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 <klocale.h>
  35 #include <kiconeffect.h>
  36 #include <kio/netaccess.h>
  37 #include <kio/renamedialog.h>
  38 #include <kio/previewjob.h>
  39 #include <kmimetyperesolver.h>
  40 #include <konqmimedata.h>
  41 #include <konq_operations.h>
  42 #include <kurl.h>
  43
  44 #include "dolphincolumnview.h"
  45 #include "dolphincontroller.h"
  46 #include "dolphinstatusbar.h"
  47 #include "dolphinmainwindow.h"
  48 #include "dolphindirlister.h"
  49 #include "dolphinsortfilterproxymodel.h"
  50 #include "dolphindetailsview.h"
  51 #include "dolphiniconsview.h"
  52 #include "dolphincontextmenu.h"
  53 #include "filterbar.h"
  54 #include "renamedialog.h"
  55 #include "urlnavigator.h"
  56 #include "viewproperties.h"
  57 #include "dolphinsettings.h"
  58 #include "dolphin_generalsettings.h"
  59
  60 DolphinView::DolphinView(DolphinMainWindow* mainWindow,
  61                          QWidget* parent,
  62                          const KUrl& url,
  63                          Mode mode,
  64                          bool showHiddenFiles) :
  65     QWidget(parent),
  66     m_showProgress(false),
  67     m_blockContentsMovedSignal(false),
  68     m_mode(mode),
  69     m_iconSize(0),
  70     m_folderCount(0),
  71     m_fileCount(0),
  72     m_mainWindow(mainWindow),
  73     m_topLayout(0),
  74     m_urlNavigator(0),
  75     m_controller(0),
  76     m_iconsView(0),
  77     m_detailsView(0),
  78     m_columnView(0),
  79     m_fileItemDelegate(0),
  80     m_filterBar(0),
  81     m_statusBar(0),
  82     m_dirModel(0),
  83     m_dirLister(0),
  84     m_proxyModel(0)
  85 {
  86     hide();
  87     setFocusPolicy(Qt::StrongFocus);
  88     m_topLayout = new QVBoxLayout(this);
  89     m_topLayout->setSpacing(0);
  90     m_topLayout->setMargin(0);
  91
  92     connect(m_mainWindow, SIGNAL(activeViewChanged()),
  93             this, SLOT(updateActivationState()));
  94
  95     QClipboard* clipboard = QApplication::clipboard();
  96     connect(clipboard, SIGNAL(dataChanged()),
  97             this, SLOT(updateCutItems()));
  98
  99     m_urlNavigator = new UrlNavigator(DolphinSettings::instance().bookmarkManager(), url, this);
 100     m_urlNavigator->setUrlEditable(DolphinSettings::instance().generalSettings()->editableUrl());
 101     m_urlNavigator->setHomeUrl(DolphinSettings::instance().generalSettings()->homeUrl());
 102     m_urlNavigator->setShowHiddenFiles(showHiddenFiles);
 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(storeContentsPosition(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     m_urlNavigator->setShowHiddenFiles(show);
 249
 250     emit showHiddenFilesChanged();
 251
 252     reload();
 253 }
 254
 255 bool DolphinView::showHiddenFiles() const
 256 {
 257     return m_dirLister->showingDotFiles();
 258 }
 259
 260 void DolphinView::renameSelectedItems()
 261 {
 262     DolphinView* view = mainWindow()->activeView();
 263     const KUrl::List urls = selectedUrls();
 264     if (urls.count() > 1) {
 265         // More than one item has been selected for renaming. Open
 266         // a rename dialog and rename all items afterwards.
 267         RenameDialog dialog(urls);
 268         if (dialog.exec() == QDialog::Rejected) {
 269             return;
 270         }
 271
 272         const QString& newName = dialog.newName();
 273         if (newName.isEmpty()) {
 274             view->statusBar()->setMessage(dialog.errorString(),
 275                                           DolphinStatusBar::Error);
 276         }
 277         else {
 278             // TODO: check how this can be integrated into KonqUndoManager/KonqOperations
 279             // as one operation instead of n rename operations like it is done now...
 280             Q_ASSERT(newName.contains('#'));
 281
 282             // iterate through all selected items and rename them...
