200 lines
6.9 KiB
Rust
200 lines
6.9 KiB
Rust
use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
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pub fn convert_egui_events(ctx: &egui::Context) -> Vec<KeyEvent> {
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let mut events = Vec::new();
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for event in &ctx.input(|i| i.events.clone()) {
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if let Some(key_event) = convert_event(event) {
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events.push(key_event);
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}
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}
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events
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}
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fn convert_event(event: &egui::Event) -> Option<KeyEvent> {
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match event {
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egui::Event::Key {
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key,
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pressed,
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modifiers,
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..
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} => {
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if !*pressed {
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return None;
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}
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let mods = convert_modifiers(*modifiers);
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// For character keys without ctrl/alt, let Event::Text handle it
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if is_character_key(*key) && !mods.intersects(KeyModifiers::CONTROL | KeyModifiers::ALT) {
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return None;
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}
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let code = convert_key(*key)?;
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Some(KeyEvent::new(code, mods))
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}
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egui::Event::Text(text) => {
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if text.len() == 1 {
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let c = text.chars().next()?;
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if !c.is_control() {
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return Some(KeyEvent::new(KeyCode::Char(c), KeyModifiers::empty()));
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}
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}
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None
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}
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// egui intercepts Ctrl+C/V/X and converts them to these high-level events
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// instead of passing through raw Key events (see egui issue #4065).
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// Synthesize the equivalent KeyEvent so the application's input handler receives them.
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egui::Event::Copy => Some(KeyEvent::new(KeyCode::Char('c'), KeyModifiers::CONTROL)),
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egui::Event::Cut => Some(KeyEvent::new(KeyCode::Char('x'), KeyModifiers::CONTROL)),
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egui::Event::Paste(_) => Some(KeyEvent::new(KeyCode::Char('v'), KeyModifiers::CONTROL)),
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_ => None,
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}
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}
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fn convert_key(key: egui::Key) -> Option<KeyCode> {
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Some(match key {
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egui::Key::ArrowDown => KeyCode::Down,
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egui::Key::ArrowLeft => KeyCode::Left,
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egui::Key::ArrowRight => KeyCode::Right,
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egui::Key::ArrowUp => KeyCode::Up,
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egui::Key::Escape => KeyCode::Esc,
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egui::Key::Tab => KeyCode::Tab,
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egui::Key::Backspace => KeyCode::Backspace,
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egui::Key::Enter => KeyCode::Enter,
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egui::Key::Space => KeyCode::Char(' '),
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egui::Key::Insert => KeyCode::Insert,
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egui::Key::Delete => KeyCode::Delete,
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egui::Key::Home => KeyCode::Home,
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egui::Key::End => KeyCode::End,
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egui::Key::PageUp => KeyCode::PageUp,
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egui::Key::PageDown => KeyCode::PageDown,
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egui::Key::F1 => KeyCode::F(1),
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egui::Key::F2 => KeyCode::F(2),
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egui::Key::F3 => KeyCode::F(3),
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egui::Key::F4 => KeyCode::F(4),
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egui::Key::F5 => KeyCode::F(5),
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egui::Key::F6 => KeyCode::F(6),
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egui::Key::F7 => KeyCode::F(7),
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egui::Key::F8 => KeyCode::F(8),
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egui::Key::F9 => KeyCode::F(9),
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egui::Key::F10 => KeyCode::F(10),
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egui::Key::F11 => KeyCode::F(11),
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egui::Key::F12 => KeyCode::F(12),
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egui::Key::A => KeyCode::Char('a'),
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egui::Key::B => KeyCode::Char('b'),
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egui::Key::C => KeyCode::Char('c'),
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egui::Key::D => KeyCode::Char('d'),
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egui::Key::E => KeyCode::Char('e'),
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egui::Key::F => KeyCode::Char('f'),
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egui::Key::G => KeyCode::Char('g'),
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egui::Key::H => KeyCode::Char('h'),
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egui::Key::I => KeyCode::Char('i'),
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egui::Key::J => KeyCode::Char('j'),
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egui::Key::K => KeyCode::Char('k'),
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egui::Key::L => KeyCode::Char('l'),
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egui::Key::M => KeyCode::Char('m'),
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egui::Key::N => KeyCode::Char('n'),
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egui::Key::O => KeyCode::Char('o'),
