Leave group on swiping

res/values/strings.xml

@@ -1662,10 +1662,13 @@
     <string name="session_restore_banner_dismiss_button_title">Dismiss</string>
     <string name="session_restore_banner_restore_button_title">Restore</string>
 
-    <!-- Loki -->
-
     <!-- Session -->
     <string name="activity_register_public_key_copied_message">Copied to clipboard</string>
     <!-- Session -->
 
+    <!-- Home Activity -->
+    <string name="activity_home_conversation_deleted">Conversation deleted</string>
+    <string name="activity_home_leave_group_title">Are you sure you want to leave the group?</string>
+    <string name="activity_home_delete_conversation_title">Are you sure you want to delete the conversation?</string>
+
 </resources>

src/org/thoughtcrime/securesms/conversation/ConversationActivity.java

@@ -1156,21 +1156,7 @@ public class ConversationActivity extends PassphraseRequiredActionBarActivity
     builder.setMessage(getString(R.string.ConversationActivity_are_you_sure_you_want_to_leave_this_group));
     builder.setPositiveButton(R.string.yes, (dialog, which) -> {
       Recipient                           groupRecipient = getRecipient();
-      long                                threadId       = DatabaseFactory.getThreadDatabase(this).getThreadIdFor(groupRecipient);
-      Optional<OutgoingGroupMediaMessage> leaveMessage   = GroupUtil.createGroupLeaveMessage(this, groupRecipient);
-
-      if (threadId != -1 && leaveMessage.isPresent()) {
-        MessageSender.send(this, leaveMessage.get(), threadId, false, null);
-
-        // We need to remove the master device from the group
-        String masterHexEncodedPublicKey = TextSecurePreferences.getMasterHexEncodedPublicKey(this);
-        String localNumber = masterHexEncodedPublicKey != null ? masterHexEncodedPublicKey : TextSecurePreferences.getLocalNumber(this);
-
-        GroupDatabase groupDatabase = DatabaseFactory.getGroupDatabase(this);
-        String        groupId       = groupRecipient.getAddress().toGroupString();
-        groupDatabase.setActive(groupId, false);
-        groupDatabase.remove(groupId, Address.fromSerialized(localNumber));
-
+      if (GroupUtil.leaveGroup(this, groupRecipient)) {
         initializeEnabledCheck();
       } else {
         Toast.makeText(this, R.string.ConversationActivity_error_leaving_group, Toast.LENGTH_LONG).show();

src/org/thoughtcrime/securesms/loki/redesign/activities/HomeActivity.kt

@@ -1,6 +1,7 @@
 package org.thoughtcrime.securesms.loki.redesign.activities
 
 import android.annotation.SuppressLint
+import android.app.AlertDialog
 import android.arch.lifecycle.Observer
 import android.content.Intent
 import android.database.Cursor
@@ -20,6 +21,7 @@ import android.text.Spannable
 import android.text.SpannableString
 import android.text.style.ForegroundColorSpan
 import android.view.View
+import android.widget.Toast
 import kotlinx.android.synthetic.main.activity_home.*
 import network.loki.messenger.R
 import org.thoughtcrime.securesms.ApplicationContext
@@ -36,6 +38,7 @@ import org.thoughtcrime.securesms.loki.redesign.views.SeedReminderViewDelegate
 import org.thoughtcrime.securesms.mms.GlideApp
 import org.thoughtcrime.securesms.mms.GlideRequests
 import org.thoughtcrime.securesms.notifications.MessageNotifier
+import org.thoughtcrime.securesms.util.GroupUtil
 import org.thoughtcrime.securesms.util.TextSecurePreferences
 import kotlin.math.abs
 
@@ -230,8 +233,8 @@ class HomeActivity : PassphraseRequiredActionBarActivity, ConversationClickListe
         @SuppressLint("StaticFieldLeak")
         override fun onSwiped(viewHolder: RecyclerView.ViewHolder, direction: Int) {
             val threadID = (viewHolder as HomeAdapter.ViewHolder).view.thread!!.threadId
+            val recipient = (viewHolder as HomeAdapter.ViewHolder).view.thread!!.recipient
             val threadDatabase = DatabaseFactory.getThreadDatabase(activity)
-            threadDatabase.archiveConversation(threadID)
             val deleteThread = object : Runnable {
 
