src/dolphinview.h

   1 /***************************************************************************
   2  *   Copyright (C) 2006 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 VersionControlObserver;
  57 class ViewProperties;
  58
  59 /**
  60  * @short Represents a view for the directory content.
  61  *
  62  * View modes for icons, details and columns are supported. It's
  63  * possible to adjust:
  64  * - sort order
  65  * - sort type
  66  * - show hidden files
  67  * - show previews
  68  *
  69  * @see DolphinIconsView
  70  * @see DolphinDetailsView
  71  * @see DolphinColumnView
  72  */
  73 class LIBDOLPHINPRIVATE_EXPORT DolphinView : public QWidget
  74 {
  75     Q_OBJECT
  76
  77 public:
  78     /**
  79      * Defines the view mode for a directory. The view mode
  80      * can be defined when constructing a DolphinView. The
  81      * view mode is automatically updated if the directory itself
  82      * defines a view mode (see class ViewProperties for details).
  83      */
  84     enum Mode
  85     {
  86         /**
  87          * The directory items are shown as icons including an
  88          * icon name.
  89          */
  90         IconsView = 0,
  91
  92         /**
  93          * The icon, the name and at least the size of the directory
  94          * items are shown in a table. It is possible to add columns
  95          * for date, group and permissions.
  96          */
  97         DetailsView = 1,
  98
  99         /**
 100          * Each folder is shown in a separate column.
 101          */
 102         ColumnView = 2,
 103         MaxModeEnum = ColumnView
 104     };
 105
 106     /** Defines the sort order for the items of a directory. */
 107     enum Sorting
 108     {
 109         SortByName = 0,
 110         SortBySize,
 111         SortByDate,
 112         SortByPermissions,
 113         SortByOwner,
 114         SortByGroup,
 115         SortByType,
 116         SortByRating,
 117         SortByTags,
 118         MaxSortEnum = SortByTags
 119     };
 120
 121     /**
 122      * @param parent           Parent widget of the view.
 123      * @param url              Specifies the content which should be shown.
 124      * @param proxyModel       Used proxy model which specifies the sorting. The
 125      *                         model is not owned by the view and won't get
 126      *                         deleted.
 127      */
 128     DolphinView(QWidget* parent,
 129                 const KUrl& url,
 130                 DolphinSortFilterProxyModel* proxyModel);
 131
 132     virtual ~DolphinView();
 133
 134     /**
 135      * Returns the current active URL, where all actions are applied.
 136      * The URL navigator is synchronized with this URL.
 137      */
 138     const KUrl& url() const;
 139
 140     /**
 141      * Returns the root URL of the view, which is defined as the first
 142      * visible path of DolphinView::url(). Usually the root URL is
 143      * equal to DolphinView::url(), but in the case of the column view
 144      * when 2 columns are shown, the root URL might be:
 145      * /home/peter/Documents
 146      * and DolphinView::url() might return
 147      * /home/peter/Documents/Music/
 148      */
 149     KUrl rootUrl() const;
 150
 151     /**
 152      * If \a active is true, the view will marked as active. The active
 153      * view is defined as view where all actions are applied to.
 154      */
 155     void setActive(bool active);
 156     bool isActive() const;
 157
 158     /**
 159      * Changes the view mode for the current directory to \a mode.
 160      * If the view properties should be remembered for each directory
 161      * (GeneralSettings::globalViewProps() returns false), then the
 162      * changed view mode will be stored automatically.
 163      */
 164     void setMode(Mode mode);
 165     Mode mode() const;
 166
 167     /** See setShowPreview */
 168     bool showPreview() const;
 169
 170     /** See setShowHiddenFiles */
 171     bool showHiddenFiles() const;
 172
 173     /** See setCategorizedSorting */
 174     bool categorizedSorting() const;
 175
 176     /**
 177      * Returns true, if the categorized sorting is supported by the current
 178      * used mode (see DolphinView::setMode()). Currently only DolphinView::IconsView
 179      * supports categorizations. To check whether the categorized
 180      * sorting is set, use DolphinView::categorizedSorting().
