// -*- c++ -*-
/* This file is part of the KDE libraries
    Copyright (C) 1997, 1998 Richard Moore <rich@kde.org>
                  1998 Stephan Kulow <coolo@kde.org>
                  1998 Daniel Grana <grana@ie.iwi.unibe.ch>
                  1999,2000,2001,2002,2003 Carsten Pfeiffer <pfeiffer@kde.org>
                  2003 Clarence Dang <dang@kde.org>
                  2007 David Faure <faure@kde.org>
                  2008 Rafael Fernández López <ereslibre@kde.org>

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
    Boston, MA 02110-1301, USA.
*/

#include "kfilewidget.h"

#include "kfileplacesview.h"
#include "kfileplacesmodel.h"
#include "kfilebookmarkhandler_p.h"
#include "kurlcombobox.h"
#include "kurlnavigator.h"
#include "kfilepreviewgenerator.h"
#include <config-kfile.h>

#include <kactioncollection.h>
#include <kdiroperator.h>
#include <kdirselectdialog.h>
#include <kfilefiltercombo.h>
#include <kimagefilepreview.h>
#include <kmenu.h>
#include <kmimetype.h>
#include <kpushbutton.h>
#include <krecentdocument.h>
#include <ktoolbar.h>
#include <kurlcompletion.h>
#include <kuser.h>
#include <kprotocolmanager.h>
#include <kio/job.h>
#include <kio/jobuidelegate.h>
#include <kio/netaccess.h>
#include <kio/scheduler.h>
#include <krecentdirs.h>
#include <kdebug.h>
#include <kio/kfileitemdelegate.h>

#include <QtGui/QCheckBox>
#include <QtGui/QDockWidget>
#include <QtGui/QLayout>
#include <QtGui/QLabel>
#include <QtGui/QLineEdit>
#include <QtGui/QSplitter>
#include <QtGui/QAbstractProxyModel>
#include <QtGui/QHelpEvent>
#include <QtGui/QApplication>
#include <QtCore/QFSFileEngine>
#include <kshell.h>
#include <kmessagebox.h>
#include <kauthorized.h>

class KFileWidgetPrivate
{
public:
    KFileWidgetPrivate(KFileWidget *widget)
        : q(widget),
          boxLayout(0),
          placesDock(0),
          placesView(0),
          placesViewSplitter(0),
          placesViewWidth(-1),
          labeledCustomWidget(0),
          bottomCustomWidget(0),
          autoSelectExtCheckBox(0),
          operationMode(KFileWidget::Opening),
          bookmarkHandler(0),
          toolbar(0),
          locationEdit(0),
          ops(0),
          filterWidget(0),
          autoSelectExtChecked(false),
          keepLocation(false),
          hasView(false),
          hasDefaultFilter(false),
          inAccept(false),
          dummyAdded(false),
          confirmOverwrite(false),
          differentHierarchyLevelItemsEntered(false),
          previewGenerator(0),
          iconSizeSlider(0)
    {
    }

    ~KFileWidgetPrivate()
    {
        delete bookmarkHandler; // Should be deleted before ops!
        delete ops;
    }

    void updateLocationWhatsThis();
    void updateAutoSelectExtension();
    void initSpeedbar();
    void initGUI();
    void readConfig(KConfigGroup &configGroup);
    void writeConfig(KConfigGroup &configGroup);
    void setNonExtSelection();
    void setLocationText(const KUrl&);
    void setLocationText(const KUrl::List&);
    void appendExtension(KUrl &url);
    void updateLocationEditExtension(const QString &);
    void updateFilter();
    KUrl::List& parseSelectedUrls();
    /**
     * Parses the string "line" for files. If line doesn't contain any ", the
     * whole line will be interpreted as one file. If the number of " is odd,
     * an empty list will be returned. Otherwise, all items enclosed in " "
     * will be returned as correct urls.
     */
    KUrl::List tokenize(const QString& line) const;
    /**
     * Reads the recent used files and inserts them into the location combobox
     */
    void readRecentFiles(KConfigGroup &cg);
    /**
     * Saves the entries from the location combobox.
     */
    void saveRecentFiles(KConfigGroup &cg);
    /**
     * called when an item is highlighted/selected in multiselection mode.
     * handles setting the locationEdit.
     */
    void multiSelectionChanged();

    /**
     * Returns the absolute version of the URL specified in locationEdit.
     */
    KUrl getCompleteUrl(const QString&) const;

    /**
     * Sets the dummy entry on the history combo box. If the dummy entry
     * already exists, it is overwritten with this information.
     */
    void setDummyHistoryEntry(const QString& text, const QPixmap& icon = QPixmap(),
                              bool usePreviousPixmapIfNull = true);

    /**
     * Removes the dummy entry of the history combo box.
     */
    void removeDummyHistoryEntry();

    /**
     * Asks for overwrite confirmation using a KMessageBox and returns
     * true if the user accepts.
     *
     * @since 4.2
     */
    bool toOverwrite(const KUrl&);

    // private slots
    void _k_slotLocationChanged( const QString& );
    void _k_urlEntered( const KUrl& );
    void _k_enterUrl( const KUrl& );
    void _k_enterUrl( const QString& );
    void _k_locationAccepted( const QString& );
    void _k_slotFilterChanged();
    void _k_fileHighlighted( const KFileItem& );
    void _k_fileSelected( const KFileItem& );
    void _k_slotLoadingFinished();
    void _k_fileCompletion( const QString& );
    void _k_toggleSpeedbar( bool );
    void _k_toggleBookmarks( bool );
    void _k_slotAutoSelectExtClicked();
    void _k_placesViewSplitterMoved(int, int);
    void _k_activateUrlNavigator();
    void _k_zoomOutIconsSize();
    void _k_zoomInIconsSize();
    void _k_slotIconSizeSliderMoved(int);
    void _k_slotIconSizeChanged(int);
    void _k_slotViewDoubleClicked(const QModelIndex&);

    void addToRecentDocuments();

    QString locationEditCurrentText() const;

    /**
     * KIO::NetAccess::mostLocalUrl local replacement.
     * This method won't show any progress dialogs for stating, since
     * they are very annoying when stating.
     */
    static KUrl mostLocalUrl(const KUrl &url);

    void setInlinePreviewShown(bool show);

    KFileWidget* q;

    // the last selected url
    KUrl url;

    // the selected filenames in multiselection mode -- FIXME
    QString filenames;

    // now following all kind of widgets, that I need to rebuild
    // the geometry management
    QBoxLayout *boxLayout;
    QGridLayout *lafBox;
    QVBoxLayout *vbox;

    QLabel *locationLabel;
    QWidget *opsWidget;
    QWidget *pathSpacer;

    QLabel *filterLabel;
    KUrlNavigator *urlNavigator;
    KPushButton *okButton, *cancelButton;
    QDockWidget *placesDock;
    KFilePlacesView *placesView;
    QSplitter *placesViewSplitter;
    // caches the places view width. This value will be updated when the splitter
    // is moved. This allows us to properly set a value when the dialog itself
    // is resized
    int placesViewWidth;

    QWidget *labeledCustomWidget;
    QWidget *bottomCustomWidget;

    // Automatically Select Extension stuff
    QCheckBox *autoSelectExtCheckBox;
    QString extension; // current extension for this filter

    QList<KIO::StatJob*> statJobs;

    KUrl::List urlList; //the list of selected urls

    KFileWidget::OperationMode operationMode;

    // The file class used for KRecentDirs
    QString fileClass;

    KFileBookmarkHandler *bookmarkHandler;

    KActionMenu* bookmarkButton;

    KToolBar *toolbar;
    KUrlComboBox *locationEdit;
    KDirOperator *ops;
    KFileFilterCombo *filterWidget;

    KFilePlacesModel *model;

    // whether or not the _user_ has checked the above box
    bool autoSelectExtChecked : 1;

    // indicates if the location edit should be kept or cleared when changing
    // directories
    bool keepLocation : 1;

    // the KDirOperators view is set in KFileWidget::show(), so to avoid
    // setting it again and again, we have this nice little boolean :)
    bool hasView : 1;

    bool hasDefaultFilter : 1; // necessary for the operationMode
    bool autoDirectoryFollowing : 1;
    bool inAccept : 1; // true between beginning and end of accept()
    bool dummyAdded : 1; // if the dummy item has been added. This prevents the combo from having a
                     // blank item added when loaded
    bool confirmOverwrite : 1;
    bool differentHierarchyLevelItemsEntered;

    KFilePreviewGenerator *previewGenerator;
    QSlider *iconSizeSlider;
};

K_GLOBAL_STATIC(KUrl, lastDirectory) // to set the start path

static const char autocompletionWhatsThisText[] = I18N_NOOP("<qt>While typing in the text area, you may be presented "
                                                  "with possible matches. "
                                                  "This feature can be controlled by clicking with the right mouse button "
                                                  "and selecting a preferred mode from the <b>Text Completion</b> menu.</qt>");

// returns true if the string contains "<a>:/" sequence, where <a> is at least 2 alpha chars
static bool containsProtocolSection( const QString& string )
{
    int len = string.length();
    static const char prot[] = ":/";
    for (int i=0; i < len;) {
        i = string.indexOf( QLatin1String(prot), i );
        if (i == -1)
            return false;
        int j=i-1;
        for (; j >= 0; j--) {
            const QChar& ch( string[j] );
            if (ch.toAscii() == 0 || !ch.isLetter())
                break;
            if (ch.isSpace() && (i-j-1) >= 2)
                return true;
        }
        if (j < 0 && i >= 2)
            return true; // at least two letters before ":/"
        i += 3; // skip : and / and one char
    }
    return false;
}

KFileWidget::KFileWidget( const KUrl& _startDir, QWidget *parent )
    : QWidget(parent), KAbstractFileWidget(), d(new KFileWidgetPrivate(this))
{
    KUrl startDir(_startDir);
    QString filename;

    d->okButton = new KPushButton(KStandardGuiItem::ok(), this);
    d->okButton->setDefault(true);
    d->cancelButton = new KPushButton(KStandardGuiItem::cancel(), this);
    // The dialog shows them
    d->okButton->hide();
    d->cancelButton->hide();

    d->opsWidget = new QWidget(this);
    QVBoxLayout *opsWidgetLayout = new QVBoxLayout(d->opsWidget);
    opsWidgetLayout->setMargin(0);
    //d->toolbar = new KToolBar(this, true);
    d->toolbar = new KToolBar(d->opsWidget, true);
    d->toolbar->setObjectName("KFileWidget::toolbar");
    d->toolbar->setMovable(false);
    opsWidgetLayout->addWidget(d->toolbar);

    d->model = new KFilePlacesModel(this);
    d->urlNavigator = new KUrlNavigator(d->model, startDir, d->opsWidget); //d->toolbar);
    d->urlNavigator->setPlacesSelectorVisible(false);
    opsWidgetLayout->addWidget(d->urlNavigator);

