QmlPuppet: Introduce DesignerCustomObjectData

This class holds the additional data we use to annotate QObject.
At the moment we store the default values and bindings there.
I also moved the code to populate and read the hashes
into that class.

Change-Id: Ib5e4b5291cfd2bf5555a896bf42578d07f2c6253
Reviewed-by: Tim Jenssen <tim.jenssen@theqtcompany.com>

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/objectnodeinstance.cpp

@@ -529,68 +529,14 @@ void ObjectNodeInstance::refreshProperty(const PropertyName &name)
     property.write(oldValue);
 }
 
-bool ObjectNodeInstance::hasBindingForProperty(const PropertyName &name, bool *hasChanged) const
+bool ObjectNodeInstance::hasBindingForProperty(const PropertyName &propertyName, bool *hasChanged) const
 {
-    if (QmlPrivateGate::isPropertyBlackListed(name))
-        return false;
-
-    QQmlProperty property(object(), name, context());
-
-    bool hasBinding = QQmlPropertyPrivate::binding(property);
-
-    if (hasChanged) {
-        *hasChanged = hasBinding != m_hasBindingHash.value(name, false);
-        if (*hasChanged)
-            m_hasBindingHash.insert(name, hasBinding);
-    }
-
-    return QQmlPropertyPrivate::binding(property);
+    return QmlPrivateGate::hasBindingForProperty(object(), propertyName, hasChanged);
 }
 
 void ObjectNodeInstance::doResetProperty(const PropertyName &propertyName)
 {
-    QQmlProperty property(object(), propertyName, context());
-
-    if (!property.isValid())
-        return;
-
-    QVariant oldValue = property.read();
-    if (oldValue.type() == QVariant::Url) {
-        QUrl url = oldValue.toUrl();
-        QString path = url.toLocalFile();
-        if (QFileInfo(path).exists() && nodeInstanceServer())
-            nodeInstanceServer()->removeFilePropertyFromFileSystemWatcher(object(), propertyName, path);
-    }
-
-
-    QQmlAbstractBinding *binding = QQmlPropertyPrivate::binding(property);
-    if (binding && !(hasValidResetBinding(propertyName) && resetBinding(propertyName) == binding)) {
-        binding->setEnabled(false, 0);
-        binding->destroy();
-    }
-
-
-    if (hasValidResetBinding(propertyName)) {
-        QQmlAbstractBinding *binding = resetBinding(propertyName);
-        QQmlPropertyPrivate::setBinding(property, binding, QQmlPropertyPrivate::DontRemoveBinding);
-        binding->update();
-    } else if (property.isResettable()) {
-        property.reset();
-    } else if (property.propertyTypeCategory() == QQmlProperty::List) {
-        QQmlListReference list = qvariant_cast<QQmlListReference>(property.read());
-
-        if (!QmlPrivateGate::hasFullImplementedListInterface(list)) {
-            qWarning() << "Property list interface not fully implemented for Class " << property.property().typeName() << " in property " << property.name() << "!";
-            return;
-        }
-
-        list.clear();
-    } else if (property.isWritable()) {
-        if (property.read() == resetValue(propertyName))
-            return;
-
-        property.write(resetValue(propertyName));
-    }
+    QmlPrivateGate::doResetProperty(object(), propertyName);
 }
 
 QVariant ObjectNodeInstance::property(const PropertyName &name) const
@@ -860,38 +806,17 @@ void ObjectNodeInstance::deactivateState()
 
