1use super::{MacDisplay, NSRange, NSStringExt, ns_string, renderer};
2use crate::{
3 AnyWindowHandle, Bounds, DisplayLink, ExternalPaths, FileDropEvent, ForegroundExecutor,
4 KeyDownEvent, Keystroke, Modifiers, ModifiersChangedEvent, MouseButton, MouseDownEvent,
5 MouseMoveEvent, MouseUpEvent, Pixels, PlatformAtlas, PlatformDisplay, PlatformInput,
6 PlatformWindow, Point, PromptLevel, RequestFrameOptions, ScaledPixels, Size, Timer,
7 WindowAppearance, WindowBackgroundAppearance, WindowBounds, WindowKind, WindowParams,
8 platform::PlatformInputHandler, point, px, size,
9};
10use block::ConcreteBlock;
11use cocoa::{
12 appkit::{
13 NSApplication, NSBackingStoreBuffered, NSColor, NSEvent, NSEventModifierFlags,
14 NSFilenamesPboardType, NSPasteboard, NSScreen, NSView, NSViewHeightSizable,
15 NSViewWidthSizable, NSWindow, NSWindowButton, NSWindowCollectionBehavior,
16 NSWindowOcclusionState, NSWindowStyleMask, NSWindowTitleVisibility,
17 },
18 base::{id, nil},
19 foundation::{
20 NSArray, NSAutoreleasePool, NSDictionary, NSFastEnumeration, NSInteger, NSNotFound,
21 NSOperatingSystemVersion, NSPoint, NSProcessInfo, NSRect, NSSize, NSString, NSUInteger,
22 },
23};
24use core_graphics::display::{CGDirectDisplayID, CGPoint, CGRect};
25use ctor::ctor;
26use futures::channel::oneshot;
27use objc::{
28 class,
29 declare::ClassDecl,
30 msg_send,
31 runtime::{BOOL, Class, NO, Object, Protocol, Sel, YES},
32 sel, sel_impl,
33};
34use parking_lot::Mutex;
35use raw_window_handle as rwh;
36use smallvec::SmallVec;
37use std::{
38 cell::Cell,
39 ffi::{CStr, c_void},
40 mem,
41 ops::Range,
42 path::PathBuf,
43 ptr::{self, NonNull},
44 rc::Rc,
45 sync::{Arc, Weak},
46 time::Duration,
47};
48use util::ResultExt;
49
50const WINDOW_STATE_IVAR: &str = "windowState";
51
52static mut WINDOW_CLASS: *const Class = ptr::null();
53static mut PANEL_CLASS: *const Class = ptr::null();
54static mut VIEW_CLASS: *const Class = ptr::null();
55
56#[allow(non_upper_case_globals)]
57const NSWindowStyleMaskNonactivatingPanel: NSWindowStyleMask =
58 NSWindowStyleMask::from_bits_retain(1 << 7);
59#[allow(non_upper_case_globals)]
60const NSNormalWindowLevel: NSInteger = 0;
61#[allow(non_upper_case_globals)]
62const NSPopUpWindowLevel: NSInteger = 101;
63#[allow(non_upper_case_globals)]
64const NSTrackingMouseEnteredAndExited: NSUInteger = 0x01;
65#[allow(non_upper_case_globals)]
66const NSTrackingMouseMoved: NSUInteger = 0x02;
67#[allow(non_upper_case_globals)]
68const NSTrackingActiveAlways: NSUInteger = 0x80;
69#[allow(non_upper_case_globals)]
70const NSTrackingInVisibleRect: NSUInteger = 0x200;
71#[allow(non_upper_case_globals)]
72const NSWindowAnimationBehaviorUtilityWindow: NSInteger = 4;
73#[allow(non_upper_case_globals)]
74const NSViewLayerContentsRedrawDuringViewResize: NSInteger = 2;
75// https://developer.apple.com/documentation/appkit/nsdragoperation
76type NSDragOperation = NSUInteger;
77#[allow(non_upper_case_globals)]
78const NSDragOperationNone: NSDragOperation = 0;
79#[allow(non_upper_case_globals)]
80const NSDragOperationCopy: NSDragOperation = 1;
81
82#[link(name = "CoreGraphics", kind = "framework")]
83unsafe extern "C" {
84 // Widely used private APIs; Apple uses them for their Terminal.app.
85 fn CGSMainConnectionID() -> id;
86 fn CGSSetWindowBackgroundBlurRadius(
87 connection_id: id,
88 window_id: NSInteger,
89 radius: i64,
90 ) -> i32;
91}
92
93#[ctor]
94unsafe fn build_classes() {
95 unsafe {
96 WINDOW_CLASS = build_window_class("GPUIWindow", class!(NSWindow));
97 PANEL_CLASS = build_window_class("GPUIPanel", class!(NSPanel));
98 VIEW_CLASS = {
99 let mut decl = ClassDecl::new("GPUIView", class!(NSView)).unwrap();
100 decl.add_ivar::<*mut c_void>(WINDOW_STATE_IVAR);
101 unsafe {
102 decl.add_method(sel!(dealloc), dealloc_view as extern "C" fn(&Object, Sel));
103
104 decl.add_method(
105 sel!(performKeyEquivalent:),
106 handle_key_equivalent as extern "C" fn(&Object, Sel, id) -> BOOL,
107 );
108 decl.add_method(
109 sel!(keyDown:),
110 handle_key_down as extern "C" fn(&Object, Sel, id),
111 );
112 decl.add_method(
113 sel!(keyUp:),
114 handle_key_up as extern "C" fn(&Object, Sel, id),
115 );
116 decl.add_method(
117 sel!(mouseDown:),
118 handle_view_event as extern "C" fn(&Object, Sel, id),
119 );
120 decl.add_method(
121 sel!(mouseUp:),
122 handle_view_event as extern "C" fn(&Object, Sel, id),
123 );
124 decl.add_method(
125 sel!(rightMouseDown:),
126 handle_view_event as extern "C" fn(&Object, Sel, id),
127 );
128 decl.add_method(
129 sel!(rightMouseUp:),
130 handle_view_event as extern "C" fn(&Object, Sel, id),
131 );
132 decl.add_method(
133 sel!(otherMouseDown:),
134 handle_view_event as extern "C" fn(&Object, Sel, id),
135 );
136 decl.add_method(
137 sel!(otherMouseUp:),
138 handle_view_event as extern "C" fn(&Object, Sel, id),
139 );
140 decl.add_method(
141 sel!(mouseMoved:),
142 handle_view_event as extern "C" fn(&Object, Sel, id),
143 );
144 decl.add_method(
145 sel!(mouseExited:),
146 handle_view_event as extern "C" fn(&Object, Sel, id),
147 );
148 decl.add_method(
149 sel!(mouseDragged:),
150 handle_view_event as extern "C" fn(&Object, Sel, id),
151 );
152 decl.add_method(
153 sel!(scrollWheel:),
154 handle_view_event as extern "C" fn(&Object, Sel, id),
155 );
156 decl.add_method(
157 sel!(swipeWithEvent:),
158 handle_view_event as extern "C" fn(&Object, Sel, id),
159 );
160 decl.add_method(
161 sel!(flagsChanged:),
162 handle_view_event as extern "C" fn(&Object, Sel, id),
163 );
164
165 decl.add_method(
166 sel!(makeBackingLayer),
167 make_backing_layer as extern "C" fn(&Object, Sel) -> id,
168 );
169
170 decl.add_protocol(Protocol::get("CALayerDelegate").unwrap());
171 decl.add_method(
172 sel!(viewDidChangeBackingProperties),
173 view_did_change_backing_properties as extern "C" fn(&Object, Sel),
174 );
175 decl.add_method(
176 sel!(setFrameSize:),
177 set_frame_size as extern "C" fn(&Object, Sel, NSSize),
178 );
179 decl.add_method(
180 sel!(displayLayer:),
181 display_layer as extern "C" fn(&Object, Sel, id),
182 );
183
184 decl.add_protocol(Protocol::get("NSTextInputClient").unwrap());
185 decl.add_method(
186 sel!(validAttributesForMarkedText),
187 valid_attributes_for_marked_text as extern "C" fn(&Object, Sel) -> id,
188 );
189 decl.add_method(
190 sel!(hasMarkedText),
191 has_marked_text as extern "C" fn(&Object, Sel) -> BOOL,
192 );
193 decl.add_method(
194 sel!(markedRange),
195 marked_range as extern "C" fn(&Object, Sel) -> NSRange,
196 );
197 decl.add_method(
198 sel!(selectedRange),
199 selected_range as extern "C" fn(&Object, Sel) -> NSRange,
200 );
201 decl.add_method(
202 sel!(firstRectForCharacterRange:actualRange:),
203 first_rect_for_character_range
204 as extern "C" fn(&Object, Sel, NSRange, id) -> NSRect,
205 );
206 decl.add_method(
207 sel!(insertText:replacementRange:),
208 insert_text as extern "C" fn(&Object, Sel, id, NSRange),
209 );
210 decl.add_method(
211 sel!(setMarkedText:selectedRange:replacementRange:),
212 set_marked_text as extern "C" fn(&Object, Sel, id, NSRange, NSRange),
213 );
214 decl.add_method(sel!(unmarkText), unmark_text as extern "C" fn(&Object, Sel));
215 decl.add_method(
216 sel!(attributedSubstringForProposedRange:actualRange:),
217 attributed_substring_for_proposed_range
218 as extern "C" fn(&Object, Sel, NSRange, *mut c_void) -> id,
219 );
220 decl.add_method(
221 sel!(viewDidChangeEffectiveAppearance),
222 view_did_change_effective_appearance as extern "C" fn(&Object, Sel),
223 );
224
225 // Suppress beep on keystrokes with modifier keys.
