use crate::{ BoolExt, DisplayLink, MacDisplay, NSRange, NSStringExt, TISCopyCurrentKeyboardInputSource, TISGetInputSourceProperty, events::platform_input_from_native, kTISPropertyInputSourceIsASCIICapable, kTISPropertyInputSourceType, kTISTypeKeyboardInputMode, ns_string, renderer, }; #[cfg(any(test, feature = "test-support"))] use anyhow::Result; use block::ConcreteBlock; use cocoa::{ appkit::{ NSAppKitVersionNumber, NSAppKitVersionNumber12_0, NSApplication, NSBackingStoreBuffered, NSColor, NSEvent, NSEventModifierFlags, NSFilenamesPboardType, NSPasteboard, NSScreen, NSView, NSViewHeightSizable, NSViewWidthSizable, NSVisualEffectMaterial, NSVisualEffectState, NSVisualEffectView, NSWindow, NSWindowButton, NSWindowCollectionBehavior, NSWindowOcclusionState, NSWindowOrderingMode, NSWindowStyleMask, NSWindowTitleVisibility, }, base::{id, nil}, foundation::{ NSArray, NSAutoreleasePool, NSDictionary, NSFastEnumeration, NSInteger, NSNotFound, NSOperatingSystemVersion, NSPoint, NSProcessInfo, NSRect, NSSize, NSString, NSUInteger, NSUserDefaults, }, }; use dispatch2::DispatchQueue; use gpui::{ AnyWindowHandle, BackgroundExecutor, Bounds, Capslock, ExternalPaths, FileDropEvent, ForegroundExecutor, KeyDownEvent, Keystroke, Modifiers, ModifiersChangedEvent, MouseButton, MouseDownEvent, MouseMoveEvent, MouseUpEvent, Pixels, PlatformAtlas, PlatformDisplay, PlatformInput, PlatformInputHandler, PlatformWindow, Point, PromptButton, PromptLevel, RequestFrameOptions, SharedString, Size, SystemWindowTab, WindowAppearance, WindowBackgroundAppearance, WindowBounds, WindowControlArea, WindowKind, WindowParams, point, px, size, }; #[cfg(any(test, feature = "test-support"))] use image::RgbaImage; use core_foundation::base::{CFRelease, CFTypeRef}; use core_foundation_sys::base::CFEqual; use core_foundation_sys::number::{CFBooleanGetValue, CFBooleanRef}; use core_graphics::display::{CGDirectDisplayID, CGPoint, CGRect}; use ctor::ctor; use futures::channel::oneshot; use objc::{ class, declare::ClassDecl, msg_send, runtime::{BOOL, Class, NO, Object, Protocol, Sel, YES}, sel, sel_impl, }; use objc2_app_kit::NSBeep; use parking_lot::Mutex; use raw_window_handle as rwh; use smallvec::SmallVec; use std::{ cell::Cell, ffi::{CStr, c_void}, mem, ops::Range, path::PathBuf, ptr::{self, NonNull}, rc::Rc, sync::{ Arc, Weak, atomic::{AtomicBool, Ordering}, }, time::Duration, }; use util::ResultExt; const WINDOW_STATE_IVAR: &str = "windowState"; static mut WINDOW_CLASS: *const Class = ptr::null(); static mut PANEL_CLASS: *const Class = ptr::null(); static mut VIEW_CLASS: *const Class = ptr::null(); static mut BLURRED_VIEW_CLASS: *const Class = ptr::null(); #[allow(non_upper_case_globals)] const NSWindowStyleMaskNonactivatingPanel: NSWindowStyleMask = NSWindowStyleMask::from_bits_retain(1 << 7); // WindowLevel const value ref: https://docs.rs/core-graphics2/0.4.1/src/core_graphics2/window_level.rs.html #[allow(non_upper_case_globals)] const NSNormalWindowLevel: NSInteger = 0; #[allow(non_upper_case_globals)] const NSFloatingWindowLevel: NSInteger = 3; #[allow(non_upper_case_globals)] const NSPopUpWindowLevel: NSInteger = 101; #[allow(non_upper_case_globals)] const NSTrackingMouseEnteredAndExited: NSUInteger = 0x01; #[allow(non_upper_case_globals)] const NSTrackingMouseMoved: NSUInteger = 0x02; #[allow(non_upper_case_globals)] const NSTrackingActiveAlways: NSUInteger = 0x80; #[allow(non_upper_case_globals)] const NSTrackingInVisibleRect: NSUInteger = 0x200; #[allow(non_upper_case_globals)] const NSWindowAnimationBehaviorUtilityWindow: NSInteger = 4; #[allow(non_upper_case_globals)] const NSViewLayerContentsRedrawDuringViewResize: NSInteger = 2; // https://developer.apple.com/documentation/appkit/nsdragoperation type NSDragOperation = NSUInteger; #[allow(non_upper_case_globals)] const NSDragOperationNone: NSDragOperation = 0; #[allow(non_upper_case_globals)] const NSDragOperationCopy: NSDragOperation = 1; #[derive(PartialEq)] pub enum UserTabbingPreference { Never, Always, InFullScreen, } #[link(name = "CoreGraphics", kind = "framework")] unsafe extern "C" { // Widely used private APIs; Apple uses them for their Terminal.app. fn CGSMainConnectionID() -> id; fn CGSSetWindowBackgroundBlurRadius( connection_id: id, window_id: NSInteger, radius: i64, ) -> i32; } #[ctor] unsafe fn build_classes() { unsafe { WINDOW_CLASS = build_window_class("GPUIWindow", class!(NSWindow)); PANEL_CLASS = build_window_class("GPUIPanel", class!(NSPanel)); VIEW_CLASS = { let mut decl = ClassDecl::new("GPUIView", class!(NSView)).unwrap(); decl.add_ivar::<*mut c_void>(WINDOW_STATE_IVAR); unsafe { decl.add_method(sel!(dealloc), dealloc_view as extern "C" fn(&Object, Sel)); decl.add_method( sel!(performKeyEquivalent:), handle_key_equivalent as extern "C" fn(&Object, Sel, id) -> BOOL, ); decl.add_method( sel!(keyDown:), handle_key_down as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(keyUp:), handle_key_up as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(mouseDown:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(mouseUp:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(rightMouseDown:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(rightMouseUp:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(otherMouseDown:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(otherMouseUp:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(mouseMoved:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(pressureChangeWithEvent:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(mouseExited:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(magnifyWithEvent:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(mouseDragged:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(rightMouseDragged:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(otherMouseDragged:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(scrollWheel:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(swipeWithEvent:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(flagsChanged:), handle_view_event as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(makeBackingLayer), make_backing_layer as extern "C" fn(&Object, Sel) -> id, ); decl.add_protocol(Protocol::get("CALayerDelegate").unwrap()); decl.add_method( sel!(viewDidChangeBackingProperties), view_did_change_backing_properties as extern "C" fn(&Object, Sel), ); decl.add_method( sel!(setFrameSize:), set_frame_size as extern "C" fn(&Object, Sel, NSSize), ); decl.add_method( sel!(displayLayer:), display_layer as extern "C" fn(&Object, Sel, id), ); decl.add_protocol(Protocol::get("NSTextInputClient").unwrap()); decl.add_method( sel!(validAttributesForMarkedText), valid_attributes_for_marked_text as extern "C" fn(&Object, Sel) -> id, ); decl.add_method( sel!(hasMarkedText), has_marked_text as extern "C" fn(&Object, Sel) -> BOOL, ); decl.add_method( sel!(markedRange), marked_range as extern "C" fn(&Object, Sel) -> NSRange, ); decl.add_method( sel!(selectedRange), selected_range as extern "C" fn(&Object, Sel) -> NSRange, ); decl.add_method( sel!(firstRectForCharacterRange:actualRange:), first_rect_for_character_range as extern "C" fn(&Object, Sel, NSRange, id) -> NSRect, ); decl.add_method( sel!(insertText:replacementRange:), insert_text as extern "C" fn(&Object, Sel, id, NSRange), ); decl.add_method( sel!(setMarkedText:selectedRange:replacementRange:), set_marked_text as extern "C" fn(&Object, Sel, id, NSRange, NSRange), ); decl.add_method(sel!(unmarkText), unmark_text as extern "C" fn(&Object, Sel)); decl.add_method( sel!(attributedSubstringForProposedRange:actualRange:), attributed_substring_for_proposed_range as extern "C" fn(&Object, Sel, NSRange, *mut c_void) -> id, ); decl.add_method( sel!(viewDidChangeEffectiveAppearance), view_did_change_effective_appearance as extern "C" fn(&Object, Sel), ); // Suppress beep on keystrokes with modifier keys. decl.add_method( sel!(doCommandBySelector:), do_command_by_selector as extern "C" fn(&Object, Sel, Sel), ); decl.add_method( sel!(acceptsFirstMouse:), accepts_first_mouse as extern "C" fn(&Object, Sel, id) -> BOOL, ); decl.add_method( sel!(characterIndexForPoint:), character_index_for_point as extern "C" fn(&Object, Sel, NSPoint) -> u64, ); } decl.register() }; BLURRED_VIEW_CLASS = { let mut decl = ClassDecl::new("BlurredView", class!(NSVisualEffectView)).unwrap(); unsafe { decl.add_method( sel!(initWithFrame:), blurred_view_init_with_frame as extern "C" fn(&Object, Sel, NSRect) -> id, ); decl.add_method( sel!(updateLayer), blurred_view_update_layer as extern "C" fn(&Object, Sel), ); decl.register() } }; } } pub(crate) fn convert_mouse_position(position: NSPoint, window_height: Pixels) -> Point { point( px(position.x as f32), // macOS screen coordinates are relative to bottom left window_height - px(position.y as f32), ) } unsafe fn build_window_class(name: &'static str, superclass: &Class) -> *const Class { unsafe { let mut decl = ClassDecl::new(name, superclass).unwrap(); decl.add_ivar::<*mut c_void>(WINDOW_STATE_IVAR); decl.add_method(sel!(dealloc), dealloc_window as extern "C" fn(&Object, Sel)); decl.add_method( sel!(canBecomeMainWindow), yes as extern "C" fn(&Object, Sel) -> BOOL, ); decl.add_method( sel!(canBecomeKeyWindow), yes as extern "C" fn(&Object, Sel) -> BOOL, ); decl.add_method( sel!(windowDidResize:), window_did_resize as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(windowDidChangeOcclusionState:), window_did_change_occlusion_state as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(windowWillEnterFullScreen:), window_will_enter_fullscreen as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(windowWillExitFullScreen:), window_will_exit_fullscreen as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(windowDidMove:), window_did_move as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(windowDidChangeScreen:), window_did_change_screen as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(windowDidBecomeKey:), window_did_change_key_status as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(windowDidResignKey:), window_did_change_key_status as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(windowShouldClose:), window_should_close as extern "C" fn(&Object, Sel, id) -> BOOL, ); decl.add_method(sel!