 181      */
 182     bool supportsCategorizedSorting() const;
 183
 184     /**
 185      * Selects all items.
 186      * @see DolphinView::selectedItems()
 187      */
 188     void selectAll();
 189
 190     /**
 191      * Inverts the current selection: selected items get unselected,
 192      * unselected items get selected.
 193      * @see DolphinView::selectedItems()
 194      */
 195     void invertSelection();
 196
 197     /** Returns true, if at least one item is selected. */
 198     bool hasSelection() const;
 199
 200     void clearSelection();
 201
 202     /**
 203      * Returns the selected items. The list is empty if no item has been
 204      * selected.
 205      * @see DolphinView::selectedUrls()
 206      */
 207     KFileItemList selectedItems() const;
 208
 209     /**
 210      * Returns a list of URLs for all selected items. An empty list
 211      * is returned, if no item is selected.
 212      * @see DolphinView::selectedItems()
 213      */
 214     KUrl::List selectedUrls() const;
 215
 216     /**
 217      * Returns the number of selected items (this is faster than
 218      * invoking selectedItems().count()).
 219      */
 220     int selectedItemsCount() const;
 221
 222     /**
 223      * Sets the upper left position of the view content
 224      * to (x,y). The content of the view might be larger than the visible area
 225      * and hence a scrolling must be done.
 226      */
 227     void setContentsPosition(int x, int y);
 228
 229     /** Returns the upper left position of the view content. */
 230     QPoint contentsPosition() const;
 231
 232     /**
 233      * Sets the zoom level to \a level. It is assured that the used
 234      * level is adjusted to be inside the range ZoomLevelInfo::minimumLevel() and
 235      * ZoomLevelInfo::maximumLevel().
 236      */
 237     void setZoomLevel(int level);
 238     int zoomLevel() const;
 239
 240     /**
 241      * Returns true, if zooming in is possible. If false is returned,
 242      * the maximum zooming level has been reached.
 243      */
 244     bool isZoomInPossible() const;
 245
 246     /**
 247      * Returns true, if zooming out is possible. If false is returned,
 248      * the minimum zooming level has been reached.
 249      */
 250     bool isZoomOutPossible() const;
 251
 252     /** Sets the sort order of the items inside a directory (see DolphinView::Sorting). */
 253     void setSorting(Sorting sorting);
 254
 255     /** Returns the sort order of the items inside a directory (see DolphinView::Sorting). */
 256     Sorting sorting() const;
 257
 258     /** Sets the sort order (Qt::Ascending or Qt::Descending) for the items. */
 259     void setSortOrder(Qt::SortOrder order);
 260
 261     /** Returns the current used sort order (Qt::Ascending or Qt::Descending). */
 262     Qt::SortOrder sortOrder() const;
 263
 264     /** Sets a separate sorting with folders first (true) or a mixed sorting of files and folders (false). */
 265     void setSortFoldersFirst(bool foldersFirst);
 266
 267     /** Returns if files and folders are sorted separately or not. */
 268     bool sortFoldersFirst() const;
 269
 270     /** Sets the additional information which should be shown for the items. */
 271     void setAdditionalInfo(KFileItemDelegate::InformationList info);
 272
 273     /** Returns the additional information which should be shown for the items. */
 274     KFileItemDelegate::InformationList additionalInfo() const;
 275
 276     /** Reloads the current directory. */
 277     void reload();
 278
 279     /**
 280      * Refreshes the view to get synchronized with the (updated) Dolphin settings.
 281      * This method only needs to get invoked if the view settings for the Icons View,
 282      * Details View or Columns View have been changed.
 283      */
 284     void refresh();
 285
 286     /**
 287      * Changes the directory of the view to \a url. If \a rootUrl is empty, the view
 288      * properties from \a url are used for adjusting the view mode and the other properties.