    KUrl u;
    KUrlComboBox *pathCombo = d->urlNavigator->editor();
#ifdef Q_WS_WIN
    foreach( const QFileInfo &drive,QFSFileEngine::drives() )
    {
        u.setPath( drive.filePath() );
        pathCombo->addDefaultUrl(u,
                                 KIO::pixmapForUrl( u, 0, KIconLoader::Small ),
                                 i18n("Drive: %1",  u.toLocalFile()));
    }
#else
    u.setPath(QDir::rootPath());
    pathCombo->addDefaultUrl(u,
                             KIO::pixmapForUrl(u, 0, KIconLoader::Small),
                             u.toLocalFile());
#endif

    u.setPath(QDir::homePath());
    pathCombo->addDefaultUrl(u, KIO::pixmapForUrl(u, 0, KIconLoader::Small),
                             u.path(KUrl::AddTrailingSlash));

    KUrl docPath;
    docPath.setPath( KGlobalSettings::documentPath() );
    if ( (u.path(KUrl::AddTrailingSlash) != docPath.path(KUrl::AddTrailingSlash)) &&
          QDir(docPath.path(KUrl::AddTrailingSlash)).exists() )
    {
        pathCombo->addDefaultUrl( docPath,
                                  KIO::pixmapForUrl( docPath, 0, KIconLoader::Small ),
                                  docPath.path(KUrl::AddTrailingSlash));
    }

    u.setPath( KGlobalSettings::desktopPath() );
    pathCombo->addDefaultUrl(u,
                             KIO::pixmapForUrl(u, 0, KIconLoader::Small),
                             u.path(KUrl::AddTrailingSlash));

    d->ops = new KDirOperator(KUrl(), d->opsWidget);
    d->ops->setObjectName( "KFileWidget::ops" );
    d->ops->setIsSaving(d->operationMode == Saving);
    opsWidgetLayout->addWidget(d->ops);
    connect(d->ops, SIGNAL(urlEntered(const KUrl&)),
            SLOT(_k_urlEntered(const KUrl&)));
    connect(d->ops, SIGNAL(fileHighlighted(const KFileItem &)),
            SLOT(_k_fileHighlighted(const KFileItem &)));
    connect(d->ops, SIGNAL(fileSelected(const KFileItem &)),
            SLOT(_k_fileSelected(const KFileItem &)));
    connect(d->ops, SIGNAL(finishedLoading()),
            SLOT(_k_slotLoadingFinished()));

    d->ops->setupMenu(KDirOperator::SortActions |
                   KDirOperator::FileActions |
                   KDirOperator::ViewActions);
    KActionCollection *coll = d->ops->actionCollection();

    // add nav items to the toolbar
    //
    // NOTE:  The order of the button icons here differs from that
    // found in the file manager and web browser, but has been discussed
    // and agreed upon on the kde-core-devel mailing list:
    //
    // http://lists.kde.org/?l=kde-core-devel&m=116888382514090&w=2

    coll->action( "up" )->setWhatsThis(i18n("<qt>Click this button to enter the parent folder.<br /><br />"
                                            "For instance, if the current location is file:/home/%1 clicking this "
                                            "button will take you to file:/home.</qt>",  KUser().loginName() ));

    coll->action( "back" )->setWhatsThis(i18n("Click this button to move backwards one step in the browsing history."));
    coll->action( "forward" )->setWhatsThis(i18n("Click this button to move forward one step in the browsing history."));

    coll->action( "reload" )->setWhatsThis(i18n("Click this button to reload the contents of the current location."));
    coll->action( "mkdir" )->setShortcut( QKeySequence(Qt::Key_F10) );
    coll->action( "mkdir" )->setWhatsThis(i18n("Click this button to create a new folder."));

    KAction *goToNavigatorAction = coll->addAction( "gotonavigator", this, SLOT( _k_activateUrlNavigator() ) );
    goToNavigatorAction->setShortcut( QKeySequence(Qt::CTRL + Qt::Key_L) );

    KToggleAction *showSidebarAction =
        new KToggleAction(i18n("Show Places Navigation Panel"), this);
    coll->addAction("toggleSpeedbar", showSidebarAction);
    showSidebarAction->setShortcut( QKeySequence(Qt::Key_F9) );
    connect( showSidebarAction, SIGNAL( toggled( bool ) ),
             SLOT( _k_toggleSpeedbar( bool )) );

    KToggleAction *showBookmarksAction =
        new KToggleAction(i18n("Show Bookmarks"), this);
    coll->addAction("toggleBookmarks", showBookmarksAction);
    connect( showBookmarksAction, SIGNAL( toggled( bool ) ),
             SLOT( _k_toggleBookmarks( bool )) );

    KActionMenu *menu = new KActionMenu( KIcon("configure"), i18n("Options"), this);
    coll->addAction("extra menu", menu);
    menu->setWhatsThis(i18n("<qt>This is the preferences menu for the file dialog. "
                            "Various options can be accessed from this menu including: <ul>"
                            "<li>how files are sorted in the list</li>"
                            "<li>types of view, including icon and list</li>"
                            "<li>showing of hidden files</li>"
                            "<li>the Places navigation panel</li>"
                            "<li>file previews</li>"
                            "<li>separating folders from files</li></ul></qt>"));
    menu->addAction(coll->action("sorting menu"));
    menu->addAction(coll->action("view menu"));
    menu->addSeparator();
    menu->addAction(coll->action("decoration menu"));
    menu->addSeparator();
    coll->action( "show hidden" )->setShortcut( QKeySequence(Qt::Key_F8) );
    menu->addAction( coll->action( "show hidden" ));
    menu->addAction( showSidebarAction );
    menu->addAction( showBookmarksAction );
    coll->action( "inline preview" )->setShortcut( QKeySequence(Qt::Key_F11) );
    menu->addAction( coll->action( "preview" ));

    menu->setDelayed( false );
    connect( menu->menu(), SIGNAL( aboutToShow() ),
             d->ops, SLOT( updateSelectionDependentActions() ));

    d->iconSizeSlider = new QSlider(this);
    d->iconSizeSlider->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Fixed);
    d->iconSizeSlider->setOrientation(Qt::Horizontal);
    d->iconSizeSlider->setMinimum(0);
    d->iconSizeSlider->setMaximum(100);
    d->iconSizeSlider->installEventFilter(this);
    connect(d->iconSizeSlider, SIGNAL(valueChanged(int)),
            d->ops, SLOT(setIconsZoom(int)));
    connect(d->iconSizeSlider, SIGNAL(valueChanged(int)),
            this, SLOT(_k_slotIconSizeChanged(int)));
    connect(d->iconSizeSlider, SIGNAL(sliderMoved(int)),
            this, SLOT(_k_slotIconSizeSliderMoved(int)));
    connect(d->ops, SIGNAL(currentIconSizeChanged(int)),
            d->iconSizeSlider, SLOT(setValue(int)));

    KAction *furtherAction = new KAction(KIcon("zoom-out"), i18n("Zoom out"), this);
    connect(furtherAction, SIGNAL(triggered()), SLOT(_k_zoomOutIconsSize()));
    KAction *closerAction = new KAction(KIcon("zoom-in"), i18n("Zoom in"), this);
    connect(closerAction, SIGNAL(triggered()), SLOT(_k_zoomInIconsSize()));

    QWidget *midSpacer = new QWidget(this);
    midSpacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);

    QAction *separator = new QAction(this);
    separator->setSeparator(true);

    QAction *separator2 = new QAction(this);
    separator2->setSeparator(true);

    d->toolbar->addAction(coll->action("back" ));
    d->toolbar->addAction(coll->action("forward"));
    d->toolbar->addAction(coll->action("up"));
    d->toolbar->addAction(coll->action("reload"));
    d->toolbar->addAction(separator);
    d->toolbar->addAction(coll->action("inline preview"));
    d->toolbar->addWidget(midSpacer);
    d->toolbar->addAction(furtherAction);
    d->toolbar->addWidget(d->iconSizeSlider);
    d->toolbar->addAction(closerAction);
    d->toolbar->addAction(separator2);
    d->toolbar->addAction(coll->action("mkdir"));
    d->toolbar->addAction(menu);

    d->toolbar->setToolButtonStyle(Qt::ToolButtonIconOnly);
    d->toolbar->setMovable(false);

    KUrlCompletion *pathCompletionObj = new KUrlCompletion( KUrlCompletion::DirCompletion );
    pathCompletionObj->setIgnoreCase(true);
    pathCombo->setCompletionObject( pathCompletionObj );
    pathCombo->setAutoDeleteCompletionObject( true );

    connect( d->urlNavigator, SIGNAL( urlChanged( const KUrl&  )),
             this,  SLOT( _k_enterUrl( const KUrl& ) ));
    connect( d->urlNavigator, SIGNAL( returnPressed() ),
             d->ops,  SLOT( setFocus() ));

    QString whatsThisText;

    // the Location label/edit
    d->locationLabel = new QLabel(i18n("&Name:"), this);
    d->locationEdit = new KUrlComboBox(KUrlComboBox::Files, true, this);
    d->locationEdit->installEventFilter(this);
    // Properly let the dialog be resized (to smaller). Otherwise we could have
    // huge dialogs that can't be resized to smaller (it would be as big as the longest
    // item in this combo box). (ereslibre)
    d->locationEdit->setSizeAdjustPolicy(QComboBox::AdjustToMinimumContentsLength);
    connect( d->locationEdit, SIGNAL( editTextChanged( const QString& ) ),
             SLOT( _k_slotLocationChanged( const QString& )) );

    d->updateLocationWhatsThis();
    d->locationLabel->setBuddy(d->locationEdit);

    KUrlCompletion *fileCompletionObj = new KUrlCompletion( KUrlCompletion::FileCompletion );
    fileCompletionObj->setIgnoreCase(true);
    d->locationEdit->setCompletionObject( fileCompletionObj );
    d->locationEdit->setAutoDeleteCompletionObject( true );
    connect( fileCompletionObj, SIGNAL( match( const QString& ) ),
             SLOT( _k_fileCompletion( const QString& )) );

    connect(d->locationEdit, SIGNAL( returnPressed( const QString&  )),
            this,  SLOT( _k_locationAccepted( const QString& ) ));

    // the Filter label/edit
    whatsThisText = i18n("<qt>This is the filter to apply to the file list. "
                         "File names that do not match the filter will not be shown.<p>"
                         "You may select from one of the preset filters in the "
                         "drop down menu, or you may enter a custom filter "
                         "directly into the text area.</p><p>"
                         "Wildcards such as * and ? are allowed.</p></qt>");
    d->filterLabel = new QLabel(i18n("&Filter:"), this);
    d->filterLabel->setWhatsThis(whatsThisText);
    d->filterWidget = new KFileFilterCombo(this);
    // Properly let the dialog be resized (to smaller). Otherwise we could have
    // huge dialogs that can't be resized to smaller (it would be as big as the longest
    // item in this combo box). (ereslibre)
    d->filterWidget->setSizeAdjustPolicy(QComboBox::AdjustToMinimumContentsLength);
    d->filterWidget->setWhatsThis(whatsThisText);
    d->filterLabel->setBuddy(d->filterWidget);
    connect(d->filterWidget, SIGNAL(filterChanged()), SLOT(_k_slotFilterChanged()));

