]> cloud.milkyroute.net Git - dolphin.git/blobdiff - src/urlnavigator.cpp
Make use of KFilePlaces instead of the bookmark system in the URL
[dolphin.git] / src / urlnavigator.cpp
index ae2e06cbd73ba4abab43e054ee7173b6ef1e5f67..1e8f06b6e3acc7665a93febad0c3e53f2dc58cc0 100644 (file)
@@ -1,5 +1,5 @@
 /***************************************************************************
- *   Copyright (C) 2006 by Peter Penz (peter.penz@gmx.at)                  *
+ *   Copyright (C) 2006 by Peter Penz (<peter.penz@gmx.at>)                *
  *   Copyright (C) 2006 by Aaron J. Seigo (<aseigo@kde.org>)               *
  *   Copyright (C) 2006 by Patrice Tremblay                                *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  ***************************************************************************/
 
 #include "urlnavigator.h"
 
+#include "bookmarkselector.h"
+#include "protocolcombo.h"
+#include "urlnavigatorbutton.h"
+
 #include <assert.h>
 
-#include <qcombobox.h>
-#include <qfont.h>
-#include <qlabel.h>
-#include <q3listbox.h>
-#include <qlineedit.h>
-#include <qobject.h>
-#include <q3popupmenu.h>
-#include <qpushbutton.h>
-#include <qsizepolicy.h>
-#include <qtooltip.h>
-//Added by qt3to4:
-#include <Q3ValueList>
-#include <QKeyEvent>
-#include <QCheckBox>
-
-#include <kaction.h>
-#include <kactioncollection.h>
-#include <kiconloader.h>
-#include <kio/job.h>
+#include <kfileitem.h>
+#include <kicon.h>
 #include <klocale.h>
 #include <kprotocolinfo.h>
-#include <kurl.h>
 #include <kurlcombobox.h>
 #include <kurlcompletion.h>
-#include <kbookmarkmanager.h>
-#include <kvbox.h>
 
-#include "bookmarkselector.h"
-#include "dolphin.h"
-#include "dolphinsettings.h"
-#include "dolphinstatusbar.h"
-#include "dolphinview.h"
-#include "generalsettings.h"
-#include "protocolcombo.h"
-#include "urlnavigatorbutton.h"
-
-UrlNavigator::HistoryElem::HistoryElem()
- :  m_url(),
+#include <QApplication>
+#include <QClipboard>
+#include <QDir>
+#include <QHBoxLayout>
+#include <QLabel>
+#include <QLineEdit>
+#include <QLinkedList>
+#include <QMouseEvent>
+#include <QToolButton>
+
+/**
+ * @brief Represents the history element of an URL.
+ *
+ * A history element contains the URL, the name of the current file
+ * (the 'current file' is the file where the cursor is located) and
+ * the x- and y-position of the content.
+ */
+class HistoryElem {
+public:
+    HistoryElem();
+    HistoryElem(const KUrl& url);
+    ~HistoryElem(); // non virtual
+
+    const KUrl& url() const { return m_url; }
+
+    void setCurrentFileName(const QString& name) { m_currentFileName = name; }
+    const QString& currentFileName() const { return m_currentFileName; }
+
+    void setContentsX(int x) { m_contentsX = x; }
+    int contentsX() const { return m_contentsX; }
+
+    void setContentsY(int y) { m_contentsY = y; }
+    int contentsY() const { return m_contentsY; }
+
+private:
+    KUrl m_url;
+    QString m_currentFileName;
+    int m_contentsX;
+    int m_contentsY;
+};
+
+HistoryElem::HistoryElem() :
+    m_url(),
     m_currentFileName(),
     m_contentsX(0),
     m_contentsY(0)
 {
 }
 
-UrlNavigator::HistoryElem::HistoryElem(const KUrl& url)
:  m_url(url),
+HistoryElem::HistoryElem(const KUrl& url) :
   m_url(url),
     m_currentFileName(),
     m_contentsX(0),
     m_contentsY(0)
 {
 }
 
