src/dolphinview.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
   3  *   Copyright (C) 2006 by Gregor Kališnik <gregor@podnapisi.net>          *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  19  ***************************************************************************/
  20
  21 #include "dolphinview.h"
  22
  23 #include <assert.h>
  24
  25 #include <QApplication>
  26 #include <QDropEvent>
  27 #include <QItemSelectionModel>
  28 #include <QMouseEvent>
  29 #include <QVBoxLayout>
  30
  31 #include <kdirmodel.h>
  32 #include <kfileitemdelegate.h>
  33 #include <klocale.h>
  34 #include <kio/netaccess.h>
  35 #include <kio/renamedialog.h>
  36 #include <kmimetyperesolver.h>
  37 #include <konq_operations.h>
  38 #include <kurl.h>
  39
  40 #include "dolphincontroller.h"
  41 #include "dolphinstatusbar.h"
  42 #include "dolphinmainwindow.h"
  43 #include "dolphindirlister.h"
  44 #include "dolphinsortfilterproxymodel.h"
  45 #include "dolphindetailsview.h"
  46 #include "dolphiniconsview.h"
  47 #include "dolphincontextmenu.h"
  48 #include "filterbar.h"
  49 #include "renamedialog.h"
  50 #include "urlnavigator.h"
  51 #include "viewproperties.h"
  52
  53 DolphinView::DolphinView(DolphinMainWindow* mainWindow,
  54                          QWidget* parent,
  55                          const KUrl& url,
  56                          Mode mode,
  57                          bool showHiddenFiles) :
  58     QWidget(parent),
  59     m_showProgress(false),
  60     m_mode(mode),
  61     m_iconSize(0),
  62     m_folderCount(0),
  63     m_fileCount(0),
  64     m_mainWindow(mainWindow),
  65     m_topLayout(0),
  66     m_urlNavigator(0),
  67     m_controller(0),
  68     m_iconsView(0),
  69     m_detailsView(0),
  70     m_filterBar(0),
  71     m_statusBar(0),
  72     m_dirModel(0),
  73     m_dirLister(0),
  74     m_proxyModel(0)
  75 {
  76     hide();
  77     setFocusPolicy(Qt::StrongFocus);
  78     m_topLayout = new QVBoxLayout(this);
  79     m_topLayout->setSpacing(0);
  80     m_topLayout->setMargin(0);
  81
  82     connect(m_mainWindow, SIGNAL(activeViewChanged()),
  83             this, SLOT(updateActivationState()));
  84
  85     m_urlNavigator = new UrlNavigator(url, this);
  86     connect(m_urlNavigator, SIGNAL(urlChanged(const KUrl&)),
  87             this, SLOT(loadDirectory(const KUrl&)));
  88     connect(m_urlNavigator, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&)),
  89             this, SLOT(dropUrls(const KUrl::List&, const KUrl&)));
  90     connect(m_urlNavigator, SIGNAL(activated()),
  91             this, SLOT(requestActivation()));
  92     connect(this, SIGNAL(contentsMoved(int, int)),
  93             m_urlNavigator, SLOT(storeContentsPosition(int, int)));
  94
  95     m_statusBar = new DolphinStatusBar(this);
  96
  97     m_dirLister = new DolphinDirLister();
  98     m_dirLister->setAutoUpdate(true);
  99     m_dirLister->setMainWindow(this);
 100     m_dirLister->setShowingDotFiles(showHiddenFiles);
 101     m_dirLister->setDelayedMimeTypes(true);
 102
 103     connect(m_dirLister, SIGNAL(clear()),
 104             this, SLOT(updateStatusBar()));
 105     connect(m_dirLister, SIGNAL(percent(int)),
 106             this, SLOT(updateProgress(int)));
 107     connect(m_dirLister, SIGNAL(deleteItem(KFileItem*)),
 108             this, SLOT(updateStatusBar()));
 109     connect(m_dirLister, SIGNAL(completed()),
 110             this, SLOT(updateItemCount()));
 111     connect(m_dirLister, SIGNAL(infoMessage(const QString&)),
 112             this, SLOT(showInfoMessage(const QString&)));
 113     connect(m_dirLister, SIGNAL(errorMessage(const QString&)),
 114             this, SLOT(showErrorMessage(const QString&)));
 115
 116     m_dirModel = new KDirModel();
 117     m_dirModel->setDirLister(m_dirLister);
 118     m_dirModel->setDropsAllowed(KDirModel::DropOnDirectory);
