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

use std::io::Write;
use serde_json::{to_writer, Result};
use std::borrow::Cow;
use settings::{Field, SettingsDescription, Value};
use std::mem::replace;

#[derive(Default, Clone)]
pub struct Component {
    settings: Settings,
}

#[derive(Clone, Serialize, Deserialize)]
#[serde(default)]
pub struct Settings {
    pub text: Text,
}

#[derive(Clone, Serialize, Deserialize)]
pub enum Text {
    Center(String),
    Split(String, String),
}

impl Text {
    pub fn set_center<S: Into<String>>(&mut self, text: S) {
        let text = text.into();
        if let Text::Center(ref mut inner) = *self {
            *inner = text;
        } else {
            *self = Text::Center(text);
        }
    }

    pub fn set_left<S: Into<String>>(&mut self, text: S) {
        let text = text.into();
        if let Text::Split(ref mut inner, _) = *self {
            *inner = text;
        } else {
            *self = Text::Split(text, String::from(""));
        }
    }

    pub fn set_right<S: Into<String>>(&mut self, text: S) {
        let text = text.into();
        if let Text::Split(_, ref mut inner) = *self {
            *inner = text;
        } else {
            *self = Text::Split(String::from(""), text);
        }
    }
}

#[derive(Serialize, Deserialize)]
pub struct State(pub Text);

impl Default for Settings {
    fn default() -> Self {
        Self {
            text: Text::Center(String::from("")),
        }
    }
}

impl State {
    pub fn write_json<W>(&self, writer: W) -> Result<()>
    where
        W: Write,
    {
        to_writer(writer, self)
    }
}

impl Component {
    pub fn new() -> Self {
        Default::default()
    }

    pub fn with_settings(settings: Settings) -> Self {
        Self {
            settings,
            ..Default::default()
        }
    }

    pub fn settings(&self) -> &Settings {
        &self.settings
    }

    pub fn settings_mut(&mut self) -> &mut Settings {
        &mut self.settings
    }

    pub fn name(&self) -> Cow<str> {
        let name: Cow<str> = match self.settings.text {
            Text::Center(ref text) => text.as_str().into(),
            Text::Split(ref left, ref right) => {
                let mut name = String::with_capacity(left.len() + right.len() + 1);
                name.push_str(left);
                if !left.is_empty() && !right.is_empty() {
                    name.push_str(" ");
                }
                name.push_str(right);
                name.into()
            }
        };

        if name.trim().is_empty() {
            "Text".into()
        } else {
            name
        }
    }

    pub fn state(&self) -> State {
        State(self.settings.text.clone())
    }

    pub fn settings_description(&self) -> SettingsDescription {
        let (first, second) = match self.settings.text {
            Text::Center(ref text) => (Field::new("Text".into(), text.to_string().into()), None),
            Text::Split(ref left, ref right) => (
                Field::new("Left".into(), left.to_string().into()),
                Some(Field::new("Right".into(), right.to_string().into())),
            ),
        };

        let mut fields = vec![Field::new("Split".into(), second.is_some().into()), first];

        if let Some(second) = second {
            fields.push(second);
        }

        SettingsDescription::with_fields(fields)
    }

    pub fn set_value(&mut self, index: usize, value: Value) {
        match index {
            0 => {
                self.settings.text = match (value.into_bool().unwrap(), &mut self.settings.text) {
                    (true, &mut Text::Center(ref mut center)) => {
                        Text::Split(replace(center, String::new()), String::new())
                    }
                    (false, &mut Text::Split(ref mut left, ref mut right)) => {
                        let mut value = replace(left, String::new());
                        let right = replace(right, String::new());
                        if !value.is_empty() && !right.is_empty() {
                            value.push(' ');
                        }
                        value.push_str(&right);

                        Text::Center(value)
                    }
                    _ => return,
                };
            }
            1 => match self.settings.text {
                Text::Center(ref mut center) => *center = value.into(),
                Text::Split(ref mut left, _) => *left = value.into(),
            },
            2 => match self.settings.text {
                Text::Center(_) => panic!("Set right text when there's only a center text"),
                Text::Split(_, ref mut right) => *right = value.into(),
            },
            _ => panic!("Unsupported Setting Index"),
        }
    }
}