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 NSPoint, 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 msg_send![main_window, isKindOfClass: WINDOW_CLASS] {
748 let handle = get_window_state(&*main_window).lock().handle;
749 Some(handle)
750 } else {
751 None
752 }
753 }
754 }
755
756 pub fn ordered_windows() -> Vec<AnyWindowHandle> {
757 unsafe {
758 let app = NSApplication::sharedApplication(nil);
759 let windows: id = msg_send![app, orderedWindows];
760 let count: NSUInteger = msg_send![windows, count];
761
762 let mut window_handles = Vec::new();
763 for i in 0..count {
764 let window: id = msg_send![windows, objectAtIndex:i];
765 if msg_send![window, isKindOfClass: WINDOW_CLASS] {
766 let handle = get_window_state(&*window).lock().handle;
767 window_handles.push(handle);
768 }
769 }
770
771 window_handles
772 }
773 }
774}
775
776impl Drop for MacWindow {
777 fn drop(&mut self) {
778 let mut this = self.0.lock();
779 this.renderer.destroy();
780 let window = this.native_window;
781 this.display_link.take();
782 unsafe {
783 this.native_window.setDelegate_(nil);
784 }
785 this.input_handler.take();
786 this.executor
787 .spawn(async move {
788 unsafe {
789 window.close();
790 window.autorelease();
791 }
792 })
793 .detach();
794 }
795}
796
797impl PlatformWindow for MacWindow {
798 fn bounds(&self) -> Bounds<Pixels> {
799 self.0.as_ref().lock().bounds()
800 }
801
802 fn window_bounds(&self) -> WindowBounds {
803 self.0.as_ref().lock().window_bounds()
804 }
805
806 fn is_maximized(&self) -> bool {
807 self.0.as_ref().lock().is_maximized()
808 }
809
810 fn content_size(&self) -> Size<Pixels> {
811 self.0.as_ref().lock().content_size()
812 }
813
814 fn resize(&mut self, size: Size<Pixels>) {
815 let this = self.0.lock();
816 let window = this.native_window;
817 this.executor
818 .spawn(async move {
819 unsafe {
820 window.setContentSize_(NSSize {
821 width: size.width.0 as f64,
822 height: size.height.0 as f64,
823 });
824 }
825 })
826 .detach();
827 }
828
829 fn scale_factor(&self) -> f32 {
830 self.0.as_ref().lock().scale_factor()
831 }
832
833 fn appearance(&self) -> WindowAppearance {
834 unsafe {
835 let appearance: id = msg_send![self.0.lock().native_window, effectiveAppearance];
836 WindowAppearance::from_native(appearance)
837 }
838 }
839
840 fn display(&self) -> Option<Rc<dyn PlatformDisplay>> {
841 unsafe {
842 let screen = self.0.lock().native_window.screen();
843 let device_description: id = msg_send![screen, deviceDescription];
844 let screen_number: id = NSDictionary::valueForKey_(
845 device_description,
846 NSString::alloc(nil).init_str("NSScreenNumber"),
847 );
848
849 let screen_number: u32 = msg_send![screen_number, unsignedIntValue];
850
851 Some(Rc::new(MacDisplay(screen_number)))
852 }
853 }
854
855 fn mouse_position(&self) -> Point<Pixels> {
856 let position = unsafe {
857 self.0
858 .lock()
859 .native_window
860 .mouseLocationOutsideOfEventStream()
861 };
862 convert_mouse_position(position, self.content_size().height)
863 }
864
865 fn modifiers(&self) -> Modifiers {
866 unsafe {
867 let modifiers: NSEventModifierFlags = msg_send![class!(NSEvent), modifierFlags];
868
869 let control = modifiers.contains(NSEventModifierFlags::NSControlKeyMask);
870 let alt = modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask);
871 let shift = modifiers.contains(NSEventModifierFlags::NSShiftKeyMask);
872 let command = modifiers.contains(NSEventModifierFlags::NSCommandKeyMask);
873 let function = modifiers.contains(NSEventModifierFlags::NSFunctionKeyMask);
874
875 Modifiers {
876 control,
877 alt,
878 shift,
879 platform: command,
880 function,
881 }
882 }
883 }
884
885 fn set_input_handler(&mut self, input_handler: PlatformInputHandler) {
886 self.0.as_ref().lock().input_handler = Some(input_handler);
887 }
888
889 fn take_input_handler(&mut self) -> Option<PlatformInputHandler> {
890 self.0.as_ref().lock().input_handler.take()
891 }
892
893 fn prompt(
894 &self,
895 level: PromptLevel,
896 msg: &str,
897 detail: Option<&str>,
898 answers: &[&str],
899 ) -> Option<oneshot::Receiver<usize>> {
900 // macOs applies overrides to modal window buttons after they are added.
901 // Two most important for this logic are:
902 // * Buttons with "Cancel" title will be displayed as the last buttons in the modal
903 // * Last button added to the modal via `addButtonWithTitle` stays focused
904 // * Focused buttons react on "space"/" " keypresses
905 // * Usage of `keyEquivalent`, `makeFirstResponder` or `setInitialFirstResponder` does not change the focus
906 //
907 // See also https://developer.apple.com/documentation/appkit/nsalert/1524532-addbuttonwithtitle#discussion
908 // ```
909 // By default, the first button has a key equivalent of Return,
910 // any button with a title of “Cancel” has a key equivalent of Escape,
911 // 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).
912 // ```
913 //
914 // To avoid situations when the last element added is "Cancel" and it gets the focus
915 // (hence stealing both ESC and Space shortcuts), we find and add one non-Cancel button
916 // last, so it gets focus and a Space shortcut.
917 // This way, "Save this file? Yes/No/Cancel"-ish modals will get all three buttons mapped with a key.
