File indexing completed on 2024-04-28 04:37:27

 /*
     SPDX-FileCopyrightText: 2007 Alexander Dymo <adymo@kdevelop.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "textdocument.h"
 
 #include <QAction>
 #include <QFile>
 #include <QMenu>
 #include <QMimeDatabase>
 #include <QPointer>
 #include <QWidget>
 
 #include <KActionCollection>
 #include <KConfigGroup>
 #include <KLocalizedString>
 #include <KMessageBox>
 #include <KMessageBox_KDevCompat>
 #include <KTextEditor/View>
 #include <KTextEditor/Document>
 #include <KTextEditor/ModificationInterface>
 #include <KTextEditor/CodeCompletionInterface>
 #include <KTextEditor/MarkInterface>
 
 #include <interfaces/context.h>
 #include <interfaces/contextmenuextension.h>
 #include <interfaces/ilanguagecontroller.h>
 #include <interfaces/icompletionsettings.h>
 #include <interfaces/iprojectcontroller.h>
 #include <interfaces/iproject.h>
 
 #include <vcs/interfaces/icontentawareversioncontrol.h>
 
 #include <language/interfaces/editorcontext.h>
 #include <language/backgroundparser/backgroundparser.h>
 
 #include <util/foregroundlock.h>
 
 #include "core.h"
 #include "mainwindow.h"
 #include "uicontroller.h"
 #include "partcontroller.h"
 #include "plugincontroller.h"
 #include "documentcontroller.h"
 #include "ktexteditorpluginintegration.h"
 #include "debug.h"
 
 #include <path.h>
 #include <shellutils.h>
 
 namespace KDevelop {
 
 const int MAX_DOC_SETTINGS = 20;
 
 // This sets cursor position and selection on the view to the given
 // range. Selection is set only for non-empty ranges
 // Factored into a function since its needed in 3 places already
 static void selectAndReveal( KTextEditor::View* view, const KTextEditor::Range& range ) {
     Q_ASSERT(view);
     if (range.isValid()) {
         view->setCursorPosition(range.start());
         view->setSelection(range);
     }
 }
 
 class TextDocumentPrivate
 {
 public:
     explicit TextDocumentPrivate(TextDocument *textDocument)
         : q(textDocument)
     {
     }
 
     ~TextDocumentPrivate()
     {
         // Handle the case we are being deleted while the context menu is not yet hidden.
         // We want to remove all actions we added to it, especially those not owned by the document
         // but by the plugins (i.e. created on-the-fly during ContextMenuExtension::populateMenu
         // with ownership set to our addedContextMenu)
         cleanContextMenu();
 
         saveSessionConfig();
         delete document;
     }
 
     void setStatus(KTextEditor::Document* document, bool dirty)
     {
         QIcon statusIcon;
 
         if (document->isModified())
             if (dirty) {
                 state = IDocument::DirtyAndModified;
                 statusIcon = QIcon::fromTheme(QStringLiteral("edit-delete"));
             } else {
                 state = IDocument::Modified;
                 statusIcon = QIcon::fromTheme(QStringLiteral("document-save"));
             }
         else
             if (dirty) {
                 state = IDocument::Dirty;
                 statusIcon = QIcon::fromTheme(QStringLiteral("document-revert"));
             } else {
                 state = IDocument::Clean;
             }
 
         q->notifyStateChanged();
         q->setStatusIcon(statusIcon);
     }
 
     inline KConfigGroup katePartSettingsGroup() const
     {
         return KSharedConfig::openConfig()->group("KatePart Settings");
     }
 
     inline QString docConfigGroupName() const
     {
         return document->url().toDisplayString(QUrl::PreferLocalFile);
     }
 
     inline KConfigGroup docConfigGroup() const
     {
         return katePartSettingsGroup().group(docConfigGroupName());
     }
 
     void saveSessionConfig()
     {
         if(document && document->url().isValid()) {
             // make sure only MAX_DOC_SETTINGS entries are stored
             KConfigGroup katePartSettings = katePartSettingsGroup();
             // ordered list of documents
             QStringList documents = katePartSettings.readEntry("documents", QStringList());
             // ensure this document is "new", i.e. at the end of the list
             documents.removeOne(docConfigGroupName());
             documents.append(docConfigGroupName());
             // remove "old" documents + their group
             while(documents.size() >= MAX_DOC_SETTINGS) {
                 katePartSettings.group(documents.takeFirst()).deleteGroup();
             }
             // update order
             katePartSettings.writeEntry("documents", documents);
 
