Inheritance diagram for QDeclarativeWorkerScriptEnginePrivate:

Classes
struct	ScriptEngine

struct	WorkerScript

Public Types
enum	WorkerEventTypes { WorkerDestroyEvent = QEvent::User + 100 }

Signals
void	stopThread ()

Signals inherited from QObject
void	destroyed (QObject *=0)
	This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More...

Public Functions
QScriptValue	getWorker (int)

	QDeclarativeWorkerScriptEnginePrivate (QDeclarativeEngine *eng)

Public Functions inherited from QObject
bool	blockSignals (bool b)
	If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More...

const QObjectList &	children () const
	Returns a list of child objects. More...

bool	connect (const QObject sender, const char signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const

bool	disconnect (const char signal=0, const QObject receiver=0, const char *member=0)

bool	disconnect (const QObject receiver, const char member=0)

void	dumpObjectInfo ()
	Dumps information about signal connections, etc. More...

void	dumpObjectTree ()
	Dumps a tree of children to the debug output. More...

QList< QByteArray >	dynamicPropertyNames () const
	Returns the names of all properties that were dynamically added to the object using setProperty(). More...

virtual bool	eventFilter (QObject , QEvent )
	Filters events if this object has been installed as an event filter for the watched object. More...

template<typename T >
T	findChild (const QString &aName=QString()) const
	Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More...

template<typename T >
QList< T >	findChildren (const QString &aName=QString()) const
	Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More...

template<typename T >
QList< T >	findChildren (const QRegExp &re) const

bool	inherits (const char *classname) const
	Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More...

void	installEventFilter (QObject *)
	Installs an event filter filterObj on this object. More...

bool	isWidgetType () const
	Returns true if the object is a widget; otherwise returns false. More...

void	killTimer (int id)
	Kills the timer with timer identifier, id. More...

virtual const QMetaObject *	metaObject () const
	Returns a pointer to the meta-object of this object. More...

void	moveToThread (QThread *thread)
	Changes the thread affinity for this object and its children. More...

QString	objectName () const

QObject *	parent () const
	Returns a pointer to the parent object. More...

QVariant	property (const char *name) const
	Returns the value of the object's name property. More...

Q_INVOKABLE	QObject (QObject *parent=0)
	Constructs an object with parent object parent. More...

void	removeEventFilter (QObject *)
	Removes an event filter object obj from this object. More...

void	setObjectName (const QString &name)

void	setParent (QObject *)
	Makes the object a child of parent. More...

bool	setProperty (const char *name, const QVariant &value)
	Sets the value of the object's name property to value. More...

void	setUserData (uint id, QObjectUserData *data)

bool	signalsBlocked () const
	Returns true if signals are blocked; otherwise returns false. More...

int	startTimer (int interval)
	Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More...

QThread *	thread () const
	Returns the thread in which the object lives. More...

QObjectUserData *	userData (uint id) const

virtual	~QObject ()
	Destroys the object, deleting all its child objects. More...

Static Public Functions
static QDeclarativeWorkerScriptEnginePrivate *	get (QScriptEngine *e)

static QScriptValue	onMessage (QScriptContext ctxt, QScriptEngine engine)

static QVariant	scriptValueToVariant (const QScriptValue &)

static QScriptValue	sendMessage (QScriptContext ctxt, QScriptEngine engine)

static QScriptValue	variantToScriptValue (const QVariant &, QScriptEngine *)

Static Public Functions inherited from QObject
static bool	connect (const QObject sender, const char signal, const QObject receiver, const char member, Qt::ConnectionType=Qt::AutoConnection)
	Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More...

static bool	connect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection)

static bool	disconnect (const QObject sender, const char signal, const QObject receiver, const char member)
	Disconnects signal in object sender from method in object receiver. More...

static bool	disconnect (const QObject sender, const QMetaMethod &signal, const QObject receiver, const QMetaMethod &member)

static uint	registerUserData ()

static QString	tr (const char sourceText, const char comment=0, int n=-1)

static QString	trUtf8 (const char sourceText, const char comment=0, int n=-1)

Public Variables
QMutex	m_lock

int	m_nextId

QWaitCondition	m_wait

QDeclarativeEngine *	qmlengine

ScriptEngine *	workerEngine

QHash< int, WorkerScript * >	workers

Protected Functions
virtual bool	event (QEvent *)
	This virtual function receives events to an object and should return true if the event e was recognized and processed. More...

Protected Functions inherited from QObject
virtual void	childEvent (QChildEvent *)
	This event handler can be reimplemented in a subclass to receive child events. More...

virtual void	connectNotify (const char *signal)
	This virtual function is called when something has been connected to signal in this object. More...

virtual void	customEvent (QEvent *)
	This event handler can be reimplemented in a subclass to receive custom events. More...

virtual void	disconnectNotify (const char *signal)
	This virtual function is called when something has been disconnected from signal in this object. More...

