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Diffstat (limited to 'src/qmlmodels/qqmllistmodel_p_p.h')
| -rw-r--r-- | src/qmlmodels/qqmllistmodel_p_p.h | 429 |
1 files changed, 429 insertions, 0 deletions
diff --git a/src/qmlmodels/qqmllistmodel_p_p.h b/src/qmlmodels/qqmllistmodel_p_p.h new file mode 100644 index 0000000000..a0d0e9ad89 --- /dev/null +++ b/src/qmlmodels/qqmllistmodel_p_p.h @@ -0,0 +1,429 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/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 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QQMLLISTMODEL_P_P_H +#define QQMLLISTMODEL_P_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 "qqmllistmodel_p.h" +#include <private/qtqmlmodelsglobal_p.h> +#include <private/qqmlengine_p.h> +#include <private/qqmlopenmetaobject_p.h> +#include <private/qv4qobjectwrapper_p.h> +#include <qqml.h> + +QT_REQUIRE_CONFIG(qml_list_model); + +QT_BEGIN_NAMESPACE + + +class DynamicRoleModelNode; + +class DynamicRoleModelNodeMetaObject : public QQmlOpenMetaObject +{ +public: + DynamicRoleModelNodeMetaObject(DynamicRoleModelNode *object); + ~DynamicRoleModelNodeMetaObject(); + + bool m_enabled; + +protected: + void propertyWrite(int index) override; + void propertyWritten(int index) override; + +private: + DynamicRoleModelNode *m_owner; +}; + +class DynamicRoleModelNode : public QObject +{ + Q_OBJECT +public: + DynamicRoleModelNode(QQmlListModel *owner, int uid); + + static DynamicRoleModelNode *create(const QVariantMap &obj, QQmlListModel *owner); + + void updateValues(const QVariantMap &object, QVector<int> &roles); + + QVariant getValue(const QString &name) const + { + return m_meta->value(name.toUtf8()); + } + + bool setValue(const QByteArray &name, const QVariant &val) + { + return m_meta->setValue(name, val); + } + + void setNodeUpdatesEnabled(bool enable) + { + m_meta->m_enabled = enable; + } + + int getUid() const + { + return m_uid; + } + + static QVector<int> sync(DynamicRoleModelNode *src, DynamicRoleModelNode *target); + +private: + QQmlListModel *m_owner; + int m_uid; + DynamicRoleModelNodeMetaObject *m_meta; + + friend class DynamicRoleModelNodeMetaObject; +}; + +class ModelNodeMetaObject : public QQmlOpenMetaObject +{ +public: + ModelNodeMetaObject(QObject *object, QQmlListModel *model, int elementIndex); + ~ModelNodeMetaObject(); + + QAbstractDynamicMetaObject *toDynamicMetaObject(QObject *object) override; + + static ModelNodeMetaObject *get(QObject *obj); + + bool m_enabled; + QQmlListModel *m_model; + int m_elementIndex; + + void updateValues(); + void updateValues(const QVector<int> &roles); + + bool initialized() const { return m_initialized; } + +protected: + void propertyWritten(int index) override; + +private: + using QQmlOpenMetaObject::setValue; + + void emitDirectNotifies(const int *changedRoles, int roleCount); + + void initialize(); + bool m_initialized; +}; + +namespace QV4 { + +namespace Heap { + +struct ModelObject : public QObjectWrapper { + void init(QObject *object, QQmlListModel *model) + { + QObjectWrapper::init(object); + m_model = model; + QObjectPrivate *op = QObjectPrivate::get(object); + m_nodeModelMetaObject = static_cast<ModelNodeMetaObject *>(op->metaObject); + } + void destroy() { QObjectWrapper::destroy(); } + int elementIndex() const { return m_nodeModelMetaObject->m_elementIndex; } + QQmlListModel *m_model; + ModelNodeMetaObject *m_nodeModelMetaObject; +}; + +} + +struct ModelObject : public QObjectWrapper +{ + V4_OBJECT2(ModelObject, QObjectWrapper) + V4_NEEDS_DESTROY + + ListModel *listModel() const { return d()->m_model->m_listModel; } + +protected: + static bool virtualPut(Managed *m, PropertyKey