             // actually save session config
             KConfigGroup group = docConfigGroup();
             document->writeSessionConfig(group);
         }
     }
 
     void loadSessionConfig()
     {
         if (!document || !katePartSettingsGroup().hasGroup(docConfigGroupName())) {
             return;
         }
 
         document->readSessionConfig(docConfigGroup(), {QStringLiteral("SkipUrl")});
     }
 
     // Determines whether the current contents of this document in the editor
     // could be retrieved from the VCS if they were dismissed.
     void queryCanRecreateFromVcs(KTextEditor::Document* document) const {
         // Find projects by checking which one contains the file's parent directory,
         // to avoid issues with the cmake manager temporarily removing files from a project
         // during reloading.
         KDevelop::Path path(document->url());
         const auto projects = Core::self()->projectController()->projects();
         auto projectIt = std::find_if(projects.begin(), projects.end(), [&](KDevelop::IProject* project) {
             return project->path().isParentOf(path);
         });
         if (projectIt == projects.end()) {
             return;
         }
         IProject* project = *projectIt;
 
         IContentAwareVersionControl* iface;
         iface = qobject_cast< KDevelop::IContentAwareVersionControl* >(project->versionControlPlugin());
         if (!iface) {
             return;
         }
         if ( !qobject_cast<KTextEditor::ModificationInterface*>( document ) ) {
             return;
         }
 
         CheckInRepositoryJob* req = iface->isInRepository( document );
         if ( !req ) {
             return;
         }
         QObject::connect(req, &CheckInRepositoryJob::finished,
                             q, &TextDocument::repositoryCheckFinished);
         // Abort the request when the user edits the document
         QObject::connect(q->textDocument(), &KTextEditor::Document::textChanged,
                             req, &CheckInRepositoryJob::abort);
     }
 
     void modifiedOnDisk(KTextEditor::Document *document, bool /*isModified*/,
         KTextEditor::ModificationInterface::ModifiedOnDiskReason reason)
     {
         bool dirty = false;
         switch (reason)
         {
             case KTextEditor::ModificationInterface::OnDiskUnmodified:
                 break;
             case KTextEditor::ModificationInterface::OnDiskModified:
             case KTextEditor::ModificationInterface::OnDiskCreated:
             case KTextEditor::ModificationInterface::OnDiskDeleted:
                 dirty = true;
                 break;
         }
 
         // In some cases, the VCS (e.g. git) can know whether the old contents are "valuable", i.e.
         // not retrieveable from the VCS. If that is not the case, then the document can safely be
         // reloaded without displaying a dialog asking the user.
         if ( dirty ) {
             queryCanRecreateFromVcs(document);
         }
         setStatus(document, dirty);
     }
 
     void cleanContextMenu()
     {
         if (!addedContextMenu) {
             return;
         }
 
         if (currentContextMenu) {
             const auto actions = addedContextMenu->actions();
             for (QAction* action : actions) {
                 currentContextMenu->removeAction(action);
             }
             currentContextMenu.clear();
         }
 
         // The addedContextMenu owns those actions created on-the-fly for the context menu
         // (other than those actions only shared for the context menu, but also used elsewhere)
         // and thuse deletes then on its own destruction.
         // Some actions potentially could be connected to triggered-signal handlers
         // using Qt::QueuedConnection (at least SwitchToBuddyPlugin does so currently).
         // Deleting them here also would also delete the connection before the handler is triggered.
         // So we delay the menu's and thus their destruction to the next eventloop by default.
         addedContextMenu->deleteLater();
         addedContextMenu = nullptr;
     }
 
     TextDocument * const q;
 
     QPointer<KTextEditor::Document> document;
     IDocument::DocumentState state = IDocument::Clean;
     QString encoding;
     bool loaded = false;
     // we want to remove the added stuff when the menu hides
     QMenu* addedContextMenu = nullptr;
     QPointer<QMenu> currentContextMenu;
 };
 
 class TextViewPrivate
 {
 public:
     explicit TextViewPrivate(TextView* q) : q(q) {}
 
     TextView* const q;
     QPointer<KTextEditor::View> view;
     KTextEditor::Range initialRange;
 };
 