918 let latest_non_cancel_label = answers
919 .iter()
920 .enumerate()
921 .rev()
922 .find(|(_, label)| **label != "Cancel")
923 .filter(|&(label_index, _)| label_index > 0);
924
925 unsafe {
926 let alert: id = msg_send![class!(NSAlert), alloc];
927 let alert: id = msg_send![alert, init];
928 let alert_style = match level {
929 PromptLevel::Info => 1,
930 PromptLevel::Warning => 0,
931 PromptLevel::Critical => 2,
932 };
933 let _: () = msg_send![alert, setAlertStyle: alert_style];
934 let _: () = msg_send![alert, setMessageText: ns_string(msg)];
935 if let Some(detail) = detail {
936 let _: () = msg_send![alert, setInformativeText: ns_string(detail)];
937 }
938
939 for (ix, answer) in answers
940 .iter()
941 .enumerate()
942 .filter(|&(ix, _)| Some(ix) != latest_non_cancel_label.map(|(ix, _)| ix))
943 {
944 let button: id = msg_send![alert, addButtonWithTitle: ns_string(answer)];
945 let _: () = msg_send![button, setTag: ix as NSInteger];
946 }
947 if let Some((ix, answer)) = latest_non_cancel_label {
948 let button: id = msg_send![alert, addButtonWithTitle: ns_string(answer)];
949 let _: () = msg_send![button, setTag: ix as NSInteger];
950 }
951
952 let (done_tx, done_rx) = oneshot::channel();
953 let done_tx = Cell::new(Some(done_tx));
954 let block = ConcreteBlock::new(move |answer: NSInteger| {
955 if let Some(done_tx) = done_tx.take() {
956 let _ = done_tx.send(answer.try_into().unwrap());
957 }
958 });
959 let block = block.copy();
960 let native_window = self.0.lock().native_window;
961 let executor = self.0.lock().executor.clone();
962 executor
963 .spawn(async move {
964 let _: () = msg_send![
965 alert,
966 beginSheetModalForWindow: native_window
967 completionHandler: block
968 ];
969 })
970 .detach();
971
972 Some(done_rx)
973 }
974 }
975
976 fn activate(&self) {
977 let window = self.0.lock().native_window;
978 let executor = self.0.lock().executor.clone();
979 executor
980 .spawn(async move {
981 unsafe {
982 let _: () = msg_send![window, makeKeyAndOrderFront: nil];
983 }
984 })
985 .detach();
986 }
987
988 fn is_active(&self) -> bool {
989 unsafe { self.0.lock().native_window.isKeyWindow() == YES }
990 }
991
992 // is_hovered is unused on macOS. See Window::is_window_hovered.
993 fn is_hovered(&self) -> bool {
994 false
995 }
996
997 fn set_title(&mut self, title: &str) {
998 unsafe {
999 let app = NSApplication::sharedApplication(nil);
1000 let window = self.0.lock().native_window;
1001 let title = ns_string(title);
1002 let _: () = msg_send![app, changeWindowsItem:window title:title filename:false];
1003 let _: () = msg_send![window, setTitle: title];
1004 self.0.lock().move_traffic_light();
1005 }
1006 }
1007
1008 fn set_app_id(&mut self, _app_id: &str) {}
1009
1010 fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) {
1011 let mut this = self.0.as_ref().lock();
1012 this.renderer
1013 .update_transparency(background_appearance != WindowBackgroundAppearance::Opaque);
1014
1015 let blur_radius = if background_appearance == WindowBackgroundAppearance::Blurred {
1016 80
1017 } else {
1018 0
1019 };
1020 let opaque = if background_appearance == WindowBackgroundAppearance::Opaque {
1021 YES
1022 } else {
1023 NO
1024 };
1025 unsafe {
1026 this.native_window.setOpaque_(opaque);
1027 // Shadows for transparent windows cause artifacts and performance issues
1028 this.native_window.setHasShadow_(opaque);
1029 let clear_color = if opaque == YES {
1030 NSColor::colorWithSRGBRed_green_blue_alpha_(nil, 0f64, 0f64, 0f64, 1f64)
1031 } else {
1032 NSColor::clearColor(nil)
1033 };
1034 this.native_window.setBackgroundColor_(clear_color);
1035 let window_number = this.native_window.windowNumber();
1036 CGSSetWindowBackgroundBlurRadius(CGSMainConnectionID(), window_number, blur_radius);
1037 }
1038 }
1039
1040 fn set_edited(&mut self, edited: bool) {
1041 unsafe {
1042 let window = self.0.lock().native_window;
1043 msg_send![window, setDocumentEdited: edited as BOOL]
1044 }
1045
1046 // Changing the document edited state resets the traffic light position,
1047 // so we have to move it again.
