PointerInteraction — OpenLayers API reference

new PointerInteraction(options) interaction/Pointer.js, line 45

Name	Type	Description
`handleDownEvent`	function \| undefined	Function handling "down" events. If the function returns `true` then a drag sequence is started.
`handleDragEvent`	function \| undefined	Function handling "drag" events. This function is called on "move" events during a drag sequence.
`handleEvent`	function \| undefined	Method called by the map to notify the interaction that a browser event was dispatched to the map. The function may return `false` to prevent the propagation of the event to other interactions in the map's interactions chain.
`handleMoveEvent`	function \| undefined	Function handling "move" events. This function is called on "move" events. This functions is also called during a drag sequence, so during a drag sequence both the `handleDragEvent` function and this function are called. If `handleDownEvent` is defined and it returns true this function will not be called during a drag sequence.
`handleUpEvent`	function \| undefined	Function handling "up" events. If the function returns `false` then the current drag sequence is stopped.
`stopDown`	function \| undefined	Should the down event be propagated to other interactions, or should be stopped?

Fires:

change (BaseEvent) - Generic change event. Triggered when the revision counter is increased.
change:active (ObjectEvent)
error (BaseEvent) - Generic error event. Triggered when an error occurs.
propertychange (ObjectEvent) - Triggered when a property is changed.

Subclasses

DragBox
DragPan
DragRotateAndZoom
DragRotate
Draw
Extent
Modify
PinchRotate
PinchZoom
Snap
Translate

Extends

Interaction

Observable Properties

Name	Type	Settable	ObjectEvent type	Description
`active`	boolean	yes	`change:active`	`true` if the interaction is active, `false` otherwise.

Methods

changed() inherited Observable.js, line 72

Increases the revision counter and dispatches a 'change' event.

dispatchEvent(event){boolean | undefined} inherited events/Target.js, line 85

Dispatches an event and calls all listeners listening for events of this type. The event parameter can either be a string or an Object with a type property.

Name	Type	Description
`event`	BaseEvent \| string	Event object.

Returns:

false if anyone called preventDefault on the event object or if any of the listeners returned false.

get(key){*} inherited Object.js, line 136

Gets a value.

Name	Type	Description
`key`	string	Key name.

Returns:

Value.

getActive(){boolean} inherited interaction/Interaction.js, line 82

Return whether the interaction is currently active.

Returns:

true if the interaction is active, false otherwise.

getKeys(){Array.<string>} inherited Object.js, line 149

Get a list of object property names.

Returns:

List of property names.

getMap(){Map | null} inherited interaction/Interaction.js, line 91

Get the map associated with this interaction.

Returns:

Map.

getPointerCount(){number} interaction/Pointer.js, line 95

Returns the current number of pointers involved in the interaction, e.g. 2 when two fingers are used.

Returns:

The number of pointers.

getProperties(){NoInfer.<Properties>} inherited Object.js, line 158

Get an object of all property names and values.

Returns:

Object.

getRevision(){number} inherited Observable.js, line 83

Get the version number for this object. Each time the object is modified, its version number will be incremented.

Returns:

Revision.

handleEvent(mapBrowserEvent){boolean} interaction/Pointer.js, line 125

Handles the map browser event and may call into other functions, if event sequences like e.g. 'drag' or 'down-up' etc. are detected.

Name	Type	Description
`mapBrowserEvent`	MapBrowserEvent	Map browser event.

Returns:

false to stop event propagation.

on(type, listener){EventsKey | Array<EventsKey>} inherited Observable.js, line 156

Listen for a certain type of event.

Name	Type	Description
`type`	string \| Array.<string>	The event type or array of event types.
`listener`	function	The listener function.

Returns:

Unique key for the listener. If called with an array of event types as the first argument, the return will be an array of keys.

once(type, listener){EventsKey | Array<EventsKey>} inherited Observable.js, line 168

Listen once for a certain type of event.

Name	Type	Description
`type`	string \| Array.<string>	The event type or array of event types.
`listener`	function	The listener function.

Returns:

Unique key for the listener. If called with an array of event types as the first argument, the return will be an array of keys.

set(key, value, silent) inherited Object.js, line 218

Sets a value.

Name	Type	Description
`key`	string	Key name.
`value`	*	Value.
`silent`	boolean \| undefined	Update without triggering an event.

setActive(active) inherited interaction/Interaction.js, line 111

Activate or deactivate the interaction.

Name	Type	Description
`active`	boolean	Active.

setProperties(values, silent) inherited Object.js, line 241

Sets a collection of key-value pairs. Note that this changes any existing properties and adds new ones (it does not remove any existing properties).

Name	Type	Description
`values`	Partial.<NoInfer.<Properties>>	Values.
`silent`	boolean \| undefined	Update without triggering an event.

un(type, listener) inherited Observable.js, line 177

Unlisten for a certain type of event.

Name	Type	Description
`type`	string \| Array.<string>	The event type or array of event types.
`listener`	function	The listener function.

unset(key, silent) inherited Object.js, line 265

Unsets a property.

Name	Type	Description
`key`	string	Key name.
`silent`	boolean \| undefined	Unset without triggering an event.