src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <QApplication>
  24 #include <QClipboard>
  25 #include <QDropEvent>
  26 #include <QItemSelectionModel>
  27 #include <QMouseEvent>
  28 #include <QVBoxLayout>
  29 #include <QTimer>
  30 #include <QScrollBar>
  31
  32 #include <kdirmodel.h>
  33 #include <kfileitemdelegate.h>
  34 #include <kfileplacesmodel.h>
  35 #include <klocale.h>
  36 #include <kiconeffect.h>
  37 #include <kio/netaccess.h>
  38 #include <kio/renamedialog.h>
  39 #include <kio/previewjob.h>
  40 #include <kmimetyperesolver.h>
  41 #include <konqmimedata.h>
  42 #include <konq_operations.h>
  43 #include <kurl.h>
  44
  45 #include "dolphincolumnview.h"
  46 #include "dolphincontroller.h"
  47 #include "dolphinstatusbar.h"
  48 #include "dolphinmainwindow.h"
  49 #include "dolphindirlister.h"
  50 #include "dolphinsortfilterproxymodel.h"
  51 #include "dolphindetailsview.h"
  52 #include "dolphiniconsview.h"
  53 #include "dolphincontextmenu.h"
  54 #include "filterbar.h"
  55 #include "renamedialog.h"
  56 #include "urlnavigator.h"
  57 #include "viewproperties.h"
  58 #include "dolphinsettings.h"
  59 #include "dolphin_generalsettings.h"
  60
  61 DolphinView::DolphinView(DolphinMainWindow* mainWindow,
  62                          QWidget* parent,
  63                          const KUrl& url,
  64                          Mode mode,
  65                          bool showHiddenFiles) :
  66     QWidget(parent),
  67     m_showProgress(false),
  68     m_blockContentsMovedSignal(false),
  69     m_mode(mode),
  70     m_iconSize(0),
  71     m_folderCount(0),
  72     m_fileCount(0),
  73     m_mainWindow(mainWindow),
  74     m_topLayout(0),
  75     m_urlNavigator(0),
  76     m_controller(0),
  77     m_iconsView(0),
  78     m_detailsView(0),
  79     m_columnView(0),
  80     m_fileItemDelegate(0),
  81     m_filterBar(0),
  82     m_statusBar(0),
  83     m_dirModel(0),
  84     m_dirLister(0),
  85     m_proxyModel(0)
  86 {
  87     hide();
  88     setFocusPolicy(Qt::StrongFocus);
  89     m_topLayout = new QVBoxLayout(this);
  90     m_topLayout->setSpacing(0);
  91     m_topLayout->setMargin(0);
  92
  93     connect(m_mainWindow, SIGNAL(activeViewChanged()),
  94             this, SLOT(updateActivationState()));
  95
  96     QClipboard* clipboard = QApplication::clipboard();
  97     connect(clipboard, SIGNAL(dataChanged()),
  98             this, SLOT(updateCutItems()));
  99
 100     m_urlNavigator = new UrlNavigator(new KFilePlacesModel(this), url, this);
 101     m_urlNavigator->setUrlEditable(DolphinSettings::instance().generalSettings()->editableUrl());
 102     m_urlNavigator->setHomeUrl(DolphinSettings::instance().generalSettings()->homeUrl());
 103     m_urlNavigator->setShowHiddenFiles(showHiddenFiles);
 104     connect(m_urlNavigator, SIGNAL(urlChanged(const KUrl&)),
 105             this, SLOT(loadDirectory(const KUrl&)));
 106     connect(m_urlNavigator, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&)),
 107             this, SLOT(dropUrls(const KUrl::List&, const KUrl&)));
 108     connect(m_urlNavigator, SIGNAL(activated()),
 109             this, SLOT(requestActivation()));
 110     connect(this, SIGNAL(contentsMoved(int, int)),
 111             m_urlNavigator, SLOT(storeContentsPosition(int, int)));
 112
 113     m_statusBar = new DolphinStatusBar(this);
 114
 115     m_dirLister = new DolphinDirLister();
 116     m_dirLister->setAutoUpdate(true);
 117     m_dirLister->setMainWindow(this);
 118     m_dirLister->setShowingDotFiles(showHiddenFiles);
 119     m_dirLister->setDelayedMimeTypes(true);
 120
 121     connect(m_dirLister, SIGNAL(clear()),
 122             this, SLOT(updateStatusBar()));
 123     connect(m_dirLister, SIGNAL(percent(int)),
 124             this, SLOT(updateProgress(int)));
 125     connect(m_dirLister, SIGNAL(deleteItem(KFileItem*)),
 126             this, SLOT(updateStatusBar()));
 127     connect(m_dirLister, SIGNAL(completed()),
 128             this, SLOT(updateItemCount()));
 129     connect(m_dirLister, SIGNAL(completed()),
 130             this, SLOT(updateCutItems()));
 131     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
 132             this, SLOT(generatePreviews(const KFileItemList&)));
 133     connect(m_dirLister, SIGNAL(infoMessage(const QString&)),
 134             this, SLOT(showInfoMessage(const QString&)));
 135     connect(m_dirLister, SIGNAL(errorMessage(const QString&)),
 136             this, SLOT(showErrorMessage(const QString&)));
 137
 138     m_dirModel = new KDirModel();
 139     m_dirModel->setDirLister(m_dirLister);
