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 <QItemSelectionModel>
  24 #include <Q3ValueList>
  25 #include <QDropEvent>
  26 #include <QMouseEvent>
  27 #include <QVBoxLayout>
  28
  29 #include <kdirmodel.h>
  30 #include <kfileitemdelegate.h>
  31 #include <kurl.h>
  32 #include <klocale.h>
  33 #include <kio/netaccess.h>
  34 #include <kio/renamedialog.h>
  35 #include <kmimetyperesolver.h>
  36 #include <assert.h>
  37
  38 #include "urlnavigator.h"
  39 #include "dolphinstatusbar.h"
  40 #include "dolphinmainwindow.h"
  41 #include "dolphindirlister.h"
  42 #include "dolphinsortfilterproxymodel.h"
  43 #include "viewproperties.h"
  44 #include "dolphindetailsview.h"
  45 #include "dolphiniconsview.h"
  46 #include "dolphincontextmenu.h"
  47 #include "undomanager.h"
  48 #include "renamedialog.h"
  49 #include "progressindicator.h"
  50 #include "filterbar.h"
  51
  52 DolphinView::DolphinView(DolphinMainWindow *mainWindow,
  53                          QWidget *parent,
  54                          const KUrl& url,
  55                          Mode mode,
  56                          bool showHiddenFiles) :
  57     QWidget(parent),
  58     m_refreshing(false),
  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_iconsView(0),
  68     m_detailsView(0),
  69     m_filterBar(0),
  70     m_statusBar(0),
  71     m_dirModel(0),
  72     m_dirLister(0),
  73     m_proxyModel(0)
  74 {
  75     hide();
  76     setFocusPolicy(Qt::StrongFocus);
  77     m_topLayout = new QVBoxLayout(this);
  78     m_topLayout->setSpacing(0);
  79     m_topLayout->setMargin(0);
  80
  81     m_urlNavigator = new UrlNavigator(url, this);
  82     connect(m_urlNavigator, SIGNAL(urlChanged(const KUrl&)),
  83             this, SLOT(loadDirectory(const KUrl&)));
  84
  85     m_statusBar = new DolphinStatusBar(this);
  86
  87     m_dirLister = new DolphinDirLister();
  88     m_dirLister->setAutoUpdate(true);
  89     m_dirLister->setMainWindow(this);
  90     m_dirLister->setShowingDotFiles(showHiddenFiles);
  91     m_dirLister->setDelayedMimeTypes(true);
  92
  93     connect(m_dirLister, SIGNAL(clear()),
  94             this, SLOT(slotClear()));
  95     connect(m_dirLister, SIGNAL(percent(int)),
  96             this, SLOT(slotPercent(int)));
  97     connect(m_dirLister, SIGNAL(deleteItem(KFileItem*)),
  98             this, SLOT(slotDeleteItem(KFileItem*)));
  99     connect(m_dirLister, SIGNAL(completed()),
 100             this, SLOT(slotCompleted()));
 101     connect(m_dirLister, SIGNAL(infoMessage(const QString&)),
 102             this, SLOT(slotInfoMessage(const QString&)));
 103     connect(m_dirLister, SIGNAL(errorMessage(const QString&)),
 104             this, SLOT(slotErrorMessage(const QString&)));
 105
 106     m_dirModel = new KDirModel();
 107     m_dirModel->setDirLister(m_dirLister);
 108     m_dirModel->setDropsAllowed(KDirModel::DropOnDirectory);
 109
 110     m_proxyModel = new DolphinSortFilterProxyModel(this);
 111     m_proxyModel->setSourceModel(m_dirModel);
 112
 113     createView();
 114
 115     m_iconSize = K3Icon::SizeMedium;
 116
 117     m_filterBar = new FilterBar(this);
 118     m_filterBar->hide();
 119     connect(m_filterBar, SIGNAL(filterChanged(const QString&)),
 120            this, SLOT(slotChangeNameFilter(const QString&)));
 121     connect(m_filterBar, SIGNAL(closed()),
 122             this, SLOT(closeFilterBar()));
 123
 124     m_topLayout->addWidget(m_urlNavigator);
 125     m_topLayout->addWidget(itemView());
 126     m_topLayout->addWidget(m_filterBar);
 127     m_topLayout->addWidget(m_statusBar);
 128
 129     loadDirectory(m_urlNavigator->url());
 130 }
 131
 132 DolphinView::~DolphinView()
 133 {
 134     delete m_dirLister;
 135     m_dirLister = 0;
 136 }
 137
 138 void DolphinView::setUrl(const KUrl& url)
 139 {
 140     m_urlNavigator->setUrl(url);
 141 }
 142
 143 const KUrl& DolphinView::url() const
 144 {
 145     return m_urlNavigator->url();
 146 }
 147
 148 void DolphinView::requestActivation()
 149 {
 150     mainWindow()->setActiveView(this);
 151 }
 152
 153 bool DolphinView::isActive() const
 154 {
 155     return (mainWindow()->activeView() == this);
