src/uisupport/bufferview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2005-08 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 "client.h"
  22 #include "buffersyncer.h"
  23 #include "bufferview.h"
  24 #include "networkmodel.h"
  25 #include "network.h"
  26
  27 #include "uisettings.h"
  28
  29 /*****************************************
  30 * The TreeView showing the Buffers
  31 *****************************************/
  32 // Please be carefull when reimplementing methods which are used to inform the view about changes to the data
  33 // to be on the safe side: call QTreeView's method aswell
  34 BufferView::BufferView(QWidget *parent) : QTreeView(parent) {
  35   setContextMenuPolicy(Qt::CustomContextMenu);
  36
  37   connect(this, SIGNAL(customContextMenuRequested(const QPoint &)),
  38           this, SLOT(showContextMenu(const QPoint &)));
  39 }
  40
  41 void BufferView::init() {
  42   setIndentation(10);
  43   header()->setContextMenuPolicy(Qt::ActionsContextMenu);
  44   hideColumn(1);
  45   hideColumn(2);
  46   expandAll();
  47
  48   setAnimated(true);
  49
  50 #ifndef QT_NO_DRAGANDDROP
  51   setDragEnabled(true);
  52   setAcceptDrops(true);
  53   setDropIndicatorShown(true);
  54 #endif
  55
  56   setSortingEnabled(true);
  57   sortByColumn(0, Qt::AscendingOrder);
  58   connect(this, SIGNAL(activated(QModelIndex)), this, SLOT(joinChannel(QModelIndex)));
  59 }
  60
  61 void BufferView::setFilteredModel(QAbstractItemModel *model, BufferViewFilter::Modes mode, QList<NetworkId> nets) {
  62   BufferViewFilter *filter = new BufferViewFilter(model, mode, nets);
  63   setModel(filter);
  64   connect(this, SIGNAL(removeBuffer(const QModelIndex &)), filter, SLOT(removeBuffer(const QModelIndex &)));
  65 }
  66
  67 void BufferView::setModel(QAbstractItemModel *model) {
  68   delete selectionModel();
  69   QTreeView::setModel(model);
  70   init();
  71
  72   // remove old Actions
  73   QList<QAction *> oldactions = header()->actions();
  74   foreach(QAction *action, oldactions) {
  75     header()->removeAction(action);
  76     action->deleteLater();
  77   }
  78
  79   QString sectionName;
  80   QAction *showSection;
  81   for(int i = 1; i < model->columnCount(); i++) {
  82     sectionName = (model->headerData(i, Qt::Horizontal, Qt::DisplayRole)).toString();
  83     showSection = new QAction(sectionName, header());
  84     showSection->setCheckable(true);
  85     showSection->setChecked(!isColumnHidden(i));
  86     showSection->setProperty("column", i);
  87     connect(showSection, SIGNAL(toggled(bool)), this, SLOT(toggleHeader(bool)));
  88     header()->addAction(showSection);
  89   }
  90
  91 }
  92
  93 void BufferView::joinChannel(const QModelIndex &index) {
  94   BufferInfo::Type bufferType = (BufferInfo::Type)index.data(NetworkModel::BufferTypeRole).value<int>();
  95
  96   if(bufferType != BufferInfo::ChannelBuffer)
  97     return;
  98
  99   BufferInfo bufferInfo = index.data(NetworkModel::BufferInfoRole).value<BufferInfo>();
 100
 101   Client::userInput(bufferInfo, QString("/JOIN %1").arg(bufferInfo.bufferName()));
 102 }
 103
 104 void BufferView::keyPressEvent(QKeyEvent *event) {
 105   if(event->key() == Qt::Key_Backspace || event->key() == Qt::Key_Delete) {
 106     event->accept();
 107     QModelIndex index = selectionModel()->selectedIndexes().first();
 108     if(index.isValid()) {
 109       emit removeBuffer(index);
 110     }
 111   }
 112   QTreeView::keyPressEvent(event);
 113 }
 114
 115 // ensure that newly inserted network nodes are expanded per default
 116 void BufferView::rowsInserted(const QModelIndex & parent, int start, int end) {
 117   QTreeView::rowsInserted(parent, start, end);
 118   if(model()->rowCount(parent) == 1 && parent.data(NetworkModel::ItemTypeRole) == NetworkModel::NetworkItemType && parent.data(NetworkModel::ItemActiveRole) == true) {
 119     // without updating the parent the expand will have no effect... Qt Bug?