1048 self.0.lock().move_traffic_light();
1049 }
1050
1051 fn show_character_palette(&self) {
1052 let this = self.0.lock();
1053 let window = this.native_window;
1054 this.executor
1055 .spawn(async move {
1056 unsafe {
1057 let app = NSApplication::sharedApplication(nil);
1058 let _: () = msg_send![app, orderFrontCharacterPalette: window];
1059 }
1060 })
1061 .detach();
1062 }
1063
1064 fn minimize(&self) {
1065 let window = self.0.lock().native_window;
1066 unsafe {
1067 window.miniaturize_(nil);
1068 }
1069 }
1070
1071 fn zoom(&self) {
1072 let this = self.0.lock();
1073 let window = this.native_window;
1074 this.executor
1075 .spawn(async move {
1076 unsafe {
1077 window.zoom_(nil);
1078 }
1079 })
1080 .detach();
1081 }
1082
1083 fn toggle_fullscreen(&self) {
1084 let this = self.0.lock();
1085 let window = this.native_window;
1086 this.executor
1087 .spawn(async move {
1088 unsafe {
1089 window.toggleFullScreen_(nil);
1090 }
1091 })
1092 .detach();
1093 }
1094
1095 fn is_fullscreen(&self) -> bool {
1096 let this = self.0.lock();
1097 let window = this.native_window;
1098
1099 unsafe {
1100 window
1101 .styleMask()
1102 .contains(NSWindowStyleMask::NSFullScreenWindowMask)
1103 }
1104 }
1105
1106 fn on_request_frame(&self, callback: Box<dyn FnMut(RequestFrameOptions)>) {
1107 self.0.as_ref().lock().request_frame_callback = Some(callback);
1108 }
1109
1110 fn on_input(&self, callback: Box<dyn FnMut(PlatformInput) -> crate::DispatchEventResult>) {
1111 self.0.as_ref().lock().event_callback = Some(callback);
1112 }
1113
1114 fn on_active_status_change(&self, callback: Box<dyn FnMut(bool)>) {
1115 self.0.as_ref().lock().activate_callback = Some(callback);
1116 }
1117
1118 fn on_hover_status_change(&self, _: Box<dyn FnMut(bool)>) {}
1119
1120 fn on_resize(&self, callback: Box<dyn FnMut(Size<Pixels>, f32)>) {
1121 self.0.as_ref().lock().resize_callback = Some(callback);
1122 }
1123
1124 fn on_moved(&self, callback: Box<dyn FnMut()>) {
1125 self.0.as_ref().lock().moved_callback = Some(callback);
1126 }
1127
1128 fn on_should_close(&self, callback: Box<dyn FnMut() -> bool>) {
1129 self.0.as_ref().lock().should_close_callback = Some(callback);
1130 }
1131
1132 fn on_close(&self, callback: Box<dyn FnOnce()>) {
1133 self.0.as_ref().lock().close_callback = Some(callback);
1134 }
1135
1136 fn on_appearance_changed(&self, callback: Box<dyn FnMut()>) {
1137 self.0.lock().appearance_changed_callback = Some(callback);
1138 }
1139
1140 fn draw(&self, scene: &crate::Scene) {
1141 let mut this = self.0.lock();
1142 this.renderer.draw(scene);
1143 }
1144
1145 fn sprite_atlas(&self) -> Arc<dyn PlatformAtlas> {
1146 self.0.lock().renderer.sprite_atlas().clone()
1147 }
1148
1149 fn gpu_specs(&self) -> Option<crate::GpuSpecs> {
1150 None
1151 }
1152
1153 fn update_ime_position(&self, _bounds: Bounds<ScaledPixels>) {
1154 let executor = self.0.lock().executor.clone();
1155 executor
1156 .spawn(async move {
1157 unsafe {
1158 let input_context: id =
1159 msg_send![class!(NSTextInputContext), currentInputContext];
1160 let _: () = msg_send![input_context, invalidateCharacterCoordinates];
1161 }
1162 })
1163 .detach()
1164 }
1165}
1166
1167impl rwh::HasWindowHandle for MacWindow {
1168 fn window_handle(&self) -> Result<rwh::WindowHandle<'_>, rwh::HandleError> {
1169 // SAFETY: The AppKitWindowHandle is a wrapper around a pointer to an NSView
1170 unsafe {
1171 Ok(rwh::WindowHandle::borrow_raw(rwh::RawWindowHandle::AppKit(
1172 rwh::AppKitWindowHandle::new(self.0.lock().native_view.cast()),
1173 )))
1174 }
1175 }
1176}
1177
1178impl rwh::HasDisplayHandle for MacWindow {
1179 fn display_handle(&self) -> Result<rwh::DisplayHandle<'_>, rwh::HandleError> {
1180 // SAFETY: This is a no-op on macOS
1181 unsafe {
1182 Ok(rwh::DisplayHandle::borrow_raw(
1183 rwh::AppKitDisplayHandle::new().into(),
1184 ))
1185 }
1186 }
1187}
1188
1189fn get_scale_factor(native_window: id) -> f32 {
1190 let factor = unsafe {
1191 let screen: id = msg_send![native_window, screen];
1192 NSScreen::backingScaleFactor(screen) as f32
1193 };
1194
1195 // We are not certain what triggers this, but it seems that sometimes
1196 // this method would return 0 (https://github.com/zed-industries/zed/issues/6412)
1197 // It seems most likely that this would happen if the window has no screen
1198 // (if it is off-screen), though we'd expect to see viewDidChangeBackingProperties before
1199 // it was rendered for real.
1200 // Regardless, attempt to avoid the issue here.
1201 if factor == 0.0 { 2. } else { factor }
1202}
1203
1204unsafe fn get_window_state(object: &Object) -> Arc<Mutex<MacWindowState>> {
1205 unsafe {
1206 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1207 let rc1 = Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1208 let rc2 = rc1.clone();
1209 mem::forget(rc1);
1210 rc2
1211 }
1212}
1213
1214unsafe fn drop_window_state(object: &Object) {
1215 unsafe {
1216 let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR);
1217 Arc::from_raw(raw as *mut Mutex<MacWindowState>);
1218 }
1219}
1220
1221extern "C" fn yes(_: &Object, _: Sel) -> BOOL {
1222 YES
1223}
1224
1225extern "C" fn dealloc_window(this: &Object, _: Sel) {
1226 unsafe {
1227 drop_window_state(this);
1228 let _: () = msg_send![super(this, class!(NSWindow)), dealloc];
1229 }
1230}
1231
1232extern "C" fn dealloc_view(this: &Object, _: Sel) {
1233 unsafe {
1234 drop_window_state(this);
1235 let _: () = msg_send![super(this, class!(NSView)), dealloc];
1236 }
1237}
1238
1239extern "C" fn handle_key_equivalent(this: &Object, _: Sel, native_event: id) -> BOOL {
1240 handle_key_event(this, native_event, true)
1241}
1242
1243extern "C" fn handle_key_down(this: &Object, _: Sel, native_event: id) {
1244 handle_key_event(this, native_event, false);
1245}
1246
1247extern "C" fn handle_key_up(this: &Object, _: Sel, native_event: id) {
1248 handle_key_event(this, native_event, false);
1249}
1250
1251// Things to test if you're modifying this method:
1252// U.S. layout:
1253// - The IME consumes characters like 'j' and 'k', which makes paging through `less` in
1254// the terminal behave incorrectly by default. This behavior should be patched by our
1255// IME integration
1256// - `alt-t` should open the tasks menu
1257// - In vim mode, this keybinding should work:
1258// ```
1259// {
1260// "context": "Editor && vim_mode == insert",
1261// "bindings": {"j j": "vim::NormalBefore"}
1262// }
1263// ```
1264// and typing 'j k' in insert mode with this keybinding should insert the two characters
1265// Brazilian layout:
1266// - `" space` should create an unmarked quote
1267// - `" backspace` should delete the marked quote
1268// - `" "`should create an unmarked quote and a second marked quote
1269// - `" up` should insert a quote, unmark it, and move up one line
1270// - `" cmd-down` should insert a quote, unmark it, and move to the end of the file
1271// - `cmd-ctrl-space` and clicking on an emoji should type it
1272// Czech (QWERTY) layout:
1273// - in vim mode `option-4` should go to end of line (same as $)
1274// Japanese (Romaji) layout:
1275// - type `a i left down up enter enter` should create an unmarked text "愛"
1276extern "C" fn handle_key_event(this: &Object, native_event: id, key_equivalent: bool) -> BOOL {
1277 let window_state = unsafe { get_window_state(this) };
1278 let mut lock = window_state.as_ref().lock();
1279
1280 let window_height = lock.content_size().height;
1281 let event = unsafe { PlatformInput::from_native(native_event, Some(window_height)) };
1282
1283 let Some(event) = event else {
1284 return NO;
1285 };
1286
1287 let run_callback = |event: PlatformInput| -> BOOL {
1288 let mut callback = window_state.as_ref().lock().event_callback.take();
1289 let handled: BOOL = if let Some(callback) = callback.as_mut() {
1290 !callback(event).propagate as BOOL
1291 } else {
1292 NO
1293 };
1294 window_state.as_ref().lock().event_callback = callback;
1295 handled
1296 };
1297
1298 match event {
1299 PlatformInput::KeyDown(mut key_down_event) => {
1300 // For certain keystrokes, macOS will first dispatch a "key equivalent" event.
