();
2024 lock.start_display_link();
2025 drop(lock);
2026 update_window_scale_factor(&window_state);
2027}
2028
2029extern "C" fn window_did_change_key_status(this: &Object, selector: Sel, _: id) {
2030 let window_state = unsafe { get_window_state(this) };
2031 let mut lock = window_state.lock();
2032 let is_active = unsafe { lock.native_window.isKeyWindow() == YES };
2033
2034 // When opening a pop-up while the application isn't active, Cocoa sends a spurious
2035 // `windowDidBecomeKey` message to the previous key window even though that window
2036 // isn't actually key. This causes a bug if the application is later activated while
2037 // the pop-up is still open, making it impossible to activate the previous key window
2038 // even if the pop-up gets closed. The only way to activate it again is to de-activate
2039 // the app and re-activate it, which is a pretty bad UX.
2040 // The following code detects the spurious event and invokes `resignKeyWindow`:
2041 // in theory, we're not supposed to invoke this method manually but it balances out
2042 // the spurious `becomeKeyWindow` event and helps us work around that bug.
2043 if selector == sel!(windowDidBecomeKey:) && !is_active {
2044 unsafe {
2045 let _: () = msg_send![lock.native_window, resignKeyWindow];
2046 return;
2047 }
2048 }
2049
2050 let executor = lock.executor.clone();
2051 drop(lock);
2052
2053 // When a window becomes active, trigger an immediate synchronous frame request to prevent
2054 // tab flicker when switching between windows in native tabs mode.
2055 //
2056 // This is only done on subsequent activations (not the first) to ensure the initial focus
2057 // path is properly established. Without this guard, the focus state would remain unset until
2058 // the first mouse click, causing keybindings to be non-functional.
2059 if selector == sel!(windowDidBecomeKey:) && is_active {
2060 let window_state = unsafe { get_window_state(this) };
2061 let mut lock = window_state.lock();
2062
2063 if lock.activated_least_once {
2064 if let Some(mut callback) = lock.request_frame_callback.take() {
2065 #[cfg(not(feature = "macos-blade"))]
2066 lock.renderer.set_presents_with_transaction(true);
2067 lock.stop_display_link();
2068 drop(lock);
2069 callback(Default::default());
2070
2071 let mut lock = window_state.lock();
2072 lock.request_frame_callback = Some(callback);
2073 #[cfg(not(feature = "macos-blade"))]
2074 lock.renderer.set_presents_with_transaction(false);
2075 lock.start_display_link();
2076 }
2077 } else {
2078 lock.activated_least_once = true;
2079 }
2080 }
2081
2082 executor
2083 .spawn(async move {
2084 let mut lock = window_state.as_ref().lock();
2085 if is_active {
2086 lock.move_traffic_light();
2087 }
2088
2089 if let Some(mut callback) = lock.activate_callback.take() {
2090 drop(lock);
2091 callback(is_active);
2092 window_state.lock().activate_callback = Some(callback);
2093 };
2094 })
2095 .detach();
2096}
2097
2098extern "C" fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL {
2099 let window_state = unsafe { get_window_state(this) };
2100 let mut lock = window_state.as_ref().lock();
2101 if let Some(mut callback) = lock.should_close_callback.take() {
2102 drop(lock);
2103 let should_close = callback();
2104 window_state.lock().should_close_callback = Some(callback);
2105 should_close as BOOL
2106 } else {
2107 YES
2108 }
2109}
2110
2111extern "C" fn close_window(this: &Object, _: Sel) {
2112 unsafe {
2113 let close_callback = {
2114 let window_state = get_window_state(this);
2115 let mut lock = window_state.as_ref().lock();
2116 lock.close_callback.take()
2117 };
2118
2119 if let Some(callback) = close_callback {
2120 callback();
2121 }
2122
