@sanity/form-builder/lib/inputs/common/fileTarget/utils/imageUrlToBlob.js

Sanity form builder

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.imageUrlToBlob = imageUrlToBlob;
function imageUrlToBlob(imageUrl) {
  var format = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'image/jpeg';
  var quality = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;
  if (imageUrl.match(/^webkit-fake-url:\/\//)) {
    return Promise.reject(new Error('Cannot read image contents from webkit fake url'));
  }
  return new Promise((resolve, reject) => {
    var loader = new Image();
    loader.crossOrigin = 'anonymous';
    loader.referrerPolicy = 'strict-origin-when-cross-origin';
    loader.onload = () => {
      var canvas = document.createElement('canvas');
      canvas.width = loader.width;
      canvas.height = loader.height;
      var ctx = canvas.getContext('2d');
      ctx.drawImage(loader, 0, 0, canvas.width, canvas.height);
      try {
        canvas.toBlob(resolve, format, quality);
      } catch (error) {
        reject(error);
      }
    };
    loader.src = imageUrl;
  });
}