From d775549258a813c4407a672cdbd9060ec42c2136 Mon Sep 17 00:00:00 2001 From: bflatastic Date: Wed, 14 Oct 2026 02:30:28 +0700 Subject: [PATCH] A press outside a field commits what was typed before the press acts --- crates/ui-egui/src/tests_numfields.rs | 32 +++++++++++++++++++++++++++ crates/ui-egui/src/widgets.rs | 9 ++++++++ 2 files changed, 41 insertions(+) diff --git a/crates/ui-egui/src/tests_numfields.rs b/crates/ui-egui/src/tests_numfields.rs index ad516f65..98d8d4b4 100644 --- a/crates/ui-egui/src/tests_numfields.rs +++ b/crates/ui-egui/src/tests_numfields.rs @@ -446,3 +446,35 @@ fn typed_text_is_committed_when_the_focus_moves_away() { } } } + +/// Text typed into a field is committed in the frame of a press elsewhere, before what is drawn +/// after the field (the canvas) acts on the press: a click that selects another object must not +/// get the typed value, even when both objects show the same one. +#[test] +fn a_press_on_the_canvas_commits_to_the_object_being_edited() { + let mut f = Field::new(); + // The object the panel shows; both have the value 100. + let selected = Cell::new(1); + let committed = Cell::new(None); + let draw = |ui: &mut egui::Ui| { + let got = widgets::range_field(ui, "f", 100.0, 0.0..=1000.0, "%", 0, 80.0); + if let Some(v) = got { + committed.set(Some((selected.get(), v))); + } + // The canvas: a press ends text input and selects the other object. + if ui.input(|i| i.pointer.primary_pressed() && i.pointer.interact_pos().is_some_and(|p| p.y > 100.0)) { + ui.memory_mut(|m| m.stop_text_input()); + selected.set(2); + } + got + }; + f.frame(vec![], &draw); + let (field, canvas) = (f.rect.get().center(), Pos2::new(200.0, 180.0)); + f.frame(vec![Event::PointerMoved(field), pointer_button(field, true)], &draw); + f.frame(vec![pointer_button(field, false)], &draw); + f.frame(vec![Event::Text("42".into())], &draw); + f.frame(vec![Event::PointerMoved(canvas), pointer_button(canvas, true)], &draw); + f.frame(vec![pointer_button(canvas, false)], &draw); + f.frame(vec![], &draw); + assert_eq!((committed.get(), selected.get()), (Some((1, 42.0)), 2)); +} diff --git a/crates/ui-egui/src/widgets.rs b/crates/ui-egui/src/widgets.rs index d8fd2d1e..5ce5723b 100644 --- a/crates/ui-egui/src/widgets.rs +++ b/crates/ui-egui/src/widgets.rs @@ -348,6 +348,15 @@ fn select_all_on_focus(ui: &Ui, resp: &Response, text: &str) { fn recessed_text(ui: &mut Ui, id: egui::Id, shown: &str, width: f32, rows: usize) -> (String, Response, Rect) { let t = Tokens::get(ui.ctx()); let editing = ui.memory(|m| m.has_focus(id)); + // A press outside the field ends its editing in this frame, so the text typed is committed + // before the press acts: the canvas, drawn after the panels, may select another object, and a + // frame later the text would be committed to that one. + if editing + && let Some(at) = ui.input(|i| i.pointer.primary_pressed().then(|| i.pointer.interact_pos()).flatten()) + && ui.ctx().read_response(id).is_some_and(|r| !r.rect.contains(at)) + { + ui.memory_mut(|m| m.surrender_focus(id)); + } // When the value changes under a focused field (the slider beside it, a preview, another // field's edit), its text follows: the text typed for the old value would otherwise go back in // on the next Enter, Tab or arrow key (#1457).