wisemapping-frontend/packages/mindplot/src/components/LocalStorageManager.js

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/*
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* Copyright [2021] [wisemapping]
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*
* Licensed under WiseMapping Public License, Version 1.0 (the "License").
* It is basically the Apache License, Version 2.0 (the "License") plus the
* "powered by wisemapping" text requirement on every single page;
* you may not use this file except in compliance with the License.
* You may obtain a copy of the license at
*
* http://www.wisemapping.org/license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import $ from 'jquery';
import PersistenceManager from './PersistenceManager';
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class LocalStorageManager extends PersistenceManager {
constructor(documentUrl, forceLoad) {
super();
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this.documentUrl = documentUrl;
this.forceLoad = forceLoad;
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}
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saveMapXml(mapId, mapXml, pref, saveHistory, events) {
localStorage.setItem(`${mapId}-xml`, mapXml);
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}
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discardChanges(mapId) {
localStorage.removeItem(`${mapId}-xml`);
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}
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loadMapDom(mapId) {
let xml = localStorage.getItem(`${mapId}-xml`);
if (xml == null || this.forceLoad) {
$.ajax({
url: this.documentUrl.replace('{id}', mapId),
headers: { 'Content-Type': 'text/plain', Accept: 'application/xml' },
type: 'get',
dataType: 'text',
async: false,
success(response) {
xml = response;
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},
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error(xhr, ajaxOptions, thrownError) {
console.error(`Request error => status:${xhr.status} ,thrownError: ${thrownError}`);
},
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});
// If I could not load it from a file, hard code one.
if (xml == null) {
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throw new Error(`Map could not be loaded with id:${mapId}`);
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}
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}
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return $.parseXML(xml);
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}
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unlockMap(mindmap) {
// Ignore, no implementation required ...
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}
}
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export default LocalStorageManager;