 119
 120     m_proxyModel = new DolphinSortFilterProxyModel(this);
 121     m_proxyModel->setSourceModel(m_dirModel);
 122
 123     m_controller = new DolphinController(this);
 124     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 125             this, SLOT(openContextMenu(const QPoint&)));
 126     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const QPoint&)),
 127             this, SLOT(dropUrls(const KUrl::List&, const QPoint&)));
 128     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 129             this, SLOT(updateSorting(DolphinView::Sorting)));
 130     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 131             this, SLOT(updateSortOrder(Qt::SortOrder)));
 132     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 133             this, SLOT(triggerItem(const QModelIndex&)));
 134     connect(m_controller, SIGNAL(selectionChanged()),
 135             this, SLOT(emitSelectionChangedSignal()));
 136     connect(m_controller, SIGNAL(activated()),
 137             this, SLOT(requestActivation()));
 138
 139     createView();
 140
 141     m_iconSize = K3Icon::SizeMedium;
 142
 143     m_filterBar = new FilterBar(this);
 144     m_filterBar->hide();
 145     connect(m_filterBar, SIGNAL(filterChanged(const QString&)),
 146            this, SLOT(changeNameFilter(const QString&)));
 147     connect(m_filterBar, SIGNAL(closeRequest()),
 148             this, SLOT(closeFilterBar()));
 149
 150     m_topLayout->addWidget(m_urlNavigator);
 151     m_topLayout->addWidget(itemView());
 152     m_topLayout->addWidget(m_filterBar);
 153     m_topLayout->addWidget(m_statusBar);
 154
 155     loadDirectory(m_urlNavigator->url());
 156 }
 157
 158 DolphinView::~DolphinView()
 159 {
 160     delete m_dirLister;
 161     m_dirLister = 0;
 162 }
 163
 164 void DolphinView::setUrl(const KUrl& url)
 165 {
 166     m_urlNavigator->setUrl(url);
 167     m_controller->setUrl(url);
 168 }
 169
 170 const KUrl& DolphinView::url() const
 171 {
 172     return m_urlNavigator->url();
 173 }
 174
 175 bool DolphinView::isActive() const
 176 {
 177     return m_mainWindow->activeView() == this;
 178 }
 179
 180 void DolphinView::setMode(Mode mode)
 181 {
 182     if (mode == m_mode) {
 183         return; // the wished mode is already set
 184     }
 185
 186     m_mode = mode;
 187
 188     ViewProperties props(m_urlNavigator->url());
 189     props.setViewMode(m_mode);
 190
 191     createView();
 192     startDirLister(m_urlNavigator->url());
 193
 194     emit modeChanged();
 195 }
 196
 197 DolphinView::Mode DolphinView::mode() const
 198 {
 199     return m_mode;
 200 }
 201
 202 void DolphinView::setShowPreview(bool show)
 203 {
 204     ViewProperties props(m_urlNavigator->url());
 205     props.setShowPreview(show);
 206
 207     // TODO: wait until previews are possible with KFileItemDelegate
 208
 209     emit showPreviewChanged();
 210 }
 211
 212 bool DolphinView::showPreview() const
 213 {
 214     // TODO: wait until previews are possible with KFileItemDelegate
 215     return true;
 216 }
 217
 218 void DolphinView::setShowHiddenFiles(bool show)
 219 {
 220     if (m_dirLister->showingDotFiles() == show) {
 221         return;
 222     }
 223
 224     ViewProperties props(m_urlNavigator->url());
 225     props.setShowHiddenFiles(show);
 226     props.save();
 227
 228     m_dirLister->setShowingDotFiles(show);
 229
 230     emit showHiddenFilesChanged();
 231
 232     reload();
 233 }
 234
 235 bool DolphinView::showHiddenFiles() const
 236 {
 237     return m_dirLister->showingDotFiles();
 238 }
 239
 240 void DolphinView::renameSelectedItems()
 241 {
 242     const KUrl::List urls = selectedUrls();
 243     if (urls.count() > 1) {
 244         // More than one item has been selected for renaming. Open
 245         // a rename dialog and rename all items afterwards.
