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 <kio/previewjob.h>
  37 #include <kmimetyperesolver.h>
  38 #include <konq_operations.h>
  39 #include <kurl.h>
  40
  41 #include "dolphincontroller.h"
  42 #include "dolphinstatusbar.h"
  43 #include "dolphinmainwindow.h"
  44 #include "dolphindirlister.h"
  45 #include "dolphinsortfilterproxymodel.h"
  46 #include "dolphindetailsview.h"
  47 #include "dolphiniconsview.h"
  48 #include "dolphincontextmenu.h"
  49 #include "filterbar.h"
  50 #include "renamedialog.h"
  51 #include "urlnavigator.h"
  52 #include "viewproperties.h"
  53
  54 DolphinView::DolphinView(DolphinMainWindow* mainWindow,
  55                          QWidget* parent,
  56                          const KUrl& url,
  57                          Mode mode,
  58                          bool showHiddenFiles) :
  59     QWidget(parent),
  60     m_showProgress(false),
  61     m_mode(mode),
  62     m_iconSize(0),
  63     m_folderCount(0),
  64     m_fileCount(0),
  65     m_mainWindow(mainWindow),
  66     m_topLayout(0),
  67     m_urlNavigator(0),
  68     m_controller(0),
  69     m_iconsView(0),
  70     m_detailsView(0),
  71     m_filterBar(0),
  72     m_statusBar(0),
  73     m_dirModel(0),
  74     m_dirLister(0),
  75     m_proxyModel(0)
  76 {
  77     hide();
  78     setFocusPolicy(Qt::StrongFocus);
  79     m_topLayout = new QVBoxLayout(this);
  80     m_topLayout->setSpacing(0);
  81     m_topLayout->setMargin(0);
  82
  83     connect(m_mainWindow, SIGNAL(activeViewChanged()),
  84             this, SLOT(updateActivationState()));
  85
  86     m_urlNavigator = new UrlNavigator(url, this);
  87     m_urlNavigator->setShowHiddenFiles(showHiddenFiles);
  88     connect(m_urlNavigator, SIGNAL(urlChanged(const KUrl&)),
  89             this, SLOT(loadDirectory(const KUrl&)));
  90     connect(m_urlNavigator, SIGNAL(urlsDropped(const KUrl::List&, const KUrl&)),
  91             this, SLOT(dropUrls(const KUrl::List&, const KUrl&)));
  92     connect(m_urlNavigator, SIGNAL(activated()),
  93             this, SLOT(requestActivation()));
  94     connect(this, SIGNAL(contentsMoved(int, int)),
  95             m_urlNavigator, SLOT(storeContentsPosition(int, int)));
  96
  97     m_statusBar = new DolphinStatusBar(this);
  98
  99     m_dirLister = new DolphinDirLister();
 100     m_dirLister->setAutoUpdate(true);
 101     m_dirLister->setMainWindow(this);
 102     m_dirLister->setShowingDotFiles(showHiddenFiles);
 103     m_dirLister->setDelayedMimeTypes(true);
 104
 105     connect(m_dirLister, SIGNAL(clear()),
 106             this, SLOT(updateStatusBar()));
 107     connect(m_dirLister, SIGNAL(percent(int)),
 108             this, SLOT(updateProgress(int)));
 109     connect(m_dirLister, SIGNAL(deleteItem(KFileItem*)),
 110             this, SLOT(updateStatusBar()));
 111     connect(m_dirLister, SIGNAL(completed()),
 112             this, SLOT(updateItemCount()));
 113     connect(m_dirLister, SIGNAL(newItems(const KFileItemList&)),
 114             this, SLOT(generatePreviews(const KFileItemList&)));
 115     connect(m_dirLister, SIGNAL(infoMessage(const QString&)),
 116             this, SLOT(showInfoMessage(const QString&)));
 117     connect(m_dirLister, SIGNAL(errorMessage(const QString&)),
 118             this, SLOT(showErrorMessage(const QString&)));
 119
 120     m_dirModel = new KDirModel();
 121     m_dirModel->setDirLister(m_dirLister);
 122     m_dirModel->setDropsAllowed(KDirModel::DropOnDirectory);
 123
 124     m_proxyModel = new DolphinSortFilterProxyModel(this);
 125     m_proxyModel->setSourceModel(m_dirModel);
 126
 127     m_controller = new DolphinController(this);
