init plugin progress check on reload

public/index.html

@@ -88,8 +88,8 @@
         </div>
       </div>
       <div id="importer_bar" class="row">
-        <div class="importer" v-on:click="run_importer('flickr')">Import Flickr <span><span> {{ importers['flickr']['status'] }} </span>-</span><span v-if="importers['flickr']['status'] == 'running'"> {{ importers['flickr']['progress'] }}</span></span></div>
-        <div class="importer" v-on:click="run_importer('dropbox')">Import Dropbox <span><span> {{ importers['dropbox']['status'] }} </span>-<span v-if="importers['dropbox']['status'] == 'running'"> {{ importers['dropbox']['progress'] }} </span></span></div>
+        <div class="importer" v-on:click="run_importer('flickr')">Import Flickr <span><span> {{ importers['flickr']['status'] }} </span></span><span v-if="importers['flickr']['status'] == 'started' || !!importers['flickr']['progress']"> - {{ importers['flickr']['progress'] }}</span></span></div>
+        <div class="importer" v-on:click="run_importer('dropbox')">Import Dropbox <span><span> {{ importers['dropbox']['status'] }} </span>-<span v-if="importers['dropbox']['status'] == 'started' || !!importers['dropbox']['progress']"> - {{ importers['dropbox']['progress'] }} </span></span></div>
       </div>
       <div id="stage" class="row">
         <div id="stage_bar" v-if="items.length > 0">

public/js/app.js

@@ -357,7 +357,10 @@ var app = new Vue({
                     for (let p of ['flickr', 'dropbox']) {
                         console.log(p);
                         if (run.pluginName.toLowerCase().indexOf(p) !== -1) {
-                            self.importers[p]['status'] = run.status;
+                            // init progress listener if it is a fresh start or reload
+                            if (run.status != self.importers[p][status] && run.status == "started")
+                                self.importers[p]['status'] = run.status;
+                                self.check_plugin_progress(id);
                             self.importers[p]['progress'] = run.progress;
                         }
                     }
@@ -401,13 +404,13 @@ var app = new Vue({
             this.notify = `Started plugin ${pluginName}`;
             this.importers[pluginName]['status'] = 'starting';
             this.delay_hide_messages();
-            this.check_plugin_progress(id, pluginName);
+            this.check_plugin_progress(id);
         },
         check_plugin_progress: function(id) {
             var authenticated = false;
             var authenticating = false;
             var self = this;
-            interval = setInterval(function() {
+            var interval = setInterval(function() {
                 self.client.get(id).then(function(response) {
                     console.log(`Run ${response.status}: ${JSON.stringify(response)}`);
                     let pluginName = response.pluginName.indexOf('dropbox') != -1? 'dropbox': 'flickr';