gopaper/slideshow.go

package main

import (
	"fmt"
	"log"
	"time"

	"github.com/reujab/wallpaper"
)

func slideshow(ch <-chan string) {
	dir := <-ch
	ticker := time.NewTicker(time.Duration(config.Duration) * time.Second)
	go func() {
		for {
			img, err := pickRandomImage(dir)
			if err != nil {
				panic(err)
			}
			fmt.Printf("setting wallpaper: %v\n", img)
			err = wallpaper.SetFromFile(img)
			if err != nil {
				log.Fatal("failed to set wallpaper!", err)
			}
			select {
			case dir = <-ch:
				log.Println("directory set!")
				continue
			case <-ticker.C:
				continue
			}
		}
	}()
}