src/views/dolphinview.h

   1 /*
   2  * SPDX-FileCopyrightText: 2006-2009 Peter Penz <peter.penz19@gmail.com>
   3  * SPDX-FileCopyrightText: 2006 Gregor Kališnik <gregor@podnapisi.net>
   4  *
   5  * SPDX-License-Identifier: GPL-2.0-or-later
   6  */
   7
   8 #ifndef DOLPHINVIEW_H
   9 #define DOLPHINVIEW_H
  10
  11 #include "dolphin_export.h"
  12 #include "dolphintabwidget.h"
  13 #include "tooltips/tooltipmanager.h"
  14
  15 #include "config-dolphin.h"
  16 #include <KFileItem>
  17 #include <KIO/Job>
  18 #include <kio/fileundomanager.h>
  19 #include <kparts/part.h>
  20
  21 #include <QMimeData>
  22 #include <QPointer>
  23 #include <QUrl>
  24 #include <QWidget>
  25
  26 #include <memory>
  27
  28 typedef KIO::FileUndoManager::CommandType CommandType;
  29 class QVBoxLayout;
  30 class DolphinItemListView;
  31 class KFileItemModel;
  32 class KItemListContainer;
  33 class KItemModelBase;
  34 class KItemSet;
  35 class ToolTipManager;
  36 class VersionControlObserver;
  37 class ViewProperties;
  38 class QLabel;
  39 class QGraphicsSceneDragDropEvent;
  40 class QHelpEvent;
  41 class QProxyStyle;
  42 class QRegularExpression;
  43
  44 /**
  45  * @short Represents a view for the directory content.
  46  *
  47  * View modes for icons, compact and details are supported. It's
  48  * possible to adjust:
  49  * - sort order
  50  * - sort type
  51  * - show hidden files
  52  * - show previews
  53  * - enable grouping
  54  */
  55 class DOLPHIN_EXPORT DolphinView : public QWidget
  56 {
  57     Q_OBJECT
  58
  59 public:
  60     /**
  61      * Defines the view mode for a directory. The
  62      * view mode is automatically updated if the directory itself
  63      * defines a view mode (see class ViewProperties for details).
  64      */
  65     enum Mode {
  66         /**
  67          * The items are shown as icons with a name-label below.
  68          */
  69         IconsView = 0,
  70
  71         /**
  72          * The icon, the name and the size of the items are
  73          * shown per default as a table.
  74          */
  75         DetailsView,
  76
  77         /**
  78          * The items are shown as icons with the name-label aligned
  79          * to the right side.
  80          */
  81         CompactView
  82     };
  83
  84     /**
  85      * @param url              Specifies the content which should be shown.
  86      * @param parent           Parent widget of the view.
  87      */
  88     DolphinView(const QUrl &url, QWidget *parent);
  89
  90     ~DolphinView() override;
  91
  92     /**
  93      * Returns the current active URL, where all actions are applied.
  94      * The URL navigator is synchronized with this URL.
  95      */
  96     QUrl url() const;
  97
  98     /**
  99      * If \a active is true, the view will marked as active. The active
 100      * view is defined as view where all actions are applied to.
 101      */
 102     void setActive(bool active);
 103     bool isActive() const;
 104
 105     /**
 106      * Changes the view mode for the current directory to \a mode.
 107      * If the view properties should be remembered for each directory
 108      * (GeneralSettings::globalViewProps() returns false), then the
 109      * changed view mode will be stored automatically.
 110      */
 111     void setViewMode(Mode mode);
 112     Mode viewMode() const;
 113
 114     /**
 115      * Enables or disables a mode for quick and easy selection of items.
 116      */
 117     void setSelectionModeEnabled(bool enabled);
 118     bool selectionMode() const;
 119
 120     /**
 121      * Turns on the file preview for the all files of the current directory,
 122      * if \a show is true.
 123      * If the view properties should be remembered for each directory
 124      * (GeneralSettings::globalViewProps() returns false), then the
 125      * preview setting will be stored automatically.
 126      */
 127     void setPreviewsShown(bool show);
 128     bool previewsShown() const;
 129
 130     /**
 131      * Shows all hidden files of the current directory,
 132      * if \a show is true.