 156 }
 157
 158 void DolphinView::setMode(Mode mode)
 159 {
 160     if (mode == m_mode) {
 161         return;         // the wished mode is already set
 162     }
 163
 164     m_mode = mode;
 165
 166     ViewProperties props(m_urlNavigator->url());
 167     props.setViewMode(m_mode);
 168
 169     createView();
 170     startDirLister(m_urlNavigator->url());
 171
 172     emit modeChanged();
 173 }
 174
 175 DolphinView::Mode DolphinView::mode() const
 176 {
 177     return m_mode;
 178 }
 179
 180 void DolphinView::setShowPreview(bool show)
 181 {
 182     ViewProperties props(m_urlNavigator->url());
 183     props.setShowPreview(show);
 184
 185     // TODO: wait until previews are possible with KFileItemDelegate
 186
 187     emit showPreviewChanged();
 188 }
 189
 190 bool DolphinView::showPreview() const
 191 {
 192     // TODO: wait until previews are possible with KFileItemDelegate
 193     return true;
 194 }
 195
 196 void DolphinView::setShowHiddenFiles(bool show)
 197 {
 198     if (m_dirLister->showingDotFiles() == show) {
 199         return;
 200     }
 201
 202     ViewProperties props(m_urlNavigator->url());
 203     props.setShowHiddenFiles(show);
 204     props.save();
 205
 206     m_dirLister->setShowingDotFiles(show);
 207
 208     emit showHiddenFilesChanged();
 209
 210     reload();
 211 }
 212
 213 bool DolphinView::showHiddenFiles() const
 214 {
 215     return m_dirLister->showingDotFiles();
 216 }
 217
 218 void DolphinView::renameSelectedItems()
 219 {
 220     const KUrl::List urls = selectedUrls();
 221     if (urls.count() > 1) {
 222         // More than one item has been selected for renaming. Open
 223         // a rename dialog and rename all items afterwards.
 224         RenameDialog dialog(urls);
 225         if (dialog.exec() == QDialog::Rejected) {
 226             return;
 227         }
 228
 229         DolphinView* view = mainWindow()->activeView();
 230         const QString& newName = dialog.newName();
 231         if (newName.isEmpty()) {
 232             view->statusBar()->setMessage(i18n("The new item name is invalid."),
 233                                           DolphinStatusBar::Error);
 234         }
 235         else {
 236             UndoManager& undoMan = UndoManager::instance();
 237             undoMan.beginMacro();
 238
 239             assert(newName.contains('#'));
 240
 241             const int urlsCount = urls.count();
 242             ProgressIndicator* progressIndicator =
 243                 new  ProgressIndicator(mainWindow(),
 244                                        i18n("Renaming items..."),
 245                                        i18n("Renaming finished."),
 246                                        urlsCount);
 247
 248             // iterate through all selected items and rename them...
 249             const int replaceIndex = newName.indexOf('#');
 250             assert(replaceIndex >= 0);
 251             for (int i = 0; i < urlsCount; ++i) {
 252                 const KUrl& source = urls[i];
 253                 QString name(newName);
 254                 name.replace(replaceIndex, 1, renameIndexPresentation(i + 1, urlsCount));
 255
 256                 if (source.fileName() != name) {
 257                     KUrl dest(source.upUrl());
 258                     dest.addPath(name);
 259
 260                     const bool destExists = KIO::NetAccess::exists(dest, false, view);
 261                     if (destExists) {
 262                         delete progressIndicator;
 263                         progressIndicator = 0;
 264                         view->statusBar()->setMessage(i18n("Renaming failed (item '%1' already exists).",name),
 265                                                       DolphinStatusBar::Error);
 266                         break;
 267                     }
 268                     else if (KIO::NetAccess::file_move(source, dest)) {
 269                         // TODO: From the users point of view he executed one 'rename n files' operation,
 270                         // but internally we store it as n 'rename 1 file' operations for the undo mechanism.
