prevent authorization request spamming windows

input-capture/src/macos.rs

@@ -1,39 +1,31 @@
 use super::{error::MacosCaptureCreationError, Capture, CaptureError, CaptureEvent, Position};
 use async_trait::async_trait;
 use bitflags::bitflags;
-use core_foundation::{
+use core_foundation::base::{kCFAllocatorDefault, CFRelease};
-    base::{kCFAllocatorDefault, CFRelease},
+use core_foundation::date::CFTimeInterval;
-    date::CFTimeInterval,
+use core_foundation::number::{kCFBooleanTrue, CFBooleanRef};
-    number::{kCFBooleanTrue, CFBooleanRef},
+use core_foundation::runloop::{kCFRunLoopCommonModes, CFRunLoop, CFRunLoopSource};
-    runloop::{kCFRunLoopCommonModes, CFRunLoop, CFRunLoopSource},
+use core_foundation::string::{kCFStringEncodingUTF8, CFStringCreateWithCString, CFStringRef};
-    string::{kCFStringEncodingUTF8, CFStringCreateWithCString, CFStringRef},
+use core_graphics::base::{kCGErrorSuccess, CGError};
-};
+use core_graphics::display::{CGDisplay, CGPoint};
-use core_graphics::{
+use core_graphics::event::{
-    base::{kCGErrorSuccess, CGError},
+    CGEvent, CGEventFlags, CGEventTap, CGEventTapLocation, CGEventTapOptions, CGEventTapPlacement,
-    display::{CGDisplay, CGPoint},
+    CGEventTapProxy, CGEventType, CallbackResult, EventField,
-    event::{
-        CGEvent, CGEventFlags, CGEventTap, CGEventTapLocation, CGEventTapOptions,
-        CGEventTapPlacement, CGEventTapProxy, CGEventType, CallbackResult, EventField,
-    },
-    event_source::{CGEventSource, CGEventSourceStateID},
 };
+use core_graphics::event_source::{CGEventSource, CGEventSourceStateID};
 use futures_core::Stream;
 use input_event::{Event, KeyboardEvent, PointerEvent, BTN_LEFT, BTN_MIDDLE, BTN_RIGHT};
 use keycode::{KeyMap, KeyMapping};
 use libc::c_void;
 use once_cell::unsync::Lazy;
-use std::{
+use std::collections::HashSet;
-    collections::HashSet,
+use std::ffi::{c_char, CString};
-    ffi::{c_char, CString},
+use std::pin::Pin;
-    pin::Pin,
+use std::sync::Arc;
-    sync::Arc,
+use std::task::{ready, Context, Poll};
-    task::{ready, Context, Poll},
+use std::thread::{self};
-    thread::{self},
+use tokio::sync::mpsc::{self, Receiver, Sender};
-};
+use tokio::sync::{oneshot, Mutex};
-use tokio::sync::{
-    mpsc::{self, Receiver, Sender},
-    oneshot, Mutex,
-};
 
 #[derive(Debug, Default)]
 struct Bounds {
@@ -45,16 +37,9 @@ struct Bounds {
 
 #[derive(Debug)]
 struct InputCaptureState {
-    /// active capture positions
     active_clients: Lazy<HashSet<Position>>,
-    /// the currently entered capture position, if any
     current_pos: Option<Position>,
-    /// position where the cursor was captured
-    enter_position: Option<CGPoint>,
-    /// bounds of the input capture area
     bounds: Bounds,
-    /// current state of modifier keys
-    modifier_state: XMods,
 }
 
 #[derive(Debug)]
@@ -71,9 +56,7 @@ impl InputCaptureState {
         let mut res = Self {
             active_clients: Lazy::new(HashSet::new),
             current_pos: None,
-            enter_position: None,
             bounds: Bounds::default(),
-            modifier_state: Default::default(),
         };
         res.update_bounds()?;
         Ok(res)
@@ -113,34 +96,45 @@ impl InputCaptureState {
         Ok(())
     }
 