(close), close_window as extern "C" fn(&Object, Sel)); decl.add_method( sel!(draggingEntered:), dragging_entered as extern "C" fn(&Object, Sel, id) -> NSDragOperation, ); decl.add_method( sel!(draggingUpdated:), dragging_updated as extern "C" fn(&Object, Sel, id) -> NSDragOperation, ); decl.add_method( sel!(draggingExited:), dragging_exited as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(performDragOperation:), perform_drag_operation as extern "C" fn(&Object, Sel, id) -> BOOL, ); decl.add_method( sel!(concludeDragOperation:), conclude_drag_operation as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(addTitlebarAccessoryViewController:), add_titlebar_accessory_view_controller as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(moveTabToNewWindow:), move_tab_to_new_window as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(mergeAllWindows:), merge_all_windows as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(selectNextTab:), select_next_tab as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(selectPreviousTab:), select_previous_tab as extern "C" fn(&Object, Sel, id), ); decl.add_method( sel!(toggleTabBar:), toggle_tab_bar as extern "C" fn(&Object, Sel, id), ); decl.register() } } struct MacWindowState { handle: AnyWindowHandle, foreground_executor: ForegroundExecutor, background_executor: BackgroundExecutor, native_window: id, native_view: NonNull, blurred_view: Option, background_appearance: WindowBackgroundAppearance, display_link: Option, renderer: renderer::Renderer, request_frame_callback: Option>, event_callback: Option gpui::DispatchEventResult>>, activate_callback: Option>, resize_callback: Option, f32)>>, moved_callback: Option>, should_close_callback: Option bool>>, close_callback: Option>, appearance_changed_callback: Option>, input_handler: Option, last_key_equivalent: Option, synthetic_drag_counter: usize, traffic_light_position: Option>, transparent_titlebar: bool, previous_modifiers_changed_event: Option, keystroke_for_do_command: Option, do_command_handled: Option, external_files_dragged: bool, // Whether the next left-mouse click is also the focusing click. first_mouse: bool, fullscreen_restore_bounds: Bounds, move_tab_to_new_window_callback: Option>, merge_all_windows_callback: Option>, select_next_tab_callback: Option>, select_previous_tab_callback: Option>, toggle_tab_bar_callback: Option>, activated_least_once: bool, closed: Arc, // The parent window if this window is a sheet (Dialog kind) sheet_parent: Option, } impl MacWindowState { fn move_traffic_light(&self) { if let Some(traffic_light_position) = self.traffic_light_position { if self.is_fullscreen() { // Moving traffic lights while fullscreen doesn't work, // see https://github.com/zed-industries/zed/issues/4712 return; } let titlebar_height = self.titlebar_height(); unsafe { let close_button: id = msg_send![ self.native_window, standardWindowButton: NSWindowButton::NSWindowCloseButton ]; let min_button: id = msg_send![ self.native_window, standardWindowButton: NSWindowButton::NSWindowMiniaturizeButton ]; let zoom_button: id = msg_send![ self.native_window, standardWindowButton: NSWindowButton::NSWindowZoomButton ]; let mut close_button_frame: CGRect = msg_send![close_button, frame]; let mut min_button_frame: CGRect = msg_send![min_button, frame]; let mut zoom_button_frame: CGRect = msg_send![zoom_button, frame]; let mut origin = point( traffic_light_position.x, titlebar_height - traffic_light_position.y - px(close_button_frame.size.height as f32), ); let button_spacing = px((min_button_frame.origin.x - close_button_frame.origin.x) as f32); close_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into()); let _: () = msg_send![close_button, setFrame: close_button_frame]; origin.x += button_spacing; min_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into()); let _: () = msg_send![min_button, setFrame: min_button_frame]; origin.x += button_spacing; zoom_button_frame.origin = CGPoint::new(origin.x.into(), origin.y.into()); let _: () = msg_send![zoom_button, setFrame: zoom_button_frame]; origin.x += button_spacing; } } } fn start_display_link(&mut self) { self.stop_display_link(); unsafe { if !self .native_window .occlusionState() .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible) { return; } } let display_id = unsafe { display_id_for_screen(self.native_window.screen()) }; if let Some(mut display_link) = DisplayLink::new(display_id, self.native_view.as_ptr() as *mut c_void, step).log_err() { display_link.start().log_err(); self.display_link = Some(display_link); } } fn stop_display_link(&mut self) { self.display_link = None; } fn is_maximized(&self) -> bool { fn rect_to_size(rect: NSRect) -> Size { let NSSize { width, height } = rect.size; size(width.into(), height.into()) } unsafe { let bounds = self.bounds(); let screen_size = rect_to_size(self.native_window.screen().visibleFrame()); bounds.size == screen_size } } fn is_fullscreen(&self) -> bool { unsafe { let style_mask = self.native_window.styleMask(); style_mask.contains(NSWindowStyleMask::NSFullScreenWindowMask) } } fn bounds(&self) -> Bounds { let mut window_frame = unsafe { NSWindow::frame(self.native_window) }; let screen = unsafe { NSWindow::screen(self.native_window) }; if screen == nil { return Bounds::new(point(px(0.), px(0.)), gpui::DEFAULT_WINDOW_SIZE); } let screen_frame = unsafe { NSScreen::frame(screen) }; // Flip the y coordinate to be top-left origin window_frame.origin.y = screen_frame.size.height - window_frame.origin.y - window_frame.size.height; Bounds::new( point( px((window_frame.origin.x - screen_frame.origin.x) as f32), px((window_frame.origin.y + screen_frame.origin.y) as f32), ), size( px(window_frame.size.width as f32), px(window_frame.size.height as f32), ), ) } fn content_size(&self) -> Size { let NSSize { width, height, .. } = unsafe { NSView::frame(self.native_window.contentView()) }.size; size(px(width as f32), px(height as f32)) } fn scale_factor(&self) -> f32 { get_scale_factor(self.native_window) } fn titlebar_height(&self) -> Pixels { unsafe { let frame = NSWindow::frame(self.native_window); let content_layout_rect: CGRect = msg_send![self.native_window, contentLayoutRect]; px((frame.size.height - content_layout_rect.size.height) as f32) } } fn window_bounds(&self) -> WindowBounds { if self.is_fullscreen() { WindowBounds::Fullscreen(self.fullscreen_restore_bounds) } else { WindowBounds::Windowed(self.bounds()) } } } unsafe impl Send for MacWindowState {} pub(crate) struct MacWindow(Arc>); impl MacWindow { pub fn open( handle: AnyWindowHandle, WindowParams { bounds, titlebar, kind, is_movable, is_resizable, is_minimizable, focus, show, display_id, window_min_size, tabbing_identifier, }: WindowParams, foreground_executor: ForegroundExecutor, background_executor: BackgroundExecutor, renderer_context: renderer::Context, ) -> Self { unsafe { let pool = NSAutoreleasePool::new(nil); let allows_automatic_window_tabbing = tabbing_identifier.is_some(); if allows_automatic_window_tabbing { let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: YES]; } else { let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: NO]; } let mut style_mask; if let Some(titlebar) = titlebar.as_ref() { style_mask = NSWindowStyleMask::NSClosableWindowMask | NSWindowStyleMask::NSTitledWindowMask; if is_resizable { style_mask |= NSWindowStyleMask::NSResizableWindowMask; } if is_minimizable { style_mask |= NSWindowStyleMask::NSMiniaturizableWindowMask; } if titlebar.appears_transparent { style_mask |= NSWindowStyleMask::NSFullSizeContentViewWindowMask; } } else { style_mask = NSWindowStyleMask::NSTitledWindowMask | NSWindowStyleMask::NSFullSizeContentViewWindowMask; } let native_window: id = match kind { WindowKind::Normal => { msg_send![WINDOW_CLASS, alloc] } WindowKind::PopUp => { style_mask |= NSWindowStyleMaskNonactivatingPanel; msg_send![PANEL_CLASS, alloc] } WindowKind::Floating | WindowKind::Dialog => { msg_send![PANEL_CLASS, alloc] } }; let display = display_id .and_then(MacDisplay::find_by_id) .unwrap_or_else(MacDisplay::primary); let mut target_screen = nil; let mut screen_frame = None; let screens = NSScreen::screens(nil); let count: u64 = cocoa::foundation::NSArray::count(screens); for i in 0..count { let screen = cocoa::foundation::NSArray::objectAtIndex(screens, i); let frame = NSScreen::frame(screen); let display_id = display_id_for_screen(screen); if display_id == display.0 { screen_frame = Some(frame); target_screen = screen; } } let screen_frame = screen_frame.unwrap_or_else(|| { let screen = NSScreen::mainScreen(nil); target_screen = screen; NSScreen::frame(screen) }); let window_rect = NSRect::new( NSPoint::new( screen_frame.origin.x + bounds.origin.x.as_f32() as f64, screen_frame.origin.y + (display.bounds().size.height - bounds.origin.y).as_f32() as f64, ), NSSize::new( bounds.size.width.as_f32() as f64, bounds.size.height.as_f32() as f64, ), ); let native_window = native_window.initWithContentRect_styleMask_backing_defer_screen_( window_rect, style_mask, NSBackingStoreBuffered, NO, target_screen, ); assert!(!native_window.is_null()); let () = msg_send![ native_window, registerForDraggedTypes: NSArray::arrayWithObject(nil, NSFilenamesPboardType) ]; let () = msg_send![ native_window, setReleasedWhenClosed: NO ]; let content_view = native_window.contentView(); let native_view: id = msg_send![VIEW_CLASS, alloc]; let native_view = NSView::initWithFrame_(native_view, NSView::bounds(content_view)); assert!