1use crate::{geometry::vector::vec2f, keymap::Keystroke, platform::Event};
2use cocoa::{
3 appkit::{NSEvent, NSEventModifierFlags, NSEventType},
4 base::{id, nil, YES},
5 foundation::NSString as _,
6};
7use std::{ffi::CStr, os::raw::c_char};
8
9impl Event {
10 pub unsafe fn from_native(native_event: id, window_height: Option<f32>) -> Option<Self> {
11 let event_type = native_event.eventType();
12
13 // Filter out event types that aren't in the NSEventType enum.
14 // See https://github.com/servo/cocoa-rs/issues/155#issuecomment-323482792 for details.
15 match event_type as u64 {
16 0 | 21 | 32 | 33 | 35 | 36 | 37 => {
17 return None;
18 }
19 _ => {}
20 }
21
22 match event_type {
23 NSEventType::NSKeyDown => {
24 let modifiers = native_event.modifierFlags();
25 let unmodified_chars = native_event.charactersIgnoringModifiers();
26 let unmodified_chars = CStr::from_ptr(unmodified_chars.UTF8String() as *mut c_char)
27 .to_str()
28 .unwrap();
29
30 let unmodified_chars = if let Some(first_char) = unmodified_chars.chars().next() {
31 use cocoa::appkit::*;
32 const BACKSPACE_KEY: u16 = 0x7f;
33 const ENTER_KEY: u16 = 0x0d;
34 const ESCAPE_KEY: u16 = 0x1b;
35 const TAB_KEY: u16 = 0x09;
36
37 #[allow(non_upper_case_globals)]
38 match first_char as u16 {
39 BACKSPACE_KEY => "backspace",
40 ENTER_KEY => "enter",
41 ESCAPE_KEY => "escape",
42 TAB_KEY => "tab",
43
44 NSUpArrowFunctionKey => "up",
45 NSDownArrowFunctionKey => "down",
46 NSLeftArrowFunctionKey => "left",
47 NSRightArrowFunctionKey => "right",
48 NSPageUpFunctionKey => "pageup",
49 NSPageDownFunctionKey => "pagedown",
50 NSDeleteFunctionKey => "delete",
51 NSF1FunctionKey => "f1",
52 NSF2FunctionKey => "f2",
53 NSF3FunctionKey => "f3",
54 NSF4FunctionKey => "f4",
55 NSF5FunctionKey => "f5",
56 NSF6FunctionKey => "f6",
57 NSF7FunctionKey => "f7",
58 NSF8FunctionKey => "f8",
59 NSF9FunctionKey => "f9",
60 NSF10FunctionKey => "f10",
61 NSF11FunctionKey => "f11",
62 NSF12FunctionKey => "f12",
63
64 _ => unmodified_chars,
65 }
66 } else {
67 return None;
68 };
69
70 let chars = native_event.characters();
71 let chars = CStr::from_ptr(chars.UTF8String() as *mut c_char)
72 .to_str()
73 .unwrap()
74 .into();
75
76 Some(Self::KeyDown {
77 keystroke: Keystroke {
78 ctrl: modifiers.contains(NSEventModifierFlags::NSControlKeyMask),
79 alt: modifiers.contains(NSEventModifierFlags::NSAlternateKeyMask),
80 shift: modifiers.contains(NSEventModifierFlags::NSShiftKeyMask),
81 cmd: modifiers.contains(NSEventModifierFlags::NSCommandKeyMask),
82 key: unmodified_chars.into(),
83 },
84 chars,
85 is_held: native_event.isARepeat() == YES,
86 })
87 }
88 NSEventType::NSLeftMouseDown => {
89 window_height.map(|window_height| Self::LeftMouseDown {
90 position: vec2f(
91 native_event.locationInWindow().x as f32,
92 window_height - native_event.locationInWindow().y as f32,
93 ),
94 cmd: native_event
95 .modifierFlags()
96 .contains(NSEventModifierFlags::NSCommandKeyMask),
97 })
98 }
99 NSEventType::NSLeftMouseUp => window_height.map(|window_height| Self::LeftMouseUp {
100 position: vec2f(
101 native_event.locationInWindow().x as f32,
102 window_height - native_event.locationInWindow().y as f32,
103 ),
104 }),
105 NSEventType::NSLeftMouseDragged => {
106 window_height.map(|window_height| Self::LeftMouseDragged {
107 position: vec2f(
108 native_event.locationInWindow().x as f32,
109 window_height - native_event.locationInWindow().y as f32,
110 ),
111 })
112 }
113 NSEventType::NSScrollWheel => window_height.map(|window_height| Self::ScrollWheel {
114 position: vec2f(
115 native_event.locationInWindow().x as f32,
116 window_height - native_event.locationInWindow().y as f32,
117 ),
118 delta: vec2f(
119 native_event.scrollingDeltaX() as f32,
120 native_event.scrollingDeltaY() as f32,
121 ),
122 precise: native_event.hasPreciseScrollingDeltas() == YES,
123 }),
124 NSEventType::NSMouseMoved => window_height.map(|window_height| Self::MouseMoved {
125 position: vec2f(
126 native_event.locationInWindow().x as f32,
127 window_height - native_event.locationInWindow().y as f32,
128 ),
129 left_mouse_down: NSEvent::pressedMouseButtons(nil) & 1 != 0,
130 }),
131 _ => None,
132 }
133 }
134}