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/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QDECLARATIVETYPELOADER_P_H
#define QDECLARATIVETYPELOADER_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/qobject.h>
#include <QtNetwork/qnetworkreply.h>
#include <QtDeclarative/qdeclarativeerror.h>
#include <QtDeclarative/qdeclarativeengine.h>
#include <private/qdeclarativescriptparser_p.h>
#include <private/qdeclarativedirparser_p.h>
#include <private/qdeclarativeimport_p.h>
QT_BEGIN_NAMESPACE
class QDeclarativeScriptData;
class QDeclarativeQmldirData;
class QDeclarativeTypeLoader;
class QDeclarativeCompiledData;
class QDeclarativeComponentPrivate;
class QDeclarativeTypeData;
class QDeclarativeDataLoader;
class Q_AUTOTEST_EXPORT QDeclarativeDataBlob : public QDeclarativeRefCount
{
public:
enum Status {
Null, // Prior to QDeclarativeDataLoader::load()
Loading, // Prior to data being received and dataReceived() being called
WaitingForDependencies, // While there are outstanding addDependency()s
Complete, // Finished
Error, // Error
};
enum Type {
QmlFile,
JavaScriptFile,
QmldirFile
};
QDeclarativeDataBlob(const QUrl &, Type);
virtual ~QDeclarativeDataBlob();
Type type() const;
Status status() const;
bool isNull() const;
bool isLoading() const;
bool isWaiting() const;
bool isComplete() const;
bool isError() const;
bool isCompleteOrError() const;
qreal progress() const;
QUrl url() const;
QUrl finalUrl() const;
QList<QDeclarativeError> errors() const;
void setError(const QDeclarativeError &);
void setError(const QList<QDeclarativeError> &errors);
void addDependency(QDeclarativeDataBlob *);
protected:
virtual void dataReceived(const QByteArray &) = 0;
virtual void done();
virtual void networkError(QNetworkReply::NetworkError);
virtual void dependencyError(QDeclarativeDataBlob *);
virtual void dependencyComplete(QDeclarativeDataBlob *);
virtual void allDependenciesDone();
virtual void downloadProgressChanged(qreal);
private:
friend class QDeclarativeDataLoader;
void tryDone();
void cancelAllWaitingFor();
void notifyAllWaitingOnMe();
void notifyComplete(QDeclarativeDataBlob *);
Type m_type;
Status m_status;
qreal m_progress;
QUrl m_url;
QUrl m_finalUrl;
// List of QDeclarativeDataBlob's that are waiting for me to complete.
QList<QDeclarativeDataBlob *> m_waitingOnMe;
// List of QDeclarativeDataBlob's that I am waiting for to complete.
QList<QDeclarativeDataBlob *> m_waitingFor;
// Manager that is currently fetching data for me
QDeclarativeDataLoader *m_manager;
int m_redirectCount:30;
bool m_inCallback:1;
bool m_isDone:1;
QList<QDeclarativeError> m_errors;
};
class Q_AUTOTEST_EXPORT QDeclarativeDataLoader : public QObject
{
Q_OBJECT
public:
QDeclarativeDataLoader(QDeclarativeEngine *);
~QDeclarativeDataLoader();
void load(QDeclarativeDataBlob *);
void loadWithStaticData(QDeclarativeDataBlob *, const QByteArray &);
QDeclarativeEngine *engine() const;
private slots:
void networkReplyFinished();
void networkReplyProgress(qint64,qint64);
private:
void setData(QDeclarativeDataBlob *, const QByteArray &);
QDeclarativeEngine *m_engine;
typedef QHash<QNetworkReply *, QDeclarativeDataBlob *> NetworkReplies;
NetworkReplies m_networkReplies;
};
class Q_AUTOTEST_EXPORT QDeclarativeTypeLoader : public QDeclarativeDataLoader