-    /// start the input capture by
+    // We can't disable mouse movement when in a client so we need to reset the cursor position
-    fn start_capture(&mut self, event: &CGEvent, position: Position) -> Result<(), CaptureError> {
+    // to the edge of the screen, the cursor will be hidden but we dont want it to appear in a
-        let mut location = event.location();
+    // random location when we exit the client
-        let edge_offset = 1.0;
+    fn reset_mouse_position(&self, event: &CGEvent) -> Result<(), CaptureError> {
-        // move cursor location to display bounds
+        if let Some(pos) = self.current_pos {
-        match position {
+            let location = event.location();
-            Position::Left => location.x = self.bounds.xmin + edge_offset,
+            let edge_offset = 1.0;
-            Position::Right => location.x = self.bounds.xmax - edge_offset,
-            Position::Top => location.y = self.bounds.ymin + edge_offset,
-            Position::Bottom => location.y = self.bounds.ymax - edge_offset,
-        };
-        self.enter_position = Some(location);
-        self.reset_cursor()
-    }
 
-    /// resets the cursor to the position, where the capture started
+            // After the cursor is warped no event is produced but the next event
-    fn reset_cursor(&mut self) -> Result<(), CaptureError> {
+            // will carry the delta from the warp so only half the delta is needed to move the cursor
-        let pos = self.enter_position.expect("capture active");
+            let delta_y = event.get_double_value_field(EventField::MOUSE_EVENT_DELTA_Y) / 2.0;
-        log::trace!("Resetting cursor position to: {}, {}", pos.x, pos.y);
+            let delta_x = event.get_double_value_field(EventField::MOUSE_EVENT_DELTA_X) / 2.0;
-        CGDisplay::warp_mouse_cursor_position(pos).map_err(CaptureError::WarpCursor)
-    }
 
-    fn hide_cursor(&self) -> Result<(), CaptureError> {
+            let mut new_x = location.x + delta_x;
-        CGDisplay::hide_cursor(&CGDisplay::main()).map_err(CaptureError::CoreGraphics)
+            let mut new_y = location.y + delta_y;
-    }
 
-    fn show_cursor(&self) -> Result<(), CaptureError> {
+            match pos {
-        CGDisplay::show_cursor(&CGDisplay::main()).map_err(CaptureError::CoreGraphics)
+                Position::Left => {
+                    new_x = self.bounds.xmin + edge_offset;
+                }
+                Position::Right => {
+                    new_x = self.bounds.xmax - edge_offset;
+                }
+                Position::Top => {
+                    new_y = self.bounds.ymin + edge_offset;
+                }
+                Position::Bottom => {
+                    new_y = self.bounds.ymax - edge_offset;
+                }
+            }
+            let new_pos = CGPoint::new(new_x, new_y);
+
+            log::trace!("Resetting cursor position to: {new_x}, {new_y}");
+
+            return CGDisplay::warp_mouse_cursor_position(new_pos)
+                .map_err(CaptureError::WarpCursor);
+        }
+
+        Err(CaptureError::ResetMouseWithoutClient)
     }
 
     async fn handle_producer_event(
@@ -151,13 +145,15 @@ impl InputCaptureState {
         match producer_event {
             ProducerEvent::Release => {
                 if self.current_pos.is_some() {
-                    self.show_cursor()?;
+                    CGDisplay::show_cursor(&CGDisplay::main())
+                        .map_err(CaptureError::CoreGraphics)?;
                     self.current_pos = None;
                 }
             }
             ProducerEvent::Grab(pos) => {
                 if self.current_pos.is_none() {
-                    self.hide_cursor()?;
+                    CGDisplay::hide_cursor(&CGDisplay::main())
+                        .map_err(CaptureError::CoreGraphics)?;
                     self.current_pos = Some(pos);
                 }
             }
@@ -167,7 +163,8 @@ impl InputCaptureState {
             ProducerEvent::Destroy(p) => {
                 if let Some(current) = self.current_pos {
                     if current == p {
-                        self.show_cursor()?;
+                        CGDisplay::show_cursor(&CGDisplay::main())
+                            .map_err(CaptureError::CoreGraphics)?;
                         self.current_pos = None;
                     };
                 }
@@ -183,7 +180,6 @@ fn get_events(
     ev_type: &CGEventType,
     ev: &CGEvent,
     result: &mut Vec<CaptureEvent>,
-    modifier_state: &mut XMods,
 ) -> Result<(), CaptureError> {
     fn map_pointer_event(ev: &CGEvent) -> PointerEvent {
         PointerEvent::Motion {
@@ -219,42 +215,29 @@ fn get_events(
             })));
         }
         CGEventType::FlagsChanged => {
-            let mut depressed = XMods::empty();
+            let mut mods = XMods::empty();
             let mut mods_locked = XMods::empty();
             let cg_flags = ev.get_flags();
 
