@geogirafe/lib-geoportal/tools/share/sessionmanager.js

GeoGirafe is a flexible application to build online geoportals.

// SPDX-License-Identifier: Apache-2.0
import GirafeSingleton from '../../base/GirafeSingleton.js';
class SessionManager extends GirafeSingleton {
    sessionHash = 'session';
    initializeSingleton() {
        window.addEventListener('pagehide', () => this.saveStateToSession());
    }
    beginSession() {
        this.context.urlManager.updateHash(this.sessionHash);
    }
    saveStateToSession() {
        console.debug('Saving state to sessionStorage');
        const serializedState = this.context.stateSerializer.getSerializedState();
        sessionStorage.setItem('geogirafe-state', serializedState);
    }
    hasState() {
        if (this.context.urlManager.hasHash(this.sessionHash)) {
            const serializedState = sessionStorage.getItem('geogirafe-state');
            return serializedState !== null;
        }
        return false;
    }
    setStateFromSession() {
        let stateRestored = false;
        const serializedState = sessionStorage.getItem('geogirafe-state');
        if (serializedState) {
            console.debug('Restoring state from sessionStorage');
            stateRestored = this.context.stateSerializer.deserializeAndSetState(serializedState);
        }
        return stateRestored;
    }
}
export default SessionManager;