src/dolphinview.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006-2009 by Peter Penz <peter.penz@gmx.at>             *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21
  22 #ifndef DOLPHINVIEW_H
  23 #define DOLPHINVIEW_H
  24
  25 #include <config-nepomuk.h>
  26
  27 #include "libdolphin_export.h"
  28
  29 #include <kparts/part.h>
  30 #include <kfileitem.h>
  31 #include <kfileitemdelegate.h>
  32 #include <kio/fileundomanager.h>
  33 #include <kio/job.h>
  34
  35 #include <QBoxLayout>
  36 #include <QKeyEvent>
  37 #include <QLinkedList>
  38 #include <QListView>
  39 #include <QSet>
  40 #include <QWidget>
  41
  42 typedef KIO::FileUndoManager::CommandType CommandType;
  43
  44 class DolphinController;
  45 class DolphinColumnViewContainer;
  46 class DolphinDetailsView;
  47 class DolphinIconsView;
  48 class DolphinMainWindow;
  49 class DolphinModel;
  50 class DolphinSortFilterProxyModel;
  51 class KFilePreviewGenerator;
  52 class KAction;
  53 class KActionCollection;
  54 class KDirLister;
  55 class KUrl;
  56 class ViewProperties;
  57
  58 /**
  59  * @short Represents a view for the directory content.
  60  *
  61  * View modes for icons, details and columns are supported. It's
  62  * possible to adjust:
  63  * - sort order
  64  * - sort type
  65  * - show hidden files
  66  * - show previews
  67  *
  68  * @see DolphinIconsView
  69  * @see DolphinDetailsView
  70  * @see DolphinColumnView
  71  */
  72 class LIBDOLPHINPRIVATE_EXPORT DolphinView : public QWidget
  73 {
  74     Q_OBJECT
  75
  76 public:
  77     /**
  78      * Defines the view mode for a directory. The view mode
  79      * can be defined when constructing a DolphinView. The
  80      * view mode is automatically updated if the directory itself
  81      * defines a view mode (see class ViewProperties for details).
  82      */
  83     enum Mode
  84     {
  85         /**
  86          * The directory items are shown as icons including an
  87          * icon name.
  88          */
  89         IconsView = 0,
  90
  91         /**
  92          * The icon, the name and at least the size of the directory
  93          * items are shown in a table. It is possible to add columns
  94          * for date, group and permissions.
  95          */
  96         DetailsView = 1,
  97
  98         /**
  99          * Each folder is shown in a separate column.
 100          */
 101         ColumnView = 2,
 102         MaxModeEnum = ColumnView
 103     };
 104
 105     /** Defines the sort order for the items of a directory. */
 106     enum Sorting
 107     {
 108         SortByName = 0,
 109         SortBySize,
 110         SortByDate,
 111         SortByPermissions,
 112         SortByOwner,
 113         SortByGroup,
 114         SortByType,
 115         SortByRating,
 116         SortByTags,
 117         MaxSortEnum = SortByTags
 118     };
 119
 120     /**
 121      * @param parent           Parent widget of the view.
 122      * @param url              Specifies the content which should be shown.
 123      * @param proxyModel       Used proxy model which specifies the sorting. The
 124      *                         model is not owned by the view and won't get
 125      *                         deleted.
 126      */
 127     DolphinView(QWidget* parent,
 128                 const KUrl& url,
 129                 DolphinSortFilterProxyModel* proxyModel);
 130
 131     virtual ~DolphinView();
 132
 133     /**
 134      * Returns the current active URL, where all actions are applied.
 135      * The URL navigator is synchronized with this URL.
 136      */
 137     const KUrl& url() const;
 138
 139     /**
 140      * Returns the root URL of the view, which is defined as the first
 141      * visible path of DolphinView::url(). Usually the root URL is
 142      * equal to DolphinView::url(), but in the case of the column view
 143      * when 2 columns are shown, the root URL might be:
 144      * /home/peter/Documents
 145      * and DolphinView::url() might return
 146      * /home/peter/Documents/Music/
 147      */
 148     KUrl rootUrl() const;
 149
 150     /**
 151      * If \a active is true, the view will marked as active. The active
 152      * view is defined as view where all actions are applied to.