-UrlNavigator::HistoryElem::~HistoryElem()
+HistoryElem::~HistoryElem()
 {
 }
 
-UrlNavigator::UrlNavigator(const KUrl& url,
-                           DolphinView* dolphinView) :
-    KHBox(dolphinView),
+class UrlNavigator::Private
+{
+public:
+    Private(UrlNavigator* q, KFilePlacesModel* placesModel);
+
+    void slotReturnPressed(const QString&);
+    void slotRemoteHostActivated();
+    void slotProtocolChanged(const QString&);
+
+    /**
+     * Appends the widget at the end of the URL navigator. It is assured
+     * that the filler widget remains as last widget to fill the remaining
+     * width.
+     */
+    void appendWidget(QWidget* widget);
+
+    /**
+     * Switches the navigation bar between the breadcrumb view and the
+     * traditional view (see setUrlEditable()) and is connected to the clicked signal
+     * of the navigation bar button.
+     */
+    void switchView();
+
+    /**
+     * Updates the history element with the current file item
+     * and the contents position.
+     */
+    void updateHistoryElem();
+    void updateContent();
+
+    /**
+     * Updates all buttons to have one button for each part of the
+     * path \a path. Existing buttons, which are available by m_navButtons,
+     * are reused if possible. If the path is longer, new buttons will be
+     * created, if the path is shorter, the remaining buttons will be deleted.
+     * @param startIndex    Start index of path part (/), where the buttons
+     *                      should be created for each following part.
+     */
+    void updateButtons(const QString& path, int startIndex);
+
+    /**
+     * Deletes all URL navigator buttons. m_navButtons is
+     * empty after this operation.
+     */
+    void deleteButtons();
+
+
+    bool m_active;
+    bool m_showHiddenFiles;
+    int m_historyIndex;
+
+    QHBoxLayout* m_layout;
+
+    QList<HistoryElem> m_history;
+    QToolButton* m_toggleButton;
+    BookmarkSelector* m_bookmarkSelector;
+    KUrlComboBox* m_pathBox;
+    ProtocolCombo* m_protocols;
+    QLabel* m_protocolSeparator;
+    QLineEdit* m_host;
+    QLinkedList<UrlNavigatorButton*> m_navButtons;
+    QWidget* m_filler;
+    QString m_homeUrl;
+    UrlNavigator* q;
+};
+
+
+UrlNavigator::Private::Private(UrlNavigator* q, KFilePlacesModel* placesModel)
+    :
+    m_active(true),
+    m_showHiddenFiles(false),
     m_historyIndex(0),
-    m_dolphinView(dolphinView),
+    m_layout(new QHBoxLayout),
     m_protocols(0),
     m_protocolSeparator(0),
-    m_host(0)
+    m_host(0),
+    m_filler(0),
+    q(q)
 {
-    m_history.prepend(HistoryElem(url));
-
-    QFontMetrics fontMetrics(font());
-    setMinimumHeight(fontMetrics.height() + 8);
-
-    m_toggleButton = new QCheckBox(this);
-    //m_toggleButton->setFlat(true);
-    //m_toggleButton->setToggleButton(true);
+    m_layout->setSpacing(0);
+    m_layout->setMargin(0);
+
+    // initialize toggle button which switches between the breadcrumb view
+    // and the traditional view
+    m_toggleButton = new QToolButton();
+    m_toggleButton->setCheckable(true);
+    m_toggleButton->setAutoRaise(true);
+    m_toggleButton->setIcon(KIcon("editinput")); // TODO: is just a placeholder icon (?)
     m_toggleButton->setFocusPolicy(Qt::NoFocus);
-    m_toggleButton->setMinimumHeight(minimumHeight());
+    m_toggleButton->setMinimumHeight(q->minimumHeight());
     connect(m_toggleButton, SIGNAL(clicked()),
-            this, SLOT(slotClicked()));
-    if (DolphinSettings::instance().generalSettings()->editableUrl()) {
-        m_toggleButton->toggle();
-    }
+            q, SLOT(switchView()));
 
-    m_bookmarkSelector = new BookmarkSelector(this);
-    connect(m_bookmarkSelector, SIGNAL(bookmarkActivated(int)),
-            this, SLOT(slotBookmarkActivated(int)));
+    // initialize the bookmark selector
+    m_bookmarkSelector = new BookmarkSelector(q, placesModel);
+    connect(m_bookmarkSelector, SIGNAL(placeActivated(const KUrl&)),
+            q, SLOT(setUrl(const KUrl&)));
 
-    m_pathBox = new KUrlComboBox(KUrlComboBox::Directories, true, this);
+    // initialize the path box of the traditional view
+    m_pathBox = new KUrlComboBox(KUrlComboBox::Directories, true, q);
 
     KUrlCompletion* kurlCompletion = new KUrlCompletion(KUrlCompletion::DirCompletion);
     m_pathBox->setCompletionObject(kurlCompletion);
     m_pathBox->setAutoDeleteCompletionObject(true);
 