                 override fun run() {
@@ -243,21 +246,44 @@ class HomeActivity : PassphraseRequiredActionBarActivity, ConversationClickListe
                             apiDatabase.removeLastDeletionServerID(publicChat.channel, publicChat.server)
                             ApplicationContext.getInstance(activity).lokiPublicChatAPI!!.leave(publicChat.channel, publicChat.server)
                         }
+
                         threadDatabase.deleteConversation(threadID)
+
                         MessageNotifier.updateNotification(activity)
                     }
                 }
             }
-            val handler = Handler()
-            handler.postDelayed(deleteThread, 5000)
-            val snackbar = Snackbar.make(activity.contentView, "Conversation Deleted", Snackbar.LENGTH_LONG)
-            snackbar.setAction("Undo") {
-                threadDatabase.unarchiveConversation(threadID)
-                handler.removeCallbacks(deleteThread)
-                animate(viewHolder, 0.0f)
+
+            val message = if (recipient.isGroupRecipient) R.string.activity_home_leave_group_title else R.string.activity_home_delete_conversation_title
+            val alertDialogBuilder = AlertDialog.Builder(activity)
+            alertDialogBuilder.setMessage(message)
+            alertDialogBuilder.setPositiveButton(R.string.yes) { _, _ ->
+                val isGroup = recipient.isGroupRecipient
+
+                // If we are deleting a group and it's active
+                // We need to send a leave message
+                if (isGroup && DatabaseFactory.getGroupDatabase(activity).isActive(recipient.address.toGroupString())) {
+                    if (!GroupUtil.leaveGroup(activity, recipient)) {
+                        Toast.makeText(activity, R.string.ConversationActivity_error_leaving_group, Toast.LENGTH_LONG).show()
+                        clearView(activity.recyclerView, viewHolder)
+                        return@setPositiveButton
+                    }
+                }
+
+                // Archive and forcefully delete the conversation in 10 seconds
+                threadDatabase.archiveConversation(threadID)
+                val handler = Handler()
+                handler.postDelayed(deleteThread, 10000)
+
+                // Notify the user
+                val snackbarText = if (isGroup) R.string.MessageRecord_left_group else R.string.activity_home_conversation_deleted
+                val snackbar = Snackbar.make(activity.contentView, snackbarText, Snackbar.LENGTH_LONG)
+                snackbar.show()
+            }
+            alertDialogBuilder.setNegativeButton(R.string.no) { _, _ ->
+                clearView(activity.recyclerView, viewHolder)
             }
-            snackbar.setActionTextColor(activity.resources.getColorWithID(R.color.accent, activity.theme))
-            snackbar.show()
+            alertDialogBuilder.show()
         }
 
         override fun onChildDraw(c: Canvas, recyclerView: RecyclerView, viewHolder: RecyclerView.ViewHolder, dx: Float, dy: Float, actionState: Int, isCurrentlyActive: Boolean) {

src/org/thoughtcrime/securesms/util/GroupUtil.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 import android.support.annotation.WorkerThread;
+import android.widget.Toast;
 
 import com.google.protobuf.ByteString;
 
@@ -16,6 +17,7 @@ import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.mms.OutgoingGroupMediaMessage;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.RecipientModifiedListener;
+import org.thoughtcrime.securesms.sms.MessageSender;
 import org.whispersystems.libsignal.util.guava.Optional;
 import org.whispersystems.signalservice.api.messages.SignalServiceGroup;
 
@@ -111,6 +113,27 @@ public class GroupUtil {
     return Optional.of(new OutgoingGroupMediaMessage(groupRecipient, groupContext, null, System.currentTimeMillis(), 0, null, Collections.emptyList(), Collections.emptyList()));
   }
 
+  public static boolean leaveGroup(@NonNull Context context, Recipient groupRecipient) {
+    long                                threadId       = DatabaseFactory.getThreadDatabase(context).getThreadIdFor(groupRecipient);
+    Optional<OutgoingGroupMediaMessage> leaveMessage   = GroupUtil.createGroupLeaveMessage(context, groupRecipient);
+
+    if (threadId < 0 || !leaveMessage.isPresent()) {
+      return false;
+    }
+
+    MessageSender.send(context, leaveMessage.get(), threadId, false, null);
+
+    // We need to remove the master device from the group
+    String masterHexEncodedPublicKey = TextSecurePreferences.getMasterHexEncodedPublicKey(context);
+    String localNumber = masterHexEncodedPublicKey != null ? masterHexEncodedPublicKey : TextSecurePreferences.getLocalNumber(context);
+
+    GroupDatabase groupDatabase = DatabaseFactory.getGroupDatabase(context);
+    String        groupId       = groupRecipient.getAddress().toGroupString();
+    groupDatabase.setActive(groupId, false);
+    groupDatabase.remove(groupId, Address.fromSerialized(localNumber));
+
+    return true;
+  }
 
   public static @NonNull GroupDescription getDescription(@NonNull Context context, @Nullable String encodedGroup) {
     if (encodedGroup == null) {