 133      * If the view properties should be remembered for each directory
 134      * (GeneralSettings::globalViewProps() returns false), then the
 135      * show hidden file setting will be stored automatically.
 136      */
 137     void setHiddenFilesShown(bool show);
 138     bool hiddenFilesShown() const;
 139
 140     /**
 141      * Turns on sorting by groups if \a enable is true.
 142      */
 143     void setGroupedSorting(bool grouped);
 144     bool groupedSorting() const;
 145
 146     /**
 147      * Returns the items of the view.
 148      */
 149     KFileItemList items() const;
 150
 151     /**
 152      * @return The number of items. itemsCount() is faster in comparison
 153      *         to items().count().
 154      */
 155     int itemsCount() const;
 156
 157     /**
 158      * Returns the selected items. The list is empty if no item has been
 159      * selected.
 160      */
 161     KFileItemList selectedItems() const;
 162
 163     /**
 164      * Returns the number of selected items (this is faster than
 165      * invoking selectedItems().count()).
 166      */
 167     int selectedItemsCount() const;
 168
 169     /**
 170      * Marks the items indicated by \p urls to get selected after the
 171      * directory DolphinView::url() has been loaded. Note that nothing
 172      * gets selected if no loading of a directory has been triggered
 173      * by DolphinView::setUrl() or DolphinView::reload().
 174      */
 175     void markUrlsAsSelected(const QList<QUrl> &urls);
 176
 177     /**
 178      * Marks the item indicated by \p url to be scrolled to and as the
 179      * current item after directory DolphinView::url() has been loaded.
 180      */
 181     void markUrlAsCurrent(const QUrl &url);
 182
 183     /**
 184      * All items that match the regular expression \a regexp will get selected
 185      * if \a enabled is true and deselected if \a enabled is false.
 186      *
 187      * Note that to match the whole string the pattern should be anchored:
 188      * - you can anchor the pattern with QRegularExpression::anchoredPattern()
 189      * - if you use QRegularExpresssion::wildcardToRegularExpression(), don't use
 190      *   QRegularExpression::anchoredPattern() as the former already returns an
 191      *   anchored pattern
 192      */
 193     void selectItems(const QRegularExpression &regexp, bool enabled);
 194
 195     /**
 196      * Sets the zoom level to \a level. It is assured that the used
 197      * level is adjusted to be inside the range ZoomLevelInfo::minimumLevel() and
 198      * ZoomLevelInfo::maximumLevel().
 199      */
 200     void setZoomLevel(int level);
 201     int zoomLevel() const;
 202
 203     /**
 204      * Resets the view's icon size to the default value
 205      */
 206     void resetZoomLevel();
 207
 208     void setSortRole(const QByteArray &role);
 209     QByteArray sortRole() const;
 210
 211     void setSortOrder(Qt::SortOrder order);
 212     Qt::SortOrder sortOrder() const;
 213
 214     /** Sets a separate sorting with folders first (true) or a mixed sorting of files and folders (false). */
 215     void setSortFoldersFirst(bool foldersFirst);
 216     bool sortFoldersFirst() const;
 217
 218     /** Sets a separate sorting with hidden files and folders last (true) or not (false). */
 219     void setSortHiddenLast(bool hiddenLast);
 220     bool sortHiddenLast() const;
 221
 222     /** Sets the additional information which should be shown for the items. */
 223     void setVisibleRoles(const QList<QByteArray> &roles);
 224
 225     /** Returns the additional information which should be shown for the items. */
 226     QList<QByteArray> visibleRoles() const;
 227
 228     void reload();
 229
 230     /**
 231      * Refreshes the view to get synchronized with the settings (e.g. icons size,
 232      * font, ...).
 233      */
 234     void readSettings();
 235
 236     /**
 237      * Saves the current settings (e.g. icons size, font, ..).
 238      */
 239     void writeSettings();
 240
 241     /**
 242      * Filters the currently shown items by \a nameFilter. All items
 243      * which contain the given filter string will be shown.
 244      */
 245     void setNameFilter(const QString &nameFilter);
 246     QString nameFilter() const;
 247
 248     /**
 249      * Filters the currently shown items by \a filters. All items
 250      * whose content-type matches those given by the list of filters
 251      * will be shown.