-    connect(m_pathBox, SIGNAL(returnPressed(const QString&)),
-            this, SLOT(slotReturnPressed(const QString&)));
-    connect(m_pathBox, SIGNAL(urlActivated(const KUrl&)),
-            this, SLOT(slotUrlActivated(const KUrl&)));
-
-    connect(dolphinView, SIGNAL(contentsMoved(int, int)),
-            this, SLOT(slotContentsMoved(int, int)));
-    connect(dolphinView, SIGNAL(redirection(const KUrl&, const KUrl&)),
-            this, SLOT(slotRedirection(const KUrl&, const KUrl&)));
-/*    connect(dolphinView, SIGNAL(redirection(const KUrl&)),
-            this, SLOT(slotRedirection(const KUrl&)));*/
-    updateContent();
+    connect(m_pathBox, SIGNAL(returnPressed(QString)),
+            q, SLOT(slotReturnPressed(QString)));
+    connect(m_pathBox, SIGNAL(urlActivated(KUrl)),
+            q, SLOT(setUrl(KUrl)));
+
+    // Append a filler widget at the end, which automatically resizes to the
+    // maximum available width. This assures that the URL navigator uses the
+    // whole width, so that the clipboard content can be dropped.
+    m_filler = new QWidget();
+    m_filler->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
+
+    m_layout->addWidget(m_toggleButton);
+    m_layout->addWidget(m_bookmarkSelector);
+    m_layout->addWidget(m_pathBox);
+    m_layout->addWidget(m_filler);
 }
 
-UrlNavigator::~UrlNavigator()
+void UrlNavigator::Private::appendWidget(QWidget* widget)
 {
+    m_layout->insertWidget(m_layout->count() - 1, widget);
 }
 
-void UrlNavigator::setUrl(const KUrl& url)
-{
-    QString urlStr(url.pathOrUrl());
-    //kDebug() << "setUrl(" << url << ")" << endl;
-    if (urlStr.at(0) == '~') {
-        // replace '~' by the home directory
-        urlStr.remove(0, 1);
-        urlStr.insert(0, QDir::home().path());
-    }
-
-    const KUrl transformedUrl(urlStr);
-
-    if (m_historyIndex > 0) {
-        // Check whether the previous element of the history has the same Url.
-        // If yes, just go forward instead of inserting a duplicate history
-        // element.
-        const KUrl& nextUrl = m_history[m_historyIndex - 1].url();
-        if (transformedUrl == nextUrl) {
-            goForward();
-//             kDebug() << "goin' forward in history" << endl;
-            return;
-        }
-    }
-
-    const KUrl& currUrl = m_history[m_historyIndex].url();
-    if (currUrl == transformedUrl) {
-        // don't insert duplicate history elements
-//         kDebug() << "currUrl == transformedUrl" << endl;
-        return;
-    }
-
-    updateHistoryElem();
-
-    const Q3ValueListIterator<UrlNavigator::HistoryElem> it = m_history.at(m_historyIndex);
-    m_history.insert(it, HistoryElem(transformedUrl));
-
-    updateContent();
-
-    emit urlChanged(transformedUrl);
-    emit historyChanged();
-
-    // Prevent an endless growing of the history: remembering
-    // the last 100 Urls should be enough...
-    if (m_historyIndex > 100) {
-        m_history.erase(m_history.begin());
-        --m_historyIndex;
-    }
-
-/*    kDebug() << "history starting ====================" << endl;
-    int i = 0;
-    for (QValueListIterator<UrlNavigator::HistoryElem> it = m_history.begin();
-         it != m_history.end();
-         ++it, ++i)
-    {
-        kDebug() << i << ": " << (*it).url() << endl;
-    }
-    kDebug() << "history done ========================" << endl;*/
-}
-
-const KUrl& UrlNavigator::url() const
-{
-    assert(!m_history.empty());
-    return m_history[m_historyIndex].url();
-}
-
-KUrl UrlNavigator::url(int index) const
-{
-    assert(index >= 0);
-    QString path(url().pathOrUrl());
-    path = path.section('/', 0, index);
-
-    if (path.at(path.length()-1) != '/')
-    {
-        path.append('/');
-    }
-
-    return path;
-}
-
-const Q3ValueList<UrlNavigator::HistoryElem>& UrlNavigator::history(int& index) const
-{
-    index = m_historyIndex;
-    return m_history;
-}
-
-void UrlNavigator::goBack()
-{
-    updateHistoryElem();
-
-    const int count = m_history.count();
-    if (m_historyIndex < count - 1) {
-        ++m_historyIndex;
-        updateContent();
-        emit urlChanged(url());
-        emit historyChanged();
-    }
-}
-
-void UrlNavigator::goForward()
-{
-    if (m_historyIndex > 0) {
-        --m_historyIndex;
-        updateContent();
-        emit urlChanged(url());
-        emit historyChanged();
-    }
-}
-
-void UrlNavigator::goUp()
-{
-    setUrl(url().upUrl());
-}
-
-void UrlNavigator::goHome()
-{
-    setUrl(DolphinSettings::instance().generalSettings()->homeUrl());
-}
-
-void UrlNavigator::setUrlEditable(bool editable)
-{
-    if (isUrlEditable() != editable) {
-        m_toggleButton->toggle();
-        slotClicked();
-    }
-}
-
-bool UrlNavigator::isUrlEditable() const
-{
-    return m_toggleButton->isChecked();
-}
-
-void UrlNavigator::editUrl(bool editOrBrowse)
-{
-    setUrlEditable(editOrBrowse);
-
-    if (editOrBrowse)
-    {
-        m_pathBox->setFocus();
-    }
-}
-
-DolphinView* UrlNavigator::dolphinView() const
-{
-    return m_dolphinView;
-}
-
-void UrlNavigator::keyReleaseEvent(QKeyEvent* event)
-{
-    KHBox::keyReleaseEvent(event);
-    if (isUrlEditable() && (event->key() == Qt::Key_Escape)) {
-        setUrlEditable(false);
-    }
-}
-
-void UrlNavigator::slotReturnPressed(const QString& text)
+void UrlNavigator::Private::slotReturnPressed(const QString& text)
 {
     // Parts of the following code have been taken
     // from the class KateFileSelector located in
@@ -297,33 +233,28 @@ void UrlNavigator::slotReturnPressed(const QString& text)
 