226 decl.add_method(
227 sel!(doCommandBySelector:),
228 do_command_by_selector as extern "C" fn(&Object, Sel, Sel),
229 );
230
231 decl.add_method(
232 sel!(acceptsFirstMouse:),
233 accepts_first_mouse as extern "C" fn(&Object, Sel, id) -> BOOL,
234 );
235
236 decl.add_method(
237 sel!(characterIndexForPoint:),
238 character_index_for_point as extern "C" fn(&Object, Sel, NSPoint) -> u64,
239 );
240 }
241 decl.register()
242 };
243 }
244}
245
246pub(crate) fn convert_mouse_position(position: NSPoint, window_height: Pixels) -> Point<Pixels> {
247 point(
248 px(position.x as f32),
249 // macOS screen coordinates are relative to bottom left
250 window_height - px(position.y as f32),
251 )
252}
253
254unsafe fn build_window_class(name: &'static str, superclass: &Class) -> *const Class {
255 unsafe {
256 let mut decl = ClassDecl::new(name, superclass).unwrap();
257 decl.add_ivar::<*mut c_void>(WINDOW_STATE_IVAR);
258 decl.add_method(sel!(dealloc), dealloc_window as extern "C" fn(&Object, Sel));
259
260 decl.add_method(
261 sel!(canBecomeMainWindow),
262 yes as extern "C" fn(&Object, Sel) -> BOOL,
263 );
264 decl.add_method(
265 sel!(canBecomeKeyWindow),
266 yes as extern "C" fn(&Object, Sel) -> BOOL,
267 );
268 decl.add_method(
269 sel!(windowDidResize:),
270 window_did_resize as extern "C" fn(&Object, Sel, id),
271 );
272 decl.add_method(
273 sel!(windowDidChangeOcclusionState:),
274 window_did_change_occlusion_state as extern "C" fn(&Object, Sel, id),
275 );
276 decl.add_method(
277 sel!(windowWillEnterFullScreen:),
278 window_will_enter_fullscreen as extern "C" fn(&Object, Sel, id),
279 );
280 decl.add_method(
281 sel!(windowWillExitFullScreen:),
282 window_will_exit_fullscreen as extern "C" fn(&Object, Sel, id),
283 );
284 decl.add_method(
285 sel!(windowDidMove:),
286 window_did_move as extern "C" fn(&Object, Sel, id),
287 );
288 decl.add_method(
289 sel!(windowDidChangeScreen:),
290 window_did_change_screen as extern "C" fn(&Object, Sel, id),
291 );
292 decl.add_method(
293 sel!(windowDidBecomeKey:),
294 window_did_change_key_status as extern "C" fn(&Object, Sel, id),
295 );
296 decl.add_method(
297 sel!(windowDidResignKey:),
298 window_did_change_key_status as extern "C" fn(&Object, Sel, id),
299 );
300 decl.add_method(
301 sel!(windowShouldClose:),
302 window_should_close as extern "C" fn(&Object, Sel, id) -> BOOL,
303 );
304
305 decl.add_method(sel!(close), close_window as extern "C" fn(&Object, Sel));
306
307 decl.add_method(
308 sel!(draggingEntered:),
309 dragging_entered as extern "C" fn(&Object, Sel, id) -> NSDragOperation,
310 );
311 decl.add_method(
312 sel!(draggingUpdated:),
313 dragging_updated as extern "C" fn(&Object, Sel, id) -> NSDragOperation,
314 );
315 decl.add_method(
316 sel!(draggingExited:),
317 dragging_exited as extern "C" fn(&Object, Sel, id),
318 );
319 decl.add_method(
320 sel!(performDragOperation:),
321 perform_drag_operation as extern "C" fn(&Object, Sel, id) -> BOOL,
322 );
323 decl.add_method(
324 sel!(concludeDragOperation:),
325 conclude_drag_operation as extern "C" fn(&Object, Sel, id),
326 );
327
328 decl.register()
329 }
330}
331
332struct MacWindowState {
333 handle: AnyWindowHandle,
334 executor: ForegroundExecutor,
335 native_window: id,
336 native_view: NonNull<Object>,
337 display_link: Option<DisplayLink>,
338 renderer: renderer::Renderer,
339 request_frame_callback: Option<Box<dyn FnMut(RequestFrameOptions)>>,
340 event_callback: Option<Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>>,
341 activate_callback: Option<Box<dyn FnMut(bool)>>,
342 resize_callback: Option<Box<dyn FnMut(Size<Pixels>, f32)>>,
343 moved_callback: Option<Box<dyn FnMut()>>,
344 should_close_callback: Option<Box<dyn FnMut() -> bool>>,
345 close_callback: Option<Box<dyn FnOnce()>>,
346 appearance_changed_callback: Option<Box<dyn FnMut()>>,
347 input_handler: Option<PlatformInputHandler>,
348 last_key_equivalent: Option<KeyDownEvent>,
349 synthetic_drag_counter: usize,
350 traffic_light_position: Option<Point<Pixels>>,
351 transparent_titlebar: bool,
352 previous_modifiers_changed_event: Option<PlatformInput>,
353 keystroke_for_do_command: Option<Keystroke>,
354 do_command_handled: Option<bool>,
355 external_files_dragged: bool,
356 // Whether the next left-mouse click is also the focusing click.
357 first_mouse: bool,
358 fullscreen_restore_bounds: Bounds<Pixels>,
359}
360
361impl MacWindowState {
362 fn move_traffic_light(&self) {
363 if let Some(traffic_light_position) = self.traffic_light_position {
364 if self.is_fullscreen() {
365 // Moving traffic lights while fullscreen doesn't work,
366 // see https://github.com/zed-industries/zed/issues/4712
367 return;
368 }
369
370 let titlebar_height = self.titlebar_height();
371
372 unsafe {
373 let close_button: id = msg_send![
374 self.native_window,
375 standardWindowButton: NSWindowButton::NSWindowCloseButton
376 ];
377 let min_button: id = msg_send![
378 self.native_window,
379 standardWindowButton: NSWindowButton::NSWindowMiniaturizeButton
380 ];
381 let zoom_button: id = msg_send![
382 self.native_window,
383 standardWindowButton: NSWindowButton::NSWindowZoomButton
384 ];
385
386 let mut close_button_frame: CGRect = msg_send![close_button, frame];
387 let mut min_button_frame: CGRect = msg_send![min_button, frame];
388 let mut zoom_button_frame: CGRect = msg_send![zoom_button, frame];
389 let mut origin = point(
390 traffic_light_position.x,
391 titlebar_height
392 - traffic_light_position.y
393 - px(close_button_frame.size.height as f32),
394 );
395 let button_spacing =
396 px((min_button_frame.origin.x - close_button_frame.origin.x) as f32);
397
398 close_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into());
399 let _: () = msg_send![close_button, setFrame: close_button_frame];
400 origin.x += button_spacing;
401
402 min_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into());
403 let _: () = msg_send![min_button, setFrame: min_button_frame];
404 origin.x += button_spacing;
405
406 zoom_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into());
407 let _: () = msg_send![zoom_button, setFrame: zoom_button_frame];
408 origin.x += button_spacing;
409 }
410 }
411 }
412
413 fn start_display_link(&mut self) {
414 self.stop_display_link();
415 unsafe {
416 if !self
417 .native_window
418 .occlusionState()
419 .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible)
420 {
421 return;
422 }
423 }
424 let display_id = unsafe { display_id_for_screen(self.native_window.screen()) };
425 if let Some(mut display_link) =
426 DisplayLink::new(display_id, self.native_view.as_ptr() as *mut c_void, step).log_err()
427 {
428 display_link.start().log_err();
429 self.display_link = Some(display_link);
430 }
431 }
432
433 fn stop_display_link(&mut self) {
434 self.display_link = None;
435 }
436
437 fn is_maximized(&self) -> bool {
438 unsafe {
439 let bounds = self.bounds();
440 let screen_size = self.native_window.screen().visibleFrame().into();
441 bounds.size == screen_size
442 }
443 }
444
445 fn is_fullscreen(&self) -> bool {
446 unsafe {
447 let style_mask = self.native_window.styleMask();
448 style_mask.contains(NSWindowStyleMask::NSFullScreenWindowMask)
449 }
450 }
451
452 fn bounds(&self) -> Bounds<Pixels> {
453 let mut window_frame = unsafe { NSWindow::frame(self.native_window) };
454 let screen_frame = unsafe {
455 let screen = NSWindow::screen(self.native_window);
456 NSScreen::frame(screen)
457 };
458
459 // Flip the y coordinate to be top-left origin
460 window_frame.origin.y =
461 screen_frame.size.height - window_frame.origin.y - window_frame.size.height;
462
463 Bounds::new(
464 point(
465 px((window_frame.origin.x - screen_frame.origin.x) as f32),
466 px((window_frame.origin.y + screen_frame.origin.y) as f32),
467 ),
468 size(
469 px(window_frame.size.width as f32),
470 px(window_frame.size.height as f32),
471 ),
472 )
473 }
474
475 fn content_size(&self) -> Size<Pixels> {
476 let NSSize { width, height, .. } =
477 unsafe { NSView::frame(self.native_window.contentView()) }.size;
478 size(px(width as f32), px(height as f32))
479 }
480
