src/views/viewproperties.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2006-2010 Peter Penz <peter.penz19@gmail.com>
   3  * SPDX-FileCopyrightText: 2006 Aaron J. Seigo <aseigo@kde.org>
   4  *
   5  * SPDX-License-Identifier: GPL-2.0-or-later
   6  */
   7
   8 #include "viewproperties.h"
   9
  10 #include "dolphin_directoryviewpropertysettings.h"
  11 #include "dolphin_generalsettings.h"
  12 #include "dolphindebug.h"
  13
  14 #include <QCryptographicHash>
  15
  16 #include <KFileItem>
  17
  18 namespace
  19 {
  20 const int AdditionalInfoViewPropertiesVersion = 1;
  21 const int NameRolePropertiesVersion = 2;
  22 const int DateRolePropertiesVersion = 4;
  23 const int CurrentViewPropertiesVersion = 4;
  24
  25 // String representation to mark the additional properties of
  26 // the details view as customized by the user. See
  27 // ViewProperties::visibleRoles() for more information.
  28 const char CustomizedDetailsString[] = "CustomizedDetails";
  29
  30 // Filename that is used for storing the properties
  31 const char ViewPropertiesFileName[] = ".directory";
  32 }
  33
  34 ViewProperties::ViewProperties(const QUrl &url)
  35     : m_changedProps(false)
  36     , m_autoSave(true)
  37     , m_node(nullptr)
  38 {
  39     GeneralSettings *settings = GeneralSettings::self();
  40     const bool useGlobalViewProps = settings->globalViewProps() || url.isEmpty();
  41     bool useSearchView = false;
  42     bool useTrashView = false;
  43     bool useRecentDocumentsView = false;
  44     bool useDownloadsView = false;
  45
  46     // We try and save it to the file .directory in the directory being viewed.
  47     // If the directory is not writable by the user or the directory is not local,
  48     // we store the properties information in a local file.
  49     if (url.scheme().contains(QLatin1String("search"))) {
  50         m_filePath = destinationDir(QStringLiteral("search/")) + directoryHashForUrl(url);
  51         useSearchView = true;
  52     } else if (url.scheme() == QLatin1String("trash")) {
  53         m_filePath = destinationDir(QStringLiteral("trash"));
  54         useTrashView = true;
  55     } else if (url.scheme() == QLatin1String("recentlyused")) {
  56         m_filePath = destinationDir(QStringLiteral("recentlyused"));
  57         useRecentDocumentsView = true;
  58     } else if (url.scheme() == QLatin1String("timeline")) {
  59         m_filePath = destinationDir(QStringLiteral("timeline"));
  60         useRecentDocumentsView = true;
  61     } else if (useGlobalViewProps) {
  62         m_filePath = destinationDir(QStringLiteral("global"));
  63     } else if (url.isLocalFile()) {
  64         m_filePath = url.toLocalFile();
  65
  66         bool useDestinationDir = !isPartOfHome(m_filePath);
  67         if (!useDestinationDir) {
  68             const KFileItem fileItem(url);
  69             useDestinationDir = fileItem.isSlow();
  70         }
  71
  72         if (!useDestinationDir) {
  73             const QFileInfo dirInfo(m_filePath);
  74             const QFileInfo fileInfo(m_filePath + QDir::separator() + ViewPropertiesFileName);
  75             useDestinationDir = !dirInfo.isWritable() || (dirInfo.size() > 0 && fileInfo.exists() && !(fileInfo.isReadable() && fileInfo.isWritable()));
  76         }
  77
  78         if (useDestinationDir) {
  79 #ifdef Q_OS_WIN
  80             // m_filePath probably begins with C:/ - the colon is not a valid character for paths though
  81             m_filePath = QDir::separator() + m_filePath.remove(QLatin1Char(':'));
  82 #endif
  83             m_filePath = destinationDir(QStringLiteral("local")) + m_filePath;
  84         }
  85
  86         if (m_filePath == QStandardPaths::writableLocation(QStandardPaths::DownloadLocation)) {
  87             useDownloadsView = true;
  88         }
  89     } else {
  90         m_filePath = destinationDir(QStringLiteral("remote")) + m_filePath;
  91     }
  92
  93     const QString file = m_filePath + QDir::separator() + ViewPropertiesFileName;
  94     m_node = new ViewPropertySettings(KSharedConfig::openConfig(file));
  95
  96     // If the .directory file does not exist or the timestamp is too old,
  97     // use default values instead.