     KUrl typedUrl(text);
     if (typedUrl.hasPass()) {
-        typedUrl.setPass(QString::null);
+        typedUrl.setPass(QString());
     }
 
     QStringList urls = m_pathBox->urls();
-    urls.remove(typedUrl.url());
+    urls.removeAll(typedUrl.url());
     urls.prepend(typedUrl.url());
     m_pathBox->setUrls(urls, KUrlComboBox::RemoveBottom);
 
-    setUrl(typedUrl);
-    // The Url might have been adjusted by UrlNavigator::setUrl(), hence
+    q->setUrl(typedUrl);
+    // The URL might have been adjusted by UrlNavigator::setUrl(), hence
     // synchronize the result in the path box.
-    m_pathBox->setUrl(url());
-}
-
-void UrlNavigator::slotUrlActivated(const KUrl& url)
-{
-    setUrl(url);
+    m_pathBox->setUrl(q->url());
 }
 
-void UrlNavigator::slotRemoteHostActivated()
+void UrlNavigator::Private::slotRemoteHostActivated()
 {
-    KUrl u = url();
+    KUrl u = q->url();
 
     QString host = m_host->text();
     QString user;
 
-    int marker = host.find("@");
+    int marker = host.indexOf("@");
     if (marker != -1)
     {
         user = host.left(marker);
@@ -331,7 +262,7 @@ void UrlNavigator::slotRemoteHostActivated()
         host = host.right(host.length() - marker - 1);
     }
 
-    marker = host.find("/");
+    marker = host.indexOf("/");
     if (marker != -1)
     {
         u.setPath(host.right(host.length() - marker));
@@ -359,18 +290,19 @@ void UrlNavigator::slotRemoteHostActivated()
             }
         }
 
-        setUrl(u);
+        q->setUrl(u);
     }
 }
 
-void UrlNavigator::slotProtocolChanged(const QString& protocol)
+void UrlNavigator::Private::slotProtocolChanged(const QString& protocol)
 {
     KUrl url;
     url.setProtocol(protocol);
     //url.setPath(KProtocolInfo::protocolClass(protocol) == ":local" ? "/" : "");
     url.setPath("/");
-    Q3ValueList<QWidget*>::const_iterator it = m_navButtons.constBegin();
-    while (it != m_navButtons.constEnd()) {
+    QLinkedList<UrlNavigatorButton*>::const_iterator it = m_navButtons.begin();
+    const QLinkedList<UrlNavigatorButton*>::const_iterator itEnd = m_navButtons.end();
+    while (it != itEnd) {
         (*it)->close();
         (*it)->deleteLater();
         ++it;
@@ -378,17 +310,19 @@ void UrlNavigator::slotProtocolChanged(const QString& protocol)
     m_navButtons.clear();
 
     if (KProtocolInfo::protocolClass(protocol) == ":local") {
-        setUrl(url);
+        q->setUrl(url);
     }
     else {
         if (!m_host) {
-            m_protocolSeparator = new QLabel("://", this);
-            m_host = new QLineEdit(this);
+            m_protocolSeparator = new QLabel("://", q);
+            appendWidget(m_protocolSeparator);
+            m_host = new QLineEdit(q);
+            appendWidget(m_host);
 
             connect(m_host, SIGNAL(lostFocus()),
-                    this, SLOT(slotRemoteHostActivated()));
+                    q, SLOT(slotRemoteHostActivated()));
             connect(m_host, SIGNAL(returnPressed()),
-                    this, SLOT(slotRemoteHostActivated()));
+                    q, SLOT(slotRemoteHostActivated()));
         }
         else {
             m_host->setText("");
@@ -399,20 +333,7 @@ void UrlNavigator::slotProtocolChanged(const QString& protocol)
     }
 }
 