 283             const int replaceIndex = newName.indexOf('#');
 284             Q_ASSERT(replaceIndex >= 0);
 285             int index = 1;
 286
 287             KUrl::List::const_iterator it = urls.begin();
 288             KUrl::List::const_iterator end = urls.end();
 289             while (it != end) {
 290                 const KUrl& oldUrl = *it;
 291                 QString number;
 292                 number.setNum(index++);
 293
 294                 QString name(newName);
 295                 name.replace(replaceIndex, 1, number);
 296
 297                 if (oldUrl.fileName() != name) {
 298                     KUrl newUrl = oldUrl;
 299                     newUrl.setFileName(name);
 300                     m_mainWindow->rename(oldUrl, newUrl);
 301                 }
 302                 ++it;
 303             }
 304         }
 305     }
 306     else {
 307         // Only one item has been selected for renaming. Use the custom
 308         // renaming mechanism from the views.
 309         Q_ASSERT(urls.count() == 1);
 310
 311         // TODO: Think about using KFileItemDelegate as soon as it supports editing.
 312         // Currently the RenameDialog is used, but I'm not sure whether inline renaming
 313         // is a benefit for the user at all -> let's wait for some input first...
 314         RenameDialog dialog(urls);
 315         if (dialog.exec() == QDialog::Rejected) {
 316             return;
 317         }
 318
 319         const QString& newName = dialog.newName();
 320         if (newName.isEmpty()) {
 321             view->statusBar()->setMessage(dialog.errorString(),
 322                                           DolphinStatusBar::Error);
 323         }
 324         else {
 325             const KUrl& oldUrl = urls.first();
 326             KUrl newUrl = oldUrl;
 327             newUrl.setFileName(newName);
 328             m_mainWindow->rename(oldUrl, newUrl);
 329         }
 330     }
 331 }
 332
 333 void DolphinView::selectAll()
 334 {
 335     selectAll(QItemSelectionModel::Select);
 336 }
 337
 338 void DolphinView::invertSelection()
 339 {
 340     selectAll(QItemSelectionModel::Toggle);
 341 }
 342
 343 DolphinStatusBar* DolphinView::statusBar() const
 344 {
 345     return m_statusBar;
 346 }
 347
 348 int DolphinView::contentsX() const
 349 {
 350     return itemView()->horizontalScrollBar()->value();
 351 }
 352
 353 int DolphinView::contentsY() const
 354 {
 355     return itemView()->verticalScrollBar()->value();
 356 }
 357
 358 void DolphinView::emitRequestItemInfo(const KUrl& url)
 359 {
 360     emit requestItemInfo(url);
 361 }
 362
 363 bool DolphinView::isFilterBarVisible() const
 364 {
 365   return m_filterBar->isVisible();
 366 }
 367
 368 bool DolphinView::isUrlEditable() const
 369 {
 370     return m_urlNavigator->isUrlEditable();
 371 }
 372
 373 void DolphinView::zoomIn()
 374 {
 375     m_controller->triggerZoomIn();
 376 }
 377
 378 void DolphinView::zoomOut()
 379 {
 380     m_controller->triggerZoomOut();
 381 }
 382
 383 bool DolphinView::isZoomInPossible() const
 384 {
 385     return m_controller->isZoomInPossible();
 386 }
 387
 388 bool DolphinView::isZoomOutPossible() const
 389 {
 390     return m_controller->isZoomOutPossible();
 391 }
 392
 393 void DolphinView::setSorting(Sorting sorting)
 394 {
 395     if (sorting != this->sorting()) {
 396         updateSorting(sorting);
 397     }
 398 }
 399
 400 DolphinView::Sorting DolphinView::sorting() const
 401 {
 402     return m_proxyModel->sorting();
 403 }
 404
 405 void DolphinView::setSortOrder(Qt::SortOrder order)
 406 {
 407     if (sortOrder() != order) {
 408         updateSortOrder(order);
 409     }
 410 }
 411
 412 Qt::SortOrder DolphinView::sortOrder() const
 413 {
 414     return m_proxyModel->sortOrder();
 415 }
 416
 417 void DolphinView::setAdditionalInfo(KFileItemDelegate::AdditionalInformation info)
 418 {
 419     ViewProperties props(m_urlNavigator->url());
 420     props.setAdditionalInfo(info);
 421
 422     m_fileItemDelegate->setAdditionalInformation(info);
 423
 424     emit additionalInfoChanged(info);
 425     reload();
 426 }
 427
 428 KFileItemDelegate::AdditionalInformation DolphinView::additionalInfo() const
 429 {
 430     return m_fileItemDelegate->additionalInformation();
 431 }
 432
 433 void DolphinView::goBack()
 434 {
 435     m_urlNavigator->goBack();
 436 }
 437
 438 void DolphinView::goForward()
 439 {
 440     m_urlNavigator->goForward();
 441 }
 442
 443 void DolphinView::goUp()
 444 {
 445     m_urlNavigator->goUp();
 446 }
 447
 448 void DolphinView::goHome()
 449 {
 450     m_urlNavigator->goHome();
 451 }
 452
 453 void DolphinView::setUrlEditable(bool editable)
 454 {
 455     m_urlNavigator->setUrlEditable(editable);
 456 }
 457
 458 bool DolphinView::hasSelection() const
 459 {
 460     return itemView()->selectionModel()->hasSelection();
 461 }
 462
 463 void DolphinView::clearSelection()
 464 {
 465     itemView()->selectionModel()->clear();
 466 }
 467
 468 KFileItemList DolphinView::selectedItems() const
 469 {
 470     const QAbstractItemView* view = itemView();
 471
 472     // Our view has a selection, we will map them back to the DirModel
 473     // and then fill the KFileItemList.
