src/viewextensionsfactory.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2009 by Peter Penz <peter.penz@gmx.at>                  *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "viewextensionsfactory.h"
  21
  22 #include "dolphincontroller.h"
  23 #include "dolphinfileitemdelegate.h"
  24 #include "dolphinsortfilterproxymodel.h"
  25 #include "dolphinview.h"
  26 #include "dolphinviewautoscroller.h"
  27 #include "folderexpander.h"
  28 #include "selectionmanager.h"
  29 #include "settings/dolphinsettings.h"
  30 #include "tooltips/tooltipmanager.h"
  31 #include "versioncontrol/versioncontrolobserver.h"
  32
  33 #include "dolphin_generalsettings.h"
  34
  35 #include <kdirlister.h>
  36 #include <kdirmodel.h>
  37 #include <kfilepreviewgenerator.h>
  38 #include <QAbstractItemView>
  39
  40 ViewExtensionsFactory::ViewExtensionsFactory(QAbstractItemView* view,
  41                                              DolphinController* controller) :
  42     QObject(view),
  43     m_view(view),
  44     m_controller(controller),
  45     m_toolTipManager(0),
  46     m_previewGenerator(0),
  47     m_selectionManager(0),
  48     m_autoScroller(0),
  49     m_fileItemDelegate(0),
  50     m_versionControlObserver(0)
  51 {
  52     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
  53
  54     GeneralSettings* settings = DolphinSettings::instance().generalSettings();
  55
  56     // initialize tooltips
  57     if (settings->showToolTips()) {
  58         DolphinSortFilterProxyModel* proxyModel = static_cast<DolphinSortFilterProxyModel*>(view->model());
  59         m_toolTipManager = new ToolTipManager(view, proxyModel);
  60
  61         connect(controller, SIGNAL(hideToolTip()),
  62                 m_toolTipManager, SLOT(hideTip()));
  63     }
  64
  65     // initialize preview generator
  66     Q_ASSERT(view->iconSize().isValid());
  67     m_previewGenerator = new KFilePreviewGenerator(view);
  68     m_previewGenerator->setPreviewShown(controller->dolphinView()->showPreview());
  69     connect(controller, SIGNAL(zoomLevelChanged(int)),
  70             this, SLOT(slotZoomLevelChanged()));
  71     connect(controller, SIGNAL(cancelPreviews()),
  72             this, SLOT(cancelPreviews()));
  73     connect(controller->dolphinView(), SIGNAL(showPreviewChanged()),
  74             this, SLOT(slotShowPreviewChanged()));
  75
  76     // initialize selection manager
  77     if (settings->showSelectionToggle()) {
  78         m_selectionManager = new SelectionManager(view);
  79         connect(m_selectionManager, SIGNAL(selectionChanged()),
  80                 this, SLOT(requestActivation()));
  81         connect(controller, SIGNAL(urlChanged(const KUrl&)),
  82                 m_selectionManager, SLOT(reset()));
  83     }
  84
  85     // initialize auto scroller
  86     m_autoScroller = new DolphinViewAutoScroller(view);
  87
  88     // initialize file item delegate
  89     m_fileItemDelegate = new DolphinFileItemDelegate(view);
  90     m_fileItemDelegate->setShowToolTipWhenElided(false);
  91     view->setItemDelegate(m_fileItemDelegate);
  92
  93     // initialize version control observer
  94     const DolphinView* dolphinView = controller->dolphinView();
  95     m_versionControlObserver = new VersionControlObserver(view);
  96     connect(m_versionControlObserver, SIGNAL(infoMessage(const QString&)),
  97             dolphinView, SIGNAL(infoMessage(const QString&)));
  98     connect(m_versionControlObserver, SIGNAL(errorMessage(const QString&)),
  99             dolphinView, SIGNAL(errorMessage(const QString&)));
 100     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(const QString&)),
 101             dolphinView, SIGNAL(operationCompletedMessage(const QString&)));
 102     connect(controller, SIGNAL(requestVersionControlActions(const KFileItemList&)),
 103             this, SLOT(slotRequestVersionControlActions(const KFileItemList&)));
 104
 105     // react on view property changes
 106     connect(dolphinView, SIGNAL(showHiddenFilesChanged()),
 107             this, SLOT(slotShowHiddenFilesChanged()));
 108     connect(dolphinView, SIGNAL(sortingChanged(DolphinView::Sorting)),
 109             this, SLOT(slotSortingChanged(DolphinView::Sorting)));
 110     connect(dolphinView, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 111             this, SLOT(slotSortOrderChanged(Qt::SortOrder)));
 112     connect(dolphinView, SIGNAL(sortFoldersFirstChanged(bool)),
 113             this, SLOT(slotSortFoldersFirstChanged(bool)));
 114
 115     // inform the controller about selection changes
 116     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 117             controller, SLOT(emitSelectionChanged()));
 118
 119     // Give the view the ability to auto-expand its directories on hovering
 120     // (the column view takes care about this itself). If the details view
 121     // uses expandable folders, the auto-expanding should be used always.