             if cg_flags.contains(CGEventFlags::CGEventFlagShift) {
-                depressed |= XMods::ShiftMask;
+                mods |= XMods::ShiftMask;
             }
             if cg_flags.contains(CGEventFlags::CGEventFlagControl) {
-                depressed |= XMods::ControlMask;
+                mods |= XMods::ControlMask;
             }
             if cg_flags.contains(CGEventFlags::CGEventFlagAlternate) {
-                depressed |= XMods::Mod1Mask;
+                mods |= XMods::Mod1Mask;
             }
             if cg_flags.contains(CGEventFlags::CGEventFlagCommand) {
-                depressed |= XMods::Mod4Mask;
+                mods |= XMods::Mod4Mask;
             }
             if cg_flags.contains(CGEventFlags::CGEventFlagAlphaShift) {
-                depressed |= XMods::LockMask;
+                mods |= XMods::LockMask;
                 mods_locked |= XMods::LockMask;
             }
 
-            // check if pressed or released
-            let state = if depressed > *modifier_state { 1 } else { 0 };
-            *modifier_state = depressed;
-
-            if let Ok(key) = map_key(ev) {
-                let key_event = CaptureEvent::Input(Event::Keyboard(KeyboardEvent::Key {
-                    time: 0,
-                    key,
-                    state,
-                }));
-                result.push(key_event);
-            }
-
             let modifier_event = KeyboardEvent::Modifiers {
-                depressed: depressed.bits(),
+                depressed: mods.bits(),
                 latched: 0,
                 locked: mods_locked.bits(),
                 group: 0,
@@ -365,7 +348,7 @@ fn create_event_tap<'a>(
         move |_proxy: CGEventTapProxy, event_type: CGEventType, cg_ev: &CGEvent| {
             log::trace!("Got event from tap: {event_type:?}");
             let mut state = client_state.blocking_lock();
-            let mut capture_position = None;
+            let mut pos = None;
             let mut res_events = vec![];
 
             if matches!(
@@ -382,34 +365,22 @@ fn create_event_tap<'a>(
 
             // Are we in a client?
             if let Some(current_pos) = state.current_pos {
-                capture_position = Some(current_pos);
+                pos = Some(current_pos);
-                get_events(
+                get_events(&event_type, cg_ev, &mut res_events).unwrap_or_else(|e| {
-                    &event_type,
-                    cg_ev,
-                    &mut res_events,
-                    &mut state.modifier_state,
-                )
-                .unwrap_or_else(|e| {
                     log::error!("Failed to get events: {e}");
                 });
 
                 // Keep (hidden) cursor at the edge of the screen
-                if matches!(
+                if matches!(event_type, CGEventType::MouseMoved) {
-                    event_type,
+                    state.reset_mouse_position(cg_ev).unwrap_or_else(|e| {
-                    CGEventType::MouseMoved
+                        log::error!("Failed to reset mouse position: {e}");
-                        | CGEventType::LeftMouseDragged
+                    })
-                        | CGEventType::RightMouseDragged
-                        | CGEventType::OtherMouseDragged
-                ) {
-                    state.reset_cursor().unwrap_or_else(|e| log::warn!("{e}"));
                 }
-            } else if matches!(event_type, CGEventType::MouseMoved) {
+            }
-                // Did we cross a barrier?
+            // Did we cross a barrier?
+            else if matches!(event_type, CGEventType::MouseMoved) {
                 if let Some(new_pos) = state.crossed(cg_ev) {
-                    capture_position = Some(new_pos);
+                    pos = Some(new_pos);
-                    state
-                        .start_capture(cg_ev, new_pos)
-                        .unwrap_or_else(|e| log::warn!("{e}"));
                     res_events.push(CaptureEvent::Begin);
                     notify_tx
                         .blocking_send(ProducerEvent::Grab(new_pos))
@@ -417,7 +388,7 @@ fn create_event_tap<'a>(
                 }
             }
 