 271                         DolphinCommand command(DolphinCommand::Rename, source, dest);
 272                         undoMan.addCommand(command);
 273                     }
 274                 }
 275
 276                 progressIndicator->execOperation();
 277             }
 278             delete progressIndicator;
 279             progressIndicator = 0;
 280
 281             undoMan.endMacro();
 282         }
 283     }
 284     else {
 285         // Only one item has been selected for renaming. Use the custom
 286         // renaming mechanism from the views.
 287         assert(urls.count() == 1);
 288         // TODO:
 289         /*if (m_mode == DetailsView) {
 290             Q3ListViewItem* item = m_iconsView->firstChild();
 291             while (item != 0) {
 292                 if (item->isSelected()) {
 293                     m_iconsView->rename(item, DolphinDetailsView::NameColumn);
 294                     break;
 295                 }
 296                 item = item->nextSibling();
 297             }
 298         }
 299         else {
 300             KFileIconViewItem* item = static_cast<KFileIconViewItem*>(m_iconsView->firstItem());
 301             while (item != 0) {
 302                 if (item->isSelected()) {
 303                     item->rename();
 304                     break;
 305                 }
 306                 item = static_cast<KFileIconViewItem*>(item->nextItem());
 307             }
 308         }*/
 309     }
 310 }
 311
 312 void DolphinView::selectAll()
 313 {
 314     selectAll(QItemSelectionModel::Select);
 315 }
 316
 317 void DolphinView::invertSelection()
 318 {
 319     selectAll(QItemSelectionModel::Toggle);
 320 }
 321
 322 DolphinStatusBar* DolphinView::statusBar() const
 323 {
 324     return m_statusBar;
 325 }
 326
 327 int DolphinView::contentsX() const
 328 {
 329
 330     return 0; //scrollView()->contentsX();
 331 }
 332
 333 int DolphinView::contentsY() const
 334 {
 335     return 0; //scrollView()->contentsY();
 336 }
 337
 338 void DolphinView::refreshSettings()
 339 {
 340     startDirLister(m_urlNavigator->url());
 341 }
 342
 343 void DolphinView::updateStatusBar()
 344 {
 345     // As the item count information is less important
 346     // in comparison with other messages, it should only
 347     // be shown if:
 348     // - the status bar is empty or
 349     // - shows already the item count information or
 350     // - shows only a not very important information
 351     // - if any progress is given don't show the item count info at all
 352     const QString msg(m_statusBar->message());
 353     const bool updateStatusBarMsg = (msg.isEmpty() ||
 354                                      (msg == m_statusBar->defaultText()) ||
 355                                      (m_statusBar->type() == DolphinStatusBar::Information)) &&
 356                                     (m_statusBar->progress() == 100);
 357
 358     const QString text(hasSelection() ? selectionStatusBarText() : defaultStatusBarText());
 359     m_statusBar->setDefaultText(text);
 360
 361     if (updateStatusBarMsg) {
 362         m_statusBar->setMessage(text, DolphinStatusBar::Default);
 363     }
 364 }
 365
 366 void DolphinView::emitRequestItemInfo(const KUrl& url)
 367 {
 368     emit requestItemInfo(url);
 369 }
 370
 371 bool DolphinView::isFilterBarVisible() const
 372 {
 373   return m_filterBar->isVisible();
 374 }
 375
 376 bool DolphinView::isUrlEditable() const
 377 {
 378     return m_urlNavigator->isUrlEditable();
 379 }
 380
 381 void DolphinView::zoomIn()
 382 {
 383     //itemEffectsManager()->zoomIn();
 384 }
 385
 386 void DolphinView::zoomOut()
 387 {
 388     //itemEffectsManager()->zoomOut();
 389 }
 390
 391 bool DolphinView::isZoomInPossible() const
 392 {
 393     return false; //itemEffectsManager()->isZoomInPossible();
 394 }
 395
 396 bool DolphinView::isZoomOutPossible() const
