beuvy 0.1.0

Facade crate for beuvy-runtime plus optional declarative UI authoring.
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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176

use super::{nearest_ancestor, walk_descendants};
use crate::ast::DeclarativeContainerKind;
use crate::runtime::state::{
    DeclarativeContainerSemantic, DeclarativeFormResetMessage, DeclarativeFormSubmitMessage,
};
use crate::value::UiValue;
use beuvy_runtime::button::{Button, ButtonClickMessage, ButtonType};
use beuvy_runtime::input::{InputField, InputSubmitMessage};
use beuvy_runtime::select::Select;
use bevy::prelude::*;

pub(crate) fn handle_form_button_clicks(
    mut button_clicks: MessageReader<ButtonClickMessage>,
    parents: Query<&ChildOf>,
    semantics: Query<&DeclarativeContainerSemantic>,
    children: Query<&Children>,
    buttons: Query<&Button>,
    mut inputs_mut: Query<&mut InputField, Without<Select>>,
    mut selects_mut: Query<&mut Select, Without<InputField>>,
    mut submit_messages: MessageWriter<DeclarativeFormSubmitMessage>,
    mut reset_messages: MessageWriter<DeclarativeFormResetMessage>,
) {
    for click in button_clicks.read() {
        let Ok(button) = buttons.get(click.entity) else {
            continue;
        };
        let Some(form) = nearest_form(click.entity, &parents, &semantics) else {
            continue;
        };
        match button.button_type {
            ButtonType::Submit => {
                submit_messages.write(DeclarativeFormSubmitMessage {
                    entity: form,
                    values: collect_form_values_mut(
                        form,
                        &children,
                        &mut inputs_mut,
                        &mut selects_mut,
                    ),
                });
            }
            ButtonType::Reset => {
                reset_form_values(form, &children, &mut inputs_mut, &mut selects_mut);
                reset_messages.write(DeclarativeFormResetMessage { entity: form });
            }
            ButtonType::Button => {}
        }
    }
}

pub(crate) fn handle_form_input_submits(
    mut input_submits: MessageReader<InputSubmitMessage>,
    parents: Query<&ChildOf>,
    semantics: Query<&DeclarativeContainerSemantic>,
    children: Query<&Children>,
    inputs: Query<&InputField, Without<Select>>,
    selects: Query<&Select, Without<InputField>>,
    mut submit_messages: MessageWriter<DeclarativeFormSubmitMessage>,
) {
    for submit in input_submits.read() {
        let Some(form) = nearest_form(submit.entity, &parents, &semantics) else {
            continue;
        };
        submit_messages.write(DeclarativeFormSubmitMessage {
            entity: form,
            values: collect_form_values(form, &children, &inputs, &selects),
        });
    }
}

fn nearest_form(
    entity: Entity,
    parents: &Query<&ChildOf>,
    semantics: &Query<&DeclarativeContainerSemantic>,
) -> Option<Entity> {
    nearest_ancestor(entity, parents, |candidate| {
        semantics
            .get(candidate)
            .is_ok_and(|semantic| semantic.kind == DeclarativeContainerKind::Form)
    })
}

fn collect_form_values(
    form: Entity,
    children: &Query<&Children>,
    inputs: &Query<&InputField, Without<Select>>,
    selects: &Query<&Select, Without<InputField>>,
) -> std::collections::HashMap<String, UiValue> {
    let mut values = std::collections::HashMap::new();
    walk_descendants(form, children, &mut |entity| {
        if let Ok(input) = inputs.get(entity) {
            let value = match input.input_type {
                beuvy_runtime::input::InputType::Checkbox => UiValue::from(input.checked),
                beuvy_runtime::input::InputType::Radio => {
                    if input.checked {
                        UiValue::from(input.value().to_string())
                    } else {
                        return;
                    }
                }
                beuvy_runtime::input::InputType::Number
                | beuvy_runtime::input::InputType::Range => input
                    .numeric_value()
                    .map(UiValue::from)
                    .unwrap_or_else(|| UiValue::from(input.value().to_string())),
                beuvy_runtime::input::InputType::Text
                | beuvy_runtime::input::InputType::Textarea
                | beuvy_runtime::input::InputType::Password => {
                    UiValue::from(input.value().to_string())
                }
            };
            values.insert(input.name.clone(), value);
            return;
        }
        if let Ok(select) = selects.get(entity) {
            values.insert(select.name.clone(), UiValue::from(select.value.clone()));
        }
    });
    values
}

fn collect_form_values_mut(
    form: Entity,
    children: &Query<&Children>,
    inputs: &mut Query<&mut InputField, Without<Select>>,
    selects: &mut Query<&mut Select, Without<InputField>>,
) -> std::collections::HashMap<String, UiValue> {
    let mut values = std::collections::HashMap::new();
    walk_descendants(form, children, &mut |entity| {
        if let Ok(input) = inputs.get_mut(entity) {
            let value = match input.input_type {
                beuvy_runtime::input::InputType::Checkbox => UiValue::from(input.checked),
                beuvy_runtime::input::InputType::Radio => {
                    if input.checked {
                        UiValue::from(input.value().to_string())
                    } else {
                        return;
                    }
                }
                beuvy_runtime::input::InputType::Number
                | beuvy_runtime::input::InputType::Range => input
                    .numeric_value()
                    .map(UiValue::from)
                    .unwrap_or_else(|| UiValue::from(input.value().to_string())),
                beuvy_runtime::input::InputType::Text
                | beuvy_runtime::input::InputType::Textarea
                | beuvy_runtime::input::InputType::Password => {
                    UiValue::from(input.value().to_string())
                }
            };
            values.insert(input.name.clone(), value);
            return;
        }
        if let Ok(select) = selects.get_mut(entity) {
            values.insert(select.name.clone(), UiValue::from(select.value.clone()));
        }
    });
    values
}

fn reset_form_values(
    form: Entity,
    children: &Query<&Children>,
    inputs: &mut Query<&mut InputField, Without<Select>>,
    selects: &mut Query<&mut Select, Without<InputField>>,
) {
    walk_descendants(form, children, &mut |entity| {
        if let Ok(mut input) = inputs.get_mut(entity) {
            input.reset();
            return;
        }
        if let Ok(mut select) = selects.get_mut(entity) {
            select.value = select.initial_value.clone();
        }
    });
}