    // the Automatically Select Extension checkbox
    // (the text, visibility etc. is set in updateAutoSelectExtension(), which is called by readConfig())
    d->autoSelectExtCheckBox = new QCheckBox (this);
    d->autoSelectExtCheckBox->setStyleSheet(QString("QCheckBox { padding-top: %1px; }").arg(KDialog::spacingHint()));
    connect(d->autoSelectExtCheckBox, SIGNAL(clicked()), SLOT(_k_slotAutoSelectExtClicked()));

    d->initGUI(); // activate GM

    // read our configuration
    KSharedConfig::Ptr config = KGlobal::config();
    KConfigGroup viewConfigGroup(config, ConfigGroup);
    d->readConfig(viewConfigGroup);

    coll->action("inline preview")->setChecked(d->ops->isInlinePreviewShown());
    d->iconSizeSlider->setValue(d->ops->iconsZoom());

    KFilePreviewGenerator *pg = d->ops->previewGenerator();
    if (pg) {
        coll->action("inline preview")->setChecked(pg->isPreviewShown());
    }

    d->url = getStartUrl( startDir, d->fileClass );
    startDir = d->url;

    KIO::StatJob *statJob = KIO::stat(startDir, KIO::HideProgressInfo);
    bool res = KIO::NetAccess::synchronousRun(statJob, 0);
    if (!res || !statJob->statResult().isDir()) {
        startDir.adjustPath(KUrl::RemoveTrailingSlash);
        filename = startDir.fileName();
        startDir.setFileName(QString());
    }

    d->ops->setUrl(startDir, true);
    d->urlNavigator->setUrl(startDir);
    if (d->placesView) {
        d->placesView->setUrl(startDir);
    }

    // we know it is not a dir, and we could stat it. Set it.
    if (!filename.isEmpty()) {
        if (res) {
            d->setLocationText(filename);
        } else {
            d->locationEdit->lineEdit()->setText(filename);
        }
        d->locationEdit->lineEdit()->selectAll();
    }

    d->locationEdit->setFocus();
}

KFileWidget::~KFileWidget()
{
    KSharedConfig::Ptr config = KGlobal::config();
    config->sync();

    delete d;
}

void KFileWidget::setLocationLabel(const QString& text)
{
    d->locationLabel->setText(text);
}

void KFileWidget::setFilter(const QString& filter)
{
    int pos = filter.indexOf('/');

    // Check for an un-escaped '/', if found
    // interpret as a MIME filter.

    if (pos > 0 && filter[pos - 1] != '\\') {
        QStringList filters = filter.split(' ', QString::SkipEmptyParts);
        setMimeFilter( filters );
        return;
    }

    // Strip the escape characters from
    // escaped '/' characters.

    QString copy (filter);
    for (pos = 0; (pos = copy.indexOf("\\/", pos)) != -1; ++pos)
        copy.remove(pos, 1);

    d->ops->clearFilter();
    d->filterWidget->setFilter(copy);
    d->ops->setNameFilter(d->filterWidget->currentFilter());
    d->hasDefaultFilter = false;
    d->filterWidget->setEditable( true );

    d->updateAutoSelectExtension ();
}

QString KFileWidget::currentFilter() const
{
    return d->filterWidget->currentFilter();
}

void KFileWidget::setMimeFilter( const QStringList& mimeTypes,
                                 const QString& defaultType )
{
    d->filterWidget->setMimeFilter( mimeTypes, defaultType );

    QStringList types = d->filterWidget->currentFilter().split(' ', QString::SkipEmptyParts); //QStringList::split(" ", d->filterWidget->currentFilter());
    types.append( QLatin1String( "inode/directory" ));
    d->ops->clearFilter();
    d->ops->setMimeFilter( types );
    d->hasDefaultFilter = !defaultType.isEmpty();
    d->filterWidget->setEditable( !d->hasDefaultFilter ||
                               d->operationMode != Saving );

    d->updateAutoSelectExtension ();
}

void KFileWidget::clearFilter()
{
    d->filterWidget->setFilter( QString() );
    d->ops->clearFilter();
    d->hasDefaultFilter = false;
    d->filterWidget->setEditable( true );

    d->updateAutoSelectExtension ();
}

QString KFileWidget::currentMimeFilter() const
{
    int i = d->filterWidget->currentIndex();
    if (d->filterWidget->showsAllTypes() && i == 0)
        return QString(); // The "all types" item has no mimetype

    return d->filterWidget->filters()[i];
}

KMimeType::Ptr KFileWidget::currentFilterMimeType()
{
    return KMimeType::mimeType( currentMimeFilter() );
}

void KFileWidget::setPreviewWidget(KPreviewWidgetBase *w) {
    d->ops->setPreviewWidget(w);
    d->ops->clearHistory();
    d->hasView = true;
}

KUrl KFileWidgetPrivate::getCompleteUrl(const QString &_url) const
{
//     kDebug(kfile_area) << "got url " << _url;

    const QString url = KShell::tildeExpand(_url);
    KUrl u;

    if (QDir::isAbsolutePath(url)) {
        u = url;
    } else {
        KUrl relativeUrlTest(ops->url());
        relativeUrlTest.addPath(url);
        if (!ops->dirLister()->findByUrl(relativeUrlTest).isNull() ||
            !KProtocolInfo::isKnownProtocol(relativeUrlTest)) {
            u = relativeUrlTest;
        } else {
            u = url;
        }
    }

    return u;
}

// Called by KFileDialog
void KFileWidget::slotOk()
{
//     kDebug(kfile_area) << "slotOk\n";

    const KFileItemList items = d->ops->selectedItems();
    const QString locationEditCurrentText(KShell::tildeExpand(d->locationEditCurrentText()));

    KUrl::List locationEditCurrentTextList(d->tokenize(locationEditCurrentText));
    KFile::Modes mode = d->ops->mode();

    // if there is nothing to do, just return from here
    if (!locationEditCurrentTextList.count()) {
        return;
    }

    // Make sure that one of the modes was provided
    Q_ASSERT((mode & KFile::File) || (mode & KFile::Directory) || (mode & KFile::Files));

    // if we are on file mode, and the list of provided files/folder is greater than one, inform
    // the user about it
    if (locationEditCurrentTextList.count() > 1) {
        if (mode & KFile::File) {
            KMessageBox::sorry(this,
                               i18n("You can only select one file"),
                               i18n("More than one file provided"));
            return;
        }

        /**
          * Logic of the next part of code (ends at "end multi relative urls").
          *
          * We allow for instance to be at "/" and insert '"home/foo/bar.txt" "boot/grub/menu.lst"'.
          * Why we need to support this ? Because we provide tree views, which aren't plain.
          *
          * Now, how does this logic work. It will get the first element on the list (with no filename),
          * following the previous example say "/home/foo" and set it as the top most url.
          *
          * After this, it will iterate over the rest of items and check if this URL (topmost url)
          * contains the url being iterated.
          *
          * As you might have guessed it will do "/home/foo" against "/boot/grub" (again stripping
          * filename), and a false will be returned. Then we upUrl the top most url, resulting in
          * "/home" against "/boot/grub", what will again return false, so we upUrl again. Now we
          * have "/" against "/boot/grub", what returns true for us, so we can say that the closest
          * common ancestor of both is "/".
          *
          * This example has been written for 2 urls, but this works for any number of urls.
          */
        if (!d->differentHierarchyLevelItemsEntered) {     // avoid infinite recursion. running this
            KUrl::List urlList;                            // one time is always enough.
            int start = 0;
            KUrl topMostUrl;
            KIO::StatJob *statJob = 0;
            bool res = false;

            // we need to check for a valid first url, so in theory we only iterate one time over
            // this loop. However it can happen that the user did
            // "home/foo/nonexistantfile" "boot/grub/menu.lst", so we look for a good first
            // candidate.
            while (!res && start < locationEditCurrentTextList.count()) {
                topMostUrl = locationEditCurrentTextList.at(start);
                statJob = KIO::stat(topMostUrl, KIO::HideProgressInfo);
                res = KIO::NetAccess::synchronousRun(statJob, 0);
                start++;
            }

            // if this is not a dir, strip the filename. after this we have an existent and valid
            // dir (if we stated correctly the file, setting a null filename won't make any bad).
            if (!statJob->statResult().isDir()) {
                topMostUrl.setFileName(QString());
            }

            // now the funny part. for the rest of filenames, go and look for the closest ancestor
            // of all them.
            for (int i = start; i < locationEditCurrentTextList.count(); ++i) {
                KUrl currUrl = locationEditCurrentTextList.at(i);
                KIO::StatJob *statJob = KIO::stat(currUrl, KIO::HideProgressInfo);
                bool res = KIO::NetAccess::synchronousRun(statJob, 0);
                if (res) {
                    // again, we don't care about filenames
                    if (!statJob->statResult().isDir()) {
                        currUrl.setFileName(QString());
                    }

                    // iterate while this item is contained on the top most url
                    while (!topMostUrl.isParentOf(currUrl)) {
                        topMostUrl = topMostUrl.upUrl();
                    }
                }
            }

            // now recalculate all paths for them being relative in base of the top most url
            for (int i = 0; i < locationEditCurrentTextList.count(); ++i) {
                locationEditCurrentTextList[i] = KUrl::relativeUrl(topMostUrl, locationEditCurrentTextList[i]);
            }

            d->ops->setUrl(topMostUrl, true);
            const bool signalsBlocked = d->locationEdit->lineEdit()->blockSignals(true);
            QStringList stringList;
            foreach (const KUrl &url, locationEditCurrentTextList) {
                stringList << url.prettyUrl();
            }
            d->locationEdit->lineEdit()->setText(QString("\"%1\"").arg(stringList.join("\" \"")));
            d->locationEdit->lineEdit()->blockSignals(signalsBlocked);

            d->differentHierarchyLevelItemsEntered = true;
            slotOk();
            return;
        }
        /**
          * end multi relative urls
          */
    } else if (locationEditCurrentTextList.count()) {
        // if we are on file or files mode, and we have an absolute url written by
        // the user, convert it to relative
        if (!locationEditCurrentText.isEmpty() && !(mode & KFile::Directory) &&
            (QDir::isAbsolutePath(locationEditCurrentText) ||
             containsProtocolSection(locationEditCurrentText))) {

            QString fileName;
            KUrl url(locationEditCurrentText);
            KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
            bool res = KIO::NetAccess::synchronousRun(statJob, 0);
            if (res) {
                if (!statJob->statResult().isDir()) {
                    url.adjustPath(KUrl::RemoveTrailingSlash);
                    fileName = url.fileName();
                    url.setFileName(QString());
                } else {
                    url.adjustPath(KUrl::AddTrailingSlash);
                }
            }
            d->ops->setUrl(url, true);
            const bool signalsBlocked = d->locationEdit->lineEdit()->blockSignals(true);
            d->locationEdit->lineEdit()->setText(fileName);
            d->locationEdit->lineEdit()->blockSignals(signalsBlocked);
            slotOk();
            return;
        }
    }

    // restore it
    d->differentHierarchyLevelItemsEntered = false;

    // if we are on local mode, make sure we haven't got a remote base url
    if ((mode & KFile::LocalOnly) && !d->mostLocalUrl(d->url).isLocalFile()) {
        KMessageBox::sorry(this,
                           i18n("You can only select local files"),
                           i18n("Remote files not accepted"));
        return;
    }