 397 {
 398     return false; //itemEffectsManager()->isZoomOutPossible();
 399 }
 400
 401 void DolphinView::setSorting(Sorting sorting)
 402 {
 403     if (sorting != this->sorting()) {
 404         ViewProperties props(url());
 405         props.setSorting(sorting);
 406
 407         m_proxyModel->setSorting(sorting);
 408
 409         emit sortingChanged(sorting);
 410     }
 411 }
 412
 413 DolphinView::Sorting DolphinView::sorting() const
 414 {
 415     return m_proxyModel->sorting();
 416 }
 417
 418 void DolphinView::setSortOrder(Qt::SortOrder order)
 419 {
 420     if (sortOrder() != order) {
 421         ViewProperties props(url());
 422         props.setSortOrder(order);
 423
 424         m_proxyModel->setSortOrder(order);
 425
 426         emit sortOrderChanged(order);
 427     }
 428 }
 429
 430 Qt::SortOrder DolphinView::sortOrder() const
 431 {
 432     return m_proxyModel->sortOrder();
 433 }
 434
 435 void DolphinView::goBack()
 436 {
 437     m_urlNavigator->goBack();
 438 }
 439
 440 void DolphinView::goForward()
 441 {
 442     m_urlNavigator->goForward();
 443 }
 444
 445 void DolphinView::goUp()
 446 {
 447     m_urlNavigator->goUp();
 448 }
 449
 450 void DolphinView::goHome()
 451 {
 452     m_urlNavigator->goHome();
 453 }
 454
 455 void DolphinView::setUrlEditable(bool editable)
 456 {
 457     m_urlNavigator->editUrl(editable);
 458 }
 459
 460 const Q3ValueList<UrlNavigator::HistoryElem> DolphinView::urlHistory(int& index) const
 461 {
 462     return m_urlNavigator->history(index);
 463 }
 464
 465 bool DolphinView::hasSelection() const
 466 {
 467     return itemView()->selectionModel()->hasSelection();
 468 }
 469
 470 KFileItemList DolphinView::selectedItems() const
 471 {
 472     const QAbstractItemView* view = itemView();
 473
 474     // Our view has a selection, we will map them back to the DirModel
 475     // and then fill the KFileItemList.
 476     assert((view != 0) && (view->selectionModel() != 0));
 477
 478     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 479     KFileItemList itemList;
 480
 481     const QModelIndexList indexList = selection.indexes();
 482     QModelIndexList::const_iterator end = indexList.end();
 483     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 484         assert((*it).isValid());
 485
 486         KFileItem* item = m_dirModel->itemForIndex(*it);
 487         if (item != 0) {
 488             itemList.append(item);
 489         }
 490     }
 491
 492     return itemList;
 493 }
 494
 495 KUrl::List DolphinView::selectedUrls() const
 496 {
 497     KUrl::List urls;
 498
 499     const KFileItemList list = selectedItems();
 500     KFileItemList::const_iterator it = list.begin();
 501     const KFileItemList::const_iterator end = list.end();
 502     while (it != end) {
 503         KFileItem* item = *it;
 504         urls.append(item->url());
 505         ++it;
 506     }
 507
 508     return urls;
 509 }
 510
 511 const KFileItem* DolphinView::currentFileItem() const
 512 {
 513     return 0; // fileView()->currentFileItem();
 514 }
 515
 516 void DolphinView::openContextMenu(KFileItem* fileInfo, const QPoint& pos)
 517 {
 518     DolphinContextMenu contextMenu(this, fileInfo, pos);
 519     contextMenu.open();
 520 }
 521
 522 void DolphinView::rename(const KUrl& source, const QString& newName)
 523 {
 524     bool ok = false;
 525
 526     if (newName.isEmpty() || (source.fileName() == newName)) {
 527         return;
 528     }
 529
 530     KUrl dest(source.upUrl());
 531     dest.addPath(newName);
 532
 533     const bool destExists = KIO::NetAccess::exists(dest,
 534                                                    false,
 535                                                    mainWindow()->activeView());
 536     if (destExists) {
 537         // the destination already exists, hence ask the user
 538         // how to proceed...