-void UrlNavigator::slotRequestActivation()
-{
-    m_dolphinView->requestActivation();
-}
-
-void UrlNavigator::slotBookmarkActivated(int index)
-{
-    m_dolphinView->statusBar()->clear();
-    m_dolphinView->requestActivation();
-
-    KBookmark bookmark = DolphinSettings::instance().bookmark(index);
-    m_dolphinView->setUrl(bookmark.url());
-}
-
+#if 0
 void UrlNavigator::slotRedirection(const KUrl& oldUrl, const KUrl& newUrl)
 {
 // kDebug() << "received redirection to " << newUrl << endl;
@@ -425,134 +346,127 @@ kDebug() << "received redirection from " << oldUrl << " to " << newUrl << endl;
 
     m_urls.append(newUrl);*/
 }
+#endif
 
-void UrlNavigator::slotContentsMoved(int x, int y)
-{
-    m_history[m_historyIndex].setContentsX(x);
-    m_history[m_historyIndex].setContentsY(y);
-}
-
-void UrlNavigator::slotClicked()
+void UrlNavigator::Private::switchView()
 {
-    if (isUrlEditable()) {
+    updateContent();
+    if (q->isUrlEditable()) {
         m_pathBox->setFocus();
-        updateContent();
-    }
-    else {
-        setUrl(m_pathBox->currentText());
-        m_dolphinView->setFocus();
+    } else {
+        q->setUrl(m_pathBox->currentText());
     }
+    emit q->requestActivation();
 }
 
-void UrlNavigator::updateHistoryElem()
+void UrlNavigator::Private::updateHistoryElem()
 {
     assert(m_historyIndex >= 0);
-    const KFileItem* item = m_dolphinView->currentFileItem();
+    const KFileItem* item = 0; // TODO: m_dolphinView->currentFileItem();
     if (item != 0) {
-        m_history[m_historyIndex].setCurrentFileName(item->name());
+        HistoryElem& hist = m_history[m_historyIndex];
+        hist.setCurrentFileName(item->name());
     }
-    m_history[m_historyIndex].setContentsX(m_dolphinView->contentsX());
-    m_history[m_historyIndex].setContentsY(m_dolphinView->contentsY());
 }
 
-void UrlNavigator::updateContent()
+void UrlNavigator::Private::updateContent()
 {
-    // delete all existing Url navigator buttons
-    Q3ValueList<QWidget*>::const_iterator it = m_navButtons.constBegin();
-    while (it != m_navButtons.constEnd()) {
-        (*it)->close();
-        (*it)->deleteLater();
-        ++it;
-    }
-    m_navButtons.clear();
+    m_bookmarkSelector->updateSelection(q->url());
 
-    m_bookmarkSelector->updateSelection(url());
+    m_toggleButton->setToolTip(QString());
+    QString path(q->url().pathOrUrl());
 
-    QToolTip::remove(m_toggleButton);
-    QString path(url().pathOrUrl());
-    const KAction* action = Dolphin::mainWin().actionCollection()->action("editable_location");
+    // TODO: prevent accessing the DolphinMainWindow out from this scope
+    //const QAction* action = dolphinView()->mainWindow()->actionCollection()->action("editable_location");
     // TODO: registry of default shortcuts
-    QString shortcut = action? action->shortcut().toString() : "Ctrl+L";
+    //QString shortcut = action? action->shortcut().toString() : "Ctrl+L";
+    const QString shortcut = "Ctrl+L";
+
     if (m_toggleButton->isChecked()) {
         delete m_protocols; m_protocols = 0;
         delete m_protocolSeparator; m_protocolSeparator = 0;
         delete m_host; m_host = 0;
+        deleteButtons();
+        m_filler->hide();
 
-        QToolTip::add(m_toggleButton, i18n("Browse (%1, Escape)",shortcut));
+        m_toggleButton->setToolTip(i18n("Browse (%1, Escape)", shortcut));
 
-        setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
+        q->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
         m_pathBox->show();
-        m_pathBox->setUrl(url());
+        m_pathBox->setUrl(q->url());
     }
     else {
-        QToolTip::add(m_toggleButton, i18n("Edit location (%1)",shortcut));
+        m_toggleButton->setToolTip(i18n("Edit location (%1)", shortcut));
 
-        setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
+        q->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
         m_pathBox->hide();
-        QString dir_name;
+        m_filler->show();
 
         // get the data from the currently selected bookmark
-        KBookmark bookmark = m_bookmarkSelector->selectedBookmark();
-        //int bookmarkIndex = m_bookmarkSelector->selectedIndex();
+        KUrl placeUrl = m_bookmarkSelector->selectedPlaceUrl();
 
