From 4f612fc9bc50e8665c11cab59f502ace854a4a9f Mon Sep 17 00:00:00 2001
From: Christian Schneppe <christian@pix-art.de>
Date: Mon, 9 Jul 2018 22:58:50 +0200
Subject: integrated locally message deletion from #208

thanks @acw81
---
 src/main/java/de/pixart/messenger/entities/Conversation.java |  4 ++++
 .../de/pixart/messenger/persistance/DatabaseBackend.java     | 11 +++++++++++
 .../de/pixart/messenger/services/XmppConnectionService.java  | 10 ++++++++++
 .../java/de/pixart/messenger/ui/ConversationFragment.java    | 12 ++++++++++++
 4 files changed, 37 insertions(+)

(limited to 'src/main/java/de/pixart/messenger')

diff --git a/src/main/java/de/pixart/messenger/entities/Conversation.java b/src/main/java/de/pixart/messenger/entities/Conversation.java
index 18a20532a..fe89009d3 100644
--- a/src/main/java/de/pixart/messenger/entities/Conversation.java
+++ b/src/main/java/de/pixart/messenger/entities/Conversation.java
@@ -134,6 +134,10 @@ public class Conversation extends AbstractEntity implements Blockable, Comparabl
         this.messagesLeftOnServer = value;
     }
 
+    public void deleteMessage(Message message) {
+        this.messages.remove(message);
+    }
+
     public Message getFirstUnreadMessage() {
         Message first = null;
         synchronized (this.messages) {
diff --git a/src/main/java/de/pixart/messenger/persistance/DatabaseBackend.java b/src/main/java/de/pixart/messenger/persistance/DatabaseBackend.java
index 62b15c816..94710b86e 100644
--- a/src/main/java/de/pixart/messenger/persistance/DatabaseBackend.java
+++ b/src/main/java/de/pixart/messenger/persistance/DatabaseBackend.java
@@ -917,6 +917,17 @@ public class DatabaseBackend extends SQLiteOpenHelper {
         Log.d(Config.LOGTAG, account.getJid().asBareJid() + ": persisted roster in " + duration + "ms");
     }
 
+    public void deleteMessageInConversation(Message message) {
+        long start = SystemClock.elapsedRealtime();
+        final SQLiteDatabase db = this.getWritableDatabase();
+        db.beginTransaction();
+        String[] args = {message.getUuid()};
+        db.delete("messages_index", "uuid =?", args);
+        db.setTransactionSuccessful();
+        db.endTransaction();
+        Log.d(Config.LOGTAG, "deleted single message in " + (SystemClock.elapsedRealtime() - start) + "ms");
+    }
+
     public void deleteMessagesInConversation(Conversation conversation) {
         long start = SystemClock.elapsedRealtime();
         final SQLiteDatabase db = this.getWritableDatabase();
diff --git a/src/main/java/de/pixart/messenger/services/XmppConnectionService.java b/src/main/java/de/pixart/messenger/services/XmppConnectionService.java
index e149821ec..f6fa55a3b 100644
--- a/src/main/java/de/pixart/messenger/services/XmppConnectionService.java
+++ b/src/main/java/de/pixart/messenger/services/XmppConnectionService.java
@@ -3959,6 +3959,16 @@ public class XmppConnectionService extends Service {
         updateConversationUi();
     }
 
+    public void deleteMessage(final Conversation conversation, Message message) {
+        conversation.deleteMessage(message);
+        Runnable runnable = () -> {
+            databaseBackend.deleteMessageInConversation(message);
+            databaseBackend.updateConversation(conversation);
+
+        };
+        mDatabaseWriterExecutor.execute(runnable);
+    }
+
     public void clearConversationHistory(final Conversation conversation) {
         final long clearDate;
         final String reference;
diff --git a/src/main/java/de/pixart/messenger/ui/ConversationFragment.java b/src/main/java/de/pixart/messenger/ui/ConversationFragment.java
index efb342f4d..f32aa26ed 100644
--- a/src/main/java/de/pixart/messenger/ui/ConversationFragment.java
+++ b/src/main/java/de/pixart/messenger/ui/ConversationFragment.java
@@ -1299,6 +1299,7 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
             MenuItem quoteMessage = menu.findItem(R.id.quote_message);
             MenuItem retryDecryption = menu.findItem(R.id.retry_decryption);
             MenuItem correctMessage = menu.findItem(R.id.correct_message);
+            MenuItem deleteMessage = menu.findItem(R.id.delete_message);
             MenuItem shareWith = menu.findItem(R.id.share_with);
             MenuItem sendAgain = menu.findItem(R.id.send_again);
             MenuItem copyUrl = menu.findItem(R.id.copy_url);
@@ -1309,6 +1310,7 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
             if (!m.isFileOrImage() && !encrypted && !m.isGeoUri() && !m.treatAsDownloadable()) {
                 copyMessage.setVisible(true);
                 quoteMessage.setVisible(MessageUtils.prepareQuote(m).length() > 0);
+                deleteMessage.setVisible(true);
                 String body = m.getMergedBody().toString();
                 if (ShareUtil.containsXmppUri(body)) {
                     copyLink.setTitle(R.string.copy_jabber_id);
@@ -1397,6 +1399,9 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
             case R.id.retry_decryption:
                 retryDecryption(selectedMessage);
                 return true;
+            case R.id.delete_message:
+                deleteMessage(selectedMessage);
+                return true;
             case R.id.delete_file:
                 deleteFile(selectedMessage);
                 return true;
@@ -1847,6 +1852,13 @@ public class ConversationFragment extends XmppFragment implements EditMessage.Ke
         builder.create().show();
     }
 
+    private void deleteMessage(Message message) {
+        final Conversation conversation = (Conversation) message.getConversation();
+        activity.xmppConnectionService.deleteMessage(conversation, message);
+        activity.onConversationsListItemUpdated();
+        refresh();
+    }
+
     private void deleteFile(Message message) {
         if (activity.xmppConnectionService.getFileBackend().deleteFile(message)) {
             message.setTransferable(new TransferablePlaceholder(Transferable.STATUS_DELETED));
-- 
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