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     const int oldZoomLevel = m_controller->zoomLevel();
 197     m_mode = mode;
 198
 199     deleteView();
 200
 201     const KUrl viewPropsUrl = viewPropertiesUrl();
 202     ViewProperties props(viewPropsUrl);
 203     props.setViewMode(m_mode);
 204     createView();
 205
 206     // the file item delegate has been recreated, apply the current
 207     // additional information manually
 208     const KFileItemDelegate::InformationList infoList = props.additionalInfo();
 209     m_fileItemDelegate->setShowInformation(infoList);
 210     emit additionalInfoChanged();
 211
 212     // Not all view modes support categorized sorting. Adjust the sorting model
 213     // if changing the view mode results in a change of the categorized sorting
 214     // capabilities.
 215     m_storedCategorizedSorting = props.categorizedSorting();
 216     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
 217     if (categorized != m_proxyModel->isCategorizedModel()) {
 218         m_proxyModel->setCategorizedModel(categorized);
 219         emit categorizedSortingChanged();
 220     }
 221
 222     emit modeChanged();
 223     updateZoomLevel(oldZoomLevel);
 224 }
 225
 226 DolphinView::Mode DolphinView::mode() const
 227 {
 228     return m_mode;
 229 }
 230
 231 bool DolphinView::showPreview() const
 232 {
 233     return m_showPreview;
 234 }
 235
 236 bool DolphinView::showHiddenFiles() const
 237 {
 238     return m_dirLister->showingDotFiles();
 239 }
 240
 241 bool DolphinView::categorizedSorting() const
 242 {
 243     // If all view modes would support categorized sorting, returning
 244     // m_proxyModel->isCategorizedModel() would be the way to go. As
 245     // currently only the icons view supports caterized sorting, we remember
 246     // the stored view properties state in m_storedCategorizedSorting and
 247     // return this state. The application takes care to disable the corresponding
 248     // checkbox by checking DolphinView::supportsCategorizedSorting() to indicate
 249     // that this setting is not applied to the current view mode.
 250     return m_storedCategorizedSorting;
 251 }
 252
 253 bool DolphinView::supportsCategorizedSorting() const
 254 {
 255     return m_iconsView != 0;
 256 }
 257
 258 void DolphinView::selectAll()
 259 {
 260     QAbstractItemView* view = itemView();
 261     // TODO: there seems to be a bug in QAbstractItemView::selectAll(); if
 262     // the Ctrl-key is pressed (e. g. for Ctrl+A), selectAll() inverts the
 263     // selection instead of selecting all items. This is bypassed for KDE 4.0
 264     // by invoking clearSelection() first.
 265     view->clearSelection();
 266     view->selectAll();
 267 }
 268
 269 void DolphinView::invertSelection()
 270 {
 271     if (isColumnViewActive()) {
 272         // QAbstractItemView does not offer a virtual method invertSelection()
 273         // as counterpart to QAbstractItemView::selectAll(). This makes it
 274         // necessary to delegate the inverting of the selection to the
 275         // column view, as only the selection of the active column should
 276         // get inverted.
 277         m_columnView->invertSelection();
 278     } else {
 279         QItemSelectionModel* selectionModel = itemView()->selectionModel();
 280         const QAbstractItemModel* itemModel = selectionModel->model();
 281
 282         const QModelIndex topLeft = itemModel->index(0, 0);
 283         const QModelIndex bottomRight = itemModel->index(itemModel->rowCount() - 1,
 284                                                          itemModel->columnCount() - 1);
 285
 286         const QItemSelection selection(topLeft, bottomRight);
 287         selectionModel->select(selection, QItemSelectionModel::Toggle);
 288     }
 289 }
 290
 291 bool DolphinView::hasSelection() const
 292 {
 293     return itemView()->selectionModel()->hasSelection();
 294 }
 295
 296 void DolphinView::clearSelection()
 297 {
 298     itemView()->selectionModel()->clear();
 299 }
 300
 301 KFileItemList DolphinView::selectedItems() const
 302 {
 303     if (isColumnViewActive()) {
 304         return m_columnView->selectedItems();
 305     }
 306
 307     const QAbstractItemView* view = itemView();
 308
 309     // Our view has a selection, we will map them back to the DolphinModel
 310     // and then fill the KFileItemList.
