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| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtQml module of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
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| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU |
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| ****************************************************************************/ |
| |
| #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(); |
| } |
| |
| enum class SetElement {WasJustInserted, IsCurrentlyUpdated}; |
| |
| void set(int elementIndex, QV4::Object *object, QVector<int> *roles); |
| void set(int elementIndex, QV4::Object *object, SetElement reason = SetElement::IsCurrentlyUpdated); |
| |
| 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 |