@forward-software/reveal.js-qrcodes
Version:
Custom plugin for Reveal.js to show QR Codes by adding a single class to HTML elements
967 lines (950 loc) • 42.3 kB
JavaScript
(function (global, factory) {
typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
typeof define === 'function' && define.amd ? define(factory) :
(global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.RevealQRCodes = factory());
})(this, (function () { 'use strict';
var QRMode;
(function (QRMode) {
QRMode[QRMode["MODE_NUMBER"] = 1] = "MODE_NUMBER";
QRMode[QRMode["MODE_ALPHA_NUM"] = 2] = "MODE_ALPHA_NUM";
QRMode[QRMode["MODE_8BIT_BYTE"] = 4] = "MODE_8BIT_BYTE";
QRMode[QRMode["MODE_KANJI"] = 8] = "MODE_KANJI";
})(QRMode || (QRMode = {}));
var QRMaskPattern;
(function (QRMaskPattern) {
QRMaskPattern[QRMaskPattern["PATTERN000"] = 0] = "PATTERN000";
QRMaskPattern[QRMaskPattern["PATTERN001"] = 1] = "PATTERN001";
QRMaskPattern[QRMaskPattern["PATTERN010"] = 2] = "PATTERN010";
QRMaskPattern[QRMaskPattern["PATTERN011"] = 3] = "PATTERN011";
QRMaskPattern[QRMaskPattern["PATTERN100"] = 4] = "PATTERN100";
QRMaskPattern[QRMaskPattern["PATTERN101"] = 5] = "PATTERN101";
QRMaskPattern[QRMaskPattern["PATTERN110"] = 6] = "PATTERN110";
QRMaskPattern[QRMaskPattern["PATTERN111"] = 7] = "PATTERN111";
})(QRMaskPattern || (QRMaskPattern = {}));
const PATTERN_POSITION_TABLE = [[], [6, 18], [6, 22], [6, 26], [6, 30], [6, 34], [6, 22, 38], [6, 24, 42], [6, 26, 46], [6, 28, 50], [6, 30, 54], [6, 32, 58], [6, 34, 62], [6, 26, 46, 66], [6, 26, 48, 70], [6, 26, 50, 74], [6, 30, 54, 78], [6, 30, 56, 82], [6, 30, 58, 86], [6, 34, 62, 90], [6, 28, 50, 72, 94], [6, 26, 50, 74, 98], [6, 30, 54, 78, 102], [6, 28, 54, 80, 106], [6, 32, 58, 84, 110], [6, 30, 58, 86, 114], [6, 34, 62, 90, 118], [6, 26, 50, 74, 98, 122], [6, 30, 54, 78, 102, 126], [6, 26, 52, 78, 104, 130], [6, 30, 56, 82, 108, 134], [6, 34, 60, 86, 112, 138], [6, 30, 58, 86, 114, 142], [6, 34, 62, 90, 118, 146], [6, 30, 54, 78, 102, 126, 150], [6, 24, 50, 76, 102, 128, 154], [6, 28, 54, 80, 106, 132, 158], [6, 32, 58, 84, 110, 136, 162], [6, 26, 54, 82, 110, 138, 166], [6, 30, 58, 86, 114, 142, 170]];
const G15 = 1 << 10 | 1 << 8 | 1 << 5 | 1 << 4 | 1 << 2 | 1 << 1 | 1 << 0;
const G18 = 1 << 12 | 1 << 11 | 1 << 10 | 1 << 9 | 1 << 8 | 1 << 5 | 1 << 2 | 1 << 0;
const G15_MASK = 1 << 14 | 1 << 12 | 1 << 10 | 1 << 4 | 1 << 1;
function galoisFieldLog(n) {
var _a;
if (typeof n !== "number" || n < 1) {
console.warn(`galoisFieldLog(${n}): input is not a number or is less than 1`);
return 0;
}
if (LOG_TABLE[n] === null || typeof LOG_TABLE[n] !== "number") {
console.warn(`galoisFieldLog(${n}): value retrieved from LOG_TABLE (${LOG_TABLE[n]}) is null or not a number`);
return 0;
}
return (_a = LOG_TABLE[n]) !== null && _a !== void 0 ? _a : 0;
}
function galoisFieldExp(n) {
if (typeof n !== "number") {
console.warn(`galoisFieldExp(${n}): input is not a number`);
return 0;
}
while (n < 0) {
n += 255;
}
while (n >= 256) {
n -= 255;
}
return EXP_TABLE[n];
}
const EXP_TABLE = [1, 2, 4, 8, 16, 32, 64, 128, 29, 58, 116, 232, 205, 135, 19, 38, 76, 152, 45, 90, 180, 117, 234, 201, 143, 3, 6, 12, 24, 48, 96, 192, 157, 39, 78, 156, 37, 74, 148, 53, 106, 212, 181, 119, 238, 193, 159, 35, 70, 140, 5, 10, 20, 40, 80, 160, 93, 186, 105, 210, 185, 111, 222, 161, 95, 190, 97, 194, 153, 47, 94, 188, 101, 202, 137, 15, 30, 60, 120, 240, 253, 231, 211, 187, 107, 214, 177, 127, 254, 225, 223, 163, 91, 182, 113, 226, 217, 175, 67, 134, 17, 34, 68, 136, 13, 26, 52, 104, 208, 189, 103, 206, 129, 31, 62, 124, 248, 237, 199, 147, 59, 118, 236, 197, 151, 51, 102, 204, 133, 23, 46, 92, 184, 109, 218, 169, 79, 158, 33, 66, 132, 21, 42, 84, 168, 77, 154, 41, 82, 164, 85, 170, 73, 146, 57, 114, 228, 213, 183, 115, 230, 209, 191, 99, 198, 145, 63, 126, 252, 229, 215, 179, 123, 246, 241, 255, 227, 219, 171, 75, 150, 49, 98, 196, 149, 55, 110, 220, 165, 87, 174, 65, 130, 25, 50, 100, 200, 141, 7, 14, 28, 56, 112, 224, 221, 167, 83, 166, 81, 162, 89, 178, 121, 242, 249, 239, 195, 155, 43, 86, 172, 69, 138, 9, 18, 36, 72, 144, 61, 122, 244, 245, 247, 243, 251, 235, 203, 139, 11, 22, 44, 88, 176, 125, 250, 233, 207, 131, 27, 54, 108, 216, 173, 71, 142, 1];
