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