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const inherits = require('util').inherits
const Component = require('react').Component
const defaultKey = 'persistent-form-default'
const eventName = 'keyup'
module.exports = PersistentForm
function PersistentForm () {
Component.call(this)
}
inherits(PersistentForm, Component)
PersistentForm.prototype.componentDidMount = function () {
const fields = document.querySelectorAll('[data-persistent-formid]')
const store = this.getPersistentStore()
for (var i = 0; i < fields.length; i++) {
const field = fields[i]
const key = field.getAttribute('data-persistent-formid')
const cached = store[key]
if (cached !== undefined) {
field.value = cached
}
field.addEventListener(eventName, this.persistentFieldDidUpdate.bind(this))
}
}
PersistentForm.prototype.getPersistentStore = function () {
let store = window.localStorage[this.persistentFormParentId || defaultKey]
if (store && store !== 'null') {
store = JSON.parse(store)
} else {
store = {}
}
return store
}
PersistentForm.prototype.setPersistentStore = function (newStore) {
window.localStorage[this.persistentFormParentId || defaultKey] = JSON.stringify(newStore)
}
PersistentForm.prototype.persistentFieldDidUpdate = function (event) {
const field = event.target
const store = this.getPersistentStore()
const key = field.getAttribute('data-persistent-formid')
const val = field.value
store[key] = val
this.setPersistentStore(store)
}
PersistentForm.prototype.componentWillUnmount = function () {
const fields = document.querySelectorAll('[data-persistent-formid]')
for (var i = 0; i < fields.length; i++) {
const field = fields[i]
field.removeEventListener(eventName, this.persistentFieldDidUpdate.bind(this))
}
this.setPersistentStore({})
}
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