Adjust code in mj postprocessing

Author: linev

modules/base/ObjectPainter.mjs

@@ -1044,9 +1044,9 @@ class ObjectPainter extends BasePainter {
       }
 
       all_args.forEach(arg => {
-         if (arg.mj_node && arg.applyAttributesToMathJax) {
+         if (arg.mj_node && arg.mj_func) {
             const svg = arg.mj_node.select('svg'); // MathJax svg
-            arg.applyAttributesToMathJax(this, arg.mj_node, svg, arg, font_size, f);
+            arg.mj_func(this, arg.mj_node, svg, arg, font_size, f);
             delete arg.mj_node; // remove reference
             only_text = false;
          } else if (arg.txt_g)

modules/base/latex.mjs

@@ -1440,7 +1440,7 @@ function applyAttributesToMathJax(painter, mj_node, svg, arg, font_size, svg_fac
 
    if (isNodeJs()) {
       // workaround for NaN in viewBox produced by MathJax
-      let vb = svg.attr('viewBox');
+      const vb = svg.attr('viewBox');
       if (isStr(vb) && vb.indexOf('NaN') > 0)
          svg.attr('viewBox', vb.replaceAll('NaN', '600'));
       // console.log('Problematic viewBox', vb, svg.select('text').node()?.innerHTML);
@@ -1490,8 +1490,6 @@ function applyAttributesToMathJax(painter, mj_node, svg, arg, font_size, svg_fac
    if (arg.rotate)
       trans += `${trans?' ':''}rotate(${arg.rotate})`;
 
-
-
    mj_node.attr('transform', trans || null).attr('visibility', null);
 }
 
@@ -1511,7 +1509,7 @@ async function produceMathjax(painter, mj_node, arg) {
 
               repairMathJaxSvgSize(painter, mj_node, svg, arg);
 
-              arg.applyAttributesToMathJax = applyAttributesToMathJax;
+              arg.mj_func = applyAttributesToMathJax;
               return true;
            });
 }