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 // SAFETY: This is a no-op on macOS
1705 unsafe {
1706 Ok(rwh::DisplayHandle::borrow_raw(
1707 rwh::AppKitDisplayHandle::new().into(),
1708 ))
1709 }
1710 }
1711}
1712
1713fn get_scale_factor(native_window: id) -> f32 {
1714 let factor = unsafe {
1715 let screen: id = msg_send![native_window, screen];
1716 if screen.is_null() {
1717 return 2.0;
1718 }
1719 NSScreen::backingScaleFactor(screen) as f32
1720 };
1721
1722 // We are not certain what triggers this, but it seems that sometimes
1723 // this method would return 0 (https://github.com/zed-industries/zed/issues/6412)
1724 // It seems most likely that this would happen if the window has no screen
1725 // (if it is off-screen), though we'd expect to see viewDidChangeBackingProperties before
1726 // it was rendered for real.
1727 // Regardless, attempt to avoid the issue here.
1728 if factor == 0.0 { 2. } else { factor }
1729}
1730
1731unsafe fn get_window_state(object: &Object) -> Arc<Mutex<MacWindowState>> {
1732 unsafe {
1733 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1734 let rc1 = Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1735 let rc2 = rc1.clone();
1736 mem::forget(rc1);
1737 rc2
1738 }
1739}
1740
1741unsafe fn drop_window_state(object: &Object) {
1742 unsafe {
1743 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1744 Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1745 }
1746}
1747
1748extern "C" fn yes(_: &Object, _: Sel) -> BOOL {
1749 YES
1750}
1751
1752extern "C" fn dealloc_window(this: &Object, _: Sel) {
1753 unsafe {
1754 drop_window_state(this);
1755 let _: () = msg_send![super(this, class!(NSWindow)), dealloc];
1756 }
1757}
1758
1759extern "C" fn dealloc_view(this: &Object, _: Sel) {
1760 unsafe {
1761 drop_window_state(this);
1762 let _: () = msg_send![super(this, class!(NSView)), dealloc];
1763 }
1764}
1765
1766extern "C" fn handle_key_equivalent(this: &Object, _: Sel, native_event: id) -> BOOL {
1767 handle_key_event(this, native_event, true)
1768}
1769
1770extern "C" fn handle_key_down(this: &Object, _: Sel, native_event: id) {
1771 handle_key_event(this, native_event, false);
1772}
1773
1774extern "C" fn handle_key_up(this: &Object, _: Sel, native_event: id) {
1775 handle_key_event(this, native_event, false);
1776}
1777
1778// Things to test if you're modifying this method:
1779// U.S. layout:
1780// - The IME consumes characters like 'j' and 'k', which makes paging through `less` in
1781// the terminal behave incorrectly by default. This behavior should be patched by our
1782// IME integration
1783// - `alt-t` should open the tasks menu
1784// - In vim mode, this keybinding should work:
1785// ```
1786// {
1787// "context": "Editor && vim_mode == insert",
1788// "bindings": {"j j": "vim::NormalBefore"}
1789// }
1790// ```
1791// and typing 'j k' in insert mode with this keybinding should insert the two characters
1792// Brazilian layout:
1793// - `" space` should create an unmarked quote
1794// - `" backspace` should delete the marked quote
1795// - `" "`should create an unmarked quote and a second marked quote
1796// - `" up` should insert a quote, unmark it, and move up one line
1797// - `" cmd-down` should insert a quote, unmark it, and move to the end of the file
1798// - `cmd-ctrl-space` and clicking on an emoji should type it
1799// Czech (QWERTY) layout:
1800// - in vim mode `option-4` should go to end of line (same as $)
1801// Japanese (Romaji) layout:
1802// - type `a i left down up enter enter` should create an unmarked text "愛"
1803// - In vim mode with `jj` bound to `vim::NormalBefore` in insert mode, typing 'j i' with
1804// Japanese IME should produce "じ" (ji), not "jい"
1805
1806/// Returns true if the current keyboard input source is a composition-based IME
1807/// (e.g. Japanese Hiragana, Korean, Chinese Pinyin) that produces non-ASCII output.
1808///
1809/// This checks two properties:
1810/// 1. The source type is `kTISTypeKeyboardInputMode` (an IME input mode, not a plain
1811/// keyboard layout). This excludes non-ASCII layouts like Armenian and Ukrainian
1812/// that map keys directly without composition.
1813/// 2. The source is not ASCII-capable, which excludes modes like Japanese Romaji that
1814/// produce ASCII characters and should allow multi-stroke keybindings like `jj`.
1815unsafe fn is_ime_input_source_active() -> bool {
1816 unsafe {
1817 let source = TISCopyCurrentKeyboardInputSource();
1818 if source.is_null() {
1819 return false;
1820 }
1821
1822 let source_type =
1823 TISGetInputSourceProperty(source, kTISPropertyInputSourceType as *const c_void);
1824 let is_input_mode = !source_type.is_null()
1825 && CFEqual(
1826 source_type as CFTypeRef,
1827 kTISTypeKeyboardInputMode as CFTypeRef,
1828 ) != 0;
1829
1830 let is_ascii = TISGetInputSourceProperty(
1831 source,
1832 kTISPropertyInputSourceIsASCIICapable as *const c_void,
1833 );
1834 let is_ascii_capable = !is_ascii.is_null() && CFBooleanGetValue(is_ascii as CFBooleanRef);
1835
1836 CFRelease(source as CFTypeRef);
1837
1838 is_input_mode && !is_ascii_capable
1839 }
1840}
1841
1842extern "C" fn handle_key_event(this: &Object, native_event: id, key_equivalent: bool) -> BOOL {
1843 let window_state = unsafe { get_window_state(this) };
1844 let mut lock = window_state.as_ref().lock();
1845
1846 let window_height = lock.content_size().height;
1847 let event = unsafe { platform_input_from_native(native_event, Some(window_height)) };
1848
1849 let Some(event) = event else {
1850 return NO;
1851 };
1852
1853 let run_callback = |event: PlatformInput| -> BOOL {
1854 let mut callback = window_state.as_ref().lock().event_callback.take();
1855 let handled: BOOL = if let Some(callback) = callback.as_mut() {
1856 !callback(event).propagate as BOOL
1857 } else {
1858 NO
1859 };
1860 window_state.as_ref().lock().event_callback = callback;
1861 handled
1862 };
1863
1864 match event {
1865 PlatformInput::KeyDown(key_down_event) => {
1866 // For certain keystrokes, macOS will first dispatch a "key equivalent" event.
