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
|
use std::collections::{hash_map::Entry, HashMap};
use std::convert::From;
use std::str::FromStr;
use termion::event::Event;
use crate::config::raw::keymap::{AppKeyMappingRaw, CommandKeymap};
use crate::config::{parse_config_or_default, TomlConfigFile};
use crate::error::AppResult;
use crate::key_command::{Command, CommandKeybind};
use crate::traits::ToString;
use crate::util::keyparse::str_to_event;
use super::DEFAULT_CONFIG_FILE_PATH;
pub enum KeymapError {
Conflict,
}
pub type KeyMapping = HashMap<Event, CommandKeybind>;
#[derive(Debug)]
pub struct AppKeyMapping {
pub default_view: KeyMapping,
pub task_view: KeyMapping,
pub help_view: KeyMapping,
}
impl AppKeyMapping {
pub fn new() -> Self {
Self {
default_view: KeyMapping::new(),
task_view: KeyMapping::new(),
help_view: KeyMapping::new(),
}
}
pub fn default_res() -> AppResult<Self> {
let crude: AppKeyMappingRaw = toml::from_str(DEFAULT_CONFIG_FILE_PATH)?;
let keymapping: Self = Self::from(crude);
Ok(keymapping)
}
}
fn command_keymaps_vec_to_map(keymaps: &[CommandKeymap]) -> HashMap<Event, CommandKeybind> {
let mut hashmap = HashMap::new();
for keymap in keymaps {
if keymap.commands.is_empty() {
eprintln!("Keymap `commands` cannot be empty");
continue;
}
let commands: Vec<Command> = keymap
.commands
.iter()
.filter_map(|cmd_str| match Command::from_str(cmd_str) {
Ok(s) => Some(s),
Err(err) => {
eprintln!("Keymap error: {}", err);
None
}
})
.collect();
if commands.len() != keymap.commands.len() {
eprintln!("Failed to parse commands: {:?}", keymap.commands);
continue;
}
let key_events: Vec<Event> = keymap
.keys
.iter()
.filter_map(|s| str_to_event(s.as_str()))
.collect();
if key_events.len() != keymap.keys.len() {
eprintln!("Failed to parse keys: {:?}", keymap.keys);
continue;
}
let command_description = keymap.description.to_owned();
if let Err(err) =
insert_keycommand(&mut hashmap, commands, command_description, &key_events)
{
match err {
KeymapError::Conflict => {
let events_str: Vec<String> =
key_events.iter().map(|e| e.to_string()).collect();
eprintln!("Error: Ambiguous Keymapping: Multiple commands mapped to key sequence {:?} {:?}", events_str, keymap.commands);
}
}
}
}
hashmap
}
impl From<AppKeyMappingRaw> for AppKeyMapping {
fn from(raw: AppKeyMappingRaw) -> Self {
let mut keymaps = Self::new();
keymaps.default_view = command_keymaps_vec_to_map(&raw.default_view.keymap);
keymaps.task_view = command_keymaps_vec_to_map(&raw.task_view.keymap);
keymaps.help_view = command_keymaps_vec_to_map(&raw.help_view.keymap);
keymaps
}
}
impl TomlConfigFile for AppKeyMapping {
fn get_config(file_name: &str) -> Self {
parse_config_or_default::<AppKeyMappingRaw, AppKeyMapping>(file_name)
}
}
impl std::default::Default for AppKeyMapping {
fn default() -> Self {
// This should not fail.
// If it fails then there is a (syntax) error in the default config file
AppKeyMapping::default_res().unwrap()
}
}
fn insert_keycommand(
keymap: &mut KeyMapping,
commands: Vec<Command>,
description: Option<String>,
events: &[Event],
) -> Result<(), KeymapError> {
let num_events = events.len();
if num_events == 0 {
return Ok(());
}
let event = events[0].clone();
if num_events == 1 {
match keymap.entry(event) {
Entry::Occupied(_) => return Err(KeymapError::Conflict),
Entry::Vacant(entry) => entry.insert(CommandKeybind::SimpleKeybind {
commands,
description,
}),
};
return Ok(());
}
match keymap.entry(event) {
Entry::Occupied(mut entry) => match entry.get_mut() {
CommandKeybind::CompositeKeybind(ref mut m) => {
insert_keycommand(m, commands, description, &events[1..])
}
_ => Err(KeymapError::Conflict),
},
Entry::Vacant(entry) => {
let mut new_map = KeyMapping::new();
let result = insert_keycommand(&mut new_map, commands, description, &events[1..]);
if result.is_ok() {
let composite_command = CommandKeybind::CompositeKeybind(new_map);
entry.insert(composite_command);
}
result
}
}
}
|
