1 files changed, 340 insertions, 0 deletions
diff --git a/src/declarative/qml/qmlvmemetaobject.cpp b/src/declarative/qml/qmlvmemetaobject.cpp
new file mode 100644
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--- /dev/null
+++ b/src/declarative/qml/qmlvmemetaobject.cpp
@@ -0,0 +1,340 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmlvmemetaobject_p.h"
+
+#include "qml.h"
+#include "qmlrefcount_p.h"
+#include "qmlexpression.h"
+#include "qmlexpression_p.h"
+#include "qmlcontext_p.h"
+
+#include <QColor>
+#include <QDate>
+#include <QtCore/qlist.h>
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+QmlVMEMetaObject::QmlVMEMetaObject(QObject *obj,
+                                   const QMetaObject *other, 
+                                   const QmlVMEMetaData *meta,
+                                   QmlCompiledData *cdata)
+: object(obj), compiledData(cdata), ctxt(qmlContext(obj)), metaData(meta), methods(0),
+  parent(0)
+{
+    compiledData->addref();
+
+    *static_cast<QMetaObject *>(this) = *other;
+    this->d.superdata = obj->metaObject();
+
+    QObjectPrivate *op = QObjectPrivate::get(obj);
+    if (op->metaObject)
+        parent = static_cast<QAbstractDynamicMetaObject*>(op->metaObject);
+    op->metaObject = this;
+
+    propOffset = QAbstractDynamicMetaObject::propertyOffset();
+    methodOffset = QAbstractDynamicMetaObject::methodOffset();
+
+    data = new QVariant[metaData->propertyCount];
+    aConnected.resize(metaData->aliasCount);
+
+    int list_type = qMetaTypeId<QmlList<QObject*>* >();
+    // ### Optimize
+    for (int ii = 0; ii < metaData->propertyCount; ++ii) {
+        int t = (metaData->propertyData() + ii)->propertyType;
+        if (t == list_type) {
+            listProperties.append(new List(this, ii));
+            data[ii] = QVariant::fromValue((QmlList<QObject *>*)listProperties.last());
+        } else if (t != -1) {
+            data[ii] = QVariant((QVariant::Type)t);
+        }
+    }
+}
+
+QmlVMEMetaObject::~QmlVMEMetaObject()
+{
+    compiledData->release();
+    delete parent;
+    qDeleteAll(listProperties);
+    delete [] data;
+    delete [] methods;
+}
+
+int QmlVMEMetaObject::metaCall(QMetaObject::Call c, int _id, void **a)
+{
+    int id = _id;
+    if(c == QMetaObject::WriteProperty) {
+        int flags = *reinterpret_cast<int*>(a[3]);
+        if (!(flags & QmlMetaProperty::BypassInterceptor)
+            && !aInterceptors.isEmpty()
+            && aInterceptors.testBit(id)) {
+            QPair<int, QmlPropertyValueInterceptor*> pair = interceptors.value(id);
+            int valueIndex = pair.first;
+            QmlPropertyValueInterceptor *vi = pair.second;
+            int type = property(id).userType();
+
+            if (type != QVariant::Invalid) {
+                if (valueIndex != -1) {
+                    QmlEnginePrivate *ep = ctxt?QmlEnginePrivate::get(ctxt->engine()):0;
+                    QmlValueType *valueType = 0;
+                    if (ep) valueType = ep->valueTypes[type];
+                    else valueType = QmlValueTypeFactory::valueType(type);
+                    Q_ASSERT(valueType);
+
+                    valueType->setValue(QVariant(type, a[0]));
+                    QMetaProperty valueProp = valueType->metaObject()->property(valueIndex);
+                    vi->write(valueProp.read(valueType));
+
+                    if (!ep) delete valueType;
+                    return -1;
+                } else {
+                    vi->write(QVariant(type, a[0]));
+                    return -1;
+                }
+            }
+        }
+    }
+    if(c == QMetaObject::ReadProperty || c == QMetaObject::WriteProperty) {
+        if (id >= propOffset) {
+            id -= propOffset;
+
+            if (id < metaData->propertyCount) {
+                int t = (metaData->propertyData() + id)->propertyType;
+                bool needActivate = false;
+
+                if (t == -1) {
+
+                    if (c == QMetaObject::ReadProperty) {
+                        *reinterpret_cast<QVariant *>(a[0]) = data[id];
+                    } else if (c == QMetaObject::WriteProperty) {
+                        needActivate = 
+                            (data[id] != *reinterpret_cast<QVariant *>(a[0]));
+                        data[id] = *reinterpret_cast<QVariant *>(a[0]);
+                    }
+
+                } else {
+
+                    if (c == QMetaObject::ReadProperty) {
+                        switch(t) {
+                        case QVariant::Int:
+                            *reinterpret_cast<int *>(a[0]) = data[id].toInt();
+                            break;
+                        case QVariant::Bool:
+                            *reinterpret_cast<bool *>(a[0]) = data[id].toBool();
+                            break;
+                        case QVariant::Double:
+                            *reinterpret_cast<double *>(a[0]) = data[id].toDouble();
+                            break;
+                        case QVariant::String:
+                            *reinterpret_cast<QString *>(a[0]) = data[id].toString();
+                            break;
+                        case QVariant::Url:
+                            *reinterpret_cast<QUrl *>(a[0]) = data[id].toUrl();
+                            break;
+                        case QVariant::Color:
+                            *reinterpret_cast<QColor *>(a[0]) = data[id].value<QColor>();
+                            break;
+                        case QVariant::Date:
+                            *reinterpret_cast<QDate *>(a[0]) = data[id].toDate();
+                            break;
+                        case QMetaType::QObjectStar:
+                            *reinterpret_cast<QObject **>(a[0]) = data[id].value<QObject*>();
