minimal merge

Author: linev

scripts/JSRootPainter.more.js

@@ -3171,7 +3171,7 @@
                   this.DrawNextFunction.bind(this, indx+1, callback));
    }
 
-   TMultiGraphPainter.prototype.DrawNextGraph = function(indx, opt, subp) {
+   TMultiGraphPainter.prototype.DrawNextGraph = function(indx, opt, subp, used_timeout) {
       if (subp) this.painters.push(subp);
 
       var graphs = this.GetObject().fGraphs;
@@ -3182,6 +3182,10 @@
          return this.DrawNextFunction(0, this.DrawingReady.bind(this));
       }
 
+      // when too many graphs are drawn, avoid deep stack with timeout
+      if ((indx % 500 === 499) && !used_timeout)
+         return setTimeout(this.DrawNextGraph.bind(this,indx,opt,null,true),0);
+
       // if there is auto colors assignment, try to provide it
       if (this._pfc || this._plc || this._pmc) {
          if (!this.pallette && JSROOT.Painter.GetColorPalette)