-        QString bookmarkPath;
-        if (bookmark.isNull()) {
-            // No bookmark is a part of the current Url.
-            // The following code tries to guess the bookmark
+        QString placePath;
+        if (!placeUrl.isValid()) {
+            // No place is a part of the current Url.
+            // The following code tries to guess the place
             // path. E. g. "fish://root@192.168.0.2/var/lib" writes
-            // "fish://root@192.168.0.2" to 'bookmarkPath', which leads to the
+            // "fish://root@192.168.0.2" to 'placePath', which leads to the
             // navigation indication 'Custom Path > var > lib".
-            int idx = path.find(QString("//"));
-            idx = path.find("/", (idx < 0) ? 0 : idx + 2);
-            bookmarkPath = (idx < 0) ? path : path.left(idx);
+            int idx = path.indexOf(QString("//"));
+            idx = path.indexOf("/", (idx < 0) ? 0 : idx + 2);
+            placePath = (idx < 0) ? path : path.left(idx);
         }
         else {
-            bookmarkPath = bookmark.url().pathOrUrl();
+            placePath = placeUrl.pathOrUrl();
         }
-        const uint len = bookmarkPath.length();
+        const uint len = placePath.length();
 
-        // calculate the start point for the Url navigator buttons by counting
-        // the slashs inside the bookmark Url
+        // calculate the start point for the URL navigator buttons by counting
+        // the slashs inside the place URL
         int slashCount = 0;
         for (uint i = 0; i < len; ++i) {
-            if (bookmarkPath.at(i) == QChar('/')) {
+            if (placePath.at(i) == QChar('/')) {
                 ++slashCount;
             }
         }
-        if ((len > 0) && bookmarkPath.at(len - 1) == QChar('/')) {
+        if ((len > 0) && placePath.at(len - 1) == QChar('/')) {
             assert(slashCount > 0);
             --slashCount;
         }
 
-        if (!url().isLocalFile() && bookmark.isNull()) {
-            QString protocol = url().protocol();
+        const KUrl currentUrl = q->url();
+        if (!currentUrl.isLocalFile() && !placeUrl.isValid()) {
+            QString protocol = currentUrl.protocol();
             if (!m_protocols) {
-                m_protocols = new ProtocolCombo(protocol, this);
-                connect(m_protocols, SIGNAL(activated(const QString&)),
-                        this, SLOT(slotProtocolChanged(const QString&)));
+                deleteButtons();
+                m_protocols = new ProtocolCombo(protocol, q);
+                appendWidget(m_protocols);
+                connect(m_protocols, SIGNAL(activated(QString)),
+                        q, SLOT(slotProtocolChanged(QString)));
             }
             else {
                 m_protocols->setProtocol(protocol);
             }
             m_protocols->show();
 
-            if (KProtocolInfo::protocolClass(protocol) != ":local")
-            {
-                QString hostText = url().host();
+            if (KProtocolInfo::protocolClass(protocol) != ":local") {
+                QString hostText = currentUrl.host();
 
-                if (!url().user().isEmpty())
-                {
-                    hostText = url().user() + "@" + hostText;
+                if (!currentUrl.user().isEmpty()) {
+                    hostText = currentUrl.user() + '@' + hostText;
                 }
 
                 if (!m_host) {
-                    m_protocolSeparator = new QLabel("://", this);
-                    m_host = new QLineEdit(hostText, this);
+                    // ######### TODO: this code is duplicated from slotProtocolChanged!
+                    m_protocolSeparator = new QLabel("://", q);
+                    appendWidget(m_protocolSeparator);
+                    m_host = new QLineEdit(hostText, q);
+                    appendWidget(m_host);
 
                     connect(m_host, SIGNAL(lostFocus()),
-                            this, SLOT(slotRemoteHostActivated()));
+                            q, SLOT(slotRemoteHostActivated()));
                     connect(m_host, SIGNAL(returnPressed()),
-                            this, SLOT(slotRemoteHostActivated()));
+                            q, SLOT(slotRemoteHostActivated()));
                 }
                 else {
                     m_host->setText(hostText);
@@ -574,39 +488,335 @@ void UrlNavigator::updateContent()
             }
         }
 
