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 <assert.h>
  24
  25 #include <QApplication>
  26 #include <QClipboard>
  27 #include <QDropEvent>
  28 #include <QItemSelectionModel>
  29 #include <QMouseEvent>
  30 #include <QVBoxLayout>
  31
  32 #include <kdirmodel.h>
  33 #include <kfileitemdelegate.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 "dolphincontroller.h"
  45 #include "dolphinstatusbar.h"
  46 #include "dolphinmainwindow.h"
  47 #include "dolphindirlister.h"
  48 #include "dolphinsortfilterproxymodel.h"
  49 #include "dolphindetailsview.h"
  50 #include "dolphiniconsview.h"
  51 #include "dolphincontextmenu.h"
  52 #include "filterbar.h"
  53 #include "renamedialog.h"
  54 #include "urlnavigator.h"
  55 #include "viewproperties.h"
  56
  57 DolphinView::DolphinView(DolphinMainWindow* mainWindow,
  58                          QWidget* parent,
  59                          const KUrl& url,
  60                          Mode mode,
  61                          bool showHiddenFiles) :
  62     QWidget(parent),
  63     m_showProgress(false),
  64     m_mode(mode),
  65     m_iconSize(0),
  66     m_folderCount(0),
  67     m_fileCount(0),
  68     m_mainWindow(mainWindow),
  69     m_topLayout(0),
  70     m_urlNavigator(0),
  71     m_controller(0),
  72     m_iconsView(0),
  73     m_detailsView(0),
  74     m_fileItemDelegate(0),
  75     m_filterBar(0),
  76     m_statusBar(0),
  77     m_dirModel(0),
  78     m_dirLister(0),
  79     m_proxyModel(0)
  80 {
  81     hide();
  82     setFocusPolicy(Qt::StrongFocus);
  83     m_topLayout = new QVBoxLayout(this);
  84     m_topLayout->setSpacing(0);
  85     m_topLayout->setMargin(0);
  86
  87     connect(m_mainWindow, SIGNAL(activeViewChanged()),
  88             this, SLOT(updateActivationState()));
  89
  90     m_urlNavigator = new UrlNavigator(url, this);
  91     m_urlNavigator->setShowHiddenFiles(showHiddenFiles);
  92     connect(m_urlNavigator, SIGNAL(urlChanged(const KUrl&)),
  93             this, SLOT(loadDirectory(const KUrl&)));
  94     connect(m_urlNavigator, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&)),
  95             this, SLOT(dropUrls(const KUrl::List&, const KUrl&)));
  96     connect(m_urlNavigator, SIGNAL(activated()),
  97             this, SLOT(requestActivation()));
  98     connect(this, SIGNAL(contentsMoved(int, int)),
  99             m_urlNavigator, SLOT(storeContentsPosition(int, int)));
 100
 101     m_statusBar = new DolphinStatusBar(this);
 102
 103     m_dirLister = new DolphinDirLister();
 104     m_dirLister->setAutoUpdate(true);
 105     m_dirLister->setMainWindow(this);
 106     m_dirLister->setShowingDotFiles(showHiddenFiles);
 107     m_dirLister->setDelayedMimeTypes(true);
 108
 109     connect(m_dirLister, SIGNAL(clear()),
 110             this, SLOT(updateStatusBar()));
 111     connect(m_dirLister, SIGNAL(percent(int)),
 112             this, SLOT(updateProgress(int)));
 113     connect(m_dirLister, SIGNAL(deleteItem(KFileItem*)),
 114             this, SLOT(updateStatusBar()));
 115     connect(m_dirLister, SIGNAL(completed()),
 116             this, SLOT(updateItemCount()));
 117     connect(m_dirLister, SIGNAL(completed()),
 118             this, SLOT(updateCutItems()));
 119     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
 120             this, SLOT(generatePreviews(const KFileItemList&)));
 121     connect(m_dirLister, SIGNAL(infoMessage(const QString&)),
 122             this, SLOT(showInfoMessage(const QString&)));
 123     connect(m_dirLister, SIGNAL(errorMessage(const QString&)),
 124             this, SLOT(showErrorMessage(const QString&)));
 125
 126     m_dirModel = new KDirModel();
 127     m_dirModel->setDirLister(m_dirLister);
 128     m_dirModel->setDropsAllowed(KDirModel::DropOnDirectory);
 129
 130     m_proxyModel = new DolphinSortFilterProxyModel(this);
 131     m_proxyModel->setSourceModel(m_dirModel);
 132
 133     m_controller = new DolphinController(this);
 134     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 135             this, SLOT(openContextMenu(const QPoint&)));
 136     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const QModelIndex&, QWidget*)),
 137             this, SLOT(dropUrls(const KUrl::List&, const QModelIndex&, QWidget*)));
