65 lines
1.2 KiB
Go
65 lines
1.2 KiB
Go
package main
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import (
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"fmt"
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"log"
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"os/exec"
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"time"
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)
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func slideshow(ch <-chan string) {
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dir := <-ch
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ticker := time.NewTicker(time.Duration(config.Duration) * time.Minute)
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//set a flat background color based on config defaults
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fillReady := make(chan bool)
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go func() {
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fillCmd := exec.Command("swaybg", "-c", "#232136")
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err := fillCmd.Start()
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if err != nil {
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fmt.Println("could not set background color", err)
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}
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fmt.Println("bg color set!")
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fillReady <- true
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fillCmd.Wait()
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}()
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var cmd *exec.Cmd
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go func() {
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for {
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<-fillReady
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newCmd := setRandomWallpaper(dir)
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if cmd != nil {
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err := cmd.Process.Kill()
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if err != nil {
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log.Fatal("could not kill process", err)
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}
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}
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cmd = newCmd
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select {
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case dir = <-ch:
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log.Println("directory set!")
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continue
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case <-ticker.C:
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continue
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}
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}
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}()
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}
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func setRandomWallpaper(dir string) *exec.Cmd {
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img, err := pickRandomImage(dir)
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if err != nil {
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panic(err)
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}
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cmd := exec.Command("swaybg", "-i", img, "--mode", "fit")
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fmt.Printf("setting wallpaper: %v\n", img)
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err = cmd.Start()
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if err != nil {
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log.Fatal("failed to set wallpaper!", err)
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}
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go cmd.Wait()
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return cmd
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}
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