QDeclarativeContextScriptClass Class Reference

#include <qdeclarativecontextscriptclass_p.h>

Inheritance diagram for QDeclarativeContextScriptClass:

Public Functions
QDeclarativeContextData *	contextFromValue (const QScriptValue &)
QScriptValue	newContext (QDeclarativeContextData *, QObject *=0)
QScriptValue	newSharedContext ()
QScriptValue	newUrlContext (QDeclarativeContextData *, QObject *, const QString &)
QScriptValue	newUrlContext (const QString &)
	QDeclarativeContextScriptClass (QDeclarativeEngine *)
QObject *	setOverrideObject (QScriptValue &, QObject *)
QUrl	urlFromValue (const QScriptValue &)
	~QDeclarativeContextScriptClass ()
Public Functions inherited from QScriptDeclarativeClass
virtual Value	call (Object *, QScriptContext *)
virtual bool	compare (Object *, Object *)
QScriptContext *	context () const
PersistentIdentifier	createPersistentIdentifier (const QString &)
PersistentIdentifier	createPersistentIdentifier (const Identifier &)
QScriptEngine *	engine () const
virtual bool	isQObject () const
virtual QScriptValue::PropertyFlags	propertyFlags (Object *, const Identifier &)
virtual QStringList	propertyNames (Object *)
	QScriptDeclarativeClass (QScriptEngine *engine)
void	setSupportsCall (bool)
bool	startsWithUpper (const Identifier &)
bool	supportsCall () const
quint32	toArrayIndex (const Identifier &, bool *ok)
virtual QObject *	toQObject (Object *, bool *ok=0)
QString	toString (const Identifier &)
virtual QVariant	toVariant (Object *, bool *ok=0)
virtual	~QScriptDeclarativeClass ()

Protected Functions
virtual Value	property (Object *, const Identifier &)
virtual QScriptClass::QueryFlags	queryProperty (Object *, const Identifier &, QScriptClass::QueryFlags flags)
virtual void	setProperty (Object *, const Identifier &name, const QScriptValue &)

Private Functions
QScriptClass::QueryFlags	queryProperty (QDeclarativeContextData *, QObject *scopeObject, const Identifier &, QScriptClass::QueryFlags flags, bool includeTypes)

Properties
QDeclarativeEngine *	engine
QDeclarativeContextData *	lastContext
QDeclarativeTypeNameCache::Data *	lastData
QScriptValue	lastFunction
int	lastPropertyIndex
QObject *	lastScopeObject
uint	m_id

Additional Inherited Members
Public Types inherited from QScriptDeclarativeClass
typedef void *	Identifier
Static Public Functions inherited from QScriptDeclarativeClass
static QScriptValue	function (const QScriptValue &, const Identifier &)
static Value	functionValue (const QScriptValue &, const Identifier &)
static QScriptValue	newObject (QScriptEngine *, QScriptDeclarativeClass *, Object *)
static Value	newObjectValue (QScriptEngine *, QScriptDeclarativeClass *, Object *)
static QScriptValue	newStaticScopeObject (QScriptEngine *, int propertyCount, const QString *names, const QScriptValue *values, const QScriptValue::PropertyFlags *flags)
	Creates a scope object with a fixed set of undeletable properties. More...
static QScriptValue	newStaticScopeObject (QScriptEngine *)
	Creates a static scope object that's initially empty, but to which new properties can be added. More...
static Object *	object (const QScriptValue &)
static QScriptValue	property (const QScriptValue &, const Identifier &)
static Value	propertyValue (const QScriptValue &, const Identifier &)
static QScriptContext *	pushCleanContext (QScriptEngine *)
	Enters a new execution context and returns the associated QScriptContext object. More...
static QScriptValue	scopeChainValue (QScriptContext *, int index)
static QScriptDeclarativeClass *	scriptClass (const QScriptValue &)
Protected Variables inherited from QScriptDeclarativeClass
QScopedPointer< QScriptDeclarativeClassPrivate >	d_ptr

Detailed Description

Definition at line 64 of file qdeclarativecontextscriptclass_p.h.

