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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "rewritertransaction.h"
#include <abstractview.h>
#include <rewritingexception.h>
#include <rewriterview.h>
#include <utils/qtcassert.h>
#ifndef QMLDESIGNER_TEST
#include <designdocument.h>
#include <qmldesignerplugin.h>
#endif
#include <QDebug>
namespace QmlDesigner {
QList<QByteArray> RewriterTransaction::m_identifierList;
bool RewriterTransaction::m_activeIdentifier = qEnvironmentVariableIsSet("QML_DESIGNER_TRACE_REWRITER_TRANSACTION");
RewriterTransaction::RewriterTransaction() : m_valid(false)
{
}
RewriterTransaction::RewriterTransaction(AbstractView *_view, const QByteArray &identifier)
: m_view(_view),
m_identifier(identifier),
m_valid(true)
{
Q_ASSERT(view());
static int identifierNumber = 0;
m_identifierNumber = identifierNumber++;
if (m_activeIdentifier) {
qDebug() << "Begin RewriterTransaction:" << m_identifier << m_identifierNumber;
m_identifierList.append(m_identifier + QByteArrayLiteral("-") + QByteArray::number(m_identifierNumber));
}
view()->emitRewriterBeginTransaction();
}
RewriterTransaction::~RewriterTransaction()
{
try {
commit();
} catch (const RewritingException &e) {
QTC_ASSERT(false, ;);
e.showException();
}
}
bool RewriterTransaction::isValid() const
{
return m_valid;
}
void RewriterTransaction::ignoreSemanticChecks()
{
m_ignoreSemanticChecks = true;
}
void RewriterTransaction::commit()
{
if (m_valid) {
m_valid = false;
RewriterView *rewriterView = view()->rewriterView();
QTC_ASSERT(rewriterView, qWarning() << Q_FUNC_INFO << "No rewriter attached");
bool oldSemanticChecks = false;
if (rewriterView) {
oldSemanticChecks = rewriterView->checkSemanticErrors();
if (m_ignoreSemanticChecks)
rewriterView->setCheckSemanticErrors(false);
}
view()->emitRewriterEndTransaction();
if (rewriterView)
view()->rewriterView()->setCheckSemanticErrors(oldSemanticChecks);
if (m_activeIdentifier) {
qDebug() << "Commit RewriterTransaction:" << m_identifier << m_identifierNumber;
[[maybe_unused]] bool success = m_identifierList.removeOne(
m_identifier + QByteArrayLiteral("-") + QByteArray::number(m_identifierNumber));
Q_ASSERT(success);
}
}
}
void RewriterTransaction::rollback()
{
// TODO: should be implemented with a function in the rewriter
if (m_valid) {
m_valid = false;
view()->emitRewriterEndTransaction();
#ifndef QMLDESIGNER_TEST
QmlDesignerPlugin::instance()->currentDesignDocument()->undo();
#endif
if (m_activeIdentifier) {
qDebug() << "Rollback RewriterTransaction:" << m_identifier << m_identifierNumber;
m_identifierList.removeOne(m_identifier + QByteArrayLiteral("-") + QByteArray::number(m_identifierNumber));
}
}
}
AbstractView *RewriterTransaction::view()
{
return m_view.data();
}
RewriterTransaction::RewriterTransaction(const RewriterTransaction &other)
: m_valid(false)
{
if (&other != this) {
m_valid = other.m_valid;
m_view = other.m_view;
m_identifier = other.m_identifier;
m_identifierNumber = other.m_identifierNumber;
other.m_valid = false;
}
}
RewriterTransaction& RewriterTransaction::operator=(const RewriterTransaction &other)
{
if (!m_valid && (&other != this)) {
m_valid = other.m_valid;
m_view = other.m_view;
m_identifier = other.m_identifier;
m_identifierNumber = other.m_identifierNumber;
other.m_valid = false;
}
return *this;
}
} //QmlDesigner
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