Restrict SMS in multishare.

app/src/main/java/org/thoughtcrime/securesms/contacts/ContactsCursorLoader.java

@@ -63,6 +63,7 @@ public class ContactsCursorLoader extends CursorLoader {
     public static final int FLAG_SELF            = 1 << 4;
     public static final int FLAG_BLOCK           = 1 << 5;
     public static final int FLAG_HIDE_GROUPS_V1  = 1 << 5;
+    public static final int FLAG_HIDE_NEW        = 1 << 6;
     public static final int FLAG_ALL             = FLAG_PUSH |  FLAG_SMS | FLAG_ACTIVE_GROUPS | FLAG_INACTIVE_GROUPS | FLAG_SELF;
   }
 
@@ -135,8 +136,11 @@ public class ContactsCursorLoader extends CursorLoader {
 
     addContactsSection(cursorList);
     addGroupsSection(cursorList);
-    addNewNumberSection(cursorList);
-    addUsernameSearchSection(cursorList);
+
+    if (!hideNewNumberOrUsername(mode)) {
+      addNewNumberSection(cursorList);
+      addUsernameSearchSection(cursorList);
+    }
 
     return cursorList;
   }
@@ -429,6 +433,10 @@ public class ContactsCursorLoader extends CursorLoader {
     return flagSet(mode, DisplayMode.FLAG_HIDE_GROUPS_V1);
   }
 
+  private static boolean hideNewNumberOrUsername(int mode) {
+    return flagSet(mode, DisplayMode.FLAG_HIDE_NEW);
+  }
+
   private static boolean flagSet(int mode, int flag) {
     return (mode & flag) > 0;
   }

app/src/main/java/org/thoughtcrime/securesms/sharing/ShareActivity.java

@@ -98,6 +98,7 @@ public class ShareActivity extends PassphraseRequiredActivity
   private ImageView                    searchAction;
   private View                         shareConfirm;
   private ShareSelectionAdapter        adapter;
+  private boolean                      disallowMultiShare;
 
   private ShareViewModel viewModel;
 
@@ -173,7 +174,12 @@ public class ShareActivity extends PassphraseRequiredActivity
 
   @Override
   public boolean onBeforeContactSelected(Optional<RecipientId> recipientId, String number) {
-    return viewModel.onContactSelected(new ShareContact(recipientId, number));
+    if (disallowMultiShare) {
+      Toast.makeText(this, R.string.ShareActivity__sharing_to_multiple_chats_is, Toast.LENGTH_LONG).show();
+      return false;
+    } else {
+      return viewModel.onContactSelected(new ShareContact(recipientId, number));
+    }
   }
 
   @Override
@@ -203,7 +209,7 @@ public class ShareActivity extends PassphraseRequiredActivity
 
   private void initializeIntent() {
     if (!getIntent().hasExtra(ContactSelectionListFragment.DISPLAY_MODE)) {
-      int mode = DisplayMode.FLAG_PUSH | DisplayMode.FLAG_ACTIVE_GROUPS | DisplayMode.FLAG_SELF;
+      int mode = DisplayMode.FLAG_PUSH | DisplayMode.FLAG_ACTIVE_GROUPS | DisplayMode.FLAG_SELF | DisplayMode.FLAG_HIDE_NEW;
 
       if (TextSecurePreferences.isSmsEnabled(this) && viewModel.isExternalShare())  {
         mode |= DisplayMode.FLAG_SMS;
@@ -269,6 +275,42 @@ public class ShareActivity extends PassphraseRequiredActivity
         animateInSelection();
       }
     });
+
+    viewModel.getSmsShareRestriction().observe(this, smsShareRestriction -> {
+      final int displayMode;
+
+      switch (smsShareRestriction) {
+        case NO_RESTRICTIONS:
+          disallowMultiShare = false;
+          displayMode        = getIntent().getIntExtra(ContactSelectionListFragment.DISPLAY_MODE, -1);
+
+          if (displayMode == -1) {
+            Log.w(TAG, "DisplayMode not set yet.");
+            return;
+          }
+
+          if (TextSecurePreferences.isSmsEnabled(this) && viewModel.isExternalShare() && (displayMode & DisplayMode.FLAG_SMS) == 0) {
+            getIntent().putExtra(ContactSelectionListFragment.DISPLAY_MODE, displayMode | DisplayMode.FLAG_SMS);
+            contactsFragment.setQueryFilter(null);
+          }
+          break;
+        case DISALLOW_SMS_CONTACTS:
+          disallowMultiShare = false;
+          displayMode        = getIntent().getIntExtra(ContactSelectionListFragment.DISPLAY_MODE, -1);
+
+          if (displayMode == -1) {
+            Log.w(TAG, "DisplayMode not set yet.");
+            return;
+          }
+
+          getIntent().putExtra(ContactSelectionListFragment.DISPLAY_MODE, displayMode & ~DisplayMode.FLAG_SMS);
+          contactsFragment.setQueryFilter(null);
+          break;
+        case DISALLOW_MULTI_SHARE:
+          disallowMultiShare = true;
+          break;
+      }
+    });
   }
 
   private void initializeViewModel() {

app/src/main/java/org/thoughtcrime/securesms/sharing/ShareViewModel.java

@@ -5,6 +5,7 @@ import android.net.Uri;
 