 246         RenameDialog dialog(urls);
 247         if (dialog.exec() == QDialog::Rejected) {
 248             return;
 249         }
 250
 251         DolphinView* view = mainWindow()->activeView();
 252         const QString& newName = dialog.newName();
 253         if (newName.isEmpty()) {
 254             view->statusBar()->setMessage(i18n("The new item name is invalid."),
 255                                           DolphinStatusBar::Error);
 256         }
 257         else {
 258             // TODO: check how this can be integrated into KonqUndoManager/KonqOperations
 259
 260             //UndoManager& undoMan = UndoManager::instance();
 261             //undoMan.beginMacro();
 262
 263             assert(newName.contains('#'));
 264
 265             const int urlsCount = urls.count();
 266
 267             // iterate through all selected items and rename them...
 268             const int replaceIndex = newName.indexOf('#');
 269             assert(replaceIndex >= 0);
 270             for (int i = 0; i < urlsCount; ++i) {
 271                 const KUrl& source = urls[i];
 272                 QString number;
 273                 number.setNum(i + 1);
 274
 275                 QString name(newName);
 276                 name.replace(replaceIndex, 1, number);
 277
 278                 if (source.fileName() != name) {
 279                     KUrl dest(source.upUrl());
 280                     dest.addPath(name);
 281
 282                     const bool destExists = KIO::NetAccess::exists(dest, false, view);
 283                     if (destExists) {
 284                         view->statusBar()->setMessage(i18n("Renaming failed (item '%1' already exists).",name),
 285                                                       DolphinStatusBar::Error);
 286                         break;
 287                     }
 288                     else if (KIO::NetAccess::file_move(source, dest)) {
 289                         // TODO: From the users point of view he executed one 'rename n files' operation,
 290                         // but internally we store it as n 'rename 1 file' operations for the undo mechanism.
 291                         //DolphinCommand command(DolphinCommand::Rename, source, dest);
 292                         //undoMan.addCommand(command);
 293                     }
 294                 }
 295             }
 296
 297             //undoMan.endMacro();
 298         }
 299     }
 300     else {
 301         // Only one item has been selected for renaming. Use the custom
 302         // renaming mechanism from the views.
