frappe/public/js/wn/router.js

// route urls to their virtual pages

// re-route map (for rename)
wn.re_route = {};
wn.route_titles = {};

wn.route = function() {
	if(wn.re_route[window.location.hash]) {
		// after saving a doc, for example,
		// "New DocType 1" and the renamed "TestDocType", both exist in history
		// now if we try to go back,
		// it doesn't allow us to go back to the one prior to "New DocType 1"
		// Hence if this check is true, instead of changing location hash, 
		// we just do a back to go to the doc previous to the "New DocType 1"
		var re_route_val = wn.get_route_str(wn.re_route[window.location.hash]);
		var cur_route_val = wn.get_route_str(wn._cur_route);
		if (decodeURIComponent(re_route_val) === decodeURIComponent(cur_route_val)) {
			window.history.back();
			return;
		} else {
			window.location.hash = wn.re_route[window.location.hash];
		}
	}

	wn._cur_route = window.location.hash;

	route = wn.get_route();	
	
	switch (route[0]) {
		case "List":
			wn.views.doclistview.show(route[1]);
			break;
		case "Form":
			if(route.length>3) {
				route[2] = route.splice(2).join('/');
			}
			wn.views.formview.show(route[1], route[2]);
			break;
		case "Report":
			wn.views.reportview.show(route[1], route[2]);
			break;
		case "Report2":
			wn.views.reportview2.show();
			break;
		default:
			wn.views.pageview.show(route[0]);
	}
	
	if(wn.route_titles[window.location.hash]) {
		document.title = wn.route_titles[window.location.hash];
	}
}

wn.get_route = function(route) {
	// route for web [deprecated after cms2]
	// if(!wn.boot) {
	// 	return [window.page_name];
	// }
	
	// for app
	return $.map(wn.get_route_str(route).split('/'), 
		function(r) { return decodeURIComponent(r); });
}

wn.get_route_str = function(route) {
	if(!route)
		route = window.location.hash;

	if(route.substr(0,1)=='#') route = route.substr(1);
	if(route.substr(0,1)=='!') route = route.substr(1);
	return route;	
}

wn.set_route = function() {
	route = $.map(arguments, function(a) { return encodeURIComponent(a) }).join('/');
	window.location.hash = route;
	
	// Set favicon (app.js)
	wn.app.set_favicon();
}

wn._cur_route = null;

$(window).bind('hashchange', function() {
	// save the title
	wn.route_titles[wn._cur_route] = document.title;

	if(window.location.hash==wn._cur_route)
		return;	
	wn.route();
});