src/dolphinview.cpp

   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 #include "dolphinview.h"
  22
  23 #include <QApplication>
  24 #include <QClipboard>
  25 #include <QKeyEvent>
  26 #include <QItemSelection>
  27 #include <QBoxLayout>
  28 #include <QTimer>
  29 #include <QScrollBar>
  30
  31 #include <kactioncollection.h>
  32 #include <kcolorscheme.h>
  33 #include <kdirlister.h>
  34 #include <kfileitemdelegate.h>
  35 #include <kiconeffect.h>
  36 #include <klocale.h>
  37 #include <kio/deletejob.h>
  38 #include <kio/netaccess.h>
  39 #include <kio/previewjob.h>
  40 #include <kjob.h>
  41 #include <kmenu.h>
  42 #include <kmessagebox.h>
  43 #include <kmimetyperesolver.h>
  44 #include <konq_fileitemcapabilities.h>
  45 #include <konq_operations.h>
  46 #include <konqmimedata.h>
  47 #include <ktoggleaction.h>
  48 #include <kurl.h>
  49
  50 #include "dolphindropcontroller.h"
  51 #include "dolphinmodel.h"
  52 #include "dolphincolumnview.h"
  53 #include "dolphincontroller.h"
  54 #include "dolphinsortfilterproxymodel.h"
  55 #include "dolphindetailsview.h"
  56 #include "dolphin_detailsmodesettings.h"
  57 #include "dolphiniconsview.h"
  58 #include "dolphinsettings.h"
  59 #include "dolphin_generalsettings.h"
  60 #include "folderexpander.h"
  61 #include "iconmanager.h"
  62 #include "renamedialog.h"
  63 #include "tooltipmanager.h"
  64 #include "viewproperties.h"
  65 #include "zoomlevelinfo.h"
  66
  67 DolphinView::DolphinView(QWidget* parent,
  68                          const KUrl& url,
  69                          KDirLister* dirLister,
  70                          DolphinModel* dolphinModel,
  71                          DolphinSortFilterProxyModel* proxyModel) :
  72     QWidget(parent),
  73     m_active(true),
  74     m_showPreview(false),
  75     m_loadingDirectory(false),
  76     m_storedCategorizedSorting(false),
  77     m_tabsForFiles(false),
  78     m_isContextMenuOpen(false),
  79     m_mode(DolphinView::IconsView),
  80     m_topLayout(0),
  81     m_controller(0),
  82     m_iconsView(0),
  83     m_detailsView(0),
  84     m_columnView(0),
  85     m_fileItemDelegate(0),
  86     m_selectionModel(0),
  87     m_dolphinModel(dolphinModel),
  88     m_dirLister(dirLister),
  89     m_proxyModel(proxyModel),
  90     m_iconManager(0),
  91     m_toolTipManager(0),
  92     m_rootUrl(),
  93     m_currentItemUrl()
  94 {
  95     m_topLayout = new QVBoxLayout(this);
  96     m_topLayout->setSpacing(0);
  97     m_topLayout->setMargin(0);
  98
  99     m_controller = new DolphinController(this);
 100     m_controller->setUrl(url);
 101
 102     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 103             this, SIGNAL(urlChanged(const KUrl&)));
 104     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 105             this, SLOT(slotRequestUrlChange(const KUrl&)));
 106
 107     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 108             this, SLOT(openContextMenu(const QPoint&)));
 109     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&, const KFileItem&)),
 110             this, SLOT(dropUrls(const KUrl::List&, const KUrl&, const KFileItem&)));
 111     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 112             this, SLOT(updateSorting(DolphinView::Sorting)));
 113     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 114             this, SLOT(updateSortOrder(Qt::SortOrder)));
 115     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 116             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 117     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 118             this, SLOT(triggerItem(const KFileItem&)));
 119     connect(m_controller, SIGNAL(tabRequested(const KUrl&)),
 120             this, SIGNAL(tabRequested(const KUrl&)));
 121     connect(m_controller, SIGNAL(activated()),
 122             this, SLOT(activate()));
 123     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 124             this, SLOT(showHoverInformation(const KFileItem&)));
 125     connect(m_controller, SIGNAL(viewportEntered()),
 126             this, SLOT(clearHoverInformation()));
 127
 128     connect(m_dirLister, SIGNAL(redirection(KUrl, KUrl)),
 129             this, SLOT(slotRedirection(KUrl, KUrl)));
 130     connect(m_dirLister, SIGNAL(completed()),
 131             this, SLOT(restoreCurrentItem()));
 132
 133     applyViewProperties(url);
 134     m_topLayout->addWidget(itemView());
 135 }
 136
 137 DolphinView::~DolphinView()
 138 {
 139 }
 140
 141 const KUrl& DolphinView::url() const
 142 {
 143     return m_controller->url();
 144 }
 145
 146 KUrl DolphinView::rootUrl() const
 147 {
 148     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 149 }
 150
 151 void DolphinView::setActive(bool active)
 152 {
 153     if (active == m_active) {
 154         return;
 155     }
 156
 157     m_active = active;
 158
 159     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 160     if (active) {
 161         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 162         // bypasses the problem when having a split view and changing the active view to
 163         // update the some URL dependent states. A nicer approach should be no big deal...