const LOG_TABLE = [null, 0, 1, 25, 2, 50, 26, 198, 3, 223, 51, 238, 27, 104, 199, 75, 4, 100, 224, 14, 52, 141, 239, 129, 28, 193, 105, 248, 200, 8, 76, 113, 5, 138, 101, 47, 225, 36, 15, 33, 53, 147, 142, 218, 240, 18, 130, 69, 29, 181, 194, 125, 106, 39, 249, 185, 201, 154, 9, 120, 77, 228, 114, 166, 6, 191, 139, 98, 102, 221, 48, 253, 226, 152, 37, 179, 16, 145, 34, 136, 54, 208, 148, 206, 143, 150, 219, 189, 241, 210, 19, 92, 131, 56, 70, 64, 30, 66, 182, 163, 195, 72, 126, 110, 107, 58, 40, 84, 250, 133, 186, 61, 202, 94, 155, 159, 10, 21, 121, 43, 78, 212, 229, 172, 115, 243, 167, 87, 7, 112, 192, 247, 140, 128, 99, 13, 103, 74, 222, 237, 49, 197, 254, 24, 227, 165, 153, 119, 38, 184, 180, 124, 17, 68, 146, 217, 35, 32, 137, 46, 55, 63, 209, 91, 149, 188, 207, 205, 144, 135, 151, 178, 220, 252, 190, 97, 242, 86, 211, 171, 20, 42, 93, 158, 132, 60, 57, 83, 71, 109, 65, 162, 31, 45, 67, 216, 183, 123, 164, 118, 196, 23, 73, 236, 127, 12, 111, 246, 108, 161, 59, 82, 41, 157, 85, 170, 251, 96, 134, 177, 187, 204, 62, 90, 203, 89, 95, 176, 156, 169, 160, 81, 11, 245, 22, 235, 122, 117, 44, 215, 79, 174, 213, 233, 230, 231, 173, 232, 116, 214, 244, 234, 168, 80, 88, 175];
class QRPolynomial {
constructor(num, shift) {
if (num.length === undefined) {
throw new Error(num.length + "/" + shift);
}
let offset = 0;
while (offset < num.length && num[offset] === 0) {
offset++;
}
this.num = new Array(num.length - offset + shift);
for (let i = 0; i < num.length - offset; i++) {
this.num[i] = num[i + offset];
}
}
get(index) {
return this.num[index];
}
getLength() {
return this.num.length;
}
multiply(e) {
const num = new Array(this.getLength() + e.getLength() - 1);
for (let i = 0; i < this.getLength(); i++) {
for (let j = 0; j < e.getLength(); j++) {
num[i + j] ^= galoisFieldExp(galoisFieldLog(this.get(i)) + galoisFieldLog(e.get(j)));
}
}
return new QRPolynomial(num, 0);
}
mod(e) {
if (this.getLength() - e.getLength() < 0) {
return this;
}
const ratio = galoisFieldLog(this.get(0)) - galoisFieldLog(e.get(0));
const num = new Array(this.getLength());
for (let i = 0; i < this.getLength(); i++) {
num[i] = this.get(i);
}
for (let i = 0; i < e.getLength(); i++) {
num[i] ^= galoisFieldExp(galoisFieldLog(e.get(i)) + ratio);
}
return new QRPolynomial(num, 0).mod(e);
}
}
function getBCHTypeInfo(data) {
let d = data << 10;
while (getBCHDigit(d) - getBCHDigit(G15) >= 0) {
d ^= G15 << getBCHDigit(d) - getBCHDigit(G15);
}
return (data << 10 | d) ^ G15_MASK;
}
function getBCHTypeNumber(data) {
let d = data << 12;
while (getBCHDigit(d) - getBCHDigit(G18) >= 0) {
d ^= G18 << getBCHDigit(d) - getBCHDigit(G18);
}
return data << 12 | d;
}
function getBCHDigit(data) {
let digit = 0;
while (data !== 0) {
digit++;
data >>>= 1;
}
return digit;
}
function getPatternPosition(typeNumber) {
return PATTERN_POSITION_TABLE[typeNumber - 1];
}
function getMask(maskPattern, i, j) {
switch (maskPattern) {
case QRMaskPattern.PATTERN000:
return (i + j) % 2 === 0;
case QRMaskPattern.PATTERN001:
return i % 2 === 0;
case QRMaskPattern.PATTERN010:
return j % 3 === 0;
case QRMaskPattern.PATTERN011:
return (i + j) % 3 === 0;
case QRMaskPattern.PATTERN100:
return (Math.floor(i / 2) + Math.floor(j / 3)) % 2 === 0;
case QRMaskPattern.PATTERN101:
return i * j % 2 + i * j % 3 === 0;
case QRMaskPattern.PATTERN110:
return (i * j % 2 + i * j % 3) % 2 === 0;
case QRMaskPattern.PATTERN111:
return (i * j % 3 + (i + j) % 2) % 2 === 0;
default:
throw new Error(`bad maskPattern: ${maskPattern}`);
}
}
function getErrorCorrectPolynomial(errorCorrectLength) {
let a = new QRPolynomial([1], 0);
for (let i = 0; i < errorCorrectLength; i++) {
a = a.multiply(new QRPolynomial([1, galoisFieldExp(i)], 0));
}
return a;
}
function getLostPoint(qrCode) {
const moduleCount = qrCode.getModuleCount();
let lostPoint = 0;
for (let row = 0; row < moduleCount; row++) {
for (let col = 0; col < moduleCount; col++) {
let sameCount = 0;
const dark = qrCode.isDark(row, col);
for (let r = -1; r <= 1; r++) {
if (row + r < 0 || moduleCount <= row + r) {
continue;
}
for (let c = -1; c <= 1; c++) {
if (col + c < 0 || moduleCount <= col + c) {
continue;
}
if (r === 0 && c === 0) {
continue;
}
if (dark === qrCode.isDark(row + r, col + c)) {
sameCount++;
}
}
}
if (sameCount > 5) {
lostPoint += 3 + sameCount - 5;
}
}
}
for (let row = 0; row < moduleCount - 1; row++) {
for (let col = 0; col < moduleCount - 1; col++) {
let count = 0;
if (qrCode.isDark(row, col)) count++;
if (qrCode.isDark(row + 1, col)) count++;