 303         assert(urls.count() == 1);
 304         // TODO:
 305         /*if (m_mode == DetailsView) {
 306             Q3ListViewItem* item = m_iconsView->firstChild();
 307             while (item != 0) {
 308                 if (item->isSelected()) {
 309                     m_iconsView->rename(item, DolphinDetailsView::NameColumn);
 310                     break;
 311                 }
 312                 item = item->nextSibling();
 313             }
 314         }
 315         else {
 316             KFileIconViewItem* item = static_cast<KFileIconViewItem*>(m_iconsView->firstItem());
 317             while (item != 0) {
 318                 if (item->isSelected()) {
 319                     item->rename();
 320                     break;
 321                 }
 322                 item = static_cast<KFileIconViewItem*>(item->nextItem());
 323             }
 324         }*/
 325     }
 326 }
 327
 328 void DolphinView::selectAll()
 329 {
 330     selectAll(QItemSelectionModel::Select);
 331 }
 332
 333 void DolphinView::invertSelection()
 334 {
 335     selectAll(QItemSelectionModel::Toggle);
 336 }
 337
 338 DolphinStatusBar* DolphinView::statusBar() const
 339 {
 340     return m_statusBar;
 341 }
 342
 343 int DolphinView::contentsX() const
 344 {
 345
 346     return itemView()->horizontalScrollBar()->value();
 347 }
 348
 349 int DolphinView::contentsY() const
 350 {
 351     return itemView()->verticalScrollBar()->value();
 352 }
 353
 354 void DolphinView::refreshSettings()
 355 {
 356     startDirLister(m_urlNavigator->url());
 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     //itemEffectsManager()->zoomIn();
 377 }
 378
 379 void DolphinView::zoomOut()
 380 {
 381     //itemEffectsManager()->zoomOut();
 382 }
 383
 384 bool DolphinView::isZoomInPossible() const
 385 {
 386     return false; //itemEffectsManager()->isZoomInPossible();
 387 }
 388
 389 bool DolphinView::isZoomOutPossible() const
 390 {
 391     return false; //itemEffectsManager()->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::goBack()
 419 {
 420     m_urlNavigator->goBack();
 421 }
 422
 423 void DolphinView::goForward()
 424 {
 425     m_urlNavigator->goForward();
 426 }
 427
 428 void DolphinView::goUp()
 429 {
 430     m_urlNavigator->goUp();
 431 }
 432
 433 void DolphinView::goHome()
 434 {
 435     m_urlNavigator->goHome();
 436 }
 437
 438 void DolphinView::setUrlEditable(bool editable)
 439 {
 440     m_urlNavigator->editUrl(editable);
 441 }
 442
 443 const QLinkedList<UrlNavigator::HistoryElem> DolphinView::urlHistory(int& index) const
 444 {
 445     return m_urlNavigator->history(index);
 446 }
 447
 448 bool DolphinView::hasSelection() const
 449 {
 450     return itemView()->selectionModel()->hasSelection();
 451 }
 452
 453 KFileItemList DolphinView::selectedItems() const
 454 {
 455     const QAbstractItemView* view = itemView();
 456
 457     // Our view has a selection, we will map them back to the DirModel
 458     // and then fill the KFileItemList.
 459     assert((view != 0) && (view->selectionModel() != 0));
 460
 461     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 462     KFileItemList itemList;
 463
 464     const QModelIndexList indexList = selection.indexes();
 465     QModelIndexList::const_iterator end = indexList.end();
 466     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 467         assert((*it).isValid());
 468
 469         KFileItem* item = m_dirModel->itemForIndex(*it);
 470         if (item != 0) {
 471             itemList.append(item);
 472         }
 473     }
 474
 475     return itemList;
 476 }
 477
 478 KUrl::List DolphinView::selectedUrls() const
 479 {
 480     KUrl::List urls;
 481
 482     const KFileItemList list = selectedItems();
 483     KFileItemList::const_iterator it = list.begin();
 484     const KFileItemList::const_iterator end = list.end();
 485     while (it != end) {
 486         KFileItem* item = *it;
 487         urls.append(item->url());
 488         ++it;
 489     }
 490
 491     return urls;
 492 }
 493
 494 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 495 {
 496     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 497     return m_dirModel->itemForIndex(dirModelIndex);
 498 }
 499
 500 void DolphinView::rename(const KUrl& source, const QString& newName)
 501 {
 502     bool ok = false;
 503
 504     if (newName.isEmpty() || (source.fileName() == newName)) {
 505         return;
 506     }
 507
 508     KUrl dest(source.upUrl());
 509     dest.addPath(newName);
 510
 511     const bool destExists = KIO::NetAccess::exists(dest,
 512                                                    false,
 513                                                    mainWindow()->activeView());
 514     if (destExists) {
 515         // the destination already exists, hence ask the user
 516         // how to proceed...