 289      * If \a rootUrl is not empty, the view properties from the root URL are considered
 290      * instead. Specifying a root URL is only required if a view having a different root URL
 291      * (e. g. the column view) should be restored. Usually using DolphinView::setUrl()
 292      * is enough for changing the current URL.
 293      */
 294     void updateView(const KUrl& url, const KUrl& rootUrl);
 295
 296     /**
 297      * Filters the currently shown items by \a nameFilter. All items
 298      * which contain the given filter string will be shown.
 299      */
 300     void setNameFilter(const QString& nameFilter);
 301
 302     /**
 303      * Calculates the number of currently shown files into
 304      * \a fileCount and the number of folders into \a folderCount.
 305      * The size of all files is written into \a totalFileSize.
 306      * It is recommend using this method instead of asking the
 307      * directory lister or the model directly, as it takes
 308      * filtering and hierarchical previews into account.
 309      */
 310     void calculateItemCount(int& fileCount, int& folderCount, KIO::filesize_t& totalFileSize) const;
 311
 312     /**
 313      * Returns a textual representation of the state of the current
 314      * folder or selected items, suitable for use in the status bar.
 315      */
 316     QString statusBarText() const;
 317
 318     /**
 319      * Returns the version control actions that are provided for the items \p items.
 320      * Usually the actions are presented in the context menu.
 321      */
 322     QList<QAction*> versionControlActions(const KFileItemList& items) const;
 323
 324     /**
 325      * Updates the state of the 'Additional Information' actions in \a collection.
 326      */
 327     void updateAdditionalInfoActions(KActionCollection* collection);
 328
 329     /**
 330      * Returns the state of the paste action:
 331      * first is whether the action should be enabled
 332      * second is the text for the action
 333      */
 334     QPair<bool, QString> pasteInfo() const;
 335
 336     /**
 337      * If \a tabsForFiles is true, the signal tabRequested() will also
 338      * emitted also for files. Per default tabs for files is disabled
 339      * and hence the signal tabRequested() will only be emitted for
 340      * directories.
 341      */
 342     void setTabsForFilesEnabled(bool tabsForFiles);
 343     bool isTabsForFilesEnabled() const;
 344
 345     /**
 346      * Marks the item \a url as active item as soon as it has
 347      * been loaded by the directory lister. This is useful mark
 348      * the previously visited directory as active when going
 349      * back in history (the URL is known, but the item is not
 350      * loaded yet).
 351      */
 352     void activateItem(const KUrl& url);
 353
 354     /**
 355      * Returns true if the current view allows folders to be expanded,
 356      * i.e. presents a hierarchical view to the user.
 357      */
 358     bool itemsExpandable() const;
 359
 360 public slots:
 361     /**
 362      * Changes the directory to \a url. If the current directory is equal to
 363      * \a url, nothing will be done (use DolphinView::reload() instead).
 364      */
 365     void setUrl(const KUrl& url);
 366
 367     /**
 368      * Request of a selection change. The view will do its best to accommodate
 369      * the request, but it is not guaranteed that all items in \a selection
 370      * will actually get selected. The view will e.g. not select items which
 371      * are not in the currently displayed folder.
 372      */
 373     void changeSelection(const KFileItemList& selection);
 374
 375     /**
 376      * Triggers the renaming of the currently selected items, where
 377      * the user must input a new name for the items.
 378      */
 379     void renameSelectedItems();
 380
 381     /**
 382      * Moves all selected items to the trash.
 383      */
 384     void trashSelectedItems();
 385
 386     /**
 387      * Deletes all selected items.
 388      */
 389     void deleteSelectedItems();
 390
 391     /**
 392      * Copies all selected items to the clipboard and marks
 393      * the items as cutted.
