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Color picker for Sketchful
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// ==UserScript==
// @name Color Picker
// @namespace https://greasyfork.org/users/281093
// @match https://sketchful.io/*
// @grant none
// @version 0.5.1
// @author Bell
// @description Color picker for Sketchful
// @run-at document-end
// jshint esversion: 6
// ==/UserScript==
let defaultPalettes = [
[
"#ffffff","#d3d1d2","#f70f0f","#ff7200","#fce700","#02cb00","#01fe94","#05b0ff","#221ecd","#a300bd","#cc7fad","#fdad88","#9e5425",
"#514f54","#a9a7a8","#ae0b00","#c84706","#ec9e06","#007612","#049d6f","#00579d","#0f0b96","#6e0083","#a65673","#e38a5e","#5e320d",
"#000000","#827c80","#57060c","#8b2500","#9e6600","#003f00","#00766a","#003b75","#0e0151","#3c0350","#73314d","#d1754e","#421e06"
],
[
"#3a3a3c","#8e8e93","#f8f9fa","#ffadad","#ffd6a5","#fdffb6","#caffbf","#9bf6ff","#a0c4ff","#bdb2ff","#ffc6ff","#fdad88","#9e5425",
"#2c2c2e","#636366","#e0e0e0","#ff7070","#f3a220","#f9e079","#049d6f","#92ddea","#6dafe0","#ab87ff","#ff87ab","#e38a5e","#5e320d",
"#1c1c1e","#48484a","#c2c2c2","#f54d4d","#dc8700","#f0c808","#00766a","#219bc3","#548bbc","#715aff","#ff5d8f","#d1754e","#421e06"
],
[
"#081c15","#1b4332","#2d6a4f","#40916c","#52b788","#74c69d","#95d5b2","#b7e4c7","#d8f3dc","#000000","#faf9f9","#ffd6ba","#fec89a",
"#774936","#8a5a44","#9d6b53","#b07d62","#c38e70","#cd9777","#d69f7e","#deab90","#e6b8a2","#edc4b3","#ffb5a7","#fcd5ce","#f8edeb",
"#cb997e","#eddcd2","#fff1e6","#f0efeb","#ddbea9","#a5a58d","#b7b7a4","#6d6875","#b5838d","#e5989b","#ffb4a2","#ffcdb2","#f9dcc4"
],
[
"#10002b","#240046","#3c096c","#5a189a","#7b2cbf","#9d4edd","#c77dff","#e0aaff","#efcefa","#d4b2d8","#a88fac","#826c7f","#5d4e60",
"#7c6f93","#886f93","#a967ad","#ad6789","#db81ad","#ff6c91","#ff736c","#ff9e46","#faa275","#ff8c61","#ce6a85","#985277","#5c374c",
"#721b65","#b80d57","#f8615a","#ffd868","#bb596b","#f96d80","#ff9a76","#ffc4a3","#00e0ff","#74f9ff","#a6fff2","#e8ffe8","#ffffff"
],
[
"#007f5f","#2b9348","#55a630","#80b918","#aacc00","#bfd200","#d4d700","#dddf00","#eeef20","#ffff3f","#03045e","#0077b6","#00b4d8",
"#ff4800","#ff5400","#ff6000","#ff6d00","#ff7900","#ff8500","#ff9100","#ff9e00","#ffaa00","#ffb600","#90e0ef","#caf0f8","#000000",
"#143642","#263c41","#38413f","#4a473e","#5c4d3c","#6f523b","#815839","#935e38","#a56336","#b76935","#000000","#ffffff","#ffffff"
]
];
let palettes = JSON.parse(localStorage.getItem('palettes')) || defaultPalettes;
let paletteIndex = parseInt(localStorage.getItem("paletteIndex")) || 0;
let lockedPalettes = JSON.parse(localStorage.getItem('lockedPalettes')) || [0];
let activeColor = {
node: null,
index: null
};
const canvas = document.querySelector("#canvas");
const ctx = canvas.getContext("2d");
const gameTools = document.querySelector("#gameTools");
const chatBox = document.querySelector("#gameChat");
const colorButtons = document.querySelectorAll(".gameToolsColor");
const colorsDiv = document.querySelector("#gameToolsColors");
const colorButton = document.querySelector("#gameToolsColors > div:nth-child(1) > div:nth-child(1)");
const colorPickerWrapper = document.createElement("div");
const colorInput = document.createElement("input");
const colorPicker = document.createElement("input");
const inputStyle = `margin: 5px 0; height: 20px; width: 35%; text-align: center; border: none;font-weight: 800; border-radius: 5px; background-color: #CBCBCB;`;
const wrapperStyle = `position: absolute; margin: 5px 35%; height: 20px; width: 37px; border-radius: 5px;`;
(function init() {
addPicker();
updatePageStyle();
addObservers();
addListeners();
changePalette(paletteIndex);
})();
function addPicker() {
colorPicker.type = "color";
colorPicker.setAttribute("style", "opacity: 0; width: 37px; cursor: pointer;");
colorPicker.oninput = updatePicker;
colorPickerWrapper.setAttribute("style", wrapperStyle);
colorPickerWrapper.style.backgroundColor = colorPicker.value;
colorPickerWrapper.appendChild(colorPicker);
gameTools.appendChild(colorPickerWrapper);