 164         emit urlChanged(url());
 165         emit selectionChanged(selectedItems());
 166     } else {
 167         color.setAlpha(150);
 168     }
 169
 170     QWidget* viewport = itemView()->viewport();
 171     QPalette palette;
 172     palette.setColor(viewport->backgroundRole(), color);
 173     viewport->setPalette(palette);
 174
 175     update();
 176
 177     if (active) {
 178         itemView()->setFocus();
 179         emit activated();
 180     }
 181
 182     m_controller->indicateActivationChange(active);
 183 }
 184
 185 bool DolphinView::isActive() const
 186 {
 187     return m_active;
 188 }
 189
 190 void DolphinView::setMode(Mode mode)
 191 {
 192     if (mode == m_mode) {
 193         return; // the wished mode is already set
 194     }
 195
 196     m_mode = mode;
 197
 198     deleteView();
 199
 200     const KUrl viewPropsUrl = viewPropertiesUrl();
 201     ViewProperties props(viewPropsUrl);
 202     props.setViewMode(m_mode);
 203     createView();
 204
 205     // the file item delegate has been recreated, apply the current
 206     // additional information manually
 207     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 208     m_fileItemDelegate->setShowInformation(infoList);
 209     emit additionalInfoChanged();
 210
 211     // Not all view modes support categorized sorting. Adjust the sorting model
 212     // if changing the view mode results in a change of the categorized sorting
 213     // capabilities.
 214     m_storedCategorizedSorting = props.categorizedSorting();
 215     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 216     if (categorized != m_proxyModel->isCategorizedModel()) {
 217         m_proxyModel->setCategorizedModel(categorized);
 218         emit categorizedSortingChanged();
 219     }
 220
 221     emit modeChanged();
 222 }
 223
 224 DolphinView::Mode DolphinView::mode() const
 225 {
 226     return m_mode;
 227 }
 228
 229 bool DolphinView::showPreview() const
 230 {
 231     return m_showPreview;
 232 }
 233
 234 bool DolphinView::showHiddenFiles() const
 235 {
 236     return m_dirLister->showingDotFiles();
 237 }
 238
 239 bool DolphinView::categorizedSorting() const
 240 {
 241     // If all view modes would support categorized sorting, returning
 242     // m_proxyModel->isCategorizedModel() would be the way to go. As
 243     // currently only the icons view supports caterized sorting, we remember
 244     // the stored view properties state in m_storedCategorizedSorting and
 245     // return this state. The application takes care to disable the corresponding
 246     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 247     // that this setting is not applied to the current view mode.
 248     return m_storedCategorizedSorting;
 249 }
 250
 251 bool DolphinView::supportsCategorizedSorting() const
 252 {
 253     return m_iconsView != 0;
 254 }
 255
 256 void DolphinView::selectAll()
 257 {
 258     QAbstractItemView* view = itemView();
 259     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 260     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 261     // selection instead of selecting all items. This is bypassed for KDE 4.0
 262     // by invoking clearSelection() first.
 263     view->clearSelection();
 264     view->selectAll();
 265 }
 266
 267 void DolphinView::invertSelection()
 268 {
 269     if (isColumnViewActive()) {
 270         // QAbstractItemView does not offer a virtual method invertSelection()
 271         // as counterpart to QAbstractItemView::selectAll(). This makes it
 272         // necessary to delegate the inverting of the selection to the
 273         // column view, as only the selection of the active column should
 274         // get inverted.
 275         m_columnView->invertSelection();
 276     } else {
 277         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 278         const QAbstractItemModel* itemModel = selectionModel->model();
 279
 280         const QModelIndex topLeft = itemModel->index(0, 0);
 281         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 282                                                          itemModel->columnCount() - 1);
 283
 284         const QItemSelection selection(topLeft, bottomRight);
 285         selectionModel->select(selection, QItemSelectionModel::Toggle);
 286     }
 287 }
 288
 289 bool DolphinView::hasSelection() const
 290 {
 291     return itemView()->selectionModel()->hasSelection();
 292 }
 293
 294 void DolphinView::clearSelection()
 295 {
 296     itemView()->selectionModel()->clear();
 297 }
 298
 299 KFileItemList DolphinView::selectedItems() const
 300 {
 301     if (isColumnViewActive()) {
 302         return m_columnView->selectedItems();
 303     }
 304
 305     const QAbstractItemView* view = itemView();
 306
 307     // Our view has a selection, we will map them back to the DolphinModel
 308     // and then fill the KFileItemList.
