Initial commit: Stream Deck daemon with web UI

- Web-based key editor (Alpine.js SPA) - Actions: shell commands, scripts, built-in media/volume/brightness, page switching - Keyboard shortcut action (wtype/xdotool) - On-device display with periodic command output - Auto page switching (Hyprland, Sway, Niri, GNOME, KDE, X11) - Screensaver with idle detection - Config hot-reload - Multi-device support
2026-06-16 22:35:14 +07:00
commit 10250b776d
29 changed files with 8208 additions and 0 deletions
@@ -0,0 +1,138 @@
+package main
+
+import (
+	"fmt"
+	"image"
+	"image/color"
+	"strings"
+
+	"golang.org/x/image/font"
+	"golang.org/x/image/font/opentype"
+	"golang.org/x/image/math/fixed"
+)
+
+func parseFAIcon(ref string) (faStyle, string, error) {
+	if !strings.HasPrefix(ref, "fa") {
+		return 0, "", fmt.Errorf("not a font awesome ref")
+	}
+
+	var style faStyle
+	var name string
+
+	switch {
+	case strings.HasPrefix(ref, "fab:"):
+		style = faBrands
+		name = strings.TrimPrefix(ref, "fab:")
+	case strings.HasPrefix(ref, "far:"):
+		style = faRegular
+		name = strings.TrimPrefix(ref, "far:")
+	case strings.HasPrefix(ref, "fa:"):
+		style = faSolid
+		name = strings.TrimPrefix(ref, "fa:")
+	default:
+		return 0, "", fmt.Errorf("invalid font awesome ref: %s", ref)
+	}
+
+	if name == "" {
+		return 0, "", fmt.Errorf("empty icon name")
+	}
+
+	return style, name, nil
+}
+
+func faCodepoint(style faStyle, name string) (rune, error) {
+	m, ok := faCodepoints[style]
+	if !ok {
+		return 0, fmt.Errorf("unknown style")
+	}
+
+	if cp, ok := m[name]; ok {
+		return cp, nil
+	}
+
+	if cp, ok := m[normalizeFAName(name)]; ok {
+		return cp, nil
+	}
+
+	return 0, fmt.Errorf("icon %q not found", name)
+}
+
+func normalizeFAName(name string) string {
+	if len(name) == 0 {
+		return name
+	}
+	parts := strings.Split(name, "-")
+	for i, p := range parts {
+		if len(p) > 0 {
+			parts[i] = strings.ToUpper(p[:1]) + p[1:]
+		}
+	}
+	camel := strings.Join(parts, "")
+	return strings.ToLower(camel[:1]) + camel[1:]
+}
+
+func faFontBytes(style faStyle) ([]byte, error) {
+	return faFonts.ReadFile(style.otfPath())
+}
+
+func loadFAFace(style faStyle, pointSize float64) (font.Face, error) {
+	data, err := faFontBytes(style)
+	if err != nil {
+		return nil, fmt.Errorf("read font: %w", err)
+	}
+
+	fnt, err := opentype.Parse(data)
+	if err != nil {
+		return nil, fmt.Errorf("parse font: %w", err)
+	}
+
+	face, err := opentype.NewFace(fnt, &opentype.FaceOptions{
+		Size:    pointSize,
+		DPI:     72,
+		Hinting: font.HintingFull,
+	})
+	if err != nil {
+		return nil, fmt.Errorf("new face: %w", err)
+	}
+	return face, nil
+}
+
+func renderFAGlyph(style faStyle, name string, size int, scale float64) (image.Image, error) {
+	cp, err := faCodepoint(style, name)
+	if err != nil {
+		return nil, err
+	}
+
+	if scale <= 0 {
+		scale = 0.55
+	}
+	fontSize := float64(size) * scale
+	face, err := loadFAFace(style, fontSize)
+	if err != nil {
+		return nil, err
+	}
+	defer face.Close()
+
+	rgba := image.NewRGBA(image.Rect(0, 0, size, size))
+
+	offX := (size - int(fontSize)) / 2
+	if offX < 0 {
+		offX = size / 8
+	}
+	baselineY := size * 7 / 10
+
+	d := font.Drawer{
+		Dst:  rgba,
+		Src:  image.NewUniform(color.White),
+		Face: face,
+		Dot:  fixed.P(offX, baselineY),
+	}
+	d.DrawString(string(cp))
+
+	return rgba, nil
+}
+
+func isFAIconRef(path string) bool {
+	return strings.HasPrefix(path, "fa:") || strings.HasPrefix(path, "far:") || strings.HasPrefix(path, "fab:")
+}
+