1use crate::{
2 BoolExt, DisplayLink, MacDisplay, NSRange, NSStringExt, TISCopyCurrentKeyboardInputSource,
3 TISGetInputSourceProperty, events::platform_input_from_native,
4 kTISPropertyInputSourceIsASCIICapable, kTISPropertyInputSourceType, kTISTypeKeyboardInputMode,
5 ns_string, renderer,
6};
7#[cfg(any(test, feature = "test-support"))]
8use anyhow::Result;
9use block::ConcreteBlock;
10use cocoa::{
11 appkit::{
12 NSAppKitVersionNumber, NSAppKitVersionNumber12_0, NSApplication, NSBackingStoreBuffered,
13 NSColor, NSEvent, NSEventModifierFlags, NSFilenamesPboardType, NSPasteboard, NSScreen,
14 NSView, NSViewHeightSizable, NSViewWidthSizable, NSVisualEffectMaterial,
15 NSVisualEffectState, NSVisualEffectView, NSWindow, NSWindowButton,
16 NSWindowCollectionBehavior, NSWindowOcclusionState, NSWindowOrderingMode,
17 NSWindowStyleMask, NSWindowTitleVisibility,
18 },
19 base::{id, nil},
20 foundation::{
21 NSArray, NSAutoreleasePool, NSDictionary, NSFastEnumeration, NSInteger, NSNotFound,
22 NSOperatingSystemVersion, NSPoint, NSProcessInfo, NSRect, NSSize, NSString, NSUInteger,
23 NSUserDefaults,
24 },
25};
26use dispatch2::DispatchQueue;
27use gpui::{
28 AnyWindowHandle, BackgroundExecutor, Bounds, Capslock, ExternalPaths, FileDropEvent,
29 ForegroundExecutor, KeyDownEvent, Keystroke, Modifiers, ModifiersChangedEvent, MouseButton,
30 MouseDownEvent, MouseMoveEvent, MouseUpEvent, Pixels, PlatformAtlas, PlatformDisplay,
31 PlatformInput, PlatformInputHandler, PlatformWindow, Point, PromptButton, PromptLevel,
32 RequestFrameOptions, SharedString, Size, SystemWindowTab, WindowAppearance,
33 WindowBackgroundAppearance, WindowBounds, WindowControlArea, WindowKind, WindowParams, point,
34 px, size,
35};
36#[cfg(any(test, feature = "test-support"))]
37use image::RgbaImage;
38
39use core_foundation::base::{CFRelease, CFTypeRef};
40use core_foundation_sys::base::CFEqual;
41use core_foundation_sys::number::{CFBooleanGetValue, CFBooleanRef};
42use core_graphics::display::{CGDirectDisplayID, CGPoint, CGRect};
43use ctor::ctor;
44use futures::channel::oneshot;
45use objc::{
46 class,
47 declare::ClassDecl,
48 msg_send,
49 runtime::{BOOL, Class, NO, Object, Protocol, Sel, YES},
50 sel, sel_impl,
51};
52use objc2_app_kit::NSBeep;
53use parking_lot::Mutex;
54use raw_window_handle as rwh;
55use smallvec::SmallVec;
56use std::{
57 cell::Cell,
58 ffi::{CStr, c_void},
59 mem,
60 ops::Range,
61 path::PathBuf,
62 ptr::{self, NonNull},
63 rc::Rc,
64 sync::{
65 Arc, Weak,
66 atomic::{AtomicBool, Ordering},
67 },
68 time::Duration,
69};
70use util::ResultExt;
71
72const WINDOW_STATE_IVAR: &str = "windowState";
73
74static mut WINDOW_CLASS: *const Class = ptr::null();
75static mut PANEL_CLASS: *const Class = ptr::null();
76static mut VIEW_CLASS: *const Class = ptr::null();
77static mut BLURRED_VIEW_CLASS: *const Class = ptr::null();
78
79#[allow(non_upper_case_globals)]
80const NSWindowStyleMaskNonactivatingPanel: NSWindowStyleMask =
81 NSWindowStyleMask::from_bits_retain(1 << 7);
82// WindowLevel const value ref: https://docs.rs/core-graphics2/0.4.1/src/core_graphics2/window_level.rs.html
83#[allow(non_upper_case_globals)]
84const NSNormalWindowLevel: NSInteger = 0;
85#[allow(non_upper_case_globals)]
86const NSFloatingWindowLevel: NSInteger = 3;
87#[allow(non_upper_case_globals)]
88const NSPopUpWindowLevel: NSInteger = 101;
89#[allow(non_upper_case_globals)]
90const NSTrackingMouseEnteredAndExited: NSUInteger = 0x01;
91#[allow(non_upper_case_globals)]
92const NSTrackingMouseMoved: NSUInteger = 0x02;
93#[allow(non_upper_case_globals)]
94const NSTrackingActiveAlways: NSUInteger = 0x80;
95#[allow(non_upper_case_globals)]
96const NSTrackingInVisibleRect: NSUInteger = 0x200;
97#[allow(non_upper_case_globals)]
98const NSWindowAnimationBehaviorUtilityWindow: NSInteger = 4;
99#[allow(non_upper_case_globals)]
100const NSViewLayerContentsRedrawDuringViewResize: NSInteger = 2;
101// https://developer.apple.com/documentation/appkit/nsdragoperation
102type NSDragOperation = NSUInteger;
103#[allow(non_upper_case_globals)]
104const NSDragOperationNone: NSDragOperation = 0;
105#[allow(non_upper_case_globals)]
106const NSDragOperationCopy: NSDragOperation = 1;
107#[derive(PartialEq)]
108pub enum UserTabbingPreference {
109 Never,
110 Always,
111 InFullScreen,
112}
113
114#[link(name = "CoreGraphics", kind = "framework")]
115unsafe extern "C" {
116 // Widely used private APIs; Apple uses them for their Terminal.app.
117 fn CGSMainConnectionID() -> id;
118 fn CGSSetWindowBackgroundBlurRadius(
119 connection_id: id,
120 window_id: NSInteger,
121 radius: i64,
122 ) -> i32;
123}
124
125#[ctor]
126unsafe fn build_classes() {
127 unsafe {
128 WINDOW_CLASS = build_window_class("GPUIWindow", class!(NSWindow));
129 PANEL_CLASS = build_window_class("GPUIPanel", class!(NSPanel));
130 VIEW_CLASS = {
131 let mut decl = ClassDecl::new("GPUIView", class!(NSView)).unwrap();
132 decl.add_ivar::<*mut c_void>(WINDOW_STATE_IVAR);
133 unsafe {
134 decl.add_method(sel!(dealloc), dealloc_view as extern "C" fn(&Object, Sel));
135
136 decl.add_method(
137 sel!(performKeyEquivalent:),
138 handle_key_equivalent as extern "C" fn(&Object, Sel, id) -> BOOL,
139 );
140 decl.add_method(
141 sel!(keyDown:),
142 handle_key_down as extern "C" fn(&Object, Sel, id),
143 );
144 decl.add_method(
145 sel!(keyUp:),
146 handle_key_up as extern "C" fn(&Object, Sel, id),
147 );
148 decl.add_method(
149 sel!(mouseDown:),
150 handle_view_event as extern "C" fn(&Object, Sel, id),
151 );
152 decl.add_method(
153 sel!(mouseUp:),
154 handle_view_event as extern "C" fn(&Object, Sel, id),
155 );
156 decl.add_method(
157 sel!(rightMouseDown:),
158 handle_view_event as extern "C" fn(&Object, Sel, id),
159 );
160 decl.add_method(
161 sel!(rightMouseUp:),
162 handle_view_event as extern "C" fn(&Object, Sel, id),
163 );
164 decl.add_method(
165 sel!(otherMouseDown:),
166 handle_view_event as extern "C" fn(&Object, Sel, id),
167 );
168 decl.add_method(
169 sel!(otherMouseUp:),
170 handle_view_event as extern "C" fn(&Object, Sel, id),
171 );
172 decl.add_method(
173 sel!(mouseMoved:),
174 handle_view_event as extern "C" fn(&Object, Sel, id),
175 );
176 decl.add_method(
177 sel!(pressureChangeWithEvent:),
178 handle_view_event as extern "C" fn(&Object, Sel, id),
179 );
180 decl.add_method(
181 sel!(mouseExited:),
182 handle_view_event as extern "C" fn(&Object, Sel, id),
183 );
184 decl.add_method(
185 sel!(magnifyWithEvent:),
186 handle_view_event as extern "C" fn(&Object, Sel, id),
187 );
188 decl.add_method(
189 sel!(mouseDragged:),
190 handle_view_event as extern "C" fn(&Object, Sel, id),
191 );
192 decl.add_method(
193 sel!(rightMouseDragged:),
194 handle_view_event as extern "C" fn(&Object, Sel, id),
195 );
196 decl.add_method(
197 sel!(otherMouseDragged:),
198 handle_view_event as extern "C" fn(&Object, Sel, id),
199 );
200 decl.add_method(
201 sel!(scrollWheel:),
202 handle_view_event as extern "C" fn(&Object, Sel, id),
203 );
204 decl.add_method(
205 sel!(swipeWithEvent:),
206 handle_view_event as extern "C" fn(&Object, Sel, id),
207 );
208 decl.add_method(
209 sel!(flagsChanged:),
210 handle_view_event as extern "C" fn(&Object, Sel, id),
211 );
212
213 decl.add_method(
214 sel!(makeBackingLayer),
215 make_backing_layer as extern "C" fn(&Object, Sel) -> id,
216 );
217
218 decl.add_protocol(Protocol::get("CALayerDelegate").unwrap());
219 decl.add_method(
220 sel!(viewDidChangeBackingProperties),
221 view_did_change_backing_properties as extern "C" fn(&Object, Sel),
222 );
223 decl.add_method(
224 sel!(setFrameSize:),
225 set_frame_size as extern "C" fn(&Object, Sel, NSSize),
226 );
227 decl.add_method(
228 sel!(displayLayer:),
229 display_layer as extern "C" fn(&Object, Sel, id),
230 );
231
232 decl.add_protocol(Protocol::get("NSTextInputClient").unwrap());
233 decl.add_method(
234 sel!(validAttributesForMarkedText),
235 valid_attributes_for_marked_text as extern "C" fn(&Object, Sel) -> id,
236 );
237 decl.add_method(
238 sel!(hasMarkedText),
239 has_marked_text as extern "C" fn(&Object, Sel) -> BOOL,
240 );
241 decl.add_method(
242 sel!(markedRange),
243 marked_range as extern "C" fn(&Object, Sel) -> NSRange,
244 );
245 decl.add_method(
246 sel!(selectedRange),
247 selected_range as extern "C" fn(&Object, Sel) -> NSRange,
248 );
249 decl.add_method(
250 sel!(firstRectForCharacterRange:actualRange:),
251 first_rect_for_character_range
252 as extern "C" fn(&Object, Sel, NSRange, id) -> NSRect,
253 );
254 decl.add_method(
255 sel!(insertText:replacementRange:),
256 insert_text as extern "C" fn(&Object, Sel, id, NSRange),
257 );
258 decl.add_method(
259 sel!(setMarkedText:selectedRange:replacementRange:),
260 set_marked_text as extern "C" fn(&Object, Sel, id, NSRange, NSRange),
261 );
262 decl.add_method(sel!(unmarkText), unmark_text as extern "C" fn(&Object, Sel));
263 decl.add_method(
264 sel!(attributedSubstringForProposedRange:actualRange:),
265 attributed_substring_for_proposed_range
266 as extern "C" fn(&Object, Sel, NSRange, *mut c_void) -> id,
267 );
268 decl.add_method(
269 sel!(viewDidChangeEffectiveAppearance),
270 view_did_change_effective_appearance as extern "C" fn(&Object, Sel),
271 );
272
273 // Suppress beep on keystrokes with modifier keys.