  98     const bool useDefaultProps = (!useGlobalViewProps || useSearchView || useTrashView || useRecentDocumentsView || useDownloadsView)
  99         && (!QFile::exists(file) || (m_node->timestamp() < settings->viewPropsTimestamp()));
 100     if (useDefaultProps) {
 101         if (useSearchView) {
 102             const QString path = url.path();
 103
 104             if (path == QLatin1String("/images")) {
 105                 setViewMode(DolphinView::IconsView);
 106                 setPreviewsShown(true);
 107                 setVisibleRoles({"text", "dimensions", "imageDateTime"});
 108             } else if (path == QLatin1String("/audio")) {
 109                 setViewMode(DolphinView::DetailsView);
 110                 setVisibleRoles({"text", "artist", "album", "duration"});
 111             } else if (path == QLatin1String("/videos")) {
 112                 setViewMode(DolphinView::IconsView);
 113                 setPreviewsShown(true);
 114                 setVisibleRoles({"text"});
 115             } else {
 116                 setViewMode(DolphinView::DetailsView);
 117                 setVisibleRoles({"text", "path", "modificationtime"});
 118             }
 119         } else if (useTrashView) {
 120             setViewMode(DolphinView::DetailsView);
 121             setVisibleRoles({"text", "path", "deletiontime"});
 122         } else if (useRecentDocumentsView || useDownloadsView) {
 123             setSortRole(QByteArrayLiteral("modificationtime"));
 124             setSortOrder(Qt::DescendingOrder);
 125             setSortFoldersFirst(false);
 126             setGroupedSorting(true);
 127
 128             if (useRecentDocumentsView) {
 129                 setViewMode(DolphinView::DetailsView);
 130                 setVisibleRoles({"text", "path", "modificationtime"});
 131             }
 132         } else {
 133             // The global view-properties act as default for directories without
 134             // any view-property configuration. Constructing a ViewProperties
 135             // instance for an empty QUrl ensures that the global view-properties
 136             // are loaded.
 137             QUrl emptyUrl;
 138             ViewProperties defaultProps(emptyUrl);
 139             setDirProperties(defaultProps);
 140
 141             m_changedProps = false;
 142         }
 143     }
 144
 145     if (m_node->version() < CurrentViewPropertiesVersion) {
 146         // The view-properties have an outdated version. Convert the properties
 147         // to the changes of the current version.
 148         if (m_node->version() < AdditionalInfoViewPropertiesVersion) {
 149             convertAdditionalInfo();
 150             Q_ASSERT(m_node->version() == AdditionalInfoViewPropertiesVersion);
 151         }
 152
 153         if (m_node->version() < NameRolePropertiesVersion) {
 154             convertNameRoleToTextRole();
 155             Q_ASSERT(m_node->version() == NameRolePropertiesVersion);
 156         }
 157
 158         if (m_node->version() < DateRolePropertiesVersion) {
 159             convertDateRoleToModificationTimeRole();
 160             Q_ASSERT(m_node->version() == DateRolePropertiesVersion);
 161         }
 162
 163         m_node->setVersion(CurrentViewPropertiesVersion);
 164     }
 165 }
 166
 167 ViewProperties::~ViewProperties()
 168 {
 169     if (m_changedProps && m_autoSave) {
 170         save();
 171     }
 172
 173     delete m_node;
 174     m_node = nullptr;
 175 }
 176
 177 void ViewProperties::setViewMode(DolphinView::Mode mode)
 178 {
 179     if (m_node->viewMode() != mode) {
 180         m_node->setViewMode(mode);
 181         update();
 182     }
 183 }
 184
 185 DolphinView::Mode ViewProperties::viewMode() const
 186 {
 187     const int mode = qBound(0, m_node->viewMode(), 2);
 188     return static_cast<DolphinView::Mode>(mode);
 189 }
 190
 191 void ViewProperties::setPreviewsShown(bool show)
 192 {
 193     if (m_node->previewsShown() != show) {
 194         m_node->setPreviewsShown(show);
 195         update();
 196     }
 197 }
 198
 199 bool ViewProperties::previewsShown() const
 200 {