 311     Q_ASSERT((view != 0) && (view->selectionModel() != 0));
 312
 313     const QItemSelection selection = m_proxyModel->mapSelectionToSource(view->selectionModel()->selection());
 314     KFileItemList itemList;
 315
 316     const QModelIndexList indexList = selection.indexes();
 317     foreach (const QModelIndex &index, indexList) {
 318         KFileItem item = m_dolphinModel->itemForIndex(index);
 319         if (!item.isNull()) {
 320             itemList.append(item);
 321         }
 322     }
 323
 324     return itemList;
 325 }
 326
 327 KUrl::List DolphinView::selectedUrls() const
 328 {
 329     KUrl::List urls;
 330     const KFileItemList list = selectedItems();
 331     foreach (const KFileItem &item, list) {
 332         urls.append(item.url());
 333     }
 334     return urls;
 335 }
 336
 337 int DolphinView::selectedItemsCount() const
 338 {
 339     if (isColumnViewActive()) {
 340         // TODO: get rid of this special case by adjusting the dir lister
 341         // to the current column
 342         return m_columnView->selectedItems().count();
 343     }
 344
 345     return itemView()->selectionModel()->selection().count();
 346 }
 347
 348 void DolphinView::setContentsPosition(int x, int y)
 349 {
 350     QAbstractItemView* view = itemView();
 351
 352     // the ColumnView takes care itself for the horizontal scrolling
 353     if (!isColumnViewActive()) {
 354         view->horizontalScrollBar()->setValue(x);
 355     }
 356     view->verticalScrollBar()->setValue(y);
 357
 358     m_loadingDirectory = false;
 359 }
 360
 361 QPoint DolphinView::contentsPosition() const
 362 {
 363     const int x = itemView()->horizontalScrollBar()->value();
 364     const int y = itemView()->verticalScrollBar()->value();
 365     return QPoint(x, y);
 366 }
 367
 368 void DolphinView::setZoomLevel(int level)
 369 {
 370     if (level < ZoomLevelInfo::minimumLevel()) {
 371         level = ZoomLevelInfo::minimumLevel();
 372     } else if (level > ZoomLevelInfo::maximumLevel()) {
 373         level = ZoomLevelInfo::maximumLevel();
 374     }
 375
 376     if (level != zoomLevel()) {
 377         m_controller->setZoomLevel(level);
 378         m_previewGenerator->updatePreviews();
 379         emit zoomLevelChanged(level);
 380     }
 381 }
 382
 383 int DolphinView::zoomLevel() const
 384 {
 385     return m_controller->zoomLevel();
 386 }
 387
 388 void DolphinView::setSorting(Sorting sorting)
 389 {
 390     if (sorting != this->sorting()) {
 391         updateSorting(sorting);
 392     }
 393 }
 394
 395 DolphinView::Sorting DolphinView::sorting() const
 396 {
 397     return m_proxyModel->sorting();
 398 }
 399
 400 void DolphinView::setSortOrder(Qt::SortOrder order)
 401 {
 402     if (sortOrder() != order) {
 403         updateSortOrder(order);
 404     }
 405 }
 406
 407 Qt::SortOrder DolphinView::sortOrder() const
 408 {
 409     return m_proxyModel->sortOrder();
 410 }
 411
 412 void DolphinView::setAdditionalInfo(KFileItemDelegate::InformationList info)
 413 {
 414     const KUrl viewPropsUrl = viewPropertiesUrl();
 415     ViewProperties props(viewPropsUrl);
 416     props.setAdditionalInfo(info);
 417     m_fileItemDelegate->setShowInformation(info);
 418
 419     emit additionalInfoChanged();
 420
 421     if (itemView() != m_detailsView) {
 422         // the details view requires no reloading of the directory, as it maps
 423         // the file item delegate info to its columns internally
 424         loadDirectory(viewPropsUrl);
 425     }
 426 }
 427
 428 KFileItemDelegate::InformationList DolphinView::additionalInfo() const
 429 {
 430     return m_fileItemDelegate->showInformation();
 431 }
 432
 433 void DolphinView::reload()
 434 {
 435     setUrl(url());
 436     loadDirectory(url(), true);
 437 }
 438
 439 void DolphinView::refresh()
 440 {
 441     const bool oldActivationState = m_active;
 442     m_active = true;
 443
 444     createView();
 445     applyViewProperties(m_controller->url());
 446     reload();
 447
 448     setActive(oldActivationState);
 449 }
 450
 451 void DolphinView::updateView(const KUrl& url, const KUrl& rootUrl)
 452 {
 453     if (m_controller->url() == url) {
 454         return;
 455     }
 456
 457     m_previewGenerator->cancelPreviews();
 458     m_controller->setUrl(url); // emits urlChanged, which we forward
 459
 460     if (!rootUrl.isEmpty() && rootUrl.isParentOf(url)) {
 461         applyViewProperties(rootUrl);
 462         loadDirectory(rootUrl);
 463         if (itemView() == m_columnView) {
 464             m_columnView->setRootUrl(rootUrl);
 465             m_columnView->showColumn(url);
 466         }
 467     } else {
 468         applyViewProperties(url);
 469         loadDirectory(url);
 470     }
 471
 472     emit startedPathLoading(url);
 473 }
 474
 475 void DolphinView::setNameFilter(const QString& nameFilter)
 476 {
 477     m_proxyModel->setFilterRegExp(nameFilter);
 478
 479     if (isColumnViewActive()) {
 480         // adjusting the directory lister is not enough in the case of the
 481         // column view, as each column has its own directory lister internally...
