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 <QKeyEvent>
  26 #include <QItemSelection>
  27 #include <QBoxLayout>
  28 #include <QTimer>
  29 #include <QScrollBar>
  30
  31 #include <kactioncollection.h>
  32 #include <kcolorscheme.h>
  33 #include <kdirlister.h>
  34 #include <kfileitemdelegate.h>
  35 #include <kfilepreviewgenerator.h>
  36 #include <kiconeffect.h>
  37 #include <klocale.h>
  38 #include <kio/deletejob.h>
  39 #include <kio/netaccess.h>
  40 #include <kio/previewjob.h>
  41 #include <kjob.h>
  42 #include <kmenu.h>
  43 #include <kmessagebox.h>
  44 #include <kmimetyperesolver.h>
  45 #include <konq_fileitemcapabilities.h>
  46 #include <konq_operations.h>
  47 #include <konqmimedata.h>
  48 #include <ktoggleaction.h>
  49 #include <kurl.h>
  50
  51 #include "dolphindropcontroller.h"
  52 #include "dolphinmodel.h"
  53 #include "dolphincolumnview.h"
  54 #include "dolphincontroller.h"
  55 #include "dolphinsortfilterproxymodel.h"
  56 #include "dolphindetailsview.h"
  57 #include "dolphin_detailsmodesettings.h"
  58 #include "dolphiniconsview.h"
  59 #include "dolphinsettings.h"
  60 #include "dolphin_generalsettings.h"
  61 #include "folderexpander.h"
  62 #include "renamedialog.h"
  63 #include "tooltipmanager.h"
  64 #include "viewproperties.h"
  65 #include "zoomlevelinfo.h"
  66
  67 DolphinView::DolphinView(QWidget* parent,
  68                          const KUrl& url,
  69                          KDirLister* dirLister,
  70                          DolphinModel* dolphinModel,
  71                          DolphinSortFilterProxyModel* proxyModel) :
  72     QWidget(parent),
  73     m_active(true),
  74     m_showPreview(false),
  75     m_loadingDirectory(false),
  76     m_storedCategorizedSorting(false),
  77     m_tabsForFiles(false),
  78     m_isContextMenuOpen(false),
  79     m_mode(DolphinView::IconsView),
  80     m_topLayout(0),
  81     m_controller(0),
  82     m_iconsView(0),
  83     m_detailsView(0),
  84     m_columnView(0),
  85     m_fileItemDelegate(0),
  86     m_selectionModel(0),
  87     m_dolphinModel(dolphinModel),
  88     m_dirLister(dirLister),
  89     m_proxyModel(proxyModel),
  90     m_previewGenerator(0),
  91     m_toolTipManager(0),
  92     m_rootUrl(),
  93     m_currentItemUrl()
  94 {
  95     m_topLayout = new QVBoxLayout(this);
  96     m_topLayout->setSpacing(0);
  97     m_topLayout->setMargin(0);
  98
  99     m_controller = new DolphinController(this);
 100     m_controller->setUrl(url);
 101
 102     connect(m_controller, SIGNAL(urlChanged(const KUrl&)),
 103             this, SIGNAL(urlChanged(const KUrl&)));
 104     connect(m_controller, SIGNAL(requestUrlChange(const KUrl&)),
 105             this, SLOT(slotRequestUrlChange(const KUrl&)));
 106
 107     connect(m_controller, SIGNAL(requestContextMenu(const QPoint&)),
 108             this, SLOT(openContextMenu(const QPoint&)));
 109     connect(m_controller, SIGNAL(urlsDropped(const KFileItem&, const KUrl&, QDropEvent*)),
 110             this, SLOT(dropUrls(const KFileItem&, const KUrl&, QDropEvent*)));
 111     connect(m_controller, SIGNAL(sortingChanged(DolphinView::Sorting)),
 112             this, SLOT(updateSorting(DolphinView::Sorting)));
 113     connect(m_controller, SIGNAL(sortOrderChanged(Qt::SortOrder)),
 114             this, SLOT(updateSortOrder(Qt::SortOrder)));
 115     connect(m_controller, SIGNAL(additionalInfoChanged(const KFileItemDelegate::InformationList&)),
 116             this, SLOT(updateAdditionalInfo(const KFileItemDelegate::InformationList&)));
 117     connect(m_controller, SIGNAL(itemTriggered(const KFileItem&)),
 118             this, SLOT(triggerItem(const KFileItem&)));
 119     connect(m_controller, SIGNAL(tabRequested(const KUrl&)),
 120             this, SIGNAL(tabRequested(const KUrl&)));
 121     connect(m_controller, SIGNAL(activated()),
 122             this, SLOT(activate()));
 123     connect(m_controller, SIGNAL(itemEntered(const KFileItem&)),
 124             this, SLOT(showHoverInformation(const KFileItem&)));
 125     connect(m_controller, SIGNAL(viewportEntered()),
 126             this, SLOT(clearHoverInformation()));
 127
 128     connect(m_dirLister, SIGNAL(redirection(KUrl, KUrl)),
 129             this, SLOT(slotRedirection(KUrl, KUrl)));
 130     connect(m_dirLister, SIGNAL(completed()),
 131             this, SLOT(restoreCurrentItem()));
 132
 133     applyViewProperties(url);
 134     m_topLayout->addWidget(itemView());
 135 }
 136
 137 DolphinView::~DolphinView()
 138 {
 139 }
 140
 141 const KUrl& DolphinView::url() const
 142 {
 143     return m_controller->url();
 144 }
 145
 146 KUrl DolphinView::rootUrl() const
 147 {
 148     return isColumnViewActive() ? m_columnView->rootUrl() : url();
 149 }
 150
 151 void DolphinView::setActive(bool active)
 152 {
 153     if (active == m_active) {
 154         return;
 155     }
 156
 157     m_active = active;
 158
 159     QColor color = KColorScheme(QPalette::Active, KColorScheme::View).background().color();
 160     if (active) {
 161         // TODO: emitting urlChanged() is a hack, as the URL hasn't really changed. It
 162         // bypasses the problem when having a split view and changing the active view to
 163         // update the some URL dependent states. A nicer approach should be no big deal...
