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 <QtGui/QApplication>
  24 #include <QtGui/QClipboard>
  25 #include <QtGui/QKeyEvent>
  26 #include <QtGui/QItemSelection>
  27 #include <QtGui/QBoxLayout>
  28 #include <QtCore/QTimer>
  29 #include <QtGui/QScrollBar>
  30
  31 #include <kdirmodel.h>
  32 #include <kfileitemdelegate.h>
  33 #include <kfileplacesmodel.h>
  34 #include <klocale.h>
  35 #include <kiconeffect.h>
  36 #include <kio/netaccess.h>
  37 #include <kio/renamedialog.h>
  38 #include <kio/previewjob.h>
  39 #include <kmimetyperesolver.h>
  40 #include <konqmimedata.h>
  41 #include <konq_operations.h>
  42 #include <kurl.h>
  43
  44 #include "dolphincolumnview.h"
  45 #include "dolphincontroller.h"
  46 #include "dolphinstatusbar.h"
  47 #include "dolphinmainwindow.h"
  48 #include "dolphindirlister.h"
  49 #include "dolphinsortfilterproxymodel.h"
  50 #include "dolphindetailsview.h"
  51 #include "dolphiniconsview.h"
  52 #include "dolphincontextmenu.h"
  53 #include "dolphinitemcategorizer.h"
  54 #include "filterbar.h"
  55 #include "renamedialog.h"
  56 #include "kurlnavigator.h"
  57 #include "viewproperties.h"
  58 #include "dolphinsettings.h"
  59 #include "dolphin_generalsettings.h"
  60
  61 DolphinView::DolphinView(DolphinMainWindow* mainWindow,
  62                          QWidget* parent,
  63                          const KUrl& url,
  64                          Mode mode,
  65                          bool showHiddenFiles) :
  66     QWidget(parent),
  67     m_showProgress(false),
  68     m_blockContentsMovedSignal(false),
  69     m_initializeColumnView(false),
  70     m_mode(mode),
  71     m_iconSize(0),
  72     m_folderCount(0),
  73     m_fileCount(0),
  74     m_mainWindow(mainWindow),
  75     m_topLayout(0),
  76     m_urlNavigator(0),
  77     m_controller(0),
  78     m_iconsView(0),
  79     m_detailsView(0),
  80     m_columnView(0),
  81     m_fileItemDelegate(0),
  82     m_filterBar(0),
  83     m_statusBar(0),
  84     m_dirModel(0),
  85     m_dirLister(0),
  86     m_proxyModel(0)
  87 {
  88     hide();
  89     setFocusPolicy(Qt::StrongFocus);
  90     m_topLayout = new QVBoxLayout(this);
  91     m_topLayout->setSpacing(0);
  92     m_topLayout->setMargin(0);
  93
  94     connect(m_mainWindow, SIGNAL(activeViewChanged()),
  95             this, SLOT(updateActivationState()));
  96
  97     QClipboard* clipboard = QApplication::clipboard();
  98     connect(clipboard, SIGNAL(dataChanged()),
  99             this, SLOT(updateCutItems()));
 100
 101     m_urlNavigator = new KUrlNavigator(DolphinSettings::instance().placesModel(), url, this);
 102     m_urlNavigator->setUrlEditable(DolphinSettings::instance().generalSettings()->editableUrl());
 103     m_urlNavigator->setHomeUrl(DolphinSettings::instance().generalSettings()->homeUrl());
 104     connect(m_urlNavigator, SIGNAL(urlChanged(const KUrl&)),
 105             this, SLOT(changeDirectory(const KUrl&)));
 106     connect(m_urlNavigator, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&)),
 107             this, SLOT(dropUrls(const KUrl::List&, const KUrl&)));
 108     connect(m_urlNavigator, SIGNAL(activated()),
 109             this, SLOT(requestActivation()));
 110     connect(this, SIGNAL(contentsMoved(int, int)),
 111             m_urlNavigator, SLOT(savePosition(int, int)));
 112
 113     m_statusBar = new DolphinStatusBar(this);
 114
 115     m_dirLister = new DolphinDirLister();
 116     m_dirLister->setAutoUpdate(true);
 117     m_dirLister->setMainWindow(this);
 118     m_dirLister->setShowingDotFiles(showHiddenFiles);
 119     m_dirLister->setDelayedMimeTypes(true);
 120
 121     connect(m_dirLister, SIGNAL(clear()),
 122             this, SLOT(updateStatusBar()));
 123     connect(m_dirLister, SIGNAL(percent(int)),
 124             this, SLOT(updateProgress(int)));
 125     connect(m_dirLister, SIGNAL(deleteItem(KFileItem*)),
 126             this, SLOT(updateStatusBar()));
 127     connect(m_dirLister, SIGNAL(completed()),
 128             this, SLOT(updateItemCount()));
 129     connect(m_dirLister, SIGNAL(completed()),
 130             this, SLOT(updateCutItems()));
 131     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
 132             this, SLOT(generatePreviews(const KFileItemList&)));
 133     connect(m_dirLister, SIGNAL(infoMessage(const QString&)),
 134             this, SLOT(showInfoMessage(const QString&)));
 135     connect(m_dirLister, SIGNAL(errorMessage(const QString&)),
 136             this, SLOT(showErrorMessage(const QString&)));
 137
 138     m_dirModel = new KDirModel();
 139     m_dirModel->setDirLister(m_dirLister);
 140     m_dirModel->setDropsAllowed(KDirModel::DropOnDirectory);
 141
 142     m_proxyModel = new DolphinSortFilterProxyModel(this);
 143     m_proxyModel->setSourceModel(m_dirModel);
 144
 145     m_controller = new DolphinController(this);
 146     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 147             this, SLOT(openContextMenu(const QPoint&)));
 148     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const QModelIndex&, QWidget*)),
 149             this, SLOT(dropUrls(const KUrl::List&, const QModelIndex&, QWidget*)));