 140     m_dirModel->setDropsAllowed(KDirModel::DropOnDirectory);
 141
 142     m_proxyModel = new DolphinSortFilterProxyModel(this);
 143     m_proxyModel->setSourceModel(m_dirModel);
 144
 145     m_controller = new DolphinController(this);
 146     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 147             this, SLOT(openContextMenu(const QPoint&)));
 148     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const QModelIndex&, QWidget*)),
 149             this, SLOT(dropUrls(const KUrl::List&, const QModelIndex&, QWidget*)));
 150     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 151             this, SLOT(updateSorting(DolphinView::Sorting)));
 152     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 153             this, SLOT(updateSortOrder(Qt::SortOrder)));
 154     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 155             this, SLOT(triggerItem(const QModelIndex&)));
 156     connect(m_controller, SIGNAL(selectionChanged()),
 157             this, SLOT(emitSelectionChangedSignal()));
 158     connect(m_controller, SIGNAL(activated()),
 159             this, SLOT(requestActivation()));
 160
 161     createView();
 162
 163     m_iconSize = K3Icon::SizeMedium;
 164
 165     m_filterBar = new FilterBar(this);
 166     m_filterBar->hide();
 167     connect(m_filterBar, SIGNAL(filterChanged(const QString&)),
 168            this, SLOT(changeNameFilter(const QString&)));
 169     connect(m_filterBar, SIGNAL(closeRequest()),
 170             this, SLOT(closeFilterBar()));
 171
 172     m_topLayout->addWidget(m_urlNavigator);
 173     m_topLayout->addWidget(itemView());
 174     m_topLayout->addWidget(m_filterBar);
 175     m_topLayout->addWidget(m_statusBar);
 176 }
 177
 178 DolphinView::~DolphinView()
 179 {
 180     delete m_dirLister;
 181     m_dirLister = 0;
 182 }
 183
 184 void DolphinView::setUrl(const KUrl& url)
 185 {
 186     m_urlNavigator->setUrl(url);
 187     m_controller->setUrl(url);
 188 }
 189
 190 const KUrl& DolphinView::url() const
 191 {
 192     return m_urlNavigator->url();
 193 }
 194
 195 bool DolphinView::isActive() const
 196 {
 197     return m_mainWindow->activeView() == this;
 198 }
 199
 200 void DolphinView::setMode(Mode mode)
 201 {
 202     if (mode == m_mode) {
 203         return; // the wished mode is already set
 204     }
 205
 206     m_mode = mode;
 207
 208     ViewProperties props(m_urlNavigator->url());
 209     props.setViewMode(m_mode);
 210
 211     createView();
 212     startDirLister(m_urlNavigator->url());
 213
 214     emit modeChanged();
 215 }
 216
 217 DolphinView::Mode DolphinView::mode() const
 218 {
 219     return m_mode;
 220 }
 221
 222 void DolphinView::setShowPreview(bool show)
 223 {
 224     ViewProperties props(m_urlNavigator->url());
 225     props.setShowPreview(show);
 226
 227     m_controller->setShowPreview(show);
 228
 229     emit showPreviewChanged();
 230     reload();
 231 }
 232
 233 bool DolphinView::showPreview() const
 234 {
 235     return m_controller->showPreview();
 236 }
 237
 238 void DolphinView::setShowHiddenFiles(bool show)
 239 {
 240     if (m_dirLister->showingDotFiles() == show) {
 241         return;
 242     }
 243
 244     ViewProperties props(m_urlNavigator->url());
 245     props.setShowHiddenFiles(show);
 246     props.save();
 247
 248     m_dirLister->setShowingDotFiles(show);
 249     m_urlNavigator->setShowHiddenFiles(show);
 250
 251     emit showHiddenFilesChanged();
 252
 253     reload();
 254 }
 255
 256 bool DolphinView::showHiddenFiles() const
 257 {
 258     return m_dirLister->showingDotFiles();
 259 }
 260
 261 void DolphinView::renameSelectedItems()
 262 {
 263     DolphinView* view = mainWindow()->activeView();
 264     const KUrl::List urls = selectedUrls();
 265     if (urls.count() > 1) {
 266         // More than one item has been selected for renaming. Open
 267         // a rename dialog and rename all items afterwards.
 268         RenameDialog dialog(urls);
 269         if (dialog.exec() == QDialog::Rejected) {
 270             return;
 271         }
 272
 273         const QString& newName = dialog.newName();
 274         if (newName.isEmpty()) {
 275             view->statusBar()->setMessage(dialog.errorString(),
 276                                           DolphinStatusBar::Error);
 277         }
 278         else {
 279             // TODO: check how this can be integrated into KonqUndoManager/KonqOperations
 280             // as one operation instead of n rename operations like it is done now...
 281             Q_ASSERT(newName.contains('#'));
 282
 283             // iterate through all selected items and rename them...