 474     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 475
 476     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 477     KFileItemList itemList;
 478
 479     const QModelIndexList indexList = selection.indexes();
 480     QModelIndexList::const_iterator end = indexList.end();
 481     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 482         Q_ASSERT((*it).isValid());
 483
 484         KFileItem* item = m_dirModel->itemForIndex(*it);
 485         if (item != 0) {
 486             itemList.append(item);
 487         }
 488     }
 489
 490     return itemList;
 491 }
 492
 493 KUrl::List DolphinView::selectedUrls() const
 494 {
 495     KUrl::List urls;
 496
 497     const KFileItemList list = selectedItems();
 498     KFileItemList::const_iterator it = list.begin();
 499     const KFileItemList::const_iterator end = list.end();
 500     while (it != end) {
 501         KFileItem* item = *it;
 502         urls.append(item->url());
 503         ++it;
 504     }
 505
 506     return urls;
 507 }
 508
 509 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 510 {
 511     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 512     return m_dirModel->itemForIndex(dirModelIndex);
 513 }
 514
 515 void DolphinView::rename(const KUrl& source, const QString& newName)
 516 {
 517     bool ok = false;
 518
 519     if (newName.isEmpty() || (source.fileName() == newName)) {
 520         return;
 521     }
 522
 523     KUrl dest(source.upUrl());
 524     dest.addPath(newName);
 525
 526     const bool destExists = KIO::NetAccess::exists(dest,
 527                                                    false,
 528                                                    mainWindow()->activeView());
 529     if (destExists) {
 530         // the destination already exists, hence ask the user
 531         // how to proceed...
 532         KIO::RenameDialog renameDialog(this,
 533                                        i18n("File Already Exists"),
 534                                        source.path(),
 535                                        dest.path(),
 536                                        KIO::M_OVERWRITE);
 537         switch (renameDialog.exec()) {
 538             case KIO::R_OVERWRITE:
 539                 // the destination should be overwritten
 540                 ok = KIO::NetAccess::file_move(source, dest, -1, true);
 541                 break;
 542
 543             case KIO::R_RENAME: {
 544                 // a new name for the destination has been used
 545                 KUrl newDest(renameDialog.newDestUrl());
 546                 ok = KIO::NetAccess::file_move(source, newDest);
 547                 break;
 548             }
 549
 550             default:
 551                 // the renaming operation has been canceled
 552                 reload();
 553                 return;
 554         }
 555     }
 556     else {
 557         // no destination exists, hence just move the file to
 558         // do the renaming
 559         ok = KIO::NetAccess::file_move(source, dest);
 560     }
 561
 562     const QString destFileName = dest.fileName();
 563     if (ok) {
 564         m_statusBar->setMessage(i18n("Renamed file '%1' to '%2'.",source.fileName(), destFileName),
 565                                 DolphinStatusBar::OperationCompleted);
 566
 567         KonqOperations::rename(this, source, destFileName);
 568     }
 569     else {
 570         m_statusBar->setMessage(i18n("Renaming of file '%1' to '%2' failed.",source.fileName(), destFileName),
 571                                 DolphinStatusBar::Error);
 572         reload();
 573     }
 574 }
 575
 576 void DolphinView::reload()
 577 {
 578     startDirLister(m_urlNavigator->url(), true);
 579 }
 580
 581 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 582 {
 583     QWidget::mouseReleaseEvent(event);
 584     mainWindow()->setActiveView(this);
 585 }
 586
 587 DolphinMainWindow* DolphinView::mainWindow() const
 588 {
 589     return m_mainWindow;
 590 }
 591
 592 void DolphinView::loadDirectory(const KUrl& url)
 593 {
 594     if(!isActive()) {
 595         requestActivation();
 596     }
 597
 598     const ViewProperties props(url);
 599
 600     const Mode mode = props.viewMode();
 601     bool changeMode = (m_mode != mode);
 602     if (changeMode && isColumnViewActive()) {
 603         // The column view is active. Only change the
 604         // mode if the current URL is no child of the column view.
