beuvy-runtime 0.1.0

A low-level Bevy UI kit with reusable controls and utility-class styling.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153

use super::transition::color_nearly_equal;
use super::*;
use crate::style::resolve_color_value;
use crate::utility::{UtilityTransitionProperty, UtilityVal, UtilityVisualStylePatch};
use bevy::time::TimeUpdateStrategy;
use bevy::ui::Val::Px;
use std::time::Duration;

fn sample_styles() -> UiStateVisualStyles {
    UiStateVisualStyles {
        base: UtilityVisualStylePatch {
            background_color: Some("var(--color-button-bg)".to_string()),
            text_color: Some("var(--color-button-text)".to_string()),
            border_color: Some("var(--color-panel-subtle-border)".to_string()),
            ..default()
        },
        hover: UtilityVisualStylePatch {
            background_color: Some("var(--color-button-bg-hover)".to_string()),
            ..default()
        },
        active: UtilityVisualStylePatch {
            background_color: Some("var(--color-button-bg-active)".to_string()),
            ..default()
        },
        focus: UtilityVisualStylePatch {
            outline_width: Some(UtilityVal::Px(2.0)),
            outline_color: Some("var(--color-primary)".to_string()),
            ..default()
        },
        disabled: UtilityVisualStylePatch::default(),
    }
}

fn sample_transition_styles() -> UiStateVisualStyles {
    let mut styles = sample_styles();
    styles.base.transition_property = Some(UtilityTransitionProperty::Colors);
    styles.base.transition_duration_ms = Some(150.0);
    styles
}

#[test]
fn active_overrides_hover_and_focus_keeps_outline() {
    let mut app = App::new();
    app.add_plugins(MinimalPlugins);
    app.add_plugins(UiStateStylePlugin);

    let entity = app
        .world_mut()
        .spawn((
            sample_styles(),
            BackgroundColor(Color::NONE),
            BorderColor::all(Color::NONE),
            TextColor(Color::NONE),
            Outline::new(Px(0.0), Px(2.0), Color::NONE),
            crate::focus::UiHovered,
            crate::focus::UiFocused,
            crate::focus::UiPressed,
        ))
        .id();

    app.update();
    app.update();

    let entity_ref = app.world().entity(entity);
    let background = entity_ref.get::<BackgroundColor>().expect("background");
    let outline = entity_ref.get::<Outline>().expect("outline");
    assert_eq!(
        background.0,
        resolve_color_value("var(--color-button-bg-active)").expect("active color")
    );
    assert_eq!(outline.width, Px(2.0));
    assert_eq!(
        outline.color,
        resolve_color_value("var(--color-primary)").expect("primary color")
    );
}

#[test]
fn state_source_uses_parent_state() {
    let mut app = App::new();
    app.add_plugins(MinimalPlugins);
    app.add_plugins(UiStateStylePlugin);

    let parent = app.world_mut().spawn(crate::focus::UiHovered).id();
    let child = app
        .world_mut()
        .spawn((
            sample_styles(),
            UiStateStyleSource(parent),
            TextColor(Color::NONE),
        ))
        .id();

    app.update();
    app.update();

    let text = app
        .world()
        .entity(child)
        .get::<TextColor>()
        .expect("text color");
    assert_eq!(
        text.0,
        resolve_color_value("var(--color-button-text)").expect("text color")
    );
}

#[test]
fn color_transition_reaches_target() {
    let mut app = App::new();
    app.add_plugins(MinimalPlugins);
    app.add_plugins(UiStateStylePlugin);

    let entity = app
        .world_mut()
        .spawn((
            sample_transition_styles(),
            BackgroundColor(resolve_color_value("var(--color-button-bg)").expect("base color")),
        ))
        .id();

    app.update();
    app.world_mut()
        .entity_mut(entity)
        .insert(crate::focus::UiHovered);
    app.update();
    app.update();

    app.insert_resource(TimeUpdateStrategy::ManualDuration(Duration::from_millis(
        75,
    )));
    app.update();
    let mid = app
        .world()
        .entity(entity)
        .get::<BackgroundColor>()
        .expect("background")
        .0;
    let target = resolve_color_value("var(--color-button-bg-hover)").expect("hover color");
    assert!(!color_nearly_equal(mid, target));

    app.insert_resource(TimeUpdateStrategy::ManualDuration(Duration::from_millis(
        100,
    )));
    app.update();
    let final_color = app
        .world()
        .entity(entity)
        .get::<BackgroundColor>()
        .expect("background")
        .0;
    assert!(color_nearly_equal(final_color, target));
}