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.h>
  37 #include <kdirmodel.h>
  38 #include <kfilepreviewgenerator.h>
  39 #include <QAbstractItemView>
  40
  41 ViewExtensionsFactory::ViewExtensionsFactory(QAbstractItemView* view,
  42                                              DolphinViewController* dolphinViewController,
  43                                              const ViewModeController* viewModeController) :
  44     QObject(view),
  45     m_view(view),
  46     m_dolphinViewController(dolphinViewController),
  47     m_toolTipManager(0),
  48     m_previewGenerator(0),
  49     m_selectionManager(0),
  50     m_autoScroller(0),
  51     m_fileItemDelegate(0),
  52     m_versionControlObserver(0)
  53 {
  54     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
  55
  56     GeneralSettings* settings = DolphinSettings::instance().generalSettings();
  57
  58     // initialize tooltips
  59     if (settings->showToolTips()) {
  60         DolphinSortFilterProxyModel* proxyModel = static_cast<DolphinSortFilterProxyModel*>(view->model());
  61         m_toolTipManager = new ToolTipManager(view, proxyModel);
  62
  63         connect(dolphinViewController, SIGNAL(hideToolTip()),
  64                 m_toolTipManager, SLOT(hideTip()));
  65     }
  66
  67     // initialize preview generator
  68     Q_ASSERT(view->iconSize().isValid());
  69     m_previewGenerator = new KFilePreviewGenerator(view);
  70     m_previewGenerator->setPreviewShown(dolphinViewController->view()->showPreview());
  71     connect(viewModeController, SIGNAL(zoomLevelChanged(int)),
  72             this, SLOT(slotZoomLevelChanged()));
  73     connect(viewModeController, SIGNAL(cancelPreviews()),
  74             this, SLOT(cancelPreviews()));
  75     connect(dolphinViewController->view(), SIGNAL(showPreviewChanged()),
  76             this, SLOT(slotShowPreviewChanged()));
  77
  78     // initialize selection manager
  79     if (settings->showSelectionToggle()) {
  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
  87     // initialize auto scroller
  88     m_autoScroller = new DolphinViewAutoScroller(view);
  89
  90     // initialize file item delegate
  91     m_fileItemDelegate = new DolphinFileItemDelegate(view);
  92     m_fileItemDelegate->setShowToolTipWhenElided(false);
  93     view->setItemDelegate(m_fileItemDelegate);
  94
  95     // initialize version control observer
  96     const DolphinView* dolphinView = dolphinViewController->view();
  97     m_versionControlObserver = new VersionControlObserver(view);
  98     connect(m_versionControlObserver, SIGNAL(infoMessage(const QString&)),
  99             dolphinView, SIGNAL(infoMessage(const QString&)));
 100     connect(m_versionControlObserver, SIGNAL(errorMessage(const QString&)),
 101             dolphinView, SIGNAL(errorMessage(const QString&)));
 102     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(const QString&)),
 103             dolphinView, SIGNAL(operationCompletedMessage(const QString&)));
 104     connect(dolphinViewController, SIGNAL(requestVersionControlActions(const KFileItemList&)),
 105             this, SLOT(slotRequestVersionControlActions(const KFileItemList&)));
 106
 107     // react on view property changes
 108     connect(dolphinView, SIGNAL(showHiddenFilesChanged()),
 109             this, SLOT(slotShowHiddenFilesChanged()));
 110     connect(dolphinView, SIGNAL(sortingChanged(DolphinView::Sorting)),
 111             this, SLOT(slotSortingChanged(DolphinView::Sorting)));
 112     connect(dolphinView, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 113             this, SLOT(slotSortOrderChanged(Qt::SortOrder)));
 114     connect(dolphinView, SIGNAL(sortFoldersFirstChanged(bool)),
 115             this, SLOT(slotSortFoldersFirstChanged(bool)));
 116
 117     // Give the view the ability to auto-expand its directories on hovering
 118     // (the column view takes care about this itself). If the details view
 119     // uses expandable folders, the auto-expanding should be used always.