1301 // If that event isn't handled, it will then dispatch a "key down" event. GPUI
1302 // makes no distinction between these two types of events, so we need to ignore
1303 // the "key down" event if we've already just processed its "key equivalent" version.
1304 if key_equivalent {
1305 lock.last_key_equivalent = Some(key_down_event.clone());
1306 } else if lock.last_key_equivalent.take().as_ref() == Some(&key_down_event) {
1307 return NO;
1308 }
1309
1310 drop(lock);
1311
1312 let is_composing =
1313 with_input_handler(this, |input_handler| input_handler.marked_text_range())
1314 .flatten()
1315 .is_some();
1316
1317 // If we're composing, send the key to the input handler first;
1318 // otherwise we only send to the input handler if we don't have a matching binding.
1319 // The input handler may call `do_command_by_selector` if it doesn't know how to handle
1320 // a key. If it does so, it will return YES so we won't send the key twice.
1321 // We also do this for non-printing keys (like arrow keys and escape) as the IME menu
1322 // may need them even if there is no marked text;
1323 // however we skip keys with control or the input handler adds control-characters to the buffer.
1324 // and keys with function, as the input handler swallows them.
1325 if is_composing
1326 || (key_down_event.keystroke.key_char.is_none()
1327 && !key_down_event.keystroke.modifiers.control
1328 && !key_down_event.keystroke.modifiers.function)
1329 {
1330 {
1331 let mut lock = window_state.as_ref().lock();
1332 lock.keystroke_for_do_command = Some(key_down_event.keystroke.clone());
1333 lock.do_command_handled.take();
1334 drop(lock);
1335 }
1336
1337 let handled: BOOL = unsafe {
1338 let input_context: id = msg_send![this, inputContext];
1339 msg_send![input_context, handleEvent: native_event]
1340 };
1341 window_state.as_ref().lock().keystroke_for_do_command.take();
1342 if let Some(handled) = window_state.as_ref().lock().do_command_handled.take() {
1343 return handled as BOOL;
1344 } else if handled == YES {
1345 return YES;
1346 }
1347
1348 let handled = run_callback(PlatformInput::KeyDown(key_down_event));
1349 return handled;
1350 }
1351
1352 let handled = run_callback(PlatformInput::KeyDown(key_down_event.clone()));
1353 if handled == YES {
1354 return YES;
1355 }
1356
1357 if key_down_event.is_held {
1358 if let Some(key_char) = key_down_event.keystroke.key_char.as_ref() {
1359 let handled = with_input_handler(&this, |input_handler| {
1360 if !input_handler.apple_press_and_hold_enabled() {
1361 input_handler.replace_text_in_range(None, &key_char);
1362 return YES;
1363 }
1364 NO
1365 });
1366 if handled == Some(YES) {
1367 return YES;
1368 }
1369 }
1370 }
1371
1372 // Don't send key equivalents to the input handler,
1373 // or macOS shortcuts like cmd-` will stop working.
1374 if key_equivalent {
1375 return NO;
1376 }
1377
1378 unsafe {
1379 let input_context: id = msg_send![this, inputContext];
1380 msg_send![input_context, handleEvent: native_event]
1381 }
1382 }
1383
1384 PlatformInput::KeyUp(_) => {
1385 drop(lock);
1386 run_callback(event)
1387 }
1388
1389 _ => NO,
1390 }
1391}
1392
1393extern "C" fn handle_view_event(this: &Object, _: Sel, native_event: id) {
1394 let window_state = unsafe { get_window_state(this) };
1395 let weak_window_state = Arc::downgrade(&window_state);
1396 let mut lock = window_state.as_ref().lock();
1397 let window_height = lock.content_size().height;
1398 let event = unsafe { PlatformInput::from_native(native_event, Some(window_height)) };
1399
1400 if let Some(mut event) = event {
1401 match &mut event {
1402 PlatformInput::MouseDown(
1403 event @ MouseDownEvent {
1404 button: MouseButton::Left,
1405 modifiers: Modifiers { control: true, .. },
1406 ..
1407 },
1408 ) => {
1409 // On mac, a ctrl-left click should be handled as a right click.
1410 *event = MouseDownEvent {
1411 button: MouseButton::Right,
1412 modifiers: Modifiers {
1413 control: false,
1414 ..event.modifiers
1415 },
1416 click_count: 1,
1417 ..*event
1418 };
1419 }
1420
1421 // Handles focusing click.
1422 PlatformInput::MouseDown(
1423 event @ MouseDownEvent {
1424 button: MouseButton::Left,
1425 ..