 void ObjectNodeInstance::populateResetHashes()
 {
-    PropertyNameList propertyNameList = QmlPrivateGate::propertyNameListForWritableProperties(object());
-
-    foreach (const PropertyName &propertyName, propertyNameList) {
-        QQmlProperty property(object(), propertyName, QQmlEngine::contextForObject(object()));
-
-        QQmlAbstractBinding::Pointer binding = QQmlAbstractBinding::getPointer(QQmlPropertyPrivate::binding(property));
-        if (binding) {
-            m_resetBindingHash.insert(propertyName, binding);
-        } else if (property.isWritable()) {
-            m_resetValueHash.insert(propertyName, property.read());
-        }
-    }
-
-    m_resetValueHash.insert("Layout.rowSpan", 1);
-    m_resetValueHash.insert("Layout.columnSpan", 1);
-    m_resetValueHash.insert("Layout.fillHeight", false);
-    m_resetValueHash.insert("Layout.fillWidth", false);
-}
-
-QQmlAbstractBinding *ObjectNodeInstance::resetBinding(const PropertyName &propertyName) const
-{
-    return m_resetBindingHash.value(propertyName).data();
+    QmlPrivateGate::registerCustomData(object(), context());
 }
 
 bool ObjectNodeInstance::hasValidResetBinding(const PropertyName &propertyName) const
 {
-    return m_resetBindingHash.contains(propertyName) &&  m_resetBindingHash.value(propertyName).data();
+    return QmlPrivateGate::hasValidResetBinding(object(), propertyName);
 }
 
 QVariant ObjectNodeInstance::resetValue(const PropertyName &propertyName) const
 {
-    return m_resetValueHash.value(propertyName);
+    return QmlPrivateGate::getResetValue(object(), propertyName);
 }
 
 QImage ObjectNodeInstance::renderImage() const

share/qtcreator/qml/qmlpuppet/qml2puppet/instances/objectnodeinstance.h

@@ -150,7 +150,6 @@ public:
 
     void populateResetHashes();
     bool hasValidResetBinding(const PropertyName &propertyName) const;
-    QQmlAbstractBinding *resetBinding(const PropertyName &propertyName) const;
     QVariant resetValue(const PropertyName &propertyName) const;
 
     QObject *object() const;
@@ -163,7 +162,7 @@ public:
     void setInLayoutable(bool isInLayoutable);
     virtual void refreshLayoutable();
 
-    bool hasBindingForProperty(const PropertyName &name, bool *hasChanged = 0) const;
+    bool hasBindingForProperty(const PropertyName &propertyName, bool *hasChanged = 0) const;
 
     QQmlContext *context() const;
     QQmlEngine *engine() const;
@@ -199,9 +198,6 @@ protected:
     static QVariant enumationValue(const Enumeration &enumeration);
 
 private:
-    QHash<PropertyName, QVariant> m_resetValueHash;
-    QHash<PropertyName, QWeakPointer<QQmlAbstractBinding> > m_resetBindingHash;
-    mutable QHash<PropertyName, bool> m_hasBindingHash;
     QString m_id;
 
     QPointer<NodeInstanceServer> m_nodeInstanceServer;

