- From: Jimmy Wärting via GitHub <sysbot+gh@w3.org>
- Date: Wed, 12 Aug 2020 09:40:14 +0000
- To: public-webrtc-logs@w3.org
I also notice that firefox has it 🙂 It would be annoying to have to prompt if all content is under your control or have CORS support or isn't a taintet canvas element Otherwise i would be okey with what html2canvas is doing (render those part as a white or transparent placeholder) When i came to think about it... Expanding [createImageBitmap](https://developer.mozilla.org/en-US/docs/Web/API/WindowOrWorkerGlobalScope/createImageBitmap) to accept eg `document` or any `HTMLElement` could be a grate placement for this functionality if done correctly? - don't have to come up with new api's - if only `document` became allowed and not any `HTMLElement`, than you can easily just use `node.getBoundingClientRect()` to clip the area you need. - you can decide for yourself what image format and quality you want - it can be transfered to workers/iframes more easily with postMessage - it can handle alpha (transparent background/iframes)? - it's already promise based 👍 - so we could expand the option to include tainted images in which case it will ask the user for permission (preferable with a preview of the image that have already been taken, but that's up to browser to implement) ```js const imageBitmapPromise = createImageBitmap(document.body, { // setting this to true would cause tainted canvas, cross origin images, // backgrounds and iframes to be included and not painted as white or // transparent placeholders, but it can also cause a prompt to appear. includeTainted: true }) ``` --- durning development and end-to-end testing to see how responsive things are in mobile/desktop would also be a good usecase for this -- GitHub Notification of comment by jimmywarting Please view or discuss this issue at https://github.com/w3c/mediacapture-screen-share/issues/145#issuecomment-672768831 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Wednesday, 12 August 2020 09:40:16 UTC