Readlebee/app/index.js

78 lines
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JavaScript
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import choo from 'choo';
import config from './config.json';
import { viewManager } from './views/manager';
const app = choo();
if (process.env.NODE_ENV !== 'production') {
// Only runs in development and will be stripped from production build.
app.use(require('choo-devtools')()); // Exposes `choo` to the console for debugging!
}
app.use((state, emitter) => {
app.getSettingsItem = settingsKey => {
let savedSettings = window.localStorage.getItem('settings');
if (savedSettings) {
savedSettings = JSON.parse(savedSettings);
if (typeof savedSettings[settingsKey] !== 'undefined') {
return savedSettings[settingsKey];
}
}
return null;
}
app.setSettingsItem = (settingsKey, value) => {
let savedSettings = window.localStorage.getItem('settings');
if (savedSettings) {
savedSettings = JSON.parse(savedSettings);
} else {
savedSettings = {};
}
savedSettings[settingsKey] = value;
return window.localStorage.setItem(JSON.stringify(savedSettings));
}
});
// App state and emitters
app.use((state, emitter) => {
// Default state variables
state.currentView = 'home';
state.language = app.getSettingsItem('lang') ? app.getSettingsItem('lang') : (navigator.language || navigator.userLanguage);
state.viewStates = {};
// Listeners
emitter.on('DOMContentLoaded', () => {
document.title = config.siteName;
// Emitter listeners
emitter.on('render', callback => {
// This is a dirty hack to get the callback to call *after* re-rendering.
if (callback && typeof callback === "function") {
setTimeout(() => {
callback();
}, 50);
}
});
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emitter.on('change-view', newView => {
// Change the view and call render. Makes it easier to call within views.
state.currentView = newView;
emitter.emit('render', () => {});
});
emitter.on('set-language', newLanguage => {
app.setSettingsItem('lang', newLanguage);
state.language = newLanguage;
emitter.emit('render', () => {});
});
});
});
// For the main screen, pass the viewManager function in viewManager.js,
// which is given the app's state from above and the emitter.emit method that
// triggers the app's emitter listeners.
app.route('/', viewManager);
app.route('/:page', viewManager);
app.route('/404', viewManager);
app.mount('body'); // Overwrite the `<body>` tag with the content of the Choo app