 164         emit urlChanged(url());
 165         emit selectionChanged(selectedItems());
 166     } else {
 167         color.setAlpha(150);
 168     }
 169
 170     QWidget* viewport = itemView()->viewport();
 171     QPalette palette;
 172     palette.setColor(viewport->backgroundRole(), color);
 173     viewport->setPalette(palette);
 174
 175     update();
 176
 177     if (active) {
 178         itemView()->setFocus();
 179         emit activated();
 180     }
 181
 182     m_controller->indicateActivationChange(active);
 183 }
 184
 185 bool DolphinView::isActive() const
 186 {
 187     return m_active;
 188 }
 189
 190 void DolphinView::setMode(Mode mode)
 191 {
 192     if (mode == m_mode) {
 193         return; // the wished mode is already set
 194     }
 195
 196     m_mode = mode;
 197
 198     deleteView();
 199
 200     const KUrl viewPropsUrl = viewPropertiesUrl();
 201     ViewProperties props(viewPropsUrl);
 202     props.setViewMode(m_mode);
 203     createView();
 204
 205     // the file item delegate has been recreated, apply the current
 206     // additional information manually
 207     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 208     m_fileItemDelegate->setShowInformation(infoList);
 209     emit additionalInfoChanged();
 210
 211     // Not all view modes support categorized sorting. Adjust the sorting model
 212     // if changing the view mode results in a change of the categorized sorting
 213     // capabilities.
 214     m_storedCategorizedSorting = props.categorizedSorting();
 215     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 216     if (categorized != m_proxyModel->isCategorizedModel()) {
 217         m_proxyModel->setCategorizedModel(categorized);
 218         emit categorizedSortingChanged();
 219     }
 220
 221     emit modeChanged();
 222 }
 223
 224 DolphinView::Mode DolphinView::mode() const
 225 {
 226     return m_mode;
 227 }
 228
 229 bool DolphinView::showPreview() const
 230 {
 231     return m_showPreview;
 232 }
 233
 234 bool DolphinView::showHiddenFiles() const
 235 {
 236     return m_dirLister->showingDotFiles();
 237 }
 238
 239 bool DolphinView::categorizedSorting() const
 240 {
 241     // If all view modes would support categorized sorting, returning
 242     // m_proxyModel->isCategorizedModel() would be the way to go. As
 243     // currently only the icons view supports caterized sorting, we remember
 244     // the stored view properties state in m_storedCategorizedSorting and
 245     // return this state. The application takes care to disable the corresponding
 246     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 247     // that this setting is not applied to the current view mode.
 248     return m_storedCategorizedSorting;
 249 }
 250
 251 bool DolphinView::supportsCategorizedSorting() const
 252 {
 253     return m_iconsView != 0;
 254 }
 255
 256 void DolphinView::selectAll()
 257 {
 258     QAbstractItemView* view = itemView();
 259     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 260     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 261     // selection instead of selecting all items. This is bypassed for KDE 4.0
 262     // by invoking clearSelection() first.
 263     view->clearSelection();
 264     view->selectAll();
 265 }
 266
 267 void DolphinView::invertSelection()
 268 {
 269     if (isColumnViewActive()) {
 270         // QAbstractItemView does not offer a virtual method invertSelection()
 271         // as counterpart to QAbstractItemView::selectAll(). This makes it
 272         // necessary to delegate the inverting of the selection to the
 273         // column view, as only the selection of the active column should
 274         // get inverted.
 275         m_columnView->invertSelection();
 276     } else {
 277         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 278         const QAbstractItemModel* itemModel = selectionModel->model();
 279
 280         const QModelIndex topLeft = itemModel->index(0, 0);
 281         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 282                                                          itemModel->columnCount() - 1);
 283
 284         const QItemSelection selection(topLeft, bottomRight);
 285         selectionModel->select(selection, QItemSelectionModel::Toggle);
 286     }
 287 }
 288
 289 bool DolphinView::hasSelection() const
 290 {
 291     return itemView()->selectionModel()->hasSelection();
 292 }
 293
 294 void DolphinView::clearSelection()
 295 {
 296     itemView()->selectionModel()->clear();
 297 }
 298
 299 KFileItemList DolphinView::selectedItems() const
 300 {
 301     if (isColumnViewActive()) {
 302         return m_columnView->selectedItems();
 303     }
 304
 305     const QAbstractItemView* view = itemView();
 306
 307     // Our view has a selection, we will map them back to the DolphinModel
 308     // and then fill the KFileItemList.