481 fn scale_factor(&self) -> f32 {
482 get_scale_factor(self.native_window)
483 }
484
485 fn titlebar_height(&self) -> Pixels {
486 unsafe {
487 let frame = NSWindow::frame(self.native_window);
488 let content_layout_rect: CGRect = msg_send![self.native_window, contentLayoutRect];
489 px((frame.size.height - content_layout_rect.size.height) as f32)
490 }
491 }
492
493 fn window_bounds(&self) -> WindowBounds {
494 if self.is_fullscreen() {
495 WindowBounds::Fullscreen(self.fullscreen_restore_bounds)
496 } else {
497 WindowBounds::Windowed(self.bounds())
498 }
499 }
500}
501
502unsafe impl Send for MacWindowState {}
503
504pub(crate) struct MacWindow(Arc<Mutex<MacWindowState>>);
505
506impl MacWindow {
507 pub fn open(
508 handle: AnyWindowHandle,
509 WindowParams {
510 bounds,
511 titlebar,
512 kind,
513 is_movable,
514 focus,
515 show,
516 display_id,
517 window_min_size,
518 }: WindowParams,
519 executor: ForegroundExecutor,
520 renderer_context: renderer::Context,
521 ) -> Self {
522 unsafe {
523 let pool = NSAutoreleasePool::new(nil);
524
525 let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: NO];
526
527 let mut style_mask;
528 if let Some(titlebar) = titlebar.as_ref() {
529 style_mask = NSWindowStyleMask::NSClosableWindowMask
530 | NSWindowStyleMask::NSMiniaturizableWindowMask
531 | NSWindowStyleMask::NSResizableWindowMask
532 | NSWindowStyleMask::NSTitledWindowMask;
533
534 if titlebar.appears_transparent {
535 style_mask |= NSWindowStyleMask::NSFullSizeContentViewWindowMask;
536 }
537 } else {
538 style_mask = NSWindowStyleMask::NSTitledWindowMask
539 | NSWindowStyleMask::NSFullSizeContentViewWindowMask;
540 }
541
542 let native_window: id = match kind {
543 WindowKind::Normal => msg_send![WINDOW_CLASS, alloc],
544 WindowKind::PopUp => {
545 style_mask |= NSWindowStyleMaskNonactivatingPanel;
546 msg_send![PANEL_CLASS, alloc]
547 }
548 };
549
550 let display = display_id
551 .and_then(MacDisplay::find_by_id)
552 .unwrap_or_else(MacDisplay::primary);
553
554 let mut target_screen = nil;
555 let mut screen_frame = None;
556
557 let screens = NSScreen::screens(nil);
558 let count: u64 = cocoa::foundation::NSArray::count(screens);
559 for i in 0..count {
560 let screen = cocoa::foundation::NSArray::objectAtIndex(screens, i);
561 let frame = NSScreen::frame(screen);
562 let display_id = display_id_for_screen(screen);
563 if display_id == display.0 {
564 screen_frame = Some(frame);
565 target_screen = screen;
566 }
567 }
568
569 let screen_frame = screen_frame.unwrap_or_else(|| {
570 let screen = NSScreen::mainScreen(nil);
571 target_screen = screen;
572 NSScreen::frame(screen)
573 });
574
575 let window_rect = NSRect::new(
576 NSPoint::new(
577 screen_frame.origin.x + bounds.origin.x.0 as f64,
578 screen_frame.origin.y
579 + (display.bounds().size.height - bounds.origin.y).0 as f64,
580 ),
581 NSSize::new(bounds.size.width.0 as f64, bounds.size.height.0 as f64),
582 );
583
584 let native_window = native_window.initWithContentRect_styleMask_backing_defer_screen_(
585 window_rect,
586 style_mask,
587 NSBackingStoreBuffered,
588 NO,
589 target_screen,
590 );
591 assert!(!native_window.is_null());
592 let () = msg_send![
593 native_window,
594 registerForDraggedTypes:
595 NSArray::arrayWithObject(nil, NSFilenamesPboardType)
596 ];
597 let () = msg_send![
598 native_window,
599 setReleasedWhenClosed: NO
600 ];
601
602 let native_view: id = msg_send![VIEW_CLASS, alloc];
603 let native_view = NSView::init(native_view);
604 assert!(!native_view.is_null());
605
606 let mut window = Self(Arc::new(Mutex::new(MacWindowState {
607 handle,
608 executor,
609 native_window,
610 native_view: NonNull::new_unchecked(native_view),
611 display_link: None,
612 renderer: renderer::new_renderer(
613 renderer_context,
614 native_window as *mut _,
615 native_view as *mut _,
616 bounds.size.map(|pixels| pixels.0),
617 false,
618 ),
619 request_frame_callback: None,
620 event_callback: None,
621 activate_callback: None,
622 resize_callback: None,
623 moved_callback: None,
624 should_close_callback: None,
625 close_callback: None,
626 appearance_changed_callback: None,
627 input_handler: None,
628 last_key_equivalent: None,
629 synthetic_drag_counter: 0,
630 traffic_light_position: titlebar
631 .as_ref()
632 .and_then(|titlebar| titlebar.traffic_light_position),
633 transparent_titlebar: titlebar
634 .as_ref()
635 .map_or(true, |titlebar| titlebar.appears_transparent),
636 previous_modifiers_changed_event: None,
637 keystroke_for_do_command: None,
638 do_command_handled: None,
639 external_files_dragged: false,
640 first_mouse: false,
641 fullscreen_restore_bounds: Bounds::default(),
642 })));
643
644 (*native_window).set_ivar(
645 WINDOW_STATE_IVAR,
646 Arc::into_raw(window.0.clone()) as *const c_void,
647 );
648 native_window.setDelegate_(native_window);
649 (*native_view).set_ivar(
650 WINDOW_STATE_IVAR,
651 Arc::into_raw(window.0.clone()) as *const c_void,
652 );
653
654 if let Some(title) = titlebar
655 .as_ref()
656 .and_then(|t| t.title.as_ref().map(AsRef::as_ref))
657 {
658 window.set_title(title);
659 }
660
661 native_window.setMovable_(is_movable as BOOL);
662
663 if let Some(window_min_size) = window_min_size {
664 native_window.setContentMinSize_(NSSize {
665 width: window_min_size.width.to_f64(),
666 height: window_min_size.height.to_f64(),
667 });
668 }
669
670 if titlebar.map_or(true, |titlebar| titlebar.appears_transparent) {
671 native_window.setTitlebarAppearsTransparent_(YES);
672 native_window.setTitleVisibility_(NSWindowTitleVisibility::NSWindowTitleHidden);
673 }
674
675 native_view.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable);
676 native_view.setWantsBestResolutionOpenGLSurface_(YES);
677
678 // From winit crate: On Mojave, views automatically become layer-backed shortly after
679 // being added to a native_window. Changing the layer-backedness of a view breaks the
680 // association between the view and its associated OpenGL context. To work around this,
681 // on we explicitly make the view layer-backed up front so that AppKit doesn't do it
682 // itself and break the association with its context.
683 native_view.setWantsLayer(YES);
684 let _: () = msg_send![
685 native_view,
686 setLayerContentsRedrawPolicy: NSViewLayerContentsRedrawDuringViewResize
687 ];
688
689 native_window.setContentView_(native_view.autorelease());
690 native_window.makeFirstResponder_(native_view);
691
692 match kind {
693 WindowKind::Normal => {
694 native_window.setLevel_(NSNormalWindowLevel);
695 native_window.setAcceptsMouseMovedEvents_(YES);
696 }
697 WindowKind::PopUp => {
698 // Use a tracking area to allow receiving MouseMoved events even when
699 // the window or application aren't active, which is often the case
700 // e.g. for notification windows.
701 let tracking_area: id = msg_send![class!(NSTrackingArea), alloc];
702 let _: () = msg_send![
703 tracking_area,
704 initWithRect: NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.))
705 options: NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved | NSTrackingActiveAlways | NSTrackingInVisibleRect
706 owner: native_view
707 userInfo: nil
708 ];
709 let _: () =
710 msg_send![native_view, addTrackingArea: tracking_area.autorelease()];
711
712 native_window.setLevel_(NSPopUpWindowLevel);
713 let _: () = msg_send![
714 native_window,
715 setAnimationBehavior: NSWindowAnimationBehaviorUtilityWindow
716 ];
717 native_window.setCollectionBehavior_(
718 NSWindowCollectionBehavior::NSWindowCollectionBehaviorCanJoinAllSpaces |
719 NSWindowCollectionBehavior::NSWindowCollectionBehaviorFullScreenAuxiliary
720 );
721 }
722 }
723
724 if focus && show {
725 native_window.makeKeyAndOrderFront_(nil);
726 } else if show {
727 native_window.orderFront_(nil);
728 }
729
730 // Set the initial position of the window to the specified origin.
731 // Although we already specified the position using `initWithContentRect_styleMask_backing_defer_screen_`,
732 // the window position might be incorrect if the main screen (the screen that contains the window that has focus)
733 // is different from the primary screen.