 120     m_folderExpander = new FolderExpander(view, proxyModel());
 121     m_folderExpander->setEnabled(settings->autoExpandFolders());
 122     connect(m_folderExpander, SIGNAL(enterDir(const QModelIndex&)),
 123             dolphinViewController, SLOT(triggerItem(const QModelIndex&)));
 124
 125     // react on namefilter changes
 126     connect(viewModeController, SIGNAL(nameFilterChanged(const QString&)),
 127             this, SLOT(slotNameFilterChanged(const QString&)));
 128
 129     view->viewport()->installEventFilter(this);
 130 }
 131
 132 ViewExtensionsFactory::~ViewExtensionsFactory()
 133 {
 134 }
 135
 136 void ViewExtensionsFactory::handleCurrentIndexChange(const QModelIndex& current, const QModelIndex& previous)
 137 {
 138     m_autoScroller->handleCurrentIndexChange(current, previous);
 139 }
 140
 141 DolphinFileItemDelegate* ViewExtensionsFactory::fileItemDelegate() const
 142 {
 143     return m_fileItemDelegate;
 144 }
 145
 146 void ViewExtensionsFactory::setAutoFolderExpandingEnabled(bool enabled)
 147 {
 148     m_folderExpander->setEnabled(enabled);
 149 }
 150
 151 bool ViewExtensionsFactory::autoFolderExpandingEnabled() const
 152 {
 153     return m_folderExpander->enabled();
 154 }
 155
 156 bool ViewExtensionsFactory::eventFilter(QObject* watched, QEvent* event)
 157 {
 158     Q_UNUSED(watched);
 159     if ((event->type() == QEvent::Wheel) && (m_selectionManager != 0)) {
 160         m_selectionManager->reset();
 161     }
 162     return false;
 163 }
 164
 165 void ViewExtensionsFactory::slotZoomLevelChanged()
 166 {
 167     m_previewGenerator->updateIcons();
 168     if (m_selectionManager != 0) {
 169         m_selectionManager->reset();
 170     }
 171 }
 172
 173 void ViewExtensionsFactory::cancelPreviews()
 174 {
 175     m_previewGenerator->cancelPreviews();
 176 }
 177
 178 void ViewExtensionsFactory::slotShowPreviewChanged()
 179 {
 180     const bool show = m_dolphinViewController->view()->showPreview();
 181     m_previewGenerator->setPreviewShown(show);
 182 }
 183
 184 void ViewExtensionsFactory::slotShowHiddenFilesChanged()
 185 {
 186     KDirModel* dirModel = static_cast<KDirModel*>(proxyModel()->sourceModel());
 187     KDirLister* dirLister = dirModel->dirLister();
 188
 189     dirLister->stop();
 190
 191     const bool show = m_dolphinViewController->view()->showHiddenFiles();
 192     dirLister->setShowingDotFiles(show);
 193
 194     const KUrl url = dirLister->url();
 195     if (url.isValid()) {
 196         dirLister->openUrl(url, KDirLister::NoFlags);
 197     }
 198 }
 199
 200 void ViewExtensionsFactory::slotSortingChanged(DolphinView::Sorting sorting)
 201 {
 202     proxyModel()->setSorting(sorting);
 203 }
 204
 205 void ViewExtensionsFactory::slotSortOrderChanged(Qt::SortOrder order)
 206 {
 207     proxyModel()->setSortOrder(order);
 208 }
 209
 210 void ViewExtensionsFactory::slotSortFoldersFirstChanged(bool foldersFirst)
 211 {
 212     proxyModel()->setSortFoldersFirst(foldersFirst);
 213 }
 214
 215 void ViewExtensionsFactory::slotNameFilterChanged(const QString& nameFilter)
 216 {
 217     proxyModel()->setFilterFixedString(nameFilter);
 218 }
 219
 220 void ViewExtensionsFactory::slotRequestVersionControlActions(const KFileItemList& items)
 221 {
 222     QList<QAction*> actions;
 223     if (items.isEmpty()) {
 224         const KDirModel* dirModel = static_cast<const KDirModel*>(proxyModel()->sourceModel());
 225         const KUrl url = dirModel->dirLister()->url();
 226         actions = m_versionControlObserver->contextMenuActions(url.path(KUrl::AddTrailingSlash));
 227     } else {
 228         actions = m_versionControlObserver->contextMenuActions(items);
 229     }
 230     m_dolphinViewController->setVersionControlActions(actions);
 231 }
 232
 233 void ViewExtensionsFactory::requestActivation()
 234 {
 235     m_dolphinViewController->requestActivation();
 236 }
 237
 238 DolphinSortFilterProxyModel* ViewExtensionsFactory::proxyModel() const
 239 {
 240     return static_cast<DolphinSortFilterProxyModel*>(m_view->model());
 241 }
 242
 243 #include "viewextensionsfactory.moc"
 244