 153      */
 154     void setActive(bool active);
 155     bool isActive() const;
 156
 157     /**
 158      * Changes the view mode for the current directory to \a mode.
 159      * If the view properties should be remembered for each directory
 160      * (GeneralSettings::globalViewProps() returns false), then the
 161      * changed view mode will be stored automatically.
 162      */
 163     void setMode(Mode mode);
 164     Mode mode() const;
 165
 166     /** See setShowPreview */
 167     bool showPreview() const;
 168
 169     /** See setShowHiddenFiles */
 170     bool showHiddenFiles() const;
 171
 172     /** See setCategorizedSorting */
 173     bool categorizedSorting() const;
 174
 175     /**
 176      * Returns true, if the categorized sorting is supported by the current
 177      * used mode (see DolphinView::setMode()). Currently only DolphinView::IconsView
 178      * supports categorizations. To check whether the categorized
 179      * sorting is set, use DolphinView::categorizedSorting().
 180      */
 181     bool supportsCategorizedSorting() const;
 182
 183     /**
 184      * Selects all items.
 185      * @see DolphinView::selectedItems()
 186      */
 187     void selectAll();
 188
 189     /**
 190      * Inverts the current selection: selected items get unselected,
 191      * unselected items get selected.
 192      * @see DolphinView::selectedItems()
 193      */
 194     void invertSelection();
 195
 196     /** Returns true, if at least one item is selected. */
 197     bool hasSelection() const;
 198
 199     void clearSelection();
 200
 201     /**
 202      * Returns the selected items. The list is empty if no item has been
 203      * selected.
 204      * @see DolphinView::selectedUrls()
 205      */
 206     KFileItemList selectedItems() const;
 207
 208     /**
 209      * Returns a list of URLs for all selected items. An empty list
 210      * is returned, if no item is selected.
 211      * @see DolphinView::selectedItems()
 212      */
 213     KUrl::List selectedUrls() const;
 214
 215     /**
 216      * Returns the number of selected items (this is faster than
 217      * invoking selectedItems().count()).
 218      */
 219     int selectedItemsCount() const;
 220
 221     /**
 222      * Sets the upper left position of the view content
 223      * to (x,y). The content of the view might be larger than the visible area
 224      * and hence a scrolling must be done.
 225      */
 226     void setContentsPosition(int x, int y);
 227
 228     /** Returns the upper left position of the view content. */
 229     QPoint contentsPosition() const;
 230
 231     /**
 232      * Sets the zoom level to \a level. It is assured that the used
 233      * level is adjusted to be inside the range ZoomLevelInfo::minimumLevel() and
 234      * ZoomLevelInfo::maximumLevel().
 235      */
 236     void setZoomLevel(int level);
 237     int zoomLevel() const;
 238
 239     /**
 240      * Returns true, if zooming in is possible. If false is returned,
 241      * the maximum zooming level has been reached.
 242      */
 243     bool isZoomInPossible() const;
 244
 245     /**
 246      * Returns true, if zooming out is possible. If false is returned,
 247      * the minimum zooming level has been reached.
 248      */
 249     bool isZoomOutPossible() const;
 250
 251     /** Sets the sort order of the items inside a directory (see DolphinView::Sorting). */
 252     void setSorting(Sorting sorting);
 253
 254     /** Returns the sort order of the items inside a directory (see DolphinView::Sorting). */
 255     Sorting sorting() const;
 256
 257     /** Sets the sort order (Qt::Ascending or Qt::Descending) for the items. */
 258     void setSortOrder(Qt::SortOrder order);
 259
 260     /** Returns the current used sort order (Qt::Ascending or Qt::Descending). */
 261     Qt::SortOrder sortOrder() const;
 262
 263     /** Sets a separate sorting with folders first (true) or a mixed sorting of files and folders (false). */
 264     void setSortFoldersFirst(bool foldersFirst);
 265
 266     /** Returns if files and folders are sorted separately or not. */
 267     bool sortFoldersFirst() const;
 268
 269     /** Sets the additional information which should be shown for the items. */
 270     void setAdditionalInfo(KFileItemDelegate::InformationList info);
 271
 272     /** Returns the additional information which should be shown for the items. */
 273     KFileItemDelegate::InformationList additionalInfo() const;
 274
 275     /** Reloads the current directory. */
 276     void reload();
 277
 278     /**
 279      * Refreshes the view to get synchronized with the (updated) Dolphin settings.