 605         if (m_dirLister->url().isParentOf(url)) {
 606             changeMode = false;
 607         }
 608     }
 609
 610     if (changeMode) {
 611         m_mode = mode;
 612         createView();
 613         emit modeChanged();
 614     }
 615
 616     const bool showHiddenFiles = props.showHiddenFiles();
 617     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 618         m_dirLister->setShowingDotFiles(showHiddenFiles);
 619         emit showHiddenFilesChanged();
 620     }
 621
 622     const DolphinView::Sorting sorting = props.sorting();
 623     if (sorting != m_proxyModel->sorting()) {
 624         m_proxyModel->setSorting(sorting);
 625         emit sortingChanged(sorting);
 626     }
 627
 628     const Qt::SortOrder sortOrder = props.sortOrder();
 629     if (sortOrder != m_proxyModel->sortOrder()) {
 630         m_proxyModel->setSortOrder(sortOrder);
 631         emit sortOrderChanged(sortOrder);
 632     }
 633
 634     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 635     if (info != m_fileItemDelegate->additionalInformation()) {
 636         m_fileItemDelegate->setAdditionalInformation(info);
 637
 638         emit additionalInfoChanged(info);
 639     }
 640
 641     const bool showPreview = props.showPreview();
 642     if (showPreview != m_controller->showPreview()) {
 643         m_controller->setShowPreview(showPreview);
 644         emit showPreviewChanged();
 645     }
 646
 647     startDirLister(url);
 648     emit urlChanged(url);
 649
 650     m_statusBar->clear();
 651 }
 652
 653 void DolphinView::triggerItem(const QModelIndex& index)
 654 {
 655     if (!isValidNameIndex(index)) {
 656         return;
 657     }
 658
 659     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 660     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 661         // items are selected by the user, hence don't trigger the
 662         // item specified by 'index'
 663         return;
 664     }
 665
 666     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 667     if (item == 0) {
 668         return;
 669     }
 670
 671     // Prefer the local path over the URL. This assures that the
 672     // volume space information is correct. Assuming that the URL is media:/sda1,
 673     // and the local path is /windows/C: For the URL the space info is related
 674     // to the root partition (and hence wrong) and for the local path the space
 675     // info is related to the windows partition (-> correct).
