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/*
metaobjectbrowser.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2010 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Kevin Funk <kevin.funk@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "metaobjectbrowser.h"
#include "metaobjecttreemodel.h"
#include <core/metaobjectregistry.h>
#include <core/probe.h>
#include <core/propertycontroller.h>
#include <core/problemcollector.h>
#include <core/qmetaobjectvalidator.h>
#include <core/remote/serverproxymodel.h>
#include <common/objectbroker.h>
#include <common/metatypedeclarations.h>
#include <common/tools/metaobjectbrowser/qmetaobjectmodel.h>
#include <QDebug>
#include <QSortFilterProxyModel>
#include <QItemSelectionModel>
using namespace GammaRay;
MetaObjectBrowser::MetaObjectBrowser(Probe *probe, QObject *parent)
: QObject(parent)
, m_propertyController(new PropertyController(QStringLiteral("com.kdab.GammaRay.MetaObjectBrowser"), this))
, m_motm(new MetaObjectTreeModel(this))
, m_model(nullptr)
{
auto model = new ServerProxyModel<QSortFilterProxyModel>(this);
model->addRole(QMetaObjectModel::MetaObjectIssues);
model->addRole(QMetaObjectModel::MetaObjectInvalid);
model->setSourceModel(m_motm);
m_model = model;
probe->registerModel(QStringLiteral("com.kdab.GammaRay.MetaObjectBrowserTreeModel"), m_model);
QItemSelectionModel *selectionModel = ObjectBroker::selectionModel(m_model);
connect(selectionModel, &QItemSelectionModel::selectionChanged,
this, &MetaObjectBrowser::objectSelectionChanged);
m_propertyController->setMetaObject(nullptr); // init
connect(probe, &Probe::objectSelected, this, &MetaObjectBrowser::qobjectSelected);
connect(probe, &Probe::nonQObjectSelected, this, &MetaObjectBrowser::voidPtrObjectSelected);
ObjectBroker::registerObject(QStringLiteral("com.kdab.GammaRay.MetaObjectBrowser"), this);
ProblemCollector::registerProblemChecker(QStringLiteral("com.kdab.GammaRay.MetaObjectBrowser.QMetaObjectValidator"),
QStringLiteral("QMetaObject Validator"),
QStringLiteral("Checks for common errors with meta objects, like invocable functions with unregistered parameter types."),
&MetaObjectBrowser::scanForMetaObjectProblems,
/*enabled=*/false);
}
void MetaObjectBrowser::rescanMetaTypes()
{
Probe::instance()->metaObjectRegistry()->scanMetaTypes();
}
void MetaObjectBrowser::objectSelectionChanged(const QItemSelection &selection)
{
QModelIndex index;
if (selection.size() == 1)
index = selection.first().topLeft();
if (index.isValid()) {
const QMetaObject *metaObject = index.data(QMetaObjectModel::MetaObjectRole).value<const QMetaObject *>();
m_propertyController->setMetaObject(metaObject);
} else {
m_propertyController->setMetaObject(nullptr);
}
}
void MetaObjectBrowser::qobjectSelected(QObject *obj)
{
if (!obj)
return;
metaObjectSelected(obj->metaObject());
}
void MetaObjectBrowser::voidPtrObjectSelected(void *obj, const QString &typeName)
{
if (typeName != QLatin1String("const QMetaObject*"))
return;
metaObjectSelected(static_cast<QMetaObject *>(obj));
}
void MetaObjectBrowser::metaObjectSelected(const QMetaObject *mo)
{
if (!mo)
return;
mo = Probe::instance()->metaObjectRegistry()->canonicalMetaObject(mo);
const auto indexes = m_model->match(m_model->index(0, 0), QMetaObjectModel::MetaObjectRole,
QVariant::fromValue(mo),
Qt::MatchExactly | Qt::MatchRecursive | Qt::MatchWrap);
if (indexes.isEmpty()) {
metaObjectSelected(mo->superClass());
return;
}
ObjectBroker::selectionModel(m_model)->select(
indexes.first(), QItemSelectionModel::Rows | QItemSelectionModel::ClearAndSelect);
}
QVector<QByteArray> MetaObjectBrowserFactory::selectableTypes() const
{
return QVector<QByteArray>() << QObject::staticMetaObject.className() << "QMetaObject";
}
void MetaObjectBrowser::scanForMetaObjectProblems()
{
doProblemScan(nullptr);
}
void MetaObjectBrowser::doProblemScan(const QMetaObject *parent)
{
auto registry = Probe::instance()->metaObjectRegistry();
const QVector<const QMetaObject *> metaObjects = registry->childrenOf(parent);
for (const QMetaObject *mo : metaObjects) {
if (!registry->isValid(mo) || !registry->isStatic(mo))
continue;
auto results = QMetaObjectValidator::check(mo);
if (results != QMetaObjectValidatorResult::NoIssue) {
// TODO do we want the Problem descriptions have more detail, i.e. have one problem listed
// for each method/property that has issues instead of one for each metaobject?
Problem p;
p.severity = Problem::Warning;
QStringList issueList;
if (results & QMetaObjectValidatorResult::SignalOverride)
issueList.push_back(QStringLiteral("overrides base class signal"));
if (results & QMetaObjectValidatorResult::UnknownMethodParameterType)
issueList.push_back(QStringLiteral("uses a parameter type not registered with the meta type system"));
if (results & QMetaObjectValidatorResult::PropertyOverride)
issueList.push_back(QStringLiteral("overrides base class property"));
if (results & QMetaObjectValidatorResult::UnknownPropertyType)
issueList.push_back(QStringLiteral("has a property with a type not registered with the meta type system"));
p.description = QStringLiteral("%1 %2.").arg(mo->className(), issueList.join(QStringLiteral(", ")));
p.object = ObjectId(const_cast<QMetaObject *>(mo), "const QMetaObject*");
p.problemId = QStringLiteral("com.kdab.GammaRay.MetaObjectBrowser.QMetaObjectValidator:%1").arg(reinterpret_cast<quintptr>(mo));
p.findingCategory = Problem::Scan;
ProblemCollector::addProblem(p);
}
doProblemScan(mo);
}
}
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