Move createMo() from msqrt to Wrapper, since it is needed for bevelled fractions, and will be needed for mfenced as well.

Author: dpvc

mathjax3-ts/output/chtml/Wrapper.ts

@@ -23,7 +23,7 @@
 
 import {AbstractWrapper} from '../../core/Tree/Wrapper.js';
 import {Node, PropertyList} from '../../core/Tree/Node.js';
-import {MmlNode, TextNode, AbstractMmlNode} from '../../core/MmlTree/MmlNode.js';
+import {MmlNode, TextNode, AbstractMmlNode, AttributeList} from '../../core/MmlTree/MmlNode.js';
 import {Property} from '../../core/Tree/Node.js';
 import {OptionList} from '../../util/Options.js';
 import {unicodeChars} from '../../util/string.js';
@@ -772,6 +772,29 @@ export class CHTMLWrapper<N, T, D> extends AbstractWrapper<MmlNode, CHTMLWrapper
         return (this.node as AbstractMmlNode).factory.create(kind, properties, children);
     }
 
+    /*
+     * Create an mo wrapper with the given text,
+     *   link it in, and give it the right defaults.
+     *
+     * @param{string} text  The text for the wrapped element
+     * @return{CHTMLWrapper}  The wrapped MmlMo node
+     */
+    protected createMo(text: string): CHTMLmo<N, T, D> {
+        const mmlFactory = (this.node as AbstractMmlNode).factory;
+        const textNode = (mmlFactory.create('text') as TextNode).setText(text);
+        const mml = mmlFactory.create('mo', {stretchy: true}, [textNode]);
+        const attributes = this.node.attributes;
+        const display = attributes.get('display') as boolean;
+        const scriptlevel = attributes.get('scriptlevel') as number;
+        const defaults: AttributeList = {
+            mathsize: ['math', attributes.get('mathsize')]
+        };
+        mml.setInheritedAttributes(defaults, display, scriptlevel, false);
+        const node = this.wrap(mml) as CHTMLmo<N, T, D>;
+        node.parent = this;
+        return node;
+    }
+
 }
 
 /*

mathjax3-ts/output/chtml/Wrappers/msqrt.ts

@@ -26,7 +26,7 @@ import {CHTMLWrapperFactory} from '../WrapperFactory.js';
 import {CHTMLmo} from './mo.js';
 import {BBox} from '../BBox.js';
 import {MmlMsqrt} from '../../../core/MmlTree/MmlNodes/msqrt.js';
-import {MmlNode, AbstractMmlNode, TextNode, AttributeList} from '../../../core/MmlTree/MmlNode.js';
+import {MmlNode, AbstractMmlNode, TextNode} from '../../../core/MmlTree/MmlNode.js';
 import {StyleList} from '../CssStyles.js';
 import {DIRECTION} from '../FontData.js';
 
@@ -106,25 +106,10 @@ export class CHTMLmsqrt<N, T, D> extends CHTMLWrapper<N, T, D> {
     }
 
     /*
-     * Create an mo wrapper with the given text,
-     *   link it in, and give it the right defaults.
-     *
-     * @param{string} text  The text for the wrapped element
-     * @return{CHTMLWrapper}  The wrapped MmlMo node
+     * @override
      */
     protected createMo(text: string) {
-        const mmlFactory = (this.node as AbstractMmlNode).factory;
-        const textNode = (mmlFactory.create('text') as TextNode).setText(text);
-        const mml = mmlFactory.create('mo', {stretchy: true}, [textNode]);
-        const attributes = this.node.attributes;
-        const display = attributes.get('display') as boolean;
-        const scriptlevel = attributes.get('scriptlevel') as number;
-        const defaults: AttributeList = {
-            mathsize: ['math', attributes.get('mathsize')]
-        };
-        mml.setInheritedAttributes(defaults, display, scriptlevel, false);
-        const node = this.wrap(mml) as CHTMLmo<N, T, D>;
-        node.parent = this;
+        const node = super.createMo(text);
         this.childNodes.push(node);
         return node;
     }