Contextual Menu Options

The ui/menu component implements the contextual menu that you get when you right-click (or control-click) on a typeset expression. The settings in the menu are “sticky”, which means that they are saved from page to page and session to session (though they web-site specific, so each web site has its own saved settings).

As a page author, you can alter the default settings of the menu by using the menuOptions block of the options section of your MathJax configuration, as described below.

The ui/menu component adds a render action called addMenu that attaches the menu event handlers to the typeset output. (It also adds a second render action called checkLoading that mediates the loading of extensions needed by the contextual menu. For example, when the assistive a11y/explorer component is first activated, MathJax may need to load the a11y/explorer component; this render action makes sure that has happened before any math is typeset.)

If you want to disable the contextual menu, you can override the addMenu render action:

MathJax = {
  options: {
    renderActions: {
      addMenu: [0, '', '']
    }
  }
};

---

The Configuration Block

MathJax = {
  options: {
    menuOptions: {
      settings: {
        texHints: true,        // put TeX-related attributes on MathML
        semantics: false,      // put original format in <semantic> tag in MathML
        zoom: 'NoZoom',        // or 'Click' or 'DoubleClick' as zoom trigger
        zscale: '200%',        // zoom scaling factor
        renderer: 'CHTML',     // or 'SVG'
        alt: false,            // true if ALT required for zooming
        cmd: false,            // true if CMD required for zooming
        ctrl: false,           // true if CTRL required for zooming
        shift: false,          // true if SHIFT required for zooming
        scale: 1,              // scaling factor for all math
        collapsible: false,    // true if complex math should be collapsible
        inTabOrder: true,      // true if tabbing includes math
      },
      annotationTypes: {
        TeX: ['TeX', 'LaTeX', 'application/x-tex'],
        StarMath: ['StarMath 5.0'],
        Maple: ['Maple'],
        ContentMathML: ['MathML-Content', 'application/mathml-content+xml'],
        OpenMath: ['OpenMath']
      }
    }
  }
};

---

Option Descriptions

settings: {...}

These settings give the default menu settings for the page, though a user can change them using the menu. These are described in the comments in the example above.

annotationTypes: {...}

These are the settings for the “Annotation” submenu of the “Show Math As” menu. If the <math> root element has a <semantics> child that contains one of the specified annotation formats, the source will be available via the “Show Math As” and “Copy to Clipboard” menus. Each format has a list of possible encodings. For example, the line

TeX: ['TeX', 'LaTeX', 'application/x-tex']

maps an annotation with an encoding of TeX, LaTeX, or application/x-tex to the “TeX” entry in the “Annotation” sub-menus.

---

Developer Options

MathJax = {
  options: {
    MenuClass: Menu,
    menuOptions: {
      jax: {
        CHTML: null,
        SVG: null
      }
    }
  }
};

menuClass:  Menu

The Menu object class to use for creating the menu. This allows you to create a subclass of Menu and pass that to the document in pace of the default one.

jax: {CHTML: null, SVG: null}

This lists the output jax instances to be used for the different output formats. These will get set up automatically by the menu code if you don’t specify one, so it is only necessary to set these if you want to manage the options specially.

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