events

events.js

Members

inner _supportsPassive

Whether passive event listeners are supported

inner, constant passiveEvents

Touch events Chrome expects to be passive

Methods

static fixEvent(event) → {Object}

Fix a native event to have standard property values

Parameters:
Name Type Description
event Object

Event object to fix.

Returns:
Object -

Fixed event object.

static off(elem, typeopt, fnopt)

Removes event listeners from an element

Parameters:
Name Type Attributes Description
elem Element | Object

Object to remove listeners from.

type string | Array.<string> <optional>

Type of listener to remove. Don't include to remove all events from element.

fn EventTarget~EventListener <optional>

Specific listener to remove. Don't include to remove listeners for an event type.

static on(elem, type, fn)

Add an event listener to element It stores the handler function in a separate cache object and adds a generic handler to the element's event, along with a unique id (guid) to the element.

Parameters:
Name Type Description
elem Element | Object

Element or object to bind listeners to

type string | Array.<string>

Type of event to bind to.

fn EventTarget~EventListener

Event listener.

static one(elem, type, fn)

Trigger a listener only once for an event.

Parameters:
Name Type Description
elem Element | Object

Element or object to bind to.

type string | Array.<string>

Name/type of event

fn Event~EventListener

Event listener function

static trigger(elem, event, hashopt) → {boolean|undefined}

Trigger an event for an element

Parameters:
Name Type Attributes Description
elem Element | Object

Element to trigger an event on

event EventTarget~Event | string

A string (the type) or an event object with a type attribute

hash Object <optional>

data hash to pass along with the event

Returns:
boolean | undefined -

Returns the opposite of defaultPrevented if default was prevented. Otherwise, returns undefined

inner _cleanUpEvents(elem, type)

Clean up the listener cache and dispatchers

Parameters:
Name Type Description
elem Element | Object

Element to clean up

type string

Type of event to clean up

inner _handleMultipleEvents(fn, elem, type, callback)

Loops through an array of event types and calls the requested method for each type.

Parameters:
Name Type Description
fn function

The event method we want to use.

elem Element | Object

Element or object to bind listeners to

type string

Type of event to bind to.

callback EventTarget~EventListener

Event listener.