use crate::{ geometry::vector::vec2f, keymap::Keystroke, platform::{Event, NavigationDirection}, KeyDownEvent, KeyUpEvent, ModifiersChangedEvent, MouseButton, MouseEvent, MouseMovedEvent, ScrollWheelEvent, }; use cocoa::{ appkit::{NSEvent, NSEventModifierFlags, NSEventType}, base::{id, YES}, foundation::NSString as _, }; use std::{borrow::Cow, ffi::CStr, os::raw::c_char}; pub fn key_to_native(key: &str) -> Cow { use cocoa::appkit::*; let code = match key { "backspace" => 0x7F, "up" => NSUpArrowFunctionKey, "down" => NSDownArrowFunctionKey, "left" => NSLeftArrowFunctionKey, "right" => NSRightArrowFunctionKey, "pageup" => NSPageUpFunctionKey, "pagedown" => NSPageDownFunctionKey, "delete" => NSDeleteFunctionKey, "f1" => NSF1FunctionKey, "f2" => NSF2FunctionKey, "f3" => NSF3FunctionKey, "f4" => NSF4FunctionKey, "f5" => NSF5FunctionKey, "f6" => NSF6FunctionKey, "f7" => NSF7FunctionKey, "f8" => NSF8FunctionKey, "f9" => NSF9FunctionKey, "f10" => NSF10FunctionKey, "f11" => NSF11FunctionKey, "f12" => NSF12FunctionKey, _ => return Cow::Borrowed(key), }; Cow::Owned(String::from_utf16(&[code]).unwrap()) } impl Event { pub unsafe fn from_native(native_event: id, window_height: Option) -> Option { let event_type = native_event.eventType(); // Filter out event types that aren't in the NSEventType enum. // See https://github.com/servo/cocoa-rs/issues/155#issuecomment-323482792 for details. match event_type as u64 { 0 | 21 | 32 | 33 | 35 | 36 | 37 => { return None; } _ => {} } match event_type { NSEventType::NSFlagsChanged => { let modifiers = native_event.modifierFlags(); let ctrl = modifiers.contains(NSEventModifierFlags::NSControlKeyMask); let alt = modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask); let shift = modifiers.contains(NSEventModifierFlags::NSShiftKeyMask); let cmd = modifiers.contains(NSEventModifierFlags::NSCommandKeyMask); Some(Self::ModifiersChanged(ModifiersChangedEvent { ctrl, alt, shift, cmd, })) } NSEventType::NSKeyDown => { let modifiers = native_event.modifierFlags(); let ctrl = modifiers.contains(NSEventModifierFlags::NSControlKeyMask); let alt = modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask); let shift = modifiers.contains(NSEventModifierFlags::NSShiftKeyMask); let cmd = modifiers.contains(NSEventModifierFlags::NSCommandKeyMask); let function = modifiers.contains(NSEventModifierFlags::NSFunctionKeyMask); let (unmodified_chars, input) = get_key_text(native_event, cmd, ctrl, function)?; Some(Self::KeyDown(KeyDownEvent { keystroke: Keystroke { ctrl, alt, shift, cmd, key: unmodified_chars.into(), }, input, is_held: native_event.isARepeat() == YES, })) } NSEventType::NSKeyUp => { let modifiers = native_event.modifierFlags(); let ctrl = modifiers.contains(NSEventModifierFlags::NSControlKeyMask); let alt = modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask); let shift = modifiers.contains(NSEventModifierFlags::NSShiftKeyMask); let cmd = modifiers.contains(NSEventModifierFlags::NSCommandKeyMask); let function = modifiers.contains(NSEventModifierFlags::NSFunctionKeyMask); let (unmodified_chars, input) = get_key_text(native_event, cmd, ctrl, function)?; Some(Self::KeyUp(KeyUpEvent { keystroke: Keystroke { ctrl, alt, shift, cmd, key: unmodified_chars.into(), }, input, })) } NSEventType::NSLeftMouseDown | NSEventType::NSRightMouseDown | NSEventType::NSOtherMouseDown => { let button = match native_event.buttonNumber() { 0 => MouseButton::Left, 1 => MouseButton::Right, 2 => MouseButton::Middle, 3 => MouseButton::Navigate(NavigationDirection::Back), 4 => MouseButton::Navigate(NavigationDirection::Forward), // Other mouse buttons aren't tracked currently _ => return None, }; let modifiers = native_event.modifierFlags(); window_height.map(|window_height| { Self::MouseDown(MouseEvent { button, position: vec2f( native_event.locationInWindow().x as f32, window_height - native_event.locationInWindow().y as f32, ), ctrl: modifiers.contains(NSEventModifierFlags::NSControlKeyMask), alt: modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask), shift: modifiers.contains(NSEventModifierFlags::NSShiftKeyMask), cmd: modifiers.contains(NSEventModifierFlags::NSCommandKeyMask), click_count: native_event.clickCount() as usize, }) }) } NSEventType::NSLeftMouseUp | NSEventType::NSRightMouseUp | NSEventType::NSOtherMouseUp => { let button = match