 309     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 310
 311     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 312     KFileItemList itemList;
 313
 314     const QModelIndexList indexList = selection.indexes();
 315     foreach (const QModelIndex &index, indexList) {
 316         KFileItem item = m_dolphinModel->itemForIndex(index);
 317         if (!item.isNull()) {
 318             itemList.append(item);
 319         }
 320     }
 321
 322     return itemList;
 323 }
 324
 325 KUrl::List DolphinView::selectedUrls() const
 326 {
 327     KUrl::List urls;
 328     const KFileItemList list = selectedItems();
 329     foreach (const KFileItem &item, list) {
 330         urls.append(item.url());
 331     }
 332     return urls;
 333 }
 334
 335 int DolphinView::selectedItemsCount() const
 336 {
 337     if (isColumnViewActive()) {
 338         // TODO: get rid of this special case by adjusting the dir lister
 339         // to the current column
 340         return m_columnView->selectedItems().count();
 341     }
 342
 343     return itemView()->selectionModel()->selection().count();
 344 }
 345
 346 void DolphinView::setContentsPosition(int x, int y)
 347 {
 348     QAbstractItemView* view = itemView();
 349
 350     // the ColumnView takes care itself for the horizontal scrolling
 351     if (!isColumnViewActive()) {
 352         view->horizontalScrollBar()->setValue(x);
 353     }
 354     view->verticalScrollBar()->setValue(y);
 355
 356     m_loadingDirectory = false;
 357 }
 358
 359 QPoint DolphinView::contentsPosition() const
 360 {
 361     const int x = itemView()->horizontalScrollBar()->value();
 362     const int y = itemView()->verticalScrollBar()->value();
 363     return QPoint(x, y);
 364 }
 365
 366 void DolphinView::setZoomLevel(int level)
 367 {
 368     if (level < ZoomLevelInfo::minimumLevel()) {
 369         level = ZoomLevelInfo::minimumLevel();
 370     } else if (level > ZoomLevelInfo::maximumLevel()) {
 371         level = ZoomLevelInfo::maximumLevel();
 372     }
 373
 374     if (level != zoomLevel()) {
 375         m_controller->setZoomLevel(level);
 376         m_iconManager->updatePreviews();
 377         emit zoomLevelChanged(level);
 378     }
 379 }
 380
 381 int DolphinView::zoomLevel() const
 382 {
 383     return m_controller->zoomLevel();
 384 }
 385
 386 void DolphinView::setSorting(Sorting sorting)
 387 {
 388     if (sorting != this->sorting()) {
 389         updateSorting(sorting);
 390     }
 391 }
 392
 393 DolphinView::Sorting DolphinView::sorting() const
 394 {
 395     return m_proxyModel->sorting();
 396 }
 397
 398 void DolphinView::setSortOrder(Qt::SortOrder order)
 399 {
 400     if (sortOrder() != order) {
 401         updateSortOrder(order);
 402     }
 403 }
 404
 405 Qt::SortOrder DolphinView::sortOrder() const
 406 {
 407     return m_proxyModel->sortOrder();
 408 }
 409
 410 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 411 {
 412     const KUrl viewPropsUrl = viewPropertiesUrl();
 413     ViewProperties props(viewPropsUrl);
 414     props.setAdditionalInfo(info);
 415     m_fileItemDelegate->setShowInformation(info);
 416
 417     emit additionalInfoChanged();
 418
 419     if (itemView() != m_detailsView) {
 420         // the details view requires no reloading of the directory, as it maps
 421         // the file item delegate info to its columns internally
 422         loadDirectory(viewPropsUrl);
 423     }
 424 }
 425
 426 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 427 {
 428     return m_fileItemDelegate->showInformation();
 429 }
 430
 431 void DolphinView::reload()
 432 {
 433     setUrl(url());
 434     loadDirectory(url(), true);
 435 }
 436
 437 void DolphinView::refresh()
 438 {
 439     const bool oldActivationState = m_active;
 440     m_active = true;
 441
 442     createView();
 443     applyViewProperties(m_controller->url());
 444     reload();
 445
 446     setActive(oldActivationState);
 447 }
 448
 449 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 450 {
 451     if (m_controller->url() == url) {
 452         return;
 453     }
 454
 455     m_iconManager->cancelPreviews();
 456     m_controller->setUrl(url); // emits urlChanged, which we forward
 457
 458     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 459         applyViewProperties(rootUrl);
 460         loadDirectory(rootUrl);
 461         if (itemView() == m_columnView) {
 462             m_columnView->setRootUrl(rootUrl);
 463             m_columnView->showColumn(url);
 464         }
 465     } else {
 466         applyViewProperties(url);
 467         loadDirectory(url);
 468     }
 469
 470     emit startedPathLoading(url);
 471 }
 472
 473 void DolphinView::setNameFilter(const QString& nameFilter)
 474 {
 475     m_proxyModel->setFilterRegExp(nameFilter);
 476
 477     if (isColumnViewActive()) {
 478         // adjusting the directory lister is not enough in the case of the
 479         // column view, as each column has its own directory lister internally...