274 decl.add_method(
275 sel!(doCommandBySelector:),
276 do_command_by_selector as extern "C" fn(&Object, Sel, Sel),
277 );
278
279 decl.add_method(
280 sel!(acceptsFirstMouse:),
281 accepts_first_mouse as extern "C" fn(&Object, Sel, id) -> BOOL,
282 );
283
284 decl.add_method(
285 sel!(characterIndexForPoint:),
286 character_index_for_point as extern "C" fn(&Object, Sel, NSPoint) -> u64,
287 );
288 }
289 decl.register()
290 };
291 BLURRED_VIEW_CLASS = {
292 let mut decl = ClassDecl::new("BlurredView", class!(NSVisualEffectView)).unwrap();
293 unsafe {
294 decl.add_method(
295 sel!(initWithFrame:),
296 blurred_view_init_with_frame as extern "C" fn(&Object, Sel, NSRect) -> id,
297 );
298 decl.add_method(
299 sel!(updateLayer),
300 blurred_view_update_layer as extern "C" fn(&Object, Sel),
301 );
302 decl.register()
303 }
304 };
305 }
306}
307
308pub(crate) fn convert_mouse_position(position: NSPoint, window_height: Pixels) -> Point<Pixels> {
309 point(
310 px(position.x as f32),
311 // macOS screen coordinates are relative to bottom left
312 window_height - px(position.y as f32),
313 )
314}
315
316unsafe fn build_window_class(name: &'static str, superclass: &Class) -> *const Class {
317 unsafe {
318 let mut decl = ClassDecl::new(name, superclass).unwrap();
319 decl.add_ivar::<*mut c_void>(WINDOW_STATE_IVAR);
320 decl.add_method(sel!(dealloc), dealloc_window as extern "C" fn(&Object, Sel));
321
322 decl.add_method(
323 sel!(canBecomeMainWindow),
324 yes as extern "C" fn(&Object, Sel) -> BOOL,
325 );
326 decl.add_method(
327 sel!(canBecomeKeyWindow),
328 yes as extern "C" fn(&Object, Sel) -> BOOL,
329 );
330 decl.add_method(
331 sel!(windowDidResize:),
332 window_did_resize as extern "C" fn(&Object, Sel, id),
333 );
334 decl.add_method(
335 sel!(windowDidChangeOcclusionState:),
336 window_did_change_occlusion_state as extern "C" fn(&Object, Sel, id),
337 );
338 decl.add_method(
339 sel!(windowWillEnterFullScreen:),
340 window_will_enter_fullscreen as extern "C" fn(&Object, Sel, id),
341 );
342 decl.add_method(
343 sel!(windowWillExitFullScreen:),
344 window_will_exit_fullscreen as extern "C" fn(&Object, Sel, id),
345 );
346 decl.add_method(
347 sel!(windowDidMove:),
348 window_did_move as extern "C" fn(&Object, Sel, id),
349 );
350 decl.add_method(
351 sel!(windowDidChangeScreen:),
352 window_did_change_screen as extern "C" fn(&Object, Sel, id),
353 );
354 decl.add_method(
355 sel!(windowDidBecomeKey:),
356 window_did_change_key_status as extern "C" fn(&Object, Sel, id),
357 );
358 decl.add_method(
359 sel!(windowDidResignKey:),
360 window_did_change_key_status as extern "C" fn(&Object, Sel, id),
361 );
362 decl.add_method(
363 sel!(windowShouldClose:),
364 window_should_close as extern "C" fn(&Object, Sel, id) -> BOOL,
365 );
366
367 decl.add_method(sel!(close), close_window as extern "C" fn(&Object, Sel));
368
369 decl.add_method(
370 sel!(draggingEntered:),
371 dragging_entered as extern "C" fn(&Object, Sel, id) -> NSDragOperation,
372 );
373 decl.add_method(
374 sel!(draggingUpdated:),
375 dragging_updated as extern "C" fn(&Object, Sel, id) -> NSDragOperation,
376 );
377 decl.add_method(
378 sel!(draggingExited:),
379 dragging_exited as extern "C" fn(&Object, Sel, id),
380 );
381 decl.add_method(
382 sel!(performDragOperation:),
383 perform_drag_operation as extern "C" fn(&Object, Sel, id) -> BOOL,
384 );
385 decl.add_method(
386 sel!(concludeDragOperation:),
387 conclude_drag_operation as extern "C" fn(&Object, Sel, id),
388 );
389
390 decl.add_method(
391 sel!(addTitlebarAccessoryViewController:),
392 add_titlebar_accessory_view_controller as extern "C" fn(&Object, Sel, id),
393 );
394
395 decl.add_method(
396 sel!(moveTabToNewWindow:),
397 move_tab_to_new_window as extern "C" fn(&Object, Sel, id),
398 );
399
400 decl.add_method(
401 sel!(mergeAllWindows:),
402 merge_all_windows as extern "C" fn(&Object, Sel, id),
403 );
404
405 decl.add_method(
406 sel!(selectNextTab:),
407 select_next_tab as extern "C" fn(&Object, Sel, id),
408 );
409
410 decl.add_method(
411 sel!(selectPreviousTab:),
412 select_previous_tab as extern "C" fn(&Object, Sel, id),
413 );
414
415 decl.add_method(
416 sel!(toggleTabBar:),
417 toggle_tab_bar as extern "C" fn(&Object, Sel, id),
418 );
419
420 decl.register()
421 }
422}
423
424struct MacWindowState {
425 handle: AnyWindowHandle,
426 foreground_executor: ForegroundExecutor,
427 background_executor: BackgroundExecutor,
428 native_window: id,
429 native_view: NonNull<Object>,
430 blurred_view: Option<id>,
431 background_appearance: WindowBackgroundAppearance,
432 display_link: Option<DisplayLink>,
433 renderer: renderer::Renderer,
434 request_frame_callback: Option<Box<dyn FnMut(RequestFrameOptions)>>,
435 event_callback: Option<Box<dyn FnMut(PlatformInput) -> gpui::DispatchEventResult>>,
436 activate_callback: Option<Box<dyn FnMut(bool)>>,
437 resize_callback: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
438 moved_callback: Option<Box<dyn FnMut()>>,
439 should_close_callback: Option<Box<dyn FnMut() -> bool>>,
440 close_callback: Option<Box<dyn FnOnce()>>,
441 appearance_changed_callback: Option<Box<dyn FnMut()>>,
442 input_handler: Option<PlatformInputHandler>,
443 last_key_equivalent: Option<KeyDownEvent>,
444 synthetic_drag_counter: usize,
445 traffic_light_position: Option<Point<Pixels>>,
446 transparent_titlebar: bool,
447 previous_modifiers_changed_event: Option<PlatformInput>,
448 keystroke_for_do_command: Option<Keystroke>,
449 do_command_handled: Option<bool>,
450 external_files_dragged: bool,
451 // Whether the next left-mouse click is also the focusing click.
452 first_mouse: bool,
453 fullscreen_restore_bounds: Bounds<Pixels>,
454 move_tab_to_new_window_callback: Option<Box<dyn FnMut()>>,
455 merge_all_windows_callback: Option<Box<dyn FnMut()>>,
456 select_next_tab_callback: Option<Box<dyn FnMut()>>,
457 select_previous_tab_callback: Option<Box<dyn FnMut()>>,
458 toggle_tab_bar_callback: Option<Box<dyn FnMut()>>,
459 activated_least_once: bool,
460 closed: Arc<AtomicBool>,
461 // The parent window if this window is a sheet (Dialog kind)
462 sheet_parent: Option<id>,
463}
464
465impl MacWindowState {
466 fn move_traffic_light(&self) {
467 if let Some(traffic_light_position) = self.traffic_light_position {
468 if self.is_fullscreen() {
469 // Moving traffic lights while fullscreen doesn't work,
470 // see https://github.com/zed-industries/zed/issues/4712
471 return;
472 }
473
474 let titlebar_height = self.titlebar_height();
475
476 unsafe {
477 let close_button: id = msg_send![
478 self.native_window,
479 standardWindowButton: NSWindowButton::NSWindowCloseButton
480 ];
481 let min_button: id = msg_send![
482 self.native_window,
483 standardWindowButton: NSWindowButton::NSWindowMiniaturizeButton
484 ];
485 let zoom_button: id = msg_send![
486 self.native_window,
487 standardWindowButton: NSWindowButton::NSWindowZoomButton
488 ];
489
490 let mut close_button_frame: CGRect = msg_send![close_button, frame];
491 let mut min_button_frame: CGRect = msg_send![min_button, frame];
492 let mut zoom_button_frame: CGRect = msg_send![zoom_button, frame];
493 let mut origin = point(
494 traffic_light_position.x,
495 titlebar_height
496 - traffic_light_position.y
497 - px(close_button_frame.size.height as f32),
498 );
499 let button_spacing =
500 px((min_button_frame.origin.x - close_button_frame.origin.x) as f32);
501
502 close_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into());
503 let _: () = msg_send![close_button, setFrame: close_button_frame];
504 origin.x += button_spacing;
505
506 min_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into());
507 let _: () = msg_send![min_button, setFrame: min_button_frame];
508 origin.x += button_spacing;
509
510 zoom_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into());
511 let _: () = msg_send![zoom_button, setFrame: zoom_button_frame];
512 origin.x += button_spacing;
513 }
514 }
515 }
516
517 fn start_display_link(&mut self) {
518 self.stop_display_link();
519 unsafe {
520 if !self
521 .native_window
522 .occlusionState()
523 .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible)
524 {
525 return;
526 }
527 }
528 let display_id = unsafe { display_id_for_screen(self.native_window.screen()) };
529 if let Some(mut display_link) =
530 DisplayLink::new(display_id, self.native_view.as_ptr() as *mut c_void, step).log_err()
531 {
532 display_link.start().log_err();
533 self.display_link = Some(display_link);
534 }
535 }
536
537 fn stop_display_link(&mut self) {
538 self.display_link = None;
539 }
540
541 fn is_maximized(&self) -> bool {
542 fn rect_to_size(rect: NSRect) -> Size<Pixels> {
543 let NSSize { width, height } = rect.size;
544 size(width.into(), height.into())
545 }
546
547 unsafe {
548 let bounds = self.bounds();
549 let screen_size = rect_to_size(self.native_window.screen().visibleFrame());
550 bounds.size == screen_size
551 }
552 }
553
554 fn is_fullscreen(&self) -> bool {
555 unsafe {
556 let style_mask = self.native_window.styleMask();
557 style_mask.contains(NSWindowStyleMask::NSFullScreenWindowMask)
558 }
559 }
560
561 fn bounds(&self) -> Bounds<Pixels> {
562 let mut window_frame = unsafe { NSWindow::frame(self.native_window) };
563 let screen = unsafe { NSWindow::screen(self.native_window) };
564 if screen == nil {
565 return Bounds::new(point(px(0.), px(0.)), gpui::DEFAULT_WINDOW_SIZE);
566 }
567 let screen_frame = unsafe { NSScreen::frame(screen) };
568
569 // Flip the y coordinate to be top-left origin
570 window_frame.origin.y =
571 screen_frame.size.height - window_frame.origin.y - window_frame.size.height;
572
573 Bounds::new(
574 point(
575 px((window_frame.origin.x - screen_frame.origin.x) as f32),
576 px((window_frame.origin.y + screen_frame.origin.y) as f32),
577 ),
578 size(
579 px(window_frame.size.width as f32),
580 px(window_frame.size.height as f32),
581 ),
582 )
583 }
584
585 fn content_size(&self) -> Size<Pixels> {
586 let NSSize { width, height, .. } =
587 unsafe { NSView::frame(self.native_window.contentView()) }.size;
588 size(px(width as f32), px(height as f32))
589 }
590
591 fn scale_factor(&self) -> f32 {
592 get_scale_factor(self.native_window)
593 }
594
595 fn titlebar_height(&self) -> Pixels {
596 unsafe {
597 let frame = NSWindow::frame(self.native_window);
598 let content_layout_rect: CGRect = msg_send![self.native_window, contentLayoutRect];
599 px((frame.size.height - content_layout_rect.size.height) as f32)
600 }
601 }
602
603 fn window_bounds(&self) -> WindowBounds {
604 if self.is_fullscreen() {
605 WindowBounds::Fullscreen(self.fullscreen_restore_bounds)
606 } else {
607 WindowBounds::Windowed(self.bounds())
608 }
609 }
610}
611
612unsafe impl Send for MacWindowState {}
613
614pub(crate) struct MacWindow(Arc<Mutex<MacWindowState>>);
615
616impl MacWindow {
617 pub fn open(
618 handle: AnyWindowHandle,
619 WindowParams {
620 bounds,
621 titlebar,
622 kind,
623 is_movable,
624 is_resizable,
625 is_minimizable,
626 focus,
627 show,
628 display_id,
629 window_min_size,
630 tabbing_identifier,
631 }: WindowParams,
632 foreground_executor: ForegroundExecutor,
633 background_executor: BackgroundExecutor,
634 renderer_context: renderer::Context,
635 ) -> Self {
636 unsafe {
637 let pool = NSAutoreleasePool::new(nil);
638
639 let allows_automatic_window_tabbing = tabbing_identifier.is_some();
640 if allows_automatic_window_tabbing {
641 let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: YES];
642 } else {
643 let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: NO];
644 }
645
646 let mut style_mask;
647 if let Some(titlebar) = titlebar.as_ref() {
648 style_mask =
649 NSWindowStyleMask::NSClosableWindowMask | NSWindowStyleMask::NSTitledWindowMask;
650
651 if is_resizable {
652 style_mask |= NSWindowStyleMask::NSResizableWindowMask;
653 }
654
655 if is_minimizable {
656 style_mask |= NSWindowStyleMask::NSMiniaturizableWindowMask;
657 }
658
659 if titlebar.appears_transparent {
660 style_mask |= NSWindowStyleMask::NSFullSizeContentViewWindowMask;
661 }
662 } else {
663 style_mask = NSWindowStyleMask::NSTitledWindowMask
664 | NSWindowStyleMask::NSFullSizeContentViewWindowMask;
665 }
666
667 let native_window: id = match kind {
668 WindowKind::Normal => {
669 msg_send![WINDOW_CLASS, alloc]