1426 },
1427 ) if (lock.first_mouse) => {
1428 *event = MouseDownEvent {
1429 first_mouse: true,
1430 ..*event
1431 };
1432 lock.first_mouse = false;
1433 }
1434
1435 // Because we map a ctrl-left_down to a right_down -> right_up let's ignore
1436 // the ctrl-left_up to avoid having a mismatch in button down/up events if the
1437 // user is still holding ctrl when releasing the left mouse button
1438 PlatformInput::MouseUp(
1439 event @ MouseUpEvent {
1440 button: MouseButton::Left,
1441 modifiers: Modifiers { control: true, .. },
1442 ..
1443 },
1444 ) => {
1445 *event = MouseUpEvent {
1446 button: MouseButton::Right,
1447 modifiers: Modifiers {
1448 control: false,
1449 ..event.modifiers
1450 },
1451 click_count: 1,
1452 ..*event
1453 };
1454 }
1455
1456 _ => {}
1457 };
1458
1459 match &event {
1460 PlatformInput::MouseDown(_) => {
1461 drop(lock);
1462 unsafe {
1463 let input_context: id = msg_send![this, inputContext];
1464 msg_send![input_context, handleEvent: native_event]
1465 }
1466 lock = window_state.as_ref().lock();
1467 }
1468 PlatformInput::MouseMove(
1469 event @ MouseMoveEvent {
1470 pressed_button: Some(_),
1471 ..
1472 },
1473 ) => {
1474 // Synthetic drag is used for selecting long buffer contents while buffer is being scrolled.
1475 // External file drag and drop is able to emit its own synthetic mouse events which will conflict
1476 // with these ones.
1477 if !lock.external_files_dragged {
1478 lock.synthetic_drag_counter += 1;
1479 let executor = lock.executor.clone();
1480 executor
1481 .spawn(synthetic_drag(
1482 weak_window_state,
1483 lock.synthetic_drag_counter,
1484 event.clone(),
1485 ))
1486 .detach();
1487 }
1488 }
1489
1490 PlatformInput::MouseUp(MouseUpEvent { .. }) => {
1491 lock.synthetic_drag_counter += 1;
1492 }
1493
1494 PlatformInput::ModifiersChanged(ModifiersChangedEvent { modifiers }) => {
1495 // Only raise modifiers changed event when they have actually changed
1496 if let Some(PlatformInput::ModifiersChanged(ModifiersChangedEvent {
1497 modifiers: prev_modifiers,
1498 })) = &lock.previous_modifiers_changed_event
1499 {
1500 if prev_modifiers == modifiers {
1501 return;
1502 }
1503 }
1504
1505 lock.previous_modifiers_changed_event = Some(event.clone());
1506 }
1507
1508 _ => {}
1509 }
1510
1511 if let Some(mut callback) = lock.event_callback.take() {
1512 drop(lock);
1513 callback(event);
1514 window_state.lock().event_callback = Some(callback);
1515 }
1516 }
1517}
1518
1519extern "C" fn window_did_change_occlusion_state(this: &Object, _: Sel, _: id) {
1520 let window_state = unsafe { get_window_state(this) };
1521 let lock = &mut *window_state.lock();
1522 unsafe {
1523 if lock
1524 .native_window
1525 .occlusionState()
1526 .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible)
1527 {
1528 lock.start_display_link();
1529 } else {
1530 lock.stop_display_link();
1531 }
1532 }
1533}
1534
1535extern "C" fn window_did_resize(this: &Object, _: Sel, _: id) {
1536 let window_state = unsafe { get_window_state(this) };
1537 window_state.as_ref().lock().move_traffic_light();
1538}
1539
1540extern "C" fn window_will_enter_fullscreen(this: &Object, _: Sel, _: id) {
1541 let window_state = unsafe { get_window_state(this) };
1542 let mut lock = window_state.as_ref().lock();
1543 lock.fullscreen_restore_bounds = lock.bounds();
1544
1545 if is_macos_version_at_least(15, 3, 0) {
1546 unsafe {
1547 lock.native_window.setTitlebarAppearsTransparent_(NO);
1548 }
1549 }
1550}
1551
1552extern "C" fn window_will_exit_fullscreen(this: &Object, _: Sel, _: id) {
1553 let window_state = unsafe { get_window_state(this) };
1554 let mut lock = window_state.as_ref().lock();
1555
1556 if is_macos_version_at_least(15, 3, 0) && lock.transparent_titlebar {
1557 unsafe {
1558 lock.native_window.setTitlebarAppearsTransparent_(YES);
1559 }
1560 }
1561}
1562
1563#[repr(C)]
1564struct NSOperatingSystemVersion {
1565 major_version: NSInteger,
1566 minor_version: NSInteger,
1567 patch_version: NSInteger,
1568}
1569
1570fn is_macos_version_at_least(major: NSInteger, minor: NSInteger, patch: NSInteger) -> bool {
1571 unsafe {
1572 let process_info: id = msg_send![class!(NSProcessInfo), processInfo];
1573 let os_version: NSOperatingSystemVersion = msg_send![process_info, operatingSystemVersion];
1574 (os_version.major_version > major)
1575 || (os_version.major_version == major && os_version.minor_version > minor)
1576 || (os_version.major_version == major
1577 && os_version.minor_version == minor
1578 && os_version.patch_version >= patch)
1579 }
1580}
1581
1582extern "C" fn window_did_move(this: &Object, _: Sel, _: id) {
1583 let window_state = unsafe { get_window_state(this) };
1584 let mut lock = window_state.as_ref().lock();
1585 if let Some(mut callback) = lock.moved_callback.take() {
1586 drop(lock);
1587 callback();
1588 window_state.lock().moved_callback = Some(callback);
1589 }
1590}
1591
1592extern "C" fn window_did_change_screen(this: &Object, _: Sel, _: id) {
1593 let window_state = unsafe { get_window_state(this) };
1594 let mut lock = window_state.as_ref().lock();
1595 lock.start_display_link();
1596}
1597
1598extern "C" fn window_did_change_key_status(this: &Object, selector: Sel, _: id) {
1599 let window_state = unsafe { get_window_state(this) };
1600 let lock = window_state.lock();
1601 let is_active = unsafe { lock.native_window.isKeyWindow() == YES };
1602
1603 // When opening a pop-up while the application isn't active, Cocoa sends a spurious
1604 // `windowDidBecomeKey` message to the previous key window even though that window
1605 // isn't actually key. This causes a bug if the application is later activated while
1606 // the pop-up is still open, making it impossible to activate the previous key window
1607 // even if the pop-up gets closed. The only way to activate it again is to de-activate
1608 // the app and re-activate it, which is a pretty bad UX.