if (qrCode.isDark(row, col + 1)) count++;
if (qrCode.isDark(row + 1, col + 1)) count++;
if (count === 0 || count === 4) {
lostPoint += 3;
}
}
}
for (let row = 0; row < moduleCount; row++) {
for (let col = 0; col < moduleCount - 6; col++) {
if (qrCode.isDark(row, col) && !qrCode.isDark(row, col + 1) && qrCode.isDark(row, col + 2) && qrCode.isDark(row, col + 3) && qrCode.isDark(row, col + 4) && !qrCode.isDark(row, col + 5) && qrCode.isDark(row, col + 6)) {
lostPoint += 40;
}
}
}
for (let col = 0; col < moduleCount; col++) {
for (let row = 0; row < moduleCount - 6; row++) {
if (qrCode.isDark(row, col) && !qrCode.isDark(row + 1, col) && qrCode.isDark(row + 2, col) && qrCode.isDark(row + 3, col) && qrCode.isDark(row + 4, col) && !qrCode.isDark(row + 5, col) && qrCode.isDark(row + 6, col)) {
lostPoint += 40;
}
}
}
let darkCount = 0;
for (let col = 0; col < moduleCount; col++) {
for (let row = 0; row < moduleCount; row++) {
if (qrCode.isDark(row, col)) {
darkCount++;
}
}
}
const ratio = Math.abs(100 * darkCount / moduleCount / moduleCount - 50) / 5;
lostPoint += ratio * 10;
return lostPoint;
}
function encodeUTF8(str) {
const bytes = [];
for (let i = 0; i < str.length; i++) {
const code = str.charCodeAt(i);
const byteArray = getUTF8Bytes(code);
bytes.push(...byteArray);
}
if (bytes.length !== str.length) {
bytes.unshift(0xEF, 0xBB, 0xBF);
}
return bytes;
}
function getUTF8Bytes(code) {
if (code > 0x10000) {
return [0xF0 | (code & 0x1C0000) >>> 18, 0x80 | (code & 0x3F000) >>> 12, 0x80 | (code & 0xFC0) >>> 6, 0x80 | code & 0x3F];
}
if (code > 0x800) {
return [0xE0 | (code & 0xF000) >>> 12, 0x80 | (code & 0xFC0) >>> 6, 0x80 | code & 0x3F];
}
if (code > 0x80) {
return [0xC0 | (code & 0x7C0) >>> 6, 0x80 | code & 0x3F];
}
return [code];
}
function createQR8bitByte(data) {
const encodedData = encodeUTF8(data);
return {
data: encodedData,
length: encodedData.length,
mode: QRMode.MODE_8BIT_BYTE
};
}
function getLengthInBits(qr8bitByte, type) {
if (type > 40) {
throw new Error(`type: ${type}`);
}
if (1 <= type && type < 10) {
switch (qr8bitByte.mode) {
case QRMode.MODE_NUMBER:
return 10;
case QRMode.MODE_ALPHA_NUM:
return 9;
case QRMode.MODE_8BIT_BYTE:
return 8;
case QRMode.MODE_KANJI:
return 8;
default:
throw new Error(`mode: ${qr8bitByte.mode}`);
}
}
if (type < 27) {
switch (qr8bitByte.mode) {
case QRMode.MODE_NUMBER:
return 12;
case QRMode.MODE_ALPHA_NUM:
return 11;
case QRMode.MODE_8BIT_BYTE:
return 16;
case QRMode.MODE_KANJI:
return 10;
default:
throw new Error(`mode: ${qr8bitByte.mode}`);
}
}
switch (qr8bitByte.mode) {
case QRMode.MODE_NUMBER:
return 14;
case QRMode.MODE_ALPHA_NUM:
return 13;
case QRMode.MODE_8BIT_BYTE:
return 16;
case QRMode.MODE_KANJI:
return 12;
default:
throw new Error(`mode: ${qr8bitByte.mode}`);
}
}
function createEmptyQRBitBuffer() {
return {
data: [],
length: 0
};
}
function createQRBitBuffer(typeNumber, dataList) {
const buffer = createEmptyQRBitBuffer();
return dataList.reduce((prevBuffer, data) => {
let newBuffer = putDataInto(prevBuffer, data.mode, 4);
newBuffer = putDataInto(newBuffer, data.length, getLengthInBits(data, typeNumber));
return writeQR8bitByteTo(newBuffer, data);
}, buffer);
}
function cloneQRBitBuffer(originalBuffer) {
return {
data: [...originalBuffer.data],
length: originalBuffer.length
};
}
function putDataInto(buffer, num, length) {
if (num < 0 || num >= 1 << length) {
throw new Error(`Number ${num} is too large for ${length} bits`);
}
let newBuffer = Object.assign({}, buffer);
for (let i = 0; i < length; i++) {
newBuffer = appendBitTo(newBuffer, (num >>> length - i - 1 & 1) === 1);
}
return newBuffer;
}
function appendBitTo(buffer, bit) {
const newBuffer = Object.assign({}, buffer);
const bufIndex = Math.floor(newBuffer.length / 8);
if (newBuffer.data.length <= bufIndex) {
newBuffer.data = [...newBuffer.data, 0];
}
if (bit) {
newBuffer.data[bufIndex] |= 0x80 >>> newBuffer.length % 8;
}
newBuffer.length++;
return newBuffer;
}
function writeQR8bitByteTo(buffer, qr8bitByte) {
return qr8bitByte.data.reduce((buff, byte) => putDataInto(buff, byte, 8), buffer);
}
function getQRBitBufferBit(buffer, index) {
if (index < 0 || index >= buffer.length) {
throw new Error("Index out of bounds");
}
return buffer.data[index];
}
const PAD0 = 0xec;
const PAD1 = 0x11;
function padQRBitBuffer(buffer, totalSize) {
