heonian-ime/ime.js
2022-05-27 20:17:35 +02:00

475 lines
16 KiB
JavaScript

// let h;
// window.onload = () => {
// document.querySelectorAll(".ime").forEach(input => {
// h = new HeonianIME(input);
// });
// }
class HeonianIME {
constructor(what) {
this.input = [];
this.currentWord = [];
this.selected = -1;
this.inputState = 0; //STARTING, COMPOSTING, TRAILING, Fucking Nothing, ...cleanup
this.stateState = 0; //depends on the state
this.inputFull = [];
this.inputCurrent = "";
this.ourHtml;
this.oldText = [];
this.hVowels = { //standalone, composing, trailing
"a": ["0", "5", "A"],
"e": ["1", "6", "B"],
"i": ["2", "7", "C"],
"o": ["3", "8", "D"],
"u": ["4", "9", "E"]
};
this.hConsonants = { //0 = standalone, 1 = composing, 2-6 = vowels
"g": "01",
"s": "02",
"r": "03",
"n": "04",
"c": "05",
"m": "06",
"j": "07",
"y": "07",
"f": "08",
"t": "09",
"k": "0A",
"w": "0B",
"l": "0C",
"p": "0D",
"b": "0E",
"d": "0F",
"h": "10",
};
this.hVowelsK = Object.keys(this.hVowels)
this.hConsonantsK = Object.keys(this.hConsonants);
this.hConsonantsR = this.inverse(this.hConsonants);
this.ourHtml = what;
this.oldText = [what.value.slice(0, what.selectionStart), what.value.slice(what.selectionStart)];
what.addEventListener("keydown", (key) => {
this.imeDown(key, what);
});
what.addEventListener("mousedown", (e) => {
this.mouse(e, what);
});
}
mouse(e, what) {
e.preventDefault();
what.focus();
this.imeUpdate(what);
}
imeDetach() {
//how do we detach this without . uh,
let renderText = "";
this.input.forEach((w) => {
renderText += w.join("");
})
if (this.selected == -1) {
this.ourHtml.setSelectionRange(this.oldText[0].length+renderText.length, this.oldText[0].length+renderText.length);
} else {
if (this.input.join("") != "") {
let from = 0;
for (let x = 0; x < this.selected; x++) {
from += this.input[x].join("").length;
}
this.ourHtml.setSelectionRange(this.oldText[0].length+from, this.oldText[0].length+from);
}
}
this.imeDown = ()=>{};
this.mouse = ()=>{};
//close enough?
}
imePush(space = false) {
//basically equavlient to pressing enter.
if (this.selected == -1) {
if (this.currentWord.join() != "") { //blame js :)
this.input.push(this.currentWord);
this.currentWord = [];
}
if (space == true) {
this.currentWord = [" "];
this.input.push(this.currentWord);
this.currentWord = [];
}
this.imeReset();
} else {
if (this.selected + 1 >= this.input.length) {
this.selected = -1;
} else {
this.selected += 1;
}
if (space == true) {
this.input.splice(this.selected, 0, [" "]);
}
this.imeReset(true);
}
}
imeDown(keyEvent, inputField) {
keyEvent.preventDefault();
switch (keyEvent.keyCode) {
case 8:
if (this.selected == -1) {
if (this.currentWord.join("") == "") {
this.currentWord = this.input.pop() || [];
} else {
this.imeRestore(this.currentWord);
// this.currentWord.pop();
}
} else {
this.imeRestore(this.input[this.selected]);
// this.input[this.selected].pop();
if (this.input[this.selected].join("") == "") {
this.input.splice(this.selected, 1);
this.imeMove("left");
}
}
break;
case 13:
this.imePush()
break;
case 32:
this.imePush(true);
break;
case 37:
this.imeMove("left");
break;
case 39:
this.imeMove("right");
break;
case 40:
this.imeMove("start");
break;
case 38:
this.imeMove("end");
break;
case 27:
this.imeDetach();
return;
default:
this.imeInput(keyEvent.key);
