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