 150     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 151             this, SLOT(updateSorting(DolphinView::Sorting)));
 152     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 153             this, SLOT(updateSortOrder(Qt::SortOrder)));
 154     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 155             this, SLOT(triggerItem(const QModelIndex&)));
 156     connect(m_controller, SIGNAL(selectionChanged()),
 157             this, SLOT(emitSelectionChangedSignal()));
 158     connect(m_controller, SIGNAL(activated()),
 159             this, SLOT(requestActivation()));
 160     connect(m_controller, SIGNAL(itemEntered(const QModelIndex&)),
 161             this, SLOT(showHoverInformation(const QModelIndex&)));
 162     connect(m_controller, SIGNAL(viewportEntered()),
 163             this, SLOT(clearHoverInformation()));
 164
 165     createView();
 166
 167     m_iconSize = K3Icon::SizeMedium;
 168
 169     m_filterBar = new FilterBar(this);
 170     m_filterBar->hide();
 171     connect(m_filterBar, SIGNAL(filterChanged(const QString&)),
 172             this, SLOT(changeNameFilter(const QString&)));
 173     connect(m_filterBar, SIGNAL(closeRequest()),
 174             this, SLOT(closeFilterBar()));
 175
 176     m_topLayout->addWidget(m_urlNavigator);
 177     m_topLayout->addWidget(itemView());
 178     m_topLayout->addWidget(m_filterBar);
 179     m_topLayout->addWidget(m_statusBar);
 180 }
 181
 182 DolphinView::~DolphinView()
 183 {
 184     delete m_dirLister;
 185     m_dirLister = 0;
 186 }
 187
 188 void DolphinView::setUrl(const KUrl& url)
 189 {
 190     m_urlNavigator->setUrl(url);
 191     m_controller->setUrl(url);
 192 }
 193
 194 const KUrl& DolphinView::url() const
 195 {
 196     return m_urlNavigator->url();
 197 }
 198
 199 bool DolphinView::isActive() const
 200 {
 201     return m_mainWindow->activeView() == this;
 202 }
 203
 204 void DolphinView::setMode(Mode mode)
 205 {
 206     if (mode == m_mode) {
 207         return; // the wished mode is already set
 208     }
 209
 210     m_mode = mode;
 211
 212     if (isColumnViewActive()) {
 213         // When changing the mode in the column view, it makes sense
 214         // to go back to the root URL of the column view automatically.
 215         // Otherwise there it would not be possible to turn off the column view
 216         // without focusing the first column.
 217         setUrl(m_dirLister->url());
 218     }
 219
 220     ViewProperties props(m_urlNavigator->url());
 221     props.setViewMode(m_mode);
 222
 223     createView();
 224     startDirLister(m_urlNavigator->url());
 225
 226     emit modeChanged();
 227 }
 228
 229 DolphinView::Mode DolphinView::mode() const
 230 {
 231     return m_mode;
 232 }
 233
 234 void DolphinView::setShowPreview(bool show)
 235 {
 236     ViewProperties props(m_urlNavigator->url());
 237     props.setShowPreview(show);
 238
 239     m_controller->setShowPreview(show);
 240     emit showPreviewChanged();
 241
 242     startDirLister(m_urlNavigator->url(), true);
 243 }
 244
 245 bool DolphinView::showPreview() const
 246 {
 247     return m_controller->showPreview();
 248 }
 249
 250 void DolphinView::setShowHiddenFiles(bool show)
 251 {
 252     if (m_dirLister->showingDotFiles() == show) {
 253         return;
 254     }
 255
 256     ViewProperties props(m_urlNavigator->url());
 257     props.setShowHiddenFiles(show);
 258
 259     m_dirLister->setShowingDotFiles(show);
 260     emit showHiddenFilesChanged();
 261
 262     startDirLister(m_urlNavigator->url(), true);
 263 }
 264
 265 bool DolphinView::showHiddenFiles() const
 266 {
 267     return m_dirLister->showingDotFiles();
 268 }
 269
 270 void DolphinView::setCategorizedSorting(bool categorized)
 271 {
 272     if (!supportsCategorizedSorting() || (categorized == categorizedSorting())) {
 273         return;
 274     }
 275
 276     Q_ASSERT(m_iconsView != 0);
 277     if (categorized) {
 278         Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 279         m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 280     } else {
 281         KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 282         m_iconsView->setItemCategorizer(0);
 283         delete categorizer;
 284     }
 285
 286     ViewProperties props(m_urlNavigator->url());
 287     props.setCategorizedSorting(categorized);
 288     props.save();
 289
 290     emit categorizedSortingChanged();
 291 }
 292
 293 bool DolphinView::categorizedSorting() const
 294 {
 295     if (!supportsCategorizedSorting()) {
 296         return false;
 297     }
 298
 299     Q_ASSERT(m_iconsView != 0);
 300     return m_iconsView->itemCategorizer() != 0;
 301 }
 302
 303 bool DolphinView::supportsCategorizedSorting() const
 304 {
 305     return m_iconsView != 0;
 306 }
 307
 308 void DolphinView::renameSelectedItems()
 309 {
 310     DolphinView* view = mainWindow()->activeView();
 311     const KUrl::List urls = selectedUrls();
 312     if (urls.count() > 1) {
 313         // More than one item has been selected for renaming. Open
 314         // a rename dialog and rename all items afterwards.
