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Diffstat (limited to 'src/declarative/qml/qdeclarativetypeloader_p.h')
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diff --git a/src/declarative/qml/qdeclarativetypeloader_p.h b/src/declarative/qml/qdeclarativetypeloader_p.h new file mode 100644 index 0000000000..7f487a0e24 --- /dev/null +++ b/src/declarative/qml/qdeclarativetypeloader_p.h @@ -0,0 +1,321 @@ +/**************************************************************************** +** +** 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), majorVersion(0), minorVersion(0), typeData(0) {} + + QDeclarativeParser::Location location; + QDeclarativeType *type; + int majorVersion; + int minorVersion; + 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 |