feat(rendering): fixed issue with png rendering, recently introduced by profiler refactoring

public/app/core/profiler.ts

@@ -99,7 +99,9 @@ export class Profiler {
   }
 
   renderingCompleted(panelId, panelTimings) {
-    this.panelsRendered++;
+    // add render counter to root scope
+    // used by phantomjs render.js to know when panel has rendered
+    this.$rootScope.panelsRendered = this.panelsRendered++;
 
     if (this.enabled) {
       panelTimings.renderEnd = new Date().getTime();

vendor/phantomjs/render.js

@@ -36,7 +36,7 @@
     // console.log('Loading a web page: ' + params.url + ' status: ' + status);
 
     function checkIsReady() {
-      var canvas = page.evaluate(function() {
+      var panelsRendered = page.evaluate(function() {
         if (!window.angular) { return false; }
         var body = window.angular.element(document.body);
         if (!body.injector) { return false; }
@@ -44,12 +44,10 @@
 
         var rootScope = body.injector().get('$rootScope');
         if (!rootScope) {return false;}
-        if (!rootScope.performance) { return false; }
-        var panelsToLoad = window.angular.element('div.panel').length;
-        return rootScope.performance.panelsRendered >= panelsToLoad;
+        return rootScope.panelsRendered;
       });
 
-      if (canvas || tries === 1000) {
+      if (panelsRendered || tries === 1000) {
         var bb = page.evaluate(function () {
           return document.getElementsByClassName("main-view")[0].getBoundingClientRect();
         });