 315         RenameDialog dialog(urls);
 316         if (dialog.exec() == QDialog::Rejected) {
 317             return;
 318         }
 319
 320         const QString& newName = dialog.newName();
 321         if (newName.isEmpty()) {
 322             view->statusBar()->setMessage(dialog.errorString(),
 323                                           DolphinStatusBar::Error);
 324         } else {
 325             // TODO: check how this can be integrated into KonqUndoManager/KonqOperations
 326             // as one operation instead of n rename operations like it is done now...
 327             Q_ASSERT(newName.contains('#'));
 328
 329             // iterate through all selected items and rename them...
 330             const int replaceIndex = newName.indexOf('#');
 331             Q_ASSERT(replaceIndex >= 0);
 332             int index = 1;
 333
 334             KUrl::List::const_iterator it = urls.begin();
 335             KUrl::List::const_iterator end = urls.end();
 336             while (it != end) {
 337                 const KUrl& oldUrl = *it;
 338                 QString number;
 339                 number.setNum(index++);
 340
 341                 QString name(newName);
 342                 name.replace(replaceIndex, 1, number);
 343
 344                 if (oldUrl.fileName() != name) {
 345                     KUrl newUrl = oldUrl;
 346                     newUrl.setFileName(name);
 347                     m_mainWindow->rename(oldUrl, newUrl);
 348                 }
 349                 ++it;
 350             }
 351         }
 352     } else {
 353         // Only one item has been selected for renaming. Use the custom
 354         // renaming mechanism from the views.
 355         Q_ASSERT(urls.count() == 1);
 356
 357         // TODO: Think about using KFileItemDelegate as soon as it supports editing.
 358         // Currently the RenameDialog is used, but I'm not sure whether inline renaming
 359         // is a benefit for the user at all -> let's wait for some input first...
 360         RenameDialog dialog(urls);
 361         if (dialog.exec() == QDialog::Rejected) {
 362             return;
 363         }
 364
 365         const QString& newName = dialog.newName();
 366         if (newName.isEmpty()) {
 367             view->statusBar()->setMessage(dialog.errorString(),
 368                                           DolphinStatusBar::Error);
 369         } else {
 370             const KUrl& oldUrl = urls.first();
 371             KUrl newUrl = oldUrl;
 372             newUrl.setFileName(newName);
 373             m_mainWindow->rename(oldUrl, newUrl);
 374         }
 375     }
 376 }
 377
 378 void DolphinView::selectAll()
 379 {
 380     selectAll(QItemSelectionModel::Select);
 381 }
 382
 383 void DolphinView::invertSelection()
 384 {
 385     selectAll(QItemSelectionModel::Toggle);
 386 }
 387
 388 DolphinStatusBar* DolphinView::statusBar() const
 389 {
 390     return m_statusBar;
 391 }
 392
 393 int DolphinView::contentsX() const
 394 {
 395     return itemView()->horizontalScrollBar()->value();
 396 }
 397
 398 int DolphinView::contentsY() const
 399 {
 400     return itemView()->verticalScrollBar()->value();
 401 }
 402
 403 void DolphinView::emitRequestItemInfo(const KUrl& url)
 404 {
 405     emit requestItemInfo(url);
 406 }
 407
 408 bool DolphinView::isFilterBarVisible() const
 409 {
 410     return m_filterBar->isVisible();
 411 }
 412
 413 bool DolphinView::isUrlEditable() const
 414 {
 415     return m_urlNavigator->isUrlEditable();
 416 }
 417
 418 void DolphinView::zoomIn()
 419 {
 420     m_controller->triggerZoomIn();
 421 }
 422
 423 void DolphinView::zoomOut()
 424 {
 425     m_controller->triggerZoomOut();
 426 }
 427
 428 bool DolphinView::isZoomInPossible() const
 429 {
 430     return m_controller->isZoomInPossible();
 431 }
 432
 433 bool DolphinView::isZoomOutPossible() const
 434 {
 435     return m_controller->isZoomOutPossible();
 436 }
 437
 438 void DolphinView::setSorting(Sorting sorting)
 439 {
 440     if (sorting != this->sorting()) {
 441         updateSorting(sorting);
 442     }
 443 }
 444
 445 DolphinView::Sorting DolphinView::sorting() const
 446 {
 447     return m_proxyModel->sorting();
 448 }
 449
 450 void DolphinView::setSortOrder(Qt::SortOrder order)
 451 {
 452     if (sortOrder() != order) {
 453         updateSortOrder(order);
 454     }
 455 }
 456
 457 Qt::SortOrder DolphinView::sortOrder() const
 458 {
 459     return m_proxyModel->sortOrder();
 460 }
 461
 462 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 463 {
 464     ViewProperties props(m_urlNavigator->url());
 465     props.setAdditionalInfo(info);
 466
 467     m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 468     m_fileItemDelegate->setAdditionalInformation(info);
 469
 470     emit additionalInfoChanged(info);
 471     startDirLister(m_urlNavigator->url(), true);
 472 }
 473
 474 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 475 {
 476     return m_fileItemDelegate->additionalInformation();
 477 }
 478
 479 void DolphinView::goBack()
 480 {
 481     m_urlNavigator->goBack();
 482 }
 483
 484 void DolphinView::goForward()
 485 {
 486     m_urlNavigator->goForward();
 487 }
 488
 489 void DolphinView::goUp()
 490 {
 491     m_urlNavigator->goUp();
 492 }
 493
 494 void DolphinView::goHome()
 495 {
 496     m_urlNavigator->goHome();
 497 }
 498
 499 void DolphinView::setUrlEditable(bool editable)
 500 {
 501     m_urlNavigator->setUrlEditable(editable);
 502 }
 503
 504 bool DolphinView::hasSelection() const
 505 {
 506     return itemView()->selectionModel()->hasSelection();
 507 }
 508
 509 void DolphinView::clearSelection()
 510 {
 511     itemView()->selectionModel()->clear();
 512 }
 513
 514 KFileItemList DolphinView::selectedItems() const
 515 {
 516     const QAbstractItemView* view = itemView();
 517
 518     // Our view has a selection, we will map them back to the DirModel
 519     // and then fill the KFileItemList.