 252      */
 253     void setMimeTypeFilters(const QStringList &filters);
 254     QStringList mimeTypeFilters() const;
 255
 256     /**
 257      * Tells the view to generate an updated status bar text. The result
 258      * is returned through the statusBarTextChanged(QString statusBarText) signal.
 259      * It will carry a textual representation of the state of the current
 260      * folder or selected items, suitable for use in the status bar.
 261      * Any pending requests of status bar text are killed.
 262      */
 263     void requestStatusBarText();
 264
 265     /**
 266      * Returns the version control actions that are provided for the items \p items.
 267      * Usually the actions are presented in the context menu.
 268      */
 269     QList<QAction *> versionControlActions(const KFileItemList &items) const;
 270
 271     /**
 272      * Returns the state of the paste action:
 273      * first is whether the action should be enabled
 274      * second is the text for the action
 275      */
 276     QPair<bool, QString> pasteInfo() const;
 277
 278     /**
 279      * If \a tabsForFiles is true, the signal tabRequested() will also
 280      * emitted also for files. Per default tabs for files is disabled
 281      * and hence the signal tabRequested() will only be emitted for
 282      * directories.
 283      */
 284     void setTabsForFilesEnabled(bool tabsForFiles);
 285     bool isTabsForFilesEnabled() const;
 286
 287     /**
 288      * Returns true if the current view allows folders to be expanded,
 289      * i.e. presents a hierarchical view to the user.
 290      */
 291     bool itemsExpandable() const;
 292
 293     /**
 294      * @returns true if the @p item is one of the items() of this view and
 295      * is currently expanded. false otherwise.
 296      * Only directories in view modes that allow expanding can ever be expanded.
 297      */
 298     bool isExpanded(const KFileItem &item) const;
 299
 300     /**
 301      * Restores the view state (current item, contents position, details view expansion state)
 302      */
 303     void restoreState(QDataStream &stream);
 304
 305     /**
 306      * Saves the view state (current item, contents position, details view expansion state)
 307      */
 308     void saveState(QDataStream &stream);
 309
 310     /**
 311      * Returns the root item which represents the current URL.
 312      */
 313     KFileItem rootItem() const;
 314
 315     /**
 316      * Sets a context that is used for remembering the view-properties.
 317      * Per default the context is empty and the path of the currently set URL
 318      * is used for remembering the view-properties. Setting a custom context
 319      * makes sense if specific types of URLs (e.g. search-URLs) should
 320      * share common view-properties.
 321      */
 322     void setViewPropertiesContext(const QString &context);
 323     QString viewPropertiesContext() const;
 324
 325     /**
 326      * Checks if the given \a item can be opened as folder (e.g. archives).
 327      * This function will also adjust the \a url (e.g. change the protocol).
 328      * @return a valid and adjusted url if the item can be opened as folder,
 329      * otherwise return an empty url.
 330      */
 331     static QUrl openItemAsFolderUrl(const KFileItem &item, const bool browseThroughArchives = true);
 332
 333     /**
 334      * Hides tooltip displayed over element.
 335      */
 336     void hideToolTip(const ToolTipManager::HideBehavior behavior = ToolTipManager::HideBehavior::Later);
 337
 338 public Q_SLOTS:
 339     /**
 340      * Changes the directory to \a url. If the current directory is equal to
 341      * \a url, nothing will be done (use DolphinView::reload() instead).
 342      */
 343     void setUrl(const QUrl &url);
 344
 345     /**
 346      * Selects all items.
 347      * @see DolphinView::selectedItems()
 348      */
 349     void selectAll();
 350
 351     /**
 352      * Inverts the current selection: selected items get unselected,
 353      * unselected items get selected.
 354      * @see DolphinView::selectedItems()
 355      */
 356     void invertSelection();
 357
 358     void clearSelection();
 359
 360     /**
 361      * Triggers the renaming of the currently selected items, where
 362      * the user must input a new name for the items.
 363      */
 364     void renameSelectedItems();
 365
 366     /**
 367      * Moves all selected items to the trash.
 368      */
 369     void trashSelectedItems();
 370
 371     /**
 372      * Deletes all selected items.
