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