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
|
use crate::color::Color;
use crate::pointer_btn::PointerBtn;
use crate::text::Align;
use serde::Deserialize;
use serde::Serialize;
use std::io::{Error, ErrorKind, Result};
#[derive(Deserialize, Default)]
pub struct Block {
pub full_text: String,
#[serde(default)]
pub short_text: Option<String>,
#[serde(default)]
pub color: Option<Color>,
#[serde(default)]
pub background: Option<Color>,
#[serde(default)]
pub min_width: Option<MinWidth>,
#[serde(default)]
pub align: Option<Align>,
#[serde(default)]
pub name: Option<String>,
#[serde(default)]
pub instance: Option<String>,
#[serde(default = "def_sep")]
pub separator: bool,
#[serde(default = "def_sep_width")]
pub separator_block_width: u8,
#[serde(default)]
pub markup: Option<String>,
}
fn def_sep() -> bool {
true
}
fn def_sep_width() -> u8 {
9
}
#[derive(Deserialize, Clone)]
#[serde(untagged)]
pub enum MinWidth {
Text(String),
Pixels(u32),
}
#[derive(Serialize, Default)]
pub struct Event<'a> {
pub name: Option<&'a str>,
pub instance: Option<&'a str>,
pub button: PointerBtn,
// Not available on wayland
pub modifiers: Vec<()>,
// I see no reason to have these in the protocol, as a lot depends on font & pango markup
pub x: u8,
pub y: u8,
pub relative_x: u8,
pub relative_y: u8,
pub output_x: u8,
pub output_y: u8,
pub width: u8,
pub height: u8,
}
#[derive(Deserialize, Clone, Copy)]
#[serde(deny_unknown_fields)]
pub struct JsonHeader {
version: u8,
#[serde(default)]
#[allow(dead_code)]
stop_signal: i32,
#[serde(default)]
#[allow(dead_code)]
cont_signal: i32,
#[serde(default)]
click_events: bool,
}
pub enum Protocol {
Unknown,
PlainText(Option<String>),
JsonNotStarted(JsonHeader),
Json(JsonHeader, Option<Vec<Block>>),
}
impl Protocol {
pub fn process_line(&mut self, line: String) -> Result<()> {
match self {
Self::Unknown => {
if let Ok(header) = serde_json::from_str::<JsonHeader>(&line) {
if header.version == 1 {
*self = Protocol::JsonNotStarted(header);
return Ok(());
}
}
*self = Self::PlainText(Some(line))
}
Self::PlainText(s) => *s = Some(line),
Self::JsonNotStarted(header) => {
let line = line.trim();
if !line.is_empty() {
if !line.starts_with('[') && line.is_empty() {
return Err(Error::new(ErrorKind::InvalidData, "Expected '['"));
}
*self = Self::Json(*header, None);
self.process_line(line[1..].to_owned())?;
}
}
Self::Json(_, blocks) => {
let line = line.trim();
if !line.is_empty() {
if !line.ends_with(',') {
return Err(Error::new(ErrorKind::InvalidData, "Expected ','"));
}
*blocks = match serde_json::from_str::<Vec<Block>>(&line[..(line.len() - 1)]) {
Ok(b) => Some(b),
Err(e) => {
return Err(Error::new(
ErrorKind::InvalidData,
format!("Invalid JSON: {e}"),
))
}
};
}
}
}
Ok(())
}
pub fn get_blocks(&mut self) -> Option<Vec<Block>> {
match self {
Self::Unknown => None,
Self::PlainText(text) => Some(vec![Block {
full_text: text.take()?,
..Default::default()
}]),
Self::JsonNotStarted(_) => None,
Self::Json(_, blocks) => blocks.take(),
}
}
pub fn supports_clicks(&self) -> bool {
match self {
Self::JsonNotStarted(h) => h.click_events,
Self::Json(h, _) => h.click_events,
_ => false,
}
}
}
|
