File indexing completed on 2024-04-28 15:30:21

 /*
     SPDX-FileCopyrightText: 2005-2006 Hamish Rodda <rodda@kde.org>
     SPDX-FileCopyrightText: 2007-2008 David Nolden <david.nolden.kdevelop@art-master.de>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "katecompletionwidget.h"
 
 #include <ktexteditor/codecompletionmodelcontrollerinterface.h>
 
 #include "katebuffer.h"
 #include "kateconfig.h"
 #include "katedocument.h"
 #include "katerenderer.h"
 #include "kateview.h"
 
 #include "documentation_tip.h"
 #include "kateargumenthintmodel.h"
 #include "kateargumenthinttree.h"
 #include "katecompletionmodel.h"
 #include "katecompletiontree.h"
 #include "katepartdebug.h"
 
 #include <QAbstractScrollArea>
 #include <QApplication>
 #include <QBoxLayout>
 #include <QHeaderView>
 #include <QLabel>
 #include <QPushButton>
 #include <QScreen>
 #include <QScrollBar>
 #include <QSizeGrip>
 #include <QTimer>
 #include <QToolButton>
 
 #include <KWindowSystem>
 
 const bool hideAutomaticCompletionOnExactMatch = true;
 
 #define CALLCI(WHAT, WHATELSE, WHAT2, model, FUNC)                                                                                                             \
     {                                                                                                                                                          \
         static KTextEditor::CodeCompletionModelControllerInterface defaultIf;                                                                                  \
         KTextEditor::CodeCompletionModelControllerInterface *ret = dynamic_cast<KTextEditor::CodeCompletionModelControllerInterface *>(model);                 \
         if (!ret) {                                                                                                                                            \
             WHAT2 defaultIf.FUNC;                                                                                                                              \
         } else                                                                                                                                                 \
             WHAT2 ret->FUNC;                                                                                                                                   \
     }
 
 static KTextEditor::Range _completionRange(KTextEditor::CodeCompletionModel *model, KTextEditor::View *view, const KTextEditor::Cursor &cursor)
 {
     CALLCI(return, , return, model, completionRange(view, cursor));
 }
 
 static KTextEditor::Range _updateRange(KTextEditor::CodeCompletionModel *model, KTextEditor::View *view, KTextEditor::Range &range)
 {
     CALLCI(, return range, return, model, updateCompletionRange(view, range));
 }
 
 static QString
 _filterString(KTextEditor::CodeCompletionModel *model, KTextEditor::View *view, const KTextEditor::Range &range, const KTextEditor::Cursor &cursor)
 {
     CALLCI(return, , return, model, filterString(view, range, cursor));
 }
 
 static bool
 _shouldAbortCompletion(KTextEditor::CodeCompletionModel *model, KTextEditor::View *view, const KTextEditor::Range &range, const QString &currentCompletion)
 {
     CALLCI(return, , return, model, shouldAbortCompletion(view, range, currentCompletion));
 }
 
 static void _aborted(KTextEditor::CodeCompletionModel *model, KTextEditor::View *view)
 {
     CALLCI(return, , return, model, aborted(view));
 }
 
 static bool _shouldStartCompletion(KTextEditor::CodeCompletionModel *model,
                                    KTextEditor::View *view,
                                    const QString &automaticInvocationLine,
                                    bool m_lastInsertionByUser,
                                    const KTextEditor::Cursor &cursor)
 {
     CALLCI(return, , return, model, shouldStartCompletion(view, automaticInvocationLine, m_lastInsertionByUser, cursor));
 }
 
 KateCompletionWidget::KateCompletionWidget(KTextEditor::ViewPrivate *parent)
     : QFrame(parent, Qt::ToolTip)
     , m_presentationModel(new KateCompletionModel(this))
     , m_entryList(new KateCompletionTree(this))
     , m_argumentHintModel(new KateArgumentHintModel(this))
     , m_argumentHintTree(new KateArgumentHintTree(this))
     , m_docTip(new DocTip(this))
     , m_automaticInvocationDelay(100)
     , m_filterInstalled(false)
     , m_lastInsertionByUser(false)
     , m_inCompletionList(false)
     , m_isSuspended(false)
     , m_dontShowArgumentHints(false)
     , m_needShow(false)
     , m_hadCompletionNavigation(false)
     , m_noAutoHide(false)
     , m_completionEditRunning(false)
     , m_expandedAddedHeightBase(0)
     , m_lastInvocationType(KTextEditor::CodeCompletionModel::AutomaticInvocation)
 {
     // setup initial config for presentation model
     // FIXME: this was imported from the config dialog deactivated years ago
     // without this setup either nothing shows or it segfaults
 
     connect(parent, &KTextEditor::ViewPrivate::navigateAccept, this, &KateCompletionWidget::navigateAccept);
     connect(parent, &KTextEditor::ViewPrivate::navigateBack, this, &KateCompletionWidget::navigateBack);
     connect(parent, &KTextEditor::ViewPrivate::navigateDown, this, &KateCompletionWidget::navigateDown);
     connect(parent, &KTextEditor::ViewPrivate::navigateLeft, this, &KateCompletionWidget::navigateLeft);
     connect(parent, &KTextEditor::ViewPrivate::navigateRight, this, &KateCompletionWidget::navigateRight);
     connect(parent, &KTextEditor::ViewPrivate::navigateUp, this, &KateCompletionWidget::navigateUp);
 
     setFrameStyle(QFrame::Box | QFrame::Raised);
     setLineWidth(1);
     // setWindowOpacity(0.8);
 
     m_entryList->setModel(m_presentationModel);
     m_entryList->setColumnWidth(0, 0); // These will be determined automatically in KateCompletionTree::resizeColumns
     m_entryList->setColumnWidth(1, 0);
     m_entryList->setColumnWidth(2, 0);
 
     m_argumentHintTree->setParent(nullptr, Qt::ToolTip);
     m_argumentHintTree->setModel(m_argumentHintModel);
 
     // trigger completion on double click on completion list
     connect(m_entryList, &KateCompletionTree::doubleClicked, this, &KateCompletionWidget::execute);
 
     connect(m_argumentHintTree->verticalScrollBar(), &QScrollBar::valueChanged, m_argumentHintModel, &KateArgumentHintModel::placeExpandingWidgets);
     connect(view(), &KTextEditor::ViewPrivate::focusOut, this, &KateCompletionWidget::viewFocusOut);
 
     m_automaticInvocationTimer = new QTimer(this);
     m_automaticInvocationTimer->setSingleShot(true);
     connect(m_automaticInvocationTimer, &QTimer::timeout, this, &KateCompletionWidget::automaticInvocation);
 
