68 lines
1.7 KiB
JavaScript
68 lines
1.7 KiB
JavaScript
/* eslint-disable no-param-reassign, consistent-return */
|
|
|
|
import AccessorUtilities from './lib/utils/accessor';
|
|
|
|
export default class Autosave {
|
|
constructor(field, key, fallbackKey) {
|
|
this.field = field;
|
|
|
|
this.isLocalStorageAvailable = AccessorUtilities.isLocalStorageAccessSafe();
|
|
if (key.join != null) {
|
|
key = key.join('/');
|
|
}
|
|
this.key = `autosave/${key}`;
|
|
this.fallbackKey = fallbackKey;
|
|
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);
|
|
const fallbackText = window.localStorage.getItem(this.fallbackKey);
|
|
|
|
if (text) {
|
|
this.field.val(text);
|
|
} else if (fallbackText) {
|
|
this.field.val(fallbackText);
|
|
}
|
|
|
|
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) {
|
|
if (this.fallbackKey) {
|
|
window.localStorage.setItem(this.fallbackKey, text);
|
|
}
|
|
return window.localStorage.setItem(this.key, text);
|
|
}
|
|
|
|
return this.reset();
|
|
}
|
|
|
|
reset() {
|
|
if (!this.isLocalStorageAvailable) return;
|
|
|
|
window.localStorage.removeItem(this.fallbackKey);
|
|
return window.localStorage.removeItem(this.key);
|
|
}
|
|
|
|
dispose() {
|
|
this.field.off('input');
|
|
}
|
|
}
|