Various PIN bug fixes.

app/src/main/java/org/thoughtcrime/securesms/conversation/ConversationFragment.java

@@ -999,6 +999,7 @@ public class ConversationFragment extends Fragment
 
       if (messageRecord.isSecure()       &&
           !messageRecord.isUpdate()      &&
+          !recipient.get().isBlocked()   &&
           ((ConversationAdapter) list.getAdapter()).getSelectedItems().isEmpty())
       {
         isReacting = true;

app/src/main/java/org/thoughtcrime/securesms/lock/v2/ConfirmKbsPinFragment.java

@@ -2,8 +2,10 @@ package org.thoughtcrime.securesms.lock.v2;
 
 import android.animation.Animator;
 import android.app.Activity;
+import android.content.Context;
 import android.content.Intent;
 import android.view.View;
+import android.view.inputmethod.InputMethodManager;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.RawRes;
@@ -75,6 +77,7 @@ public class ConfirmKbsPinFragment extends BaseKbsPinFragment<ConfirmKbsPinViewM
         break;
       case CREATING_PIN:
         getLabel().setText(R.string.ConfirmKbsPinFragment__creating_pin);
+        getInput().setEnabled(false);
         break;
       case RE_ENTER_PIN:
         getLabel().setText(R.string.ConfirmKbsPinFragment__re_enter_pin);

app/src/main/java/org/thoughtcrime/securesms/registration/fragments/EnterCodeFragment.java

@@ -127,7 +127,7 @@ public final class EnterCodeFragment extends BaseRegistrationFragment {
               @Override
               public void onSuccess(Boolean r) {
                 Navigation.findNavController(requireView())
-                          .navigate(EnterCodeFragmentDirections.actionRequireKbsLockPin(timeRemaining));
+                          .navigate(EnterCodeFragmentDirections.actionRequireKbsLockPin(timeRemaining, true));
               }
             });
           }
@@ -141,7 +141,7 @@ public final class EnterCodeFragment extends BaseRegistrationFragment {
               @Override
               public void onSuccess(Boolean r) {
                 Navigation.findNavController(requireView())
-                          .navigate(EnterCodeFragmentDirections.actionRequireKbsLockPin(timeRemaining));
+                          .navigate(EnterCodeFragmentDirections.actionRequireKbsLockPin(timeRemaining, false));
               }
             });
           }

app/src/main/java/org/thoughtcrime/securesms/registration/fragments/RegistrationLockFragment.java

@@ -63,7 +63,13 @@ public final class RegistrationLockFragment extends BaseRegistrationFragment {
     keyboardToggle = view.findViewById(R.id.kbs_lock_keyboard_toggle);
     forgotPin      = view.findViewById(R.id.kbs_lock_forgot_pin);
 
-    timeRemaining = RegistrationLockFragmentArgs.fromBundle(requireArguments()).getTimeRemaining();
+    RegistrationLockFragmentArgs args = RegistrationLockFragmentArgs.fromBundle(requireArguments());
+
+    timeRemaining = args.getTimeRemaining();
+
+    if (args.getIsV1RegistrationLock()) {
+      keyboardToggle.setVisibility(View.GONE);
+    }
 
     forgotPin.setVisibility(View.GONE);
     forgotPin.setOnClickListener(v -> handleForgottenPin(timeRemaining));
@@ -78,10 +84,7 @@ public final class RegistrationLockFragment extends BaseRegistrationFragment {
       return false;
     });
 
-    pinEntry.setFocusable(true);
+    enableAndFocusPinEntry();
-    if (pinEntry.requestFocus()) {
-      ServiceUtil.getInputMethodManager(pinEntry.getContext()).showSoftInput(pinEntry, 0);
-    }
 
     pinButton.setOnClickListener((v) -> {
       hideKeyboard(requireContext(), pinEntry);
@@ -136,6 +139,8 @@ public final class RegistrationLockFragment extends BaseRegistrationFragment {
   }
 
   private void handlePinEntry() {
+    pinEntry.setEnabled(false);
+
     final String pin = pinEntry.getText().toString();
 
     int trimmedLength = pin.replace(" ", "").length();
@@ -179,6 +184,7 @@ public final class RegistrationLockFragment extends BaseRegistrationFragment {
 
           cancelSpinning(pinButton);
           pinEntry.getText().clear();
+          enableAndFocusPinEntry();
 
           errorLabel.setText(R.string.RegistrationLockFragment__incorrect_pin);
         }
@@ -192,6 +198,7 @@ public final class RegistrationLockFragment extends BaseRegistrationFragment {
         public void onIncorrectKbsRegistrationLockPin(@NonNull TokenResponse tokenResponse) {
           cancelSpinning(pinButton);
           pinEntry.getText().clear();
+          enableAndFocusPinEntry();
 
           model.setKeyBackupCurrentToken(tokenResponse);
 
@@ -224,6 +231,7 @@ public final class RegistrationLockFragment extends BaseRegistrationFragment {
         @Override
         public void onRateLimited() {
           cancelSpinning(pinButton);
+          enableAndFocusPinEntry();
 
           new AlertDialog.Builder(requireContext())
                          .setTitle(R.string.RegistrationActivity_too_many_attempts)
@@ -244,6 +252,7 @@ public final class RegistrationLockFragment extends BaseRegistrationFragment {
         @Override
         public void onError() {
           cancelSpinning(pinButton);
+          enableAndFocusPinEntry();
 
           Toast.makeText(requireContext(), R.string.RegistrationActivity_error_connecting_to_service, Toast.LENGTH_LONG).show();
         }
@@ -283,4 +292,13 @@ public final class RegistrationLockFragment extends BaseRegistrationFragment {
       return R.string.RegistrationLockFragment__enter_numeric_pin;
     }
   }
+
+  private void enableAndFocusPinEntry() {
+    pinEntry.setEnabled(true);
+    pinEntry.setFocusable(true);
+
+    if (pinEntry.requestFocus()) {
+      ServiceUtil.getInputMethodManager(pinEntry.getContext()).showSoftInput(pinEntry, 0);
+    }
+  }
 }

app/src/main/res/navigation/registration.xml

@@ -151,6 +151,10 @@
             android:name="timeRemaining"
             app:argType="long" />
 
+        <argument
+            android:name="isV1RegistrationLock"
+            app:argType="boolean" />
+
     </fragment>
 
     <fragment