     // Keep branches expanded
     connect(m_presentationModel, &KateCompletionModel::modelReset, this, &KateCompletionWidget::modelReset);
     connect(m_presentationModel, &KateCompletionModel::rowsInserted, this, &KateCompletionWidget::rowsInserted);
     connect(m_argumentHintModel, &KateArgumentHintModel::contentStateChanged, this, &KateCompletionWidget::argumentHintsChanged);
 
     // No smart lock, no queued connects
     connect(view(), &KTextEditor::ViewPrivate::cursorPositionChanged, this, &KateCompletionWidget::cursorPositionChanged);
     connect(view(), &KTextEditor::ViewPrivate::verticalScrollPositionChanged, this, [this] {
         abortCompletion();
     });
 
     // connect to all possible editing primitives
     connect(&view()->doc()->buffer(), &KateBuffer::lineWrapped, this, &KateCompletionWidget::wrapLine);
     connect(&view()->doc()->buffer(), &KateBuffer::lineUnwrapped, this, &KateCompletionWidget::unwrapLine);
     connect(&view()->doc()->buffer(), &KateBuffer::textInserted, this, &KateCompletionWidget::insertText);
     connect(&view()->doc()->buffer(), &KateBuffer::textRemoved, this, &KateCompletionWidget::removeText);
 
     // This is a non-focus widget, it is passed keyboard input from the view
 
     // We need to do this, because else the focus goes to nirvana without any control when the completion-widget is clicked.
     setFocusPolicy(Qt::ClickFocus);
     m_argumentHintTree->setFocusPolicy(Qt::ClickFocus);
 
     const auto children = findChildren<QWidget *>();
     for (QWidget *childWidget : children) {
         childWidget->setFocusPolicy(Qt::NoFocus);
     }
 
     // Position the entry-list so a frame can be drawn around it
     m_entryList->move(frameWidth(), frameWidth());
 
     m_docTip->setVisible(false);
 }
 
 KateCompletionWidget::~KateCompletionWidget()
 {
     // ensure no slot triggered during destruction => else we access already invalidated stuff
     m_presentationModel->disconnect(this);
     m_argumentHintModel->disconnect(this);
 
     delete m_argumentHintTree;
     m_argumentHintTree = nullptr;
 }
 
 void KateCompletionWidget::viewFocusOut()
 {
     if (QApplication::focusWidget() != this) {
         abortCompletion();
     }
 }
 
 void KateCompletionWidget::focusOutEvent(QFocusEvent *)
 {
     abortCompletion();
 }
 
 void KateCompletionWidget::modelContentChanged()
 {
     ////qCDebug(LOG_KTE)<<">>>>>>>>>>>>>>>>";
     if (m_completionRanges.isEmpty()) {
         // qCDebug(LOG_KTE) << "content changed, but no completion active";
         abortCompletion();
         return;
     }
 
     if (!view()->hasFocus()) {
         // qCDebug(LOG_KTE) << "view does not have focus";
         return;
     }
 
     if (!m_waitingForReset.isEmpty()) {
         // qCDebug(LOG_KTE) << "waiting for" << m_waitingForReset.size() << "completion-models to reset";
         return;
     }
 
     int realItemCount = 0;
     const auto completionModels = m_presentationModel->completionModels();
     for (KTextEditor::CodeCompletionModel *model : completionModels) {
         realItemCount += model->rowCount();
     }
     if (!m_isSuspended && ((isHidden() && m_argumentHintTree->isHidden()) || m_needShow) && realItemCount != 0) {
         m_needShow = false;
         updateAndShow();
     }
 
     if (m_argumentHintModel->rowCount(QModelIndex()) == 0) {
         m_argumentHintTree->hide();
     }
 
     if (m_presentationModel->rowCount(QModelIndex()) == 0) {
         hide();
     }
 
     // For automatic invocations, only autoselect first completion entry when enabled in the config
     if (m_lastInvocationType != KTextEditor::CodeCompletionModel::AutomaticInvocation || view()->config()->automaticCompletionPreselectFirst()) {
         m_entryList->setCurrentIndex(model()->index(0, 0));
     }
     // With each filtering items can be added or removed, so we have to reset the current index here so we always have a selected item
     if (!model()->indexIsItem(m_entryList->currentIndex())) {
         QModelIndex firstIndex = model()->index(0, 0, m_entryList->currentIndex());
         m_entryList->setCurrentIndex(firstIndex);
         // m_entryList->scrollTo(firstIndex, QAbstractItemView::PositionAtTop);
     }
 
     updateHeight();
 
     // New items for the argument-hint tree may have arrived, so check whether it needs to be shown
     if (m_argumentHintTree->isHidden() && !m_dontShowArgumentHints && m_argumentHintModel->rowCount(QModelIndex()) != 0) {
         m_argumentHintTree->show();
     }
 
     if (!m_noAutoHide && hideAutomaticCompletionOnExactMatch && !isHidden() && m_lastInvocationType == KTextEditor::CodeCompletionModel::AutomaticInvocation
         && m_presentationModel->shouldMatchHideCompletionList()) {
         hide();
     } else if (isHidden() && !m_presentationModel->shouldMatchHideCompletionList() && m_presentationModel->rowCount(QModelIndex())) {
         show();
     }
 }
 
 KateArgumentHintTree *KateCompletionWidget::argumentHintTree() const
 {
     return m_argumentHintTree;
 }
 
 KateArgumentHintModel *KateCompletionWidget::argumentHintModel() const
 {
     return m_argumentHintModel;
 }
 
 const KateCompletionModel *KateCompletionWidget::model() const
 {
     return m_presentationModel;
 }
 
 KateCompletionModel *KateCompletionWidget::model()
 {
     return m_presentationModel;
 }
 
 void KateCompletionWidget::rowsInserted(const QModelIndex &parent, int rowFrom, int rowEnd)
 {
     m_entryList->setAnimated(false);
 
     if (!parent.isValid()) {
         for (int i = rowFrom; i <= rowEnd; ++i) {
             m_entryList->expand(m_presentationModel->index(i, 0, parent));
         }
     }
 }
 
