loadJSON with callback

javascript/src/Plugins/qfq.fabric.js

@@ -325,19 +325,18 @@ $(function (n) {
 
     n.Fabric.prototype.prepareStaticCanvas = function(width, height) {
         console.log("prepareStaticCanvas");
+        var that = this;
         this.generateStaticCanvas(width, height);
         if (this.fabricJSON) {
-            this.canvas.loadFromJSON(this.fabricJSON);
+            this.canvas.loadFromJSON(this.fabricJSON, function() {
+                    that.canvas.renderAll();
+                    that.resizeCanvas();
+                    that.canvas.renderAll();
+            });
         } else {
             this.setBackground();
+            this.canvas.renderAll();
         }
-        this.canvas.renderAll();
-        var that = this;
-
-        setTimeout(function () {
-            that.resizeCanvas();
-            that.canvas.renderAll();
-        }, 1000);
     };
 
     n.Fabric.prototype.generateStaticCanvas = function(width, height) {