 676     const QString localPath(item->localPath());
 677     KUrl url;
 678     if (localPath.isEmpty()) {
 679         url = item->url();
 680     }
 681     else {
 682         url = localPath;
 683     }
 684
 685     if (item->isDir()) {
 686         setUrl(url);
 687     }
 688     else if (item->isFile()) {
 689         // allow to browse through ZIP and tar files
 690         KMimeType::Ptr mime = item->mimeTypePtr();
 691         if (mime->is("application/zip")) {
 692             url.setProtocol("zip");
 693             setUrl(url);
 694         }
 695         else if (mime->is("application/x-tar") ||
 696                  mime->is("application/x-tarz") ||
 697                  mime->is("application/x-bzip-compressed-tar") ||
 698                  mime->is("application/x-compressed-tar") ||
 699                  mime->is("application/x-tzo")) {
 700             url.setProtocol("tar");
 701             setUrl(url);
 702         }
 703         else {
 704             item->run();
 705         }
 706     }
 707     else {
 708         item->run();
 709     }
 710 }
 711
 712 void DolphinView::updateProgress(int percent)
 713 {
 714     if (m_showProgress) {
 715         m_statusBar->setProgress(percent);
 716     }
 717 }
 718
 719 void DolphinView::updateItemCount()
 720 {
 721     if (m_showProgress) {
 722         m_statusBar->setProgressText(QString());
 723         m_statusBar->setProgress(100);
 724         m_showProgress = false;
 725     }
 726
 727     KFileItemList items(m_dirLister->items());
 728     KFileItemList::const_iterator it = items.begin();
 729     const KFileItemList::const_iterator end = items.end();
 730
 731     m_fileCount = 0;
 732     m_folderCount = 0;
 733
 734     while (it != end) {
 735         KFileItem* item = *it;
 736         if (item->isDir()) {
 737             ++m_folderCount;
 738         }
 739         else {
 740             ++m_fileCount;
 741         }
 742         ++it;
 743     }
 744
 745     updateStatusBar();
 746
 747     m_blockContentsMovedSignal = false;
 748     QTimer::singleShot(0, this, SLOT(restoreContentsPos()));
 749 }
 750
 751 void DolphinView::generatePreviews(const KFileItemList& items)
 752 {
 753     if (m_controller->showPreview()) {
 754         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 755         connect(job, SIGNAL(gotPreview(const KFileItem*, const QPixmap&)),
 756                 this, SLOT(showPreview(const KFileItem*, const QPixmap&)));
 757     }
 758 }
 759
 760 void DolphinView::showPreview(const KFileItem* item, const QPixmap& pixmap)
 761 {
 762     Q_ASSERT(item != 0);
 763     const QModelIndex idx = m_dirModel->indexForItem(*item);
 764     if (idx.isValid() && (idx.column() == 0)) {
 765         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 766         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(*item)) {
 767             KIconEffect iconEffect;
 768             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 769             m_dirModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 770         }
 771         else {
 772             m_dirModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 773         }
 774     }
 775 }
 776
 777 void DolphinView::restoreContentsPos()
 778 {
 779     KUrl currentUrl = m_urlNavigator->url();
 780     if (!currentUrl.isEmpty()) {
 781         QAbstractItemView* view = itemView();
 782         // TODO: view->setCurrentItem(m_urlNavigator->currentFileName());
 783         QPoint pos = m_urlNavigator->savedPosition();
 784         view->horizontalScrollBar()->setValue(pos.x());
 785         view->verticalScrollBar()->setValue(pos.y());
 786     }
 787 }
 788
 789 void DolphinView::showInfoMessage(const QString& msg)
 790 {
 791     m_statusBar->setMessage(msg, DolphinStatusBar::Information);
 792 }
 793
 794 void DolphinView::showErrorMessage(const QString& msg)
 795 {
 796     m_statusBar->setMessage(msg, DolphinStatusBar::Error);
 797 }
 798
 799 void DolphinView::emitSelectionChangedSignal()
 800 {
 801     emit selectionChanged(DolphinView::selectedItems());
 802 }
 803
 804 void DolphinView::closeFilterBar()
 805 {
 806     m_filterBar->hide();
 807     emit showFilterBarChanged(false);
 808 }
 809
 810 void DolphinView::startDirLister(const KUrl& url, bool reload)
 811 {
 812     if (!url.isValid()) {
 813         const QString location(url.pathOrUrl());
 814         if (location.isEmpty()) {
 815             m_statusBar->setMessage(i18n("The location is empty."), DolphinStatusBar::Error);
 816         }
 817         else {
 818             m_statusBar->setMessage(i18n("The location '%1' is invalid.",location),
 819                                     DolphinStatusBar::Error);
 820         }
 821         return;
 822     }
 823
 824     // Only show the directory loading progress if the status bar does
 825     // not contain another progress information. This means that
 826     // the directory loading progress information has the lowest priority.
 827     const QString progressText(m_statusBar->progressText());
 828     m_showProgress = progressText.isEmpty() ||
 829                      (progressText == i18n("Loading directory..."));
 830     if (m_showProgress) {
 831         m_statusBar->setProgressText(i18n("Loading directory..."));
 832         m_statusBar->setProgress(0);
 833     }
 834
 835     m_cutItemsCache.clear();
 836     m_blockContentsMovedSignal = true;
 837     m_dirLister->stop();
 838
 839     bool openDir = true;
 840     bool keepOldDirs = isColumnViewActive();
 841     if (keepOldDirs) {
 842         if (reload) {
 843             keepOldDirs = false;
 844
 845             const KUrl& dirListerUrl = m_dirLister->url();
 846             if (dirListerUrl.isValid()) {
 847                 const KUrl::List dirs = m_dirLister->directories();
 848                 KUrl url;
 849                 foreach (url, dirs) {
 850                     m_dirLister->updateDirectory(url);
 851                 }
 852                 openDir = false;
 853             }
 854         }
 855         else if (m_dirLister->directories().contains(url)) {
 856             // The dir lister contains the directory already, so
 857             // KDirLister::openUrl() may not been invoked twice.
