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 const QList<UrlNavigator::HistoryElem> DolphinView::urlHistory(int& index) const
 458 {
 459     return m_urlNavigator->history(index);
 460 }
 461
 462 bool DolphinView::hasSelection() const
 463 {
 464     return itemView()->selectionModel()->hasSelection();
 465 }
 466
 467 void DolphinView::clearSelection()
 468 {
 469     itemView()->selectionModel()->clear();
 470 }
 471
 472 KFileItemList DolphinView::selectedItems() const
 473 {
 474     const QAbstractItemView* view = itemView();
 475
 476     // Our view has a selection, we will map them back to the DirModel
 477     // and then fill the KFileItemList.
 478     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 479
 480     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 481     KFileItemList itemList;
 482
 483     const QModelIndexList indexList = selection.indexes();
 484     QModelIndexList::const_iterator end = indexList.end();
 485     for (QModelIndexList::const_iterator it = indexList.begin(); it != end; ++it) {
 486         Q_ASSERT((*it).isValid());
 487
 488         KFileItem* item = m_dirModel->itemForIndex(*it);
 489         if (item != 0) {
 490             itemList.append(item);
 491         }
 492     }
 493
 494     return itemList;
 495 }
 496
 497 KUrl::List DolphinView::selectedUrls() const
 498 {
 499     KUrl::List urls;
 500
 501     const KFileItemList list = selectedItems();
 502     KFileItemList::const_iterator it = list.begin();
 503     const KFileItemList::const_iterator end = list.end();
 504     while (it != end) {
 505         KFileItem* item = *it;
 506         urls.append(item->url());
 507         ++it;
 508     }
 509
 510     return urls;
 511 }
 512
 513 KFileItem* DolphinView::fileItem(const QModelIndex index) const
 514 {
 515     const QModelIndex dirModelIndex = m_proxyModel->mapToSource(index);
 516     return m_dirModel->itemForIndex(dirModelIndex);
 517 }
 518
 519 void DolphinView::rename(const KUrl& source, const QString& newName)
 520 {
 521     bool ok = false;
 522
 523     if (newName.isEmpty() || (source.fileName() == newName)) {
 524         return;
 525     }
 526
 527     KUrl dest(source.upUrl());
 528     dest.addPath(newName);
 529
 530     const bool destExists = KIO::NetAccess::exists(dest,
 531                                                    false,
 532                                                    mainWindow()->activeView());
 533     if (destExists) {
 534         // the destination already exists, hence ask the user
 535         // how to proceed...
 536         KIO::RenameDialog renameDialog(this,
 537                                        i18n("File Already Exists"),
 538                                        source.path(),
 539                                        dest.path(),
 540                                        KIO::M_OVERWRITE);
 541         switch (renameDialog.exec()) {
 542             case KIO::R_OVERWRITE:
 543                 // the destination should be overwritten
 544                 ok = KIO::NetAccess::file_move(source, dest, -1, true);
 545                 break;
 546
 547             case KIO::R_RENAME: {
 548                 // a new name for the destination has been used
 549                 KUrl newDest(renameDialog.newDestUrl());
 550                 ok = KIO::NetAccess::file_move(source, newDest);
 551                 break;
 552             }
 553
 554             default:
 555                 // the renaming operation has been canceled
 556                 reload();
 557                 return;
 558         }
 559     }
 560     else {
 561         // no destination exists, hence just move the file to
 562         // do the renaming
 563         ok = KIO::NetAccess::file_move(source, dest);
 564     }
 565
 566     const QString destFileName = dest.fileName();
 567     if (ok) {
 568         m_statusBar->setMessage(i18n("Renamed file '%1' to '%2'.",source.fileName(), destFileName),
 569                                 DolphinStatusBar::OperationCompleted);
 570
 571         KonqOperations::rename(this, source, destFileName);
 572     }
 573     else {
