Members

inner _supportsPassive

utils/events.js, line 208

Whether passive event listeners are supported

inner, constant passiveEvents

utils/events.js, line 227

Touch events Chrome expects to be passive

Methods

static fixEvent(event) → {Object}

utils/events.js, line 86

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)

utils/events.js, line 329

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)

utils/events.js, line 247

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)

utils/events.js, line 460

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}

utils/events.js, line 401

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)

utils/events.js, line 25

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)

utils/events.js, line 70

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.