let newState = cloneQRBitBuffer(buffer);
if (newState.length + 4 <= totalSize * 8) {
newState = putDataInto(newState, 0, 4);
}
while (newState.length % 8 !== 0) {
newState = appendBitTo(newState, false);
}
while (newState.length < totalSize * 8) {
newState = putDataInto(newState, PAD0, 8);
if (newState.length >= totalSize * 8) break;
newState = putDataInto(newState, PAD1, 8);
}
return newState;
}
function validateQRBitBufferSize(buffer, totalSize) {
return buffer.length <= totalSize * 8;
}
function calculateRSBlocksTotalDataCount(rsBlocks) {
return rsBlocks.reduce((sum, block) => sum + block.dataCount, 0);
}
function getRSBlocks(type, errorCorrectLevel) {
const rsBlock = getRSBlockTable(type, errorCorrectLevel);
if (!rsBlock) {
throw new Error("bad RS block @ type:" + type + "/errorCorrectLevel:" + errorCorrectLevel);
}
const length = rsBlock.length / 3;
const rsBlockList = [];
for (let i = 0; i < length; i++) {
const count = rsBlock[i * 3 + 0];
const totalCount = rsBlock[i * 3 + 1];
const dataCount = rsBlock[i * 3 + 2];
for (let j = 0; j < count; j++) {
rsBlockList.push({
dataCount,
totalCount
});
}
}
return rsBlockList;
}
function getRSBlockTable(type, errorCorrectLevel) {
switch (errorCorrectLevel) {
case 1:
return RS_BLOCK_TABLE[(type - 1) * 4 + 0];
case 0:
return RS_BLOCK_TABLE[(type - 1) * 4 + 1];
case 3:
return RS_BLOCK_TABLE[(type - 1) * 4 + 2];
case 2:
return RS_BLOCK_TABLE[(type - 1) * 4 + 3];
default:
return undefined;
}
}
const RS_BLOCK_TABLE = [[1, 26, 19], [1, 26, 16], [1, 26, 13], [1, 26, 9], [1, 44, 34], [1, 44, 28], [1, 44, 22], [1, 44, 16], [1, 70, 55], [1, 70, 44], [2, 35, 17], [2, 35, 13], [1, 100, 80], [2, 50, 32], [2, 50, 24], [4, 25, 9], [1, 134, 108], [2, 67, 43], [2, 33, 15, 2, 34, 16], [2, 33, 11, 2, 34, 12], [2, 86, 68], [4, 43, 27], [4, 43, 19], [4, 43, 15], [2, 98, 78], [4, 49, 31], [2, 32, 14, 4, 33, 15], [4, 39, 13, 1, 40, 14], [2, 121, 97], [2, 60, 38, 2, 61, 39], [4, 40, 18, 2, 41, 19], [4, 40, 14, 2, 41, 15], [2, 146, 116], [3, 58, 36, 2, 59, 37], [4, 36, 16, 4, 37, 17], [4, 36, 12, 4, 37, 13], [2, 86, 68, 2, 87, 69], [4, 69, 43, 1, 70, 44], [6, 43, 19, 2, 44, 20], [6, 43, 15, 2, 44, 16], [4, 101, 81], [1, 80, 50, 4, 81, 51], [4, 50, 22, 4, 51, 23], [3, 36, 12, 8, 37, 13], [2, 116, 92, 2, 117, 93], [6, 58, 36, 2, 59, 37], [4, 46, 20, 6, 47, 21], [7, 42, 14, 4, 43, 15], [4, 133, 107], [8, 59, 37, 1, 60, 38], [8, 44, 20, 4, 45, 21], [12, 33, 11, 4, 34, 12], [3, 145, 115, 1, 146, 116], [4, 64, 40, 5, 65, 41], [11, 36, 16, 5, 37, 17], [11, 36, 12, 5, 37, 13], [5, 109, 87, 1, 110, 88], [5, 65, 41, 5, 66, 42], [5, 54, 24, 7, 55, 25], [11, 36, 12], [5, 122, 98, 1, 123, 99], [7, 73, 45, 3, 74, 46], [15, 43, 19, 2, 44, 20], [3, 45, 15, 13, 46, 16], [1, 135, 107, 5, 136, 108], [10, 74, 46, 1, 75, 47], [1, 50, 22, 15, 51, 23], [2, 42, 14, 17, 43, 15], [5, 150, 120, 1, 151, 121], [9, 69, 43, 4, 70, 44], [17, 50, 22, 1, 51, 23], [2, 42, 14, 19, 43, 15], [3, 141, 113, 4, 142, 114], [3, 70, 44, 11, 71, 45], [17, 47, 21, 4, 48, 22], [9, 39, 13, 16, 40, 14], [3, 135, 107, 5, 136, 108], [3, 67, 41, 13, 68, 42], [15, 54, 24, 5, 55, 25], [15, 43, 15, 10, 44, 16], [4, 144, 116, 4, 145, 117], [17, 68, 42], [17, 50, 22, 6, 51, 23], [19, 46, 16, 6, 47, 17], [2, 139, 111, 7, 140, 112], [17, 74, 46], [7, 54, 24, 16, 55, 25], [34, 37, 13], [4, 151, 121, 5, 152, 122], [4, 75, 47, 14, 76, 48], [11, 54, 24, 14, 55, 25], [16, 45, 15, 14, 46, 16], [6, 147, 117, 4, 148, 118], [6, 73, 45, 14, 74, 46], [11, 54, 24, 16, 55, 25], [30, 46, 16, 2, 47, 17], [8, 132, 106, 4, 133, 107], [8, 75, 47, 13, 76, 48], [7, 54, 24, 22, 55, 25], [22, 45, 15, 13, 46, 16], [10, 142, 114, 2, 143, 115], [19, 74, 46, 4, 75, 47], [28, 50, 22, 6, 51, 23], [33, 46, 16, 4, 47, 17], [8, 152, 122, 4, 153, 123], [22, 73, 45, 3, 74, 46], [8, 53, 23, 26, 54, 24], [12, 45, 15, 28, 46, 16], [3, 147, 117, 10, 148, 118], [3, 73, 45, 23, 74, 46], [4, 54, 24, 31, 55, 25], [11, 45, 15, 31, 46, 16], [7, 146, 116, 7, 147, 117], [21, 73, 45, 7, 74, 46], [1, 53, 23, 37, 54, 24], [19, 45, 15, 26, 46, 16], [5, 145, 115, 10, 146, 116], [19, 75, 47, 10, 76, 48], [15, 54, 24, 25, 55, 25], [23, 45, 15, 25, 46, 16], [13, 145, 115, 3, 146, 116], [2, 74, 46, 29, 75, 47], [42, 54, 24, 1, 55, 25], [23, 45, 15, 28, 46, 16], [17, 145, 115], [10, 74, 46, 23, 75, 47], [10, 54, 24, 35, 55, 25], [19, 45, 15, 35, 46, 16], [17, 