 574         m_statusBar->setMessage(i18n("Renaming of file '%1' to '%2' failed.",source.fileName(), destFileName),
 575                                 DolphinStatusBar::Error);
 576         reload();
 577     }
 578 }
 579
 580 void DolphinView::reload()
 581 {
 582     startDirLister(m_urlNavigator->url(), true);
 583 }
 584
 585 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 586 {
 587     QWidget::mouseReleaseEvent(event);
 588     mainWindow()->setActiveView(this);
 589 }
 590
 591 DolphinMainWindow* DolphinView::mainWindow() const
 592 {
 593     return m_mainWindow;
 594 }
 595
 596 void DolphinView::loadDirectory(const KUrl& url)
 597 {
 598     if(!isActive()) {
 599         requestActivation();
 600     }
 601
 602     const ViewProperties props(url);
 603
 604     const Mode mode = props.viewMode();
 605     if (m_mode != mode) {
 606         m_mode = mode;
 607         createView();
 608         emit modeChanged();
 609     }
 610
 611     const bool showHiddenFiles = props.showHiddenFiles();
 612     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
 613         m_dirLister->setShowingDotFiles(showHiddenFiles);
 614         emit showHiddenFilesChanged();
 615     }
 616
 617     const DolphinView::Sorting sorting = props.sorting();
 618     if (sorting != m_proxyModel->sorting()) {
 619         m_proxyModel->setSorting(sorting);
 620         emit sortingChanged(sorting);
 621     }
 622
 623     const Qt::SortOrder sortOrder = props.sortOrder();
 624     if (sortOrder != m_proxyModel->sortOrder()) {
 625         m_proxyModel->setSortOrder(sortOrder);
 626         emit sortOrderChanged(sortOrder);
 627     }
 628
 629     KFileItemDelegate::AdditionalInformation info = props.additionalInfo();
 630     if (info != m_fileItemDelegate->additionalInformation()) {
 631         m_fileItemDelegate->setAdditionalInformation(info);
 632
 633         emit additionalInfoChanged(info);
 634     }
 635
 636     const bool showPreview = props.showPreview();
 637     if (showPreview != m_controller->showPreview()) {
 638         m_controller->setShowPreview(showPreview);
 639         emit showPreviewChanged();
 640     }
 641
 642     startDirLister(url);
 643     emit urlChanged(url);
 644
 645     m_statusBar->clear();
 646 }
 647
 648 void DolphinView::triggerItem(const QModelIndex& index)
 649 {
 650     if (!isValidNameIndex(index)) {
 651         return;
 652     }
 653
 654     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 655     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 656         // items are selected by the user, hence don't trigger the
 657         // item specified by 'index'
 658         return;
 659     }
 660
 661     KFileItem* item = m_dirModel->itemForIndex(m_proxyModel->mapToSource(index));
 662     if (item == 0) {
 663         return;
 664     }
 665
 666     // Prefer the local path over the URL. This assures that the
 667     // volume space information is correct. Assuming that the URL is media:/sda1,
 668     // and the local path is /windows/C: For the URL the space info is related
 669     // to the root partition (and hence wrong) and for the local path the space
 670     // info is related to the windows partition (-> correct).
 671     const QString localPath(item->localPath());
 672     KUrl url;
 673     if (localPath.isEmpty()) {
 674         url = item->url();
 675     }
 676     else {
 677         url = localPath;
 678     }
 679
 680     if (item->isDir()) {
 681         setUrl(url);
 682     }
 683     else if (item->isFile()) {
 684         // allow to browse through ZIP and tar files
 685         KMimeType::Ptr mime = item->mimeTypePtr();
 686         if (mime->is("application/zip")) {
 687             url.setProtocol("zip");
 688             setUrl(url);
 689         }
 690         else if (mime->is("application/x-tar") ||
 691                  mime->is("application/x-tarz") ||
 692                  mime->is("application/x-bzip-compressed-tar") ||
 693                  mime->is("application/x-compressed-tar") ||
 694                  mime->is("application/x-tzo")) {
 695             url.setProtocol("tar");
 696             setUrl(url);
 697         }
