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Improve HTMLCanvasElement and OffscreenCanvas types #52851

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Improve HTMLCanvasElement and OffscreenCanvas types #52851

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8 changes: 7 additions & 1 deletion lib/lib.dom.d.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -6335,7 +6335,7 @@ interface HTMLCanvasElement extends HTMLElement {
getContext(contextId: "bitmaprenderer", options?: ImageBitmapRenderingContextSettings): ImageBitmapRenderingContext | null;
getContext(contextId: "webgl", options?: WebGLContextAttributes): WebGLRenderingContext | null;
getContext(contextId: "webgl2", options?: WebGLContextAttributes): WebGL2RenderingContext | null;
getContext(contextId: string, options?: any): RenderingContext | null;
getContext(contextId: RenderingContextId, options?: any): RenderingContext | null;
toBlob(callback: BlobCallback, type?: string, quality?: any): void;
/**
* Returns the content of the current canvas as an image that you can use as a source for another canvas or an HTML element.
Expand Down Expand Up @@ -10408,7 +10408,12 @@ interface OffscreenCanvas extends EventTarget {
*
* Returns null if the canvas has already been initialized with another context type (e.g., trying to get a "2d" context after getting a "webgl" context).
*/
getContext(contextId: "2d", options?: CanvasRenderingContext2DSettings): CanvasRenderingContext2D | null;
getContext(contextId: "bitmaprenderer", options?: ImageBitmapRenderingContextSettings): ImageBitmapRenderingContext | null;
getContext(contextId: "webgl", options?: WebGLContextAttributes): WebGLRenderingContext | null;
getContext(contextId: "webgl2", options?: WebGLContextAttributes): WebGL2RenderingContext | null;
getContext(contextId: OffscreenRenderingContextId, options?: any): OffscreenRenderingContext | null;
convertToBlob(options: { type?: string; quality?: number; }): Promise<Blob>;
/** Returns a newly created ImageBitmap object with the image in the OffscreenCanvas object. The image in the OffscreenCanvas object is replaced with a new blank image. */
transferToImageBitmap(): ImageBitmap;
addEventListener<K extends keyof OffscreenCanvasEventMap>(type: K, listener: (this: OffscreenCanvas, ev: OffscreenCanvasEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
Expand Down Expand Up @@ -18441,6 +18446,7 @@ type PremultiplyAlpha = "default" | "none" | "premultiply";
type PresentationStyle = "attachment" | "inline" | "unspecified";
type PublicKeyCredentialType = "public-key";
type PushEncryptionKeyName = "auth" | "p256dh";
type RenderingContextId = "2d" | "bitmaprenderer" | "webgl" | "webgl2" | "webgpu";
type RTCBundlePolicy = "balanced" | "max-bundle" | "max-compat";
type RTCDataChannelState = "closed" | "closing" | "connecting" | "open";
type RTCDegradationPreference = "balanced" | "maintain-framerate" | "maintain-resolution";
Expand Down