 394      */
 395     void cutSelectedItems();
 396
 397     /** Copies all selected items to the clipboard. */
 398     void copySelectedItems();
 399
 400     /** Pastes the clipboard data to this view. */
 401     void paste();
 402
 403     /**
 404      * Pastes the clipboard data into the currently selected
 405      * folder. If the current selection is not exactly one folder, no
 406      * paste operation is done.
 407      */
 408     void pasteIntoFolder();
 409
 410     /**
 411      * Turns on the file preview for the all files of the current directory,
 412      * if \a show is true.
 413      * If the view properties should be remembered for each directory
 414      * (GeneralSettings::globalViewProps() returns false), then the
 415      * preview setting will be stored automatically.
 416      */
 417     void setShowPreview(bool show);
 418
 419     /**
 420      * Shows all hidden files of the current directory,
 421      * if \a show is true.
 422      * If the view properties should be remembered for each directory
 423      * (GeneralSettings::globalViewProps() returns false), then the
 424      * show hidden file setting will be stored automatically.
 425      */
 426     void setShowHiddenFiles(bool show);
 427
 428     /**
 429      * Summarizes all sorted items by their category \a categorized
 430      * is true.
 431      * If the view properties should be remembered for each directory
 432      * (GeneralSettings::globalViewProps() returns false), then the
 433      * categorized sorting setting will be stored automatically.
 434      */
 435     void setCategorizedSorting(bool categorized);
 436
 437     /** Switches between an ascending and descending sorting order. */
 438     void toggleSortOrder();
 439
 440     /** Switches between a separate sorting (with folders first) and a mixed sorting of files and folders. */
 441     void toggleSortFoldersFirst();
 442
 443     /**
 444      * Switches on or off the displaying of additional information
 445      * as specified by \a action.
 446      */
 447     void toggleAdditionalInfo(QAction* action);
 448
 449 signals:
 450     /**
 451      * Is emitted if the view has been activated by e. g. a mouse click.
 452      */
 453     void activated();
 454
 455     /** Is emitted if URL of the view has been changed to \a url. */
 456     void urlChanged(const KUrl& url);
 457
 458     /**
 459      * Is emitted if the view requests a changing of the current
 460      * URL to \a url (see DolphinController::triggerUrlChangeRequest()).
 461      */
 462     void requestUrlChange(const KUrl& url);
 463
 464     /**
 465      * Is emitted when clicking on an item with the left mouse button.
 466      */
 467     void itemTriggered(const KFileItem& item);
 468
 469     /**
 470      * Is emitted if a new tab should be opened for the URL \a url.
 471      */
 472     void tabRequested(const KUrl& url);
 473
 474     /**
 475      * Is emitted if the view mode (IconsView, DetailsView,
 476      * PreviewsView) has been changed.
 477      */
 478     void modeChanged();
 479
 480     /** Is emitted if the 'show preview' property has been changed. */
 481     void showPreviewChanged();
 482
 483     /** Is emitted if the 'show hidden files' property has been changed. */
 484     void showHiddenFilesChanged();
 485
 486     /** Is emitted if the 'categorized sorting' property has been changed. */
 487     void categorizedSortingChanged();
 488
 489     /** Is emitted if the sorting by name, size or date has been changed. */
 490     void sortingChanged(DolphinView::Sorting sorting);
 491
 492     /** Is emitted if the sort order (ascending or descending) has been changed. */
 493     void sortOrderChanged(Qt::SortOrder order);
 494
 495     /** Is emitted if the sorting of files and folders (separate with folders first or mixed) has been changed. */
 496     void sortFoldersFirstChanged(bool foldersFirst);
 497
 498     /** Is emitted if the additional information shown for this view has been changed. */
 499     void additionalInfoChanged();
 500
 501     /** Is emitted if the zoom level has been changed by zooming in or out. */
 502     void zoomLevelChanged(int level);
 503
 504     /**
 505      * Is emitted if information of an item is requested to be shown e. g. in the panel.
 506      * If item is null, no item information request is pending.