 128     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 129             this, SLOT(openContextMenu(const QPoint&)));
 130     connect(m_controller, SIGNAL(urlsDropped(const KUrl::List&, const QPoint&)),
 131             this, SLOT(dropUrls(const KUrl::List&, const QPoint&)));
 132     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 133             this, SLOT(updateSorting(DolphinView::Sorting)));
 134     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 135             this, SLOT(updateSortOrder(Qt::SortOrder)));
 136     connect(m_controller, SIGNAL(itemTriggered(const QModelIndex&)),
 137             this, SLOT(triggerItem(const QModelIndex&)));
 138     connect(m_controller, SIGNAL(selectionChanged()),
 139             this, SLOT(emitSelectionChangedSignal()));
 140     connect(m_controller, SIGNAL(activated()),
 141             this, SLOT(requestActivation()));
 142
 143     createView();
 144
 145     m_iconSize = K3Icon::SizeMedium;
 146
 147     m_filterBar = new FilterBar(this);
 148     m_filterBar->hide();
 149     connect(m_filterBar, SIGNAL(filterChanged(const QString&)),
 150            this, SLOT(changeNameFilter(const QString&)));
 151     connect(m_filterBar, SIGNAL(closeRequest()),
 152             this, SLOT(closeFilterBar()));
 153
 154     m_topLayout->addWidget(m_urlNavigator);
 155     m_topLayout->addWidget(itemView());
 156     m_topLayout->addWidget(m_filterBar);
 157     m_topLayout->addWidget(m_statusBar);
 158
 159     loadDirectory(m_urlNavigator->url());
 160 }
 161
 162 DolphinView::~DolphinView()
 163 {
 164     delete m_dirLister;
 165     m_dirLister = 0;
 166 }
 167
 168 void DolphinView::setUrl(const KUrl& url)
 169 {
 170     m_urlNavigator->setUrl(url);
 171     m_controller->setUrl(url);
 172 }
 173
 174 const KUrl& DolphinView::url() const
 175 {
 176     return m_urlNavigator->url();
 177 }
 178
 179 bool DolphinView::isActive() const
 180 {
 181     return m_mainWindow->activeView() == this;
 182 }
 183
 184 void DolphinView::setMode(Mode mode)
 185 {
 186     if (mode == m_mode) {
 187         return; // the wished mode is already set
 188     }
 189
 190     m_mode = mode;
 191
 192     ViewProperties props(m_urlNavigator->url());
 193     props.setViewMode(m_mode);
 194
 195     createView();
 196     startDirLister(m_urlNavigator->url());
 197
 198     emit modeChanged();
 199 }
 200
 201 DolphinView::Mode DolphinView::mode() const
 202 {
 203     return m_mode;
 204 }
 205
 206 void DolphinView::setShowPreview(bool show)
 207 {
 208     ViewProperties props(m_urlNavigator->url());
 209     props.setShowPreview(show);
 210
 211     m_controller->setShowPreview(show);
 212
 213     emit showPreviewChanged();
 214     reload();
 215 }
 216
 217 bool DolphinView::showPreview() const
 218 {
 219     return m_controller->showPreview();
 220 }
 221
 222 void DolphinView::setShowHiddenFiles(bool show)
 223 {
 224     if (m_dirLister->showingDotFiles() == show) {
 225         return;
 226     }
 227
 228     ViewProperties props(m_urlNavigator->url());
 229     props.setShowHiddenFiles(show);
 230     props.save();
 231
 232     m_dirLister->setShowingDotFiles(show);
 233     m_urlNavigator->setShowHiddenFiles(show);
 234
 235     emit showHiddenFilesChanged();
 236
 237     reload();
 238 }
 239
 240 bool DolphinView::showHiddenFiles() const
 241 {
 242     return m_dirLister->showingDotFiles();
 243 }
 244
 245 void DolphinView::renameSelectedItems()
 246 {
 247     const KUrl::List urls = selectedUrls();
 248     if (urls.count() > 1) {
 249         // More than one item has been selected for renaming. Open
 250         // a rename dialog and rename all items afterwards.
