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import camelCase from './camelCase';
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/**
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* DOM-based Routing
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*
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* Based on {@link http://goo.gl/EUTi53|Markup-based Unobtrusive Comprehensive DOM-ready Execution} by Paul Irish
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*
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* The routing fires all common scripts, followed by the page specific scripts.
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* Add additional events for more control over timing e.g. a finalize event
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*/
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class Router {
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/**
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* Create a new Router
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* @param {Object} routes
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*/
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constructor( routes ) {
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this.routes = routes;
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}
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/**
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* Fire Router events
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* @param {string} route DOM-based route derived from body classes (`<body class="...">`)
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* @param {string} [event] Events on the route. By default, `init` and `finalize` events are called.
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* @param {string} [arg] Any custom argument to be passed to the event.
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*/
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fire( route, event = 'init', arg ) {
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const fire =
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route !== '' &&
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this.routes[route] &&
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typeof this.routes[route][event] === 'function';
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if ( fire ) {
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this.routes[route][event]( arg );
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}
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}
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/**
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* Automatically load and fire Router events
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*
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* Events are fired in the following order:
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* * common init
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* * page-specific init
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* * page-specific finalize
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* * common finalize
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*/
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loadEvents() {
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// Fire common init JS
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this.fire( 'common' );
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// Fire page-specific init JS, and then finalize JS
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document.body.className
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.toLowerCase()
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.replace( /-/g, '_' )
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.split( /\s+/ )
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.map( camelCase )
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.forEach( className => {
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this.fire( className );
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this.fire( className, 'finalize' );
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} );
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// Fire common finalize JS
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this.fire( 'common', 'finalize' );
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}
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}
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export default Router;
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