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Fix missing modifier events on eframe web, handle physical keys (#8345)

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* realized pressing just modifiers cause no key events on eframe web
when testing https://github.com/emilk/egui/pull/8336
* closes https://github.com/emilk/egui/issues/8308
* part of #3653
This commit is contained in:
Lucas Meurer
2026-07-28 10:52:01 +02:00
committed by GitHub
parent b730815797
commit 5ca01cdbaf
2 changed files with 52 additions and 45 deletions
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24
crates/eframe/src/web/events.rs
View File

@@ -199,12 +199,15 @@ pub(crate) fn on_keydown(event: web_sys::KeyboardEvent, runner: &mut AppRunner)
runner.input.set_modifiers(modifiers);
let key = event.key();
let egui_key = translate_key(&key);
let logical_key = translate_key(&key);
let physical_key = translate_key(&event.code());
if let Some(egui_key) = egui_key {
// Fall back to the physical key so that modifier keys (which have no logical
// `egui::Key`) and non-Latin layouts still produce a `Key` event.
if let Some(active_key) = logical_key.or(physical_key) {
let egui_event = egui::Event::Key {
key: egui_key,
physical_key: None, // TODO(fornwall)
key: active_key,
physical_key,
pressed: true,
repeat: false, // egui will fill this in for us!
modifiers,
@@ -213,11 +216,11 @@ pub(crate) fn on_keydown(event: web_sys::KeyboardEvent, runner: &mut AppRunner)
runner.input.raw.events.push(egui_event);
runner.needs_repaint.repaint_asap();
let prevent_default = should_prevent_default_for_key(runner, &modifiers, egui_key);
let prevent_default = should_prevent_default_for_key(runner, &modifiers, active_key);
if false {
log::debug!(
"On keydown {:?} {egui_key:?}, has_focus: {has_focus}, egui_wants_keyboard: {}, prevent_default: {prevent_default}",
"On keydown {:?} {active_key:?}, has_focus: {has_focus}, egui_wants_keyboard: {}, prevent_default: {prevent_default}",
event.key().as_str(),
runner.egui_ctx().egui_wants_keyboard_input()
);
@@ -291,10 +294,13 @@ pub(crate) fn on_keyup(event: web_sys::KeyboardEvent, runner: &mut AppRunner) {
let mut should_stop_propagation = true;
if let Some(key) = translate_key(&event.key()) {
let logical_key = translate_key(&event.key());
let physical_key = translate_key(&event.code());
if let Some(active_key) = logical_key.or(physical_key) {
let egui_event = egui::Event::Key {
key,
physical_key: None, // TODO(fornwall)
key: active_key,
physical_key,
pressed: false,
repeat: false,
modifiers,

