Allow searching for posts/users by opening URL with the tusker:// protocol

Tusker/AppDelegate.swift

@@ -30,6 +30,23 @@ class AppDelegate: UIResponder, UIApplicationDelegate {
     func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {
         if url.host == "x-callback-url" {
             return XCBManager.handle(url: url)
+        } else if var components = URLComponents(url: url, resolvingAgainstBaseURL: false),
+            let tabBarController = window!.rootViewController as? MainTabBarViewController,
+            let navigationController = tabBarController.viewControllers?[3] as? UINavigationController,
+            let searchController = navigationController.viewControllers.first as? SearchTableViewController {
+            
+            components.scheme = "https"
+            
+            tabBarController.selectedIndex = 3
+            navigationController.popToRootViewController(animated: false)
+            
+            searchController.loadViewIfNeeded()
+            
+            let query = components.url!.absoluteString
+            searchController.searchController.searchBar.searchTextField.text = query
+            searchController.performSearch(query: query)
+            
+            return true
         }
         return false
     }