moviewyrm/bookwyrm/static/js/localstorage.js

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JavaScript
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/* exported LocalStorageTools */
/* globals BookWyrm */
let LocalStorageTools = new class {
constructor() {
document.querySelectorAll('[data-hide]')
.forEach(t => this.setDisplay(t));
document.querySelectorAll('.set-display')
.forEach(t => t.addEventListener('click', this.updateDisplay.bind(this)));
}
/**
* Update localStorage, then display content based on keys in localStorage.
*
* @param {Event} event
* @return {undefined}
*/
updateDisplay(event) {
// used in set reading goal
let key = event.target.dataset.id;
let value = event.target.dataset.value;
window.localStorage.setItem(key, value);
document.querySelectorAll('[data-hide="' + key + '"]')
.forEach(node => this.setDisplay(node));
}
/**
* Toggle display of a DOM node based on its value in the localStorage.
*
* @param {object} node - DOM node to toggle.
* @return {undefined}
*/
setDisplay(node) {
// used in set reading goal
let key = node.dataset.hide;
let value = window.localStorage.getItem(key);
BookWyrm.addRemoveClass(node, 'is-hidden', value);
}
}