vi-canvas-mock/lib/mock/createImageBitmap.js

Mock a canvas in your vitest tests.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _ImageBitmap = _interopRequireDefault(require("../classes/ImageBitmap"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
var _default = vi.fn(function createImageBitmap(img, sx, sy, sWidth, sHeight, options) {
  var length = arguments.length;
  return new Promise((resolve, reject) => {
    if (length === 0) return reject(new TypeError("Failed to execute 'createImageBitmap' on 'Window': 1 argument required, but only 0 present."));
    if (length === 3 || length === 4) return reject(new TypeError("Failed to execute 'createImageBitmap' on 'Window': Valid arities are: [1, 2, 5, 6], but " + length + ' arguments provided.'));
    let validImage = false;
    if (img instanceof HTMLImageElement) validImage = true;
    if (img instanceof HTMLVideoElement) validImage = true;
    if (img instanceof HTMLCanvasElement) validImage = true;
    // checking constructor name is the only reliable way to verify the object's constructing class is "blob-like"
    if (img instanceof Blob || img && img.constructor && img.constructor.name === 'Blob') validImage = true;
    if (img instanceof _ImageBitmap.default) validImage = true;
    if (img instanceof ImageData) validImage = true;
    if (!validImage) return reject(new TypeError("Failed to execute 'createImageBitmap' on 'Window': The provided value is not of type '(HTMLImageElement or SVGImageElement or HTMLVideoElement or HTMLCanvasElement or Blob or ImageData or ImageBitmap or OffscreenCanvas)'"));
    if (length >= 2) {
      let index = 6;
      if (length === 2) {
        index = 2;
        options = sx;
      }
      if (length === 5) options = null;
      if (options !== null && options !== void 0) {
        if (typeof options !== 'object') throw new TypeError("Failed to execute 'createImageBitmap' on 'Window': parameter " + index + " ('options') is not an object.");
      }
    }
    if (length >= 5) {
      sWidth = Number(sWidth);
      sHeight = Number(sHeight);
      if (sWidth === 0 || !Number.isFinite(sWidth)) return reject(new RangeError('The crop rect width is 0.'));
      if (sHeight === 0 || !Number.isFinite(sHeight)) return reject(new RangeError('The crop rect height is 0.'));
      sWidth = Math.abs(sWidth);
      sHeight = Math.abs(sHeight);
    } else {
      sWidth = img.width || 1;
      sHeight = img.height || 1;
    }
    return resolve(new _ImageBitmap.default(sWidth, sHeight));
  });
});
exports.default = _default;