80 lines
2.2 KiB
JavaScript
80 lines
2.2 KiB
JavaScript
"use strict";
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var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.chooseMethod = chooseMethod;
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var _native = _interopRequireDefault(require("./methods/native.js"));
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var _indexedDb = _interopRequireDefault(require("./methods/indexed-db.js"));
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var _localstorage = _interopRequireDefault(require("./methods/localstorage.js"));
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var _simulate = _interopRequireDefault(require("./methods/simulate.js"));
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var _util = require("./util");
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// order is important
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var METHODS = [_native["default"], // fastest
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_indexedDb["default"], _localstorage["default"]];
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/**
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* The NodeMethod is loaded lazy
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* so it will not get bundled in browser-builds
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*/
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if (_util.isNode) {
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/**
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* we use the non-transpiled code for nodejs
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* because it runs faster
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*/
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var NodeMethod = require('../../src/methods/' + // use this hack so that browserify and others
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// do not import the node-method by default
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// when bundling.
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'node.js');
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/**
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* this will be false for webpackbuilds
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* which will shim the node-method with an empty object {}
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*/
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if (typeof NodeMethod.canBeUsed === 'function') {
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METHODS.push(NodeMethod);
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}
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}
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function chooseMethod(options) {
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var chooseMethods = [].concat(options.methods, METHODS).filter(Boolean); // directly chosen
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if (options.type) {
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if (options.type === 'simulate') {
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// only use simulate-method if directly chosen
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return _simulate["default"];
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}
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var ret = chooseMethods.find(function (m) {
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return m.type === options.type;
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});
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if (!ret) throw new Error('method-type ' + options.type + ' not found');else return ret;
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}
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/**
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* if no webworker support is needed,
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* remove idb from the list so that localstorage is been chosen
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*/
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if (!options.webWorkerSupport && !_util.isNode) {
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chooseMethods = chooseMethods.filter(function (m) {
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return m.type !== 'idb';
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});
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}
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var useMethod = chooseMethods.find(function (method) {
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return method.canBeUsed();
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});
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if (!useMethod) throw new Error('No useable methode found:' + JSON.stringify(METHODS.map(function (m) {
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return m.type;
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})));else return useMethod;
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} |