 480         m_columnView->setNameFilter(nameFilter);
 481     }
 482 }
 483
 484 void DolphinView::calculateItemCount(int& fileCount, int& folderCount)
 485 {
 486     foreach (const KFileItem &item, m_dirLister->items()) {
 487         if (item.isDir()) {
 488             ++folderCount;
 489         } else {
 490             ++fileCount;
 491         }
 492     }
 493 }
 494
 495 void DolphinView::setUrl(const KUrl& url)
 496 {
 497     // remember current item candidate (see restoreCurrentItem())
 498     m_currentItemUrl = url;
 499     updateView(url, KUrl());
 500 }
 501
 502 void DolphinView::changeSelection(const KFileItemList& selection)
 503 {
 504     clearSelection();
 505     if (selection.isEmpty()) {
 506         return;
 507     }
 508     const KUrl& baseUrl = url();
 509     KUrl url;
 510     QItemSelection new_selection;
 511     foreach(const KFileItem& item, selection) {
 512         url = item.url().upUrl();
 513         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 514             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 515             new_selection.select(index, index);
 516         }
 517     }
 518     itemView()->selectionModel()->select(new_selection,
 519                                          QItemSelectionModel::ClearAndSelect
 520                                          | QItemSelectionModel::Current);
 521 }
 522
 523 void DolphinView::renameSelectedItems()
 524 {
 525     const KFileItemList items = selectedItems();
 526     const int itemCount = items.count();
 527     if (itemCount < 1) {
 528         return;
 529     }
 530
 531     if (itemCount > 1) {
 532         // More than one item has been selected for renaming. Open
 533         // a rename dialog and rename all items afterwards.
 534         RenameDialog dialog(this, items);
 535         if (dialog.exec() == QDialog::Rejected) {
 536             return;
 537         }
 538
 539         const QString newName = dialog.newName();
 540         if (newName.isEmpty()) {
 541             emit errorMessage(dialog.errorString());
 542         } else {
 543             // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 544             // as one operation instead of n rename operations like it is done now...
 545             Q_ASSERT(newName.contains('#'));
 546
 547             // iterate through all selected items and rename them...
 548             int index = 1;
 549             foreach (const KFileItem &item, items) {
 550                 const KUrl& oldUrl = item.url();
 551                 QString number;
 552                 number.setNum(index++);
 553
 554                 QString name = newName;
 555                 name.replace('#', number);
 556
 557                 if (oldUrl.fileName() != name) {
 558                     KUrl newUrl = oldUrl;
 559                     newUrl.setFileName(name);
 560                     KonqOperations::rename(this, oldUrl, newUrl);
 561                     emit doingOperation(KIO::FileUndoManager::Rename);
 562                 }
 563             }
 564         }
 565     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 566         Q_ASSERT(itemCount == 1);
 567
 568         if (isColumnViewActive()) {
 569             m_columnView->editItem(items.first());
 570         } else {
 571             const QModelIndex dirIndex = m_dolphinModel->indexForItem(items.first());
 572             const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 573             itemView()->edit(proxyIndex);
 574         }
 575     } else {
 576         Q_ASSERT(itemCount == 1);
 577
 578         RenameDialog dialog(this, items);
 579         if (dialog.exec() == QDialog::Rejected) {
 580             return;
 581         }
 582
 583         const QString& newName = dialog.newName();
 584         if (newName.isEmpty()) {
 585             emit errorMessage(dialog.errorString());
 586         } else {
 587             const KUrl& oldUrl = items.first().url();
 588             KUrl newUrl = oldUrl;
 589             newUrl.setFileName(newName);
 590             KonqOperations::rename(this, oldUrl, newUrl);
 591             emit doingOperation(KIO::FileUndoManager::Rename);
 592         }
 593     }
 594 }
 595
 596 void DolphinView::trashSelectedItems()
 597 {
 598     emit doingOperation(KIO::FileUndoManager::Trash);
 599     const KUrl::List list = simplifiedSelectedUrls();
 600     KonqOperations::del(this, KonqOperations::TRASH, list);
 601 }
 602
 603 void DolphinView::deleteSelectedItems()
 604 {
 605     const KUrl::List list = simplifiedSelectedUrls();
 606     const bool del = KonqOperations::askDeleteConfirmation(list,
 607                      KonqOperations::DEL,
 608                      KonqOperations::DEFAULT_CONFIRMATION,
 609                      this);
 610
 611     if (del) {
 612         KIO::Job* job = KIO::del(list);
 613         connect(job, SIGNAL(result(KJob*)),
 614                 this, SLOT(slotDeleteFileFinished(KJob*)));
 615     }
 616 }
 617
 618 void DolphinView::cutSelectedItems()
 619 {
 620     QMimeData* mimeData = new QMimeData();
 621     const KUrl::List kdeUrls = simplifiedSelectedUrls();
 622     const KUrl::List mostLocalUrls;
 623     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 624     QApplication::clipboard()->setMimeData(mimeData);
 625 }
 626
 627 void DolphinView::copySelectedItems()
 628 {
 629     QMimeData* mimeData = new QMimeData();
 630     const KUrl::List kdeUrls = selectedUrls();
 631     const KUrl::List mostLocalUrls;
 632     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 633     QApplication::clipboard()->setMimeData(mimeData);
 634 }
 635
 636 void DolphinView::paste()
 637 {
 638     pasteToUrl(url());
 639 }
 640
 641 void DolphinView::pasteIntoFolder()
 642 {
 643     const KFileItemList items = selectedItems();
 644     if ((items.count() == 1) && items.first().isDir()) {
 645         pasteToUrl(items.first().url());
 646     }
 647 }
 648
 649 void DolphinView::setShowPreview(bool show)
 650 {
 651     if (m_showPreview == show) {
 652         return;
 653     }
 654
 655     const KUrl viewPropsUrl = viewPropertiesUrl();
 656     ViewProperties props(viewPropsUrl);
 657     props.setShowPreview(show);
 658
 659     m_showPreview = show;
 660     m_iconManager->setShowPreview(show);
 661
 662     const int oldZoomLevel = m_controller->zoomLevel();
 663     emit showPreviewChanged();
 664
 665     // Enabling or disabling the preview might change the icon size of the view.