 284             const int replaceIndex = newName.indexOf('#');
 285             Q_ASSERT(replaceIndex >= 0);
 286             int index = 1;
 287
 288             KUrl::List::const_iterator it = urls.begin();
 289             KUrl::List::const_iterator end = urls.end();
 290             while (it != end) {
 291                 const KUrl& oldUrl = *it;
 292                 QString number;
 293                 number.setNum(index++);
 294
 295                 QString name(newName);
 296                 name.replace(replaceIndex, 1, number);
 297
 298                 if (oldUrl.fileName() != name) {
 299                     KUrl newUrl = oldUrl;
 300                     newUrl.setFileName(name);
 301                     m_mainWindow->rename(oldUrl, newUrl);
 302                 }
 303                 ++it;
 304             }
 305         }
 306     }
 307     else {
 308         // Only one item has been selected for renaming. Use the custom
 309         // renaming mechanism from the views.
 310         Q_ASSERT(urls.count() == 1);
 311
 312         // TODO: Think about using KFileItemDelegate as soon as it supports editing.
 313         // Currently the RenameDialog is used, but I'm not sure whether inline renaming
 314         // is a benefit for the user at all -> let's wait for some input first...
 315         RenameDialog dialog(urls);
 316         if (dialog.exec() == QDialog::Rejected) {
 317             return;
 318         }
 319
 320         const QString& newName = dialog.newName();
 321         if (newName.isEmpty()) {
 322             view->statusBar()->setMessage(dialog.errorString(),
 323                                           DolphinStatusBar::Error);
 324         }
 325         else {
 326             const KUrl& oldUrl = urls.first();
 327             KUrl newUrl = oldUrl;
 328             newUrl.setFileName(newName);
 329             m_mainWindow->rename(oldUrl, newUrl);
 330         }
 331     }
 332 }
 333
 334 void DolphinView::selectAll()
 335 {
 336     selectAll(QItemSelectionModel::Select);
 337 }
 338
 339 void DolphinView::invertSelection()
 340 {
 341     selectAll(QItemSelectionModel::Toggle);
 342 }
 343
 344 DolphinStatusBar* DolphinView::statusBar() const
 345 {
 346     return m_statusBar;
 347 }
 348
 349 int DolphinView::contentsX() const
 350 {
 351     return itemView()->horizontalScrollBar()->value();
 352 }
 353
 354 int DolphinView::contentsY() const
 355 {
 356     return itemView()->verticalScrollBar()->value();
 357 }
 358
 359 void DolphinView::emitRequestItemInfo(const KUrl& url)
 360 {
 361     emit requestItemInfo(url);
 362 }
 363
 364 bool DolphinView::isFilterBarVisible() const
 365 {
 366   return m_filterBar->isVisible();
 367 }
 368
 369 bool DolphinView::isUrlEditable() const
 370 {
 371     return m_urlNavigator->isUrlEditable();
 372 }
 373
 374 void DolphinView::zoomIn()
 375 {
 376     m_controller->triggerZoomIn();
 377 }
 378
 379 void DolphinView::zoomOut()
 380 {
 381     m_controller->triggerZoomOut();
 382 }
 383
 384 bool DolphinView::isZoomInPossible() const
 385 {
 386     return m_controller->isZoomInPossible();
 387 }
 388
 389 bool DolphinView::isZoomOutPossible() const
 390 {
 391     return m_controller->isZoomOutPossible();
 392 }
 393
 394 void DolphinView::setSorting(Sorting sorting)
 395 {
 396     if (sorting != this->sorting()) {
 397         updateSorting(sorting);
 398     }
 399 }
 400
 401 DolphinView::Sorting DolphinView::sorting() const
 402 {
 403     return m_proxyModel->sorting();
 404 }
 405
 406 void DolphinView::setSortOrder(Qt::SortOrder order)
 407 {
 408     if (sortOrder() != order) {
 409         updateSortOrder(order);
 410     }
 411 }
 412
 413 Qt::SortOrder DolphinView::sortOrder() const
 414 {
 415     return m_proxyModel->sortOrder();
 416 }
 417
 418 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 419 {
 420     ViewProperties props(m_urlNavigator->url());
 421     props.setAdditionalInfo(info);
 422
 423     m_fileItemDelegate->setAdditionalInformation(info);
 424
 425     emit additionalInfoChanged(info);
 426     reload();
 427 }
 428
 429 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 430 {
 431     return m_fileItemDelegate->additionalInformation();
 432 }
 433
 434 void DolphinView::goBack()
 435 {
 436     m_urlNavigator->goBack();
 437 }
 438
 439 void DolphinView::goForward()
 440 {
 441     m_urlNavigator->goForward();
 442 }
 443
 444 void DolphinView::goUp()
 445 {
 446     m_urlNavigator->goUp();
 447 }
 448
 449 void DolphinView::goHome()
 450 {
 451     m_urlNavigator->goHome();
 452 }
 453
 454 void DolphinView::setUrlEditable(bool editable)
 455 {
 456     m_urlNavigator->setUrlEditable(editable);
 457 }
 458
 459 bool DolphinView::hasSelection() const
 460 {
 461     return itemView()->selectionModel()->hasSelection();
 462 }
 463
 464 void DolphinView::clearSelection()
 465 {
 466     itemView()->selectionModel()->clear();
 467 }
 468
 469 KFileItemList DolphinView::selectedItems() const
 470 {
 471     const QAbstractItemView* view = itemView();
 472
 473     // Our view has a selection, we will map them back to the DirModel
 474     // and then fill the KFileItemList.