670 }
671 WindowKind::PopUp => {
672 style_mask |= NSWindowStyleMaskNonactivatingPanel;
673 msg_send![PANEL_CLASS, alloc]
674 }
675 WindowKind::Floating | WindowKind::Dialog => {
676 msg_send![PANEL_CLASS, alloc]
677 }
678 };
679
680 let display = display_id
681 .and_then(MacDisplay::find_by_id)
682 .unwrap_or_else(MacDisplay::primary);
683
684 let mut target_screen = nil;
685 let mut screen_frame = None;
686
687 let screens = NSScreen::screens(nil);
688 let count: u64 = cocoa::foundation::NSArray::count(screens);
689 for i in 0..count {
690 let screen = cocoa::foundation::NSArray::objectAtIndex(screens, i);
691 let frame = NSScreen::frame(screen);
692 let display_id = display_id_for_screen(screen);
693 if display_id == display.0 {
694 screen_frame = Some(frame);
695 target_screen = screen;
696 }
697 }
698
699 let screen_frame = screen_frame.unwrap_or_else(|| {
700 let screen = NSScreen::mainScreen(nil);
701 target_screen = screen;
702 NSScreen::frame(screen)
703 });
704
705 let window_rect = NSRect::new(
706 NSPoint::new(
707 screen_frame.origin.x + bounds.origin.x.as_f32() as f64,
708 screen_frame.origin.y
709 + (display.bounds().size.height - bounds.origin.y).as_f32() as f64,
710 ),
711 NSSize::new(
712 bounds.size.width.as_f32() as f64,
713 bounds.size.height.as_f32() as f64,
714 ),
715 );
716
717 let native_window = native_window.initWithContentRect_styleMask_backing_defer_screen_(
718 window_rect,
719 style_mask,
720 NSBackingStoreBuffered,
721 NO,
722 target_screen,
723 );
724 assert!(!native_window.is_null());
725 let () = msg_send![
726 native_window,
727 registerForDraggedTypes:
728 NSArray::arrayWithObject(nil, NSFilenamesPboardType)
729 ];
730 let () = msg_send![
731 native_window,
732 setReleasedWhenClosed: NO
733 ];
734
735 let content_view = native_window.contentView();
736 let native_view: id = msg_send![VIEW_CLASS, alloc];
737 let native_view = NSView::initWithFrame_(native_view, NSView::bounds(content_view));
738 assert!(!native_view.is_null());
739
740 let mut window = Self(Arc::new(Mutex::new(MacWindowState {
741 handle,
742 foreground_executor,
743 background_executor,
744 native_window,
745 native_view: NonNull::new_unchecked(native_view),
746 blurred_view: None,
747 background_appearance: WindowBackgroundAppearance::Opaque,
748 display_link: None,
749 renderer: renderer::new_renderer(
750 renderer_context,
751 native_window as *mut _,
752 native_view as *mut _,
753 bounds.size.map(|pixels| pixels.as_f32()),
754 false,
755 ),
756 request_frame_callback: None,
757 event_callback: None,
758 activate_callback: None,
759 resize_callback: None,
760 moved_callback: None,
761 should_close_callback: None,
762 close_callback: None,
763 appearance_changed_callback: None,
764 input_handler: None,
765 last_key_equivalent: None,
766 synthetic_drag_counter: 0,
767 traffic_light_position: titlebar
768 .as_ref()
769 .and_then(|titlebar| titlebar.traffic_light_position),
770 transparent_titlebar: titlebar
771 .as_ref()
772 .is_none_or(|titlebar| titlebar.appears_transparent),
773 previous_modifiers_changed_event: None,
774 keystroke_for_do_command: None,
775 do_command_handled: None,
776 external_files_dragged: false,
777 first_mouse: false,
778 fullscreen_restore_bounds: Bounds::default(),
779 move_tab_to_new_window_callback: None,
780 merge_all_windows_callback: None,
781 select_next_tab_callback: None,
782 select_previous_tab_callback: None,
783 toggle_tab_bar_callback: None,
784 activated_least_once: false,
785 closed: Arc::new(AtomicBool::new(false)),
786 sheet_parent: None,
787 })));
788
789 (*native_window).set_ivar(
790 WINDOW_STATE_IVAR,
791 Arc::into_raw(window.0.clone()) as *const c_void,
792 );
793 native_window.setDelegate_(native_window);
794 (*native_view).set_ivar(
795 WINDOW_STATE_IVAR,
796 Arc::into_raw(window.0.clone()) as *const c_void,
797 );
798
799 if let Some(title) = titlebar
800 .as_ref()
801 .and_then(|t| t.title.as_ref().map(AsRef::as_ref))
802 {
803 window.set_title(title);
804 }
805
806 native_window.setMovable_(is_movable as BOOL);
807
808 if let Some(window_min_size) = window_min_size {
809 native_window.setContentMinSize_(NSSize {
810 width: window_min_size.width.to_f64(),
811 height: window_min_size.height.to_f64(),
812 });
813 }
814
815 if titlebar.is_none_or(|titlebar| titlebar.appears_transparent) {
816 native_window.setTitlebarAppearsTransparent_(YES);
817 native_window.setTitleVisibility_(NSWindowTitleVisibility::NSWindowTitleHidden);
818 }
819
820 native_view.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable);
821 native_view.setWantsBestResolutionOpenGLSurface_(YES);
822
823 // From winit crate: On Mojave, views automatically become layer-backed shortly after
824 // being added to a native_window. Changing the layer-backedness of a view breaks the
825 // association between the view and its associated OpenGL context. To work around this,
826 // on we explicitly make the view layer-backed up front so that AppKit doesn't do it
827 // itself and break the association with its context.
828 native_view.setWantsLayer(YES);
829 let _: () = msg_send![
830 native_view,
831 setLayerContentsRedrawPolicy: NSViewLayerContentsRedrawDuringViewResize
832 ];
833
834 content_view.addSubview_(native_view.autorelease());
835 native_window.makeFirstResponder_(native_view);
836
837 let app: id = NSApplication::sharedApplication(nil);
838 let main_window: id = msg_send![app, mainWindow];
839 let mut sheet_parent = None;
840
841 match kind {
842 WindowKind::Normal | WindowKind::Floating => {
843 if kind == WindowKind::Floating {
844 // Let the window float keep above normal windows.
845 native_window.setLevel_(NSFloatingWindowLevel);
846 } else {
847 native_window.setLevel_(NSNormalWindowLevel);
848 }
849 native_window.setAcceptsMouseMovedEvents_(YES);
850
851 if let Some(tabbing_identifier) = tabbing_identifier {
852 let tabbing_id = ns_string(tabbing_identifier.as_str());
853 let _: () = msg_send![native_window, setTabbingIdentifier: tabbing_id];
854 } else {
855 let _: () = msg_send![native_window, setTabbingIdentifier:nil];
856 }
857 }
858 WindowKind::PopUp => {
859 // Use a tracking area to allow receiving MouseMoved events even when
860 // the window or application aren't active, which is often the case
861 // e.g. for notification windows.
862 let tracking_area: id = msg_send![class!(NSTrackingArea), alloc];
863 let _: () = msg_send![
864 tracking_area,
865 initWithRect: NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.))
866 options: NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved | NSTrackingActiveAlways | NSTrackingInVisibleRect
867 owner: native_view
868 userInfo: nil
869 ];
870 let _: () =
871 msg_send![native_view, addTrackingArea: tracking_area.autorelease()];
872
873 native_window.setLevel_(NSPopUpWindowLevel);
874 let _: () = msg_send![
875 native_window,
876 setAnimationBehavior: NSWindowAnimationBehaviorUtilityWindow
877 ];
878 native_window.setCollectionBehavior_(
879 NSWindowCollectionBehavior::NSWindowCollectionBehaviorCanJoinAllSpaces |
880 NSWindowCollectionBehavior::NSWindowCollectionBehaviorFullScreenAuxiliary
881 );
882 }
883 WindowKind::Dialog => {
884 if !main_window.is_null() {
885 let parent = {
886 let active_sheet: id = msg_send![main_window, attachedSheet];
887 if active_sheet.is_null() {
888 main_window
889 } else {
890 active_sheet
891 }
892 };
893 let _: () =
894 msg_send![parent, beginSheet: native_window completionHandler: nil];
895 sheet_parent = Some(parent);
896 }
897 }
898 }
899
900 if allows_automatic_window_tabbing
901 && !main_window.is_null()
902 && main_window != native_window
903 {
904 let main_window_is_fullscreen = main_window
905 .styleMask()
906 .contains(NSWindowStyleMask::NSFullScreenWindowMask);
907 let user_tabbing_preference = Self::get_user_tabbing_preference()
908 .unwrap_or(UserTabbingPreference::InFullScreen);
909 let should_add_as_tab = user_tabbing_preference == UserTabbingPreference::Always
910 || user_tabbing_preference == UserTabbingPreference::InFullScreen
911 && main_window_is_fullscreen;
912
913 if should_add_as_tab {
914 let main_window_can_tab: BOOL =
915 msg_send![main_window, respondsToSelector: sel!(addTabbedWindow:ordered:)];
916 let main_window_visible: BOOL = msg_send![main_window, isVisible];
917
918 if main_window_can_tab == YES && main_window_visible == YES {
919 let _: () = msg_send![main_window, addTabbedWindow: native_window ordered: NSWindowOrderingMode::NSWindowAbove];
920
921 // Ensure the window is visible immediately after adding the tab, since the tab bar is updated with a new entry at this point.
922 // Note: Calling orderFront here can break fullscreen mode (makes fullscreen windows exit fullscreen), so only do this if the main window is not fullscreen.
923 if !main_window_is_fullscreen {
924 let _: () = msg_send![native_window, orderFront: nil];
925 }
926 }
927 }
928 }
929
930 if focus && show {
931 native_window.makeKeyAndOrderFront_(nil);
932 } else if show {
933 native_window.orderFront_(nil);
934 }
935
936 // Set the initial position of the window to the specified origin.
937 // Although we already specified the position using `initWithContentRect_styleMask_backing_defer_screen_`,
938 // the window position might be incorrect if the main screen (the screen that contains the window that has focus)
939 // is different from the primary screen.
940 NSWindow::setFrameTopLeftPoint_(native_window, window_rect.origin);
941 {
942 let mut window_state = window.0.lock();
943 window_state.move_traffic_light();
944 window_state.sheet_parent = sheet_parent;
945 }
946
947 pool.drain();
948
949 window
950 }
951 }
952
953 pub fn active_window() -> Option<AnyWindowHandle> {
954 unsafe {
955 let app = NSApplication::sharedApplication(nil);
956 let main_window: id = msg_send![app, mainWindow];
957 if main_window.is_null() {
958 return None;
959 }
960
961 if msg_send![main_window, isKindOfClass: WINDOW_CLASS] {
962 let handle = get_window_state(&*main_window).lock().handle;
963 Some(handle)
964 } else {
965 None
966 }
967 }
968 }
969
970 pub fn ordered_windows() -> Vec<AnyWindowHandle> {
971 unsafe {
972 let app = NSApplication::sharedApplication(nil);
973 let windows: id = msg_send![app, orderedWindows];
974 let count: NSUInteger = msg_send![windows, count];
975
976 let mut window_handles = Vec::new();
977 for i in 0..count {
978 let window: id = msg_send![windows, objectAtIndex:i];
979 if msg_send![window, isKindOfClass: WINDOW_CLASS] {
980 let handle = get_window_state(&*window).lock().handle;
981 window_handles.push(handle);
982 }
983 }
984
985 window_handles
986 }
987 }
988
989 pub fn get_user_tabbing_preference() -> Option<UserTabbingPreference> {
990 unsafe {
991 let defaults: id = NSUserDefaults::standardUserDefaults();
992 let domain = ns_string("NSGlobalDomain");
993 let key = ns_string("AppleWindowTabbingMode");
994
995 let dict: id = msg_send![defaults, persistentDomainForName: domain];
996 let value: id = if !dict.is_null() {
997 msg_send![dict, objectForKey: key]
998 } else {
999 nil
1000 };
1001
1002 let value_str = if !value.is_null() {
1003 CStr::from_ptr(NSString::UTF8String(value)).to_string_lossy()
1004 } else {
1005 "".into()
1006 };
1007
1008 match value_str.as_ref() {
1009 "manual" => Some(UserTabbingPreference::Never),
1010 "always" => Some(UserTabbingPreference::Always),
1011 _ => Some(UserTabbingPreference::InFullScreen),
1012 }
1013 }
1014 }
1015}
1016
1017impl Drop for MacWindow {
1018 fn drop(&mut self) {
1019 let mut this = self.0.lock();
1020 this.renderer.destroy();
1021 let window = this.native_window;
1022 let sheet_parent = this.sheet_parent.take();
1023 this.display_link.take();
1024 unsafe {
1025 this.native_window.setDelegate_(nil);
1026 }
1027 this.input_handler.take();
1028 this.foreground_executor
1029 .spawn(async move {
1030 unsafe {
1031 if let Some(parent) = sheet_parent {
1032 let _: () = msg_send![parent, endSheet: window];
1033 }
1034 window.close();
1035 window.autorelease();
1036 }
1037 })
1038 .detach();
1039 }
1040}
1041
1042/// Calls `f` if the window is not closed.
1043///
1044/// This should be used when spawning foreground tasks interacting with the
1045/// window, as some messages will end hard faulting if dispatched to no longer
1046/// valid window handles.