 666     // As the view does not emit a signal when the icon size has been changed,
 667     // the used zoom level of the controller must be adjusted manually:
 668     updateZoomLevel(oldZoomLevel);
 669
 670     loadDirectory(viewPropsUrl);
 671 }
 672
 673 void DolphinView::setShowHiddenFiles(bool show)
 674 {
 675     if (m_dirLister->showingDotFiles() == show) {
 676         return;
 677     }
 678
 679     const KUrl viewPropsUrl = viewPropertiesUrl();
 680     ViewProperties props(viewPropsUrl);
 681     props.setShowHiddenFiles(show);
 682
 683     m_dirLister->setShowingDotFiles(show);
 684     emit showHiddenFilesChanged();
 685
 686     loadDirectory(viewPropsUrl);
 687 }
 688
 689 void DolphinView::setCategorizedSorting(bool categorized)
 690 {
 691     if (categorized == categorizedSorting()) {
 692         return;
 693     }
 694
 695     // setCategorizedSorting(true) may only get invoked
 696     // if the view supports categorized sorting
 697     Q_ASSERT(!categorized || supportsCategorizedSorting());
 698
 699     ViewProperties props(viewPropertiesUrl());
 700     props.setCategorizedSorting(categorized);
 701     props.save();
 702
 703     m_storedCategorizedSorting = categorized;
 704     m_proxyModel->setCategorizedModel(categorized);
 705
 706     emit categorizedSortingChanged();
 707 }
 708
 709 void DolphinView::toggleSortOrder()
 710 {
 711     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 712                                 Qt::DescendingOrder :
 713                                 Qt::AscendingOrder;
 714     setSortOrder(order);
 715 }
 716
 717 void DolphinView::toggleAdditionalInfo(QAction* action)
 718 {
 719     const KFileItemDelegate::Information info =
 720         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 721
 722     KFileItemDelegate::InformationList list = additionalInfo();
 723
 724     const bool show = action->isChecked();
 725
 726     const int index = list.indexOf(info);
 727     const bool containsInfo = (index >= 0);
 728     if (show && !containsInfo) {
 729         list.append(info);
 730         setAdditionalInfo(list);
 731     } else if (!show && containsInfo) {
 732         list.removeAt(index);
 733         setAdditionalInfo(list);
 734         Q_ASSERT(list.indexOf(info) < 0);
 735     }
 736 }
 737
 738 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 739 {
 740     QWidget::mouseReleaseEvent(event);
 741     setActive(true);
 742 }
 743
 744 void DolphinView::wheelEvent(QWheelEvent* event)
 745 {
 746     if (event->modifiers() & Qt::ControlModifier) {
 747         const int delta = event->delta();
 748         const int level = zoomLevel();
 749         if (delta > 0) {
 750             setZoomLevel(level + 1);
 751         } else if (delta < 0) {
 752             setZoomLevel(level - 1);
 753         }
 754         event->accept();
 755     }
 756 }
 757
 758 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 759 {
 760     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 761         m_controller->requestActivation();
 762     }
 763
 764     return QWidget::eventFilter(watched, event);
 765 }
 766
 767 void DolphinView::activate()
 768 {
 769     setActive(true);
 770 }
 771
 772 void DolphinView::triggerItem(const KFileItem& item)
 773 {
 774     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 775     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 776         // items are selected by the user, hence don't trigger the
 777         // item specified by 'index'
 778         return;
 779     }
 780
 781     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 782     if (item.isNull() || m_isContextMenuOpen) {
 783         return;
 784     }
 785
 786     if (m_toolTipManager != 0) {
 787         m_toolTipManager->hideTip();
 788     }
 789     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 790 }
 791
 792 void DolphinView::emitSelectionChangedSignal()
 793 {
 794     emit selectionChanged(DolphinView::selectedItems());
 795 }
 796
 797 void DolphinView::openContextMenu(const QPoint& pos)
 798 {
 799     KFileItem item;
 800     if (isColumnViewActive()) {
 801         item = m_columnView->itemAt(pos);
 802     } else {
 803         const QModelIndex index = itemView()->indexAt(pos);
 804         if (index.isValid() && (index.column() == DolphinModel::Name)) {
 805             const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 806             item = m_dolphinModel->itemForIndex(dolphinModelIndex);
 807         }
 808     }
 809
 810     if (m_toolTipManager != 0) {
 811         m_toolTipManager->hideTip();
 812     }
 813
 814     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 815     emit requestContextMenu(item, url());
 816     m_isContextMenuOpen = false;
 817 }
 818
 819 void DolphinView::dropUrls(const KUrl::List& urls,
 820                            const KUrl& destPath,
 821                            const KFileItem& destItem)
 822 {
 823     Q_ASSERT(!urls.isEmpty());
 824     const KUrl destination = !destItem.isNull() && destItem.isDir() ?