734 NSWindow::setFrameTopLeftPoint_(native_window, window_rect.origin);
735 window.0.lock().move_traffic_light();
736
737 pool.drain();
738
739 window
740 }
741 }
742
743 pub fn active_window() -> Option<AnyWindowHandle> {
744 unsafe {
745 let app = NSApplication::sharedApplication(nil);
746 let main_window: id = msg_send![app, mainWindow];
747 if main_window.is_null() {
748 return None;
749 }
750
751 if msg_send![main_window, isKindOfClass: WINDOW_CLASS] {
752 let handle = get_window_state(&*main_window).lock().handle;
753 Some(handle)
754 } else {
755 None
756 }
757 }
758 }
759
760 pub fn ordered_windows() -> Vec<AnyWindowHandle> {
761 unsafe {
762 let app = NSApplication::sharedApplication(nil);
763 let windows: id = msg_send![app, orderedWindows];
764 let count: NSUInteger = msg_send![windows, count];
765
766 let mut window_handles = Vec::new();
767 for i in 0..count {
768 let window: id = msg_send![windows, objectAtIndex:i];
769 if msg_send![window, isKindOfClass: WINDOW_CLASS] {
770 let handle = get_window_state(&*window).lock().handle;
771 window_handles.push(handle);
772 }
773 }
774
775 window_handles
776 }
777 }
778}
779
780impl Drop for MacWindow {
781 fn drop(&mut self) {
782 let mut this = self.0.lock();
783 this.renderer.destroy();
784 let window = this.native_window;
785 this.display_link.take();
786 unsafe {
787 this.native_window.setDelegate_(nil);
788 }
789 this.input_handler.take();
790 this.executor
791 .spawn(async move {
792 unsafe {
793 window.close();
794 window.autorelease();
795 }
796 })
797 .detach();
798 }
799}
800
801impl PlatformWindow for MacWindow {
802 fn bounds(&self) -> Bounds<Pixels> {
803 self.0.as_ref().lock().bounds()
804 }
805
806 fn window_bounds(&self) -> WindowBounds {
807 self.0.as_ref().lock().window_bounds()
808 }
809
810 fn is_maximized(&self) -> bool {
811 self.0.as_ref().lock().is_maximized()
812 }
813
814 fn content_size(&self) -> Size<Pixels> {
815 self.0.as_ref().lock().content_size()
816 }
817
818 fn resize(&mut self, size: Size<Pixels>) {
819 let this = self.0.lock();
820 let window = this.native_window;
821 this.executor
822 .spawn(async move {
823 unsafe {
824 window.setContentSize_(NSSize {
825 width: size.width.0 as f64,
826 height: size.height.0 as f64,
827 });
828 }
829 })
830 .detach();
831 }
832
833 fn scale_factor(&self) -> f32 {
834 self.0.as_ref().lock().scale_factor()
835 }
836
837 fn appearance(&self) -> WindowAppearance {
838 unsafe {
839 let appearance: id = msg_send![self.0.lock().native_window, effectiveAppearance];
840 WindowAppearance::from_native(appearance)
841 }
842 }
843
844 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
845 unsafe {
846 let screen = self.0.lock().native_window.screen();
847 let device_description: id = msg_send![screen, deviceDescription];
848 let screen_number: id = NSDictionary::valueForKey_(
849 device_description,
850 NSString::alloc(nil).init_str("NSScreenNumber"),
851 );
852
853 let screen_number: u32 = msg_send![screen_number, unsignedIntValue];
854
855 Some(Rc::new(MacDisplay(screen_number)))
856 }
857 }
858
859 fn mouse_position(&self) -> Point<Pixels> {
860 let position = unsafe {
861 self.0
862 .lock()
863 .native_window
864 .mouseLocationOutsideOfEventStream()
865 };
866 convert_mouse_position(position, self.content_size().height)
867 }
868
869 fn modifiers(&self) -> Modifiers {
870 unsafe {
871 let modifiers: NSEventModifierFlags = msg_send![class!(NSEvent), modifierFlags];
872
873 let control = modifiers.contains(NSEventModifierFlags::NSControlKeyMask);
874 let alt = modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask);
875 let shift = modifiers.contains(NSEventModifierFlags::NSShiftKeyMask);
876 let command = modifiers.contains(NSEventModifierFlags::NSCommandKeyMask);
877 let function = modifiers.contains(NSEventModifierFlags::NSFunctionKeyMask);
878
879 Modifiers {
880 control,
881 alt,
882 shift,
883 platform: command,
884 function,
885 }
886 }
887 }
888
889 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
890 self.0.as_ref().lock().input_handler = Some(input_handler);
891 }
892
893 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
894 self.0.as_ref().lock().input_handler.take()
895 }
896
897 fn prompt(
898 &self,
899 level: PromptLevel,
900 msg: &str,
901 detail: Option<&str>,
902 answers: &[&str],
903 ) -> Option<oneshot::Receiver<usize>> {
904 // macOs applies overrides to modal window buttons after they are added.
905 // Two most important for this logic are:
906 // * Buttons with "Cancel" title will be displayed as the last buttons in the modal
907 // * Last button added to the modal via `addButtonWithTitle` stays focused
908 // * Focused buttons react on "space"/" " keypresses
909 // * Usage of `keyEquivalent`, `makeFirstResponder` or `setInitialFirstResponder` does not change the focus
910 //
911 // See also https://developer.apple.com/documentation/appkit/nsalert/1524532-addbuttonwithtitle#discussion
912 // ```
913 // By default, the first button has a key equivalent of Return,
914 // any button with a title of “Cancel” has a key equivalent of Escape,
915 // 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).
916 // ```
917 //
918 // To avoid situations when the last element added is "Cancel" and it gets the focus
919 // (hence stealing both ESC and Space shortcuts), we find and add one non-Cancel button
920 // last, so it gets focus and a Space shortcut.
921 // This way, "Save this file? Yes/No/Cancel"-ish modals will get all three buttons mapped with a key.
922 let latest_non_cancel_label = answers
923 .iter()
924 .enumerate()
925 .rev()
926 .find(|(_, label)| **label != "Cancel")
927 .filter(|&(label_index, _)| label_index > 0);
928
929 unsafe {
930 let alert: id = msg_send![class!(NSAlert), alloc];
931 let alert: id = msg_send![alert, init];
932 let alert_style = match level {
933 PromptLevel::Info => 1,
934 PromptLevel::Warning => 0,
935 PromptLevel::Critical => 2,
936 };
937 let _: () = msg_send![alert, setAlertStyle: alert_style];
938 let _: () = msg_send![alert, setMessageText: ns_string(msg)];
939 if let Some(detail) = detail {
940 let _: () = msg_send![alert, setInformativeText: ns_string(detail)];
941 }
942
943 for (ix, answer) in answers
944 .iter()
945 .enumerate()
946 .filter(|&(ix, _)| Some(ix) != latest_non_cancel_label.map(|(ix, _)| ix))
947 {
948 let button: id = msg_send![alert, addButtonWithTitle: ns_string(answer)];
949 let _: () = msg_send![button, setTag: ix as NSInteger];
950 }
951 if let Some((ix, answer)) = latest_non_cancel_label {
952 let button: id = msg_send![alert, addButtonWithTitle: ns_string(answer)];
953 let _: () = msg_send![button, setTag: ix as NSInteger];
954 }
955
956 let (done_tx, done_rx) = oneshot::channel();
957 let done_tx = Cell::new(Some(done_tx));
958 let block = ConcreteBlock::new(move |answer: NSInteger| {
959 if let Some(done_tx) = done_tx.take() {
960 let _ = done_tx.send(answer.try_into().unwrap());
961 }
962 });
963 let block = block.copy();
964 let native_window = self.0.lock().native_window;
965 let executor = self.0.lock().executor.clone();
966 executor
967 .spawn(async move {
968 let _: () = msg_send![
969 alert,
970 beginSheetModalForWindow: native_window
971 completionHandler: block
972 ];
973 })
974 .detach();
975
976 Some(done_rx)
977 }
978 }
979
980 fn activate(&self) {
981 let window = self.0.lock().native_window;
982 let executor = self.0.lock().executor.clone();
983 executor
984 .spawn(async move {
985 unsafe {
986 let _: () = msg_send![window, makeKeyAndOrderFront: nil];
987 }
988 })
989 .detach();
990 }
991
992 fn is_active(&self) -> bool {
993 unsafe { self.0.lock().native_window.isKeyWindow() == YES }
994 }
995
996 // is_hovered is unused on macOS. See Window::is_window_hovered.
997 fn is_hovered(&self) -> bool {
998 false
999 }
1000
1001 fn set_title(&mut self, title: &str) {
1002 unsafe {
1003 let app = NSApplication::sharedApplication(nil);
1004 let window = self.0.lock().native_window;
1005 let title = ns_string(title);
1006 let _: () = msg_send![app, changeWindowsItem:window title:title filename:false];
1007 let _: () = msg_send![window, setTitle: title];
1008 self.0.lock().move_traffic_light();
1009 }
1010 }
1011
1012 fn set_app_id(&mut self, _app_id: &str) {}
1013
1014 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
1015 let mut this = self.0.as_ref().lock();
1016 this.renderer
1017 .update_transparency(background_appearance != WindowBackgroundAppearance::Opaque);
1018
1019 let blur_radius = if background_appearance == WindowBackgroundAppearance::Blurred {
1020 80
1021 } else {
1022 0
1023 };
1024 let opaque = if background_appearance == WindowBackgroundAppearance::Opaque {
1025 YES
1026 } else {
1027 NO
1028 };
1029 unsafe {
1030 this.native_window.setOpaque_(opaque);
1031 // Shadows for transparent windows cause artifacts and performance issues
1032 this.native_window.setHasShadow_(opaque);
1033 let clear_color = if opaque == YES {
1034 NSColor::colorWithSRGBRed_green_blue_alpha_(nil, 0f64, 0f64, 0f64, 1f64)
1035 } else {
1036 NSColor::clearColor(nil)
1037 };
1038 this.native_window.setBackgroundColor_(clear_color);
1039 let window_number = this.native_window.windowNumber();
1040 CGSSetWindowBackgroundBlurRadius(CGSMainConnectionID(), window_number, blur_radius);
1041 }
1042 }
1043
1044 fn set_edited(&mut self, edited: bool) {
1045 unsafe {
1046 let window = self.0.lock().native_window;
1047 msg_send![window, setDocumentEdited: edited as BOOL]
1048 }
1049
1050 // Changing the document edited state resets the traffic light position,
1051 // so we have to move it again.