id, const Value& value, Value *receiver); + static ReturnedValue virtualGet(const Managed *m, PropertyKey id, const Value *receiver, bool *hasProperty); + static ReturnedValue virtualResolveLookupGetter(const Object *object, ExecutionEngine *engine, Lookup *lookup); + static ReturnedValue lookupGetter(Lookup *l, ExecutionEngine *engine, const Value &object); + static OwnPropertyKeyIterator *virtualOwnPropertyKeys(const Object *m, Value *target); +}; + +} // namespace QV4 + +class ListLayout +{ +public: + ListLayout() : currentBlock(0), currentBlockOffset(0) {} + ListLayout(const ListLayout *other); + ~ListLayout(); + + class Role + { + public: + + Role() : type(Invalid), blockIndex(-1), blockOffset(-1), index(-1), subLayout(0) {} + explicit Role(const Role *other); + ~Role(); + + // This enum must be kept in sync with the roleTypeNames variable in qqmllistmodel.cpp + enum DataType + { + Invalid = -1, + + String, + Number, + Bool, + List, + QObject, + VariantMap, + DateTime, + Function, + + MaxDataType + }; + + QString name; + DataType type; + int blockIndex; + int blockOffset; + int index; + ListLayout *subLayout; + }; + + const Role *getRoleOrCreate(const QString &key, const QVariant &data); + const Role &getRoleOrCreate(QV4::String *key, Role::DataType type); + const Role &getRoleOrCreate(const QString &key, Role::DataType type); + + const Role &getExistingRole(int index) const { return *roles.at(index); } + const Role *getExistingRole(const QString &key) const; + const Role *getExistingRole(QV4::String *key) const; + + int roleCount() const { return roles.count(); } + + static void sync(ListLayout *src, ListLayout *target); + +private: + const Role &createRole(const QString &key, Role::DataType type); + + int currentBlock; + int currentBlockOffset; + QVector<Role *> roles; + QStringHash<Role *> roleHash; +}; + +struct StringOrTranslation +{ + explicit StringOrTranslation(const QString &s); + explicit StringOrTranslation(const QV4::CompiledData::Binding *binding); + ~StringOrTranslation(); + bool isSet() const { return d.flag(); } + bool isTranslation() const { return d.isT2(); } + void setString(const QString &s); + void setTranslation(const QV4::CompiledData::Binding *binding); + QString toString(const QQmlListModel *owner) const; + QString asString() const; +private: + void clear(); + QBiPointer<QStringData, const QV4::CompiledData::Binding> d; +}; + +/*! +\internal +*/ +class ListElement +{ +public: + + ListElement(); + ListElement(int existingUid); + ~ListElement(); + + static QVector<int> sync(ListElement *src, ListLayout *srcLayout, ListElement *target, ListLayout *targetLayout); + + enum + { + BLOCK_SIZE = 64 - sizeof(int) - sizeof(ListElement *) - sizeof(ModelNodeMetaObject *) + }; + +private: + + void destroy(ListLayout *layout); + + int setVariantProperty(const ListLayout::Role &role, const QVariant &d); + + int setJsProperty(const ListLayout::Role &role, const QV4::Value &d, QV4::ExecutionEngine *eng); + + int setStringProperty(const ListLayout::Role &role, const QString &s); + int setDoubleProperty(const ListLayout::Role &role, double n); + int setBoolProperty(const ListLayout::Role &role, bool b); + int setListProperty(const ListLayout::Role &role, ListModel *m); + int setQObjectProperty(const ListLayout::Role &role, QObject *o); + int setVariantMapProperty(const ListLayout::Role &role, QV4::Object *o); + int setVariantMapProperty(const ListLayout::Role &role, QVariantMap *m); + int setDateTimeProperty(const ListLayout::Role &role, const QDateTime &dt); + int setFunctionProperty(const ListLayout::Role &role, const QJSValue &f); + int setTranslationProperty(const ListLayout::Role &role, const