import "@arcgis/map-components/components/arcgis-basemap-gallery";The Basemap Gallery component displays a collection images representing basemaps from ArcGIS.com or a user-defined set of map or image services. When a new basemap is selected from the Basemap Gallery, the map's basemap layers are removed and replaced with the basemap layers of the associated basemap selected in the gallery.
Demo
Properties
| Property | Attribute | Type |
|---|---|---|
active-basemap | BasemapProperties | string | |
auto-destroy-disabled | boolean | |
disabled | boolean | |
heading-level | 1 | 2 | 3 | 4 | 5 | 6 | |
icon | string | |
label | string | |
| Record<string, unknown> | |
position | "bottom-leading" | "bottom-left" | "bottom-right" | "bottom-trailing" | "manual" | "top-leading" | "top-left" | "top-right" | "top-trailing" | |
reference-element | ||
| ||
statereadonly | state | "disabled" | "loading" | "ready" | "unsupported" |
activeBasemap
activeBasemap: BasemapProperties | stringThe map's current basemap.
- Attribute
- active-basemap
autoDestroyDisabled
autoDestroyDisabled: booleanIf true, the component will not be destroyed automatically when it is disconnected from the document. This is useful when you want to move the component to a different place on the page, or temporarily hide it. If this is set, make sure to call the destroy method when you are done to prevent memory leaks.
- Attribute
- auto-destroy-disabled
- Default value
- false
disabled
disabled: booleanWhen true, sets the component to a disabled state so the user cannot interact with it.
- Attribute
- disabled
- Default value
- false
headingLevel
headingLevel: 1 | 2 | 3 | 4 | 5 | 6Indicates the heading level to use for the message "No basemaps available" when no basemaps are available in the Basemap Gallery.
- Attribute
- heading-level
- Default value
- 2
icon
icon: stringIcon which represents the component. Typically used when the component is controlled by another component (e.g. by the Expand component).
- See also
- Attribute
- icon
- Default value
- "basemap"
messageOverrides
messageOverrides: Record<string, unknown>Replace localized message strings with your own strings.
Note: Individual message keys may change between releases.
position
position: "bottom-leading" | "bottom-left" | "bottom-right" | "bottom-trailing" | "manual" | "top-leading" | "top-left" | "top-right" | "top-trailing"- Attribute
- position
- Default value
- "bottom-left"
referenceElement
referenceElement: HTMLArcgisLinkChartElement | HTMLArcgisMapElement | HTMLArcgisSceneElement | stringBy assigning the id attribute of the Map or Scene component to this property, you can position a child component anywhere in the DOM while still maintaining a connection to the Map or Scene.
- Attribute
- reference-element
source
source: LocalBasemapsSource | PortalBasemapsSourceThe source for basemaps that the component will display.
state
state: "disabled" | "loading" | "ready" | "unsupported"The current state of the component.
- Attribute
- state
- Default value
- "disabled"
Slots
Events
| Event | Type |
|---|---|
CustomEvent<{ name: "state" | "activeBasemap"; }> | |
CustomEvent<void> |
arcgisPropertyChange
arcgisPropertyChange: CustomEvent<{ name: "state" | "activeBasemap"; }>Emitted when the value of a property is changed. Use this to listen to changes to properties.
Events triggered on this element will be propagated to their outermost elements.
The event is composable and will propagate across the shadow DOM into the standard DOM.
The event's default behavior can be canceled, allowing for custom behavior to be implemented instead.
arcgisReady
arcgisReady: CustomEvent<void>Emitted when the component associated with a map or scene view is is ready to be interacted with.
Events triggered on this element will be propagated to their outermost elements.
The event is composable and will propagate across the shadow DOM into the standard DOM.
The event's default behavior can be canceled, allowing for custom behavior to be implemented instead.
Methods
| Method | Signature |
|---|---|
componentOnReady(): Promise<void> | |
destroy(): Promise<void> |
componentOnReady
componentOnReady(): Promise<void>Create a promise that resolves once component is fully loaded.
Example
const arcgisBasemapGallery = document.querySelector("arcgis-basemap-gallery");
document.body.append(arcgisBasemapGallery);
await arcgisBasemapGallery.componentOnReady();
console.log("arcgis-basemap-gallery is ready to go!");- Returns
- Promise<void>