1867 // If that event isn't handled, it will then dispatch a "key down" event. GPUI
1868 // makes no distinction between these two types of events, so we need to ignore
1869 // the "key down" event if we've already just processed its "key equivalent" version.
1870 if key_equivalent {
1871 lock.last_key_equivalent = Some(key_down_event.clone());
1872 } else if lock.last_key_equivalent.take().as_ref() == Some(&key_down_event) {
1873 return NO;
1874 }
1875
1876 drop(lock);
1877
1878 let is_composing =
1879 with_input_handler(this, |input_handler| input_handler.marked_text_range())
1880 .flatten()
1881 .is_some();
1882
1883 // If we're composing, send the key to the input handler first;
1884 // otherwise we only send to the input handler if we don't have a matching binding.
1885 // The input handler may call `do_command_by_selector` if it doesn't know how to handle
1886 // a key. If it does so, it will return YES so we won't send the key twice.
1887 // We also do this for non-printing keys (like arrow keys and escape) as the IME menu
1888 // may need them even if there is no marked text;
1889 // however we skip keys with control or the input handler adds control-characters to the buffer.
1890 // and keys with function, as the input handler swallows them.
1891 // and keys with platform (Cmd), so that Cmd+key events (e.g. Cmd+`) are not
1892 // consumed by the IME on non-QWERTY / dead-key layouts.
1893 // We also send printable keys to the IME first when an IME input source (e.g. Japanese,
1894 // Korean, Chinese) is active and the input handler accepts text input. This prevents
1895 // multi-stroke keybindings like `jj` from intercepting keys that the IME should compose
1896 // (e.g. typing 'ji' should produce 'じ', not 'jい'). If the IME doesn't handle the key,
1897 // it calls `doCommandBySelector:` which routes it back to keybinding matching.
1898 let is_ime_printable_key = !is_composing
1899 && key_down_event
1900 .keystroke
1901 .key_char
1902 .as_ref()
1903 .is_some_and(|key_char| key_char.chars().all(|c| !c.is_control()))
1904 && !key_down_event.keystroke.modifiers.control
1905 && !key_down_event.keystroke.modifiers.function
1906 && !key_down_event.keystroke.modifiers.platform
1907 && unsafe { is_ime_input_source_active() }
1908 && with_input_handler(this, |input_handler| {
1909 input_handler.query_prefers_ime_for_printable_keys()
1910 })
1911 .unwrap_or(false);
1912
1913 if is_composing
1914 || is_ime_printable_key
1915 || (key_down_event.keystroke.key_char.is_none()
1916 && !key_down_event.keystroke.modifiers.control
1917 && !key_down_event.keystroke.modifiers.function
1918 && !key_down_event.keystroke.modifiers.platform)
1919 {
1920 {
1921 let mut lock = window_state.as_ref().lock();
1922 lock.keystroke_for_do_command = Some(key_down_event.keystroke.clone());
1923 lock.do_command_handled.take();
1924 drop(lock);
1925 }
1926
1927 let handled: BOOL = unsafe {
1928 let input_context: id = msg_send![this, inputContext];
1929 msg_send![input_context, handleEvent: native_event]
1930 };
1931 window_state.as_ref().lock().keystroke_for_do_command.take();
1932 if let Some(handled) = window_state.as_ref().lock().do_command_handled.take() {
1933 return handled as BOOL;
1934 } else if handled == YES {
1935 return YES;
1936 }
1937
1938 let handled = run_callback(PlatformInput::KeyDown(key_down_event));
1939 return handled;
1940 }
1941
1942 let handled = run_callback(PlatformInput::KeyDown(key_down_event.clone()));
1943 if handled == YES {
1944 return YES;
1945 }
1946
1947 if key_down_event.is_held
1948 && let Some(key_char) = key_down_event.keystroke.key_char.as_ref()
1949 {
1950 let handled = with_input_handler(this, |input_handler| {
1951 if !input_handler.apple_press_and_hold_enabled() {
1952 input_handler.replace_text_in_range(None, key_char);
1953 return YES;
1954 }
1955 NO
1956 });
1957 if handled == Some(YES) {
1958 return YES;
1959 }
1960 }
1961
1962 // Don't send key equivalents to the input handler if there are key modifiers other
1963 // than Function key, or macOS shortcuts like cmd-` will stop working.
