debian-mirror-gitlab/app/assets/javascripts/autosave.js
2018-11-18 11:00:15 +05:30

60 lines
1.5 KiB
JavaScript

/* eslint-disable no-param-reassign, prefer-template, no-void, consistent-return */
import AccessorUtilities from './lib/utils/accessor';
export default class Autosave {
constructor(field, key) {
this.field = field;
this.isLocalStorageAvailable = AccessorUtilities.isLocalStorageAccessSafe();
if (key.join != null) {
key = key.join('/');
}
this.key = 'autosave/' + key;
this.field.data('autosave', this);
this.restore();
this.field.on('input', () => this.save());
}
restore() {
if (!this.isLocalStorageAvailable) return;
if (!this.field.length) return;
const text = window.localStorage.getItem(this.key);
if ((text != null ? text.length : void 0) > 0) {
this.field.val(text);
}
this.field.trigger('input');
// v-model does not update with jQuery trigger
// https://github.com/vuejs/vue/issues/2804#issuecomment-216968137
const event = new Event('change', { bubbles: true, cancelable: false });
const field = this.field.get(0);
if (field) {
field.dispatchEvent(event);
}
}
save() {
if (!this.field.length) return;
const text = this.field.val();
if (this.isLocalStorageAvailable && (text != null ? text.length : void 0) > 0) {
return window.localStorage.setItem(this.key, text);
}
return this.reset();
}
reset() {
if (!this.isLocalStorageAvailable) return;
return window.localStorage.removeItem(this.key);
}
dispose() {
this.field.off('input');
}
}