 475     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 476
 477     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 478     KFileItemList itemList;
 479
 480     const QModelIndexList indexList = selection.indexes();
 481     QModelIndexList::const_iterator end = indexList.end();
 482     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 483         Q_ASSERT((*it).isValid());
 484
 485         KFileItem* item = m_dirModel->itemForIndex(*it);
 486         if (item != 0) {
 487             itemList.append(item);
 488         }
 489     }
 490
 491     return itemList;
 492 }
 493
 494 KUrl::List DolphinView::selectedUrls() const
 495 {
 496     KUrl::List urls;
 497
 498     const KFileItemList list = selectedItems();
 499     KFileItemList::const_iterator it = list.begin();
 500     const KFileItemList::const_iterator end = list.end();
 501     while (it != end) {
 502         KFileItem* item = *it;
 503         urls.append(item->url());
 504         ++it;
 505     }
 506
 507     return urls;
 508 }
 509
 510 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 511 {
 512     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 513     return m_dirModel->itemForIndex(dirModelIndex);
 514 }
 515
 516 void DolphinView::rename(const KUrl& source, const QString& newName)
 517 {
 518     bool ok = false;
 519
 520     if (newName.isEmpty() || (source.fileName() == newName)) {
 521         return;
 522     }
 523
 524     KUrl dest(source.upUrl());
 525     dest.addPath(newName);
 526
 527     const bool destExists = KIO::NetAccess::exists(dest,
 528                                                    false,
 529                                                    mainWindow()->activeView());
 530     if (destExists) {
 531         // the destination already exists, hence ask the user
 532         // how to proceed...
 533         KIO::RenameDialog renameDialog(this,
 534                                        i18n("File Already Exists"),
 535                                        source.path(),
 536                                        dest.path(),
 537                                        KIO::M_OVERWRITE);
 538         switch (renameDialog.exec()) {
 539             case KIO::R_OVERWRITE:
 540                 // the destination should be overwritten
 541                 ok = KIO::NetAccess::file_move(source, dest, -1, true);
 542                 break;
 543
 544             case KIO::R_RENAME: {
 545                 // a new name for the destination has been used
 546                 KUrl newDest(renameDialog.newDestUrl());
 547                 ok = KIO::NetAccess::file_move(source, newDest);
 548                 break;
 549             }
 550
 551             default:
 552                 // the renaming operation has been canceled
 553                 reload();
 554                 return;
 555         }
 556     }
 557     else {
 558         // no destination exists, hence just move the file to
 559         // do the renaming
 560         ok = KIO::NetAccess::file_move(source, dest);
 561     }
 562
 563     const QString destFileName = dest.fileName();
 564     if (ok) {
 565         m_statusBar->setMessage(i18n("Renamed file '%1' to '%2'.",source.fileName(), destFileName),
 566                                 DolphinStatusBar::OperationCompleted);
 567
 568         KonqOperations::rename(this, source, destFileName);
 569     }
 570     else {
 571         m_statusBar->setMessage(i18n("Renaming of file '%1' to '%2' failed.",source.fileName(), destFileName),
 572                                 DolphinStatusBar::Error);
 573         reload();
 574     }
 575 }
 576
 577 void DolphinView::reload()
 578 {
 579     startDirLister(m_urlNavigator->url(), true);
 580 }
 581
 582 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 583 {
 584     QWidget::mouseReleaseEvent(event);
 585     mainWindow()->setActiveView(this);
 586 }
 587
 588 DolphinMainWindow* DolphinView::mainWindow() const
 589 {
 590     return m_mainWindow;
 591 }
 592
 593 void DolphinView::loadDirectory(const KUrl& url)
 594 {
 595     if(!isActive()) {
 596         requestActivation();
 597     }
 598
 599     const ViewProperties props(url);
 600
 601     const Mode mode = props.viewMode();
 602     bool changeMode = (m_mode != mode);
 603     if (changeMode && isColumnViewActive()) {
 604         // The column view is active. Only change the
 605         // mode if the current URL is no child of the column view.
