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