 280      * This method only needs to get invoked if the view settings for the Icons View,
 281      * Details View or Columns View have been changed.
 282      */
 283     void refresh();
 284
 285     /**
 286      * Changes the directory of the view to \a url. If \a rootUrl is empty, the view
 287      * properties from \a url are used for adjusting the view mode and the other properties.
 288      * If \a rootUrl is not empty, the view properties from the root URL are considered
 289      * instead. Specifying a root URL is only required if a view having a different root URL
 290      * (e. g. the column view) should be restored. Usually using DolphinView::setUrl()
 291      * is enough for changing the current URL.
 292      */
 293     void updateView(const KUrl& url, const KUrl& rootUrl);
 294
 295     /**
 296      * Filters the currently shown items by \a nameFilter. All items
 297      * which contain the given filter string will be shown.
 298      */
 299     void setNameFilter(const QString& nameFilter);
 300
 301     /**
 302      * Calculates the number of currently shown files into
 303      * \a fileCount and the number of folders into \a folderCount.
 304      * The size of all files is written into \a totalFileSize.
 305      * It is recommend using this method instead of asking the
 306      * directory lister or the model directly, as it takes
 307      * filtering and hierarchical previews into account.
 308      */
 309     void calculateItemCount(int& fileCount, int& folderCount, KIO::filesize_t& totalFileSize) const;
 310
 311     /**
 312      * Returns a textual representation of the state of the current
 313      * folder or selected items, suitable for use in the status bar.
 314      */
 315     QString statusBarText() const;
 316
 317     /**
 318      * Returns the version control actions that are provided for the items \p items.
 319      * Usually the actions are presented in the context menu.
 320      */
 321     QList<QAction*> versionControlActions(const KFileItemList& items) const;
 322
 323     /**
 324      * Updates the state of the 'Additional Information' actions in \a collection.
 325      */
 326     void updateAdditionalInfoActions(KActionCollection* collection);
 327
 328     /**
 329      * Returns the state of the paste action:
 330      * first is whether the action should be enabled
 331      * second is the text for the action
 332      */
 333     QPair<bool, QString> pasteInfo() const;
 334
 335     /**
 336      * If \a tabsForFiles is true, the signal tabRequested() will also
 337      * emitted also for files. Per default tabs for files is disabled
 338      * and hence the signal tabRequested() will only be emitted for
 339      * directories.
 340      */
 341     void setTabsForFilesEnabled(bool tabsForFiles);
 342     bool isTabsForFilesEnabled() const;
 343
 344     /**
 345      * Marks the item \a url as active item as soon as it has
 346      * been loaded by the directory lister. This is useful mark
 347      * the previously visited directory as active when going
 348      * back in history (the URL is known, but the item is not
 349      * loaded yet).
 350      */
 351     void activateItem(const KUrl& url);
 352
 353     /**
 354      * Returns true if the current view allows folders to be expanded,
 355      * i.e. presents a hierarchical view to the user.
 356      */
 357     bool itemsExpandable() const;
 358
 359 public slots:
 360     /**
 361      * Changes the directory to \a url. If the current directory is equal to
 362      * \a url, nothing will be done (use DolphinView::reload() instead).
 363      */
 364     void setUrl(const KUrl& url);
 365
 366     /**
 367      * Request of a selection change. The view will do its best to accommodate
 368      * the request, but it is not guaranteed that all items in \a selection
 369      * will actually get selected. The view will e.g. not select items which
 370      * are not in the currently displayed folder.