 251         RenameDialog dialog(urls);
 252         if (dialog.exec() == QDialog::Rejected) {
 253             return;
 254         }
 255
 256         DolphinView* view = mainWindow()->activeView();
 257         const QString& newName = dialog.newName();
 258         if (newName.isEmpty()) {
 259             view->statusBar()->setMessage(i18n("The new item name is invalid."),
 260                                           DolphinStatusBar::Error);
 261         }
 262         else {
 263             // TODO: check how this can be integrated into KonqUndoManager/KonqOperations
 264
 265             //UndoManager& undoMan = UndoManager::instance();
 266             //undoMan.beginMacro();
 267
 268             assert(newName.contains('#'));
 269
 270             const int urlsCount = urls.count();
 271
 272             // iterate through all selected items and rename them...
 273             const int replaceIndex = newName.indexOf('#');
 274             assert(replaceIndex >= 0);
 275             for (int i = 0; i < urlsCount; ++i) {
 276                 const KUrl& source = urls[i];
 277                 QString number;
 278                 number.setNum(i + 1);
 279
 280                 QString name(newName);
 281                 name.replace(replaceIndex, 1, number);
 282
 283                 if (source.fileName() != name) {
 284                     KUrl dest(source.upUrl());
 285                     dest.addPath(name);
 286
 287                     const bool destExists = KIO::NetAccess::exists(dest, false, view);
 288                     if (destExists) {
 289                         view->statusBar()->setMessage(i18n("Renaming failed (item '%1' already exists).",name),
 290                                                       DolphinStatusBar::Error);
 291                         break;
 292                     }
 293                     else if (KIO::NetAccess::file_move(source, dest)) {
 294                         // TODO: From the users point of view he executed one 'rename n files' operation,
 295                         // but internally we store it as n 'rename 1 file' operations for the undo mechanism.
 296                         //DolphinCommand command(DolphinCommand::Rename, source, dest);
 297                         //undoMan.addCommand(command);
 298                     }
 299                 }
 300             }
 301
 302             //undoMan.endMacro();
 303         }
 304     }
 305     else {
 306         // Only one item has been selected for renaming. Use the custom
 307         // renaming mechanism from the views.
 308         assert(urls.count() == 1);
 309         // TODO:
 310         /*if (m_mode == DetailsView) {
 311             Q3ListViewItem* item = m_iconsView->firstChild();
 312             while (item != 0) {
 313                 if (item->isSelected()) {
 314                     m_iconsView->rename(item, DolphinDetailsView::NameColumn);
 315                     break;
 316                 }
 317                 item = item->nextSibling();
 318             }
 319         }
 320         else {
 321             KFileIconViewItem* item = static_cast<KFileIconViewItem*>(m_iconsView->firstItem());
 322             while (item != 0) {
 323                 if (item->isSelected()) {
 324                     item->rename();
 325                     break;
 326                 }
 327                 item = static_cast<KFileIconViewItem*>(item->nextItem());
 328             }
 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
 351     return itemView()->horizontalScrollBar()->value();
 352 }
 353
 354 int DolphinView::contentsY() const
 355 {
 356     return itemView()->verticalScrollBar()->value();
 357 }
 358
 359 void DolphinView::refreshSettings()
 360 {
 361     startDirLister(m_urlNavigator->url());
 362 }
 363
 364 void DolphinView::emitRequestItemInfo(const KUrl& url)
 365 {
 366     emit requestItemInfo(url);
 367 }
 368
 369 bool DolphinView::isFilterBarVisible() const
