webapp/src/ts/keyboard.ts
2024-02-02 20:28:01 -05:00

415 lines
13 KiB
TypeScript

// Pulled a bunch of functions out of the guac source code to get a keysym
// and then a wrapper
// shitty but it works so /shrug
// THIS SUCKS SO BAD AND I HATE IT PLEASE REWRITE ALL OF THIS
export default function GetKeysym(
keyCode: number,
key: string,
location: number
): number | null {
let keysym =
keysym_from_key_identifier(key, location) ||
keysym_from_keycode(keyCode, location);
return keysym;
}
function keysym_from_key_identifier(identifier: string, location: number): number | null {
if (!identifier) return null;
let typedCharacter: string | undefined;
// If identifier is U+xxxx, decode Unicode character
const unicodePrefixLocation = identifier.indexOf("U+");
if (unicodePrefixLocation >= 0) {
const hex = identifier.substring(unicodePrefixLocation + 2);
typedCharacter = String.fromCharCode(parseInt(hex, 16));
} else if (identifier.length === 1) typedCharacter = identifier;
else return get_keysym(keyidentifier_keysym[identifier], location);
if (!typedCharacter) return null;
const codepoint = typedCharacter.charCodeAt(0);
return keysym_from_charcode(codepoint);
}
function get_keysym(keysyms: number[] | null, location: number): number | null {
if (!keysyms) return null;
return keysyms[location] || keysyms[0];
}
function keysym_from_charcode(codepoint: number): number | null {
if (isControlCharacter(codepoint)) return 0xff00 | codepoint;
if (codepoint >= 0x0000 && codepoint <= 0x00ff) return codepoint;
if (codepoint >= 0x0100 && codepoint <= 0x10ffff) return 0x01000000 | codepoint;
return null;
}
function isControlCharacter(codepoint: number): boolean {
return codepoint <= 0x1f || (codepoint >= 0x7f && codepoint <= 0x9f);
}
function keysym_from_keycode(keyCode: number, location: number): number | null {
return get_keysym(keycodeKeysyms[keyCode], location);
}
function key_identifier_sane(keyCode: number, keyIdentifier: string): boolean {
if (!keyIdentifier) return false;
const unicodePrefixLocation = keyIdentifier.indexOf("U+");
if (unicodePrefixLocation === -1) return true;
const codepoint = parseInt(keyIdentifier.substring(unicodePrefixLocation + 2), 16);
if (keyCode !== codepoint) return true;
if ((keyCode >= 65 && keyCode <= 90) || (keyCode >= 48 && keyCode <= 57)) return true;
return false;
}
export function OSK_buttonToKeysym(button: string): number | null {
const keyMapping = OSK_keyMappings.find((mapping) => mapping.includes(button));
if (keyMapping) {
const [, keyCode, keyIdentifier, key, location] = keyMapping;
return GetKeysym(keyCode, key, location);
}
return null;
}
interface KeyIdentifierKeysym {
[key: string]: number[] | null;
}
interface KeyCodeKeysyms {
[key: number]: (number[] | null);
}
var keycodeKeysyms: KeyCodeKeysyms = {
8: [0xFF08], // backspace
9: [0xFF09], // tab
12: [0xFF0B, 0xFF0B, 0xFF0B, 0xFFB5], // clear / KP 5
13: [0xFF0D], // enter
16: [0xFFE1, 0xFFE1, 0xFFE2], // shift
17: [0xFFE3, 0xFFE3, 0xFFE4], // ctrl
18: [0xFFE9, 0xFFE9, 0xFE03], // alt
19: [0xFF13], // pause/break
20: [0xFFE5], // caps lock
27: [0xFF1B], // escape
32: [0x0020], // space
33: [0xFF55, 0xFF55, 0xFF55, 0xFFB9], // page up / KP 9
34: [0xFF56, 0xFF56, 0xFF56, 0xFFB3], // page down / KP 3
35: [0xFF57, 0xFF57, 0xFF57, 0xFFB1], // end / KP 1
36: [0xFF50, 0xFF50, 0xFF50, 0xFFB7], // home / KP 7
37: [0xFF51, 0xFF51, 0xFF51, 0xFFB4], // left arrow / KP 4
38: [0xFF52, 0xFF52, 0xFF52, 0xFFB8], // up arrow / KP 8
39: [0xFF53, 0xFF53, 0xFF53, 0xFFB6], // right arrow / KP 6
40: [0xFF54, 0xFF54, 0xFF54, 0xFFB2], // down arrow / KP 2
45: [0xFF63, 0xFF63, 0xFF63, 0xFFB0], // insert / KP 0
46: [0xFFFF, 0xFFFF, 0xFFFF, 0xFFAE], // delete / KP decimal
91: [0xFFEB], // left window key (hyper_l)
92: [0xFF67], // right window key (menu key?)
