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0.36.1

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autocomplete.js

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wrap(function setup() {

const setting = settings.register({

name: 'Visual Autocomplete',

key: 'underscript.autocomplete',

default: true,

page: 'Chat',

});

let current = false;

const lists = {};

style.add(

// '.chat-footer { position: relative; }', // this bugs the chat

'.autobox { position: absolute; border: 1px solid #d4d4d4; border-bottom: none; border-top: none; bottom: 100%; left: 0; right: 0; }',

'.autobox div { padding: 10px; cursor: pointer; background-color: rgba(0,0,0,0.9); border-top: 1px solid #d4d4d4; border-bottom: 1px solid #d4d4d4; }',

'.autobox div:hover { background-color: #666; }',

'div.autobox-active { background-color: #333; color: #fff }',

);

function autocomplete(input, room) {

const list = lists[room];

let el;

function listener(event) {

let el2;

// If current word starts with @, show autocomplete

const { text, replace } = getWord(this);

closeList();

if (text === undefined) return;

debug(`"${text}"`);

el = document.createElement('div');

el.setAttribute('id', 'autobox');

el.setAttribute('class', 'autobox');

this.parentNode.appendChild(el);

let x = 0;

const localList = [...list];

eventManager.emit('@autocomplete', {

list: localList,

});

const listLength = localList.length;

for (let i = 1; i <= listLength && x < 5; i++) { // Limit to 5 most recent entries

/* check if the item starts with the same letters as the text field value: */

const item = localList[listLength - i];

if (item.substr(0, text.length).toUpperCase() !== text.toUpperCase()) continue;

x += 1; // If we display this name, increment limit

el2 = document.createElement('div');

el2.innerHTML = `<strong>${item.substr(0, text.length)}</strong>${item.substr(text.length)}`;

/* execute a function when someone clicks on the item value (DIV element) */

el2.addEventListener('click', (e) => {

replace(item);

closeList();

});

el.appendChild(el2);

}

if (x === 0) return;

current = 0;

addActive(el.getElementsByTagName('div'));

}

input.addEventListener('input', listener);

input.addEventListener('focus', listener);

// input.addEventListener('blur', closeList); // TODO: Close autocomplete when not chatting

input.addEventListener('keydown', (e) => {

if (e.which === 39) return; // right (move into @)

if (current === false) return;

const x = el.getElementsByTagName('div');

if (!x.length) return;

let active = true;

switch (e.which) {

case 40: // down

current += 1;

break;

case 38: // up

current -= 1;

break;

case 13: // enter

case 9: // tab

x[current].click();

active = false;

break;

case 37: // left

// if moves before @

return; // TODO

case 27: // escape

closeList(); // fallthrough

default: return;

}

if (active) addActive(x);

e.preventDefault();

});

function addActive(x) {

if (!x) return;

removeActive(x);

if (current >= x.length) current = 0;

if (current < 0) current = (x.length - 1);

x[current].classList.add('autobox-active');

}

function removeActive(x) {

for (let i = 0; i < x.length; i++) {

x[i].classList.remove('autobox-active');

}

}

function closeList() {

current = false;

if (!el) return;

el.parentNode.removeChild(el);

el = undefined;

}

}

// FALL DOWN LOGIC: very important to not ruin

const boundaries = ['', ' '];

function getWord(input) {

const text = input.value;

let start = -1;

let end = 0;

if (text.includes('@')) {

let x = text.indexOf(' ');

if (x === -1) { // I'm not really sure why I'm special casing for spaces

if (text.startsWith('@')) {

start = 1;

end = text.length;

}

}

if (start === -1) { // TODO - Find the @ and any text following it

const cursor = input.selectionStart;

if (boundaries.includes(text.substring(cursor, cursor + 1))) {

let str = text.substring(0, cursor);

x = str.lastIndexOf('@');

if (x > -1) {

if (x === 0 || boundaries.includes(str[x - 1])) {

str = str.substr(x + 1);

if (!str.length || str[0] !== ' ' && str.indexOf(' ') === str.lastIndexOf(' ')) { // if immediate space, if more than 1 space, ignore it

start = x + 1;

end = cursor;

}

}

}

}

}

}

if (start === -1) return {};

function replace(str) {

input.value = `${text.substring(0, start)}${str} ${text.substring(end)}`;

input.selectionStart = start + str.length + 1;

input.focus();

}

return {

replace,

text: text.substring(start, end),

};

}

function add(name, list) {

if (name === global('selfUsername')) return;

const slot = list.indexOf(name);

if (slot > -1) list.splice(slot, 1);

list.push(name);

}

eventManager.on('Chat:getHistory', ({ room, history }) => {

if (lists[room] === undefined) {

lists[room] = [];

}

const list = lists[room];

JSON.parse(history).forEach(({ user }) => add(fn.user.name(user), list));

autocomplete($(`#${room} input.chat-text`)[0], room);

});

eventManager.on('Chat:getMessage', ({ room, chatMessage }) => {

add(fn.user.name(JSON.parse(chatMessage).user), lists[room]);

});

eventManager.on(':loaded', () => {

globalSet('autoComplete', (...args) => {

if (setting.value()) return;

this.super(...args);

});

});

});