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