 138     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 139             this, SLOT(updateSorting(DolphinView::Sorting)));
 140     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 141             this, SLOT(updateSortOrder(Qt::SortOrder)));
 142     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 143             this, SLOT(triggerItem(const QModelIndex&)));
 144     connect(m_controller, SIGNAL(selectionChanged()),
 145             this, SLOT(emitSelectionChangedSignal()));
 146     connect(m_controller, SIGNAL(activated()),
 147             this, SLOT(requestActivation()));
 148
 149     createView();
 150
 151     m_iconSize = K3Icon::SizeMedium;
 152
 153     m_filterBar = new FilterBar(this);
 154     m_filterBar->hide();
 155     connect(m_filterBar, SIGNAL(filterChanged(const QString&)),
 156            this, SLOT(changeNameFilter(const QString&)));
 157     connect(m_filterBar, SIGNAL(closeRequest()),
 158             this, SLOT(closeFilterBar()));
 159
 160     m_topLayout->addWidget(m_urlNavigator);
 161     m_topLayout->addWidget(itemView());
 162     m_topLayout->addWidget(m_filterBar);
 163     m_topLayout->addWidget(m_statusBar);
 164
 165     loadDirectory(m_urlNavigator->url());
 166 }
 167
 168 DolphinView::~DolphinView()
 169 {
 170     delete m_dirLister;
 171     m_dirLister = 0;
 172 }
 173
 174 void DolphinView::setUrl(const KUrl& url)
 175 {
 176     m_urlNavigator->setUrl(url);
 177     m_controller->setUrl(url);
 178 }
 179
 180 const KUrl& DolphinView::url() const
 181 {
 182     return m_urlNavigator->url();
 183 }
 184
 185 bool DolphinView::isActive() const
 186 {
 187     return m_mainWindow->activeView() == this;
 188 }
 189
 190 void DolphinView::setMode(Mode mode)
 191 {
 192     if (mode == m_mode) {
 193         return; // the wished mode is already set
 194     }
 195
 196     m_mode = mode;
 197
 198     ViewProperties props(m_urlNavigator->url());
 199     props.setViewMode(m_mode);
 200
 201     createView();
 202     startDirLister(m_urlNavigator->url());
 203
 204     emit modeChanged();
 205 }
 206
 207 DolphinView::Mode DolphinView::mode() const
 208 {
 209     return m_mode;
 210 }
 211
 212 void DolphinView::setShowPreview(bool show)
 213 {
 214     ViewProperties props(m_urlNavigator->url());
 215     props.setShowPreview(show);
 216
 217     m_controller->setShowPreview(show);
 218
 219     emit showPreviewChanged();
 220     reload();
 221 }
 222
 223 bool DolphinView::showPreview() const
 224 {
 225     return m_controller->showPreview();
 226 }
 227
 228 void DolphinView::setShowHiddenFiles(bool show)
 229 {
 230     if (m_dirLister->showingDotFiles() == show) {
 231         return;
 232     }
 233
 234     ViewProperties props(m_urlNavigator->url());
 235     props.setShowHiddenFiles(show);
 236     props.save();
 237
 238     m_dirLister->setShowingDotFiles(show);
 239     m_urlNavigator->setShowHiddenFiles(show);
 240
 241     emit showHiddenFilesChanged();
 242
 243     reload();
 244 }
 245
 246 bool DolphinView::showHiddenFiles() const
 247 {
 248     return m_dirLister->showingDotFiles();
 249 }
 250
 251 void DolphinView::renameSelectedItems()
 252 {
 253     const KUrl::List urls = selectedUrls();
 254     if (urls.count() > 1) {
 255         // More than one item has been selected for renaming. Open
 256         // a rename dialog and rename all items afterwards.
 257         RenameDialog dialog(urls);
 258         if (dialog.exec() == QDialog::Rejected) {
 259             return;
 260         }
 261
 262         DolphinView* view = mainWindow()->activeView();
 263         const QString& newName = dialog.newName();
 264         if (newName.isEmpty()) {
 265             view->statusBar()->setMessage(i18n("The new item name is invalid."),
 266                                           DolphinStatusBar::Error);
 267         }
 268         else {
 269             // TODO: check how this can be integrated into KonqUndoManager/KonqOperations
 270
 271             //UndoManager& undoMan = UndoManager::instance();
 272             //undoMan.beginMacro();
 273
 274             assert(newName.contains('#'));
 275
 276             const int urlsCount = urls.count();
 277
 278             // iterate through all selected items and rename them...