 370 {
 371   return m_filterBar->isVisible();
 372 }
 373
 374 bool DolphinView::isUrlEditable() const
 375 {
 376     return m_urlNavigator->isUrlEditable();
 377 }
 378
 379 void DolphinView::zoomIn()
 380 {
 381     m_controller->triggerZoomIn();
 382 }
 383
 384 void DolphinView::zoomOut()
 385 {
 386     m_controller->triggerZoomOut();
 387 }
 388
 389 bool DolphinView::isZoomInPossible() const
 390 {
 391     return m_controller->isZoomInPossible();
 392 }
 393
 394 bool DolphinView::isZoomOutPossible() const
 395 {
 396     return m_controller->isZoomOutPossible();
 397 }
 398
 399 void DolphinView::setSorting(Sorting sorting)
 400 {
 401     if (sorting != this->sorting()) {
 402         updateSorting(sorting);
 403     }
 404 }
 405
 406 DolphinView::Sorting DolphinView::sorting() const
 407 {
 408     return m_proxyModel->sorting();
 409 }
 410
 411 void DolphinView::setSortOrder(Qt::SortOrder order)
 412 {
 413     if (sortOrder() != order) {
 414         updateSortOrder(order);
 415     }
 416 }
 417
 418 Qt::SortOrder DolphinView::sortOrder() const
 419 {
 420     return m_proxyModel->sortOrder();
 421 }
 422
 423 void DolphinView::goBack()
 424 {
 425     m_urlNavigator->goBack();
 426 }
 427
 428 void DolphinView::goForward()
 429 {
 430     m_urlNavigator->goForward();
 431 }
 432
 433 void DolphinView::goUp()
 434 {
 435     m_urlNavigator->goUp();
 436 }
 437
 438 void DolphinView::goHome()
 439 {
 440     m_urlNavigator->goHome();
 441 }
 442
 443 void DolphinView::setUrlEditable(bool editable)
 444 {
 445     m_urlNavigator->editUrl(editable);
 446 }
 447
 448 const QLinkedList<UrlNavigator::HistoryElem> DolphinView::urlHistory(int& index) const
 449 {
 450     return m_urlNavigator->history(index);
 451 }
 452
 453 bool DolphinView::hasSelection() const
 454 {
 455     return itemView()->selectionModel()->hasSelection();
 456 }
 457
 458 KFileItemList DolphinView::selectedItems() const
 459 {
 460     const QAbstractItemView* view = itemView();
 461
 462     // Our view has a selection, we will map them back to the DirModel
 463     // and then fill the KFileItemList.
 464     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 465
 466     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 467     KFileItemList itemList;
 468
 469     const QModelIndexList indexList = selection.indexes();
 470     QModelIndexList::const_iterator end = indexList.end();
 471     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 472         Q_ASSERT((*it).isValid());
 473
 474         KFileItem* item = m_dirModel->itemForIndex(*it);
 475         if (item != 0) {
 476             itemList.append(item);
 477         }
 478     }
 479
 480     return itemList;
 481 }
 482
 483 KUrl::List DolphinView::selectedUrls() const
 484 {
 485     KUrl::List urls;
 486
 487     const KFileItemList list = selectedItems();
 488     KFileItemList::const_iterator it = list.begin();
 489     const KFileItemList::const_iterator end = list.end();
 490     while (it != end) {
 491         KFileItem* item = *it;
 492         urls.append(item->url());
 493         ++it;
 494     }
 495
 496     return urls;
 497 }
 498
 499 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 500 {
 501     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 502     return m_dirModel->itemForIndex(dirModelIndex);
 503 }
 504
 505 void DolphinView::rename(const KUrl& source, const QString& newName)
 506 {
 507     bool ok = false;
 508
 509     if (newName.isEmpty() || (source.fileName() == newName)) {
 510         return;
 511     }
 512
 513     KUrl dest(source.upUrl());
 514     dest.addPath(newName);
 515
 516     const bool destExists = KIO::NetAccess::exists(dest,
 517                                                    false,
 518                                                    mainWindow()->activeView());
 519     if (destExists) {
 520         // the destination already exists, hence ask the user
 521         // how to proceed...