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
+import androidx.annotation.WorkerThread;
 import androidx.lifecycle.LiveData;
 import androidx.lifecycle.MutableLiveData;
 import androidx.lifecycle.Transformations;
@@ -16,8 +17,10 @@ import com.annimon.stream.Stream;
 import org.signal.core.util.logging.Log;
 import org.thoughtcrime.securesms.dependencies.ApplicationDependencies;
 import org.thoughtcrime.securesms.providers.BlobProvider;
+import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.util.DefaultValueLiveData;
 import org.thoughtcrime.securesms.util.MappingModel;
+import org.thoughtcrime.securesms.util.livedata.LiveDataUtil;
 import org.whispersystems.libsignal.util.guava.Optional;
 
 import java.util.Collections;
@@ -33,15 +36,17 @@ public class ShareViewModel extends ViewModel {
   private final ShareRepository                      shareRepository;
   private final MutableLiveData<Optional<ShareData>> shareData;
   private final MutableLiveData<Set<ShareContact>>   selectedContacts;
+  private final LiveData<SmsShareRestriction>        smsShareRestriction;
 
   private boolean mediaUsed;
   private boolean externalShare;
 
   private ShareViewModel() {
-    this.context          = ApplicationDependencies.getApplication();
-    this.shareRepository  = new ShareRepository();
-    this.shareData        = new MutableLiveData<>();
-    this.selectedContacts = new DefaultValueLiveData<>(Collections.emptySet());
+    this.context             = ApplicationDependencies.getApplication();
+    this.shareRepository     = new ShareRepository();
+    this.shareData           = new MutableLiveData<>();
+    this.selectedContacts    = new DefaultValueLiveData<>(Collections.emptySet());
+    this.smsShareRestriction = Transformations.map(selectedContacts, this::updateShareRestriction);
   }
 
   void onSingleMediaShared(@NonNull Uri uri, @Nullable String mimeType) {
@@ -90,6 +95,10 @@ public class ShareViewModel extends ViewModel {
                                                               .toList());
   }
 
+  @NonNull LiveData<SmsShareRestriction> getSmsShareRestriction() {
+    return Transformations.distinctUntilChanged(smsShareRestriction);
+  }
+
   void onNonExternalShare() {
     externalShare = false;
   }
@@ -116,6 +125,23 @@ public class ShareViewModel extends ViewModel {
     }
   }
 
+  private @NonNull SmsShareRestriction updateShareRestriction(@NonNull Set<ShareContact> shareContacts) {
+    if (shareContacts.isEmpty()) {
+      return SmsShareRestriction.NO_RESTRICTIONS;
+    } else if (shareContacts.size() == 1) {
+      ShareContact shareContact = shareContacts.iterator().next();
+      Recipient    recipient    = Recipient.live(shareContact.getRecipientId().get()).get();
+
+      if (!recipient.isRegistered() || recipient.isForceSmsSelection()) {
+        return SmsShareRestriction.DISALLOW_MULTI_SHARE;
+      } else {
+        return SmsShareRestriction.DISALLOW_SMS_CONTACTS;
+      }
+    } else {
+      return SmsShareRestriction.DISALLOW_SMS_CONTACTS;
+    }
+  }
+
   public static class Factory extends ViewModelProvider.NewInstanceFactory {
     @Override
     public @NonNull<T extends ViewModel> T create(@NonNull Class<T> modelClass) {
@@ -123,4 +149,10 @@ public class ShareViewModel extends ViewModel {
       return modelClass.cast(new ShareViewModel());
     }
   }
+
+  enum SmsShareRestriction {
+    NO_RESTRICTIONS,
+    DISALLOW_SMS_CONTACTS,
+    DISALLOW_MULTI_SHARE
+  }
 }

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

@@ -2827,6 +2827,7 @@
     <string name="ShareActivity__share">Share</string>
     <string name="ShareActivity__send">Send</string>
     <string name="ShareActivity__s_comma">%1$s,</string>
+    <string name="ShareActivity__sharing_to_multiple_chats_is">Sharing to multiple chats is only supported for Signal messages</string>
 
     <!-- MultiShareDialogs -->
     <string name="MultiShareDialogs__failed_to_send_to_some_users">Failed to send to some users</string>