Block GV1 creation if forced migrations are enabled.

app/src/main/java/org/thoughtcrime/securesms/groups/ui/creategroup/details/AddGroupDetailsFragment.java

@@ -40,6 +40,7 @@ import org.thoughtcrime.securesms.profiles.AvatarHelper;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientId;
 import org.thoughtcrime.securesms.util.BitmapUtil;
+import org.thoughtcrime.securesms.util.FeatureFlags;
 import org.thoughtcrime.securesms.util.ViewUtil;
 import org.thoughtcrime.securesms.util.text.AfterTextChanged;
 import org.thoughtcrime.securesms.util.views.LearnMoreTextView;
@@ -120,10 +121,15 @@ public class AddGroupDetailsFragment extends LoggingFragment {
       toolbar.setTitle(isMms ? R.string.AddGroupDetailsFragment__create_group : R.string.AddGroupDetailsFragment__name_this_group);
     });
     viewModel.getNonGv2CapableMembers().observe(getViewLifecycleOwner(), nonGv2CapableMembers -> {
+      boolean forcedMigration = FeatureFlags.groupsV1ForcedMigration();
+
+      int stringRes = forcedMigration ? R.plurals.AddGroupDetailsFragment__d_members_do_not_support_new_groups_so_this_group_cannot_be_created
+                                      : R.plurals.AddGroupDetailsFragment__d_members_do_not_support_new_groups;
+
       gv2Warning.setVisibility(nonGv2CapableMembers.isEmpty() ? View.GONE : View.VISIBLE);
-      gv2Warning.setText(requireContext().getResources().getQuantityString(R.plurals.AddGroupDetailsFragment__d_members_do_not_support_new_groups, nonGv2CapableMembers.size(), nonGv2CapableMembers.size()));
+      gv2Warning.setText(requireContext().getResources().getQuantityString(stringRes, nonGv2CapableMembers.size(), nonGv2CapableMembers.size()));
       gv2Warning.setLearnMoreVisible(true);
-      gv2Warning.setOnLinkClickListener(v -> NonGv2MemberDialog.showNonGv2Members(requireContext(), nonGv2CapableMembers));
+      gv2Warning.setOnLinkClickListener(v -> NonGv2MemberDialog.showNonGv2Members(requireContext(), nonGv2CapableMembers, forcedMigration));
     });
     viewModel.getAvatar().observe(getViewLifecycleOwner(), avatarBytes -> {
       if (avatarBytes == null) {

app/src/main/java/org/thoughtcrime/securesms/groups/ui/creategroup/details/AddGroupDetailsViewModel.java

@@ -18,6 +18,7 @@ import org.thoughtcrime.securesms.keyvalue.SignalStore;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientId;
 import org.thoughtcrime.securesms.util.DefaultValueLiveData;
+import org.thoughtcrime.securesms.util.FeatureFlags;
 import org.thoughtcrime.securesms.util.SingleLiveEvent;
 import org.thoughtcrime.securesms.util.livedata.LiveDataUtil;
 
@@ -62,7 +63,8 @@ public final class AddGroupDetailsViewModel extends ViewModel {
     });
 
     nonGv2CapableMembers = LiveDataUtil.mapAsync(membersToCheckGv2CapabilityOf, memberList -> repository.checkCapabilities(Stream.of(memberList).map(newGroupCandidate -> newGroupCandidate.getMember().getId()).toList()));
-    canSubmitForm        = LiveDataUtil.combineLatest(isMms, isValidName, (mms, validName) -> mms || validName);
+    canSubmitForm        = FeatureFlags.groupsV1ForcedMigration() ? LiveDataUtil.just(false)
+                                                                  : LiveDataUtil.combineLatest(isMms, isValidName, (mms, validName) -> mms || validName);
 
     repository.resolveMembers(recipientIds, initialMembers::postValue);
   }

app/src/main/java/org/thoughtcrime/securesms/groups/ui/creategroup/dialogs/NonGv2MemberDialog.java

@@ -20,7 +20,7 @@ public final class NonGv2MemberDialog {
   private NonGv2MemberDialog() {
   }
 