1609 // The following code detects the spurious event and invokes `resignKeyWindow`:
1610 // in theory, we're not supposed to invoke this method manually but it balances out
1611 // the spurious `becomeKeyWindow` event and helps us work around that bug.
1612 if selector == sel!(windowDidBecomeKey:) && !is_active {
1613 unsafe {
1614 let _: () = msg_send![lock.native_window, resignKeyWindow];
1615 return;
1616 }
1617 }
1618
1619 let executor = lock.executor.clone();
1620 drop(lock);
1621 executor
1622 .spawn(async move {
1623 let mut lock = window_state.as_ref().lock();
1624 if let Some(mut callback) = lock.activate_callback.take() {
1625 drop(lock);
1626 callback(is_active);
1627 window_state.lock().activate_callback = Some(callback);
1628 };
1629 })
1630 .detach();
1631}
1632
1633extern "C" fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL {
1634 let window_state = unsafe { get_window_state(this) };
1635 let mut lock = window_state.as_ref().lock();
1636 if let Some(mut callback) = lock.should_close_callback.take() {
1637 drop(lock);
1638 let should_close = callback();
1639 window_state.lock().should_close_callback = Some(callback);
1640 should_close as BOOL
1641 } else {
1642 YES
1643 }
1644}
1645
1646extern "C" fn close_window(this: &Object, _: Sel) {
1647 unsafe {
1648 let close_callback = {
1649 let window_state = get_window_state(this);
1650 let mut lock = window_state.as_ref().lock();
1651 lock.close_callback.take()
1652 };
1653
1654 if let Some(callback) = close_callback {
1655 callback();
1656 }
1657
1658 let _: () = msg_send![super(this, class!(NSWindow)), close];
1659 }
1660}
1661
1662extern "C" fn make_backing_layer(this: &Object, _: Sel) -> id {
1663 let window_state = unsafe { get_window_state(this) };
1664 let window_state = window_state.as_ref().lock();
1665 window_state.renderer.layer_ptr() as id
1666}
1667
1668extern "C" fn view_did_change_backing_properties(this: &Object, _: Sel) {
1669 let window_state = unsafe { get_window_state(this) };
1670 let mut lock = window_state.as_ref().lock();
1671
1672 let scale_factor = lock.scale_factor();
1673 let size = lock.content_size();
1674 let drawable_size = size.to_device_pixels(scale_factor);
1675 unsafe {
1676 let _: () = msg_send![
1677 lock.renderer.layer(),
1678 setContentsScale: scale_factor as f64
1679 ];
1680 }
1681
1682 lock.renderer.update_drawable_size(drawable_size);
1683
1684 if let Some(mut callback) = lock.resize_callback.take() {
1685 let content_size = lock.content_size();
1686 let scale_factor = lock.scale_factor();
1687 drop(lock);
1688 callback(content_size, scale_factor);
1689 window_state.as_ref().lock().resize_callback = Some(callback);
1690 };
1691}
1692
1693extern "C" fn set_frame_size(this: &Object, _: Sel, size: NSSize) {
1694 let window_state = unsafe { get_window_state(this) };
1695 let mut lock = window_state.as_ref().lock();
1696
1697 let new_size = Size::<Pixels>::from(size);
1698 if lock.content_size() == new_size {
1699 return;
1700 }
1701
1702 unsafe {
1703 let _: () = msg_send![super(this, class!(NSView)), setFrameSize: size];
1704 }
1705
1706 let scale_factor = lock.scale_factor();
1707 let drawable_size = new_size.to_device_pixels(scale_factor);
1708 lock.renderer.update_drawable_size(drawable_size);
1709
1710 if let Some(mut callback) = lock.resize_callback.take() {
1711 let content_size = lock.content_size();
1712 let scale_factor = lock.scale_factor();
1713 drop(lock);
1714 callback(content_size, scale_factor);
1715 window_state.lock().resize_callback = Some(callback);
1716 };
1717}
1718
1719extern "C" fn display_layer(this: &Object, _: Sel, _: id) {
1720 let window_state = unsafe { get_window_state(this) };
1721 let mut lock = window_state.lock();
1722 if let Some(mut callback) = lock.request_frame_callback.take() {
1723 #[cfg(not(feature = "macos-blade"))]
1724 lock.renderer.set_presents_with_transaction(true);
1725 lock.stop_display_link();
1726 drop(lock);
1727 callback(Default::default());
1728
1729 let mut lock = window_state.lock();
1730 lock.request_frame_callback = Some(callback);
1731 #[cfg(not(feature = "macos-blade"))]
1732 lock.renderer.set_presents_with_transaction(false);
1733 lock.start_display_link();
1734 }
1735}
1736
1737unsafe extern "C" fn step(view: *mut c_void) {
1738 let view = view as id;
1739 let window_state = unsafe { get_window_state(&*view) };
1740 let mut lock = window_state.lock();
1741
1742 if let Some(mut callback) = lock.request_frame_callback.take() {
1743 drop(lock);
1744 callback(Default::default());
1745 window_state.lock().request_frame_callback = Some(callback);
1746 }
1747}
1748
1749extern "C" fn valid_attributes_for_marked_text(_: &Object, _: Sel) -> id {
1750 unsafe { msg_send![class!(NSArray), array] }
1751}
1752
1753extern "C" fn has_marked_text(this: &Object, _: Sel) -> BOOL {
1754 let has_marked_text_result =
1755 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
1756
1757 has_marked_text_result.is_some() as BOOL
1758}
1759
1760extern "C" fn marked_range(this: &Object, _: Sel) -> NSRange {
1761 let marked_range_result =
1762 with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten();
1763
1764 marked_range_result.map_or(NSRange::invalid(), |range| range.into())
1765}
1766
1767extern "C" fn selected_range(this: &Object, _: Sel) -> NSRange {
1768 let selected_range_result = with_input_handler(this, |input_handler| {
1769 input_handler.selected_text_range(false)
1770 })
1771 .flatten();
1772
1773 selected_range_result.map_or(NSRange::invalid(), |selection| selection.range.into())
1774}
1775
1776extern "C" fn first_rect_for_character_range(
1777 this: &Object,
1778 _: Sel,
1779 range: NSRange,
1780 _: id,
1781) -> NSRect {
1782 let frame = get_frame(this);
1783 with_input_handler(this, |input_handler| {
1784 input_handler.bounds_for_range(range.to_range()?)