1964 if key_equivalent && key_down_event.keystroke.modifiers != Modifiers::function() {
1965 return NO;
1966 }
1967
1968 unsafe {
1969 let input_context: id = msg_send![this, inputContext];
1970 msg_send![input_context, handleEvent: native_event]
1971 }
1972 }
1973
1974 PlatformInput::KeyUp(_) => {
1975 drop(lock);
1976 run_callback(event)
1977 }
1978
1979 _ => NO,
1980 }
1981}
1982
1983extern "C" fn handle_view_event(this: &Object, _: Sel, native_event: id) {
1984 let window_state = unsafe { get_window_state(this) };
1985 let weak_window_state = Arc::downgrade(&window_state);
1986 let mut lock = window_state.as_ref().lock();
1987 let window_height = lock.content_size().height;
1988 let event = unsafe { platform_input_from_native(native_event, Some(window_height)) };
1989
1990 if let Some(mut event) = event {
1991 match &mut event {
1992 PlatformInput::MouseDown(
1993 event @ MouseDownEvent {
1994 button: MouseButton::Left,
1995 modifiers: Modifiers { control: true, .. },
1996 ..
1997 },
1998 ) => {
1999 // On mac, a ctrl-left click should be handled as a right click.
2000 *event = MouseDownEvent {
2001 button: MouseButton::Right,
2002 modifiers: Modifiers {
2003 control: false,
2004 ..event.modifiers
2005 },
2006 click_count: 1,
2007 ..*event
2008 };
2009 }
2010
2011 // Handles focusing click.
2012 PlatformInput::MouseDown(
2013 event @ MouseDownEvent {
2014 button: MouseButton::Left,
2015 ..
2016 },
2017 ) if (lock.first_mouse) => {
2018 *event = MouseDownEvent {
2019 first_mouse: true,
2020 ..*event
2021 };
2022 lock.first_mouse = false;
2023 }
2024
2025 // Because we map a ctrl-left_down to a right_down -> right_up let's ignore
2026 // the ctrl-left_up to avoid having a mismatch in button down/up events if the
2027 // user is still holding ctrl when releasing the left mouse button
2028 PlatformInput::MouseUp(
2029 event @ MouseUpEvent {
2030 button: MouseButton::Left,
2031 modifiers: Modifiers { control: true, .. },
2032 ..
2033 },
2034 ) => {
2035 *event = MouseUpEvent {
2036 button: MouseButton::Right,
2037 modifiers: Modifiers {
2038 control: false,
2039 ..event.modifiers
2040 },
2041 click_count: 1,
2042 ..*event
2043 };
2044 }
2045
2046 _ => {}
2047 };
2048
2049 match &event {
2050 PlatformInput::MouseDown(_) => {
2051 drop(lock);
2052 unsafe {
2053 let input_context: id = msg_send![this, inputContext];
2054 msg_send![input_context, handleEvent: native_event]
2055 }
2056 lock = window_state.as_ref().lock();
2057 }
2058 PlatformInput::MouseMove(
2059 event @ MouseMoveEvent {
2060 pressed_button: Some(_),
2061 ..
2062 },
2063 ) => {
2064 // Synthetic drag is used for selecting long buffer contents while buffer is being scrolled.
2065 // External file drag and drop is able to emit its own synthetic mouse events which will conflict
2066 // with these ones.
2067 if !lock.external_files_dragged {
2068 lock.synthetic_drag_counter += 1;
2069 let executor = lock.foreground_executor.clone();
2070 executor
2071 .spawn(synthetic_drag(
2072 weak_window_state,
2073 lock.synthetic_drag_counter,
2074 event.clone(),
2075 lock.background_executor.clone(),
2076 ))
2077 .detach();
2078 }
2079 }
2080
2081 PlatformInput::MouseUp(MouseUpEvent { .. }) => {
2082 lock.synthetic_drag_counter += 1;
2083 }
2084
2085 PlatformInput::ModifiersChanged(ModifiersChangedEvent {
2086 modifiers,
2087 capslock,
2088 }) => {
2089 // Only raise modifiers changed event when they have actually changed
2090 if let Some(PlatformInput::ModifiersChanged(ModifiersChangedEvent {
2091 modifiers: prev_modifiers,
2092 capslock: prev_capslock,
2093 })) = &lock.previous_modifiers_changed_event
2094 && prev_modifiers == modifiers
2095 && prev_capslock == capslock
2096 {
2097 return;
2098 }
2099
2100 lock.previous_modifiers_changed_event = Some(event.clone());
2101 }
2102
2103 _ => {}
2104 }
2105
2106 if let Some(mut callback) = lock.event_callback.take() {
2107 drop(lock);
2108 callback(event);
2109 window_state.lock().event_callback = Some(callback);
2110 }
2111 }
2112}
2113
2114extern "C" fn window_did_change_occlusion_state(this: &Object, _: Sel, _: id) {
2115 let window_state = unsafe { get_window_state(this) };
2116 let lock = &mut *window_state.lock();
2117 unsafe {
2118 if lock
2119 .native_window
2120 .occlusionState()
2121 .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible)
2122 {
2123 lock.move_traffic_light();
2124 lock.start_display_link();
2125 } else {
2126 lock.stop_display_link();
2127 }
2128 }
2129}
2130
2131extern "C" fn window_did_resize(this: &Object, _: Sel, _: id) {
2132 let window_state = unsafe { get_window_state(this) };
2133 window_state.as_ref().lock().move_traffic_light();
2134}
2135
2136extern "C" fn window_will_enter_fullscreen(this: &Object, _: Sel, _: id) {
2137 let window_state = unsafe { get_window_state(this) };
2138 let mut lock = window_state.as_ref().lock();
2139 lock.fullscreen_restore_bounds = lock.bounds();
2140
2141 let min_version = NSOperatingSystemVersion::new(15, 3, 0);
2142
2143 if is_macos_version_at_least(min_version) {
2144 unsafe {
2145 lock.native_window.setTitlebarAppearsTransparent_(NO);
2146 }
2147 }
2148}
2149
2150extern "C" fn window_will_exit_fullscreen(this: &Object, _: Sel, _: id) {
2151 let window_state = unsafe { get_window_state(this) };
2152 let lock = window_state.as_ref().lock();
2153
2154 let min_version = NSOperatingSystemVersion::new(15, 3, 0);
2155
2156 if is_macos_version_at_least(min_version) && lock.transparent_titlebar {
2157 unsafe {
2158 lock.native_window.setTitlebarAppearsTransparent_(YES);
2159 }
2160 }
2161}
2162
2163pub(crate) fn is_macos_version_at_least(version: NSOperatingSystemVersion) -> bool {
2164 unsafe { NSProcessInfo::processInfo(nil).isOperatingSystemAtLeastVersion(version) }
2165}
2166
2167extern "C" fn window_did_move(this: &Object, _: Sel, _: id) {
2168 let window_state = unsafe { get_window_state(this) };
2169 let mut lock = window_state.as_ref().lock();
2170 if let Some(mut callback) = lock.moved_callback.take() {
2171 drop(lock);
2172 callback();
2173 window_state.lock().moved_callback = Some(callback);
2174 }
2175}
2176
2177// Update the window scale factor and drawable size, and call the resize callback if any.