1052 self.0.lock().move_traffic_light();
1053 }
1054
1055 fn show_character_palette(&self) {
1056 let this = self.0.lock();
1057 let window = this.native_window;
1058 this.executor
1059 .spawn(async move {
1060 unsafe {
1061 let app = NSApplication::sharedApplication(nil);
1062 let _: () = msg_send![app, orderFrontCharacterPalette: window];
1063 }
1064 })
1065 .detach();
1066 }
1067
1068 fn minimize(&self) {
1069 let window = self.0.lock().native_window;
1070 unsafe {
1071 window.miniaturize_(nil);
1072 }
1073 }
1074
1075 fn zoom(&self) {
1076 let this = self.0.lock();
1077 let window = this.native_window;
1078 this.executor
1079 .spawn(async move {
1080 unsafe {
1081 window.zoom_(nil);
1082 }
1083 })
1084 .detach();
1085 }
1086
1087 fn toggle_fullscreen(&self) {
1088 let this = self.0.lock();
1089 let window = this.native_window;
1090 this.executor
1091 .spawn(async move {
1092 unsafe {
1093 window.toggleFullScreen_(nil);
1094 }
1095 })
1096 .detach();
1097 }
1098
1099 fn is_fullscreen(&self) -> bool {
1100 let this = self.0.lock();
1101 let window = this.native_window;
1102
1103 unsafe {
1104 window
1105 .styleMask()
1106 .contains(NSWindowStyleMask::NSFullScreenWindowMask)
1107 }
1108 }
1109
1110 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
1111 self.0.as_ref().lock().request_frame_callback = Some(callback);
1112 }
1113
1114 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>) {
1115 self.0.as_ref().lock().event_callback = Some(callback);
1116 }
1117
1118 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1119 self.0.as_ref().lock().activate_callback = Some(callback);
1120 }
1121
1122 fn on_hover_status_change(&self, _: Box<dyn FnMut(bool)>) {}
1123
1124 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
1125 self.0.as_ref().lock().resize_callback = Some(callback);
1126 }
1127
1128 fn on_moved(&self, callback: Box<dyn FnMut()>) {
1129 self.0.as_ref().lock().moved_callback = Some(callback);
1130 }
1131
1132 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
1133 self.0.as_ref().lock().should_close_callback = Some(callback);
1134 }
1135
1136 fn on_close(&self, callback: Box<dyn FnOnce()>) {
1137 self.0.as_ref().lock().close_callback = Some(callback);
1138 }
1139
1140 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
1141 self.0.lock().appearance_changed_callback = Some(callback);
1142 }
1143
1144 fn draw(&self, scene: &crate::Scene) {
1145 let mut this = self.0.lock();
1146 this.renderer.draw(scene);
1147 }
1148
1149 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
1150 self.0.lock().renderer.sprite_atlas().clone()
1151 }
1152
1153 fn gpu_specs(&self) -> Option<crate::GpuSpecs> {
1154 None
1155 }
1156
1157 fn update_ime_position(&self, _bounds: Bounds<ScaledPixels>) {
1158 let executor = self.0.lock().executor.clone();
1159 executor
1160 .spawn(async move {
1161 unsafe {
1162 let input_context: id =
1163 msg_send![class!(NSTextInputContext), currentInputContext];
1164 if input_context.is_null() {
1165 return;
1166 }
1167 let _: () = msg_send![input_context, invalidateCharacterCoordinates];
1168 }
1169 })
1170 .detach()
1171 }
1172}
1173
1174impl rwh::HasWindowHandle for MacWindow {
1175 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
1176 // SAFETY: The AppKitWindowHandle is a wrapper around a pointer to an NSView
1177 unsafe {
1178 Ok(rwh::WindowHandle::borrow_raw(rwh::RawWindowHandle::AppKit(
1179 rwh::AppKitWindowHandle::new(self.0.lock().native_view.cast()),
1180 )))
1181 }
1182 }
1183}
1184
1185impl rwh::HasDisplayHandle for MacWindow {
1186 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
1187 // SAFETY: This is a no-op on macOS
1188 unsafe {
1189 Ok(rwh::DisplayHandle::borrow_raw(
1190 rwh::AppKitDisplayHandle::new().into(),
1191 ))
1192 }
1193 }
1194}
1195
1196fn get_scale_factor(native_window: id) -> f32 {
1197 let factor = unsafe {
1198 let screen: id = msg_send![native_window, screen];
1199 NSScreen::backingScaleFactor(screen) as f32
1200 };
1201
1202 // We are not certain what triggers this, but it seems that sometimes
1203 // this method would return 0 (https://github.com/zed-industries/zed/issues/6412)
1204 // It seems most likely that this would happen if the window has no screen
1205 // (if it is off-screen), though we'd expect to see viewDidChangeBackingProperties before
1206 // it was rendered for real.
1207 // Regardless, attempt to avoid the issue here.
1208 if factor == 0.0 { 2. } else { factor }
1209}
1210
1211unsafe fn get_window_state(object: &Object) -> Arc<Mutex<MacWindowState>> {
1212 unsafe {
1213 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1214 let rc1 = Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1215 let rc2 = rc1.clone();
1216 mem::forget(rc1);
1217 rc2
1218 }
1219}
1220
1221unsafe fn drop_window_state(object: &Object) {
1222 unsafe {
1223 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1224 Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1225 }
1226}
1227
1228extern "C" fn yes(_: &Object, _: Sel) -> BOOL {
1229 YES
1230}
1231
1232extern "C" fn dealloc_window(this: &Object, _: Sel) {
1233 unsafe {
1234 drop_window_state(this);
1235 let _: () = msg_send![super(this, class!(NSWindow)), dealloc];
1236 }
1237}
1238
1239extern "C" fn dealloc_view(this: &Object, _: Sel) {
1240 unsafe {
1241 drop_window_state(this);
1242 let _: () = msg_send![super(this, class!(NSView)), dealloc];
1243 }
1244}
1245
1246extern "C" fn handle_key_equivalent(this: &Object, _: Sel, native_event: id) -> BOOL {
1247 handle_key_event(this, native_event, true)
1248}
1249
1250extern "C" fn handle_key_down(this: &Object, _: Sel, native_event: id) {
1251 handle_key_event(this, native_event, false);
1252}
1253
1254extern "C" fn handle_key_up(this: &Object, _: Sel, native_event: id) {
1255 handle_key_event(this, native_event, false);
1256}
1257
1258// Things to test if you're modifying this method:
1259// U.S. layout:
1260// - The IME consumes characters like 'j' and 'k', which makes paging through `less` in
1261// the terminal behave incorrectly by default. This behavior should be patched by our
1262// IME integration
1263// - `alt-t` should open the tasks menu
1264// - In vim mode, this keybinding should work:
1265// ```
1266// {
1267// "context": "Editor && vim_mode == insert",
1268// "bindings": {"j j": "vim::NormalBefore"}
1269// }
1270// ```
1271// and typing 'j k' in insert mode with this keybinding should insert the two characters
1272// Brazilian layout:
1273// - `" space` should create an unmarked quote
1274// - `" backspace` should delete the marked quote
1275// - `" "`should create an unmarked quote and a second marked quote
1276// - `" up` should insert a quote, unmark it, and move up one line
1277// - `" cmd-down` should insert a quote, unmark it, and move to the end of the file
1278// - `cmd-ctrl-space` and clicking on an emoji should type it
1279// Czech (QWERTY) layout:
1280// - in vim mode `option-4` should go to end of line (same as $)
1281// Japanese (Romaji) layout:
1282// - type `a i left down up enter enter` should create an unmarked text "愛"
1283extern "C" fn handle_key_event(this: &Object, native_event: id, key_equivalent: bool) -> BOOL {
1284 let window_state = unsafe { get_window_state(this) };
1285 let mut lock = window_state.as_ref().lock();
1286
1287 let window_height = lock.content_size().height;
1288 let event = unsafe { PlatformInput::from_native(native_event, Some(window_height)) };
1289
1290 let Some(event) = event else {
1291 return NO;
1292 };
1293
1294 let run_callback = |event: PlatformInput| -> BOOL {
1295 let mut callback = window_state.as_ref().lock().event_callback.take();
1296 let handled: BOOL = if let Some(callback) = callback.as_mut() {
1297 !callback(event).propagate as BOOL
1298 } else {
1299 NO
1300 };
1301 window_state.as_ref().lock().event_callback = callback;
1302 handled
1303 };
1304
1305 match event {
1306 PlatformInput::KeyDown(mut key_down_event) => {
1307 // For certain keystrokes, macOS will first dispatch a "key equivalent" event.