(!native_view.is_null()); let mut window = Self(Arc::new(Mutex::new(MacWindowState { handle, foreground_executor, background_executor, native_window, native_view: NonNull::new_unchecked(native_view), blurred_view: None, background_appearance: WindowBackgroundAppearance::Opaque, display_link: None, renderer: renderer::new_renderer( renderer_context, native_window as *mut _, native_view as *mut _, bounds.size.map(|pixels| pixels.as_f32()), false, ), request_frame_callback: None, event_callback: None, activate_callback: None, resize_callback: None, moved_callback: None, should_close_callback: None, close_callback: None, appearance_changed_callback: None, input_handler: None, last_key_equivalent: None, synthetic_drag_counter: 0, traffic_light_position: titlebar .as_ref() .and_then(|titlebar| titlebar.traffic_light_position), transparent_titlebar: titlebar .as_ref() .is_none_or(|titlebar| titlebar.appears_transparent), previous_modifiers_changed_event: None, keystroke_for_do_command: None, do_command_handled: None, external_files_dragged: false, first_mouse: false, fullscreen_restore_bounds: Bounds::default(), move_tab_to_new_window_callback: None, merge_all_windows_callback: None, select_next_tab_callback: None, select_previous_tab_callback: None, toggle_tab_bar_callback: None, activated_least_once: false, closed: Arc::new(AtomicBool::new(false)), sheet_parent: None, }))); (*native_window).set_ivar( WINDOW_STATE_IVAR, Arc::into_raw(window.0.clone()) as *const c_void, ); native_window.setDelegate_(native_window); (*native_view).set_ivar( WINDOW_STATE_IVAR, Arc::into_raw(window.0.clone()) as *const c_void, ); if let Some(title) = titlebar .as_ref() .and_then(|t| t.title.as_ref().map(AsRef::as_ref)) { window.set_title(title); } native_window.setMovable_(is_movable as BOOL); if let Some(window_min_size) = window_min_size { native_window.setContentMinSize_(NSSize { width: window_min_size.width.to_f64(), height: window_min_size.height.to_f64(), }); } if titlebar.is_none_or(|titlebar| titlebar.appears_transparent) { native_window.setTitlebarAppearsTransparent_(YES); native_window.setTitleVisibility_(NSWindowTitleVisibility::NSWindowTitleHidden); } native_view.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable); native_view.setWantsBestResolutionOpenGLSurface_(YES); // From winit crate: On Mojave, views automatically become layer-backed shortly after // being added to a native_window. Changing the layer-backedness of a view breaks the // association between the view and its associated OpenGL context. To work around this, // on we explicitly make the view layer-backed up front so that AppKit doesn't do it // itself and break the association with its context. native_view.setWantsLayer(YES); let _: () = msg_send![ native_view, setLayerContentsRedrawPolicy: NSViewLayerContentsRedrawDuringViewResize ]; content_view.addSubview_(native_view.autorelease()); native_window.makeFirstResponder_(native_view); let app: id = NSApplication::sharedApplication(nil); let main_window: id = msg_send![app, mainWindow]; let mut sheet_parent = None; match kind { WindowKind::Normal | WindowKind::Floating => { if kind == WindowKind::Floating { // Let the window float keep above normal windows. native_window.setLevel_(NSFloatingWindowLevel); } else { native_window.setLevel_(NSNormalWindowLevel); } native_window.setAcceptsMouseMovedEvents_(YES); if let Some(tabbing_identifier) = tabbing_identifier { let tabbing_id = ns_string(tabbing_identifier.as_str()); let _: () = msg_send![native_window, setTabbingIdentifier: tabbing_id]; } else { let _: () = msg_send![native_window, setTabbingIdentifier:nil]; } } WindowKind::PopUp => { // Use a tracking area to allow receiving MouseMoved events even when // the window or application aren't active, which is often the case // e.g. for notification windows. let tracking_area: id = msg_send![class!(NSTrackingArea), alloc]; let _: () = msg_send![ tracking_area, initWithRect: NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.)) options: NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved | NSTrackingActiveAlways | NSTrackingInVisibleRect owner: native_view userInfo: nil ]; let _: () = msg_send![native_view, addTrackingArea: tracking_area.autorelease()]; native_window.setLevel_(NSPopUpWindowLevel); let _: () = msg_send![ native_window, setAnimationBehavior: NSWindowAnimationBehaviorUtilityWindow ]; native_window.setCollectionBehavior_( NSWindowCollectionBehavior::NSWindowCollectionBehaviorCanJoinAllSpaces | NSWindowCollectionBehavior::NSWindowCollectionBehaviorFullScreenAuxiliary ); } WindowKind::Dialog => { if !main_window.is_null() { let parent = { let active_sheet: id = msg_send![main_window, attachedSheet]; if active_sheet.is_null() { main_window } else { active_sheet } }; let _: () = msg_send![parent, beginSheet: native_window completionHandler: nil]; sheet_parent = Some(parent); } } } if allows_automatic_window_tabbing && !main_window.is_null() && main_window != native_window { let main_window_is_fullscreen = main_window .styleMask() .contains(NSWindowStyleMask::NSFullScreenWindowMask); let user_tabbing_preference = Self::get_user_tabbing_preference() .unwrap_or(UserTabbingPreference::InFullScreen); let should_add_as_tab = user_tabbing_preference == UserTabbingPreference::Always || user_tabbing_preference == UserTabbingPreference::InFullScreen && main_window_is_fullscreen; if should_add_as_tab { let main_window_can_tab: BOOL = msg_send![main_window, respondsToSelector: sel!(addTabbedWindow:ordered:)]; let main_window_visible: BOOL = msg_send![main_window, isVisible]; if main_window_can_tab == YES && main_window_visible == YES { let _: () = msg_send![main_window, addTabbedWindow: native_window ordered: NSWindowOrderingMode::NSWindowAbove]; // Ensure the window is visible immediately after adding the tab, since the tab bar is updated with a new entry at this point. // Note: Calling orderFront here can break fullscreen mode (makes fullscreen windows exit fullscreen), so only do this if the main window is not fullscreen. if !main_window_is_fullscreen { let _: () = msg_send![native_window, orderFront: nil]; } } } } if focus && show { native_window.makeKeyAndOrderFront_(nil); } else if show { native_window.orderFront_(nil); } // Set the initial position of the window to the specified origin. // Although we already specified the position using `initWithContentRect_styleMask_backing_defer_screen_`, // the window position might be incorrect if the main screen (the screen that contains the window that has focus) // is different from the primary screen. NSWindow::setFrameTopLeftPoint_(native_window, window_rect.origin); { let mut window_state = window.0.lock(); window_state.move_traffic_light(); window_state.sheet_parent = sheet_parent; } pool.drain(); window } } pub fn active_window() -> Option { unsafe { let app = NSApplication::sharedApplication(nil); let main_window: id = msg_send![app, mainWindow]; if main_window.is_null() { return None; } if msg_send![main_window, isKindOfClass: WINDOW_CLASS] { let handle = get_window_state(&*main_window).lock().handle; Some(handle) } else { None } } } pub fn ordered_windows() -> Vec { unsafe { let app = NSApplication::sharedApplication(nil); let windows: id = msg_send![app, orderedWindows]; let count: NSUInteger = msg_send![windows, count]; let mut window_handles = Vec::new(); for i in 0..count { let window: id = msg_send![windows, objectAtIndex:i]; if msg_send![window, isKindOfClass: WINDOW_CLASS] { let handle = get_window_state(&*window).lock().handle; window_handles.push(handle); } } window_handles } } pub fn get_user_tabbing_preference() -> Option { unsafe { let defaults: id = NSUserDefaults::standardUserDefaults(); let domain = ns_string("NSGlobalDomain"); let key = ns_string("AppleWindowTabbingMode"); let dict: id = msg_send![defaults, persistentDomainForName: domain]; let value: id = if !dict.is_null() { msg_send![dict, objectForKey: key] } else { nil }; let value_str = if !value.is_null() { CStr::from_ptr(NSString::UTF8String(value)).to_string_lossy() } else { "".into() }; match value_str.as_ref() { "manual" => Some(UserTabbingPreference::Never), "always" => Some(UserTabbingPreference::Always), _ => Some(UserTabbingPreference::InFullScreen), } } } } impl Drop for MacWindow { fn drop(&mut self) { let mut this = self.0.lock(); this.renderer.destroy(); let window = this.native_window; let sheet_parent = this.sheet_parent.take(); this.display_link.take(); unsafe { this.native_window.setDelegate_(nil); } this.input_handler.take(); this.foreground_executor .spawn(async move { unsafe { if let Some(parent) = sheet_parent { let _: () = msg_send![parent, endSheet: window]; } window.close(); window.autorelease(); } }) .detach(); } } /// Calls `f` if the window is not closed. /// /// This should be used when spawning foreground tasks interacting with the /// window, as some messages will end hard faulting if dispatched to no longer /// valid window handles. fn if_window_not_closed(closed: Arc, f: impl FnOnce()) { if !closed.load(Ordering::Acquire) { f(); } } impl PlatformWindow for MacWindow { fn bounds(&self) -> Bounds { self.0.as_ref().lock().bounds() } fn window_bounds(&self) -> WindowBounds { self.0.as_ref().lock().window_bounds() } fn is_maximized(&self) -> bool { self.0.as_ref().lock().is_maximized() } fn content_size(&self) -> Size { self.0.as_ref().lock().content_size() } fn resize(&mut self, size: Size) { let this = self.0.lock(); let window = this.native_window; let closed = this.closed.clone(); this.foreground_executor .spawn(async move { if_window_not_closed(closed, || unsafe { window.setContentSize_(NSSize { width: size.width.as_f32() as f64, height: size.height.as_f32() as f64, }); }) }) .detach(); } fn merge_all_windows(&self) { let native_window = self.0.lock().native_window; extern "C" fn merge_windows_async(context: *mut std::ffi::c_void) { unsafe { let native_window = context as id; let _: () = msg_send![native_window, mergeAllWindows:nil]; } } unsafe { DispatchQueue::main() .exec_async_f(native_window as *mut std::ffi::c_void, merge_windows_async); } } fn move_tab_to_new_window(&self) { let native_window = self.0.lock().native_window; extern "C" fn move_tab_async(context: *mut std::ffi::c_void) { unsafe { let native_window = context as id; let _: () = msg_send![native_window, moveTabToNewWindow:nil]; let _: () = msg_send![native_window, makeKeyAndOrderFront: nil]; } } unsafe { DispatchQueue::main() .exec_async_f(native_window as *mut std::ffi::c_void, move_tab_async); } } fn toggle_window_tab_overview(&self) { let native_window = self.0.lock().native_window; unsafe { let _: () = msg_send![native_window, toggleTabOverview:nil]; } } fn set_tabbing_identifier(&self, tabbing_identifier: Option) { let native_window = self.0.lock().native_window; unsafe { let allows_automatic_window_tabbing = tabbing_identifier.is_some(); if allows_automatic_window_tabbing { let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: YES]; } else { let () = msg_send![class!