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Diffstat (limited to 'src/qmlxmllistmodel/qqmlxmllistmodel_p.h')
| -rw-r--r-- | src/qmlxmllistmodel/qqmlxmllistmodel_p.h | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/src/qmlxmllistmodel/qqmlxmllistmodel_p.h b/src/qmlxmllistmodel/qqmlxmllistmodel_p.h new file mode 100644 index 0000000000..81622d880e --- /dev/null +++ b/src/qmlxmllistmodel/qqmlxmllistmodel_p.h @@ -0,0 +1,219 @@ +// Copyright (C) 2021 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 + +#ifndef QQMLXMLLISTMODEL_H +#define QQMLXMLLISTMODEL_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 <private/qflatmap_p.h> +#include <private/qtqmlxmllistmodelglobal_p.h> + +#include <QtQml/qqmllist.h> +#include <QtQml/qqmlparserstatus.h> + +#include <QtQmlIntegration/qqmlintegration.h> + +#include <QtCore/qabstractitemmodel.h> +#include <QtCore/qbytearray.h> +#include <QtCore/qfuture.h> +#include <QtCore/qhash.h> +#include <QtCore/qstringlist.h> +#include <QtCore/qurl.h> + +QT_BEGIN_NAMESPACE + +#if QT_CONFIG(qml_network) +class QNetworkReply; +#endif + +class QXmlStreamReader; +class QQmlContext; +struct QQmlXmlListModelQueryJob +{ + int queryId; + QByteArray data; + QString query; + QStringList roleNames; + QStringList elementNames; + QStringList elementAttributes; + QList<void *> roleQueryErrorId; +}; +struct QQmlXmlListModelQueryResult +{ + Q_GADGET + QML_ANONYMOUS +public: + int queryId; + QList<QFlatMap<int, QString>> data; + QList<QPair<void *, QString>> errors; +}; + +class Q_QMLXMLLISTMODEL_EXPORT QQmlXmlListModelRole : public QObject +{ + Q_OBJECT + Q_PROPERTY(QString name READ name WRITE setName NOTIFY nameChanged) + Q_PROPERTY(QString elementName READ elementName WRITE setElementName NOTIFY elementNameChanged) + Q_PROPERTY(QString attributeName READ attributeName WRITE setAttributeName NOTIFY + attributeNameChanged) + QML_NAMED_ELEMENT(XmlListModelRole) + +public: + QQmlXmlListModelRole() = default; + ~QQmlXmlListModelRole() = default; + + QString name() const; + void setName(const QString &name); + QString elementName() const; + void setElementName(const QString &name); + QString attributeName() const; + void setAttributeName(const QString &attributeName); + bool isValid() const; + +Q_SIGNALS: + void nameChanged(); + void elementNameChanged(); + void attributeNameChanged(); + +private: + QString m_name; + QString m_elementName; + QString m_attributeName; +}; + +class QQmlXmlListModelQueryExecutor; + +class Q_QMLXMLLISTMODEL_EXPORT QQmlXmlListModel : public QAbstractListModel, + public QQmlParserStatus +{ + Q_OBJECT + Q_INTERFACES(QQmlParserStatus) + + Q_PROPERTY(Status status READ status NOTIFY statusChanged) + Q_PROPERTY(qreal progress READ progress NOTIFY progressChanged) + Q_PROPERTY(QUrl source READ source WRITE setSource NOTIFY sourceChanged) + Q_PROPERTY(QString query READ query WRITE setQuery NOTIFY queryChanged) + Q_PROPERTY(QQmlListProperty<QQmlXmlListModelRole> roles READ roleObjects) + Q_PROPERTY(int count READ count NOTIFY countChanged) + QML_NAMED_ELEMENT(XmlListModel) + Q_CLASSINFO("DefaultProperty", "roles") + +public: + QQmlXmlListModel(QObject *parent = nullptr); + ~QQmlXmlListModel(); + + QModelIndex index(int row, int column, const QModelIndex &parent) const override; + int rowCount(const QModelIndex &parent) const override; + QVariant data(const QModelIndex &index, int role) const override; + QHash<int, QByteArray> roleNames() const override; + + int count() const; + + QUrl source() const; + void setSource(const QUrl &); + + QString query() const; + void setQuery(const QString &); + + QQmlListProperty<QQmlXmlListModelRole> roleObjects(); + + void appendRole(QQmlXmlListModelRole *); + void clearRole(); + + enum Status { Null, Ready, Loading, Error }; + Q_ENUM(Status) + Status status() const; + qreal progress() const; + + Q_INVOKABLE QString errorString() const; + + void classBegin() override; + void componentComplete() override; + +Q_SIGNALS: + void statusChanged(QQmlXmlListModel::Status); + void progressChanged(qreal progress); + void countChanged(); + void sourceChanged(); + void queryChanged(); + +public Q_SLOTS: + void reload(); + +private Q_SLOTS: +#if QT_CONFIG(qml_network) + void requestFinished(); +#endif + void requestProgress(qint64, qint64); + void dataCleared(); + void queryCompleted(const QQmlXmlListModelQueryResult &); + void queryError(void *object, const QString &error); + +private: + Q_DISABLE_COPY(QQmlXmlListModel) + + void notifyQueryStarted(bool remoteSource); + + static void appendRole(QQmlListProperty<QQmlXmlListModelRole> *, QQmlXmlListModelRole *); + static void clearRole(QQmlListProperty<QQmlXmlListModelRole> *); + + void tryExecuteQuery(const QByteArray &data); + + QQmlXmlListModelQueryJob createJob(const QByteArray &data); + int nextQueryId(); + +#if QT_CONFIG(qml_network) + void deleteReply(); + + QNetworkReply *m_reply = nullptr; +#endif + + int m_size = 0; + QUrl m_source; + QString m_query; + QStringList m_roleNames; + QList<int> m_roles; + QList<QQmlXmlListModelRole *> m_roleObjects; + QList<QFlatMap<int, QString>> m_data; + bool m_isComponentComplete = true; + Status m_status = QQmlXmlListModel::Null; + QString m_errorString; + qreal m_progress = 0; + int m_queryId = -1; + int m_nextQueryIdGenerator = -1; + int m_highestRole = Qt::UserRole; + using ResultFutureWatcher = QFutureWatcher<QQmlXmlListModelQueryResult>; + QFlatMap<int, ResultFutureWatcher *> m_watchers; +}; + +class QQmlXmlListModelQueryRunnable : public QRunnable +{ +public: + explicit QQmlXmlListModelQueryRunnable(QQmlXmlListModelQueryJob &&job); + void run() override; + + QFuture<QQmlXmlListModelQueryResult> future() const; + +private: + void doQueryJob(QQmlXmlListModelQueryResult *currentResult); + void processElement(QQmlXmlListModelQueryResult *currentResult, const QString &element, + QXmlStreamReader &reader); + void readSubTree(const QString &prefix, QXmlStreamReader &reader, + QFlatMap<int, QString> &results, QList<QPair<void *, QString>> *errors); + + QQmlXmlListModelQueryJob m_job; + QPromise<QQmlXmlListModelQueryResult> m_promise; +}; + +QT_END_NAMESPACE + +#endif // QQMLXMLLISTMODEL_H |