1308 // If that event isn't handled, it will then dispatch a "key down" event. GPUI
1309 // makes no distinction between these two types of events, so we need to ignore
1310 // the "key down" event if we've already just processed its "key equivalent" version.
1311 if key_equivalent {
1312 lock.last_key_equivalent = Some(key_down_event.clone());
1313 } else if lock.last_key_equivalent.take().as_ref() == Some(&key_down_event) {
1314 return NO;
1315 }
1316
1317 drop(lock);
1318
1319 let is_composing =
1320 with_input_handler(this, |input_handler| input_handler.marked_text_range())
1321 .flatten()
1322 .is_some();
1323
1324 // If we're composing, send the key to the input handler first;
1325 // otherwise we only send to the input handler if we don't have a matching binding.
1326 // The input handler may call `do_command_by_selector` if it doesn't know how to handle
1327 // a key. If it does so, it will return YES so we won't send the key twice.
1328 // We also do this for non-printing keys (like arrow keys and escape) as the IME menu
1329 // may need them even if there is no marked text;
1330 // however we skip keys with control or the input handler adds control-characters to the buffer.
1331 // and keys with function, as the input handler swallows them.
1332 if is_composing
1333 || (key_down_event.keystroke.key_char.is_none()
1334 && !key_down_event.keystroke.modifiers.control
1335 && !key_down_event.keystroke.modifiers.function)
1336 {
1337 {
1338 let mut lock = window_state.as_ref().lock();
1339 lock.keystroke_for_do_command = Some(key_down_event.keystroke.clone());
1340 lock.do_command_handled.take();
1341 drop(lock);
1342 }
1343
1344 let handled: BOOL = unsafe {
1345 let input_context: id = msg_send![this, inputContext];
1346 msg_send![input_context, handleEvent: native_event]
1347 };
1348 window_state.as_ref().lock().keystroke_for_do_command.take();
1349 if let Some(handled) = window_state.as_ref().lock().do_command_handled.take() {
1350 return handled as BOOL;
1351 } else if handled == YES {
1352 return YES;
1353 }
1354
1355 let handled = run_callback(PlatformInput::KeyDown(key_down_event));
1356 return handled;
1357 }
1358
1359 let handled = run_callback(PlatformInput::KeyDown(key_down_event.clone()));
1360 if handled == YES {
1361 return YES;
1362 }
1363
1364 if key_down_event.is_held {
1365 if let Some(key_char) = key_down_event.keystroke.key_char.as_ref() {
1366 let handled = with_input_handler(&this, |input_handler| {
1367 if !input_handler.apple_press_and_hold_enabled() {
1368 input_handler.replace_text_in_range(None, &key_char);
1369 return YES;
1370 }
1371 NO
1372 });
1373 if handled == Some(YES) {
1374 return YES;
1375 }
1376 }
1377 }
1378
1379 // Don't send key equivalents to the input handler,
1380 // or macOS shortcuts like cmd-` will stop working.
1381 if key_equivalent {
1382 return NO;
1383 }
1384
1385 unsafe {
1386 let input_context: id = msg_send![this, inputContext];
1387 msg_send![input_context, handleEvent: native_event]
1388 }
1389 }
1390
1391 PlatformInput::KeyUp(_) => {
1392 drop(lock);
1393 run_callback(event)
1394 }
1395
1396 _ => NO,
1397 }
1398}
1399
1400extern "C" fn handle_view_event(this: &Object, _: Sel, native_event: id) {
1401 let window_state = unsafe { get_window_state(this) };
1402 let weak_window_state = Arc::downgrade(&window_state);
1403 let mut lock = window_state.as_ref().lock();
1404 let window_height = lock.content_size().height;
1405 let event = unsafe { PlatformInput::from_native(native_event, Some(window_height)) };
1406
1407 if let Some(mut event) = event {
1408 match &mut event {
1409 PlatformInput::MouseDown(
1410 event @ MouseDownEvent {
1411 button: MouseButton::Left,
1412 modifiers: Modifiers { control: true, .. },
1413 ..
1414 },
1415 ) => {
1416 // On mac, a ctrl-left click should be handled as a right click.
1417 *event = MouseDownEvent {
1418 button: MouseButton::Right,
1419 modifiers: Modifiers {
1420 control: false,
1421 ..event.modifiers
1422 },
1423 click_count: 1,
1424 ..*event
1425 };
1426 }
1427
1428 // Handles focusing click.
1429 PlatformInput::MouseDown(
1430 event @ MouseDownEvent {
1431 button: MouseButton::Left,
1432 ..
1433 },
1434 ) if (lock.first_mouse) => {
1435 *event = MouseDownEvent {
1436 first_mouse: true,
1437 ..*event
1438 };
1439 lock.first_mouse = false;
1440 }
1441
1442 // Because we map a ctrl-left_down to a right_down -> right_up let's ignore
1443 // the ctrl-left_up to avoid having a mismatch in button down/up events if the
1444 // user is still holding ctrl when releasing the left mouse button
1445 PlatformInput::MouseUp(
1446 event @ MouseUpEvent {
1447 button: MouseButton::Left,
1448 modifiers: Modifiers { control: true, .. },
1449 ..
1450 },
1451 ) => {
1452 *event = MouseUpEvent {
1453 button: MouseButton::Right,
1454 modifiers: Modifiers {
1455 control: false,
1456 ..event.modifiers
1457 },
1458 click_count: 1,
1459 ..*event
1460 };
1461 }
1462
1463 _ => {}
1464 };
1465
1466 match &event {
1467 PlatformInput::MouseDown(_) => {
1468 drop(lock);
1469 unsafe {
1470 let input_context: id = msg_send![this, inputContext];
1471 msg_send![input_context, handleEvent: native_event]
1472 }
1473 lock = window_state.as_ref().lock();
1474 }
1475 PlatformInput::MouseMove(
1476 event @ MouseMoveEvent {
1477 pressed_button: Some(_),
1478 ..
1479 },
1480 ) => {
1481 // Synthetic drag is used for selecting long buffer contents while buffer is being scrolled.
1482 // External file drag and drop is able to emit its own synthetic mouse events which will conflict
1483 // with these ones.
1484 if !lock.external_files_dragged {
1485 lock.synthetic_drag_counter += 1;
1486 let executor = lock.executor.clone();
1487 executor
1488 .spawn(synthetic_drag(
1489 weak_window_state,
1490 lock.synthetic_drag_counter,
1491 event.clone(),
1492 ))
1493 .detach();
1494 }
1495 }
1496
1497 PlatformInput::MouseUp(MouseUpEvent { .. }) => {
1498 lock.synthetic_drag_counter += 1;
1499 }
1500
1501 PlatformInput::ModifiersChanged(ModifiersChangedEvent { modifiers }) => {
1502 // Only raise modifiers changed event when they have actually changed
1503 if let Some(PlatformInput::ModifiersChanged(ModifiersChangedEvent {
1504 modifiers: prev_modifiers,
1505 })) = &lock.previous_modifiers_changed_event
1506 {
1507 if prev_modifiers == modifiers {
1508 return;
1509 }
1510 }
1511
1512 lock.previous_modifiers_changed_event = Some(event.clone());
1513 }
1514
1515 _ => {}
1516 }
1517
1518 if let Some(mut callback) = lock.event_callback.take() {
1519 drop(lock);
1520 callback(event);
1521 window_state.lock().event_callback = Some(callback);
1522 }
1523 }
1524}
1525
1526extern "C" fn window_did_change_occlusion_state(this: &Object, _: Sel, _: id) {
1527 let window_state = unsafe { get_window_state(this) };
1528 let lock = &mut *window_state.lock();
1529 unsafe {
1530 if lock
1531 .native_window
1532 .occlusionState()
1533 .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible)
1534 {
1535 lock.start_display_link();
1536 } else {
1537 lock.stop_display_link();
1538 }
1539 }
1540}
1541
1542extern "C" fn window_did_resize(this: &Object, _: Sel, _: id) {
1543 let window_state = unsafe { get_window_state(this) };
1544 window_state.as_ref().lock().move_traffic_light();
1545}
1546
1547extern "C" fn window_will_enter_fullscreen(this: &Object, _: Sel, _: id) {
1548 let window_state = unsafe { get_window_state(this) };
1549 let mut lock = window_state.as_ref().lock();
1550 lock.fullscreen_restore_bounds = lock.bounds();
1551
1552 let min_version = NSOperatingSystemVersion::new(15, 3, 0);
1553
1554 if is_macos_version_at_least(min_version) {
1555 unsafe {
1556 lock.native_window.setTitlebarAppearsTransparent_(NO);
1557 }
1558 }
1559}
1560
1561extern "C" fn window_will_exit_fullscreen(this: &Object, _: Sel, _: id) {
1562 let window_state = unsafe { get_window_state(this) };
1563 let mut lock = window_state.as_ref().lock();
1564
1565 let min_version = NSOperatingSystemVersion::new(15, 3, 0);
1566
1567 if is_macos_version_at_least(min_version) && lock.transparent_titlebar {
1568 unsafe {
1569 lock.native_window.setTitlebarAppearsTransparent_(YES);
1570 }
1571 }
1572}
1573
1574fn is_macos_version_at_least(version: NSOperatingSystemVersion) -> bool {
1575 unsafe { NSProcessInfo::processInfo(nil).isOperatingSystemAtLeastVersion(version) }
1576}
1577
1578extern "C" fn window_did_move(this: &Object, _: Sel, _: id) {
1579 let window_state = unsafe { get_window_state(this) };
1580 let mut lock = window_state.as_ref().lock();
1581 if let Some(mut callback) = lock.moved_callback.take() {
1582 drop(lock);
1583 callback();
1584 window_state.lock().moved_callback = Some(callback);
1585 }
1586}
1587
1588extern "C" fn window_did_change_screen(this: &Object, _: Sel, _: id) {
1589 let window_state = unsafe { get_window_state(this) };
1590 let mut lock = window_state.as_ref().lock();
1591 lock.start_display_link();
1592}
1593
1594extern "C" fn window_did_change_key_status(this: &Object, selector: Sel, _: id) {
1595 let window_state = unsafe { get_window_state(this) };
1596 let lock = window_state.lock();
1597 let is_active = unsafe { lock.native_window.isKeyWindow() == YES };
1598
1599 // When opening a pop-up while the application isn't active, Cocoa sends a spurious
1600 // `windowDidBecomeKey` message to the previous key window even though that window
1601 // isn't actually key. This causes a bug if the application is later activated while
1602 // the pop-up is still open, making it impossible to activate the previous key window
1603 // even if the pop-up gets closed. The only way to activate it again is to de-activate
1604 // the app and re-activate it, which is a pretty bad UX.