if (this.selected == -1) {
this.currentWord = this.inputFull;
} else {
this.input[this.selected] = this.inputFull;
}
break;
}
this.imeUpdate(inputField);
}
imeUpdate(inputField) {
let renderText = "";
this.input.forEach((w) => {
renderText += w.join("");
})
inputField.value = this.oldText[0] + renderText + this.currentWord.join("") + this.oldText[1];
if (this.selected == -1) {
inputField.setSelectionRange(this.oldText[0].length+renderText.length, this.oldText[0].length+renderText.length + this.currentWord.join("").length);
} else {
if (this.input.join("") != "") {
let from = 0;
for (let x = 0; x < this.selected; x++) {
from += this.input[x].join("").length;
}
let to = from + this.input[this.selected].join("").length;
inputField.setSelectionRange(this.oldText[0].length+from, this.oldText[0].length+to);
}
}
}
clamp(min, max, value) {
return Math.max(min, Math.min(max, value));
}
imeMove(direction) {
let d = 1;
if (this.currentWord.join("") != "") {
this.input.push(this.currentWord);
this.currentWord = [];
d = 2;
}
switch (direction) {
case "start":
this.selected = 0;
break;
case "end":
this.selected = -1;
break;
case "left":
if (this.selected == -1) this.selected = this.input.length;
this.selected -= 1 * d;
if (this.selected != -1) {
this.selected = this.clamp(0, this.input.length, this.selected);
//is there even a point in clamping it here,,,,
}
break;
case "right":
this.selected += 1 * d;
this.selected = this.clamp(0, this.input.length, this.selected);
//tbh same here, like.
//oh well ig ???/
if (this.selected == this.input.length) {
this.selected = -1;
}
break;
}
this.imeReset(true);
}
getUnicodeVowel(vowel, sot) {
if (sot == "standalone") sot = 0;
if (sot == "composing") sot = 1;
if (sot == "trailing") sot = 2;
return String.fromCharCode(parseInt("E00" + this.hVowels[vowel][sot], 16));
}
getUnicodeConsonant(consonant, scv) {
if (scv == "standalone") { scv = 0; }
else if (scv == "trailing") { scv = 1; }
else {
scv = Number(this.hVowels[scv][0]) + 2
}
return String.fromCharCode(parseInt("E" + this.hConsonants[consonant] + "" + scv, 16));
}
inverse(obj) {
var retobj = {};
for (var key in obj) {
retobj[obj[key]] = key;
}
return retobj;
}
imeReset(soft = false) {
this.stateState = 0;
this.inputState = 0;
this.inputFull = [];
this.inputCurrent = "";
if (!soft) {
if (this.selected == -1) {
this.currentWord = [];
} else {
this.input[this.selected] = [];
}
}
}
imeInfo(decHex) {
try {
let hex = decHex.codePointAt(0).toString(16).split("");
hex[1] = hex[1].toString(16);//parseInt(hex[1], 16);
hex[2] = hex[2].toString(16);//parseInt(hex[2], 16);
hex[3] = hex[3].toString(16);//parseInt(hex[3], 16);
let ka = (hex[1] == 0 && hex[2] == 0) ? "a" : "k";
if (ka == "k") {
if (hex[3] == 1) {
//trailing
return ([ka, "trailing"])
} else if (hex[3] == 0) {
//standalone
//full reset / no restore necessary
return ([ka, "standalone"])
} else {
//composing
return ([ka, "composing"])
}
} else {
if (hex[3] <= 8) {
//standalone
return ([ka, "standalone"])
} else {
//trailing
return ([ka, "trailing"])
}
}
} catch {
return "";
}
}
imeChange(inState, stState, pop, array) {
this.inputState = inState;
this.stateState = stState;
if (pop) {
array.pop();
}
this.inputFull = array;
}
// @remi@snug.moe:
// we made a backspace key that works!!!!!!!
