f2bcd4ad
 Graham Fairweather
Color keyboard co...
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import tinycolor from 'tinycolor2';
import {oneOf} from '../../utils/assist';
function setAlpha(data, alpha) {
const color = tinycolor(data);
const {_a} = color;
if (_a === undefined || _a === null) {
color.setAlpha(alpha || 1);
}
return color;
}
function getColor(data, colorData) {
const alpha = colorData && colorData.a;
if (colorData) {
// hsl is better than hex between conversions
if (colorData.hsl) {
return setAlpha(colorData.hsl, alpha);
}
if (colorData.hex && colorData.hex.length > 0) {
return setAlpha(colorData.hex, alpha);
}
}
return setAlpha(colorData, alpha);
}
export function changeColor(data, oldHue) {
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f2bcd4ad
Graham Fairweather
Color keyboard co...
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const color = getColor(data, colorData);
const hsl = color.toHsl();
const hsv = color.toHsv();
if (hsl.s === 0) {
hsl.h = colorData.h || (colorData.hsl && colorData.hsl.h) || oldHue || 0;
hsv.h = hsl.h;
}
// when the hsv.v is less than 0.0164 (base on test)
// because of possible loss of precision
// the result of hue and saturation would be miscalculated
if (hsv.v < 0.0164) {
hsv.h = colorData.h || (colorData.hsv && colorData.hsv.h) || 0;
hsv.s = colorData.s || (colorData.hsv && colorData.hsv.s) || 0;
}
if (hsl.l < 0.01) {
hsl.h = colorData.h || (colorData.hsl && colorData.hsl.h) || 0;
hsl.s = colorData.s || (colorData.hsl && colorData.hsl.s) || 0;
}
return {
hsl,
hex: color.toHexString().toUpperCase(),
rgba: color.toRgb(),
hsv,
oldHue: colorData.h || oldHue || hsl.h,
source: colorData.source,
a: colorData.a || color.getAlpha(),
};
}
export function clamp(value, min, max) {
if (value < min) {
return min;
}
if (value > max) {
return max;
}
return value;
}
export function getIncrement(key, keys, increment) {
return oneOf(key, keys) ? increment : 0;
}
export function getTouches(e, prop) {
return e.touches ? e.touches[0][prop] : 0;
}
export function toRGBAString(rgba) {
const {r, g, b, a} = rgba;
return `rgba(${[r, g, b, a].join(',')})`;
}
export function isValidHex(hex) {
return tinycolor(hex).isValid();
}
function checkIteratee(data, counts, letter) {
let {checked, passed} = counts;
const value = data[letter];
if (value) {
checked += 1;
if (Number.isFinite(value)) {
passed += 1;
}
}
return {checked, passed};
}
const keysToCheck = ['r', 'g', 'b', 'a', 'h', 's', 'l', 'v'];
export function simpleCheckForValidColor(data) {
const results = keysToCheck.reduce(checkIteratee.bind(null, data), {checked: 0, passed: 0});
return results.checked === results.passed ? data : undefined;
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