-        // create Url navigator buttons
-        int idx = slashCount;
-        bool hasNext = true;
-        do {
-            dir_name = path.section('/', idx, idx);
-            const bool isFirstButton = (idx == slashCount);
-            hasNext = isFirstButton || !dir_name.isEmpty();
-            if (hasNext) {
-                UrlNavigatorButton* button = new UrlNavigatorButton(idx, this);
-                if (isFirstButton) {
-                    // the first Url navigator button should get the name of the
-                    // bookmark instead of the directory name
-                    QString text = bookmark.text();
-                    if (text.isEmpty()) {
-                        if (url().isLocalFile())
-                        {
-                            text = i18n("Custom Path");
-                        }
-                        else
-                        {
-                            delete button;
-                            ++idx;
-                            continue;
-                        }
+        updateButtons(path, slashCount);
+    }
+}
+
+void UrlNavigator::Private::updateButtons(const QString& path, int startIndex)
+{
+    QLinkedList<UrlNavigatorButton*>::iterator it = m_navButtons.begin();
+    const QLinkedList<UrlNavigatorButton*>::const_iterator itEnd = m_navButtons.end();
+    bool createButton = false;
+    const KUrl currentUrl = q->url();
+
+    int idx = startIndex;
+    bool hasNext = true;
+    do {
+        createButton = (it == itEnd);
+
+        const QString dirName = path.section('/', idx, idx);
+        const bool isFirstButton = (idx == startIndex);
+        hasNext = isFirstButton || !dirName.isEmpty();
+        if (hasNext) {
+            QString text;
+            if (isFirstButton) {
+                // the first URL navigator button should get the name of the
+                // place instead of the directory name
+                const KUrl placeUrl = m_bookmarkSelector->selectedPlaceUrl();
+                text = m_bookmarkSelector->selectedPlaceText();
+                if (text.isEmpty()) {
+                    if (currentUrl.isLocalFile()) {
+                        text = i18n("Custom Path");
+                    }
+                    else {
+                        ++idx;
+                        continue;
                     }
-                    button->setText(text);
                 }
+            }
+
+            UrlNavigatorButton* button = 0;
+            if (createButton) {
+                button = new UrlNavigatorButton(idx, q);
+                appendWidget(button);
+            }
+            else {
+                button = *it;
+                button->setIndex(idx);
+            }
+
+            if (isFirstButton) {
+                button->setText(text);
+            }
+
+            if (createButton) {
                 button->show();
                 m_navButtons.append(button);
-                ++idx;
             }
-        } while (hasNext);
+            else {
+                ++it;
+            }
+            ++idx;
+        }
+    } while (hasNext);
+
+    // delete buttons which are not used anymore
+    QLinkedList<UrlNavigatorButton*>::iterator itBegin = it;
+    while (it != itEnd) {
+        (*it)->close();
+        (*it)->deleteLater();
+        ++it;
     }
+    m_navButtons.erase(itBegin, m_navButtons.end());
+}
+
+void UrlNavigator::Private::deleteButtons()
+{
+    QLinkedList<UrlNavigatorButton*>::iterator itBegin = m_navButtons.begin();
+    QLinkedList<UrlNavigatorButton*>::iterator itEnd = m_navButtons.end();
+    QLinkedList<UrlNavigatorButton*>::iterator it = itBegin;
+    while (it != itEnd) {
+        (*it)->close();
+        (*it)->deleteLater();
+        ++it;
+    }
+    m_navButtons.erase(itBegin, itEnd);
+}
+
+////
+
+
+UrlNavigator::UrlNavigator(KFilePlacesModel* placesModel,
+                           const KUrl& url,
+                           QWidget* parent) :
+    QWidget(parent),
+    d( new Private(this, placesModel) )
+{
+    d->m_history.prepend(HistoryElem(url));
+
+    QFontMetrics fontMetrics(font());
+    setMinimumHeight(fontMetrics.height() + 10);
+
+    setLayout(d->m_layout);
+
+    d->updateContent();
+}
+
+UrlNavigator::~UrlNavigator()
+{
+    delete d;
+}
+
+const KUrl& UrlNavigator::url() const
+{
+    assert(!d->m_history.empty());
+    return d->m_history[d->m_historyIndex].url();
+}
+
+KUrl UrlNavigator::url(int index) const
+{
+    assert(index >= 0);
+    // keep scheme, hostname etc. maybe we will need this in the future
+    // for e.g. browsing ftp repositories.
+    KUrl newurl(url());
+    newurl.setPath(QString());
+    QString path(url().path());
+
+    if (!path.isEmpty()) {
+        if (index == 0) //prevent the last "/" from being stripped
+            path = "/"; //or we end up with an empty path
+        else
+            path = path.section('/', 0, index);
+    }
+
+    newurl.setPath(path);
+    return newurl;
+}
+
+QPoint UrlNavigator::savedPosition() const
+{