 606         if (m_dirLister->url().isParentOf(url)) {
 607             changeMode = false;
 608         }
 609     }
 610
 611     if (changeMode) {
 612         m_mode = mode;
 613         createView();
 614         emit modeChanged();
 615     }
 616
 617     const bool showHiddenFiles = props.showHiddenFiles();
 618     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 619         m_dirLister->setShowingDotFiles(showHiddenFiles);
 620         emit showHiddenFilesChanged();
 621     }
 622
 623     const DolphinView::Sorting sorting = props.sorting();
 624     if (sorting != m_proxyModel->sorting()) {
 625         m_proxyModel->setSorting(sorting);
 626         emit sortingChanged(sorting);
 627     }
 628
 629     const Qt::SortOrder sortOrder = props.sortOrder();
 630     if (sortOrder != m_proxyModel->sortOrder()) {
 631         m_proxyModel->setSortOrder(sortOrder);
 632         emit sortOrderChanged(sortOrder);
 633     }
 634
 635     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 636     if (info != m_fileItemDelegate->additionalInformation()) {
 637         m_fileItemDelegate->setAdditionalInformation(info);
 638
 639         emit additionalInfoChanged(info);
 640     }
 641
 642     const bool showPreview = props.showPreview();
 643     if (showPreview != m_controller->showPreview()) {
 644         m_controller->setShowPreview(showPreview);
 645         emit showPreviewChanged();
 646     }
 647
 648     startDirLister(url);
 649     emit urlChanged(url);
 650
 651     m_statusBar->clear();
 652 }
 653
 654 void DolphinView::triggerItem(const QModelIndex& index)
 655 {
 656     if (!isValidNameIndex(index)) {
 657         return;
 658     }
 659
 660     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 661     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 662         // items are selected by the user, hence don't trigger the
 663         // item specified by 'index'
 664         return;
 665     }
 666
 667     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 668     if (item == 0) {
 669         return;
 670     }
 671
 672     // Prefer the local path over the URL. This assures that the
 673     // volume space information is correct. Assuming that the URL is media:/sda1,
 674     // and the local path is /windows/C: For the URL the space info is related
 675     // to the root partition (and hence wrong) and for the local path the space
 676     // info is related to the windows partition (-> correct).
 677     const QString localPath(item->localPath());
 678     KUrl url;
 679     if (localPath.isEmpty()) {
 680         url = item->url();
 681     }
 682     else {
 683         url = localPath;
 684     }
 685
 686     if (item->isDir()) {
 687         setUrl(url);
 688     }
 689     else if (item->isFile()) {
 690         // allow to browse through ZIP and tar files
 691         KMimeType::Ptr mime = item->mimeTypePtr();
 692         if (mime->is("application/zip")) {
 693             url.setProtocol("zip");
 694             setUrl(url);
 695         }
 696         else if (mime->is("application/x-tar") ||
 697                  mime->is("application/x-tarz") ||
 698                  mime->is("application/x-bzip-compressed-tar") ||
 699                  mime->is("application/x-compressed-tar") ||
 700                  mime->is("application/x-tzo")) {
 701             url.setProtocol("tar");
 702             setUrl(url);
 703         }
 704         else {
 705             item->run();
 706         }
 707     }
 708     else {
 709         item->run();
 710     }
 711 }
 712
 713 void DolphinView::updateProgress(int percent)
 714 {
 715     if (m_showProgress) {
 716         m_statusBar->setProgress(percent);
 717     }
 718 }
 719
 720 void DolphinView::updateItemCount()
 721 {
 722     if (m_showProgress) {
 723         m_statusBar->setProgressText(QString());
 724         m_statusBar->setProgress(100);
 725         m_showProgress = false;
 726     }
 727
 728     KFileItemList items(m_dirLister->items());
 729     KFileItemList::const_iterator it = items.begin();
 730     const KFileItemList::const_iterator end = items.end();
 731
 732     m_fileCount = 0;
 733     m_folderCount = 0;
 734
 735     while (it != end) {
 736         KFileItem* item = *it;
 737         if (item->isDir()) {
 738             ++m_folderCount;
 739         }
 740         else {
 741             ++m_fileCount;
 742         }
 743         ++it;
 744     }
 745
 746     updateStatusBar();
 747
 748     m_blockContentsMovedSignal = false;
 749     QTimer::singleShot(0, this, SLOT(restoreContentsPos()));
 750 }
 751
 752 void DolphinView::generatePreviews(const KFileItemList& items)
 753 {
 754     if (m_controller->showPreview()) {
 755         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 756         connect(job, SIGNAL(gotPreview(const KFileItem*, const QPixmap&)),
 757                 this, SLOT(showPreview(const KFileItem*, const QPixmap&)));
 758     }
 759 }
 760
 761 void DolphinView::showPreview(const KFileItem* item, const QPixmap& pixmap)
 762 {
 763     Q_ASSERT(item != 0);
 764     const QModelIndex idx = m_dirModel->indexForItem(*item);
 765     if (idx.isValid() && (idx.column() == 0)) {
 766         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 767         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(*item)) {
 768             KIconEffect iconEffect;
 769             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 770             m_dirModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 771         }
 772         else {
 773             m_dirModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 774         }
 775     }
 776 }
 777
 778 void DolphinView::restoreContentsPos()
 779 {
 780     KUrl currentUrl = m_urlNavigator->url();
 781     if (!currentUrl.isEmpty()) {
 782         QAbstractItemView* view = itemView();
 783         // TODO: view->setCurrentItem(m_urlNavigator->currentFileName());
 784         QPoint pos = m_urlNavigator->savedPosition();
 785         view->horizontalScrollBar()->setValue(pos.x());
 786         view->verticalScrollBar()->setValue(pos.y());
 787     }
 788 }
 789
 790 void DolphinView::showInfoMessage(const QString& msg)
 791 {
 792     m_statusBar->setMessage(msg, DolphinStatusBar::Information);
 793 }
 794
 795 void DolphinView::showErrorMessage(const QString& msg)
 796 {
 797     m_statusBar->setMessage(msg, DolphinStatusBar::Error);
 798 }
 799
 800 void DolphinView::emitSelectionChangedSignal()
 801 {
 802     emit selectionChanged(DolphinView::selectedItems());
 803 }
 804
 805 void DolphinView::closeFilterBar()
 806 {
 807     m_filterBar->hide();
 808     emit showFilterBarChanged(false);
 809 }
 810
 811 void DolphinView::startDirLister(const KUrl& url, bool reload)
 812 {
 813     if (!url.isValid()) {
 814         const QString location(url.pathOrUrl());
 815         if (location.isEmpty()) {
 816             m_statusBar->setMessage(i18n("The location is empty."), DolphinStatusBar::Error);
 817         }
 818         else {
 819             m_statusBar->setMessage(i18n("The location '%1' is invalid.",location),
 820                                     DolphinStatusBar::Error);
 821         }
 822         return;
 823     }
 824
 825     // Only show the directory loading progress if the status bar does
 826     // not contain another progress information. This means that
 827     // the directory loading progress information has the lowest priority.