 373      */
 374     void deleteSelectedItems();
 375
 376     /**
 377      * Copies all selected items to the clipboard and marks
 378      * the items as cut.
 379      */
 380     void cutSelectedItemsToClipboard();
 381
 382     /** Copies all selected items to the clipboard. */
 383     void copySelectedItemsToClipboard();
 384
 385     /**
 386      * Copies all selected items to @p destinationUrl.
 387      */
 388     void copySelectedItems(const KFileItemList &selection, const QUrl &destinationUrl);
 389
 390     /**
 391      * Moves all selected items to @p destinationUrl.
 392      */
 393     void moveSelectedItems(const KFileItemList &selection, const QUrl &destinationUrl);
 394
 395     /** Pastes the clipboard data to this view. */
 396     void paste();
 397
 398     /**
 399      * Pastes the clipboard data into the currently selected
 400      * folder. If the current selection is not exactly one folder, no
 401      * paste operation is done.
 402      */
 403     void pasteIntoFolder();
 404
 405     /**
 406      * Copies the path of the first selected KFileItem into Clipboard.
 407      */
 408     void copyPathToClipboard();
 409
 410     /**
 411      * Creates duplicates of selected items, appending "copy"
 412      * to the end.
 413      */
 414     void duplicateSelectedItems();
 415
 416     /**
 417      * Handles a drop of @p dropEvent onto widget @p dropWidget and destination @p destUrl
 418      */
 419     void dropUrls(const QUrl &destUrl, QDropEvent *dropEvent, QWidget *dropWidget);
 420
 421     void stopLoading();
 422
 423     /**
 424      * Applies the state that has been restored by restoreViewState()
 425      * to the view.
 426      */
 427     void updateViewState();
 428
 429     /** Activates the view if the item list container gets focus. */
 430     bool eventFilter(QObject *watched, QEvent *event) override;
 431
 432 Q_SIGNALS:
 433     /**
 434      * Is emitted if the view has been activated by e. g. a mouse click.
 435      */
 436     void activated();
 437
 438     /** Is emitted if the URL of the view has been changed to \a url. */
 439     void urlChanged(const QUrl &url);
 440
 441     /**
 442      * Is emitted when clicking on an item with the left mouse button.
 443      */
 444     void itemActivated(const KFileItem &item);
 445
 446     /**
 447      * Is emitted when multiple items have been activated by e. g.
 448      * context menu open with.
 449      */
 450     void itemsActivated(const KFileItemList &items);
 451
 452     /**
 453      * Is emitted if items have been added or deleted.
 454      */
 455     void itemCountChanged();
 456
 457     /**
 458      * Is emitted if a new tab should be opened for the URL \a url.
 459      */
 460     void tabRequested(const QUrl &url);
 461
 462     /**
 463      * Is emitted if a new tab should be opened for the URL \a url and set as active.
 464      */
 465     void activeTabRequested(const QUrl &url);
 466
 467     /**
 468      * Is emitted if a new window should be opened for the URL \a url.
 469      */
 470     void windowRequested(const QUrl &url);
 471
 472     /**
 473      * Is emitted if the view mode (IconsView, DetailsView,
 474      * PreviewsView) has been changed.
 475      */
 476     void modeChanged(DolphinView::Mode current, DolphinView::Mode previous);
 477
 478     /** Is emitted if the 'show preview' property has been changed. */
 479     void previewsShownChanged(bool shown);
 480
 481     /** Is emitted if the 'show hidden files' property has been changed. */
 482     void hiddenFilesShownChanged(bool shown);
 483
 484     /** Is emitted if the 'grouped sorting' property has been changed. */
 485     void groupedSortingChanged(bool groupedSorting);
 486
 487     /** Is emitted in reaction to a requestStatusBarText() call.
 488      * @see requestStatusBarText() */
 489     void statusBarTextChanged(QString statusBarText);
 490
 491     /** Is emitted if the sorting by name, size or date has been changed. */
 492     void sortRoleChanged(const QByteArray &role);
 493
 494     /** Is emitted if the sort order (ascending or descending) has been changed. */
 495     void sortOrderChanged(Qt::SortOrder order);
 496
 497     /**
 498      * Is emitted if the sorting of files and folders (separate with folders
 499      * first or mixed) has been changed.