 517         KIO::RenameDialog renameDialog(this,
 518                                        i18n("File Already Exists"),
 519                                        source.path(),
 520                                        dest.path(),
 521                                        KIO::M_OVERWRITE);
 522         switch (renameDialog.exec()) {
 523             case KIO::R_OVERWRITE:
 524                 // the destination should be overwritten
 525                 ok = KIO::NetAccess::file_move(source, dest, -1, true);
 526                 break;
 527
 528             case KIO::R_RENAME: {
 529                 // a new name for the destination has been used
 530                 KUrl newDest(renameDialog.newDestUrl());
 531                 ok = KIO::NetAccess::file_move(source, newDest);
 532                 break;
 533             }
 534
 535             default:
 536                 // the renaming operation has been canceled
 537                 reload();
 538                 return;
 539         }
 540     }
 541     else {
 542         // no destination exists, hence just move the file to
 543         // do the renaming
 544         ok = KIO::NetAccess::file_move(source, dest);
 545     }
 546
 547     const QString destFileName = dest.fileName();
 548     if (ok) {
 549         m_statusBar->setMessage(i18n("Renamed file '%1' to '%2'.",source.fileName(), destFileName),
 550                                 DolphinStatusBar::OperationCompleted);
 551
 552         KonqOperations::rename(this, source, destFileName);
 553     }
 554     else {
 555         m_statusBar->setMessage(i18n("Renaming of file '%1' to '%2' failed.",source.fileName(), destFileName),
 556                                 DolphinStatusBar::Error);
 557         reload();
 558     }
 559 }
 560
 561 void DolphinView::reload()
 562 {
 563     startDirLister(m_urlNavigator->url(), true);
 564 }
 565
 566 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 567 {
 568     QWidget::mouseReleaseEvent(event);
 569     mainWindow()->setActiveView(this);
 570 }
 571
 572 DolphinMainWindow* DolphinView::mainWindow() const
 573 {
 574     return m_mainWindow;
 575 }
 576
 577 void DolphinView::loadDirectory(const KUrl& url)
 578 {
 579     const ViewProperties props(url);
 580
 581     const Mode mode = props.viewMode();
 582     if (m_mode != mode) {
 583         m_mode = mode;
 584         createView();
 585         emit modeChanged();
 586     }
 587
 588     const bool showHiddenFiles = props.showHiddenFiles();
 589     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 590         m_dirLister->setShowingDotFiles(showHiddenFiles);
 591         emit showHiddenFilesChanged();
 592     }
 593
 594     const DolphinView::Sorting sorting = props.sorting();
 595     if (sorting != m_proxyModel->sorting()) {
 596         m_proxyModel->setSorting(sorting);
 597         emit sortingChanged(sorting);
 598     }
 599
 600     const Qt::SortOrder sortOrder = props.sortOrder();
 601     if (sortOrder != m_proxyModel->sortOrder()) {
 602         m_proxyModel->setSortOrder(sortOrder);
 603         emit sortOrderChanged(sortOrder);
 604     }
 605
 606     // TODO: handle previews (props.showPreview())
 607
 608     startDirLister(url);
 609     emit urlChanged(url);
 610
 611     m_statusBar->clear();
 612 }
 613
 614 void DolphinView::triggerItem(const QModelIndex& index)
 615 {
 616     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 617     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 618         // items are selected by the user, hence don't trigger the
 619         // item specified by 'index'
 620         return;
 621     }
 622
 623     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 624     if (item == 0) {
 625         return;
 626     }
 627
 628     if (item->isDir()) {
 629         // Prefer the local path over the URL. This assures that the
 630         // volume space information is correct. Assuming that the URL is media:/sda1,
 631         // and the local path is /windows/C: For the URL the space info is related
 632         // to the root partition (and hence wrong) and for the local path the space
 633         // info is related to the windows partition (-> correct).