 309     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 310
 311     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 312     KFileItemList itemList;
 313
 314     const QModelIndexList indexList = selection.indexes();
 315     foreach (const QModelIndex &index, indexList) {
 316         KFileItem item = m_dolphinModel->itemForIndex(index);
 317         if (!item.isNull()) {
 318             itemList.append(item);
 319         }
 320     }
 321
 322     return itemList;
 323 }
 324
 325 KUrl::List DolphinView::selectedUrls() const
 326 {
 327     KUrl::List urls;
 328     const KFileItemList list = selectedItems();
 329     foreach (const KFileItem &item, list) {
 330         urls.append(item.url());
 331     }
 332     return urls;
 333 }
 334
 335 int DolphinView::selectedItemsCount() const
 336 {
 337     if (isColumnViewActive()) {
 338         // TODO: get rid of this special case by adjusting the dir lister
 339         // to the current column
 340         return m_columnView->selectedItems().count();
 341     }
 342
 343     return itemView()->selectionModel()->selection().count();
 344 }
 345
 346 void DolphinView::setContentsPosition(int x, int y)
 347 {
 348     QAbstractItemView* view = itemView();
 349
 350     // the ColumnView takes care itself for the horizontal scrolling
 351     if (!isColumnViewActive()) {
 352         view->horizontalScrollBar()->setValue(x);
 353     }
 354     view->verticalScrollBar()->setValue(y);
 355
 356     m_loadingDirectory = false;
 357 }
 358
 359 QPoint DolphinView::contentsPosition() const
 360 {
 361     const int x = itemView()->horizontalScrollBar()->value();
 362     const int y = itemView()->verticalScrollBar()->value();
 363     return QPoint(x, y);
 364 }
 365
 366 void DolphinView::setZoomLevel(int level)
 367 {
 368     if (level < ZoomLevelInfo::minimumLevel()) {
 369         level = ZoomLevelInfo::minimumLevel();
 370     } else if (level > ZoomLevelInfo::maximumLevel()) {
 371         level = ZoomLevelInfo::maximumLevel();
 372     }
 373
 374     if (level != zoomLevel()) {
 375         m_controller->setZoomLevel(level);
 376         m_previewGenerator->updatePreviews();
 377         emit zoomLevelChanged(level);
 378     }
 379 }
 380
 381 int DolphinView::zoomLevel() const
 382 {
 383     return m_controller->zoomLevel();
 384 }
 385
 386 void DolphinView::setSorting(Sorting sorting)
 387 {
 388     if (sorting != this->sorting()) {
 389         updateSorting(sorting);
 390     }
 391 }
 392
 393 DolphinView::Sorting DolphinView::sorting() const
 394 {
 395     return m_proxyModel->sorting();
 396 }
 397
 398 void DolphinView::setSortOrder(Qt::SortOrder order)
 399 {
 400     if (sortOrder() != order) {
 401         updateSortOrder(order);
 402     }
 403 }
 404
 405 Qt::SortOrder DolphinView::sortOrder() const
 406 {
 407     return m_proxyModel->sortOrder();
 408 }
 409
 410 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 411 {
 412     const KUrl viewPropsUrl = viewPropertiesUrl();
 413     ViewProperties props(viewPropsUrl);
 414     props.setAdditionalInfo(info);
 415     m_fileItemDelegate->setShowInformation(info);
 416
 417     emit additionalInfoChanged();
 418
 419     if (itemView() != m_detailsView) {
 420         // the details view requires no reloading of the directory, as it maps
 421         // the file item delegate info to its columns internally
 422         loadDirectory(viewPropsUrl);
 423     }
 424 }
 425
 426 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 427 {
 428     return m_fileItemDelegate->showInformation();
 429 }
 430
 431 void DolphinView::reload()
 432 {
 433     setUrl(url());
 434     loadDirectory(url(), true);
 435 }
 436
 437 void DolphinView::refresh()
 438 {
 439     const bool oldActivationState = m_active;
 440     m_active = true;
 441
 442     createView();
 443     applyViewProperties(m_controller->url());
 444     reload();
 445
 446     setActive(oldActivationState);
 447 }
 448
 449 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 450 {
 451     if (m_controller->url() == url) {
 452         return;
 453     }
 454
 455     m_previewGenerator->cancelPreviews();
 456     m_controller->setUrl(url); // emits urlChanged, which we forward
 457
 458     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 459         applyViewProperties(rootUrl);
 460         loadDirectory(rootUrl);
 461         if (itemView() == m_columnView) {
 462             m_columnView->setRootUrl(rootUrl);
 463             m_columnView->showColumn(url);
 464         }
 465     } else {
 466         applyViewProperties(url);
 467         loadDirectory(url);
 468     }
 469
 470     emit startedPathLoading(url);
 471 }
 472
 473 void DolphinView::setNameFilter(const QString& nameFilter)
 474 {
 475     m_proxyModel->setFilterRegExp(nameFilter);
 476
 477     if (isColumnViewActive()) {
 478         // adjusting the directory lister is not enough in the case of the
 479         // column view, as each column has its own directory lister internally...