 500      */
 501     void sortFoldersFirstChanged(bool foldersFirst);
 502
 503     /**
 504      * Is emitted if the sorting of hidden files has been changed.
 505      */
 506     void sortHiddenLastChanged(bool hiddenLast);
 507
 508     /** Is emitted if the additional information shown for this view has been changed. */
 509     void visibleRolesChanged(const QList<QByteArray> &current, const QList<QByteArray> &previous);
 510
 511     /** Is emitted if the zoom level has been changed by zooming in or out. */
 512     void zoomLevelChanged(int current, int previous);
 513
 514     /**
 515      * Is emitted if information of an item is requested to be shown e. g. in the panel.
 516      * If item is null, no item information request is pending.
 517      */
 518     void requestItemInfo(const KFileItem &item);
 519
 520     /**
 521      * Is emitted whenever the selection has been changed.
 522      */
 523     void selectionChanged(const KFileItemList &selection);
 524
 525     /**
 526      * Is emitted if a context menu is requested for the item \a item,
 527      * which is part of \a url. If the item is null, the context menu
 528      * for the URL should be shown.
 529      */
 530     void requestContextMenu(const QPoint &pos, const KFileItem &item, const KFileItemList &selectedItems, const QUrl &url);
 531
 532     /**
 533      * Is emitted if an information message with the content \a msg
 534      * should be shown.
 535      */
 536     void infoMessage(const QString &msg);
 537
 538     /**
 539      * Is emitted if an error message with the content \a msg
 540      * should be shown.
 541      */
 542     void errorMessage(const QString &msg);
 543
 544     /**
 545      * Is emitted if an "operation completed" message with the content \a msg
 546      * should be shown.
 547      */
 548     void operationCompletedMessage(const QString &msg);
 549
 550     /**
 551      * Is emitted after DolphinView::setUrl() has been invoked and
 552      * the current directory is loaded. If this signal is emitted,
 553      * it is assured that the view contains already the correct root
 554      * URL and property settings.
 555      */
 556     void directoryLoadingStarted();
 557
 558     /**
 559      * Is emitted after the directory triggered by DolphinView::setUrl()
 560      * has been loaded.
 561      */
 562     void directoryLoadingCompleted();
 563
 564     /**
 565      * Is emitted after the directory loading triggered by DolphinView::setUrl()
 566      * has been canceled.
 567      */
 568     void directoryLoadingCanceled();
 569
 570     /**
 571      * Is emitted after DolphinView::setUrl() has been invoked and provides
 572      * the information how much percent of the current directory have been loaded.
 573      */
 574     void directoryLoadingProgress(int percent);
 575
 576     /**
 577      * Is emitted if the sorting is done asynchronously and provides the
 578      * progress information of the sorting.
 579      */
 580     void directorySortingProgress(int percent);
 581
 582     /**
 583      * Emitted when the file-item-model emits redirection.
 584      * Testcase: fish://localhost
 585      */
 586     void redirection(const QUrl &oldUrl, const QUrl &newUrl);
 587
 588     /**
 589      * Is emitted when the URL set by DolphinView::setUrl() represents a file.
 590      * In this case no signal errorMessage() will be emitted.
 591      */
 592     void urlIsFileError(const QUrl &url);
 593
 594     /**
 595      * Is emitted when the write state of the folder has been changed. The application
 596      * should disable all actions like "Create New..." that depend on the write
 597      * state.
 598      */
 599     void writeStateChanged(bool isFolderWritable);
 600
 601     /**
 602      * Is emitted if the URL should be changed to the previous URL of the
 603      * history (e.g. because the "back"-mousebutton has been pressed).
 604      */
 605     void goBackRequested();
 606
 607     /**
 608      * Is emitted if the URL should be changed to the next URL of the
 609      * history (e.g. because the "next"-mousebutton has been pressed).
 610      */
 611     void goForwardRequested();
 612
 613     /**
 614      * Used to request either entering or leaving of selection mode
 615      * Entering is typically requested on press and hold.
 616      * Leaving by pressing Escape when no item is selected.
 617      */
 618     void selectionModeChangeRequested(bool enabled);
 619
 620     /**
 621      * Is emitted when the user wants to move the focus to another view.