(NSWindow), setAllowsAutomaticWindowTabbing: NO]; } if let Some(tabbing_identifier) = tabbing_identifier { let tabbing_id = ns_string(tabbing_identifier.as_str()); let _: () = msg_send![native_window, setTabbingIdentifier: tabbing_id]; } else { let _: () = msg_send![native_window, setTabbingIdentifier:nil]; } } } fn scale_factor(&self) -> f32 { self.0.as_ref().lock().scale_factor() } fn appearance(&self) -> WindowAppearance { unsafe { let appearance: id = msg_send![self.0.lock().native_window, effectiveAppearance]; crate::window_appearance::window_appearance_from_native(appearance) } } fn display(&self) -> Option> { unsafe { let screen = self.0.lock().native_window.screen(); if screen.is_null() { return None; } let device_description: id = msg_send![screen, deviceDescription]; let screen_number: id = NSDictionary::valueForKey_(device_description, ns_string("NSScreenNumber")); let screen_number: u32 = msg_send![screen_number, unsignedIntValue]; Some(Rc::new(MacDisplay(screen_number))) } } fn mouse_position(&self) -> Point { let position = unsafe { self.0 .lock() .native_window .mouseLocationOutsideOfEventStream() }; convert_mouse_position(position, self.content_size().height) } fn modifiers(&self) -> Modifiers { unsafe { let modifiers: NSEventModifierFlags = msg_send![class!(NSEvent), modifierFlags]; let control = modifiers.contains(NSEventModifierFlags::NSControlKeyMask); let alt = modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask); let shift = modifiers.contains(NSEventModifierFlags::NSShiftKeyMask); let command = modifiers.contains(NSEventModifierFlags::NSCommandKeyMask); let function = modifiers.contains(NSEventModifierFlags::NSFunctionKeyMask); Modifiers { control, alt, shift, platform: command, function, } } } fn capslock(&self) -> Capslock { unsafe { let modifiers: NSEventModifierFlags = msg_send![class!(NSEvent), modifierFlags]; Capslock { on: modifiers.contains(NSEventModifierFlags::NSAlphaShiftKeyMask), } } } fn set_input_handler(&mut self, input_handler: PlatformInputHandler) { self.0.as_ref().lock().input_handler = Some(input_handler); } fn take_input_handler(&mut self) -> Option { self.0.as_ref().lock().input_handler.take() } fn prompt( &self, level: PromptLevel, msg: &str, detail: Option<&str>, answers: &[PromptButton], ) -> Option> { // macOs applies overrides to modal window buttons after they are added. // Two most important for this logic are: // * Buttons with "Cancel" title will be displayed as the last buttons in the modal // * Last button added to the modal via `addButtonWithTitle` stays focused // * Focused buttons react on "space"/" " keypresses // * Usage of `keyEquivalent`, `makeFirstResponder` or `setInitialFirstResponder` does not change the focus // // See also https://developer.apple.com/documentation/appkit/nsalert/1524532-addbuttonwithtitle#discussion // ``` // By default, the first button has a key equivalent of Return, // any button with a title of “Cancel” has a key equivalent of Escape, // 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). // ``` // // To avoid situations when the last element added is "Cancel" and it gets the focus // (hence stealing both ESC and Space shortcuts), we find and add one non-Cancel button // last, so it gets focus and a Space shortcut. // This way, "Save this file? Yes/No/Cancel"-ish modals will get all three buttons mapped with a key. let latest_non_cancel_label = answers .iter() .enumerate() .rev() .find(|(_, label)| !label.is_cancel()) .filter(|&(label_index, _)| label_index > 0); unsafe { let alert: id = msg_send![class!(NSAlert), alloc]; let alert: id = msg_send![alert, init]; let alert_style = match level { PromptLevel::Info => 1, PromptLevel::Warning => 0, PromptLevel::Critical => 2, }; let _: () = msg_send![alert, setAlertStyle: alert_style]; let _: () = msg_send![alert, setMessageText: ns_string(msg)]; if let Some(detail) = detail { let _: () = msg_send![alert, setInformativeText: ns_string(detail)]; } for (ix, answer) in answers .iter() .enumerate() .filter(|&(ix, _)| Some(ix) != latest_non_cancel_label.map(|(ix, _)| ix)) { let button: id = msg_send![alert, addButtonWithTitle: ns_string(answer.label())]; let _: () = msg_send![button, setTag: ix as NSInteger]; if answer.is_cancel() { // Bind Escape Key to Cancel Button if let Some(key) = std::char::from_u32(crate::events::ESCAPE_KEY as u32) { let _: () = msg_send![button, setKeyEquivalent: ns_string(&key.to_string())]; } } } if let Some((ix, answer)) = latest_non_cancel_label { let button: id = msg_send![alert, addButtonWithTitle: ns_string(answer.label())]; let _: () = msg_send![button, setTag: ix as NSInteger]; } let (done_tx, done_rx) = oneshot::channel(); let done_tx = Cell::new(Some(done_tx)); let block = ConcreteBlock::new(move |answer: NSInteger| { let _: () = msg_send![alert, release]; if let Some(done_tx) = done_tx.take() { let _ = done_tx.send(answer.try_into().unwrap()); } }); let block = block.copy(); let lock = self.0.lock(); let native_window = lock.native_window; let closed = lock.closed.clone(); let executor = lock.foreground_executor.clone(); executor .spawn(async move { if !closed.load(Ordering::Acquire) { let _: () = msg_send![ alert, beginSheetModalForWindow: native_window completionHandler: block ]; } else { let _: () = msg_send![alert, release]; } }) .detach(); Some(done_rx) } } fn activate(&self) { let lock = self.0.lock(); let window = lock.native_window; let closed = lock.closed.clone(); let executor = lock.foreground_executor.clone(); executor .spawn(async move { if !closed.load(Ordering::Acquire) { unsafe { let _: () = msg_send![window, makeKeyAndOrderFront: nil]; } } }) .detach(); } fn is_active(&self) -> bool { unsafe { self.0.lock().native_window.isKeyWindow() == YES } } // is_hovered is unused on macOS. See Window::is_window_hovered. fn is_hovered(&self) -> bool { false } fn set_title(&mut self, title: &str) { unsafe { let app = NSApplication::sharedApplication(nil); let window = self.0.lock().native_window; let title = ns_string(title); let _: () = msg_send![app, changeWindowsItem:window title:title filename:false]; let _: () = msg_send![window, setTitle: title]; self.0.lock().move_traffic_light(); } } fn get_title(&self) -> String { unsafe { let title: id = msg_send![self.0.lock().native_window, title]; if title.is_null() { "".to_string() } else { title.to_str().to_string() } } } fn set_app_id(&mut self, _app_id: &str) {} fn set_background_appearance(&self, background_appearance: WindowBackgroundAppearance) { let mut this = self.0.as_ref().lock(); this.background_appearance = background_appearance; let opaque = background_appearance == WindowBackgroundAppearance::Opaque; this.renderer.update_transparency(!opaque); unsafe { this.native_window.setOpaque_(opaque as BOOL); let background_color = if opaque { NSColor::colorWithSRGBRed_green_blue_alpha_(nil, 0f64, 0f64, 0f64, 1f64) } else { // Not using `+[NSColor clearColor]` to avoid broken shadow. NSColor::colorWithSRGBRed_green_blue_alpha_(nil, 0f64, 0f64, 0f64, 0.0001) }; this.native_window.setBackgroundColor_(background_color); if NSAppKitVersionNumber < NSAppKitVersionNumber12_0 { // Whether `-[NSVisualEffectView respondsToSelector:@selector(_updateProxyLayer)]`. // On macOS Catalina/Big Sur `NSVisualEffectView` doesn’t own concrete sublayers // but uses a `CAProxyLayer`. Use the legacy WindowServer API. let blur_radius = if background_appearance == WindowBackgroundAppearance::Blurred { 80 } else { 0 }; let window_number = this.native_window.windowNumber(); CGSSetWindowBackgroundBlurRadius(CGSMainConnectionID(), window_number, blur_radius); } else { // On newer macOS `NSVisualEffectView` manages the effect layer directly. Using it // could have a better performance (it downsamples the backdrop) and more control // over the effect layer. if background_appearance != WindowBackgroundAppearance::Blurred { if let Some(blur_view) = this.blurred_view { NSView::removeFromSuperview(blur_view); this.blurred_view = None; } } else if this.blurred_view.is_none() { let content_view = this.native_window.contentView(); let frame = NSView::bounds(content_view); let mut blur_view: id = msg_send![BLURRED_VIEW_CLASS, alloc]; blur_view = NSView::initWithFrame_(blur_view, frame); blur_view.setAutoresizingMask_(NSViewWidthSizable | NSViewHeightSizable); let _: () = msg_send![ content_view, addSubview: blur_view positioned: NSWindowOrderingMode::NSWindowBelow relativeTo: nil ]; this.blurred_view = Some(blur_view.autorelease()); } } } } fn background_appearance(&self) -> WindowBackgroundAppearance { self.0.as_ref().lock().background_appearance } fn is_subpixel_rendering_supported(&self) -> bool { false } fn set_edited(&mut self, edited: bool) { unsafe { let window = self.0.lock().native_window; msg_send![window, setDocumentEdited: edited as BOOL] } // Changing the document edited state resets the traffic light position, // so we have to move it again. self.0.lock().move_traffic_light(); } fn show_character_palette(&self) { let this = self.0.lock(); let window = this.native_window; this.foreground_executor .spawn(async move { unsafe { let app = NSApplication::sharedApplication(nil); let _: () = msg_send![app, orderFrontCharacterPalette: window]; } }) .detach(); } fn minimize(&self) { let window = self.0.lock().native_window; unsafe { window.miniaturize_(nil); } } fn zoom(&self) { let this = self.0.lock(); let window = this.native_window; let closed = this.closed.clone(); this.foreground_executor .spawn(async move { if_window_not_closed(closed, || unsafe { window.zoom_(nil); }) }) .detach(); } fn toggle_fullscreen(&self) { let this = self.0.lock(); let window = this.native_window; let closed = this.closed.clone(); this.foreground_executor .spawn(async move { if_window_not_closed(closed, || unsafe { window.toggleFullScreen_(nil); }) }) .detach(); } fn is_fullscreen(&self) -> bool { let this = self.0.lock(); let window = this.native_window; unsafe { window .styleMask() .contains(NSWindowStyleMask::NSFullScreenWindowMask) } } fn on_request_frame(&self, callback: Box) { self.0.as_ref().lock().request_frame_callback = Some(callback); } fn on_input(&self, callback: Box gpui::DispatchEventResult>) { self.0.as_ref().lock().event_callback = Some(callback); } fn on_active_status_change(&self, callback: Box) { self.0.as_ref().lock().activate_callback = Some(callback); } fn on_hover_status_change(&self, _: Box) {} fn on_resize(&self, callback: Box, f32)>) { self.0.as_ref().lock().resize_callback = Some(callback); } fn on_moved(&self, callback: Box) { self.0.as_ref().lock().moved_callback = Some(callback); } fn on_should_close(&self, callback: Box bool>) { self.0.as_ref().lock().should_close_callback = Some(callback); } fn on_close(&self, callback: Box) { self.0.as_ref().lock().close_callback = Some(callback); } fn on_hit_test_window_control(&self, _callback: Box Option>) { } fn on_appearance_changed(&self, callback: Box) { self.0.lock().appearance_changed_callback = Some(callback); } fn tabbed_windows(&self) -> Option> { unsafe { let windows: id = msg_send![self.0.lock().native_window, tabbedWindows]; if windows.is_null() { return None; } let count: NSUInteger = msg_send![windows, count]; let mut result = Vec::new(); for i in 0..count { let window: id = msg_send![windows, objectAtIndex:i]; if msg_send![window, isKindOfClass: WINDOW_CLASS] { let handle = get_window_state(&*window).lock().handle; let title: id = msg_send![window, title]; let title = SharedString::from(title.to_str().to_string()); result.push(SystemWindowTab::new(title, handle)); } } Some(result) } } fn tab_bar_visible(&self) -> bool { unsafe { let tab_group: id = msg_send![self.0.lock().native_window, tabGroup]; if tab_group.is_null() { false } else { let tab_bar_visible: BOOL = msg_send![tab_group, isTabBarVisible]; tab_bar_visible == YES } } } fn on_move_tab_to_new_window(&self, callback: Box) { self.0.as_ref().lock().move_tab_to_new_window_callback = Some(callback); } fn on_merge_all_windows(&self, callback: Box) { self.0.as_ref().lock().merge_all_windows_callback = Some(callback); } fn on_select_next_tab(&self, callback: Box) { self.0.as_ref().lock().select_next_tab_callback = Some(callback); } fn on_select_previous_tab(&self, callback: Box) { self.0.as_ref().lock().select_previous_tab_callback = Some(callback); } fn on_toggle_tab_bar(&self, callback: Box) { self.0.as_ref().lock().toggle_tab_bar_callback = Some(callback); } fn draw(&self, scene: &gpui::Scene) { let mut this = self.0.lock(); this.renderer.draw(scene); } fn sprite_atlas(&self) -> Arc { self.0.lock().renderer.sprite_atlas().clone() } fn gpu_specs(&self) -> Option { None } fn update_ime_position(&self, _bounds: Bounds) { let executor = self.0.lock().foreground_executor.clone(); executor .spawn(async move { unsafe { let input_context: id = msg_send![class!(NSTextInputContext), currentInputContext]; if input_context.is_null() { return; } let _: () = msg_send![input_context, invalidateCharacterCoordinates]; } }) .detach() } fn titlebar_double_click(&self) { let this = self.0.lock(); let window = this.native_window; let closed = this.closed.clone(); this.foreground_executor .spawn(async move { if_window_not_closed(closed, || { unsafe { let defaults: id = NSUserDefaults::standardUserDefaults(); let domain = ns_string("NSGlobalDomain"); let key = ns_string("AppleActionOnDoubleClick"); let dict: id = msg_send![defaults, persistentDomainForName: domain]; let action: id = if !dict.is_null() { msg_send![dict, objectForKey: key] } else { nil }; let action_str = if !action.is_null() { CStr::from_ptr(NSString::UTF8String(action)).to_string_lossy() } else { "".into() }; match action_str.as_ref() { "None" => { // "Do Nothing" selected, so do no action } "Minimize" => { window.miniaturize_(nil); } "Maximize" => { window.zoom_(nil); } "Fill" => { // There is no documented API for "Fill" action, so we'll just zoom the window window.zoom_(nil); } _ => { window.zoom_(nil); } } } }) }) .detach(); } fn start_window_move(&self) { let this = self.0.lock(); let window = this.native_window; unsafe { let app = NSApplication::sharedApplication(nil); let event: id = msg_send![app, currentEvent]; let _: () = msg_send![window, performWindowDragWithEvent: event]; } } fn play_system_bell(&self) { unsafe { NSBeep() } } #[cfg(any(test, feature = "test-support"))] fn render_to_image(&self, scene: &gpui::Scene) -> Result { let mut this = self.0.lock(); this.renderer.render_to_image(scene) } } impl rwh::HasWindowHandle for MacWindow { fn window_handle(&self) -> Result, rwh::HandleError> { // SAFETY: The AppKitWindowHandle is a wrapper around a pointer to an NSView unsafe { Ok(rwh::WindowHandle::borrow_raw(rwh::RawWindowHandle::AppKit( rwh::AppKitWindowHandle::new(self.0.lock().native_view.cast()), ))) } } } impl rwh::HasDisplayHandle for MacWindow { fn display_handle(&self) -> Result, rwh::HandleError> { Ok(rwh::DisplayHandle::appkit()) } } fn get_scale_factor(native_window: id) -> f32 { let factor = unsafe { let screen: id = msg_send![native_window, screen]; if screen.is_null() { return 2.0; } NSScreen::backingScaleFactor(screen) as f32 }; // We are not certain what triggers this, but it seems that sometimes // this method would return 0 (https://github.com/zed-industries/zed/issues/6412) // It seems most likely that this would happen if the window has no screen // (if it is off-screen), though we'd expect to see viewDidChangeBackingProperties before // it was rendered for real. // Regardless, attempt to avoid the issue here. if factor == 0.0 { 2. } else { factor } } unsafe fn get_window_state(object: &Object) -> Arc> { unsafe { let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR); let rc1 = Arc::from_raw(raw as *mut Mutex); let rc2 = rc1.clone(); mem::forget(rc1); rc2 } } unsafe fn drop_window_state(object: &Object) { unsafe { let raw: *mut c_void = *object.get_ivar(WINDOW_STATE_IVAR); Arc::from_raw(raw as *mut Mutex); } } extern "C" fn yes(_: &Object, _: Sel) -> BOOL { YES } extern "C" fn dealloc_window(this: &Object, _: Sel) { unsafe { drop_window_state(this); let _: () = msg_send![super(this, class!(NSWindow)), dealloc]; } } extern "C" fn dealloc_view(this: &Object, _: Sel) { unsafe { drop_window_state(this); let _: () = msg_send![super(this, class!(NSView)), dealloc]; } } extern "C" fn handle_key_equivalent(this: &Object, _: Sel, native_event: id) -> BOOL { handle_key_event(this, native_event, true) } extern "C" fn handle_key_down(this: &Object, _: Sel, native_event: id) { handle_key_event(this, native_event, false); } extern "C" fn handle_key_up(this: &Object, _: Sel, native_event: id) { handle_key_event(this, native_event, false); } // Things to test if you're modifying this method: // U.S. layout: // - The IME consumes characters like 'j' and 'k', which makes paging through `less` in // the terminal behave incorrectly by default. This behavior should be patched by our // IME integration // - `alt-t` should open the tasks menu // - In vim mode, this keybinding should work: // ``` // { // "context": "Editor && vim_mode == insert", // "bindings": {"j j": "vim::NormalBefore"} // } // ``` // and typing 'j k' in insert mode with this keybinding should insert the two characters // Brazilian layout: // - `" space` should create an unmarked quote // - `" backspace` should delete the marked quote // - `" "`should create an unmarked quote and a second marked quote // - `" up` should insert a quote, unmark it, and move up one line // - `" cmd-down` should insert a quote, unmark it, and move to the end of the file // - `cmd-ctrl-space` and clicking on an emoji should type it // Czech (QWERTY) layout: // - in vim mode `option-4` should go to end of line (same as $) // Japanese (Romaji) layout: // - type `a i left down up enter enter` should create an unmarked text "愛" // - In vim mode with `jj` bound to `vim::NormalBefore` in insert mode, typing 'j i' with // Japanese IME should produce "じ" (ji), not "jい" /// Returns true if the current keyboard input source is a composition-based IME /// (e.g. Japanese Hiragana, Korean, Chinese Pinyin) that produces non-ASCII output. /// /// This checks two properties: /// 1. The source type is `kTISTypeKeyboardInputMode` (an IME input mode, not a plain /// keyboard layout). This excludes non-ASCII layouts like Armenian and Ukrainian /// that map keys directly without composition. /// 2. The source is not ASCII-capable, which excludes modes like Japanese Romaji that /// produce ASCII characters and should allow multi-stroke keybindings like `jj`. unsafe fn is_ime_input_source_active() -> bool { unsafe { let source = TISCopyCurrentKeyboardInputSource(); if source.is_null() { return false; } let source_type = TISGetInputSourceProperty(source, kTISPropertyInputSourceType as *const c_void); let is_input_mode = !source_type.is_null() && CFEqual( source_type as CFTypeRef, kTISTypeKeyboardInputMode as CFTypeRef, ) != 0; let is_ascii = TISGetInputSourceProperty( source, kTISPropertyInputSourceIsASCIICapable as *const c_void, ); let is_ascii_capable = !is_ascii.is_null() && CFBooleanGetValue(is_ascii as CFBooleanRef); CFRelease(source as CFTypeRef); is_input_mode && !is_ascii_capable } } extern "C" fn handle_key_event(this: &Object, native_event: id, key_equivalent: bool) -> BOOL { let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.as_ref().lock(); let