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