 279             const int replaceIndex = newName.indexOf('#');
 280             assert(replaceIndex >= 0);
 281             for (int i = 0; i < urlsCount; ++i) {
 282                 const KUrl& source = urls[i];
 283                 QString number;
 284                 number.setNum(i + 1);
 285
 286                 QString name(newName);
 287                 name.replace(replaceIndex, 1, number);
 288
 289                 if (source.fileName() != name) {
 290                     KUrl dest(source.upUrl());
 291                     dest.addPath(name);
 292
 293                     const bool destExists = KIO::NetAccess::exists(dest, false, view);
 294                     if (destExists) {
 295                         view->statusBar()->setMessage(i18n("Renaming failed (item '%1' already exists).",name),
 296                                                       DolphinStatusBar::Error);
 297                         break;
 298                     }
 299                     else if (KIO::NetAccess::file_move(source, dest)) {
 300                         // TODO: From the users point of view he executed one 'rename n files' operation,
 301                         // but internally we store it as n 'rename 1 file' operations for the undo mechanism.
 302                         //DolphinCommand command(DolphinCommand::Rename, source, dest);
 303                         //undoMan.addCommand(command);
 304                     }
 305                 }
 306             }
 307
 308             //undoMan.endMacro();
 309         }
 310     }
 311     else {
 312         // Only one item has been selected for renaming. Use the custom
 313         // renaming mechanism from the views.
 314         assert(urls.count() == 1);
 315         // TODO:
 316         /*if (m_mode == DetailsView) {
 317             Q3ListViewItem* item = m_iconsView->firstChild();
 318             while (item != 0) {
 319                 if (item->isSelected()) {
 320                     m_iconsView->rename(item, DolphinDetailsView::NameColumn);
 321                     break;
 322                 }
 323                 item = item->nextSibling();
 324             }
 325         }
 326         else {
 327             KFileIconViewItem* item = static_cast<KFileIconViewItem*>(m_iconsView->firstItem());
 328             while (item != 0) {
 329                 if (item->isSelected()) {
 330                     item->rename();
 331                     break;
 332                 }
 333                 item = static_cast<KFileIconViewItem*>(item->nextItem());
 334             }
 335         }*/
 336     }
 337 }
 338
 339 void DolphinView::selectAll()
 340 {
 341     selectAll(QItemSelectionModel::Select);
 342 }
 343
 344 void DolphinView::invertSelection()
 345 {
 346     selectAll(QItemSelectionModel::Toggle);
 347 }
 348
 349 DolphinStatusBar* DolphinView::statusBar() const
 350 {
 351     return m_statusBar;
 352 }
 353
 354 int DolphinView::contentsX() const
 355 {
 356
 357     return itemView()->horizontalScrollBar()->value();
 358 }
 359
 360 int DolphinView::contentsY() const
 361 {
 362     return itemView()->verticalScrollBar()->value();
 363 }
 364
 365 void DolphinView::refreshSettings()
 366 {
 367     startDirLister(m_urlNavigator->url());
 368 }
 369
 370 void DolphinView::emitRequestItemInfo(const KUrl& url)
 371 {
 372     emit requestItemInfo(url);
 373 }
 374
 375 bool DolphinView::isFilterBarVisible() const
 376 {
 377   return m_filterBar->isVisible();
 378 }
 379
 380 bool DolphinView::isUrlEditable() const
 381 {
 382     return m_urlNavigator->isUrlEditable();
 383 }
 384
 385 void DolphinView::zoomIn()
 386 {
 387     m_controller->triggerZoomIn();
 388 }
 389
 390 void DolphinView::zoomOut()
 391 {
 392     m_controller->triggerZoomOut();
 393 }
 394
 395 bool DolphinView::isZoomInPossible() const
 396 {
 397     return m_controller->isZoomInPossible();
 398 }
 399
