forked from enviPath/enviPy
83 lines
2.1 KiB
JavaScript
83 lines
2.1 KiB
JavaScript
/****************************************************************************
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* Copyright 2017 EPAM Systems
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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***************************************************************************/
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/* local storage */
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const storage = {
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warningMessage: "Your changes will be lost after the tab closing. See Help (Note 2).",
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isAvailable: function () {
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try {
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return localStorage;
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} catch (ex) {
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return false;
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}
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},
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getItem: function (key) {
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let item = null;
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try {
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item = JSON.parse(localStorage.getItem(key));
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} catch (ex) {
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console.info('LocalStorage:', ex.name);
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}
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return item;
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},
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setItem: function (key, data) {
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let isSet = null;
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try {
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localStorage.setItem(key, JSON.stringify(data));
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isSet = true;
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} catch (ex) {
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console.info('LocalStorage:', ex.name);
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isSet = false;
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}
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return isSet;
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}
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};
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/* schema utils */
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function constant(schema, prop) {
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let desc = schema.properties[prop];
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return desc.constant || desc.enum[0]; // see https://git.io/v6hyP
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}
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function mapOf(schema, prop) {
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console.assert(schema.oneOf);
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return schema.oneOf.reduce((res, desc) => {
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res[constant(desc, prop)] = desc;
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return res;
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}, {});
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}
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function selectListOf(schema, prop) {
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let desc = schema.properties && schema.properties[prop];
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if (desc)
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return desc.enum.map((value, i) => {
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let title = desc.enumNames && desc.enumNames[i];
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return title ? { title, value } : value;
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});
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return schema.oneOf.map(desc => (
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!desc.title ? constant(desc, prop) : {
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title: desc.title,
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value: constant(desc, prop)
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}
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));
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}
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module.exports = {
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mapOf: mapOf,
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selectListOf: selectListOf,
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storage: storage
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};
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