Add Dashboard Icons prefix support

- defined new type IconSource and constants, presently supporting:
  - LocalFile
  - SimpleIcon
  - DashboardIcon
- added new field to bookmarks and monitors to hold IconSource
- adjusted IsSimpleIcon to get truthiness from IconSource field
- generalised `toSimpleIconIfPrefixed` into `toRemoteResourceIconIfPrefixed`,
  adding support for `walkxcode`'s dashboard icons via CDN (svg)

internal/widget/bookmarks.go

@@ -17,6 +17,7 @@ type Bookmarks struct {
 			URL          string     `yaml:"url"`
 			Icon         string     `yaml:"icon"`
 			IsSimpleIcon bool       `yaml:"-"`
+			IconSource   IconSource `yaml:"-"`
 			SameTab      bool       `yaml:"same-tab"`
 			HideArrow    bool       `yaml:"hide-arrow"`
 		} `yaml:"links"`
@@ -33,7 +34,8 @@ func (widget *Bookmarks) Initialize() error {
 			}
 
 			link := &widget.Groups[g].Links[l]
-			link.Icon, link.IsSimpleIcon = toSimpleIconIfPrefixed(link.Icon)
+			link.Icon, link.IconSource = toRemoteResourceIconIfPrefixed(link.Icon)
+			link.IsSimpleIcon = link.IconSource == SimpleIcon
 		}
 	}
 

internal/widget/fields.go

@@ -27,6 +27,14 @@ type HSLColorField struct {
 	Lightness  uint8
 }
 
+type IconSource uint8
+
+const (
+	LocalFile IconSource = iota
+	SimpleIcon
+	DashboardIcon
+)
+
 func (c *HSLColorField) String() string {
 	return fmt.Sprintf("hsl(%d, %d%%, %d%%)", c.Hue, c.Saturation, c.Lightness)
 }
@@ -156,13 +164,24 @@ func (f *OptionalEnvString) String() string {
 	return string(*f)
 }
 
-func toSimpleIconIfPrefixed(icon string) (string, bool) {
+func toRemoteResourceIconIfPrefixed(icon string) (string, IconSource) {
-	if !strings.HasPrefix(icon, "si:") {
+	var prefix, iconstr string
-		return icon, false
+
+	prefix, iconstr, found := strings.Cut(icon, ":")
+
+	if !found {
+		return icon, LocalFile
 	}
 
-	icon = strings.TrimPrefix(icon, "si:")
+	if prefix == "si" {
-	icon = "https://cdnjs.cloudflare.com/ajax/libs/simple-icons/11.14.0/" + icon + ".svg"
+		icon = "https://cdnjs.cloudflare.com/ajax/libs/simple-icons/11.14.0/" + iconstr + ".svg"
+		return icon, SimpleIcon
+	}
 
-	return icon, true
+	if prefix == "di" {
+		icon = "https://cdn.jsdelivr.net/gh/walkxcode/dashboard-icons@master/svg/" + iconstr + ".svg"
+		return icon, DashboardIcon
+	}
+
+	return icon, LocalFile
 }

internal/widget/monitor.go

@@ -49,6 +49,7 @@ type Monitor struct {
 		Title                   string           `yaml:"title"`
 		IconUrl                 string           `yaml:"icon"`
 		IsSimpleIcon            bool             `yaml:"-"`
+		IconSource              IconSource       `yaml:"-"`
 		SameTab                 bool             `yaml:"same-tab"`
 		StatusText              string           `yaml:"-"`
 		StatusStyle             string           `yaml:"-"`
@@ -61,7 +62,8 @@ func (widget *Monitor) Initialize() error {
 	widget.withTitle("Monitor").withCacheDuration(5 * time.Minute)
 
 	for i := range widget.Sites {
-		widget.Sites[i].IconUrl, widget.Sites[i].IsSimpleIcon = toSimpleIconIfPrefixed(widget.Sites[i].IconUrl)
+		widget.Sites[i].IconUrl, widget.Sites[i].IconSource = toRemoteResourceIconIfPrefixed(widget.Sites[i].IconUrl)
+		widget.Sites[i].IsSimpleIcon = widget.Sites[i].IconSource == SimpleIcon
 	}
 
 	return nil