colorInput.oninput = updateInput;
colorInput.addEventListener("click", selectInputText, false);
colorInput.setAttribute("style", inputStyle);
colorInput.setAttribute("spellcheck", "false");
colorInput.value = colorPicker.value;
gameTools.appendChild(colorInput);
addButtons();
}
function addObservers() {
const heightObserver = new MutationObserver(adjustChatSize);
const config = {
attributes: true,
childList: false,
subtree: false
};
heightObserver.observe(gameTools, config);
heightObserver.observe(chatBox, config);
}
function addListeners() {
canvas.addEventListener('pointerdown', pickCanvasColor, false);
colorsDiv.addEventListener("click", editColor, false);
let saveBtn = document.querySelector("#savePalette");
saveBtn.addEventListener("dragenter", highlight, false);
saveBtn.addEventListener("dragleave", unhighlight, false);
saveBtn.addEventListener("drop", handleDrop, false);
saveBtn.addEventListener("dragover", e => { e.preventDefault(); }, false);
}
function updatePageStyle() {
document.querySelector("#gameToolsSlider").style.top = "77px";
gameTools.style.height = "200px";
}
function toggleLock() {
let lockBtn = document.querySelector("#lockButton");
if (lockBtn.getAttribute("state") === "unlocked") {
lockPalette(lockBtn);
} else {
unlockPalette(lockBtn);
}
updateLock();
}
function lockPalette(lockBtn) {
lockedPalettes.push(paletteIndex);
localStorage.setItem("lockedPalettes", JSON.stringify(lockedPalettes));
}
function unlockPalette(lockBtn) {
let index = lockedPalettes.indexOf(paletteIndex);
if (index < 0) return;
lockedPalettes.splice(index, 1);
localStorage.setItem("lockedPalettes", JSON.stringify(lockedPalettes));
}
function updateLock() {
let lockBtn = document.querySelector("#lockButton");
if (isPaletteLocked()) {
lockBtn.classList.remove("fa-unlock-alt");
lockBtn.classList.add("fa-lock");
lockBtn.setAttribute("state", "locked");
} else {
lockBtn.classList.add("fa-unlock-alt");
lockBtn.classList.remove("fa-lock");
lockBtn.setAttribute("state", "unlocked");
}
resetActiveColor();
}
function addButtons() {
let prevPaletteBtn = document.createElement("button");
let saveColorBtn = document.createElement("button");
let nextPaletteBtn = document.createElement("button");
let lockBtn = document.createElement("button");
addButton(prevPaletteBtn, "arrow-left", "5px 5px 5px 45px;");
addButton(saveColorBtn, "save", "5px 5px 5px 75px;", "savePalette");
addButton(nextPaletteBtn, "arrow-right", "5px 5px 5px 105px;");
addButton(lockBtn, "unlock-alt", "5px 5px 5px 135px;", "lockButton");
lockBtn.setAttribute("state", "unlocked");
prevPaletteBtn.addEventListener("click", prevPalette, false);
saveColorBtn.addEventListener("click", saveColor, false);
nextPaletteBtn.addEventListener("click", nextPalette, false);
lockBtn.addEventListener("click", toggleLock, false);
}
function nextPalette() {
paletteIndex < (palettes.length - 1) && paletteIndex++;
localStorage.setItem("paletteIndex", paletteIndex);
changePalette();
}
function prevPalette() {
paletteIndex > 0 && paletteIndex--;
localStorage.setItem("paletteIndex", paletteIndex);
changePalette();
}
function saveColor(e) {
if (e.shiftKey) {
downloadPalettes();
return;
}
let currentPalette = palettes[paletteIndex];
if (activeColor.index) {
currentPalette[activeColor.index] = colorPicker.value;
} else {
while (currentPalette.length >= 39 || isPaletteLocked()) {
paletteIndex++;
if (paletteIndex === palettes.length) {
palettes.push([]);
}
currentPalette = palettes[paletteIndex];
}
currentPalette.push(colorPicker.value);
}
changePalette();
savePalettes();
}
function savePalettes() {
localStorage.setItem("palettes", JSON.stringify(palettes));
}
function downloadPalettes() {
let formattedPaletteData = JSON.stringify(palettes).replace(/\]\,/g, "],\n\n");
download("palettes.txt", formattedPaletteData);
}
function download(filename, text) {
let pom = document.createElement('a');
pom.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
pom.setAttribute('download', filename);
if (document.createEvent) {
let event = document.createEvent('MouseEvents');
