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/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "qmlprofilerdetailsrewriter.h"
#include <qmljs/parser/qmljsast_p.h>
#include <qmljs/qmljsmodelmanagerinterface.h>
#include <qmljstools/qmljsmodelmanager.h>
#include <utils/qtcassert.h>
namespace QmlProfiler {
namespace Internal {
struct PendingEvent {
QmlDebug::QmlEventLocation location;
QString localFile;
int eventType;
};
class PropertyVisitor: protected QmlJS::AST::Visitor
{
QmlJS::AST::Node * _lastValidNode;
unsigned _line;
unsigned _col;
public:
QmlJS::AST::Node * operator()(QmlJS::AST::Node *node, unsigned line, unsigned col)
{
_line = line;
_col = col;
_lastValidNode = 0;
accept(node);
return _lastValidNode;
}
protected:
using QmlJS::AST::Visitor::visit;
void accept(QmlJS::AST::Node *node)
{
if (node)
node->accept(this);
}
bool containsLocation(QmlJS::AST::SourceLocation start, QmlJS::AST::SourceLocation end)
{
return (_line > start.startLine || (_line == start.startLine && _col >= start.startColumn)) &&
(_line < end.startLine || (_line == end.startLine && _col <= end.startColumn));
}
virtual bool preVisit(QmlJS::AST::Node *node)
{
if (QmlJS::AST::cast<QmlJS::AST::UiQualifiedId *>(node)) {
return false;
}
return containsLocation(node->firstSourceLocation(), node->lastSourceLocation());
}
virtual bool visit(QmlJS::AST::UiScriptBinding *ast)
{
_lastValidNode = ast;
return true;
}
virtual bool visit(QmlJS::AST::UiPublicMember *ast)
{
_lastValidNode = ast;
return true;
}
};
/////////////////////////////////////////////////////////////////////////////////
class QmlProfilerDetailsRewriter::QmlProfilerDetailsRewriterPrivate
{
public:
QmlProfilerDetailsRewriterPrivate(QmlProfilerDetailsRewriter *qq,
Utils::FileInProjectFinder *fileFinder)
: m_projectFinder(fileFinder), q(qq) {}
~QmlProfilerDetailsRewriterPrivate() {}
QList <PendingEvent> m_pendingEvents;
QStringList m_pendingDocs;
Utils::FileInProjectFinder *m_projectFinder;
QmlProfilerDetailsRewriter *q;
};
QmlProfilerDetailsRewriter::QmlProfilerDetailsRewriter(
QObject *parent, Utils::FileInProjectFinder *fileFinder)
: QObject(parent), d(new QmlProfilerDetailsRewriterPrivate(this, fileFinder))
{ }
QmlProfilerDetailsRewriter::~QmlProfilerDetailsRewriter()
{
delete d;
}
void QmlProfilerDetailsRewriter::requestDetailsForLocation(int type,
const QmlDebug::QmlEventLocation &location)
{
const QString localFile = d->m_projectFinder->findFile(location.filename);
QFileInfo fileInfo(localFile);
if (!fileInfo.exists() || !fileInfo.isReadable())
return;
if (QmlJSTools::languageOfFile(localFile) != QmlJS::Document::QmlLanguage)
return;
PendingEvent ev = {location, localFile, type};
d->m_pendingEvents << ev;
if (!d->m_pendingDocs.contains(localFile)) {
if (d->m_pendingDocs.isEmpty())
connect(QmlJS::ModelManagerInterface::instance(),
SIGNAL(documentUpdated(QmlJS::Document::Ptr)),
this,
SLOT(documentReady(QmlJS::Document::Ptr)));
d->m_pendingDocs << localFile;
}
}
void QmlProfilerDetailsRewriter::reloadDocuments()
{
if (!d->m_pendingDocs.isEmpty())
QmlJS::ModelManagerInterface::instance()->updateSourceFiles(d->m_pendingDocs, false);
else
emit eventDetailsChanged();
}
void QmlProfilerDetailsRewriter::rewriteDetailsForLocation(QTextStream &textDoc,
QmlJS::Document::Ptr doc, int type, const QmlDebug::QmlEventLocation &location)
{
PropertyVisitor propertyVisitor;
QmlJS::AST::Node *node = propertyVisitor(doc->ast(), location.line, location.column);
if (!node)
return;
qint64 startPos = node->firstSourceLocation().begin();
qint64 len = node->lastSourceLocation().end() - startPos;
textDoc.seek(startPos);
QString details = textDoc.read(len).replace('\n'," ").simplified();
emit rewriteDetailsString(type, location, details);
}
void QmlProfilerDetailsRewriter::documentReady(QmlJS::Document::Ptr doc)
{
// this could be triggered by an unrelated reload in Creator
if (!d->m_pendingDocs.contains(doc->fileName()))
return;
// if the file could not be opened this slot is still triggered but source will be an empty string
QString source = doc->source();
if (!source.isEmpty()) {
QTextStream st(&source, QIODevice::ReadOnly);
for (int i = d->m_pendingEvents.count()-1; i>=0; i--) {
PendingEvent ev = d->m_pendingEvents[i];
if (ev.localFile == doc->fileName()) {
d->m_pendingEvents.removeAt(i);
rewriteDetailsForLocation(st, doc, ev.eventType, ev.location);
}
}
}
d->m_pendingDocs.removeOne(doc->fileName());
if (d->m_pendingDocs.isEmpty()) {
disconnect(QmlJS::ModelManagerInterface::instance(),
SIGNAL(documentUpdated(QmlJS::Document::Ptr)),
this,
SLOT(documentReady(QmlJS::Document::Ptr)));
emit eventDetailsChanged();
}
}
} // namespace Internal
} // namespace QmlProfiler
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