// @meduelelateta@sweet.succubi.services:
// ari fell asleep
imeRestore(array) {
if (array.join("") == " ") {
this.imeChange(0,0,true,array);
return;
}
let hex = array[array.length - 1].codePointAt(0).toString(16).split("");
hex[1] = hex[1].toString(16);//parseInt(hex[1], 16);
hex[2] = hex[2].toString(16);//parseInt(hex[2], 16);
hex[3] = hex[3].toString(16);//parseInt(hex[3], 16);
let previous = this.imeInfo(array[array.length - 2])[1];
let ka = (hex[1] == 0 && hex[2] == 0) ? "a" : "k";
if (ka == "k") {
if (hex[3] == 1) {
//trailing
if (previous == "trailing") {
//trailing twice
// console.log("2.1");
this.imeChange(2, 1, true, array);
} else {
//trailing once
// console.log("2.0");
this.imeChange(2, 0, true, array);
}
} else if (hex[3] == 0) {
if (array.length != 1) {
//0.1, i think?
// console.log("0.1");
this.imeChange(0, 1, true, array);
} else {
//standalone
// console.log("full reset");
this.imeReset();
}
} else {
//composing
if (previous == "standalone") {
//0.1??
//recreate?? last digit???
let c = this.hConsonantsR[[hex[1], hex[2]].join("").toUpperCase()];
array.pop();
array.push(this.getUnicodeConsonant(c, "standalone"));
this.inputCurrent = c;
// console.log("0.1");
this.imeChange(0, 1, false, array);
} else {
//0.2???? fuck it lets try and find out ig
//recreate?? last digit???
let c = this.hConsonantsR[[hex[1], hex[2]].join("").toUpperCase()];
array.pop();
array.push(this.getUnicodeConsonant(c, "standalone"));
this.inputCurrent = c;
// console.log("0.2");
this.imeChange(0, 2, false, array);
}
}
} else {
if (hex[3] <= 8) {
//standalone
// console.log("full reset");
this.imeReset();
} else {
//trailing
if (previous == "trailing") {
//trailing twice
// console.log("2.1");
this.imeChange(2, 1, true, array);
} else {
//trailing once
// console.log("2.0");
this.imeChange(2, 0, true, array);
}
}
}
}
imeInput(key) {
key = key.toLowerCase();
if (!this.hConsonantsK.includes(key) && !this.hVowelsK.includes(key)) return;
switch (this.inputState) {
case 0: //starting
if (this.stateState == 0) {
if (this.hVowelsK.includes(key)) {
this.inputFull.push(this.getUnicodeVowel(key, "standalone"));
this.inputState = 2;
} else {
this.inputFull.push(this.getUnicodeConsonant(key, "standalone"));
this.stateState = 1;
this.inputCurrent = key;
}
break;
} else if (this.stateState == 1) {
if (this.hVowelsK.includes(key)) {
this.inputState = 1;
this.stateState = 0;
} else {
this.inputFull.push(this.getUnicodeConsonant(key, "trailing"));
this.inputCurrent = key;
this.stateState = 2;
break;
}
} else if (this.stateState == 2) {
if (this.hVowelsK.includes(key)) {
this.inputState = 1;
this.stateState = 0;
} else break;
}
case 1: //composing
if (this.hVowelsK.includes(key)) {
this.inputState = 2;
this.inputFull.pop();
this.inputFull.push(this.getUnicodeConsonant(this.inputCurrent, key));
this.inputCurrent = "";
}
break;
case 2: //trailing
if (this.hVowelsK.includes(key)) {
if (this.stateState == 1 && this.inputCurrent != "") {
this.inputFull.pop();
let ic = this.inputCurrent;
let k = key;
this.imePush();
this.inputFull.pop();
this.inputFull.push(this.getUnicodeConsonant(ic, k));
this.inputCurrent = "";
this.inputState = 2;
} else {
this.inputFull.push(this.getUnicodeVowel(key, "trailing"));
this.inputCurrent = "";
this.stateState += 1;
}
} else {
this.inputFull.push(this.getUnicodeConsonant(key, "trailing"));
this.inputCurrent = key;
this.stateState += 1;
}
if (this.stateState == 2) {
this.stateState = 0;
this.inputState = 3;
};
break;
case 3: //go to next word uwu
if (this.hVowelsK.includes(key) && this.inputCurrent != "") {
this.inputFull.pop();
let ic = this.inputCurrent;
let k = key;
this.imePush();
this.inputFull.pop();
this.inputFull.push(this.getUnicodeConsonant(ic, k));
this.inputCurrent = "";
this.inputState = 2;
} else {
this.imePush();
this.imeInput(key);
}
break;
}
}
}