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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 | 1x 1x 1x 1x 1x 1x 52x 52x 52x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 100x 100x 48x 48x 52x 52x 52x 52x 100x 100x 1x 1x 1x 1x 1x 14x 14x 14x 14x 14x 14x 14x 1x 1x 1x 1x 1x 1x 1x 13x 13x 13x 13x 13x 13x 13x 13x 13x 11x 11x 13x 10x 10x 13x 9x 9x 13x 13x 13x 1x 1x 1x 1x 1x 1x 1x 13x 13x 13x 4x 4x 3x 3x 3x 4x 1x 1x 1x 4x 13x 13x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 13x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | /** @type {WeakRef<HTMLElement>} */
let tempDiv
/**
*
*/
function getTempDiv () {
const elem = tempDiv?.deref()
if (elem) { return elem }
const newElem = document.createElement('div')
tempDiv = new WeakRef(newElem)
return newElem
}
/**
*
* @param {string} color - color to check
* @param {string} fallback - fallback color if `color` is invalid
*/
function getCssColorOrElse (color, fallback) {
if(typeof color !== "string" || color.trim() === ''){
return fallback
}
const ele = getTempDiv()
ele.style.color = color
const result = ele.style.color.replace(/\s+/, '').toLowerCase()
ele.style.color = ''
return result || fallback
}
/**
* @returns {QRCodeCssColors} default CSS colors
*/
export function getDefaultColors () {
return {
darkColor: 'black',
lightColor: 'white',
cornerBorderColor: 'black',
cornerCenterColor: 'black',
}
}
/**
*
* @param {string} colorsVar - value of '--qrcode-color' property
* @param {QRCodeCssColors} defaultColors - current default colors
* @returns {QRCodeCssColors} updated colors
*/
function parseQrcodeColorProp (colorsVar, defaultColors) {
const currentColors = { ...defaultColors }
if (colorsVar) {
const colorsList = colorsVar.split(/\s+/)
const length = colorsList.length
if (length >= 1) {
currentColors.darkColor = getCssColorOrElse(colorsList[0], currentColors.darkColor)
}
if (length >= 2) {
currentColors.lightColor = getCssColorOrElse(colorsList[1], currentColors.lightColor)
}
if (length >= 3) {
currentColors.cornerBorderColor = getCssColorOrElse(colorsList[2], currentColors.cornerBorderColor)
}
if (length >= 4) {
currentColors.cornerCenterColor = getCssColorOrElse(colorsList[3], currentColors.cornerCenterColor)
}
}
return currentColors
}
/**
*
* @param {string} colorsVar - value of '--qrcode-corner-color' property
* @param {QRCodeCssColors} defaultColors - current default colors
* @returns {QRCodeCssColors} updated colors
*/
function parseQrcodeCornerColorProp (colorsVar, defaultColors) {
const currentColors = { ...defaultColors }
if (colorsVar) {
const colorsList = colorsVar.split(/\s+/)
if (colorsList.length === 1) {
currentColors.cornerBorderColor = getCssColorOrElse(colorsList[0], currentColors.cornerBorderColor)
currentColors.cornerCenterColor = currentColors.cornerBorderColor
}
if (colorsList.length >= 2) {
currentColors.cornerBorderColor = getCssColorOrElse(colorsList[0], currentColors.cornerBorderColor)
currentColors.cornerCenterColor = getCssColorOrElse(colorsList[1], currentColors.cornerCenterColor)
}
}
return currentColors
}
/**
* @param {HTMLElement} element - target element
* @returns {QRCodeColorProperties} cssColors to draw the QRCode
*/
function QRCodeColorProperties (element) {
const computedStyle = getComputedStyle(element)
const propertyOf = (/** @type {string} */ prop) => computedStyle.getPropertyValue(prop).trim()
return {
color: propertyOf('--qrcode-color'),
darkColor: propertyOf('--qrcode-dark-color'),
lightColor: propertyOf('--qrcode-light-color'),
cornerColor: propertyOf('--qrcode-corner-color'),
cornerBorderColor: propertyOf('--qrcode-corner-border-color'),
cornerCenterColor: propertyOf('--qrcode-corner-center-color'),
}
}
/**
* @param {QRCodeColorProperties} colorProperties - color properties
* @returns {QRCodeCssColors} cssColors to draw the QRCode
*/
export function parseQrCodeColors (colorProperties) {
let currentColors = {
...getDefaultColors(),
cornerBorderColor: '',
cornerCenterColor: '',
}
currentColors = parseQrcodeColorProp(colorProperties.color, currentColors)
currentColors.darkColor = getCssColorOrElse(colorProperties.darkColor, currentColors.darkColor)
currentColors.lightColor = getCssColorOrElse(colorProperties.lightColor, currentColors.lightColor)
currentColors = parseQrcodeCornerColorProp(colorProperties.cornerColor, currentColors)
currentColors.cornerBorderColor = getCssColorOrElse(colorProperties.cornerBorderColor, currentColors.cornerBorderColor) || currentColors.darkColor
currentColors.cornerCenterColor = getCssColorOrElse(colorProperties.cornerCenterColor, currentColors.cornerCenterColor) || currentColors.cornerBorderColor
return currentColors
}
/**
* @param {HTMLElement} element - target element
* @returns {QRCodeCssColors} cssColors to draw the QRCode
*/
export function parseQrCodeColorsFromElement (element) {
return parseQrCodeColors(QRCodeColorProperties(element))
}
/**
* @typedef {object} QRCodeCssColors
* @property {string} darkColor - color to paint the black spots of the QR Code
* @property {string} lightColor - color to paint the white spots of the QR Code
* @property {string} cornerBorderColor - color of the position probe pattern border
* @property {string} cornerCenterColor - color of the position probe pattern center
*/
/**
* @typedef {object} QRCodeColorProperties
* @property {string} color - `--qrcode-color` property value
* @property {string} darkColor - `--qrcode-dark-color` property value
* @property {string} lightColor - `--qrcode-light-color` property value
* @property {string} cornerColor - `--qrcode-corner-color` property value
* @property {string} cornerBorderColor - `--qrcode-corner-border-color` property value
* @property {string} cornerCenterColor - `--qrcode-corner-center-color` property value
*/
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