74 lines
2.0 KiB
Rust
74 lines
2.0 KiB
Rust
//! Demonstrates how to match on modifiers like: Control, alt, shift.
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//!
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//! cargo run --example event-match-modifiers
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use crossterm::event::{Event, KeyCode, KeyEvent, KeyEventKind, KeyModifiers};
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fn match_event(read_event: Event) {
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match read_event {
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// Match one one modifier:
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Event::Key(KeyEvent {
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modifiers: KeyModifiers::CONTROL,
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code,
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..
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}) => {
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println!("Control + {:?}", code);
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}
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Event::Key(KeyEvent {
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modifiers: KeyModifiers::SHIFT,
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code,
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..
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}) => {
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println!("Shift + {:?}", code);
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}
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Event::Key(KeyEvent {
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modifiers: KeyModifiers::ALT,
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code,
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..
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}) => {
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println!("Alt + {:?}", code);
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}
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// Match on multiple modifiers:
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Event::Key(KeyEvent {
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code, modifiers, ..
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}) => {
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if modifiers == (KeyModifiers::ALT | KeyModifiers::SHIFT) {
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println!("Alt + Shift {:?}", code);
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} else {
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println!("({:?}) with key: {:?}", modifiers, code)
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}
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}
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_ => {}
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}
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}
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fn main() {
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match_event(Event::Key(KeyEvent {
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modifiers: KeyModifiers::CONTROL,
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code: KeyCode::Char('z'),
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kind: KeyEventKind::Press,
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}));
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match_event(Event::Key(KeyEvent {
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modifiers: KeyModifiers::SHIFT,
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code: KeyCode::Left,
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kind: KeyEventKind::Press,
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}));
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match_event(Event::Key(KeyEvent {
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modifiers: KeyModifiers::ALT,
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code: KeyCode::Delete,
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kind: KeyEventKind::Press,
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}));
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match_event(Event::Key(KeyEvent {
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modifiers: KeyModifiers::ALT | KeyModifiers::SHIFT,
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code: KeyCode::Right,
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kind: KeyEventKind::Press,
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}));
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match_event(Event::Key(KeyEvent {
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modifiers: KeyModifiers::ALT | KeyModifiers::CONTROL,
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code: KeyCode::Home,
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kind: KeyEventKind::Press,
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}));
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}
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