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frontend/node_modules/@rc-component/qrcode/es/QRCodeCanvas.js

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+import _extends from "@babel/runtime/helpers/esm/extends";
+import _objectSpread from "@babel/runtime/helpers/esm/objectSpread2";
+import _slicedToArray from "@babel/runtime/helpers/esm/slicedToArray";
+import _objectWithoutProperties from "@babel/runtime/helpers/esm/objectWithoutProperties";
+var _excluded = ["value", "size", "level", "bgColor", "fgColor", "includeMargin", "minVersion", "marginSize", "style", "imageSettings", "boostLevel"];
+import React from 'react';
+import { useQRCode } from "./hooks/useQRCode";
+import { DEFAULT_BACKGROUND_COLOR, DEFAULT_FRONT_COLOR, DEFAULT_NEED_MARGIN, DEFAULT_LEVEL, DEFAULT_MINVERSION, DEFAULT_SIZE, isSupportPath2d, excavateModules, generatePath } from "./utils";
+var QRCodeCanvas = /*#__PURE__*/React.forwardRef(function (props, ref) {
+  var value = props.value,
+    _props$size = props.size,
+    size = _props$size === void 0 ? DEFAULT_SIZE : _props$size,
+    _props$level = props.level,
+    level = _props$level === void 0 ? DEFAULT_LEVEL : _props$level,
+    _props$bgColor = props.bgColor,
+    bgColor = _props$bgColor === void 0 ? DEFAULT_BACKGROUND_COLOR : _props$bgColor,
+    _props$fgColor = props.fgColor,
+    fgColor = _props$fgColor === void 0 ? DEFAULT_FRONT_COLOR : _props$fgColor,
+    _props$includeMargin = props.includeMargin,
+    includeMargin = _props$includeMargin === void 0 ? DEFAULT_NEED_MARGIN : _props$includeMargin,
+    _props$minVersion = props.minVersion,
+    minVersion = _props$minVersion === void 0 ? DEFAULT_MINVERSION : _props$minVersion,
+    marginSize = props.marginSize,
+    style = props.style,
+    imageSettings = props.imageSettings,
+    boostLevel = props.boostLevel,
+    otherProps = _objectWithoutProperties(props, _excluded);
+  var imgSrc = imageSettings === null || imageSettings === void 0 ? void 0 : imageSettings.src;
+  var _canvas = React.useRef(null);
+  var _image = React.useRef(null);
+  var setCanvasRef = React.useCallback(function (node) {
+    _canvas.current = node;
+    if (typeof ref === 'function') {
+      ref(node);
+    } else if (ref) {
+      ref.current = node;
+    }
+  }, [ref]);
+  var _React$useState = React.useState(false),
+    _React$useState2 = _slicedToArray(_React$useState, 2),
+    setIsImageLoaded = _React$useState2[1];
+  var _useQRCode = useQRCode({
+      value: value,
+      level: level,
+      minVersion: minVersion,
+      includeMargin: includeMargin,
+      marginSize: marginSize,
+      imageSettings: imageSettings,
+      size: size,
+      boostLevel: boostLevel
+    }),
+    margin = _useQRCode.margin,
+    cells = _useQRCode.cells,
+    numCells = _useQRCode.numCells,
+    calculatedImageSettings = _useQRCode.calculatedImageSettings;
+  React.useEffect(function () {
+    if (_canvas.current) {
+      var canvas = _canvas.current;
+      var ctx = canvas.getContext('2d');
+      if (!ctx) {
+        return;
+      }
+      var cellsToDraw = cells;
+      var image = _image.current;
+      var haveImageToRender = calculatedImageSettings != null && image !== null && image.complete && image.naturalHeight !== 0 && image.naturalWidth !== 0;
+      if (haveImageToRender) {
+        if (calculatedImageSettings.excavation != null) {
+          cellsToDraw = excavateModules(cells, calculatedImageSettings.excavation);
+        }
+      }
+      var pixelRatio = window.devicePixelRatio || 1;
+      canvas.height = canvas.width = size * pixelRatio;
+      var scale = size / numCells * pixelRatio;
+      ctx.scale(scale, scale);
+      ctx.fillStyle = bgColor;
+      ctx.fillRect(0, 0, numCells, numCells);
+      ctx.fillStyle = fgColor;
+      if (isSupportPath2d) {
+        ctx.fill(new Path2D(generatePath(cellsToDraw, margin)));
+      } else {
+        cells.forEach(function (row, rdx) {
+          row.forEach(function (cell, cdx) {
+            if (cell) {
+              ctx.fillRect(cdx + margin, rdx + margin, 1, 1);
+            }
+          });
+        });
+      }
+      if (calculatedImageSettings) {
+        ctx.globalAlpha = calculatedImageSettings.opacity;
+      }
+      if (haveImageToRender) {
+        ctx.drawImage(image, calculatedImageSettings.x + margin, calculatedImageSettings.y + margin, calculatedImageSettings.w, calculatedImageSettings.h);
+      }
+    }
+  });
+  React.useEffect(function () {
+    setIsImageLoaded(false);
+  }, [imgSrc]);
+  var canvasStyle = _objectSpread({
+    height: size,
+    width: size
+  }, style);
+  var img = null;
+  if (imgSrc != null) {
+    img = /*#__PURE__*/React.createElement("img", {
+      alt: "QR-Code",
+      src: imgSrc,
+      key: imgSrc,
+      style: {
+        display: 'none'
+      },
+      onLoad: function onLoad() {
+        setIsImageLoaded(true);
+      },
+      ref: _image
+      // when crossOrigin is not set, the image will be tainted
+      // and the canvas cannot be exported to an image
+      ,
+      crossOrigin: calculatedImageSettings === null || calculatedImageSettings === void 0 ? void 0 : calculatedImageSettings.crossOrigin
+    });
+  }
+  return /*#__PURE__*/React.createElement(React.Fragment, null, /*#__PURE__*/React.createElement("canvas", _extends({
+    style: canvasStyle,
+    height: size,
+    width: size,
+    ref: setCanvasRef,
+    role: "img"
+  }, otherProps)), img);
+});
+if (process.env.NODE_ENV !== 'production') {
+  QRCodeCanvas.displayName = 'QRCodeCanvas';
+}
+export { QRCodeCanvas };