src/views/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 "dolphinfileitemdelegate.h"
  23 #include "dolphinsortfilterproxymodel.h"
  24 #include "dolphinview.h"
  25 #include "dolphinviewcontroller.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 #include "viewmodecontroller.h"
  33
  34 #include "dolphin_generalsettings.h"
  35
  36 #include <KDirLister>
  37 #include <KDirModel>
  38 #include <KFilePreviewGenerator>
  39 #include <QAbstractItemView>
  40 #include <QApplication>
  41
  42 ViewExtensionsFactory::ViewExtensionsFactory(QAbstractItemView* view,
  43                                              DolphinViewController* dolphinViewController,
  44                                              const ViewModeController* viewModeController) :
  45     QObject(view),
  46     m_view(view),
  47     m_dolphinViewController(dolphinViewController),
  48     m_toolTipManager(0),
  49     m_previewGenerator(0),
  50     m_selectionManager(0),
  51     m_autoScroller(0),
  52     m_fileItemDelegate(0),
  53     m_versionControlObserver(0)
  54 {
  55     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
  56
  57     GeneralSettings* settings = DolphinSettings::instance().generalSettings();
  58
  59     // initialize tooltips
  60     if (settings->showToolTips()) {
  61         DolphinSortFilterProxyModel* proxyModel = static_cast<DolphinSortFilterProxyModel*>(view->model());
  62         m_toolTipManager = new ToolTipManager(view, proxyModel);
  63
  64         connect(dolphinViewController, SIGNAL(hideToolTip()),
  65                 m_toolTipManager, SLOT(hideToolTip()));
  66     }
  67
  68     // initialize preview generator
  69     Q_ASSERT(view->iconSize().isValid());
  70     m_previewGenerator = new KFilePreviewGenerator(view);
  71     m_previewGenerator->setPreviewShown(dolphinViewController->view()->showPreview());
  72     connect(viewModeController, SIGNAL(zoomLevelChanged(int)),
  73             this, SLOT(slotZoomLevelChanged()));
  74     connect(viewModeController, SIGNAL(cancelPreviews()),
  75             this, SLOT(cancelPreviews()));
  76     connect(dolphinViewController->view(), SIGNAL(showPreviewChanged()),
  77             this, SLOT(slotShowPreviewChanged()));
  78
  79     // initialize selection manager
  80     m_selectionManager = new SelectionManager(view);
  81     connect(m_selectionManager, SIGNAL(selectionChanged()),
  82             this, SLOT(requestActivation()));
  83     connect(viewModeController, SIGNAL(urlChanged(const KUrl&)),
  84             m_selectionManager, SLOT(reset()));
  85
  86     // initialize auto scroller
  87     m_autoScroller = new DolphinViewAutoScroller(view);
  88
  89     // initialize file item delegate
  90     m_fileItemDelegate = new DolphinFileItemDelegate(view);
  91     m_fileItemDelegate->setShowToolTipWhenElided(false);
  92     view->setItemDelegate(m_fileItemDelegate);
  93
  94     // initialize version control observer
  95     const DolphinView* dolphinView = dolphinViewController->view();
  96     m_versionControlObserver = new VersionControlObserver(view);
  97     connect(m_versionControlObserver, SIGNAL(infoMessage(const QString&)),
  98             dolphinView, SIGNAL(infoMessage(const QString&)));
  99     connect(m_versionControlObserver, SIGNAL(errorMessage(const QString&)),
 100             dolphinView, SIGNAL(errorMessage(const QString&)));
 101     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(const QString&)),
 102             dolphinView, SIGNAL(operationCompletedMessage(const QString&)));
 103     connect(dolphinViewController, SIGNAL(requestVersionControlActions(const KFileItemList&)),
 104             this, SLOT(slotRequestVersionControlActions(const KFileItemList&)));
 105
 106     // react on view property changes
 107     connect(dolphinView, SIGNAL(showHiddenFilesChanged()),
 108             this, SLOT(slotShowHiddenFilesChanged()));
 109     connect(dolphinView, SIGNAL(sortingChanged(DolphinView::Sorting)),
 110             this, SLOT(slotSortingChanged(DolphinView::Sorting)));
 111     connect(dolphinView, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 112             this, SLOT(slotSortOrderChanged(Qt::SortOrder)));
 113     connect(dolphinView, SIGNAL(sortFoldersFirstChanged(bool)),
 114             this, SLOT(slotSortFoldersFirstChanged(bool)));
 115
 116     // Give the view the ability to auto-expand its directories on hovering
 117     // (the column view takes care about this itself). If the details view
 118     // uses expandable folders, the auto-expanding should be used always.
