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https://github.com/component/menu

Menu component
https://github.com/component/menu

Last synced: 12 days ago
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Menu component

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README

        

# Menu

Menu component with structural styling to give you a clean slate.

![js menu component](http://f.cl.ly/items/1Z1d3B1j283y3e200g3E/Screen%20Shot%202012-07-31%20at%203.57.10%20PM.png)

## Installation

```
$ npm install menu-component
```

## Features

- events for composition
- structural CSS letting you decide on style
- fluent API
- arrow key navigation

## Events

- `show` when shown
- `hide` when hidden
- `remove` (item) when an item is removed
- `clear` when the menu has been cleared
- `select` (item) when an item is selected
- `*` menu item events are emitted when clicked

## Example

```js
var Menu = require('menu');

var menu = new Menu;

menu
.add('Add item')
.add('Edit item', function(){ console.log('edit'); })
.add('Remove item', function(){ console.log('remove'); })
.add('Remove "Add item"', function(){
menu.remove('Add item');
menu.remove('Remove "Add item"');
});

menu.on('select', function(item){
console.log('selected "%s"', item);
});

menu.on('Add item', function(){
console.log('added an item');
});

oncontextmenu = function(e){
e.preventDefault();
menu.moveTo(e.pageX, e.pageY);
menu.show();
};
```

## API

### Menu()

Create a new `Menu`:

```js
var Menu = require('menu');
var menu = new Menu();
var menu = Menu();
```

### Menu#add([slug], text, [fn])

Add a new menu item with the given `text`, optional `slug` and callback `fn`.

Using events to handle selection:

```js
menu.add('Hello');

menu.on('Hello', function(){
console.log('clicked hello');
});
```

Using callbacks:

```js
menu.add('Hello', function(){
console.log('clicked hello');
});
```

Using a custom slug, otherwise "hello" is generated
from the `text` given, which may conflict with "rich"
styling like icons within menu items, or i18n.

```js
menu.add('add-item', 'Add Item');

menu.on('add-item', function(){
console.log('clicked "Add Item"');
});

menu.add('add-item', 'Add Item', function(){
console.log('clicked "Add Item"');
});
```

### Menu#remove(slug)

Remove an item by the given `slug`:

```js
menu.add('Add item');
menu.remove('Add item');
```

Or with custom slugs:

```js
menu.add('add-item', 'Add item');
menu.remove('add-item');
```

### Menu#clear()

Clears the menu.

```js
menu.clear();
```

### Menu#has(slug)

Check if a menu item is present.

```js
menu.add('Add item');

menu.has('Add item');
// => true

menu.has('add-item');
// => true

menu.has('Foo');
// => false
```

### Menu#moveTo(x, y)

Move the menu to `(x, y)`.

### Menu#show()

Show the menu.

### Menu#hide()

Hide the menu.

## License

MIT