 622      */
 623     void toggleActiveViewRequested();
 624
 625     /**
 626      * Is emitted when the user clicks a tag or a link
 627      * in the metadata widget of a tooltip.
 628      */
 629     void urlActivated(const QUrl &url);
 630
 631     void goUpRequested();
 632
 633     void fileItemsChanged(const KFileItemList &changedFileItems);
 634
 635     /**
 636      * Emitted when the current directory of the model was removed.
 637      */
 638     void currentDirectoryRemoved();
 639
 640 protected:
 641     /** Changes the zoom level if Control is pressed during a wheel event. */
 642     void wheelEvent(QWheelEvent *event) override;
 643
 644     void hideEvent(QHideEvent *event) override;
 645     bool event(QEvent *event) override;
 646
 647 private Q_SLOTS:
 648     /**
 649      * Marks the view as active (DolphinView:isActive() will return true)
 650      * and emits the 'activated' signal if it is not already active.
 651      */
 652     void activate();
 653
 654     void slotItemActivated(int index);
 655     void slotItemsActivated(const KItemSet &indexes);
 656     void slotItemMiddleClicked(int index);
 657     void slotItemContextMenuRequested(int index, const QPointF &pos);
 658     void slotViewContextMenuRequested(const QPointF &pos);
 659     void slotHeaderContextMenuRequested(const QPointF &pos);
 660     void slotHeaderColumnWidthChangeFinished(const QByteArray &role, qreal current);
 661     void slotSidePaddingWidthChanged(qreal width);
 662     void slotItemHovered(int index);
 663     void slotItemUnhovered(int index);
 664     void slotItemDropEvent(int index, QGraphicsSceneDragDropEvent *event);
 665     void slotModelChanged(KItemModelBase *current, KItemModelBase *previous);
 666     void slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons);
 667     void slotRenameDialogRenamingFinished(const QList<QUrl> &urls);
 668     void slotSelectedItemTextPressed(int index);
 669     void slotCopyingDone(KIO::Job *, const QUrl &, const QUrl &to);
 670     void slotIncreaseZoom();
 671     void slotDecreaseZoom();
 672     void slotSwipeUp();
 673
 674     /*
 675      * Is called when new items get pasted or dropped.
 676      */
 677     void slotItemCreated(const QUrl &url);
 678     /*
 679      * Is called after all pasted or dropped items have been copied to destination.
 680      */
 681     void slotJobResult(KJob *job);
 682
 683     /**
 684      * Emits the signal \a selectionChanged() with a small delay. This is
 685      * because getting all file items for the selection can be an expensive
 686      * operation. Fast selection changes are collected in this case and
 687      * the signal is emitted only after no selection change has been done
 688      * within a small delay.
 689      */
 690     void slotSelectionChanged(const KItemSet &current, const KItemSet &previous);
 691
 692     /**
 693      * Is called by emitDelayedSelectionChangedSignal() and emits the
 694      * signal \a selectionChanged() with all selected file items as parameter.
 695      */
 696     void emitSelectionChangedSignal();
 697
 698     /**
 699      * Helper method for DolphinView::requestStatusBarText().
 700      * Calculates the amount of folders and files and their total size in
 701      * response to a KStatJob::result(), then calls emitStatusBarText().
 702      * @see requestStatusBarText()
 703      * @see emitStatusBarText()
 704      */
 705     void slotStatJobResult(KJob *job);
 706
 707     /**
 708      * Updates the view properties of the current URL to the
 709      * sorting given by \a role.
 710      */
 711     void updateSortRole(const QByteArray &role);
 712
 713     /**
 714      * Updates the view properties of the current URL to the
 715      * sort order given by \a order.
 716      */
 717     void updateSortOrder(Qt::SortOrder order);
 718
 719     /**
 720      * Updates the view properties of the current URL to the
 721      * sorting of files and folders (separate with folders first or mixed) given by \a foldersFirst.
 722      */
 723     void updateSortFoldersFirst(bool foldersFirst);
 724
 725     /**
 726      * Updates the view properties of the current URL to the
 727      * sorting of hidden files given by \a hiddenLast.