2178fn update_window_scale_factor(window_state: &Arc<Mutex<MacWindowState>>) {
2179 let mut lock = window_state.as_ref().lock();
2180 let scale_factor = lock.scale_factor();
2181 let size = lock.content_size();
2182 let drawable_size = size.to_device_pixels(scale_factor);
2183 if let Some(layer) = lock.renderer.layer() {
2184 unsafe {
2185 let _: () = msg_send![
2186 layer,
2187 setContentsScale: scale_factor as f64
2188 ];
2189 }
2190 }
2191
2192 lock.renderer.update_drawable_size(drawable_size);
2193
2194 if let Some(mut callback) = lock.resize_callback.take() {
2195 let content_size = lock.content_size();
2196 let scale_factor = lock.scale_factor();
2197 drop(lock);
2198 callback(content_size, scale_factor);
2199 window_state.as_ref().lock().resize_callback = Some(callback);
2200 };
2201}
2202
2203extern "C" fn window_did_change_screen(this: &Object, _: Sel, _: id) {
2204 let window_state = unsafe { get_window_state(this) };
2205 let mut lock = window_state.as_ref().lock();
2206 lock.start_display_link();
2207 drop(lock);
2208 update_window_scale_factor(&window_state);
2209}
2210
2211extern "C" fn window_did_change_key_status(this: &Object, selector: Sel, _: id) {
2212 let window_state = unsafe { get_window_state(this) };
2213 let lock = window_state.lock();
2214 let is_active = unsafe { lock.native_window.isKeyWindow() == YES };
2215
2216 // When opening a pop-up while the application isn't active, Cocoa sends a spurious
2217 // `windowDidBecomeKey` message to the previous key window even though that window
2218 // isn't actually key. This causes a bug if the application is later activated while
2219 // the pop-up is still open, making it impossible to activate the previous key window
2220 // even if the pop-up gets closed. The only way to activate it again is to de-activate
2221 // the app and re-activate it, which is a pretty bad UX.
2222 // The following code detects the spurious event and invokes `resignKeyWindow`:
2223 // in theory, we're not supposed to invoke this method manually but it balances out
2224 // the spurious `becomeKeyWindow` event and helps us work around that bug.
2225 if selector == sel!(windowDidBecomeKey:) && !is_active {
2226 let native_window = lock.native_window;
2227 drop(lock);
2228 unsafe {
2229 let _: () = msg_send![native_window, resignKeyWindow];
2230 }
2231 return;
2232 }
2233
2234 let executor = lock.foreground_executor.clone();
2235 drop(lock);
2236
2237 // When a window becomes active, trigger an immediate synchronous frame request to prevent
2238 // tab flicker when switching between windows in native tabs mode.
2239 //
2240 // This is only done on subsequent activations (not the first) to ensure the initial focus
2241 // path is properly established. Without this guard, the focus state would remain unset until
2242 // the first mouse click, causing keybindings to be non-functional.
