@aurigma/design-atoms/History/SnapshotHandler.js

Design Atoms is a part of Customer's Canvas SDK which allows for manipulating individual design elements through your code.

import { Surface } from "@aurigma/design-atoms-model/Product";
import { NotImplementedException } from "@aurigma/design-atoms-model/Exception";
export class SnapshotHandler {
    constructor(_viewer) {
        this._viewer = _viewer;
    }
    get _product() {
        return this._surface != null ? this._surface.parentProduct : null;
    }
    get _surface() {
        return this._viewer.surface;
    }
    createSnapshot() {
        const snapshotObject = this._product != null ? this._product : this._surface;
        if (snapshotObject == null)
            return;
        return snapshotObject.clone();
    }
    loadSnapshot(originalSnapshot) {
        var _a;
        const eventManager = this._viewer.eventManager;
        const snapshot = originalSnapshot.clone();
        eventManager.beforeSnapshotLoad.fire(snapshot);
        if (snapshot instanceof Surface) {
            throw new NotImplementedException("Surface as snapshot not implemented!");
        }
        else {
            const oldSurfaceId = this._surface.id;
            this._viewer.surface = (_a = snapshot.surfaces.firstOrDefault(s => s.id === oldSurfaceId)) !== null && _a !== void 0 ? _a : snapshot.surfaces.get(0);
            eventManager.snapshotLoadedEvent.fire(snapshot);
        }
    }
}
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