 201     return m_node->previewsShown();
 202 }
 203
 204 void ViewProperties::setHiddenFilesShown(bool show)
 205 {
 206     if (m_node->hiddenFilesShown() != show) {
 207         m_node->setHiddenFilesShown(show);
 208         update();
 209     }
 210 }
 211
 212 void ViewProperties::setGroupedSorting(bool grouped)
 213 {
 214     if (m_node->groupedSorting() != grouped) {
 215         m_node->setGroupedSorting(grouped);
 216         update();
 217     }
 218 }
 219
 220 bool ViewProperties::groupedSorting() const
 221 {
 222     return m_node->groupedSorting();
 223 }
 224
 225 bool ViewProperties::hiddenFilesShown() const
 226 {
 227     return m_node->hiddenFilesShown();
 228 }
 229
 230 void ViewProperties::setSortRole(const QByteArray &role)
 231 {
 232     if (m_node->sortRole() != role) {
 233         m_node->setSortRole(role);
 234         update();
 235     }
 236 }
 237
 238 QByteArray ViewProperties::sortRole() const
 239 {
 240     return m_node->sortRole().toLatin1();
 241 }
 242
 243 void ViewProperties::setSortOrder(Qt::SortOrder sortOrder)
 244 {
 245     if (m_node->sortOrder() != sortOrder) {
 246         m_node->setSortOrder(sortOrder);
 247         update();
 248     }
 249 }
 250
 251 Qt::SortOrder ViewProperties::sortOrder() const
 252 {
 253     return static_cast<Qt::SortOrder>(m_node->sortOrder());
 254 }
 255
 256 void ViewProperties::setSortFoldersFirst(bool foldersFirst)
 257 {
 258     if (m_node->sortFoldersFirst() != foldersFirst) {
 259         m_node->setSortFoldersFirst(foldersFirst);
 260         update();
 261     }
 262 }
 263
 264 bool ViewProperties::sortFoldersFirst() const
 265 {
 266     return m_node->sortFoldersFirst();
 267 }
 268
 269 void ViewProperties::setSortHiddenLast(bool hiddenLast)
 270 {
 271     if (m_node->sortHiddenLast() != hiddenLast) {
 272         m_node->setSortHiddenLast(hiddenLast);
 273         update();
 274     }
 275 }
 276
 277 bool ViewProperties::sortHiddenLast() const
 278 {
 279     return m_node->sortHiddenLast();
 280 }
 281
 282 void ViewProperties::setVisibleRoles(const QList<QByteArray> &roles)
 283 {
 284     if (roles == visibleRoles()) {
 285         return;
 286     }
 287
 288     // See ViewProperties::visibleRoles() for the storage format
 289     // of the additional information.
 290
 291     // Remove the old values stored for the current view-mode
 292     const QStringList oldVisibleRoles = m_node->visibleRoles();
 293     const QString prefix = viewModePrefix();
 294     QStringList newVisibleRoles = oldVisibleRoles;
 295     for (int i = newVisibleRoles.count() - 1; i >= 0; --i) {
 296         if (newVisibleRoles[i].startsWith(prefix)) {
 297             newVisibleRoles.removeAt(i);
 298         }
 299     }
 300
 301     // Add the updated values for the current view-mode
 302     newVisibleRoles.reserve(roles.count());
 303     for (const QByteArray &role : roles) {
 304         newVisibleRoles.append(prefix + role);
 305     }
 306
 307     if (oldVisibleRoles != newVisibleRoles) {
 308         const bool markCustomizedDetails = (m_node->viewMode() == DolphinView::DetailsView) && !newVisibleRoles.contains(CustomizedDetailsString);
 309         if (markCustomizedDetails) {
 310             // The additional information of the details-view has been modified. Set a marker,
 311             // so that it is allowed to also show no additional information without doing the
 312             // fallback to show the size and date per default.
 313             newVisibleRoles.append(CustomizedDetailsString);
 314         }
 315
 316         m_node->setVisibleRoles(newVisibleRoles);
 317         update();
 318     }
 319 }
 320
 321 QList<QByteArray> ViewProperties::visibleRoles() const
 322 {
 323     // The shown additional information is stored for each view-mode separately as
 324     // string with the view-mode as prefix. Example:
 325     //
 326     // AdditionalInfo=Details_size,Details_date,Details_owner,Icons_size
 327     //
 328     // To get the representation as QList<QByteArray>, the current
 329     // view-mode must be checked and the values of this mode added to the list.