 634         const QString localPath(item->localPath());
 635         if (localPath.isEmpty()) {
 636             setUrl(item->url());
 637         }
 638         else {
 639             setUrl(KUrl(localPath));
 640         }
 641     }
 642     else {
 643         item->run();
 644     }
 645 }
 646
 647 void DolphinView::updateProgress(int percent)
 648 {
 649     if (m_showProgress) {
 650         m_statusBar->setProgress(percent);
 651     }
 652 }
 653
 654 void DolphinView::updateItemCount()
 655 {
 656     if (m_showProgress) {
 657         m_statusBar->setProgressText(QString());
 658         m_statusBar->setProgress(100);
 659         m_showProgress = false;
 660     }
 661
 662     KFileItemList items(m_dirLister->items());
 663     KFileItemList::const_iterator it = items.begin();
 664     const KFileItemList::const_iterator end = items.end();
 665
 666     m_fileCount = 0;
 667     m_folderCount = 0;
 668
 669     while (it != end) {
 670         KFileItem* item = *it;
 671         if (item->isDir()) {
 672             ++m_folderCount;
 673         }
 674         else {
 675             ++m_fileCount;
 676         }
 677         ++it;
 678     }
 679
 680     updateStatusBar();
 681
 682     QTimer::singleShot(0, this, SLOT(restoreContentsPos()));
 683 }
 684
 685 void DolphinView::restoreContentsPos()
 686 {
 687     int index = 0;
 688     const QLinkedList<UrlNavigator::HistoryElem> history = urlHistory(index);
 689     if (!history.isEmpty()) {
 690         QAbstractItemView* view = itemView();
 691         // TODO: view->setCurrentItem(history[index].currentFileName());
 692
 693         QLinkedList<UrlNavigator::HistoryElem>::const_iterator it = history.begin();
 694         it += index;
 695         view->horizontalScrollBar()->setValue((*it).contentsX());
 696         view->verticalScrollBar()->setValue((*it).contentsY());
 697     }
 698 }
 699
 700 void DolphinView::showInfoMessage(const QString& msg)
 701 {
 702     m_statusBar->setMessage(msg, DolphinStatusBar::Information);
 703 }
 704
 705 void DolphinView::showErrorMessage(const QString& msg)
 706 {
 707     m_statusBar->setMessage(msg, DolphinStatusBar::Error);
 708 }
 709
 710 void DolphinView::emitSelectionChangedSignal()
 711 {
 712     emit selectionChanged();
 713 }
 714
 715 void DolphinView::closeFilterBar()
 716 {
 717     m_filterBar->hide();
 718     emit showFilterBarChanged(false);
 719 }
 720
 721 void DolphinView::startDirLister(const KUrl& url, bool reload)
 722 {
 723     if (!url.isValid()) {
 724         const QString location(url.pathOrUrl());
 725         if (location.isEmpty()) {
 726             m_statusBar->setMessage(i18n("The location is empty."), DolphinStatusBar::Error);
 727         }
 728         else {
 729             m_statusBar->setMessage(i18n("The location '%1' is invalid.",location),
 730                                     DolphinStatusBar::Error);
 731         }
 732         return;
 733     }
 734
 735     // Only show the directory loading progress if the status bar does
 736     // not contain another progress information. This means that
 737     // the directory loading progress information has the lowest priority.
