[css-houdini-drafts] [css-paint-api] drawImage() throws error when url() is passed. Why are ImageBitmap, OffscreenCanvas (#969)

• From: guest271314 via GitHub <sysbot+gh@w3.org>
• Date: Sun, 27 Oct 2019 15:35:46 +0000
• To: public-houdini-archive@w3.org
• Message-ID: <issues.opened-512981940-1572190545-sysbot+gh@w3.org>

guest271314 has just created a new issue for https://github.com/w3c/css-houdini-drafts:

== [css-paint-api] drawImage() throws error when url() is passed. Why are ImageBitmap, OffscreenCanvas ==
The `PaintWorklet` specification claims that `[drawImage()](https://drafts.css-houdini.org/css-paint-api-1/#example-2)` is possible. 

However a `TypeError` is thrown when passing `url()` ([CSSImageValue](https://drafts.css-houdini.org/css-typed-om-1/#imagevalue-objects)) function to `drawImage()` (https://github.com/w3c/css-houdini-drafts/issues/877#issuecomment-487727155)

`TypeError: Failed to execute 'drawImage' on 'PaintRenderingContext2D': The provided value is not of type '(CSSImageValue or HTMLImageElement or SVGImageElement or HTMLVideoElement or HTMLCanvasElement or ImageBitmap or OffscreenCanvas)'`

1. Is `PaintRenderingContext2D.drawImage()` broken?
2. Why are `ImageBitmap` and `OffscreenCanvas` not defined at `PaintWorkletGlobalScope`?



Please view or discuss this issue at https://github.com/w3c/css-houdini-drafts/issues/969 using your GitHub account

Received on Sunday, 27 October 2019 15:35:48 UTC