 480         m_columnView->setNameFilter(nameFilter);
 481     }
 482 }
 483
 484 void DolphinView::calculateItemCount(int& fileCount, int& folderCount) const
 485 {
 486     foreach (const KFileItem& item, m_dirLister->items()) {
 487         if (item.isDir()) {
 488             ++folderCount;
 489         } else {
 490             ++fileCount;
 491         }
 492     }
 493 }
 494
 495 QString DolphinView::statusBarText() const
 496 {
 497     if (hasSelection()) {
 498         // give a summary of the status of the selected files
 499         QString text;
 500         const KFileItemList list = selectedItems();
 501         if (list.isEmpty()) {
 502             // when an item is triggered, it is temporary selected but selectedItems()
 503             // will return an empty list
 504             return QString();
 505         }
 506
 507         int fileCount = 0;
 508         int folderCount = 0;
 509         KIO::filesize_t byteSize = 0;
 510         KFileItemList::const_iterator it = list.begin();
 511         const KFileItemList::const_iterator end = list.end();
 512         while (it != end) {
 513             const KFileItem& item = *it;
 514             if (item.isDir()) {
 515                 ++folderCount;
 516             } else {
 517                 ++fileCount;
 518                 byteSize += item.size();
 519             }
 520             ++it;
 521         }
 522
 523         if (folderCount > 0) {
 524             text = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 525             if (fileCount > 0) {
 526                 text += ", ";
 527             }
 528         }
 529
 530         if (fileCount > 0) {
 531             const QString sizeText(KIO::convertSize(byteSize));
 532             text += i18ncp("@info:status", "1 File selected (%2)", "%1 Files selected (%2)", fileCount, sizeText);
 533         }
 534         return text;
 535     } else {
 536         // Give a summary of the status of the current folder.
 537         int folderCount = 0;
 538         int fileCount = 0;
 539         calculateItemCount(fileCount, folderCount);
 540         return KIO::itemsSummaryString(fileCount + folderCount,
 541                                        fileCount,
 542                                        folderCount,
 543                                        0, false);
 544     }
 545 }
 546
 547 void DolphinView::setUrl(const KUrl& url)
 548 {
 549     // remember current item candidate (see restoreCurrentItem())
 550     m_currentItemUrl = url;
 551     updateView(url, KUrl());
 552 }
 553
 554 void DolphinView::changeSelection(const KFileItemList& selection)
 555 {
 556     clearSelection();
 557     if (selection.isEmpty()) {
 558         return;
 559     }
 560     const KUrl& baseUrl = url();
 561     KUrl url;
 562     QItemSelection new_selection;
 563     foreach(const KFileItem& item, selection) {
 564         url = item.url().upUrl();
 565         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 566             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 567             new_selection.select(index, index);
 568         }
 569     }
 570     itemView()->selectionModel()->select(new_selection,
 571                                          QItemSelectionModel::ClearAndSelect
 572                                          | QItemSelectionModel::Current);
 573 }
 574
 575 void DolphinView::renameSelectedItems()
 576 {
 577     const KFileItemList items = selectedItems();
 578     const int itemCount = items.count();
 579     if (itemCount < 1) {
 580         return;
 581     }
 582
 583     if (itemCount > 1) {
 584         // More than one item has been selected for renaming. Open
 585         // a rename dialog and rename all items afterwards.
 586         RenameDialog dialog(this, items);
 587         if (dialog.exec() == QDialog::Rejected) {
 588             return;
 589         }
 590
 591         const QString newName = dialog.newName();
 592         if (newName.isEmpty()) {
 593             emit errorMessage(dialog.errorString());
 594         } else {
 595             // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 596             // as one operation instead of n rename operations like it is done now...
 597             Q_ASSERT(newName.contains('#'));
 598
 599             // iterate through all selected items and rename them...
 600             int index = 1;
 601             foreach (const KFileItem &item, items) {
 602                 const KUrl& oldUrl = item.url();
 603                 QString number;
 604                 number.setNum(index++);
 605
 606                 QString name = newName;
 607                 name.replace('#', number);
 608
 609                 if (oldUrl.fileName() != name) {
 610                     KUrl newUrl = oldUrl;
 611                     newUrl.setFileName(name);
 612                     KonqOperations::rename(this, oldUrl, newUrl);
 613                 }
 614             }
 615         }
 616     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 617         Q_ASSERT(itemCount == 1);
 618
 619         if (isColumnViewActive()) {
 620             m_columnView->editItem(items.first());
 621         } else {
 622             const QModelIndex dirIndex = m_dolphinModel->indexForItem(items.first());
 623             const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 624             itemView()->edit(proxyIndex);
 625         }
 626     } else {
 627         Q_ASSERT(itemCount == 1);
 628
 629         RenameDialog dialog(this, items);
 630         if (dialog.exec() == QDialog::Rejected) {
 631             return;
 632         }
 633
 634         const QString& newName = dialog.newName();
 635         if (newName.isEmpty()) {