 KTextEditor::ViewPrivate *KateCompletionWidget::view() const
 {
     return static_cast<KTextEditor::ViewPrivate *>(const_cast<QObject *>(parent()));
 }
 
 void KateCompletionWidget::argumentHintsChanged(bool hasContent)
 {
     m_dontShowArgumentHints = !hasContent;
 
     if (m_dontShowArgumentHints) {
         m_argumentHintTree->hide();
     } else {
         updateArgumentHintGeometry();
     }
 }
 
 void KateCompletionWidget::startCompletion(KTextEditor::CodeCompletionModel::InvocationType invocationType,
                                            const QList<KTextEditor::CodeCompletionModel *> &models)
 {
     if (invocationType == KTextEditor::CodeCompletionModel::UserInvocation) {
         abortCompletion();
     }
     startCompletion(KTextEditor::Range(KTextEditor::Cursor(-1, -1), KTextEditor::Cursor(-1, -1)), models, invocationType);
 }
 
 void KateCompletionWidget::deleteCompletionRanges()
 {
     for (const CompletionRange &r : std::as_const(m_completionRanges)) {
         delete r.range;
     }
     m_completionRanges.clear();
 }
 
 void KateCompletionWidget::startCompletion(KTextEditor::Range word,
                                            KTextEditor::CodeCompletionModel *model,
                                            KTextEditor::CodeCompletionModel::InvocationType invocationType)
 {
     QList<KTextEditor::CodeCompletionModel *> models;
     if (model) {
         models << model;
     } else {
         models = m_sourceModels;
     }
     startCompletion(word, models, invocationType);
 }
 
 void KateCompletionWidget::startCompletion(KTextEditor::Range word,
                                            const QList<KTextEditor::CodeCompletionModel *> &modelsToStart,
                                            KTextEditor::CodeCompletionModel::InvocationType invocationType)
 {
     ////qCDebug(LOG_KTE)<<"============";
 
     m_isSuspended = false;
     m_inCompletionList = true; // Always start at the top of the completion-list
     m_needShow = true;
 
     if (m_completionRanges.isEmpty()) {
         m_noAutoHide = false; // Re-enable auto-hide on every clean restart of the completion
     }
 
     m_lastInvocationType = invocationType;
 
     disconnect(this->model(), &KateCompletionModel::layoutChanged, this, &KateCompletionWidget::modelContentChanged);
     disconnect(this->model(), &KateCompletionModel::modelReset, this, &KateCompletionWidget::modelContentChanged);
 
     m_dontShowArgumentHints = true;
 
     QList<KTextEditor::CodeCompletionModel *> models = (modelsToStart.isEmpty() ? m_sourceModels : modelsToStart);
 
     for (auto it = m_completionRanges.keyBegin(), end = m_completionRanges.keyEnd(); it != end; ++it) {
         KTextEditor::CodeCompletionModel *model = *it;
         if (!models.contains(model)) {
             models << model;
         }
     }
 
     if (!m_filterInstalled) {
         if (!QApplication::activeWindow()) {
             qCWarning(LOG_KTE) << "No active window to install event filter on!!";
             return;
         }
         // Enable the cc box to move when the editor window is moved
         QApplication::activeWindow()->installEventFilter(this);
         m_filterInstalled = true;
     }
 
     m_presentationModel->clearCompletionModels();
 
     if (invocationType == KTextEditor::CodeCompletionModel::UserInvocation) {
         deleteCompletionRanges();
     }
 
     for (KTextEditor::CodeCompletionModel *model : std::as_const(models)) {
         KTextEditor::Range range;
         if (word.isValid()) {
             range = word;
             // qCDebug(LOG_KTE)<<"word is used";
         } else {
             range = _completionRange(model, view(), view()->cursorPosition());
             // qCDebug(LOG_KTE)<<"completionRange has been called, cursor pos is"<<view()->cursorPosition();
         }
         // qCDebug(LOG_KTE)<<"range is"<<range;
         if (!range.isValid()) {
             if (m_completionRanges.contains(model)) {
                 KTextEditor::MovingRange *oldRange = m_completionRanges[model].range;
                 // qCDebug(LOG_KTE)<<"removing completion range 1";
                 m_completionRanges.remove(model);
                 delete oldRange;
             }
             models.removeAll(model);
             continue;
         }
         if (m_completionRanges.contains(model)) {
             if (*m_completionRanges[model].range == range) {
                 continue; // Leave it running as it is
             } else { // delete the range that was used previously
                 KTextEditor::MovingRange *oldRange = m_completionRanges[model].range;
                 // qCDebug(LOG_KTE)<<"removing completion range 2";
                 m_completionRanges.remove(model);
                 delete oldRange;
             }
         }
 
         connect(model, &KTextEditor::CodeCompletionModel::waitForReset, this, &KateCompletionWidget::waitForModelReset);
 
         // qCDebug(LOG_KTE)<<"Before completion invoke: range:"<<range;
         model->completionInvoked(view(), range, invocationType);
 
         disconnect(model, &KTextEditor::CodeCompletionModel::waitForReset, this, &KateCompletionWidget::waitForModelReset);
 
         m_completionRanges[model] =
             CompletionRange(view()->doc()->newMovingRange(range, KTextEditor::MovingRange::ExpandRight | KTextEditor::MovingRange::ExpandLeft));
 
         // In automatic invocation mode, hide the completion widget as soon as the position where the completion was started is passed to the left
         m_completionRanges[model].leftBoundary = view()->cursorPosition();
 
         // In manual invocation mode, bound the activity either the point from where completion was invoked, or to the start of the range
         if (invocationType != KTextEditor::CodeCompletionModel::AutomaticInvocation) {
             if (range.start() < m_completionRanges[model].leftBoundary) {
                 m_completionRanges[model].leftBoundary = range.start();
             }
         }
 
         if (!m_completionRanges[model].range->toRange().isValid()) {
             qCWarning(LOG_KTE) << "Could not construct valid smart-range from" << range << "instead got" << *m_completionRanges[model].range;
             abortCompletion();
             return;
         }
     }
 
     m_presentationModel->setCompletionModels(models);
 
     cursorPositionChanged();
 
     if (!m_completionRanges.isEmpty()) {
         connect(this->model(), &KateCompletionModel::layoutChanged, this, &KateCompletionWidget::modelContentChanged);
         connect(this->model(), &KateCompletionModel::modelReset, this, &KateCompletionWidget::modelContentChanged);
         // Now that all models have been notified, check whether the widget should be displayed instantly
         modelContentChanged();
     } else {
         abortCompletion();
     }
 }
 
 QString KateCompletionWidget::tailString() const
 {
     if (!KateViewConfig::global()->wordCompletionRemoveTail()) {
         return QString();
     }
 
     const int line = view()->cursorPosition().line();
     const int column = view()->cursorPosition().column();
 
     const QString text = view()->document()->line(line);
 
     static constexpr auto options = QRegularExpression::UseUnicodePropertiesOption | QRegularExpression::DontCaptureOption;
     static const QRegularExpression findWordEnd(QStringLiteral("^[_\\w]*\\b"), options);
 
     QRegularExpressionMatch match = findWordEnd.match(text.mid(column));
     if (match.hasMatch()) {
         return match.captured(0);
     }
     return QString();
 }
 
 void KateCompletionWidget::waitForModelReset()
 {
     KTextEditor::CodeCompletionModel *senderModel = qobject_cast<KTextEditor::CodeCompletionModel *>(sender());
     if (!senderModel) {
         qCWarning(LOG_KTE) << "waitForReset signal from bad model";
         return;
     }
     m_waitingForReset.insert(senderModel);
 }
 
 void KateCompletionWidget::updateAndShow()
 {
     // qCDebug(LOG_KTE)<<"*******************************************";
     if (!view()->hasFocus()) {
         qCDebug(LOG_KTE) << "view does not have focus";
         return;
     }
 
     setUpdatesEnabled(false);
 
     modelReset();
 
     m_argumentHintModel->buildRows();
     if (m_argumentHintModel->rowCount(QModelIndex()) != 0) {
         argumentHintsChanged(true);
     }
 