share/qtcreator/qml/qmlpuppet/qmlprivategate/designercustomobjectdata.cpp

@@ -0,0 +1,225 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.  For licensing terms and
+** conditions see http://www.qt.io/terms-conditions.  For further information
+** use the contact form at http://www.qt.io/contact-us.
+**
+** 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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, The Qt Company gives you certain additional
+** rights.  These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "designercustomobjectdata.h"
+
+#include <qmlprivategate.h>
+
+#include <QQmlContext>
+#include <QQmlEngine>
+
+#include <private/qqmlbinding_p.h>
+
+namespace QmlDesigner {
+
+namespace Internal {
+
+namespace QmlPrivateGate {
+
+QHash<QObject *, DesignerCustomObjectData*> m_objectToDataHash;
+
+DesignerCustomObjectData::DesignerCustomObjectData(QObject *object, QQmlContext *context)
+    : m_object(object)
+    , m_context(context)
+{
+    if (object)
+        populateResetHashes();
+        m_objectToDataHash.insert(object, this);
+        QObject::connect(object, &QObject::destroyed, [=] {
+            m_objectToDataHash.remove(object);
+            delete this;
+        });
+}
+
+void DesignerCustomObjectData::registerData(QObject *object, QQmlContext *context)
+{
+    new DesignerCustomObjectData(object, context);
+}
+
+DesignerCustomObjectData *DesignerCustomObjectData::get(QObject *object)
+{
+    return m_objectToDataHash.value(object);
+}
+
+QVariant DesignerCustomObjectData::getResetValue(QObject *object, const PropertyName &propertyName)
+{
+    DesignerCustomObjectData* data = get(object);
+
+    if (data)
+        return data->getResetValue(propertyName);
+
+    return QVariant();
+}
+
+void DesignerCustomObjectData::doResetProperty(QObject *object, const PropertyName &propertyName)
+{
+    DesignerCustomObjectData* data = get(object);
+
+    if (data)
+        data->doResetProperty(propertyName);
+}
+
+bool DesignerCustomObjectData::hasValidResetBinding(QObject *object, const PropertyName &propertyName)
+{
+    DesignerCustomObjectData* data = get(object);
+
+    if (data)
+        return data->hasValidResetBinding(propertyName);
+
+    return false;
+}
+
+bool DesignerCustomObjectData::hasBindingForProperty(QObject *object, const PropertyName &propertyName, bool *hasChanged)
+{
+    DesignerCustomObjectData* data = get(object);
+
+    if (data)
+        return data->hasBindingForProperty(propertyName, hasChanged);
+
+    return false;
+}
+
+void DesignerCustomObjectData::populateResetHashes()
+{
+    PropertyNameList propertyNameList = QmlPrivateGate::propertyNameListForWritableProperties(object());
+
+    foreach (const PropertyName &propertyName, propertyNameList) {
+        QQmlProperty property(object(), propertyName, QQmlEngine::contextForObject(object()));
+
+        QQmlAbstractBinding::Pointer binding = QQmlAbstractBinding::getPointer(QQmlPropertyPrivate::binding(property));
+        if (binding) {
+            m_resetBindingHash.insert(propertyName, binding);
+        } else if (property.isWritable()) {
+            m_resetValueHash.insert(propertyName, property.read());
+        }
+    }
+
+    m_resetValueHash.insert("Layout.rowSpan", 1);
+    m_resetValueHash.insert("Layout.columnSpan", 1);
+    m_resetValueHash.insert("Layout.fillHeight", false);
+    m_resetValueHash.insert("Layout.fillWidth", false);
+}
+
+QQmlContext *DesignerCustomObjectData::context() const
+{
+    return m_context;
+}
+
+QObject *DesignerCustomObjectData::object() const
+{
+    return m_object;
+}
+
+QVariant DesignerCustomObjectData::getResetValue(const PropertyName &propertyName) const
+{
+    return m_resetValueHash.value(propertyName);
+}
+
+void DesignerCustomObjectData::doResetProperty(const PropertyName &propertyName)
+{
+    QQmlProperty property(object(), propertyName, context());
+
+    if (!property.isValid())
+        return;
+
+    QVariant oldValue = property.read();
+    if (oldValue.type() == QVariant::Url) {
+        QUrl url = oldValue.toUrl();
+        QString path = url.toLocalFile();
+        /* ### TODO
+        if (QFileInfo(path).exists() && nodeInstanceServer())
+            nodeInstanceServer()->removeFilePropertyFromFileSystemWatcher(object(), propertyName, path);
+            */
+    }
+
+
+    QQmlAbstractBinding *binding = QQmlPropertyPrivate::binding(property);
+    if (binding && !(hasValidResetBinding(propertyName) && getResetBinding(propertyName) == binding)) {
+        binding->setEnabled(false, 0);
+        binding->destroy();
+    }
+
+
+    if (hasValidResetBinding(propertyName)) {
+        QQmlAbstractBinding *binding = getResetBinding(propertyName);
+        QQmlPropertyPrivate::setBinding(property, binding, QQmlPropertyPrivate::DontRemoveBinding);
+        binding->update();
+    } else if (property.isResettable()) {
+        property.reset();
+    } else if (property.propertyTypeCategory() == QQmlProperty::List) {
+        QQmlListReference list = qvariant_cast<QQmlListReference>(property.read());
+
+        if (!QmlPrivateGate::hasFullImplementedListInterface(list)) {
+            qWarning() << "Property list interface not fully implemented for Class " << property.property().typeName() << " in property " << property.name() << "!";
+            return;
+        }
+
+        list.clear();
+    } else if (property.isWritable()) {
+        if (property.read() == getResetValue(propertyName))
+            return;
+
+        property.write(getResetValue(propertyName));
+    }
+}
+
+bool DesignerCustomObjectData::hasValidResetBinding(const PropertyName &propertyName) const
+{
+    return m_resetBindingHash.contains(propertyName) &&  m_resetBindingHash.value(propertyName).data();
+}
+
+QQmlAbstractBinding *DesignerCustomObjectData::getResetBinding(const PropertyName &propertyName) const
+{
+    return m_resetBindingHash.value(propertyName).data();
+}
+
+bool DesignerCustomObjectData::hasBindingForProperty(const PropertyName &propertyName, bool *hasChanged) const
+{
+    if (QmlPrivateGate::isPropertyBlackListed(propertyName))
+        return false;
+
+    QQmlProperty property(object(), propertyName, context());
+
+    bool hasBinding = QQmlPropertyPrivate::binding(property);
+
+    if (hasChanged) {
+        *hasChanged = hasBinding != m_hasBindingHash.value(propertyName, false);
+        if (*hasChanged)
+            m_hasBindingHash.insert(propertyName, hasBinding);
+    }
+
+    return QQmlPropertyPrivate::binding(property);
+}
+
+
+} // namespace QmlPrivateGate
+} // namespace Internal
+} // namespace QmlDesigner
+

