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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 “Math Settings” submenu of the MathJax contextual menu. It allows the user to change between the HTML-CSS, NativeMML, and SVG output processors for the mathematics on the page. Set to `false` to prevent this menu item from showing.

`showFontMenu: false`

  This controls whether the “Font Preference” item will be displayed in the “Math Settings” submenu of the MathJax 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.

`showMathPlayer: true`

  This controls whether the “MathPlayer” item will be displayed in the “Math Settings” submenu of the MathJax contextual menu. This submenu lets the user select what events should be passed on to the MathPlayer plugin, when it is present. Mouse events can be passed on (so that clicks will be processed by MathPlayer rather than MathJax), and emnu events can be passed on (to allow the user access to the MathPlayer menu). Set to `false` to prevent this menu item from showing.

`showContext: false`

  This controls whether the “Contextual Menu” item will be displayed in the “Math Settings” submenu of the MathJax contextual menu. It allows the user to decide whether the MathJax menu or the browser’s default contextual menu will be shown when the context menu click occurs over mathematics typeset by MathJax. 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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