thumbkit

Overview ¶

Package thumbkit helps an app draw thumbnails (filex 0.50 and later): the answer's encoding, and a card of lines in the look filex's own archive and text thumbnails have - what an app that lists a file's contents (an archive kind filex does not read, a package, a playlist) wants to draw.

pluginkit.Run(&pluginkit.Plugin{
	Manifest:  manifest,
	Thumbnail: func(in *wire.ThumbnailInput) (*wire.ThumbnailOutput, error) {
		src, err := pluginkit.ThumbnailSource(in)
		if err != nil {
			return nil, err
		}
		defer src.Close()
		names, err := listMyFormat(src)
		if err != nil {
			return nil, err // filex asks the next handler
		}
		return thumbkit.PNG(thumbkit.ListCard("MYFMT · 12 files", names, 0))
	},
})

It is plain Go (image, image/png and the 7x13 bitmap face of golang.org/x/image), so it works the same off-wasm, in a test.