1785 })
1786 .flatten()
1787 .map_or(
1788 NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.)),
1789 |bounds| {
1790 NSRect::new(
1791 NSPoint::new(
1792 frame.origin.x + bounds.origin.x.0 as f64,
1793 frame.origin.y + frame.size.height
1794 - bounds.origin.y.0 as f64
1795 - bounds.size.height.0 as f64,
1796 ),
1797 NSSize::new(bounds.size.width.0 as f64, bounds.size.height.0 as f64),
1798 )
1799 },
1800 )
1801}
1802
1803fn get_frame(this: &Object) -> NSRect {
1804 unsafe {
1805 let state = get_window_state(this);
1806 let lock = state.lock();
1807 let mut frame = NSWindow::frame(lock.native_window);
1808 let content_layout_rect: CGRect = msg_send![lock.native_window, contentLayoutRect];
1809 let style_mask: NSWindowStyleMask = msg_send![lock.native_window, styleMask];
1810 if !style_mask.contains(NSWindowStyleMask::NSFullSizeContentViewWindowMask) {
1811 frame.origin.y -= frame.size.height - content_layout_rect.size.height;
1812 }
1813 frame
1814 }
1815}
1816
1817extern "C" fn insert_text(this: &Object, _: Sel, text: id, replacement_range: NSRange) {
1818 unsafe {
1819 let is_attributed_string: BOOL =
1820 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
1821 let text: id = if is_attributed_string == YES {
1822 msg_send![text, string]
1823 } else {
1824 text
1825 };
1826
1827 let text = text.to_str();
1828 let replacement_range = replacement_range.to_range();
1829 with_input_handler(this, |input_handler| {
1830 input_handler.replace_text_in_range(replacement_range, &text)
1831 });
1832 }
1833}
1834
1835extern "C" fn set_marked_text(
1836 this: &Object,
1837 _: Sel,
1838 text: id,
1839 selected_range: NSRange,
1840 replacement_range: NSRange,
1841) {
1842 unsafe {
1843 let is_attributed_string: BOOL =
1844 msg_send![text, isKindOfClass: [class!(NSAttributedString)]];
1845 let text: id = if is_attributed_string == YES {
1846 msg_send![text, string]
1847 } else {
1848 text
1849 };
1850 let selected_range = selected_range.to_range();
1851 let replacement_range = replacement_range.to_range();
1852 let text = text.to_str();
1853 with_input_handler(this, |input_handler| {
1854 input_handler.replace_and_mark_text_in_range(replacement_range, &text, selected_range)
1855 });
1856 }
1857}
1858extern "C" fn unmark_text(this: &Object, _: Sel) {
1859 with_input_handler(this, |input_handler| input_handler.unmark_text());
1860}
1861
1862extern "C" fn attributed_substring_for_proposed_range(
1863 this: &Object,
1864 _: Sel,
1865 range: NSRange,
1866 actual_range: *mut c_void,
1867) -> id {
1868 with_input_handler(this, |input_handler| {
1869 let range = range.to_range()?;
1870 if range.is_empty() {
1871 return None;
1872 }
1873 let mut adjusted: Option<Range<usize>> = None;
1874
1875 let selected_text = input_handler.text_for_range(range.clone(), &mut adjusted)?;
1876 if let Some(adjusted) = adjusted {
1877 if adjusted != range {
1878 unsafe { (actual_range as *mut NSRange).write(NSRange::from(adjusted)) };
1879 }
1880 }
1881 unsafe {
1882 let string: id = msg_send![class!(NSAttributedString), alloc];
1883 let string: id = msg_send![string, initWithString: ns_string(&selected_text)];
1884 Some(string)
1885 }
1886 })
1887 .flatten()
1888 .unwrap_or(nil)
1889}
1890
1891// We ignore which selector it asks us to do because the user may have
1892// bound the shortcut to something else.