 522         KIO::RenameDialog renameDialog(this,
 523                                        i18n("File Already Exists"),
 524                                        source.path(),
 525                                        dest.path(),
 526                                        KIO::M_OVERWRITE);
 527         switch (renameDialog.exec()) {
 528             case KIO::R_OVERWRITE:
 529                 // the destination should be overwritten
 530                 ok = KIO::NetAccess::file_move(source, dest, -1, true);
 531                 break;
 532
 533             case KIO::R_RENAME: {
 534                 // a new name for the destination has been used
 535                 KUrl newDest(renameDialog.newDestUrl());
 536                 ok = KIO::NetAccess::file_move(source, newDest);
 537                 break;
 538             }
 539
 540             default:
 541                 // the renaming operation has been canceled
 542                 reload();
 543                 return;
 544         }
 545     }
 546     else {
 547         // no destination exists, hence just move the file to
 548         // do the renaming
 549         ok = KIO::NetAccess::file_move(source, dest);
 550     }
 551
 552     const QString destFileName = dest.fileName();
 553     if (ok) {
 554         m_statusBar->setMessage(i18n("Renamed file '%1' to '%2'.",source.fileName(), destFileName),
 555                                 DolphinStatusBar::OperationCompleted);
 556
 557         KonqOperations::rename(this, source, destFileName);
 558     }
 559     else {
 560         m_statusBar->setMessage(i18n("Renaming of file '%1' to '%2' failed.",source.fileName(), destFileName),
 561                                 DolphinStatusBar::Error);
 562         reload();
 563     }
 564 }
 565
 566 void DolphinView::reload()
 567 {
 568     startDirLister(m_urlNavigator->url(), true);
 569 }
 570
 571 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 572 {
 573     QWidget::mouseReleaseEvent(event);
 574     mainWindow()->setActiveView(this);
 575 }
 576
 577 DolphinMainWindow* DolphinView::mainWindow() const
 578 {
 579     return m_mainWindow;
 580 }
 581
 582 void DolphinView::loadDirectory(const KUrl& url)
 583 {
 584     const ViewProperties props(url);
 585
 586     const Mode mode = props.viewMode();
 587     if (m_mode != mode) {
 588         m_mode = mode;
 589         createView();
 590         emit modeChanged();
 591     }
 592
 593     const bool showHiddenFiles = props.showHiddenFiles();
 594     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 595         m_dirLister->setShowingDotFiles(showHiddenFiles);
 596         emit showHiddenFilesChanged();
 597     }
 598
 599     const DolphinView::Sorting sorting = props.sorting();
 600     if (sorting != m_proxyModel->sorting()) {
 601         m_proxyModel->setSorting(sorting);
 602         emit sortingChanged(sorting);
 603     }
 604
 605     const Qt::SortOrder sortOrder = props.sortOrder();
 606     if (sortOrder != m_proxyModel->sortOrder()) {
 607         m_proxyModel->setSortOrder(sortOrder);
 608         emit sortOrderChanged(sortOrder);
 609     }
 610
 611     const bool showPreview = props.showPreview();
 612     if (showPreview != m_controller->showPreview()) {
 613         m_controller->setShowPreview(showPreview);
 614         emit showPreviewChanged();
 615     }
 616
 617     startDirLister(url);
 618     emit urlChanged(url);
 619
 620     m_statusBar->clear();
 621 }
 622
 623 void DolphinView::triggerItem(const QModelIndex& index)
 624 {
 625     if (!isValidNameIndex(index)) {
 626         return;
 627     }
 628
 629     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 630     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 631         // items are selected by the user, hence don't trigger the
 632         // item specified by 'index'
 633         return;
 634     }
 635
 636     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 637     if (item == 0) {
 638         return;
 639     }
 640
 641     if (item->isDir()) {
 642         // Prefer the local path over the URL. This assures that the
 643         // volume space information is correct. Assuming that the URL is media:/sda1,
 644         // and the local path is /windows/C: For the URL the space info is related
 645         // to the root partition (and hence wrong) and for the local path the space
 646         // info is related to the windows partition (-> correct).
