120 lines
2.6 KiB
JavaScript
120 lines
2.6 KiB
JavaScript
import { ApplicationEvents } from 'snjs';
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export class PureCtrl {
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/* @ngInject */
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constructor($timeout) {
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if(!$timeout) {
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throw Error('$timeout must not be null');
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}
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this.$timeout = $timeout;
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this.props = {};
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this.state = {};
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/* Allow caller constructor to finish setting instance variables */
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setImmediate(() => {
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this.state = this.getInitialState();
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});
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}
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$onInit() {
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this.addAppEventObserver();
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this.addAppStateObserver();
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}
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deinit() {
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this.unsubApp();
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this.unsubState();
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this.unsubApp = null;
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this.unsubState = null;
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this.application = null;
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if (this.stateTimeout) {
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this.$timeout.cancel(this.stateTimeout);
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}
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}
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$onDestroy() {
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this.deinit();
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}
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/** @private */
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async resetState() {
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this.state = this.getInitialState();
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await this.setState(this.state);
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}
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/** @override */
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getInitialState() {
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return {};
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}
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async setState(state) {
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if(!this.$timeout) {
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return;
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}
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return new Promise((resolve) => {
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this.stateTimeout = this.$timeout(() => {
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this.state = Object.freeze(Object.assign({}, this.state, state));
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resolve();
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});
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});
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}
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initProps(props) {
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if (Object.keys(this.props).length > 0) {
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throw 'Already init-ed props.';
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}
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this.props = Object.freeze(Object.assign({}, this.props, props));
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}
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addAppStateObserver() {
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this.unsubState = this.application.getAppState().addObserver((eventName, data) => {
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this.onAppStateEvent(eventName, data);
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});
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}
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onAppStateEvent(eventName, data) {
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/** Optional override */
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}
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addAppEventObserver() {
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if (this.application.isStarted()) {
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this.onAppStart();
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}
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if (this.application.isLaunched()) {
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this.onAppLaunch();
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}
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this.unsubApp = this.application.addEventObserver(async (eventName) => {
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this.onAppEvent(eventName);
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if (eventName === ApplicationEvents.Started) {
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await this.onAppStart();
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} else if (eventName === ApplicationEvents.Launched) {
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await this.onAppLaunch();
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} else if (eventName === ApplicationEvents.CompletedSync) {
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this.onAppSync();
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} else if (eventName === ApplicationEvents.KeyStatusChanged) {
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this.onAppKeyChange();
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}
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});
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}
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onAppEvent(eventName) {
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/** Optional override */
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}
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/** @override */
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async onAppStart() {
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await this.resetState();
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}
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async onAppLaunch() {
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/** Optional override */
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}
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async onAppKeyChange() {
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/** Optional override */
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}
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onAppSync() {
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/** Optional override */
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}
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} |