2243 if selector == sel!(windowDidBecomeKey:) && is_active {
2244 let window_state = unsafe { get_window_state(this) };
2245 let mut lock = window_state.lock();
2246
2247 if lock.activated_least_once {
2248 if let Some(mut callback) = lock.request_frame_callback.take() {
2249 lock.renderer.set_presents_with_transaction(true);
2250 lock.stop_display_link();
2251 drop(lock);
2252 callback(Default::default());
2253
2254 let mut lock = window_state.lock();
2255 lock.request_frame_callback = Some(callback);
2256 lock.renderer.set_presents_with_transaction(false);
2257 lock.start_display_link();
2258 }
2259 } else {
2260 lock.activated_least_once = true;
2261 }
2262 }
2263
2264 executor
2265 .spawn(async move {
2266 let mut lock = window_state.as_ref().lock();
2267 if is_active {
2268 lock.move_traffic_light();
2269 }
2270
2271 if let Some(mut callback) = lock.activate_callback.take() {
2272 drop(lock);
2273 callback(is_active);
2274 window_state.lock().activate_callback = Some(callback);
2275 };
2276 })
2277 .detach();
2278}
2279
2280extern "C" fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL {
2281 let window_state = unsafe { get_window_state(this) };
2282 let mut lock = window_state.as_ref().lock();
2283 if let Some(mut callback) = lock.should_close_callback.take() {
2284 drop(lock);
2285 let should_close = callback();
2286 window_state.lock().should_close_callback = Some(callback);
2287 should_close as BOOL
2288 } else {
2289 YES
2290 }
2291}
2292
2293extern "C" fn close_window(this: &Object, _: Sel) {
2294 unsafe {
2295 let close_callback = {
2296 let window_state = get_window_state(this);
2297 let mut lock = window_state.as_ref().lock();
2298 lock.closed.store(true, Ordering::Release);
2299 lock.close_callback.take()
2300 };
2301
2302 if let Some(callback) = close_callback {
2303 callback();
2304 }
2305
2306 let _: () = msg_send![super(this, class!(NSWindow)), close];
2307 }
2308}
2309
2310extern "C" fn make_backing_layer(this: &Object, _: Sel) -> id {
2311 let window_state = unsafe { get_window_state(this) };
2312 let window_state = window_state.as_ref().lock();
2313 window_state.renderer.layer_ptr() as id
2314}
2315
2316extern "C" fn view_did_change_backing_properties(this: &Object, _: Sel) {
2317 let window_state = unsafe { get_window_state(this) };
2318 update_window_scale_factor(&window_state);
2319}
2320
2321extern "C" fn set_frame_size(this: &Object, _: Sel, size: NSSize) {
2322 fn convert(value: NSSize) -> Size<Pixels> {
2323 Size {
2324 width: px(value.width as f32),
2325 height: px(value.height as f32),
2326 }
2327 }
2328
2329 let window_state = unsafe { get_window_state(this) };
2330 let mut lock = window_state.as_ref().lock();
2331
2332 let new_size = convert(size);
2333 let old_size = unsafe {
2334 let old_frame: NSRect = msg_send![this, frame];
2335 convert(old_frame.size)
2336 };
2337
2338 if old_size == new_size {
2339 return;
2340 }
2341
2342 unsafe {
2343 let _: () = msg_send![super(this, class!(NSView)), setFrameSize: size];
2344 }
2345
2346 let scale_factor = lock.scale_factor();
2347 let drawable_size = new_size.to_device_pixels(scale_factor);
2348 lock.renderer.update_drawable_size(drawable_size);
2349
2350 if let Some(mut callback) = lock.resize_callback.take() {
2351 let content_size = lock.content_size();
2352 let scale_factor = lock.scale_factor();
2353 drop(lock);
2354 callback(content_size, scale_factor);
2355 window_state.lock().resize_callback = Some(callback);
2356 };
2357}
2358
2359extern "C" fn display_layer(this: &Object, _: Sel, _: id) {
2360 let window_state = unsafe { get_window_state(this) };
2361 let mut lock = window_state.lock();
2362 if let Some(mut callback) = lock.request_frame_callback.take() {
2363 lock.renderer.set_presents_with_transaction(true);
2364 lock.stop_display_link();
2365 drop(lock);
2366 callback(Default::default());
2367
2368 let mut lock = window_state.lock();
2369 lock.request_frame_callback = Some(callback);
2370 lock.renderer.set_presents_with_transaction(false);
2371 lock.start_display_link();
2372 }
2373}
2374
2375extern "C" fn step(view: *mut c_void) {
2376 let view = view as id;
2377 let window_state = unsafe { get_window_state(&*view) };
2378 let mut lock = window_state.lock();
2379
2380 if let Some(mut callback) = lock.request_frame_callback.take() {
2381 drop(lock);
2382 callback(Default::default());
2383 window_state.lock().request_frame_callback = Some(callback);
2384 }
2385}
2386
2387extern "C" fn valid_attributes_for_marked_text(_: &Object, _: Sel) -> id {
2388 unsafe { msg_send![class!(NSArray), array] }
2389}
2390
2391extern "C" fn has_marked_text(this: &Object, _: Sel) -> BOOL {
2392 let has_marked_text_result =
2393 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
2394
2395 has_marked_text_result.is_some() as BOOL
2396}
2397
2398extern "C" fn marked_range(this: &Object, _: Sel) -> NSRange {
2399 let marked_range_result =
2400 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
2401
2402 marked_range_result.map_or(NSRange::invalid(), |range| range.into())
2403}
2404
2405extern "C" fn selected_range(this: &Object, _: Sel) -> NSRange {
2406 let selected_range_result = with_input_handler(this, |input_handler| {
2407 input_handler.selected_text_range(false)
2408 })
2409 .flatten();
2410
2411 selected_range_result.map_or(NSRange::invalid(), |selection| selection.range.into())
2412}
2413
2414extern "C" fn first_rect_for_character_range(
2415 this: &Object,
2416 _: Sel,
2417 range: NSRange,
2418 _: id,
2419) -> NSRect {
2420 let frame = get_frame(this);
2421 with_input_handler(this, |input_handler| {
2422 input_handler.bounds_for_range(range.to_range()?)