 482         m_columnView->setNameFilter(nameFilter);
 483     }
 484 }
 485
 486 void DolphinView::calculateItemCount(int& fileCount, int& folderCount) const
 487 {
 488     foreach (const KFileItem& item, m_dirLister->items()) {
 489         if (item.isDir()) {
 490             ++folderCount;
 491         } else {
 492             ++fileCount;
 493         }
 494     }
 495 }
 496
 497 QString DolphinView::statusBarText() const
 498 {
 499     if (hasSelection()) {
 500         // give a summary of the status of the selected files
 501         QString text;
 502         const KFileItemList list = selectedItems();
 503         if (list.isEmpty()) {
 504             // when an item is triggered, it is temporary selected but selectedItems()
 505             // will return an empty list
 506             return QString();
 507         }
 508
 509         int fileCount = 0;
 510         int folderCount = 0;
 511         KIO::filesize_t byteSize = 0;
 512         KFileItemList::const_iterator it = list.begin();
 513         const KFileItemList::const_iterator end = list.end();
 514         while (it != end) {
 515             const KFileItem& item = *it;
 516             if (item.isDir()) {
 517                 ++folderCount;
 518             } else {
 519                 ++fileCount;
 520                 byteSize += item.size();
 521             }
 522             ++it;
 523         }
 524
 525         if (folderCount > 0) {
 526             text = i18ncp("@info:status", "1 Folder selected", "%1 Folders selected", folderCount);
 527             if (fileCount > 0) {
 528                 text += ", ";
 529             }
 530         }
 531
 532         if (fileCount > 0) {
 533             const QString sizeText(KIO::convertSize(byteSize));
 534             text += i18ncp("@info:status", "1 File selected (%2)", "%1 Files selected (%2)", fileCount, sizeText);
 535         }
 536         return text;
 537     } else {
 538         // Give a summary of the status of the current folder.
 539         int folderCount = 0;
 540         int fileCount = 0;
 541         calculateItemCount(fileCount, folderCount);
 542         return KIO::itemsSummaryString(fileCount + folderCount,
 543                                        fileCount,
 544                                        folderCount,
 545                                        0, false);
 546     }
 547 }
 548
 549 void DolphinView::setUrl(const KUrl& url)
 550 {
 551     // remember current item candidate (see restoreCurrentItem())
 552     m_currentItemUrl = url;
 553     updateView(url, KUrl());
 554 }
 555
 556 void DolphinView::changeSelection(const KFileItemList& selection)
 557 {
 558     clearSelection();
 559     if (selection.isEmpty()) {
 560         return;
 561     }
 562     const KUrl& baseUrl = url();
 563     KUrl url;
 564     QItemSelection new_selection;
 565     foreach(const KFileItem& item, selection) {
 566         url = item.url().upUrl();
 567         if (baseUrl.equals(url, KUrl::CompareWithoutTrailingSlash)) {
 568             QModelIndex index = m_proxyModel->mapFromSource(m_dolphinModel->indexForItem(item));
 569             new_selection.select(index, index);
 570         }
 571     }
 572     itemView()->selectionModel()->select(new_selection,
 573                                          QItemSelectionModel::ClearAndSelect
 574                                          | QItemSelectionModel::Current);
 575 }
 576
 577 void DolphinView::renameSelectedItems()
 578 {
 579     const KFileItemList items = selectedItems();
 580     const int itemCount = items.count();
 581     if (itemCount < 1) {
 582         return;
 583     }
 584
 585     if (itemCount > 1) {
 586         // More than one item has been selected for renaming. Open
 587         // a rename dialog and rename all items afterwards.
 588         RenameDialog dialog(this, items);
 589         if (dialog.exec() == QDialog::Rejected) {
 590             return;
 591         }
 592
 593         const QString newName = dialog.newName();
 594         if (newName.isEmpty()) {
 595             emit errorMessage(dialog.errorString());
 596         } else {
 597             // TODO: check how this can be integrated into KIO::FileUndoManager/KonqOperations
 598             // as one operation instead of n rename operations like it is done now...
 599             Q_ASSERT(newName.contains('#'));
 600
 601             // iterate through all selected items and rename them...