 520     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 521
 522     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 523     KFileItemList itemList;
 524
 525     const QModelIndexList indexList = selection.indexes();
 526     QModelIndexList::const_iterator end = indexList.end();
 527     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 528         Q_ASSERT((*it).isValid());
 529
 530         KFileItem* item = m_dirModel->itemForIndex(*it);
 531         if (item != 0) {
 532             itemList.append(item);
 533         }
 534     }
 535
 536     return itemList;
 537 }
 538
 539 KUrl::List DolphinView::selectedUrls() const
 540 {
 541     KUrl::List urls;
 542
 543     const KFileItemList list = selectedItems();
 544     KFileItemList::const_iterator it = list.begin();
 545     const KFileItemList::const_iterator end = list.end();
 546     while (it != end) {
 547         KFileItem* item = *it;
 548         urls.append(item->url());
 549         ++it;
 550     }
 551
 552     return urls;
 553 }
 554
 555 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 556 {
 557     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 558     return m_dirModel->itemForIndex(dirModelIndex);
 559 }
 560
 561 void DolphinView::rename(const KUrl& source, const QString& newName)
 562 {
 563     bool ok = false;
 564
 565     if (newName.isEmpty() || (source.fileName() == newName)) {
 566         return;
 567     }
 568
 569     KUrl dest(source.upUrl());
 570     dest.addPath(newName);
 571
 572     const bool destExists = KIO::NetAccess::exists(dest,
 573                             false,
 574                             mainWindow()->activeView());
 575     if (destExists) {
 576         // the destination already exists, hence ask the user
 577         // how to proceed...
 578         KIO::RenameDialog renameDialog(this,
 579                                        i18n("File Already Exists"),
 580                                        source.path(),
 581                                        dest.path(),
 582                                        KIO::M_OVERWRITE);
 583         switch (renameDialog.exec()) {
 584         case KIO::R_OVERWRITE:
 585             // the destination should be overwritten
 586             ok = KIO::NetAccess::file_move(source, dest, -1, true);
 587             break;
 588
 589         case KIO::R_RENAME: {
 590             // a new name for the destination has been used
 591             KUrl newDest(renameDialog.newDestUrl());
 592             ok = KIO::NetAccess::file_move(source, newDest);
 593             break;
 594         }
 595
 596         default:
 597             // the renaming operation has been canceled
 598             return;
 599         }
 600     } else {
 601         // no destination exists, hence just move the file to
 602         // do the renaming
 603         ok = KIO::NetAccess::file_move(source, dest);
 604     }
 605
 606     const QString destFileName = dest.fileName();
 607     if (ok) {
 608         m_statusBar->setMessage(i18n("Renamed file '%1' to '%2'.", source.fileName(), destFileName),
 609                                 DolphinStatusBar::OperationCompleted);
 610
 611         KonqOperations::rename(this, source, destFileName);
 612     } else {
 613         m_statusBar->setMessage(i18n("Renaming of file '%1' to '%2' failed.", source.fileName(), destFileName),
 614                                 DolphinStatusBar::Error);
 615     }
 616 }
 617
 618 void DolphinView::reload()
 619 {
 620     const KUrl& url = m_urlNavigator->url();
 621     changeDirectory(url);
 622     startDirLister(url, true);
 623 }
 624
 625 void DolphinView::refresh()
 626 {
 627     createView();
 628     reload();
 629 }
 630
 631 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 632 {
 633     QWidget::mouseReleaseEvent(event);
 634     mainWindow()->setActiveView(this);
 635 }
 636
 637 DolphinMainWindow* DolphinView::mainWindow() const
 638 {
 639     return m_mainWindow;
 640 }
 641
 642 void DolphinView::changeDirectory(const KUrl& url)
 643 {
 644     if (!isActive()) {
 645         requestActivation();
 646     }
 647
 648     const ViewProperties props(url);
 649
 650     const Mode mode = props.viewMode();
 651     bool changeMode = (m_mode != mode);
 652     if (changeMode && isColumnViewActive()) {
 653         // The column view is active. Only change the
 654         // mode if the current URL is no child of the column view.
 655         if (m_dirLister->url().isParentOf(url)) {
 656             changeMode = false;
 657         }
 658     }
 659
 660     if (changeMode) {
 661         m_mode = mode;
 662         createView();
 663         emit modeChanged();
 664
 665         if (m_mode == ColumnView) {
 666             // The mode has been changed to the Column View. When starting the dir
 667             // lister with DolphinView::startDirLister() it is important to give a
 668             // hint that the dir lister may not keep the current directory
 669             // although this is the default for showing a hierarchy.
