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Fix dead-lock in TextEdit on touch-screens (#1118)

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Introduced in https://github.com/emilk/egui/pull/1035

Fixes https://github.com/emilk/egui/issues/1116
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Emil Ernerfeldt 2022-01-15 22:40:53 +01:00 committed by GitHub
parent b2c8cd0867
commit ad5418777d
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2 changed files with 3 additions and 2 deletions
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2
CHANGELOG.md
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@ -13,7 +13,7 @@ NOTE: [`epaint`](epaint/CHANGELOG.md), [`eframe`](eframe/CHANGELOG.md), [`egui_w
### Changed 🔧
* ⚠️ `Context::input` and `Ui::input` now locks a mutex. This can lead to a dead-lock is used in an `if let` binding!
* `if let Some(pos) = ui.input().pointer.latest_pos()` and similar must now be rewritten on two lines, or with added `{}` around the righ-hand-side.
* `if let Some(pos) = ui.input().pointer.latest_pos()` and similar must now be rewritten on two lines.
* Search for this problem in your code using the regex `if let .*input`.
* Renamed `CtxRef` to `Context` ([#1050](https://github.com/emilk/egui/pull/1050)).
* `Context` can now be cloned and stored between frames ([#1050](https://github.com/emilk/egui/pull/1050)).

3
egui/src/widgets/text_edit/builder.rs
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@ -390,7 +390,8 @@ impl<'t> TextEdit<'t> {
// dragging select text, or scroll the enclosing `ScrollArea` (if any)?
// Since currently copying selected text in not supported on `egui_web`,
// we prioritize touch-scrolling:
let allow_drag_to_select = !ui.input().any_touches() || ui.memory().has_focus(id);
let any_touches = ui.input().any_touches(); // separate line to avoid double-locking the same mutex
let allow_drag_to_select = !any_touches || ui.memory().has_focus(id);
let sense = if interactive {
if allow_drag_to_select {