2123 let _: () = msg_send![super(this, class!(NSWindow)), close];
2124 }
2125}
2126
2127extern "C" fn make_backing_layer(this: &Object, _: Sel) -> id {
2128 let window_state = unsafe { get_window_state(this) };
2129 let window_state = window_state.as_ref().lock();
2130 window_state.renderer.layer_ptr() as id
2131}
2132
2133extern "C" fn view_did_change_backing_properties(this: &Object, _: Sel) {
2134 let window_state = unsafe { get_window_state(this) };
2135 update_window_scale_factor(&window_state);
2136}
2137
2138extern "C" fn set_frame_size(this: &Object, _: Sel, size: NSSize) {
2139 let window_state = unsafe { get_window_state(this) };
2140 let mut lock = window_state.as_ref().lock();
2141
2142 let new_size = Size::<Pixels>::from(size);
2143 let old_size = unsafe {
2144 let old_frame: NSRect = msg_send![this, frame];
2145 Size::<Pixels>::from(old_frame.size)
2146 };
2147
2148 if old_size == new_size {
2149 return;
2150 }
2151
2152 unsafe {
2153 let _: () = msg_send![super(this, class!(NSView)), setFrameSize: size];
2154 }
2155
2156 let scale_factor = lock.scale_factor();
2157 let drawable_size = new_size.to_device_pixels(scale_factor);
2158 lock.renderer.update_drawable_size(drawable_size);
2159
2160 if let Some(mut callback) = lock.resize_callback.take() {
2161 let content_size = lock.content_size();
2162 let scale_factor = lock.scale_factor();
2163 drop(lock);
2164 callback(content_size, scale_factor);
2165 window_state.lock().resize_callback = Some(callback);
2166 };
2167}
2168
2169extern "C" fn display_layer(this: &Object, _: Sel, _: id) {
2170 let window_state = unsafe { get_window_state(this) };
2171 let mut lock = window_state.lock();
2172 if let Some(mut callback) = lock.request_frame_callback.take() {
2173 #[cfg(not(feature = "macos-blade"))]
2174 lock.renderer.set_presents_with_transaction(true);
2175 lock.stop_display_link();
2176 drop(lock);
2177 callback(Default::default());
2178
2179 let mut lock = window_state.lock();
2180 lock.request_frame_callback = Some(callback);
2181 #[cfg(not(feature = "macos-blade"))]
2182 lock.renderer.set_presents_with_transaction(false);
2183 lock.start_display_link();
2184 }
2185}
2186
2187unsafe extern "C" fn step(view: *mut c_void) {
2188 let view = view as id;
2189 let window_state = unsafe { get_window_state(&*view) };
2190 let mut lock = window_state.lock();
2191
2192 if let Some(mut callback) = lock.request_frame_callback.take() {
2193 drop(lock);
2194 callback(Default::default());
2195 window_state.lock().request_frame_callback = Some(callback);
2196 }
2197}
2198
2199extern "C" fn valid_attributes_for_marked_text(_: &Object, _: Sel) -> id {
2200 unsafe { msg_send![class!(NSArray), array] }
2201}
2202
2203extern "C" fn has_marked_text(this: &Object, _: Sel) -> BOOL {
2204 let has_marked_text_result =
2205 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
2206
2207 has_marked_text_result.is_some() as BOOL
2208}
2209
2210extern "C" fn marked_range(this: &Object, _: Sel) -> NSRange {
2211 let marked_range_result =
2212 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
2213
2214 marked_range_result.map_or(NSRange::invalid(), |range| range.into())
2215}
2216
2217extern "C" fn selected_range(this: &Object, _: Sel) -> NSRange {
2218 let selected_range_result = with_input_handler(this, |input_handler| {
2219 input_handler.selected_text_range(false)
2220 })
2221 .flatten();
2222
2223 selected_range_result.map_or(NSRange::invalid(), |selection| selection.range.into())
2224}
2225
2226extern "C" fn first_rect_for_character_range(
2227 this: &Object,
2228 _: Sel,
2229 range: NSRange,
2230 _: id,
2231) -> NSRect {
2232 let frame = get_frame(this);
2233 with_input_handler(this, |input_handler| {
2234 input_handler.bounds_for_range(range.to_range()?)
