OpenLayers

Class: Pointer

ol.interaction.Pointer

Base class that calls user-defined functions on down, move and up events. This class also manages "drag sequences".

When the handleDownEvent user function returns true a drag sequence is started. During a drag sequence the handleDragEvent user function is called on move events. The drag sequence ends when the handleUpEvent user function is called and returns false.

new ol.interaction.Pointer(opt_options)

src/ol/interaction/pointer.js, line 26
Name Type Description
options

Options.

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, also during a drag sequence (so during a drag sequence both the handleDragEvent function and this function are called).
handleUpEvent function | undefined

Function handling "up" events. If the function returns false then the current drag sequence is stopped.
Fires:

Subclasses

Extends

Observable Properties

Name Type Settable ol.Object.Event type Description
active boolean yes change:active

true if the interaction is active, false otherwise.

Methods

ol.interaction.Pointer.handleEvent(mapBrowserEvent){boolean}

src/ol/interaction/pointer.js, line 179

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

This:
Name Type Description
mapBrowserEvent ol.MapBrowserEvent

Map browser event.
Returns:
false to stop event propagation.

changed() inherited

src/ol/observable.js, line 58

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

dispatchEvent(event) inherited

src/ol/observable.js, line 75

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 Object | ol.events.Event | string

Event object.

get(key){*} inherited

src/ol/object.js, line 101

Gets a value.

Name Type Description
key string

Key name.
Returns:
Value.

getActive(){boolean} inherited

src/ol/interaction/interaction.js, line 55

Return whether the interaction is currently active.

Returns:
true if the interaction is active, false otherwise.

getKeys(){Array.<string>} inherited

src/ol/object.js, line 115

Get a list of object property names.

Returns:
List of property names.

getMap(){ol.Map} inherited

src/ol/interaction/interaction.js, line 66

Get the map associated with this interaction.

Returns:
Map.

getProperties(){Object.<string, *>} inherited

src/ol/object.js, line 125

Get an object of all property names and values.

Returns:
Object.

getRevision(){number} inherited

src/ol/observable.js, line 84

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

Returns:
Revision.

on(type, listener, opt_this){ol.EventsKey|Array.<ol.EventsKey>} inherited

src/ol/observable.js, line 99

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.
this Object

The object to use as this in listener.
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, opt_this){ol.EventsKey|Array.<ol.EventsKey>} inherited

src/ol/observable.js, line 124

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.
this Object

The object to use as this in listener.
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, opt_silent) inherited

src/ol/object.js, line 150

Sets a value.

Name Type Description
key string

Key name.
value *

Value.
silent boolean

Update without triggering an event.

setActive(active) inherited

src/ol/interaction/interaction.js, line 77

Activate or deactivate the interaction.

Name Type Description
active boolean

Active.

setProperties(values, opt_silent) inherited

src/ol/object.js, line 170

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 Object.<string, *>

Values.
silent boolean

Update without triggering an event.

un(type, listener, opt_this) inherited

src/ol/observable.js, line 147

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.
this Object

The object which was used as this by the listener.

unset(key, opt_silent) inherited

src/ol/object.js, line 184

Unsets a property.

Name Type Description
key string

Key name.
silent boolean

Unset without triggering an event.