 120     update(parent);
 121     expand(parent);
 122   }
 123 }
 124
 125 void BufferView::dataChanged(const QModelIndex &topLeft, const QModelIndex &bottomRight) {
 126   QTreeView::dataChanged(topLeft, bottomRight);
 127
 128   // determine how many items have been changed and if any of them is a networkitem
 129   // which just swichted from active to inactive or vice versa
 130   if(topLeft.data(NetworkModel::ItemTypeRole) != NetworkModel::NetworkItemType)
 131     return;
 132
 133   for(int i = topLeft.row(); i <= bottomRight.row(); i++) {
 134     QModelIndex networkIdx = topLeft.sibling(topLeft.row(), 0);
 135     if(model()->rowCount(networkIdx) == 0)
 136       continue;
 137
 138     bool isActive = networkIdx.data(NetworkModel::ItemActiveRole).toBool();
 139     if(isExpanded(networkIdx) != isActive)
 140       setExpanded(networkIdx, isActive);
 141   }
 142 }
 143
 144
 145 void BufferView::toggleHeader(bool checked) {
 146   QAction *action = qobject_cast<QAction *>(sender());
 147   header()->setSectionHidden((action->property("column")).toInt(), !checked);
 148 }
 149
 150 void BufferView::showContextMenu(const QPoint &pos) {
 151   QModelIndex index = indexAt(pos);
 152   if(!index.isValid()) return;
 153   QMenu contextMenu(this);
 154   QAction *connectNetAction = new QAction(tr("Connect"), this);
 155   QAction *disconnectNetAction = new QAction(tr("Disconnect"), this);
 156   QAction *joinChannelAction = new QAction(tr("Join Channel"), this);
 157
 158   QAction *joinBufferAction = new QAction(tr("Join"), this);
 159   QAction *partBufferAction = new QAction(tr("Part"), this);
 160   QAction *removeBufferAction = new QAction(tr("Delete buffer"), this);
 161
 162   QMenu *hideEventsMenu = new QMenu(tr("Hide Events"), this);
 163   QAction *hideJoinAction = hideEventsMenu->addAction(tr("Join Events"));
 164   QAction *hidePartAction = hideEventsMenu->addAction(tr("Part Events"));
 165   QAction *hideKillAction = hideEventsMenu->addAction(tr("Kill Events"));
 166   QAction *hideQuitAction = hideEventsMenu->addAction(tr("Quit Events"));
 167   QAction *hideModeAction = hideEventsMenu->addAction(tr("Mode Events"));
 168   hideJoinAction->setCheckable(true);
 169   hidePartAction->setCheckable(true);
 170   hideKillAction->setCheckable(true);
 171   hideQuitAction->setCheckable(true);
 172   hideModeAction->setCheckable(true);
 173   hideJoinAction->setEnabled(false);
 174   hidePartAction->setEnabled(false);
 175   hideKillAction->setEnabled(false);
 176   hideQuitAction->setEnabled(false);
 177   hideModeAction->setEnabled(false);
 178
 179   QAction *ignoreListAction = new QAction(tr("Ignore list"), this);
 180   ignoreListAction->setEnabled(false);
 181   QAction *whoBufferAction = new QAction(tr("WHO"), this);
 182
 183   if(index.data(NetworkModel::ItemTypeRole) == NetworkModel::NetworkItemType) {
 184     if(index.data(NetworkModel::ItemActiveRole).toBool()) {
 185       contextMenu.addAction(disconnectNetAction);
 186       contextMenu.addSeparator();
 187       contextMenu.addAction(joinChannelAction);
 188     } else {
 189       contextMenu.addAction(connectNetAction);
 190     }
 191   }
 192
 193   BufferInfo bufferInfo = index.data(NetworkModel::BufferInfoRole).value<BufferInfo>();
 194   QString channelname = index.sibling(index.row(), 0).data().toString();
 195
 196   if(index.data(NetworkModel::ItemTypeRole) == NetworkModel::BufferItemType) {
 197     if(bufferInfo.type() != BufferInfo::ChannelBuffer && bufferInfo.type() != BufferInfo::QueryBuffer) return;
 198     contextMenu.addAction(joinBufferAction);
 199     contextMenu.addAction(partBufferAction);
 200     contextMenu.addAction(removeBufferAction);
 201     contextMenu.addMenu(hideEventsMenu);
 202     contextMenu.addAction(ignoreListAction);
 203     contextMenu.addAction(whoBufferAction);
 204
 205     if(bufferInfo.type() == BufferInfo::ChannelBuffer) {
 206       if(index.data(NetworkModel::ItemActiveRole).toBool()) {
 207         removeBufferAction->setEnabled(false);
 208         removeBufferAction->setToolTip("To delete the buffer, part the channel first.");
 209         joinBufferAction->setVisible(false);
