detector_gsettings.go RawHistoryFolder

1package colorscheme
2
3import (
4	"os/exec"
5	"strings"
6)
7
8const (
9	detectorNameGsettings = "gsettings"
10	priorityGsettings     = 10
11)
12
13// GsettingsDetector detects color scheme from GNOME gsettings.
14// This is the most reliable method for GNOME-based desktops.
15type GsettingsDetector struct{}
16
17// NewGsettingsDetector creates a new gsettings-based detector.
18func NewGsettingsDetector() *GsettingsDetector {
19	return &GsettingsDetector{}
20}
21
22// Name implements port.ColorSchemeDetector.
23func (*GsettingsDetector) Name() string {
24	return detectorNameGsettings
25}
26
27// Priority implements port.ColorSchemeDetector.
28func (*GsettingsDetector) Priority() int {
29	return priorityGsettings
30}
31
32// Available implements port.ColorSchemeDetector.
33// Returns true if gsettings command is available.
34func (*GsettingsDetector) Available() bool {
35	_, err := exec.LookPath("gsettings")
36	return err == nil
37}
38
39// Detect implements port.ColorSchemeDetector.
40// Queries org.gnome.desktop.interface color-scheme.
41func (*GsettingsDetector) Detect() (prefersDark, ok bool) {
42	cmd := exec.Command("gsettings", "get", "org.gnome.desktop.interface", "color-scheme")
43	output, err := cmd.Output()
44	if err != nil {
45		return false, false
46	}
47
48	// Output is like "'prefer-dark'\n", strip quotes and whitespace
49	result := strings.TrimSpace(string(output))
50	result = strings.Trim(result, "'\"")
51
52	switch result {
53	case "prefer-dark":
54		return true, true
55	case "prefer-light":
56		return false, true
57	case "default":
58		// "default" means follow system, which we can't determine here
59		return false, false
60	default:
61		return false, false
62	}
63}