145, 115, 1, 146, 116], [14, 74, 46, 21, 75, 47], [29, 54, 24, 19, 55, 25], [11, 45, 15, 46, 46, 16], [13, 145, 115, 6, 146, 116], [14, 74, 46, 23, 75, 47], [44, 54, 24, 7, 55, 25], [59, 46, 16, 1, 47, 17], [12, 151, 121, 7, 152, 122], [12, 75, 47, 26, 76, 48], [39, 54, 24, 14, 55, 25], [22, 45, 15, 41, 46, 16], [6, 151, 121, 14, 152, 122], [6, 75, 47, 34, 76, 48], [46, 54, 24, 10, 55, 25], [2, 45, 15, 64, 46, 16], [17, 152, 122, 4, 153, 123], [29, 74, 46, 14, 75, 47], [49, 54, 24, 10, 55, 25], [24, 45, 15, 46, 46, 16], [4, 152, 122, 18, 153, 123], [13, 74, 46, 32, 75, 47], [48, 54, 24, 14, 55, 25], [42, 45, 15, 32, 46, 16], [20, 147, 117, 4, 148, 118], [40, 75, 47, 7, 76, 48], [43, 54, 24, 22, 55, 25], [10, 45, 15, 67, 46, 16], [19, 148, 118, 6, 149, 119], [18, 75, 47, 31, 76, 48], [34, 54, 24, 34, 55, 25], [20, 45, 15, 61, 46, 16]];
class QRCodeModelImpl {
constructor(typeNumber, errorCorrectLevel) {
this.typeNumber = typeNumber;
this.errorCorrectLevel = errorCorrectLevel;
this.modules = [];
this.moduleCount = 0;
this.dataCache = undefined;
this.dataList = [];
}
static createData(typeNumber, errorCorrectLevel, dataList) {
const rsBlocks = getRSBlocks(typeNumber, errorCorrectLevel);
const totalDataCount = calculateRSBlocksTotalDataCount(rsBlocks);
let buffer = createQRBitBuffer(typeNumber, dataList);
if (!validateQRBitBufferSize(buffer, totalDataCount)) {
throw new Error(`code length overflow. (${buffer.length})`);
}
buffer = padQRBitBuffer(buffer, totalDataCount);
return this.createBytes(buffer, rsBlocks);
}
static createBytes(buffer, rsBlocks) {
const {
dcdata,
ecdata,
maxDcCount,
maxEcCount
} = this.prepareDataBlocks(buffer, rsBlocks);
return this.interleaveData(dcdata, ecdata, maxDcCount, maxEcCount, rsBlocks);
}
static prepareDataBlocks(buffer, rsBlocks) {
let offset = 0;
let maxDcCount = 0;
let maxEcCount = 0;
const dcdata = new Array(rsBlocks.length);
const ecdata = new Array(rsBlocks.length);
rsBlocks.forEach((block, r) => {
const {
dcCount,
ecCount
} = this.processBlock(block, buffer, offset, r, dcdata, ecdata);
maxDcCount = Math.max(maxDcCount, dcCount);
maxEcCount = Math.max(maxEcCount, ecCount);
offset += dcCount;
});
return {
dcdata,
ecdata,
maxDcCount,
maxEcCount
};
}
static processBlock(block, buffer, offset, r, dcdata, ecdata) {
const dcCount = block.dataCount;
const ecCount = block.totalCount - dcCount;
dcdata[r] = this.extractData(buffer, offset, dcCount);
ecdata[r] = this.generateErrorCorrection(dcdata[r], ecCount);
return {
dcCount,
ecCount
};
}
static extractData(buffer, offset, count) {
return Array.from({
length: count
}, (_, i) => 0xff & getQRBitBufferBit(buffer, i + offset));
}
static generateErrorCorrection(data, ecCount) {
const rsPoly = getErrorCorrectPolynomial(ecCount);
const modPoly = new QRPolynomial(data, rsPoly.getLength() - 1).mod(rsPoly);
return Array.from({
length: rsPoly.getLength() - 1
}, (_, i) => {
const modIndex = i + modPoly.getLength() - (rsPoly.getLength() - 1);
return modIndex >= 0 ? modPoly.get(modIndex) : 0;
});
}
static interleaveData(dcdata, ecdata, maxDcCount, maxEcCount, rsBlocks) {
const totalCodeCount = rsBlocks.reduce((sum, block) => sum + block.totalCount, 0);
const data = new Array(totalCodeCount);
let index = 0;
for (let i = 0; i < maxDcCount; i++) {
for (let r = 0; r < rsBlocks.length; r++) {
if (i < dcdata[r].length) {
data[index++] = dcdata[r][i];
}
}
}
for (let i = 0; i < maxEcCount; i++) {
for (let r = 0; r < rsBlocks.length; r++) {
if (i < ecdata[r].length) {
data[index++] = ecdata[r][i];
}
}
}
return data;
}
addData(data) {
this.dataList.push(createQR8bitByte(data));
this.dataCache = undefined;
}
isDark(row, col) {
if (row < 0 || this.moduleCount <= row || col < 0 || this.moduleCount <= col) {
throw new Error(`${row},${col}`);
}
return this.modules[row][col] || false;
}
getModuleCount() {
return this.moduleCount;
}
make() {
this.makeImpl(false, this.getBestMaskPattern());
}
makeImpl(test, maskPattern) {
this.initializeModules();
this.setupPatterns(test, maskPattern);
this.mapData(this.getDataCache(), maskPattern);
}
initializeModules() {
this.moduleCount = this.typeNumber * 4 + 17;
this.modules = Array(this.moduleCount).fill(null).map(() => Array(this.moduleCount).fill(null));
}
setupPatterns(test, maskPattern) {
this.setupPositionProbePattern(0, 0);
this.setupPositionProbePattern(this.moduleCount - 7, 0);