+    const HistoryElem& histElem = d->m_history[d->m_historyIndex];
+    return QPoint( histElem.contentsX(), histElem.contentsY() );
+}
+
+int UrlNavigator::historySize() const
+{
+    return d->m_history.count();
+}
+
+void UrlNavigator::goBack()
+{
+    d->updateHistoryElem();
+
+    const int count = d->m_history.count();
+    if (d->m_historyIndex < count - 1) {
+        ++d->m_historyIndex;
+        d->updateContent();
+        emit urlChanged(url());
+        emit historyChanged();
+    }
+}
+
+void UrlNavigator::goForward()
+{
+    if (d->m_historyIndex > 0) {
+        --d->m_historyIndex;
+        d->updateContent();
+        emit urlChanged(url());
+        emit historyChanged();
+    }
+}
+
+void UrlNavigator::goUp()
+{
+    setUrl(url().upUrl());
+}
+
+void UrlNavigator::goHome()
+{
+    if (d->m_homeUrl.isEmpty())
+        setUrl(QDir::homePath());
+    else
+        setUrl(d->m_homeUrl);
+}
+
+bool UrlNavigator::isUrlEditable() const
+{
+    return d->m_toggleButton->isChecked();
+}
+
+void UrlNavigator::setUrlEditable(bool editable)
+{
+    if (isUrlEditable() != editable) {
+        d->m_toggleButton->toggle();
+        d->switchView();
+    }
+}
+
+void UrlNavigator::setActive(bool active)
+{
+    if (active != d->m_active) {
+        d->m_active = active;
+        update();
+        if (active) {
+            emit activated();
+        }
+    }
+}
+
+void UrlNavigator::setShowHiddenFiles( bool show )
+{
+    d->m_showHiddenFiles = show;
+}
+
+void UrlNavigator::dropUrls(const KUrl::List& urls,
+                            const KUrl& destination)
+{
+    emit urlsDropped(urls, destination);
+}
+
+void UrlNavigator::setUrl(const KUrl& url)
+{
+    QString urlStr(url.pathOrUrl());
+
+    // TODO: a patch has been submitted by Filip Brcic which adjusts
+    // the URL for tar and zip files. See https://bugs.kde.org/show_bug.cgi?id=142781
+    // for details. The URL navigator part of the patch has not been committed yet,
+    // as the URL navigator will be subject of change and
+    // we might think of a more generic approach to check the protocol + MIME type for
+    // this use case.
+
+    //kDebug() << "setUrl(" << url << ")" << endl;
+    if ( urlStr.length() > 0 && urlStr.at(0) == '~') {
+        // replace '~' by the home directory
+        urlStr.remove(0, 1);
+        urlStr.insert(0, QDir::homePath());
+    }
+
+    const KUrl transformedUrl(urlStr);
+
+    if (d->m_historyIndex > 0) {
+        // Check whether the previous element of the history has the same Url.
+        // If yes, just go forward instead of inserting a duplicate history
+        // element.
+        HistoryElem& prevHistoryElem = d->m_history[d->m_historyIndex - 1];
+        if (transformedUrl == prevHistoryElem.url()) {
+            goForward();
+//             kDebug() << "goin' forward in history" << endl;
+            return;
+        }
+    }
+
+    if (this->url() == transformedUrl) {
+        // don't insert duplicate history elements
+//         kDebug() << "current url == transformedUrl" << endl;
+        return;
+    }
+
+    d->updateHistoryElem();
+    d->m_history.insert(d->m_historyIndex, HistoryElem(transformedUrl));
+
+    d->updateContent();
+
+    emit urlChanged(transformedUrl);
+    emit historyChanged();
+
+    // Prevent an endless growing of the history: remembering
+    // the last 100 Urls should be enough...
+    if (d->m_historyIndex > 100) {
+        d->m_history.removeFirst();
+        --d->m_historyIndex;
+    }
+
+/*    kDebug() << "history starting ====================" << endl;
+    int i = 0;
+    for (QValueListIterator<UrlNavigator::HistoryElem> it = d->m_history.begin();
+         it != d->m_history.end();
+         ++it, ++i)
+    {
+        kDebug() << i << ": " << (*it).url() << endl;
+    }
+    kDebug() << "history done ========================" << endl;*/
+
+    requestActivation();
+}
+
+void UrlNavigator::requestActivation()
+{
+    setActive(true);
+}
+
+void UrlNavigator::storeContentsPosition(int x, int y)
+{
+    HistoryElem& hist = d->m_history[d->m_historyIndex];
+    hist.setContentsX(x);
+    hist.setContentsY(y);
+}
+
+void UrlNavigator::keyReleaseEvent(QKeyEvent* event)
+{
+    QWidget::keyReleaseEvent(event);
+    if (isUrlEditable() && (event->key() == Qt::Key_Escape)) {
+        setUrlEditable(false);
+    }
+}
+
+void UrlNavigator::mouseReleaseEvent(QMouseEvent* event)
+{
+    if (event->button() == Qt::MidButton) {
+        QClipboard* clipboard = QApplication::clipboard();
+        const QMimeData* mimeData = clipboard->mimeData();
+        if (mimeData->hasText()) {
+            const QString text = mimeData->text();
+            setUrl(KUrl(text));
+        }
+    }
+    QWidget::mouseReleaseEvent(event);
+}
+
+bool UrlNavigator::isActive() const
+{
+    return d->m_active;
+}
+
+bool UrlNavigator::showHiddenFiles() const
+{
+    return d->m_showHiddenFiles;
+}
+
+void UrlNavigator::setHomeUrl(const QString& homeUrl)
+{
+    d->m_homeUrl = homeUrl;
 }
 
 #include "urlnavigator.moc"