src/dolphinview.cpp

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