window_height = lock.content_size().height; let event = unsafe { platform_input_from_native(native_event, Some(window_height)) }; let Some(event) = event else { return NO; }; let run_callback = |event: PlatformInput| -> BOOL { let mut callback = window_state.as_ref().lock().event_callback.take(); let handled: BOOL = if let Some(callback) = callback.as_mut() { !callback(event).propagate as BOOL } else { NO }; window_state.as_ref().lock().event_callback = callback; handled }; match event { PlatformInput::KeyDown(key_down_event) => { // For certain keystrokes, macOS will first dispatch a "key equivalent" event. // If that event isn't handled, it will then dispatch a "key down" event. GPUI // makes no distinction between these two types of events, so we need to ignore // the "key down" event if we've already just processed its "key equivalent" version. if key_equivalent { lock.last_key_equivalent = Some(key_down_event.clone()); } else if lock.last_key_equivalent.take().as_ref() == Some(&key_down_event) { return NO; } drop(lock); let is_composing = with_input_handler(this, |input_handler| input_handler.marked_text_range()) .flatten() .is_some(); // If we're composing, send the key to the input handler first; // otherwise we only send to the input handler if we don't have a matching binding. // The input handler may call `do_command_by_selector` if it doesn't know how to handle // a key. If it does so, it will return YES so we won't send the key twice. // We also do this for non-printing keys (like arrow keys and escape) as the IME menu // may need them even if there is no marked text; // however we skip keys with control or the input handler adds control-characters to the buffer. // and keys with function, as the input handler swallows them. // and keys with platform (Cmd), so that Cmd+key events (e.g. Cmd+`) are not // consumed by the IME on non-QWERTY / dead-key layouts. // We also send printable keys to the IME first when an IME input source (e.g. Japanese, // Korean, Chinese) is active and the input handler accepts text input. This prevents // multi-stroke keybindings like `jj` from intercepting keys that the IME should compose // (e.g. typing 'ji' should produce 'じ', not 'jい'). If the IME doesn't handle the key, // it calls `doCommandBySelector:` which routes it back to keybinding matching. let is_ime_printable_key = !is_composing && key_down_event .keystroke .key_char .as_ref() .is_some_and(|key_char| key_char.chars().all(|c| !c.is_control())) && !key_down_event.keystroke.modifiers.control && !key_down_event.keystroke.modifiers.function && !key_down_event.keystroke.modifiers.platform && unsafe { is_ime_input_source_active() } && with_input_handler(this, |input_handler| { input_handler.query_prefers_ime_for_printable_keys() }) .unwrap_or(false); if is_composing || is_ime_printable_key || (key_down_event.keystroke.key_char.is_none() && !key_down_event.keystroke.modifiers.control && !key_down_event.keystroke.modifiers.function && !key_down_event.keystroke.modifiers.platform) { { let mut lock = window_state.as_ref().lock(); lock.keystroke_for_do_command = Some(key_down_event.keystroke.clone()); lock.do_command_handled.take(); drop(lock); } let handled: BOOL = unsafe { let input_context: id = msg_send![this, inputContext]; msg_send![input_context, handleEvent: native_event] }; window_state.as_ref().lock().keystroke_for_do_command.take(); if let Some(handled) = window_state.as_ref().lock().do_command_handled.take() { return handled as BOOL; } else if handled == YES { return YES; } let handled = run_callback(PlatformInput::KeyDown(key_down_event)); return handled; } let handled = run_callback(PlatformInput::KeyDown(key_down_event.clone())); if handled == YES { return YES; } if key_down_event.is_held && let Some(key_char) = key_down_event.keystroke.key_char.as_ref() { let handled = with_input_handler(this, |input_handler| { if !input_handler.apple_press_and_hold_enabled() { input_handler.replace_text_in_range(None, key_char); return YES; } NO }); if handled == Some(YES) { return YES; } } // Don't send key equivalents to the input handler if there are key modifiers other // than Function key, or macOS shortcuts like cmd-` will stop working. if key_equivalent && key_down_event.keystroke.modifiers != Modifiers::function() { return NO; } unsafe { let input_context: id = msg_send![this, inputContext]; msg_send![input_context, handleEvent: native_event] } } PlatformInput::KeyUp(_) => { drop(lock); run_callback(event) } _ => NO, } } extern "C" fn handle_view_event(this: &Object, _: Sel, native_event: id) { let window_state = unsafe { get_window_state(this) }; let weak_window_state = Arc::downgrade(&window_state); let mut lock = window_state.as_ref().lock(); let window_height = lock.content_size().height; let event = unsafe { platform_input_from_native(native_event, Some(window_height)) }; if let Some(mut event) = event { match &mut event { PlatformInput::MouseDown( event @ MouseDownEvent { button: MouseButton::Left, modifiers: Modifiers { control: true, .. }, .. }, ) => { // On mac, a ctrl-left click should be handled as a right click. *event = MouseDownEvent { button: MouseButton::Right, modifiers: Modifiers { control: false, ..event.modifiers }, click_count: 1, ..*event }; } // Handles focusing click. PlatformInput::MouseDown( event @ MouseDownEvent { button: MouseButton::Left, .. }, ) if (lock.first_mouse) => { *event = MouseDownEvent { first_mouse: true, ..*event }; lock.first_mouse = false; } // Because we map a ctrl-left_down to a right_down -> right_up let's ignore // the ctrl-left_up to avoid having a mismatch in button down/up events if the // user is still holding ctrl when releasing the left mouse button PlatformInput::MouseUp( event @ MouseUpEvent { button: MouseButton::Left, modifiers: Modifiers { control: true, .. }, .. }, ) => { *event = MouseUpEvent { button: MouseButton::Right, modifiers: Modifiers { control: false, ..event.modifiers }, click_count: 1, ..*event }; } _ => {} }; match &event { PlatformInput::MouseDown(_) => { drop(lock); unsafe { let input_context: id = msg_send![this, inputContext]; msg_send![input_context, handleEvent: native_event] } lock = window_state.as_ref().lock(); } PlatformInput::MouseMove( event @ MouseMoveEvent { pressed_button: Some(_), .. }, ) => { // Synthetic drag is used for selecting long buffer contents while buffer is being scrolled. // External file drag and drop is able to emit its own synthetic mouse events which will conflict // with these ones. if !lock.external_files_dragged { lock.synthetic_drag_counter += 1; let executor = lock.foreground_executor.clone(); executor .spawn(synthetic_drag( weak_window_state, lock.synthetic_drag_counter, event.clone(), lock.background_executor.clone(), )) .detach(); } } PlatformInput::MouseUp(MouseUpEvent { .. }) => { lock.synthetic_drag_counter += 1; } PlatformInput::ModifiersChanged(ModifiersChangedEvent { modifiers, capslock, }) => { // Only raise modifiers changed event when they have actually changed if let Some(PlatformInput::ModifiersChanged(ModifiersChangedEvent { modifiers: prev_modifiers, capslock: prev_capslock, })) = &lock.previous_modifiers_changed_event && prev_modifiers == modifiers && prev_capslock == capslock { return; } lock.previous_modifiers_changed_event = Some(event.clone()); } _ => {} } if let Some(mut callback) = lock.event_callback.take() { drop(lock); callback(event); window_state.lock().event_callback = Some(callback); } } } extern "C" fn window_did_change_occlusion_state(this: &Object, _: Sel, _: id) { let window_state = unsafe { get_window_state(this) }; let lock = &mut *window_state.lock(); unsafe { if lock .native_window .occlusionState() .contains(NSWindowOcclusionState::NSWindowOcclusionStateVisible) { lock.move_traffic_light(); lock.start_display_link(); } else { lock.stop_display_link(); } } } extern "C" fn window_did_resize(this: &Object, _: Sel, _: id) { let window_state = unsafe { get_window_state(this) }; window_state.as_ref().lock().move_traffic_light(); } extern "C" fn window_will_enter_fullscreen(this: &Object, _: Sel, _: id) { let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.as_ref().lock(); lock.fullscreen_restore_bounds = lock.bounds(); let min_version = NSOperatingSystemVersion::new(15, 3, 0); if is_macos_version_at_least(min_version) { unsafe { lock.native_window.setTitlebarAppearsTransparent_(NO); } } } extern "C" fn window_will_exit_fullscreen(this: &Object, _: Sel, _: id) { let window_state = unsafe { get_window_state(this) }; let lock = window_state.as_ref().lock(); let min_version = NSOperatingSystemVersion::new(15, 3, 0); if is_macos_version_at_least(min_version) && lock.transparent_titlebar { unsafe { lock.native_window.setTitlebarAppearsTransparent_(YES); } } } pub(crate) fn is_macos_version_at_least(version: NSOperatingSystemVersion) -> bool { unsafe { NSProcessInfo::processInfo(nil).isOperatingSystemAtLeastVersion(version) } } extern "C" fn window_did_move(this: &Object, _: Sel, _: id) { let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.as_ref().lock(); if let Some(mut callback) = lock.moved_callback.take() { drop(lock); callback(); window_state.lock().moved_callback = Some(callback); } } // Update the window scale factor and drawable size, and call the resize callback if any. fn update_window_scale_factor(window_state: &Arc>) { let mut lock = window_state.as_ref().lock(); let scale_factor = lock.scale_factor(); let size = lock.content_size(); let drawable_size = size.to_device_pixels(scale_factor); if let Some(layer) = lock.renderer.layer() { unsafe { let _: () = msg_send![ layer, setContentsScale: scale_factor as f64 ]; } } lock.renderer.update_drawable_size(drawable_size); if let Some(mut callback) = lock.resize_callback.take() { let content_size = lock.content_size(); let scale_factor = lock.scale_factor(); drop(lock); callback(content_size, scale_factor); window_state.as_ref().lock().resize_callback = Some(callback); }; } extern "C" fn window_did_change_screen(this: &Object, _: Sel, _: id) { let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.as_ref().lock(); lock.start_display_link(); drop(lock); update_window_scale_factor(&window_state); } extern "C" fn window_did_change_key_status(this: &Object, selector: Sel, _: id) { let window_state = unsafe { get_window_state(this) }; let lock = window_state.lock(); let is_active = unsafe { lock.native_window.isKeyWindow() == YES }; // When opening a pop-up while the application isn't active, Cocoa sends a spurious // `windowDidBecomeKey` message to the previous key window even though that window // isn't actually key. This causes a bug if the application is later activated while // the pop-up is still open, making it impossible to activate the previous key window // even if the pop-up gets closed. The only way to activate it again is to de-activate // the app and re-activate it, which is a pretty bad UX. // The following code detects the spurious event and invokes `resignKeyWindow`: // in theory, we're not supposed to invoke this method manually but it balances out // the spurious `becomeKeyWindow` event and helps us work around that bug. if selector == sel!