 371      */
 372     void changeSelection(const KFileItemList& selection);
 373
 374     /**
 375      * Triggers the renaming of the currently selected items, where
 376      * the user must input a new name for the items.
 377      */
 378     void renameSelectedItems();
 379
 380     /**
 381      * Moves all selected items to the trash.
 382      */
 383     void trashSelectedItems();
 384
 385     /**
 386      * Deletes all selected items.
 387      */
 388     void deleteSelectedItems();
 389
 390     /**
 391      * Copies all selected items to the clipboard and marks
 392      * the items as cut.
 393      */
 394     void cutSelectedItems();
 395
 396     /** Copies all selected items to the clipboard. */
 397     void copySelectedItems();
 398
 399     /** Pastes the clipboard data to this view. */
 400     void paste();
 401
 402     /**
 403      * Pastes the clipboard data into the currently selected
 404      * folder. If the current selection is not exactly one folder, no
 405      * paste operation is done.
 406      */
 407     void pasteIntoFolder();
 408
 409     /**
 410      * Turns on the file preview for the all files of the current directory,
 411      * if \a show is true.
 412      * If the view properties should be remembered for each directory
 413      * (GeneralSettings::globalViewProps() returns false), then the
 414      * preview setting will be stored automatically.
 415      */
 416     void setShowPreview(bool show);
 417
 418     /**
 419      * Shows all hidden files of the current directory,
 420      * if \a show is true.
 421      * If the view properties should be remembered for each directory
 422      * (GeneralSettings::globalViewProps() returns false), then the
 423      * show hidden file setting will be stored automatically.
 424      */
 425     void setShowHiddenFiles(bool show);
 426
 427     /**
 428      * Summarizes all sorted items by their category \a categorized
 429      * is true.
 430      * If the view properties should be remembered for each directory
 431      * (GeneralSettings::globalViewProps() returns false), then the
 432      * categorized sorting setting will be stored automatically.
 433      */
 434     void setCategorizedSorting(bool categorized);
 435
 436     /** Switches between an ascending and descending sorting order. */
 437     void toggleSortOrder();
 438
 439     /** Switches between a separate sorting (with folders first) and a mixed sorting of files and folders. */
 440     void toggleSortFoldersFirst();
 441
 442     /**
 443      * Switches on or off the displaying of additional information
 444      * as specified by \a action.
 445      */
 446     void toggleAdditionalInfo(QAction* action);
 447
 448 signals:
 449     /**
 450      * Is emitted if the view has been activated by e. g. a mouse click.
 451      */
 452     void activated();
 453
 454     /** Is emitted if URL of the view has been changed to \a url. */
 455     void urlChanged(const KUrl& url);
 456
 457     /**
 458      * Is emitted if the view requests a changing of the current
 459      * URL to \a url (see DolphinController::triggerUrlChangeRequest()).
 460      */
 461     void requestUrlChange(const KUrl& url);
 462
 463     /**
 464      * Is emitted when clicking on an item with the left mouse button.
 465      */
 466     void itemTriggered(const KFileItem& item);
 467
 468     /**
 469      * Is emitted if a new tab should be opened for the URL \a url.
 470      */
 471     void tabRequested(const KUrl& url);
 472
 473     /**
 474      * Is emitted if the view mode (IconsView, DetailsView,
 475      * PreviewsView) has been changed.
 476      */
 477     void modeChanged();
 478
 479     /** Is emitted if the 'show preview' property has been changed. */
 480     void showPreviewChanged();
 481
 482     /** Is emitted if the 'show hidden files' property has been changed. */
 483     void showHiddenFilesChanged();
 484
 485     /** Is emitted if the 'categorized sorting' property has been changed. */
 486     void categorizedSortingChanged();
 487
 488     /** Is emitted if the sorting by name, size or date has been changed. */
 489     void sortingChanged(DolphinView::Sorting sorting);
 490
 491     /** Is emitted if the sort order (ascending or descending) has been changed. */
 492     void sortOrderChanged(Qt::SortOrder order);
 493
 494     /** Is emitted if the sorting of files and folders (separate with folders first or mixed) has been changed. */
 495     void sortFoldersFirstChanged(bool foldersFirst);
 496
 497     /** Is emitted if the additional information shown for this view has been changed. */
 498     void additionalInfoChanged();
 499
 500     /** Is emitted if the zoom level has been changed by zooming in or out. */
 501     void zoomLevelChanged(int level);
 502
 503     /**
 504      * Is emitted if information of an item is requested to be shown e. g. in the panel.