+                            break;
+                        default:
+                            break;
+                        }
+                        if (t == qMetaTypeId<QmlList<QObject*>* >()) {
+                            *reinterpret_cast<QmlList<QObject *> **>(a[0]) = data[id].value<QmlList<QObject*>*>();
+                        }
+
+                    } else if (c == QMetaObject::WriteProperty) {
+
+                        QVariant value = QVariant((QVariant::Type)data[id].type(), a[0]); 
+                        needActivate = (data[id] != value);
+                        data[id] = value;
+                    }
+
+                }
+
+                if (c == QMetaObject::WriteProperty && needActivate) {
+                    activate(object, methodOffset + id, 0);
+                }
+
+                return -1;
+            }
+
+            id -= metaData->propertyCount;
+
+            if (id < metaData->aliasCount) {
+
+                QmlVMEMetaData::AliasData *d = metaData->aliasData() + id;
+
+                if (d->flags & QML_ALIAS_FLAG_PTR && c == QMetaObject::ReadProperty) 
+                        *reinterpret_cast<void **>(a[0]) = 0;
+
+                if (!ctxt) return -1;
+                QmlContextPrivate *ctxtPriv = 
+                    (QmlContextPrivate *)QObjectPrivate::get(ctxt);
+
+                QObject *target = ctxtPriv->idValues[d->contextIdx].data();
+                if (!target) 
+                    return -1;
+
+                if (c == QMetaObject::ReadProperty && !aConnected.testBit(id)) {
+                    int sigIdx = methodOffset + id + metaData->propertyCount;
+                    QMetaObject::connect(ctxt, d->contextIdx + ctxtPriv->notifyIndex, object, sigIdx);
+
+                    if (d->propertyIdx != -1) {
+                        QMetaProperty prop = 
+                            target->metaObject()->property(d->propertyIdx);
+                        if (prop.hasNotifySignal())
+                            QMetaObject::connect(target, prop.notifySignalIndex(), 
+                                                 object, sigIdx);
+                    }
+                    aConnected.setBit(id);
+                }
+
+                if (d->propertyIdx == -1) {
+                    *reinterpret_cast<QObject **>(a[0]) = target;
+                    return -1;
+                } else {
+                    return QMetaObject::metacall(target, c, d->propertyIdx, a);
+                }
+
+            }
+            return -1;
+
+        }
+
+    } else if(c == QMetaObject::InvokeMetaMethod) {
+
+        if (id >= methodOffset) {
+
+            id -= methodOffset;
+            int plainSignals = metaData->signalCount + metaData->propertyCount +
+                               metaData->aliasCount;
+            if (id < plainSignals) {
+                QMetaObject::activate(object, _id, a);
+                return -1;
+            }
+
+            id -= plainSignals;
+
+            if (id < metaData->methodCount) {
+                if (!ctxt->engine())
+                    return -1; // We can't run the method
+
+                QmlEnginePrivate *ep = QmlEnginePrivate::get(ctxt->engine());
+
+                QScriptValue function = method(id);
+
+                QScriptValueList args;
+                QmlVMEMetaData::MethodData *data = metaData->methodData() + id;
+                if (data->parameterCount) {
+                    for (int ii = 0; ii < data->parameterCount; ++ii) {
+                        args << ep->scriptValueFromVariant(*(QVariant *)a[ii + 1]);
+                    }
+                }
+                QScriptValue rv = function.call(ep->objectClass->newQObject(object), args);
+
+                if (a[0]) *reinterpret_cast<QVariant *>(a[0]) = ep->scriptValueToVariant(rv);
+
+                return -1;
+            }
+            return -1;
+        }
+    }
+
+    if (parent)
+        return parent->metaCall(c, _id, a);
+    else
+        return object->qt_metacall(c, _id, a);
+}
+
+QScriptValue QmlVMEMetaObject::method(int index)
+{
+    if (!methods) 
+        methods = new QScriptValue[metaData->methodCount];
+
+    if (!methods[index].isValid()) {
+        QmlVMEMetaData::MethodData *data = metaData->methodData() + index;
+
+        const QChar *body = 
+            (const QChar *)(((const char*)metaData) + data->bodyOffset);
+
+        QString code = QString::fromRawData(body, data->bodyLength);
+
+        // XXX Use QScriptProgram
+        // XXX We should evaluate all methods in a single big script block to 
+        // improve the call time between dynamic methods defined on the same
+        // object
+        methods[index] = QmlExpressionPrivate::evalInObjectScope(ctxt, object, code);
+    }
+
+    return methods[index];
+}
+
+void QmlVMEMetaObject::listChanged(int id)
+{
+    activate(object, methodOffset + id, 0);
+}
+
+void QmlVMEMetaObject::registerInterceptor(int index, int valueIndex, QmlPropertyValueInterceptor *interceptor)
+{
+    if (aInterceptors.isEmpty())
+        aInterceptors.resize(propertyCount() + metaData->propertyCount);
+    aInterceptors.setBit(index);
+    interceptors.insert(index, qMakePair(valueIndex, interceptor));
+}
+
+QScriptValue QmlVMEMetaObject::vmeMethod(int index)
+{
+    if (index < methodOffset) {
+        Q_ASSERT(parent);
+        return static_cast<QmlVMEMetaObject *>(parent)->vmeMethod(index);
+    }
+    int plainSignals = metaData->signalCount + metaData->propertyCount + metaData->aliasCount;
+    Q_ASSERT(index >= (methodOffset + plainSignals) && index < (methodOffset + plainSignals + metaData->methodCount));
+    return method(index - methodOffset - plainSignals);
+}
+
+QT_END_NAMESPACE