native_event.buttonNumber() { 0 => MouseButton::Left, 1 => MouseButton::Right, 2 => MouseButton::Middle, 3 => MouseButton::Navigate(NavigationDirection::Back), 4 => MouseButton::Navigate(NavigationDirection::Forward), // Other mouse buttons aren't tracked currently _ => return None, }; window_height.map(|window_height| { let modifiers = native_event.modifierFlags(); Self::MouseUp(MouseEvent { button, position: vec2f( native_event.locationInWindow().x as f32, window_height - native_event.locationInWindow().y as f32, ), ctrl: modifiers.contains(NSEventModifierFlags::NSControlKeyMask), alt: modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask), shift: modifiers.contains(NSEventModifierFlags::NSShiftKeyMask), cmd: modifiers.contains(NSEventModifierFlags::NSCommandKeyMask), click_count: native_event.clickCount() as usize, }) }) } NSEventType::NSScrollWheel => window_height.map(|window_height| { Self::ScrollWheel(ScrollWheelEvent { position: vec2f( native_event.locationInWindow().x as f32, window_height - native_event.locationInWindow().y as f32, ), delta: vec2f( native_event.scrollingDeltaX() as f32, native_event.scrollingDeltaY() as f32, ), precise: native_event.hasPreciseScrollingDeltas() == YES, }) }), NSEventType::NSLeftMouseDragged | NSEventType::NSRightMouseDragged | NSEventType::NSOtherMouseDragged => { let pressed_button = match native_event.buttonNumber() { 0 => MouseButton::Left, 1 => MouseButton::Right, 2 => MouseButton::Middle, 3 => MouseButton::Navigate(NavigationDirection::Back), 4 => MouseButton::Navigate(NavigationDirection::Forward), // Other mouse buttons aren't tracked currently _ => return None, }; window_height.map(|window_height| { let modifiers = native_event.modifierFlags(); Self::MouseMoved(MouseMovedEvent { pressed_button: Some(pressed_button), position: vec2f( native_event.locationInWindow().x as f32, window_height - native_event.locationInWindow().y as f32, ), ctrl: modifiers.contains(NSEventModifierFlags::NSControlKeyMask), alt: modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask), shift: modifiers.contains(NSEventModifierFlags::NSShiftKeyMask), cmd: modifiers.contains(NSEventModifierFlags::NSCommandKeyMask), }) }) } NSEventType::NSMouseMoved => window_height.map(|window_height| { let modifiers = native_event.modifierFlags(); Self::MouseMoved(MouseMovedEvent { position: vec2f( native_event.locationInWindow().x as f32, window_height - native_event.locationInWindow().y as f32, ), pressed_button: None, ctrl: modifiers.contains(NSEventModifierFlags::NSControlKeyMask), alt: modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask), shift: modifiers.contains(NSEventModifierFlags::NSShiftKeyMask), cmd: modifiers.contains(NSEventModifierFlags::NSCommandKeyMask), }) }), _ => None, } } } unsafe fn get_key_text( native_event: id, cmd: bool, ctrl: bool, function: bool, ) -> Option<(&'static str, Option)> { let unmodified_chars = CStr::from_ptr(native_event.charactersIgnoringModifiers().UTF8String() as *mut c_char) .to_str() .unwrap(); let mut input = None; let first_char = unmodified_chars.chars().next()?; use cocoa::appkit::*; const BACKSPACE_KEY: u16 = 0x7f; const ENTER_KEY: u16 = 0x0d; const NUMPAD_ENTER_KEY: u16 = 0x03; const ESCAPE_KEY: u16 = 0x1b; const TAB_KEY: u16 = 0x09; const SHIFT_TAB_KEY: u16 = 0x19; const SPACE_KEY: u16 = b' ' as u16; #[allow(non_upper_case_globals)] let unmodified_chars = match first_char as u16 { SPACE_KEY => { input = Some(" ".to_string()); "space" } BACKSPACE_KEY => "backspace", ENTER_KEY | NUMPAD_ENTER_KEY => "enter", ESCAPE_KEY => "escape", TAB_KEY => "tab", SHIFT_TAB_KEY => "tab", NSUpArrowFunctionKey => "up", NSDownArrowFunctionKey => "down", NSLeftArrowFunctionKey => "left", NSRightArrowFunctionKey => "right", NSPageUpFunctionKey => "pageup", NSPageDownFunctionKey => "pagedown", NSDeleteFunctionKey => "delete", NSF1FunctionKey => "f1", NSF2FunctionKey => "f2", NSF3FunctionKey => "f3", NSF4FunctionKey => "f4", NSF5FunctionKey => "f5", NSF6FunctionKey => "f6", NSF7FunctionKey => "f7", NSF8FunctionKey => "f8", NSF9FunctionKey => "f9", NSF10FunctionKey => "f10", NSF11FunctionKey => "f11", NSF12FunctionKey => "f12", _ => { if !cmd && !ctrl && !function { input = Some( CStr::from_ptr(native_event.characters().UTF8String() as *mut c_char) .to_str() .unwrap() .into(), ); } unmodified_chars } }; Some((unmodified_chars, input)) }