1605 // The following code detects the spurious event and invokes `resignKeyWindow`:
1606 // in theory, we're not supposed to invoke this method manually but it balances out
1607 // the spurious `becomeKeyWindow` event and helps us work around that bug.
1608 if selector == sel!(windowDidBecomeKey:) && !is_active {
1609 unsafe {
1610 let _: () = msg_send![lock.native_window, resignKeyWindow];
1611 return;
1612 }
1613 }
1614
1615 let executor = lock.executor.clone();
1616 drop(lock);
1617 executor
1618 .spawn(async move {
1619 let mut lock = window_state.as_ref().lock();
1620 if let Some(mut callback) = lock.activate_callback.take() {
1621 drop(lock);
1622 callback(is_active);
1623 window_state.lock().activate_callback = Some(callback);
1624 };
1625 })
1626 .detach();
1627}
1628
1629extern "C" fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL {
1630 let window_state = unsafe { get_window_state(this) };
1631 let mut lock = window_state.as_ref().lock();
1632 if let Some(mut callback) = lock.should_close_callback.take() {
1633 drop(lock);
1634 let should_close = callback();
1635 window_state.lock().should_close_callback = Some(callback);
1636 should_close as BOOL
1637 } else {
1638 YES
1639 }
1640}
1641
1642extern "C" fn close_window(this: &Object, _: Sel) {
1643 unsafe {
1644 let close_callback = {
1645 let window_state = get_window_state(this);
1646 let mut lock = window_state.as_ref().lock();
1647 lock.close_callback.take()
1648 };
1649
1650 if let Some(callback) = close_callback {
1651 callback();
1652 }
1653
1654 let _: () = msg_send![super(this, class!(NSWindow)), close];
1655 }
1656}
1657
1658extern "C" fn make_backing_layer(this: &Object, _: Sel) -> id {
1659 let window_state = unsafe { get_window_state(this) };
1660 let window_state = window_state.as_ref().lock();
1661 window_state.renderer.layer_ptr() as id
1662}
1663
1664extern "C" fn view_did_change_backing_properties(this: &Object, _: Sel) {
1665 let window_state = unsafe { get_window_state(this) };
1666 let mut lock = window_state.as_ref().lock();
1667
1668 let scale_factor = lock.scale_factor();
1669 let size = lock.content_size();
1670 let drawable_size = size.to_device_pixels(scale_factor);
1671 unsafe {
1672 let _: () = msg_send![
1673 lock.renderer.layer(),
1674 setContentsScale: scale_factor as f64
1675 ];
1676 }
1677
1678 lock.renderer.update_drawable_size(drawable_size);
1679
1680 if let Some(mut callback) = lock.resize_callback.take() {
1681 let content_size = lock.content_size();
1682 let scale_factor = lock.scale_factor();
1683 drop(lock);
1684 callback(content_size, scale_factor);
1685 window_state.as_ref().lock().resize_callback = Some(callback);
1686 };
1687}
1688
1689extern "C" fn set_frame_size(this: &Object, _: Sel, size: NSSize) {
1690 let window_state = unsafe { get_window_state(this) };
1691 let mut lock = window_state.as_ref().lock();
1692
1693 let new_size = Size::<Pixels>::from(size);
1694 if lock.content_size() == new_size {
1695 return;
1696 }
1697
1698 unsafe {
1699 let _: () = msg_send![super(this, class!(NSView)), setFrameSize: size];
1700 }
1701
1702 let scale_factor = lock.scale_factor();
1703 let drawable_size = new_size.to_device_pixels(scale_factor);
1704 lock.renderer.update_drawable_size(drawable_size);
1705
1706 if let Some(mut callback) = lock.resize_callback.take() {
1707 let content_size = lock.content_size();
1708 let scale_factor = lock.scale_factor();
1709 drop(lock);
1710 callback(content_size, scale_factor);
1711 window_state.lock().resize_callback = Some(callback);
1712 };
1713}
1714
1715extern "C" fn display_layer(this: &Object, _: Sel, _: id) {
1716 let window_state = unsafe { get_window_state(this) };
1717 let mut lock = window_state.lock();
1718 if let Some(mut callback) = lock.request_frame_callback.take() {
1719 #[cfg(not(feature = "macos-blade"))]
1720 lock.renderer.set_presents_with_transaction(true);
1721 lock.stop_display_link();
1722 drop(lock);
1723 callback(Default::default());
1724
1725 let mut lock = window_state.lock();
1726 lock.request_frame_callback = Some(callback);
1727 #[cfg(not(feature = "macos-blade"))]
1728 lock.renderer.set_presents_with_transaction(false);
1729 lock.start_display_link();
1730 }
1731}
1732
1733unsafe extern "C" fn step(view: *mut c_void) {
1734 let view = view as id;
1735 let window_state = unsafe { get_window_state(&*view) };
1736 let mut lock = window_state.lock();
1737
1738 if let Some(mut callback) = lock.request_frame_callback.take() {
1739 drop(lock);
1740 callback(Default::default());
1741 window_state.lock().request_frame_callback = Some(callback);
1742 }
1743}
1744
1745extern "C" fn valid_attributes_for_marked_text(_: &Object, _: Sel) -> id {
1746 unsafe { msg_send![class!(NSArray), array] }
1747}
1748
1749extern "C" fn has_marked_text(this: &Object, _: Sel) -> BOOL {
1750 let has_marked_text_result =
1751 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
1752
1753 has_marked_text_result.is_some() as BOOL
1754}
1755
1756extern "C" fn marked_range(this: &Object, _: Sel) -> NSRange {
1757 let marked_range_result =
1758 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
1759
1760 marked_range_result.map_or(NSRange::invalid(), |range| range.into())
1761}
1762
1763extern "C" fn selected_range(this: &Object, _: Sel) -> NSRange {
1764 let selected_range_result = with_input_handler(this, |input_handler| {
1765 input_handler.selected_text_range(false)
1766 })
1767 .flatten();
1768
1769 selected_range_result.map_or(NSRange::invalid(), |selection| selection.range.into())
1770}
1771
1772extern "C" fn first_rect_for_character_range(
1773 this: &Object,
1774 _: Sel,
1775 range: NSRange,
1776 _: id,
1777) -> NSRect {
1778 let frame = get_frame(this);
1779 with_input_handler(this, |input_handler| {
1780 input_handler.bounds_for_range(range.to_range()?)
1781 })
1782 .flatten()
1783 .map_or(
1784 NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.)),
1785 |bounds| {
1786 NSRect::new(
1787 NSPoint::new(
1788 frame.origin.x + bounds.origin.x.0 as f64,
1789 frame.origin.y + frame.size.height
1790 - bounds.origin.y.0 as f64
1791 - bounds.size.height.0 as f64,
1792 ),
1793 NSSize::new(bounds.size.width.0 as f64, bounds.size.height.0 as f64),
1794 )
1795 },
1796 )
1797}
1798
1799fn get_frame(this: &Object) -> NSRect {
1800 unsafe {
1801 let state = get_window_state(this);
1802 let lock = state.lock();
1803 let mut frame = NSWindow::frame(lock.native_window);
1804 let content_layout_rect: CGRect = msg_send![lock.native_window, contentLayoutRect];
1805 let style_mask: NSWindowStyleMask = msg_send![lock.native_window, styleMask];
1806 if !style_mask.contains(NSWindowStyleMask::NSFullSizeContentViewWindowMask) {
1807 frame.origin.y -= frame.size.height - content_layout_rect.size.height;
1808 }
1809 frame
1810 }
1811}
1812
1813extern "C" fn insert_text(this: &Object, _: Sel, text: id, replacement_range: NSRange) {
1814 unsafe {
1815 let is_attributed_string: BOOL =
1816 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
1817 let text: id = if is_attributed_string == YES {
1818 msg_send![text, string]
1819 } else {
1820 text
1821 };
1822
1823 let text = text.to_str();
1824 let replacement_range = replacement_range.to_range();
1825 with_input_handler(this, |input_handler| {
1826 input_handler.replace_text_in_range(replacement_range, &text)
1827 });
1828 }
1829}
1830
1831extern "C" fn set_marked_text(
1832 this: &Object,
1833 _: Sel,
1834 text: id,
1835 selected_range: NSRange,
1836 replacement_range: NSRange,
1837) {
1838 unsafe {
1839 let is_attributed_string: BOOL =
1840 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
1841 let text: id = if is_attributed_string == YES {
1842 msg_send![text, string]
1843 } else {
1844 text
1845 };
1846 let selected_range = selected_range.to_range();
1847 let replacement_range = replacement_range.to_range();
1848 let text = text.to_str();
1849 with_input_handler(this, |input_handler| {
1850 input_handler.replace_and_mark_text_in_range(replacement_range, &text, selected_range)
1851 });
1852 }
1853}
1854extern "C" fn unmark_text(this: &Object, _: Sel) {
1855 with_input_handler(this, |input_handler| input_handler.unmark_text());
1856}
1857
1858extern "C" fn attributed_substring_for_proposed_range(
1859 this: &Object,
1860 _: Sel,
1861 range: NSRange,
1862 actual_range: *mut c_void,
1863) -> id {
1864 with_input_handler(this, |input_handler| {
1865 let range = range.to_range()?;
1866 if range.is_empty() {
1867 return None;
1868 }
1869 let mut adjusted: Option<Range<usize>> = None;
1870
1871 let selected_text = input_handler.text_for_range(range.clone(), &mut adjusted)?;
1872 if let Some(adjusted) = adjusted {
1873 if adjusted != range {
1874 unsafe { (actual_range as *mut NSRange).write(NSRange::from(adjusted)) };
1875 }
1876 }
1877 unsafe {
1878 let string: id = msg_send![class!(NSAttributedString), alloc];
1879 let string: id = msg_send![string, initWithString: ns_string(&selected_text)];
1880 Some(string)
1881 }
1882 })
1883 .flatten()
1884 .unwrap_or(nil)
1885}
1886
1887// We ignore which selector it asks us to do because the user may have
1888// bound the shortcut to something else.
