File: replacementvariable.cpp

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/*
    SPDX-FileCopyrightText: 2013 Atanas Gospodinov <atanas.r.gospodinov@gmail.com>

    SPDX-License-Identifier: GPL-2.0-or-later
*/

#include "replacementvariable.h"

#include <KTextEditor/View>
#include <KTextEditor/Document>
#include <KTextEditor/CodeCompletionModel>
#include <language/duchain/ducontext.h>
#include <language/codecompletion/codecompletionmodel.h>

using namespace KDevelop;
using namespace KTextEditor;

namespace Python {

ReplacementVariableItem::ReplacementVariableItem(const ReplacementVariable &variable, const QString &description, bool hasEditableFields, Range position)
    : m_variable(variable),
      m_description(description),
      m_hasEditableFields(hasEditableFields),
      m_position(position)
{
}

void ReplacementVariableItem::execute(View* view, const Range &word)
{
    auto document = view->document();
    if ( ! m_position.isValid() ) {
        m_position = word;
    }

    Cursor removeUntil = m_position.start();
    Range removeRange(m_position.start(), removeUntil);
    if ( document->text(m_position).lastIndexOf(QLatin1Char('{')) != -1 ) {
        // remove the whole existing expression
        removeRange.setEnd({removeRange.end().line(), m_position.end().column()});
    }
    else {
        // remove nothing unless there is an opening { already, in that case remove that
        removeRange= {m_position.end(), m_position.end()};

        Range previousCharacter(word.start() - Cursor(0, 1), word.start());
        if ( document->text(previousCharacter) == QStringLiteral("{") ) {
            removeRange.setStart(removeRange.start() - Cursor(0, 1));
        }
    }

    if ( m_hasEditableFields ) {
        document->removeText(removeRange);
        view->insertTemplate(removeRange.start(), m_variable.toString());
    }
    else {
        document->removeText(removeRange);
        document->insertText(removeRange.start(), m_variable.toString());
    }
}

QVariant ReplacementVariableItem::data(const QModelIndex &index, int role, const KDevelop::CodeCompletionModel *model) const
{
    switch (role) {
    case KDevelop::CodeCompletionModel::IsExpandable:
        return QVariant(false);
    case Qt::DisplayRole:
        if (index.column() == KTextEditor::CodeCompletionModel::Name) {
            return QVariant(m_variable.toString());
        }
        else if ( index.column() == KTextEditor::CodeCompletionModel::Prefix ) {
            return QVariant(m_description);
        }
        else {
            return QVariant(QString());
        }
        break;
    case KTextEditor::CodeCompletionModel::ItemSelected:
        return QVariant(QString());
    case KTextEditor::CodeCompletionModel::InheritanceDepth:
        return QVariant(0);
    case KDevelop::CodeCompletionModel::BestMatchesCount:
        return 5;
    case KDevelop::CodeCompletionModel::MatchQuality:
        return 0;
    default:
        //pass
        break;
    }

    return CompletionTreeItem::data(index, role, model);
}

}