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Fix IME bug where currently typed characters got copied 

* Closes #3730 

Fix IME: Currently typed characters get copied when switching TextEdit
fields
This commit is contained in:
rustbasic 2024-03-08 18:00:28 +09:00 committed by GitHub
parent 76411b5d74
commit 385daeb354
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2 changed files with 12 additions and 3 deletions
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11
crates/egui/src/widgets/text_edit/builder.rs
View File

@ -940,6 +940,7 @@ fn events(
if !text_mark.is_empty() {
text.insert_text_at(&mut ccursor, text_mark, char_limit);
}
state.ime_cursor_range = cursor_range;
Some(CCursorRange::two(start_cursor, ccursor))
} else {
None
@ -947,12 +948,16 @@ fn events(
}
Event::CompositionEnd(prediction) => {
// CompositionEnd only characters may be typed into TextEdit without trigger CompositionStart first, so do not check `state.has_ime = true` in the following statement.
// CompositionEnd only characters may be typed into TextEdit without trigger CompositionStart first,
// so do not check `state.has_ime = true` in the following statement.
if prediction != "\n" && prediction != "\r" {
state.has_ime = false;
let mut ccursor = text.delete_selected(&cursor_range);
if !prediction.is_empty() {
let mut ccursor;
if !prediction.is_empty() && cursor_range == state.ime_cursor_range {
ccursor = text.delete_selected(&cursor_range);
text.insert_text_at(&mut ccursor, prediction, char_limit);
} else {
ccursor = cursor_range.primary.ccursor;
}
Some(CCursorRange::one(ccursor))
} else {

4
crates/egui/src/widgets/text_edit/state.rs
View File

@ -44,6 +44,10 @@ pub struct TextEditState {
#[cfg_attr(feature = "serde", serde(skip))]
pub(crate) has_ime: bool,
// cursor range for IME candidate.
#[cfg_attr(feature = "serde", serde(skip))]
pub(crate) ime_cursor_range: CursorRange,
// Visual offset when editing singleline text bigger than the width.
#[cfg_attr(feature = "serde", serde(skip))]
pub(crate) singleline_offset: f32,