     // update height first
     updateHeight();
     // then resize columns afterwards because we need height information
     m_entryList->resizeColumns(true, true);
     // lastly update position as now we have height and width
     updatePosition(true);
 
     setUpdatesEnabled(true);
 
     if (m_argumentHintModel->rowCount(QModelIndex())) {
         updateArgumentHintGeometry();
         m_argumentHintTree->show();
     } else {
         m_argumentHintTree->hide();
     }
 
     if (m_presentationModel->rowCount()
         && (!m_presentationModel->shouldMatchHideCompletionList() || !hideAutomaticCompletionOnExactMatch
             || m_lastInvocationType != KTextEditor::CodeCompletionModel::AutomaticInvocation)) {
         show();
     } else {
         hide();
     }
 }
 
 void KateCompletionWidget::updatePosition(bool force)
 {
     if (!force && !isCompletionActive()) {
         return;
     }
 
     if (!completionRange()) {
         return;
     }
     QPoint cursorPosition = view()->cursorToCoordinate(completionRange()->start());
     if (cursorPosition == QPoint(-1, -1)) {
         // Start of completion range is now off-screen -> abort
         abortCompletion();
         return;
     }
 
     QPoint p = view()->mapToGlobal(cursorPosition);
     int x = p.x();
     int y = p.y();
 
     y += view()->renderer()->currentFontMetrics().height() + 2;
 
     if (!KWindowSystem::isPlatformWayland()) {
         const auto screenGeometry = view()->screen()->availableGeometry();
 
         if (x + width() > screenGeometry.right()) {
             x = screenGeometry.right() - width();
         }
 
         if (x < screenGeometry.left()) {
             x = screenGeometry.left();
         }
     }
 
     move(QPoint(x, y));
 
     //   //qCDebug(LOG_KTE) << "updated to" << geometry() << m_entryList->geometry();
 }
 
 void KateCompletionWidget::updateArgumentHintGeometry()
 {
     if (!m_dontShowArgumentHints) {
         // Now place the argument-hint widget
         QRect geom = m_argumentHintTree->geometry();
         geom.moveTo(pos());
         geom.setWidth(width());
         geom.moveBottom(pos().y() - view()->renderer()->currentFontMetrics().height() * 2);
         m_argumentHintTree->updateGeometry(geom);
     }
 }
 
 // Checks whether the given model has at least "rows" rows, also searching the second level of the tree.
 bool hasAtLeastNRows(int rows, QAbstractItemModel *model)
 {
     int count = 0;
     for (int row = 0; row < model->rowCount(); ++row) {
         ++count;
 
         QModelIndex index(model->index(row, 0));
         if (index.isValid()) {
             count += model->rowCount(index);
         }
 
         if (count > rows) {
             return true;
         }
     }
     return false;
 }
 
 void KateCompletionWidget::updateHeight()
 {
     QRect geom = geometry();
 
     constexpr int minBaseHeight = 10;
     constexpr int maxBaseHeight = 300;
 
     int baseHeight = 0;
     int calculatedCustomHeight = 0;
 
     if (hasAtLeastNRows(15, m_presentationModel)) {
         // If we know there is enough rows, always use max-height, we don't need to calculate size-hints
         baseHeight = maxBaseHeight;
     } else {
         // Calculate size-hints to determine the best height
         for (int row = 0; row < m_presentationModel->rowCount(); ++row) {
             baseHeight += treeView()->sizeHintForRow(row);
 
             QModelIndex index(m_presentationModel->index(row, 0));
             if (index.isValid()) {
                 for (int row2 = 0; row2 < m_presentationModel->rowCount(index); ++row2) {
                     int h = 0;
                     for (int a = 0; a < m_presentationModel->columnCount(index); ++a) {
                         const QModelIndex child = m_presentationModel->index(row2, a, index);
                         int localHeight = treeView()->sizeHintForIndex(child).height();
                         if (localHeight > h) {
                             h = localHeight;
                         }
                     }
                     baseHeight += h;
                     if (baseHeight > maxBaseHeight) {
                         break;
                     }
                 }
 
                 if (baseHeight > maxBaseHeight) {
                     break;
                 }
             }
         }
 
         calculatedCustomHeight = baseHeight;
     }
 
     baseHeight += 2 * frameWidth();
 
     if (m_entryList->horizontalScrollBar()->isVisible()) {
         baseHeight += m_entryList->horizontalScrollBar()->height();
     }
 
     if (baseHeight < minBaseHeight) {
         baseHeight = minBaseHeight;
     }
     if (baseHeight > maxBaseHeight) {
         baseHeight = maxBaseHeight;
         m_entryList->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
     } else {
         // Somewhere there seems to be a bug that makes QTreeView add a scroll-bar
         // even if the content exactly fits in. So forcefully disable the scroll-bar in that case
         m_entryList->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
     }
 
     int newExpandingAddedHeight = 0;
 
     if (baseHeight == maxBaseHeight) {
         // Eventually add some more height
         if (calculatedCustomHeight && calculatedCustomHeight > baseHeight && calculatedCustomHeight < maxBaseHeight) {
             newExpandingAddedHeight = calculatedCustomHeight - baseHeight;
         }
     }
 
     if (m_expandedAddedHeightBase != baseHeight && m_expandedAddedHeightBase - baseHeight > -2 && m_expandedAddedHeightBase - baseHeight < 2) {
         // Re-use the stored base-height if it only slightly differs from the current one.
         // Reason: Qt seems to apply slightly wrong sizes when the completion-widget is moved out of the screen at the bottom,
         //        which completely breaks this algorithm. Solution: re-use the old base-size if it only slightly differs from the computed one.
         baseHeight = m_expandedAddedHeightBase;
     }
 
     int screenBottom = view()->screen()->availableGeometry().bottom();
 
     // Limit the height to the bottom of the screen
     int bottomPosition = baseHeight + newExpandingAddedHeight + geometry().top();
 
     if (bottomPosition > screenBottom) {
         newExpandingAddedHeight -= bottomPosition - (screenBottom);
     }
 
     int finalHeight = baseHeight + newExpandingAddedHeight;
 
     if (finalHeight < 10) {
         m_entryList->resize(m_entryList->width(), height() - 2 * frameWidth());
         return;
     }
 
     m_expandedAddedHeightBase = geometry().height();
 
     geom.setHeight(finalHeight);
 