 647         const QString localPath(item->localPath());
 648         if (localPath.isEmpty()) {
 649             setUrl(item->url());
 650         }
 651         else {
 652             setUrl(KUrl(localPath));
 653         }
 654     }
 655     else {
 656         item->run();
 657     }
 658 }
 659
 660 void DolphinView::updateProgress(int percent)
 661 {
 662     if (m_showProgress) {
 663         m_statusBar->setProgress(percent);
 664     }
 665 }
 666
 667 void DolphinView::updateItemCount()
 668 {
 669     if (m_showProgress) {
 670         m_statusBar->setProgressText(QString());
 671         m_statusBar->setProgress(100);
 672         m_showProgress = false;
 673     }
 674
 675     KFileItemList items(m_dirLister->items());
 676     KFileItemList::const_iterator it = items.begin();
 677     const KFileItemList::const_iterator end = items.end();
 678
 679     m_fileCount = 0;
 680     m_folderCount = 0;
 681
 682     while (it != end) {
 683         KFileItem* item = *it;
 684         if (item->isDir()) {
 685             ++m_folderCount;
 686         }
 687         else {
 688             ++m_fileCount;
 689         }
 690         ++it;
 691     }
 692
 693     updateStatusBar();
 694
 695     QTimer::singleShot(0, this, SLOT(restoreContentsPos()));
 696 }
 697
 698 void DolphinView::generatePreviews(const KFileItemList& items)
 699 {
 700     if (m_controller->showPreview()) {
 701         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 702         connect(job, SIGNAL(gotPreview(const KFileItem*, const QPixmap&)),
 703                 this, SLOT(showPreview(const KFileItem*, const QPixmap&)));
 704     }
 705 }
 706
 707 void DolphinView::showPreview(const KFileItem* item, const QPixmap& pixmap)
 708 {
 709     Q_ASSERT(item != 0);
 710     const QModelIndex idx = m_dirModel->indexForItem(*item);
 711     if (idx.isValid() && (idx.column() == 0)) {
 712         m_dirModel->setData(idx, pixmap, Qt::DecorationRole);
 713     }
 714 }
 715
 716 void DolphinView::restoreContentsPos()
 717 {
 718     int index = 0;
 719     const QLinkedList<UrlNavigator::HistoryElem> history = urlHistory(index);
 720     if (!history.isEmpty()) {
 721         QAbstractItemView* view = itemView();
 722         // TODO: view->setCurrentItem(history[index].currentFileName());
 723
 724         QLinkedList<UrlNavigator::HistoryElem>::const_iterator it = history.begin();
 725         it += index;
 726         view->horizontalScrollBar()->setValue((*it).contentsX());
 727         view->verticalScrollBar()->setValue((*it).contentsY());
 728     }
 729 }
 730
 731 void DolphinView::showInfoMessage(const QString& msg)
 732 {
 733     m_statusBar->setMessage(msg, DolphinStatusBar::Information);
 734 }
 735
 736 void DolphinView::showErrorMessage(const QString& msg)
 737 {
 738     m_statusBar->setMessage(msg, DolphinStatusBar::Error);
 739 }
 740
 741 void DolphinView::emitSelectionChangedSignal()
 742 {
 743     emit selectionChanged();
 744 }
 745
 746 void DolphinView::closeFilterBar()
 747 {
 748     m_filterBar->hide();
 749     emit showFilterBarChanged(false);
 750 }
 751
 752 void DolphinView::startDirLister(const KUrl& url, bool reload)
 753 {
 754     if (!url.isValid()) {
 755         const QString location(url.pathOrUrl());
 756         if (location.isEmpty()) {
 757             m_statusBar->setMessage(i18n("The location is empty."), DolphinStatusBar::Error);
 758         }
 759         else {
 760             m_statusBar->setMessage(i18n("The location '%1' is invalid.",location),
 761                                     DolphinStatusBar::Error);
 762         }
 763         return;
 764     }
 765
 766     // Only show the directory loading progress if the status bar does
 767     // not contain another progress information. This means that
 768     // the directory loading progress information has the lowest priority.