event.initEvent('click', true, true);
pom.dispatchEvent(event);
}
else {
pom.click();
}
}
function isPaletteLocked() {
return lockedPalettes.includes(paletteIndex);
}
function editColor(event) {
if (isPaletteLocked() || !event.target.classList.contains("gameToolsColor")) return;
event.preventDefault();
let color = {
node: event.target,
index: Array.prototype.indexOf.call(colorButtons, event.target)
};
if (event.altKey) {
if (color.index >= 0 && paletteIndex >= 0) {
let palette = palettes[paletteIndex];
palette.splice(color.index, 1);
if (isPaletteEmpty(palette)) {
palettes.splice(paletteIndex, 1);
paletteIndex--;
}
changePalette();
savePalettes();
}
} else if (event.shiftKey) {
setActiveColor(color);
}
}
function changePalette() {
if (paletteIndex < 0 || paletteIndex >= palettes.length) {
paletteIndex = 0;
localStorage.setItem("paletteIndex", paletteIndex);
}
colorButtons.forEach((button, idx) => {
let color = palettes[paletteIndex][idx] || "#fff";
button.style.backgroundColor = color;
});
resetActiveColor();
updateLock();
}
function isPaletteEmpty(palette) {
if (!palette) return true;
let empty = true;
for (let color of palette) {
if (color) {
empty = false;
break;
}
}
return empty;
}
function setActiveColor(color) {
resetActiveColor();
activeColor = color;
console.log(activeColor);
activeColor.node.style.border = "solid 2px red";
}
function resetActiveColor() {
if (activeColor.node) {
activeColor.node.style.border = "";
activeColor = {
node: null,
index: null
};
}
}
function addButton(button, icon, pos, id = "") {
let buttonStyle = `margin: ${pos}; position: absolute; height: 20px; border: none; background-color: #CBCBCB; border-radius: 5px;`;
button.setAttribute("style", buttonStyle);
button.setAttribute("class", `fas fa-${icon}`);
button.id = id;
gameTools.appendChild(button);
}
function updatePicker(event) {
let color = event.target.value;
colorPickerWrapper.style.backgroundColor = color;
colorInput.value = color;
setColor(color);
}
function updateInput(event) {
let color = event.target.value;
colorPickerWrapper.style.backgroundColor = color;
colorPicker.value = color;
setColor(color);
}
function setColor(color) {
let prevColor = colorButton.style.backgroundColor;
colorButton.style.backgroundColor = color;
colorButton.dispatchEvent(new Event("pointerdown"));
colorButton.style.backgroundColor = prevColor;
}
function selectInputText() {
colorInput.select();
}
function pickCanvasColor(event) {
if (!event.altKey) return;
event.stopImmediatePropagation();
let pos = getPos(event);
let [r, g, b, a] = ctx.getImageData(pos.x, pos.y, 1, 1).data;
let color = `rgb(${r}, ${g}, ${b})`;
setColor(color);
}
function getPos(event) {
let canvasRect = canvas.getBoundingClientRect();
let canvasScale = canvas.width / canvasRect.width;
return {
x: (event.clientX - canvasRect.left) * canvasScale,
y: (event.clientY - canvasRect.top) * canvasScale
};
}
function handleDrop(e) {
e.preventDefault();
colorsDiv.style.filter = "";
let file = e.dataTransfer.files[0];
if (file) {
let reader = new FileReader();
reader.readAsText(file);
reader.onload = (e) => {
const csvRegex = /CSV \*\/\s*(\S+)/;
let match = e.target.result.match(csvRegex);
let palette = match ? match[1].split(",").map(color => `#${color}`) : JSON.parse(e.target.result);
loadPalette(palette);
resetPaletteState();
};
}
}
function addPalette(palette) {
palettes.push(palette);
paletteIndex = palettes.length - 1;
}
function loadPalette(palette) {
if (!Array.isArray(palette[0])) {
addPalette(palette);
return;
}
palettes = palette;
paletteIndex = 0;
lockedPalettes = [];
}
function resetPaletteState() {
resetActiveColor();
updateLock();
changePalette();
savePalettes();
}
function highlight(e) {
e.preventDefault();
colorsDiv.style.filter = "brightness(0.8)";
}
function unhighlight(e) {
e.preventDefault();
colorsDiv.style.filter = "";
}
function isDrawing() {
return document.querySelector("#gameTools").style.display !== "none";
}
function adjustChatSize() {
chatBox.style.height = isDrawing() ? "calc(100% - 200px)" : "calc(100% - 180px)";
}