     // Work around a crash deep within the Qt 4.5 raster engine
     m_entryList->setScrollingEnabled(false);
 
     if (geometry() != geom) {
         setGeometry(geom);
     }
 
     QSize entryListSize = QSize(m_entryList->width(), finalHeight - 2 * frameWidth());
     if (m_entryList->size() != entryListSize) {
         m_entryList->resize(entryListSize);
     }
 
     m_entryList->setScrollingEnabled(true);
 }
 
 void KateCompletionWidget::cursorPositionChanged()
 {
     ////qCDebug(LOG_KTE);
     if (m_completionRanges.isEmpty()) {
         return;
     }
 
     QModelIndex oldCurrentSourceIndex;
     if (m_inCompletionList && m_entryList->currentIndex().isValid()) {
         oldCurrentSourceIndex = m_presentationModel->mapToSource(m_entryList->currentIndex());
     }
 
     QMap<KTextEditor::CodeCompletionModel *, QString> filterStringByModel;
 
     disconnect(this->model(), &KateCompletionModel::layoutChanged, this, &KateCompletionWidget::modelContentChanged);
     disconnect(this->model(), &KateCompletionModel::modelReset, this, &KateCompletionWidget::modelContentChanged);
 
     // Check the models and eventually abort some
     const QList<KTextEditor::CodeCompletionModel *> checkCompletionRanges = m_completionRanges.keys();
     for (auto model : checkCompletionRanges) {
         if (!m_completionRanges.contains(model)) {
             continue;
         }
 
         // qCDebug(LOG_KTE)<<"range before _updateRange:"<< *range;
 
         // this might invalidate the range, therefore re-check afterwards
         KTextEditor::Range rangeTE = m_completionRanges[model].range->toRange();
         KTextEditor::Range newRange = _updateRange(model, view(), rangeTE);
         if (!m_completionRanges.contains(model)) {
             continue;
         }
 
         // update value
         m_completionRanges[model].range->setRange(newRange);
 
         // qCDebug(LOG_KTE)<<"range after _updateRange:"<< *range;
         QString currentCompletion = _filterString(model, view(), *m_completionRanges[model].range, view()->cursorPosition());
         if (!m_completionRanges.contains(model)) {
             continue;
         }
 
         // qCDebug(LOG_KTE)<<"after _filterString, currentCompletion="<< currentCompletion;
         bool abort = _shouldAbortCompletion(model, view(), *m_completionRanges[model].range, currentCompletion);
         if (!m_completionRanges.contains(model)) {
             continue;
         }
 
         // qCDebug(LOG_KTE)<<"after _shouldAbortCompletion:abort="<<abort;
         if (view()->cursorPosition() < m_completionRanges[model].leftBoundary) {
             // qCDebug(LOG_KTE) << "aborting because of boundary:
             // cursor:"<<view()->cursorPosition()<<"completion_Range_left_boundary:"<<m_completionRanges[*it].leftBoundary;
             abort = true;
         }
 
         if (!m_completionRanges.contains(model)) {
             continue;
         }
 
         if (abort) {
             if (m_completionRanges.count() == 1) {
                 // last model - abort whole completion
                 abortCompletion();
                 return;
             } else {
                 {
                     delete m_completionRanges[model].range;
                     // qCDebug(LOG_KTE)<<"removing completion range 3";
                     m_completionRanges.remove(model);
                 }
 
                 _aborted(model, view());
                 m_presentationModel->removeCompletionModel(model);
             }
         } else {
             filterStringByModel[model] = currentCompletion;
         }
     }
 
     connect(this->model(), &KateCompletionModel::layoutChanged, this, &KateCompletionWidget::modelContentChanged);
     connect(this->model(), &KateCompletionModel::modelReset, this, &KateCompletionWidget::modelContentChanged);
 
     m_presentationModel->setCurrentCompletion(filterStringByModel);
 
     if (oldCurrentSourceIndex.isValid()) {
         QModelIndex idx = m_presentationModel->mapFromSource(oldCurrentSourceIndex);
         // We only want to reselect this if it is still the first item
         if (idx.isValid() && idx.row() == 0) {
             // qCDebug(LOG_KTE) << "setting" << idx;
             m_entryList->setCurrentIndex(idx.sibling(idx.row(), 0));
             //       m_entryList->nextCompletion();
             //       m_entryList->previousCompletion();
         } else {
             // qCDebug(LOG_KTE) << "failed to map from source";
         }
     }
 
     m_entryList->scheduleUpdate();
 }
 
 bool KateCompletionWidget::isCompletionActive() const
 {
     return !m_completionRanges.isEmpty() && ((!isHidden() && isVisible()) || (!m_argumentHintTree->isHidden() && m_argumentHintTree->isVisible()));
 }
 
 void KateCompletionWidget::abortCompletion()
 {
     // qCDebug(LOG_KTE) ;
 
     m_isSuspended = false;
 
     if (!docTip()->isHidden()) {
         docTip()->hide();
     }
 
     bool wasActive = isCompletionActive();
 
     if (hasFocus()) {
         view()->activateWindow();
         view()->setFocus();
     }
 
     clear();
 
     if (!isHidden()) {
         hide();
     }
 
     if (!m_argumentHintTree->isHidden()) {
         m_argumentHintTree->hide();
     }
 
     if (wasActive) {
         view()->sendCompletionAborted();
     }
 }
 
 void KateCompletionWidget::clear()
 {
     m_presentationModel->clearCompletionModels();
     m_argumentHintTree->clearCompletion();
     m_argumentHintModel->clear();
     m_docTip->clearWidgets();
 
     const auto keys = m_completionRanges.keys();
     for (KTextEditor::CodeCompletionModel *model : keys) {
         _aborted(model, view());
     }
 
     deleteCompletionRanges();
 }
 
 bool KateCompletionWidget::navigateAccept()
 {
     m_hadCompletionNavigation = true;
 
     if (currentEmbeddedWidget()) {
         QMetaObject::invokeMethod(currentEmbeddedWidget(), "embeddedWidgetAccept");
     }
 
     QModelIndex index = selectedIndex();
     if (index.isValid()) {
         index.data(KTextEditor::CodeCompletionModel::AccessibilityAccept);
         return true;
     }
     return false;
 }
 
 bool KateCompletionWidget::execute()
 {
     // qCDebug(LOG_KTE) ;
 
     if (!isCompletionActive()) {
         return false;
     }
 
     QModelIndex index = selectedIndex();
 
     if (!index.isValid()) {
         abortCompletion();
         return false;
     }
 
     QModelIndex toExecute;
 
     if (index.model() == m_presentationModel) {
         toExecute = m_presentationModel->mapToSource(index);
     } else {
         toExecute = m_argumentHintModel->mapToSource(index);
     }
 
     if (!toExecute.isValid()) {
         qCWarning(LOG_KTE) << "Could not map index" << m_entryList->selectionModel()->currentIndex() << "to source index.";
         abortCompletion();
         return false;
     }
 