 210         whoBufferAction->setVisible(false);
 211       } else {
 212         partBufferAction->setVisible(false);
 213       }
 214     } else {
 215       joinBufferAction->setVisible(false);
 216       partBufferAction->setVisible(false);
 217     }
 218   }
 219
 220   QAction *result = contextMenu.exec(QCursor::pos());
 221   if(result == connectNetAction || result == disconnectNetAction) {
 222     const Network *network = Client::network(index.data(NetworkModel::NetworkIdRole).value<NetworkId>());
 223     if(!network) return;
 224     if(network->connectionState() == Network::Disconnected)
 225       network->requestConnect();
 226     else
 227       network->requestDisconnect();
 228   } else
 229   if(result == joinChannelAction) {
 230     bool ok;
 231     QString channelName = QInputDialog::getText(this, tr("Join Channel"),
 232                                                 tr("Input channel name:"),QLineEdit::Normal,
 233                                                 QDir::home().dirName(), &ok);
 234     if (ok && !channelName.isEmpty()) {
 235       const Buffer *statusbuffer = Client::instance()->statusBuffer(index.data(NetworkModel::NetworkIdRole).value<NetworkId>());
 236       if(statusbuffer) {
 237         Client::instance()->userInput(statusbuffer->bufferInfo(), QString("/J %1").arg(channelName));
 238       }
 239     }
 240   } else
 241   if(result == joinBufferAction) {
 242     Client::instance()->userInput(bufferInfo, QString("/JOIN %1").arg(channelname));
 243   } else
 244   if(result == partBufferAction) {
 245     Client::instance()->userInput(bufferInfo, QString("/PART %1").arg(channelname));
 246   } else
 247   if(result == removeBufferAction) {
 248     int res = QMessageBox::question(this, tr("Remove buffer permanently?"),
 249                                     tr("Do you want to delete the buffer \"%1\" permanently? This will delete all related data, including all backlog "
 250                                        "data, from the core's database!").arg(bufferInfo.bufferName()),
 251                                         QMessageBox::Yes|QMessageBox::No, QMessageBox::No);
 252     if(res == QMessageBox::Yes) {
 253       Client::removeBuffer(bufferInfo.bufferId());
 254     }
 255   } else
 256   if(result == whoBufferAction) {
 257     Client::instance()->userInput(bufferInfo, QString("/WHO %1").arg(channelname));
 258   }
 259 }
 260
 261 void BufferView::wheelEvent(QWheelEvent* event)
 262 {
 263   UiSettings s;
 264   if(s.value("MouseWheelChangesBuffers",QVariant(true)).toBool()) {
 265     int rowDelta = ( event->delta() > 0 ) ? -1 : 1;
 266     QModelIndex currentIndex = selectionModel()->currentIndex();
 267     QModelIndex resultingIndex;
 268     if( model()->hasIndex(  currentIndex.row() + rowDelta, currentIndex.column(), currentIndex.parent() ) )
 269     {
 270         resultingIndex = currentIndex.sibling( currentIndex.row() + rowDelta, currentIndex.column() );
 271     }
 272     else //if we scroll into a the parent node...
 273     {
 274         QModelIndex parent = currentIndex.parent();
 275         QModelIndex aunt = parent.sibling( parent.row() + rowDelta, parent.column() );
 276         if( rowDelta == -1 )
 277             resultingIndex = aunt.child( model()->rowCount( aunt ) - 1, 0 );
 278         else
 279             resultingIndex = aunt.child( 0, 0 );
 280         if( !resultingIndex.isValid() )
 281             return;
 282     }
 283     selectionModel()->setCurrentIndex( resultingIndex, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows );
 284     selectionModel()->select( resultingIndex, QItemSelectionModel::ClearAndSelect );
 285   } else {
 286     QAbstractScrollArea::wheelEvent(event);
 287   }
 288 }
 289
 290
 291 QSize BufferView::sizeHint() const {
 292   if(!model())
 293     return QTreeView::sizeHint();
 294
 295   if(model()->rowCount() == 0)
 296     return QSize(120, 50);
 297
 298   int columnSize = 0;
 299   for(int i = 0; i < model()->columnCount(); i++) {
 300     if(!isColumnHidden(i))
 301       columnSize += sizeHintForColumn(i);
 302   }
 303   return QSize(columnSize, 50);
 304 }