Copy image to clipboard buffer #5424

emilk · 2024-12-03T08:15:39Z

I would like to be able to get an epaint::ColorImage into the system clipboard, both on native and web, via egui and eframe.

Implementation

Currently what is being copied is stored in PlatformOutput::copied_text.

The simple/hacky solution would be to simply add a copied_image: Option<ColorImage> to PlatformOutput.

A nicer solution is to deprecate copied_text and open_url and replace them with something like commands: Vec<OutputCommand> with

enum OutputCommand {
	CopyText(String),
	CopyImage(ColorImage),
	OpenUrl(OpenUrl)
}

On native we can use arboard::Clipboard.

On web we can use the Clipboard API:

const item = new ClipboardItem({ "image/png": png_blob });
await navigator.clipboard.write([item]);