File size: 2,246 Bytes
aeb174c | 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 | import { GlobalRegistrator } from "@happy-dom/global-registrator"
GlobalRegistrator.register()
const originalGetContext = HTMLCanvasElement.prototype.getContext
// @ts-expect-error - we're overriding with a simplified mock
HTMLCanvasElement.prototype.getContext = function (contextType: string, _options?: unknown) {
if (contextType === "2d") {
return {
canvas: this,
fillStyle: "#000000",
strokeStyle: "#000000",
font: "12px monospace",
textAlign: "start",
textBaseline: "alphabetic",
globalAlpha: 1,
globalCompositeOperation: "source-over",
imageSmoothingEnabled: true,
lineWidth: 1,
lineCap: "butt",
lineJoin: "miter",
miterLimit: 10,
shadowBlur: 0,
shadowColor: "rgba(0, 0, 0, 0)",
shadowOffsetX: 0,
shadowOffsetY: 0,
fillRect: () => {},
strokeRect: () => {},
clearRect: () => {},
fillText: () => {},
strokeText: () => {},
measureText: (text: string) => ({ width: text.length * 8 }),
drawImage: () => {},
save: () => {},
restore: () => {},
scale: () => {},
rotate: () => {},
translate: () => {},
transform: () => {},
setTransform: () => {},
resetTransform: () => {},
createLinearGradient: () => ({ addColorStop: () => {} }),
createRadialGradient: () => ({ addColorStop: () => {} }),
createPattern: () => null,
beginPath: () => {},
closePath: () => {},
moveTo: () => {},
lineTo: () => {},
bezierCurveTo: () => {},
quadraticCurveTo: () => {},
arc: () => {},
arcTo: () => {},
ellipse: () => {},
rect: () => {},
fill: () => {},
stroke: () => {},
clip: () => {},
isPointInPath: () => false,
isPointInStroke: () => false,
getTransform: () => ({}),
getImageData: () => ({
data: new Uint8ClampedArray(0),
width: 0,
height: 0,
}),
putImageData: () => {},
createImageData: () => ({
data: new Uint8ClampedArray(0),
width: 0,
height: 0,
}),
} as unknown as CanvasRenderingContext2D
}
return originalGetContext.call(this, contextType as "2d", _options)
}
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