-
Notifications
You must be signed in to change notification settings - Fork 14
/
docs-vim.js
185 lines (158 loc) · 4.8 KB
/
docs-vim.js
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
177
178
179
180
181
182
183
184
185
const useQWERTY = false;
const directionalKeys = useQWERTY ? "hjkl" : "dhtn";
vim = {
"mode": "insert", // Keep track of current mode
"num": "", // Keep track of number keys pressed by the user
"currentSequence": "", // Keep track of key sequences
"escapeSequence": useQWERTY ? "jk" : "hn",
"keyMaps" : {
"Backspace": [["ArrowLeft"]],
"x": [["Delete"]],
"b": [["ArrowLeft", true]], // ctrl + <-
"e": [["ArrowRight", true]], // ctrl + ->
// w is same behavior as eeb
"w": [["ArrowRight", true], ["ArrowRight", true], ["ArrowLeft", true]],
"a": [["ArrowRight"]],
"A": [["ArrowDown", true]],
"I": [["ArrowUp", true]],
"$": [["ArrowDown", true]],
"0": [["ArrowUp", true]],
"o": [["ArrowDown", true], ["Enter"]],
"O": [["ArrowUp", true], ["ArrowLeft"], ["Enter"]]
},
"needsInsert": ["a", "A", "I", "o", "O"]
};
vim.keyMaps[directionalKeys[0]] = [["ArrowLeft"]];
vim.keyMaps[directionalKeys[1]] = [["ArrowDown"]];
vim.keyMaps[directionalKeys[2]] = [["ArrowUp"]];
vim.keyMaps[directionalKeys[3]] = [["ArrowRight"]];
vim.addKeyMappings = function (baseMap) {
baseMap[vim.keys.move[0]] = "ArrowLeft";
baseMap[vim.keys.move[1]] = "ArrowDown";
baseMap[vim.keys.move[2]] = "ArrowUp";
baseMap[vim.keys.move[3]] = "ArrowRight";
};
vim.switchToNormalMode = function () {
vim.currentSequence = "";
vim.mode = "normal";
vim.num = "";
docs.setCursorWidth("7px");
};
vim.switchToVisualMode = function () {
vim.currentSequence = "";
vim.mode = "visual";
vim.num = "";
docs.setCursorWidth("7px");
};
vim.switchToInsertMode = function () {
vim.currentSequence = "";
vim.mode = "insert";
vim.num = "";
docs.setCursorWidth("2px");
};
// Called in normal mode.
vim.normal_keydown = function (e) {
if (e.key.match(/F\d+/)) {
// Pass through any function keys.
return true;
}
e.preventDefault();
e.stopPropagation();
if (e.key == "i") {
vim.switchToInsertMode();
return true;
}
if (e.key == "v") {
vim.switchToVisualMode();
return true;
}
if (e.key.match(/\d+/)) {
vim.num += e.key.toString();
}
vim.keyMaps[e.key]?.forEach(([key, ...args]) => {
const numRepeats = parseInt(vim.num) || 1;
for (let i = 0; i < numRepeats; i++) {
docs.pressKey(docs.codeFromKey(key), ...args);
}
vim.num = "";
});
if (vim.needsInsert.includes(e.key)) {
vim.switchToInsertMode();
return true;
}
return false;
};
// Called in visual mode.
vim.visual_keydown = function (e) {
if (e.key.match(/F\d+/)) {
// Pass through any function keys.
return true;
}
if (e.key == "Escape") {
// Escape visual mode.
vim.switchToNormalMode();
}
vim.currentSequence += e.key;
if (vim.currentSequence == vim.escapeSequence) {
e.preventDefault();
e.stopPropagation();
vim.switchToNormalMode();
return false;
}
if (vim.escapeSequence.indexOf(vim.currentSequence) != 0) {
vim.currentSequence = e.key;
}
e.preventDefault();
e.stopPropagation();
if (e.key.match(/\d+/)) {
vim.num += e.key.toString();
}
vim.keyMaps[e.key]?.forEach(([key, ...args]) => {
const numRepeats = parseInt(vim.num) || 1;
for (let i = 0; i < numRepeats; i++) {
if (key.indexOf("Arrow") == 0) {
// get the special keys pressed and default to false
const keyArgs = [...args, false, false].slice(0, 2);
keyArgs[1] = true;
docs.pressKey(docs.codeFromKey(key), ...keyArgs);
} else {
docs.pressKey(docs.codeFromKey(key), ...args);
vim.switchToNormalMode();
}
}
vim.num = "";
});
return false;
};
// Called in insert mode.
vim.insert_keydown = function (e) {
if (e.key == "Escape") {
vim.switchToNormalMode();
}
vim.currentSequence += e.key;
if (vim.currentSequence == vim.escapeSequence) {
e.preventDefault();
e.stopPropagation();
// We need to delete the first character already typed in the escape
// sequence.
for (var i = 0; i < (vim.currentSequence.length - 1); i++) {
docs.backspace();
}
vim.switchToNormalMode();
return false;
}
if (vim.escapeSequence.indexOf(vim.currentSequence) != 0) {
vim.currentSequence = e.key;
}
};
docs.keydown = function (e) {
if (vim.mode == "insert") {
return vim.insert_keydown(e);
}
if (vim.mode == "normal") {
return vim.normal_keydown(e);
}
if (vim.mode == "visual") {
return vim.visual_keydown(e);
}
};