 400 bool DolphinView::isZoomOutPossible() const
 401 {
 402     return m_controller->isZoomOutPossible();
 403 }
 404
 405 void DolphinView::setSorting(Sorting sorting)
 406 {
 407     if (sorting != this->sorting()) {
 408         updateSorting(sorting);
 409     }
 410 }
 411
 412 DolphinView::Sorting DolphinView::sorting() const
 413 {
 414     return m_proxyModel->sorting();
 415 }
 416
 417 void DolphinView::setSortOrder(Qt::SortOrder order)
 418 {
 419     if (sortOrder() != order) {
 420         updateSortOrder(order);
 421     }
 422 }
 423
 424 Qt::SortOrder DolphinView::sortOrder() const
 425 {
 426     return m_proxyModel->sortOrder();
 427 }
 428
 429 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 430 {
 431     ViewProperties props(m_urlNavigator->url());
 432     props.setAdditionalInfo(info);
 433
 434     m_fileItemDelegate->setAdditionalInformation(info);
 435
 436     emit additionalInfoChanged(info);
 437     reload();
 438 }
 439
 440 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 441 {
 442     return m_fileItemDelegate->additionalInformation();
 443 }
 444
 445 void DolphinView::goBack()
 446 {
 447     m_urlNavigator->goBack();
 448 }
 449
 450 void DolphinView::goForward()
 451 {
 452     m_urlNavigator->goForward();
 453 }
 454
 455 void DolphinView::goUp()
 456 {
 457     m_urlNavigator->goUp();
 458 }
 459
 460 void DolphinView::goHome()
 461 {
 462     m_urlNavigator->goHome();
 463 }
 464
 465 void DolphinView::setUrlEditable(bool editable)
 466 {
 467     m_urlNavigator->editUrl(editable);
 468 }
 469
 470 const QLinkedList<UrlNavigator::HistoryElem> DolphinView::urlHistory(int& index) const
 471 {
 472     return m_urlNavigator->history(index);
 473 }
 474
 475 bool DolphinView::hasSelection() const
 476 {
 477     return itemView()->selectionModel()->hasSelection();
 478 }
 479
 480 KFileItemList DolphinView::selectedItems() const
 481 {
 482     const QAbstractItemView* view = itemView();
 483
 484     // Our view has a selection, we will map them back to the DirModel
 485     // and then fill the KFileItemList.
 486     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 487
 488     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 489     KFileItemList itemList;
 490
 491     const QModelIndexList indexList = selection.indexes();
 492     QModelIndexList::const_iterator end = indexList.end();
 493     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 494         Q_ASSERT((*it).isValid());
 495
 496         KFileItem* item = m_dirModel->itemForIndex(*it);
 497         if (item != 0) {
 498             itemList.append(item);
 499         }
 500     }
 501
 502     return itemList;
 503 }
 504
 505 KUrl::List DolphinView::selectedUrls() const
 506 {
 507     KUrl::List urls;
 508
 509     const KFileItemList list = selectedItems();
 510     KFileItemList::const_iterator it = list.begin();
 511     const KFileItemList::const_iterator end = list.end();
 512     while (it != end) {
 513         KFileItem* item = *it;
 514         urls.append(item->url());
 515         ++it;
 516     }
 517
 518     return urls;
 519 }
 520
 521 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 522 {
 523     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 524     return m_dirModel->itemForIndex(dirModelIndex);
 525 }
 526
 527 void DolphinView::rename(const KUrl& source, const QString& newName)
 528 {
 529     bool ok = false;
 530
 531     if (newName.isEmpty() || (source.fileName() == newName)) {
 532         return;
 533     }
 534
 535     KUrl dest(source.upUrl());
 536     dest.addPath(newName);
 537
 538     const bool destExists = KIO::NetAccess::exists(dest,
 539                                                    false,
 540                                                    mainWindow()->activeView());
 541     if (destExists) {
 542         // the destination already exists, hence ask the user
 543         // how to proceed...