 505      * If item is null, no item information request is pending.
 506      */
 507     void requestItemInfo(const KFileItem& item);
 508
 509     /** Is emitted if the contents has been moved to \a x, \a y. */
 510     void contentsMoved(int x, int y);
 511
 512     /**
 513      * Is emitted whenever the selection has been changed.
 514      */
 515     void selectionChanged(const KFileItemList& selection);
 516
 517     /**
 518      * Is emitted if a context menu is requested for the item \a item,
 519      * which is part of \a url. If the item is null, the context menu
 520      * for the URL should be shown and the custom actions \a customActions
 521      * will be added.
 522      */
 523     void requestContextMenu(const KFileItem& item,
 524                             const KUrl& url,
 525                             const QList<QAction*>& customActions);
 526
 527     /**
 528      * Is emitted if an information message with the content \a msg
 529      * should be shown.
 530      */
 531     void infoMessage(const QString& msg);
 532
 533     /**
 534      * Is emitted if an error message with the content \a msg
 535      * should be shown.
 536      */
 537     void errorMessage(const QString& msg);
 538
 539     /**
 540      * Is emitted if an "operation completed" message with the content \a msg
 541      * should be shown.
 542      */
 543     void operationCompletedMessage(const QString& msg);
 544
 545     /**
 546      * Is emitted after DolphinView::setUrl() has been invoked and
 547      * the path \a url is currently loaded. If this signal is emitted,
 548      * it is assured that the view contains already the correct root
 549      * URL and property settings.
 550      */
 551     void startedPathLoading(const KUrl& url);
 552
 553     /**
 554      * Emitted when KDirLister emits redirection.
 555      * Testcase: fish://localhost
 556      */
 557     void redirection(const KUrl& oldUrl, const KUrl& newUrl);
 558
 559 protected:
 560     /** @see QWidget::mouseReleaseEvent */
 561     virtual void mouseReleaseEvent(QMouseEvent* event);
 562     virtual bool eventFilter(QObject* watched, QEvent* event);
 563
 564 private slots:
 565     /**
 566      * Marks the view as active (DolphinView:isActive() will return true)
 567      * and emits the 'activated' signal if it is not already active.
 568      */
 569     void activate();
 570
 571     /**
 572      * If the item \a item is a directory, then this
 573      * directory will be loaded. If the  item is a file, the corresponding
 574      * application will get started.
 575      */
 576     void triggerItem(const KFileItem& index);
 577
 578     /**
 579      * Emits the signal \a selectionChanged() with a small delay. This is
 580      * because getting all file items for the signal can be an expensive
 581      * operation. Fast selection changes are collected in this case and
 582      * the signal is emitted only after no selection change has been done
 583      * within a small delay.
 584      */
 585     void emitDelayedSelectionChangedSignal();
 586
 587     /**
 588      * Is called by emitDelayedSelectionChangedSignal() and emits the
 589      * signal \a selectionChanged() with all selected file items as parameter.
 590      */
 591     void emitSelectionChangedSignal();
 592
 593     /**
 594      * Opens the context menu on position \a pos. The position
 595      * is used to check whether the context menu is related to an
 596      * item or to the viewport.
 597      */
 598     void openContextMenu(const QPoint& pos, const QList<QAction*>& customActions);
 599
 600     /**
 601      * Drops dragged URLs to the destination path \a destPath. If
 602      * the URLs are dropped above an item inside the destination path,
 603      * the item is indicated by \a destItem.