-            if let Some(pos) = capture_position {
+            if let Some(pos) = pos {
                 res_events.iter().for_each(|e| {
                     // error must be ignored, since the event channel
                     // may already be closed when the InputCapture instance is dropped.
@@ -522,7 +493,10 @@ impl MacOSInputCapture {
                             log::error!("Failed to handle producer event: {e}");
                         })
                     }
-                    _ = &mut tap_exit_rx => break,
+
+                    _ = &mut tap_exit_rx => {
+                        break;
+                    }
                 }
             }
             // show cursor

input-emulation/Cargo.toml

@@ -21,7 +21,6 @@ tokio = { version = "1.32.0", features = [
     "rt",
     "sync",
     "signal",
-    "time"
 ] }
 once_cell = "1.19.0"
 

input-emulation/src/macos.rs

@@ -10,37 +10,25 @@ use core_graphics::event::{
     ScrollEventUnit,
 };
 use core_graphics::event_source::{CGEventSource, CGEventSourceStateID};
-use input_event::{scancode, Event, KeyboardEvent, PointerEvent, BTN_LEFT, BTN_MIDDLE, BTN_RIGHT};
+use input_event::{scancode, Event, KeyboardEvent, PointerEvent};
 use keycode::{KeyMap, KeyMapping};
 use std::cell::Cell;
 use std::ops::{Index, IndexMut};
 use std::rc::Rc;
 use std::sync::Arc;
-use std::time::{Duration, Instant};
+use std::time::Duration;
 use tokio::{sync::Notify, task::JoinHandle};
 
 use super::error::MacOSEmulationCreationError;
 
 const DEFAULT_REPEAT_DELAY: Duration = Duration::from_millis(500);
 const DEFAULT_REPEAT_INTERVAL: Duration = Duration::from_millis(32);
-const DOUBLE_CLICK_INTERVAL: Duration = Duration::from_millis(500);
 
 pub(crate) struct MacOSEmulation {
-    /// global event source for all events
     event_source: CGEventSource,
-    /// task handle for key repeats
     repeat_task: Option<JoinHandle<()>>,
-    /// current state of the mouse buttons
     button_state: ButtonState,
-    /// button previously pressed
-    previous_button: Option<CGMouseButton>,
-    /// timestamp of previous click (button down)
-    previous_button_click: Option<Instant>,
-    /// click state, i.e. number of clicks in quick succession
-    button_click_state: i64,
-    /// current modifier state
     modifier_state: Rc<Cell<XMods>>,
-    /// notify to cancel key repeats
     notify_repeat_task: Arc<Notify>,
 }
 