(windowDidBecomeKey:) && !is_active { let native_window = lock.native_window; drop(lock); unsafe { let _: () = msg_send![native_window, resignKeyWindow]; } return; } let executor = lock.foreground_executor.clone(); drop(lock); // When a window becomes active, trigger an immediate synchronous frame request to prevent // tab flicker when switching between windows in native tabs mode. // // This is only done on subsequent activations (not the first) to ensure the initial focus // path is properly established. Without this guard, the focus state would remain unset until // the first mouse click, causing keybindings to be non-functional. if selector == sel!(windowDidBecomeKey:) && is_active { let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.lock(); if lock.activated_least_once { if let Some(mut callback) = lock.request_frame_callback.take() { lock.renderer.set_presents_with_transaction(true); lock.stop_display_link(); drop(lock); callback(Default::default()); let mut lock = window_state.lock(); lock.request_frame_callback = Some(callback); lock.renderer.set_presents_with_transaction(false); lock.start_display_link(); } } else { lock.activated_least_once = true; } } executor .spawn(async move { let mut lock = window_state.as_ref().lock(); if is_active { lock.move_traffic_light(); } if let Some(mut callback) = lock.activate_callback.take() { drop(lock); callback(is_active); window_state.lock().activate_callback = Some(callback); }; }) .detach(); } extern "C" fn window_should_close(this: &Object, _: Sel, _: id) -> BOOL { let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.as_ref().lock(); if let Some(mut callback) = lock.should_close_callback.take() { drop(lock); let should_close = callback(); window_state.lock().should_close_callback = Some(callback); should_close as BOOL } else { YES } } extern "C" fn close_window(this: &Object, _: Sel) { unsafe { let close_callback = { let window_state = get_window_state(this); let mut lock = window_state.as_ref().lock(); lock.closed.store(true, Ordering::Release); lock.close_callback.take() }; if let Some(callback) = close_callback { callback(); } let _: () = msg_send![super(this, class!(NSWindow)), close]; } } extern "C" fn make_backing_layer(this: &Object, _: Sel) -> id { let window_state = unsafe { get_window_state(this) }; let window_state = window_state.as_ref().lock(); window_state.renderer.layer_ptr() as id } extern "C" fn view_did_change_backing_properties(this: &Object, _: Sel) { let window_state = unsafe { get_window_state(this) }; update_window_scale_factor(&window_state); } extern "C" fn set_frame_size(this: &Object, _: Sel, size: NSSize) { fn convert(value: NSSize) -> Size { Size { width: px(value.width as f32), height: px(value.height as f32), } } let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.as_ref().lock(); let new_size = convert(size); let old_size = unsafe { let old_frame: NSRect = msg_send![this, frame]; convert(old_frame.size) }; if old_size == new_size { return; } unsafe { let _: () = msg_send![super(this, class!(NSView)), setFrameSize: size]; } let scale_factor = lock.scale_factor(); let drawable_size = new_size.to_device_pixels(scale_factor); lock.renderer.update_drawable_size(drawable_size); if let Some(mut callback) = lock.resize_callback.take() { let content_size = lock.content_size(); let scale_factor = lock.scale_factor(); drop(lock); callback(content_size, scale_factor); window_state.lock().resize_callback = Some(callback); }; } extern "C" fn display_layer(this: &Object, _: Sel, _: id) { let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.lock(); if let Some(mut callback) = lock.request_frame_callback.take() { lock.renderer.set_presents_with_transaction(true); lock.stop_display_link(); drop(lock); callback(Default::default()); let mut lock = window_state.lock(); lock.request_frame_callback = Some(callback); lock.renderer.set_presents_with_transaction(false); lock.start_display_link(); } } extern "C" fn step(view: *mut c_void) { let view = view as id; let window_state = unsafe { get_window_state(&*view) }; let mut lock = window_state.lock(); if let Some(mut callback) = lock.request_frame_callback.take() { drop(lock); callback(Default::default()); window_state.lock().request_frame_callback = Some(callback); } } extern "C" fn valid_attributes_for_marked_text(_: &Object, _: Sel) -> id { unsafe { msg_send![class!(NSArray), array] } } extern "C" fn has_marked_text(this: &Object, _: Sel) -> BOOL { let has_marked_text_result = with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten(); has_marked_text_result.is_some() as BOOL } extern "C" fn marked_range(this: &Object, _: Sel) -> NSRange { let marked_range_result = with_input_handler(this, |input_handler| input_handler.marked_text_range()).flatten(); marked_range_result.map_or(NSRange::invalid(), |range| range.into()) } extern "C" fn selected_range(this: &Object, _: Sel) -> NSRange { let selected_range_result = with_input_handler(this, |input_handler| { input_handler.selected_text_range(false) }) .flatten(); selected_range_result.map_or(NSRange::invalid(), |selection| selection.range.into()) } extern "C" fn first_rect_for_character_range( this: &Object, _: Sel, range: NSRange, _: id, ) -> NSRect { let frame = get_frame(this); with_input_handler(this, |input_handler| { input_handler.bounds_for_range(range.to_range()?) }) .flatten() .map_or( NSRect::new(NSPoint::new(0., 0.), NSSize::new(0., 0.)), |bounds| { NSRect::new( NSPoint::new( frame.origin.x + bounds.origin.x.as_f32() as f64, frame.origin.y + frame.size.height - bounds.origin.y.as_f32() as f64 - bounds.size.height.as_f32() as f64, ), NSSize::new( bounds.size.width.as_f32() as f64, bounds.size.height.as_f32() as f64, ), ) }, ) } fn get_frame(this: &Object) -> NSRect { unsafe { let state = get_window_state(this); let lock = state.lock(); let mut frame = NSWindow::frame(lock.native_window); let content_layout_rect: CGRect = msg_send![lock.native_window, contentLayoutRect]; let style_mask: NSWindowStyleMask = msg_send![lock.native_window, styleMask]; if !style_mask.contains(NSWindowStyleMask::NSFullSizeContentViewWindowMask) { frame.origin.y -= frame.size.height - content_layout_rect.size.height; } frame } } extern "C" fn insert_text(this: &Object, _: Sel, text: id, replacement_range: NSRange) { unsafe { let is_attributed_string: BOOL = msg_send![text, isKindOfClass: [class!(NSAttributedString)]]; let text: id = if is_attributed_string == YES { msg_send![text, string] } else { text }; let text = text.to_str(); let replacement_range = replacement_range.to_range(); with_input_handler(this, |input_handler| { input_handler.replace_text_in_range(replacement_range, text) }); } } extern "C" fn set_marked_text( this: &Object, _: Sel, text: id, selected_range: NSRange, replacement_range: NSRange, ) { unsafe { let is_attributed_string: BOOL = msg_send![text, isKindOfClass: [class!(NSAttributedString)]]; let text: id = if is_attributed_string == YES { msg_send![text, string] } else { text }; let selected_range = selected_range.to_range(); let replacement_range = replacement_range.to_range(); let text = text.to_str(); with_input_handler(this, |input_handler| { input_handler.replace_and_mark_text_in_range(replacement_range, text, selected_range) }); } } extern "C" fn unmark_text(this: &Object, _: Sel) { with_input_handler(this, |input_handler| input_handler.unmark_text()); } extern "C" fn attributed_substring_for_proposed_range( this: &Object, _: Sel, range: NSRange, actual_range: *mut c_void, ) -> id { with_input_handler(this, |input_handler| { let range = range.to_range()?; if range.is_empty() { return None; } let mut adjusted: Option> = None; let selected_text = input_handler.text_for_range(range.clone(), &mut adjusted)?; if let Some(adjusted) = adjusted && adjusted != range { unsafe { (actual_range as *mut NSRange).write(NSRange::from(adjusted)) }; } unsafe { let string: id = msg_send![class!