 539         KIO::RenameDialog renameDialog(this,
 540                                        i18n("File Already Exists"),
 541                                        source.path(),
 542                                        dest.path(),
 543                                        KIO::M_OVERWRITE);
 544         switch (renameDialog.exec()) {
 545             case KIO::R_OVERWRITE:
 546                 // the destination should be overwritten
 547                 ok = KIO::NetAccess::file_move(source, dest, -1, true);
 548                 break;
 549
 550             case KIO::R_RENAME: {
 551                 // a new name for the destination has been used
 552                 KUrl newDest(renameDialog.newDestUrl());
 553                 ok = KIO::NetAccess::file_move(source, newDest);
 554                 break;
 555             }
 556
 557             default:
 558                 // the renaming operation has been canceled
 559                 reload();
 560                 return;
 561         }
 562     }
 563     else {
 564         // no destination exists, hence just move the file to
 565         // do the renaming
 566         ok = KIO::NetAccess::file_move(source, dest);
 567     }
 568
 569     if (ok) {
 570         m_statusBar->setMessage(i18n("Renamed file '%1' to '%2'.",source.fileName(), dest.fileName()),
 571                                 DolphinStatusBar::OperationCompleted);
 572
 573         DolphinCommand command(DolphinCommand::Rename, source, dest);
 574         UndoManager::instance().addCommand(command);
 575     }
 576     else {
 577         m_statusBar->setMessage(i18n("Renaming of file '%1' to '%2' failed.",source.fileName(), dest.fileName()),
 578                                 DolphinStatusBar::Error);
 579         reload();
 580     }
 581 }
 582
 583 void DolphinView::reload()
 584 {
 585     startDirLister(m_urlNavigator->url(), true);
 586 }
 587
 588 void DolphinView::slotUrlListDropped(QDropEvent* /* event */,
 589                                      const KUrl::List& urls,
 590                                      const KUrl& url)
 591 {
 592     KUrl destination(url);
 593     if (destination.isEmpty()) {
 594         destination = m_urlNavigator->url();
 595     }
 596     else {
 597         // Check whether the destination Url is a directory. If this is not the
 598         // case, use the navigator Url as destination (otherwise the destination,
 599         // which represents a file, would be replaced by a copy- or move-operation).
 600         KFileItem fileItem(KFileItem::Unknown, KFileItem::Unknown, destination);
 601         if (!fileItem.isDir()) {
 602             destination = m_urlNavigator->url();
 603         }
 604     }
 605
 606     mainWindow()->dropUrls(urls, destination);
 607 }
 608
 609 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 610 {
 611     QWidget::mouseReleaseEvent(event);
 612     mainWindow()->setActiveView(this);
 613 }
 614
 615 DolphinMainWindow* DolphinView::mainWindow() const
 616 {
 617     return m_mainWindow;
 618 }
 619
 620 void DolphinView::loadDirectory(const KUrl& url)
 621 {
 622     const ViewProperties props(url);
 623
 624     const Mode mode = props.viewMode();
 625     if (m_mode != mode) {
 626         m_mode = mode;
 627         createView();
 628         emit modeChanged();
 629     }
 630
 631     const bool showHiddenFiles = props.showHiddenFiles();
 632     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 633         m_dirLister->setShowingDotFiles(showHiddenFiles);
 634         emit showHiddenFilesChanged();
 635     }
 636
 637     const DolphinView::Sorting sorting = props.sorting();
 638     if (sorting != m_proxyModel->sorting()) {
 639         m_proxyModel->setSorting(sorting);
 640         emit sortingChanged(sorting);
 641     }
 642
 643     const Qt::SortOrder sortOrder = props.sortOrder();
 644     if (sortOrder != m_proxyModel->sortOrder()) {
 645         m_proxyModel->setSortOrder(sortOrder);
 646         emit sortOrderChanged(sortOrder);
 647     }
 648
 649     // TODO: handle previews (props.showPreview())
 650
 651     startDirLister(url);
 652     emit urlChanged(url);
 653 }
 654
 655 void DolphinView::triggerItem(const QModelIndex& index)
 656 {
 657     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 658     if (item == 0) {
 659         return;
 660     }
 661
 662     if (item->isDir()) {
 663         // Prefer the local path over the Url. This assures that the
 664         // volume space information is correct. Assuming that the Url is media:/sda1,
 665         // and the local path is /windows/C: For the Url the space info is related
 666         // to the root partition (and hence wrong) and for the local path the space
 667         // info is related to the windows partition (-> correct).
