Allow extension widget to specify title-url

docs/extensions.md

@@ -26,6 +26,9 @@ If you know how to setup an HTTP server and a bit of HTML and CSS you're ready t
 ### `Widget-Title`
 Used to specify the title of the widget. If not provided, the widget's title will be "Extension".
 
+### `Widget-Title-URL`
+Used to specify the URL that will be opened when the widget's title is clicked. If the user has specified a `title-url` in their config, it will take precedence over this header.
+
 ### `Widget-Content-Type`
 Used to specify the content type that will be returned by the extension. If not provided, the content will be shown as plain text.
 

internal/glance/widget-extension.go

@@ -59,6 +59,10 @@ func (widget *extensionWidget) update(ctx context.Context) {
 		widget.Title = extension.Title
 	}
 
+	if widget.TitleURL == "" && extension.TitleURL != "" {
+		widget.TitleURL = extension.TitleURL
+	}
+
 	widget.cachedHTML = widget.renderTemplate(widget, extensionWidgetTemplate)
 }
 
@@ -69,8 +73,8 @@ func (widget *extensionWidget) Render() template.HTML {
 type extensionType int
 
 const (
-	extensionContentHTML    extensionType = iota
-	extensionContentUnknown               = iota
+	extensionContentHTML extensionType = iota
+	extensionContentUnknown
 )
 
 var extensionStringToType = map[string]extensionType{
@@ -79,6 +83,7 @@ var extensionStringToType = map[string]extensionType{
 
 const (
 	extensionHeaderTitle            = "Widget-Title"
+	extensionHeaderTitleURL         = "Widget-Title-URL"
 	extensionHeaderContentType      = "Widget-Content-Type"
 	extensionHeaderContentFrameless = "Widget-Content-Frameless"
 )
@@ -93,6 +98,7 @@ type extensionRequestOptions struct {
 
 type extension struct {
 	Title     string
+	TitleURL  string
 	Content   template.HTML
 	Frameless bool
 }
@@ -142,6 +148,10 @@ func fetchExtension(options extensionRequestOptions) (extension, error) {
 		extension.Title = response.Header.Get(extensionHeaderTitle)
 	}
 
+	if response.Header.Get(extensionHeaderTitleURL) != "" {
+		extension.TitleURL = response.Header.Get(extensionHeaderTitleURL)
+	}
+
 	contentType, ok := extensionStringToType[response.Header.Get(extensionHeaderContentType)]
 
 	if !ok {