2235 })
2236 .flatten()
2237 .map_or(
2238 NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.)),
2239 |bounds| {
2240 NSRect::new(
2241 NSPoint::new(
2242 frame.origin.x + bounds.origin.x.0 as f64,
2243 frame.origin.y + frame.size.height
2244 - bounds.origin.y.0 as f64
2245 - bounds.size.height.0 as f64,
2246 ),
2247 NSSize::new(bounds.size.width.0 as f64, bounds.size.height.0 as f64),
2248 )
2249 },
2250 )
2251}
2252
2253fn get_frame(this: &Object) -> NSRect {
2254 unsafe {
2255 let state = get_window_state(this);
2256 let lock = state.lock();
2257 let mut frame = NSWindow::frame(lock.native_window);
2258 let content_layout_rect: CGRect = msg_send![lock.native_window, contentLayoutRect];
2259 let style_mask: NSWindowStyleMask = msg_send![lock.native_window, styleMask];
2260 if !style_mask.contains(NSWindowStyleMask::NSFullSizeContentViewWindowMask) {
2261 frame.origin.y -= frame.size.height - content_layout_rect.size.height;
2262 }
2263 frame
2264 }
2265}
2266
2267extern "C" fn insert_text(this: &Object, _: Sel, text: id, replacement_range: NSRange) {
2268 unsafe {
2269 let is_attributed_string: BOOL =
2270 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
2271 let text: id = if is_attributed_string == YES {
2272 msg_send![text, string]
2273 } else {
2274 text
2275 };
2276
2277 let text = text.to_str();
2278 let replacement_range = replacement_range.to_range();
2279 with_input_handler(this, |input_handler| {
2280 input_handler.replace_text_in_range(replacement_range, text)
2281 });
2282 }
2283}
2284
2285extern "C" fn set_marked_text(
2286 this: &Object,
2287 _: Sel,
2288 text: id,
2289 selected_range: NSRange,
2290 replacement_range: NSRange,
2291) {
2292 unsafe {
2293 let is_attributed_string: BOOL =
2294 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
2295 let text: id = if is_attributed_string == YES {
2296 msg_send![text, string]
2297 } else {
2298 text
2299 };
2300 let selected_range = selected_range.to_range();
2301 let replacement_range = replacement_range.to_range();
2302 let text = text.to_str();
2303 with_input_handler(this, |input_handler| {
2304 input_handler.replace_and_mark_text_in_range(replacement_range, text, selected_range)
2305 });
2306 }
2307}
2308extern "C" fn unmark_text(this: &Object, _: Sel) {
2309 with_input_handler(this, |input_handler| input_handler.unmark_text());
2310}
2311
2312extern "C" fn attributed_substring_for_proposed_range(
2313 this: &Object,
2314 _: Sel,
2315 range: NSRange,
2316 actual_range: *mut c_void,
2317) -> id {
2318 with_input_handler(this, |input_handler| {
2319 let range = range.to_range()?;
2320 if range.is_empty() {
2321 return None;
2322 }
2323 let mut adjusted: Option<Range<usize>> = None;
2324
2325 let selected_text = input_handler.text_for_range(range.clone(), &mut adjusted)?;
2326 if let Some(adjusted) = adjusted
2327 && adjusted != range
2328 {
2329 unsafe { (actual_range as *mut NSRange).write(NSRange::from(adjusted)) };
2330 }
2331 unsafe {
2332 let string: id = msg_send![class!(NSAttributedString), alloc];
2333 let string: id = msg_send![string, initWithString: ns_string(&selected_text)];
2334 Some(string)
2335 }
2336 })
2337 .flatten()
2338 .unwrap_or(nil)
2339}
2340
2341// We ignore which selector it asks us to do because the user may have
2342// bound the shortcut to something else.