 728      */
 729     void updateSortHiddenLast(bool hiddenLast);
 730
 731     /**
 732      * Indicates in the status bar that the delete operation
 733      * of the job \a job has been finished.
 734      */
 735     void slotDeleteFileFinished(KJob *job);
 736
 737     /**
 738      * Indicates in the status bar that the trash operation
 739      * of the job \a job has been finished.
 740      */
 741     void slotTrashFileFinished(KJob *job);
 742
 743     /**
 744      * Invoked when the rename job is done, for error handling.
 745      */
 746     void slotRenamingResult(KJob *job);
 747
 748     /**
 749      * Invoked when the file item model has started the loading
 750      * of the directory specified by DolphinView::url().
 751      */
 752     void slotDirectoryLoadingStarted();
 753
 754     /**
 755      * Invoked when the file item model indicates that the loading of a directory has
 756      * been completed. Assures that pasted items and renamed items get selected.
 757      */
 758     void slotDirectoryLoadingCompleted();
 759
 760     /**
 761      * Invoked when the file item model indicates that the loading of a directory has
 762      * been canceled.
 763      */
 764     void slotDirectoryLoadingCanceled();
 765
 766     /**
 767      * Is invoked when items of KFileItemModel have been changed.
 768      */
 769     void slotItemsChanged();
 770
 771     /**
 772      * Is invoked when the sort order has been changed by the user by clicking
 773      * on a header item. The view properties of the directory will get updated.
 774      */
 775     void slotSortOrderChangedByHeader(Qt::SortOrder current, Qt::SortOrder previous);
 776
 777     /**
 778      * Is invoked when the sort role has been changed by the user by clicking
 779      * on a header item. The view properties of the directory will get updated.
 780      */
 781     void slotSortRoleChangedByHeader(const QByteArray &current, const QByteArray &previous);
 782
 783     /**
 784      * Is invoked when the visible roles have been changed by the user by dragging
 785      * a header item. The view properties of the directory will get updated.
 786      */
 787     void slotVisibleRolesChangedByHeader(const QList<QByteArray> &current, const QList<QByteArray> &previous);
 788
 789     void slotRoleEditingCanceled();
 790     void slotRoleEditingFinished(int index, const QByteArray &role, const QVariant &value);
 791
 792     /**
 793      * Observes the item with the URL \a url. As soon as the directory
 794      * model indicates that the item is available, the item will
 795      * get selected and it is assured that the item stays visible.
 796      */
 797     void observeCreatedItem(const QUrl &url);
 798
 799     /**
 800      * Selects the next item after prev selection deleted/trashed
 801      */
 802     void selectNextItem();
 803
 804     /**
 805      * Called when a redirection happens.
 806      * Testcase: fish://localhost
 807      */
 808     void slotDirectoryRedirection(const QUrl &oldUrl, const QUrl &newUrl);
 809
 810     void slotTwoClicksRenamingTimerTimeout();
 811
 812 private:
 813     void loadDirectory(const QUrl &url, bool reload = false);
 814
 815     /**
 816      * Applies the view properties which are defined by the current URL
 817      * to the DolphinView properties. The view properties are read from a
 818      * .directory file either in the current directory, or in the
 819      * share/apps/dolphin/view_properties/ subfolder of the user's .kde folder.
 820      */
 821     void applyViewProperties();
 822
 823     /**
 824      * Applies the given view properties to the DolphinView.
 825      */
 826     void applyViewProperties(const ViewProperties &props);
 827
 828     /**
 829      * Applies the m_mode property to the corresponding
 830      * itemlayout-property of the KItemListView.
 831      */
 832     void applyModeToView();
 833
 834     enum Selection { HasSelection, NoSelection };
 835     /**
 836      * Helper method for DolphinView::requestStatusBarText().
 837      * Generates the status bar text from the parameters and
 838      * then emits statusBarTextChanged().
 839      * @param totalFileSize the sum of the sizes of the files
 840      * @param selection     if HasSelection is passed, the emitted status bar text will say
 841      *                      that the folders and files which are counted here are selected.
 842      */
 843     void emitStatusBarText(const int folderCount, const int fileCount, KIO::filesize_t totalFileSize, const Selection selection);
 844
 845     /**
 846      * Helper method for DolphinView::paste() and DolphinView::pasteIntoFolder().