 636             emit errorMessage(dialog.errorString());
 637         } else {
 638             const KUrl& oldUrl = items.first().url();
 639             KUrl newUrl = oldUrl;
 640             newUrl.setFileName(newName);
 641             KonqOperations::rename(this, oldUrl, newUrl);
 642         }
 643     }
 644 }
 645
 646 void DolphinView::trashSelectedItems()
 647 {
 648     const KUrl::List list = simplifiedSelectedUrls();
 649     KonqOperations::del(this, KonqOperations::TRASH, list);
 650 }
 651
 652 void DolphinView::deleteSelectedItems()
 653 {
 654     const KUrl::List list = simplifiedSelectedUrls();
 655     const bool del = KonqOperations::askDeleteConfirmation(list,
 656                      KonqOperations::DEL,
 657                      KonqOperations::DEFAULT_CONFIRMATION,
 658                      this);
 659
 660     if (del) {
 661         KIO::Job* job = KIO::del(list);
 662         connect(job, SIGNAL(result(KJob*)),
 663                 this, SLOT(slotDeleteFileFinished(KJob*)));
 664     }
 665 }
 666
 667 void DolphinView::cutSelectedItems()
 668 {
 669     QMimeData* mimeData = new QMimeData();
 670     const KUrl::List kdeUrls = simplifiedSelectedUrls();
 671     const KUrl::List mostLocalUrls;
 672     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 673     QApplication::clipboard()->setMimeData(mimeData);
 674 }
 675
 676 void DolphinView::copySelectedItems()
 677 {
 678     QMimeData* mimeData = new QMimeData();
 679     const KUrl::List kdeUrls = selectedUrls();
 680     const KUrl::List mostLocalUrls;
 681     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 682     QApplication::clipboard()->setMimeData(mimeData);
 683 }
 684
 685 void DolphinView::paste()
 686 {
 687     pasteToUrl(url());
 688 }
 689
 690 void DolphinView::pasteIntoFolder()
 691 {
 692     const KFileItemList items = selectedItems();
 693     if ((items.count() == 1) && items.first().isDir()) {
 694         pasteToUrl(items.first().url());
 695     }
 696 }
 697
 698 void DolphinView::setShowPreview(bool show)
 699 {
 700     if (m_showPreview == show) {
 701         return;
 702     }
 703
 704     const KUrl viewPropsUrl = viewPropertiesUrl();
 705     ViewProperties props(viewPropsUrl);
 706     props.setShowPreview(show);
 707
 708     m_showPreview = show;
 709     m_previewGenerator->setPreviewShown(show);
 710
 711     const int oldZoomLevel = m_controller->zoomLevel();
 712     emit showPreviewChanged();
 713
 714     // Enabling or disabling the preview might change the icon size of the view.
 715     // As the view does not emit a signal when the icon size has been changed,
 716     // the used zoom level of the controller must be adjusted manually:
 717     updateZoomLevel(oldZoomLevel);
 718
 719     loadDirectory(viewPropsUrl);
 720 }
 721
 722 void DolphinView::setShowHiddenFiles(bool show)
 723 {
 724     if (m_dirLister->showingDotFiles() == show) {
 725         return;
 726     }
 727
 728     const KUrl viewPropsUrl = viewPropertiesUrl();
 729     ViewProperties props(viewPropsUrl);
 730     props.setShowHiddenFiles(show);
 731
 732     m_dirLister->setShowingDotFiles(show);
 733     emit showHiddenFilesChanged();
 734
 735     loadDirectory(viewPropsUrl);
 736 }
 737
 738 void DolphinView::setCategorizedSorting(bool categorized)
 739 {
 740     if (categorized == categorizedSorting()) {
 741         return;
 742     }
 743
 744     // setCategorizedSorting(true) may only get invoked
 745     // if the view supports categorized sorting
 746     Q_ASSERT(!categorized || supportsCategorizedSorting());
 747
 748     ViewProperties props(viewPropertiesUrl());
 749     props.setCategorizedSorting(categorized);
 750     props.save();
 751
 752     m_storedCategorizedSorting = categorized;
 753     m_proxyModel->setCategorizedModel(categorized);
 754
 755     emit categorizedSortingChanged();
 756 }
 757
 758 void DolphinView::toggleSortOrder()
 759 {
 760     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 761                                 Qt::DescendingOrder :
 762                                 Qt::AscendingOrder;
 763     setSortOrder(order);
 764 }
 765
 766 void DolphinView::toggleAdditionalInfo(QAction* action)
 767 {
 768     const KFileItemDelegate::Information info =
 769         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 770
 771     KFileItemDelegate::InformationList list = additionalInfo();
 772
 773     const bool show = action->isChecked();
 774
 775     const int index = list.indexOf(info);
 776     const bool containsInfo = (index >= 0);
 777     if (show && !containsInfo) {
 778         list.append(info);
 779         setAdditionalInfo(list);
 780     } else if (!show && containsInfo) {
 781         list.removeAt(index);
 782         setAdditionalInfo(list);
 783         Q_ASSERT(list.indexOf(info) < 0);
 784     }
 785 }
 786
 787 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 788 {
 789     QWidget::mouseReleaseEvent(event);
 790     setActive(true);
 791 }
 792
 793 void DolphinView::wheelEvent(QWheelEvent* event)
 794 {
 795     if (event->modifiers() & Qt::ControlModifier) {
 796         const int delta = event->delta();
 797         const int level = zoomLevel();
 798         if (delta > 0) {
 799             setZoomLevel(level + 1);
 800         } else if (delta < 0) {
 801             setZoomLevel(level - 1);
 802         }
 803         event->accept();
 804     }
 805 }
 806
 807 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 808 {
 809     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 810         m_controller->requestActivation();
 811     }
 812
 813     return QWidget::eventFilter(watched, event);
 814 }
 815
 816 void DolphinView::activate()
 817 {
 818     setActive(true);
 819 }