 TextDocument::TextDocument(const QUrl &url, ICore* core, const QString& encoding)
     : PartDocument(url, core)
     , d_ptr(new TextDocumentPrivate(this))
 {
     Q_D(TextDocument);
 
     d->encoding = encoding;
 }
 
 TextDocument::~TextDocument() = default;
 
 KTextEditor::Document *TextDocument::textDocument() const
 {
     Q_D(const TextDocument);
 
     return d->document;
 }
 
 QWidget *TextDocument::createViewWidget(QWidget *parent)
 {
     Q_D(TextDocument);
 
     KTextEditor::View* view = nullptr;
 
     if (!d->document)
     {
         d->document = Core::self()->partControllerInternal()->createTextPart();
 
         // Connect to the first text changed signal, it occurs before the completed() signal
         connect(d->document.data(), &KTextEditor::Document::textChanged, this, &TextDocument::slotDocumentLoaded);
         // Also connect to the completed signal, sometimes the first text changed signal is missed because the part loads too quickly (? TODO - confirm this is necessary)
         connect(d->document.data(), QOverload<>::of(&KTextEditor::Document::completed),
                 this, &TextDocument::slotDocumentLoaded);
 
         // force a reparse when a document gets reloaded
         connect(d->document.data(), &KTextEditor::Document::reloaded,
                 this, [] (KTextEditor::Document* document) {
             ICore::self()->languageController()->backgroundParser()->addDocument(IndexedString(document->url()),
                     TopDUContext::AllDeclarationsContextsAndUses | TopDUContext::ForceUpdate,
                     BackgroundParser::BestPriority, nullptr);
         });
 
         // Set encoding passed via constructor
         // Needs to be done before openUrl, else katepart won't use the encoding
         // @see KTextEditor::Document::setEncoding
         if (!d->encoding.isEmpty())
             d->document->setEncoding(d->encoding);
 
         if (!url().isEmpty() && !DocumentController::isEmptyDocumentUrl(url()))
             d->document->openUrl( url() );
 
         d->setStatus(d->document, false);
 
         /* It appears, that by default a part will be deleted the
            first view containing it is deleted.  Since we do want
            to have several views, disable that behaviour.  */
         d->document->setAutoDeletePart(false);
 
         Core::self()->partController()->addPart(d->document, false);
 
         d->loadSessionConfig();
 
         connect(d->document.data(), &KTextEditor::Document::modifiedChanged,
                  this, &TextDocument::newDocumentStatus);
         connect(d->document.data(), &KTextEditor::Document::textChanged,
                  this, &TextDocument::textChanged);
         connect(d->document.data(), &KTextEditor::Document::documentUrlChanged,
                  this, &TextDocument::documentUrlChanged);
         connect(d->document.data(), &KTextEditor::Document::documentSavedOrUploaded,
                  this, &TextDocument::documentSaved );
 
         if (qobject_cast<KTextEditor::MarkInterface*>(d->document)) {
             // can't use new signal/slot syntax here, MarkInterface is not a QObject
             connect(d->document.data(), SIGNAL(marksChanged(KTextEditor::Document*)),
                     this, SLOT(saveSessionConfig()));
         }
 
         if (auto iface = qobject_cast<KTextEditor::ModificationInterface*>(d->document)) {
             iface->setModifiedOnDiskWarning(true);
             // can't use new signal/slot syntax here, ModificationInterface is not a QObject
             connect(d->document.data(), SIGNAL(modifiedOnDisk(KTextEditor::Document*,bool,KTextEditor::ModificationInterface::ModifiedOnDiskReason)),
                 this, SLOT(modifiedOnDisk(KTextEditor::Document*,bool,KTextEditor::ModificationInterface::ModifiedOnDiskReason)));
         }
 
         notifyTextDocumentCreated();
     }
 
     view = d->document->createView(parent, Core::self()->uiControllerInternal()->defaultMainWindow()->kateWrapper()->interface());
 