share/qtcreator/qml/qmlpuppet/qmlprivategate/designercustomobjectdata.h

@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company.  For licensing terms and
+** conditions see http://www.qt.io/terms-conditions.  For further information
+** use the contact form at http://www.qt.io/contact-us.
+**
+** 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 or version 3 as published by the Free
+** Software Foundation and appearing in the file LICENSE.LGPLv21 and
+** LICENSE.LGPLv3 included in the packaging of this file.  Please review the
+** following information to ensure the GNU Lesser General Public License
+** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, The Qt Company gives you certain additional
+** rights.  These rights are described in The Qt Company LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#ifndef DESIGNERCUSTOMOBJECTDATA_H
+#define DESIGNERCUSTOMOBJECTDATA_H
+
+#include "nodeinstanceglobal.h"
+
+#include <QHash>
+#include <QObject>
+#include <QVariant>
+
+QT_BEGIN_NAMESPACE
+class QQmlAbstractBinding;
+class QQmlContext;
+QT_END_NAMESPACE
+
+namespace QmlDesigner {
+
+namespace Internal {
+
+namespace QmlPrivateGate {
+
+class DesignerCustomObjectData
+{
+public:
+    static void registerData(QObject *object, QQmlContext *context);
+    static DesignerCustomObjectData *get(QObject *object);
+    static QVariant getResetValue(QObject *object, const PropertyName &propertyName);
+    static void doResetProperty(QObject *object, const PropertyName &propertyName);
+    static bool hasValidResetBinding(QObject *object, const PropertyName &propertyName);
+    static bool hasBindingForProperty(QObject *object, const PropertyName &propertyName, bool *hasChanged);
+
+private:
+    DesignerCustomObjectData(QObject *object, QQmlContext *context);
+    void populateResetHashes();
+    QObject *object() const;
+    QQmlContext *context() const;
+    QVariant getResetValue(const PropertyName &propertyName) const;
+    void doResetProperty(const PropertyName &propertyName);
+    bool hasValidResetBinding(const PropertyName &propertyName) const;
+    QQmlAbstractBinding *getResetBinding(const PropertyName &propertyName) const;
+    bool hasBindingForProperty(const PropertyName &propertyName, bool *hasChanged) const;
+
+    QObject *m_object;
+    QQmlContext *m_context;
+    QHash<PropertyName, QVariant> m_resetValueHash;
+    QHash<PropertyName, QWeakPointer<QQmlAbstractBinding> > m_resetBindingHash;
+    mutable QHash<PropertyName, bool> m_hasBindingHash;
+
+};
+
+} // namespace QmlPrivateGate
+} // namespace Internal
+} // namespace QmlDesigner
+
+#endif // DESIGNERCUSTOMOBJECTDATA_H