 828     const QString progressText(m_statusBar->progressText());
 829     m_showProgress = progressText.isEmpty() ||
 830                      (progressText == i18n("Loading directory..."));
 831     if (m_showProgress) {
 832         m_statusBar->setProgressText(i18n("Loading directory..."));
 833         m_statusBar->setProgress(0);
 834     }
 835
 836     m_cutItemsCache.clear();
 837     m_blockContentsMovedSignal = true;
 838     m_dirLister->stop();
 839
 840     bool openDir = true;
 841     bool keepOldDirs = isColumnViewActive();
 842     if (keepOldDirs) {
 843         if (reload) {
 844             keepOldDirs = false;
 845
 846             const KUrl& dirListerUrl = m_dirLister->url();
 847             if (dirListerUrl.isValid()) {
 848                 const KUrl::List dirs = m_dirLister->directories();
 849                 KUrl url;
 850                 foreach (url, dirs) {
 851                     m_dirLister->updateDirectory(url);
 852                 }
 853                 openDir = false;
 854             }
 855         }
 856         else if (m_dirLister->directories().contains(url)) {
 857             // The dir lister contains the directory already, so
 858             // KDirLister::openUrl() may not been invoked twice.
 859             m_dirLister->updateDirectory(url);
 860             openDir = false;
 861         }
 862         else {
 863             const KUrl& dirListerUrl = m_dirLister->url();
 864             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 865                 // The current URL is not a child of the dir lister
 866                 // URL. This may happen when e. g. a bookmark has been selected
 867                 // and hence the view must be reset.
 868                 keepOldDirs = false;
 869             }
 870         }
 871     }
 872
 873     if (openDir) {
 874         m_dirLister->openUrl(url, keepOldDirs, reload);
 875     }
 876 }
 877
 878 QString DolphinView::defaultStatusBarText() const
 879 {
 880     return KIO::itemsSummaryString(m_fileCount + m_folderCount,
 881                                    m_fileCount,
 882                                    m_folderCount,
 883                                    0, false);
 884 }
 885
 886 QString DolphinView::selectionStatusBarText() const
 887 {
 888     QString text;
 889     const KFileItemList list = selectedItems();
 890     if (list.isEmpty()) {
 891         // when an item is triggered, it is temporary selected but selectedItems()
 892         // will return an empty list
 893         return QString();
 894     }
 895
 896     int fileCount = 0;
 897     int folderCount = 0;
 898     KIO::filesize_t byteSize = 0;
 899     KFileItemList::const_iterator it = list.begin();
 900     const KFileItemList::const_iterator end = list.end();
 901     while (it != end){
 902         KFileItem* item = *it;
 903         if (item->isDir()) {
 904             ++folderCount;
 905         }
 906         else {
 907             ++fileCount;
 908             byteSize += item->size();
 909         }
 910         ++it;
 911     }
 912
 913     if (folderCount > 0) {
 914         text = i18np("1 Folder selected", "%1 Folders selected", folderCount);
 915         if (fileCount > 0) {
 916             text += ", ";
 917         }
 918     }
 919
 920     if (fileCount > 0) {
 921         const QString sizeText(KIO::convertSize(byteSize));
 922         text += i18np("1 File selected (%2)", "%1 Files selected (%2)", fileCount, sizeText);
 923     }
 924
 925     return text;
 926 }
 927
 928 void DolphinView::showFilterBar(bool show)
 929 {
 930     Q_ASSERT(m_filterBar != 0);
 931     if (show) {
 932         m_filterBar->show();
 933     }
 934     else {
 935         m_filterBar->hide();
 936     }
 937 }
 938
 939 void DolphinView::updateStatusBar()
 940 {
 941     // As the item count information is less important
 942     // in comparison with other messages, it should only
 943     // be shown if:
 944     // - the status bar is empty or
 945     // - shows already the item count information or
 946     // - shows only a not very important information
 947     // - if any progress is given don't show the item count info at all
 948     const QString msg(m_statusBar->message());
 949     const bool updateStatusBarMsg = (msg.isEmpty() ||
 950                                      (msg == m_statusBar->defaultText()) ||
 951                                      (m_statusBar->type() == DolphinStatusBar::Information)) &&
 952                                     (m_statusBar->progress() == 100);
 953
 954     const QString text(hasSelection() ? selectionStatusBarText() : defaultStatusBarText());