this.setupPositionProbePattern(0, this.moduleCount - 7);
this.setupPositionAdjustPattern();
this.setupTimingPattern();
this.setupTypeInfo(test, maskPattern);
if (this.typeNumber >= 7) {
this.setupTypeNumber(test);
}
}
getDataCache() {
if (!this.dataCache) {
this.dataCache = QRCodeModelImpl.createData(this.typeNumber, this.errorCorrectLevel, this.dataList);
}
return this.dataCache;
}
setupPositionProbePattern(row, col) {
for (let r = -1; r <= 7; r++) {
if (row + r <= -1 || this.moduleCount <= row + r) continue;
for (let c = -1; c <= 7; c++) {
if (col + c <= -1 || this.moduleCount <= col + c) continue;
const isPattern = 0 <= r && r <= 6 && (c === 0 || c === 6) || 0 <= c && c <= 6 && (r === 0 || r === 6) || 2 <= r && r <= 4 && 2 <= c && c <= 4;
this.modules[row + r][col + c] = isPattern;
}
}
}
getBestMaskPattern() {
let minLostPoint = 0;
let bestPattern = 0;
for (let i = 0; i < 8; i++) {
this.makeImpl(true, i);
const lostPoint = getLostPoint(this);
if (i === 0 || minLostPoint > lostPoint) {
minLostPoint = lostPoint;
bestPattern = i;
}
}
return bestPattern;
}
setupTimingPattern() {
for (let r = 8; r < this.moduleCount - 8; r++) {
if (this.modules[r][6] != null) continue;
this.modules[r][6] = r % 2 === 0;
}
for (let c = 8; c < this.moduleCount - 8; c++) {
if (this.modules[6][c] != null) continue;
this.modules[6][c] = c % 2 === 0;
}
}
setupPositionAdjustPattern() {
const pos = getPatternPosition(this.typeNumber);
pos.forEach(row => {
pos.forEach(col => {
if (this.modules[row][col] != null) return;
for (let r = -2; r <= 2; r++) {
for (let c = -2; c <= 2; c++) {
this.modules[row + r][col + c] = r === -2 || r === 2 || c === -2 || c === 2 || r === 0 && c === 0;
}
}
});
});
}
setupTypeNumber(test) {
const bits = getBCHTypeNumber(this.typeNumber);
for (let i = 0; i < 18; i++) {
const mod = !test && (bits >> i & 1) === 1;
this.modules[Math.floor(i / 3)][i % 3 + this.moduleCount - 8 - 3] = mod;
}
for (let i = 0; i < 18; i++) {
const mod = !test && (bits >> i & 1) === 1;
this.modules[i % 3 + this.moduleCount - 8 - 3][Math.floor(i / 3)] = mod;
}
}
setupTypeInfo(test, maskPattern) {
const data = this.errorCorrectLevel << 3 | maskPattern;
const bits = getBCHTypeInfo(data);
for (let i = 0; i < 15; i++) {
const mod = !test && (bits >> i & 1) === 1;
if (i < 6) {
this.modules[i][8] = mod;
} else if (i < 8) {
this.modules[i + 1][8] = mod;
} else {
this.modules[this.moduleCount - 15 + i][8] = mod;
}
}
for (let i = 0; i < 15; i++) {
const mod = !test && (bits >> i & 1) === 1;
if (i < 8) {
this.modules[8][this.moduleCount - i - 1] = mod;
} else if (i < 9) {
this.modules[8][15 - i - 1 + 1] = mod;
} else {
this.modules[8][15 - i - 1] = mod;
}
}
this.modules[this.moduleCount - 8][8] = !test;
}
mapData(data, maskPattern) {
let inc = -1;
let row = this.moduleCount - 1;
let bitIndex = 7;
let byteIndex = 0;
for (let col = this.moduleCount - 1; col > 0; col -= 2) {
if (col === 6) col--;
while (true) {
for (let c = 0; c < 2; c++) {
if (this.modules[row][col - c] == null) {
const dark = this.getNextBit(data, byteIndex, bitIndex);
const mask = getMask(maskPattern, row, col - c);
this.modules[row][col - c] = mask ? !dark : dark;
bitIndex--;
if (bitIndex === -1) {
byteIndex++;
bitIndex = 7;
}
}
}
row += inc;
if (row < 0 || this.moduleCount <= row) {
row -= inc;
inc = -inc;
break;
}
}
}
}
getNextBit(data, byteIndex, bitIndex) {
return byteIndex < data.length && (data[byteIndex] >>> bitIndex & 1) === 1;
}
}
function generateQRCodeModel(type, errorCorrection, content) {
const qrCodeModel = new QRCodeModelImpl(type, getErrorCorrectionLevelNumber(errorCorrection));
qrCodeModel.addData(content);
qrCodeModel.make();
return qrCodeModel;
}
function getErrorCorrectionLevelNumber(errorCorrectionLevel) {
switch (errorCorrectionLevel) {
case "L":
return 1;
case "M":
return 0;
case "Q":
return 3;
case "H":
return 2;
default:
return 2;
}
}
function getTypeNumber(text, errorCorrectionLevel) {
const length = getUTF8Length(text);
let nType = 1;
for (let i = 0, len = QR_CODE_LIMIT_LENGTH.length; i <= len; i++) {
let nLimit = 0;
switch (errorCorrectionLevel) {
case "L":
nLimit = QR_CODE_LIMIT_LENGTH[i][0];
break;
case "M":
nLimit = QR_CODE_LIMIT_LENGTH[i][1];
break;
case "Q":
nLimit = QR_CODE_LIMIT_LENGTH[i][2];
break;
case "H":
nLimit = QR_CODE_LIMIT_LENGTH[i][3];
break;
}
if (length <= nLimit) {