93: null, // select key
96: [0xFFB0], // KP 0
97: [0xFFB1], // KP 1
98: [0xFFB2], // KP 2
99: [0xFFB3], // KP 3
100: [0xFFB4], // KP 4
101: [0xFFB5], // KP 5
102: [0xFFB6], // KP 6
103: [0xFFB7], // KP 7
104: [0xFFB8], // KP 8
105: [0xFFB9], // KP 9
106: [0xFFAA], // KP multiply
107: [0xFFAB], // KP add
109: [0xFFAD], // KP subtract
110: [0xFFAE], // KP decimal
111: [0xFFAF], // KP divide
112: [0xFFBE], // f1
113: [0xFFBF], // f2
114: [0xFFC0], // f3
115: [0xFFC1], // f4
116: [0xFFC2], // f5
117: [0xFFC3], // f6
118: [0xFFC4], // f7
119: [0xFFC5], // f8
120: [0xFFC6], // f9
121: [0xFFC7], // f10
122: [0xFFC8], // f11
123: [0xFFC9], // f12
144: [0xFF7F], // num lock
145: [0xFF14], // scroll lock
225: [0xFE03] // altgraph (iso_level3_shift)
};
var keyidentifier_keysym: KeyIdentifierKeysym = {
"Again": [0xFF66],
"AllCandidates": [0xFF3D],
"Alphanumeric": [0xFF30],
"Alt": [0xFFE9, 0xFFE9, 0xFE03],
"Attn": [0xFD0E],
"AltGraph": [0xFE03],
"ArrowDown": [0xFF54],
"ArrowLeft": [0xFF51],
"ArrowRight": [0xFF53],
"ArrowUp": [0xFF52],
"Backspace": [0xFF08],
"CapsLock": [0xFFE5],
"Cancel": [0xFF69],
"Clear": [0xFF0B],
"Convert": [0xFF21],
"Copy": [0xFD15],
"Crsel": [0xFD1C],
"CrSel": [0xFD1C],
"CodeInput": [0xFF37],
"Compose": [0xFF20],
"Control": [0xFFE3, 0xFFE3, 0xFFE4],
"ContextMenu": [0xFF67],
"DeadGrave": [0xFE50],
"DeadAcute": [0xFE51],
"DeadCircumflex": [0xFE52],
"DeadTilde": [0xFE53],
"DeadMacron": [0xFE54],
"DeadBreve": [0xFE55],
"DeadAboveDot": [0xFE56],
"DeadUmlaut": [0xFE57],
"DeadAboveRing": [0xFE58],
"DeadDoubleacute": [0xFE59],
"DeadCaron": [0xFE5A],
"DeadCedilla": [0xFE5B],
"DeadOgonek": [0xFE5C],
"DeadIota": [0xFE5D],
"DeadVoicedSound": [0xFE5E],
"DeadSemivoicedSound": [0xFE5F],
"Delete": [0xFFFF],
"Down": [0xFF54],
"End": [0xFF57],
"Enter": [0xFF0D],
"EraseEof": [0xFD06],
"Escape": [0xFF1B],
"Execute": [0xFF62],
"Exsel": [0xFD1D],
"ExSel": [0xFD1D],
"F1": [0xFFBE],
"F2": [0xFFBF],
"F3": [0xFFC0],
"F4": [0xFFC1],
"F5": [0xFFC2],
"F6": [0xFFC3],
"F7": [0xFFC4],
"F8": [0xFFC5],
"F9": [0xFFC6],
"F10": [0xFFC7],
"F11": [0xFFC8],
"F12": [0xFFC9],
"F13": [0xFFCA],
"F14": [0xFFCB],
"F15": [0xFFCC],
"F16": [0xFFCD],
"F17": [0xFFCE],
"F18": [0xFFCF],
"F19": [0xFFD0],
"F20": [0xFFD1],
"F21": [0xFFD2],
"F22": [0xFFD3],
"F23": [0xFFD4],
"F24": [0xFFD5],
"Find": [0xFF68],
"GroupFirst": [0xFE0C],
"GroupLast": [0xFE0E],
"GroupNext": [0xFE08],
"GroupPrevious": [0xFE0A],
"FullWidth": null,
"HalfWidth": null,
"HangulMode": [0xFF31],
"Hankaku": [0xFF29],
"HanjaMode": [0xFF34],
"Help": [0xFF6A],
"Hiragana": [0xFF25],
"HiraganaKatakana": [0xFF27],
"Home": [0xFF50],
"Hyper": [0xFFED, 0xFFED, 0xFFEE],
"Insert": [0xFF63],
"JapaneseHiragana": [0xFF25],
"JapaneseKatakana": [0xFF26],
"JapaneseRomaji": [0xFF24],
"JunjaMode": [0xFF38],
"KanaMode": [0xFF2D],
"KanjiMode": [0xFF21],
"Katakana": [0xFF26],
"Left": [0xFF51],
"Meta": [0xFFE7, 0xFFE7, 0xFFE8],