 602             int index = 1;
 603             foreach (const KFileItem &item, items) {
 604                 const KUrl& oldUrl = item.url();
 605                 QString number;
 606                 number.setNum(index++);
 607
 608                 QString name = newName;
 609                 name.replace('#', number);
 610
 611                 if (oldUrl.fileName() != name) {
 612                     KUrl newUrl = oldUrl;
 613                     newUrl.setFileName(name);
 614                     KonqOperations::rename(this, oldUrl, newUrl);
 615                 }
 616             }
 617         }
 618     } else if (DolphinSettings::instance().generalSettings()->renameInline()) {
 619         Q_ASSERT(itemCount == 1);
 620
 621         if (isColumnViewActive()) {
 622             m_columnView->editItem(items.first());
 623         } else {
 624             const QModelIndex dirIndex = m_dolphinModel->indexForItem(items.first());
 625             const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
 626             itemView()->edit(proxyIndex);
 627         }
 628     } else {
 629         Q_ASSERT(itemCount == 1);
 630
 631         RenameDialog dialog(this, items);
 632         if (dialog.exec() == QDialog::Rejected) {
 633             return;
 634         }
 635
 636         const QString& newName = dialog.newName();
 637         if (newName.isEmpty()) {
 638             emit errorMessage(dialog.errorString());
 639         } else {
 640             const KUrl& oldUrl = items.first().url();
 641             KUrl newUrl = oldUrl;
 642             newUrl.setFileName(newName);
 643             KonqOperations::rename(this, oldUrl, newUrl);
 644         }
 645     }
 646 }
 647
 648 void DolphinView::trashSelectedItems()
 649 {
 650     const KUrl::List list = simplifiedSelectedUrls();
 651     KonqOperations::del(this, KonqOperations::TRASH, list);
 652 }
 653
 654 void DolphinView::deleteSelectedItems()
 655 {
 656     const KUrl::List list = simplifiedSelectedUrls();
 657     const bool del = KonqOperations::askDeleteConfirmation(list,
 658                      KonqOperations::DEL,
 659                      KonqOperations::DEFAULT_CONFIRMATION,
 660                      this);
 661
 662     if (del) {
 663         KIO::Job* job = KIO::del(list);
 664         connect(job, SIGNAL(result(KJob*)),
 665                 this, SLOT(slotDeleteFileFinished(KJob*)));
 666     }
 667 }
 668
 669 void DolphinView::cutSelectedItems()
 670 {
 671     QMimeData* mimeData = new QMimeData();
 672     const KUrl::List kdeUrls = simplifiedSelectedUrls();
 673     const KUrl::List mostLocalUrls;
 674     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, true);
 675     QApplication::clipboard()->setMimeData(mimeData);
 676 }
 677
 678 void DolphinView::copySelectedItems()
 679 {
 680     QMimeData* mimeData = new QMimeData();
 681     const KUrl::List kdeUrls = selectedUrls();
 682     const KUrl::List mostLocalUrls;
 683     KonqMimeData::populateMimeData(mimeData, kdeUrls, mostLocalUrls, false);
 684     QApplication::clipboard()->setMimeData(mimeData);
 685 }
 686
 687 void DolphinView::paste()
 688 {
 689     pasteToUrl(url());
 690 }
 691
 692 void DolphinView::pasteIntoFolder()
 693 {
 694     const KFileItemList items = selectedItems();
 695     if ((items.count() == 1) && items.first().isDir()) {
 696         pasteToUrl(items.first().url());
 697     }
 698 }
 699
 700 void DolphinView::setShowPreview(bool show)
 701 {
 702     if (m_showPreview == show) {
 703         return;
 704     }
 705
 706     const KUrl viewPropsUrl = viewPropertiesUrl();
 707     ViewProperties props(viewPropsUrl);
 708     props.setShowPreview(show);
 709
 710     m_showPreview = show;
 711     m_previewGenerator->setPreviewShown(show);
 712
 713     const int oldZoomLevel = m_controller->zoomLevel();
 714     emit showPreviewChanged();
 715
 716     // Enabling or disabling the preview might change the icon size of the view.
 717     // As the view does not emit a signal when the icon size has been changed,
 718     // the used zoom level of the controller must be adjusted manually:
 719     updateZoomLevel(oldZoomLevel);
 720
 721     loadDirectory(viewPropsUrl);
 722 }
 723
 724 void DolphinView::setShowHiddenFiles(bool show)
 725 {
 726     if (m_dirLister->showingDotFiles() == show) {
 727         return;
 728     }
 729
 730     const KUrl viewPropsUrl = viewPropertiesUrl();
 731     ViewProperties props(viewPropsUrl);
 732     props.setShowHiddenFiles(show);
 733
 734     m_dirLister->setShowingDotFiles(show);
 735     emit showHiddenFilesChanged();
 736
 737     loadDirectory(viewPropsUrl);
 738 }
 739
 740 void DolphinView::setCategorizedSorting(bool categorized)
 741 {
 742     if (categorized == categorizedSorting()) {
 743         return;
 744     }
 745
 746     // setCategorizedSorting(true) may only get invoked
 747     // if the view supports categorized sorting
 748     Q_ASSERT(!categorized || supportsCategorizedSorting());
 749
 750     ViewProperties props(viewPropertiesUrl());
 751     props.setCategorizedSorting(categorized);
 752     props.save();
 753
 754     m_storedCategorizedSorting = categorized;
 755     m_proxyModel->setCategorizedModel(categorized);
 756
 757     emit categorizedSortingChanged();
 758 }
 759
 760 void DolphinView::toggleSortOrder()
 761 {
 762     const Qt::SortOrder order = (sortOrder() == Qt::AscendingOrder) ?