 122     m_folderExpander = new FolderExpander(view, proxyModel());
 123     m_folderExpander->setEnabled(settings->autoExpandFolders());
 124     connect(m_folderExpander, SIGNAL(enterDir(const QModelIndex&)),
 125             controller, SLOT(triggerItem(const QModelIndex&)));
 126
 127     // react on namefilter changes
 128     connect(controller, SIGNAL(nameFilterChanged(const QString&)),
 129             this, SLOT(slotNameFilterChanged(const QString&)));
 130
 131     view->viewport()->installEventFilter(this);
 132 }
 133
 134 ViewExtensionsFactory::~ViewExtensionsFactory()
 135 {
 136 }
 137
 138 void ViewExtensionsFactory::handleCurrentIndexChange(const QModelIndex& current, const QModelIndex& previous)
 139 {
 140     m_autoScroller->handleCurrentIndexChange(current, previous);
 141 }
 142
 143 DolphinFileItemDelegate* ViewExtensionsFactory::fileItemDelegate() const
 144 {
 145     return m_fileItemDelegate;
 146 }
 147
 148 void ViewExtensionsFactory::setAutoFolderExpandingEnabled(bool enabled)
 149 {
 150     m_folderExpander->setEnabled(enabled);
 151 }
 152
 153 bool ViewExtensionsFactory::autoFolderExpandingEnabled() const
 154 {
 155     return m_folderExpander->enabled();
 156 }
 157
 158 bool ViewExtensionsFactory::eventFilter(QObject* watched, QEvent* event)
 159 {
 160     Q_UNUSED(watched);
 161     if ((event->type() == QEvent::Wheel) && (m_selectionManager != 0)) {
 162         m_selectionManager->reset();
 163     }
 164     return false;
 165 }
 166
 167 void ViewExtensionsFactory::slotZoomLevelChanged()
 168 {
 169     m_previewGenerator->updateIcons();
 170     if (m_selectionManager != 0) {
 171         m_selectionManager->reset();
 172     }
 173 }
 174
 175 void ViewExtensionsFactory::cancelPreviews()
 176 {
 177     m_previewGenerator->cancelPreviews();
 178 }
 179
 180 void ViewExtensionsFactory::slotShowPreviewChanged()
 181 {
 182     const bool show = m_controller->dolphinView()->showPreview();
 183     m_previewGenerator->setPreviewShown(show);
 184 }
 185
 186 void ViewExtensionsFactory::slotShowHiddenFilesChanged()
 187 {
 188     KDirModel* dirModel = static_cast<KDirModel*>(proxyModel()->sourceModel());
 189     KDirLister* dirLister = dirModel->dirLister();
 190
 191     dirLister->stop();
 192
 193     const bool show = m_controller->dolphinView()->showHiddenFiles();
 194     dirLister->setShowingDotFiles(show);
 195
 196     const KUrl url = dirLister->url();
 197     if (url.isValid()) {
 198         dirLister->openUrl(url, KDirLister::NoFlags);
 199     }
 200 }
 201
 202 void ViewExtensionsFactory::slotSortingChanged(DolphinView::Sorting sorting)
 203 {
 204     proxyModel()->setSorting(sorting);
 205 }
 206
 207 void ViewExtensionsFactory::slotSortOrderChanged(Qt::SortOrder order)
 208 {
 209     proxyModel()->setSortOrder(order);
 210 }
 211
 212 void ViewExtensionsFactory::slotSortFoldersFirstChanged(bool foldersFirst)
 213 {
 214     proxyModel()->setSortFoldersFirst(foldersFirst);
 215 }
 216
 217 void ViewExtensionsFactory::slotNameFilterChanged(const QString& nameFilter)
 218 {
 219     proxyModel()->setFilterRegExp(nameFilter);
 220 }
 221
 222 void ViewExtensionsFactory::slotRequestVersionControlActions(const KFileItemList& items)
 223 {
 224     QList<QAction*> actions;
 225     if (items.isEmpty()) {
 226         const KDirModel* dirModel = static_cast<const KDirModel*>(proxyModel()->sourceModel());
 227         const KUrl url = dirModel->dirLister()->url();
 228         actions = m_versionControlObserver->contextMenuActions(url.path(KUrl::AddTrailingSlash));
 229     } else {
 230         actions = m_versionControlObserver->contextMenuActions(items);
 231     }
 232     m_controller->setVersionControlActions(actions);
 233 }
 234
 235 void ViewExtensionsFactory::requestActivation()
 236 {
 237     m_controller->requestActivation();
 238 }
 239
 240 DolphinSortFilterProxyModel* ViewExtensionsFactory::proxyModel() const
 241 {
 242     return static_cast<DolphinSortFilterProxyModel*>(m_view->model());
 243 }
 244
 245 #include "viewextensionsfactory.moc"
 246