 955     m_statusBar->setDefaultText(text);
 956
 957     if (updateStatusBarMsg) {
 958         m_statusBar->setMessage(text, DolphinStatusBar::Default);
 959     }
 960 }
 961
 962 void DolphinView::requestActivation()
 963 {
 964     m_mainWindow->setActiveView(this);
 965 }
 966
 967 void DolphinView::changeSelection(const KFileItemList& selection)
 968 {
 969     clearSelection();
 970     if (selection.isEmpty()) {
 971         return;
 972     }
 973     KUrl baseUrl = url();
 974     KUrl url;
 975     QItemSelection new_selection;
 976     foreach (KFileItem* item, selection) {
 977         url = item->url().upUrl();
 978         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 979             QModelIndex index = m_proxyModel->mapFromSource(m_dirModel->indexForItem(*item));
 980             new_selection.select(index, index);
 981         }
 982     }
 983     itemView()->selectionModel()->select(new_selection,
 984                                          QItemSelectionModel::ClearAndSelect
 985                                          | QItemSelectionModel::Current);
 986 }
 987
 988 void DolphinView::changeNameFilter(const QString& nameFilter)
 989 {
 990     // The name filter of KDirLister does a 'hard' filtering, which
 991     // means that only the items are shown where the names match
 992     // exactly the filter. This is non-transparent for the user, which
 993     // just wants to have a 'soft' filtering: does the name contain
 994     // the filter string?
 995     QString adjustedFilter(nameFilter);
 996     adjustedFilter.insert(0, '*');
 997     adjustedFilter.append('*');
 998
 999     // Use the ProxyModel to filter:
1000     // This code is #ifdefed as setNameFilter behaves
1001     // slightly different than the QSortFilterProxyModel
1002     // as it will not remove directories. I will ask
1003     // our beloved usability experts for input
1004     // -- z.
1005 #if 0
1006     m_dirLister->setNameFilter(adjustedFilter);
1007     m_dirLister->emitChanges();
1008 #else
1009     m_proxyModel->setFilterRegExp( nameFilter );
1010 #endif
1011 }
1012
1013 void DolphinView::openContextMenu(const QPoint& pos)
1014 {
1015     KFileItem* item = 0;
1016
1017     const QModelIndex index = itemView()->indexAt(pos);
1018     if (isValidNameIndex(index)) {
1019         item = fileItem(index);
1020     }
1021
1022     DolphinContextMenu contextMenu(m_mainWindow, item, url());
1023     contextMenu.open();
1024 }
1025
1026 void DolphinView::dropUrls(const KUrl::List& urls,
1027                            const QModelIndex& index,
1028                            QWidget* source)
1029 {
1030     KFileItem* directory = 0;
1031     if (isValidNameIndex(index)) {
1032         KFileItem* item = fileItem(index);
1033         Q_ASSERT(item != 0);
1034         if (item->isDir()) {
1035             // the URLs are dropped above a directory
1036             directory = item;
1037         }
1038     }
1039
1040     if ((directory == 0) && (source == itemView())) {
1041         // The dropping is done into the same viewport where
1042         // the dragging has been started. Just ignore this...
1043         return;
1044     }
1045
1046     const KUrl& destination = (directory == 0) ? url() :
1047                                                  directory->url();
1048     dropUrls(urls, destination);
1049 }
1050
1051 void DolphinView::dropUrls(const KUrl::List& urls,
1052                            const KUrl& destination)
1053 {
1054     m_mainWindow->dropUrls(urls, destination);
1055 }
1056
1057 void DolphinView::updateSorting(DolphinView::Sorting sorting)
1058 {
1059     ViewProperties props(url());
1060     props.setSorting(sorting);
1061
1062     m_proxyModel->setSorting(sorting);
1063
1064     emit sortingChanged(sorting);
1065 }
1066
1067 void DolphinView::updateSortOrder(Qt::SortOrder order)
1068 {
1069     ViewProperties props(url());
1070     props.setSortOrder(order);
1071
1072     m_proxyModel->setSortOrder(order);
1073
1074     emit sortOrderChanged(order);
1075 }
1076
1077 void DolphinView::emitContentsMoved()
1078 {
1079     if (!m_blockContentsMovedSignal) {
1080         emit contentsMoved(contentsX(), contentsY());
1081     }
1082 }
1083
1084 void DolphinView::updateActivationState()
1085 {
1086     m_urlNavigator->setActive(isActive());
1087     if(isActive()) {
1088         emit urlChanged(url());
1089         emit selectionChanged(selectedItems());
1090     }
1091 }
1092
1093 void DolphinView::updateCutItems()
1094 {
1095     // restore the icons of all previously selected items to the
1096     // original state...