 825                              destItem.url() : destPath;
 826     const KUrl sourceDir = KUrl(urls.first().directory());
 827     if (sourceDir != destination) {
 828         DolphinDropController dropController(this);
 829         // forward doingOperation signal up to the mainwindow
 830         connect(&dropController, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)),
 831                 this, SIGNAL(doingOperation(KIO::FileUndoManager::CommandType)));
 832         dropController.dropUrls(urls, destination);
 833     }
 834 }
 835
 836 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 837 {
 838     ViewProperties props(viewPropertiesUrl());
 839     props.setSorting(sorting);
 840
 841     m_proxyModel->setSorting(sorting);
 842
 843     emit sortingChanged(sorting);
 844 }
 845
 846 void DolphinView::updateSortOrder(Qt::SortOrder order)
 847 {
 848     ViewProperties props(viewPropertiesUrl());
 849     props.setSortOrder(order);
 850
 851     m_proxyModel->setSortOrder(order);
 852
 853     emit sortOrderChanged(order);
 854 }
 855
 856 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 857 {
 858     ViewProperties props(viewPropertiesUrl());
 859     props.setAdditionalInfo(info);
 860     props.save();
 861
 862     m_fileItemDelegate->setShowInformation(info);
 863
 864     emit additionalInfoChanged();
 865 }
 866
 867 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 868 {
 869     const bool enable = (m_mode == DolphinView::DetailsView) ||
 870                         (m_mode == DolphinView::IconsView);
 871
 872     QAction* showSizeInfo = collection->action("show_size_info");
 873     QAction* showDateInfo = collection->action("show_date_info");
 874     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 875     QAction* showOwnerInfo = collection->action("show_owner_info");
 876     QAction* showGroupInfo = collection->action("show_group_info");
 877     QAction* showMimeInfo = collection->action("show_mime_info");
 878
 879     showSizeInfo->setChecked(false);
 880     showDateInfo->setChecked(false);
 881     showPermissionsInfo->setChecked(false);
 882     showOwnerInfo->setChecked(false);
 883     showGroupInfo->setChecked(false);
 884     showMimeInfo->setChecked(false);
 885
 886     showSizeInfo->setEnabled(enable);
 887     showDateInfo->setEnabled(enable);
 888     showPermissionsInfo->setEnabled(enable);
 889     showOwnerInfo->setEnabled(enable);
 890     showGroupInfo->setEnabled(enable);
 891     showMimeInfo->setEnabled(enable);
 892
 893     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 894         switch (info) {
 895         case KFileItemDelegate::Size:
 896             showSizeInfo->setChecked(true);
 897             break;
 898         case KFileItemDelegate::ModificationTime:
 899             showDateInfo->setChecked(true);
 900             break;
 901         case KFileItemDelegate::Permissions:
 902             showPermissionsInfo->setChecked(true);
 903             break;
 904         case KFileItemDelegate::Owner:
 905             showOwnerInfo->setChecked(true);
 906             break;
 907         case KFileItemDelegate::OwnerAndGroup:
 908             showGroupInfo->setChecked(true);
 909             break;
 910         case KFileItemDelegate::FriendlyMimeType:
 911             showMimeInfo->setChecked(true);
 912             break;
 913         default:
 914             break;
 915         }
 916     }
 917 }
 918
 919 QPair<bool, QString> DolphinView::pasteInfo() const
 920 {
 921     QPair<bool, QString> ret;
 922     QClipboard* clipboard = QApplication::clipboard();
 923     const QMimeData* mimeData = clipboard->mimeData();
 924
 925     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 926     if (!urls.isEmpty()) {
 927         // disable the paste action if no writing is supported
 928         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url());
 929         ret.first = KonqFileItemCapabilities(KFileItemList() << item).supportsWriting();
 930
 931         if (urls.count() == 1) {
 932             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 933             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 934                                         i18nc("@action:inmenu", "Paste One File");
 935
 936         } else {
 937             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 938         }
 939     } else {
 940         ret.first = false;
 941         ret.second = i18nc("@action:inmenu", "Paste");
 942     }
 943
 944     return ret;
 945 }
 946
 947 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 948 {
 949     m_tabsForFiles = tabsForFiles;
 950 }
 951
 952 bool DolphinView::isTabsForFilesEnabled() const
 953 {
 954     return m_tabsForFiles;
 955 }
 956
 957 void DolphinView::emitContentsMoved()
 958 {
 959     // only emit the contents moved signal if:
 960     // - no directory loading is ongoing (this would reset the contents position
 961     //   always to (0, 0))
 962     // - if the Column View is active: the column view does an automatic
 963     //   positioning during the loading operation, which must be remembered
