Source: service/local-storage.js

  1. import Storage from './storage';
  3. /**
  4.  * OLE LocalStorage.
  5.  * Saves control properties to the browser's localStorage.
  6.  * @alias ole.service.LocalStorage
  7.  */
  8. export default class LocalStorage extends Storage {
  9.   /**
  10.    * @inheritdoc
  11.    */
  12.   storeProperties(controlName, properties) {
  13.     const props = super.storeProperties(controlName, properties);
  14.     window.localStorage.setItem(controlName, JSON.stringify(props));
  15.   }
  17.   /**
  18.    * @inheritdoc
  19.    */
  20.   restoreProperties() {
  21.     for (let i = 0; i < this.controls.length; i += 1) {
  22.       const controlName = this.controls[i].getProperties().title;
  23.       const props = window.localStorage.getItem(controlName);
  25.       if (props) {
  26.         this.controls[i].setProperties(JSON.parse(props), true);
  27.       }
  28.     }
  29.   }
  31.   /**
  32.    * @inheritdoc
  33.    */
  34.   storeActiveControls() {
  35.     const activeControlNames = super.storeActiveControls();
  36.     window.localStorage.setItem('active', JSON.stringify(activeControlNames));
  37.   }
  39.   /**
  40.    * @inheritdoc
  41.    */
  42.   restoreActiveControls() {
  43.     let activeControlNames = window.localStorage.getItem('active');
  44.     activeControlNames = activeControlNames
  45.       ? JSON.parse(activeControlNames)
  46.       : [];
  48.     if (!activeControlNames.length) {
  49.       return;
  50.     }
  52.     for (let i = 0; i < this.controls.length; i += 1) {
  53.       const controlName = this.controls[i].getProperties().title;
  55.       if (activeControlNames.indexOf(controlName) > -1) {
  56.         this.controls[i].activate();
  57.       } else {
  58.         this.controls[i].deactivate();
  59.       }
  60.     }
  61.   }
  62. }