Enabled back navigation in auth flow. Added navigation command for exiting

app/src/main/java/com/agileburo/anytype/navigation/Navigator.kt

@@ -80,6 +80,10 @@ class Navigator : AppNavigation {
         */
     }
 
+    override fun exit() {
+        navController?.popBackStack()
+    }
+
     fun bind(navController: NavController) {
         this.navController = navController
     }

app/src/main/java/com/agileburo/anytype/ui/auth/KeychainLoginFragment.kt

@@ -81,6 +81,7 @@ class KeychainLoginFragment : NavigationFragment(R.layout.fragment_keychain_logi
             )
         }
         qrLoginButton.setOnClickListener { vm.onScanQrCodeClicked() }
+        backButton.setOnClickListener { vm.onBackButtonPressed() }
     }
 
     override fun injectDependencies() {

app/src/main/java/com/agileburo/anytype/ui/auth/account/CreateAccountFragment.kt

@@ -41,6 +41,7 @@ class CreateAccountFragment : NavigationFragment(R.layout.fragment_create_accoun
             vm.onCreateProfileClicked(nameInputField.text.toString())
         }
         profileIconPlaceholder.setOnClickListener { proceedWithImagePick() }
+        backButton.setOnClickListener { vm.onBackButtonClicked() }
     }
 
     override fun onDestroyView() {

app/src/main/java/com/agileburo/anytype/ui/base/NavigationFragment.kt

@@ -37,6 +37,7 @@ abstract class NavigationFragment(
             is Command.OpenProfile -> navigation.openProfile()
             is Command.OpenDocument -> navigation.openDocument(command.id)
             is Command.OpenKeychainScreen -> navigation.openKeychainScreen()
+            is Command.Exit -> navigation.exit()
         }
     }
 

presentation/src/main/java/com/agileburo/anytype/presentation/auth/account/CreateAccountViewModel.kt

@@ -23,4 +23,8 @@ class CreateAccountViewModel(
         session.avatarPath = path
         Timber.d("Path set: $path")
     }
+
+    fun onBackButtonClicked() {
+        navigation.postValue(Event(AppNavigation.Command.Exit))
+    }
 }

presentation/src/main/java/com/agileburo/anytype/presentation/auth/keychain/KeychainLoginViewModel.kt

@@ -30,6 +30,10 @@ class KeychainLoginViewModel(
         proceedWithRecoveringWallet(chain)
     }
 
+    fun onBackButtonPressed() {
+        navigation.postValue(Event(AppNavigation.Command.Exit))
+    }
+
     private fun proceedWithRecoveringWallet(chain: String) {
 
         state.postValue(ViewState.Loading)

presentation/src/main/java/com/agileburo/anytype/presentation/navigation/AppNavigation.kt

@@ -18,8 +18,12 @@ interface AppNavigation {
     fun startDesktopFromLogin()
     fun startSplashFromDesktop()
     fun openKeychainScreen()
+    fun exit()
 
     sealed class Command {
+
+        object Exit : Command()
+
         object OpenStartLoginScreen : Command()
         object OpenCreateAccount : Command()
         object ChoosePinCodeScreen : Command()