 604      */
 605     void dropUrls(const KFileItem& destItem,
 606                   const KUrl& destPath,
 607                   QDropEvent* event);
 608
 609     /**
 610      * Updates the view properties of the current URL to the
 611      * sorting given by \a sorting.
 612      */
 613     void updateSorting(DolphinView::Sorting sorting);
 614
 615     /**
 616      * Updates the view properties of the current URL to the
 617      * sort order given by \a order.
 618      */
 619     void updateSortOrder(Qt::SortOrder order);
 620
 621     /**
 622      * Updates the view properties of the current URL to the
 623      * sorting of files and folders (separate with folders first or mixed) given by \a foldersFirst.
 624      */
 625     void updateSortFoldersFirst(bool foldersFirst);
 626
 627     /**
 628      * Updates the view properties of the current URL to the
 629      * additional information given by \a info.
 630      */
 631     void updateAdditionalInfo(const KFileItemDelegate::InformationList& info);
 632
 633     /**
 634      * Emits the signal contentsMoved with the current coordinates
 635      * of the viewport as parameters.
 636      */
 637     void emitContentsMoved();
 638
 639     /**
 640      * Updates the status bar to show hover information for the
 641      * item \a item. If currently other items are selected,
 642      * no hover information is shown.
 643      * @see DolphinView::clearHoverInformation()
 644      */
 645     void showHoverInformation(const KFileItem& item);
 646
 647     /**
 648      * Clears the hover information shown in the status bar.
 649      * @see DolphinView::showHoverInformation().
 650      */
 651     void clearHoverInformation();
 652
 653     /**
 654      * Indicates in the status bar that the delete operation
 655      * of the job \a job has been finished.
 656      */
 657     void slotDeleteFileFinished(KJob* job);
 658
 659     /**
 660      * Is emitted if the controller requests a changing of the current
 661      * URL to \a url
 662      */
 663     void slotRequestUrlChange(const KUrl& url);
 664
 665     /**
 666      * Invoked when the directory lister has completed the loading of
 667      * items. Assures that pasted items and renamed items get seleced.
 668      */
 669     void slotDirListerCompleted();
 670
 671     /**
 672      * Is invoked when the KDirLister indicates refreshed items.
 673      */
 674     void slotRefreshItems();
 675
 676     /**
 677      * Observes the item with the URL \a url. As soon as the directory
 678      * model indicates that the item is available, the item will
 679      * get selected and it is assure that the item stays visible.
 680      *
 681      * @see selectAndScrollToCreatedItem()
 682      */
 683     void observeCreatedItem(const KUrl& url);
 684
 685     /**
 686      * Selects and scrolls to the item that got observed
 687      * by observeCreatedItem().
 688      */
 689     void selectAndScrollToCreatedItem();
 690
 691     /**
 692      * Restore selection after view refresh.
 693      */
 694     void restoreSelection();
 695
 696     /**
 697      * Called when a redirection happens.
 698      * Testcase: fish://localhost
 699      */
 700     void slotRedirection(const KUrl& oldUrl, const KUrl& newUrl);
 701
 702 private:
 703     void loadDirectory(const KUrl& url, bool reload = false);
 704
 705     /**
 706      * Applies the view properties which are defined by the current URL
 707      * to the DolphinView properties.
 708      */
 709     void applyViewProperties();
 710
 711     /**
 712      * Creates a new view representing the given view mode (DolphinView::mode()).
 713      * The current view will get deleted.
 714      */
 715     void createView();
 716
 717     void deleteView();
 718
 719     /**
 720      * Helper method for DolphinView::paste() and DolphinView::pasteIntoFolder().
 721      * Pastes the clipboard data into the URL \a url.
 722      */
 723     void pasteToUrl(const KUrl& url);
 724
 725     /**
 726      * Checks whether the current item view has the same zoom level
 727      * as \a oldZoomLevel. If this is not the case, the zoom level
 728      * of the controller is updated and a zoomLevelChanged() signal
 729      * is emitted.
 730      */
 731     void updateZoomLevel(int oldZoomLevel);
 732
 733     /**
 734      * Returns a list of URLs for all selected items. The list is
 735      * simplified, so that when the URLs are part of different tree
 736      * levels, only the parent is returned.