 507      */
 508     void requestItemInfo(const KFileItem& item);
 509
 510     /** Is emitted if the contents has been moved to \a x, \a y. */
 511     void contentsMoved(int x, int y);
 512
 513     /**
 514      * Is emitted whenever the selection has been changed.
 515      */
 516     void selectionChanged(const KFileItemList& selection);
 517
 518     /**
 519      * Is emitted if a context menu is requested for the item \a item,
 520      * which is part of \a url. If the item is null, the context menu
 521      * for the URL should be shown and the custom actions \a customActions
 522      * will be added.
 523      */
 524     void requestContextMenu(const KFileItem& item,
 525                             const KUrl& url,
 526                             const QList<QAction*>& customActions);
 527
 528     /**
 529      * Is emitted if an information message with the content \a msg
 530      * should be shown.
 531      */
 532     void infoMessage(const QString& msg);
 533
 534     /**
 535      * Is emitted if an error message with the content \a msg
 536      * should be shown.
 537      */
 538     void errorMessage(const QString& msg);
 539
 540     /**
 541      * Is emitted if an "operation completed" message with the content \a msg
 542      * should be shown.
 543      */
 544     void operationCompletedMessage(const QString& msg);
 545
 546     /**
 547      * Is emitted after DolphinView::setUrl() has been invoked and
 548      * the path \a url is currently loaded. If this signal is emitted,
 549      * it is assured that the view contains already the correct root
 550      * URL and property settings.
 551      */
 552     void startedPathLoading(const KUrl& url);
 553
 554     /**
 555      * Emitted when KDirLister emits redirection.
 556      * Testcase: fish://localhost
 557      */
 558     void redirection(const KUrl& oldUrl, const KUrl& newUrl);
 559
 560 protected:
 561     /** @see QWidget::mouseReleaseEvent */
 562     virtual void mouseReleaseEvent(QMouseEvent* event);
 563     virtual void wheelEvent(QWheelEvent* event);
 564     virtual bool eventFilter(QObject* watched, QEvent* event);
 565
 566 private slots:
 567     /**
 568      * Marks the view as active (DolphinView:isActive() will return true)
 569      * and emits the 'activated' signal if it is not already active.
 570      */
 571     void activate();
 572
 573     /**
 574      * If the item \a item is a directory, then this
 575      * directory will be loaded. If the  item is a file, the corresponding
 576      * application will get started.
 577      */
 578     void triggerItem(const KFileItem& index);
 579
 580     /**
 581      * Emits the signal \a selectionChanged() with a small delay. This is
 582      * because getting all file items for the signal can be an expensive
 583      * operation. Fast selection changes are collected in this case and
 584      * the signal is emitted only after no selection change has been done
 585      * within a small delay.
 586      */
 587     void emitDelayedSelectionChangedSignal();
 588
 589     /**
 590      * Is called by emitDelayedSelectionChangedSignal() and emits the
 591      * signal \a selectionChanged() with all selected file items as parameter.
 592      */
 593     void emitSelectionChangedSignal();
 594
 595     /**
 596      * Opens the context menu on position \a pos. The position
 597      * is used to check whether the context menu is related to an
 598      * item or to the viewport.
 599      */
 600     void openContextMenu(const QPoint& pos, const QList<QAction*>& customActions);
 601
 602     /**
 603      * Drops dragged URLs to the destination path \a destPath. If
 604      * the URLs are dropped above an item inside the destination path,
 605      * the item is indicated by \a destItem.
 606      */
 607     void dropUrls(const KFileItem& destItem,
 608                   const KUrl& destPath,
 609                   QDropEvent* event);
 610
 611     /**
 612      * Updates the view properties of the current URL to the
 613      * sorting given by \a sorting.
 614      */
 615     void updateSorting(DolphinView::Sorting sorting);
 616
 617     /**
 618      * Updates the view properties of the current URL to the
 619      * sort order given by \a order.