2423 })
2424 .flatten()
2425 .map_or(
2426 NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.)),
2427 |bounds| {
2428 NSRect::new(
2429 NSPoint::new(
2430 frame.origin.x + bounds.origin.x.as_f32() as f64,
2431 frame.origin.y + frame.size.height
2432 - bounds.origin.y.as_f32() as f64
2433 - bounds.size.height.as_f32() as f64,
2434 ),
2435 NSSize::new(
2436 bounds.size.width.as_f32() as f64,
2437 bounds.size.height.as_f32() as f64,
2438 ),
2439 )
2440 },
2441 )
2442}
2443
2444fn get_frame(this: &Object) -> NSRect {
2445 unsafe {
2446 let state = get_window_state(this);
2447 let lock = state.lock();
2448 let mut frame = NSWindow::frame(lock.native_window);
2449 let content_layout_rect: CGRect = msg_send![lock.native_window, contentLayoutRect];
2450 let style_mask: NSWindowStyleMask = msg_send![lock.native_window, styleMask];
2451 if !style_mask.contains(NSWindowStyleMask::NSFullSizeContentViewWindowMask) {
2452 frame.origin.y -= frame.size.height - content_layout_rect.size.height;
2453 }
2454 frame
2455 }
2456}
2457
2458extern "C" fn insert_text(this: &Object, _: Sel, text: id, replacement_range: NSRange) {
2459 unsafe {
2460 let is_attributed_string: BOOL =
2461 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
2462 let text: id = if is_attributed_string == YES {
2463 msg_send![text, string]
2464 } else {
2465 text
2466 };
2467
2468 let text = text.to_str();
2469 let replacement_range = replacement_range.to_range();
2470 with_input_handler(this, |input_handler| {
2471 input_handler.replace_text_in_range(replacement_range, text)
2472 });
2473 }
2474}
2475
2476extern "C" fn set_marked_text(
2477 this: &Object,
2478 _: Sel,
2479 text: id,
2480 selected_range: NSRange,
2481 replacement_range: NSRange,
2482) {
2483 unsafe {
2484 let is_attributed_string: BOOL =
2485 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
2486 let text: id = if is_attributed_string == YES {
2487 msg_send![text, string]
2488 } else {
2489 text
2490 };
2491 let selected_range = selected_range.to_range();
2492 let replacement_range = replacement_range.to_range();
2493 let text = text.to_str();
2494 with_input_handler(this, |input_handler| {
2495 input_handler.replace_and_mark_text_in_range(replacement_range, text, selected_range)
2496 });
2497 }
2498}
2499extern "C" fn unmark_text(this: &Object, _: Sel) {
2500 with_input_handler(this, |input_handler| input_handler.unmark_text());
2501}
2502
2503extern "C" fn attributed_substring_for_proposed_range(
2504 this: &Object,
2505 _: Sel,
2506 range: NSRange,
2507 actual_range: *mut c_void,
2508) -> id {
2509 with_input_handler(this, |input_handler| {
2510 let range = range.to_range()?;
2511 if range.is_empty() {
2512 return None;
2513 }
2514 let mut adjusted: Option<Range<usize>> = None;
2515
2516 let selected_text = input_handler.text_for_range(range.clone(), &mut adjusted)?;
2517 if let Some(adjusted) = adjusted
2518 && adjusted != range
2519 {
2520 unsafe { (actual_range as *mut NSRange).write(NSRange::from(adjusted)) };
2521 }
2522 unsafe {
2523 let string: id = msg_send![class!(NSAttributedString), alloc];
2524 let string: id = msg_send![string, initWithString: ns_string(&selected_text)];
2525 Some(string)
2526 }
2527 })
2528 .flatten()
2529 .unwrap_or(nil)
2530}
2531
2532// We ignore which selector it asks us to do because the user may have
2533// bound the shortcut to something else.
2534extern "C" fn do_command_by_selector(this: &Object, _: Sel, _: Sel) {
2535 let state = unsafe { get_window_state(this) };
2536 let mut lock = state.as_ref().lock();
2537 let keystroke = lock.keystroke_for_do_command.take();
2538 let mut event_callback = lock.event_callback.take();
2539 drop(lock);
2540
2541 if let Some((keystroke, callback)) = keystroke.zip(event_callback.as_mut()) {
2542 let handled = (callback)(PlatformInput::KeyDown(KeyDownEvent {
2543 keystroke,
2544 is_held: false,
2545 prefer_character_input: false,
2546 }));
2547 state.as_ref().lock().do_command_handled = Some(!handled.propagate);
2548 }
2549
2550 state.as_ref().lock().event_callback = event_callback;
2551}
2552
2553extern "C" fn view_did_change_effective_appearance(this: &Object, _: Sel) {
2554 unsafe {
2555 let state = get_window_state(this);
2556 let mut lock = state.as_ref().lock();
2557 if let Some(mut callback) = lock.appearance_changed_callback.take() {
2558 drop(lock);
2559 callback();
2560 state.lock().appearance_changed_callback = Some(callback);
2561 }
2562 }
2563}
2564
2565extern "C" fn accepts_first_mouse(this: &Object, _: Sel, _: id) -> BOOL {
2566 let window_state = unsafe { get_window_state(this) };
2567 let mut lock = window_state.as_ref().lock();
2568 lock.first_mouse = true;
2569 YES
2570}
2571
2572extern "C" fn character_index_for_point(this: &Object, _: Sel, position: NSPoint) -> u64 {
2573 let position = screen_point_to_gpui_point(this, position);
2574 with_input_handler(this, |input_handler| {
2575 input_handler.character_index_for_point(position)
2576 })
2577 .flatten()
2578 .map(|index| index as u64)
2579 .unwrap_or(NSNotFound as u64)
2580}
2581
2582fn screen_point_to_gpui_point(this: &Object, position: NSPoint) -> Point<Pixels> {
2583 let frame = get_frame(this);
2584 let window_x = position.x - frame.origin.x;
2585 let window_y = frame.size.height - (position.y - frame.origin.y);
2586
2587 point(px(window_x as f32), px(window_y as f32))