2343extern "C" fn do_command_by_selector(this: &Object, _: Sel, _: Sel) {
2344 let state = unsafe { get_window_state(this) };
2345 let mut lock = state.as_ref().lock();
2346 let keystroke = lock.keystroke_for_do_command.take();
2347 let mut event_callback = lock.event_callback.take();
2348 drop(lock);
2349
2350 if let Some((keystroke, mut callback)) = keystroke.zip(event_callback.as_mut()) {
2351 let handled = (callback)(PlatformInput::KeyDown(KeyDownEvent {
2352 keystroke,
2353 is_held: false,
2354 prefer_character_input: false,
2355 }));
2356 state.as_ref().lock().do_command_handled = Some(!handled.propagate);
2357 }
2358
2359 state.as_ref().lock().event_callback = event_callback;
2360}
2361
2362extern "C" fn view_did_change_effective_appearance(this: &Object, _: Sel) {
2363 unsafe {
2364 let state = get_window_state(this);
2365 let mut lock = state.as_ref().lock();
2366 if let Some(mut callback) = lock.appearance_changed_callback.take() {
2367 drop(lock);
2368 callback();
2369 state.lock().appearance_changed_callback = Some(callback);
2370 }
2371 }
2372}
2373
2374extern "C" fn accepts_first_mouse(this: &Object, _: Sel, _: id) -> BOOL {
2375 let window_state = unsafe { get_window_state(this) };
2376 let mut lock = window_state.as_ref().lock();
2377 lock.first_mouse = true;
2378 YES
2379}
2380
2381extern "C" fn character_index_for_point(this: &Object, _: Sel, position: NSPoint) -> u64 {
2382 let position = screen_point_to_gpui_point(this, position);
2383 with_input_handler(this, |input_handler| {
2384 input_handler.character_index_for_point(position)
2385 })
2386 .flatten()
2387 .map(|index| index as u64)
2388 .unwrap_or(NSNotFound as u64)
2389}
2390
2391fn screen_point_to_gpui_point(this: &Object, position: NSPoint) -> Point<Pixels> {
2392 let frame = get_frame(this);
2393 let window_x = position.x - frame.origin.x;
2394 let window_y = frame.size.height - (position.y - frame.origin.y);
2395
2396 point(px(window_x as f32), px(window_y as f32))
2397}
2398
2399extern "C" fn dragging_entered(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
2400 let window_state = unsafe { get_window_state(this) };
2401 let position = drag_event_position(&window_state, dragging_info);
2402 let paths = external_paths_from_event(dragging_info);
2403 if let Some(event) =
2404 paths.map(|paths| PlatformInput::FileDrop(FileDropEvent::Entered { position, paths }))
2405 && send_new_event(&window_state, event)
2406 {
2407 window_state.lock().external_files_dragged = true;
2408 return NSDragOperationCopy;
2409 }
2410 NSDragOperationNone
2411}
2412
2413extern "C" fn dragging_updated(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
2414 let window_state = unsafe { get_window_state(this) };
2415 let position = drag_event_position(&window_state, dragging_info);
2416 if send_new_event(
2417 &window_state,
2418 PlatformInput::FileDrop(FileDropEvent::Pending { position }),
2419 ) {
2420 NSDragOperationCopy
2421 } else {
2422 NSDragOperationNone
2423 }
2424}
2425
2426extern "C" fn dragging_exited(this: &Object, _: Sel, _: id) {
2427 let window_state = unsafe { get_window_state(this) };
2428 send_new_event(
2429 &window_state,
2430 PlatformInput::FileDrop(FileDropEvent::Exited),
2431 );
2432 window_state.lock().external_files_dragged = false;
2433}
2434
2435extern "C" fn perform_drag_operation(this: &Object, _: Sel, dragging_info: id) -> BOOL {
2436 let window_state = unsafe { get_window_state(this) };
2437 let position = drag_event_position(&window_state, dragging_info);
2438 send_new_event(
2439 &window_state,
2440 PlatformInput::FileDrop(FileDropEvent::Submit { position }),
2441 )
2442 .to_objc()
2443}
2444
2445fn external_paths_from_event(dragging_info: *mut Object) -> Option<ExternalPaths> {
2446 let mut paths = SmallVec::new();
2447 let pasteboard: id = unsafe { msg_send![dragging_info, draggingPasteboard] };
2448 let filenames = unsafe { NSPasteboard::propertyListForType(pasteboard, NSFilenamesPboardType) };
2449 if filenames == nil {
2450 return None;
2451 }
2452 for file in unsafe { filenames.iter() } {
2453 let path = unsafe {
2454 let f = NSString::UTF8String(file);
2455 CStr::from_ptr(f).to_string_lossy().into_owned()