    // locationEditCurrentTextList contains absolute paths
    // this is the general loop for the File and Files mode. Obviously we know
    // that the File mode will iterate only one time here
    bool directoryMode = (mode & KFile::Directory);
    bool onlyDirectoryMode = directoryMode && !(mode & KFile::File) && !(mode & KFile::Files);
    KUrl::List::ConstIterator it = locationEditCurrentTextList.constBegin();
    bool filesInList = false;
    while (it != locationEditCurrentTextList.constEnd()) {
        KUrl url(*it);

        if (d->operationMode == Saving && !directoryMode) {
            d->appendExtension(url);
        }

        d->url = url;
        KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
        bool res = KIO::NetAccess::synchronousRun(statJob, 0);

        if (!KAuthorized::authorizeUrlAction("open", KUrl(), url)) {
            QString msg = KIO::buildErrorString(KIO::ERR_ACCESS_DENIED, d->url.prettyUrl());
            KMessageBox::error(this, msg);
            return;
        }

        if ((d->operationMode == Saving) && d->confirmOverwrite && !d->toOverwrite(url)) {
            return;
        }

        // if we are given a folder when not on directory mode, let's get into it
        if (res && !directoryMode && statJob->statResult().isDir()) {
            // check if we were given more than one folder, in that case we don't know to which one
            // cd
            ++it;
            while (it != locationEditCurrentTextList.constEnd()) {
                KUrl checkUrl(*it);
                KIO::StatJob *checkStatJob = KIO::stat(checkUrl, KIO::HideProgressInfo);
                bool res = KIO::NetAccess::synchronousRun(checkStatJob, 0);
                if (res && checkStatJob->statResult().isDir()) {
                    KMessageBox::sorry(this, i18n("More than one folder has been selected and this dialog does not accept folders, so it is not possible to decide in which one enter. Please select only one folder to list it"), i18n("More than one folder provided"));
                    return;
                } else if (res) {
                    filesInList = true;
                }
                ++it;
            }
            if (filesInList) {
                KMessageBox::information(this, i18n("At least one folder and one file has been selected. Selected files will be ignored and the selected folder will be listed"), i18n("Files and folders selected"));
            }
            d->ops->setUrl(url, true);
            const bool signalsBlocked = d->locationEdit->lineEdit()->blockSignals(true);
            d->locationEdit->lineEdit()->setText(QString());
            d->locationEdit->lineEdit()->blockSignals(signalsBlocked);
            return;
        } else if (!(mode & KFile::ExistingOnly) || res) {
            // if we don't care about ExistingOnly flag, add the file even if
            // it doesn't exist. If we care about it, don't add it to the list
            if (!onlyDirectoryMode || (res && statJob->statResult().isDir())) {
                d->urlList << url;
            }
            filesInList = true;
        } else {
            KMessageBox::sorry(this, i18n("The file %1 could not be found", url.url()), i18n("Cannot open file"));
            return; // do not emit accepted() if we had ExistingOnly flag and stat failed
        }
        ++it;
    }

    // if we have reached this point and we didn't return before, that is because
    // we want this dialog to be accepted
    emit accepted();
}

void KFileWidget::accept()
{
    d->inAccept = true; // parseSelectedUrls() checks that

    *lastDirectory = d->ops->url();
    if (!d->fileClass.isEmpty())
       KRecentDirs::add(d->fileClass, d->ops->url().url());

    // clear the topmost item, we insert it as full path later on as item 1
    d->locationEdit->setItemText( 0, QString() );

    const KUrl::List list = selectedUrls();
    QList<KUrl>::const_iterator it = list.begin();
    int atmost = d->locationEdit->maxItems(); //don't add more items than necessary
    for ( ; it != list.end() && atmost > 0; ++it ) {
        const KUrl& url = *it;
        // we strip the last slash (-1) because KUrlComboBox does that as well
        // when operating in file-mode. If we wouldn't , dupe-finding wouldn't
        // work.
        QString file = url.isLocalFile() ? url.path(KUrl::RemoveTrailingSlash) : url.prettyUrl(KUrl::RemoveTrailingSlash);

        // remove dupes
        for ( int i = 1; i < d->locationEdit->count(); i++ ) {
            if ( d->locationEdit->itemText( i ) == file ) {
                d->locationEdit->removeItem( i-- );
                break;
            }
        }
        //FIXME I don't think this works correctly when the KUrlComboBox has some default urls.
        //KUrlComboBox should provide a function to add an url and rotate the existing ones, keeping
        //track of maxItems, and we shouldn't be able to insert items as we please.
        d->locationEdit->insertItem( 1,file);
        atmost--;
    }

    KSharedConfig::Ptr config = KGlobal::config();
    KConfigGroup grp(config,ConfigGroup);
    d->writeConfig(grp);
    d->saveRecentFiles(grp);

    d->addToRecentDocuments();

    if (!(mode() & KFile::Files)) { // single selection
        emit fileSelected(d->url.url());
    }

    d->ops->close();
}


void KFileWidgetPrivate::_k_fileHighlighted(const KFileItem &i)
{
    const bool modified = locationEdit->lineEdit()->isModified();
    locationEdit->lineEdit()->setModified( false );

    if ((!i.isNull() && i.isDir() ) ||
        (locationEdit->hasFocus() && !locationEdit->currentText().isEmpty())) // don't disturb
        return;

    if (!(ops->mode() & KFile::Files)) {
        if (i.isNull()) {
            if (!modified) {
                setLocationText(KUrl());
            }
            return;
        }

        url = i.url();

        if (!locationEdit->hasFocus()) { // don't disturb while editing
            setLocationText( url );
        }

        emit q->fileHighlighted(url.url());
    } else {
        multiSelectionChanged();
        emit q->selectionChanged();
    }

    locationEdit->lineEdit()->selectAll();
}

void KFileWidgetPrivate::_k_fileSelected(const KFileItem &i)
{
    if (!i.isNull() && i.isDir()) {
        return;
    }

    if (!(ops->mode() & KFile::Files)) {
        if (i.isNull()) {
            setLocationText(KUrl());
            return;
        }
        setLocationText(i.url());
    } else {
        multiSelectionChanged();
        emit q->selectionChanged();
    }

    // if we are saving, let another chance to the user before accepting the dialog (or trying to
    // accept). This way the user can choose a file and add a "_2" for instance to the filename
    if (operationMode != KFileWidget::Saving) {
        q->slotOk();
    }
}


// I know it's slow to always iterate thru the whole filelist
// (d->ops->selectedItems()), but what can we do?
void KFileWidgetPrivate::multiSelectionChanged()
{
    if (locationEdit->hasFocus() && !locationEdit->currentText().isEmpty()) { // don't disturb
        return;
    }

    const KFileItemList list = ops->selectedItems();

    if (list.isEmpty()) {
        setLocationText(KUrl());
        return;
    }

    KUrl::List urlList;
    foreach (const KFileItem &fileItem, list) {
        urlList << fileItem.url();
    }

    setLocationText(urlList);
}

void KFileWidgetPrivate::setDummyHistoryEntry( const QString& text, const QPixmap& icon,
                                               bool usePreviousPixmapIfNull )
{
    // setCurrentItem() will cause textChanged() being emitted,
    // so slotLocationChanged() will be called. Make sure we don't clear
    // the KDirOperator's view-selection in there
    QObject::disconnect( locationEdit, SIGNAL( editTextChanged( const QString& ) ),
                        q, SLOT( _k_slotLocationChanged( const QString& ) ) );

    bool dummyExists = dummyAdded;

    int cursorPosition = locationEdit->lineEdit()->cursorPosition();

    if ( dummyAdded ) {
        if ( !icon.isNull() ) {
            locationEdit->setItemIcon( 0, icon );
            locationEdit->setItemText( 0, text );
        } else {
            if ( !usePreviousPixmapIfNull ) {
                locationEdit->setItemIcon( 0, QPixmap() );
            }
            locationEdit->setItemText( 0, text );
        }
    } else {
        if ( !text.isEmpty() ) {
            if ( !icon.isNull() ) {
                locationEdit->insertItem( 0, icon, text );
            } else {
                if ( !usePreviousPixmapIfNull ) {
                    locationEdit->insertItem( 0, QPixmap(), text );
                } else {
                    locationEdit->insertItem( 0, text );
                }
            }
            dummyAdded = true;
            dummyExists = true;
        }
    }

    if ( dummyExists && !text.isEmpty() ) {
        locationEdit->setCurrentIndex( 0 );
    }

    locationEdit->lineEdit()->setCursorPosition( cursorPosition );

    QObject::connect( locationEdit, SIGNAL( editTextChanged ( const QString& ) ),
                    q, SLOT( _k_slotLocationChanged( const QString& )) );
}

void KFileWidgetPrivate::removeDummyHistoryEntry()
{
    if ( !dummyAdded ) {
        return;
    }

    // setCurrentItem() will cause textChanged() being emitted,
    // so slotLocationChanged() will be called. Make sure we don't clear
    // the KDirOperator's view-selection in there
    QObject::disconnect( locationEdit, SIGNAL( editTextChanged( const QString& ) ),
                        q, SLOT( _k_slotLocationChanged( const QString& ) ) );

    locationEdit->removeItem( 0 );
    locationEdit->setCurrentIndex( -1 );
    dummyAdded = false;

    QObject::connect( locationEdit, SIGNAL( editTextChanged ( const QString& ) ),
                    q, SLOT( _k_slotLocationChanged( const QString& )) );
}

void KFileWidgetPrivate::setLocationText(const KUrl& url)
{
    if (!url.isEmpty()) {
        QPixmap mimeTypeIcon = KIconLoader::global()->loadMimeTypeIcon( KMimeType::iconNameForUrl( url ), KIconLoader::Small );
        if (url.hasPath()) {
            q->setUrl(url.path(), false);
        }
        setDummyHistoryEntry(url.fileName() , mimeTypeIcon );
    } else {
        removeDummyHistoryEntry();
    }

    // don't change selection when user has clicked on an item
    if (operationMode == KFileWidget::Saving && !locationEdit->isVisible()) {
       setNonExtSelection();
    }
}

void KFileWidgetPrivate::setLocationText( const KUrl::List& urlList )
{
    const KUrl currUrl = ops->url();

    if ( urlList.count() > 1 ) {
        QString urls;
        foreach (const KUrl &url, urlList) {
            urls += QString( "\"%1\"" ).arg( KUrl::relativeUrl(currUrl, url) ) + ' ';
        }
        urls = urls.left( urls.size() - 1 );

        setDummyHistoryEntry( urls, QPixmap(), false );
    } else if ( urlList.count() ) {
        const QPixmap mimeTypeIcon = KIconLoader::global()->loadMimeTypeIcon( KMimeType::iconNameForUrl( urlList[0] ),  KIconLoader::Small );
        setDummyHistoryEntry( KUrl::relativeUrl(currUrl, urlList[0]), mimeTypeIcon );
    } else {
        removeDummyHistoryEntry();
    }

