LocalBasemapsSource

AMD: require(["esri/widgets/BasemapGallery/support/LocalBasemapsSource"], (LocalBasemapsSource) => { /* code goes here */ });
ESM: import LocalBasemapsSource from "@arcgis/core/widgets/BasemapGallery/support/LocalBasemapsSource.js";
Class: esri/widgets/BasemapGallery/support/LocalBasemapsSource
Inheritance: LocalBasemapsSource Accessor
Subclasses: PortalBasemapsSource
Since: ArcGIS Maps SDK for JavaScript 4.3

The LocalBasemapsSource class is a Collection-driven Basemap source in the BasemapGalleryViewModel or BasemapGallery widget.

See also
Example
// in this example, the portal item is a webmap
let basemap = new Basemap({
 portalItem: {
   id: "867895a71a1840399476fc717e76bb43" // Mid-Century Map
 }
});
let basemapGallery = new BasemapGallery({
 source: new LocalBasemapsSource({
   basemaps: [
     Basemap.fromId("topo-vector"), // create a basemap from a well known id
     basemap
   ]
  }),
 view: view
});
view.ui.add(basemapGallery, 'top-right');

Constructors

LocalBasemapsSource

Constructor
new LocalBasemapsSource(properties)
Parameter
properties Object
optional

See the properties for a list of all the properties that may be passed into the constructor.

Property Overview

Any properties can be set, retrieved or listened to. See the Working with Properties topic.
Show inherited properties Hide inherited properties
Name Type Summary Class

A collection of Basemaps.

LocalBasemapsSource

The name of the class.

Accessor

The source's state.

LocalBasemapsSource

Property Details

basemaps

Property
basemaps Collection<Basemap>

A collection of Basemaps.

declaredClass

Inherited
Property
declaredClass Stringreadonly
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.7 Accessor since 4.0, declaredClass added at 4.7.

The name of the class. The declared class name is formatted as esri.folder.className.

state

Property
state Stringreadonly

The source's state. The state is always ready.

Method Overview

Show inherited methods Hide inherited methods
Name Return Type Summary Class

Adds one or more handles which are to be tied to the lifecycle of the object.

Accessor

Returns true if a named group of handles exist.

Accessor

Removes a group of handles owned by the object.

Accessor

Method Details

addHandles

Inherited
Method
addHandles(handleOrHandles, groupKey)
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, addHandles added at 4.25.

Adds one or more handles which are to be tied to the lifecycle of the object. The handles will be removed when the object is destroyed.

// Manually manage handles
const handle = reactiveUtils.when(
  () => !view.updating,
  () => {
    wkidSelect.disabled = false;
  },
  { once: true }
);

this.addHandles(handle);

// Destroy the object
this.destroy();
Parameters
handleOrHandles WatchHandle|WatchHandle[]

Handles marked for removal once the object is destroyed.

groupKey *
optional

Key identifying the group to which the handles should be added. All the handles in the group can later be removed with Accessor.removeHandles(). If no key is provided the handles are added to a default group.

hasHandles

Inherited
Method
hasHandles(groupKey){Boolean}
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, hasHandles added at 4.25.

Returns true if a named group of handles exist.

Parameter
groupKey *
optional

A group key.

Returns
Type Description
Boolean Returns true if a named group of handles exist.
Example
// Remove a named group of handles if they exist.
if (obj.hasHandles("watch-view-updates")) {
  obj.removeHandles("watch-view-updates");
}

removeHandles

Inherited
Method
removeHandles(groupKey)
Inherited from Accessor
Since: ArcGIS Maps SDK for JavaScript 4.25 Accessor since 4.0, removeHandles added at 4.25.

Removes a group of handles owned by the object.

Parameter
groupKey *
optional

A group key or an array or collection of group keys to remove.

Example
obj.removeHandles(); // removes handles from default group

obj.removeHandles("handle-group");
obj.removeHandles("other-handle-group");

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