2456 };
2457 paths.push(PathBuf::from(path))
2458 }
2459 Some(ExternalPaths(paths))
2460}
2461
2462extern "C" fn conclude_drag_operation(this: &Object, _: Sel, _: id) {
2463 let window_state = unsafe { get_window_state(this) };
2464 send_new_event(
2465 &window_state,
2466 PlatformInput::FileDrop(FileDropEvent::Exited),
2467 );
2468}
2469
2470async fn synthetic_drag(
2471 window_state: Weak<Mutex<MacWindowState>>,
2472 drag_id: usize,
2473 event: MouseMoveEvent,
2474) {
2475 loop {
2476 Timer::after(Duration::from_millis(16)).await;
2477 if let Some(window_state) = window_state.upgrade() {
2478 let mut lock = window_state.lock();
2479 if lock.synthetic_drag_counter == drag_id {
2480 if let Some(mut callback) = lock.event_callback.take() {
2481 drop(lock);
2482 callback(PlatformInput::MouseMove(event.clone()));
2483 window_state.lock().event_callback = Some(callback);
2484 }
2485 } else {
2486 break;
2487 }
2488 }
2489 }
2490}
2491
2492fn send_new_event(window_state_lock: &Mutex<MacWindowState>, e: PlatformInput) -> bool {
2493 let window_state = window_state_lock.lock().event_callback.take();
2494 if let Some(mut callback) = window_state {
2495 callback(e);
2496 window_state_lock.lock().event_callback = Some(callback);
2497 true
2498 } else {
2499 false
2500 }
2501}
2502
2503fn drag_event_position(window_state: &Mutex<MacWindowState>, dragging_info: id) -> Point<Pixels> {
2504 let drag_location: NSPoint = unsafe { msg_send![dragging_info, draggingLocation] };
2505 convert_mouse_position(drag_location, window_state.lock().content_size().height)
2506}
2507
2508fn with_input_handler<F, R>(window: &Object, f: F) -> Option<R>
2509where
2510 F: FnOnce(&mut PlatformInputHandler) -> R,
2511{
2512 let window_state = unsafe { get_window_state(window) };
2513 let mut lock = window_state.as_ref().lock();
2514 if let Some(mut input_handler) = lock.input_handler.take() {
2515 drop(lock);
2516 let result = f(&mut input_handler);
2517 window_state.lock().input_handler = Some(input_handler);
2518 Some(result)
2519 } else {
2520 None
2521 }
2522}
2523
2524unsafe fn display_id_for_screen(screen: id) -> CGDirectDisplayID {
2525 unsafe {
2526 let device_description = NSScreen::deviceDescription(screen);
2527 let screen_number_key: id = ns_string("NSScreenNumber");
2528 let screen_number = device_description.objectForKey_(screen_number_key);
2529 let screen_number: NSUInteger = msg_send![screen_number, unsignedIntegerValue];
2530 screen_number as CGDirectDisplayID
2531 }
2532}
2533
2534extern "C" fn blurred_view_init_with_frame(this: &Object, _: Sel, frame: NSRect) -> id {
2535 unsafe {
2536 let view = msg_send![super(this, class!(NSVisualEffectView)), initWithFrame: frame];
2537 // Use a colorless semantic material. The default value `AppearanceBased`, though not
2538 // manually set, is deprecated.
2539 NSVisualEffectView::setMaterial_(view, NSVisualEffectMaterial::Selection);
2540 NSVisualEffectView::setState_(view, NSVisualEffectState::Active);
2541 view
2542 }
2543}
2544
2545extern "C" fn blurred_view_update_layer(this: &Object, _: Sel) {
2546 unsafe {
2547 let _: () = msg_send![super(this, class!(NSVisualEffectView)), updateLayer];
2548 let layer: id = msg_send![this, layer];
2549 if !layer.is_null() {
2550 remove_layer_background(layer);
2551 }
2552 }
2553}
2554
2555unsafe fn remove_layer_background(layer: id) {
2556 unsafe {
2557 let _: () = msg_send![layer, setBackgroundColor:nil];
2558
2559 let class_name: id = msg_send![layer, className];
2560 if class_name.isEqualToString("CAChameleonLayer") {
2561 // Remove the desktop tinting effect.
2562 let _: () = msg_send![layer, setHidden: YES];
2563 return;
2564 }
2565
2566 let filters: id = msg_send![layer, filters];
2567 if !filters.is_null() {
2568 // Remove the increased saturation.
2569 // The effect of a `CAFilter` or `CIFilter` is determined by its name, and the
2570 // `description` reflects its name and some parameters. Currently `NSVisualEffectView`
2571 // uses a `CAFilter` named "colorSaturate". If one day they switch to `CIFilter`, the
2572 // `description` will still contain "Saturat" ("... inputSaturation = ...").