Constructors and Destructors

QDeclarativeContextScriptClass()

QDeclarativeContextScriptClass::QDeclarativeContextScriptClass

(

QDeclarativeEngine *

bindEngine

)

Definition at line 95 of file qdeclarativecontextscriptclass.cpp.

: QScriptDeclarativeClass(QDeclarativeEnginePrivate::getScriptEngine(bindEngine)), engine(bindEngine),
  lastScopeObject(0), lastContext(0), lastData(0), lastPropertyIndex(-1)
{
}

~QDeclarativeContextScriptClass()

QDeclarativeContextScriptClass::~QDeclarativeContextScriptClass

(

)

Definition at line 101 of file qdeclarativecontextscriptclass.cpp.

{
}

Functions

contextFromValue()

QDeclarativeContextData * QDeclarativeContextScriptClass::contextFromValue

(

const QScriptValue &

v

)

Definition at line 134 of file qdeclarativecontextscriptclass.cpp.

Referenced by QDeclarativeInclude::include(), QDeclarativeInclude::QDeclarativeInclude(), QDeclarativeObjectScriptClass::queryProperty(), and QDeclarativeObjectScriptClass::setProperty().

{
    if (scriptClass(v) != this)
        return 0;

    ContextData *data = (ContextData *)object(v);
    return data->getContext(engine);
}

newContext()

QScriptValue QDeclarativeContextScriptClass::newContext	(	QDeclarativeContextData *	context,
		QObject *	scopeObject = 0
	)

Definition at line 105 of file qdeclarativecontextscriptclass.cpp.

Referenced by QDeclarativeExpressionPrivate::evalInObjectScope(), and QDeclarativeExpressionPrivate::scriptValue().

{
    QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);

    return newObject(scriptEngine, this, new ContextData(context, scopeObject));
}

newSharedContext()

QScriptValue QDeclarativeContextScriptClass::newSharedContext

(

)

Definition at line 127 of file qdeclarativecontextscriptclass.cpp.

Referenced by QDeclarativeExpressionPrivate::init().

{
    QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);

    return newObject(scriptEngine, this, new ContextData());
}

newUrlContext() [1/2]

QScriptValue QDeclarativeContextScriptClass::newUrlContext	(	QDeclarativeContextData *	context,
		QObject *	scopeObject,
		const QString &	url
	)

Definition at line 112 of file qdeclarativecontextscriptclass.cpp.

Referenced by QDeclarativeContextData::addImportedScript(), QDeclarativeInclude::finished(), and QDeclarativeInclude::include().

{
    QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);

    return newObject(scriptEngine, this, new UrlContextData(context, scopeObject, url));
}

newUrlContext() [2/2]

QScriptValue QDeclarativeContextScriptClass::newUrlContext

(

const QString &

url

)

Definition at line 120 of file qdeclarativecontextscriptclass.cpp.

{
    QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);

    return newObject(scriptEngine, this, new UrlContextData(url));
}

property()

QDeclarativeContextScriptClass::Value QDeclarativeContextScriptClass::property ( Object *  object, const Identifier &  name  )

protectedvirtual

Reimplemented from QScriptDeclarativeClass.

Definition at line 262 of file qdeclarativecontextscriptclass.cpp.

{
    Q_UNUSED(object);

    QDeclarativeContextData *bindContext = lastContext;
    Q_ASSERT(bindContext);

    QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(engine);
    QScriptEngine *scriptEngine = QDeclarativeEnginePrivate::getScriptEngine(engine);

    if (lastData) {

        if (lastData->type) {
            return Value(scriptEngine, ep->typeNameClass->newObject(lastScopeObject, lastData->type));
        } else if (lastData->typeNamespace) {
            return Value(scriptEngine, ep->typeNameClass->newObject(lastScopeObject, lastData->typeNamespace));
        } else {
            int index = lastData->importedScriptIndex;
            if (index < bindContext->importedScripts.count()) {
                return Value(scriptEngine, bindContext->importedScripts.at(index));
            } else {
                return Value();
            }
        }

    } else if (lastScopeObject) {

        return ep->objectClass->property(lastScopeObject, name);