     // encapsulate all editing as being from the code completion, and undo-able in one step.
     view()->doc()->editStart();
     m_completionEditRunning = true;
 
     // create scoped pointer, to ensure deletion of cursor
     std::unique_ptr<KTextEditor::MovingCursor> oldPos(view()->doc()->newMovingCursor(view()->cursorPosition(), KTextEditor::MovingCursor::StayOnInsert));
 
     KTextEditor::CodeCompletionModel *model = static_cast<KTextEditor::CodeCompletionModel *>(const_cast<QAbstractItemModel *>(toExecute.model()));
     Q_ASSERT(model);
 
     Q_ASSERT(m_completionRanges.contains(model));
 
     KTextEditor::Cursor start = m_completionRanges[model].range->start();
 
     // Save the "tail"
     QString tailStr = tailString();
     std::unique_ptr<KTextEditor::MovingCursor> afterTailMCursor(view()->doc()->newMovingCursor(view()->cursorPosition()));
     afterTailMCursor->move(tailStr.size());
 
     // Handle completion for multi cursors
     QSharedPointer<QMetaObject::Connection> connection(new QMetaObject::Connection());
     auto autoCompleteMulticursors = [connection, this](KTextEditor::Document *document, const KTextEditor::Range &range) {
         disconnect(*connection);
         const QString text = document->text(range);
         if (text.isEmpty()) {
             return;
         }
         const auto &multicursors = view()->secondaryCursors();
         for (const auto &c : multicursors) {
             const KTextEditor::Cursor pos = c.cursor();
             KTextEditor::Range wordToReplace = view()->doc()->wordRangeAt(pos);
             wordToReplace.setEnd(pos); // limit the word to the current cursor position
             view()->doc()->replaceText(wordToReplace, text);
         }
     };
     *connection = connect(view()->doc(), &KTextEditor::DocumentPrivate::textInsertedRange, this, autoCompleteMulticursors);
 
     model->executeCompletionItem(view(), *m_completionRanges[model].range, toExecute);
     // NOTE the CompletionRange is now removed from m_completionRanges
 
     // There are situations where keeping the tail is beneficial, but with the "Remove tail on complete" option is enabled,
     // the tail is removed. For these situations we convert the completion into two edits:
     // 1) Insert the completion
     // 2) Remove the tail
     //
     // When we encounter one of these situations we can just do _one_ undo to have the tail back.
     //
     // Technically the tail is already removed by "executeCompletionItem()", so before this call we save the possible tail
     // and re-add the tail before we end the first grouped "edit". Then immediately after that we add a second edit that
     // removes the tail again.
     // NOTE: The ViInputMode makes assumptions about the edit actions in a completion and breaks if we insert extra
     // edits here, so we just disable this feature for ViInputMode
     if (!tailStr.isEmpty() && view()->viewInputMode() != KTextEditor::View::ViInputMode) {
         KTextEditor::Cursor currentPos = view()->cursorPosition();
         KTextEditor::Cursor afterPos = afterTailMCursor->toCursor();
         // Re add the tail for a possible undo to bring the tail back
         view()->document()->insertText(afterPos, tailStr);
         view()->setCursorPosition(currentPos);
         view()->doc()->editEnd();
 
         // Now remove the tail in a separate edit
         KTextEditor::Cursor endPos = afterPos;
         endPos.setColumn(afterPos.column() + tailStr.size());
         view()->doc()->editStart();
         view()->document()->removeText(KTextEditor::Range(afterPos, endPos));
     }
 
     view()->doc()->editEnd();
     m_completionEditRunning = false;
 
     abortCompletion();
 
     view()->sendCompletionExecuted(start, model, toExecute);
 
     KTextEditor::Cursor newPos = view()->cursorPosition();
 
     if (newPos > *oldPos) {
         m_automaticInvocationAt = newPos;
         m_automaticInvocationLine = view()->doc()->text(KTextEditor::Range(*oldPos, newPos));
         // qCDebug(LOG_KTE) << "executed, starting automatic invocation with line" << m_automaticInvocationLine;
         m_lastInsertionByUser = false;
         m_automaticInvocationTimer->start();
     }
 
     return true;
 }
 
 void KateCompletionWidget::resizeEvent(QResizeEvent *event)
 {
     QFrame::resizeEvent(event);
 
     // keep argument hint geometry in sync
     if (m_argumentHintTree->isVisible()) {
         updateArgumentHintGeometry();
     }
 }
 
 void KateCompletionWidget::moveEvent(QMoveEvent *event)
 {
     QFrame::moveEvent(event);
 
     // keep argument hint geometry in sync
     if (m_argumentHintTree->isVisible()) {
         updateArgumentHintGeometry();
     }
 }
 
 void KateCompletionWidget::showEvent(QShowEvent *event)
 {
     m_isSuspended = false;
 
     QFrame::showEvent(event);
 
     if (!m_dontShowArgumentHints && m_argumentHintModel->rowCount(QModelIndex()) != 0) {
         m_argumentHintTree->show();
     }
 }
 
 KTextEditor::MovingRange *KateCompletionWidget::completionRange(KTextEditor::CodeCompletionModel *model) const
 {
     if (!model) {
         if (m_completionRanges.isEmpty()) {
             return nullptr;
         }
 
         KTextEditor::MovingRange *ret = m_completionRanges.begin()->range;
 
         for (const CompletionRange &range : m_completionRanges) {
             if (range.range->start() > ret->start()) {
                 ret = range.range;
             }
         }
         return ret;
     }
     if (m_completionRanges.contains(model)) {
         return m_completionRanges[model].range;
     } else {
         return nullptr;
     }
 }
 
 QMap<KTextEditor::CodeCompletionModel *, KateCompletionWidget::CompletionRange> KateCompletionWidget::completionRanges() const
 {
     return m_completionRanges;
 }
 
 void KateCompletionWidget::modelReset()
 {
     setUpdatesEnabled(false);
     m_entryList->setAnimated(false);
     m_argumentHintTree->setAnimated(false);
     /// We need to do this by hand, because QTreeView::expandAll is very inefficient.
     /// It creates a QPersistentModelIndex for every single item in the whole tree..
     for (int row = 0; row < m_argumentHintModel->rowCount(QModelIndex()); ++row) {
         QModelIndex index(m_argumentHintModel->index(row, 0, QModelIndex()));
         if (!m_argumentHintTree->isExpanded(index)) {
             m_argumentHintTree->expand(index);
         }
     }
 
     for (int row = 0; row < m_entryList->model()->rowCount(QModelIndex()); ++row) {
         QModelIndex index(m_entryList->model()->index(row, 0, QModelIndex()));
         if (!m_entryList->isExpanded(index)) {
             m_entryList->expand(index);
         }
     }
     setUpdatesEnabled(true);
 }
 
 KateCompletionTree *KateCompletionWidget::treeView() const
 {
     return m_entryList;
 }
 
