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Migrate the color picker away from jquery #1307

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257 changes: 254 additions & 3 deletions assets/js/color-select.js
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Original file line number Diff line number Diff line change
Expand Up @@ -3,8 +3,256 @@
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/

$(document).ready(function() {
$('.color_select').simpleColor({
class SimpleColor {
constructor(element, options = {}) {
this.element = element;
this.options = this.mergeOptions(options);
this.init();
}

mergeOptions(options) {
const defaults = {
defaultColor: this.element.getAttribute('defaultColor') || '#FFF',
cellWidth: parseInt(this.element.getAttribute('cellWidth')) || 25,
cellHeight: parseInt(this.element.getAttribute('cellHeight')) || 25,
cellMargin: parseInt(this.element.getAttribute('cellMargin')) || 0,
boxWidth: this.element.getAttribute('boxWidth') || '25px',
boxHeight: this.element.getAttribute('boxHeight') || '25px',
columns: parseInt(this.element.getAttribute('columns')) || 8,
insert: this.element.getAttribute('insert') || 'after',
colors: [
'990033', 'ff3366', 'cc0033', 'ff0033', 'ff9999', 'cc3366', 'ffccff', 'cc6699',
'993366', '660033', 'cc3399', 'ff99cc', 'ff66cc', 'ff99ff', 'ff6699', 'cc0066',
'ff0066', 'ff3399', 'ff0099', 'ff33cc', 'ff00cc', 'ff66ff', 'ff33ff', 'ff00ff',
'cc0099', '990066', 'cc66cc', 'cc33cc', 'cc99ff', 'cc66ff', 'cc33ff', '993399',
'cc00cc', 'cc00ff', '9900cc', '990099', 'cc99cc', '996699', '663366', '660099',
'9933cc', '660066', '9900ff', '9933ff', '9966cc', '330033', '663399', '6633cc',
'6600cc', '9966ff', '330066', '6600ff', '6633ff', 'ccccff', '9999ff', '9999cc',
'6666cc', '6666ff', '666699', '333366', '333399', '330099', '3300cc', '3300ff',
'3333ff', '3333cc', '0066ff', '0033ff', '3366ff', '3366cc', '000066', '000033',
'0000ff', '000099', '0033cc', '0000cc', '336699', '0066cc', '99ccff', '6699ff',
'003366', '6699cc', '006699', '3399cc', '0099cc', '66ccff', '3399ff', '003399',
'0099ff', '33ccff', '00ccff', '99ffff', '66ffff', '33ffff', '00ffff', '00cccc',
'009999', '669999', '99cccc', 'ccffff', '33cccc', '66cccc', '339999', '336666',
'006666', '003333', '00ffcc', '33ffcc', '33cc99', '00cc99', '66ffcc', '99ffcc',
'00ff99', '339966', '006633', '336633', '669966', '66cc66', '99ff99', '66ff66',
'339933', '99cc99', '66ff99', '33ff99', '33cc66', '00cc66', '66cc99', '009966',
'009933', '33ff66', '00ff66', 'ccffcc', 'ccff99', '99ff66', '99ff33', '00ff33',
'33ff33', '00cc33', '33cc33', '66ff33', '00ff00', '66cc33', '006600', '003300',
'009900', '33ff00', '66ff00', '99ff00', '66cc00', '00cc00', '33cc00', '339900',
'99cc66', '669933', '99cc33', '336600', '669900', '99cc00', 'ccff66', 'ccff33',
'ccff00', '999900', 'cccc00', 'cccc33', '333300', '666600', '999933', 'cccc66',
'666633', '999966', 'cccc99', 'ffffcc', 'ffff99', 'ffff66', 'ffff33', 'ffff00',
'ffcc00', 'ffcc66', 'ffcc33', 'cc9933', '996600', 'cc9900', 'ff9900', 'cc6600',
'993300', 'cc6633', '663300', 'ff9966', 'ff6633', 'ff9933', 'ff6600', 'cc3300',
'996633', '330000', '663333', '996666', 'cc9999', '993333', 'cc6666', 'ffcccc',
'ff3333', 'cc3333', 'ff6666', '660000', '990000', 'cc0000', 'ff0000', 'ff3300',
'cc9966', 'ffcc99', 'ffffff', 'cccccc', '999999', '666666', '333333', '000000',
'000000', '000000', '000000', '000000', '000000', '000000', '000000', '000000'
],
displayColorCode: this.element.getAttribute('displayColorCode') === 'true' || false,
colorCodeAlign: this.element.getAttribute('colorCodeAlign') || 'center',
colorCodeColor: this.element.getAttribute('colorCodeColor') || false,
hideInput: this.element.getAttribute('hideInput') !== 'false',
onSelect: null,
onCellEnter: null,
onClose: null,
livePreview: false,
displayCSS: { 'width': '25px', 'height': '25px' },
chooserCSS: { 'left': '25px', 'border': '0' }
};

return Object.assign({}, defaults, options);
}

init() {
this.options.totalWidth = this.options.columns * (this.options.cellWidth + (2 * this.options.cellMargin));
this.options.totalHeight = Math.ceil(this.options.colors.length / this.options.columns) * (this.options.cellHeight + (2 * this.options.cellMargin));

const defaultChooserCSS = {
'border': '1px solid #000',
'margin': '0 0 0 5px',
'width': this.options.totalWidth + 'px',
'height': this.options.totalHeight + 'px',
'top': '0',
'left': this.options.boxWidth,
'position': 'absolute',
'background-color': '#fff'
};