 964     if (!m_loadingDirectory || isColumnViewActive()) {
 965         const QPoint pos(contentsPosition());
 966         emit contentsMoved(pos.x(), pos.y());
 967     }
 968 }
 969
 970 void DolphinView::showHoverInformation(const KFileItem& item)
 971 {
 972     emit requestItemInfo(item);
 973 }
 974
 975 void DolphinView::clearHoverInformation()
 976 {
 977     emit requestItemInfo(KFileItem());
 978 }
 979
 980 void DolphinView::slotDeleteFileFinished(KJob* job)
 981 {
 982     if (job->error() == 0) {
 983         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
 984     } else {
 985         emit errorMessage(job->errorString());
 986     }
 987 }
 988
 989 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
 990 {
 991     if (oldUrl == m_controller->url()) {
 992         m_controller->setUrl(newUrl);
 993     }
 994 }
 995
 996 void DolphinView::slotRequestUrlChange(const KUrl& url)
 997 {
 998     emit requestUrlChange(url);
 999     m_controller->setUrl(url);
1000 }
1001
1002 void DolphinView::restoreCurrentItem()
1003 {
1004     const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_currentItemUrl);
1005     if (dirIndex.isValid()) {
1006         const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
1007         QAbstractItemView* view = itemView();
1008         const bool clearSelection = !hasSelection();
1009         view->setCurrentIndex(proxyIndex);
1010         if (clearSelection) {
1011             view->clearSelection();
1012         }
1013     }
1014 }
1015
1016 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1017 {
1018     if (!url.isValid()) {
1019         const QString location(url.pathOrUrl());
1020         if (location.isEmpty()) {
1021             emit errorMessage(i18nc("@info:status", "The location is empty."));
1022         } else {
1023             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1024         }
1025         return;
1026     }
1027
1028     m_loadingDirectory = true;
1029
1030     m_dirLister->stop();
1031     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1032
1033     if (isColumnViewActive()) {
1034         // adjusting the directory lister is not enough in the case of the
1035         // column view, as each column has its own directory lister internally...
1036         if (reload) {
1037             m_columnView->reload();
1038         } else {
1039             m_columnView->showColumn(url);
1040         }
1041     }
1042 }
1043
1044 KUrl DolphinView::viewPropertiesUrl() const
1045 {
1046     if (isColumnViewActive()) {
1047         return m_columnView->rootUrl();
1048     }
1049
1050     return url();
1051 }
1052
1053 void DolphinView::applyViewProperties(const KUrl& url)
1054 {
1055     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
1056         // The column view is active, hence don't apply the view properties
1057         // of sub directories (represented by columns) to the view. The
1058         // view always represents the properties of the first column.
1059         return;
1060     }
1061
1062     const ViewProperties props(url);
1063
1064     const Mode mode = props.viewMode();
1065     if (m_mode != mode) {
1066         m_mode = mode;
1067         createView();
1068         emit modeChanged();
1069     }
1070     if (itemView() == 0) {
1071         createView();
1072     }
1073     Q_ASSERT(itemView() != 0);
1074     Q_ASSERT(m_fileItemDelegate != 0);
1075
1076     const bool showHiddenFiles = props.showHiddenFiles();
1077     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1078         m_dirLister->setShowingDotFiles(showHiddenFiles);
1079         emit showHiddenFilesChanged();
1080     }
1081
1082     m_storedCategorizedSorting = props.categorizedSorting();
1083     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1084     if (categorized != m_proxyModel->isCategorizedModel()) {
1085         m_proxyModel->setCategorizedModel(categorized);
1086         emit categorizedSortingChanged();
1087     }
1088
1089     const DolphinView::Sorting sorting = props.sorting();
1090     if (sorting != m_proxyModel->sorting()) {
1091         m_proxyModel->setSorting(sorting);
1092         emit sortingChanged(sorting);
1093     }
1094
1095     const Qt::SortOrder sortOrder = props.sortOrder();
1096     if (sortOrder != m_proxyModel->sortOrder()) {
1097         m_proxyModel->setSortOrder(sortOrder);
1098         emit sortOrderChanged(sortOrder);
1099     }
1100
1101     KFileItemDelegate::InformationList info = props.additionalInfo();
1102     if (info != m_fileItemDelegate->showInformation()) {
1103         m_fileItemDelegate->setShowInformation(info);
1104         emit additionalInfoChanged();
1105     }
1106
1107     const bool showPreview = props.showPreview();
1108     if (showPreview != m_showPreview) {
1109         m_showPreview = showPreview;
1110         m_iconManager->setShowPreview(showPreview);
1111
1112         const int oldZoomLevel = m_controller->zoomLevel();
1113         emit showPreviewChanged();
1114
1115         // Enabling or disabling the preview might change the icon size of the view.