73
crates/egui/src/data/key.rs
View File

@@ -384,7 +384,7 @@ impl Key {
"Escape" | "Esc" => Self::Escape,
"Tab" => Self::Tab,
"Backspace" => Self::Backspace,
"Enter" | "Return" => Self::Enter,
"Enter" | "Return" | "NumpadEnter" => Self::Enter,
"Help" | "Insert" => Self::Insert,
"Delete" => Self::Delete,
@@ -399,19 +399,19 @@ impl Key {
" " | "Space" => Self::Space,
":" | "Colon" => Self::Colon,
"," | "Comma" => Self::Comma,
"-" | "−" | "Minus" => Self::Minus,
"." | "Period" => Self::Period,
"+" | "Plus" => Self::Plus,
"," | "Comma" | "NumpadComma" => Self::Comma,
"-" | "−" | "Minus" | "NumpadSubtract" => Self::Minus,
"." | "Period" | "NumpadDecimal" => Self::Period,
"+" | "Plus" | "NumpadAdd" => Self::Plus,
"=" | "Equal" | "Equals" | "NumpadEqual" => Self::Equals,
";" | "Semicolon" => Self::Semicolon,
"\\" | "Backslash" => Self::Backslash,
"/" | "Slash" => Self::Slash,
"/" | "Slash" | "NumpadDivide" => Self::Slash,
"|" | "Pipe" => Self::Pipe,
"?" | "Questionmark" => Self::Questionmark,
"!" | "Exclamationmark" => Self::Exclamationmark,
"[" | "OpenBracket" => Self::OpenBracket,
"]" | "CloseBracket" => Self::CloseBracket,
"[" | "OpenBracket" | "BracketLeft" => Self::OpenBracket,
"]" | "CloseBracket" | "BracketRight" => Self::CloseBracket,
"{" | "OpenCurlyBracket" => Self::OpenCurlyBracket,
"}" | "CloseCurlyBracket" => Self::CloseCurlyBracket,
"`" | "Backtick" | "Backquote" | "Grave" => Self::Backtick,
@@ -428,32 +428,32 @@ impl Key {
"8" | "Digit8" | "Numpad8" => Self::Num8,
"9" | "Digit9" | "Numpad9" => Self::Num9,
"a" | "A" => Self::A,
"b" | "B" => Self::B,
"c" | "C" => Self::C,
"d" | "D" => Self::D,
"e" | "E" => Self::E,
"f" | "F" => Self::F,
"g" | "G" => Self::G,
"h" | "H" => Self::H,
"i" | "I" => Self::I,
"j" | "J" => Self::J,
"k" | "K" => Self::K,
"l" | "L" => Self::L,
"m" | "M" => Self::M,
"n" | "N" => Self::N,
"o" | "O" => Self::O,
"p" | "P" => Self::P,
"q" | "Q" => Self::Q,
"r" | "R" => Self::R,
"s" | "S" => Self::S,
"t" | "T" => Self::T,
"u" | "U" => Self::U,
"v" | "V" => Self::V,
"w" | "W" => Self::W,
"x" | "X" => Self::X,
"y" | "Y" => Self::Y,
"z" | "Z" => Self::Z,
"a" | "A" | "KeyA" => Self::A,
"b" | "B" | "KeyB" => Self::B,
"c" | "C" | "KeyC" => Self::C,
"d" | "D" | "KeyD" => Self::D,
"e" | "E" | "KeyE" => Self::E,
"f" | "F" | "KeyF" => Self::F,
"g" | "G" | "KeyG" => Self::G,
"h" | "H" | "KeyH" => Self::H,
"i" | "I" | "KeyI" => Self::I,
"j" | "J" | "KeyJ" => Self::J,
"k" | "K" | "KeyK" => Self::K,
"l" | "L" | "KeyL" => Self::L,
"m" | "M" | "KeyM" => Self::M,
"n" | "N" | "KeyN" => Self::N,
"o" | "O" | "KeyO" => Self::O,
"p" | "P" | "KeyP" => Self::P,
"q" | "Q" | "KeyQ" => Self::Q,
"r" | "R" | "KeyR" => Self::R,
"s" | "S" | "KeyS" => Self::S,
"t" | "T" | "KeyT" => Self::T,
"u" | "U" | "KeyU" => Self::U,
"v" | "V" | "KeyV" => Self::V,
"w" | "W" | "KeyW" => Self::W,
"x" | "X" | "KeyX" => Self::X,
"y" | "Y" | "KeyY" => Self::Y,
"z" | "Z" | "KeyZ" => Self::Z,
"F1" => Self::F1,
"F2" => Self::F2,
@@ -499,8 +499,9 @@ impl Key {
"ControlRight" => Self::ControlRight,
"AltLeft" => Self::AltLeft,
"AltRight" => Self::AltRight,
"SuperLeft" => Self::SuperLeft,
"SuperRight" => Self::SuperRight,
"SuperLeft" | "MetaLeft" | "OSLeft" => Self::SuperLeft,
"SuperRight" | "MetaRight" | "OSRight" => Self::SuperRight,
"IntlBackslash" => Self::IntlBackslash,