@tsparticles/plugin-hex-color
Version:
tsParticles hex color plugin
59 lines (58 loc) • 2.31 kB
JavaScript
(function (factory) {
if (typeof module === "object" && typeof module.exports === "object") {
var v = factory(require, exports);
if (v !== undefined) module.exports = v;
}
else if (typeof define === "function" && define.amd) {
define(["require", "exports"], factory);
}
})(function (require, exports) {
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.HexColorManager = void 0;
var RgbIndexes;
(function (RgbIndexes) {
RgbIndexes[RgbIndexes["r"] = 1] = "r";
RgbIndexes[RgbIndexes["g"] = 2] = "g";
RgbIndexes[RgbIndexes["b"] = 3] = "b";
RgbIndexes[RgbIndexes["a"] = 4] = "a";
})(RgbIndexes || (RgbIndexes = {}));
const shorthandHexRegex = /^#?([a-f\d])([a-f\d])([a-f\d])([a-f\d])?$/i, hexRegex = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})?$/i, hexRadix = 16, defaultAlpha = 1, alphaFactor = 0xff;
class HexColorManager {
constructor() {
this.key = "hex";
this.stringPrefix = "#";
}
handleColor(color) {
return this._parseString(color.value);
}
handleRangeColor(color) {
return this._parseString(color.value);
}
parseString(input) {
return this._parseString(input);
}
_parseString(hexColor) {
if (typeof hexColor !== "string") {
return;
}
if (!hexColor?.startsWith(this.stringPrefix)) {
return;
}
const hexFixed = hexColor.replace(shorthandHexRegex, (_, r, g, b, a) => {
return r + r + g + g + b + b + (a !== undefined ? a + a : "");
}), result = hexRegex.exec(hexFixed);
return result
? {
a: result[RgbIndexes.a] !== undefined
? parseInt(result[RgbIndexes.a], hexRadix) / alphaFactor
: defaultAlpha,
b: parseInt(result[RgbIndexes.b], hexRadix),
g: parseInt(result[RgbIndexes.g], hexRadix),
r: parseInt(result[RgbIndexes.r], hexRadix),
}
: undefined;
}
}
exports.HexColorManager = HexColorManager;
});