 820
 821 void DolphinView::triggerItem(const KFileItem& item)
 822 {
 823     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 824     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 825         // items are selected by the user, hence don't trigger the
 826         // item specified by 'index'
 827         return;
 828     }
 829
 830     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 831     if (item.isNull() || m_isContextMenuOpen) {
 832         return;
 833     }
 834
 835     if (m_toolTipManager != 0) {
 836         m_toolTipManager->hideTip();
 837     }
 838     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 839 }
 840
 841 void DolphinView::emitSelectionChangedSignal()
 842 {
 843     emit selectionChanged(DolphinView::selectedItems());
 844 }
 845
 846 void DolphinView::openContextMenu(const QPoint& pos)
 847 {
 848     KFileItem item;
 849     if (isColumnViewActive()) {
 850         item = m_columnView->itemAt(pos);
 851     } else {
 852         const QModelIndex index = itemView()->indexAt(pos);
 853         if (index.isValid() && (index.column() == DolphinModel::Name)) {
 854             const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 855             item = m_dolphinModel->itemForIndex(dolphinModelIndex);
 856         }
 857     }
 858
 859     if (m_toolTipManager != 0) {
 860         m_toolTipManager->hideTip();
 861     }
 862
 863     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 864     emit requestContextMenu(item, url());
 865     m_isContextMenuOpen = false;
 866 }
 867
 868 void DolphinView::dropUrls(const KFileItem& destItem,
 869                            const KUrl& destPath,
 870                            QDropEvent* event)
 871 {
 872     DolphinDropController::dropUrls(destItem, destPath, event, this);
 873 }
 874
 875 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 876 {
 877     ViewProperties props(viewPropertiesUrl());
 878     props.setSorting(sorting);
 879
 880     m_proxyModel->setSorting(sorting);
 881
 882     emit sortingChanged(sorting);
 883 }
 884
 885 void DolphinView::updateSortOrder(Qt::SortOrder order)
 886 {
 887     ViewProperties props(viewPropertiesUrl());
 888     props.setSortOrder(order);
 889
 890     m_proxyModel->setSortOrder(order);
 891
 892     emit sortOrderChanged(order);
 893 }
 894
 895 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 896 {
 897     ViewProperties props(viewPropertiesUrl());
 898     props.setAdditionalInfo(info);
 899     props.save();
 900
 901     m_fileItemDelegate->setShowInformation(info);
 902
 903     emit additionalInfoChanged();
 904 }
 905
 906 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 907 {
 908     const bool enable = (m_mode == DolphinView::DetailsView) ||
 909                         (m_mode == DolphinView::IconsView);
 910
 911     QAction* showSizeInfo = collection->action("show_size_info");
 912     QAction* showDateInfo = collection->action("show_date_info");
 913     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 914     QAction* showOwnerInfo = collection->action("show_owner_info");
 915     QAction* showGroupInfo = collection->action("show_group_info");
 916     QAction* showMimeInfo = collection->action("show_mime_info");
 917
 918     showSizeInfo->setChecked(false);
 919     showDateInfo->setChecked(false);
 920     showPermissionsInfo->setChecked(false);
 921     showOwnerInfo->setChecked(false);
 922     showGroupInfo->setChecked(false);
 923     showMimeInfo->setChecked(false);
 924
 925     showSizeInfo->setEnabled(enable);
 926     showDateInfo->setEnabled(enable);
 927     showPermissionsInfo->setEnabled(enable);
 928     showOwnerInfo->setEnabled(enable);
 929     showGroupInfo->setEnabled(enable);
 930     showMimeInfo->setEnabled(enable);
 931
 932     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 933         switch (info) {
 934         case KFileItemDelegate::Size:
 935             showSizeInfo->setChecked(true);
 936             break;
 937         case KFileItemDelegate::ModificationTime:
 938             showDateInfo->setChecked(true);
 939             break;
 940         case KFileItemDelegate::Permissions:
 941             showPermissionsInfo->setChecked(true);
 942             break;
 943         case KFileItemDelegate::Owner:
 944             showOwnerInfo->setChecked(true);
 945             break;
 946         case KFileItemDelegate::OwnerAndGroup:
 947             showGroupInfo->setChecked(true);
 948             break;
 949         case KFileItemDelegate::FriendlyMimeType:
 950             showMimeInfo->setChecked(true);
 951             break;
 952         default:
 953             break;
 954         }
 955     }
 956 }
 957
 958 QPair<bool, QString> DolphinView::pasteInfo() const
 959 {
 960     QPair<bool, QString> ret;
 961     QClipboard* clipboard = QApplication::clipboard();
 962     const QMimeData* mimeData = clipboard->mimeData();
 963
 964     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 965     if (!urls.isEmpty()) {
 966         // disable the paste action if no writing is supported
 967         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url());
 968         ret.first = KonqFileItemCapabilities(KFileItemList() << item).supportsWriting();
 969
 970         if (urls.count() == 1) {
 971             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 972             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 973                                         i18nc("@action:inmenu", "Paste One File");
 974
 975         } else {
 976             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 977         }
 978     } else {
 979         ret.first = false;
 980         ret.second = i18nc("@action:inmenu", "Paste");