 544         KIO::RenameDialog renameDialog(this,
 545                                        i18n("File Already Exists"),
 546                                        source.path(),
 547                                        dest.path(),
 548                                        KIO::M_OVERWRITE);
 549         switch (renameDialog.exec()) {
 550             case KIO::R_OVERWRITE:
 551                 // the destination should be overwritten
 552                 ok = KIO::NetAccess::file_move(source, dest, -1, true);
 553                 break;
 554
 555             case KIO::R_RENAME: {
 556                 // a new name for the destination has been used
 557                 KUrl newDest(renameDialog.newDestUrl());
 558                 ok = KIO::NetAccess::file_move(source, newDest);
 559                 break;
 560             }
 561
 562             default:
 563                 // the renaming operation has been canceled
 564                 reload();
 565                 return;
 566         }
 567     }
 568     else {
 569         // no destination exists, hence just move the file to
 570         // do the renaming
 571         ok = KIO::NetAccess::file_move(source, dest);
 572     }
 573
 574     const QString destFileName = dest.fileName();
 575     if (ok) {
 576         m_statusBar->setMessage(i18n("Renamed file '%1' to '%2'.",source.fileName(), destFileName),
 577                                 DolphinStatusBar::OperationCompleted);
 578
 579         KonqOperations::rename(this, source, destFileName);
 580     }
 581     else {
 582         m_statusBar->setMessage(i18n("Renaming of file '%1' to '%2' failed.",source.fileName(), destFileName),
 583                                 DolphinStatusBar::Error);
 584         reload();
 585     }
 586 }
 587
 588 void DolphinView::reload()
 589 {
 590     startDirLister(m_urlNavigator->url(), true);
 591 }
 592
 593 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 594 {
 595     QWidget::mouseReleaseEvent(event);
 596     mainWindow()->setActiveView(this);
 597 }
 598
 599 DolphinMainWindow* DolphinView::mainWindow() const
 600 {
 601     return m_mainWindow;
 602 }
 603
 604 void DolphinView::loadDirectory(const KUrl& url)
 605 {
 606     const ViewProperties props(url);
 607
 608     const Mode mode = props.viewMode();
 609     if (m_mode != mode) {
 610         m_mode = mode;
 611         createView();
 612         emit modeChanged();
 613     }
 614
 615     const bool showHiddenFiles = props.showHiddenFiles();
 616     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 617         m_dirLister->setShowingDotFiles(showHiddenFiles);
 618         emit showHiddenFilesChanged();
 619     }
 620
 621     const DolphinView::Sorting sorting = props.sorting();
 622     if (sorting != m_proxyModel->sorting()) {
 623         m_proxyModel->setSorting(sorting);
 624         emit sortingChanged(sorting);
 625     }
 626
 627     const Qt::SortOrder sortOrder = props.sortOrder();
 628     if (sortOrder != m_proxyModel->sortOrder()) {
 629         m_proxyModel->setSortOrder(sortOrder);
 630         emit sortOrderChanged(sortOrder);
 631     }
 632
 633     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 634     if (info != m_fileItemDelegate->additionalInformation()) {
 635         m_fileItemDelegate->setAdditionalInformation(info);
 636
 637         emit additionalInfoChanged(info);
 638     }
 639
 640     const bool showPreview = props.showPreview();
 641     if (showPreview != m_controller->showPreview()) {
 642         m_controller->setShowPreview(showPreview);
 643         emit showPreviewChanged();
 644     }
 645
 646     startDirLister(url);
 647     emit urlChanged(url);
 648
 649     m_statusBar->clear();
 650 }
 651
 652 void DolphinView::triggerItem(const QModelIndex& index)
 653 {
 654     if (!isValidNameIndex(index)) {
 655         return;
 656     }
 657
 658     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 659     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 660         // items are selected by the user, hence don't trigger the
 661         // item specified by 'index'
 662         return;
 663     }
 664
 665     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 666     if (item == 0) {
 667         return;
 668     }
 669
 670     // Prefer the local path over the URL. This assures that the
 671     // volume space information is correct. Assuming that the URL is media:/sda1,
 672     // and the local path is /windows/C: For the URL the space info is related
 673     // to the root partition (and hence wrong) and for the local path the space
 674     // info is related to the windows partition (-> correct).
 675     const QString localPath(item->localPath());
 676     KUrl url;
 677     if (localPath.isEmpty()) {
 678         url = item->url();
 679     }
 680     else {
 681         url = localPath;
 682     }
 683
 684     if (item->isDir()) {
 685         setUrl(url);
 686     }