@@ -86,9 +74,6 @@ impl MacOSEmulation {
         Ok(Self {
             event_source,
             button_state,
-            previous_button: None,
-            previous_button_click: None,
-            button_click_state: 0,
             repeat_task: None,
             notify_repeat_task: Arc::new(Notify::new()),
             modifier_state: Rc::new(Cell::new(XMods::empty())),
@@ -104,9 +89,6 @@ impl MacOSEmulation {
         // there can only be one repeating key and it's
         // always the last to be pressed
         self.cancel_repeat_task().await;
-        // initial key event
-        key_event(self.event_source.clone(), key, 1, self.modifier_state.get());
-        // repeat task
         let event_source = self.event_source.clone();
         let notify = self.notify_repeat_task.clone();
         let modifiers = self.modifier_state.clone();
@@ -242,167 +224,150 @@ impl Emulation for MacOSEmulation {
         event: Event,
         _handle: EmulationHandle,
     ) -> Result<(), EmulationError> {
-        log::trace!("{event:?}");
         match event {
-            Event::Pointer(pointer_event) => {
+            Event::Pointer(pointer_event) => match pointer_event {
-                match pointer_event {
+                PointerEvent::Motion { time: _, dx, dy } => {
-                    PointerEvent::Motion { time: _, dx, dy } => {
+                    let mut mouse_location = match self.get_mouse_location() {
-                        let mut mouse_location = match self.get_mouse_location() {
+                        Some(l) => l,
-                            Some(l) => l,
+                        None => {
-                            None => {
+                            log::warn!("could not get mouse location!");
-                                log::warn!("could not get mouse location!");
+                            return Ok(());
-                                return Ok(());
-                            }
-                        };
-
-                        let (new_mouse_x, new_mouse_y) =
-                            clamp_to_screen_space(mouse_location.x, mouse_location.y, dx, dy);
-
-                        mouse_location.x = new_mouse_x;
-                        mouse_location.y = new_mouse_y;
-
-                        let mut event_type = CGEventType::MouseMoved;
-                        if self.button_state.left {
-                            event_type = CGEventType::LeftMouseDragged
-                        } else if self.button_state.right {
-                            event_type = CGEventType::RightMouseDragged
-                        } else if self.button_state.center {
-                            event_type = CGEventType::OtherMouseDragged
-                        };
-                        let event = match CGEvent::new_mouse_event(
-                            self.event_source.clone(),
-                            event_type,
-                            mouse_location,
-                            CGMouseButton::Left,
-                        ) {
-                            Ok(e) => e,
-                            Err(_) => {
-                                log::warn!("mouse event creation failed!");
-                                return Ok(());
-                            }
-                        };
-                        event.set_integer_value_field(EventField::MOUSE_EVENT_DELTA_X, dx as i64);
-                        event.set_integer_value_field(EventField::MOUSE_EVENT_DELTA_Y, dy as i64);
-                        event.post(CGEventTapLocation::HID);
-                    }
-                    PointerEvent::Button {
-                        time: _,
-                        button,
-                        state,
-                    } => {
-                        let (event_type, mouse_button) = match (button, state) {
-                            (BTN_LEFT, 1) => (CGEventType::LeftMouseDown, CGMouseButton::Left),
-                            (BTN_LEFT, 0) => (CGEventType::LeftMouseUp, CGMouseButton::Left),
-                            (BTN_RIGHT, 1) => (CGEventType::RightMouseDown, CGMouseButton::Right),
-                            (BTN_RIGHT, 0) => (CGEventType::RightMouseUp, CGMouseButton::Right),
-                            (BTN_MIDDLE, 1) => (CGEventType::OtherMouseDown, CGMouseButton::Center),
-                            (BTN_MIDDLE, 0) => (CGEventType::OtherMouseUp, CGMouseButton::Center),
-                            _ => {
-                                log::warn!("invalid button event: {button},{state}");
-                                return Ok(());
-                            }
-                        };
-                        // store button state
-                        self.button_state[mouse_button] = state == 1;
-
-                        // update previous button state
-                        if state == 1 {
-                            if self.previous_button.is_some_and(|b| b.eq(&mouse_button))
-                                && self
-                                    .previous_button_click
-                                    .is_some_and(|i| i.elapsed() < DOUBLE_CLICK_INTERVAL)
-                            {
-                                self.button_click_state += 1;
-                            } else {
-                                self.button_click_state = 1;
-                            }
-                            self.previous_button = Some(mouse_button);
-                            self.previous_button_click = Some(Instant::now());
                         }
+                    };
 
