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script.js
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script.js
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let body = document.querySelector('body');
let colorPickers = document.querySelectorAll('.color-picker');
let colorPicker1 = document.querySelector('.color-picker__container1').firstElementChild;
let colorPicker2 = document.querySelector('.color-picker__container2').firstElementChild;
let anglePicker = document.querySelector('.js-angle');
let gradientCode = document.querySelectorAll('.js-gradient-code');
let rgbCode = document.querySelectorAll('.js-rgb-code');
let backgroundCopy = document.querySelector('.js-background-copy');
let buttonCopy = document.querySelector('.js-copy');
let codeEditorTabs = document.querySelectorAll('.code-editor__tab');
let rgbCodeContainer = document.querySelector('.rgb-code');
let gradientCodeContainer = document.querySelector('.gradient-code');
let randomButton = document.querySelector('.svg-random');
let anglePickerCircle = document.querySelector('.angle-picker__circle');
let anglePickerRect = document.querySelector('.angle-picker__rectangle');
// Add degree here
const addStringToDegree = () => {
return anglePicker.value + "deg";
};
const getGradientCode = () => {
let angle = addStringToDegree();
return "linear-gradient(" + angle + ", " + colorPicker1.value + ", " + colorPicker2.value + ")";
};
const hexToRgb = hex => {
let shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
hex = hex.replace(shorthandRegex, function(m, r, g, b) {
return r + r + g + g + b + b;
});
let result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
return result ? {
r: parseInt(result[1], 16),
g: parseInt(result[2], 16),
b: parseInt(result[3], 16)
} : null;
};
const getRgbCode = () => {
let rgbColor1 = hexToRgb(colorPicker1.value);
let rgbColor2 = hexToRgb(colorPicker2.value);
return ([
"rgb(" + rgbColor1.r + ", " + rgbColor1.g + ", " + rgbColor1.b + ");\n",
"rgb(" + rgbColor2.r + ", " + rgbColor2.g + ", " + rgbColor2.b + ");\n"
]);
};
const changeColorPickerBackground = () => {
colorPickers.forEach(picker => picker.parentElement.style.backgroundColor = picker.value);
};
const changeBodyBackground = () => {
body.style.background = getGradientCode();
};
const changeGradientCode = () => {
gradientCode.forEach(code => code.innerHTML = getGradientCode() + ';');
backgroundCopy.style.background = getGradientCode();
};
const changeRgbCode = () => {
let newRgbArray = getRgbCode();
for(let i = 0; i < rgbCode.length; i++){
rgbCode[i].innerHTML = newRgbArray[i];
}
};
const changeColor = () => {
changeColorPickerBackground();
changeBodyBackground();
changeGradientCode();
changeRgbCode();
};
colorPickers.forEach(colorPicker => colorPicker.addEventListener('input', changeColor));
const changePickerColor = (color1, color2) => {
colorPicker1.value = color1;
colorPicker2.value = color2;
};
const changeWithRandomAngle = angle => {
anglePicker.value = angle;
};
const createRandomGradient = () => {
let hexValues = ["0","1","2","3","4","5","6","7","8","9","a","b","c","d","e"];
let populate = (a) => {
for ( let i = 0; i < 6; i++ ) {
let x = Math.round( Math.random() * 14 );
let y = hexValues[x];
a += y;
}
return a;
};
let newColor1 = populate('#');
let newColor2 = populate('#');
let angle = Math.round( Math.random() * 360 );
let gradient = "linear-gradient(" + angle + "deg, " + newColor1 + ", " + newColor2 + ")";
return {newColor1, newColor2, gradient, angle};
};
const updateWithRandomGradient = () => {
let randomGradient = createRandomGradient();
body.style.background = randomGradient.gradient;
changePickerColor(randomGradient.newColor1, randomGradient.newColor2);
changeColorPickerBackground();
changeWithRandomAngle(randomGradient.angle);
let rotation = checkRotationDirection(randomGradient.angle);
rotateCursor(rotation);
changeGradientCode();
changeRgbCode();
};
randomButton.addEventListener('click', updateWithRandomGradient);
const checkNumbersOnly = string => {
let numbers = /^[0-9]*$/;
return !string.match(numbers);
};
const newTypedAngle = event => {
if(checkNumbersOnly(event.target.value)){
anglePicker.value = NaN;
} else {
anglePicker.value = event.target.value;
let rotation = checkRotationDirection(event.target.value);
rotateCursor(rotation);
changeBodyBackground();
changeGradientCode();
}
};
anglePicker.addEventListener('input', e => newTypedAngle(e));
const checkCoordIsZero = (x, y) => {
// Check if angle is zero / 90° / 180° or 270°
if(x === 0 && (y === 0 || Math.sign(y) === 1)){
return 0;
} else if(y === 0 && Math.sign(x) === 1){
return 90;
} else if(x === 0 && Math.sign(y) === -1){
return 180;
} else if(y === 0 && Math.sign(x) === -1){
return 270;
} else return false
};
// Get x and y coordinates of the click
const getCursorPosition = e => {
// Get position related to viewport
