src/panels/places/placesitem.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2012 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   Based on KFilePlacesItem from kdelibs:                                *
   5  *   Copyright (C) 2007 Kevin Ottens <ervin@kde.org>                       *
   6  *                                                                         *
   7  *   This program is free software; you can redistribute it and/or modify  *
   8  *   it under the terms of the GNU General Public License as published by  *
   9  *   the Free Software Foundation; either version 2 of the License, or     *
  10  *   (at your option) any later version.                                   *
  11  *                                                                         *
  12  *   This program is distributed in the hope that it will be useful,       *
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  15  *   GNU General Public License for more details.                          *
  16  *                                                                         *
  17  *   You should have received a copy of the GNU General Public License     *
  18  *   along with this program; if not, write to the                         *
  19  *   Free Software Foundation, Inc.,                                       *
  20  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  21  ***************************************************************************/
  22
  23 #include "placesitem.h"
  24
  25 #include <KBookmarkManager>
  26 #include <KDebug>
  27 #include <KDirLister>
  28 #include <KIcon>
  29 #include <KLocale>
  30 #include "placesitemsignalhandler.h"
  31 #include <QDateTime>
  32 #include <Solid/Block>
  33
  34 PlacesItem::PlacesItem(const KBookmark& bookmark, PlacesItem* parent) :
  35     KStandardItem(parent),
  36     m_device(),
  37     m_access(),
  38     m_volume(),
  39     m_disc(),
  40     m_signalHandler(0),
  41     m_trashDirLister(0),
  42     m_bookmark()
  43 {
  44     m_signalHandler = new PlacesItemSignalHandler(this);
  45     setBookmark(bookmark);
  46 }
  47
  48 PlacesItem::~PlacesItem()
  49 {
  50     delete m_signalHandler;
  51     delete m_trashDirLister;
  52 }
  53
  54 void PlacesItem::setUrl(const KUrl& url)
  55 {
  56     // The default check in KStandardItem::setDataValue()
  57     // for equal values does not work with a custom value
  58     // like KUrl. Hence do a manual check to prevent that
  59     // setting an equal URL results in an itemsChanged()
  60     // signal.
  61     if (dataValue("url").value<KUrl>() != url) {
  62         delete m_trashDirLister;
  63         if (url.protocol() == QLatin1String("trash")) {
  64             // The trash icon must always be updated dependent on whether
  65             // the trash is empty or not. We use a KDirLister that automatically
  66             // watches for changes if the number of items has been changed.
  67             // The update of the icon is handled in onTrashDirListerCompleted().
  68             m_trashDirLister = new KDirLister();
  69             m_trashDirLister->setAutoErrorHandlingEnabled(false, 0);
  70             m_trashDirLister->setDelayedMimeTypes(true);
  71             QObject::connect(m_trashDirLister, SIGNAL(completed()),
  72                              m_signalHandler, SLOT(onTrashDirListerCompleted()));
  73             m_trashDirLister->openUrl(url);
  74         }
  75
  76         setDataValue("url", url);
  77     }
  78 }
  79
  80 KUrl PlacesItem::url() const
  81 {
  82     return dataValue("url").value<KUrl>();
  83 }
  84
  85 void PlacesItem::setUdi(const QString& udi)
  86 {
  87     setDataValue("udi", udi);
  88 }
  89
  90 QString PlacesItem::udi() const
  91 {
  92     return dataValue("udi").toString();
  93 }
  94
  95 void PlacesItem::setHidden(bool hidden)
  96 {
  97     setDataValue("isHidden", hidden);
  98 }
  99
 100 bool PlacesItem::isHidden() const
 101 {
 102     return dataValue("isHidden").toBool();
 103 }
 104
 105 void PlacesItem::setSystemItem(bool isSystemItem)
 106 {
 107     setDataValue("isSystemItem", isSystemItem);
 108 }
 109
 110 bool PlacesItem::isSystemItem() const
 111 {
 112     return dataValue("isSystemItem").toBool();
 113 }
 114
 115 Solid::Device PlacesItem::device() const
 116 {
 117     return m_device;
 118 }
 119
 120 void PlacesItem::setBookmark(const KBookmark& bookmark)
 121 {
 122     m_bookmark = bookmark;
 123
 124     delete m_access;
 125     delete m_volume;
 126     delete m_disc;
 127
 128
 129     const QString udi = bookmark.metaDataItem("UDI");
 130     if (udi.isEmpty()) {
 131         setIcon(bookmark.icon());
 132         setText(bookmark.text());
 133         setUrl(bookmark.url());
 134     } else {
 135         initializeDevice(udi);
 136     }
 137
 138     const GroupType type = groupType();
 139     if (icon().isEmpty()) {
 140         switch (type) {
 141         case RecentlyAccessedType: setIcon("package_utility_time"); break;
 142         case SearchForType:        setIcon("nepomuk"); break;
 143         case PlacesType:
 144         default:                   setIcon("folder");
 145         }
 146
 147     }
 148
 149     switch (type) {
 150     case PlacesType:           setGroup(i18nc("@item", "Places")); break;
 151     case RecentlyAccessedType: setGroup(i18nc("@item", "Recently Accessed")); break;
