electron/docs/api/menu-item.md

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## Class: MenuItem
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> Add items to native application menus and context menus.
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Process: [Main](../glossary.md#main-process)
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See [`Menu`](menu.md) for examples.
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### `new MenuItem(options)`
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* `options` Object
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* `click` Function (optional) - Will be called with
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`click(menuItem, browserWindow, event)` when the menu item is clicked.
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* `menuItem` MenuItem
* `browserWindow` [BrowserWindow](browser-window.md)
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* `event` Event
* `role` String (optional) - Can be `undo`, `redo`, `cut`, `copy`, `paste`, `pasteandmatchstyle`, `delete`, `selectall`, `reload`, `forcereload`, `toggledevtools`, `resetzoom`, `zoomin`, `zoomout`, `togglefullscreen`, `window`, `minimize`, `close`, `help`, `about`, `services`, `hide`, `hideothers`, `unhide`, `quit`, `startspeaking`, `stopspeaking`, `close`, `minimize`, `zoom`, `front`, `appMenu`, `fileMenu`, `editMenu`, `viewMenu` or `windowMenu` - Define the action of the menu item, when specified the
`click` property will be ignored. See [roles](#roles).
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* `type` String (optional) - Can be `normal`, `separator`, `submenu`, `checkbox` or
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`radio`.
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* `label` String (optional)
* `sublabel` String (optional)
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* `accelerator` [Accelerator](accelerator.md) (optional)
* `icon` ([NativeImage](native-image.md) | String) (optional)
* `enabled` Boolean (optional) - If false, the menu item will be greyed out and
unclickable.
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* `visible` Boolean (optional) - If false, the menu item will be entirely hidden.
* `checked` Boolean (optional) - Should only be specified for `checkbox` or `radio` type
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menu items.
* `registerAccelerator` Boolean (optional) - If false, the accelerator won't be registered
with the system, but it will still be displayed. Defaults to true.
* `submenu` (MenuItemConstructorOptions[] | [Menu](menu.md)) (optional) - Should be specified
for `submenu` type menu items. If `submenu` is specified, the `type: 'submenu'` can be omitted.
If the value is not a [`Menu`](menu.md) then it will be automatically converted to one using
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`Menu.buildFromTemplate`.
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* `id` String (optional) - Unique within a single menu. If defined then it can be used
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as a reference to this item by the position attribute.
* `before` String[] (optional) - Inserts this item before the item with the specified label. If
the referenced item doesn't exist the item will be inserted at the end of the menu. Also implies
that the menu item in question should be placed in the same “group” as the item.
* `after` String[] (optional) - Inserts this item after the item with the specified label. If the
referenced item doesn't exist the item will be inserted at the end of
the menu.
* `beforeGroupContaining` String[] (optional) - Provides a means for a single context menu to declare
the placement of their containing group before the containing group of the item
with the specified label.
* `afterGroupContaining` String[] (optional) - Provides a means for a single context menu to declare
the placement of their containing group after the containing group of the item
with the specified label.
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### Roles
Roles allow menu items to have predefined behaviors.
It is best to specify `role` for any menu item that matches a standard role,
rather than trying to manually implement the behavior in a `click` function.
The built-in `role` behavior will give the best native experience.
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The `label` and `accelerator` values are optional when using a `role` and will
default to appropriate values for each platform.
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Every menu item must have either a `role`, `label`, or in the case of a separator
a `type`.
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The `role` property can have following values:
* `undo`
* `redo`
* `cut`
* `copy`
* `paste`
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* `pasteAndMatchStyle`
* `selectAll`
* `delete`
* `minimize` - Minimize current window.
* `close` - Close current window.
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* `quit` - Quit the application.
* `reload` - Reload the current window.
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* `forceReload` - Reload the current window ignoring the cache.
* `toggleDevTools` - Toggle developer tools in the current window.
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* `toggleFullScreen` - Toggle full screen mode on the current window.
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* `resetZoom` - Reset the focused page's zoom level to the original size.
* `zoomIn` - Zoom in the focused page by 10%.
* `zoomOut` - Zoom out the focused page by 10%.
* `fileMenu` - Whole default "File" menu (Close / Quit)
* `editMenu` - Whole default "Edit" menu (Undo, Copy, etc.).
* `viewMenu` - Whole default "View" menu (Reload, Toggle Developer Tools, etc.)
* `windowMenu` - Whole default "Window" menu (Minimize, Close, etc.).
The following additional roles are available on _macOS_:
* `appMenu` - Whole default "App" menu (About, Services, etc.)
* `about` - Map to the `orderFrontStandardAboutPanel` action.
* `hide` - Map to the `hide` action.
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* `hideOthers` - Map to the `hideOtherApplications` action.
* `unhide` - Map to the `unhideAllApplications` action.
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* `startSpeaking` - Map to the `startSpeaking` action.
* `stopSpeaking` - Map to the `stopSpeaking` action.
* `front` - Map to the `arrangeInFront` action.
* `zoom` - Map to the `performZoom` action.
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* `toggleTabBar` - Map to the `toggleTabBar` action.
* `selectNextTab` - Map to the `selectNextTab` action.
* `selectPreviousTab` - Map to the `selectPreviousTab` action.
* `mergeAllWindows` - Map to the `mergeAllWindows` action.
* `moveTabToNewWindow` - Map to the `moveTabToNewWindow` action.
* `window` - The submenu is a "Window" menu.
* `help` - The submenu is a "Help" menu.
* `services` - The submenu is a "Services" menu.
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* `recentDocuments` - The submenu is an "Open Recent" menu.
* `clearRecentDocuments` - Map to the `clearRecentDocuments` action.
When specifying a `role` on macOS, `label` and `accelerator` are the only
options that will affect the menu item. All other options will be ignored.
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Lowercase `role`, e.g. `toggledevtools`, is still supported.
**Nota Bene:** The `enabled` and `visibility` properties are not available for top-level menu items in the tray on MacOS.
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### Instance Properties
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The following properties are available on instances of `MenuItem`:
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#### `menuItem.enabled`
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A `Boolean` indicating whether the item is enabled, this property can be
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dynamically changed.
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#### `menuItem.visible`
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A `Boolean` indicating whether the item is visible, this property can be
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dynamically changed.
#### `menuItem.checked`
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A `Boolean` indicating whether the item is checked, this property can be
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dynamically changed.
A `checkbox` menu item will toggle the `checked` property on and off when
selected.
A `radio` menu item will turn on its `checked` property when clicked, and
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will turn off that property for all adjacent items in the same menu.
You can add a `click` function for additional behavior.
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#### `menuItem.label`
A `String` representing the menu items visible label.
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#### `menuItem.click`
A `Function` that is fired when the MenuItem receives a click event.