 769     const QString progressText(m_statusBar->progressText());
 770     m_showProgress = progressText.isEmpty() ||
 771                      (progressText == i18n("Loading directory..."));
 772     if (m_showProgress) {
 773         m_statusBar->setProgressText(i18n("Loading directory..."));
 774         m_statusBar->setProgress(0);
 775     }
 776
 777     m_dirLister->stop();
 778     m_dirLister->openUrl(url, false, reload);
 779 }
 780
 781 QString DolphinView::defaultStatusBarText() const
 782 {
 783     return KIO::itemsSummaryString(m_fileCount + m_folderCount,
 784                                    m_fileCount,
 785                                    m_folderCount,
 786                                    0, false);
 787 }
 788
 789 QString DolphinView::selectionStatusBarText() const
 790 {
 791     QString text;
 792     const KFileItemList list = selectedItems();
 793     if (list.isEmpty()) {
 794         // when an item is triggered, it is temporary selected but selectedItems()
 795         // will return an empty list
 796         return QString();
 797     }
 798
 799     int fileCount = 0;
 800     int folderCount = 0;
 801     KIO::filesize_t byteSize = 0;
 802     KFileItemList::const_iterator it = list.begin();
 803     const KFileItemList::const_iterator end = list.end();
 804     while (it != end){
 805         KFileItem* item = *it;
 806         if (item->isDir()) {
 807             ++folderCount;
 808         }
 809         else {
 810             ++fileCount;
 811             byteSize += item->size();
 812         }
 813         ++it;
 814     }
 815
 816     if (folderCount > 0) {
 817         text = i18np("1 Folder selected", "%1 Folders selected", folderCount);
 818         if (fileCount > 0) {
 819             text += ", ";
 820         }
 821     }
 822
 823     if (fileCount > 0) {
 824         const QString sizeText(KIO::convertSize(byteSize));
 825         text += i18np("1 File selected (%2)", "%1 Files selected (%2)", fileCount, sizeText);
 826     }
 827
 828     return text;
 829 }
 830
 831 void DolphinView::showFilterBar(bool show)
 832 {
 833     assert(m_filterBar != 0);
 834     if (show) {
 835         m_filterBar->show();
 836     }
 837     else {
 838         m_filterBar->hide();
 839     }
 840 }
 841
 842 void DolphinView::updateStatusBar()
 843 {
 844     // As the item count information is less important
 845     // in comparison with other messages, it should only
 846     // be shown if:
 847     // - the status bar is empty or
 848     // - shows already the item count information or
 849     // - shows only a not very important information
 850     // - if any progress is given don't show the item count info at all
 851     const QString msg(m_statusBar->message());
 852     const bool updateStatusBarMsg = (msg.isEmpty() ||
 853                                      (msg == m_statusBar->defaultText()) ||
 854                                      (m_statusBar->type() == DolphinStatusBar::Information)) &&
 855                                     (m_statusBar->progress() == 100);
 856
 857     const QString text(hasSelection() ? selectionStatusBarText() : defaultStatusBarText());
 858     m_statusBar->setDefaultText(text);
 859
 860     if (updateStatusBarMsg) {
 861         m_statusBar->setMessage(text, DolphinStatusBar::Default);
 862     }
 863 }
 864
 865 void DolphinView::requestActivation()
 866 {
 867     m_mainWindow->setActiveView(this);
 868 }
 869
 870 void DolphinView::changeNameFilter(const QString& nameFilter)
 871 {
 872     // The name filter of KDirLister does a 'hard' filtering, which
 873     // means that only the items are shown where the names match
 874     // exactly the filter. This is non-transparent for the user, which
 875     // just wants to have a 'soft' filtering: does the name contain
 876     // the filter string?
 877     QString adjustedFilter(nameFilter);
 878     adjustedFilter.insert(0, '*');
 879     adjustedFilter.append('*');
 880
 881     // Use the ProxyModel to filter:
 882     // This code is #ifdefed as setNameFilter behaves
 883     // slightly different than the QSortFilterProxyModel
 884     // as it will not remove directories. I will ask
 885     // our beloved usability experts for input
 886     // -- z.