 119     m_folderExpander = new FolderExpander(view, proxyModel());
 120     m_folderExpander->setEnabled(settings->autoExpandFolders());
 121     connect(m_folderExpander, SIGNAL(enterDir(const QModelIndex&)),
 122             dolphinViewController, SLOT(triggerItem(const QModelIndex&)));
 123
 124     // react on namefilter changes
 125     connect(viewModeController, SIGNAL(nameFilterChanged(const QString&)),
 126             this, SLOT(slotNameFilterChanged(const QString&)));
 127
 128     view->viewport()->installEventFilter(this);
 129 }
 130
 131 ViewExtensionsFactory::~ViewExtensionsFactory()
 132 {
 133 }
 134
 135 void ViewExtensionsFactory::handleCurrentIndexChange(const QModelIndex& current, const QModelIndex& previous)
 136 {
 137     m_autoScroller->handleCurrentIndexChange(current, previous);
 138 }
 139
 140 DolphinFileItemDelegate* ViewExtensionsFactory::fileItemDelegate() const
 141 {
 142     return m_fileItemDelegate;
 143 }
 144
 145 void ViewExtensionsFactory::setAutoFolderExpandingEnabled(bool enabled)
 146 {
 147     m_folderExpander->setEnabled(enabled);
 148 }
 149
 150 bool ViewExtensionsFactory::autoFolderExpandingEnabled() const
 151 {
 152     return m_folderExpander->enabled();
 153 }
 154
 155 bool ViewExtensionsFactory::eventFilter(QObject* watched, QEvent* event)
 156 {
 157     Q_UNUSED(watched);
 158     if ((event->type() == QEvent::Wheel) && (m_selectionManager != 0)) {
 159         m_selectionManager->reset();
 160     }
 161     return false;
 162 }
 163
 164 void ViewExtensionsFactory::slotZoomLevelChanged()
 165 {
 166     m_previewGenerator->updateIcons();
 167     if (m_selectionManager != 0) {
 168         m_selectionManager->reset();
 169     }
 170 }
 171
 172 void ViewExtensionsFactory::cancelPreviews()
 173 {
 174     m_previewGenerator->cancelPreviews();
 175 }
 176
 177 void ViewExtensionsFactory::slotShowPreviewChanged()
 178 {
 179     const bool show = m_dolphinViewController->view()->showPreview();
 180     m_previewGenerator->setPreviewShown(show);
 181 }
 182
 183 void ViewExtensionsFactory::slotShowHiddenFilesChanged()
 184 {
 185     KDirModel* dirModel = static_cast<KDirModel*>(proxyModel()->sourceModel());
 186     KDirLister* dirLister = dirModel->dirLister();
 187
 188     dirLister->stop();
 189
 190     const bool show = m_dolphinViewController->view()->showHiddenFiles();
 191     dirLister->setShowingDotFiles(show);
 192
 193     const KUrl url = dirLister->url();
 194     if (url.isValid()) {
 195         dirLister->openUrl(url, KDirLister::NoFlags);
 196     }
 197 }
 198
 199 void ViewExtensionsFactory::slotSortingChanged(DolphinView::Sorting sorting)
 200 {
 201     proxyModel()->setSorting(sorting);
 202 }
 203
 204 void ViewExtensionsFactory::slotSortOrderChanged(Qt::SortOrder order)
 205 {
 206     proxyModel()->setSortOrder(order);
 207 }
 208
 209 void ViewExtensionsFactory::slotSortFoldersFirstChanged(bool foldersFirst)
 210 {
 211     proxyModel()->setSortFoldersFirst(foldersFirst);
 212 }
 213
 214 void ViewExtensionsFactory::slotNameFilterChanged(const QString& nameFilter)
 215 {
 216     proxyModel()->setFilterFixedString(nameFilter);
 217 }
 218
 219 void ViewExtensionsFactory::slotRequestVersionControlActions(const KFileItemList& items)
 220 {
 221     QList<QAction*> actions;
 222     if (items.isEmpty()) {
 223         const KDirModel* dirModel = static_cast<const KDirModel*>(proxyModel()->sourceModel());
 224         const KUrl url = dirModel->dirLister()->url();
 225         actions = m_versionControlObserver->contextMenuActions(url.path(KUrl::AddTrailingSlash));
 226     } else {
 227         actions = m_versionControlObserver->contextMenuActions(items);
 228     }
 229     m_dolphinViewController->setVersionControlActions(actions);
 230 }
 231
 232 void ViewExtensionsFactory::requestActivation()
 233 {
 234     m_dolphinViewController->requestActivation();
 235 }
 236
 237 DolphinSortFilterProxyModel* ViewExtensionsFactory::proxyModel() const
 238 {
 239     return static_cast<DolphinSortFilterProxyModel*>(m_view->model());
 240 }
 241
 242 #include "viewextensionsfactory.moc"
 243