    } else if (lastPropertyIndex != -1) {

        QScriptValue rv;
        if (lastPropertyIndex < bindContext->idValueCount) {
            rv =  ep->objectClass->newQObject(bindContext->idValues[lastPropertyIndex].data());

            if (ep->captureProperties) 
                ep->capturedProperties << QDeclarativeEnginePrivate::CapturedProperty(&bindContext->idValues[lastPropertyIndex].bindings);
        } else {
            QDeclarativeContextPrivate *cp = bindContext->asQDeclarativeContextPrivate();
            const QVariant &value = cp->propertyValues.at(lastPropertyIndex);
            if (value.userType() == qMetaTypeId<QList<QObject*> >()) {
                rv = ep->listClass->newList(QDeclarativeListProperty<QObject>(bindContext->asQDeclarativeContext(), (void*)lastPropertyIndex, 0, QDeclarativeContextPrivate::context_count, QDeclarativeContextPrivate::context_at), qMetaTypeId<QDeclarativeListProperty<QObject> >());
            } else {
                rv = ep->scriptValueFromVariant(value);
            }

            if (ep->captureProperties) 
                ep->capturedProperties << QDeclarativeEnginePrivate::CapturedProperty(bindContext->asQDeclarativeContext(), -1, lastPropertyIndex + cp->notifyIndex);
        }

        return Value(scriptEngine, rv);

    } else {

        return Value(scriptEngine, lastFunction);

    }
}

queryProperty() [1/2]

QScriptClass::QueryFlags QDeclarativeContextScriptClass::queryProperty ( Object *  object, const Identifier &  name, QScriptClass::QueryFlags  flags  )

protectedvirtual

Reimplemented from QScriptDeclarativeClass.

Definition at line 168 of file qdeclarativecontextscriptclass.cpp.

{
    Q_UNUSED(flags);
    
    lastScopeObject = 0;
    lastContext = 0;
    lastData = 0;
    lastPropertyIndex = -1;

    QDeclarativeContextData *bindContext = ((ContextData *)object)->getContext(engine);
    QObject *scopeObject = ((ContextData *)object)->getScope(engine);
    if (!bindContext)
        return 0;

    QObject *overrideObject = ((ContextData *)object)->overrideObject;
    if (overrideObject) {
        QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(engine);
        QScriptClass::QueryFlags rv = 
            ep->objectClass->queryProperty(overrideObject, name, flags, bindContext, 
                                           QDeclarativeObjectScriptClass::ImplicitObject | 
                                           QDeclarativeObjectScriptClass::SkipAttachedProperties);
        if (rv) {
            lastScopeObject = overrideObject;
            lastContext = bindContext;
            return rv;
        }
    }

    bool includeTypes = true;
    while (bindContext) {
        QScriptClass::QueryFlags rv = 
            queryProperty(bindContext, scopeObject, name, flags, includeTypes);
        scopeObject = 0; // Only applies to the first context
        includeTypes = false; // Only applies to the first context
        if (rv) return rv;
        bindContext = bindContext->parent;
    }

    return 0;
}

queryProperty() [2/2]

QScriptClass::QueryFlags QDeclarativeContextScriptClass::queryProperty ( QDeclarativeContextData *  bindContext, QObject *  scopeObject, const Identifier &  name, QScriptClass::QueryFlags  flags, bool  includeTypes  )

private

Definition at line 211 of file qdeclarativecontextscriptclass.cpp.

{
    QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(engine);

    lastPropertyIndex = bindContext->propertyNames?bindContext->propertyNames->value(name):-1;
    if (lastPropertyIndex != -1) {
        lastContext = bindContext;
        return QScriptClass::HandlesReadAccess;
    }

    if (includeTypes && bindContext->imports) { 
        QDeclarativeTypeNameCache::Data *data = bindContext->imports->data(name);

        if (data)  {
            lastData = data;
            lastContext = bindContext;
            lastScopeObject = scopeObject;
            return QScriptClass::HandlesReadAccess;
        }
    }