 858             m_dirLister->updateDirectory(url);
 859             openDir = false;
 860         }
 861         else {
 862             const KUrl& dirListerUrl = m_dirLister->url();
 863             if ((dirListerUrl == url) || !m_dirLister->url().isParentOf(url)) {
 864                 // The current URL is not a child of the dir lister
 865                 // URL. This may happen when e. g. a bookmark has been selected
 866                 // and hence the view must be reset.
 867                 keepOldDirs = false;
 868             }
 869         }
 870     }
 871
 872     if (openDir) {
 873         m_dirLister->openUrl(url, keepOldDirs, reload);
 874     }
 875 }
 876
 877 QString DolphinView::defaultStatusBarText() const
 878 {
 879     return KIO::itemsSummaryString(m_fileCount + m_folderCount,
 880                                    m_fileCount,
 881                                    m_folderCount,
 882                                    0, false);
 883 }
 884
 885 QString DolphinView::selectionStatusBarText() const
 886 {
 887     QString text;
 888     const KFileItemList list = selectedItems();
 889     if (list.isEmpty()) {
 890         // when an item is triggered, it is temporary selected but selectedItems()
 891         // will return an empty list
 892         return QString();
 893     }
 894
 895     int fileCount = 0;
 896     int folderCount = 0;
 897     KIO::filesize_t byteSize = 0;
 898     KFileItemList::const_iterator it = list.begin();
 899     const KFileItemList::const_iterator end = list.end();
 900     while (it != end){
 901         KFileItem* item = *it;
 902         if (item->isDir()) {
 903             ++folderCount;
 904         }
 905         else {
 906             ++fileCount;
 907             byteSize += item->size();
 908         }
 909         ++it;
 910     }
 911
 912     if (folderCount > 0) {
 913         text = i18np("1 Folder selected", "%1 Folders selected", folderCount);
 914         if (fileCount > 0) {
 915             text += ", ";
 916         }
 917     }
 918
 919     if (fileCount > 0) {
 920         const QString sizeText(KIO::convertSize(byteSize));
 921         text += i18np("1 File selected (%2)", "%1 Files selected (%2)", fileCount, sizeText);
 922     }
 923
 924     return text;
 925 }
 926
 927 void DolphinView::showFilterBar(bool show)
 928 {
 929     Q_ASSERT(m_filterBar != 0);
 930     if (show) {
 931         m_filterBar->show();
 932     }
 933     else {
 934         m_filterBar->hide();
 935     }
 936 }
 937
 938 void DolphinView::updateStatusBar()
 939 {
 940     // As the item count information is less important
 941     // in comparison with other messages, it should only
 942     // be shown if:
 943     // - the status bar is empty or
 944     // - shows already the item count information or
 945     // - shows only a not very important information
 946     // - if any progress is given don't show the item count info at all
 947     const QString msg(m_statusBar->message());
 948     const bool updateStatusBarMsg = (msg.isEmpty() ||
 949                                      (msg == m_statusBar->defaultText()) ||
 950                                      (m_statusBar->type() == DolphinStatusBar::Information)) &&
 951                                     (m_statusBar->progress() == 100);
 952
 953     const QString text(hasSelection() ? selectionStatusBarText() : defaultStatusBarText());
 954     m_statusBar->setDefaultText(text);
 955
 956     if (updateStatusBarMsg) {
 957         m_statusBar->setMessage(text, DolphinStatusBar::Default);
 958     }
 959 }
 960
 961 void DolphinView::requestActivation()
 962 {
 963     m_mainWindow->setActiveView(this);
 964 }
 965
 966 void DolphinView::changeSelection(const KFileItemList& selection)
 967 {
 968     clearSelection();
 969     if (selection.isEmpty()) {
 970         return;
 971     }
 972     KUrl baseUrl = url();
 973     KUrl url;
 974     QItemSelection new_selection;
 975     foreach (KFileItem* item, selection) {
 976         url = item->url().upUrl();
 977         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 978             QModelIndex index = m_proxyModel->mapFromSource(m_dirModel->indexForItem(*item));
 979             new_selection.select(index, index);
 980         }
 981     }
 982     itemView()->selectionModel()->select(new_selection,
 983                                          QItemSelectionModel::ClearAndSelect
 984                                          | QItemSelectionModel::Current);
 985 }
 986
 987 void DolphinView::changeNameFilter(const QString& nameFilter)
 988 {
 989     // The name filter of KDirLister does a 'hard' filtering, which
 990     // means that only the items are shown where the names match
 991     // exactly the filter. This is non-transparent for the user, which
 992     // just wants to have a 'soft' filtering: does the name contain
 993     // the filter string?