(NSAttributedString), alloc]; let string: id = msg_send![string, initWithString: ns_string(&selected_text)]; Some(string) } }) .flatten() .unwrap_or(nil) } // We ignore which selector it asks us to do because the user may have // bound the shortcut to something else. extern "C" fn do_command_by_selector(this: &Object, _: Sel, _: Sel) { let state = unsafe { get_window_state(this) }; let mut lock = state.as_ref().lock(); let keystroke = lock.keystroke_for_do_command.take(); let mut event_callback = lock.event_callback.take(); drop(lock); if let Some((keystroke, callback)) = keystroke.zip(event_callback.as_mut()) { let handled = (callback)(PlatformInput::KeyDown(KeyDownEvent { keystroke, is_held: false, prefer_character_input: false, })); state.as_ref().lock().do_command_handled = Some(!handled.propagate); } state.as_ref().lock().event_callback = event_callback; } extern "C" fn view_did_change_effective_appearance(this: &Object, _: Sel) { unsafe { let state = get_window_state(this); let mut lock = state.as_ref().lock(); if let Some(mut callback) = lock.appearance_changed_callback.take() { drop(lock); callback(); state.lock().appearance_changed_callback = Some(callback); } } } extern "C" fn accepts_first_mouse(this: &Object, _: Sel, _: id) -> BOOL { let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.as_ref().lock(); lock.first_mouse = true; YES } extern "C" fn character_index_for_point(this: &Object, _: Sel, position: NSPoint) -> u64 { let position = screen_point_to_gpui_point(this, position); with_input_handler(this, |input_handler| { input_handler.character_index_for_point(position) }) .flatten() .map(|index| index as u64) .unwrap_or(NSNotFound as u64) } fn screen_point_to_gpui_point(this: &Object, position: NSPoint) -> Point { let frame = get_frame(this); let window_x = position.x - frame.origin.x; let window_y = frame.size.height - (position.y - frame.origin.y); point(px(window_x as f32), px(window_y as f32)) } extern "C" fn dragging_entered(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation { let window_state = unsafe { get_window_state(this) }; let position = drag_event_position(&window_state, dragging_info); let paths = external_paths_from_event(dragging_info); if let Some(event) = paths.map(|paths| FileDropEvent::Entered { position, paths }) && send_file_drop_event(window_state, event) { return NSDragOperationCopy; } NSDragOperationNone } extern "C" fn dragging_updated(this: &Object, _: Sel, dragging_info: id) -> NSDragOperation { let window_state = unsafe { get_window_state(this) }; let position = drag_event_position(&window_state, dragging_info); if send_file_drop_event(window_state, FileDropEvent::Pending { position }) { NSDragOperationCopy } else { NSDragOperationNone } } extern "C" fn dragging_exited(this: &Object, _: Sel, _: id) { let window_state = unsafe { get_window_state(this) }; send_file_drop_event(window_state, FileDropEvent::Exited); } extern "C" fn perform_drag_operation(this: &Object, _: Sel, dragging_info: id) -> BOOL { let window_state = unsafe { get_window_state(this) }; let position = drag_event_position(&window_state, dragging_info); send_file_drop_event(window_state, FileDropEvent::Submit { position }).to_objc() } fn external_paths_from_event(dragging_info: *mut Object) -> Option { let mut paths = SmallVec::new(); let pasteboard: id = unsafe { msg_send![dragging_info, draggingPasteboard] }; let filenames = unsafe { NSPasteboard::propertyListForType(pasteboard, NSFilenamesPboardType) }; if filenames == nil { return None; } for file in unsafe { filenames.iter() } { let path = unsafe { let f = NSString::UTF8String(file); CStr::from_ptr(f).to_string_lossy().into_owned() }; paths.push(PathBuf::from(path)) } Some(ExternalPaths(paths)) } extern "C" fn conclude_drag_operation(this: &Object, _: Sel, _: id) { let window_state = unsafe { get_window_state(this) }; send_file_drop_event(window_state, FileDropEvent::Exited); } async fn synthetic_drag( window_state: Weak>, drag_id: usize, event: MouseMoveEvent, executor: BackgroundExecutor, ) { loop { executor.timer(Duration::from_millis(16)).await; if let Some(window_state) = window_state.upgrade() { let mut lock = window_state.lock(); if lock.synthetic_drag_counter == drag_id { if let Some(mut callback) = lock.event_callback.take() { drop(lock); callback(PlatformInput::MouseMove(event.clone())); window_state.lock().event_callback = Some(callback); } } else { break; } } } } /// Sends the specified FileDropEvent using `PlatformInput::FileDrop` to the window /// state and updates the window state according to the event passed. fn send_file_drop_event( window_state: Arc>, file_drop_event: FileDropEvent, ) -> bool { let external_files_dragged = match file_drop_event { FileDropEvent::Entered { .. } => Some(true), FileDropEvent::Exited => Some(false), _ => None, }; let mut lock = window_state.lock(); if let Some(mut callback) = lock.event_callback.take() { drop(lock); callback(PlatformInput::FileDrop(file_drop_event)); let mut lock = window_state.lock(); lock.event_callback = Some(callback); if let Some(external_files_dragged) = external_files_dragged { lock.external_files_dragged = external_files_dragged; } true } else { false } } fn drag_event_position(window_state: &Mutex, dragging_info: id) -> Point { let drag_location: NSPoint = unsafe { msg_send![dragging_info, draggingLocation] }; convert_mouse_position(drag_location, window_state.lock().content_size().height) } fn with_input_handler(window: &Object, f: F) -> Option where F: FnOnce(&mut PlatformInputHandler) -> R, { let window_state = unsafe { get_window_state(window) }; let mut lock = window_state.as_ref().lock(); if let Some(mut input_handler) = lock.input_handler.take() { drop(lock); let result = f(&mut input_handler); window_state.lock().input_handler = Some(input_handler); Some(result) } else { None } } unsafe fn display_id_for_screen(screen: id) -> CGDirectDisplayID { unsafe { let device_description = NSScreen::deviceDescription(screen); let screen_number_key: id = ns_string("NSScreenNumber"); let screen_number = device_description.objectForKey_(screen_number_key); let screen_number: NSUInteger = msg_send![screen_number, unsignedIntegerValue]; screen_number as CGDirectDisplayID } } extern "C" fn blurred_view_init_with_frame(this: &Object, _: Sel, frame: NSRect) -> id { unsafe { let view = msg_send![super(this, class!(NSVisualEffectView)), initWithFrame: frame]; // Use a colorless semantic material. The default value `AppearanceBased`, though not // manually set, is deprecated. NSVisualEffectView::setMaterial_(view, NSVisualEffectMaterial::Selection); NSVisualEffectView::setState_(view, NSVisualEffectState::Active); view } } extern "C" fn blurred_view_update_layer(this: &Object, _: Sel) { unsafe { let _: () = msg_send![super(this, class!(NSVisualEffectView)), updateLayer]; let layer: id = msg_send![this, layer]; if !layer.is_null() { remove_layer_background(layer); } } } unsafe fn remove_layer_background(layer: id) { unsafe { let _: () = msg_send![layer, setBackgroundColor:nil]; let class_name: id = msg_send![layer, className]; if class_name.isEqualToString("CAChameleonLayer") { // Remove the desktop tinting effect. let _: () = msg_send![layer, setHidden: YES]; return; } let filters: id = msg_send![layer, filters]; if !filters.is_null() { // Remove the increased saturation. // The effect of a `CAFilter` or `CIFilter` is determined by its name, and the // `description` reflects its name and some parameters. Currently `NSVisualEffectView` // uses a `CAFilter` named "colorSaturate". If one day they switch to `CIFilter`, the // `description` will still contain "Saturat" ("... inputSaturation = ..."). let test_string: id = ns_string("Saturat"); let count = NSArray::count(filters); for i in 0..count { let description: id = msg_send![filters.objectAtIndex(i), description]; let hit: BOOL = msg_send![description, containsString: test_string]; if hit == NO { continue; } let all_indices = NSRange { location: 0, length: count, }; let indices: id = msg_send![class!(NSMutableIndexSet), indexSet]; let _: () = msg_send![indices, addIndexesInRange: all_indices]; let _: () = msg_send![indices, removeIndex:i]; let filtered: id = msg_send![filters, objectsAtIndexes: indices]; let _: () = msg_send![layer, setFilters: filtered]; break; } } let sublayers: id = msg_send![layer, sublayers]; if !sublayers.is_null() { let count = NSArray::count(sublayers); for i in 0..count { let sublayer = sublayers.objectAtIndex(i); remove_layer_background(sublayer); } } } } extern "C" fn add_titlebar_accessory_view_controller(this: &Object, _: Sel, view_controller: id) { unsafe { let _: () = msg_send![super(this, class!(NSWindow)), addTitlebarAccessoryViewController: view_controller]; // Hide the native tab bar and set its height to 0, since we render our own. let accessory_view: id = msg_send![view_controller, view]; let _: () = msg_send![accessory_view, setHidden: YES]; let mut frame: NSRect = msg_send![accessory_view, frame]; frame.size.height = 0.0; let _: () = msg_send![accessory_view, setFrame: frame]; } } extern "C" fn move_tab_to_new_window(this: &Object, _: Sel, _: id) { unsafe { let _: () = msg_send![super(this, class!(NSWindow)), moveTabToNewWindow:nil]; let window_state = get_window_state(this); let mut lock = window_state.as_ref().lock(); if let Some(mut callback) = lock.move_tab_to_new_window_callback.take() { drop(lock); callback(); window_state.lock().move_tab_to_new_window_callback = Some(callback); } } } extern "C" fn merge_all_windows(this: &Object, _: Sel, _: id) { unsafe { let _: () = msg_send![super(this, class!(NSWindow)), mergeAllWindows:nil]; let window_state = get_window_state(this); let mut lock = window_state.as_ref().lock(); if let Some(mut callback) = lock.merge_all_windows_callback.take() { drop(lock); callback(); window_state.lock().merge_all_windows_callback = Some(callback); } } } extern "C" fn select_next_tab(this: &Object, _sel: Sel, _id: id) { let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.as_ref().lock(); if let Some(mut callback) = lock.select_next_tab_callback.take() { drop(lock); callback(); window_state.lock().select_next_tab_callback = Some(callback); } } extern "C" fn select_previous_tab(this: &Object, _sel: Sel, _id: id) { let window_state = unsafe { get_window_state(this) }; let mut lock = window_state.as_ref().lock(); if let Some(mut callback) = lock.select_previous_tab_callback.take() { drop(lock); callback(); window_state.lock().select_previous_tab_callback = Some(callback); } } extern "C" fn toggle_tab_bar(this: &Object, _sel: Sel, _id: id) { unsafe { let _: () = msg_send![super(this, class!(NSWindow)), toggleTabBar:nil]; let window_state = get_window_state(this); let mut lock = window_state.as_ref().lock(); lock.move_traffic_light(); if let Some(mut callback) = lock.toggle_tab_bar_callback.take() { drop(lock); callback(); window_state.lock().toggle_tab_bar_callback = Some(callback); } } }