 670             m_initializeColumnView = true;
 671         }
 672     }
 673
 674     const bool showHiddenFiles = props.showHiddenFiles();
 675     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 676         m_dirLister->setShowingDotFiles(showHiddenFiles);
 677         emit showHiddenFilesChanged();
 678     }
 679
 680     const bool categorized = props.categorizedSorting();
 681     if (categorized != categorizedSorting()) {
 682         if (supportsCategorizedSorting()) {
 683             Q_ASSERT(m_iconsView != 0);
 684             if (categorized) {
 685                 Q_ASSERT(m_iconsView->itemCategorizer() == 0);
 686                 m_iconsView->setItemCategorizer(new DolphinItemCategorizer());
 687             } else {
 688                 KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
 689                 m_iconsView->setItemCategorizer(0);
 690                 delete categorizer;
 691             }
 692         }
 693         emit categorizedSortingChanged();
 694     }
 695
 696     const DolphinView::Sorting sorting = props.sorting();
 697     if (sorting != m_proxyModel->sorting()) {
 698         m_proxyModel->setSorting(sorting);
 699         emit sortingChanged(sorting);
 700     }
 701
 702     const Qt::SortOrder sortOrder = props.sortOrder();
 703     if (sortOrder != m_proxyModel->sortOrder()) {
 704         m_proxyModel->setSortOrder(sortOrder);
 705         emit sortOrderChanged(sortOrder);
 706     }
 707
 708     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 709     if (info != m_fileItemDelegate->additionalInformation()) {
 710         m_controller->setShowAdditionalInfo(info != KFileItemDelegate::NoInformation);
 711         m_fileItemDelegate->setAdditionalInformation(info);
 712         emit additionalInfoChanged(info);
 713     }
 714
 715     const bool showPreview = props.showPreview();
 716     if (showPreview != m_controller->showPreview()) {
 717         m_controller->setShowPreview(showPreview);
 718         emit showPreviewChanged();
 719     }
 720
 721     startDirLister(url);
 722     emit urlChanged(url);
 723
 724     m_statusBar->clear();
 725 }
 726
 727 void DolphinView::triggerItem(const QModelIndex& index)
 728 {
 729     if (!isValidNameIndex(index)) {
 730         return;
 731     }
 732
 733     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 734     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 735         // items are selected by the user, hence don't trigger the
 736         // item specified by 'index'
 737         return;
 738     }
 739
 740     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 741     if (item == 0) {
 742         return;
 743     }
 744
 745     // Prefer the local path over the URL. This assures that the
 746     // volume space information is correct. Assuming that the URL is media:/sda1,
 747     // and the local path is /windows/C: For the URL the space info is related
 748     // to the root partition (and hence wrong) and for the local path the space
 749     // info is related to the windows partition (-> correct).
 750     const QString localPath(item->localPath());
 751     KUrl url;
 752     if (localPath.isEmpty()) {
 753         url = item->url();
 754     } else {
 755         url = localPath;
 756     }
 757
 758     if (item->isDir()) {
 759         setUrl(url);
 760     } else if (item->isFile()) {
 761         // allow to browse through ZIP and tar files
 762         KMimeType::Ptr mime = item->mimeTypePtr();
 763         if (mime->is("application/zip")) {
 764             url.setProtocol("zip");
 765             setUrl(url);
 766         } else if (mime->is("application/x-tar") ||
 767                    mime->is("application/x-tarz") ||
 768                    mime->is("application/x-bzip-compressed-tar") ||
 769                    mime->is("application/x-compressed-tar") ||
 770                    mime->is("application/x-tzo")) {
 771             url.setProtocol("tar");
 772             setUrl(url);
 773         } else {
 774             item->run();
 775         }
 776     } else {
 777         item->run();
 778     }
 779 }
 780
 781 void DolphinView::updateProgress(int percent)
 782 {
 783     if (m_showProgress) {
 784         m_statusBar->setProgress(percent);
 785     }
 786 }
 787
 788 void DolphinView::updateItemCount()
 789 {
 790     if (m_showProgress) {
 791         m_statusBar->setProgressText(QString());
 792         m_statusBar->setProgress(100);
 793         m_showProgress = false;
 794     }
 795
 796     KFileItemList items(m_dirLister->items());
 797     KFileItemList::const_iterator it = items.begin();
 798     const KFileItemList::const_iterator end = items.end();
 799
 800     m_fileCount = 0;
 801     m_folderCount = 0;
 802
 803     while (it != end) {
 804         KFileItem* item = *it;
 805         if (item->isDir()) {
 806             ++m_folderCount;
 807         } else {
 808             ++m_fileCount;
 809         }
 810         ++it;
 811     }
 812
 813     updateStatusBar();
 814
 815     m_blockContentsMovedSignal = false;
 816     QTimer::singleShot(0, this, SLOT(restoreContentsPos()));
 817 }
 818
 819 void DolphinView::generatePreviews(const KFileItemList& items)
 820 {
 821     if (m_controller->showPreview()) {
 822
 823         // Must turn QList<KFileItem *> to QList<KFileItem>...