 687     else if (item->isFile()) {
 688         // allow to browse through ZIP and tar files
 689         KMimeType::Ptr mime = item->mimeTypePtr();
 690         if (mime->is("application/x-zip")) {
 691             url.setProtocol("zip");
 692             setUrl(url);
 693         }
 694         else if (mime->is("application/x-tar") ||
 695                  mime->is("application/x-tarz") ||
 696                  mime->is("application/x-tbz") ||
 697                  mime->is("application/x-tgz") ||
 698                  mime->is("application/x-tzo")) {
 699             url.setProtocol("tar");
 700             setUrl(url);
 701         }
 702         else {
 703             item->run();
 704         }
 705     }
 706     else {
 707         item->run();
 708     }
 709 }
 710
 711 void DolphinView::updateProgress(int percent)
 712 {
 713     if (m_showProgress) {
 714         m_statusBar->setProgress(percent);
 715     }
 716 }
 717
 718 void DolphinView::updateItemCount()
 719 {
 720     if (m_showProgress) {
 721         m_statusBar->setProgressText(QString());
 722         m_statusBar->setProgress(100);
 723         m_showProgress = false;
 724     }
 725
 726     KFileItemList items(m_dirLister->items());
 727     KFileItemList::const_iterator it = items.begin();
 728     const KFileItemList::const_iterator end = items.end();
 729
 730     m_fileCount = 0;
 731     m_folderCount = 0;
 732
 733     while (it != end) {
 734         KFileItem* item = *it;
 735         if (item->isDir()) {
 736             ++m_folderCount;
 737         }
 738         else {
 739             ++m_fileCount;
 740         }
 741         ++it;
 742     }
 743
 744     updateStatusBar();
 745
 746     QTimer::singleShot(0, this, SLOT(restoreContentsPos()));
 747 }
 748
 749 void DolphinView::generatePreviews(const KFileItemList& items)
 750 {
 751     if (m_controller->showPreview()) {
 752         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 753         connect(job, SIGNAL(gotPreview(const KFileItem*, const QPixmap&)),
 754                 this, SLOT(showPreview(const KFileItem*, const QPixmap&)));
 755     }
 756
 757     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 758     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
 759         QTimer::singleShot(1000, this, SLOT(applyCutEffect()));
 760     }
 761 }
 762
 763 void DolphinView::showPreview(const KFileItem* item, const QPixmap& pixmap)
 764 {
 765     Q_ASSERT(item != 0);
 766     const QModelIndex idx = m_dirModel->indexForItem(*item);
 767     if (idx.isValid() && (idx.column() == 0)) {
 768         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 769         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(*item)) {
 770             KIconEffect iconEffect;
 771             QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 772             m_dirModel->setData(idx, cutPixmap, Qt::DecorationRole);
 773         }
 774         else {
 775             m_dirModel->setData(idx, pixmap, Qt::DecorationRole);
 776         }
 777     }
 778 }
 779
 780 void DolphinView::restoreContentsPos()
 781 {
 782     int index = 0;
 783     const QLinkedList<UrlNavigator::HistoryElem> history = urlHistory(index);
 784     if (!history.isEmpty()) {
 785         QAbstractItemView* view = itemView();
 786         // TODO: view->setCurrentItem(history[index].currentFileName());
 787
 788         QLinkedList<UrlNavigator::HistoryElem>::const_iterator it = history.begin();
 789         it += index;
 790         view->horizontalScrollBar()->setValue((*it).contentsX());
 791         view->verticalScrollBar()->setValue((*it).contentsY());
 792     }
 793 }
 794
 795 void DolphinView::showInfoMessage(const QString& msg)
 796 {
 797     m_statusBar->setMessage(msg, DolphinStatusBar::Information);
 798 }
 799
 800 void DolphinView::showErrorMessage(const QString& msg)
 801 {
 802     m_statusBar->setMessage(msg, DolphinStatusBar::Error);
 803 }
 804
 805 void DolphinView::emitSelectionChangedSignal()
 806 {
 807     emit selectionChanged();
 808 }
 809
 810 void DolphinView::closeFilterBar()
 811 {
 812     m_filterBar->hide();
 813     emit showFilterBarChanged(false);
 814 }
 815
 816 void DolphinView::startDirLister(const KUrl& url, bool reload)
 817 {
 818     if (!url.isValid()) {
 819         const QString location(url.pathOrUrl());
 820         if (location.isEmpty()) {
 821             m_statusBar->setMessage(i18n("The location is empty."), DolphinStatusBar::Error);
 822         }
 823         else {
 824             m_statusBar->setMessage(i18n("The location '%1' is invalid.",location),
 825                                     DolphinStatusBar::Error);
 826         }
 827         return;
 828     }
 829
 830     // Only show the directory loading progress if the status bar does
 831     // not contain another progress information. This means that
 832     // the directory loading progress information has the lowest priority.