 994     QString adjustedFilter(nameFilter);
 995     adjustedFilter.insert(0, '*');
 996     adjustedFilter.append('*');
 997
 998     // Use the ProxyModel to filter:
 999     // This code is #ifdefed as setNameFilter behaves
1000     // slightly different than the QSortFilterProxyModel
1001     // as it will not remove directories. I will ask
1002     // our beloved usability experts for input
1003     // -- z.
1004 #if 0
1005     m_dirLister->setNameFilter(adjustedFilter);
1006     m_dirLister->emitChanges();
1007 #else
1008     m_proxyModel->setFilterRegExp( nameFilter );
1009 #endif
1010 }
1011
1012 void DolphinView::openContextMenu(const QPoint& pos)
1013 {
1014     KFileItem* item = 0;
1015
1016     const QModelIndex index = itemView()->indexAt(pos);
1017     if (isValidNameIndex(index)) {
1018         item = fileItem(index);
1019     }
1020
1021     DolphinContextMenu contextMenu(m_mainWindow, item, url());
1022     contextMenu.open();
1023 }
1024
1025 void DolphinView::dropUrls(const KUrl::List& urls,
1026                            const QModelIndex& index,
1027                            QWidget* source)
1028 {
1029     KFileItem* directory = 0;
1030     if (isValidNameIndex(index)) {
1031         KFileItem* item = fileItem(index);
1032         Q_ASSERT(item != 0);
1033         if (item->isDir()) {
1034             // the URLs are dropped above a directory
1035             directory = item;
1036         }
1037     }
1038
1039     if ((directory == 0) && (source == itemView())) {
1040         // The dropping is done into the same viewport where
1041         // the dragging has been started. Just ignore this...
1042         return;
1043     }
1044
1045     const KUrl& destination = (directory == 0) ? url() :
1046                                                  directory->url();
1047     dropUrls(urls, destination);
1048 }
1049
1050 void DolphinView::dropUrls(const KUrl::List& urls,
1051                            const KUrl& destination)
1052 {
1053     m_mainWindow->dropUrls(urls, destination);
1054 }
1055
1056 void DolphinView::updateSorting(DolphinView::Sorting sorting)
1057 {
1058     ViewProperties props(url());
1059     props.setSorting(sorting);
1060
1061     m_proxyModel->setSorting(sorting);
1062
1063     emit sortingChanged(sorting);
1064 }
1065
1066 void DolphinView::updateSortOrder(Qt::SortOrder order)
1067 {
1068     ViewProperties props(url());
1069     props.setSortOrder(order);
1070
1071     m_proxyModel->setSortOrder(order);
1072
1073     emit sortOrderChanged(order);
1074 }
1075
1076 void DolphinView::emitContentsMoved()
1077 {
1078     if (!m_blockContentsMovedSignal) {
1079         emit contentsMoved(contentsX(), contentsY());
1080     }
1081 }
1082
1083 void DolphinView::updateActivationState()
1084 {
1085     m_urlNavigator->setActive(isActive());
1086     if(isActive()) {
1087         emit urlChanged(url());
1088         emit selectionChanged(selectedItems());
1089     }
1090 }
1091
1092 void DolphinView::updateCutItems()
1093 {
1094     // restore the icons of all previously selected items to the
1095     // original state...