 763                                 Qt::DescendingOrder :
 764                                 Qt::AscendingOrder;
 765     setSortOrder(order);
 766 }
 767
 768 void DolphinView::toggleAdditionalInfo(QAction* action)
 769 {
 770     const KFileItemDelegate::Information info =
 771         static_cast<KFileItemDelegate::Information>(action->data().toInt());
 772
 773     KFileItemDelegate::InformationList list = additionalInfo();
 774
 775     const bool show = action->isChecked();
 776
 777     const int index = list.indexOf(info);
 778     const bool containsInfo = (index >= 0);
 779     if (show && !containsInfo) {
 780         list.append(info);
 781         setAdditionalInfo(list);
 782     } else if (!show && containsInfo) {
 783         list.removeAt(index);
 784         setAdditionalInfo(list);
 785         Q_ASSERT(list.indexOf(info) < 0);
 786     }
 787 }
 788
 789 void DolphinView::mouseReleaseEvent(QMouseEvent* event)
 790 {
 791     QWidget::mouseReleaseEvent(event);
 792     setActive(true);
 793 }
 794
 795 void DolphinView::wheelEvent(QWheelEvent* event)
 796 {
 797     if (event->modifiers() & Qt::ControlModifier) {
 798         const int delta = event->delta();
 799         const int level = zoomLevel();
 800         if (delta > 0) {
 801             setZoomLevel(level + 1);
 802         } else if (delta < 0) {
 803             setZoomLevel(level - 1);
 804         }
 805         event->accept();
 806     }
 807 }
 808
 809 bool DolphinView::eventFilter(QObject* watched, QEvent* event)
 810 {
 811     if ((watched == itemView()) && (event->type() == QEvent::FocusIn)) {
 812         m_controller->requestActivation();
 813     }
 814
 815     return QWidget::eventFilter(watched, event);
 816 }
 817
 818 void DolphinView::activate()
 819 {
 820     setActive(true);
 821 }
 822
 823 void DolphinView::triggerItem(const KFileItem& item)
 824 {
 825     const Qt::KeyboardModifiers modifier = QApplication::keyboardModifiers();
 826     if ((modifier & Qt::ShiftModifier) || (modifier & Qt::ControlModifier)) {
 827         // items are selected by the user, hence don't trigger the
 828         // item specified by 'index'
 829         return;
 830     }
 831
 832     // TODO: the m_isContextMenuOpen check is a workaround for Qt-issue 207192
 833     if (item.isNull() || m_isContextMenuOpen) {
 834         return;
 835     }
 836
 837     if (m_toolTipManager != 0) {
 838         m_toolTipManager->hideTip();
 839     }
 840     emit itemTriggered(item); // caught by DolphinViewContainer or DolphinPart
 841 }
 842
 843 void DolphinView::emitSelectionChangedSignal()
 844 {
 845     emit selectionChanged(DolphinView::selectedItems());
 846 }
 847
 848 void DolphinView::openContextMenu(const QPoint& pos)
 849 {
 850     KFileItem item;
 851     if (isColumnViewActive()) {
 852         item = m_columnView->itemAt(pos);
 853     } else {
 854         const QModelIndex index = itemView()->indexAt(pos);
 855         if (index.isValid() && (index.column() == DolphinModel::Name)) {
 856             const QModelIndex dolphinModelIndex = m_proxyModel->mapToSource(index);
 857             item = m_dolphinModel->itemForIndex(dolphinModelIndex);
 858         }
 859     }
 860
 861     if (m_toolTipManager != 0) {
 862         m_toolTipManager->hideTip();
 863     }
 864
 865     m_isContextMenuOpen = true; // TODO: workaround for Qt-issue 207192
 866     emit requestContextMenu(item, url());
 867     m_isContextMenuOpen = false;
 868 }
 869
 870 void DolphinView::dropUrls(const KFileItem& destItem,
 871                            const KUrl& destPath,
 872                            QDropEvent* event)
 873 {
 874     DolphinDropController::dropUrls(destItem, destPath, event, this);
 875 }
 876
 877 void DolphinView::updateSorting(DolphinView::Sorting sorting)
 878 {
 879     ViewProperties props(viewPropertiesUrl());
 880     props.setSorting(sorting);
 881
 882     m_proxyModel->setSorting(sorting);
 883
 884     emit sortingChanged(sorting);
 885 }
 886
 887 void DolphinView::updateSortOrder(Qt::SortOrder order)
 888 {
 889     ViewProperties props(viewPropertiesUrl());
 890     props.setSortOrder(order);
 891
 892     m_proxyModel->setSortOrder(order);
 893
 894     emit sortOrderChanged(order);
 895 }
 896
 897 void DolphinView::updateAdditionalInfo(const KFileItemDelegate::InformationList& info)
 898 {
 899     ViewProperties props(viewPropertiesUrl());
 900     props.setAdditionalInfo(info);
 901     props.save();
 902
 903     m_fileItemDelegate->setShowInformation(info);
 904
 905     emit additionalInfoChanged();
 906 }
 907
 908 void DolphinView::updateAdditionalInfoActions(KActionCollection* collection)
 909 {
 910     const bool enable = (m_mode == DolphinView::DetailsView) ||
 911                         (m_mode == DolphinView::IconsView);
 912
 913     QAction* showSizeInfo = collection->action("show_size_info");
 914     QAction* showDateInfo = collection->action("show_date_info");
 915     QAction* showPermissionsInfo = collection->action("show_permissions_info");
 916     QAction* showOwnerInfo = collection->action("show_owner_info");
 917     QAction* showGroupInfo = collection->action("show_group_info");
 918     QAction* showMimeInfo = collection->action("show_mime_info");
 919
 920     showSizeInfo->setChecked(false);
 921     showDateInfo->setChecked(false);
 922     showPermissionsInfo->setChecked(false);
 923     showOwnerInfo->setChecked(false);
 924     showGroupInfo->setChecked(false);