 833     const QString progressText(m_statusBar->progressText());
 834     m_showProgress = progressText.isEmpty() ||
 835                      (progressText == i18n("Loading directory..."));
 836     if (m_showProgress) {
 837         m_statusBar->setProgressText(i18n("Loading directory..."));
 838         m_statusBar->setProgress(0);
 839     }
 840
 841     m_dirLister->stop();
 842     m_dirLister->openUrl(url, false, reload);
 843 }
 844
 845 QString DolphinView::defaultStatusBarText() const
 846 {
 847     return KIO::itemsSummaryString(m_fileCount + m_folderCount,
 848                                    m_fileCount,
 849                                    m_folderCount,
 850                                    0, false);
 851 }
 852
 853 QString DolphinView::selectionStatusBarText() const
 854 {
 855     QString text;
 856     const KFileItemList list = selectedItems();
 857     if (list.isEmpty()) {
 858         // when an item is triggered, it is temporary selected but selectedItems()
 859         // will return an empty list
 860         return QString();
 861     }
 862
 863     int fileCount = 0;
 864     int folderCount = 0;
 865     KIO::filesize_t byteSize = 0;
 866     KFileItemList::const_iterator it = list.begin();
 867     const KFileItemList::const_iterator end = list.end();
 868     while (it != end){
 869         KFileItem* item = *it;
 870         if (item->isDir()) {
 871             ++folderCount;
 872         }
 873         else {
 874             ++fileCount;
 875             byteSize += item->size();
 876         }
 877         ++it;
 878     }
 879
 880     if (folderCount > 0) {
 881         text = i18np("1 Folder selected", "%1 Folders selected", folderCount);
 882         if (fileCount > 0) {
 883             text += ", ";
 884         }
 885     }
 886
 887     if (fileCount > 0) {
 888         const QString sizeText(KIO::convertSize(byteSize));
 889         text += i18np("1 File selected (%2)", "%1 Files selected (%2)", fileCount, sizeText);
 890     }
 891
 892     return text;
 893 }
 894
 895 void DolphinView::showFilterBar(bool show)
 896 {
 897     assert(m_filterBar != 0);
 898     if (show) {
 899         m_filterBar->show();
 900     }
 901     else {
 902         m_filterBar->hide();
 903     }
 904 }
 905
 906 void DolphinView::updateStatusBar()
 907 {
 908     // As the item count information is less important
 909     // in comparison with other messages, it should only
 910     // be shown if:
 911     // - the status bar is empty or
 912     // - shows already the item count information or
 913     // - shows only a not very important information
 914     // - if any progress is given don't show the item count info at all
 915     const QString msg(m_statusBar->message());
 916     const bool updateStatusBarMsg = (msg.isEmpty() ||
 917                                      (msg == m_statusBar->defaultText()) ||
 918                                      (m_statusBar->type() == DolphinStatusBar::Information)) &&
 919                                     (m_statusBar->progress() == 100);
 920
 921     const QString text(hasSelection() ? selectionStatusBarText() : defaultStatusBarText());
 922     m_statusBar->setDefaultText(text);
 923
 924     if (updateStatusBarMsg) {
 925         m_statusBar->setMessage(text, DolphinStatusBar::Default);
 926     }
 927 }
 928
 929 void DolphinView::requestActivation()
 930 {
 931     m_mainWindow->setActiveView(this);
 932 }
 933
 934 void DolphinView::updateCutItems()
 935 {
 936     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 937     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
 938         return;
 939     }
 940
 941     KFileItemList items(m_dirLister->items());
 942     KFileItemList::const_iterator it = items.begin();
 943     const KFileItemList::const_iterator end = items.end();
 944     while (it != end) {
 945         KFileItem* item = *it;
 946         if (isCutItem(*item)) {
 947             QPixmap pixmap = item->pixmap(0);
 948             KIconEffect iconEffect;
 949             pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 950             const QModelIndex idx = m_dirModel->indexForItem(*item);
 951             if (idx.isValid()) {
 952                 m_dirModel->setData(idx, pixmap, Qt::DecorationRole);
 953             }
 954         }
 955         ++it;
 956     }
 957 }
 958
 959 void DolphinView::changeNameFilter(const QString& nameFilter)
 960 {
 961     // The name filter of KDirLister does a 'hard' filtering, which
 962     // means that only the items are shown where the names match
 963     // exactly the filter. This is non-transparent for the user, which
 964     // just wants to have a 'soft' filtering: does the name contain
 965     // the filter string?
 966     QString adjustedFilter(nameFilter);
 967     adjustedFilter.insert(0, '*');
 968     adjustedFilter.append('*');
 969
 970     // Use the ProxyModel to filter:
 971     // This code is #ifdefed as setNameFilter behaves
 972     // slightly different than the QSortFilterProxyModel
 973     // as it will not remove directories. I will ask
 974     // our beloved usability experts for input
 975     // -- z.
 976 #if 0
 977     m_dirLister->setNameFilter(adjustedFilter);
 978     m_dirLister->emitChanges();
 979 #else
 980     m_proxyModel->setFilterRegExp( nameFilter );
 981 #endif
 982 }
 983
 984 void DolphinView::openContextMenu(const QPoint& pos)
 985 {
 986     KFileItem* item = 0;
 987
 988     const QModelIndex index = itemView()->indexAt(pos);
 989     if (isValidNameIndex(index)) {
 990         item = fileItem(index);
 991     }
 992
 993     DolphinContextMenu contextMenu(this, item);
 994     contextMenu.open();
 995 }
 996
 997 void DolphinView::dropUrls(const KUrl::List& urls,
 998                            const QModelIndex& index,
 999                            QWidget* source)
1000 {
1001     KFileItem* directory = 0;
1002     if (isValidNameIndex(index)) {
1003         KFileItem* item = fileItem(index);
1004         assert(item != 0);
1005         if (item->isDir()) {
1006             // the URLs are dropped above a directory
1007             directory = item;
1008         }
1009     }
1010
1011     if ((directory == 0) && (source == itemView())) {
1012         // The dropping is done into the same viewport where
1013         // the dragging has been started. Just ignore this...