1097     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
1098     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
1099     while (it != end) {
1100         const QModelIndex index = m_dirModel->indexForUrl((*it).url);
1101         if (index.isValid()) {
1102             m_dirModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
1103         }
1104         ++it;
1105     }
1106     m_cutItemsCache.clear();
1107
1108     // ... and apply an item effect to all currently cut items
1109     applyCutItemEffect();
1110 }
1111
1112 void DolphinView::createView()
1113 {
1114     // delete current view
1115     QAbstractItemView* view = itemView();
1116     if (view != 0) {
1117         m_topLayout->removeWidget(view);
1118         view->close();
1119         view->deleteLater();
1120         view = 0;
1121         m_iconsView = 0;
1122         m_detailsView = 0;
1123         m_columnView = 0;
1124         m_fileItemDelegate = 0;
1125     }
1126
1127     Q_ASSERT(m_iconsView == 0);
1128     Q_ASSERT(m_detailsView == 0);
1129     Q_ASSERT(m_columnView == 0);
1130
1131     // ... and recreate it representing the current mode
1132     switch (m_mode) {
1133         case IconsView:
1134             m_iconsView = new DolphinIconsView(this, m_controller);
1135             view = m_iconsView;
1136             break;
1137
1138         case DetailsView:
1139             m_detailsView = new DolphinDetailsView(this, m_controller);
1140             view = m_detailsView;
1141             break;
1142
1143         case ColumnView:
1144             m_columnView = new DolphinColumnView(this, m_controller);
1145             view = m_columnView;
1146             break;
1147     }
1148
1149     Q_ASSERT(view != 0);
1150
1151     m_fileItemDelegate = new KFileItemDelegate(view);
1152     view->setItemDelegate(m_fileItemDelegate);
1153
1154     view->setModel(m_proxyModel);
1155     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1156
1157     new KMimeTypeResolver(view, m_dirModel);
1158     m_topLayout->insertWidget(1, view);
1159
1160     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1161             m_controller, SLOT(indicateSelectionChange()));
1162     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1163             this, SLOT(emitContentsMoved()));
1164     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1165             this, SLOT(emitContentsMoved()));
1166 }
1167
1168 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
1169 {
1170     QItemSelectionModel* selectionModel = itemView()->selectionModel();
1171     const QAbstractItemModel* itemModel = selectionModel->model();
1172
1173     const QModelIndex topLeft = itemModel->index(0, 0);
1174     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
1175                                                      itemModel->columnCount() - 1);
1176
1177     QItemSelection selection(topLeft, bottomRight);
1178     selectionModel->select(selection, flags);
1179 }
1180
1181 QAbstractItemView* DolphinView::itemView() const
1182 {
1183     if (m_detailsView != 0) {
1184         return m_detailsView;
1185     }
1186     else if (m_columnView != 0) {
1187         return m_columnView;
1188     }
1189
1190     return m_iconsView;
1191 }
1192
1193 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
1194 {
1195     return index.isValid() && (index.column() == KDirModel::Name);
1196 }
1197
1198 bool DolphinView::isCutItem(const KFileItem& item) const
1199 {
1200     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1201     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1202
1203     const KUrl& itemUrl = item.url();
1204     KUrl::List::const_iterator it = cutUrls.begin();
1205     const KUrl::List::const_iterator end = cutUrls.end();
1206     while (it != end){
1207         if (*it == itemUrl) {
1208             return true;
1209         }
1210         ++it;
1211     }
1212
1213     return false;
1214 }
1215
1216 void DolphinView::applyCutItemEffect()
1217 {
1218     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1219     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
1220         return;
1221     }
1222
1223     KFileItemList items(m_dirLister->items());
1224     KFileItemList::const_iterator it = items.begin();
1225     const KFileItemList::const_iterator end = items.end();
1226     while (it != end) {
1227         KFileItem* item = *it;
1228         if (isCutItem(*item)) {
1229             const QModelIndex index = m_dirModel->indexForItem(*item);
1230             const KFileItem* item = m_dirModel->itemForIndex(index);
1231             const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
1232             if ((value.type() == QVariant::Icon) && (item != 0)) {
1233                 const QIcon icon(qvariant_cast<QIcon>(value));
1234                 QPixmap pixmap = icon.pixmap(128, 128);
1235
1236                 // remember current pixmap for the item to be able
1237                 // to restore it when other items get cut
1238                 CutItem cutItem;
1239                 cutItem.url = item->url();
1240                 cutItem.pixmap = pixmap;
1241                 m_cutItemsCache.append(cutItem);
1242
1243                 // apply icon effect to the cut item
1244                 KIconEffect iconEffect;
1245                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
1246                 m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
1247             }
1248         }
1249         ++it;
1250     }
1251 }
1252
1253 #include "dolphinview.moc"