 737      */
 738     KUrl::List simplifiedSelectedUrls() const;
 739
 740     /**
 741      * Returns the MIME data for all selected items.
 742      */
 743     QMimeData* selectionMimeData() const;
 744
 745     /**
 746      * Is invoked after a paste operation or a drag & drop
 747      * operation and adds the filenames of all URLs from \a mimeData to
 748      * m_newFileNames. This allows to select all newly added
 749      * items in slotDirListerCompleted().
 750      */
 751     void addNewFileNames(const QMimeData* mimeData);
 752
 753 private:
 754     /**
 755      * Abstracts the access to the different view implementations
 756      * for icons-, details- and column-view.
 757      */
 758     class ViewAccessor
 759     {
 760     public:
 761         ViewAccessor(DolphinSortFilterProxyModel* proxyModel);
 762         ~ViewAccessor();
 763
 764         void createView(QWidget* parent, DolphinController* controller, Mode mode);
 765         void deleteView();
 766
 767         /**
 768          * Must be invoked before the URL has been changed and allows view implementations
 769          * like the column view to create a new column.
 770          */
 771         void prepareUrlChange(const KUrl& url);
 772
 773         QAbstractItemView* itemView() const;
 774         KFileItemDelegate* itemDelegate() const;
 775
 776         /**
 777          * Returns the widget that should be added to the layout as target. Usually
 778          * the item view itself is returned, but in the case of the column view
 779          * a container widget is returned.
 780          */
 781         QWidget* layoutTarget() const;
 782
 783         KUrl rootUrl() const;
 784
 785         bool supportsCategorizedSorting() const;
 786         bool itemsExpandable() const;
 787
 788         /**
 789          * Returns true, if a reloading of the items is required
 790          * when the additional information properties have been changed
 791          * by the user.
 792          */
 793         bool reloadOnAdditionalInfoChange() const;
 794
 795         DolphinModel* dirModel() const;
 796         DolphinSortFilterProxyModel* proxyModel() const;
 797         KDirLister* dirLister() const;
 798
 799     private:
 800         DolphinIconsView* m_iconsView;
 801         DolphinDetailsView* m_detailsView;
 802         DolphinColumnViewContainer* m_columnsContainer;
 803         DolphinSortFilterProxyModel* m_proxyModel;
 804         QAbstractItemView* m_dragSource;
 805     };
 806
 807     bool m_active : 1;
 808     bool m_showPreview : 1;
 809     bool m_loadingDirectory : 1;
 810     bool m_storedCategorizedSorting : 1;
 811     bool m_tabsForFiles : 1;
 812     bool m_isContextMenuOpen : 1;   // TODO: workaround for Qt-issue 207192
 813     bool m_ignoreViewProperties : 1;
 814     bool m_assureVisibleCurrentIndex : 1;
 815
 816     Mode m_mode;
 817
 818     DolphinMainWindow* m_mainWindow;
 819     QVBoxLayout* m_topLayout;
 820
 821     DolphinController* m_controller;
 822     ViewAccessor m_viewAccessor;
 823
 824     QItemSelectionModel* m_selectionModel; // allow to switch views without losing the selection
 825     QTimer* m_selectionChangedTimer;
 826
 827     KUrl m_rootUrl;
 828     KUrl m_activeItemUrl;
 829     KUrl m_createdItemUrl; // URL for a new item that got created by the "Create New..." menu
 830     KFileItemList m_selectedItems; // this is used for making the View to remember selections after F5
 831
 832     /**
 833      * Remembers the filenames that have been added by a paste operation
 834      * or a drag & drop operation. Allows to select the items in
 835      * slotDirListerCompleted().
 836      */
 837     QSet<QString> m_newFileNames;
 838 };
 839
 840 /// Allow using DolphinView::Mode in QVariant
 841 Q_DECLARE_METATYPE(DolphinView::Mode)
 842
 843 #endif // DOLPHINVIEW_H