2573 let test_string: id = ns_string("Saturat");
2574 let count = NSArray::count(filters);
2575 for i in 0..count {
2576 let description: id = msg_send![filters.objectAtIndex(i), description];
2577 let hit: BOOL = msg_send![description, containsString: test_string];
2578 if hit == NO {
2579 continue;
2580 }
2581
2582 let all_indices = NSRange {
2583 location: 0,
2584 length: count,
2585 };
2586 let indices: id = msg_send![class!(NSMutableIndexSet), indexSet];
2587 let _: () = msg_send![indices, addIndexesInRange: all_indices];
2588 let _: () = msg_send![indices, removeIndex:i];
2589 let filtered: id = msg_send![filters, objectsAtIndexes: indices];
2590 let _: () = msg_send![layer, setFilters: filtered];
2591 break;
2592 }
2593 }
2594
2595 let sublayers: id = msg_send![layer, sublayers];
2596 if !sublayers.is_null() {
2597 let count = NSArray::count(sublayers);
2598 for i in 0..count {
2599 let sublayer = sublayers.objectAtIndex(i);
2600 remove_layer_background(sublayer);
2601 }
2602 }
2603 }
2604}
2605
2606extern "C" fn add_titlebar_accessory_view_controller(this: &Object, _: Sel, view_controller: id) {
2607 unsafe {
2608 let _: () = msg_send![super(this, class!(NSWindow)), addTitlebarAccessoryViewController: view_controller];
2609
2610 // Hide the native tab bar and set its height to 0, since we render our own.
2611 let accessory_view: id = msg_send![view_controller, view];
2612 let _: () = msg_send![accessory_view, setHidden: YES];
2613 let mut frame: NSRect = msg_send![accessory_view, frame];
2614 frame.size.height = 0.0;
2615 let _: () = msg_send![accessory_view, setFrame: frame];
2616 }
2617}
2618
2619extern "C" fn move_tab_to_new_window(this: &Object, _: Sel, _: id) {
2620 unsafe {
2621 let _: () = msg_send![super(this, class!(NSWindow)), moveTabToNewWindow:nil];
2622
2623 let window_state = get_window_state(this);
2624 let mut lock = window_state.as_ref().lock();
2625 if let Some(mut callback) = lock.move_tab_to_new_window_callback.take() {
2626 drop(lock);
2627 callback();
2628 window_state.lock().move_tab_to_new_window_callback = Some(callback);
2629 }
2630 }
2631}
2632
2633extern "C" fn merge_all_windows(this: &Object, _: Sel, _: id) {
2634 unsafe {
2635 let _: () = msg_send![super(this, class!(NSWindow)), mergeAllWindows:nil];
2636
2637 let window_state = get_window_state(this);
2638 let mut lock = window_state.as_ref().lock();
2639 if let Some(mut callback) = lock.merge_all_windows_callback.take() {
2640 drop(lock);
2641 callback();
2642 window_state.lock().merge_all_windows_callback = Some(callback);
2643 }
2644 }
2645}
2646
2647extern "C" fn select_next_tab(this: &Object, _sel: Sel, _id: id) {
2648 let window_state = unsafe { get_window_state(this) };
2649 let mut lock = window_state.as_ref().lock();
2650 if let Some(mut callback) = lock.select_next_tab_callback.take() {
2651 drop(lock);
2652 callback();
2653 window_state.lock().select_next_tab_callback = Some(callback);
2654 }
2655}
2656
2657extern "C" fn select_previous_tab(this: &Object, _sel: Sel, _id: id) {
2658 let window_state = unsafe { get_window_state(this) };
2659 let mut lock = window_state.as_ref().lock();
2660 if let Some(mut callback) = lock.select_previous_tab_callback.take() {
2661 drop(lock);
2662 callback();
2663 window_state.lock().select_previous_tab_callback = Some(callback);
2664 }
2665}
2666
2667extern "C" fn toggle_tab_bar(this: &Object, _sel: Sel, _id: id) {
2668 unsafe {
2669 let _: () = msg_send![super(this, class!(NSWindow)), toggleTabBar:nil];
2670
2671 let window_state = get_window_state(this);
2672 let mut lock = window_state.as_ref().lock();
2673 lock.move_traffic_light();
2674
2675 if let Some(mut callback) = lock.toggle_tab_bar_callback.take() {
2676 drop(lock);
2677 callback();
2678 window_state.lock().toggle_tab_bar_callback = Some(callback);
2679 }
2680 }
2681}