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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