 QModelIndex KateCompletionWidget::selectedIndex() const
 {
     if (!isCompletionActive()) {
         return QModelIndex();
     }
 
     if (m_inCompletionList) {
         return m_entryList->currentIndex();
     } else {
         return m_argumentHintTree->currentIndex();
     }
 }
 
 bool KateCompletionWidget::navigateLeft()
 {
     m_hadCompletionNavigation = true;
     if (currentEmbeddedWidget()) {
         QMetaObject::invokeMethod(currentEmbeddedWidget(), "embeddedWidgetLeft");
     }
 
     QModelIndex index = selectedIndex();
 
     if (index.isValid()) {
         index.data(KTextEditor::CodeCompletionModel::AccessibilityPrevious);
 
         return true;
     }
     return false;
 }
 
 bool KateCompletionWidget::navigateRight()
 {
     m_hadCompletionNavigation = true;
     if (currentEmbeddedWidget()) { ///@todo post 4.2: Make these slots public interface, or create an interface using virtual functions
         QMetaObject::invokeMethod(currentEmbeddedWidget(), "embeddedWidgetRight");
     }
 
     QModelIndex index = selectedIndex();
 
     if (index.isValid()) {
         index.data(KTextEditor::CodeCompletionModel::AccessibilityNext);
         return true;
     }
 
     return false;
 }
 
 bool KateCompletionWidget::navigateBack()
 {
     m_hadCompletionNavigation = true;
     if (currentEmbeddedWidget()) {
         QMetaObject::invokeMethod(currentEmbeddedWidget(), "embeddedWidgetBack");
     }
     return false;
 }
 
 void KateCompletionWidget::toggleDocumentation()
 {
     // user has configured the doc to be always visible
     // whenever its available.
     if (view()->config()->showDocWithCompletion()) {
         return;
     }
 
     if (m_docTip->isVisible()) {
         m_hadCompletionNavigation = false;
         QTimer::singleShot(400, this, [this] {
             // if 400ms later this is not false, it means
             // that the user navigated inside the active
             // widget in doc tip
             if (!m_hadCompletionNavigation) {
                 m_docTip->hide();
             }
         });
     } else {
         showDocTip(m_entryList->currentIndex());
     }
 }
 
 void KateCompletionWidget::showDocTip(const QModelIndex &idx)
 {
     auto data = idx.data(KTextEditor::CodeCompletionModel::ExpandingWidget);
     // No data => hide
     if (!data.isValid()) {
         m_docTip->hide();
         return;
     } else if (data.canConvert<QWidget *>()) {
         m_docTip->setWidget(data.value<QWidget *>());
     } else if (data.canConvert<QString>()) {
         QString text = data.toString();
         if (text.isEmpty()) {
             m_docTip->hide();
             return;
         }
         m_docTip->setText(text);
     }
 
     m_docTip->updatePosition();
     m_docTip->show();
 }
 
 bool KateCompletionWidget::eventFilter(QObject *watched, QEvent *event)
 {
     bool ret = QFrame::eventFilter(watched, event);
 
     if (watched != this) {
         if (event->type() == QEvent::Move) {
             updatePosition();
         }
     }
 
     return ret;
 }
 
 bool KateCompletionWidget::navigateDown()
 {
     m_hadCompletionNavigation = true;
     if (currentEmbeddedWidget()) {
         QMetaObject::invokeMethod(currentEmbeddedWidget(), "embeddedWidgetDown");
     }
     return false;
 }
 
 bool KateCompletionWidget::navigateUp()
 {
     m_hadCompletionNavigation = true;
     if (currentEmbeddedWidget()) {
         QMetaObject::invokeMethod(currentEmbeddedWidget(), "embeddedWidgetUp");
     }
     return false;
 }
 
 QWidget *KateCompletionWidget::currentEmbeddedWidget()
 {
     return m_docTip->currentWidget();
 }
 
 void KateCompletionWidget::cursorDown()
 {
     if (m_inCompletionList) {
         m_entryList->nextCompletion();
     } else {
         if (!m_argumentHintTree->nextCompletion()) {
             switchList();
         }
     }
 }
 
 void KateCompletionWidget::cursorUp()
 {
     if (m_inCompletionList) {
         if (!m_entryList->previousCompletion()) {
             switchList();
         }
     } else {
         m_argumentHintTree->previousCompletion();
     }
 }
 
 void KateCompletionWidget::pageDown()
 {
     if (m_inCompletionList) {
         m_entryList->pageDown();
     } else {
         if (!m_argumentHintTree->pageDown()) {
             switchList();
         }
     }
 }
 
 void KateCompletionWidget::pageUp()
 {
     if (m_inCompletionList) {
         if (!m_entryList->pageUp()) {
             switchList();
         }
     } else {
         m_argumentHintTree->pageUp();
     }
 }
 
 void KateCompletionWidget::top()
 {
     if (m_inCompletionList) {
         m_entryList->top();
     } else {
         m_argumentHintTree->top();
     }
 }
 
 void KateCompletionWidget::bottom()
 {
     if (m_inCompletionList) {
         m_entryList->bottom();
     } else {
         m_argumentHintTree->bottom();
     }
 }
 
 void KateCompletionWidget::switchList()
 {
     if (m_inCompletionList) {
         if (m_argumentHintModel->rowCount(QModelIndex()) != 0) {
             m_entryList->setCurrentIndex(QModelIndex());
             m_argumentHintTree->setCurrentIndex(m_argumentHintModel->index(m_argumentHintModel->rowCount(QModelIndex()) - 1, 0));
             m_inCompletionList = false;
         }
     } else {
         if (m_presentationModel->rowCount(QModelIndex()) != 0) {
             m_argumentHintTree->setCurrentIndex(QModelIndex());
             m_entryList->setCurrentIndex(m_presentationModel->index(0, 0));
             if (model()->hasGroups()) { // If we have groups we have to move on, because the first item is a label
                 m_entryList->nextCompletion();
             }
             m_inCompletionList = true;
         }
     }
 }
 
 void KateCompletionWidget::completionModelReset()
 {
     KTextEditor::CodeCompletionModel *model = qobject_cast<KTextEditor::CodeCompletionModel *>(sender());
     if (!model) {
         qCWarning(LOG_KTE) << "bad sender";
         return;
     }
 
     if (!m_waitingForReset.contains(model)) {
         return;
     }
 
     m_waitingForReset.remove(model);
 
     if (m_waitingForReset.isEmpty()) {
         if (!isCompletionActive()) {
             // qCDebug(LOG_KTE) << "all completion-models we waited for are ready. Last one: " << model->objectName();
             // Eventually show the completion-list if this was the last model we were waiting for
             // Use a queued connection once again to make sure that KateCompletionModel is notified before we are
             QMetaObject::invokeMethod(this, "modelContentChanged", Qt::QueuedConnection);
         }
     }
 }
 
