1 /****************************************************************************
3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/
6 ** This file is part of the QtDeclarative module of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:LGPL$
9 ** GNU Lesser General Public License Usage
10 ** This file may be used under the terms of the GNU Lesser General Public
11 ** License version 2.1 as published by the Free Software Foundation and
12 ** appearing in the file LICENSE.LGPL included in the packaging of this
13 ** file. Please review the following information to ensure the GNU Lesser
14 ** General Public License version 2.1 requirements will be met:
15 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
17 ** In addition, as a special exception, Nokia gives you certain additional
18 ** rights. These rights are described in the Nokia Qt LGPL Exception
19 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
21 ** GNU General Public License Usage
22 ** Alternatively, this file may be used under the terms of the GNU General
23 ** Public License version 3.0 as published by the Free Software Foundation
24 ** and appearing in the file LICENSE.GPL included in the packaging of this
25 ** file. Please review the following information to ensure the GNU General
26 ** Public License version 3.0 requirements will be met:
27 ** http://www.gnu.org/copyleft/gpl.html.
30 ** Alternatively, this file may be used in accordance with the terms and
31 ** conditions contained in a signed written agreement between you and Nokia.
40 ****************************************************************************/
42 #ifndef QDECLARATIVECOMPONENT_H
43 #define QDECLARATIVECOMPONENT_H
45 #include <QtDeclarative/qdeclarative.h>
46 #include <QtDeclarative/qdeclarativeerror.h>
48 #include <QtCore/qobject.h>
49 #include <QtCore/qstring.h>
50 #include <QtDeclarative/qjsvalue.h>
58 class QDeclarativeEngine;
59 class QDeclarativeComponent;
60 class QDeclarativeIncubator;
61 class QDeclarativeV8Function;
62 class QDeclarativeCompiledData;
63 class QDeclarativeComponentPrivate;
64 class QDeclarativeComponentAttached;
66 class Q_DECLARATIVE_EXPORT QDeclarativeComponent : public QObject
69 Q_DECLARE_PRIVATE(QDeclarativeComponent)
71 Q_PROPERTY(qreal progress READ progress NOTIFY progressChanged)
72 Q_PROPERTY(Status status READ status NOTIFY statusChanged)
73 Q_PROPERTY(QUrl url READ url CONSTANT)
76 QDeclarativeComponent(QObject *parent = 0);
77 QDeclarativeComponent(QDeclarativeEngine *, QObject *parent=0);
78 QDeclarativeComponent(QDeclarativeEngine *, const QString &fileName, QObject *parent = 0);
79 QDeclarativeComponent(QDeclarativeEngine *, const QUrl &url, QObject *parent = 0);
80 virtual ~QDeclarativeComponent();
83 enum Status { Null, Ready, Loading, Error };
84 Status status() const;
89 bool isLoading() const;
91 QList<QDeclarativeError> errors() const;
92 Q_INVOKABLE QString errorString() const;
94 qreal progress() const;
98 virtual QObject *create(QDeclarativeContext *context = 0);
99 virtual QObject *beginCreate(QDeclarativeContext *);
100 virtual void completeCreate();
102 void create(QDeclarativeIncubator &, QDeclarativeContext *context = 0,
103 QDeclarativeContext *forContext = 0);
105 QDeclarativeContext *creationContext() const;
107 static QDeclarativeComponentAttached *qmlAttachedProperties(QObject *);
110 void loadUrl(const QUrl &url);
111 void setData(const QByteArray &, const QUrl &baseUrl);
114 void statusChanged(QDeclarativeComponent::Status);
115 void progressChanged(qreal);
118 QDeclarativeComponent(QDeclarativeComponentPrivate &dd, QObject* parent);
119 Q_INVOKABLE void createObject(QDeclarativeV8Function *);
120 Q_INVOKABLE void incubateObject(QDeclarativeV8Function *);
123 QDeclarativeComponent(QDeclarativeEngine *, QDeclarativeCompiledData *, int, QObject *parent);
125 Q_DISABLE_COPY(QDeclarativeComponent)
126 friend class QDeclarativeVME;
127 friend class QDeclarativeTypeData;
132 Q_DECLARE_METATYPE(QDeclarativeComponent::Status)
133 QML_DECLARE_TYPE(QDeclarativeComponent)
134 QML_DECLARE_TYPEINFO(QDeclarativeComponent, QML_HAS_ATTACHED_PROPERTIES)
138 #endif // QDECLARATIVECOMPONENT_H