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/****************************************************************************
**
** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** 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 Digia. For licensing terms and
** conditions see http://www.qt.io/licensing. 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
****************************************************************************/
#include "bindingproperty.h"
#include "nodeproperty.h"
#include "internalproperty.h"
#include "invalidmodelnodeexception.h"
#include "invalidpropertyexception.h"
#include "invalidargumentexception.h"
#include "internalnode_p.h"
#include "model.h"
#include "model_p.h"
namespace QmlDesigner {
BindingProperty::BindingProperty()
{
}
BindingProperty::BindingProperty(const BindingProperty &property, AbstractView *view)
: AbstractProperty(property.name(), property.internalNode(), property.model(), view)
{
}
BindingProperty::BindingProperty(const PropertyName &propertyName, const Internal::InternalNodePointer &internalNode, Model* model, AbstractView *view)
: AbstractProperty(propertyName, internalNode, model, view)
{
}
void BindingProperty::setExpression(const QString &expression)
{
Internal::WriteLocker locker(model());
if (!isValid())
throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__);
if (isDynamic())
qWarning() << "Calling BindingProperty::setExpression on dynamic property.";
if (name() == "id") { // the ID for a node is independent of the state, so it has to be set with ModelNode::setId
throw InvalidPropertyException(__LINE__, __FUNCTION__, __FILE__, name());
}
if (expression.isEmpty())
throw InvalidArgumentException(__LINE__, __FUNCTION__, __FILE__, name());
if (internalNode()->hasProperty(name())) { //check if oldValue != value
Internal::InternalProperty::Pointer internalProperty = internalNode()->property(name());
if (internalProperty->isBindingProperty()
&& internalProperty->toBindingProperty()->expression() == expression)
return;
}
if (internalNode()->hasProperty(name()) && !internalNode()->property(name())->isBindingProperty())
model()->d->removeProperty(internalNode()->property(name()));
model()->d->setBindingProperty(internalNode(), name(), expression);
}
QString BindingProperty::expression() const
{
if (internalNode()->hasProperty(name())
&& internalNode()->property(name())->isBindingProperty())
return internalNode()->bindingProperty(name())->expression();
return QString();
}
static ModelNode resolveBinding(const QString &binding, ModelNode currentNode, AbstractView* view)
{
int index = 0;
QString element = binding.split(QLatin1Char('.')).at(0);
while (!element.isEmpty())
{
if (currentNode.isValid()) {
if (element == "parent") {
if (currentNode.hasParentProperty())
currentNode = currentNode.parentProperty().toNodeAbstractProperty().parentModelNode();
else
return ModelNode(); //binding not valid
} else if (currentNode.hasProperty(element.toUtf8())) {
if (currentNode.property(element.toUtf8()).isNodeProperty())
currentNode = currentNode.nodeProperty(element.toUtf8()).modelNode();
else if (view->hasId(element))
currentNode = view->modelNodeForId(element); //id
else
return ModelNode(); //binding not valid
} else {
currentNode = view->modelNodeForId(element); //id
}
index++;
if (index < binding.split(QLatin1Char('.')).count())
element = binding.split(QLatin1Char('.')).at(index);
else
element.clear();
} else {
return ModelNode();
}
}
return currentNode;
}
ModelNode BindingProperty::resolveToModelNode() const
{
if (!isValid())
throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__);
return resolveBinding(expression(), parentModelNode(), view());
}
static inline QStringList commaSeparatedSimplifiedStringList(const QString &string)
{
QStringList stringList = string.split(QStringLiteral(","));
QStringList simpleList;
foreach (const QString &simpleString, stringList)
simpleList.append(simpleString.simplified());
return simpleList;
}
AbstractProperty BindingProperty::resolveToProperty() const
{
if (!isValid())
throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__);
QString binding = expression();
ModelNode node = parentModelNode();
QString element;
if (binding.contains(QLatin1Char('.'))) {
element = binding.split(QLatin1Char('.')).last();
QString nodeBinding = binding;
nodeBinding.chop(element.length());
node = resolveBinding(nodeBinding, parentModelNode(), view());
} else {
element = binding;
}
if (node.isValid())
return node.property(element.toUtf8());
else
return AbstractProperty();
}
bool BindingProperty::isList() const
{
if (!isValid())
throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__);
return expression().startsWith('[') && expression().endsWith(']');
}
QList<ModelNode> BindingProperty::resolveToModelNodeList() const
{
QList<ModelNode> returnList;
if (!isValid())
throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__);
if (isList()) {
QString string = expression();
string.chop(1);
string.remove(0, 1);
QStringList simplifiedList = commaSeparatedSimplifiedStringList(string);
foreach (const QString &nodeId, simplifiedList) {
if (view()->hasId(nodeId))
returnList.append(view()->modelNodeForId(nodeId));
}
}
return returnList;
}
void BindingProperty::setDynamicTypeNameAndExpression(const TypeName &typeName, const QString &expression)
{
Internal::WriteLocker locker(model());
if (!isValid())
throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__);
if (name() == "id") { // the ID for a node is independent of the state, so it has to be set with ModelNode::setId
throw InvalidPropertyException(__LINE__, __FUNCTION__, __FILE__, name());
}
if (expression.isEmpty())
throw InvalidArgumentException(__LINE__, __FUNCTION__, __FILE__, name());
if (typeName.isEmpty())
throw InvalidArgumentException(__LINE__, __FUNCTION__, __FILE__, name());
if (internalNode()->hasProperty(name())) { //check if oldValue != value
Internal::InternalProperty::Pointer internalProperty = internalNode()->property(name());
if (internalProperty->isBindingProperty()
&& internalProperty->toBindingProperty()->expression() == expression
&& internalProperty->toBindingProperty()->dynamicTypeName() == typeName)
return;
}
if (internalNode()->hasProperty(name()) && !internalNode()->property(name())->isBindingProperty())
model()->d->removeProperty(internalNode()->property(name()));
model()->d->setDynamicBindingProperty(internalNode(), name(), typeName, expression);
}
} // namespace QmlDesigner
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