LocalBasemapsSource

AMD: require(["esri/widgets/BasemapGallery/support/LocalBasemapsSource"], (LocalBasemapsSource) => { /* code goes here */ });
ESM: import LocalBasemapsSource from "@arcgis/core/widgets/BasemapGallery/support/LocalBasemapsSource";
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

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
Collection<Basemap>

A collection of Basemaps.

more details
LocalBasemapsSource
String

The name of the class.

more details
Accessor
String

The source's state.

more details
LocalBasemapsSource

Property Details

basemaps Collection<Basemap>

A collection of Basemaps.

declaredClass Stringreadonly inherited
Since: ArcGIS Maps SDK for JavaScript 4.7

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

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.

more details
Accessor
Boolean

Returns true if a named group of handles exist.

more details
Accessor

Removes a group of handles owned by the object.

more details
Accessor

Method Details

addHandles(handleOrHandles, groupKey)inherited
Since: ArcGIS Maps SDK for JavaScript 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 }
);

// Handle gets removed when the object is destroyed.
this.addHandles(handle);
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(groupKey){Boolean}inherited
Since: ArcGIS Maps SDK for JavaScript 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(groupKey)inherited
Since: ArcGIS Maps SDK for JavaScript 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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