 981     }
 982
 983     return ret;
 984 }
 985
 986 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 987 {
 988     m_tabsForFiles = tabsForFiles;
 989 }
 990
 991 bool DolphinView::isTabsForFilesEnabled() const
 992 {
 993     return m_tabsForFiles;
 994 }
 995
 996 void DolphinView::emitContentsMoved()
 997 {
 998     // only emit the contents moved signal if:
 999     // - no directory loading is ongoing (this would reset the contents position
1000     //   always to (0, 0))
1001     // - if the Column View is active: the column view does an automatic
1002     //   positioning during the loading operation, which must be remembered
1003     if (!m_loadingDirectory || isColumnViewActive()) {
1004         const QPoint pos(contentsPosition());
1005         emit contentsMoved(pos.x(), pos.y());
1006     }
1007 }
1008
1009 void DolphinView::showHoverInformation(const KFileItem& item)
1010 {
1011     emit requestItemInfo(item);
1012 }
1013
1014 void DolphinView::clearHoverInformation()
1015 {
1016     emit requestItemInfo(KFileItem());
1017 }
1018
1019 void DolphinView::slotDeleteFileFinished(KJob* job)
1020 {
1021     if (job->error() == 0) {
1022         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1023     } else {
1024         emit errorMessage(job->errorString());
1025     }
1026 }
1027
1028 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1029 {
1030     if (oldUrl == m_controller->url()) {
1031         m_controller->setUrl(newUrl);
1032     }
1033 }
1034
1035 void DolphinView::slotRequestUrlChange(const KUrl& url)
1036 {
1037     emit requestUrlChange(url);
1038     m_controller->setUrl(url);
1039 }
1040
1041 void DolphinView::restoreCurrentItem()
1042 {
1043     const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_currentItemUrl);
1044     if (dirIndex.isValid()) {
1045         const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
1046         QAbstractItemView* view = itemView();
1047         const bool clearSelection = !hasSelection();
1048         view->setCurrentIndex(proxyIndex);
1049         if (clearSelection) {
1050             view->clearSelection();
1051         }
1052     }
1053 }
1054
1055 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1056 {
1057     if (!url.isValid()) {
1058         const QString location(url.pathOrUrl());
1059         if (location.isEmpty()) {
1060             emit errorMessage(i18nc("@info:status", "The location is empty."));
1061         } else {
1062             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1063         }
1064         return;
1065     }
1066
1067     m_loadingDirectory = true;
1068
1069     m_dirLister->stop();
1070     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1071
1072     if (isColumnViewActive()) {
1073         // adjusting the directory lister is not enough in the case of the
1074         // column view, as each column has its own directory lister internally...
1075         if (reload) {
1076             m_columnView->reload();
1077         } else {
1078             m_columnView->showColumn(url);
1079         }
1080     }
1081 }
1082
1083 KUrl DolphinView::viewPropertiesUrl() const
1084 {
1085     if (isColumnViewActive()) {
1086         return m_columnView->rootUrl();
1087     }
1088
1089     return url();
1090 }
1091
1092 void DolphinView::applyViewProperties(const KUrl& url)
1093 {
1094     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
1095         // The column view is active, hence don't apply the view properties
1096         // of sub directories (represented by columns) to the view. The
1097         // view always represents the properties of the first column.
1098         return;
1099     }
1100
1101     const ViewProperties props(url);
1102
1103     const Mode mode = props.viewMode();
1104     if (m_mode != mode) {
1105         m_mode = mode;
1106         createView();
1107         emit modeChanged();
1108     }
1109     if (itemView() == 0) {
1110         createView();
1111     }
1112     Q_ASSERT(itemView() != 0);
1113     Q_ASSERT(m_fileItemDelegate != 0);
1114
1115     const bool showHiddenFiles = props.showHiddenFiles();
1116     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1117         m_dirLister->setShowingDotFiles(showHiddenFiles);
1118         emit showHiddenFilesChanged();
1119     }
1120
1121     m_storedCategorizedSorting = props.categorizedSorting();
1122     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1123     if (categorized != m_proxyModel->isCategorizedModel()) {
1124         m_proxyModel->setCategorizedModel(categorized);
1125         emit categorizedSortingChanged();
1126     }
1127
1128     const DolphinView::Sorting sorting = props.sorting();
1129     if (sorting != m_proxyModel->sorting()) {
1130         m_proxyModel->setSorting(sorting);
1131         emit sortingChanged(sorting);
1132     }
1133
1134     const Qt::SortOrder sortOrder = props.sortOrder();
1135     if (sortOrder != m_proxyModel->sortOrder()) {
1136         m_proxyModel->setSortOrder(sortOrder);
1137         emit sortOrderChanged(sortOrder);
1138     }
1139
1140     KFileItemDelegate::InformationList info = props.additionalInfo();
1141     if (info != m_fileItemDelegate->showInformation()) {
1142         m_fileItemDelegate->setShowInformation(info);
1143         emit additionalInfoChanged();
1144     }
1145
1146     const bool showPreview = props.showPreview();
1147     if (showPreview != m_showPreview) {
1148         m_showPreview = showPreview;
1149         m_previewGenerator->setPreviewShown(showPreview);
1150
1151         const int oldZoomLevel = m_controller->zoomLevel();
1152         emit showPreviewChanged();
1153
1154         // Enabling or disabling the preview might change the icon size of the view.