 824         QList<KFileItem> itemsToPreview;
 825         foreach( KFileItem* it, items )
 826             itemsToPreview.append( *it );
 827
 828         KIO::PreviewJob* job = KIO::filePreview(itemsToPreview, 128);
 829         connect(job, SIGNAL(gotPreview(const KFileItem&, const QPixmap&)),
 830                 this, SLOT(showPreview(const KFileItem&, const QPixmap&)));
 831     }
 832 }
 833
 834 void DolphinView::showPreview(const KFileItem& item, const QPixmap& pixmap)
 835 {
 836     Q_ASSERT(!item.isNull());
 837     if (item.url().directory() != m_dirLister->url().path()) {
 838         // the preview job is still working on items of an older URL, hence
 839         // the item is not part of the directory model anymore
 840         return;
 841     }
 842
 843     const QModelIndex idx = m_dirModel->indexForItem(item);
 844     if (idx.isValid() && (idx.column() == 0)) {
 845         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 846         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(item)) {
 847             KIconEffect iconEffect;
 848             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 849             m_dirModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 850         } else {
 851             m_dirModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 852         }
 853     }
 854 }
 855
 856 void DolphinView::restoreContentsPos()
 857 {
 858     KUrl currentUrl = m_urlNavigator->url();
 859     if (!currentUrl.isEmpty()) {
 860         QAbstractItemView* view = itemView();
 861         // TODO: view->setCurrentItem(m_urlNavigator->currentFileName());
 862         QPoint pos = m_urlNavigator->savedPosition();
 863         view->horizontalScrollBar()->setValue(pos.x());
 864         view->verticalScrollBar()->setValue(pos.y());
 865     }
 866 }
 867
 868 void DolphinView::showInfoMessage(const QString& msg)
 869 {
 870     m_statusBar->setMessage(msg, DolphinStatusBar::Information);
 871 }
 872
 873 void DolphinView::showErrorMessage(const QString& msg)
 874 {
 875     m_statusBar->setMessage(msg, DolphinStatusBar::Error);
 876 }
 877
 878 void DolphinView::emitSelectionChangedSignal()
 879 {
 880     emit selectionChanged(DolphinView::selectedItems());
 881 }
 882
 883 void DolphinView::closeFilterBar()
 884 {
 885     m_filterBar->hide();
 886     emit showFilterBarChanged(false);
 887 }
 888
 889 void DolphinView::startDirLister(const KUrl& url, bool reload)
 890 {
 891     if (!url.isValid()) {
 892         const QString location(url.pathOrUrl());
 893         if (location.isEmpty()) {
 894             m_statusBar->setMessage(i18n("The location is empty."), DolphinStatusBar::Error);
 895         } else {
 896             m_statusBar->setMessage(i18n("The location '%1' is invalid.", location),
 897                                     DolphinStatusBar::Error);
 898         }
 899         return;
 900     }
 901
 902     // Only show the directory loading progress if the status bar does
 903     // not contain another progress information. This means that
 904     // the directory loading progress information has the lowest priority.
 905     const QString progressText(m_statusBar->progressText());
 906     m_showProgress = progressText.isEmpty() ||
 907                      (progressText == i18n("Loading folder..."));
 908     if (m_showProgress) {
 909         m_statusBar->setProgressText(i18n("Loading folder..."));
 910         m_statusBar->setProgress(0);
 911     }
 912
 913     m_cutItemsCache.clear();
 914     m_blockContentsMovedSignal = true;
 915     m_dirLister->stop();
 916
 917     bool openDir = true;
 918     bool keepOldDirs = isColumnViewActive() && !m_initializeColumnView;
 919     m_initializeColumnView = false;
 920
 921     if (keepOldDirs) {
 922         if (reload) {
 923             keepOldDirs = false;
 924
 925             const KUrl& dirListerUrl = m_dirLister->url();
 926             if (dirListerUrl.isValid()) {
 927                 const KUrl::List dirs = m_dirLister->directories();
 928                 KUrl url;
 929                 foreach(url, dirs) {
 930                     m_dirLister->updateDirectory(url);
 931                 }
 932                 openDir = false;
 933             }
 934         } else if (m_dirLister->directories().contains(url)) {
 935             // The dir lister contains the directory already, so
 936             // KDirLister::openUrl() may not been invoked twice.
 937             m_dirLister->updateDirectory(url);
 938             openDir = false;
 939         } else {
 940             const KUrl& dirListerUrl = m_dirLister->url();
 941             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 942                 // The current URL is not a child of the dir lister
 943                 // URL. This may happen when e. g. a bookmark has been selected
 944                 // and hence the view must be reset.
 945                 keepOldDirs = false;
 946             }
 947         }
 948     }
 949
 950     if (openDir) {
 951         m_dirLister->openUrl(url, keepOldDirs, reload);
 952     }
 953 }
 954
 955 QString DolphinView::defaultStatusBarText() const
 956 {
 957     return KIO::itemsSummaryString(m_fileCount + m_folderCount,
 958                                    m_fileCount,
 959                                    m_folderCount,
 960                                    0, false);
 961 }
 962
 963 QString DolphinView::selectionStatusBarText() const
 964 {
 965     QString text;
 966     const KFileItemList list = selectedItems();
 967     if (list.isEmpty()) {
 968         // when an item is triggered, it is temporary selected but selectedItems()
 969         // will return an empty list
 970         return QString();
 971     }
 972
 973     int fileCount = 0;
 974     int folderCount = 0;
 975     KIO::filesize_t byteSize = 0;
 976     KFileItemList::const_iterator it = list.begin();
 977     const KFileItemList::const_iterator end = list.end();
 978     while (it != end) {
 979         KFileItem* item = *it;
 980         if (item->isDir()) {
 981             ++folderCount;
 982         } else {
 983             ++fileCount;
 984             byteSize += item->size();
 985         }