 698         else {
 699             item->run();
 700         }
 701     }
 702     else {
 703         item->run();
 704     }
 705 }
 706
 707 void DolphinView::updateProgress(int percent)
 708 {
 709     if (m_showProgress) {
 710         m_statusBar->setProgress(percent);
 711     }
 712 }
 713
 714 void DolphinView::updateItemCount()
 715 {
 716     if (m_showProgress) {
 717         m_statusBar->setProgressText(QString());
 718         m_statusBar->setProgress(100);
 719         m_showProgress = false;
 720     }
 721
 722     KFileItemList items(m_dirLister->items());
 723     KFileItemList::const_iterator it = items.begin();
 724     const KFileItemList::const_iterator end = items.end();
 725
 726     m_fileCount = 0;
 727     m_folderCount = 0;
 728
 729     while (it != end) {
 730         KFileItem* item = *it;
 731         if (item->isDir()) {
 732             ++m_folderCount;
 733         }
 734         else {
 735             ++m_fileCount;
 736         }
 737         ++it;
 738     }
 739
 740     updateStatusBar();
 741
 742     m_blockContentsMovedSignal = false;
 743     QTimer::singleShot(0, this, SLOT(restoreContentsPos()));
 744 }
 745
 746 void DolphinView::generatePreviews(const KFileItemList& items)
 747 {
 748     if (m_controller->showPreview()) {
 749         KIO::PreviewJob* job = KIO::filePreview(items, 128);
 750         connect(job, SIGNAL(gotPreview(const KFileItem*, const QPixmap&)),
 751                 this, SLOT(showPreview(const KFileItem*, const QPixmap&)));
 752     }
 753 }
 754
 755 void DolphinView::showPreview(const KFileItem* item, const QPixmap& pixmap)
 756 {
 757     Q_ASSERT(item != 0);
 758     const QModelIndex idx = m_dirModel->indexForItem(*item);
 759     if (idx.isValid() && (idx.column() == 0)) {
 760         const QMimeData* mimeData = QApplication::clipboard()->mimeData();
 761         if (KonqMimeData::decodeIsCutSelection(mimeData) && isCutItem(*item)) {
 762             KIconEffect iconEffect;
 763             const QPixmap cutPixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
 764             m_dirModel->setData(idx, QIcon(cutPixmap), Qt::DecorationRole);
 765         }
 766         else {
 767             m_dirModel->setData(idx, QIcon(pixmap), Qt::DecorationRole);
 768         }
 769     }
 770 }
 771
 772 void DolphinView::restoreContentsPos()
 773 {
 774     int index = 0;
 775     const QList<UrlNavigator::HistoryElem> history = urlHistory(index);
 776     if (!history.isEmpty()) {
 777         QAbstractItemView* view = itemView();
 778         // TODO: view->setCurrentItem(history[index].currentFileName());
 779
 780         const UrlNavigator::HistoryElem& it = history[index];
 781         view->horizontalScrollBar()->setValue(it.contentsX());
 782         view->verticalScrollBar()->setValue(it.contentsY());
 783     }
 784 }
 785
 786 void DolphinView::showInfoMessage(const QString& msg)
 787 {
 788     m_statusBar->setMessage(msg, DolphinStatusBar::Information);
 789 }
 790
 791 void DolphinView::showErrorMessage(const QString& msg)
 792 {
 793     m_statusBar->setMessage(msg, DolphinStatusBar::Error);
 794 }
 795
 796 void DolphinView::emitSelectionChangedSignal()
 797 {
 798     emit selectionChanged(DolphinView::selectedItems());
 799 }
 800
 801 void DolphinView::closeFilterBar()
 802 {
 803     m_filterBar->hide();
 804     emit showFilterBarChanged(false);
 805 }
 806
 807 void DolphinView::startDirLister(const KUrl& url, bool reload)
 808 {
 809     if (!url.isValid()) {
 810         const QString location(url.pathOrUrl());
 811         if (location.isEmpty()) {
 812             m_statusBar->setMessage(i18n("The location is empty."), DolphinStatusBar::Error);
 813         }
 814         else {
 815             m_statusBar->setMessage(i18n("The location '%1' is invalid.",location),
 816                                     DolphinStatusBar::Error);
 817         }
 818         return;
 819     }
 820
 821     // Only show the directory loading progress if the status bar does
 822     // not contain another progress information. This means that
 823     // the directory loading progress information has the lowest priority.