1014         return;
1015     }
1016
1017     const KUrl& destination = (directory == 0) ? url() :
1018                                                  directory->url();
1019
1020     kDebug() << "DolphinView::dropUrls() - destination: " << destination.prettyUrl() << endl;
1021
1022     dropUrls(urls, destination);
1023 }
1024
1025 void DolphinView::dropUrls(const KUrl::List& urls,
1026                            const KUrl& destination)
1027 {
1028     m_mainWindow->dropUrls(urls, destination);
1029 }
1030
1031
1032 void DolphinView::updateSorting(DolphinView::Sorting sorting)
1033 {
1034     ViewProperties props(url());
1035     props.setSorting(sorting);
1036
1037     m_proxyModel->setSorting(sorting);
1038
1039     emit sortingChanged(sorting);
1040 }
1041
1042 void DolphinView::updateSortOrder(Qt::SortOrder order)
1043 {
1044     ViewProperties props(url());
1045     props.setSortOrder(order);
1046
1047     m_proxyModel->setSortOrder(order);
1048
1049     emit sortOrderChanged(order);
1050 }
1051
1052 void DolphinView::emitContentsMoved()
1053 {
1054     emit contentsMoved(contentsX(), contentsY());
1055 }
1056
1057 void DolphinView::updateActivationState()
1058 {
1059     m_urlNavigator->setActive(isActive());
1060 }
1061
1062 void DolphinView::createView()
1063 {
1064     // delete current view
1065     QAbstractItemView* view = itemView();
1066     if (view != 0) {
1067         m_topLayout->removeWidget(view);
1068         view->close();
1069         view->deleteLater();
1070         m_iconsView = 0;
1071         m_detailsView = 0;
1072         m_fileItemDelegate = 0;
1073     }
1074
1075     assert(m_iconsView == 0);
1076     assert(m_detailsView == 0);
1077
1078     // ... and recreate it representing the current mode
1079     switch (m_mode) {
1080         case IconsView:
1081             m_iconsView = new DolphinIconsView(this, m_controller);
1082             view = m_iconsView;
1083             break;
1084
1085         case DetailsView:
1086             m_detailsView = new DolphinDetailsView(this, m_controller);
1087             view = m_detailsView;
1088             break;
1089     }
1090
1091
1092     m_fileItemDelegate = new KFileItemDelegate(view);
1093     view->setItemDelegate(m_fileItemDelegate);
1094
1095     view->setModel(m_proxyModel);
1096     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1097
1098     new KMimeTypeResolver(view, m_dirModel);
1099     m_topLayout->insertWidget(1, view);
1100
1101     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1102             m_controller, SLOT(indicateSelectionChange()));
1103     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1104             this, SLOT(emitContentsMoved()));
1105     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1106             this, SLOT(emitContentsMoved()));
1107 }
1108
1109 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
1110 {
1111     QItemSelectionModel* selectionModel = itemView()->selectionModel();
1112     const QAbstractItemModel* itemModel = selectionModel->model();
1113
1114     const QModelIndex topLeft = itemModel->index(0, 0);
1115     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
1116                                                      itemModel->columnCount() - 1);
1117
1118     QItemSelection selection(topLeft, bottomRight);
1119     selectionModel->select(selection, flags);
1120 }
1121
1122 QAbstractItemView* DolphinView::itemView() const
1123 {
1124     Q_ASSERT((m_iconsView == 0) || (m_detailsView == 0));
1125     if (m_detailsView != 0) {
1126         return m_detailsView;
1127     }
1128     return m_iconsView;
1129 }
1130
1131 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
1132 {
1133     return index.isValid() && (index.column() == KDirModel::Name);
1134 }
1135
1136 bool DolphinView::isCutItem(const KFileItem& item) const
1137 {
1138     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1139     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1140
1141     const KUrl& itemUrl = item.url();
1142     KUrl::List::const_iterator it = cutUrls.begin();
1143     const KUrl::List::const_iterator end = cutUrls.end();
1144     while (it != end){
1145         if (*it == itemUrl) {
1146             return true;
1147         }
1148         ++it;
1149     }
1150
1151     return false;
1152 }
1153
1154 #include "dolphinview.moc"