1047fn if_window_not_closed(closed: Arc<AtomicBool>, f: impl FnOnce()) {
1048 if !closed.load(Ordering::Acquire) {
1049 f();
1050 }
1051}
1052
1053impl PlatformWindow for MacWindow {
1054 fn bounds(&self) -> Bounds<Pixels> {
1055 self.0.as_ref().lock().bounds()
1056 }
1057
1058 fn window_bounds(&self) -> WindowBounds {
1059 self.0.as_ref().lock().window_bounds()
1060 }
1061
1062 fn is_maximized(&self) -> bool {
1063 self.0.as_ref().lock().is_maximized()
1064 }
1065
1066 fn content_size(&self) -> Size<Pixels> {
1067 self.0.as_ref().lock().content_size()
1068 }
1069
1070 fn resize(&mut self, size: Size<Pixels>) {
1071 let this = self.0.lock();
1072 let window = this.native_window;
1073 let closed = this.closed.clone();
1074 this.foreground_executor
1075 .spawn(async move {
1076 if_window_not_closed(closed, || unsafe {
1077 window.setContentSize_(NSSize {
1078 width: size.width.as_f32() as f64,
1079 height: size.height.as_f32() as f64,
1080 });
1081 })
1082 })
1083 .detach();
1084 }
1085
1086 fn merge_all_windows(&self) {
1087 let native_window = self.0.lock().native_window;
1088 extern "C" fn merge_windows_async(context: *mut std::ffi::c_void) {
1089 unsafe {
1090 let native_window = context as id;
1091 let _: () = msg_send![native_window, mergeAllWindows:nil];
1092 }
1093 }
1094
1095 unsafe {
1096 DispatchQueue::main()
1097 .exec_async_f(native_window as *mut std::ffi::c_void, merge_windows_async);
1098 }
1099 }
1100
1101 fn move_tab_to_new_window(&self) {
1102 let native_window = self.0.lock().native_window;
1103 extern "C" fn move_tab_async(context: *mut std::ffi::c_void) {
1104 unsafe {
1105 let native_window = context as id;
1106 let _: () = msg_send![native_window, moveTabToNewWindow:nil];
1107 let _: () = msg_send![native_window, makeKeyAndOrderFront: nil];
1108 }
1109 }
1110
1111 unsafe {
1112 DispatchQueue::main()
1113 .exec_async_f(native_window as *mut std::ffi::c_void, move_tab_async);
1114 }
1115 }
1116
1117 fn toggle_window_tab_overview(&self) {
1118 let native_window = self.0.lock().native_window;
1119 unsafe {
1120 let _: () = msg_send![native_window, toggleTabOverview:nil];
1121 }
1122 }
1123
1124 fn set_tabbing_identifier(&self, tabbing_identifier: Option<String>) {
1125 let native_window = self.0.lock().native_window;
1126 unsafe {
1127 let allows_automatic_window_tabbing = tabbing_identifier.is_some();
1128 if allows_automatic_window_tabbing {
1129 let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: YES];
1130 } else {
1131 let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: NO];
1132 }
1133
1134 if let Some(tabbing_identifier) = tabbing_identifier {
1135 let tabbing_id = ns_string(tabbing_identifier.as_str());
1136 let _: () = msg_send![native_window, setTabbingIdentifier: tabbing_id];
1137 } else {
1138 let _: () = msg_send![native_window, setTabbingIdentifier:nil];
1139 }
1140 }
1141 }
1142
1143 fn scale_factor(&self) -> f32 {
1144 self.0.as_ref().lock().scale_factor()
1145 }
1146
1147 fn appearance(&self) -> WindowAppearance {
1148 unsafe {
1149 let appearance: id = msg_send![self.0.lock().native_window, effectiveAppearance];
1150 crate::window_appearance::window_appearance_from_native(appearance)
1151 }
1152 }
1153
1154 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
1155 unsafe {
1156 let screen = self.0.lock().native_window.screen();
1157 if screen.is_null() {
1158 return None;
1159 }
1160 let device_description: id = msg_send![screen, deviceDescription];
1161 let screen_number: id =
1162 NSDictionary::valueForKey_(device_description, ns_string("NSScreenNumber"));
1163
1164 let screen_number: u32 = msg_send![screen_number, unsignedIntValue];
1165
1166 Some(Rc::new(MacDisplay(screen_number)))
1167 }
1168 }
1169
1170 fn mouse_position(&self) -> Point<Pixels> {
1171 let position = unsafe {
1172 self.0
1173 .lock()
1174 .native_window
1175 .mouseLocationOutsideOfEventStream()
1176 };
1177 convert_mouse_position(position, self.content_size().height)
1178 }
1179
1180 fn modifiers(&self) -> Modifiers {
1181 unsafe {
1182 let modifiers: NSEventModifierFlags = msg_send![class!(NSEvent), modifierFlags];
1183
1184 let control = modifiers.contains(NSEventModifierFlags::NSControlKeyMask);
1185 let alt = modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask);
1186 let shift = modifiers.contains(NSEventModifierFlags::NSShiftKeyMask);
1187 let command = modifiers.contains(NSEventModifierFlags::NSCommandKeyMask);
1188 let function = modifiers.contains(NSEventModifierFlags::NSFunctionKeyMask);
1189
1190 Modifiers {
1191 control,
1192 alt,
1193 shift,
1194 platform: command,
1195 function,
1196 }
1197 }
1198 }
1199
1200 fn capslock(&self) -> Capslock {
1201 unsafe {
1202 let modifiers: NSEventModifierFlags = msg_send![class!(NSEvent), modifierFlags];
1203
1204 Capslock {
1205 on: modifiers.contains(NSEventModifierFlags::NSAlphaShiftKeyMask),
1206 }
1207 }
1208 }
1209
1210 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
1211 self.0.as_ref().lock().input_handler = Some(input_handler);
1212 }
1213
1214 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
1215 self.0.as_ref().lock().input_handler.take()
1216 }
1217
1218 fn prompt(
1219 &self,
1220 level: PromptLevel,
1221 msg: &str,
1222 detail: Option<&str>,
1223 answers: &[PromptButton],
1224 ) -> Option<oneshot::Receiver<usize>> {
1225 // macOs applies overrides to modal window buttons after they are added.
1226 // Two most important for this logic are:
1227 // * Buttons with "Cancel" title will be displayed as the last buttons in the modal
1228 // * Last button added to the modal via `addButtonWithTitle` stays focused
1229 // * Focused buttons react on "space"/" " keypresses
1230 // * Usage of `keyEquivalent`, `makeFirstResponder` or `setInitialFirstResponder` does not change the focus
1231 //
1232 // See also https://developer.apple.com/documentation/appkit/nsalert/1524532-addbuttonwithtitle#discussion
1233 // ```
1234 // By default, the first button has a key equivalent of Return,
1235 // any button with a title of “Cancel” has a key equivalent of Escape,
1236 // 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).
1237 // ```
1238 //
1239 // To avoid situations when the last element added is "Cancel" and it gets the focus
1240 // (hence stealing both ESC and Space shortcuts), we find and add one non-Cancel button
1241 // last, so it gets focus and a Space shortcut.
1242 // This way, "Save this file? Yes/No/Cancel"-ish modals will get all three buttons mapped with a key.
1243 let latest_non_cancel_label = answers
1244 .iter()
1245 .enumerate()
1246 .rev()
1247 .find(|(_, label)| !label.is_cancel())
1248 .filter(|&(label_index, _)| label_index > 0);
1249
1250 unsafe {
1251 let alert: id = msg_send![class!(NSAlert), alloc];
1252 let alert: id = msg_send![alert, init];
1253 let alert_style = match level {
1254 PromptLevel::Info => 1,
1255 PromptLevel::Warning => 0,
1256 PromptLevel::Critical => 2,
1257 };
1258 let _: () = msg_send![alert, setAlertStyle: alert_style];
1259 let _: () = msg_send![alert, setMessageText: ns_string(msg)];
1260 if let Some(detail) = detail {
1261 let _: () = msg_send![alert, setInformativeText: ns_string(detail)];
1262 }
1263
1264 for (ix, answer) in answers
1265 .iter()
1266 .enumerate()
1267 .filter(|&(ix, _)| Some(ix) != latest_non_cancel_label.map(|(ix, _)| ix))
1268 {
1269 let button: id = msg_send![alert, addButtonWithTitle: ns_string(answer.label())];
1270 let _: () = msg_send![button, setTag: ix as NSInteger];
1271
1272 if answer.is_cancel() {
1273 // Bind Escape Key to Cancel Button
1274 if let Some(key) = std::char::from_u32(crate::events::ESCAPE_KEY as u32) {
1275 let _: () =
1276 msg_send![button, setKeyEquivalent: ns_string(&key.to_string())];
1277 }
1278 }
1279 }
1280 if let Some((ix, answer)) = latest_non_cancel_label {
1281 let button: id = msg_send![alert, addButtonWithTitle: ns_string(answer.label())];
1282 let _: () = msg_send![button, setTag: ix as NSInteger];
1283 }
1284
1285 let (done_tx, done_rx) = oneshot::channel();
1286 let done_tx = Cell::new(Some(done_tx));
1287 let block = ConcreteBlock::new(move |answer: NSInteger| {
1288 let _: () = msg_send![alert, release];
1289 if let Some(done_tx) = done_tx.take() {
1290 let _ = done_tx.send(answer.try_into().unwrap());
1291 }
1292 });
1293 let block = block.copy();
1294 let lock = self.0.lock();
1295 let native_window = lock.native_window;
1296 let closed = lock.closed.clone();
1297 let executor = lock.foreground_executor.clone();
1298 executor
1299 .spawn(async move {
1300 if !closed.load(Ordering::Acquire) {
1301 let _: () = msg_send![
1302 alert,
1303 beginSheetModalForWindow: native_window
1304 completionHandler: block
1305 ];
1306 } else {
1307 let _: () = msg_send![alert, release];
1308 }
1309 })
1310 .detach();
1311
1312 Some(done_rx)
1313 }
1314 }
1315
1316 fn activate(&self) {
1317 let lock = self.0.lock();
1318 let window = lock.native_window;
1319 let closed = lock.closed.clone();
1320 let executor = lock.foreground_executor.clone();
1321 executor
1322 .spawn(async move {
1323 if !closed.load(Ordering::Acquire) {
1324 unsafe {
1325 let _: () = msg_send![window, makeKeyAndOrderFront: nil];
1326 }
1327 }
1328 })
1329 .detach();
1330 }
1331
1332 fn is_active(&self) -> bool {
1333 unsafe { self.0.lock().native_window.isKeyWindow() == YES }
1334 }
1335
1336 // is_hovered is unused on macOS. See Window::is_window_hovered.
1337 fn is_hovered(&self) -> bool {
1338 false
1339 }
1340
1341 fn set_title(&mut self, title: &str) {
1342 unsafe {
1343 let app = NSApplication::sharedApplication(nil);
1344 let window = self.0.lock().native_window;
1345 let title = ns_string(title);
1346 let _: () = msg_send![app, changeWindowsItem:window title:title filename:false];
1347 let _: () = msg_send![window, setTitle: title];
1348 self.0.lock().move_traffic_light();
1349 }
1350 }
1351
1352 fn get_title(&self) -> String {
1353 unsafe {
1354 let title: id = msg_send![self.0.lock().native_window, title];
1355 if title.is_null() {
1356 "".to_string()
1357 } else {
1358 title.to_str().to_string()
1359 }
1360 }
1361 }
1362
1363 fn set_app_id(&mut self, _app_id: &str) {}
1364
1365 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
1366 let mut this = self.0.as_ref().lock();
1367 this.background_appearance = background_appearance;
1368
1369 let opaque = background_appearance == WindowBackgroundAppearance::Opaque;
1370 this.renderer.update_transparency(!opaque);
1371
1372 unsafe {
1373 this.native_window.setOpaque_(opaque as BOOL);
1374 let background_color = if opaque {
1375 NSColor::colorWithSRGBRed_green_blue_alpha_(nil, 0f64, 0f64, 0f64, 1f64)
1376 } else {
1377 // Not using `+[NSColor clearColor]` to avoid broken shadow.
1378 NSColor::colorWithSRGBRed_green_blue_alpha_(nil, 0f64, 0f64, 0f64, 0.0001)
1379 };
1380 this.native_window.setBackgroundColor_(background_color);
1381
1382 if NSAppKitVersionNumber < NSAppKitVersionNumber12_0 {
1383 // Whether `-[NSVisualEffectView respondsToSelector:@selector(_updateProxyLayer)]`.
1384 // On macOS Catalina/Big Sur `NSVisualEffectView` doesn’t own concrete sublayers
1385 // but uses a `CAProxyLayer`. Use the legacy WindowServer API.
1386 let blur_radius = if background_appearance == WindowBackgroundAppearance::Blurred {
1387 80
1388 } else {
1389 0
1390 };
1391
1392 let window_number = this.native_window.windowNumber();
1393 CGSSetWindowBackgroundBlurRadius(CGSMainConnectionID(), window_number, blur_radius);
1394 } else {
1395 // On newer macOS `NSVisualEffectView` manages the effect layer directly. Using it
1396 // could have a better performance (it downsamples the backdrop) and more control
1397 // over the effect layer.
1398 if background_appearance != WindowBackgroundAppearance::Blurred {
1399 if let Some(blur_view) = this.blurred_view {
1400 NSView::removeFromSuperview(blur_view);
1401 this.blurred_view = None;
1402 }
1403 } else if this.blurred_view.is_none() {
1404 let content_view = this.native_window.contentView();
1405 let frame = NSView::bounds(content_view);
1406 let mut blur_view: id = msg_send![BLURRED_VIEW_CLASS, alloc];
1407 blur_view = NSView::initWithFrame_(blur_view, frame);
1408 blur_view.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable);
1409
1410 let _: () = msg_send![
1411 content_view,
1412 addSubview: blur_view
1413 positioned: NSWindowOrderingMode::NSWindowBelow
1414 relativeTo: nil
1415 ];
1416 this.blurred_view = Some(blur_view.autorelease());
1417 }
1418 }
1419 }
1420 }
1421
1422 fn background_appearance(&self) -> WindowBackgroundAppearance {
1423 self.0.as_ref().lock().background_appearance
1424 }
1425
1426 fn is_subpixel_rendering_supported(&self) -> bool {
1427 false
1428 }
1429
1430 fn set_edited(&mut self, edited: bool) {
1431 unsafe {
1432 let window = self.0.lock().native_window;
1433 msg_send![window, setDocumentEdited: edited as BOOL]
1434 }
1435
1436 // Changing the document edited state resets the traffic light position,
1437 // so we have to move it again.
