Make it possible to reload the popup window without initiating a new download

main.go

@@ -55,6 +55,7 @@ func main() {
 	r.HandleFunc("/", homeHandler)
 	r.HandleFunc("/config", configHandler)
 	r.HandleFunc("/fetch", fetchHandler)
+	r.HandleFunc("/fetch/{id}", fetchHandler)
 
 	// info for the list
 	r.HandleFunc("/rest/fetch", fetchInfoRESTHandler)
@@ -241,6 +242,32 @@ func fetchInfoRESTHandler(w http.ResponseWriter, r *http.Request) {
 
 func fetchHandler(w http.ResponseWriter, r *http.Request) {
 
+	// if they refreshed the popup, just load the existing object, don't
+	// create a new one
+	vars := mux.Vars(r)
+	idString := vars["id"]
+
+	idInt, err := strconv.ParseInt(idString, 10, 32)
+	if err == nil && idInt > 0 {
+		for _, dl := range downloads {
+			if dl.Id == int(idInt) {
+				t, err := template.ParseFS(webFS, "web/layout.tmpl", "web/popup.html")
+				if err != nil {
+					panic(err)
+				}
+
+				templateData := map[string]interface{}{"dl": dl, "config": conf}
+
+				err = t.ExecuteTemplate(w, "layout", templateData)
+				if err != nil {
+					panic(err)
+				}
+				return
+			}
+		}
+
+	}
+
 	query := r.URL.Query()
 	url, present := query["url"]
 

web/popup.html

@@ -30,11 +30,11 @@
 {{ define "js" }}
 <script>
     function popup() {
+        history.replaceState(null, '', ['/fetch/{{ .dl.Id }}'])
         return { 
             eta: '', percent: 0.0, state: '??', filename: '', finished: false, log :'',
             profile_chosen: null,
             watch_profile() {
-                console.log('will wtch profile');
                 this.$watch('profile_chosen', value => this.profile_chosen(value))
             },
             update_profile(name) {
@@ -57,6 +57,9 @@
                     this.eta = info.eta;
                     this.percent = info.percent + "%";
                     this.state = info.state;
+                    if (this.state != 'choose profile') {
+                        this.profile_chosen = true;
+                    }
                     this.finished = info.finished;
                     if (info.files && info.files.length > 0) {
                         this.filename = info.files[info.files.length - 1];