 824     const QString progressText(m_statusBar->progressText());
 825     m_showProgress = progressText.isEmpty() ||
 826                      (progressText == i18n("Loading directory..."));
 827     if (m_showProgress) {
 828         m_statusBar->setProgressText(i18n("Loading directory..."));
 829         m_statusBar->setProgress(0);
 830     }
 831
 832     m_cutItemsCache.clear();
 833     m_blockContentsMovedSignal = true;
 834     m_dirLister->stop();
 835     m_dirLister->openUrl(url, false, reload);
 836 }
 837
 838 QString DolphinView::defaultStatusBarText() const
 839 {
 840     return KIO::itemsSummaryString(m_fileCount + m_folderCount,
 841                                    m_fileCount,
 842                                    m_folderCount,
 843                                    0, false);
 844 }
 845
 846 QString DolphinView::selectionStatusBarText() const
 847 {
 848     QString text;
 849     const KFileItemList list = selectedItems();
 850     if (list.isEmpty()) {
 851         // when an item is triggered, it is temporary selected but selectedItems()
 852         // will return an empty list
 853         return QString();
 854     }
 855
 856     int fileCount = 0;
 857     int folderCount = 0;
 858     KIO::filesize_t byteSize = 0;
 859     KFileItemList::const_iterator it = list.begin();
 860     const KFileItemList::const_iterator end = list.end();
 861     while (it != end){
 862         KFileItem* item = *it;
 863         if (item->isDir()) {
 864             ++folderCount;
 865         }
 866         else {
 867             ++fileCount;
 868             byteSize += item->size();
 869         }
 870         ++it;
 871     }
 872
 873     if (folderCount > 0) {
 874         text = i18np("1 Folder selected", "%1 Folders selected", folderCount);
 875         if (fileCount > 0) {
 876             text += ", ";
 877         }
 878     }
 879
 880     if (fileCount > 0) {
 881         const QString sizeText(KIO::convertSize(byteSize));
 882         text += i18np("1 File selected (%2)", "%1 Files selected (%2)", fileCount, sizeText);
 883     }
 884
 885     return text;
 886 }
 887
 888 void DolphinView::showFilterBar(bool show)
 889 {
 890     Q_ASSERT(m_filterBar != 0);
 891     if (show) {
 892         m_filterBar->show();
 893     }
 894     else {
 895         m_filterBar->hide();
 896     }
 897 }
 898
 899 void DolphinView::updateStatusBar()
 900 {
 901     // As the item count information is less important
 902     // in comparison with other messages, it should only
 903     // be shown if:
 904     // - the status bar is empty or
 905     // - shows already the item count information or
 906     // - shows only a not very important information
 907     // - if any progress is given don't show the item count info at all
 908     const QString msg(m_statusBar->message());
 909     const bool updateStatusBarMsg = (msg.isEmpty() ||
 910                                      (msg == m_statusBar->defaultText()) ||
 911                                      (m_statusBar->type() == DolphinStatusBar::Information)) &&
 912                                     (m_statusBar->progress() == 100);
 913
 914     const QString text(hasSelection() ? selectionStatusBarText() : defaultStatusBarText());
 915     m_statusBar->setDefaultText(text);
 916
 917     if (updateStatusBarMsg) {
 918         m_statusBar->setMessage(text, DolphinStatusBar::Default);
 919     }
 920 }
 921
 922 void DolphinView::requestActivation()
 923 {
 924     m_mainWindow->setActiveView(this);
 925 }
 926
 927 void DolphinView::changeSelection(const KFileItemList& selection)
 928 {
 929     clearSelection();
 930     if (selection.isEmpty()) {
 931         return;
 932     }
 933     KUrl baseUrl = url();
 934     KUrl url;
 935     QItemSelection new_selection;
 936     foreach (KFileItem* item, selection) {
 937         url = item->url().upUrl();
 938         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 939             QModelIndex index = m_proxyModel->mapFromSource(m_dirModel->indexForItem(*item));
 940             new_selection.select(index, index);
 941         }
 942     }
 943     itemView()->selectionModel()->select(new_selection,
 944                                          QItemSelectionModel::ClearAndSelect
 945                                          | QItemSelectionModel::Current);
 946 }
 947
 948 void DolphinView::changeNameFilter(const QString& nameFilter)
 949 {
 950     // The name filter of KDirLister does a 'hard' filtering, which
 951     // means that only the items are shown where the names match
 952     // exactly the filter. This is non-transparent for the user, which
 953     // just wants to have a 'soft' filtering: does the name contain
 954     // the filter string?