 330     //
 331     // For the details-view a special case must be respected: Per default the size
 332     // and date should be shown without creating a .directory file. Only if
 333     // the user explicitly has modified the properties of the details view (marked
 334     // by "CustomizedDetails"), also a details-view with no additional information
 335     // is accepted.
 336
 337     QList<QByteArray> roles{"text"};
 338
 339     // Iterate through all stored keys and append all roles that match to
 340     // the current view mode.
 341     const QString prefix = viewModePrefix();
 342     const int prefixLength = prefix.length();
 343
 344     const QStringList visibleRoles = m_node->visibleRoles();
 345     for (const QString &visibleRole : visibleRoles) {
 346         if (visibleRole.startsWith(prefix)) {
 347             const QByteArray role = visibleRole.right(visibleRole.length() - prefixLength).toLatin1();
 348             if (role != "text") {
 349                 roles.append(role);
 350             }
 351         }
 352     }
 353
 354     // For the details view the size and date should be shown per default
 355     // until the additional information has been explicitly changed by the user
 356     const bool useDefaultValues = roles.count() == 1 // "text"
 357         && (m_node->viewMode() == DolphinView::DetailsView) && !visibleRoles.contains(CustomizedDetailsString);
 358     if (useDefaultValues) {
 359         roles.append("size");
 360         roles.append("modificationtime");
 361     }
 362
 363     return roles;
 364 }
 365
 366 void ViewProperties::setHeaderColumnWidths(const QList<int> &widths)
 367 {
 368     if (m_node->headerColumnWidths() != widths) {
 369         m_node->setHeaderColumnWidths(widths);
 370         update();
 371     }
 372 }
 373
 374 QList<int> ViewProperties::headerColumnWidths() const
 375 {
 376     return m_node->headerColumnWidths();
 377 }
 378
 379 void ViewProperties::setDirProperties(const ViewProperties &props)
 380 {
 381     setViewMode(props.viewMode());
 382     setPreviewsShown(props.previewsShown());
 383     setHiddenFilesShown(props.hiddenFilesShown());
 384     setGroupedSorting(props.groupedSorting());
 385     setSortRole(props.sortRole());
 386     setSortOrder(props.sortOrder());
 387     setSortFoldersFirst(props.sortFoldersFirst());
 388     setSortHiddenLast(props.sortHiddenLast());
 389     setVisibleRoles(props.visibleRoles());
 390     setHeaderColumnWidths(props.headerColumnWidths());
 391     m_node->setVersion(props.m_node->version());
 392 }
 393
 394 void ViewProperties::setAutoSaveEnabled(bool autoSave)
 395 {
 396     m_autoSave = autoSave;
 397 }
 398
 399 bool ViewProperties::isAutoSaveEnabled() const
 400 {
 401     return m_autoSave;
 402 }
 403
 404 void ViewProperties::update()
 405 {
 406     m_changedProps = true;
 407     m_node->setTimestamp(QDateTime::currentDateTime());
 408 }
 409
 410 void ViewProperties::save()
 411 {
 412     qCDebug(DolphinDebug) << "Saving view-properties to" << m_filePath;
 413     QDir dir;
 414     dir.mkpath(m_filePath);
 415     m_node->setVersion(CurrentViewPropertiesVersion);
 416     m_node->save();
 417     m_changedProps = false;
 418 }
 419
 420 bool ViewProperties::exist() const
 421 {
 422     const QString file = m_filePath + QDir::separator() + ViewPropertiesFileName;
 423     return QFile::exists(file);
 424 }
 425
 426 QString ViewProperties::destinationDir(const QString &subDir) const
 427 {
 428     QString path = QStandardPaths::writableLocation(QStandardPaths::AppDataLocation);
 429     path.append("/view_properties/").append(subDir);
 430     return path;
 431 }
 432
 433 QString ViewProperties::viewModePrefix() const
 434 {
 435     QString prefix;
 436
 437     switch (m_node->viewMode()) {
 438     case DolphinView::IconsView:
 439         prefix = QStringLiteral("Icons_");
 440         break;
 441     case DolphinView::CompactView:
 442         prefix = QStringLiteral("Compact_");
 443         break;
 444     case DolphinView::DetailsView:
 445         prefix = QStringLiteral("Details_");
 446         break;
 447     default:
 448         qCWarning(DolphinDebug) << "Unknown view-mode of the view properties";
 449     }
 450
 451     return prefix;
 452 }
 453
 454 void ViewProperties::convertAdditionalInfo()
 455 {
 456     QStringList visibleRoles = m_node->visibleRoles();
 457
 458     const QStringList additionalInfo = m_node->additionalInfo();
 459     if (!additionalInfo.isEmpty()) {
 460         // Convert the obsolete values like Icons_Size, Details_Date, ...