"ModeChange": [0xFF7E],
"NumLock": [0xFF7F],
"PageDown": [0xFF56],
"PageUp": [0xFF55],
"Pause": [0xFF13],
"Play": [0xFD16],
"PreviousCandidate": [0xFF3E],
"PrintScreen": [0xFD1D],
"Redo": [0xFF66],
"Right": [0xFF53],
"RomanCharacters": null,
"Scroll": [0xFF14],
"Select": [0xFF60],
"Separator": [0xFFAC],
"Shift": [0xFFE1, 0xFFE1, 0xFFE2],
"SingleCandidate": [0xFF3C],
"Super": [0xFFEB, 0xFFEB, 0xFFEC],
"Tab": [0xFF09],
"Up": [0xFF52],
"Undo": [0xFF65],
"Win": [0xFFEB],
"Zenkaku": [0xFF28],
"ZenkakuHankaku": [0xFF2A]
};
const OSK_keyMappings: [string, number, string, string, number][] = [
["!", 49, "Digit1", "!", 0],
["#", 51, "Digit3", "#", 0],
["$", 52, "Digit4", "$", 0],
["%", 53, "Digit5", "%", 0],
["&", 55, "Digit7", "&", 0],
["'", 222, "Quote", "'", 0],
["(", 57, "Digit9", "(", 0],
[")", 48, "Digit0", ")", 0],
["*", 56, "Digit8", "*", 0],
["+", 187, "Equal", "+", 0],
[",", 188, "Comma", ",", 0],
["-", 189, "Minus", "-", 0],
[".", 190, "Period", ".", 0],
["/", 191, "Slash", "/", 0],
["0", 48, "Digit0", "0", 0],
["1", 49, "Digit1", "1", 0],
["2", 50, "Digit2", "2", 0],
["3", 51, "Digit3", "3", 0],
["4", 52, "Digit4", "4", 0],
["5", 53, "Digit5", "5", 0],
["6", 54, "Digit6", "6", 0],
["7", 55, "Digit7", "7", 0],
["8", 56, "Digit8", "8", 0],
["9", 57, "Digit9", "9", 0],
[":", 186, "Semicolon", ":", 0],
[";", 186, "Semicolon", ";", 0],
["<", 188, "Comma", "<", 0],
["=", 187, "Equal", "=", 0],
[">", 190, "Period", ">", 0],
["?", 191, "Slash", "?", 0],
["@", 50, "Digit2", "@", 0],
["A", 65, "KeyA", "A", 0],
["B", 66, "KeyB", "B", 0],
["C", 67, "KeyC", "C", 0],
["D", 68, "KeyD", "D", 0],
["E", 69, "KeyE", "E", 0],
["F", 70, "KeyF", "F", 0],
["G", 71, "KeyG", "G", 0],
["H", 72, "KeyH", "H", 0],
["I", 73, "KeyI", "I", 0],
["J", 74, "KeyJ", "J", 0],
["K", 75, "KeyK", "K", 0],
["L", 76, "KeyL", "L", 0],
["M", 77, "KeyM", "M", 0],
["N", 78, "KeyN", "N", 0],
["O", 79, "KeyO", "O", 0],
["P", 80, "KeyP", "P", 0],
["Q", 81, "KeyQ", "Q", 0],
["R", 82, "KeyR", "R", 0],
["S", 83, "KeyS", "S", 0],
["T", 84, "KeyT", "T", 0],
["U", 85, "KeyU", "U", 0],
["V", 86, "KeyV", "V", 0],
["W", 87, "KeyW", "W", 0],
["X", 88, "KeyX", "X", 0],
["Y", 89, "KeyY", "Y", 0],
["Z", 90, "KeyZ", "Z", 0],
["[", 219, "BracketLeft", "[", 0],
["\\", 220, "Backslash", "\\", 0],
["]", 221, "BracketRight", "]", 0],
["^", 54, "Digit6", "^", 0],
["_", 189, "Minus", "_", 0],
["`", 192, "Backquote", "`", 0],
["a", 65, "KeyA", "a", 0],
["b", 66, "KeyB", "b", 0],
["c", 67, "KeyC", "c", 0],
["d", 68, "KeyD", "d", 0],
["e", 69, "KeyE", "e", 0],
["f", 70, "KeyF", "f", 0],
["g", 71, "KeyG", "g", 0],
["h", 72, "KeyH", "h", 0],
["i", 73, "KeyI", "i", 0],
["j", 74, "KeyJ", "j", 0],
["k", 75, "KeyK", "k", 0],
["l", 76, "KeyL", "l", 0],
["m", 77, "KeyM", "m", 0],
["n", 78, "KeyN", "n", 0],
["o", 79, "KeyO", "o", 0],
["p", 80, "KeyP", "p", 0],
["q", 81, "KeyQ", "q", 0],