    // don't change selection when user has clicked on an item
    if ( operationMode == KFileWidget::Saving && !locationEdit->isVisible())
       setNonExtSelection();
}

void KFileWidgetPrivate::updateLocationWhatsThis()
{
    QString whatsThisText;
    if (operationMode == KFileWidget::Saving)
    {
        whatsThisText = "<qt>" + i18n("This is the name to save the file as.") +
                             i18n (autocompletionWhatsThisText);
    }
    else if (ops->mode() & KFile::Files)
    {
        whatsThisText = "<qt>" + i18n("This is the list of files to open. More than "
                             "one file can be specified by listing several "
                             "files, separated by spaces.") +
                              i18n (autocompletionWhatsThisText);
    }
    else
    {
        whatsThisText = "<qt>" + i18n("This is the name of the file to open.") +
                             i18n (autocompletionWhatsThisText);
    }

    locationLabel->setWhatsThis(whatsThisText);
    locationEdit->setWhatsThis(whatsThisText);
}

void KFileWidgetPrivate::initSpeedbar()
{
    if (placesDock) {
        return;
    }

    placesDock = new QDockWidget(i18n("Places"), q);
    placesDock->setFeatures(QDockWidget::DockWidgetClosable);

    placesView = new KFilePlacesView(placesDock);
    placesView->setModel(model);
    placesView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);

    placesView->setObjectName(QLatin1String("url bar"));
    QObject::connect(placesView, SIGNAL(urlChanged(KUrl)),
                     q, SLOT(_k_enterUrl(KUrl)));

    // need to set the current url of the urlbar manually (not via urlEntered()
    // here, because the initial url of KDirOperator might be the same as the
    // one that will be set later (and then urlEntered() won't be emitted).
    // TODO: KDE5 ### REMOVE THIS when KDirOperator's initial URL (in the c'tor) is gone.
    placesView->setUrl(url);

    placesDock->setWidget(placesView);
    placesViewSplitter->insertWidget(0, placesDock);

    // initialize the size of the splitter
    KConfigGroup configGroup(KGlobal::config(), ConfigGroup);
    placesViewWidth = configGroup.readEntry(SpeedbarWidth, placesView->sizeHint().width());

    QList<int> sizes = placesViewSplitter->sizes();
    if (placesViewWidth > 0) {
        sizes[0] = placesViewWidth + 1;
        sizes[1] = q->width() - placesViewWidth -1;
        placesViewSplitter->setSizes(sizes);
    }

    QObject::connect(placesDock, SIGNAL(visibilityChanged(bool)),
                     q, SLOT(_k_toggleSpeedbar(bool)));
}

void KFileWidgetPrivate::initGUI()
{
    delete boxLayout; // deletes all sub layouts

    boxLayout = new QVBoxLayout( q);
    boxLayout->setMargin(0); // no additional margin to the already existing
    boxLayout->setSpacing(0);

    placesViewSplitter = new QSplitter(q);
    placesViewSplitter->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    placesViewSplitter->setChildrenCollapsible(false);
    boxLayout->addWidget(placesViewSplitter);

    QObject::connect(placesViewSplitter, SIGNAL(splitterMoved(int,int)),
                     q, SLOT(_k_placesViewSplitterMoved(int,int)));
    placesViewSplitter->insertWidget(0, opsWidget);

    vbox = new QVBoxLayout();
    vbox->setMargin(0);
    vbox->addSpacing(KDialog::spacingHint());
    boxLayout->addLayout(vbox);

    lafBox = new QGridLayout();

    lafBox->setSpacing(KDialog::spacingHint());
    lafBox->addWidget(locationLabel, 0, 0, Qt::AlignVCenter | Qt::AlignRight);
    lafBox->addWidget(locationEdit, 0, 1, Qt::AlignVCenter);
    lafBox->addWidget(okButton, 0, 2, Qt::AlignVCenter);

    lafBox->addWidget(filterLabel, 1, 0, Qt::AlignVCenter | Qt::AlignRight);
    lafBox->addWidget(filterWidget, 1, 1, Qt::AlignVCenter);
    lafBox->addWidget(cancelButton, 1, 2, Qt::AlignVCenter);

    lafBox->setColumnStretch(1, 4);

    vbox->addLayout(lafBox);

    // add the Automatically Select Extension checkbox
    vbox->addWidget(autoSelectExtCheckBox);

    q->setTabOrder(ops, autoSelectExtCheckBox);
    q->setTabOrder(autoSelectExtCheckBox, locationEdit);
    q->setTabOrder(locationEdit, filterWidget);
    q->setTabOrder(filterWidget, okButton);
    q->setTabOrder(okButton, cancelButton);
    q->setTabOrder(cancelButton, urlNavigator);
    q->setTabOrder(urlNavigator, ops);
    q->setTabOrder(cancelButton, urlNavigator);
    q->setTabOrder(urlNavigator, ops);

}

void KFileWidgetPrivate::_k_slotFilterChanged()
{
//     kDebug(kfile_area);

    QString filter = filterWidget->currentFilter();
    ops->clearFilter();

    if ( filter.indexOf( '/' ) > -1 ) {
        QStringList types = filter.split(' ', QString::SkipEmptyParts);
        types.prepend("inode/directory");
        ops->setMimeFilter( types );
    }
    else
        ops->setNameFilter( filter );

    ops->updateDir();

    updateAutoSelectExtension();

    emit q->filterChanged(filter);
}


void KFileWidget::setUrl(const KUrl& url, bool clearforward)
{
//     kDebug(kfile_area);

    d->ops->setUrl(url, clearforward);
}

// Protected
void KFileWidgetPrivate::_k_urlEntered(const KUrl& url)
{
//     kDebug(kfile_area);

    QString filename = locationEditCurrentText();

    KUrlComboBox* pathCombo = urlNavigator->editor();
    if (pathCombo->count() != 0) { // little hack
        pathCombo->setUrl(url);
    }

    bool blocked = locationEdit->blockSignals(true);
    if (keepLocation) {
        locationEdit->changeUrl(0, KIcon(KMimeType::iconNameForUrl(filename)), filename);
        locationEdit->lineEdit()->setModified(true);
    }

    locationEdit->blockSignals( blocked );

    urlNavigator->setUrl(url);

    // is trigged in ctor before completion object is set
    KUrlCompletion *completion = dynamic_cast<KUrlCompletion*>(locationEdit->completionObject());
    if (completion) {
        completion->setDir( url.path() );
    }

    if (placesView) {
        placesView->setUrl( url );
    }
}

void KFileWidgetPrivate::_k_locationAccepted(const QString &url)
{
    Q_UNUSED(url);
//     kDebug(kfile_area);
    q->slotOk();
}

void KFileWidgetPrivate::_k_enterUrl( const KUrl& url )
{
//     kDebug(kfile_area);

    KUrl fixedUrl( url );
    // append '/' if needed: url combo does not add it
    // tokenize() expects it because uses KUrl::setFileName()
    fixedUrl.adjustPath( KUrl::AddTrailingSlash );
    q->setUrl( fixedUrl );
    if (!locationEdit->hasFocus())
        ops->setFocus();
}

void KFileWidgetPrivate::_k_enterUrl( const QString& url )
{
//     kDebug(kfile_area);

    _k_enterUrl( KUrl( KUrlCompletion::replacedPath( url, true, true )) );
}

bool KFileWidgetPrivate::toOverwrite(const KUrl &url)
{
//     kDebug(kfile_area);

    KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
    bool res = KIO::NetAccess::synchronousRun(statJob, 0);

    if (res) {
        int ret = KMessageBox::warningContinueCancel( q,
            i18n( "The file \"%1\" already exists. Do you wish to overwrite it?" ,
            url.fileName() ), i18n( "Overwrite File?" ), KStandardGuiItem::overwrite());

        if (ret != KMessageBox::Continue) {
            return false;
        }
        return true;
    }

    return true;
}

void KFileWidget::setSelection(const QString& url)
{
//     kDebug(kfile_area) << "setSelection " << url;

    if (url.isEmpty()) {
        return;
    }

    KUrl u = d->getCompleteUrl(url);
    if (!u.isValid()) { // if it still is
        kWarning() << url << " is not a correct argument for setSelection!";
        return;
    }

    // Honor protocols that do not support directory listing
    if (!u.isRelative() && !KProtocolManager::supportsListing(u))
        return;

    d->setLocationText(url);
}

void KFileWidgetPrivate::_k_slotLoadingFinished()
{
    if (locationEdit->currentText().isEmpty()) {
        return;
    }

    ops->blockSignals(true);
    KUrl url = ops->url();
    url.adjustPath(KUrl::AddTrailingSlash);
    url.setFileName(locationEdit->currentText());
    ops->setCurrentItem(url.url());
    ops->blockSignals(false);
}

void KFileWidgetPrivate::_k_fileCompletion( const QString& match )
{
//     kDebug(kfile_area);

    if (match.isEmpty() || locationEdit->currentText().contains('"')) {
        return;
    }

    setDummyHistoryEntry(locationEdit->currentText(), KIconLoader::global()->loadMimeTypeIcon( KMimeType::iconNameForUrl( match ), KIconLoader::Small), !locationEdit->currentText().isEmpty());
}

void KFileWidgetPrivate::_k_slotLocationChanged( const QString& text )
{
//     kDebug(kfile_area);

    locationEdit->lineEdit()->setModified(true);

    if (text.isEmpty() && ops->view()) {
        ops->view()->clearSelection();
    }

    if (text.isEmpty()) {
        removeDummyHistoryEntry();
    } else {
        setDummyHistoryEntry( text );
    }

    if (!locationEdit->lineEdit()->text().isEmpty()) {
        const KUrl::List urlList(tokenize(text));
        QStringList stringList;
        foreach (const KUrl &url, urlList) {
            stringList << url.url();
        }
        ops->setCurrentItems(stringList);
    }

    updateFilter();
}

KUrl KFileWidget::selectedUrl() const
{
//     kDebug(kfile_area);

    if ( d->inAccept )
        return d->url;
    else
        return KUrl();
}

KUrl::List KFileWidget::selectedUrls() const
{
//     kDebug(kfile_area);

    KUrl::List list;
    if ( d->inAccept ) {
        if (d->ops->mode() & KFile::Files)
            list = d->parseSelectedUrls();
        else
            list.append( d->url );
    }
    return list;
}


KUrl::List& KFileWidgetPrivate::parseSelectedUrls()
{
//     kDebug(kfile_area);

    if ( filenames.isEmpty() ) {
        return urlList;
    }

    urlList.clear();
    if ( filenames.contains( '/' )) { // assume _one_ absolute filename
        KUrl u;
        if ( containsProtocolSection( filenames ) )
            u = filenames;
        else
            u.setPath( filenames );

        if ( u.isValid() )
            urlList.append( u );
        else
            KMessageBox::error( q,
                                i18n("The chosen filenames do not\n"
                                     "appear to be valid."),
                                i18n("Invalid Filenames") );
    }

    else
        urlList = tokenize( filenames );

    filenames.clear(); // indicate that we parsed that one

    return urlList;
}


// FIXME: current implementation drawback: a filename can't contain quotes
KUrl::List KFileWidgetPrivate::tokenize( const QString& line ) const
{
//     kDebug(kfile_area);

    KUrl::List urls;
    KUrl u( ops->url() );
    u.adjustPath(KUrl::AddTrailingSlash);
    QString name;

    const int count = line.count( QLatin1Char( '"' ) );
    if ( count == 0 ) { // no " " -> assume one single file
        if (!QDir::isAbsolutePath(line)) {
            u.setFileName( line );
            if ( u.isValid() )
                urls.append( u );
        } else {
            urls << KUrl(line);
        }

        return urls;
    }

    int start = 0;
    int index1 = -1, index2 = -1;
    while ( true ) {
        index1 = line.indexOf( '"', start );
        index2 = line.indexOf( '"', index1 + 1 );

        if ( index1 < 0 || index2 < 0 )
            break;

