@geogirafe/lib-geoportal/tools/share/serializers/streetviewserializer.js

GeoGirafe is a flexible application to build online geoportals.

import { isStreetViewProvider, isStreetViewView } from '../../state/streetview.js';
/**
 * Shares the footage displayed by each StreetView Component,
 * so that the Components display it again when the shared state is restored.
 */
export default class StreetViewSerializer {
    context;
    constructor(context) {
        this.context = context;
    }
    get streetview() {
        return this.context.stateManager.state.streetview;
    }
    brainSerialize(streetview) {
        return JSON.stringify(streetview.views);
    }
    /**
     * Applies the shared views, ignoring the providers and the views that are not valid:
     * a shared state can have been created by another version of the application.
     */
    brainDeserialize(str) {
        const parsedViews = JSON.parse(str);
        for (const [provider, view] of Object.entries(parsedViews ?? {})) {
            if (isStreetViewProvider(provider) && isStreetViewView(view)) {
                this.streetview.views[provider] = view;
            }
        }
    }
}