     // get rid of some actions regarding the config dialog, we merge that one into the kdevelop menu already
     delete view->actionCollection()->action(QStringLiteral("set_confdlg"));
     delete view->actionCollection()->action(QStringLiteral("editor_options"));
 
     view->setStatusBarEnabled(Core::self()->partControllerInternal()->showTextEditorStatusBar());
 
     connect(view, &KTextEditor::View::contextMenuAboutToShow, this, &TextDocument::populateContextMenu);
 
     if (auto* cc = qobject_cast<KTextEditor::CodeCompletionInterface*>(view))
         cc->setAutomaticInvocationEnabled(core()->languageController()->completionSettings()->automaticCompletionEnabled());
 
     return view;
 }
 
 KParts::Part *TextDocument::partForView(QWidget *view) const
 {
     Q_D(const TextDocument);
 
     if (d->document && d->document->views().contains(qobject_cast<KTextEditor::View*>(view)))
         return d->document;
     return nullptr;
 }
 
 
 
 // KDevelop::IDocument implementation
 
 void TextDocument::reload()
 {
     Q_D(TextDocument);
 
     if (!d->document)
         return;
 
     KTextEditor::ModificationInterface* modif=nullptr;
     if(d->state ==Dirty) {
         modif = qobject_cast<KTextEditor::ModificationInterface*>(d->document);
         modif->setModifiedOnDiskWarning(false);
     }
     d->document->documentReload();
     if(modif)
         modif->setModifiedOnDiskWarning(true);
 }
 
 bool TextDocument::save(DocumentSaveMode mode)
 {
     Q_D(TextDocument);
 
     if (!d->document)
         return true;
 
     if (mode & Discard)
         return true;
 
     switch (d->state)
     {
         case IDocument::Clean:
             return true;
 
         case IDocument::Modified:
             break;
 
         case IDocument::Dirty:
         case IDocument::DirtyAndModified:
             if (!(mode & Silent))
             {
                 int code = KMessageBox::warningTwoActionsCancel(
                     Core::self()->uiController()->activeMainWindow(),
                     i18n("The file \"%1\" is modified on disk.\n\nAre "
                          "you sure you want to overwrite it? (External "
                          "changes will be lost.)",
                          d->document->url().toLocalFile()),
                     i18nc("@title:window", "Document Externally Modified"),
                     KGuiItem(i18nc("@action:button", "Overwrite External Changes"), QStringLiteral("document-save")),
                     KStandardGuiItem::discard());
                 if (code != KMessageBox::PrimaryAction)
                     return false;
             }
             break;
     }
 
     if (!KDevelop::ensureWritable(QList<QUrl>() << url())) {
         return false;
     }
 
     return d->document->documentSave();
 }
 
 IDocument::DocumentState TextDocument::state() const
 {
     Q_D(const TextDocument);
 
     return d->state;
 }
 
 KTextEditor::Cursor KDevelop::TextDocument::cursorPosition() const
 {
     Q_D(const TextDocument);
 
     if (!d->document) {
         return KTextEditor::Cursor::invalid();
     }
 
     KTextEditor::View *view = activeTextView();
 
     if (view)
         return view->cursorPosition();
 
     return KTextEditor::Cursor::invalid();
 }
 
 void TextDocument::setCursorPosition(const KTextEditor::Cursor &cursor)
 {
     Q_D(TextDocument);
 
     if (!cursor.isValid() || !d->document)
         return;
 
     KTextEditor::View *view = activeTextView();
 
     // Rodda: Cursor must be accurate here, to the definition of accurate for KTextEditor::Cursor.
     // ie, starting from 0,0
 
     if (view)
         selectAndReveal(view, {cursor, cursor});
 }
 
 KTextEditor::Range TextDocument::textSelection() const
 {
     Q_D(const TextDocument);
 
     if (!d->document) {
         return KTextEditor::Range::invalid();
     }
 
     KTextEditor::View *view = activeTextView();
 
     if (view && view->selection()) {
         return view->selectionRange();
     }
 
     return PartDocument::textSelection();
 }
 
 QString TextDocument::text(const KTextEditor::Range &range) const
 {
     VERIFY_FOREGROUND_LOCKED
     Q_D(const TextDocument);
 
     if (!d->document) {
         return QString();
     }
 
     return d->document->text( range );
 }
 
 QString TextDocument::textLine() const
 {
     VERIFY_FOREGROUND_LOCKED
     Q_D(const TextDocument);
 
     if (!d->document) {
         return QString();
     }
 
     KTextEditor::View *view = activeTextView();
 
     if (view) {
         return d->document->line( view->cursorPosition().line() );
     }
 