 847      * Pastes the clipboard data into the URL \a url.
 848      */
 849     void pasteToUrl(const QUrl &url);
 850
 851     /**
 852      * Returns a list of URLs for all selected items. The list is
 853      * simplified, so that when the URLs are part of different tree
 854      * levels, only the parent is returned.
 855      */
 856     QList<QUrl> simplifiedSelectedUrls() const;
 857
 858     /**
 859      * Returns the MIME data for all selected items.
 860      */
 861     QMimeData *selectionMimeData() const;
 862
 863     /**
 864      * Updates m_isFolderWritable dependent on whether the folder represented by
 865      * the current URL is writable. If the state has changed, the signal
 866      * writeableStateChanged() will be emitted.
 867      */
 868     void updateWritableState();
 869
 870     /**
 871      * @return The current URL if no viewproperties-context is given (see
 872      *         DolphinView::viewPropertiesContext(), otherwise the context
 873      *         is returned.
 874      */
 875     QUrl viewPropertiesUrl() const;
 876
 877     /**
 878      * Clears the selection and updates current item and selection according to the parameters
 879      *
 880      * @param current URL to be set as current
 881      * @param selected list of selected items
 882      */
 883     void forceUrlsSelection(const QUrl &current, const QList<QUrl> &selected);
 884
 885     void abortTwoClicksRenaming();
 886
 887     void updatePlaceholderLabel();
 888
 889     void tryShowNameToolTip(QHelpEvent *event);
 890
 891 private:
 892     void updatePalette();
 893     void showLoadingPlaceholder();
 894
 895     bool m_active;
 896     bool m_tabsForFiles;
 897     bool m_assureVisibleCurrentIndex;
 898     bool m_isFolderWritable;
 899     bool m_dragging; // True if a dragging is done. Required to be able to decide whether a
 900                      // tooltip may be shown when hovering an item.
 901     bool m_selectNextItem;
 902
 903     enum class LoadingState { Idle, Loading, Canceled, Completed };
 904     LoadingState m_loadingState = LoadingState::Idle;
 905
 906     QUrl m_url;
 907     QString m_viewPropertiesContext;
 908     Mode m_mode;
 909     QList<QByteArray> m_visibleRoles;
 910
 911     QPointer<KIO::StatJob> m_statJobForStatusBarText;
 912
 913     QVBoxLayout *m_topLayout;
 914
 915     KFileItemModel *m_model;
 916     DolphinItemListView *m_view;
 917     KItemListContainer *m_container;
 918
 919     ToolTipManager *m_toolTipManager;
 920
 921     QTimer *m_selectionChangedTimer;
 922
 923     QUrl m_currentItemUrl; // Used for making the view to remember the current URL after F5
 924     bool m_scrollToCurrentItem; // Used for marking we need to scroll to current item or not
 925     QPoint m_restoredContentsPosition;
 926
 927     // Used for tracking the accumulated scroll amount (for zooming with high
 928     // resolution scroll wheels)
 929     int m_controlWheelAccumulatedDelta;
 930
 931     QList<QUrl> m_selectedUrls; // Used for making the view to remember selections after F5
 932     bool m_clearSelectionBeforeSelectingNewItems;
 933     bool m_markFirstNewlySelectedItemAsCurrent;
 934
 935     VersionControlObserver *m_versionControlObserver;
 936
 937     QTimer *m_twoClicksRenamingTimer;
 938     QUrl m_twoClicksRenamingItemUrl;
 939     QLabel *m_placeholderLabel;
 940     QTimer *m_showLoadingPlaceholderTimer;
 941
 942     /// Used for selection mode. @see setSelectionMode()
 943     std::unique_ptr<QProxyStyle> m_proxyStyle;
 944
 945     // For unit tests
 946     friend class TestBase;
 947     friend class DolphinDetailsViewTest;
 948     friend class DolphinMainWindowTest;
 949     friend class DolphinPart; // Accesses m_model
 950 };
 951
 952 /// Allow using DolphinView::Mode in QVariant
 953 Q_DECLARE_METATYPE(DolphinView::Mode)
 954
 955 #endif // DOLPHINVIEW_H