	QObject (QObjectPrivate &dd, QObject *parent=0)

int	receivers (const char *signal) const
	Returns the number of receivers connected to the signal. More...

QObject *	sender () const
	Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More...

int	senderSignalIndex () const

virtual void	timerEvent (QTimerEvent *)
	This event handler can be reimplemented in a subclass to receive timer events for the object. More...

Private Functions
void	processLoad (int, const QUrl &)

void	processMessage (int, const QVariant &)

void	reportScriptException (WorkerScript *)

Additional Inherited Members
Public Slots inherited from QObject
void	deleteLater ()
	Schedules this object for deletion. More...

Static Public Variables inherited from QObject
static const QMetaObject	staticMetaObject
	This variable stores the meta-object for the class. More...

Protected Variables inherited from QObject
QScopedPointer< QObjectData >	d_ptr

Static Protected Variables inherited from QObject
static const QMetaObject	staticQtMetaObject

Related Functions inherited from QObject
T	qFindChildqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QString &name)()

QList< T >	qFindChildrenqFindChildren (const QObject *obj, const QRegExp &regExp)()

T *	qobject_cast (QObject *object)

	QObjectList

void *	qt_find_obj_child (QObject parent, const char type, const QString &name)
	Returns a pointer to the object named name that inherits type and with a given parent. More...

Detailed Description

Definition at line 121 of file qdeclarativeworkerscript.cpp.

Enumerations

◆ WorkerEventTypes

enum QDeclarativeWorkerScriptEnginePrivate::WorkerEventTypes

Enumerator
WorkerDestroyEvent

Definition at line 125 of file qdeclarativeworkerscript.cpp.

                           {
         WorkerDestroyEvent = QEvent::User + 100
     };

Constructors and Destructors

◆ QDeclarativeWorkerScriptEnginePrivate()

QDeclarativeWorkerScriptEnginePrivate::QDeclarativeWorkerScriptEnginePrivate ( QDeclarativeEngine * eng )

Definition at line 194 of file qdeclarativeworkerscript.cpp.

 : workerEngine(0), qmlengine(engine), m_nextId(0)
 {
 }

Functions

◆ event()

bool QDeclarativeWorkerScriptEnginePrivate::event ( QEvent * e )

protectedvirtual

This virtual function receives events to an object and should return true if the event e was recognized and processed.

The event() function can be reimplemented to customize the behavior of an object.

See also: installEventFilter(), timerEvent(), QApplication::sendEvent(), QApplication::postEvent(), QWidget::event()

Reimplemented from QObject.

Definition at line 263 of file qdeclarativeworkerscript.cpp.

 {
     if (event->type() == (QEvent::Type)WorkerDataEvent::WorkerData) {
         WorkerDataEvent *workerEvent = static_cast<WorkerDataEvent *>(event);
         processMessage(workerEvent->workerId(), workerEvent->data());
         return true;
     } else if (event->type() == (QEvent::Type)WorkerLoadEvent::WorkerLoad) {
         WorkerLoadEvent *workerEvent = static_cast<WorkerLoadEvent *>(event);
         processLoad(workerEvent->workerId(), workerEvent->url());
         return true;
     } else if (event->type() == (QEvent::Type)WorkerDestroyEvent) {
         emit stopThread();
         return true;
     } else {
         return QObject::event(event);
     }
 }

◆ get()

static QDeclarativeWorkerScriptEnginePrivate* QDeclarativeWorkerScriptEnginePrivate::get ( QScriptEngine * e )

inlinestatic

Definition at line 150 of file qdeclarativeworkerscript.cpp.

Referenced by onMessage(), reportScriptException(), and sendMessage().

                                                                         {
         return static_cast<ScriptEngine *>(e)->p;
     }

◆ getWorker()

QScriptValue QDeclarativeWorkerScriptEnginePrivate::getWorker ( int id )

Definition at line 237 of file qdeclarativeworkerscript.cpp.

Referenced by processLoad().