 738     const QString progressText(m_statusBar->progressText());
 739     m_showProgress = progressText.isEmpty() ||
 740                      (progressText == i18n("Loading directory..."));
 741     if (m_showProgress) {
 742         m_statusBar->setProgressText(i18n("Loading directory..."));
 743         m_statusBar->setProgress(0);
 744     }
 745
 746     m_dirLister->stop();
 747     m_dirLister->openUrl(url, false, reload);
 748 }
 749
 750 QString DolphinView::defaultStatusBarText() const
 751 {
 752     return KIO::itemsSummaryString(m_fileCount + m_folderCount,
 753                                    m_fileCount,
 754                                    m_folderCount,
 755                                    0, false);
 756 }
 757
 758 QString DolphinView::selectionStatusBarText() const
 759 {
 760     QString text;
 761     const KFileItemList list = selectedItems();
 762     if (list.isEmpty()) {
 763         // when an item is triggered, it is temporary selected but selectedItems()
 764         // will return an empty list
 765         return QString();
 766     }
 767
 768     int fileCount = 0;
 769     int folderCount = 0;
 770     KIO::filesize_t byteSize = 0;
 771     KFileItemList::const_iterator it = list.begin();
 772     const KFileItemList::const_iterator end = list.end();
 773     while (it != end){
 774         KFileItem* item = *it;
 775         if (item->isDir()) {
 776             ++folderCount;
 777         }
 778         else {
 779             ++fileCount;
 780             byteSize += item->size();
 781         }
 782         ++it;
 783     }
 784
 785     if (folderCount > 0) {
 786         text = i18np("1 Folder selected", "%1 Folders selected", folderCount);
 787         if (fileCount > 0) {
 788             text += ", ";
 789         }
 790     }
 791
 792     if (fileCount > 0) {
 793         const QString sizeText(KIO::convertSize(byteSize));
 794         text += i18np("1 File selected (%2)", "%1 Files selected (%2)", fileCount, sizeText);
 795     }
 796
 797     return text;
 798 }
 799
 800 void DolphinView::showFilterBar(bool show)
 801 {
 802     assert(m_filterBar != 0);
 803     if (show) {
 804         m_filterBar->show();
 805     }
 806     else {
 807         m_filterBar->hide();
 808     }
 809 }
 810
 811 void DolphinView::updateStatusBar()
 812 {
 813     // As the item count information is less important
 814     // in comparison with other messages, it should only
 815     // be shown if:
 816     // - the status bar is empty or
 817     // - shows already the item count information or
 818     // - shows only a not very important information
 819     // - if any progress is given don't show the item count info at all
 820     const QString msg(m_statusBar->message());
 821     const bool updateStatusBarMsg = (msg.isEmpty() ||
 822                                      (msg == m_statusBar->defaultText()) ||
 823                                      (m_statusBar->type() == DolphinStatusBar::Information)) &&
 824                                     (m_statusBar->progress() == 100);
 825
 826     const QString text(hasSelection() ? selectionStatusBarText() : defaultStatusBarText());
 827     m_statusBar->setDefaultText(text);
 828
 829     if (updateStatusBarMsg) {
 830         m_statusBar->setMessage(text, DolphinStatusBar::Default);
 831     }
 832 }
 833
 834 void DolphinView::requestActivation()
 835 {
 836     m_mainWindow->setActiveView(this);
 837 }
 838
 839 void DolphinView::changeNameFilter(const QString& nameFilter)
 840 {
 841     // The name filter of KDirLister does a 'hard' filtering, which
 842     // means that only the items are shown where the names match
 843     // exactly the filter. This is non-transparent for the user, which
 844     // just wants to have a 'soft' filtering: does the name contain
 845     // the filter string?
 846     QString adjustedFilter(nameFilter);
 847     adjustedFilter.insert(0, '*');
 848     adjustedFilter.append('*');
 849
 850     // Use the ProxyModel to filter:
 851     // This code is #ifdefed as setNameFilter behaves
 852     // slightly different than the QSortFilterProxyModel
 853     // as it will not remove directories. I will ask
 854     // our beloved usability experts for input
 855     // -- z.