        // get everything between the " "
        name = line.mid( index1 + 1, index2 - index1 - 1 );

        // since we use setFileName we need to do this under a temporary url
        KUrl _u( u );
        KUrl currUrl( name );

        if ( !QDir::isAbsolutePath(currUrl.url()) ) {
            _u.setFileName( name );
        } else {
            // we allow to insert various absolute paths like:
            // "/home/foo/bar.txt" "/boot/grub/menu.lst"
            _u = currUrl;
        }

        if ( _u.isValid() ) {
            urls.append( _u );
        }

        start = index2 + 1;
    }

    return urls;
}


QString KFileWidget::selectedFile() const
{
//     kDebug(kfile_area);

    if ( d->inAccept ) {
        const KUrl url = d->mostLocalUrl(d->url);
        if (url.isLocalFile())
            return url.path();
        else {
            KMessageBox::sorry( const_cast<KFileWidget*>(this),
                                i18n("You can only select local files."),
                                i18n("Remote Files Not Accepted") );
        }
    }
    return QString();
}

QStringList KFileWidget::selectedFiles() const
{
//     kDebug(kfile_area);

    QStringList list;

    if (d->inAccept) {
        if (d->ops->mode() & KFile::Files) {
            const KUrl::List urls = d->parseSelectedUrls();
            QList<KUrl>::const_iterator it = urls.begin();
            while (it != urls.end()) {
                KUrl url = d->mostLocalUrl(*it);
                if (url.isLocalFile())
                    list.append(url.path());
                ++it;
            }
        }

        else { // single-selection mode
            if ( d->url.isLocalFile() )
                list.append( d->url.path() );
        }
    }

    return list;
}

KUrl KFileWidget::baseUrl() const
{
    return d->ops->url();
}

void KFileWidget::resizeEvent(QResizeEvent* event)
{
    QWidget::resizeEvent(event);

    if (d->placesDock) {
        // we don't want our places dock actually changing size when we resize
        // and qt doesn't make it easy to enforce such a thing with QSplitter
        QList<int> sizes = d->placesViewSplitter->sizes();
        sizes[0] = d->placesViewWidth + 1; // without this pixel, our places view is reduced 1 pixel each time is shown.
        sizes[1] = width() - d->placesViewWidth - 1;
        d->placesViewSplitter->setSizes( sizes );
    }
}

void KFileWidget::showEvent(QShowEvent* event)
{
    if ( !d->hasView ) { // delayed view-creation
        Q_ASSERT( d );
        Q_ASSERT( d->ops );
        d->ops->setView( KFile::Default );
        d->ops->view()->setSizePolicy( QSizePolicy( QSizePolicy::Maximum, QSizePolicy::Maximum ) );
        d->hasView = true;

        connect(d->ops->view(), SIGNAL(doubleClicked(QModelIndex)), this, SLOT(_k_slotViewDoubleClicked(QModelIndex)));
    }
    d->ops->clearHistory();

    QWidget::showEvent(event);
}

bool KFileWidget::eventFilter(QObject* watched, QEvent* event)
{
    const bool res = QWidget::eventFilter(watched, event);

    QKeyEvent *keyEvent = dynamic_cast<QKeyEvent*>(event);
    if (watched == d->iconSizeSlider && keyEvent) {
        if (keyEvent->key() == Qt::Key_Left || keyEvent->key() == Qt::Key_Up ||
            keyEvent->key() == Qt::Key_Right || keyEvent->key() == Qt::Key_Down) {
            d->_k_slotIconSizeSliderMoved(d->iconSizeSlider->value());
        }
    } else if (watched == d->locationEdit && event->type() == QEvent::KeyPress) {
        if (keyEvent->modifiers() & Qt::AltModifier) {
            switch (keyEvent->key()) {
                case Qt::Key_Up:
                    d->ops->actionCollection()->action("up")->trigger();
                    break;
                case Qt::Key_Left:
                    d->ops->actionCollection()->action("back")->trigger();
                    break;
                case Qt::Key_Right:
                    d->ops->actionCollection()->action("forward")->trigger();
                    break;
                default:
                    break;
            }
        }
    }

    return res;
}

void KFileWidget::setMode( KFile::Modes m )
{
//     kDebug(kfile_area);

    d->ops->setMode(m);
    if ( d->ops->dirOnlyMode() ) {
        d->filterWidget->setDefaultFilter( i18n("*|All Folders") );
    }
    else {
        d->filterWidget->setDefaultFilter( i18n("*|All Files") );
    }

    d->updateAutoSelectExtension();
}

KFile::Modes KFileWidget::mode() const
{
    return d->ops->mode();
}


void KFileWidgetPrivate::readConfig(KConfigGroup &configGroup)
{
//     kDebug(kfile_area);

    readRecentFiles(configGroup);

    ops->setViewConfig(configGroup);
    ops->readConfig(configGroup);

    KUrlComboBox *combo = urlNavigator->editor();
    combo->setUrls( configGroup.readPathEntry( RecentURLs, QStringList() ), KUrlComboBox::RemoveTop );
    combo->setMaxItems( configGroup.readEntry( RecentURLsNumber,
                                       DefaultRecentURLsNumber ) );
    combo->setUrl( ops->url() );
    autoDirectoryFollowing = configGroup.readEntry(AutoDirectoryFollowing,
                                                   DefaultDirectoryFollowing);

    KGlobalSettings::Completion cm = (KGlobalSettings::Completion)
                                      configGroup.readEntry( PathComboCompletionMode,
                                      static_cast<int>( KGlobalSettings::completionMode() ) );
    if ( cm != KGlobalSettings::completionMode() )
        combo->setCompletionMode( cm );

    cm = (KGlobalSettings::Completion)
         configGroup.readEntry( LocationComboCompletionMode,
                        static_cast<int>( KGlobalSettings::completionMode() ) );
    if ( cm != KGlobalSettings::completionMode() )
        locationEdit->setCompletionMode( cm );

    // since we delayed this moment, initialize the directory of the completion object to
    // our current directory (that was very probably set on the constructor)
    KUrlCompletion *completion = dynamic_cast<KUrlCompletion*>(locationEdit->completionObject());
    if (completion) {
        completion->setDir(ops->url().url());
    }

    // show or don't show the speedbar
    _k_toggleSpeedbar( configGroup.readEntry( ShowSpeedbar, true ) );

    // show or don't show the bookmarks
    _k_toggleBookmarks( configGroup.readEntry(ShowBookmarks, false) );

    // does the user want Automatically Select Extension?
    autoSelectExtChecked = configGroup.readEntry (AutoSelectExtChecked, DefaultAutoSelectExtChecked);
    updateAutoSelectExtension();

    // should the URL navigator use the breadcrumb navigation?
    urlNavigator->setUrlEditable( !configGroup.readEntry(BreadcrumbNavigation, true) );

    // should the URL navigator show the full path?
    urlNavigator->setShowFullPath( configGroup.readEntry(ShowFullPath, false) );

    int w1 = q->minimumSize().width();
    int w2 = toolbar->sizeHint().width();
    if (w1 < w2)
        q->setMinimumWidth(w2);
}

void KFileWidgetPrivate::writeConfig(KConfigGroup &configGroup)
{
//     kDebug(kfile_area);

    // these settings are global settings; ALL instances of the file dialog
    // should reflect them
    configGroup.config()->setForceGlobal(true);

    KUrlComboBox *pathCombo = urlNavigator->editor();
    configGroup.writePathEntry( RecentURLs, pathCombo->urls() );
    //saveDialogSize( configGroup, KConfigGroup::Persistent | KConfigGroup::Global );
    configGroup.writeEntry( PathComboCompletionMode, static_cast<int>(pathCombo->completionMode()) );
    configGroup.writeEntry( LocationComboCompletionMode, static_cast<int>(locationEdit->completionMode()) );

    const bool showSpeedbar = placesDock && !placesDock->isHidden();
    configGroup.writeEntry( ShowSpeedbar, showSpeedbar );
    if (showSpeedbar) {
        const QList<int> sizes = placesViewSplitter->sizes();
        Q_ASSERT( sizes.count() > 0 );
        configGroup.writeEntry( SpeedbarWidth, sizes[0] );
    }

    configGroup.writeEntry( ShowBookmarks, bookmarkHandler != 0 );
    configGroup.writeEntry( AutoSelectExtChecked, autoSelectExtChecked );
    configGroup.writeEntry( BreadcrumbNavigation, !urlNavigator->isUrlEditable() );
    configGroup.writeEntry( ShowFullPath, urlNavigator->showFullPath() );

    ops->writeConfig(configGroup);
    configGroup.config()->setForceGlobal(false);
}


void KFileWidgetPrivate::readRecentFiles(KConfigGroup &cg)
{
//     kDebug(kfile_area);

    QObject::disconnect(locationEdit, SIGNAL(editTextChanged(QString)),
                        q, SLOT(_k_slotLocationChanged(QString)));

    locationEdit->setMaxItems(cg.readEntry(RecentFilesNumber, DefaultRecentURLsNumber));
    locationEdit->setUrls(cg.readPathEntry(RecentFiles, QStringList()),
                          KUrlComboBox::RemoveBottom);
    locationEdit->setCurrentIndex(-1);

    QObject::connect(locationEdit, SIGNAL(editTextChanged(QString)),
                     q, SLOT(_k_slotLocationChanged(QString)));
}

void KFileWidgetPrivate::saveRecentFiles(KConfigGroup &cg)
{
//     kDebug(kfile_area);
    cg.writePathEntry(RecentFiles, locationEdit->urls());
}

KPushButton * KFileWidget::okButton() const
{
    return d->okButton;
}

KPushButton * KFileWidget::cancelButton() const
{
    return d->cancelButton;
}

// Called by KFileDialog
void KFileWidget::slotCancel()
{
//     kDebug(kfile_area);

    d->ops->close();

    KConfigGroup grp(KGlobal::config(), ConfigGroup);
    d->writeConfig(grp);
}

void KFileWidget::setKeepLocation( bool keep )
{
    d->keepLocation = keep;
}

bool KFileWidget::keepsLocation() const
{
    return d->keepLocation;
}

void KFileWidget::setOperationMode( OperationMode mode )
{
//     kDebug(kfile_area);

    d->operationMode = mode;
    d->keepLocation = (mode == Saving);
    d->filterWidget->setEditable( !d->hasDefaultFilter || mode != Saving );
    if ( mode == Opening )
       // don't use KStandardGuiItem::open() here which has trailing ellipsis!
       d->okButton->setGuiItem( KGuiItem( i18n( "&Open" ), "document-open") );
    else if ( mode == Saving ) {
       d->okButton->setGuiItem( KStandardGuiItem::save() );
       d->setNonExtSelection();
    }
    else
       d->okButton->setGuiItem( KStandardGuiItem::ok() );
    d->updateLocationWhatsThis();
    d->updateAutoSelectExtension();

    if (d->ops) {
        d->ops->setIsSaving(mode == Saving);
    }
}

KFileWidget::OperationMode KFileWidget::operationMode() const
{
    return d->operationMode;
}

void KFileWidgetPrivate::_k_slotAutoSelectExtClicked()
{
//     kDebug (kfile_area) << "slotAutoSelectExtClicked(): "
//                          << autoSelectExtCheckBox->isChecked() << endl;

