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Support setting the wallpaper via a running swww daemon #27

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Support setting the wallpaper via a running swww daemon #27

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23 changes: 19 additions & 4 deletions linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
package wallpaper

import (
"os"
"os/exec"
"os/user"
"path/filepath"
Expand Down Expand Up @@ -53,10 +54,24 @@ func SetFromFile(file string) error {
case "Deepin":
return exec.Command("dconf", "write", "/com/deepin/wrap/gnome/desktop/background/picture-uri", strconv.Quote("file://"+file)).Run()
default:
err := exec.Command("swaybg", "-i", file).Start()
// if the command completed successfully, return
if err == nil {
return nil
// Make sure we're on wayland at all, otherwise fall back to feh
if os.Getenv("WAYLAND_DISPLAY") != "" {

// Search for existing swww sockets which might indicate the user prefers it to swaybg
swwSock := os.Getenv("XDG_RUNTIME_DIR") + "/swww-" + os.Getenv("WAYLAND_DISPLAY") + ".socket"

if _, err := os.Stat(swwSock); err == nil {
err := exec.Command("swww", "img", file).Start()
if err == nil {
return nil
}
}

err := exec.Command("swaybg", "-i", file).Start()
// if the command completed successfully, return
if err == nil {
return nil
}
}

return exec.Command("feh", "-bg-fill", file).Run()
Expand Down