1893extern "C" fn do_command_by_selector(this: &Object, _: Sel, _: Sel) {
1894 let state = unsafe { get_window_state(this) };
1895 let mut lock = state.as_ref().lock();
1896 let keystroke = lock.keystroke_for_do_command.take();
1897 let mut event_callback = lock.event_callback.take();
1898 drop(lock);
1899
1900 if let Some((keystroke, mut callback)) = keystroke.zip(event_callback.as_mut()) {
1901 let handled = (callback)(PlatformInput::KeyDown(KeyDownEvent {
1902 keystroke,
1903 is_held: false,
1904 }));
1905 state.as_ref().lock().do_command_handled = Some(!handled.propagate);
1906 }
1907
1908 state.as_ref().lock().event_callback = event_callback;
1909}
1910
1911extern "C" fn view_did_change_effective_appearance(this: &Object, _: Sel) {
1912 unsafe {
1913 let state = get_window_state(this);
1914 let mut lock = state.as_ref().lock();
1915 if let Some(mut callback) = lock.appearance_changed_callback.take() {
1916 drop(lock);
1917 callback();
1918 state.lock().appearance_changed_callback = Some(callback);
1919 }
1920 }
1921}
1922
1923extern "C" fn accepts_first_mouse(this: &Object, _: Sel, _: id) -> BOOL {
1924 let window_state = unsafe { get_window_state(this) };
1925 let mut lock = window_state.as_ref().lock();
1926 lock.first_mouse = true;
1927 YES
1928}
1929
1930extern "C" fn character_index_for_point(this: &Object, _: Sel, position: NSPoint) -> u64 {
1931 let position = screen_point_to_gpui_point(this, position);
1932 with_input_handler(this, |input_handler| {
1933 input_handler.character_index_for_point(position)
1934 })
1935 .flatten()
1936 .map(|index| index as u64)
1937 .unwrap_or(NSNotFound as u64)
1938}
1939
1940fn screen_point_to_gpui_point(this: &Object, position: NSPoint) -> Point<Pixels> {
1941 let frame = get_frame(this);
1942 let window_x = position.x - frame.origin.x;
1943 let window_y = frame.size.height - (position.y - frame.origin.y);
1944 let position = point(px(window_x as f32), px(window_y as f32));
1945 position
1946}
1947
1948extern "C" fn dragging_entered(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
1949 let window_state = unsafe { get_window_state(this) };
1950 let position = drag_event_position(&window_state, dragging_info);
1951 let paths = external_paths_from_event(dragging_info);
1952 if let Some(event) =
1953 paths.map(|paths| PlatformInput::FileDrop(FileDropEvent::Entered { position, paths }))
1954 {
1955 if send_new_event(&window_state, event) {
1956 window_state.lock().external_files_dragged = true;
1957 return NSDragOperationCopy;
1958 }
1959 }
1960 NSDragOperationNone
1961}
1962
1963extern "C" fn dragging_updated(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation {
1964 let window_state = unsafe { get_window_state(this) };
1965 let position = drag_event_position(&window_state, dragging_info);
1966 if send_new_event(
1967 &window_state,
1968 PlatformInput::FileDrop(FileDropEvent::Pending { position }),
1969 ) {
1970 NSDragOperationCopy
1971 } else {
1972 NSDragOperationNone
1973 }
1974}
1975
1976extern "C" fn dragging_exited(this: &Object, _: Sel, _: id) {
1977 let window_state = unsafe { get_window_state(this) };
1978 send_new_event(
1979 &window_state,
1980 PlatformInput::FileDrop(FileDropEvent::Exited),
1981 );
1982 window_state.lock().external_files_dragged = false;
1983}
1984
1985extern "C" fn perform_drag_operation(this: &Object, _: Sel, dragging_info: id) -> BOOL {
1986 let window_state = unsafe { get_window_state(this) };
1987 let position = drag_event_position(&window_state, dragging_info);
1988 if send_new_event(
1989 &window_state,
1990 PlatformInput::FileDrop(FileDropEvent::Submit { position }),
1991 ) {
1992 YES
1993 } else {
1994 NO
1995 }
1996}
1997
1998fn external_paths_from_event(dragging_info: *mut Object) -> Option<ExternalPaths> {
1999 let mut paths = SmallVec::new();
2000 let pasteboard: id = unsafe { msg_send![dragging_info, draggingPasteboard] };
2001 let filenames = unsafe { NSPasteboard::propertyListForType(pasteboard, NSFilenamesPboardType) };
2002 if filenames == nil {
2003 return None;
2004 }
2005 for file in unsafe { filenames.iter() } {
2006 let path = unsafe {
2007 let f = NSString::UTF8String(file);
2008 CStr::from_ptr(f).to_string_lossy().into_owned()
2009 };
2010 paths.push(PathBuf::from(path))
2011 }
2012 Some(ExternalPaths(paths))
2013}
2014
2015extern "C" fn conclude_drag_operation(this: &Object, _: Sel, _: id) {
2016 let window_state = unsafe { get_window_state(this) };
2017 send_new_event(
2018 &window_state,
2019 PlatformInput::FileDrop(FileDropEvent::Exited),
2020 );
2021}
2022
2023async fn synthetic_drag(
2024 window_state: Weak<Mutex<MacWindowState>>,
2025 drag_id: usize,
2026 event: MouseMoveEvent,
2027) {
2028 loop {
2029 Timer::after(Duration::from_millis(16)).await;
2030 if let Some(window_state) = window_state.upgrade() {
2031 let mut lock = window_state.lock();
2032 if lock.synthetic_drag_counter == drag_id {
2033 if let Some(mut callback) = lock.event_callback.take() {
2034 drop(lock);
2035 callback(PlatformInput::MouseMove(event.clone()));
2036 window_state.lock().event_callback = Some(callback);
2037 }
2038 } else {
2039 break;
2040 }
2041 }
2042 }
2043}
2044
2045fn send_new_event(window_state_lock: &Mutex<MacWindowState>, e: PlatformInput) -> bool {
2046 let window_state = window_state_lock.lock().event_callback.take();
2047 if let Some(mut callback) = window_state {
2048 callback(e);
2049 window_state_lock.lock().event_callback = Some(callback);
2050 true
2051 } else {
2052 false
2053 }
2054}
2055
2056fn drag_event_position(window_state: &Mutex<MacWindowState>, dragging_info: id) -> Point<Pixels> {
2057 let drag_location: NSPoint = unsafe { msg_send![dragging_info, draggingLocation] };
2058 convert_mouse_position(drag_location, window_state.lock().content_size().height)
2059}
2060
2061fn with_input_handler<F, R>(window: &Object, f: F) -> Option<R>
2062where
2063 F: FnOnce(&mut PlatformInputHandler) -> R,
2064{
2065 let window_state = unsafe { get_window_state(window) };
2066 let mut lock = window_state.as_ref().lock();
2067 if let Some(mut input_handler) = lock.input_handler.take() {
2068 drop(lock);
2069 let result = f(&mut input_handler);
2070 window_state.lock().input_handler = Some(input_handler);
2071 Some(result)
2072 } else {
2073 None
2074 }
2075}
2076
2077unsafe fn display_id_for_screen(screen: id) -> CGDirectDisplayID {
2078 unsafe {
2079 let device_description = NSScreen::deviceDescription(screen);
2080 let screen_number_key: id = NSString::alloc(nil).init_str("NSScreenNumber");
2081 let screen_number = device_description.objectForKey_(screen_number_key);
2082 let screen_number: NSUInteger = msg_send![screen_number, unsignedIntegerValue];
2083 screen_number as CGDirectDisplayID
2084 }
2085}