break;
} else {
nType++;
}
}
if (nType > QR_CODE_LIMIT_LENGTH.length) {
throw new Error("Too long data");
}
return nType;
}
function getUTF8Length(sText) {
let utf8Length = 0;
for (let i = 0; i < sText.length; i++) {
const charCode = sText.charCodeAt(i);
if (charCode < 0x80) {
utf8Length += 1;
} else if (charCode < 0x800) {
utf8Length += 2;
} else if (charCode < 0x10000) {
utf8Length += 3;
} else if (charCode < 0x200000) {
utf8Length += 4;
}
}
return utf8Length;
}
const QR_CODE_LIMIT_LENGTH = [[17, 14, 11, 7], [32, 26, 20, 14], [53, 42, 32, 24], [78, 62, 46, 34], [106, 84, 60, 44], [134, 106, 74, 58], [154, 122, 86, 64], [192, 152, 108, 84], [230, 180, 130, 98], [271, 213, 151, 119], [321, 251, 177, 137], [367, 287, 203, 155], [425, 331, 241, 177], [458, 362, 258, 194], [520, 412, 292, 220], [586, 450, 322, 250], [644, 504, 364, 280], [718, 560, 394, 310], [792, 624, 442, 338], [858, 666, 482, 382], [929, 711, 509, 403], [1003, 779, 565, 439], [1091, 857, 611, 461], [1171, 911, 661, 511], [1273, 997, 715, 535], [1367, 1059, 751, 593], [1465, 1125, 805, 625], [1528, 1190, 868, 658], [1628, 1264, 908, 698], [1732, 1370, 982, 742], [1840, 1452, 1030, 790], [1952, 1538, 1112, 842], [2068, 1628, 1168, 898], [2188, 1722, 1228, 958], [2303, 1809, 1283, 983], [2431, 1911, 1351, 1051], [2563, 1989, 1423, 1093], [2699, 2099, 1499, 1139], [2809, 2213, 1579, 1219], [2953, 2331, 1663, 1273]];
const DEFAULT_QRCODE_OPTIONS = {
size: 256,
colorDark: "#000000",
colorLight: "#ffffff",
correctionLevel: "H"
};
class QRCode {
constructor(content, options) {
this.content = content;
this.options = Object.assign(Object.assign({}, DEFAULT_QRCODE_OPTIONS), options || {});
}
static from(text) {
return new QRCode(text);
}
withOptions(options) {
this.options = Object.assign(Object.assign({}, DEFAULT_QRCODE_OPTIONS), options || {});
return this;
}
renderTo(renderer) {
const typeNumber = this.options.type || getTypeNumber(this.content, this.options.correctionLevel);
const qrCodeModel = generateQRCodeModel(typeNumber, this.options.correctionLevel, this.content);
return renderer.draw(qrCodeModel, this.options);
}
clearFrom(renderer) {
return renderer.clear();
}
}
function HTMLRenderer(element) {
return isCanvasSupported() ? CanvasRenderer(element) : DOMRenderer(element);
}
function CanvasRenderer(element) {
const IMAGE_B64 = "data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==";
let canvasElement = null;
let canvasContext = null;
let imageElement = null;
let isDataURISupported = null;
function _safeSetDataURI(successCallback, errorCallback) {
if (isDataURISupported === null) {
const el = document.createElement("img");
const fOnError = () => {
isDataURISupported = false;
};
const fOnSuccess = () => {
isDataURISupported = true;
if (successCallback) {
successCallback();
}
};
el.onabort = fOnError;
el.onerror = fOnError;
el.onload = fOnSuccess;
el.src = IMAGE_B64;
} else if (isDataURISupported === true && successCallback) {
successCallback();
} else ;
}
function _onMakeImage() {
if (!canvasElement || !imageElement) {
console.warn("[HTMLRenderer][_onMakeImage] Canvas elements have not been initialized properly");
return;
}
imageElement.src = canvasElement.toDataURL("image/png");
imageElement.style.display = "block";
canvasElement.style.display = "none";
}
function clearCanvas() {
if (!canvasElement || !canvasContext) {
console.warn("[HTMLRenderer][clearCanvas] Canvas context has not been initialized properly");
return false;
}
canvasContext.clearRect(0, 0, canvasElement.width, canvasElement.height);
return true;
}
function drawWithCanvas(model, options) {
var _a, _b, _c, _d;
if (!canvasElement) {
canvasElement = document.createElement("canvas");
canvasElement.width = (_a = options.size) !== null && _a !== void 0 ? _a : 0;
canvasElement.height = (_b = options.size) !== null && _b !== void 0 ? _b : 0;
element.appendChild(canvasElement);
}
if (!canvasContext) {
canvasContext = canvasElement.getContext("2d");
}
if (!imageElement) {
imageElement = document.createElement("img");
imageElement.alt = "Scan me!";
imageElement.style.display = "none";
element.appendChild(imageElement);
}
const nCount = model.getModuleCount();
const nWidth = ((_c = options.size) !== null && _c !== void 0 ? _c : 0) / nCount;
const nHeight = ((_d = options.size) !== null && _d !== void 0 ? _d : 0) / nCount;