1096     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
1097     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
1098     while (it != end) {
1099         const QModelIndex index = m_dirModel->indexForUrl((*it).url);
1100         if (index.isValid()) {
1101             m_dirModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
1102         }
1103         ++it;
1104     }
1105     m_cutItemsCache.clear();
1106
1107     // ... and apply an item effect to all currently cut items
1108     applyCutItemEffect();
1109 }
1110
1111 void DolphinView::createView()
1112 {
1113     // delete current view
1114     QAbstractItemView* view = itemView();
1115     if (view != 0) {
1116         m_topLayout->removeWidget(view);
1117         view->close();
1118         view->deleteLater();
1119         view = 0;
1120         m_iconsView = 0;
1121         m_detailsView = 0;
1122         m_columnView = 0;
1123         m_fileItemDelegate = 0;
1124     }
1125
1126     Q_ASSERT(m_iconsView == 0);
1127     Q_ASSERT(m_detailsView == 0);
1128     Q_ASSERT(m_columnView == 0);
1129
1130     // ... and recreate it representing the current mode
1131     switch (m_mode) {
1132         case IconsView:
1133             m_iconsView = new DolphinIconsView(this, m_controller);
1134             view = m_iconsView;
1135             break;
1136
1137         case DetailsView:
1138             m_detailsView = new DolphinDetailsView(this, m_controller);
1139             view = m_detailsView;
1140             break;
1141
1142         case ColumnView:
1143             m_columnView = new DolphinColumnView(this, m_controller);
1144             view = m_columnView;
1145             break;
1146     }
1147
1148     Q_ASSERT(view != 0);
1149
1150     m_fileItemDelegate = new KFileItemDelegate(view);
1151     view->setItemDelegate(m_fileItemDelegate);
1152
1153     view->setModel(m_proxyModel);
1154     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1155
1156     new KMimeTypeResolver(view, m_dirModel);
1157     m_topLayout->insertWidget(1, view);
1158
1159     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1160             m_controller, SLOT(indicateSelectionChange()));
1161     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1162             this, SLOT(emitContentsMoved()));
1163     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1164             this, SLOT(emitContentsMoved()));
1165 }
1166
1167 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
1168 {
1169     QItemSelectionModel* selectionModel = itemView()->selectionModel();
1170     const QAbstractItemModel* itemModel = selectionModel->model();
1171
1172     const QModelIndex topLeft = itemModel->index(0, 0);
1173     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
1174                                                      itemModel->columnCount() - 1);
1175
1176     QItemSelection selection(topLeft, bottomRight);
1177     selectionModel->select(selection, flags);
1178 }
1179
1180 QAbstractItemView* DolphinView::itemView() const
1181 {
1182     if (m_detailsView != 0) {
1183         return m_detailsView;
1184     }
1185     else if (m_columnView != 0) {
1186         return m_columnView;
1187     }
1188
1189     return m_iconsView;
1190 }
1191
1192 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
1193 {
1194     return index.isValid() && (index.column() == KDirModel::Name);
1195 }
1196
1197 bool DolphinView::isCutItem(const KFileItem& item) const
1198 {
1199     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1200     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1201
1202     const KUrl& itemUrl = item.url();
1203     KUrl::List::const_iterator it = cutUrls.begin();
1204     const KUrl::List::const_iterator end = cutUrls.end();
1205     while (it != end){
1206         if (*it == itemUrl) {
1207             return true;
1208         }
1209         ++it;
1210     }
1211
1212     return false;
1213 }
1214
1215 void DolphinView::applyCutItemEffect()
1216 {
1217     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1218     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
1219         return;
1220     }
1221
1222     KFileItemList items(m_dirLister->items());
1223     KFileItemList::const_iterator it = items.begin();
1224     const KFileItemList::const_iterator end = items.end();
1225     while (it != end) {
1226         KFileItem* item = *it;
1227         if (isCutItem(*item)) {
1228             const QModelIndex index = m_dirModel->indexForItem(*item);
1229             const KFileItem* item = m_dirModel->itemForIndex(index);
1230             const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
1231             if ((value.type() == QVariant::Icon) && (item != 0)) {
1232                 const QIcon icon(qvariant_cast<QIcon>(value));
1233                 QPixmap pixmap = icon.pixmap(128, 128);
1234
1235                 // remember current pixmap for the item to be able
1236                 // to restore it when other items get cut
1237                 CutItem cutItem;
1238                 cutItem.url = item->url();
1239                 cutItem.pixmap = pixmap;
1240                 m_cutItemsCache.append(cutItem);
1241
1242                 // apply icon effect to the cut item
1243                 KIconEffect iconEffect;
1244                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
1245                 m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
1246             }
1247         }
1248         ++it;
1249     }
1250 }
1251
1252 #include "dolphinview.moc"