["r", 82, "KeyR", "r", 0],
["s", 83, "KeyS", "s", 0],
["t", 84, "KeyT", "t", 0],
["u", 85, "KeyU", "u", 0],
["v", 86, "KeyV", "v", 0],
["w", 87, "KeyW", "w", 0],
["x", 88, "KeyX", "x", 0],
["y", 89, "KeyY", "y", 0],
["z", 90, "KeyZ", "z", 0],
["{", 219, "BracketLeft", "{", 0],
["{altleft}", 18, "AltLeft", "AltLeft", 1],
["{altright}", 18, "AltRight", "AltRight", 2],
["{arrowdown}", 40, "ArrowDown", "ArrowDown", 0],
["{arrowleft}", 37, "ArrowLeft", "ArrowLeft", 0],
["{arrowright}", 39, "ArrowRight", "ArrowRight", 0],
["{arrowup}", 38, "ArrowUp", "ArrowUp", 0],
["{backspace}", 8, "Backspace", "Backspace", 0],
["{capslock}", 20, "CapsLock", "CapsLock", 0],
["{controlleft}", 17, "ControlLeft", "ControlLeft", 1],
["{controlright}", 17, "ControlRight", "ControlRight", 2],
["{delete}", 46, "Delete", "Delete", 0],
["{end}", 35, "End", "End", 0],
["{enter}", 13, "Enter", "Enter", 0],
["{escape}", 27, "Escape", "Escape", 0],
["{f10}", 121, "F10", "F10", 0],
["{f11}", 122, "F11", "F11", 0],
["{f12}", 123, "F12", "F12", 0],
["{f1}", 112, "F1", "F1", 0],
["{f2}", 113, "F2", "F2", 0],
["{f3}", 114, "F3", "F3", 0],
["{f4}", 115, "F4", "F4", 0],
["{f5}", 116, "F5", "F5", 0],
["{f6}", 117, "F6", "F6", 0],
["{f7}", 118, "F7", "F7", 0],
["{f8}", 119, "F8", "F8", 0],
["{f9}", 120, "F9", "F9", 0],
["{home}", 36, "Home", "Home", 0],
["{insert}", 45, "Insert", "Insert", 0],
["{metaleft}", 91, "OSLeft", "OSLeft", 1],
["{metaright}", 92, "OSRight", "OSRight", 2],
["{numlock}", 144, "NumLock", "NumLock", 0],
["{numpad0}", 96, "Numpad0", "Numpad0", 3],
["{numpad1}", 97, "Numpad1", "Numpad1", 3],
["{numpad2}", 98, "Numpad2", "Numpad2", 3],
["{numpad3}", 99, "Numpad3", "Numpad3", 3],
["{numpad4}", 100, "Numpad4", "Numpad4", 3],
["{numpad5}", 101, "Numpad5", "Numpad5", 3],
["{numpad6}", 102, "Numpad6", "Numpad6", 3],
["{numpad7}", 103, "Numpad7", "Numpad7", 3],
["{numpad8}", 104, "Numpad8", "Numpad8", 3],
["{numpad9}", 105, "Numpad9", "Numpad9", 3],
["{numpadadd}", 107, "NumpadAdd", "NumpadAdd", 3],
["{numpaddecimal}", 110, "NumpadDecimal", "NumpadDecimal", 3],
["{numpaddivide}", 111, "NumpadDivide", "NumpadDivide", 3],
["{numpadenter}", 13, "NumpadEnter", "NumpadEnter", 3],
["{numpadmultiply}", 106, "NumpadMultiply", "NumpadMultiply", 3],
["{numpadsubtract}", 109, "NumpadSubtract", "NumpadSubtract", 3],
["{pagedown}", 34, "PageDown", "PageDown", 0],
["{pageup}", 33, "PageUp", "PageUp", 0],
["{pause}", 19, "Pause", "Pause", 0],
["{prtscr}", 44, "PrintScreen", "PrintScreen", 0],
["{scrolllock}", 145, "ScrollLock", "ScrollLock", 0],
["{shiftleft}", 16, "ShiftLeft", "ShiftLeft", 1],
["{shiftright}", 16, "ShiftRight", "ShiftRight", 2],
["{space}", 32, "Space", "Space", 0],
["{tab}", 9, "Tab", "Tab", 0],
["|", 220, "Backslash", "|", 0],
["}", 221, "BracketRight", "}", 0],
["~", 192, "Backquote", "~", 0],
['"', 222, "Quote", '"', 0]
];