 620      */
 621     void updateSortOrder(Qt::SortOrder order);
 622
 623     /**
 624      * Updates the view properties of the current URL to the
 625      * sorting of files and folders (separate with folders first or mixed) given by \a foldersFirst.
 626      */
 627     void updateSortFoldersFirst(bool foldersFirst);
 628
 629     /**
 630      * Updates the view properties of the current URL to the
 631      * additional information given by \a info.
 632      */
 633     void updateAdditionalInfo(const KFileItemDelegate::InformationList& info);
 634
 635     /**
 636      * Emits the signal contentsMoved with the current coordinates
 637      * of the viewport as parameters.
 638      */
 639     void emitContentsMoved();
 640
 641     /**
 642      * Updates the status bar to show hover information for the
 643      * item \a item. If currently other items are selected,
 644      * no hover information is shown.
 645      * @see DolphinView::clearHoverInformation()
 646      */
 647     void showHoverInformation(const KFileItem& item);
 648
 649     /**
 650      * Clears the hover information shown in the status bar.
 651      * @see DolphinView::showHoverInformation().
 652      */
 653     void clearHoverInformation();
 654
 655     /**
 656      * Indicates in the status bar that the delete operation
 657      * of the job \a job has been finished.
 658      */
 659     void slotDeleteFileFinished(KJob* job);
 660
 661     /**
 662      * Is emitted if the controller requests a changing of the current
 663      * URL to \a url
 664      */
 665     void slotRequestUrlChange(const KUrl& url);
 666
 667     /**
 668      * Invoked when the directory lister has completed the loading of
 669      * items. Assures that pasted items and renamed items get seleced.
 670      */
 671     void slotDirListerCompleted();
 672
 673     /**
 674      * Is invoked when the KDirLister indicates refreshed items.
 675      */
 676     void slotRefreshItems();
 677
 678     /**
 679      * If \a view can be positively identified as not being the source for the
 680      * current drag operation, deleteLater() it immediately.  Else stores
 681      * it for later deletion.
 682      */
 683     void deleteWhenNotDragSource(QAbstractItemView* view);
 684
 685     /**
 686      * Observes the item with the URL \a url. As soon as the directory
 687      * model indicates that the item is available, the item will
 688      * get selected and it is assure that the item stays visible.
 689      *
 690      * @see selectAndScrollToCreatedItem()
 691      */
 692     void observeCreatedItem(const KUrl& url);
 693
 694     /**
 695      * Selects and scrolls to the item that got observed
 696      * by observeCreatedItem().
 697      */
 698     void selectAndScrollToCreatedItem();
 699
 700     /**
 701      * Restore selection after view refresh.
 702      */
 703     void restoreSelection();
 704
 705 private:
 706     void loadDirectory(const KUrl& url, bool reload = false);
 707
 708     /**
 709      * Applies the view properties which are defined by the current URL
 710      * to the DolphinView properties.
 711      */
 712     void applyViewProperties();
 713
 714     /**
 715      * Creates a new view representing the given view mode (DolphinView::mode()).
 716      * The current view will get deleted.
 717      */
 718     void createView();
 719
 720     void deleteView();
 721
 722     void initializeView();
 723
 724     /**
 725      * Helper method for DolphinView::paste() and DolphinView::pasteIntoFolder().
 726      * Pastes the clipboard data into the URL \a url.
 727      */
 728     void pasteToUrl(const KUrl& url);
 729
 730     /**
 731      * Checks whether the current item view has the same zoom level
 732      * as \a oldZoomLevel. If this is not the case, the zoom level
 733      * of the controller is updated and a zoomLevelChanged() signal
 734      * is emitted.
 735      */
 736     void updateZoomLevel(int oldZoomLevel);
 737
 738     /**
 739      * Returns a list of URLs for all selected items. The list is
 740      * simplified, so that when the URLs are part of different tree
 741      * levels, only the parent is returned.
 742      */
 743     KUrl::List simplifiedSelectedUrls() const;
 744
 745     /**
 746      * Returns the MIME data for all selected items.
