Dom-Emitter

A mixin class for managing the events of a MVC style View.

Features

• stores all listeners making cleanup easy
• one DOM binding per event type
• intuitive delegation
• emits proper DOM events
• convenient method binding
• efficient context binding (no fn.bind(this))

Installation

With component, packin or npm

$ {package mananger} install jkroso/dom-emitter

then in your app:

var Emitter = require('dom-emitter')

API

Emitter(object)

mix Emitter methods on to object

Emitter.on(type:String, [fn]:String)

Bind fn to type events. When fn is undefined it will be inferred from type. Delegation can also be specified in type by leaving a space then a css selector which is relative to this.el.

 this.on('click', this.onClick)
 this.on('click', 'onClick')
 this.on('click')     // implies "onClick"
 this.on('click .ok') // delegates to `.ok`

Emitter.off(type:String, [method]:String)

unbind fn from type events

All the following are equivalent:

this.off('click', this.onClick)
this.off('click', 'onClick')
this.off('click')

Emitter.emit(topic:String, [data]:Object)

Create a DOM event and send it down to this.el. Any data you pass will be merged with the event object.

this.emit('mousedown')
this.emit('login', {user: user})
this.emit('keydown', {key: 'enter'})

bind()

hook into the DOM

unbind()

unhook from the DOM

bindEvents(self:emitter)

convenience function for binding all events