 925     showMimeInfo->setChecked(false);
 926
 927     showSizeInfo->setEnabled(enable);
 928     showDateInfo->setEnabled(enable);
 929     showPermissionsInfo->setEnabled(enable);
 930     showOwnerInfo->setEnabled(enable);
 931     showGroupInfo->setEnabled(enable);
 932     showMimeInfo->setEnabled(enable);
 933
 934     foreach (KFileItemDelegate::Information info, m_fileItemDelegate->showInformation()) {
 935         switch (info) {
 936         case KFileItemDelegate::Size:
 937             showSizeInfo->setChecked(true);
 938             break;
 939         case KFileItemDelegate::ModificationTime:
 940             showDateInfo->setChecked(true);
 941             break;
 942         case KFileItemDelegate::Permissions:
 943             showPermissionsInfo->setChecked(true);
 944             break;
 945         case KFileItemDelegate::Owner:
 946             showOwnerInfo->setChecked(true);
 947             break;
 948         case KFileItemDelegate::OwnerAndGroup:
 949             showGroupInfo->setChecked(true);
 950             break;
 951         case KFileItemDelegate::FriendlyMimeType:
 952             showMimeInfo->setChecked(true);
 953             break;
 954         default:
 955             break;
 956         }
 957     }
 958 }
 959
 960 QPair<bool, QString> DolphinView::pasteInfo() const
 961 {
 962     QPair<bool, QString> ret;
 963     QClipboard* clipboard = QApplication::clipboard();
 964     const QMimeData* mimeData = clipboard->mimeData();
 965
 966     KUrl::List urls = KUrl::List::fromMimeData(mimeData);
 967     if (!urls.isEmpty()) {
 968         // disable the paste action if no writing is supported
 969         KFileItem item(KFileItem::Unknown, KFileItem::Unknown, url());
 970         ret.first = KonqFileItemCapabilities(KFileItemList() << item).supportsWriting();
 971
 972         if (urls.count() == 1) {
 973             const KFileItem item(KFileItem::Unknown, KFileItem::Unknown, urls.first(), true);
 974             ret.second = item.isDir() ? i18nc("@action:inmenu", "Paste One Folder") :
 975                                         i18nc("@action:inmenu", "Paste One File");
 976
 977         } else {
 978             ret.second = i18ncp("@action:inmenu", "Paste One Item", "Paste %1 Items", urls.count());
 979         }
 980     } else {
 981         ret.first = false;
 982         ret.second = i18nc("@action:inmenu", "Paste");
 983     }
 984
 985     return ret;
 986 }
 987
 988 void DolphinView::setTabsForFilesEnabled(bool tabsForFiles)
 989 {
 990     m_tabsForFiles = tabsForFiles;
 991 }
 992
 993 bool DolphinView::isTabsForFilesEnabled() const
 994 {
 995     return m_tabsForFiles;
 996 }
 997
 998 void DolphinView::emitContentsMoved()
 999 {
1000     // only emit the contents moved signal if:
1001     // - no directory loading is ongoing (this would reset the contents position
1002     //   always to (0, 0))
1003     // - if the Column View is active: the column view does an automatic
1004     //   positioning during the loading operation, which must be remembered
1005     if (!m_loadingDirectory || isColumnViewActive()) {
1006         const QPoint pos(contentsPosition());
1007         emit contentsMoved(pos.x(), pos.y());
1008     }
1009 }
1010
1011 void DolphinView::showHoverInformation(const KFileItem& item)
1012 {
1013     emit requestItemInfo(item);
1014 }
1015
1016 void DolphinView::clearHoverInformation()
1017 {
1018     emit requestItemInfo(KFileItem());
1019 }
1020
1021 void DolphinView::slotDeleteFileFinished(KJob* job)
1022 {
1023     if (job->error() == 0) {
1024         emit operationCompletedMessage(i18nc("@info:status", "Delete operation completed."));
1025     } else {
1026         emit errorMessage(job->errorString());
1027     }
1028 }
1029
1030 void DolphinView::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
1031 {
1032     if (oldUrl == m_controller->url()) {
1033         m_controller->setUrl(newUrl);
1034     }
1035 }
1036
1037 void DolphinView::slotRequestUrlChange(const KUrl& url)
1038 {
1039     emit requestUrlChange(url);
1040     m_controller->setUrl(url);
1041 }
1042
1043 void DolphinView::restoreCurrentItem()
1044 {
1045     const QModelIndex dirIndex = m_dolphinModel->indexForUrl(m_currentItemUrl);
1046     if (dirIndex.isValid()) {
1047         const QModelIndex proxyIndex = m_proxyModel->mapFromSource(dirIndex);
1048         QAbstractItemView* view = itemView();
1049         const bool clearSelection = !hasSelection();
1050         view->setCurrentIndex(proxyIndex);
1051         if (clearSelection) {
1052             view->clearSelection();
1053         }
1054     }
1055 }
1056
1057 void DolphinView::loadDirectory(const KUrl& url, bool reload)
1058 {
1059     if (!url.isValid()) {
1060         const QString location(url.pathOrUrl());
1061         if (location.isEmpty()) {
1062             emit errorMessage(i18nc("@info:status", "The location is empty."));
1063         } else {
1064             emit errorMessage(i18nc("@info:status", "The location '%1' is invalid.", location));
1065         }
1066         return;
1067     }
1068
1069     m_loadingDirectory = true;
1070
1071     m_dirLister->stop();
1072     m_dirLister->openUrl(url, reload ? KDirLister::Reload : KDirLister::NoFlags);
1073
1074     if (isColumnViewActive()) {
1075         // adjusting the directory lister is not enough in the case of the
1076         // column view, as each column has its own directory lister internally...