 955     QString adjustedFilter(nameFilter);
 956     adjustedFilter.insert(0, '*');
 957     adjustedFilter.append('*');
 958
 959     // Use the ProxyModel to filter:
 960     // This code is #ifdefed as setNameFilter behaves
 961     // slightly different than the QSortFilterProxyModel
 962     // as it will not remove directories. I will ask
 963     // our beloved usability experts for input
 964     // -- z.
 965 #if 0
 966     m_dirLister->setNameFilter(adjustedFilter);
 967     m_dirLister->emitChanges();
 968 #else
 969     m_proxyModel->setFilterRegExp( nameFilter );
 970 #endif
 971 }
 972
 973 void DolphinView::openContextMenu(const QPoint& pos)
 974 {
 975     KFileItem* item = 0;
 976
 977     const QModelIndex index = itemView()->indexAt(pos);
 978     if (isValidNameIndex(index)) {
 979         item = fileItem(index);
 980     }
 981
 982     DolphinContextMenu contextMenu(m_mainWindow, item, url());
 983     contextMenu.open();
 984 }
 985
 986 void DolphinView::dropUrls(const KUrl::List& urls,
 987                            const QModelIndex& index,
 988                            QWidget* source)
 989 {
 990     KFileItem* directory = 0;
 991     if (isValidNameIndex(index)) {
 992         KFileItem* item = fileItem(index);
 993         Q_ASSERT(item != 0);
 994         if (item->isDir()) {
 995             // the URLs are dropped above a directory
 996             directory = item;
 997         }
 998     }
 999
1000     if ((directory == 0) && (source == itemView())) {
1001         // The dropping is done into the same viewport where
1002         // the dragging has been started. Just ignore this...
1003         return;
1004     }
1005
1006     const KUrl& destination = (directory == 0) ? url() :
1007                                                  directory->url();
1008     dropUrls(urls, destination);
1009 }
1010
1011 void DolphinView::dropUrls(const KUrl::List& urls,
1012                            const KUrl& destination)
1013 {
1014     m_mainWindow->dropUrls(urls, destination);
1015 }
1016
1017 void DolphinView::updateSorting(DolphinView::Sorting sorting)
1018 {
1019     ViewProperties props(url());
1020     props.setSorting(sorting);
1021
1022     m_proxyModel->setSorting(sorting);
1023
1024     emit sortingChanged(sorting);
1025 }
1026
1027 void DolphinView::updateSortOrder(Qt::SortOrder order)
1028 {
1029     ViewProperties props(url());
1030     props.setSortOrder(order);
1031
1032     m_proxyModel->setSortOrder(order);
1033
1034     emit sortOrderChanged(order);
1035 }
1036
1037 void DolphinView::emitContentsMoved()
1038 {
1039     if (!m_blockContentsMovedSignal) {
1040         emit contentsMoved(contentsX(), contentsY());
1041     }
1042 }
1043
1044 void DolphinView::updateActivationState()
1045 {
1046     m_urlNavigator->setActive(isActive());
1047     if(isActive()) {
1048         emit urlChanged(url());
1049         emit selectionChanged(selectedItems());
1050     }
1051 }
1052
1053 void DolphinView::updateCutItems()
1054 {
1055     // restore the icons of all previously selected items to the
1056     // original state...