    // whether the _user_ wants it on/off
    autoSelectExtChecked = autoSelectExtCheckBox->isChecked();

    // update the current filename's extension
    updateLocationEditExtension (extension /* extension hasn't changed */);
}

void KFileWidgetPrivate::_k_placesViewSplitterMoved(int pos, int index)
{
//     kDebug(kfile_area);

    // we need to record the size of the splitter when the splitter changes size
    // so we can keep the places box the right size!
    if (placesDock && index == 1) {
        placesViewWidth = pos;
//         kDebug() << "setting lafBox minwidth to" << placesViewWidth;
        lafBox->setColumnMinimumWidth(0, placesViewWidth);
    }
}

void KFileWidgetPrivate::_k_activateUrlNavigator()
{
//     kDebug(kfile_area);

    urlNavigator->setUrlEditable(true);
    urlNavigator->setFocus();
    urlNavigator->editor()->lineEdit()->selectAll();
}

void KFileWidgetPrivate::_k_zoomOutIconsSize()
{
    const int currValue = ops->iconsZoom();
    const int futValue = qMax(0, currValue - 10);
    iconSizeSlider->setValue(futValue);
    _k_slotIconSizeSliderMoved(futValue);
}

void KFileWidgetPrivate::_k_zoomInIconsSize()
{
    const int currValue = ops->iconsZoom();
    const int futValue = qMin(100, currValue + 10);
    iconSizeSlider->setValue(futValue);
    _k_slotIconSizeSliderMoved(futValue);
}

void KFileWidgetPrivate::_k_slotIconSizeChanged(int _value)
{
    int maxSize = KIconLoader::SizeEnormous - KIconLoader::SizeSmall;
    int value = (maxSize * _value / 100) + KIconLoader::SizeSmall;
    switch (value) {
        case KIconLoader::SizeSmall:
        case KIconLoader::SizeSmallMedium:
        case KIconLoader::SizeMedium:
        case KIconLoader::SizeLarge:
        case KIconLoader::SizeHuge:
        case KIconLoader::SizeEnormous:
            iconSizeSlider->setToolTip(i18n("Icon size: %1 pixels (standard size)", value));
            break;
        default:
            iconSizeSlider->setToolTip(i18n("Icon size: %1 pixels", value));
            break;
    }
}

void KFileWidgetPrivate::_k_slotIconSizeSliderMoved(int _value)
{
    // Force this to be called in case this slot is called first on the
    // slider move.
    _k_slotIconSizeChanged(_value);

    QPoint global(iconSizeSlider->rect().topLeft());
    global.ry() += iconSizeSlider->height() / 2;
    QHelpEvent toolTipEvent(QEvent::ToolTip, QPoint(0, 0), iconSizeSlider->mapToGlobal(global));
    QApplication::sendEvent(iconSizeSlider, &toolTipEvent);
}

void KFileWidgetPrivate::_k_slotViewDoubleClicked(const QModelIndex &index)
{
    if (!index.isValid()) {
        return;
    }
    q->slotOk();
}

static QString getExtensionFromPatternList(const QStringList &patternList)
{
//     kDebug(kfile_area);

    QString ret;
//     kDebug (kfile_area) << "\tgetExtension " << patternList;

    QStringList::ConstIterator patternListEnd = patternList.end();
    for (QStringList::ConstIterator it = patternList.begin();
         it != patternListEnd;
         ++it)
    {
//         kDebug (kfile_area) << "\t\ttry: \'" << (*it) << "\'";

        // is this pattern like "*.BMP" rather than useless things like:
        //
        // README
        // *.
        // *.*
        // *.JP*G
        // *.JP?
        if ((*it).startsWith ("*.") &&
            (*it).length() > 2 &&
            (*it).indexOf('*', 2) < 0 && (*it).indexOf ('?', 2) < 0)
        {
            ret = (*it).mid (1);
            break;
        }
    }

    return ret;
}

static QString stripUndisplayable (const QString &string)
{
    QString ret = string;

    ret.remove (':');
    ret = KGlobal::locale()->removeAcceleratorMarker (ret);

    return ret;
}


//QString KFileWidget::currentFilterExtension()
//{
//    return d->extension;
//}

void KFileWidgetPrivate::updateAutoSelectExtension()
{
    if (!autoSelectExtCheckBox) return;

    //
    // Figure out an extension for the Automatically Select Extension thing
    // (some Windows users apparently don't know what to do when confronted
    // with a text file called "COPYING" but do know what to do with
    // COPYING.txt ...)
    //

//     kDebug (kfile_area) << "Figure out an extension: ";
    QString lastExtension = extension;
    extension.clear();

    // Automatically Select Extension is only valid if the user is _saving_ a _file_
    if ((operationMode == KFileWidget::Saving) && (ops->mode() & KFile::File))
    {
        //
        // Get an extension from the filter
        //

        QString filter = filterWidget->currentFilter();
        if (!filter.isEmpty())
        {
            // e.g. "*.cpp"
            if (filter.indexOf ('/') < 0)
            {
                extension = getExtensionFromPatternList (filter.split(' ', QString::SkipEmptyParts)/*QStringList::split (" ", filter)*/).toLower();
//                 kDebug (kfile_area) << "\tsetFilter-style: pattern ext=\'"
//                                     << extension << "\'" << endl;
            }
            // e.g. "text/html"
            else
            {
                KMimeType::Ptr mime = KMimeType::mimeType (filter);

                if (mime)
                {
                    // first try X-KDE-NativeExtension
                    QString nativeExtension = mime->property ("X-KDE-NativeExtension").toString();
                    if (!nativeExtension.isEmpty() && nativeExtension.at (0) == '.')
                    {
                        extension = nativeExtension.toLower();
//                         kDebug (kfile_area) << "\tsetMimeFilter-style: native ext=\'"
//                                             << extension << "\'" << endl;
                    }

                    // no X-KDE-NativeExtension
                    if (extension.isEmpty())
                    {
                        extension = getExtensionFromPatternList (mime->patterns()).toLower();
//                         kDebug (kfile_area) << "\tsetMimeFilter-style: pattern ext=\'"
//                                             << extension << "\'" << endl;
                    }
                }
            }
        }


        //
        // GUI: checkbox
        //

        QString whatsThisExtension;
        if (!extension.isEmpty())
        {
            // remember: sync any changes to the string with below
            autoSelectExtCheckBox->setText (i18n ("Automatically select filename e&xtension (%1)",  extension));
            whatsThisExtension = i18n ("the extension <b>%1</b>",  extension);

            autoSelectExtCheckBox->setEnabled (true);
            autoSelectExtCheckBox->setChecked (autoSelectExtChecked);
        }
        else
        {
            // remember: sync any changes to the string with above
            autoSelectExtCheckBox->setText (i18n ("Automatically select filename e&xtension"));
            whatsThisExtension = i18n ("a suitable extension");

            autoSelectExtCheckBox->setChecked (false);
            autoSelectExtCheckBox->setEnabled (false);
        }

        const QString locationLabelText = stripUndisplayable (locationLabel->text());
        const QString filterLabelText = stripUndisplayable (filterLabel->text());
        autoSelectExtCheckBox->setWhatsThis(            "<qt>" +
                i18n (
                  "This option enables some convenient features for "
                  "saving files with extensions:<br />"
                  "<ol>"
                    "<li>Any extension specified in the <b>%1</b> text "
                    "area will be updated if you change the file type "
                    "to save in.<br />"
                    "<br /></li>"
                    "<li>If no extension is specified in the <b>%2</b> "
                    "text area when you click "
                    "<b>Save</b>, %3 will be added to the end of the "
                    "filename (if the filename does not already exist). "
                    "This extension is based on the file type that you "
                    "have chosen to save in.<br />"
                    "<br />"
                    "If you do not want KDE to supply an extension for the "
                    "filename, you can either turn this option off or you "
                    "can suppress it by adding a period (.) to the end of "
                    "the filename (the period will be automatically "
                    "removed)."
                    "</li>"
                  "</ol>"
                  "If unsure, keep this option enabled as it makes your "
                  "files more manageable."
                    ,
                  locationLabelText,
                  locationLabelText,
                  whatsThisExtension)
            + "</qt>"
            );

        autoSelectExtCheckBox->show();


        // update the current filename's extension
        updateLocationEditExtension (lastExtension);
    }
    // Automatically Select Extension not valid
    else
    {
        autoSelectExtCheckBox->setChecked (false);
        autoSelectExtCheckBox->hide();
    }
}

// Updates the extension of the filename specified in d->locationEdit if the
// Automatically Select Extension feature is enabled.
// (this prevents you from accidently saving "file.kwd" as RTF, for example)
void KFileWidgetPrivate::updateLocationEditExtension (const QString &lastExtension)
{
    if (!autoSelectExtCheckBox->isChecked() || extension.isEmpty())
        return;

    QString urlStr = locationEditCurrentText();
    if (urlStr.isEmpty())
        return;

    KUrl url = getCompleteUrl(urlStr);
//     kDebug (kfile_area) << "updateLocationEditExtension (" << url << ")";

    const int fileNameOffset = urlStr.lastIndexOf ('/') + 1;
    QString fileName = urlStr.mid (fileNameOffset);

    const int dot = fileName.lastIndexOf ('.');
    const int len = fileName.length();
    if (dot > 0 && // has an extension already and it's not a hidden file
                   // like ".hidden" (but we do accept ".hidden.ext")
        dot != len - 1 // and not deliberately suppressing extension
        )
    {
        // exists?
        KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
        bool result = KIO::NetAccess::synchronousRun(statJob, 0);
        if (result)
        {
//             kDebug (kfile_area) << "\tfile exists";

            if (statJob->statResult().isDir())
            {
//                 kDebug (kfile_area) << "\tisDir - won't alter extension";
                return;
            }

            // --- fall through ---
        }


        //
        // try to get rid of the current extension
        //

        // catch "double extensions" like ".tar.gz"
        if (lastExtension.length() && fileName.endsWith (lastExtension))
            fileName.truncate (len - lastExtension.length());
        else if (extension.length() && fileName.endsWith (extension))
            fileName.truncate (len - extension.length());
        // can only handle "single extensions"
        else
            fileName.truncate (dot);

        // add extension
        const QString newText = urlStr.left (fileNameOffset) + fileName + extension;
        if ( newText != locationEditCurrentText() )
        {
            locationEdit->setItemText(locationEdit->currentIndex(),urlStr.left (fileNameOffset) + fileName + extension);
            locationEdit->lineEdit()->setModified (true);
        }
    }
}

// Updates the filter if the extension of the filename specified in d->locationEdit is changed
// (this prevents you from accidently saving "file.kwd" as RTF, for example)
void KFileWidgetPrivate::updateFilter()
{
//     kDebug(kfile_area);

    if ((operationMode == KFileWidget::Saving) && (ops->mode() & KFile::File) ) {
        const QString urlStr = locationEditCurrentText();
        if (urlStr.isEmpty())
            return;

