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 #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     if (settings->showSelectionToggle()) {
  81         m_selectionManager = new SelectionManager(view);
  82         connect(m_selectionManager, SIGNAL(selectionChanged()),
  83                 this, SLOT(requestActivation()));
  84         connect(viewModeController, SIGNAL(urlChanged(const KUrl&)),
  85                 m_selectionManager, SLOT(reset()));
  86     }
  87
  88     // initialize auto scroller
  89     m_autoScroller = new DolphinViewAutoScroller(view);
  90
  91     // initialize file item delegate
  92     m_fileItemDelegate = new DolphinFileItemDelegate(view);
  93     m_fileItemDelegate->setShowToolTipWhenElided(false);
  94     view->setItemDelegate(m_fileItemDelegate);
  95
  96     // initialize version control observer
  97     const DolphinView* dolphinView = dolphinViewController->view();
  98     m_versionControlObserver = new VersionControlObserver(view);
  99     connect(m_versionControlObserver, SIGNAL(infoMessage(const QString&)),
 100             dolphinView, SIGNAL(infoMessage(const QString&)));
 101     connect(m_versionControlObserver, SIGNAL(errorMessage(const QString&)),
 102             dolphinView, SIGNAL(errorMessage(const QString&)));
 103     connect(m_versionControlObserver, SIGNAL(operationCompletedMessage(const QString&)),
 104             dolphinView, SIGNAL(operationCompletedMessage(const QString&)));
 105     connect(dolphinViewController, SIGNAL(requestVersionControlActions(const KFileItemList&)),
 106             this, SLOT(slotRequestVersionControlActions(const KFileItemList&)));
 107
 108     // react on view property changes
 109     connect(dolphinView, SIGNAL(showHiddenFilesChanged()),
 110             this, SLOT(slotShowHiddenFilesChanged()));
 111     connect(dolphinView, SIGNAL(sortingChanged(DolphinView::Sorting)),
 112             this, SLOT(slotSortingChanged(DolphinView::Sorting)));
 113     connect(dolphinView, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 114             this, SLOT(slotSortOrderChanged(Qt::SortOrder)));
 115     connect(dolphinView, SIGNAL(sortFoldersFirstChanged(bool)),
 116             this, SLOT(slotSortFoldersFirstChanged(bool)));
 117
 118     // Give the view the ability to auto-expand its directories on hovering
 119     // (the column view takes care about this itself). If the details view
 120     // uses expandable folders, the auto-expanding should be used always.
 121     m_folderExpander = new FolderExpander(view, proxyModel());
 122     m_folderExpander->setEnabled(settings->autoExpandFolders());
 123     connect(m_folderExpander, SIGNAL(enterDir(const QModelIndex&)),
 124             dolphinViewController, SLOT(triggerItem(const QModelIndex&)));
 125
 126     // react on namefilter changes
 127     connect(viewModeController, SIGNAL(nameFilterChanged(const QString&)),
 128             this, SLOT(slotNameFilterChanged(const QString&)));
 129
 130     view->viewport()->installEventFilter(this);
 131 }
 132
 133 ViewExtensionsFactory::~ViewExtensionsFactory()
 134 {
 135 }
 136
 137 void ViewExtensionsFactory::handleCurrentIndexChange(const QModelIndex& current, const QModelIndex& previous)
 138 {
 139     m_autoScroller->handleCurrentIndexChange(current, previous);
 140 }
 141
 142 DolphinFileItemDelegate* ViewExtensionsFactory::fileItemDelegate() const
 143 {
 144     return m_fileItemDelegate;
 145 }
 146
 147 void ViewExtensionsFactory::setAutoFolderExpandingEnabled(bool enabled)
 148 {
 149     m_folderExpander->setEnabled(enabled);
 150 }
 151
 152 bool ViewExtensionsFactory::autoFolderExpandingEnabled() const
 153 {
 154     return m_folderExpander->enabled();
 155 }
 156
 157 bool ViewExtensionsFactory::eventFilter(QObject* watched, QEvent* event)
 158 {
 159     Q_UNUSED(watched);
 160     if ((event->type() == QEvent::Wheel) && (m_selectionManager != 0)) {
 161         m_selectionManager->reset();
 162     }
 163     return false;
 164 }
 165
 166 void ViewExtensionsFactory::slotZoomLevelChanged()
 167 {
 168     m_previewGenerator->updateIcons();
 169     if (m_selectionManager != 0) {
 170         m_selectionManager->reset();
 171     }
 172 }
 173
 174 void ViewExtensionsFactory::cancelPreviews()
 175 {
 176     m_previewGenerator->cancelPreviews();
 177 }
 178
 179 void ViewExtensionsFactory::slotShowPreviewChanged()
 180 {
 181     const bool show = m_dolphinViewController->view()->showPreview();
 182     m_previewGenerator->setPreviewShown(show);
 183 }
 184
 185 void ViewExtensionsFactory::slotShowHiddenFilesChanged()
 186 {
 187     KDirModel* dirModel = static_cast<KDirModel*>(proxyModel()->sourceModel());
 188     KDirLister* dirLister = dirModel->dirLister();
 189
 190     dirLister->stop();
 191
 192     const bool show = m_dolphinViewController->view()->showHiddenFiles();
 193     dirLister->setShowingDotFiles(show);
 194
 195     const KUrl url = dirLister->url();
 196     if (url.isValid()) {
 197         dirLister->openUrl(url, KDirLister::NoFlags);
 198     }
 199 }
 200
 201 void ViewExtensionsFactory::slotSortingChanged(DolphinView::Sorting sorting)
 202 {
 203     proxyModel()->setSorting(sorting);
 204 }
 205
 206 void ViewExtensionsFactory::slotSortOrderChanged(Qt::SortOrder order)
 207 {
 208     proxyModel()->setSortOrder(order);
 209 }
 210
 211 void ViewExtensionsFactory::slotSortFoldersFirstChanged(bool foldersFirst)
 212 {
 213     proxyModel()->setSortFoldersFirst(foldersFirst);
 214 }
 215
 216 void ViewExtensionsFactory::slotNameFilterChanged(const QString& nameFilter)
 217 {
 218     proxyModel()->setFilterFixedString(nameFilter);
 219 }
 220
 221 void ViewExtensionsFactory::slotRequestVersionControlActions(const KFileItemList& items)
 222 {
 223     QList<QAction*> actions;
 224     if (items.isEmpty()) {
 225         const KDirModel* dirModel = static_cast<const KDirModel*>(proxyModel()->sourceModel());
 226         const KUrl url = dirModel->dirLister()->url();
 227         actions = m_versionControlObserver->contextMenuActions(url.path(KUrl::AddTrailingSlash));
 228     } else {
 229         actions = m_versionControlObserver->contextMenuActions(items);
 230     }
 231     m_dolphinViewController->setVersionControlActions(actions);
 232 }
 233
 234 void ViewExtensionsFactory::requestActivation()
 235 {
 236     m_dolphinViewController->requestActivation();
 237 }
 238
 239 DolphinSortFilterProxyModel* ViewExtensionsFactory::proxyModel() const
 240 {
 241     return static_cast<DolphinSortFilterProxyModel*>(m_view->model());
 242 }
 243
 244 #include "viewextensionsfactory.moc"
 245