 986         ++it;
 987     }
 988
 989     if (folderCount > 0) {
 990         text = i18np("1 Folder selected", "%1 Folders selected", folderCount);
 991         if (fileCount > 0) {
 992             text += ", ";
 993         }
 994     }
 995
 996     if (fileCount > 0) {
 997         const QString sizeText(KIO::convertSize(byteSize));
 998         text += i18np("1 File selected (%2)", "%1 Files selected (%2)", fileCount, sizeText);
 999     }
1000
1001     return text;
1002 }
1003
1004 void DolphinView::showFilterBar(bool show)
1005 {
1006     Q_ASSERT(m_filterBar != 0);
1007     if (show) {
1008         m_filterBar->show();
1009     } else {
1010         m_filterBar->hide();
1011     }
1012 }
1013
1014 void DolphinView::updateStatusBar()
1015 {
1016     // As the item count information is less important
1017     // in comparison with other messages, it should only
1018     // be shown if:
1019     // - the status bar is empty or
1020     // - shows already the item count information or
1021     // - shows only a not very important information
1022     // - if any progress is given don't show the item count info at all
1023     const QString msg(m_statusBar->message());
1024     const bool updateStatusBarMsg = (msg.isEmpty() ||
1025                                      (msg == m_statusBar->defaultText()) ||
1026                                      (m_statusBar->type() == DolphinStatusBar::Information)) &&
1027                                     (m_statusBar->progress() == 100);
1028
1029     const QString text(hasSelection() ? selectionStatusBarText() : defaultStatusBarText());
1030     m_statusBar->setDefaultText(text);
1031
1032     if (updateStatusBarMsg) {
1033         m_statusBar->setMessage(text, DolphinStatusBar::Default);
1034     }
1035 }
1036
1037 void DolphinView::requestActivation()
1038 {
1039     m_mainWindow->setActiveView(this);
1040 }
1041
1042 void DolphinView::changeSelection(const KFileItemList& selection)
1043 {
1044     clearSelection();
1045     if (selection.isEmpty()) {
1046         return;
1047     }
1048     KUrl baseUrl = url();
1049     KUrl url;
1050     QItemSelection new_selection;
1051     foreach(KFileItem* item, selection) {
1052         url = item->url().upUrl();
1053         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
1054             QModelIndex index = m_proxyModel->mapFromSource(m_dirModel->indexForItem(*item));
1055             new_selection.select(index, index);
1056         }
1057     }
1058     itemView()->selectionModel()->select(new_selection,
1059                                          QItemSelectionModel::ClearAndSelect
1060                                          | QItemSelectionModel::Current);
1061 }
1062
1063 void DolphinView::changeNameFilter(const QString& nameFilter)
1064 {
1065     // The name filter of KDirLister does a 'hard' filtering, which
1066     // means that only the items are shown where the names match
1067     // exactly the filter. This is non-transparent for the user, which
1068     // just wants to have a 'soft' filtering: does the name contain
1069     // the filter string?
1070     QString adjustedFilter(nameFilter);
1071     adjustedFilter.insert(0, '*');
1072     adjustedFilter.append('*');
1073
1074     // Use the ProxyModel to filter:
1075     // This code is #ifdefed as setNameFilter behaves
1076     // slightly different than the QSortFilterProxyModel
1077     // as it will not remove directories. I will ask
1078     // our beloved usability experts for input
1079     // -- z.
1080 #if 0
1081     m_dirLister->setNameFilter(adjustedFilter);
1082     m_dirLister->emitChanges();
1083 #else
1084     m_proxyModel->setFilterRegExp(nameFilter);
1085 #endif
1086 }
1087
1088 void DolphinView::openContextMenu(const QPoint& pos)
1089 {
1090     KFileItem* item = 0;
1091
1092     const QModelIndex index = itemView()->indexAt(pos);
1093     if (isValidNameIndex(index)) {
1094         item = fileItem(index);
1095     }
1096
1097     DolphinContextMenu contextMenu(m_mainWindow, item, url());
1098     contextMenu.open();
1099 }
1100
1101 void DolphinView::dropUrls(const KUrl::List& urls,
1102                            const QModelIndex& index,
1103                            QWidget* source)
1104 {
1105     KFileItem* directory = 0;
1106     if (isValidNameIndex(index)) {
1107         KFileItem* item = fileItem(index);
1108         Q_ASSERT(item != 0);
1109         if (item->isDir()) {
1110             // the URLs are dropped above a directory
1111             directory = item;
1112         }
1113     }
1114
1115     if ((directory == 0) && (source == itemView())) {
1116         // The dropping is done into the same viewport where
1117         // the dragging has been started. Just ignore this...
1118         return;
1119     }
1120
1121     const KUrl& destination = (directory == 0) ? url() :
1122                               directory->url();
1123     dropUrls(urls, destination);
1124 }
1125
1126 void DolphinView::dropUrls(const KUrl::List& urls,
1127                            const KUrl& destination)
1128 {
1129     m_mainWindow->dropUrls(urls, destination);
1130 }
1131
1132 void DolphinView::updateSorting(DolphinView::Sorting sorting)
1133 {
1134     ViewProperties props(url());
1135     props.setSorting(sorting);
1136
1137     m_proxyModel->setSorting(sorting);
1138
1139     emit sortingChanged(sorting);
1140 }
1141
1142 void DolphinView::updateSortOrder(Qt::SortOrder order)
1143 {
1144     ViewProperties props(url());
1145     props.setSortOrder(order);
1146
1147     m_proxyModel->setSortOrder(order);
1148
1149     emit sortOrderChanged(order);
1150 }
1151
1152 void DolphinView::emitContentsMoved()
1153 {
1154     if (!m_blockContentsMovedSignal) {
1155         emit contentsMoved(contentsX(), contentsY());
1156     }
1157 }
1158
1159 void DolphinView::updateActivationState()
1160 {
1161     m_urlNavigator->setActive(isActive());
1162     if (isActive()) {
1163         emit urlChanged(url());
1164         emit selectionChanged(selectedItems());
1165     }
1166 }
1167
1168 void DolphinView::updateCutItems()
1169 {
1170     // restore the icons of all previously selected items to the
1171     // original state...