        KMimeType::Ptr mime = KMimeType::findByPath(urlStr, 0, true);
        if (mime && mime->name() != KMimeType::defaultMimeType()) {
            if (filterWidget->currentFilter() != mime->name() &&
                filterWidget->filters().indexOf(mime->name()) != -1)
                filterWidget->setCurrentFilter(mime->name());
        }
    }
}

// applies only to a file that doesn't already exist
void KFileWidgetPrivate::appendExtension (KUrl &url)
{
//     kDebug(kfile_area);

    if (!autoSelectExtCheckBox->isChecked() || extension.isEmpty())
        return;

    QString fileName = url.fileName();
    if (fileName.isEmpty())
        return;

//     kDebug (kfile_area) << "appendExtension(" << url << ")";

    const int len = fileName.length();
    const int dot = fileName.lastIndexOf ('.');

    const bool suppressExtension = (dot == len - 1);
    const bool unspecifiedExtension = (dot <= 0);

    // don't KIO::Stat if unnecessary
    if (!(suppressExtension || unspecifiedExtension))
        return;

    // exists?
    KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
    bool res = KIO::NetAccess::synchronousRun(statJob, 0);
    if (res)
    {
//         kDebug (kfile_area) << "\tfile exists - won't append extension";
        return;
    }

    // suppress automatically append extension?
    if (suppressExtension)
    {
        //
        // Strip trailing dot
        // This allows lazy people to have autoSelectExtCheckBox->isChecked
        // but don't want a file extension to be appended
        // e.g. "README." will make a file called "README"
        //
        // If you really want a name like "README.", then type "README.."
        // and the trailing dot will be removed (or just stop being lazy and
        // turn off this feature so that you can type "README.")
        //
//         kDebug (kfile_area) << "\tstrip trailing dot";
        url.setFileName (fileName.left (len - 1));
    }
    // evilmatically append extension :) if the user hasn't specified one
    else if (unspecifiedExtension)
    {
//         kDebug (kfile_area) << "\tappending extension \'" << extension << "\'...";
        url.setFileName (fileName + extension);
//         kDebug (kfile_area) << "\tsaving as \'" << url << "\'";
    }
}


// adds the selected files/urls to 'recent documents'
void KFileWidgetPrivate::addToRecentDocuments()
{
    int m = ops->mode();
    int atmost = KRecentDocument::maximumItems();
    //don't add more than we need. KRecentDocument::add() is pretty slow

    if (m & KFile::LocalOnly) {
        const QStringList files = q->selectedFiles();
        QStringList::ConstIterator it = files.begin();
        for ( ; it != files.end() && atmost > 0; ++it ) {
            KRecentDocument::add( *it );
            atmost--;
        }
    }

    else { // urls
        const KUrl::List urls = q->selectedUrls();
        KUrl::List::ConstIterator it = urls.begin();
        for ( ; it != urls.end() && atmost > 0; ++it ) {
            if ( (*it).isValid() ) {
                KRecentDocument::add( *it );
                atmost--;
            }
        }
    }
}

KUrlComboBox* KFileWidget::locationEdit() const
{
    return d->locationEdit;
}

KFileFilterCombo* KFileWidget::filterWidget() const
{
    return d->filterWidget;
}

KActionCollection * KFileWidget::actionCollection() const
{
    return d->ops->actionCollection();
}

void KFileWidgetPrivate::_k_toggleSpeedbar(bool show)
{
    if (show) {
        initSpeedbar();
        placesDock->show();
        lafBox->setColumnMinimumWidth(0, placesViewWidth);

        // check to see if they have a home item defined, if not show the home button
        KUrl homeURL;
        homeURL.setPath( QDir::homePath() );
        KFilePlacesModel *model = static_cast<KFilePlacesModel*>(placesView->model());
        for (int rowIndex = 0 ; rowIndex < model->rowCount() ; rowIndex++) {
            QModelIndex index = model->index(rowIndex, 0);
            KUrl url = model->url(index);

            if ( homeURL.equals( url, KUrl::CompareWithoutTrailingSlash ) ) {
                toolbar->removeAction( ops->actionCollection()->action( "home" ) );
                break;
            }
        }
    } else {
        if (q->sender() == placesDock && placesDock && placesDock->isVisibleTo(q)) {
            // we didn't *really* go away! the dialog was simply hidden or
            // we changed virtual desktops or ...
            return;
        }

        if (placesDock) {
            placesDock->hide();
        }

        QAction* homeAction = ops->actionCollection()->action("home");
        QAction* reloadAction = ops->actionCollection()->action("reload");
        if (!toolbar->actions().contains(homeAction)) {
            toolbar->insertAction(reloadAction, homeAction);
        }

        // reset the lafbox to not follow the width of the splitter
        lafBox->setColumnMinimumWidth(0, 0);
    }

    static_cast<KToggleAction *>(q->actionCollection()->action("toggleSpeedbar"))->setChecked(show);
}

void KFileWidgetPrivate::_k_toggleBookmarks(bool show)
{
    if (show)
    {
        if (bookmarkHandler)
        {
            return;
        }

        bookmarkHandler = new KFileBookmarkHandler( q );
        q->connect( bookmarkHandler, SIGNAL( openUrl( const QString& )),
                    SLOT( _k_enterUrl( const QString& )));

        bookmarkButton = new KActionMenu(KIcon("bookmarks"),i18n("Bookmarks"), q);
        bookmarkButton->setDelayed(false);
        q->actionCollection()->addAction("bookmark", bookmarkButton);
        bookmarkButton->setMenu(bookmarkHandler->menu());
        bookmarkButton->setWhatsThis(i18n("<qt>This button allows you to bookmark specific locations. "
                                "Click on this button to open the bookmark menu where you may add, "
                                "edit or select a bookmark.<br /><br />"
                                "These bookmarks are specific to the file dialog, but otherwise operate "
                                "like bookmarks elsewhere in KDE.</qt>"));
        toolbar->addAction(bookmarkButton);
    }
    else if (bookmarkHandler)
    {
        delete bookmarkHandler;
        bookmarkHandler = 0;
        delete bookmarkButton;
        bookmarkButton = 0;
    }

    static_cast<KToggleAction *>(q->actionCollection()->action("toggleBookmarks"))->setChecked( show );
}

// static
KUrl KFileWidget::getStartUrl( const KUrl& startDir,
                               QString& recentDirClass )
{
//     kDebug(kfile_area);

    recentDirClass.clear();
    KUrl ret;

    bool useDefaultStartDir = startDir.isEmpty();
    if ( !useDefaultStartDir )
    {
        if (startDir.protocol() == "kfiledialog")
        {
            if ( startDir.query() == "?global" )
              recentDirClass = QString( "::%1" ).arg( startDir.path().mid( 1 ) );
            else
              recentDirClass = QString( ":%1" ).arg( startDir.path().mid( 1 ) );

            ret = KUrl( KRecentDirs::dir(recentDirClass) );
        }
        else
        {
            ret = startDir;
            // If we won't be able to list it (e.g. http), then use default
            if ( !KProtocolManager::supportsListing( ret ) )
                useDefaultStartDir = true;
        }
    }

    if ( useDefaultStartDir )
    {
        if (lastDirectory->isEmpty()) {
            lastDirectory->setPath(KGlobalSettings::documentPath());
            KUrl home;
            home.setPath( QDir::homePath() );
            // if there is no docpath set (== home dir), we prefer the current
            // directory over it. We also prefer the homedir when our CWD is
            // different from our homedirectory or when the document dir
            // does not exist
            if ( lastDirectory->path(KUrl::AddTrailingSlash) == home.path(KUrl::AddTrailingSlash) ||
                 QDir::currentPath() != QDir::homePath() ||
                 !QDir(lastDirectory->path(KUrl::AddTrailingSlash)).exists() )
                lastDirectory->setPath(QDir::currentPath());
        }
        ret = *lastDirectory;
    }

    return ret;
}

void KFileWidget::setStartDir( const KUrl& directory )
{
    if ( directory.isValid() )
        *lastDirectory = directory;
}

void KFileWidgetPrivate::setNonExtSelection()
{
    // Enhanced rename: Don't highlight the file extension.
    QString filename = locationEditCurrentText();
    QString extension = KMimeType::extractKnownExtension( filename );

    if ( !extension.isEmpty() )
       locationEdit->lineEdit()->setSelection( 0, filename.length() - extension.length() - 1 );
    else
    {
       int lastDot = filename.lastIndexOf( '.' );
       if ( lastDot > 0 )
          locationEdit->lineEdit()->setSelection( 0, lastDot );
    }
}

KToolBar * KFileWidget::toolBar() const
{
    return d->toolbar;
}

void KFileWidget::setCustomWidget(QWidget* widget)
{
    delete d->bottomCustomWidget;
    d->bottomCustomWidget = widget;

    // add it to the dialog, below the filter list box.

    // Change the parent so that this widget is a child of the main widget
    d->bottomCustomWidget->setParent( this );

    d->vbox->addWidget( d->bottomCustomWidget );
    //d->vbox->addSpacing(3); // can't do this every time...

    // FIXME: This should adjust the tab orders so that the custom widget
    // comes after the Cancel button. The code appears to do this, but the result
    // somehow screws up the tab order of the file path combo box. Not a major
    // problem, but ideally the tab order with a custom widget should be
    // the same as the order without one.
    setTabOrder(d->cancelButton, d->bottomCustomWidget);
    setTabOrder(d->bottomCustomWidget, d->urlNavigator);
}

void KFileWidget::setCustomWidget(const QString& text, QWidget* widget)
{
    delete d->labeledCustomWidget;
    d->labeledCustomWidget = widget;

    QLabel* label = new QLabel(text, this);
    label->setAlignment(Qt::AlignRight);
    d->lafBox->addWidget(label, 2, 0, Qt::AlignVCenter);
    d->lafBox->addWidget(widget, 2, 1, Qt::AlignVCenter);
}

void KFileWidget::virtual_hook( int id, void* data )
{
    // this is a workaround to avoid binary compatibility breakage
    // since setConfirmOverwrite in kabstractfilewidget.h is a new function
    // introduced for 4.2. As stated in kabstractfilewidget.h this workaround
    // is going to become a virtual function for KDE5

    switch (id) {
        case 0: { // setConfirmOverwrite(bool)
                bool *enable = static_cast<bool*>(data);
                d->confirmOverwrite = *enable;
            }
            break;
        case 1: { // setInlinePreviewShown(bool)
                bool *show = static_cast<bool*>(data);
                d->setInlinePreviewShown(*show);
            }
            break;
        default:
            break;
    }
}

QString KFileWidgetPrivate::locationEditCurrentText() const
{
    return QDir::fromNativeSeparators(locationEdit->currentText().trimmed());
}

KUrl KFileWidgetPrivate::mostLocalUrl(const KUrl &url)
{
    if (url.isLocalFile()) {
        return url;
    }

    KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
    bool res = KIO::NetAccess::synchronousRun(statJob, 0);

    if (!res) {
        return url;
    }

    const QString path = statJob->statResult().stringValue(KIO::UDSEntry::UDS_LOCAL_PATH);
    if (!path.isEmpty()) {
        KUrl newUrl;
        newUrl.setPath(path);
        return newUrl;
    }

    return url;
}

void KFileWidgetPrivate::setInlinePreviewShown(bool show)
{
    ops->setInlinePreviewShown(show);
}

#include "kfilewidget.moc"