 void KateCompletionWidget::modelDestroyed(QObject *model)
 {
     m_sourceModels.removeAll(static_cast<KTextEditor::CodeCompletionModel *>(model));
     abortCompletion();
 }
 
 void KateCompletionWidget::registerCompletionModel(KTextEditor::CodeCompletionModel *model)
 {
     if (m_sourceModels.contains(model)) {
         return;
     }
 
     connect(model, &KTextEditor::CodeCompletionModel::destroyed, this, &KateCompletionWidget::modelDestroyed);
     // This connection must not be queued
     connect(model, &KTextEditor::CodeCompletionModel::modelReset, this, &KateCompletionWidget::completionModelReset);
 
     m_sourceModels.append(model);
 
     if (isCompletionActive()) {
         m_presentationModel->addCompletionModel(model);
     }
 }
 
 void KateCompletionWidget::unregisterCompletionModel(KTextEditor::CodeCompletionModel *model)
 {
     disconnect(model, &KTextEditor::CodeCompletionModel::destroyed, this, &KateCompletionWidget::modelDestroyed);
     disconnect(model, &KTextEditor::CodeCompletionModel::modelReset, this, &KateCompletionWidget::completionModelReset);
 
     m_sourceModels.removeAll(model);
     abortCompletion();
 }
 
 bool KateCompletionWidget::isCompletionModelRegistered(KTextEditor::CodeCompletionModel *model) const
 {
     return m_sourceModels.contains(model);
 }
 
 QList<KTextEditor::CodeCompletionModel *> KateCompletionWidget::codeCompletionModels() const
 {
     return m_sourceModels;
 }
 
 int KateCompletionWidget::automaticInvocationDelay() const
 {
     return m_automaticInvocationDelay;
 }
 
 void KateCompletionWidget::setIgnoreBufferSignals(bool ignore) const
 {
     if (ignore) {
         disconnect(&view()->doc()->buffer(), &KateBuffer::lineWrapped, this, &KateCompletionWidget::wrapLine);
         disconnect(&view()->doc()->buffer(), &KateBuffer::lineUnwrapped, this, &KateCompletionWidget::unwrapLine);
         disconnect(&view()->doc()->buffer(), &KateBuffer::textInserted, this, &KateCompletionWidget::insertText);
         disconnect(&view()->doc()->buffer(), &KateBuffer::textRemoved, this, &KateCompletionWidget::removeText);
     } else {
         connect(&view()->doc()->buffer(), &KateBuffer::lineWrapped, this, &KateCompletionWidget::wrapLine);
         connect(&view()->doc()->buffer(), &KateBuffer::lineUnwrapped, this, &KateCompletionWidget::unwrapLine);
         connect(&view()->doc()->buffer(), &KateBuffer::textInserted, this, &KateCompletionWidget::insertText);
         connect(&view()->doc()->buffer(), &KateBuffer::textRemoved, this, &KateCompletionWidget::removeText);
     }
 }
 
 void KateCompletionWidget::setAutomaticInvocationDelay(int delay)
 {
     m_automaticInvocationDelay = delay;
 }
 
 void KateCompletionWidget::wrapLine(const KTextEditor::Cursor &)
 {
     m_lastInsertionByUser = !m_completionEditRunning;
 
     // wrap line, be done
     m_automaticInvocationLine.clear();
     m_automaticInvocationTimer->stop();
 }
 
 void KateCompletionWidget::unwrapLine(int)
 {
     m_lastInsertionByUser = !m_completionEditRunning;
 
     // just removal
     m_automaticInvocationLine.clear();
     m_automaticInvocationTimer->stop();
 }
 
 void KateCompletionWidget::insertText(const KTextEditor::Cursor &position, const QString &text)
 {
     m_lastInsertionByUser = !m_completionEditRunning;
 
     // no invoke?
     if (!view()->isAutomaticInvocationEnabled()) {
         m_automaticInvocationLine.clear();
         m_automaticInvocationTimer->stop();
         return;
     }
 
     if (m_automaticInvocationAt != position) {
         m_automaticInvocationLine.clear();
         m_lastInsertionByUser = !m_completionEditRunning;
     }
 
     m_automaticInvocationLine += text;
     m_automaticInvocationAt = position;
     m_automaticInvocationAt.setColumn(position.column() + text.length());
 
     if (m_automaticInvocationLine.isEmpty()) {
         m_automaticInvocationTimer->stop();
         return;
     }
 
     m_automaticInvocationTimer->start(m_automaticInvocationDelay);
 }
 
 void KateCompletionWidget::removeText(const KTextEditor::Range &)
 {
     m_lastInsertionByUser = !m_completionEditRunning;
 
     // just removal
     m_automaticInvocationLine.clear();
     m_automaticInvocationTimer->stop();
 }
 
 void KateCompletionWidget::automaticInvocation()
 {
     // qCDebug(LOG_KTE)<<"m_automaticInvocationAt:"<<m_automaticInvocationAt;
     // qCDebug(LOG_KTE)<<view()->cursorPosition();
     if (m_automaticInvocationAt != view()->cursorPosition()) {
         return;
     }
 
     bool start = false;
     QList<KTextEditor::CodeCompletionModel *> models;
 
     // qCDebug(LOG_KTE)<<"checking models";
     for (KTextEditor::CodeCompletionModel *model : std::as_const(m_sourceModels)) {
         // qCDebug(LOG_KTE)<<"m_completionRanges contains model?:"<<m_completionRanges.contains(model);
         if (m_completionRanges.contains(model)) {
             continue;
         }
 
         start = _shouldStartCompletion(model, view(), m_automaticInvocationLine, m_lastInsertionByUser, view()->cursorPosition());
         // qCDebug(LOG_KTE)<<"start="<<start;
         if (start) {
             models << model;
         }
     }
     // qCDebug(LOG_KTE)<<"models found:"<<!models.isEmpty();
     if (!models.isEmpty()) {
         // Start automatic code completion
         startCompletion(KTextEditor::CodeCompletionModel::AutomaticInvocation, models);
     }
 }
 
 void KateCompletionWidget::userInvokedCompletion()
 {
     startCompletion(KTextEditor::CodeCompletionModel::UserInvocation);
 }
 
 void KateCompletionWidget::tabCompletion(Direction direction)
 {
     if (!m_inCompletionList) {
         return;
     }
 
     m_noAutoHide = true;
 
     // Not using cursorDown/Up() as we don't want to go into the argument-hint list
     if (direction == Down) {
         const bool res = m_entryList->nextCompletion();
         if (!res) {
             m_entryList->top();
         }
     } else { // direction == Up
         const bool res = m_entryList->previousCompletion();
         if (!res) {
             m_entryList->bottom();
         }
     }
 }
 
 #include "moc_katecompletionwidget.cpp"