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     3 ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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     7 ** This file is part of the QtDeclarative module of the Qt Toolkit.

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    40 ****************************************************************************/

    41 

    42 #ifndef QDECLARATIVECOMPONENT_P_H

    43 #define QDECLARATIVECOMPONENT_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists purely as an

    50 // implementation detail.  This header file may change from version to

    51 // version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include "qdeclarativecomponent.h"

    57 

    58 #include "private/qdeclarativeengine_p.h"

    59 #include "private/qdeclarativecompositetypemanager_p.h"

    60 #include "private/qbitfield_p.h"

    61 #include "qdeclarativeerror.h"

    62 #include "qdeclarative.h"

    63 

    64 #include <QtCore/QString>

    65 #include <QtCore/QStringList>

    66 #include <QtCore/QList>

    67 

    68 #include <private/qobject_p.h>

    69 

    70 QT_BEGIN_NAMESPACE

    71 

    72 class QDeclarativeComponent;

    73 class QDeclarativeEngine;

    74 class QDeclarativeCompiledData;

    75 

    76 class QDeclarativeComponentAttached;

    77 class QDeclarativeComponentPrivate : public QObjectPrivate

    78 {

    79     Q_DECLARE_PUBLIC(QDeclarativeComponent)

    80         

    81 public:

    82     QDeclarativeComponentPrivate() : typeData(0), progress(0.), start(-1), count(-1), cc(0), engine(0), creationContext(0) {}

    83 

    84     QObject *create(QDeclarativeContextData *, const QBitField &);

    85     QObject *beginCreate(QDeclarativeContextData *, const QBitField &);

    86     void completeCreate();

    87 

    88     QDeclarativeCompositeTypeData *typeData;

    89     void typeDataReady();

    90     void updateProgress(qreal);

    91     

    92     void fromTypeData(QDeclarativeCompositeTypeData *data);

    93 

    94     QUrl url;

    95     qreal progress;

    96 

    97     int start;

    98     int count;

    99     QDeclarativeCompiledData *cc;

   100 

   101     struct ConstructionState {

   102         ConstructionState() : componentAttached(0), completePending(false) {}

   103         QList<QDeclarativeEnginePrivate::SimpleList<QDeclarativeAbstractBinding> > bindValues;

   104         QList<QDeclarativeEnginePrivate::SimpleList<QDeclarativeParserStatus> > parserStatus;

   105         QList<QPair<QDeclarativeGuard<QObject>, int> > finalizedParserStatus;

   106         QDeclarativeComponentAttached *componentAttached;

   107         QList<QDeclarativeError> errors;

   108         bool completePending;

   109     };

   110     ConstructionState state;

   111 

   112     static QObject *begin(QDeclarativeContextData *ctxt, QDeclarativeEnginePrivate *enginePriv,

   113                           QDeclarativeCompiledData *component, int start, int count,

   114                           ConstructionState *state, const QBitField &bindings = QBitField());

   115     static void beginDeferred(QDeclarativeEnginePrivate *enginePriv, QObject *object, 

   116                               ConstructionState *state);

   117     static void complete(QDeclarativeEnginePrivate *enginePriv, ConstructionState *state);

   118 

   119     QDeclarativeEngine *engine;

   120     QDeclarativeGuardedContextData creationContext;

   121 

   122     void clear();

   123 

   124     static QDeclarativeComponentPrivate *get(QDeclarativeComponent *c) {

   125         return static_cast<QDeclarativeComponentPrivate *>(QObjectPrivate::get(c));

   126     }

   127 };

   128 

   129 class QDeclarativeComponentAttached : public QObject

   130 {

   131     Q_OBJECT

   132 public:

   133     QDeclarativeComponentAttached(QObject *parent = 0);

   134     ~QDeclarativeComponentAttached();

   135 

   136     void add(QDeclarativeComponentAttached **a) {

   137         prev = a; next = *a; *a = this;

   138         if (next) next->prev = &next;

   139     }

   140     void rem() {

   141         if (next) next->prev = prev;

   142         *prev = next;

   143         next = 0; prev = 0;

   144     }

   145     QDeclarativeComponentAttached **prev;

   146     QDeclarativeComponentAttached *next;

   147 

   148 Q_SIGNALS:

   149     void completed();

   150     void destruction();

   151 

   152 private:

   153     friend class QDeclarativeContextData;

   154     friend class QDeclarativeComponentPrivate;

   155 };

   156 

   157 QT_END_NAMESPACE

   158 

   159 #endif // QDECLARATIVECOMPONENT_P_H