const defaultDisplayCSS = {
'background-color': this.options.defaultColor,
'border': '1px solid #000',
'width': this.options.boxWidth,
'height': this.options.boxHeight,
'line-height': this.options.boxHeight,
'cursor': 'pointer'
};

this.options.chooserCSS = Object.assign({}, defaultChooserCSS, this.options.chooserCSS);
this.options.displayCSS = Object.assign({}, defaultDisplayCSS, this.options.displayCSS);

this.buildColorPicker();
}

getAdaptiveTextColor(hexColor) {
const matches = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hexColor);
if (!matches) return '#FFF';

const r = parseInt(matches[1], 16);
const g = parseInt(matches[2], 16);
const b = parseInt(matches[3], 16);
const isWhite = (0.213 * r / 255) + (0.715 * g / 255) + (0.072 * b / 255) < 0.5;

return isWhite ? '#FFF' : '#000';
}

setColor(displayBox, color, options) {
const textColor = options.colorCodeColor || this.getAdaptiveTextColor(color);

displayBox.dataset.color = color;
Object.assign(displayBox.style, {
color: textColor,
textAlign: options.colorCodeAlign,
backgroundColor: color
});

if (options.displayColorCode === true) {
displayBox.textContent = color;
}
}

buildColorPicker() {
const container = document.createElement('div');
container.className = 'simpleColorContainer';
container.style.position = 'relative';

const defaultColor = (this.element.value && this.element.value !== '') ? this.element.value : this.options.defaultColor;

const displayBox = document.createElement('div');
displayBox.className = 'simpleColorDisplay';
Object.assign(displayBox.style, this.options.displayCSS);
this.setColor(displayBox, defaultColor, this.options);
container.appendChild(displayBox);

if (this.options.hideInput) {
this.element.style.display = 'none';
}

displayBox.addEventListener('click', (e) => {
e.stopPropagation();
this.toggleChooser(container, displayBox);
});

if (this.options.insert === 'before') {
this.element.parentNode.insertBefore(container, this.element);
} else {
this.element.parentNode.insertBefore(container, this.element.nextSibling);
}

this.element.colorPickerData = { container, displayBox };
}

toggleChooser(container, displayBox) {
const existingChooser = container.querySelector('.simpleColorChooser');

if (existingChooser) {
existingChooser.style.display = existingChooser.style.display === 'none' ? 'block' : 'none';
return;
}

const chooser = document.createElement('div');
chooser.className = 'simpleColorChooser';
Object.assign(chooser.style, this.options.chooserCSS);
container.appendChild(chooser);

this.options.colors.forEach(color => {
const cell = document.createElement('div');
cell.className = 'simpleColorCell';
cell.id = color;
Object.assign(cell.style, {
width: this.options.cellWidth + 'px',
height: this.options.cellHeight + 'px',
margin: this.options.cellMargin + 'px',
cursor: 'pointer',
lineHeight: this.options.cellHeight + 'px',
fontSize: '1px',
float: 'left',
backgroundColor: '#' + color
});

if (this.options.onCellEnter || this.options.livePreview) {
cell.addEventListener('mouseenter', () => {
if (this.options.onCellEnter) {
this.options.onCellEnter(color, this.element);
}
if (this.options.livePreview) {
this.setColor(displayBox, '#' + color, this.options);
}
});
}

cell.addEventListener('click', (e) => {
e.stopPropagation();
const selectedColor = '#' + color;
this.element.value = selectedColor;

const changeEvent = new Event('change', { bubbles: true });
this.element.dispatchEvent(changeEvent);

this.setColor(displayBox, selectedColor, this.options);
chooser.style.display = 'none';

if (this.options.displayColorCode) {
displayBox.textContent = selectedColor;
}

if (this.options.onSelect) {
this.options.onSelect(color, this.element);
}
});

chooser.appendChild(cell);
});

const closeHandler = (e) => {
if (!container.contains(e.target)) {
chooser.style.display = 'none';
this.setColor(displayBox, displayBox.dataset.color || this.options.defaultColor, this.options);
document.removeEventListener('click', closeHandler);

if (this.options.onClose) {
this.options.onClose(this.element);
}
}
};

setTimeout(() => {
document.addEventListener('click', closeHandler);
}, 0);
}

static init(selector, options) {
const elements = typeof selector === 'string' ? document.querySelectorAll(selector) : [selector];
elements.forEach(element => {
if (!element.simpleColorInstance) {
element.simpleColorInstance = new SimpleColor(element, options);
}
});
}

closeChooser() {
if (this.element.colorPickerData) {
const chooser = this.element.colorPickerData.container.querySelector('.simpleColorChooser');
if (chooser) {
chooser.style.display = 'none';
}
}
}
}

document.addEventListener('DOMContentLoaded', function() {
SimpleColor.init('.color_select', {
colors: [
'e11d21', 'eb6420', 'fbca04', '009800', '006b75', '207de5', '0052cc', '5319e7',
'f7c6c7', 'fad8c7', 'fef2c0', 'bfe5bf', 'bfdadc', 'c7def8', 'bfd4f2', 'd4c5f9'
Expand All @@ -16,7 +264,10 @@ $(document).ready(function() {
displayCSS: { 'width': '25px', 'height': '25px' },
chooserCSS: { 'left': '25px', 'border': '0' },
onSelect: function(hex, element) {
$('#' + element.attr('id') + '_display').val(hex);
const displayElement = document.getElementById(element.id + '_display');
if (displayElement) {
displayElement.value = '#' + hex;
}
}
});
});
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