{
Q_OBJECT
public:
QDeclarativeTypeLoader(QDeclarativeEngine *);
~QDeclarativeTypeLoader();
enum Option {
None,
PreserveParser
};
Q_DECLARE_FLAGS(Options, Option)
QDeclarativeTypeData *get(const QUrl &url);
QDeclarativeTypeData *get(const QByteArray &, const QUrl &url, Options = None);
void clearCache();
QDeclarativeScriptData *getScript(const QUrl &);
QDeclarativeQmldirData *getQmldir(const QUrl &);
private:
typedef QHash<QUrl, QDeclarativeTypeData *> TypeCache;
typedef QHash<QUrl, QDeclarativeScriptData *> ScriptCache;
typedef QHash<QUrl, QDeclarativeQmldirData *> QmldirCache;
TypeCache m_typeCache;
ScriptCache m_scriptCache;
QmldirCache m_qmldirCache;
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QDeclarativeTypeLoader::Options)
class Q_AUTOTEST_EXPORT QDeclarativeTypeData : public QDeclarativeDataBlob
{
public:
struct TypeReference
{
TypeReference() : type(0), typeData(0) {}
QDeclarativeParser::Location location;
QDeclarativeType *type;
QDeclarativeTypeData *typeData;
};
struct ScriptReference
{
ScriptReference() : script(0) {}
QDeclarativeParser::Location location;
QString qualifier;
QDeclarativeScriptData *script;
};
QDeclarativeTypeData(const QUrl &, QDeclarativeTypeLoader::Options, QDeclarativeTypeLoader *);
~QDeclarativeTypeData();
QDeclarativeTypeLoader *typeLoader() const;
const QDeclarativeImports &imports() const;
const QDeclarativeScriptParser &parser() const;
const QList<TypeReference> &resolvedTypes() const;
const QList<ScriptReference> &resolvedScripts() const;
QDeclarativeCompiledData *compiledData() const;
// Used by QDeclarativeComponent to get notifications
struct TypeDataCallback {
~TypeDataCallback() {}
virtual void typeDataProgress(QDeclarativeTypeData *, qreal) {}
virtual void typeDataReady(QDeclarativeTypeData *) {}
};
void registerCallback(TypeDataCallback *);
void unregisterCallback(TypeDataCallback *);
protected:
virtual void done();
virtual void dataReceived(const QByteArray &);
virtual void allDependenciesDone();
virtual void downloadProgressChanged(qreal);
private:
void resolveTypes();
void compile();
QDeclarativeTypeLoader::Options m_options;
QDeclarativeQmldirData *qmldirForUrl(const QUrl &);
QDeclarativeScriptParser scriptParser;
QDeclarativeImports m_imports;
QList<ScriptReference> m_scripts;
QList<QDeclarativeQmldirData *> m_qmldirs;
QList<TypeReference> m_types;
bool m_typesResolved:1;
QDeclarativeCompiledData *m_compiledData;
QList<TypeDataCallback *> m_callbacks;
QDeclarativeTypeLoader *m_typeLoader;
};
class Q_AUTOTEST_EXPORT QDeclarativeScriptData : public QDeclarativeDataBlob
{
public:
QDeclarativeScriptData(const QUrl &);
QDeclarativeParser::Object::ScriptBlock::Pragmas pragmas() const;
QString scriptSource() const;
protected:
virtual void dataReceived(const QByteArray &);
private:
QDeclarativeParser::Object::ScriptBlock::Pragmas m_pragmas;
QString m_source;
};
class Q_AUTOTEST_EXPORT QDeclarativeQmldirData : public QDeclarativeDataBlob
{
public:
QDeclarativeQmldirData(const QUrl &);
const QDeclarativeDirComponents &dirComponents() const;
protected:
virtual void dataReceived(const QByteArray &);
private:
QDeclarativeDirComponents m_components;
};
QT_END_NAMESPACE
#endif // QDECLARATIVETYPELOADER_P_H
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