1438 self.0.lock().move_traffic_light();
1439 }
1440
1441 fn show_character_palette(&self) {
1442 let this = self.0.lock();
1443 let window = this.native_window;
1444 this.foreground_executor
1445 .spawn(async move {
1446 unsafe {
1447 let app = NSApplication::sharedApplication(nil);
1448 let _: () = msg_send![app, orderFrontCharacterPalette: window];
1449 }
1450 })
1451 .detach();
1452 }
1453
1454 fn minimize(&self) {
1455 let window = self.0.lock().native_window;
1456 unsafe {
1457 window.miniaturize_(nil);
1458 }
1459 }
1460
1461 fn zoom(&self) {
1462 let this = self.0.lock();
1463 let window = this.native_window;
1464 let closed = this.closed.clone();
1465 this.foreground_executor
1466 .spawn(async move {
1467 if_window_not_closed(closed, || unsafe {
1468 window.zoom_(nil);
1469 })
1470 })
1471 .detach();
1472 }
1473
1474 fn toggle_fullscreen(&self) {
1475 let this = self.0.lock();
1476 let window = this.native_window;
1477 let closed = this.closed.clone();
1478 this.foreground_executor
1479 .spawn(async move {
1480 if_window_not_closed(closed, || unsafe {
1481 window.toggleFullScreen_(nil);
1482 })
1483 })
1484 .detach();
1485 }
1486
1487 fn is_fullscreen(&self) -> bool {
1488 let this = self.0.lock();
1489 let window = this.native_window;
1490
1491 unsafe {
1492 window
1493 .styleMask()
1494 .contains(NSWindowStyleMask::NSFullScreenWindowMask)
1495 }
1496 }
1497
1498 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
1499 self.0.as_ref().lock().request_frame_callback = Some(callback);
1500 }
1501
1502 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> gpui::DispatchEventResult>) {
1503 self.0.as_ref().lock().event_callback = Some(callback);
1504 }
1505
1506 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1507 self.0.as_ref().lock().activate_callback = Some(callback);
1508 }
1509
1510 fn on_hover_status_change(&self, _: Box<dyn FnMut(bool)>) {}
1511
1512 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
1513 self.0.as_ref().lock().resize_callback = Some(callback);
1514 }
1515
1516 fn on_moved(&self, callback: Box<dyn FnMut()>) {
1517 self.0.as_ref().lock().moved_callback = Some(callback);
1518 }
1519
1520 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
1521 self.0.as_ref().lock().should_close_callback = Some(callback);
1522 }
1523
1524 fn on_close(&self, callback: Box<dyn FnOnce()>) {
1525 self.0.as_ref().lock().close_callback = Some(callback);
1526 }
1527
1528 fn on_hit_test_window_control(&self, _callback: Box<dyn FnMut() -> Option<WindowControlArea>>) {
1529 }
1530
1531 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
1532 self.0.lock().appearance_changed_callback = Some(callback);
1533 }
1534
1535 fn tabbed_windows(&self) -> Option<Vec<SystemWindowTab>> {
1536 unsafe {
1537 let windows: id = msg_send![self.0.lock().native_window, tabbedWindows];
1538 if windows.is_null() {
1539 return None;
1540 }
1541
1542 let count: NSUInteger = msg_send![windows, count];
1543 let mut result = Vec::new();
1544 for i in 0..count {
1545 let window: id = msg_send![windows, objectAtIndex:i];
1546 if msg_send![window, isKindOfClass: WINDOW_CLASS] {
1547 let handle = get_window_state(&*window).lock().handle;
1548 let title: id = msg_send![window, title];
1549 let title = SharedString::from(title.to_str().to_string());
1550
1551 result.push(SystemWindowTab::new(title, handle));
1552 }
1553 }
1554
1555 Some(result)
1556 }
1557 }
1558
1559 fn tab_bar_visible(&self) -> bool {
1560 unsafe {
1561 let tab_group: id = msg_send![self.0.lock().native_window, tabGroup];
1562 if tab_group.is_null() {
1563 false
1564 } else {
1565 let tab_bar_visible: BOOL = msg_send![tab_group, isTabBarVisible];
1566 tab_bar_visible == YES
1567 }
1568 }
1569 }
1570
1571 fn on_move_tab_to_new_window(&self, callback: Box<dyn FnMut()>) {
1572 self.0.as_ref().lock().move_tab_to_new_window_callback = Some(callback);
1573 }
1574
1575 fn on_merge_all_windows(&self, callback: Box<dyn FnMut()>) {
1576 self.0.as_ref().lock().merge_all_windows_callback = Some(callback);
1577 }
1578
1579 fn on_select_next_tab(&self, callback: Box<dyn FnMut()>) {
1580 self.0.as_ref().lock().select_next_tab_callback = Some(callback);
1581 }
1582
1583 fn on_select_previous_tab(&self, callback: Box<dyn FnMut()>) {
1584 self.0.as_ref().lock().select_previous_tab_callback = Some(callback);
1585 }
1586
1587 fn on_toggle_tab_bar(&self, callback: Box<dyn FnMut()>) {
1588 self.0.as_ref().lock().toggle_tab_bar_callback = Some(callback);
1589 }
1590
1591 fn draw(&self, scene: &gpui::Scene) {
1592 let mut this = self.0.lock();
1593 this.renderer.draw(scene);
1594 }
1595
1596 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
1597 self.0.lock().renderer.sprite_atlas().clone()
1598 }
1599
1600 fn gpu_specs(&self) -> Option<gpui::GpuSpecs> {
1601 None
1602 }
1603
1604 fn update_ime_position(&self, _bounds: Bounds<Pixels>) {
1605 let executor = self.0.lock().foreground_executor.clone();
1606 executor
1607 .spawn(async move {
1608 unsafe {
1609 let input_context: id =
1610 msg_send![class!(NSTextInputContext), currentInputContext];
1611 if input_context.is_null() {
1612 return;
1613 }
1614 let _: () = msg_send![input_context, invalidateCharacterCoordinates];
1615 }
1616 })
1617 .detach()
1618 }
1619
1620 fn titlebar_double_click(&self) {
1621 let this = self.0.lock();
1622 let window = this.native_window;
1623 let closed = this.closed.clone();
1624 this.foreground_executor
1625 .spawn(async move {
1626 if_window_not_closed(closed, || {
1627 unsafe {
1628 let defaults: id = NSUserDefaults::standardUserDefaults();
1629 let domain = ns_string("NSGlobalDomain");
1630 let key = ns_string("AppleActionOnDoubleClick");
1631
1632 let dict: id = msg_send![defaults, persistentDomainForName: domain];
1633 let action: id = if !dict.is_null() {
1634 msg_send![dict, objectForKey: key]
1635 } else {
1636 nil
1637 };
1638
1639 let action_str = if !action.is_null() {
1640 CStr::from_ptr(NSString::UTF8String(action)).to_string_lossy()
1641 } else {
1642 "".into()
1643 };
1644
1645 match action_str.as_ref() {
1646 "None" => {
1647 // "Do Nothing" selected, so do no action
1648 }
1649 "Minimize" => {
1650 window.miniaturize_(nil);
1651 }
1652 "Maximize" => {
1653 window.zoom_(nil);
1654 }
1655 "Fill" => {
1656 // There is no documented API for "Fill" action, so we'll just zoom the window
1657 window.zoom_(nil);
1658 }
1659 _ => {
1660 window.zoom_(nil);
1661 }
1662 }
1663 }
1664 })
1665 })
1666 .detach();
1667 }
1668
1669 fn start_window_move(&self) {
1670 let this = self.0.lock();
1671 let window = this.native_window;
1672
1673 unsafe {
1674 let app = NSApplication::sharedApplication(nil);
1675 let event: id = msg_send![app, currentEvent];
1676 let _: () = msg_send![window, performWindowDragWithEvent: event];
1677 }
1678 }
1679
1680 fn play_system_bell(&self) {
1681 unsafe { NSBeep() }
1682 }
1683
1684 #[cfg(any(test, feature = "test-support"))]
1685 fn render_to_image(&self, scene: &gpui::Scene) -> Result<RgbaImage> {
1686 let mut this = self.0.lock();
1687 this.renderer.render_to_image(scene)
1688 }
1689}
1690
1691impl rwh::HasWindowHandle for MacWindow {
1692 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
1693 // SAFETY: The AppKitWindowHandle is a wrapper around a pointer to an NSView
1694 unsafe {
1695 Ok(rwh::WindowHandle::borrow_raw(rwh::RawWindowHandle::AppKit(
1696 rwh::AppKitWindowHandle::new(self.0.lock().native_view.cast()),
1697 )))
1698 }
1699 }
1700}
1701
1702impl rwh::HasDisplayHandle for MacWindow {
1703 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
1704 Ok(rwh::DisplayHandle::appkit())
1705 }
1706}
1707
1708fn get_scale_factor(native_window: id) -> f32 {
1709 let factor = unsafe {
1710 let screen: id = msg_send![native_window, screen];
1711 if screen.is_null() {
1712 return 2.0;
1713 }
1714 NSScreen::backingScaleFactor(screen) as f32
1715 };
1716
1717 // We are not certain what triggers this, but it seems that sometimes
1718 // this method would return 0 (https://github.com/zed-industries/zed/issues/6412)
1719 // It seems most likely that this would happen if the window has no screen
1720 // (if it is off-screen), though we'd expect to see viewDidChangeBackingProperties before
1721 // it was rendered for real.
1722 // Regardless, attempt to avoid the issue here.
1723 if factor == 0.0 { 2. } else { factor }
1724}
1725
1726unsafe fn get_window_state(object: &Object) -> Arc<Mutex<MacWindowState>> {
1727 unsafe {
1728 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1729 let rc1 = Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1730 let rc2 = rc1.clone();
1731 mem::forget(rc1);
1732 rc2
1733 }
1734}
1735
1736unsafe fn drop_window_state(object: &Object) {
1737 unsafe {
1738 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1739 Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1740 }
1741}
1742
1743extern "C" fn yes(_: &Object, _: Sel) -> BOOL {
1744 YES
1745}
1746
1747extern "C" fn dealloc_window(this: &Object, _: Sel) {
1748 unsafe {
1749 drop_window_state(this);
1750 let _: () = msg_send![super(this, class!(NSWindow)), dealloc];
1751 }
1752}
1753
1754extern "C" fn dealloc_view(this: &Object, _: Sel) {
1755 unsafe {
1756 drop_window_state(this);
1757 let _: () = msg_send![super(this, class!(NSView)), dealloc];
1758 }
1759}
1760
1761extern "C" fn handle_key_equivalent(this: &Object, _: Sel, native_event: id) -> BOOL {
1762 handle_key_event(this, native_event, true)
1763}
1764
1765extern "C" fn handle_key_down(this: &Object, _: Sel, native_event: id) {
1766 handle_key_event(this, native_event, false);
1767}
1768
1769extern "C" fn handle_key_up(this: &Object, _: Sel, native_event: id) {
1770 handle_key_event(this, native_event, false);
1771}
1772
1773// Things to test if you're modifying this method:
1774// U.S. layout:
1775// - The IME consumes characters like 'j' and 'k', which makes paging through `less` in
1776// the terminal behave incorrectly by default. This behavior should be patched by our
1777// IME integration
1778// - `alt-t` should open the tasks menu
1779// - In vim mode, this keybinding should work:
1780// ```
1781// {
1782// "context": "Editor && vim_mode == insert",
1783// "bindings": {"j j": "vim::NormalBefore"}
1784// }
1785// ```
1786// and typing 'j k' in insert mode with this keybinding should insert the two characters
1787// Brazilian layout:
1788// - `" space` should create an unmarked quote
1789// - `" backspace` should delete the marked quote
1790// - `" "`should create an unmarked quote and a second marked quote
1791// - `" up` should insert a quote, unmark it, and move up one line
1792// - `" cmd-down` should insert a quote, unmark it, and move to the end of the file
1793// - `cmd-ctrl-space` and clicking on an emoji should type it
1794// Czech (QWERTY) layout:
1795// - in vim mode `option-4` should go to end of line (same as $)
1796// Japanese (Romaji) layout:
1797// - type `a i left down up enter enter` should create an unmarked text "愛"
1798// - In vim mode with `jj` bound to `vim::NormalBefore` in insert mode, typing 'j i' with
1799// Japanese IME should produce "じ" (ji), not "jい"
1800
1801/// Returns true if the current keyboard input source is a composition-based IME
1802/// (e.g. Japanese Hiragana, Korean, Chinese Pinyin) that produces non-ASCII output.
1803///
1804/// This checks two properties:
1805/// 1. The source type is `kTISTypeKeyboardInputMode` (an IME input mode, not a plain
1806/// keyboard layout). This excludes non-ASCII layouts like Armenian and Ukrainian
1807/// that map keys directly without composition.