2588}
2589
2590extern "C" fn dragging_entered(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
2591 let window_state = unsafe { get_window_state(this) };
2592 let position = drag_event_position(&window_state, dragging_info);
2593 let paths = external_paths_from_event(dragging_info);
2594 if let Some(event) = paths.map(|paths| FileDropEvent::Entered { position, paths })
2595 && send_file_drop_event(window_state, event)
2596 {
2597 return NSDragOperationCopy;
2598 }
2599 NSDragOperationNone
2600}
2601
2602extern "C" fn dragging_updated(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
2603 let window_state = unsafe { get_window_state(this) };
2604 let position = drag_event_position(&window_state, dragging_info);
2605 if send_file_drop_event(window_state, FileDropEvent::Pending { position }) {
2606 NSDragOperationCopy
2607 } else {
2608 NSDragOperationNone
2609 }
2610}
2611
2612extern "C" fn dragging_exited(this: &Object, _: Sel, _: id) {
2613 let window_state = unsafe { get_window_state(this) };
2614 send_file_drop_event(window_state, FileDropEvent::Exited);
2615}
2616
2617extern "C" fn perform_drag_operation(this: &Object, _: Sel, dragging_info: id) -> BOOL {
2618 let window_state = unsafe { get_window_state(this) };
2619 let position = drag_event_position(&window_state, dragging_info);
2620 send_file_drop_event(window_state, FileDropEvent::Submit { position }).to_objc()
2621}
2622
2623fn external_paths_from_event(dragging_info: *mut Object) -> Option<ExternalPaths> {
2624 let mut paths = SmallVec::new();
2625 let pasteboard: id = unsafe { msg_send![dragging_info, draggingPasteboard] };
2626 let filenames = unsafe { NSPasteboard::propertyListForType(pasteboard, NSFilenamesPboardType) };
2627 if filenames == nil {
2628 return None;
2629 }
2630 for file in unsafe { filenames.iter() } {
2631 let path = unsafe {
2632 let f = NSString::UTF8String(file);
2633 CStr::from_ptr(f).to_string_lossy().into_owned()
2634 };
2635 paths.push(PathBuf::from(path))
2636 }
2637 Some(ExternalPaths(paths))
2638}
2639
2640extern "C" fn conclude_drag_operation(this: &Object, _: Sel, _: id) {
2641 let window_state = unsafe { get_window_state(this) };
2642 send_file_drop_event(window_state, FileDropEvent::Exited);
2643}
2644
2645async fn synthetic_drag(
2646 window_state: Weak<Mutex<MacWindowState>>,
2647 drag_id: usize,
2648 event: MouseMoveEvent,
2649 executor: BackgroundExecutor,
2650) {
2651 loop {
2652 executor.timer(Duration::from_millis(16)).await;
2653 if let Some(window_state) = window_state.upgrade() {
2654 let mut lock = window_state.lock();
2655 if lock.synthetic_drag_counter == drag_id {
2656 if let Some(mut callback) = lock.event_callback.take() {
2657 drop(lock);
2658 callback(PlatformInput::MouseMove(event.clone()));
2659 window_state.lock().event_callback = Some(callback);
2660 }
2661 } else {
2662 break;
2663 }
2664 }
2665 }
2666}
2667
2668/// Sends the specified FileDropEvent using `PlatformInput::FileDrop` to the window
2669/// state and updates the window state according to the event passed.
2670fn send_file_drop_event(
2671 window_state: Arc<Mutex<MacWindowState>>,
2672 file_drop_event: FileDropEvent,
2673) -> bool {
2674 let external_files_dragged = match file_drop_event {
2675 FileDropEvent::Entered { .. } => Some(true),
2676 FileDropEvent::Exited => Some(false),
2677 _ => None,
2678 };
2679
2680 let mut lock = window_state.lock();
2681 if let Some(mut callback) = lock.event_callback.take() {
2682 drop(lock);
2683 callback(PlatformInput::FileDrop(file_drop_event));
2684 let mut lock = window_state.lock();
2685 lock.event_callback = Some(callback);
2686 if let Some(external_files_dragged) = external_files_dragged {
2687 lock.external_files_dragged = external_files_dragged;
2688 }
2689 true
2690 } else {
2691 false
2692 }
2693}
2694
2695fn drag_event_position(window_state: &Mutex<MacWindowState>, dragging_info: id) -> Point<Pixels> {
2696 let drag_location: NSPoint = unsafe { msg_send![dragging_info, draggingLocation] };
2697 convert_mouse_position(drag_location, window_state.lock().content_size().height)
2698}
2699
2700fn with_input_handler<F, R>(window: &Object, f: F) -> Option<R>
2701where
2702 F: FnOnce(&mut PlatformInputHandler) -> R,
2703{
2704 let window_state = unsafe { get_window_state(window) };
2705 let mut lock = window_state.as_ref().lock();
2706 if let Some(mut input_handler) = lock.input_handler.take() {
2707 drop(lock);
2708 let result = f(&mut input_handler);
2709 window_state.lock().input_handler = Some(input_handler);
2710 Some(result)
2711 } else {
2712 None
2713 }
2714}
2715
2716unsafe fn display_id_for_screen(screen: id) -> CGDirectDisplayID {
2717 unsafe {
2718 let device_description = NSScreen::deviceDescription(screen);
2719 let screen_number_key: id = ns_string("NSScreenNumber");
2720 let screen_number = device_description.objectForKey_(screen_number_key);
2721 let screen_number: NSUInteger = msg_send![screen_number, unsignedIntegerValue];
2722 screen_number as CGDirectDisplayID
2723 }
2724}
2725
2726extern "C" fn blurred_view_init_with_frame(this: &Object, _: Sel, frame: NSRect) -> id {
2727 unsafe {
2728 let view = msg_send![super(this, class!(NSVisualEffectView)), initWithFrame: frame];
2729 // Use a colorless semantic material. The default value `AppearanceBased`, though not
2730 // manually set, is deprecated.