 {
     QHash<int, WorkerScript *>::ConstIterator iter = workers.find(id);
 
     if (iter == workers.end())
         return workerEngine->nullValue();
 
     WorkerScript *script = *iter;
     if (!script->initialized) {
 
         script->initialized = true;
         script->object = workerEngine->newObject();
 
         QScriptValue api = workerEngine->newObject();
         api.setData(script->id);
 
         api.setProperty(QLatin1String("onMessage"), workerEngine->newFunction(onMessage),
                         QScriptValue::PropertyGetter | QScriptValue::PropertySetter);
         api.setProperty(QLatin1String("sendMessage"), workerEngine->newFunction(sendMessage));
 
         script->object.setProperty(QLatin1String("WorkerScript"), api);
     }
 
     return script->object;
 }

◆ onMessage()

QScriptValue QDeclarativeWorkerScriptEnginePrivate::onMessage	(	QScriptContext *	ctxt,
		QScriptEngine *	engine
	)

static

Definition at line 199 of file qdeclarativeworkerscript.cpp.

Referenced by getWorker().

 {
     QDeclarativeWorkerScriptEnginePrivate *p = QDeclarativeWorkerScriptEnginePrivate::get(engine);
 
     int id = ctxt->thisObject().data().toVariant().toInt();
 
     WorkerScript *script = p->workers.value(id);
     if (!script)
         return engine->undefinedValue();
 
     if (ctxt->argumentCount() >= 1) 
         script->callback = ctxt->argument(0);
 
     return script->callback;
 }

◆ processLoad()

void QDeclarativeWorkerScriptEnginePrivate::processLoad	(	int	id,
		const QUrl &	url
	)

private

Definition at line 300 of file qdeclarativeworkerscript.cpp.

Referenced by event().

 {
     if (url.isRelative())
         return;
 
     QString fileName = QDeclarativeEnginePrivate::urlToLocalFileOrQrc(url);
 
     QFile f(fileName);
     if (f.open(QIODevice::ReadOnly)) {
         QByteArray data = f.readAll();
         QString sourceCode = QString::fromUtf8(data);
 
         QScriptValue activation = getWorker(id);
 
         QScriptContext *ctxt = QScriptDeclarativeClass::pushCleanContext(workerEngine);
         QScriptValue urlContext = workerEngine->newObject();
         urlContext.setData(QScriptValue(workerEngine, url.toString()));
         ctxt->pushScope(urlContext);
         ctxt->pushScope(activation);
         ctxt->setActivationObject(activation);
         QDeclarativeScriptParser::extractPragmas(sourceCode);
 
         workerEngine->baseUrl = url;
         workerEngine->evaluate(sourceCode);
 
         WorkerScript *script = workers.value(id);
         if (script) {
             script->source = url;
             if (workerEngine->hasUncaughtException()) {
                 reportScriptException(script);
                 workerEngine->clearExceptions();
             }
         }
 
         workerEngine->popContext();
     } else {
         qWarning().nospace() << "WorkerScript: Cannot find source file " << url.toString();
     }
 }

◆ processMessage()

void QDeclarativeWorkerScriptEnginePrivate::processMessage	(	int	id,
		const QVariant &	data
	)

private

Definition at line 281 of file qdeclarativeworkerscript.cpp.

Referenced by event().

 {
     WorkerScript *script = workers.value(id);
     if (!script)
         return;
 
     if (script->callback.isFunction()) {
         QScriptValue args = workerEngine->newArray(1);
         args.setProperty(0, variantToScriptValue(data, workerEngine));
 
         script->callback.call(script->object, args);
 
         if (workerEngine->hasUncaughtException()) {
             reportScriptException(script);
             workerEngine->clearExceptions();
         }
     }
 }

◆ reportScriptException()

void QDeclarativeWorkerScriptEnginePrivate::reportScriptException ( WorkerScript * script )

private

Definition at line 340 of file qdeclarativeworkerscript.cpp.

Referenced by processLoad(), and processMessage().

 {
     if (!script || !workerEngine->hasUncaughtException())
         return;
 
     QDeclarativeError error;
     QDeclarativeExpressionPrivate::exceptionToError(workerEngine, error);
     error.setUrl(script->source);
 
     QDeclarativeWorkerScriptEnginePrivate *p = QDeclarativeWorkerScriptEnginePrivate::get(workerEngine);
 
     QMutexLocker(&p->m_lock);
     if (script->owner)
         QCoreApplication::postEvent(script->owner, new WorkerErrorEvent(error));
 }

◆ scriptValueToVariant()

QVariant QDeclarativeWorkerScriptEnginePrivate::scriptValueToVariant ( const QScriptValue & value )

static

Definition at line 356 of file qdeclarativeworkerscript.cpp.

Referenced by QDeclarativeWorkerScript::sendMessage(), and sendMessage().

