src/uisupport/tabcompleter.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005/06 by the Quassel Project                          *
   3  *   devel@quassel-irc.org                                                 *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) version 3.                                           *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 #include "tabcompleter.h"
  22
  23 #include "inputline.h"
  24 #include "client.h"
  25 #include "buffermodel.h"
  26 #include "networkmodel.h"
  27 #include "network.h"
  28 #include "ircchannel.h"
  29 #include "ircuser.h"
  30
  31 TabCompleter::TabCompleter(InputLine *inputLine_)
  32   : QObject(inputLine_),
  33     inputLine(inputLine_),
  34     enabled(false),
  35     nickSuffix(": ")
  36 {
  37 }
  38
  39 void TabCompleter::buildCompletionList() {
  40   completionList.clear();
  41   nextCompletion = completionList.begin();
  42   // this is the first time tab is pressed -> build up the completion list and it's iterator
  43   QModelIndex currentIndex = Client::bufferModel()->currentIndex();
  44   if(!currentIndex.data(NetworkModel::BufferIdRole).isValid())
  45     return;
  46
  47   NetworkId networkId = currentIndex.data(NetworkModel::NetworkIdRole).value<NetworkId>();
  48   QString channelName = currentIndex.sibling(currentIndex.row(), 0).data().toString();
  49
  50   const Network *network = Client::network(networkId);
  51   if(!network)
  52     return;
  53
  54   IrcChannel *channel = network->ircChannel(channelName);
  55   if(!channel)
  56     return;
  57
  58   disconnect(this, SLOT(ircUserJoinedOrParted(IrcUser *)));
  59   connect(channel, SIGNAL(ircUserJoined(IrcUser *)),
  60           this, SLOT(ircUserJoinedOrParted(IrcUser *)));
  61   connect(channel, SIGNAL(ircUserParted(IrcUser *)),
  62           this, SLOT(ircUserJoinedOrParted(IrcUser *)));
  63
  64   completionList.clear();
  65   QString tabAbbrev = inputLine->text().left(inputLine->cursorPosition()).section(' ',-1,-1);
  66   completionList.clear();
  67   foreach(IrcUser *ircUser, channel->ircUsers()) {
  68     if(ircUser->nick().toLower().startsWith(tabAbbrev.toLower())) {
  69       completionList << ircUser->nick();
  70     }
  71   }
  72   completionList.sort();
  73   nextCompletion = completionList.begin();
  74   lastCompletionLength = tabAbbrev.length();
  75 }
  76
  77 void TabCompleter::ircUserJoinedOrParted(IrcUser *ircUser) {
  78   Q_UNUSED(ircUser)
  79   buildCompletionList();
  80 }
  81
  82 void TabCompleter::complete() {
  83   return; // FIXME
  84   if(!enabled) {
  85     buildCompletionList();
  86     enabled = true;
  87   }
  88
  89   if (nextCompletion != completionList.end()) {
  90     // clear previous completion
  91     for (int i = 0; i < lastCompletionLength; i++) {
  92       inputLine->backspace();
  93     }
  94
  95     // insert completion
  96     inputLine->insert(*nextCompletion);
  97
  98     // remember charcount to delete next time and advance to next completion
  99     lastCompletionLength = nextCompletion->length();
 100     nextCompletion++;
 101
 102     // we're completing the first word of the line
 103     if(inputLine->text().length() == lastCompletionLength) {
 104       inputLine->insert(nickSuffix);
 105       lastCompletionLength += nickSuffix.length();
 106     }
 107
 108   // we're at the end of the list -> start over again
 109   } else {
 110     nextCompletion = completionList.begin();
 111   }
 112
 113 }
 114
 115 void TabCompleter::reset() {
 116   enabled = false;
 117 }
 118