1889extern "C" fn do_command_by_selector(this: &Object, _: Sel, _: Sel) {
1890 let state = unsafe { get_window_state(this) };
1891 let mut lock = state.as_ref().lock();
1892 let keystroke = lock.keystroke_for_do_command.take();
1893 let mut event_callback = lock.event_callback.take();
1894 drop(lock);
1895
1896 if let Some((keystroke, mut callback)) = keystroke.zip(event_callback.as_mut()) {
1897 let handled = (callback)(PlatformInput::KeyDown(KeyDownEvent {
1898 keystroke,
1899 is_held: false,
1900 }));
1901 state.as_ref().lock().do_command_handled = Some(!handled.propagate);
1902 }
1903
1904 state.as_ref().lock().event_callback = event_callback;
1905}
1906
1907extern "C" fn view_did_change_effective_appearance(this: &Object, _: Sel) {
1908 unsafe {
1909 let state = get_window_state(this);
1910 let mut lock = state.as_ref().lock();
1911 if let Some(mut callback) = lock.appearance_changed_callback.take() {
1912 drop(lock);
1913 callback();
1914 state.lock().appearance_changed_callback = Some(callback);
1915 }
1916 }
1917}
1918
1919extern "C" fn accepts_first_mouse(this: &Object, _: Sel, _: id) -> BOOL {
1920 let window_state = unsafe { get_window_state(this) };
1921 let mut lock = window_state.as_ref().lock();
1922 lock.first_mouse = true;
1923 YES
1924}
1925
1926extern "C" fn character_index_for_point(this: &Object, _: Sel, position: NSPoint) -> u64 {
1927 let position = screen_point_to_gpui_point(this, position);
1928 with_input_handler(this, |input_handler| {
1929 input_handler.character_index_for_point(position)
1930 })
1931 .flatten()
1932 .map(|index| index as u64)
1933 .unwrap_or(NSNotFound as u64)
1934}
1935
1936fn screen_point_to_gpui_point(this: &Object, position: NSPoint) -> Point<Pixels> {
1937 let frame = get_frame(this);
1938 let window_x = position.x - frame.origin.x;
1939 let window_y = frame.size.height - (position.y - frame.origin.y);
1940 let position = point(px(window_x as f32), px(window_y as f32));
1941 position
1942}
1943
1944extern "C" fn dragging_entered(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
1945 let window_state = unsafe { get_window_state(this) };
1946 let position = drag_event_position(&window_state, dragging_info);
1947 let paths = external_paths_from_event(dragging_info);
1948 if let Some(event) =
1949 paths.map(|paths| PlatformInput::FileDrop(FileDropEvent::Entered { position, paths }))
1950 {
1951 if send_new_event(&window_state, event) {
1952 window_state.lock().external_files_dragged = true;
1953 return NSDragOperationCopy;
1954 }
1955 }
1956 NSDragOperationNone
1957}
1958
1959extern "C" fn dragging_updated(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
1960 let window_state = unsafe { get_window_state(this) };
1961 let position = drag_event_position(&window_state, dragging_info);
1962 if send_new_event(
1963 &window_state,
1964 PlatformInput::FileDrop(FileDropEvent::Pending { position }),
1965 ) {
1966 NSDragOperationCopy
1967 } else {
1968 NSDragOperationNone
1969 }
1970}
1971
1972extern "C" fn dragging_exited(this: &Object, _: Sel, _: id) {
1973 let window_state = unsafe { get_window_state(this) };
1974 send_new_event(
1975 &window_state,
1976 PlatformInput::FileDrop(FileDropEvent::Exited),
1977 );
1978 window_state.lock().external_files_dragged = false;
1979}
1980
1981extern "C" fn perform_drag_operation(this: &Object, _: Sel, dragging_info: id) -> BOOL {
1982 let window_state = unsafe { get_window_state(this) };
1983 let position = drag_event_position(&window_state, dragging_info);
1984 if send_new_event(
1985 &window_state,
1986 PlatformInput::FileDrop(FileDropEvent::Submit { position }),
1987 ) {
1988 YES
1989 } else {
1990 NO
1991 }
1992}
1993
1994fn external_paths_from_event(dragging_info: *mut Object) -> Option<ExternalPaths> {
1995 let mut paths = SmallVec::new();
1996 let pasteboard: id = unsafe { msg_send![dragging_info, draggingPasteboard] };
1997 let filenames = unsafe { NSPasteboard::propertyListForType(pasteboard, NSFilenamesPboardType) };
1998 if filenames == nil {
1999 return None;
2000 }
2001 for file in unsafe { filenames.iter() } {
2002 let path = unsafe {
2003 let f = NSString::UTF8String(file);
2004 CStr::from_ptr(f).to_string_lossy().into_owned()
2005 };
2006 paths.push(PathBuf::from(path))
2007 }
2008 Some(ExternalPaths(paths))
2009}
2010
2011extern "C" fn conclude_drag_operation(this: &Object, _: Sel, _: id) {
2012 let window_state = unsafe { get_window_state(this) };
2013 send_new_event(
2014 &window_state,
2015 PlatformInput::FileDrop(FileDropEvent::Exited),
2016 );
2017}
2018
2019async fn synthetic_drag(
2020 window_state: Weak<Mutex<MacWindowState>>,
2021 drag_id: usize,
2022 event: MouseMoveEvent,
2023) {
2024 loop {
2025 Timer::after(Duration::from_millis(16)).await;
2026 if let Some(window_state) = window_state.upgrade() {
2027 let mut lock = window_state.lock();
2028 if lock.synthetic_drag_counter == drag_id {
2029 if let Some(mut callback) = lock.event_callback.take() {
2030 drop(lock);
2031 callback(PlatformInput::MouseMove(event.clone()));
2032 window_state.lock().event_callback = Some(callback);
2033 }
2034 } else {
2035 break;
2036 }
2037 }
2038 }
2039}
2040
2041fn send_new_event(window_state_lock: &Mutex<MacWindowState>, e: PlatformInput) -> bool {
2042 let window_state = window_state_lock.lock().event_callback.take();
2043 if let Some(mut callback) = window_state {
2044 callback(e);
2045 window_state_lock.lock().event_callback = Some(callback);
2046 true
2047 } else {
2048 false
2049 }
2050}
2051
2052fn drag_event_position(window_state: &Mutex<MacWindowState>, dragging_info: id) -> Point<Pixels> {
2053 let drag_location: NSPoint = unsafe { msg_send![dragging_info, draggingLocation] };
2054 convert_mouse_position(drag_location, window_state.lock().content_size().height)
2055}
2056
2057fn with_input_handler<F, R>(window: &Object, f: F) -> Option<R>
2058where
2059 F: FnOnce(&mut PlatformInputHandler) -> R,
2060{
2061 let window_state = unsafe { get_window_state(window) };
2062 let mut lock = window_state.as_ref().lock();
2063 if let Some(mut input_handler) = lock.input_handler.take() {
2064 drop(lock);
2065 let result = f(&mut input_handler);
2066 window_state.lock().input_handler = Some(input_handler);
2067 Some(result)
2068 } else {
2069 None
2070 }
2071}
2072
2073unsafe fn display_id_for_screen(screen: id) -> CGDirectDisplayID {
2074 unsafe {
2075 let device_description = NSScreen::deviceDescription(screen);
2076 let screen_number_key: id = NSString::alloc(nil).init_str("NSScreenNumber");
2077 let screen_number = device_description.objectForKey_(screen_number_key);
2078 let screen_number: NSUInteger = msg_send![screen_number, unsignedIntegerValue];
2079 screen_number as CGDirectDisplayID
2080 }
2081}