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

use derive_more::Display;
use yew::prelude::*;

#[derive(Clone, Debug, Properties, PartialEq)]
pub struct FieldProps {
    #[prop_or_default]
    pub children: Children,
    #[prop_or_default]
    pub classes: Classes,
    /// A text label for the field.
    #[prop_or_default]
    pub label: Option<String>,
    /// Extra classes for the label container.
    #[prop_or_default]
    pub label_classes: Classes,
    /// A help message for the field.
    #[prop_or_default]
    pub help: Option<String>,
    /// Extra classes for the help message container.
    #[prop_or_default]
    pub help_classes: Classes,
    /// A convenience bool to add the `is-danger` class to the help classes when `true`.
    #[prop_or_default]
    pub help_has_error: bool,
    /// Has icons on the left of the field's controls.
    #[prop_or_default]
    pub icons_left: bool,
    /// Has icons on the right of the field's controls.
    #[prop_or_default]
    pub icons_right: bool,
    /// Allow addons to the field's controls.
    #[prop_or_default]
    pub addons: bool,
    /// Alignment for the field's addons.
    #[prop_or_default]
    pub addons_align: Option<AddonsAlign>,
    /// All controls in this field should be grouped.
    #[prop_or_default]
    pub grouped: bool,
    /// Alignment for grouped controls.
    #[prop_or_default]
    pub grouped_align: Option<GroupedAlign>,
    /// Allow the grouped controls to span multiple lines.
    #[prop_or_default]
    pub multiline: bool,
    /// Make this a horizontal field.
    #[prop_or_default]
    pub horizontal: bool,
}

/// A container for form controls
#[function_component(Field)]
pub fn field(props: &FieldProps) -> Html {
    let class = classes!(
        "field",
        props.classes.clone(),
        props.icons_left.then_some("has-icons-left"),
        props.icons_right.then_some("has-icons-right"),
        props.addons.then_some("has-addons"),
        props.grouped.then_some("is-grouped"),
        props.multiline.then_some("is-multiline"),
        props.addons_align.as_ref().map(|align| align.to_string()),
        props.grouped_align.as_ref().map(|align| align.to_string()),
    );

    // Build the label if label content is provided.
    let label = match &props.label {
        Some(label_content) => {
            if props.label_classes.is_empty() {
                if props.horizontal {
                    html! {<div class="field-label"><label class="label">{label_content.clone()}</label></div>}
                } else {
                    html! {<label class="label">{label_content.clone()}</label>}
                }
            } else {
                let mut label_classes = props.label_classes.clone();
                if props.horizontal {
                    label_classes.push("field-label");
                    html! {
                        <div class={label_classes}>
                            <label class="label">{label_content.clone()}</label>
                        </div>
                    }
                } else {
                    label_classes.push("label");
                    html! {<label class={label_classes}>{label_content.clone()}</label>}
                }
            }
        }
        None => html! {},
    };

    // Build the help label if present.
    let help = match &props.help {
        Some(help_content) => {
            if props.help_classes.is_empty() {
                let class = classes!("help", props.help_has_error.then_some("is-danger"));
                html! {<label {class}>{help_content.clone()}</label>}
            } else {
                let class = classes!("help", props.help_classes.clone(), props.help_has_error.then_some("is-danger"));
                html! {<label {class}>{help_content.clone()}</label>}
            }
        }
        None => html! {},
    };

    // Build the body section.
    let body = if props.horizontal {
        html! {<div class="field-body">{props.children.clone()}</div>}
    } else {
        html! {<>{props.children.clone()}</>}
    };

    html! {
        <div {class}>
            {label}
            {body}
            {help}
        </div>
    }
}

/// The two alignment options available for field addons.
///
/// https://bulma.io/documentation/form/general/
#[derive(Clone, Debug, Display, PartialEq, Eq)]
#[display(fmt = "has-addons-{}")]
pub enum AddonsAlign {
    #[display(fmt = "centered")]
    Centered,
    #[display(fmt = "right")]
    Right,
}

/// The two alignment options available for grouped field controls.
///
/// https://bulma.io/documentation/form/general/
#[derive(Clone, Debug, Display, PartialEq, Eq)]
#[display(fmt = "is-grouped-{}")]
pub enum GroupedAlign {
    #[display(fmt = "centered")]
    Centered,
    #[display(fmt = "right")]
    Right,
}

/// The three sizes available for horizontal field labels.
///
/// https://bulma.io/documentation/form/general/#horizontal-form
#[derive(Clone, Debug, Display, PartialEq, Eq)]
#[display(fmt = "is-{}")]
pub enum LabelSize {
    #[display(fmt = "small")]
    Small,
    #[display(fmt = "medium")]
    Medium,
    #[display(fmt = "large")]
    Large,
}