     return PartDocument::textLine();
 }
 
 QString TextDocument::textWord() const
 {
     VERIFY_FOREGROUND_LOCKED
     Q_D(const TextDocument);
 
     if (!d->document) {
         return QString();
     }
 
     KTextEditor::View *view = activeTextView();
 
     if (view) {
         KTextEditor::Cursor start = view->cursorPosition();
         qCDebug(SHELL) << "got start position from view:" << start.line() << start.column();
         QString linestr = textLine();
         int startPos = qMax( qMin( start.column(), linestr.length() - 1 ), 0 );
         int endPos = startPos;
         startPos --;
         while (startPos >= 0 &&
                (linestr[startPos].isLetterOrNumber() || linestr[startPos] == QLatin1Char('_') || linestr[startPos] == QLatin1Char('~'))) {
             --startPos;
         }
 
         while (endPos < linestr.length() &&
                (linestr[endPos].isLetterOrNumber() || linestr[endPos] == QLatin1Char('_') || linestr[endPos] == QLatin1Char('~'))) {
             ++endPos;
         }
         if( startPos != endPos )
         {
             qCDebug(SHELL) << "found word" << startPos << endPos << linestr.mid( startPos+1, endPos - startPos - 1 );
             return linestr.mid( startPos + 1, endPos - startPos - 1 );
         }
     }
 
     return PartDocument::textWord();
 }
 
 void TextDocument::setTextSelection(const KTextEditor::Range &range)
 {
     Q_D(TextDocument);
 
     if (!range.isValid() || !d->document)
         return;
 
     KTextEditor::View *view = activeTextView();
 
     if (view) {
         selectAndReveal(view, range);
     }
 }
 
 Sublime::View* TextDocument::newView(Sublime::Document* doc)
 {
     Q_UNUSED(doc);
     return new TextView(this);
 }
 
 }
 
 KDevelop::TextView::TextView(TextDocument * doc)
     : View(doc, View::TakeOwnership)
     , d_ptr(new TextViewPrivate(this))
 {
 }
 
 KDevelop::TextView::~TextView() = default;
 
 QWidget * KDevelop::TextView::createWidget(QWidget * parent)
 {
     Q_D(TextView);
 
     auto textDocument = qobject_cast<TextDocument*>(document());
     Q_ASSERT(textDocument);
     QWidget* widget = textDocument->createViewWidget(parent);
     d->view = qobject_cast<KTextEditor::View*>(widget);
     Q_ASSERT(d->view);
     connect(d->view.data(), &KTextEditor::View::cursorPositionChanged, this, &KDevelop::TextView::sendStatusChanged);
     return widget;
 }
 
 void KDevelop::TextView::setInitialRange(const KTextEditor::Range& range)
 {
     Q_D(TextView);
 
     if (d->view) {
         selectAndReveal(d->view, range);
     } else {
         d->initialRange = range;
     }
 }
 
 KTextEditor::Range KDevelop::TextView::initialRange() const
 {
     Q_D(const TextView);
 
     return d->initialRange;
 }
 
 void KDevelop::TextView::readSessionConfig(KConfigGroup& config)
 {
     Q_D(TextView);
 
     if (!d->view) {
         return;
     }
     d->view->readSessionConfig(config);
 }
 
 void KDevelop::TextView::writeSessionConfig(KConfigGroup& config)
 {
     Q_D(TextView);
 
     if (!d->view) {
         return;
     }
     d->view->writeSessionConfig(config);
 }
 
 QString KDevelop::TextDocument::documentType() const
 {
     return QStringLiteral("Text");
 }
 
 QIcon KDevelop::TextDocument::defaultIcon() const
 {
     Q_D(const TextDocument);
 
     if (d->document) {
         QMimeType mime = QMimeDatabase().mimeTypeForName(d->document->mimeType());
         QIcon icon = QIcon::fromTheme(mime.iconName());
         if (!icon.isNull()) {
             return icon;
         }
     }
     return PartDocument::defaultIcon();
 }
 
 KTextEditor::View *KDevelop::TextView::textView() const
 {
     Q_D(const TextView);
 
     return d->view;
 }
 
 QString KDevelop::TextView::viewStatus() const
 {
     Q_D(const TextView);
 