QV4::CompiledData::Binding *b); + + void setStringPropertyFast(const ListLayout::Role &role, const QString &s); + void setDoublePropertyFast(const ListLayout::Role &role, double n); + void setBoolPropertyFast(const ListLayout::Role &role, bool b); + void setQObjectPropertyFast(const ListLayout::Role &role, QObject *o); + void setListPropertyFast(const ListLayout::Role &role, ListModel *m); + void setVariantMapFast(const ListLayout::Role &role, QV4::Object *o); + void setDateTimePropertyFast(const ListLayout::Role &role, const QDateTime &dt); + void setFunctionPropertyFast(const ListLayout::Role &role, const QJSValue &f); + + void clearProperty(const ListLayout::Role &role); + + QVariant getProperty(const ListLayout::Role &role, const QQmlListModel *owner, QV4::ExecutionEngine *eng); + ListModel *getListProperty(const ListLayout::Role &role); + StringOrTranslation *getStringProperty(const ListLayout::Role &role); + QObject *getQObjectProperty(const ListLayout::Role &role); + QPointer<QObject> *getGuardProperty(const ListLayout::Role &role); + QVariantMap *getVariantMapProperty(const ListLayout::Role &role); + QDateTime *getDateTimeProperty(const ListLayout::Role &role); + QJSValue *getFunctionProperty(const ListLayout::Role &role); + + inline char *getPropertyMemory(const ListLayout::Role &role); + + int getUid() const { return uid; } + + ModelNodeMetaObject *objectCache(); + + char data[BLOCK_SIZE]; + ListElement *next; + + int uid; + QObject *m_objectCache; + + friend class ListModel; +}; + +/*! +\internal +*/ +class ListModel +{ +public: + + ListModel(ListLayout *layout, QQmlListModel *modelCache); + ~ListModel() {} + + void destroy(); + + int setOrCreateProperty(int elementIndex, const QString &key, const QVariant &data); + int setExistingProperty(int uid, const QString &key, const QV4::Value &data, QV4::ExecutionEngine *eng); + + QVariant getProperty(int elementIndex, int roleIndex, const QQmlListModel *owner, QV4::ExecutionEngine *eng); + ListModel *getListProperty(int elementIndex, const ListLayout::Role &role); + + int roleCount() const + { + return m_layout->roleCount(); + } + + const ListLayout::Role &getExistingRole(int index) const + { + return m_layout->getExistingRole(index); + } + + const ListLayout::Role *getExistingRole(QV4::String *key) const + { + return m_layout->getExistingRole(key); + } + + const ListLayout::Role &getOrCreateListRole(const QString &name) + { + return m_layout->getRoleOrCreate(name, ListLayout::Role::List); + } + + int elementCount() const + { + return elements.count(); + } + + void set(int elementIndex, QV4::Object *object, QVector<int> *roles); + void set(int elementIndex, QV4::Object *object); + + int append(QV4::Object *object); + void insert(int elementIndex, QV4::Object *object); + + Q_REQUIRED_RESULT QVector<std::function<void()>> remove(int index, int count); + + int appendElement(); + void insertElement(int index); + + void move(int from, int to, int n); + + static bool sync(ListModel *src, ListModel *target); + + QObject *getOrCreateModelObject(QQmlListModel *model, int elementIndex); + +private: + QPODVector<ListElement *, 4> elements; + ListLayout *m_layout; + + QQmlListModel *m_modelCache; + + struct ElementSync + { + ListElement *src = nullptr; + ListElement *target = nullptr; + int srcIndex = -1; + int targetIndex = -1; + QVector<int> changedRoles; + }; + + void newElement(int index); + + void updateCacheIndices(int start = 0, int end = -1); + + friend class ListElement; + friend class QQmlListModelWorkerAgent; + friend class QQmlListModelParser; +}; + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(ListModel *); + +#endif // QQUICKLISTMODEL_P_P_H |