-                        log::debug!("click_state: {}", self.button_click_state);
+                    let (new_mouse_x, new_mouse_y) =
-                        let location = self.get_mouse_location().unwrap();
+                        clamp_to_screen_space(mouse_location.x, mouse_location.y, dx, dy);
-                        let event = match CGEvent::new_mouse_event(
-                            self.event_source.clone(),
-                            event_type,
-                            location,
-                            mouse_button,
-                        ) {
-                            Ok(e) => e,
-                            Err(()) => {
-                                log::warn!("mouse event creation failed!");
-                                return Ok(());
-                            }
-                        };
-                        event.set_integer_value_field(
-                            EventField::MOUSE_EVENT_CLICK_STATE,
-                            self.button_click_state,
-                        );
-                        event.post(CGEventTapLocation::HID);
-                    }
-                    PointerEvent::Axis {
-                        time: _,
-                        axis,
-                        value,
-                    } => {
-                        let value = value as i32;
-                        let (count, wheel1, wheel2, wheel3) = match axis {
-                            0 => (1, value, 0, 0), // 0 = vertical => 1 scroll wheel device (y axis)
-                            1 => (2, 0, value, 0), // 1 = horizontal => 2 scroll wheel devices (y, x) -> (0, x)
-                            _ => {
-                                log::warn!("invalid scroll event: {axis}, {value}");
-                                return Ok(());
-                            }
-                        };
-                        let event = match CGEvent::new_scroll_event(
-                            self.event_source.clone(),
-                            ScrollEventUnit::PIXEL,
-                            count,
-                            wheel1,
-                            wheel2,
-                            wheel3,
-                        ) {
-                            Ok(e) => e,
-                            Err(()) => {
-                                log::warn!("scroll event creation failed!");
-                                return Ok(());
-                            }
-                        };
-                        event.post(CGEventTapLocation::HID);
-                    }
-                    PointerEvent::AxisDiscrete120 { axis, value } => {
-                        const LINES_PER_STEP: i32 = 3;
-                        let (count, wheel1, wheel2, wheel3) = match axis {
-                            0 => (1, value / (120 / LINES_PER_STEP), 0, 0), // 0 = vertical => 1 scroll wheel device (y axis)
-                            1 => (2, 0, value / (120 / LINES_PER_STEP), 0), // 1 = horizontal => 2 scroll wheel devices (y, x) -> (0, x)
-                            _ => {
-                                log::warn!("invalid scroll event: {axis}, {value}");
-                                return Ok(());
-                            }
-                        };
-                        let event = match CGEvent::new_scroll_event(
-                            self.event_source.clone(),
-                            ScrollEventUnit::LINE,
-                            count,
-                            wheel1,
-                            wheel2,
-                            wheel3,
-                        ) {
-                            Ok(e) => e,
-                            Err(()) => {
-                                log::warn!("scroll event creation failed!");
-                                return Ok(());
-                            }
-                        };
-                        event.post(CGEventTapLocation::HID);
-                    }
-                }
 
