224 DragDropOverlay 拖放遮罩

view := func(c *ui.Context) {
	core.Use(c, core.Settings{})
	images := func(path string) bool { return strings.HasSuffix(path, ".png") }
	r := chat.DragDropOverlay(c, chat.DragDropOverlayOptions{Accept: images}, func() {
		ui.Text(c, "Drag images into the chat")
	})
	for _, path := range r.Accepted() {
		fmt.Println("attach", path)
	}
}
ui.Render(view, 400, 300, 1)