1808/// 2. The source is not ASCII-capable, which excludes modes like Japanese Romaji that
1809/// produce ASCII characters and should allow multi-stroke keybindings like `jj`.
1810unsafe fn is_ime_input_source_active() -> bool {
1811 unsafe {
1812 let source = TISCopyCurrentKeyboardInputSource();
1813 if source.is_null() {
1814 return false;
1815 }
1816
1817 let source_type =
1818 TISGetInputSourceProperty(source, kTISPropertyInputSourceType as *const c_void);
1819 let is_input_mode = !source_type.is_null()
1820 && CFEqual(
1821 source_type as CFTypeRef,
1822 kTISTypeKeyboardInputMode as CFTypeRef,
1823 ) != 0;
1824
1825 let is_ascii = TISGetInputSourceProperty(
1826 source,
1827 kTISPropertyInputSourceIsASCIICapable as *const c_void,
1828 );
1829 let is_ascii_capable = !is_ascii.is_null() && CFBooleanGetValue(is_ascii as CFBooleanRef);
1830
1831 CFRelease(source as CFTypeRef);
1832
1833 is_input_mode && !is_ascii_capable
1834 }
1835}
1836
1837extern "C" fn handle_key_event(this: &Object, native_event: id, key_equivalent: bool) -> BOOL {
1838 let window_state = unsafe { get_window_state(this) };
1839 let mut lock = window_state.as_ref().lock();
1840
1841 let window_height = lock.content_size().height;
1842 let event = unsafe { platform_input_from_native(native_event, Some(window_height)) };
1843
1844 let Some(event) = event else {
1845 return NO;
1846 };
1847
1848 let run_callback = |event: PlatformInput| -> BOOL {
1849 let mut callback = window_state.as_ref().lock().event_callback.take();
1850 let handled: BOOL = if let Some(callback) = callback.as_mut() {
1851 !callback(event).propagate as BOOL
1852 } else {
1853 NO
1854 };
1855 window_state.as_ref().lock().event_callback = callback;
1856 handled
1857 };
1858
1859 match event {
1860 PlatformInput::KeyDown(key_down_event) => {
1861 // For certain keystrokes, macOS will first dispatch a "key equivalent" event.
1862 // If that event isn't handled, it will then dispatch a "key down" event. GPUI
1863 // makes no distinction between these two types of events, so we need to ignore
1864 // the "key down" event if we've already just processed its "key equivalent" version.
1865 if key_equivalent {
1866 lock.last_key_equivalent = Some(key_down_event.clone());
1867 } else if lock.last_key_equivalent.take().as_ref() == Some(&key_down_event) {
1868 return NO;
1869 }
1870
1871 drop(lock);
1872
1873 let is_composing =
1874 with_input_handler(this, |input_handler| input_handler.marked_text_range())
1875 .flatten()
1876 .is_some();
1877
1878 // If we're composing, send the key to the input handler first;
1879 // otherwise we only send to the input handler if we don't have a matching binding.
1880 // The input handler may call `do_command_by_selector` if it doesn't know how to handle
1881 // a key. If it does so, it will return YES so we won't send the key twice.
1882 // We also do this for non-printing keys (like arrow keys and escape) as the IME menu
1883 // may need them even if there is no marked text;
1884 // however we skip keys with control or the input handler adds control-characters to the buffer.
1885 // and keys with function, as the input handler swallows them.
1886 // and keys with platform (Cmd), so that Cmd+key events (e.g. Cmd+`) are not
1887 // consumed by the IME on non-QWERTY / dead-key layouts.
1888 // We also send printable keys to the IME first when an IME input source (e.g. Japanese,
1889 // Korean, Chinese) is active and the input handler accepts text input. This prevents
1890 // multi-stroke keybindings like `jj` from intercepting keys that the IME should compose
1891 // (e.g. typing 'ji' should produce 'じ', not 'jい'). If the IME doesn't handle the key,
1892 // it calls `doCommandBySelector:` which routes it back to keybinding matching.
1893 let is_ime_printable_key = !is_composing
1894 && key_down_event
1895 .keystroke
1896 .key_char
1897 .as_ref()
1898 .is_some_and(|key_char| key_char.chars().all(|c| !c.is_control()))
1899 && !key_down_event.keystroke.modifiers.control
1900 && !key_down_event.keystroke.modifiers.function
1901 && !key_down_event.keystroke.modifiers.platform
1902 && unsafe { is_ime_input_source_active() }
1903 && with_input_handler(this, |input_handler| {
1904 input_handler.query_prefers_ime_for_printable_keys()
1905 })
1906 .unwrap_or(false);
1907
1908 if is_composing
1909 || is_ime_printable_key
1910 || (key_down_event.keystroke.key_char.is_none()
1911 && !key_down_event.keystroke.modifiers.control
1912 && !key_down_event.keystroke.modifiers.function
1913 && !key_down_event.keystroke.modifiers.platform)
1914 {
1915 {
1916 let mut lock = window_state.as_ref().lock();
1917 lock.keystroke_for_do_command = Some(key_down_event.keystroke.clone());
1918 lock.do_command_handled.take();
1919 drop(lock);
1920 }
1921
1922 let handled: BOOL = unsafe {
1923 let input_context: id = msg_send![this, inputContext];
1924 msg_send![input_context, handleEvent: native_event]
1925 };
1926 window_state.as_ref().lock().keystroke_for_do_command.take();
1927 if let Some(handled) = window_state.as_ref().lock().do_command_handled.take() {
1928 return handled as BOOL;
1929 } else if handled == YES {
1930 return YES;
1931 }
1932
1933 let handled = run_callback(PlatformInput::KeyDown(key_down_event));
1934 return handled;
1935 }
1936
1937 let handled = run_callback(PlatformInput::KeyDown(key_down_event.clone()));
1938 if handled == YES {
1939 return YES;
1940 }
1941
1942 if key_down_event.is_held
1943 && let Some(key_char) = key_down_event.keystroke.key_char.as_ref()
1944 {
1945 let handled = with_input_handler(this, |input_handler| {
1946 if !input_handler.apple_press_and_hold_enabled() {
1947 input_handler.replace_text_in_range(None, key_char);
1948 return YES;
1949 }
1950 NO
1951 });
1952 if handled == Some(YES) {
1953 return YES;
1954 }
1955 }
1956
1957 // Don't send key equivalents to the input handler if there are key modifiers other
1958 // than Function key, or macOS shortcuts like cmd-` will stop working.
1959 if key_equivalent && key_down_event.keystroke.modifiers != Modifiers::function() {
1960 return NO;
1961 }
1962
1963 unsafe {
1964 let input_context: id = msg_send![this, inputContext];
1965 msg_send![input_context, handleEvent: native_event]
1966 }
1967 }
1968
1969 PlatformInput::KeyUp(_) => {
1970 drop(lock);
1971 run_callback(event)
1972 }
1973
1974 _ => NO,
1975 }
1976}
1977
1978extern "C" fn handle_view_event(this: &Object, _: Sel, native_event: id) {
1979 let window_state = unsafe { get_window_state(this) };
1980 let weak_window_state = Arc::downgrade(&window_state);
1981 let mut lock = window_state.as_ref().lock();
1982 let window_height = lock.content_size().height;
1983 let event = unsafe { platform_input_from_native(native_event, Some(window_height)) };
1984
1985 if let Some(mut event) = event {
1986 match &mut event {
1987 PlatformInput::MouseDown(
1988 event @ MouseDownEvent {
1989 button: MouseButton::Left,
1990 modifiers: Modifiers { control: true, .. },
1991 ..
1992 },
1993 ) => {
1994 // On mac, a ctrl-left click should be handled as a right click.
1995 *event = MouseDownEvent {
1996 button: MouseButton::Right,
1997 modifiers: Modifiers {
1998 control: false,
1999 ..event.modifiers
2000 },
2001 click_count: 1,
2002 ..*event
2003 };
2004 }
2005
2006 // Handles focusing click.
2007 PlatformInput::MouseDown(
2008 event @ MouseDownEvent {
2009 button: MouseButton::Left,
2010 ..
2011 },
2012 ) if (lock.first_mouse) => {
2013 *event = MouseDownEvent {
2014 first_mouse: true,
2015 ..*event
2016 };
2017 lock.first_mouse = false;
2018 }
2019
2020 // Because we map a ctrl-left_down to a right_down -> right_up let's ignore
2021 // the ctrl-left_up to avoid having a mismatch in button down/up events if the
2022 // user is still holding ctrl when releasing the left mouse button
2023 PlatformInput::MouseUp(
2024 event @ MouseUpEvent {
2025 button: MouseButton::Left,
2026 modifiers: Modifiers { control: true, .. },
2027 ..
2028 },
2029 ) => {
2030 *event = MouseUpEvent {
2031 button: MouseButton::Right,
2032 modifiers: Modifiers {
2033 control: false,
2034 ..event.modifiers
2035 },
2036 click_count: 1,
2037 ..*event
2038 };
2039 }
2040
2041 _ => {}
2042 };
2043
2044 match &event {
2045 PlatformInput::MouseDown(_) => {
2046 drop(lock);
2047 unsafe {
2048 let input_context: id = msg_send![this, inputContext];
2049 msg_send![input_context, handleEvent: native_event]
2050 }
2051 lock = window_state.as_ref().lock();
2052 }
2053 PlatformInput::MouseMove(
2054 event @ MouseMoveEvent {
2055 pressed_button: Some(_),
2056 ..
2057 },
2058 ) => {
2059 // Synthetic drag is used for selecting long buffer contents while buffer is being scrolled.
2060 // External file drag and drop is able to emit its own synthetic mouse events which will conflict
2061 // with these ones.
2062 if !lock.external_files_dragged {
2063 lock.synthetic_drag_counter += 1;
2064 let executor = lock.foreground_executor.clone();
2065 executor
2066 .spawn(synthetic_drag(
2067 weak_window_state,
2068 lock.synthetic_drag_counter,
2069 event.clone(),
2070 lock.background_executor.clone(),
2071 ))
2072 .detach();
2073 }
2074 }
2075
2076 PlatformInput::MouseUp(MouseUpEvent { .. }) => {
2077 lock.synthetic_drag_counter += 1;
2078 }
2079
2080 PlatformInput::ModifiersChanged(ModifiersChangedEvent {
2081 modifiers,
2082 capslock,
2083 }) => {
2084 // Only raise modifiers changed event when they have actually changed
2085 if let Some(PlatformInput::ModifiersChanged(ModifiersChangedEvent {
2086 modifiers: prev_modifiers,
2087 capslock: prev_capslock,
2088 })) = &lock.previous_modifiers_changed_event
2089 && prev_modifiers == modifiers
2090 && prev_capslock == capslock
2091 {
2092 return;
2093 }
2094
2095 lock.previous_modifiers_changed_event = Some(event.clone());
2096 }
2097
2098 _ => {}
2099 }
2100
2101 if let Some(mut callback) = lock.event_callback.take() {
2102 drop(lock);
2103 callback(event);
2104 window_state.lock().event_callback = Some(callback);
2105 }
2106 }
2107}
2108
2109extern "C" fn window_did_change_occlusion_state(this: &Object, _: Sel, _: id) {
2110 let window_state = unsafe { get_window_state(this) };
2111 let lock = &mut *window_state.lock();
2112 unsafe {
2113 if lock
2114 .native_window
2115 .occlusionState()
2116 .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible)
2117 {
2118 lock.move_traffic_light();
2119 lock.start_display_link();
2120 } else {
2121 lock.stop_display_link();
2122 }
2123 }
2124}
2125
2126extern "C" fn window_did_resize(this: &Object, _: Sel, _: id) {
2127 let window_state = unsafe { get_window_state(this) };
2128 window_state.as_ref().lock().move_traffic_light();
2129}
2130
2131extern "C" fn window_will_enter_fullscreen(this: &Object, _: Sel, _: id) {
2132 let window_state = unsafe { get_window_state(this) };
2133 let mut lock = window_state.as_ref().lock();
2134 lock.fullscreen_restore_bounds = lock.bounds();
2135
2136 let min_version = NSOperatingSystemVersion::new(15, 3, 0);
2137
2138 if is_macos_version_at_least(min_version) {
2139 unsafe {
2140 lock.native_window.setTitlebarAppearsTransparent_(NO);
2141 }
2142 }
2143}
2144
2145extern "C" fn window_will_exit_fullscreen(this: &Object, _: Sel, _: id) {
2146 let window_state = unsafe { get_window_state(this) };
2147 let lock = window_state.as_ref().lock();
2148
2149 let min_version = NSOperatingSystemVersion::new(15, 3, 0);
2150
2151 if is_macos_version_at_least(min_version) && lock.transparent_titlebar {
2152 unsafe {
2153 lock.native_window.setTitlebarAppearsTransparent_(YES);
2154 }
2155 }
2156}
2157
2158pub(crate) fn is_macos_version_at_least(version: NSOperatingSystemVersion) -> bool {
2159 unsafe { NSProcessInfo::processInfo(nil).isOperatingSystemAtLeastVersion(version) }
2160}
2161
2162extern "C" fn window_did_move(this: &Object, _: Sel, _: id) {
2163 let window_state = unsafe { get_window_state(this) };
2164 let mut lock = window_state.as_ref().lock();
2165 if let Some(mut callback) = lock.moved_callback.take() {
2166 drop(lock);
2167 callback();
2168 window_state.lock().moved_callback = Some(callback);
2169 }
2170}
2171
2172// Update the window scale factor and drawable size, and call the resize callback if any.
