Backlog amount (initial and dynamic) can now be configured (Settings -> behavior...

[quassel.git] / src / client / messagemodel.cpp

diff --git a/src/client/messagemodel.cpp b/src/client/messagemodel.cpp
index 02fc874..82fd71b 100644 (file)
--- a/src/client/messagemodel.cpp
+++ b/src/client/messagemodel.cpp
@@ -20,10 +20,14 @@
 
 #include "messagemodel.h"
 
-#include "message.h"
-
 #include <QEvent>
 
+#include "backlogsettings.h"
+#include "clientbacklogmanager.h"
+#include "client.h"
+#include "message.h"
+#include "networkmodel.h"
+
 class ProcessBufferEvent : public QEvent {
 public:
   inline ProcessBufferEvent() : QEvent(QEvent::User) {}
@@ -66,8 +70,6 @@ bool MessageModel::setData(const QModelIndex &index, const QVariant &value, int
   return false;
 }
 
-
-
 bool MessageModel::insertMessage(const Message &msg, bool fakeMsg) {
   MsgId id = msg.msgId();
   int idx = indexForId(id);
@@ -88,7 +90,7 @@ void MessageModel::insertMessages(const QList<Message> &msglist) {
   int remainingMsgs = msglist.count() - processedMsgs;
   if(remainingMsgs > 0) {
     if(msglist.first().msgId() < msglist.last().msgId()) {
-      // in Order
+      // in Order - we have just successfully processed "processedMsg" messages from the end of the list
       _messageBuffer << msglist.mid(0, remainingMsgs);
     } else {
       _messageBuffer << msglist.mid(processedMsgs);
@@ -151,14 +153,7 @@ void MessageModel::insertMessageGroup(const QList<Message> &msglist) {
     end++;
 
   Q_ASSERT(start == 0 || _messageList[start - 1]->msgId() < msglist.first().msgId());
-
-  if(start < _messageList.count()) { // && _messageList[start]->msgId() <= msglist.last().msgId()) {
-    qDebug() << *(_messageList[start]) << "<=" << msglist.last();
-    qDebug() << start << end << msglist.count() << dayChangeItem << relocatedMsg;
-  }
   Q_ASSERT(start == _messageList.count() || _messageList[start]->msgId() > msglist.last().msgId());
-
-
   beginInsertRows(QModelIndex(), start, end);
   int pos = start;
   foreach(Message msg, msglist) {
@@ -176,13 +171,21 @@ void MessageModel::insertMessageGroup(const QList<Message> &msglist) {
 }
 
 int MessageModel::insertMessagesGracefully(const QList<Message> &msglist) {
+  /* short description:
+   * 1) first we check where the message with the highest msgId from msglist would be inserted
+   * 2) check that position for dupe
+   * 3) determine the messageId of the preceeding msg
+   * 4) insert as many msgs from msglist with with msgId larger then the just determined id
+   *    those messages are automatically less then the msg of the position we just determined in 1)
+   */
   bool inOrder = (msglist.first().msgId() < msglist.last().msgId());
   // depending on the order we have to traverse from the front to the back or vice versa
 
   QList<Message> grouplist;
   MsgId id;
   MsgId dupeId;
-  int dupeCount = 0;
+  int processedMsgs = 1; // we know the list isn't empty, so we at least process one message
+  int idx;
   bool fastForward = false;
   QList<Message>::const_iterator iter;
   if(inOrder) {
@@ -192,7 +195,7 @@ int MessageModel::insertMessagesGracefully(const QList<Message> &msglist) {
     iter = msglist.constBegin();
   }
 
-  int idx = indexForId((*iter).msgId());
+  idx = indexForId((*iter).msgId());
   if(idx >= 0 && !_messageList.isEmpty())
     dupeId = _messageList[idx]->msgId();
 
@@ -205,8 +208,6 @@ int MessageModel::insertMessagesGracefully(const QList<Message> &msglist) {
 
   if((*iter).msgId() != dupeId)
     grouplist << *iter;
-  else
-    dupeCount++;
 
   if(!inOrder)
     iter++;
@@ -217,7 +218,13 @@ int MessageModel::insertMessagesGracefully(const QList<Message> &msglist) {
 
       if(!fastForward && (*iter).msgId() < id)
        break;
+      processedMsgs++;
 
