In TextLayout, when deleting all TextSpans, TextLayout still retains the last text #19657
Description
Bevy version
v0.16.1 and current main
What you did
When I wanted to make a small Text Input, I found that deleting all TextSpans would still keep the last character.
What went wrong
When deleting all TextSpan, shouldn't it be blank?
Additional information
When deleting all TextSpans, the last character will be left, white
use bevy::input::common_conditions::input_just_pressed;
use bevy::prelude::*;
fn main() {
App::new()
.add_plugins(DefaultPlugins)
// .add_plugins(dev_tools::plugin)
.add_systems(Startup, setup)
.add_systems(
Update,
delete.run_if(input_just_pressed(KeyCode::Backspace)),
)
.run();
}
fn setup(mut commands: Commands) {
commands.spawn(Camera2d);
commands.spawn((
Node {
width: Val::Percent(100.0),
height: Val::Percent(100.0),
justify_content: JustifyContent::Center,
align_items: AlignItems::Center,
..default()
},
BackgroundColor(Srgba::GREEN.into()),
children![(
Text::default(),
TextLayout::default(),
TextFont {
font_size: 60.0,
..Default::default()
},
TextColor(Srgba::BLACK.into()),
TextRoot,
children![
(
TextSpan::new("1"),
TextFont {
font_size: 60.0,
..Default::default()
},
TextColor(Srgba::BLACK.into()),
),
(
TextSpan::new("2"),
TextFont {
font_size: 60.0,
..Default::default()
},
TextColor(Srgba::BLACK.into()),
),
(
TextSpan::new("3"),
TextFont {
font_size: 60.0,
..Default::default()
},
TextColor(Srgba::BLACK.into()),
),
]
)],
));
}
fn delete(mut commands: Commands, texts: Single<&Children, With<TextRoot>>) {
let children = texts.into_inner();
if let Some(t) = children.last() {
commands.entity(*t).despawn();
}
}
#[derive(Component, Reflect, Debug)]
#[reflect(Component)]
struct TextRoot;