2731 NSVisualEffectView::setMaterial_(view, NSVisualEffectMaterial::Selection);
2732 NSVisualEffectView::setState_(view, NSVisualEffectState::Active);
2733 view
2734 }
2735}
2736
2737extern "C" fn blurred_view_update_layer(this: &Object, _: Sel) {
2738 unsafe {
2739 let _: () = msg_send![super(this, class!(NSVisualEffectView)), updateLayer];
2740 let layer: id = msg_send![this, layer];
2741 if !layer.is_null() {
2742 remove_layer_background(layer);
2743 }
2744 }
2745}
2746
2747unsafe fn remove_layer_background(layer: id) {
2748 unsafe {
2749 let _: () = msg_send![layer, setBackgroundColor:nil];
2750
2751 let class_name: id = msg_send![layer, className];
2752 if class_name.isEqualToString("CAChameleonLayer") {
2753 // Remove the desktop tinting effect.
2754 let _: () = msg_send![layer, setHidden: YES];
2755 return;
2756 }
2757
2758 let filters: id = msg_send![layer, filters];
2759 if !filters.is_null() {
2760 // Remove the increased saturation.
2761 // The effect of a `CAFilter` or `CIFilter` is determined by its name, and the
2762 // `description` reflects its name and some parameters. Currently `NSVisualEffectView`
2763 // uses a `CAFilter` named "colorSaturate". If one day they switch to `CIFilter`, the
2764 // `description` will still contain "Saturat" ("... inputSaturation = ...").
2765 let test_string: id = ns_string("Saturat");
2766 let count = NSArray::count(filters);
2767 for i in 0..count {
2768 let description: id = msg_send![filters.objectAtIndex(i), description];
2769 let hit: BOOL = msg_send![description, containsString: test_string];
2770 if hit == NO {
2771 continue;
2772 }
2773
2774 let all_indices = NSRange {
2775 location: 0,
2776 length: count,
2777 };
2778 let indices: id = msg_send![class!(NSMutableIndexSet), indexSet];
2779 let _: () = msg_send![indices, addIndexesInRange: all_indices];
2780 let _: () = msg_send![indices, removeIndex:i];
2781 let filtered: id = msg_send![filters, objectsAtIndexes: indices];
2782 let _: () = msg_send![layer, setFilters: filtered];
2783 break;
2784 }
2785 }
2786
2787 let sublayers: id = msg_send![layer, sublayers];
2788 if !sublayers.is_null() {
2789 let count = NSArray::count(sublayers);
2790 for i in 0..count {
2791 let sublayer = sublayers.objectAtIndex(i);
2792 remove_layer_background(sublayer);
2793 }
2794 }
2795 }
2796}
2797
2798extern "C" fn add_titlebar_accessory_view_controller(this: &Object, _: Sel, view_controller: id) {
2799 unsafe {
2800 let _: () = msg_send![super(this, class!(NSWindow)), addTitlebarAccessoryViewController: view_controller];
2801
2802 // Hide the native tab bar and set its height to 0, since we render our own.
2803 let accessory_view: id = msg_send![view_controller, view];
2804 let _: () = msg_send![accessory_view, setHidden: YES];
2805 let mut frame: NSRect = msg_send![accessory_view, frame];
2806 frame.size.height = 0.0;
2807 let _: () = msg_send![accessory_view, setFrame: frame];
2808 }
2809}
2810
2811extern "C" fn move_tab_to_new_window(this: &Object, _: Sel, _: id) {
2812 unsafe {
2813 let _: () = msg_send![super(this, class!(NSWindow)), moveTabToNewWindow:nil];
2814
2815 let window_state = get_window_state(this);
2816 let mut lock = window_state.as_ref().lock();
2817 if let Some(mut callback) = lock.move_tab_to_new_window_callback.take() {
2818 drop(lock);
2819 callback();
2820 window_state.lock().move_tab_to_new_window_callback = Some(callback);
2821 }
2822 }
2823}
2824
2825extern "C" fn merge_all_windows(this: &Object, _: Sel, _: id) {
2826 unsafe {
2827 let _: () = msg_send![super(this, class!(NSWindow)), mergeAllWindows:nil];
2828
2829 let window_state = get_window_state(this);
2830 let mut lock = window_state.as_ref().lock();
2831 if let Some(mut callback) = lock.merge_all_windows_callback.take() {
2832 drop(lock);
2833 callback();
2834 window_state.lock().merge_all_windows_callback = Some(callback);
2835 }
2836 }
2837}
2838
2839extern "C" fn select_next_tab(this: &Object, _sel: Sel, _id: id) {
2840 let window_state = unsafe { get_window_state(this) };
2841 let mut lock = window_state.as_ref().lock();
2842 if let Some(mut callback) = lock.select_next_tab_callback.take() {
2843 drop(lock);
2844 callback();
2845 window_state.lock().select_next_tab_callback = Some(callback);
2846 }
2847}
2848
2849extern "C" fn select_previous_tab(this: &Object, _sel: Sel, _id: id) {
2850 let window_state = unsafe { get_window_state(this) };
2851 let mut lock = window_state.as_ref().lock();
2852 if let Some(mut callback) = lock.select_previous_tab_callback.take() {
2853 drop(lock);
2854 callback();
2855 window_state.lock().select_previous_tab_callback = Some(callback);
2856 }
2857}
2858
2859extern "C" fn toggle_tab_bar(this: &Object, _sel: Sel, _id: id) {
2860 unsafe {
2861 let _: () = msg_send![super(this, class!(NSWindow)), toggleTabBar:nil];
2862
2863 let window_state = get_window_state(this);
2864 let mut lock = window_state.as_ref().lock();
2865 lock.move_traffic_light();
2866
2867 if let Some(mut callback) = lock.toggle_tab_bar_callback.take() {
2868 drop(lock);
2869 callback();
2870 window_state.lock().toggle_tab_bar_callback = Some(callback);
2871 }
2872 }
2873}