89 lines
2.3 KiB
JavaScript
89 lines
2.3 KiB
JavaScript
import { Store } from 'svelte/store.js'
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const LS = process.browser && localStorage
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class LocalStorageStore extends Store {
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constructor(state) {
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super(state)
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if (process.browser) {
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this.lastChanged = {}
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let newState = {}
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for (let i = 0, len = LS.length; i < len; i++) {
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let key = LS.key(i)
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if (key.startsWith('store_')) {
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let item = LS.getItem(key)
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newState[key.substring(6)] = item === 'undefined' ? undefined : JSON.parse(item)
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}
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}
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this.set(newState)
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this.onchange((state, changed) => {
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Object.keys(changed).forEach(change => {
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if (!this._computed[change]) { // TODO: better way to ignore computed values?
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this.lastChanged[change] = true
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}
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})
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})
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}
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}
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save() {
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if (process.browser) {
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Object.keys(this.lastChanged).forEach(key => {
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LS.setItem(`store_${key}`, JSON.stringify(this.get(key)))
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})
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this.lastChanged = {}
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}
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}
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}
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const store = new LocalStorageStore({
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instanceNameInSearch: '',
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currentRegisteredInstance: null,
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currentRegisteredInstanceName: '',
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currentInstance: null,
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loggedInInstances: {},
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loggedInInstancesInOrder: [],
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instanceThemes: {}
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})
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store.compute(
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'isUserLoggedIn',
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['currentInstance', 'loggedInInstances'],
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(currentInstance, loggedInInstances) => !!(currentInstance && Object.keys(loggedInInstances).includes(currentInstance))
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)
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store.compute(
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'loggedInInstancesAsList',
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['currentInstance', 'loggedInInstances', 'loggedInInstancesInOrder'],
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(currentInstance, loggedInInstances, loggedInInstancesInOrder) => {
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return loggedInInstancesInOrder.map(instanceName => {
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return Object.assign({
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current: currentInstance === instanceName,
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name: instanceName
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}, loggedInInstances[instanceName])
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})
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}
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)
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store.compute(
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'currentInstanceData',
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['currentInstance', 'loggedInInstances'],
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(currentInstance, loggedInInstances) => {
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return Object.assign({
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name: currentInstance
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}, loggedInInstances[currentInstance])
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})
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store.compute(
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'currentTheme',
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['currentInstance', 'instanceThemes'],
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(currentInstance, instanceThemes) => {
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return instanceThemes[currentInstance] || 'default'
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}
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)
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if (process.browser && process.env.NODE_ENV !== 'production') {
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window.store = store // for debugging
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}
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export { store } |