1155         // As the view does not emit a signal when the icon size has been changed,
1156         // the used zoom level of the controller must be adjusted manually:
1157         updateZoomLevel(oldZoomLevel);
1158     }
1159 }
1160
1161 void DolphinView::createView()
1162 {
1163     deleteView();
1164     Q_ASSERT(m_iconsView == 0);
1165     Q_ASSERT(m_detailsView == 0);
1166     Q_ASSERT(m_columnView == 0);
1167
1168     QAbstractItemView* view = 0;
1169     switch (m_mode) {
1170     case IconsView: {
1171         m_iconsView = new DolphinIconsView(this, m_controller);
1172         view = m_iconsView;
1173         break;
1174     }
1175
1176     case DetailsView:
1177         m_detailsView = new DolphinDetailsView(this, m_controller);
1178         view = m_detailsView;
1179         break;
1180
1181     case ColumnView:
1182         m_columnView = new DolphinColumnView(this, m_controller);
1183         view = m_columnView;
1184         break;
1185     }
1186
1187     Q_ASSERT(view != 0);
1188     view->installEventFilter(this);
1189
1190     if (m_mode != ColumnView) {
1191         // Give the view the ability to auto-expand its directories on hovering
1192         // (the column view takes care about this itself). If the details view
1193         // uses expandable folders, the auto-expanding should be used always.
1194         DolphinSettings& settings = DolphinSettings::instance();
1195         const bool enabled = settings.generalSettings()->autoExpandFolders() ||
1196                             ((m_detailsView != 0) && settings.detailsModeSettings()->expandableFolders());
1197
1198         FolderExpander* folderExpander = new FolderExpander(view, m_proxyModel);
1199         folderExpander->setEnabled(enabled);
1200         connect(folderExpander, SIGNAL(enterDir(const QModelIndex&)),
1201                 m_controller, SLOT(triggerItem(const QModelIndex&)));
1202     }
1203
1204     m_controller->setItemView(view);
1205
1206     m_fileItemDelegate = new KFileItemDelegate(view);
1207     m_fileItemDelegate->setShowToolTipWhenElided(false);
1208     view->setItemDelegate(m_fileItemDelegate);
1209
1210     view->setModel(m_proxyModel);
1211     if (m_selectionModel != 0) {
1212         view->setSelectionModel(m_selectionModel);
1213     } else {
1214         m_selectionModel = view->selectionModel();
1215     }
1216
1217     // reparent the selection model, as it should not be deleted
1218     // when deleting the model
1219     m_selectionModel->setParent(this);
1220
1221     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1222
1223     m_previewGenerator = new KFilePreviewGenerator(view, m_proxyModel);
1224     m_previewGenerator->setPreviewShown(m_showPreview);
1225
1226     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
1227         m_toolTipManager = new ToolTipManager(view, m_proxyModel);
1228     }
1229
1230     m_topLayout->insertWidget(1, view);
1231
1232     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1233             this, SLOT(emitSelectionChangedSignal()));
1234     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1235             this, SLOT(emitContentsMoved()));
1236     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1237             this, SLOT(emitContentsMoved()));
1238 }
1239
1240 void DolphinView::deleteView()
1241 {
1242     QAbstractItemView* view = itemView();
1243     if (view != 0) {
1244         // It's important to set the keyboard focus to the parent
1245         // before deleting the view: Otherwise when having a split
1246         // view the other view will get the focus and will request
1247         // an activation (see DolphinView::eventFilter()).
1248         setFocus();
1249
1250         m_topLayout->removeWidget(view);
1251         view->close();
1252         view->deleteLater();
1253         view = 0;
1254         m_iconsView = 0;
1255         m_detailsView = 0;
1256         m_columnView = 0;
1257         m_fileItemDelegate = 0;
1258         m_previewGenerator = 0;
1259         m_toolTipManager = 0;
1260     }
1261 }
1262
1263 QAbstractItemView* DolphinView::itemView() const
1264 {
1265     if (m_detailsView != 0) {
1266         return m_detailsView;
1267     } else if (m_columnView != 0) {
1268         return m_columnView;
1269     }
1270
1271     return m_iconsView;
1272 }
1273
1274 bool DolphinView::isCutItem(const KFileItem& item) const
1275 {
1276     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1277     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1278
1279     const KUrl& itemUrl = item.url();
1280     KUrl::List::const_iterator it = cutUrls.begin();
1281     const KUrl::List::const_iterator end = cutUrls.end();
1282     while (it != end) {
1283         if (*it == itemUrl) {
1284             return true;
1285         }
1286         ++it;
1287     }
1288
1289     return false;
1290 }
1291
1292 void DolphinView::pasteToUrl(const KUrl& url)
1293 {
1294     QClipboard* clipboard = QApplication::clipboard();
1295     const QMimeData* mimeData = clipboard->mimeData();
1296
1297     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1298     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1299         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1300         clipboard->clear();
1301     } else {
1302         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1303     }
1304 }
1305
1306 void DolphinView::updateZoomLevel(int oldZoomLevel)
1307 {
1308     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(itemView()->iconSize());
1309     if (oldZoomLevel != newZoomLevel) {
1310         m_controller->setZoomLevel(newZoomLevel);
1311         emit zoomLevelChanged(newZoomLevel);
1312     }
1313 }
1314
1315 KUrl::List DolphinView::simplifiedSelectedUrls() const
1316 {
1317     KUrl::List list = selectedUrls();
1318     if ((m_detailsView != 0) && m_detailsView->itemsExpandable()) {
1319         list = KonqOperations::simplifiedUrlList(list);
1320     }
1321     return list;
1322 }
1323
1324 #include "dolphinview.moc"