2173fn update_window_scale_factor(window_state: &Arc<Mutex<MacWindowState>>) {
2174 let mut lock = window_state.as_ref().lock();
2175 let scale_factor = lock.scale_factor();
2176 let size = lock.content_size();
2177 let drawable_size = size.to_device_pixels(scale_factor);
2178 if let Some(layer) = lock.renderer.layer() {
2179 unsafe {
2180 let _: () = msg_send![
2181 layer,
2182 setContentsScale: scale_factor as f64
2183 ];
2184 }
2185 }
2186
2187 lock.renderer.update_drawable_size(drawable_size);
2188
2189 if let Some(mut callback) = lock.resize_callback.take() {
2190 let content_size = lock.content_size();
2191 let scale_factor = lock.scale_factor();
2192 drop(lock);
2193 callback(content_size, scale_factor);
2194 window_state.as_ref().lock().resize_callback = Some(callback);
2195 };
2196}
2197
2198extern "C" fn window_did_change_screen(this: &Object, _: Sel, _: id) {
2199 let window_state = unsafe { get_window_state(this) };
2200 let mut lock = window_state.as_ref().lock();
2201 lock.start_display_link();
2202 drop(lock);
2203 update_window_scale_factor(&window_state);
2204}
2205
2206extern "C" fn window_did_change_key_status(this: &Object, selector: Sel, _: id) {
2207 let window_state = unsafe { get_window_state(this) };
2208 let lock = window_state.lock();
2209 let is_active = unsafe { lock.native_window.isKeyWindow() == YES };
2210
2211 // When opening a pop-up while the application isn't active, Cocoa sends a spurious
2212 // `windowDidBecomeKey` message to the previous key window even though that window
2213 // isn't actually key. This causes a bug if the application is later activated while
2214 // the pop-up is still open, making it impossible to activate the previous key window
2215 // even if the pop-up gets closed. The only way to activate it again is to de-activate
2216 // the app and re-activate it, which is a pretty bad UX.
2217 // The following code detects the spurious event and invokes `resignKeyWindow`:
2218 // in theory, we're not supposed to invoke this method manually but it balances out
2219 // the spurious `becomeKeyWindow` event and helps us work around that bug.
2220 if selector == sel!(windowDidBecomeKey:) && !is_active {
2221 let native_window = lock.native_window;
2222 drop(lock);
2223 unsafe {
2224 let _: () = msg_send![native_window, resignKeyWindow];
2225 }
2226 return;
2227 }
2228
2229 let executor = lock.foreground_executor.clone();
2230 drop(lock);
2231
2232 // When a window becomes active, trigger an immediate synchronous frame request to prevent
2233 // tab flicker when switching between windows in native tabs mode.
2234 //
2235 // This is only done on subsequent activations (not the first) to ensure the initial focus
2236 // path is properly established. Without this guard, the focus state would remain unset until
2237 // the first mouse click, causing keybindings to be non-functional.
2238 if selector == sel!(windowDidBecomeKey:) && is_active {
2239 let window_state = unsafe { get_window_state(this) };
2240 let mut lock = window_state.lock();
2241
2242 if lock.activated_least_once {
2243 if let Some(mut callback) = lock.request_frame_callback.take() {
2244 lock.renderer.set_presents_with_transaction(true);
2245 lock.stop_display_link();
2246 drop(lock);
2247 callback(Default::default());
2248
2249 let mut lock = window_state.lock();
2250 lock.request_frame_callback = Some(callback);
2251 lock.renderer.set_presents_with_transaction(false);
2252 lock.start_display_link();
2253 }
2254 } else {
2255 lock.activated_least_once = true;
2256 }
2257 }
2258
2259 executor
2260 .spawn(async move {
2261 let mut lock = window_state.as_ref().lock();
2262 if is_active {
2263 lock.move_traffic_light();
2264 }
2265
2266 if let Some(mut callback) = lock.activate_callback.take() {
2267 drop(lock);
2268 callback(is_active);
2269 window_state.lock().activate_callback = Some(callback);
2270 };
2271 })
2272 .detach();
2273}
2274
2275extern "C" fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL {
2276 let window_state = unsafe { get_window_state(this) };
2277 let mut lock = window_state.as_ref().lock();
2278 if let Some(mut callback) = lock.should_close_callback.take() {
2279 drop(lock);
2280 let should_close = callback();
2281 window_state.lock().should_close_callback = Some(callback);
2282 should_close as BOOL
2283 } else {
2284 YES
2285 }
2286}
2287
2288extern "C" fn close_window(this: &Object, _: Sel) {
2289 unsafe {
2290 let close_callback = {
2291 let window_state = get_window_state(this);
2292 let mut lock = window_state.as_ref().lock();
2293 lock.closed.store(true, Ordering::Release);
2294 lock.close_callback.take()
2295 };
2296
2297 if let Some(callback) = close_callback {
2298 callback();
2299 }
2300
2301 let _: () = msg_send![super(this, class!(NSWindow)), close];
2302 }
2303}
2304
2305extern "C" fn make_backing_layer(this: &Object, _: Sel) -> id {
2306 let window_state = unsafe { get_window_state(this) };
2307 let window_state = window_state.as_ref().lock();
2308 window_state.renderer.layer_ptr() as id
2309}
2310
2311extern "C" fn view_did_change_backing_properties(this: &Object, _: Sel) {
2312 let window_state = unsafe { get_window_state(this) };
2313 update_window_scale_factor(&window_state);
2314}
2315
2316extern "C" fn set_frame_size(this: &Object, _: Sel, size: NSSize) {
2317 fn convert(value: NSSize) -> Size<Pixels> {
2318 Size {
2319 width: px(value.width as f32),
2320 height: px(value.height as f32),
2321 }
2322 }
2323
2324 let window_state = unsafe { get_window_state(this) };
2325 let mut lock = window_state.as_ref().lock();
2326
2327 let new_size = convert(size);
2328 let old_size = unsafe {
2329 let old_frame: NSRect = msg_send![this, frame];
2330 convert(old_frame.size)
2331 };
2332
2333 if old_size == new_size {
2334 return;
2335 }
2336
2337 unsafe {
2338 let _: () = msg_send![super(this, class!(NSView)), setFrameSize: size];
2339 }
2340
2341 let scale_factor = lock.scale_factor();
2342 let drawable_size = new_size.to_device_pixels(scale_factor);
2343 lock.renderer.update_drawable_size(drawable_size);
2344
2345 if let Some(mut callback) = lock.resize_callback.take() {
2346 let content_size = lock.content_size();
2347 let scale_factor = lock.scale_factor();
2348 drop(lock);
2349 callback(content_size, scale_factor);
2350 window_state.lock().resize_callback = Some(callback);
2351 };
2352}
2353
2354extern "C" fn display_layer(this: &Object, _: Sel, _: id) {
2355 let window_state = unsafe { get_window_state(this) };
2356 let mut lock = window_state.lock();
2357 if let Some(mut callback) = lock.request_frame_callback.take() {
2358 lock.renderer.set_presents_with_transaction(true);
2359 lock.stop_display_link();
2360 drop(lock);
2361 callback(Default::default());
2362
2363 let mut lock = window_state.lock();
2364 lock.request_frame_callback = Some(callback);
2365 lock.renderer.set_presents_with_transaction(false);
2366 lock.start_display_link();
2367 }
2368}
2369
2370extern "C" fn step(view: *mut c_void) {
2371 let view = view as id;
2372 let window_state = unsafe { get_window_state(&*view) };
2373 let mut lock = window_state.lock();
2374
2375 if let Some(mut callback) = lock.request_frame_callback.take() {
2376 drop(lock);
2377 callback(Default::default());
2378 window_state.lock().request_frame_callback = Some(callback);
2379 }
2380}
2381
2382extern "C" fn valid_attributes_for_marked_text(_: &Object, _: Sel) -> id {
2383 unsafe { msg_send![class!(NSArray), array] }
2384}
2385
2386extern "C" fn has_marked_text(this: &Object, _: Sel) -> BOOL {
2387 let has_marked_text_result =
2388 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
2389
2390 has_marked_text_result.is_some() as BOOL
2391}
2392
2393extern "C" fn marked_range(this: &Object, _: Sel) -> NSRange {
2394 let marked_range_result =
2395 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
2396
2397 marked_range_result.map_or(NSRange::invalid(), |range| range.into())
2398}
2399
2400extern "C" fn selected_range(this: &Object, _: Sel) -> NSRange {
2401 let selected_range_result = with_input_handler(this, |input_handler| {
2402 input_handler.selected_text_range(false)
2403 })
2404 .flatten();
2405
2406 selected_range_result.map_or(NSRange::invalid(), |selection| selection.range.into())
2407}
2408
2409extern "C" fn first_rect_for_character_range(
2410 this: &Object,
2411 _: Sel,
2412 range: NSRange,
2413 _: id,
2414) -> NSRect {
2415 let frame = get_frame(this);
2416 with_input_handler(this, |input_handler| {
2417 input_handler.bounds_for_range(range.to_range()?)
2418 })
2419 .flatten()
2420 .map_or(
2421 NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.)),
2422 |bounds| {
2423 NSRect::new(
2424 NSPoint::new(
2425 frame.origin.x + bounds.origin.x.as_f32() as f64,
2426 frame.origin.y + frame.size.height
2427 - bounds.origin.y.as_f32() as f64
2428 - bounds.size.height.as_f32() as f64,
2429 ),
2430 NSSize::new(
2431 bounds.size.width.as_f32() as f64,
2432 bounds.size.height.as_f32() as f64,
2433 ),
2434 )
2435 },
2436 )
2437}
2438
2439fn get_frame(this: &Object) -> NSRect {
2440 unsafe {
2441 let state = get_window_state(this);
2442 let lock = state.lock();
2443 let mut frame = NSWindow::frame(lock.native_window);
2444 let content_layout_rect: CGRect = msg_send![lock.native_window, contentLayoutRect];
2445 let style_mask: NSWindowStyleMask = msg_send![lock.native_window, styleMask];
2446 if !style_mask.contains(NSWindowStyleMask::NSFullSizeContentViewWindowMask) {
2447 frame.origin.y -= frame.size.height - content_layout_rect.size.height;
2448 }
2449 frame
2450 }
2451}
2452
2453extern "C" fn insert_text(this: &Object, _: Sel, text: id, replacement_range: NSRange) {
2454 unsafe {
2455 let is_attributed_string: BOOL =
2456 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
2457 let text: id = if is_attributed_string == YES {
2458 msg_send![text, string]
2459 } else {
2460 text
2461 };
2462
2463 let text = text.to_str();
2464 let replacement_range = replacement_range.to_range();
2465 with_input_handler(this, |input_handler| {
2466 input_handler.replace_text_in_range(replacement_range, text)
2467 });
2468 }
2469}
2470
2471extern "C" fn set_marked_text(
2472 this: &Object,
2473 _: Sel,
2474 text: id,
2475 selected_range: NSRange,
2476 replacement_range: NSRange,
2477) {
2478 unsafe {
2479 let is_attributed_string: BOOL =
2480 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
2481 let text: id = if is_attributed_string == YES {
2482 msg_send![text, string]
2483 } else {
2484 text
2485 };
2486 let selected_range = selected_range.to_range();
2487 let replacement_range = replacement_range.to_range();
2488 let text = text.to_str();
2489 with_input_handler(this, |input_handler| {
2490 input_handler.replace_and_mark_text_in_range(replacement_range, text, selected_range)
2491 });
2492 }
2493}
2494extern "C" fn unmark_text(this: &Object, _: Sel) {
2495 with_input_handler(this, |input_handler| input_handler.unmark_text());
2496}
2497
2498extern "C" fn attributed_substring_for_proposed_range(
2499 this: &Object,
2500 _: Sel,
2501 range: NSRange,
2502 actual_range: *mut c_void,
2503) -> id {
2504 with_input_handler(this, |input_handler| {
2505 let range = range.to_range()?;
2506 if range.is_empty() {
2507 return None;
2508 }
2509 let mut adjusted: Option<Range<usize>> = None;
2510
2511 let selected_text = input_handler.text_for_range(range.clone(), &mut adjusted)?;
2512 if let Some(adjusted) = adjusted
2513 && adjusted != range
2514 {
2515 unsafe { (actual_range as *mut NSRange).write(NSRange::from(adjusted)) };
2516 }
2517 unsafe {
2518 let string: id = msg_send![class!(NSAttributedString), alloc];
2519 let string: id = msg_send![string, initWithString: ns_string(&selected_text)];
2520 Some(string)
2521 }
2522 })
2523 .flatten()
2524 .unwrap_or(nil)
2525}
2526
2527// We ignore which selector it asks us to do because the user may have
2528// bound the shortcut to something else.
