@ngageoint/geopackage/dist/lib/context/context.js

GeoPackage JavaScript Library

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.Context = void 0;
var db_1 = require("../db/db");
var sqliteAdapter_1 = require("../db/sqliteAdapter");
var sqljsAdapter_1 = require("../db/sqljsAdapter");
var canvas_1 = require("../canvas/canvas");
var canvasKitCanvasAdapter_1 = require("../canvas/canvasKitCanvasAdapter");
var htmlCanvasAdapter_1 = require("../canvas/htmlCanvasAdapter");
var offscreenCanvasAdapter_1 = require("../canvas/offscreenCanvasAdapter");
var Context = /** @class */ (function () {
    function Context() {
    }
    Context.initializeContext = function () {
        return __awaiter(this, void 0, void 0, function () {
            return __generator(this, function (_a) {
                switch (_a.label) {
                    case 0: return [4 /*yield*/, canvas_1.Canvas.initializeAdapter()];
                    case 1:
                        _a.sent();
                        return [2 /*return*/];
                }
            });
        });
    };
    /**
     * Registers the sqlite adapter. Will check for better-sqlite3 dependency before trying.
     * @private
     */
    Context.registerSqliteAdapter = function () {
        try {
            // better-sqlite3 is an optional dependency
            require('better-sqlite3');
            db_1.Db.registerDbAdapter(sqliteAdapter_1.SqliteAdapter);
        }
        catch (e) {
            console.error('Unable to register SqliteAdapter. The better-sqlite3 module was not found. Falling back to SqljsAdapter.');
            // fallback to sqljs adapter
            db_1.Db.registerDbAdapter(sqljsAdapter_1.SqljsAdapter);
        }
    };
    Context.setupNodeContext = function () {
        Context.registerSqliteAdapter();
        canvas_1.Canvas.registerCanvasAdapter(canvasKitCanvasAdapter_1.CanvasKitCanvasAdapter);
    };
    Context.setupBrowserContext = function () {
        db_1.Db.registerDbAdapter(sqljsAdapter_1.SqljsAdapter);
        canvas_1.Canvas.registerCanvasAdapter(htmlCanvasAdapter_1.HtmlCanvasAdapter);
    };
    Context.setupWebWorkerContext = function () {
        db_1.Db.registerDbAdapter(sqljsAdapter_1.SqljsAdapter);
        canvas_1.Canvas.registerCanvasAdapter(offscreenCanvasAdapter_1.OffscreenCanvasAdapter);
    };
    /**
     * Will attempt to register a custom context.
     * @param dbAdapter
     * @param canvasAdapter
     */
    Context.setupCustomContext = function (dbAdapter, canvasAdapter) {
        db_1.Db.registerDbAdapter(dbAdapter);
        canvas_1.Canvas.registerCanvasAdapter(canvasAdapter);
    };
    Context.setupDefaultContext = function () {
        if (Context.isNode) {
            Context.setupNodeContext();
        }
        else if (Context.isBrowser) {
            Context.setupBrowserContext();
        }
        else if (Context.isWebWorker) {
            Context.setupWebWorkerContext();
        }
    };
    Context.isNode = typeof process !== 'undefined' && process.versions != null && process.versions.node != null;
    Context.isBrowser = typeof window !== 'undefined' && typeof window.document !== 'undefined';
    // @ts-ignore
    Context.isWebWorker = typeof importScripts !== 'undefined';
    return Context;
}());
exports.Context = Context;
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