 152     case SearchForType:        setGroup(i18nc("@item", "Search For")); break;
 153     case DevicesType:          setGroup(i18nc("@item", "Devices")); break;
 154     default:                   Q_ASSERT(false); break;
 155     }
 156
 157     setHidden(bookmark.metaDataItem("IsHidden") == QLatin1String("true"));
 158 }
 159
 160 KBookmark PlacesItem::bookmark() const
 161 {
 162     return m_bookmark;
 163 }
 164
 165 PlacesItem::GroupType PlacesItem::groupType() const
 166 {
 167     if (udi().isEmpty()) {
 168         const QString protocol = url().protocol();
 169         if (protocol == QLatin1String("timeline")) {
 170             return RecentlyAccessedType;
 171         }
 172
 173         if (protocol.contains(QLatin1String("search"))) {
 174             return SearchForType;
 175         }
 176
 177         return PlacesType;
 178     }
 179
 180     return DevicesType;
 181 }
 182
 183 KBookmark PlacesItem::createBookmark(KBookmarkManager* manager,
 184                                      const QString& text,
 185                                      const KUrl& url,
 186                                      const QString& iconName)
 187 {
 188     KBookmarkGroup root = manager->root();
 189     if (root.isNull()) {
 190         return KBookmark();
 191     }
 192
 193     KBookmark bookmark = root.addBookmark(text, url, iconName);
 194     bookmark.setFullText(text);
 195     bookmark.setMetaDataItem("ID", generateNewId());
 196
 197     return bookmark;
 198 }
 199
 200 KBookmark PlacesItem::createDeviceBookmark(KBookmarkManager* manager,
 201                                            const QString& udi)
 202 {
 203     KBookmarkGroup root = manager->root();
 204     if (root.isNull()) {
 205         return KBookmark();
 206     }
 207
 208     KBookmark bookmark = root.createNewSeparator();
 209     bookmark.setMetaDataItem("UDI", udi);
 210     bookmark.setMetaDataItem("isSystemItem", "true");
 211     return bookmark;
 212 }
 213
 214 void PlacesItem::onDataValueChanged(const QByteArray& role,
 215                                     const QVariant& current,
 216                                     const QVariant& previous)
 217 {
 218     Q_UNUSED(current);
 219     Q_UNUSED(previous);
 220
 221     if (!m_bookmark.isNull()) {
 222         updateBookmarkForRole(role);
 223     }
 224 }
 225
 226 void PlacesItem::onDataChanged(const QHash<QByteArray, QVariant>& current,
 227                                const QHash<QByteArray, QVariant>& previous)
 228 {
 229     Q_UNUSED(previous);
 230
 231     if (!m_bookmark.isNull()) {
 232         QHashIterator<QByteArray, QVariant> it(current);
 233         while (it.hasNext()) {
 234             it.next();
 235             updateBookmarkForRole(it.key());
 236         }
 237     }
 238 }
 239
 240 void PlacesItem::initializeDevice(const QString& udi)
 241 {
 242     m_device = Solid::Device(udi);
 243     if (!m_device.isValid()) {
 244         return;
 245     }
 246
 247     m_access = m_device.as<Solid::StorageAccess>();
 248     m_volume = m_device.as<Solid::StorageVolume>();
 249     m_disc = m_device.as<Solid::OpticalDisc>();
 250
 251     setText(m_device.description());
 252     setIcon(m_device.icon());
 253     setIconOverlays(m_device.emblems());
 254     setUdi(udi);
 255
 256     if (m_access) {
 257         setUrl(m_access->filePath());
 258         QObject::connect(m_access, SIGNAL(accessibilityChanged(bool,QString)),
 259                          m_signalHandler, SLOT(onAccessibilityChanged()));
 260     } else if (m_disc && (m_disc->availableContent() & Solid::OpticalDisc::Audio) != 0) {
 261         const QString device = m_device.as<Solid::Block>()->device();
 262         setUrl(QString("audiocd:/?device=%1").arg(device));
 263     }
 264 }
 265
 266 void PlacesItem::onAccessibilityChanged()
 267 {
 268     setIconOverlays(m_device.emblems());
 269 }
 270
 271 void PlacesItem::onTrashDirListerCompleted()
 272 {
 273     Q_ASSERT(url().protocol() == QLatin1String("trash"));
 274
 275     const bool isTrashEmpty = m_trashDirLister->items().isEmpty();
 276     setIcon(isTrashEmpty ? "user-trash" : "user-trash-full");
 277 }
 278
 279 void PlacesItem::updateBookmarkForRole(const QByteArray& role)
 280 {
 281     Q_ASSERT(!m_bookmark.isNull());
 282     if (role == "iconName") {
 283         m_bookmark.setIcon(icon());
 284     } else if (role == "text") {
 285         m_bookmark.setFullText(text());
 286     } else if (role == "url") {
 287         m_bookmark.setUrl(url());
 288     } else if (role == "udi)") {
 289         m_bookmark.setMetaDataItem("UDI", udi());
 290     } else if (role == "isSystemItem") {
 291         m_bookmark.setMetaDataItem("isSystemItem", isSystemItem() ? "true" : "false");
 292     } else if (role == "isHidden") {
 293         m_bookmark.setMetaDataItem("IsHidden", isHidden() ? "true" : "false");
 294     }
 295 }
 296
 297 QString PlacesItem::generateNewId()
 298 {
 299     // The ID-generation must be different as done in KFilePlacesItem from kdelibs
 300     // to prevent identical IDs, because 'count' is of course not shared. We append a
 301     // " (V2)" to indicate that the ID has been generated by
 302     // a new version of the places view.
 303     static int count = 0;
 304     return QString::number(QDateTime::currentDateTime().toTime_t()) +
 305             '/' + QString::number(count++) + " (V2)";
 306 }