 668         //m_dirLister->stop();
 669         //m_dirLister->openUrl(item->url());
 670         //return;
 671
 672         const QString localPath(item->localPath());
 673         if (localPath.isEmpty()) {
 674             setUrl(item->url());
 675         }
 676         else {
 677             setUrl(KUrl(localPath));
 678         }
 679     }
 680     else {
 681         item->run();
 682     }
 683 }
 684
 685 void DolphinView::slotPercent(int percent)
 686 {
 687     if (m_showProgress) {
 688         m_statusBar->setProgress(percent);
 689     }
 690 }
 691
 692 void DolphinView::slotClear()
 693 {
 694     //fileView()->clearView();
 695     updateStatusBar();
 696 }
 697
 698 void DolphinView::slotDeleteItem(KFileItem* item)
 699 {
 700     //fileView()->removeItem(item);
 701     updateStatusBar();
 702 }
 703
 704 void DolphinView::slotCompleted()
 705 {
 706     m_refreshing = true;
 707
 708     //KFileView* view = fileView();
 709     //view->clearView();
 710
 711     // TODO: in Qt4 the code should get a lot
 712     // simpler and nicer due to Interview...
 713     /*if (m_iconsView != 0) {
 714         m_iconsView->beginItemUpdates();
 715     }
 716     if (m_iconsView != 0) {
 717         m_iconsView->beginItemUpdates();
 718     }*/
 719
 720     if (m_showProgress) {
 721         m_statusBar->setProgressText(QString::null);
 722         m_statusBar->setProgress(100);
 723         m_showProgress = false;
 724     }
 725
 726     KFileItemList items(m_dirLister->items());
 727     KFileItemList::const_iterator it = items.begin();
 728     const KFileItemList::const_iterator end = items.end();
 729
 730     m_fileCount = 0;
 731     m_folderCount = 0;
 732
 733     while (it != end) {
 734         KFileItem* item = *it;
 735         //view->insertItem(item);
 736         if (item->isDir()) {
 737             ++m_folderCount;
 738         }
 739         else {
 740             ++m_fileCount;
 741         }
 742         ++it;
 743     }
 744
 745     updateStatusBar();
 746
 747     /*if (m_iconsView != 0) {
 748         // Prevent a flickering of the icon view widget by giving a small
 749         // timeslot to swallow asynchronous update events.
 750         m_iconsView->setUpdatesEnabled(false);
 751         QTimer::singleShot(10, this, SLOT(slotDelayedUpdate()));
 752     }
 753
 754     if (m_iconsView != 0) {
 755         m_iconsView->endItemUpdates();
 756         m_refreshing = false;
 757     }*/
 758 }
 759
 760 void DolphinView::slotInfoMessage(const QString& msg)
 761 {
 762     m_statusBar->setMessage(msg, DolphinStatusBar::Information);
 763 }
 764
 765 void DolphinView::slotErrorMessage(const QString& msg)
 766 {
 767     m_statusBar->setMessage(msg, DolphinStatusBar::Error);
 768 }
 769
 770 void DolphinView::slotGrabActivation()
 771 {
 772     mainWindow()->setActiveView(this);
 773 }
 774
 775 void DolphinView::emitSelectionChangedSignal()
 776 {
 777     emit selectionChanged();
 778 }
 779
 780 void DolphinView::closeFilterBar()
 781 {
 782     m_filterBar->hide();
 783     emit showFilterBarChanged(false);
 784 }
 785
 786 void DolphinView::slotContentsMoving(int x, int y)
 787 {
 788     if (!m_refreshing) {
 789         // Only emit a 'contents moved' signal if the user
 790         // moved the content by adjusting the sliders. Adjustments
 791         // resulted by refreshing a directory should not be respected.