1172     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
1173     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
1174     while (it != end) {
1175         const QModelIndex index = m_dirModel->indexForUrl((*it).url);
1176         if (index.isValid()) {
1177             m_dirModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
1178         }
1179         ++it;
1180     }
1181     m_cutItemsCache.clear();
1182
1183     // ... and apply an item effect to all currently cut items
1184     applyCutItemEffect();
1185 }
1186
1187 void DolphinView::showHoverInformation(const QModelIndex& index)
1188 {
1189     if (hasSelection()) {
1190         return;
1191     }
1192
1193     const KFileItem* item = fileItem(index);
1194     if (item != 0) {
1195         m_statusBar->setMessage(item->getStatusBarInfo(), DolphinStatusBar::Default);
1196         emit requestItemInfo(item->url());
1197     }
1198 }
1199
1200 void DolphinView::clearHoverInformation()
1201 {
1202     m_statusBar->clear();
1203 }
1204
1205
1206 void DolphinView::createView()
1207 {
1208     // delete current view
1209     QAbstractItemView* view = itemView();
1210     if (view != 0) {
1211         m_topLayout->removeWidget(view);
1212         view->close();
1213         if (view == m_iconsView) {
1214             KItemCategorizer* categorizer = m_iconsView->itemCategorizer();
1215             m_iconsView->setItemCategorizer(0);
1216             delete categorizer;
1217         }
1218         view->deleteLater();
1219         view = 0;
1220         m_iconsView = 0;
1221         m_detailsView = 0;
1222         m_columnView = 0;
1223         m_fileItemDelegate = 0;
1224     }
1225
1226     Q_ASSERT(m_iconsView == 0);
1227     Q_ASSERT(m_detailsView == 0);
1228     Q_ASSERT(m_columnView == 0);
1229
1230     // ... and recreate it representing the current mode
1231     switch (m_mode) {
1232     case IconsView:
1233         m_iconsView = new DolphinIconsView(this, m_controller);
1234         view = m_iconsView;
1235         break;
1236
1237     case DetailsView:
1238         m_detailsView = new DolphinDetailsView(this, m_controller);
1239         view = m_detailsView;
1240         break;
1241
1242     case ColumnView:
1243         m_columnView = new DolphinColumnView(this, m_controller);
1244         view = m_columnView;
1245         break;
1246     }
1247
1248     Q_ASSERT(view != 0);
1249
1250     m_fileItemDelegate = new KFileItemDelegate(view);
1251     view->setItemDelegate(m_fileItemDelegate);
1252
1253     view->setModel(m_proxyModel);
1254     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1255
1256     new KMimeTypeResolver(view, m_dirModel);
1257     m_topLayout->insertWidget(1, view);
1258
1259     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1260             m_controller, SLOT(indicateSelectionChange()));
1261     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1262             this, SLOT(emitContentsMoved()));
1263     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1264             this, SLOT(emitContentsMoved()));
1265 }
1266
1267 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
1268 {
1269     QItemSelectionModel* selectionModel = itemView()->selectionModel();
1270     const QAbstractItemModel* itemModel = selectionModel->model();
1271
1272     const QModelIndex topLeft = itemModel->index(0, 0);
1273     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
1274                                     itemModel->columnCount() - 1);
1275
1276     QItemSelection selection(topLeft, bottomRight);
1277     selectionModel->select(selection, flags);
1278 }
1279
1280 QAbstractItemView* DolphinView::itemView() const
1281 {
1282     if (m_detailsView != 0) {
1283         return m_detailsView;
1284     } else if (m_columnView != 0) {
1285         return m_columnView;
1286     }
1287
1288     return m_iconsView;
1289 }
1290
1291 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
1292 {
1293     return index.isValid() && (index.column() == KDirModel::Name);
1294 }
1295
1296 bool DolphinView::isCutItem(const KFileItem& item) const
1297 {
1298     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1299     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1300
1301     const KUrl& itemUrl = item.url();
1302     KUrl::List::const_iterator it = cutUrls.begin();
1303     const KUrl::List::const_iterator end = cutUrls.end();
1304     while (it != end) {
1305         if (*it == itemUrl) {
1306             return true;
1307         }
1308         ++it;
1309     }
1310
1311     return false;
1312 }
1313
1314 void DolphinView::applyCutItemEffect()
1315 {
1316     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1317     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
1318         return;
1319     }
1320
1321     KFileItemList items(m_dirLister->items());
1322     KFileItemList::const_iterator it = items.begin();
1323     const KFileItemList::const_iterator end = items.end();
1324     while (it != end) {
1325         KFileItem* item = *it;
1326         if (isCutItem(*item)) {
1327             const QModelIndex index = m_dirModel->indexForItem(*item);
1328             const KFileItem* item = m_dirModel->itemForIndex(index);
1329             const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
1330             if ((value.type() == QVariant::Icon) && (item != 0)) {
1331                 const QIcon icon(qvariant_cast<QIcon>(value));
1332                 QPixmap pixmap = icon.pixmap(128, 128);
1333
1334                 // remember current pixmap for the item to be able
1335                 // to restore it when other items get cut
1336                 CutItem cutItem;
1337                 cutItem.url = item->url();
1338                 cutItem.pixmap = pixmap;
1339                 m_cutItemsCache.append(cutItem);
1340
1341                 // apply icon effect to the cut item
1342                 KIconEffect iconEffect;
1343                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
1344                 m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
1345             }
1346         }
1347         ++it;
1348     }
1349 }
1350
1351 #include "dolphinview.moc"