 856 #if 0
 857     m_dirLister->setNameFilter(adjustedFilter);
 858     m_dirLister->emitChanges();
 859 #else
 860     m_proxyModel->setFilterRegExp( nameFilter );
 861 #endif
 862 }
 863
 864 void DolphinView::openContextMenu(const QPoint& pos)
 865 {
 866     KFileItem* item = 0;
 867
 868     const QModelIndex index = itemView()->indexAt(pos);
 869     if (index.isValid()) {
 870         item = fileItem(index);
 871     }
 872
 873     DolphinContextMenu contextMenu(this, item);
 874     contextMenu.open();
 875 }
 876
 877 void DolphinView::dropUrls(const KUrl::List& urls,
 878                            const QPoint& pos)
 879 {
 880     KFileItem* directory = 0;
 881     const QModelIndex index = itemView()->indexAt(pos);
 882     if (index.isValid()) {
 883         KFileItem* item = fileItem(index);
 884         assert(item != 0);
 885         if (item->isDir()) {
 886             // the URLs are dropped above a directory
 887             directory = item;
 888         }
 889     }
 890
 891     const KUrl& destination = (directory == 0) ? url() :
 892                                                  directory->url();
 893     dropUrls(urls, destination);
 894 }
 895
 896 void DolphinView::dropUrls(const KUrl::List& urls,
 897                            const KUrl& destination)
 898 {
 899     m_mainWindow->dropUrls(urls, destination);
 900 }
 901
 902
 903 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 904 {
 905     ViewProperties props(url());
 906     props.setSorting(sorting);
 907
 908     m_proxyModel->setSorting(sorting);
 909
 910     emit sortingChanged(sorting);
 911 }
 912
 913 void DolphinView::updateSortOrder(Qt::SortOrder order)
 914 {
 915     ViewProperties props(url());
 916     props.setSortOrder(order);
 917
 918     m_proxyModel->setSortOrder(order);
 919
 920     emit sortOrderChanged(order);
 921 }
 922
 923 void DolphinView::emitContentsMoved()
 924 {
 925     emit contentsMoved(contentsX(), contentsY());
 926 }
 927
 928 void DolphinView::updateActivationState()
 929 {
 930     m_urlNavigator->setActive(isActive());
 931 }
 932
 933 void DolphinView::createView()
 934 {
 935     // delete current view
 936     QAbstractItemView* view = itemView();
 937     if (view != 0) {
 938         m_topLayout->removeWidget(view);
 939         view->close();
 940         view->deleteLater();
 941         m_iconsView = 0;
 942         m_detailsView = 0;
 943     }
 944
 945     assert(m_iconsView == 0);
 946     assert(m_detailsView == 0);
 947
 948     // ... and recreate it representing the current mode
 949     switch (m_mode) {
 950         case IconsView:
 951             m_iconsView = new DolphinIconsView(this, m_controller);
 952             view = m_iconsView;
 953             break;
 954
 955         case DetailsView:
 956             m_detailsView = new DolphinDetailsView(this, m_controller);
 957             view = m_detailsView;
 958             break;
 959     }
 960
 961     view->setModel(m_proxyModel);
 962     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 963
 964     KFileItemDelegate* delegate = new KFileItemDelegate(this);
 965     delegate->setAdditionalInformation(KFileItemDelegate::FriendlyMimeType);
 966     view->setItemDelegate(delegate);
 967
 968     new KMimeTypeResolver(view, m_dirModel);
 969     m_topLayout->insertWidget(1, view);
 970
 971     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 972             m_controller, SLOT(indicateSelectionChange()));
 973     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
 974             this, SLOT(emitContentsMoved()));
 975     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
 976             this, SLOT(emitContentsMoved()));
 977 }
 978
 979 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
 980 {
 981     QItemSelectionModel* selectionModel = itemView()->selectionModel();
 982     const QAbstractItemModel* itemModel = selectionModel->model();
 983
 984     const QModelIndex topLeft = itemModel->index(0, 0);
 985     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 986                                                      itemModel->columnCount() - 1);
 987
 988     QItemSelection selection(topLeft, bottomRight);
 989     selectionModel->select(selection, flags);
 990 }
 991
 992 QAbstractItemView* DolphinView::itemView() const
 993 {
 994     assert((m_iconsView == 0) || (m_detailsView == 0));
 995     if (m_detailsView != 0) {
 996         return m_detailsView;
 997     }
 998     return m_iconsView;
 999 }
1000
1001 #include "dolphinview.moc"