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egui::Key::P => KeyCode::Char('p'),
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egui::Key::Q => KeyCode::Char('q'),
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egui::Key::R => KeyCode::Char('r'),
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egui::Key::S => KeyCode::Char('s'),
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egui::Key::T => KeyCode::Char('t'),
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egui::Key::U => KeyCode::Char('u'),
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egui::Key::V => KeyCode::Char('v'),
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egui::Key::W => KeyCode::Char('w'),
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egui::Key::X => KeyCode::Char('x'),
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egui::Key::Y => KeyCode::Char('y'),
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egui::Key::Z => KeyCode::Char('z'),
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egui::Key::Num0 => KeyCode::Char('0'),
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egui::Key::Num1 => KeyCode::Char('1'),
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egui::Key::Num2 => KeyCode::Char('2'),
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egui::Key::Num3 => KeyCode::Char('3'),
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egui::Key::Num4 => KeyCode::Char('4'),
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egui::Key::Num5 => KeyCode::Char('5'),
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egui::Key::Num6 => KeyCode::Char('6'),
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egui::Key::Num7 => KeyCode::Char('7'),
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egui::Key::Num8 => KeyCode::Char('8'),
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egui::Key::Num9 => KeyCode::Char('9'),
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egui::Key::Minus => KeyCode::Char('-'),
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egui::Key::Equals => KeyCode::Char('='),
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egui::Key::OpenBracket => KeyCode::Char('['),
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egui::Key::CloseBracket => KeyCode::Char(']'),
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egui::Key::Semicolon => KeyCode::Char(';'),
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egui::Key::Comma => KeyCode::Char(','),
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egui::Key::Period => KeyCode::Char('.'),
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egui::Key::Slash => KeyCode::Char('/'),
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egui::Key::Backslash => KeyCode::Char('\\'),
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egui::Key::Backtick => KeyCode::Char('`'),
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egui::Key::Quote => KeyCode::Char('\''),
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_ => return None,
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})
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}
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fn convert_modifiers(mods: egui::Modifiers) -> KeyModifiers {
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let mut result = KeyModifiers::empty();
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if mods.shift {
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result |= KeyModifiers::SHIFT;
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}
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if mods.ctrl || mods.command {
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result |= KeyModifiers::CONTROL;
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}
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if mods.alt {
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result |= KeyModifiers::ALT;
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}
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result
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}
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fn is_character_key(key: egui::Key) -> bool {
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matches!(
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key,
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egui::Key::A
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| egui::Key::B
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| egui::Key::C
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| egui::Key::D
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| egui::Key::E
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| egui::Key::F
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| egui::Key::G
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| egui::Key::H
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| egui::Key::I
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| egui::Key::J
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| egui::Key::K
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| egui::Key::L
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| egui::Key::M
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| egui::Key::N
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| egui::Key::O
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| egui::Key::P
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| egui::Key::Q
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| egui::Key::R
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| egui::Key::S
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| egui::Key::T
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| egui::Key::U
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| egui::Key::V
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| egui::Key::W
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| egui::Key::X
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| egui::Key::Y
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| egui::Key::Z
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| egui::Key::Num0
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| egui::Key::Num1
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| egui::Key::Num2
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| egui::Key::Num3
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| egui::Key::Num4
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| egui::Key::Num5
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| egui::Key::Num6
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| egui::Key::Num7
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| egui::Key::Num8
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| egui::Key::Num9
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| egui::Key::Space
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| egui::Key::Minus
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| egui::Key::Equals
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| egui::Key::OpenBracket
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| egui::Key::CloseBracket
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| egui::Key::Semicolon
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| egui::Key::Comma
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| egui::Key::Period
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| egui::Key::Slash
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| egui::Key::Backslash
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| egui::Key::Backtick
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| egui::Key::Quote
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)
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}
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