1057     QList<CutItem>::const_iterator it = m_cutItemsCache.begin();
1058     QList<CutItem>::const_iterator end = m_cutItemsCache.end();
1059     while (it != end) {
1060         const QModelIndex index = m_dirModel->indexForUrl((*it).url);
1061         if (index.isValid()) {
1062             m_dirModel->setData(index, QIcon((*it).pixmap), Qt::DecorationRole);
1063         }
1064         ++it;
1065     }
1066     m_cutItemsCache.clear();
1067
1068     // ... and apply an item effect to all currently cut items
1069     applyCutItemEffect();
1070 }
1071
1072 void DolphinView::createView()
1073 {
1074     // delete current view
1075     QAbstractItemView* view = itemView();
1076     if (view != 0) {
1077         m_topLayout->removeWidget(view);
1078         view->close();
1079         view->deleteLater();
1080         view = 0;
1081         m_iconsView = 0;
1082         m_detailsView = 0;
1083         m_fileItemDelegate = 0;
1084     }
1085
1086     Q_ASSERT(m_iconsView == 0);
1087     Q_ASSERT(m_detailsView == 0);
1088
1089     // ... and recreate it representing the current mode
1090     switch (m_mode) {
1091         case IconsView:
1092             m_iconsView = new DolphinIconsView(this, m_controller);
1093             view = m_iconsView;
1094             break;
1095
1096         case DetailsView:
1097             m_detailsView = new DolphinDetailsView(this, m_controller);
1098             view = m_detailsView;
1099             break;
1100     }
1101
1102     Q_ASSERT(view != 0);
1103
1104     m_fileItemDelegate = new KFileItemDelegate(view);
1105     view->setItemDelegate(m_fileItemDelegate);
1106
1107     view->setModel(m_proxyModel);
1108     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1109
1110     new KMimeTypeResolver(view, m_dirModel);
1111     m_topLayout->insertWidget(1, view);
1112
1113     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1114             m_controller, SLOT(indicateSelectionChange()));
1115     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1116             this, SLOT(emitContentsMoved()));
1117     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1118             this, SLOT(emitContentsMoved()));
1119 }
1120
1121 void DolphinView::selectAll(QItemSelectionModel::SelectionFlags flags)
1122 {
1123     QItemSelectionModel* selectionModel = itemView()->selectionModel();
1124     const QAbstractItemModel* itemModel = selectionModel->model();
1125
1126     const QModelIndex topLeft = itemModel->index(0, 0);
1127     const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
1128                                                      itemModel->columnCount() - 1);
1129
1130     QItemSelection selection(topLeft, bottomRight);
1131     selectionModel->select(selection, flags);
1132 }
1133
1134 QAbstractItemView* DolphinView::itemView() const
1135 {
1136     Q_ASSERT((m_iconsView == 0) || (m_detailsView == 0));
1137     if (m_detailsView != 0) {
1138         return m_detailsView;
1139     }
1140     return m_iconsView;
1141 }
1142
1143 bool DolphinView::isValidNameIndex(const QModelIndex& index) const
1144 {
1145     return index.isValid() && (index.column() == KDirModel::Name);
1146 }
1147
1148 bool DolphinView::isCutItem(const KFileItem& item) const
1149 {
1150     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1151     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1152
1153     const KUrl& itemUrl = item.url();
1154     KUrl::List::const_iterator it = cutUrls.begin();
1155     const KUrl::List::const_iterator end = cutUrls.end();
1156     while (it != end){
1157         if (*it == itemUrl) {
1158             return true;
1159         }
1160         ++it;
1161     }
1162
1163     return false;
1164 }
1165
1166 void DolphinView::applyCutItemEffect()
1167 {
1168     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1169     if (!KonqMimeData::decodeIsCutSelection(mimeData)) {
1170         return;
1171     }
1172
1173     KFileItemList items(m_dirLister->items());
1174     KFileItemList::const_iterator it = items.begin();
1175     const KFileItemList::const_iterator end = items.end();
1176     while (it != end) {
1177         KFileItem* item = *it;
1178         if (isCutItem(*item)) {
1179             const QModelIndex index = m_dirModel->indexForItem(*item);
1180             const KFileItem* item = m_dirModel->itemForIndex(index);
1181             const QVariant value = m_dirModel->data(index, Qt::DecorationRole);
1182             if ((value.type() == QVariant::Icon) && (item != 0)) {
1183                 const QIcon icon(qvariant_cast<QIcon>(value));
1184                 QPixmap pixmap = icon.pixmap(128, 128);
1185
1186                 // remember current pixmap for the item to be able
1187                 // to restore it when other items get cut
1188                 CutItem cutItem;
1189                 cutItem.url = item->url();
1190                 cutItem.pixmap = pixmap;
1191                 m_cutItemsCache.append(cutItem);
1192
1193                 // apply icon effect to the cut item
1194                 KIconEffect iconEffect;
1195                 pixmap = iconEffect.apply(pixmap, K3Icon::Desktop, K3Icon::DisabledState);
1196                 m_dirModel->setData(index, QIcon(pixmap), Qt::DecorationRole);
1197             }
1198         }
1199         ++it;
1200     }
1201 }
1202
1203 #include "dolphinview.moc"