    if (scopeObject) {
        QScriptClass::QueryFlags rv = 
            ep->objectClass->queryProperty(scopeObject, name, flags, bindContext, 
                                           QDeclarativeObjectScriptClass::ImplicitObject | QDeclarativeObjectScriptClass::SkipAttachedProperties);
        if (rv) {
            lastScopeObject = scopeObject;
            lastContext = bindContext;
            return rv;
        }
    }

    if (bindContext->contextObject) {
        QScriptClass::QueryFlags rv = 
            ep->objectClass->queryProperty(bindContext->contextObject, name, flags, bindContext, 
                                           QDeclarativeObjectScriptClass::ImplicitObject | QDeclarativeObjectScriptClass::SkipAttachedProperties);

        if (rv) {
            lastScopeObject = bindContext->contextObject;
            lastContext = bindContext;
            return rv;
        }
    }

    return 0;
}

setOverrideObject()

QObject * QDeclarativeContextScriptClass::setOverrideObject	(	QScriptValue &	v,
		QObject *	override
	)

Definition at line 156 of file qdeclarativecontextscriptclass.cpp.

Referenced by QDeclarativeQtScriptExpression::eval().

{
    if (scriptClass(v) != this)
        return 0;

    ContextData *data = (ContextData *)object(v);
    QObject *rv = data->overrideObject;
    data->overrideObject = override;
    return rv;
}

setProperty()

void QDeclarativeContextScriptClass::setProperty ( Object *  object, const Identifier &  name, const QScriptValue &  value  )

protectedvirtual

Reimplemented from QScriptDeclarativeClass.

Definition at line 321 of file qdeclarativecontextscriptclass.cpp.

{
    Q_UNUSED(object);
    Q_ASSERT(lastScopeObject);

    QDeclarativeContextData *bindContext = lastContext;
    Q_ASSERT(bindContext);

    QDeclarativeEnginePrivate *ep = QDeclarativeEnginePrivate::get(engine);

    ep->objectClass->setProperty(lastScopeObject, name, value, context(), bindContext);
}

urlFromValue()

QUrl QDeclarativeContextScriptClass::urlFromValue

(

const QScriptValue &

v

)

Definition at line 143 of file qdeclarativecontextscriptclass.cpp.

Referenced by QDeclarativeInclude::include().

{
    if (scriptClass(v) != this)
        return QUrl();

    ContextData *data = (ContextData *)object(v);
    if (data->isUrlContext) {
        return QUrl(static_cast<UrlContextData *>(data)->url);
    } else {
        return QUrl();
    }
}

Properties

engine

QDeclarativeEngine* QDeclarativeContextScriptClass::engine

private

Definition at line 92 of file qdeclarativecontextscriptclass_p.h.

lastContext

QDeclarativeContextData* QDeclarativeContextScriptClass::lastContext

private

Definition at line 95 of file qdeclarativecontextscriptclass_p.h.

Referenced by property(), queryProperty(), and setProperty().

lastData

QDeclarativeTypeNameCache::Data* QDeclarativeContextScriptClass::lastData

private

Definition at line 96 of file qdeclarativecontextscriptclass_p.h.

Referenced by property(), and queryProperty().

lastFunction

QScriptValue QDeclarativeContextScriptClass::lastFunction

private

Definition at line 98 of file qdeclarativecontextscriptclass_p.h.

Referenced by property().

lastPropertyIndex

int QDeclarativeContextScriptClass::lastPropertyIndex

private

Definition at line 97 of file qdeclarativecontextscriptclass_p.h.

Referenced by property(), and queryProperty().

lastScopeObject

QObject* QDeclarativeContextScriptClass::lastScopeObject

private

Definition at line 94 of file qdeclarativecontextscriptclass_p.h.

Referenced by property(), queryProperty(), and setProperty().

m_id

uint QDeclarativeContextScriptClass::m_id

private

Definition at line 100 of file qdeclarativecontextscriptclass_p.h.

---

The documentation for this class was generated from the following files:

• /src/declarative/qml/qdeclarativecontextscriptclass_p.h
• /src/declarative/qml/qdeclarativecontextscriptclass.cpp