let circle = e.target.getBoundingClientRect();
// Adding scroll top and left
let scrollLeft = window.pageXOffset;
let scrollTop = window.pageYOffset;
// Get x & y coordinates of click
let circleXaxis = e.pageX;
let circleYaxis = e.pageY;
let x = circleXaxis - (circle.left + scrollLeft + circle.width / 2);
// y pos values = top | y neg values = bottom
let y = (circle.top + scrollTop + circle.height / 2) - circleYaxis;
let isZero = checkCoordIsZero(x, y);
if(isZero !== false){
return isZero;
} else return {x, y}
};
const getCircleQuarter = (x, y) => {
if(Math.sign(x) === 1 && Math.sign(y) === 1){
// First Quarter (0° to 90°)
return {x, y, quarter: 1}
} else if(Math.sign(x) === 1 && Math.sign(y) === -1){
// Second Quarter (90° to 180°)
return {x, y, quarter: 2}
} else if(Math.sign(x) === -1 && Math.sign(y) === -1) {
// Third Quarter (180° to 270°)
return {x, y, quarter: 3}
} else if(Math.sign(x) === -1 && Math.sign(y) === 1) {
// Fourth Quarter (270° to 0°)
return {x, y, quarter: 4}
} else {
console.log('error: parameters of the function are not valid coordinates')
}
};
const calcAngleDegrees = (x, y) => {
return Math.round(Math.atan2(y, x) * 180 / Math.PI);
};
const getNewAngle = (e) => {
let cursorPosition = getCursorPosition(e);
// Case where no 0 in coordinates => return an object with the coordinates
if(isNaN(cursorPosition)) {
let angleInfos = getCircleQuarter(cursorPosition.x, cursorPosition.y);
let angle;
angle = calcAngleDegrees(angleInfos.y, angleInfos.x);
if(angleInfos.quarter === 1 || angleInfos.quarter === 2){
return angle;
} else {
return 360 + angle;
}
} else {
// Case where there was a 0 in the coordinates => return the angle
return cursorPosition;
}
};
const changeInputAngle = angle => {
anglePicker.value = angle;
};
// Change dot position in the circle corresponding to the angle
const checkRotationDirection = (angle) => {
if(90 < angle < 270){
return angle - 90
} else {
return -angle - 90;
}
};
const rotateCursor = rotation => {
let rectangleRotation = "rotate(" + rotation + "deg);";
let style = document.createElement('style');
style.type = 'text/css';
style.innerHTML = '.rotate-rect { transform:' + rectangleRotation + '}';
document.getElementsByTagName('head')[0].appendChild(style);
anglePickerRect.classList.add('rotate-rect');
};
const updateAngle = e => {
let angle = getNewAngle(e);
changeInputAngle(angle);
changeBodyBackground();
changeGradientCode();
let rotation = checkRotationDirection(angle);
rotateCursor(rotation);
};
anglePickerCircle.addEventListener('click', e => updateAngle(e));
const switchActiveCode = tab => {
if(tab.classList.contains('rgb')){
gradientCodeContainer.classList.remove('js-code-active');
rgbCodeContainer.classList.add('js-code-active');
} else {
rgbCodeContainer.classList.remove('js-code-active');
gradientCodeContainer.classList.add('js-code-active');
}
};
const changeActiveTab = tab => {
codeEditorTabs.forEach(tab => tab.classList.remove('is-active'));
tab.classList.add('is-active');
switchActiveCode(tab);
};
codeEditorTabs.forEach(tab => tab.addEventListener('click', e => changeActiveTab(e.target)));
const getTextNodesIn = (elem) => {
let textNodes = [];
if (elem) {
for (let nodes = elem.childNodes, i = nodes.length; i--;) {
let node = nodes[i], nodeType = node.nodeType;
if (nodeType === 3) {
textNodes.push(node);
}
else if (nodeType === 1 || nodeType === 9 || nodeType === 11) {
textNodes = textNodes.concat(getTextNodesIn(node));
}
}
}
return textNodes;
};
const getString = () => {
let showedLinesCode = document.querySelector('.js-code-active');
let textNodes = getTextNodesIn(showedLinesCode);
let bgCodeString = [];
let finalTextArray = [];
let codeText;
for(let i = 0; i < textNodes.length; i++) {
if(textNodes[i].wholeText.trim().length !== 0){
bgCodeString.push(textNodes[i].wholeText.replace(/\s+/g, ' '));
finalTextArray = [].concat(bgCodeString).reverse();
}
}
codeText = finalTextArray.join('').replace(/;/g, ';\n');
return codeText;
};
const copyToClipboard = str => {
const el = document.createElement('textarea');
el.value = str;
document.body.appendChild(el);
el.select();
document.execCommand('copy');
document.body.removeChild(el);
};
buttonCopy.addEventListener('click', () => copyToClipboard(getString()));
const translation = () => {
let colorPickers = document.querySelectorAll('.color-picker__container');
colorPickers.forEach(colorPicker => colorPicker.classList.add('js-translate-done'));
let anglePickers = document.querySelectorAll('.js-angle-picker');
anglePickers.forEach(anglePicker => anglePicker.classList.add('js-translate-done'));
let infoContainers = document.querySelectorAll('.info__container');
infoContainers.forEach(infoContainer => infoContainer.classList.add('info__container--showed'))
};
let delayInMilliseconds = 700;
window.addEventListener('DOMContentLoaded', () => setTimeout(() => {
translation();
}, delayInMilliseconds));