src/dolphinview.cpp

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