 461         // to Icons_size, Details_date, ... where the suffix just represents
 462         // the internal role. One special-case must be handled: "LinkDestination"
 463         // has been used for "destination".
 464         visibleRoles.reserve(visibleRoles.count() + additionalInfo.count());
 465         for (const QString &info : additionalInfo) {
 466             QString visibleRole = info;
 467             int index = visibleRole.indexOf('_');
 468             if (index >= 0 && index + 1 < visibleRole.length()) {
 469                 ++index;
 470                 if (visibleRole[index] == QLatin1Char('L')) {
 471                     visibleRole.replace(QLatin1String("LinkDestination"), QLatin1String("destination"));
 472                 } else {
 473                     visibleRole[index] = visibleRole[index].toLower();
 474                 }
 475             }
 476             if (!visibleRoles.contains(visibleRole)) {
 477                 visibleRoles.append(visibleRole);
 478             }
 479         }
 480     }
 481
 482     m_node->setAdditionalInfo(QStringList());
 483     m_node->setVisibleRoles(visibleRoles);
 484     m_node->setVersion(AdditionalInfoViewPropertiesVersion);
 485     update();
 486 }
 487
 488 void ViewProperties::convertNameRoleToTextRole()
 489 {
 490     QStringList visibleRoles = m_node->visibleRoles();
 491     for (int i = 0; i < visibleRoles.count(); ++i) {
 492         if (visibleRoles[i].endsWith(QLatin1String("_name"))) {
 493             const int leftLength = visibleRoles[i].length() - 5;
 494             visibleRoles[i] = visibleRoles[i].left(leftLength) + "_text";
 495         }
 496     }
 497
 498     QString sortRole = m_node->sortRole();
 499     if (sortRole == QLatin1String("name")) {
 500         sortRole = QStringLiteral("text");
 501     }
 502
 503     m_node->setVisibleRoles(visibleRoles);
 504     m_node->setSortRole(sortRole);
 505     m_node->setVersion(NameRolePropertiesVersion);
 506     update();
 507 }
 508
 509 void ViewProperties::convertDateRoleToModificationTimeRole()
 510 {
 511     QStringList visibleRoles = m_node->visibleRoles();
 512     for (int i = 0; i < visibleRoles.count(); ++i) {
 513         if (visibleRoles[i].endsWith(QLatin1String("_date"))) {
 514             const int leftLength = visibleRoles[i].length() - 5;
 515             visibleRoles[i] = visibleRoles[i].left(leftLength) + "_modificationtime";
 516         }
 517     }
 518
 519     QString sortRole = m_node->sortRole();
 520     if (sortRole == QLatin1String("date")) {
 521         sortRole = QStringLiteral("modificationtime");
 522     }
 523
 524     m_node->setVisibleRoles(visibleRoles);
 525     m_node->setSortRole(sortRole);
 526     m_node->setVersion(DateRolePropertiesVersion);
 527     update();
 528 }
 529
 530 bool ViewProperties::isPartOfHome(const QString &filePath)
 531 {
 532     // For performance reasons cache the path in a static QString
 533     // (see QDir::homePath() for more details)
 534     static QString homePath;
 535     if (homePath.isEmpty()) {
 536         homePath = QDir::homePath();
 537         Q_ASSERT(!homePath.isEmpty());
 538     }
 539
 540     return filePath.startsWith(homePath);
 541 }
 542
 543 QString ViewProperties::directoryHashForUrl(const QUrl &url)
 544 {
 545     const QByteArray hashValue = QCryptographicHash::hash(url.toEncoded(), QCryptographicHash::Sha1);
 546     QString hashString = hashValue.toBase64();
 547     hashString.replace('/', '-');
 548     return hashString;
 549 }