 792         emit contentsMoved(x, y);
 793     }
 794 }
 795
 796 void DolphinView::startDirLister(const KUrl& url, bool reload)
 797 {
 798     if (!url.isValid()) {
 799         const QString location(url.pathOrUrl());
 800         if (location.isEmpty()) {
 801             m_statusBar->setMessage(i18n("The location is empty."), DolphinStatusBar::Error);
 802         }
 803         else {
 804             m_statusBar->setMessage(i18n("The location '%1' is invalid.",location),
 805                                     DolphinStatusBar::Error);
 806         }
 807         return;
 808     }
 809
 810     // Only show the directory loading progress if the status bar does
 811     // not contain another progress information. This means that
 812     // the directory loading progress information has the lowest priority.
 813     const QString progressText(m_statusBar->progressText());
 814     m_showProgress = progressText.isEmpty() ||
 815                      (progressText == i18n("Loading directory..."));
 816     if (m_showProgress) {
 817         m_statusBar->setProgressText(i18n("Loading directory..."));
 818         m_statusBar->setProgress(0);
 819     }
 820
 821     m_refreshing = true;
 822     m_dirLister->stop();
 823     m_dirLister->openUrl(url, false, reload);
 824 }
 825
 826 QString DolphinView::defaultStatusBarText() const
 827 {
 828     // TODO: the following code is not suitable for languages where multiple forms
 829     // of plurals are given (e. g. in Poland three forms of plurals exist).
 830     const int itemCount = m_folderCount + m_fileCount;
 831
 832     QString text;
 833     if (itemCount == 1) {
 834         text = i18n("1 Item");
 835     }
 836     else {
 837         text = i18n("%1 Items",itemCount);
 838     }
 839
 840     text += " (";
 841
 842     if (m_folderCount == 1) {
 843         text += i18n("1 Folder");
 844     }
 845     else {
 846         text += i18n("%1 Folders",m_folderCount);
 847     }
 848
 849     text += ", ";
 850
 851     if (m_fileCount == 1) {
 852         text += i18n("1 File");
 853     }
 854     else {
 855         text += i18n("%1 Files",m_fileCount);
 856     }
 857
 858     text += ")";
 859
 860     return text;
 861 }
 862
 863 QString DolphinView::selectionStatusBarText() const
 864 {
 865     // TODO: the following code is not suitable for languages where multiple forms
 866     // of plurals are given (e. g. in Poland three forms of plurals exist).
 867     QString text;
 868     const KFileItemList list = selectedItems();
 869     if (list.isEmpty()) {
 870         // TODO: assert(!list.isEmpty()) should be used, as this method is only invoked if
 871         // DolphinView::hasSelection() is true. Inconsistent behavior?
 872         return QString();
 873     }
 874
 875     int fileCount = 0;
 876     int folderCount = 0;
 877     KIO::filesize_t byteSize = 0;
 878     KFileItemList::const_iterator it = list.begin();
 879     const KFileItemList::const_iterator end = list.end();
 880     while (it != end){
 881         KFileItem* item = *it;
 882         if (item->isDir()) {
 883             ++folderCount;
 884         }
 885         else {
 886             ++fileCount;
 887             byteSize += item->size();
 888         }
 889         ++it;
 890     }
 891
 892     if (folderCount == 1) {
 893         text = i18n("1 Folder selected");
 894     }
 895     else if (folderCount > 1) {
 896         text = i18n("%1 Folders selected",folderCount);
 897     }
 898
 899     if ((fileCount > 0) && (folderCount > 0)) {
 900         text += ", ";
 901     }
 902
 903     const QString sizeText(KIO::convertSize(byteSize));
 904     if (fileCount == 1) {
 905         text += i18n("1 File selected (%1)",sizeText);
 906     }
 907     else if (fileCount > 1) {
 908         text += i18n("%1 Files selected (%1)",fileCount,sizeText);
 909     }
 910
 911     return text;
 912 }
 913
 914 QString DolphinView::renameIndexPresentation(int index, int itemCount) const
 915 {
 916     // assure that the string reprentation for all indicess have the same
 917     // number of characters based on the given number of items
 918     QString str(QString::number(index));
 919     int chrCount = 1;
 920     while (itemCount >= 10) {
 921         ++chrCount;
 922         itemCount /= 10;
 923     }
 924     str.reserve(chrCount);
 925
 926     const int insertCount = chrCount - str.length();
 927     for (int i = 0; i < insertCount; ++i) {
 928         str.insert(0, '0');
 929     }
 930     return str;
 931 }
 932
 933 void DolphinView::slotShowFilterBar(bool show)
 934 {
 935     assert(m_filterBar != 0);
 936     if (show) {
 937         m_filterBar->show();
 938     }
 939     else {
 940         m_filterBar->hide();
 941     }
 942 }
 943
 944 void DolphinView::declareViewActive()
 945 {
 946     mainWindow()->setActiveView( this );
 947 }
 948
 949 void DolphinView::slotChangeNameFilter(const QString& nameFilter)
 950 {
 951     // The name filter of KDirLister does a 'hard' filtering, which
 952     // means that only the items are shown where the names match
 953     // exactly the filter. This is non-transparent for the user, which
 954     // just wants to have a 'soft' filtering: does the name contain
 955     // the filter string?