1116         // As the view does not emit a signal when the icon size has been changed,
1117         // the used zoom level of the controller must be adjusted manually:
1118         updateZoomLevel(oldZoomLevel);
1119     }
1120 }
1121
1122 void DolphinView::createView()
1123 {
1124     deleteView();
1125     Q_ASSERT(m_iconsView == 0);
1126     Q_ASSERT(m_detailsView == 0);
1127     Q_ASSERT(m_columnView == 0);
1128
1129     QAbstractItemView* view = 0;
1130     switch (m_mode) {
1131     case IconsView: {
1132         m_iconsView = new DolphinIconsView(this, m_controller);
1133         view = m_iconsView;
1134         break;
1135     }
1136
1137     case DetailsView:
1138         m_detailsView = new DolphinDetailsView(this, m_controller);
1139         view = m_detailsView;
1140         break;
1141
1142     case ColumnView:
1143         m_columnView = new DolphinColumnView(this, m_controller);
1144         view = m_columnView;
1145         break;
1146     }
1147
1148     Q_ASSERT(view != 0);
1149     view->installEventFilter(this);
1150
1151     if (m_mode != ColumnView) {
1152         // Give the view the ability to auto-expand its directories on hovering
1153         // (the column view takes care about this itself). If the details view
1154         // uses expandable folders, the auto-expanding should be used always.
1155         DolphinSettings& settings = DolphinSettings::instance();
1156         const bool enabled = settings.generalSettings()->autoExpandFolders() ||
1157                             ((m_detailsView != 0) && settings.detailsModeSettings()->expandableFolders());
1158
1159         FolderExpander* folderExpander = new FolderExpander(view, m_proxyModel);
1160         folderExpander->setEnabled(enabled);
1161         connect(folderExpander, SIGNAL(enterDir(const QModelIndex&)),
1162                 m_controller, SLOT(triggerItem(const QModelIndex&)));
1163     }
1164
1165     m_controller->setItemView(view);
1166
1167     m_fileItemDelegate = new KFileItemDelegate(view);
1168     view->setItemDelegate(m_fileItemDelegate);
1169
1170     view->setModel(m_proxyModel);
1171     if (m_selectionModel != 0) {
1172         view->setSelectionModel(m_selectionModel);
1173     } else {
1174         m_selectionModel = view->selectionModel();
1175     }
1176
1177     // reparent the selection model, as it should not be deleted
1178     // when deleting the model
1179     m_selectionModel->setParent(this);
1180
1181     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1182
1183     m_iconManager = new IconManager(view, m_proxyModel);
1184     m_iconManager->setShowPreview(m_showPreview);
1185
1186     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
1187         m_toolTipManager = new ToolTipManager(view, m_proxyModel);
1188     }
1189
1190     m_topLayout->insertWidget(1, view);
1191
1192     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1193             this, SLOT(emitSelectionChangedSignal()));
1194     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1195             this, SLOT(emitContentsMoved()));
1196     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1197             this, SLOT(emitContentsMoved()));
1198 }
1199
1200 void DolphinView::deleteView()
1201 {
1202     QAbstractItemView* view = itemView();
1203     if (view != 0) {
1204         // It's important to set the keyboard focus to the parent
1205         // before deleting the view: Otherwise when having a split
1206         // view the other view will get the focus and will request
1207         // an activation (see DolphinView::eventFilter()).
1208         setFocus();
1209
1210         m_topLayout->removeWidget(view);
1211         view->close();
1212         view->deleteLater();
1213         view = 0;
1214         m_iconsView = 0;
1215         m_detailsView = 0;
1216         m_columnView = 0;
1217         m_fileItemDelegate = 0;
1218         m_iconManager = 0;
1219         m_toolTipManager = 0;
1220     }
1221 }
1222
1223 QAbstractItemView* DolphinView::itemView() const
1224 {
1225     if (m_detailsView != 0) {
1226         return m_detailsView;
1227     } else if (m_columnView != 0) {
1228         return m_columnView;
1229     }
1230
1231     return m_iconsView;
1232 }
1233
1234 bool DolphinView::isCutItem(const KFileItem& item) const
1235 {
1236     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1237     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1238
1239     const KUrl& itemUrl = item.url();
1240     KUrl::List::const_iterator it = cutUrls.begin();
1241     const KUrl::List::const_iterator end = cutUrls.end();
1242     while (it != end) {
1243         if (*it == itemUrl) {
1244             return true;
1245         }
1246         ++it;
1247     }
1248
1249     return false;
1250 }
1251
1252 void DolphinView::pasteToUrl(const KUrl& url)
1253 {
1254     QClipboard* clipboard = QApplication::clipboard();
1255     const QMimeData* mimeData = clipboard->mimeData();
1256
1257     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1258     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1259         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1260         emit doingOperation(KIO::FileUndoManager::Move);
1261         clipboard->clear();
1262     } else {
1263         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1264         emit doingOperation(KIO::FileUndoManager::Copy);
1265     }
1266 }
1267
1268 void DolphinView::updateZoomLevel(int oldZoomLevel)
1269 {
1270     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(itemView()->iconSize());
1271     if (oldZoomLevel != newZoomLevel) {
1272         m_controller->setZoomLevel(newZoomLevel);
1273         emit zoomLevelChanged(newZoomLevel);
1274     }
1275 }
1276
1277 KUrl::List DolphinView::simplifiedSelectedUrls() const
1278 {
1279     KUrl::List list = selectedUrls();
1280     if ((m_detailsView != 0) && m_detailsView->itemsExpandable()) {
1281         list = KonqOperations::simplifiedUrlList(list);
1282     }
1283     return list;
1284 }
1285
1286 #include "dolphinview.moc"