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// Copyright (C) 2024 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
// Qt-Security score:significant reason:default
#ifndef QANDROIDITEMMODELPROXY_P_H
#define QANDROIDITEMMODELPROXY_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
#include <QtCore/private/qandroidmodelindexproxy_p.h>
#include <QtCore/private/qandroidtypes_p.h>
#include <QtCore/qabstractitemmodel.h>
#include <QtCore/qjniobject.h>
#include <QtCore/qjnienvironment.h>
#include <QtCore/qjnitypes.h>
#include <QtCore/qthread.h>
#include <QtCore/qmutex.h>
QT_BEGIN_NAMESPACE
class Q_CORE_EXPORT QAndroidItemModelProxy : public QAbstractItemModel
{
Q_OBJECT
public:
explicit QAndroidItemModelProxy(QtJniTypes::JQtAbstractItemModel jInstance)
: jInstance(jInstance)
{
}
int columnCount(const QModelIndex &parent = QModelIndex()) const override;
QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
QModelIndex index(int row, int column,
const QModelIndex &parent = QModelIndex()) const override;
QModelIndex parent(const QModelIndex &index) const override;
int rowCount(const QModelIndex &parent = QModelIndex()) const override;
bool canFetchMore(const QModelIndex &parent) const override;
bool canFetchMoreDefault(const QModelIndex &parent) const;
QHash<int, QByteArray> roleNames() const override;
QHash<int, QByteArray> defaultRoleNames() const;
void fetchMore(const QModelIndex &parent) override;
void fetchMoreDefault(const QModelIndex &parent);
bool hasChildren(const QModelIndex &parent) const override;
bool hasChildrenDefault(const QModelIndex &parent) const;
QModelIndex sibling(int row, int column, const QModelIndex &parent) const override;
QModelIndex siblingDefault(int row, int column, const QModelIndex &parent);
bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
bool setDataDefault(const QModelIndex &index, const QVariant &value, int role);
Q_REQUIRED_RESULT static QAbstractItemModel *
nativeInstance(QtJniTypes::JQtAbstractItemModel itemModel);
Q_REQUIRED_RESULT static QAbstractItemModel *createNativeProxy(QJniObject itemModel);
static QJniObject createProxy(QAbstractItemModel *abstractClass);
template <typename Func, typename... Args>
static auto invokeNativeProxyMethod(JNIEnv * /*env*/, jobject jvmObject, Func &&func,
Args &&...args)
{
Q_ASSERT(jvmObject);
auto model = qobject_cast<QAndroidItemModelProxy *>(nativeInstance(jvmObject));
Q_ASSERT(model);
const QMutexLocker<QRecursiveMutex> lock = getMutexLocker(model);
return std::invoke(std::forward<Func>(func), model, std::forward<Args>(args)...);
}
template <typename Func, typename... Args>
static auto invokeNativeMethod(JNIEnv * /*env*/, jobject jvmObject, Func &&func, Args &&...args)
{
Q_ASSERT(jvmObject);
auto model = nativeInstance(jvmObject);
Q_ASSERT(model);
const QMutexLocker<QRecursiveMutex> lock = getMutexLocker(model);
return std::invoke(std::forward<Func>(func), model, std::forward<Args>(args)...);
}
template <typename Func1, typename Func2, typename... Args>
static auto invokeNativeImpl(JNIEnv * /*env*/, jobject jvmObject, Func1 &&defaultFunc,
Func2 &&func, Args &&...args)
{
Q_ASSERT(jvmObject);
auto nativeModel = nativeInstance(jvmObject);
auto nativeProxyModel = qobject_cast<QAndroidItemModelProxy *>(nativeModel);
const QMutexLocker<QRecursiveMutex> lock = getMutexLocker(nativeModel);
if (nativeProxyModel)
return std::invoke(std::forward<Func1>(defaultFunc), nativeProxyModel,
std::forward<Args>(args)...);
else
return std::invoke(std::forward<Func2>(func), nativeModel, std::forward<Args>(args)...);
}
static jint jni_columnCount(JNIEnv *env, jobject object, JQtModelIndex parent);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_columnCount)
static jobject jni_data(JNIEnv *env, jobject object, JQtModelIndex index, jint role);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_data)
static jobject jni_index(JNIEnv *env, jobject object, jint row, jint column,
JQtModelIndex parent);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_index)
static jobject jni_parent(JNIEnv *env, jobject object, JQtModelIndex index);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_parent)
static jint jni_rowCount(JNIEnv *env, jobject object, JQtModelIndex parent);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_rowCount)
static jboolean jni_canFetchMore(JNIEnv *env, jobject object, JQtModelIndex parent);