share/qtcreator/qml/qmlpuppet/qmlprivategate/qmlprivategate.cpp

@@ -31,6 +31,7 @@
 #include "qmlprivategate.h"
 
 #include "metaobject.h"
+#include "designercustomobjectdata.h"
 
 #include <objectnodeinstance.h>
 
@@ -446,6 +447,31 @@ bool hasFullImplementedListInterface(const QQmlListReference &list)
     return list.isValid() && list.canCount() && list.canAt() && list.canAppend() && list.canClear();
 }
 
+void registerCustomData(QObject *object, QQmlContext *context)
+{
+    DesignerCustomObjectData::registerData(object, context);
+}
+
+QVariant getResetValue(QObject *object, const PropertyName &propertyName)
+{
+    return DesignerCustomObjectData::getResetValue(object, propertyName);
+}
+
+void doResetProperty(QObject *object, const PropertyName &propertyName)
+{
+    DesignerCustomObjectData::doResetProperty(object, propertyName);
+}
+
+bool hasValidResetBinding(QObject *object, const PropertyName &propertyName)
+{
+    return DesignerCustomObjectData::hasValidResetBinding(object, propertyName);
+}
+
+bool hasBindingForProperty(QObject *object, const PropertyName &propertyName, bool *hasChanged)
+{
+    return DesignerCustomObjectData::hasBindingForProperty(object, propertyName, hasChanged);
+}
+
 ComponentCompleteDisabler::ComponentCompleteDisabler()
 {
     DesignerSupport::disableComponentComplete();

share/qtcreator/qml/qmlpuppet/qmlprivategate/qmlprivategate.h

@@ -35,6 +35,7 @@
 
 #include <QObject>
 #include <QString>
+#include <QVariant>
 #include <QQmlContext>
 #include <QQmlListReference>
 
@@ -78,6 +79,12 @@ public:
                                       QObjectList *inspectedObjects = 0);
     bool hasFullImplementedListInterface(const QQmlListReference &list);
 
+    void registerCustomData(QObject *object, QQmlContext *context);
+    QVariant getResetValue(QObject *object, const PropertyName &propertyName);
+    void doResetProperty(QObject *object, const PropertyName &propertyName);
+    bool hasValidResetBinding(QObject *object, const PropertyName &propertyName);
+    bool hasBindingForProperty(QObject *object, const PropertyName &propertyName, bool *hasChanged);
+
 } // namespace QmlPrivateGate
 } // namespace Internal
 } // namespace QmlDesigner

share/qtcreator/qml/qmlpuppet/qmlprivategate/qmlprivategate.pri

@@ -2,9 +2,11 @@ INCLUDEPATH += $$PWD/
 
 HEADERS += \
     $$PWD/qmlprivategate.h \
-    $$PWD/metaobject.h
+    $$PWD/metaobject.h \
+    $$PWD/designercustomobjectdata.h
 
 SOURCES += \
     $$PWD/qmlprivategate.cpp \
-    $$PWD/metaobject.cpp
+    $$PWD/metaobject.cpp \
+    $$PWD/designercustomobjectdata.cpp