Add message status indicator

app/src/main/java/org/thoughtcrime/securesms/conversation/v2/messages/VisibleMessageView.kt

@@ -12,10 +12,14 @@ import android.util.AttributeSet
 import android.util.Log
 import android.view.*
 import android.widget.LinearLayout
+import androidx.annotation.ColorRes
+import androidx.annotation.DrawableRes
 import androidx.core.content.ContextCompat
 import androidx.core.graphics.withClip
 import androidx.core.view.isVisible
+import kotlinx.android.synthetic.main.view_conversation.view.*
 import kotlinx.android.synthetic.main.view_visible_message.view.*
+import kotlinx.android.synthetic.main.view_visible_message.view.profilePictureView
 import network.loki.messenger.R
 import org.session.libsession.messaging.contacts.Contact.ContactContext
 import org.session.libsession.utilities.ViewUtil
@@ -113,6 +117,17 @@ class VisibleMessageView : LinearLayout {
         // Gravity
         val gravity = if (message.isOutgoing) Gravity.RIGHT else Gravity.LEFT
         mainContainer.gravity = gravity or Gravity.BOTTOM
+        // Message status indicator
+        val iconID = getMessageStatusImage(message)
+        if (iconID != null) {
+            messageStatusImageView.setImageResource(iconID)
+        }
+        if (message.isOutgoing) {
+            val lastMessageID = DatabaseFactory.getMmsSmsDatabase(context).getLastMessageID(message.threadId)
+            messageStatusImageView.isVisible = !message.isSent || message.id == lastMessageID
+        } else {
+            messageStatusImageView.isVisible = false
+        }
         // Populate content view
         messageContentView.bind(message, isStartOfMessageCluster, isEndOfMessageCluster, glide)
     }
@@ -144,6 +159,16 @@ class VisibleMessageView : LinearLayout {
         }
     }
 
+    private fun getMessageStatusImage(message: MessageRecord): Int? {
+        when {
+            !message.isOutgoing -> return null
+            message.isFailed -> return R.drawable.ic_error
+            message.isPending -> return R.drawable.ic_circle_dot_dot_dot
+            message.isRead -> return R.drawable.ic_filled_circle_check
+            else -> return R.drawable.ic_circle_check
+        }
+    }
+
     private fun handleIsSelectedChanged() {
         background = if (snIsSelected) {
             ColorDrawable(context.resources.getColorWithID(R.color.message_selected, context.theme))

app/src/main/java/org/thoughtcrime/securesms/database/MmsSmsDatabase.java

@@ -129,7 +129,17 @@ public class MmsSmsDatabase extends Database {
     String order     = MmsSmsColumns.NORMALIZED_DATE_RECEIVED + " DESC";
     String selection = MmsSmsColumns.THREAD_ID + " = " + threadId;
 
-    return  queryTables(PROJECTION, selection, order, "1");
+    return queryTables(PROJECTION, selection, order, "1");
+  }
+
+  public long getLastMessageID(long threadId) {
+    String order     = MmsSmsColumns.NORMALIZED_DATE_SENT + " DESC";
+    String selection = MmsSmsColumns.THREAD_ID + " = " + threadId;
+
+    try (Cursor cursor = queryTables(PROJECTION, selection, order, "1")) {
+      cursor.moveToFirst();
+      return cursor.getLong(cursor.getColumnIndex(MmsSmsColumns.ID));
+    }
   }
 
   public Cursor getUnread() {

app/src/main/java/org/thoughtcrime/securesms/database/model/DisplayRecord.java

@@ -63,33 +63,23 @@ public abstract class DisplayRecord {
     return body == null ? "" : body;
   }
   public abstract SpannableString getDisplayBody(@NonNull Context context);
-  public Recipient getRecipient() {
-    return recipient;
-  }
-  public long getDateSent() {
-    return dateSent;
-  }
-  public long getDateReceived() {
-    return dateReceived;
-  }
-  public long getThreadId() {
-    return threadId;
-  }
-  public int getDeliveryStatus() {
-    return deliveryStatus;
-  }
-  public int getDeliveryReceiptCount() {
-    return deliveryReceiptCount;
-  }
-  public int getReadReceiptCount() {
-    return readReceiptCount;
-  }
+  public Recipient getRecipient() { return recipient; }
+  public long getDateSent() { return dateSent; }
+  public long getDateReceived() { return dateReceived; }
+  public long getThreadId() { return threadId; }
+  public int getDeliveryStatus() { return deliveryStatus; }
+  public int getDeliveryReceiptCount() { return deliveryReceiptCount; }
+  public int getReadReceiptCount() { return readReceiptCount; }
 
   public boolean isDelivered() {
     return (deliveryStatus >= SmsDatabase.Status.STATUS_COMPLETE
       && deliveryStatus < SmsDatabase.Status.STATUS_PENDING) || deliveryReceiptCount > 0;
   }
 
+  public boolean isSent() {
+    return !isFailed() && !isPending();
+  }
+
   public boolean isFailed() {
     return MmsSmsColumns.Types.isFailedMessageType(type)
       || MmsSmsColumns.Types.isPendingSecureSmsFallbackType(type)