1077         if (reload) {
1078             m_columnView->reload();
1079         } else {
1080             m_columnView->showColumn(url);
1081         }
1082     }
1083 }
1084
1085 KUrl DolphinView::viewPropertiesUrl() const
1086 {
1087     if (isColumnViewActive()) {
1088         return m_columnView->rootUrl();
1089     }
1090
1091     return url();
1092 }
1093
1094 void DolphinView::applyViewProperties(const KUrl& url)
1095 {
1096     if (isColumnViewActive() && rootUrl().isParentOf(url)) {
1097         // The column view is active, hence don't apply the view properties
1098         // of sub directories (represented by columns) to the view. The
1099         // view always represents the properties of the first column.
1100         return;
1101     }
1102
1103     const ViewProperties props(url);
1104
1105     const Mode mode = props.viewMode();
1106     if (m_mode != mode) {
1107         const int oldZoomLevel = m_controller->zoomLevel();
1108
1109         m_mode = mode;
1110         createView();
1111         emit modeChanged();
1112
1113         updateZoomLevel(oldZoomLevel);
1114     }
1115     if (itemView() == 0) {
1116         createView();
1117     }
1118     Q_ASSERT(itemView() != 0);
1119     Q_ASSERT(m_fileItemDelegate != 0);
1120
1121     const bool showHiddenFiles = props.showHiddenFiles();
1122     if (showHiddenFiles != m_dirLister->showingDotFiles()) {
1123         m_dirLister->setShowingDotFiles(showHiddenFiles);
1124         emit showHiddenFilesChanged();
1125     }
1126
1127     m_storedCategorizedSorting = props.categorizedSorting();
1128     const bool categorized = m_storedCategorizedSorting && supportsCategorizedSorting();
1129     if (categorized != m_proxyModel->isCategorizedModel()) {
1130         m_proxyModel->setCategorizedModel(categorized);
1131         emit categorizedSortingChanged();
1132     }
1133
1134     const DolphinView::Sorting sorting = props.sorting();
1135     if (sorting != m_proxyModel->sorting()) {
1136         m_proxyModel->setSorting(sorting);
1137         emit sortingChanged(sorting);
1138     }
1139
1140     const Qt::SortOrder sortOrder = props.sortOrder();
1141     if (sortOrder != m_proxyModel->sortOrder()) {
1142         m_proxyModel->setSortOrder(sortOrder);
1143         emit sortOrderChanged(sortOrder);
1144     }
1145
1146     KFileItemDelegate::InformationList info = props.additionalInfo();
1147     if (info != m_fileItemDelegate->showInformation()) {
1148         m_fileItemDelegate->setShowInformation(info);
1149         emit additionalInfoChanged();
1150     }
1151
1152     const bool showPreview = props.showPreview();
1153     if (showPreview != m_showPreview) {
1154         m_showPreview = showPreview;
1155         m_previewGenerator->setPreviewShown(showPreview);
1156
1157         const int oldZoomLevel = m_controller->zoomLevel();
1158         emit showPreviewChanged();
1159
1160         // Enabling or disabling the preview might change the icon size of the view.
1161         // As the view does not emit a signal when the icon size has been changed,
1162         // the used zoom level of the controller must be adjusted manually:
1163         updateZoomLevel(oldZoomLevel);
1164     }
1165 }
1166
1167 void DolphinView::createView()
1168 {
1169     deleteView();
1170     Q_ASSERT(m_iconsView == 0);
1171     Q_ASSERT(m_detailsView == 0);
1172     Q_ASSERT(m_columnView == 0);
1173
1174     QAbstractItemView* view = 0;
1175     switch (m_mode) {
1176     case IconsView: {
1177         m_iconsView = new DolphinIconsView(this, m_controller);
1178         view = m_iconsView;
1179         break;
1180     }
1181
1182     case DetailsView:
1183         m_detailsView = new DolphinDetailsView(this, m_controller);
1184         view = m_detailsView;
1185         break;
1186
1187     case ColumnView:
1188         m_columnView = new DolphinColumnView(this, m_controller);
1189         view = m_columnView;
1190         break;
1191     }
1192
1193     Q_ASSERT(view != 0);
1194     view->installEventFilter(this);
1195
1196     if (m_mode != ColumnView) {
1197         // Give the view the ability to auto-expand its directories on hovering
1198         // (the column view takes care about this itself). If the details view
1199         // uses expandable folders, the auto-expanding should be used always.