QT_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE_2(jni_canFetchMore, canFetchMore)
static void jni_fetchMore(JNIEnv *env, jobject object, JQtModelIndex parent);
QT_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE_2(jni_fetchMore, fetchMore)
static jboolean jni_hasChildren(JNIEnv *env, jobject object, JQtModelIndex parent);
QT_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE_2(jni_hasChildren, hasChildren)
static jboolean jni_hasIndex(JNIEnv *env, jobject object, jint row, jint column,
JQtModelIndex parent);
QT_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE_2(jni_hasIndex, hasIndex)
static jobject jni_roleNames(JNIEnv *env, jobject object);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_roleNames)
static void jni_beginInsertColumns(JNIEnv *env, jobject object, JQtModelIndex parent,
jint first, jint last);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_beginInsertColumns)
static void jni_beginInsertRows(JNIEnv *env, jobject object, JQtModelIndex parent, jint first,
jint last);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_beginInsertRows)
static jboolean jni_beginMoveColumns(JNIEnv *env, jobject object, JQtModelIndex sourceParent,
jint sourceFirst, jint sourceLast,
JQtModelIndex destinationParent, jint destinationChild);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_beginMoveColumns)
static jboolean jni_beginMoveRows(JNIEnv *env, jobject object, JQtModelIndex sourceParent,
jint sourceFirst, jint sourceLast,
JQtModelIndex destinationParent, jint destinationChild);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_beginMoveRows)
static void jni_beginRemoveColumns(JNIEnv *env, jobject object, JQtModelIndex parent,
jint first, jint last);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_beginRemoveColumns)
static void jni_beginRemoveRows(JNIEnv *env, jobject object, JQtModelIndex parent, jint first,
jint last);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_beginRemoveRows)
static void jni_beginResetModel(JNIEnv *env, jobject object);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_beginResetModel)
static jobject jni_createIndex(JNIEnv *env, jobject object, jint row, jint column, jlong id);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_createIndex)
static void jni_endInsertColumns(JNIEnv *env, jobject object);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_endInsertColumns)
static void jni_endInsertRows(JNIEnv *env, jobject object);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_endInsertRows)
static void jni_endMoveColumns(JNIEnv *env, jobject object);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_endMoveColumns)
static void jni_endMoveRows(JNIEnv *env, jobject object);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_endMoveRows)
static void jni_endRemoveColumns(JNIEnv *env, jobject object);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_endRemoveColumns)
static void jni_endRemoveRows(JNIEnv *env, jobject object);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_endRemoveRows)
static void jni_endResetModel(JNIEnv *env, jobject object);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_endResetModel)
static jobject jni_sibling(JNIEnv *env, jobject object, jint row, jint column,
JQtModelIndex parent);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_sibling)
static void jni_dataChanged(JNIEnv *env, jobject object, JQtModelIndex topLeft,
JQtModelIndex bottomRight, QJniArray<jint> roles);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_dataChanged)
static jboolean jni_setData(JNIEnv *env, jobject object, JQtModelIndex index, jobject value,
jint role);
Q_DECLARE_JNI_NATIVE_METHOD_IN_CURRENT_SCOPE(jni_setData)
static bool registerAbstractNatives(QJniEnvironment &env);
static bool registerProxyNatives(QJniEnvironment &env);
private:
static std::map<const QAbstractItemModel *, QRecursiveMutex> s_mutexes;
Q_REQUIRED_RESULT static QMutexLocker<QRecursiveMutex>
getMutexLocker(const QAbstractItemModel *model)
{
auto [iter, inserted] = s_mutexes.try_emplace(model);
if (inserted)
QObject::connect(model, &QAbstractItemModel::destroyed, model, [](QObject *model) {
s_mutexes.erase(reinterpret_cast<QAbstractItemModel *>(model));
});
return QMutexLocker(&iter->second);
}
QJniObject jInstance;
friend class QAndroidModelIndexProxy;
};
QT_END_NAMESPACE
#endif // QANDROIDITEMMODELPROXY_P_H