 956     QString adjustedFilter(nameFilter);
 957     adjustedFilter.insert(0, '*');
 958     adjustedFilter.append('*');
 959
 960     // Use the ProxyModel to filter:
 961     // This code is #ifdefed as setNameFilter behaves
 962     // slightly different than the QSortFilterProxyModel
 963     // as it will not remove directories. I will ask
 964     // our beloved usability experts for input
 965     // -- z.
 966 #if 0
 967     m_dirLister->setNameFilter(adjustedFilter);
 968     m_dirLister->emitChanges();
 969 #else
 970     m_proxyModel->setFilterRegExp( nameFilter );
 971 #endif
 972 }
 973
 974 void DolphinView::createView()
 975 {
 976     // delete current view
 977     QAbstractItemView* view = itemView();
 978     if (view != 0) {
 979         m_topLayout->remove(view);
 980         view->close();
 981         view->deleteLater();
 982         m_iconsView = 0;
 983         m_detailsView = 0;
 984     }
 985
 986     assert(m_iconsView == 0);
 987     assert(m_detailsView == 0);
 988
 989     // ... and recreate it representing the current mode
 990     switch (m_mode) {
 991         case IconsView:
 992             m_iconsView = new DolphinIconsView(this);
 993             m_iconsView->setViewMode(QListView::IconMode);
 994             m_iconsView->setSpacing(32);
 995             view = m_iconsView;
 996             // TODO: read out view settings
 997             break;
 998
 999         case DetailsView:
1000             m_detailsView = new DolphinDetailsView(this);
1001             view = m_detailsView;
1002             // TODO: read out view settings
1003             break;
1004     }
1005
1006     view->setModel(m_proxyModel);
1007
1008     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1009
1010     KFileItemDelegate* delegate = new KFileItemDelegate(this);
1011     delegate->setAdditionalInformation(KFileItemDelegate::FriendlyMimeType);
1012     view->setItemDelegate(delegate);
1013
1014     new KMimeTypeResolver(view, m_dirModel);
1015
1016     connect(view, SIGNAL(clicked(const QModelIndex&)),
1017             this, SLOT(triggerItem(const QModelIndex&)));
1018     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1019             this, SLOT(emitSelectionChangedSignal()));
1020
1021     m_topLayout->insertWidget(1, view);
1022 }
1023
1024 int DolphinView::columnIndex(Sorting sorting) const
1025 {
1026     int index = 0;
1027     switch (sorting) {
1028         case SortByName: index = KDirModel::Name; break;
1029         case SortBySize: index = KDirModel::Size; break;
1030         case SortByDate: index = KDirModel::ModifiedTime; break;
1031         default: assert(false);
1032     }
1033     return index;
1034 }
1035
1036 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
1037 {
1038     QItemSelectionModel* selectionModel = itemView()->selectionModel();
1039     const QAbstractItemModel* itemModel = selectionModel->model();
1040
1041     const QModelIndex topLeft = itemModel->index(0, 0);
1042     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
1043                                                      itemModel->columnCount() - 1);
1044
1045     QItemSelection selection(topLeft, bottomRight);
1046     selectionModel->select(selection, flags);
1047 }
1048
1049 QAbstractItemView* DolphinView::itemView() const
1050 {
1051     assert((m_iconsView == 0) || (m_detailsView == 0));
1052     if (m_detailsView != 0) {
1053         return m_detailsView;
1054     }
1055     return m_iconsView;
1056 }
1057
1058 #include "dolphinview.moc"