 747      */
 748     QMimeData* selectionMimeData() const;
 749
 750     /**
 751      * Is invoked after a paste operation or a drag & drop
 752      * operation and adds the filenames of all URLs from \a mimeData to
 753      * m_newFileNames. This allows to select all newly added
 754      * items in slotDirListerCompleted().
 755      */
 756     void addNewFileNames(const QMimeData* mimeData);
 757
 758 private:
 759     /**
 760      * Abstracts the access to the different view implementations
 761      * for icons-, details- and column-view.
 762      */
 763     class ViewAccessor
 764     {
 765     public:
 766         ViewAccessor(DolphinSortFilterProxyModel* proxyModel);
 767
 768         void createView(QWidget* parent, DolphinController* controller, Mode mode);
 769         void deleteView();
 770
 771         /**
 772          * Must be invoked before the URL has been changed and allows view implementations
 773          * like the column view to create a new column.
 774          */
 775         void prepareUrlChange(const KUrl& url);
 776
 777         QAbstractItemView* itemView() const;
 778         KFileItemDelegate* itemDelegate() const;
 779
 780         /**
 781          * Returns the widget that should be added to the layout as target. Usually
 782          * the item view itself is returned, but in the case of the column view
 783          * a container widget is returned.
 784          */
 785         QWidget* layoutTarget() const;
 786
 787         KUrl rootUrl() const;
 788
 789         bool supportsCategorizedSorting() const;
 790         bool hasExpandableFolders() const;
 791         bool itemsExpandable() const;
 792
 793         /**
 794          * Returns true, if a reloading of the items is required
 795          * when the additional information properties have been changed
 796          * by the user.
 797          */
 798         bool reloadOnAdditionalInfoChange() const;
 799
 800         DolphinModel* dirModel() const;
 801         DolphinSortFilterProxyModel* proxyModel() const;
 802         KDirLister* dirLister() const;
 803
 804     private:
 805         DolphinIconsView* m_iconsView;
 806         DolphinDetailsView* m_detailsView;
 807         DolphinColumnViewContainer* m_columnsContainer;
 808         DolphinSortFilterProxyModel* m_proxyModel;
 809     };
 810
 811     bool m_active : 1;
 812     bool m_showPreview : 1;
 813     bool m_loadingDirectory : 1;
 814     bool m_storedCategorizedSorting : 1;
 815     bool m_tabsForFiles : 1;
 816     bool m_isContextMenuOpen : 1;   // TODO: workaround for Qt-issue 207192
 817     bool m_ignoreViewProperties : 1;
 818     bool m_assureVisibleCurrentIndex : 1;
 819
 820     Mode m_mode;
 821
 822     DolphinMainWindow* m_mainWindow;
 823     QVBoxLayout* m_topLayout;
 824
 825     DolphinController* m_controller;
 826     ViewAccessor m_viewAccessor;
 827
 828     QItemSelectionModel* m_selectionModel;
 829     QTimer* m_selectionChangedTimer;
 830
 831     VersionControlObserver* m_versionControlObserver;
 832
 833     KUrl m_rootUrl;
 834     KUrl m_activeItemUrl;
 835     KUrl m_createdItemUrl; // URL for a new item that got created by the "Create New..." menu
 836     KFileItemList m_selectedItems; // this is used for making the View to remember selections after F5
 837
 838     /**
 839      * Remembers the filenames that have been added by a paste operation
 840      * or a drag & drop operation. Allows to select the items in
 841      * slotDirListerCompleted().
 842      */
 843     QSet<QString> m_newFileNames;
 844
 845     QAbstractItemView* m_expandedDragSource; // TODO: move to ViewAccessor
 846 };
 847
 848 /// Allow using DolphinView::Mode in QVariant
 849 Q_DECLARE_METATYPE(DolphinView::Mode)
 850
 851 #endif // DOLPHINVIEW_H