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# The MathMenu extension

The options below control the operation of the contextual menu that is available on mathematics that is typeset by MathJax. They are listed with their default values. To set any of these options, include a `MathMenu` section in your `MathJax.Hub.Config()` call. For example

    MathJax.Hub.Config({
      MathMenu: {
        delay: 600
      }
    });

would set the `delay` option to 600 milliseconds.

`delay: 150`

  This is the hover delay for the display (in milliseconds) for submenus in the contextual menu: when the mouse is over a submenu label for this long, the menu will appear. (The submenu also will appear if you click on its label.)

`helpURL: "http://www.mathjax.org/help/user/"`

  This is the URL for the MathJax Help menu item. When the user selects that item, the browser opens a new window with this URL.

`showRenderer: true`

  This controls whether the “Math Renderer” item will be displayed in the the “Settings” submenu of the mathematics contextual menu. It allows the user to change between the HTML-CSS and NativeMML output processors for the mathematics on the page. Set to `false` to prevent this menu item from showing.

`showContext: false`

  This controls whether the “Contextual Menu” item will be displayed in the the “Settings” submenu of the mathematics contextual menu. It allows the user to decide whether the MathJax menu or the browser’s default contextual manu will be shown when the context menu click occurs over mathematics typeset by MathJax. (The main reason to allow pass-through to the browser’s menu is to gain access to the MathPlayer contextual menu when the NativeMML output processor is used in Internet Explorer with the MathPlayer plugin.) Set to `false` to prevent this menu item from showing.

`showFontMenu: false`

  This controls whether the “Font Preference” item will be displayed in the the “Settings” submenu of the mathematics contextual menu. This submenu lets the user select what font to use in the mathematics produced by the HTML-CSS output processor. Note that changing the selection in the font menu will cause the page to reload. Set to `false` to prevent this menu item from showing.

`windowSettings: { ... }`

  These are the settings for the `window.open()` call that creates the Show Source window. The initial width and height will be reset after the source is shown in an attempt to make the window fit the output better.

`styles: {}`

  This is a list of CSS declarations for styling the menu components. See the definitions in `extensions/MathMenu.js` for details of what are defined by default. See CSS Style Objects for details on how to specify CSS style in a JavaScript object.

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