2529extern "C" fn do_command_by_selector(this: &Object, _: Sel, _: Sel) {
2530 let state = unsafe { get_window_state(this) };
2531 let mut lock = state.as_ref().lock();
2532 let keystroke = lock.keystroke_for_do_command.take();
2533 let mut event_callback = lock.event_callback.take();
2534 drop(lock);
2535
2536 if let Some((keystroke, callback)) = keystroke.zip(event_callback.as_mut()) {
2537 let handled = (callback)(PlatformInput::KeyDown(KeyDownEvent {
2538 keystroke,
2539 is_held: false,
2540 prefer_character_input: false,
2541 }));
2542 state.as_ref().lock().do_command_handled = Some(!handled.propagate);
2543 }
2544
2545 state.as_ref().lock().event_callback = event_callback;
2546}
2547
2548extern "C" fn view_did_change_effective_appearance(this: &Object, _: Sel) {
2549 unsafe {
2550 let state = get_window_state(this);
2551 let mut lock = state.as_ref().lock();
2552 if let Some(mut callback) = lock.appearance_changed_callback.take() {
2553 drop(lock);
2554 callback();
2555 state.lock().appearance_changed_callback = Some(callback);
2556 }
2557 }
2558}
2559
2560extern "C" fn accepts_first_mouse(this: &Object, _: Sel, _: id) -> BOOL {
2561 let window_state = unsafe { get_window_state(this) };
2562 let mut lock = window_state.as_ref().lock();
2563 lock.first_mouse = true;
2564 YES
2565}
2566
2567extern "C" fn character_index_for_point(this: &Object, _: Sel, position: NSPoint) -> u64 {
2568 let position = screen_point_to_gpui_point(this, position);
2569 with_input_handler(this, |input_handler| {
2570 input_handler.character_index_for_point(position)
2571 })
2572 .flatten()
2573 .map(|index| index as u64)
2574 .unwrap_or(NSNotFound as u64)
2575}
2576
2577fn screen_point_to_gpui_point(this: &Object, position: NSPoint) -> Point<Pixels> {
2578 let frame = get_frame(this);
2579 let window_x = position.x - frame.origin.x;
2580 let window_y = frame.size.height - (position.y - frame.origin.y);
2581
2582 point(px(window_x as f32), px(window_y as f32))
2583}
2584
2585extern "C" fn dragging_entered(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
2586 let window_state = unsafe { get_window_state(this) };
2587 let position = drag_event_position(&window_state, dragging_info);
2588 let paths = external_paths_from_event(dragging_info);
2589 if let Some(event) = paths.map(|paths| FileDropEvent::Entered { position, paths })
2590 && send_file_drop_event(window_state, event)
2591 {
2592 return NSDragOperationCopy;
2593 }
2594 NSDragOperationNone
2595}
2596
2597extern "C" fn dragging_updated(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
2598 let window_state = unsafe { get_window_state(this) };
2599 let position = drag_event_position(&window_state, dragging_info);
2600 if send_file_drop_event(window_state, FileDropEvent::Pending { position }) {
2601 NSDragOperationCopy
2602 } else {
2603 NSDragOperationNone
2604 }
2605}
2606
2607extern "C" fn dragging_exited(this: &Object, _: Sel, _: id) {
2608 let window_state = unsafe { get_window_state(this) };
2609 send_file_drop_event(window_state, FileDropEvent::Exited);
2610}
2611
2612extern "C" fn perform_drag_operation(this: &Object, _: Sel, dragging_info: id) -> BOOL {
2613 let window_state = unsafe { get_window_state(this) };
2614 let position = drag_event_position(&window_state, dragging_info);
2615 send_file_drop_event(window_state, FileDropEvent::Submit { position }).to_objc()
2616}
2617
2618fn external_paths_from_event(dragging_info: *mut Object) -> Option<ExternalPaths> {
2619 let mut paths = SmallVec::new();
2620 let pasteboard: id = unsafe { msg_send![dragging_info, draggingPasteboard] };
2621 let filenames = unsafe { NSPasteboard::propertyListForType(pasteboard, NSFilenamesPboardType) };
2622 if filenames == nil {
2623 return None;
2624 }
2625 for file in unsafe { filenames.iter() } {
2626 let path = unsafe {
2627 let f = NSString::UTF8String(file);
2628 CStr::from_ptr(f).to_string_lossy().into_owned()
2629 };
2630 paths.push(PathBuf::from(path))
2631 }
2632 Some(ExternalPaths(paths))
2633}
2634
2635extern "C" fn conclude_drag_operation(this: &Object, _: Sel, _: id) {
2636 let window_state = unsafe { get_window_state(this) };
2637 send_file_drop_event(window_state, FileDropEvent::Exited);
2638}
2639
2640async fn synthetic_drag(
2641 window_state: Weak<Mutex<MacWindowState>>,
2642 drag_id: usize,
2643 event: MouseMoveEvent,
2644 executor: BackgroundExecutor,
2645) {
2646 loop {
2647 executor.timer(Duration::from_millis(16)).await;
2648 if let Some(window_state) = window_state.upgrade() {
2649 let mut lock = window_state.lock();
2650 if lock.synthetic_drag_counter == drag_id {
2651 if let Some(mut callback) = lock.event_callback.take() {
2652 drop(lock);
2653 callback(PlatformInput::MouseMove(event.clone()));
2654 window_state.lock().event_callback = Some(callback);
2655 }
2656 } else {
2657 break;
2658 }
2659 }
2660 }
2661}
2662
2663/// Sends the specified FileDropEvent using `PlatformInput::FileDrop` to the window
2664/// state and updates the window state according to the event passed.
2665fn send_file_drop_event(
2666 window_state: Arc<Mutex<MacWindowState>>,
2667 file_drop_event: FileDropEvent,
2668) -> bool {
2669 let external_files_dragged = match file_drop_event {
2670 FileDropEvent::Entered { .. } => Some(true),
2671 FileDropEvent::Exited => Some(false),
2672 _ => None,
2673 };
2674
2675 let mut lock = window_state.lock();
2676 if let Some(mut callback) = lock.event_callback.take() {
2677 drop(lock);
2678 callback(PlatformInput::FileDrop(file_drop_event));
2679 let mut lock = window_state.lock();
2680 lock.event_callback = Some(callback);
2681 if let Some(external_files_dragged) = external_files_dragged {
2682 lock.external_files_dragged = external_files_dragged;
2683 }
2684 true
2685 } else {
2686 false
2687 }
2688}
2689
2690fn drag_event_position(window_state: &Mutex<MacWindowState>, dragging_info: id) -> Point<Pixels> {
2691 let drag_location: NSPoint = unsafe { msg_send![dragging_info, draggingLocation] };
2692 convert_mouse_position(drag_location, window_state.lock().content_size().height)
2693}
2694
2695fn with_input_handler<F, R>(window: &Object, f: F) -> Option<R>
2696where
2697 F: FnOnce(&mut PlatformInputHandler) -> R,
2698{
2699 let window_state = unsafe { get_window_state(window) };
2700 let mut lock = window_state.as_ref().lock();
2701 if let Some(mut input_handler) = lock.input_handler.take() {
2702 drop(lock);
2703 let result = f(&mut input_handler);
2704 window_state.lock().input_handler = Some(input_handler);
2705 Some(result)
2706 } else {
2707 None
2708 }
2709}
2710
2711unsafe fn display_id_for_screen(screen: id) -> CGDirectDisplayID {
2712 unsafe {
2713 let device_description = NSScreen::deviceDescription(screen);
2714 let screen_number_key: id = ns_string("NSScreenNumber");
2715 let screen_number = device_description.objectForKey_(screen_number_key);
2716 let screen_number: NSUInteger = msg_send![screen_number, unsignedIntegerValue];
2717 screen_number as CGDirectDisplayID
2718 }
2719}
2720
2721extern "C" fn blurred_view_init_with_frame(this: &Object, _: Sel, frame: NSRect) -> id {
2722 unsafe {
2723 let view = msg_send![super(this, class!(NSVisualEffectView)), initWithFrame: frame];
2724 // Use a colorless semantic material. The default value `AppearanceBased`, though not
2725 // manually set, is deprecated.
2726 NSVisualEffectView::setMaterial_(view, NSVisualEffectMaterial::Selection);
2727 NSVisualEffectView::setState_(view, NSVisualEffectState::Active);
2728 view
2729 }
2730}
2731
2732extern "C" fn blurred_view_update_layer(this: &Object, _: Sel) {
2733 unsafe {
2734 let _: () = msg_send![super(this, class!(NSVisualEffectView)), updateLayer];
2735 let layer: id = msg_send![this, layer];
2736 if !layer.is_null() {
2737 remove_layer_background(layer);
2738 }
2739 }
2740}
2741
2742unsafe fn remove_layer_background(layer: id) {
2743 unsafe {
2744 let _: () = msg_send![layer, setBackgroundColor:nil];
2745
2746 let class_name: id = msg_send![layer, className];
2747 if class_name.isEqualToString("CAChameleonLayer") {
2748 // Remove the desktop tinting effect.
2749 let _: () = msg_send![layer, setHidden: YES];
2750 return;
2751 }
2752
2753 let filters: id = msg_send![layer, filters];
2754 if !filters.is_null() {
2755 // Remove the increased saturation.
2756 // The effect of a `CAFilter` or `CIFilter` is determined by its name, and the
2757 // `description` reflects its name and some parameters. Currently `NSVisualEffectView`
2758 // uses a `CAFilter` named "colorSaturate". If one day they switch to `CIFilter`, the
2759 // `description` will still contain "Saturat" ("... inputSaturation = ...").
2760 let test_string: id = ns_string("Saturat");
2761 let count = NSArray::count(filters);
2762 for i in 0..count {
2763 let description: id = msg_send![filters.objectAtIndex(i), description];
2764 let hit: BOOL = msg_send![description, containsString: test_string];
2765 if hit == NO {
2766 continue;
2767 }
2768
2769 let all_indices = NSRange {
2770 location: 0,
2771 length: count,
2772 };
2773 let indices: id = msg_send![class!(NSMutableIndexSet), indexSet];
2774 let _: () = msg_send![indices, addIndexesInRange: all_indices];
2775 let _: () = msg_send![indices, removeIndex:i];
2776 let filtered: id = msg_send![filters, objectsAtIndexes: indices];
2777 let _: () = msg_send![layer, setFilters: filtered];
2778 break;
2779 }
2780 }
2781
2782 let sublayers: id = msg_send![layer, sublayers];
2783 if !sublayers.is_null() {
2784 let count = NSArray::count(sublayers);
2785 for i in 0..count {
2786 let sublayer = sublayers.objectAtIndex(i);
2787 remove_layer_background(sublayer);
2788 }
2789 }
2790 }
2791}
2792
2793extern "C" fn add_titlebar_accessory_view_controller(this: &Object, _: Sel, view_controller: id) {
2794 unsafe {
2795 let _: () = msg_send![super(this, class!(NSWindow)), addTitlebarAccessoryViewController: view_controller];
2796
2797 // Hide the native tab bar and set its height to 0, since we render our own.
2798 let accessory_view: id = msg_send![view_controller, view];
2799 let _: () = msg_send![accessory_view, setHidden: YES];
2800 let mut frame: NSRect = msg_send![accessory_view, frame];
2801 frame.size.height = 0.0;
2802 let _: () = msg_send![accessory_view, setFrame: frame];
2803 }
2804}
2805
2806extern "C" fn move_tab_to_new_window(this: &Object, _: Sel, _: id) {
2807 unsafe {
2808 let _: () = msg_send![super(this, class!(NSWindow)), moveTabToNewWindow:nil];
2809
2810 let window_state = get_window_state(this);
2811 let mut lock = window_state.as_ref().lock();
2812 if let Some(mut callback) = lock.move_tab_to_new_window_callback.take() {
2813 drop(lock);
2814 callback();
2815 window_state.lock().move_tab_to_new_window_callback = Some(callback);
2816 }
2817 }
2818}
2819
2820extern "C" fn merge_all_windows(this: &Object, _: Sel, _: id) {
2821 unsafe {
2822 let _: () = msg_send![super(this, class!(NSWindow)), mergeAllWindows:nil];
2823
2824 let window_state = get_window_state(this);
2825 let mut lock = window_state.as_ref().lock();
2826 if let Some(mut callback) = lock.merge_all_windows_callback.take() {
2827 drop(lock);
2828 callback();
2829 window_state.lock().merge_all_windows_callback = Some(callback);
2830 }
2831 }
2832}
2833
2834extern "C" fn select_next_tab(this: &Object, _sel: Sel, _id: id) {
2835 let window_state = unsafe { get_window_state(this) };
2836 let mut lock = window_state.as_ref().lock();
2837 if let Some(mut callback) = lock.select_next_tab_callback.take() {
2838 drop(lock);
2839 callback();
2840 window_state.lock().select_next_tab_callback = Some(callback);
2841 }
2842}
2843
2844extern "C" fn select_previous_tab(this: &Object, _sel: Sel, _id: id) {
2845 let window_state = unsafe { get_window_state(this) };
2846 let mut lock = window_state.as_ref().lock();
2847 if let Some(mut callback) = lock.select_previous_tab_callback.take() {
2848 drop(lock);
2849 callback();
2850 window_state.lock().select_previous_tab_callback = Some(callback);
2851 }
2852}
2853
2854extern "C" fn toggle_tab_bar(this: &Object, _sel: Sel, _id: id) {
2855 unsafe {
2856 let _: () = msg_send![super(this, class!(NSWindow)), toggleTabBar:nil];
2857
2858 let window_state = get_window_state(this);
2859 let mut lock = window_state.as_ref().lock();
2860 lock.move_traffic_light();
2861
2862 if let Some(mut callback) = lock.toggle_tab_bar_callback.take() {
2863 drop(lock);
2864 callback();
2865 window_state.lock().toggle_tab_bar_callback = Some(callback);
2866 }
2867 }
2868}