1200         DolphinSettings& settings = DolphinSettings::instance();
1201         const bool enabled = settings.generalSettings()->autoExpandFolders() ||
1202                             ((m_detailsView != 0) && settings.detailsModeSettings()->expandableFolders());
1203
1204         FolderExpander* folderExpander = new FolderExpander(view, m_proxyModel);
1205         folderExpander->setEnabled(enabled);
1206         connect(folderExpander, SIGNAL(enterDir(const QModelIndex&)),
1207                 m_controller, SLOT(triggerItem(const QModelIndex&)));
1208     }
1209
1210     m_controller->setItemView(view);
1211
1212     m_fileItemDelegate = new KFileItemDelegate(view);
1213     m_fileItemDelegate->setShowToolTipWhenElided(false);
1214     view->setItemDelegate(m_fileItemDelegate);
1215
1216     view->setModel(m_proxyModel);
1217     if (m_selectionModel != 0) {
1218         view->setSelectionModel(m_selectionModel);
1219     } else {
1220         m_selectionModel = view->selectionModel();
1221     }
1222
1223     // reparent the selection model, as it should not be deleted
1224     // when deleting the model
1225     m_selectionModel->setParent(this);
1226
1227     view->setSelectionMode(QAbstractItemView::ExtendedSelection);
1228
1229     m_previewGenerator = new KFilePreviewGenerator(view);
1230     m_previewGenerator->setPreviewShown(m_showPreview);
1231
1232     if (DolphinSettings::instance().generalSettings()->showToolTips()) {
1233         m_toolTipManager = new ToolTipManager(view, m_proxyModel);
1234     }
1235
1236     m_topLayout->insertWidget(1, view);
1237
1238     connect(view->selectionModel(), SIGNAL(selectionChanged(const QItemSelection&, const QItemSelection&)),
1239             this, SLOT(emitSelectionChangedSignal()));
1240     connect(view->verticalScrollBar(), SIGNAL(valueChanged(int)),
1241             this, SLOT(emitContentsMoved()));
1242     connect(view->horizontalScrollBar(), SIGNAL(valueChanged(int)),
1243             this, SLOT(emitContentsMoved()));
1244 }
1245
1246 void DolphinView::deleteView()
1247 {
1248     QAbstractItemView* view = itemView();
1249     if (view != 0) {
1250         // It's important to set the keyboard focus to the parent
1251         // before deleting the view: Otherwise when having a split
1252         // view the other view will get the focus and will request
1253         // an activation (see DolphinView::eventFilter()).
1254         setFocus();
1255
1256         m_topLayout->removeWidget(view);
1257         view->close();
1258         view->deleteLater();
1259         view = 0;
1260         m_iconsView = 0;
1261         m_detailsView = 0;
1262         m_columnView = 0;
1263         m_fileItemDelegate = 0;
1264         m_previewGenerator = 0;
1265         m_toolTipManager = 0;
1266     }
1267 }
1268
1269 QAbstractItemView* DolphinView::itemView() const
1270 {
1271     if (m_detailsView != 0) {
1272         return m_detailsView;
1273     } else if (m_columnView != 0) {
1274         return m_columnView;
1275     }
1276
1277     return m_iconsView;
1278 }
1279
1280 bool DolphinView::isCutItem(const KFileItem& item) const
1281 {
1282     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
1283     const KUrl::List cutUrls = KUrl::List::fromMimeData(mimeData);
1284
1285     const KUrl& itemUrl = item.url();
1286     KUrl::List::const_iterator it = cutUrls.begin();
1287     const KUrl::List::const_iterator end = cutUrls.end();
1288     while (it != end) {
1289         if (*it == itemUrl) {
1290             return true;
1291         }
1292         ++it;
1293     }
1294
1295     return false;
1296 }
1297
1298 void DolphinView::pasteToUrl(const KUrl& url)
1299 {
1300     QClipboard* clipboard = QApplication::clipboard();
1301     const QMimeData* mimeData = clipboard->mimeData();
1302
1303     const KUrl::List sourceUrls = KUrl::List::fromMimeData(mimeData);
1304     if (KonqMimeData::decodeIsCutSelection(mimeData)) {
1305         KonqOperations::copy(this, KonqOperations::MOVE, sourceUrls, url);
1306         clipboard->clear();
1307     } else {
1308         KonqOperations::copy(this, KonqOperations::COPY, sourceUrls, url);
1309     }
1310 }
1311
1312 void DolphinView::updateZoomLevel(int oldZoomLevel)
1313 {
1314     const int newZoomLevel = ZoomLevelInfo::zoomLevelForIconSize(itemView()->iconSize());
1315     if (oldZoomLevel != newZoomLevel) {
1316         m_controller->setZoomLevel(newZoomLevel);
1317         emit zoomLevelChanged(newZoomLevel);
1318     }
1319 }
1320
1321 KUrl::List DolphinView::simplifiedSelectedUrls() const
1322 {
1323     KUrl::List list = selectedUrls();
1324     if (itemsExpandable() ) {
1325         list = KonqOperations::simplifiedUrlList(list);
1326     }
1327     return list;
1328 }
1329
1330 bool DolphinView::itemsExpandable() const
1331 {
1332     return (m_detailsView != 0) && m_detailsView->itemsExpandable();
1333 }
1334
1335 #include "dolphinview.moc"