 {
     if (value.isBool()) {
         return QVariant(value.toBool());
     } else if (value.isString()) {
         return QVariant(value.toString());
     } else if (value.isNumber()) {
         return QVariant((qreal)value.toNumber());
     } else if (value.isDate()) {
         return QVariant(value.toDateTime());
 #ifndef QT_NO_REGEXP
     } else if (value.isRegExp()) {
         return QVariant(value.toRegExp());
 #endif
     } else if (value.isArray()) {
         QVariantList list;
 
         quint32 length = (quint32)value.property(QLatin1String("length")).toNumber();
 
         for (quint32 ii = 0; ii < length; ++ii) {
             QVariant v = scriptValueToVariant(value.property(ii));
             list << v;
         }
 
         return QVariant(list);
     } else if (value.isQObject()) {
         QDeclarativeListModel *lm = qobject_cast<QDeclarativeListModel *>(value.toQObject());
         if (lm) {
             QDeclarativeListModelWorkerAgent *agent = lm->agent();
             if (agent) {
                 QDeclarativeListModelWorkerAgent::VariantRef v(agent);
                 return QVariant::fromValue(v);
             } else {
                 return QVariant();
             }
         } else {
             // No other QObject's are allowed to be sent
             return QVariant();
         }
     } else if (value.isObject()) {
         QVariantHash hash;
 
         QScriptValueIterator iter(value);
 
         while (iter.hasNext()) {
             iter.next();
             hash.insert(iter.name(), scriptValueToVariant(iter.value()));
         }
 
         return QVariant(hash);
     }
 
     return QVariant();
 
 }

◆ sendMessage()

QScriptValue QDeclarativeWorkerScriptEnginePrivate::sendMessage	(	QScriptContext *	ctxt,
		QScriptEngine *	engine
	)

static

Definition at line 215 of file qdeclarativeworkerscript.cpp.

Referenced by getWorker().

 {
     if (!ctxt->argumentCount())
         return engine->undefinedValue();
 
     QDeclarativeWorkerScriptEnginePrivate *p = QDeclarativeWorkerScriptEnginePrivate::get(engine);
 
     int id = ctxt->thisObject().data().toVariant().toInt();
 
     WorkerScript *script = p->workers.value(id);
     if (!script)
         return engine->undefinedValue();
 
     QMutexLocker(&p->m_lock);
 
     if (script->owner)
         QCoreApplication::postEvent(script->owner,
                                     new WorkerDataEvent(0, scriptValueToVariant(ctxt->argument(0))));
 
     return engine->undefinedValue();
 }

◆ stopThread

void QDeclarativeWorkerScriptEnginePrivate::stopThread ( )

signal

Referenced by event().

◆ variantToScriptValue()

QScriptValue QDeclarativeWorkerScriptEnginePrivate::variantToScriptValue	(	const QVariant &	value,
		QScriptEngine *	engine
	)

static

Definition at line 412 of file qdeclarativeworkerscript.cpp.

Referenced by QDeclarativeWorkerScript::event(), and processMessage().

 {
     if (value.userType() == QVariant::Bool) {
         return QScriptValue(value.toBool());
     } else if (value.userType() == QVariant::String) {
         return QScriptValue(value.toString());
     } else if (value.userType() == QMetaType::QReal) {
         return QScriptValue(value.toReal());
     } else if (value.userType() == QVariant::DateTime) {
         return engine->newDate(value.toDateTime());
 #ifndef QT_NO_REGEXP
     } else if (value.userType() == QVariant::RegExp) {
         return engine->newRegExp(value.toRegExp());
 #endif
     } else if (value.userType() == qMetaTypeId<QDeclarativeListModelWorkerAgent::VariantRef>()) {
         QDeclarativeListModelWorkerAgent::VariantRef vr = qvariant_cast<QDeclarativeListModelWorkerAgent::VariantRef>(value);
         if (vr.a->scriptEngine() == 0)
             vr.a->setScriptEngine(engine);
         else if (vr.a->scriptEngine() != engine)
             return engine->nullValue();
         QScriptValue o = engine->newQObject(vr.a);
         o.setData(engine->newVariant(value)); // Keeps the agent ref so that it is cleaned up on gc
         return o;
     } else if (value.userType() == QMetaType::QVariantList) {
         QVariantList list = qvariant_cast<QVariantList>(value);
         QScriptValue rv = engine->newArray(list.count());
 
         for (quint32 ii = 0; ii < quint32(list.count()); ++ii)
             rv.setProperty(ii, variantToScriptValue(list.at(ii), engine));
 
         return rv;
     } else if (value.userType() == QMetaType::QVariantHash) {
 
         QVariantHash hash = qvariant_cast<QVariantHash>(value);
 
         QScriptValue rv = engine->newObject();
 
         for (QVariantHash::ConstIterator iter = hash.begin(); iter != hash.end(); ++iter)
             rv.setProperty(iter.key(), variantToScriptValue(iter.value(), engine));
 
         return rv;
     } else {
         return engine->nullValue();
     }
 }