-                // reset button click state in case it's not a button event
+                    mouse_location.x = new_mouse_x;
-                if !matches!(pointer_event, PointerEvent::Button { .. }) {
+                    mouse_location.y = new_mouse_y;
-                    self.button_click_state = 0;
+
+                    let mut event_type = CGEventType::MouseMoved;
+                    if self.button_state.left {
+                        event_type = CGEventType::LeftMouseDragged
+                    } else if self.button_state.right {
+                        event_type = CGEventType::RightMouseDragged
+                    } else if self.button_state.center {
+                        event_type = CGEventType::OtherMouseDragged
+                    };
+                    let event = match CGEvent::new_mouse_event(
+                        self.event_source.clone(),
+                        event_type,
+                        mouse_location,
+                        CGMouseButton::Left,
+                    ) {
+                        Ok(e) => e,
+                        Err(_) => {
+                            log::warn!("mouse event creation failed!");
+                            return Ok(());
+                        }
+                    };
+                    event.set_integer_value_field(EventField::MOUSE_EVENT_DELTA_X, dx as i64);
+                    event.set_integer_value_field(EventField::MOUSE_EVENT_DELTA_Y, dy as i64);
+                    event.post(CGEventTapLocation::HID);
                 }
-            }
+                PointerEvent::Button {
+                    time: _,
+                    button,
+                    state,
+                } => {
+                    let (event_type, mouse_button) = match (button, state) {
+                        (b, 1) if b == input_event::BTN_LEFT => {
+                            (CGEventType::LeftMouseDown, CGMouseButton::Left)
+                        }
+                        (b, 0) if b == input_event::BTN_LEFT => {
+                            (CGEventType::LeftMouseUp, CGMouseButton::Left)
+                        }
+                        (b, 1) if b == input_event::BTN_RIGHT => {
+                            (CGEventType::RightMouseDown, CGMouseButton::Right)
+                        }
+                        (b, 0) if b == input_event::BTN_RIGHT => {
+                            (CGEventType::RightMouseUp, CGMouseButton::Right)
+                        }
+                        (b, 1) if b == input_event::BTN_MIDDLE => {
+                            (CGEventType::OtherMouseDown, CGMouseButton::Center)
+                        }
+                        (b, 0) if b == input_event::BTN_MIDDLE => {
+                            (CGEventType::OtherMouseUp, CGMouseButton::Center)
+                        }
+                        _ => {
+                            log::warn!("invalid button event: {button},{state}");
+                            return Ok(());
+                        }
+                    };
+                    // store button state
+                    self.button_state[mouse_button] = state == 1;
+
+                    let location = self.get_mouse_location().unwrap();
+                    let event = match CGEvent::new_mouse_event(
+                        self.event_source.clone(),
+                        event_type,
+                        location,
+                        mouse_button,
+                    ) {
+                        Ok(e) => e,
+                        Err(()) => {
+                            log::warn!("mouse event creation failed!");
+                            return Ok(());
+                        }
+                    };
+                    event.post(CGEventTapLocation::HID);
+                }
+                PointerEvent::Axis {
+                    time: _,
+                    axis,
+                    value,
+                } => {
+                    let value = value as i32;
+                    let (count, wheel1, wheel2, wheel3) = match axis {
+                        0 => (1, value, 0, 0), // 0 = vertical => 1 scroll wheel device (y axis)
+                        1 => (2, 0, value, 0), // 1 = horizontal => 2 scroll wheel devices (y, x) -> (0, x)
+                        _ => {
+                            log::warn!("invalid scroll event: {axis}, {value}");
+                            return Ok(());
+                        }
+                    };
+                    let event = match CGEvent::new_scroll_event(
+                        self.event_source.clone(),
+                        ScrollEventUnit::PIXEL,
+                        count,
+                        wheel1,
+                        wheel2,
+                        wheel3,
+                    ) {
+                        Ok(e) => e,
+                        Err(()) => {
+                            log::warn!("scroll event creation failed!");
+                            return Ok(());
+                        }
+                    };
+                    event.post(CGEventTapLocation::HID);
+                }
+                PointerEvent::AxisDiscrete120 { axis, value } => {
+                    let (count, wheel1, wheel2, wheel3) = match axis {
+                        0 => (1, value, 0, 0), // 0 = vertical => 1 scroll wheel device (y axis)
+                        1 => (2, 0, value, 0), // 1 = horizontal => 2 scroll wheel devices (y, x) -> (0, x)
+                        _ => {
+                            log::warn!("invalid scroll event: {axis}, {value}");
+                            return Ok(());
+                        }
+                    };
+                    let event = match CGEvent::new_scroll_event(
+                        self.event_source.clone(),
+                        ScrollEventUnit::PIXEL,
+                        count,
+                        wheel1,
+                        wheel2,
+                        wheel3,
+                    ) {
+                        Ok(e) => e,
+                        Err(()) => {
+                            log::warn!("scroll event creation failed!");
+                            return Ok(());
+                        }
+                    };
+                    event.post(CGEventTapLocation::HID);
+                }
+            },
             Event::Keyboard(keyboard_event) => match keyboard_event {
                 KeyboardEvent::Key {
                     time: _,
@@ -416,12 +381,18 @@ impl Emulation for MacOSEmulation {
                             return Ok(());
                         }
                     };
-                    update_modifiers(&self.modifier_state, key, state);
                     match state {
                         // pressed
                         1 => self.spawn_repeat_task(code).await,
                         _ => self.cancel_repeat_task().await,
                     }
+                    update_modifiers(&self.modifier_state, key, state);
+                    key_event(
+                        self.event_source.clone(),
+                        code,
+                        state,
+                        self.modifier_state.get(),
+                    );
                 }
                 KeyboardEvent::Modifiers {
                     depressed,
@@ -445,21 +416,6 @@ impl Emulation for MacOSEmulation {
     async fn terminate(&mut self) {}
 }
 
-trait ButtonEq {
-    fn eq(&self, other: &Self) -> bool;
-}
-
-impl ButtonEq for CGMouseButton {
-    fn eq(&self, other: &Self) -> bool {
-        matches!(
-            (self, other),
-            (CGMouseButton::Left, CGMouseButton::Left)
-                | (CGMouseButton::Right, CGMouseButton::Right)
-                | (CGMouseButton::Center, CGMouseButton::Center)
-        )
-    }
-}
-
 fn update_modifiers(modifiers: &Cell<XMods>, key: u32, state: u8) -> bool {
     if let Ok(key) = scancode::Linux::try_from(key) {
         let mask = match key {