-  public static @Nullable Dialog showNonGv2Members(@NonNull Context context, @NonNull List<Recipient> recipients) {
+  public static @Nullable Dialog showNonGv2Members(@NonNull Context context, @NonNull List<Recipient> recipients, boolean forcedMigration) {
     int size = recipients.size();
     if (size == 0) {
       return null;
@@ -32,9 +32,13 @@ public final class NonGv2MemberDialog {
                                                  //  })
                                                  .setPositiveButton(android.R.string.ok, null);
     if (size == 1) {
-      builder.setMessage(context.getString(R.string.NonGv2MemberDialog_single_users_are_non_gv2_capable, recipients.get(0).getDisplayName(context)));
+      int stringRes = forcedMigration ? R.string.NonGv2MemberDialog_single_users_are_non_gv2_capable_forced_migration
+                                      : R.string.NonGv2MemberDialog_single_users_are_non_gv2_capable;
+      builder.setMessage(context.getString(stringRes, recipients.get(0).getDisplayName(context)));
     } else {
-      builder.setMessage(context.getResources().getQuantityString(R.plurals.NonGv2MemberDialog_d_users_are_non_gv2_capable, size, size))
+      int pluralRes = forcedMigration ? R.plurals.NonGv2MemberDialog_d_users_are_non_gv2_capable_forced_migration
+                                      : R.plurals.NonGv2MemberDialog_d_users_are_non_gv2_capable;
+      builder.setMessage(context.getResources().getQuantityString(pluralRes, size, size))
              .setView(R.layout.dialog_multiple_members_non_gv2_capable);
     }
 

app/src/main/java/org/thoughtcrime/securesms/util/FeatureFlags.java

@@ -86,6 +86,7 @@ public final class FeatureFlags {
       MAX_ENVELOPE_SIZE,
       GV1_AUTO_MIGRATE_VERSION,
       GV1_MANUAL_MIGRATE_VERSION,
+      GV1_FORCED_MIGRATE_VERSION,
       GROUP_CALLING_VERSION
   );
 

app/src/main/res/values/strings.xml

@@ -702,6 +702,10 @@
         <item quantity="one">%d member does not support New Groups, so this will be a Legacy Group.</item>
         <item quantity="other">%d members do not support New Groups, so this group will be a Legacy Group.</item>
     </plurals>
+    <plurals name="AddGroupDetailsFragment__d_members_do_not_support_new_groups_so_this_group_cannot_be_created">
+        <item quantity="one">%d member does not support New Groups, so this group cannot be created.</item>
+        <item quantity="other">%d members do not support New Groups, so this group cannot be created.</item>
+    </plurals>
 
     <!-- NonGv2MemberDialog -->
     <string name="NonGv2MemberDialog_single_users_are_non_gv2_capable">A Legacy Group will be created because “%1$s” is using an old version of Signal. You can create a New Style Group with them after they update Signal, or remove them before creating the group.</string>
@@ -709,6 +713,11 @@
         <item quantity="one">A Legacy Group will be created because %1$d member is using an old version of Signal. You can create a New Style Group with them after they update Signal, or remove them before creating the group.</item>
         <item quantity="other">A Legacy Group will be created because %1$d members are using an old version of Signal. You can create a New Style Group with them after they update Signal, or remove them before creating the group.</item>
     </plurals>
+    <string name="NonGv2MemberDialog_single_users_are_non_gv2_capable_forced_migration">This group cannot be created because “%1$s” is using an old version of Signal. You must remove them before creating the group.</string>
+    <plurals name="NonGv2MemberDialog_d_users_are_non_gv2_capable_forced_migration">
+        <item quantity="one">This group cannot be created because %1$d member is using an old version of Signal. You must remove them before creating the group.</item>
+        <item quantity="other">This group cannot be created because %1$d members are using an old version of Signal. You must remove them before creating the group.</item>
+    </plurals>
 
     <!-- ManageGroupActivity -->
     <string name="ManageGroupActivity_disappearing_messages">Disappearing messages</string>