     // only show status when KTextEditor's own status bar isn't already enabled
     const bool showStatus = !Core::self()->partControllerInternal()->showTextEditorStatusBar();
     if (!showStatus) {
         return QString();
     }
 
     const KTextEditor::Cursor pos = d->view ? d->view->cursorPosition() : KTextEditor::Cursor::invalid();
     return i18n(" Line: %1 Col: %2 ", pos.line() + 1, pos.column() + 1);
 }
 
 void KDevelop::TextView::sendStatusChanged()
 {
     emit statusChanged(this);
 }
 
 KTextEditor::View* KDevelop::TextDocument::activeTextView() const
 {
     KTextEditor::View* fallback = nullptr;
     for (auto view : views()) {
         auto textView = qobject_cast<TextView*>(view)->textView();
         if (!textView) {
             continue;
         }
         if (textView->hasFocus()) {
             return textView;
         } else if (textView->isVisible()) {
             fallback = textView;
         } else if (!fallback) {
             fallback = textView;
         }
     }
     return fallback;
 }
 
 void KDevelop::TextDocument::newDocumentStatus(KTextEditor::Document *document)
 {
     Q_D(TextDocument);
 
     bool dirty = (d->state == IDocument::Dirty || d->state == IDocument::DirtyAndModified);
 
     d->setStatus(document, dirty);
 }
 
 void KDevelop::TextDocument::textChanged(KTextEditor::Document *document)
 {
     Q_UNUSED(document);
     notifyContentChanged();
 }
 
 void KDevelop::TextDocument::unpopulateContextMenu()
 {
     Q_D(TextDocument);
 
     auto* menu = qobject_cast<QMenu*>(sender());
 
     disconnect(menu, &QMenu::aboutToHide, this, &TextDocument::unpopulateContextMenu);
 
     d->cleanContextMenu();
 }
 
 void KDevelop::TextDocument::populateContextMenu( KTextEditor::View* v, QMenu* menu )
 {
     Q_D(TextDocument);
 
     if (d->addedContextMenu) {
         qCWarning(SHELL) << "populateContextMenu() called while we still handled another menu.";
         d->cleanContextMenu();
     }
 
     d->currentContextMenu = menu;
     connect(menu, &QMenu::aboutToHide, this, &TextDocument::unpopulateContextMenu);
 
     d->addedContextMenu = new QMenu();
 
     EditorContext c(v, v->cursorPosition());
     auto extensions = Core::self()->pluginController()->queryPluginsForContextMenuExtensions(&c, d->addedContextMenu);
 
     ContextMenuExtension::populateMenu(d->addedContextMenu, extensions);
 
     const auto actions = d->addedContextMenu->actions();
     for (QAction* action : actions) {
         menu->addAction(action);
     }
 }
 
 void KDevelop::TextDocument::repositoryCheckFinished(bool canRecreate) {
     Q_D(TextDocument);
 
     if ( d->state != IDocument::Dirty && d->state != IDocument::DirtyAndModified ) {
         // document is not dirty for whatever reason, nothing to do.
         return;
     }
     if ( ! canRecreate ) {
         return;
     }
     KTextEditor::ModificationInterface* modIface = qobject_cast<KTextEditor::ModificationInterface*>( d->document );
     Q_ASSERT(modIface);
     // Ok, all safe, we can clean up the document. Close it if the file is gone,
     // and reload if it's still there.
     d->setStatus(d->document, false);
     modIface->setModifiedOnDisk(KTextEditor::ModificationInterface::OnDiskUnmodified);
     if ( QFile::exists(d->document->url().path()) ) {
         reload();
     } else {
         close(KDevelop::IDocument::Discard);
     }
 }
 
 void KDevelop::TextDocument::slotDocumentLoaded()
 {
     Q_D(TextDocument);
 
     if (d->loaded)
         return;
     // Tell the editor integrator first
     d->loaded = true;
     notifyLoaded();
 }
 
 void KDevelop::TextDocument::documentSaved(KTextEditor::Document* document, bool saveAs)
 {
     Q_UNUSED(document);
     Q_UNUSED(saveAs);
     notifySaved();
     notifyStateChanged();
 }
 
 void KDevelop::TextDocument::documentUrlChanged(KTextEditor::Document* document)
 {
     Q_D(TextDocument);
 
     Q_UNUSED(document);
     if (url() != d->document->url())
         setUrl(d->document->url());
 }
 
 #include "moc_textdocument.cpp"