 887 #if 0
 888     m_dirLister->setNameFilter(adjustedFilter);
 889     m_dirLister->emitChanges();
 890 #else
 891     m_proxyModel->setFilterRegExp( nameFilter );
 892 #endif
 893 }
 894
 895 void DolphinView::openContextMenu(const QPoint& pos)
 896 {
 897     KFileItem* item = 0;
 898
 899     const QModelIndex index = itemView()->indexAt(pos);
 900     if (isValidNameIndex(index)) {
 901         item = fileItem(index);
 902     }
 903
 904     DolphinContextMenu contextMenu(this, item);
 905     contextMenu.open();
 906 }
 907
 908 void DolphinView::dropUrls(const KUrl::List& urls,
 909                            const QPoint& pos)
 910 {
 911     KFileItem* directory = 0;
 912     const QModelIndex index = itemView()->indexAt(pos);
 913     if (isValidNameIndex(index)) {
 914         KFileItem* item = fileItem(index);
 915         assert(item != 0);
 916         if (item->isDir()) {
 917             // the URLs are dropped above a directory
 918             directory = item;
 919         }
 920     }
 921
 922     const KUrl& destination = (directory == 0) ? url() :
 923                                                  directory->url();
 924     dropUrls(urls, destination);
 925 }
 926
 927 void DolphinView::dropUrls(const KUrl::List& urls,
 928                            const KUrl& destination)
 929 {
 930     m_mainWindow->dropUrls(urls, destination);
 931 }
 932
 933
 934 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 935 {
 936     ViewProperties props(url());
 937     props.setSorting(sorting);
 938
 939     m_proxyModel->setSorting(sorting);
 940
 941     emit sortingChanged(sorting);
 942 }
 943
 944 void DolphinView::updateSortOrder(Qt::SortOrder order)
 945 {
 946     ViewProperties props(url());
 947     props.setSortOrder(order);
 948
 949     m_proxyModel->setSortOrder(order);
 950
 951     emit sortOrderChanged(order);
 952 }
 953
 954 void DolphinView::emitContentsMoved()
 955 {
 956     emit contentsMoved(contentsX(), contentsY());
 957 }
 958
 959 void DolphinView::updateActivationState()
 960 {
 961     m_urlNavigator->setActive(isActive());
 962 }
 963
 964 void DolphinView::createView()
 965 {
 966     // delete current view
 967     QAbstractItemView* view = itemView();
 968     if (view != 0) {
 969         m_topLayout->removeWidget(view);
 970         view->close();
 971         view->deleteLater();
 972         m_iconsView = 0;
 973         m_detailsView = 0;
 974     }
 975
 976     assert(m_iconsView == 0);
 977     assert(m_detailsView == 0);
 978
 979     // ... and recreate it representing the current mode
 980     switch (m_mode) {
 981         case IconsView:
 982             m_iconsView = new DolphinIconsView(this, m_controller);
 983             view = m_iconsView;
 984             break;
 985
 986         case DetailsView:
 987             m_detailsView = new DolphinDetailsView(this, m_controller);
 988             view = m_detailsView;
 989             break;
 990     }
 991
 992     view->setModel(m_proxyModel);
 993     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
 994
 995     new KMimeTypeResolver(view, m_dirModel);
 996     m_topLayout->insertWidget(1, view);
 997
 998     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
 999             m_controller, SLOT(indicateSelectionChange()));
1000     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1001             this, SLOT(emitContentsMoved()));
1002     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1003             this, SLOT(emitContentsMoved()));
1004 }
1005
1006 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
1007 {
1008     QItemSelectionModel* selectionModel = itemView()->selectionModel();
1009     const QAbstractItemModel* itemModel = selectionModel->model();
1010
1011     const QModelIndex topLeft = itemModel->index(0, 0);
1012     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
1013                                                      itemModel->columnCount() - 1);
1014
1015     QItemSelection selection(topLeft, bottomRight);
1016     selectionModel->select(selection, flags);
1017 }
1018
1019 QAbstractItemView* DolphinView::itemView() const
1020 {
1021     Q_ASSERT((m_iconsView == 0) || (m_detailsView == 0));
1022     if (m_detailsView != 0) {
1023         return m_detailsView;
1024     }
1025     return m_iconsView;
1026 }
1027
1028 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
1029 {
1030     return index.isValid() && (index.column() == KDirModel::Name);
1031 }
1032
1033 #include "dolphinview.moc"