+      if(grouplist.isEmpty()) { // as long as we don't have a starting point, we have to update the dupeId
+       idx = indexForId((*iter).msgId());
+       if(idx >= 0 && !_messageList.isEmpty())
+         dupeId = _messageList[idx]->msgId();
+      }
       if((*iter).msgId() != dupeId) {
        if(!grouplist.isEmpty()) {
          QDateTime nextTs = grouplist.value(0).timestamp();
@@ -232,19 +239,23 @@ int MessageModel::insertMessagesGracefully(const QList<Message> &msglist) {
            Message dayChangeMsg = Message::ChangeOfDay(nextTs);
            dayChangeMsg.setMsgId((*iter).msgId());
            grouplist.prepend(dayChangeMsg);
-           dupeCount--;
          }
        }
+       dupeId = (*iter).msgId();
        grouplist.prepend(*iter);
-      } else {
-       dupeCount++;
       }
     }
   } else {
     while(iter != msglist.constEnd()) {
       if(!fastForward && (*iter).msgId() < id)
        break;
+      processedMsgs++;
 
+      if(grouplist.isEmpty()) { // as long as we don't have a starting point, we have to update the dupeId
+       idx = indexForId((*iter).msgId());
+       if(idx >= 0 && !_messageList.isEmpty())
+         dupeId = _messageList[idx]->msgId();
+      }
       if((*iter).msgId() != dupeId) {
        if(!grouplist.isEmpty()) {
          QDateTime nextTs = grouplist.value(0).timestamp();
@@ -259,20 +270,18 @@ int MessageModel::insertMessagesGracefully(const QList<Message> &msglist) {
            Message dayChangeMsg = Message::ChangeOfDay(nextTs);
            dayChangeMsg.setMsgId((*iter).msgId());
            grouplist.prepend(dayChangeMsg);
-           dupeCount--;
          }
        }
+       dupeId = (*iter).msgId();
        grouplist.prepend(*iter);
-      } else {
-       dupeCount++;
       }
-
       iter++;
     }
   }
 
-  insertMessageGroup(grouplist);
-  return grouplist.count() + dupeCount;
+  if(!grouplist.isEmpty())
+    insertMessageGroup(grouplist);
+  return processedMsgs;
 }
 
 void MessageModel::customEvent(QEvent *event) {
@@ -300,10 +309,9 @@ void MessageModel::clear() {
   qDeleteAll(_messageList);
   _messageList.clear();
   endRemoveRows();
+  _messagesWaiting.clear();
 }
 
-
-
 // returns index of msg with given Id or of the next message after that (i.e., the index where we'd insert this msg)
 int MessageModel::indexForId(MsgId id) {
   if(_messageList.isEmpty() || id <= _messageList.value(0)->msgId())
@@ -338,8 +346,38 @@ void MessageModel::changeOfDay() {
   _nextDayChange = _nextDayChange.addSecs(86400);
 }
 
-/**********************************************************************************/
+void MessageModel::requestBacklog(BufferId bufferId) {
+  if(_messagesWaiting.contains(bufferId))
+    return;
+
+  BacklogSettings backlogSettings;
+  int requestCount = backlogSettings.dynamicBacklogAmount();
+
+  for(int i = 0; i < _messageList.count(); i++) {
+    if(_messageList.at(i)->bufferId() == bufferId) {
+      _messagesWaiting[bufferId] = requestCount;
+      Client::backlogManager()->emitMessagesRequested(tr("Requesting %1 messages from backlog for buffer %2:%3")
+                                                     .arg(requestCount)
+                                                     .arg(Client::networkModel()->networkName(bufferId))
+                                                     .arg(Client::networkModel()->bufferName(bufferId)));
+      Client::backlogManager()->requestBacklog(bufferId, requestCount, _messageList.at(i)->msgId().toInt());
+      return;
+    }
+  }
+}
+
+void MessageModel::messagesReceived(BufferId bufferId, int count) {
+  if(!_messagesWaiting.contains(bufferId))
+    return;
+
+  _messagesWaiting[bufferId] -= count;
+  if(_messagesWaiting[bufferId] <= 0)
+    _messagesWaiting.remove(bufferId);
+}
 
+// ========================================
+//  MessageModelItem
+// ========================================
 MessageModelItem::MessageModelItem(const Message &msg) :
   _timestamp(msg.timestamp()),
   _msgId(msg.msgId()),