const nRoundedWidth = Math.round(nWidth);
const nRoundedHeight = Math.round(nHeight);
clearCanvas();
for (let row = 0; row < nCount; row++) {
for (let col = 0; col < nCount; col++) {
const bIsDark = model.isDark(row, col);
const nLeft = col * nWidth;
const nTop = row * nHeight;
canvasContext.strokeStyle = bIsDark ? options.colorDark : options.colorLight;
canvasContext.lineWidth = 1;
canvasContext.fillStyle = bIsDark ? options.colorDark : options.colorLight;
canvasContext.fillRect(nLeft, nTop, nWidth, nHeight);
canvasContext.strokeRect(Math.floor(nLeft) + 0.5, Math.floor(nTop) + 0.5, nRoundedWidth, nRoundedHeight);
canvasContext.strokeRect(Math.ceil(nLeft) - 0.5, Math.ceil(nTop) - 0.5, nRoundedWidth, nRoundedHeight);
}
}
const [isAndroid, androidVersion] = getAndroidPlatformDetails();
if (!isAndroid || androidVersion >= 3) {
_safeSetDataURI(_onMakeImage);
}
return true;
}
return {
draw: (model, options) => {
return drawWithCanvas(model, options);
},
clear() {
return clearCanvas();
}
};
}
function DOMRenderer(element) {
function drawWithDOMElements(model, options) {
const nCount = model.getModuleCount();
const nWidth = Math.floor(options.size / nCount);
const nHeight = Math.floor(options.size / nCount);
const aHTML = ['<table style="border:0;border-collapse:collapse;">'];
for (let row = 0; row < nCount; row++) {
aHTML.push("<tr>");
for (let col = 0; col < nCount; col++) {
aHTML.push('<td style="border:0;border-collapse:collapse;padding:0;margin:0;width:' + nWidth + "px;height:" + nHeight + "px;background-color:" + (model.isDark(row, col) ? options.colorDark : options.colorLight) + ';"></td>');
}
aHTML.push("</tr>");
}
aHTML.push("</table>");
element.innerHTML = aHTML.join("");
const elTable = element.childNodes[0];
const nLeftMarginTable = (options.size - elTable.offsetWidth) / 2;
const nTopMarginTable = (options.size - elTable.offsetHeight) / 2;
if (nLeftMarginTable > 0 && nTopMarginTable > 0) {
elTable.style.margin = nTopMarginTable + "px " + nLeftMarginTable + "px";
}
return true;
}
function clearDOMElements() {
element.innerHTML = "";
return true;
}
return {
draw: drawWithDOMElements,
clear: clearDOMElements
};
}
function isCanvasSupported() {
return typeof CanvasRenderingContext2D != "undefined";
}
function getAndroidPlatformDetails() {
const userAgent = navigator.userAgent;
if (/android/i.test(userAgent)) {
const aMat = userAgent.toString().match(/android ([0-9]\.[0-9])/i);
if (aMat && aMat[1]) {
const version = parseFloat(aMat[1]);
return [!!version, version];
}
return [true, 0];
}
return [false, -1];
}
var QRErrorCorrectLevel;
(function (QRErrorCorrectLevel) {
QRErrorCorrectLevel[QRErrorCorrectLevel["L"] = 1] = "L";
QRErrorCorrectLevel[QRErrorCorrectLevel["M"] = 0] = "M";
QRErrorCorrectLevel[QRErrorCorrectLevel["Q"] = 3] = "Q";
QRErrorCorrectLevel[QRErrorCorrectLevel["H"] = 2] = "H";
})(QRErrorCorrectLevel || (QRErrorCorrectLevel = {}));
({
correctLevel: QRErrorCorrectLevel.H
});
const DEFAULT_CONFIGURATION = {
selector: ".qrcode",
size: 256,
colorDark: "#000000",
colorLight: "#ffffff",
correctionLevel: "H",
configurations: {}
};
const Plugin = () => {
return {
id: "qrcodes",
init: function (deck) {
const deckConfig = deck.getConfig();
const config = Object.assign({}, DEFAULT_CONFIGURATION, deckConfig.qrcodes);
console.info("🔳 QR Codes plugin by ForWarD Software loaded", config);
function renderQRCodes() {
document.querySelectorAll(config.selector).forEach(function (el) {
console.info("🔳 QR Code found as '%s' element:", el.tagName, el);
let elementConfiguration = {
text: el.dataset.text || el.href,
size: el.dataset.size || config.size,
colorDark: el.dataset.colorDark || config.colorDark,
colorLight: el.dataset.colorLight || config.colorLight,
correctionLevel: el.dataset.correctionLevel || config.correctionLevel
};
if (config.configurations[el.id]) {
elementConfiguration = {
...elementConfiguration,
...config.configurations[el.id]
};
}
console.debug("🔳 QR Code generating using configuration:", elementConfiguration);
QRCode.from(elementConfiguration.text).withOptions({
size: elementConfiguration.size,
colorDark: elementConfiguration.colorDark,
colorLight: elementConfiguration.colorLight,
correctionLevel: elementConfiguration.correctionLevel
}).renderTo(HTMLRenderer(el));
});
}
window.addEventListener("DOMContentLoaded", renderQRCodes);
}
};
};
return Plugin;
}));