forked from qt-creator/qt-creator
3cf5f29719
Change-Id: I520be5d188e637c222ba3e709f072e2881b20db9 Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>
295 lines
9.8 KiB
C++
295 lines
9.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#include "designercustomobjectdata.h"
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#include <qmlprivategate.h>
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#include <QQmlContext>
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#include <QQmlEngine>
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#include <private/qqmlbinding_p.h>
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namespace QmlDesigner {
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namespace Internal {
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namespace QmlPrivateGate {
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QHash<QObject *, DesignerCustomObjectData*> m_objectToDataHash;
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DesignerCustomObjectData::DesignerCustomObjectData(QObject *object)
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: m_object(object)
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{
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if (object)
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populateResetHashes();
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m_objectToDataHash.insert(object, this);
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QObject::connect(object, &QObject::destroyed, [=] {
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m_objectToDataHash.remove(object);
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delete this;
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});
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}
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void DesignerCustomObjectData::registerData(QObject *object)
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{
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new DesignerCustomObjectData(object);
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}
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DesignerCustomObjectData *DesignerCustomObjectData::get(QObject *object)
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{
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return m_objectToDataHash.value(object);
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}
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QVariant DesignerCustomObjectData::getResetValue(QObject *object, const PropertyName &propertyName)
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{
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DesignerCustomObjectData* data = get(object);
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if (data)
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return data->getResetValue(propertyName);
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return QVariant();
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}
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void DesignerCustomObjectData::doResetProperty(QObject *object, QQmlContext *context, const PropertyName &propertyName)
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{
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DesignerCustomObjectData* data = get(object);
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if (data)
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data->doResetProperty(context, propertyName);
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}
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bool DesignerCustomObjectData::hasValidResetBinding(QObject *object, const PropertyName &propertyName)
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{
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DesignerCustomObjectData* data = get(object);
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if (data)
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return data->hasValidResetBinding(propertyName);
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return false;
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}
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bool DesignerCustomObjectData::hasBindingForProperty(QObject *object, QQmlContext *context, const PropertyName &propertyName, bool *hasChanged)
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{
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DesignerCustomObjectData* data = get(object);
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if (data)
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return data->hasBindingForProperty(context, propertyName, hasChanged);
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return false;
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}
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void DesignerCustomObjectData::setPropertyBinding(QObject *object, QQmlContext *context, const PropertyName &propertyName, const QString &expression)
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{
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DesignerCustomObjectData* data = get(object);
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if (data)
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data->setPropertyBinding(context, propertyName, expression);
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}
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void DesignerCustomObjectData::keepBindingFromGettingDeleted(QObject *object, QQmlContext *context, const PropertyName &propertyName)
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{
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DesignerCustomObjectData* data = get(object);
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if (data)
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data->keepBindingFromGettingDeleted(context, propertyName);
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}
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void DesignerCustomObjectData::populateResetHashes()
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{
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PropertyNameList propertyNameList = QmlPrivateGate::propertyNameListForWritableProperties(object());
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foreach (const PropertyName &propertyName, propertyNameList) {
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QQmlProperty property(object(), QString::fromUtf8(propertyName), QQmlEngine::contextForObject(object()));
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
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QQmlAbstractBinding::Ptr binding = QQmlAbstractBinding::Ptr(QQmlPropertyPrivate::binding(property));
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#else
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QQmlAbstractBinding::Pointer binding = QQmlAbstractBinding::getPointer(QQmlPropertyPrivate::binding(property));
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#endif
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if (binding) {
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m_resetBindingHash.insert(propertyName, binding);
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} else if (property.isWritable()) {
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m_resetValueHash.insert(propertyName, property.read());
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}
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}
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m_resetValueHash.insert("Layout.rowSpan", 1);
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m_resetValueHash.insert("Layout.columnSpan", 1);
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m_resetValueHash.insert("Layout.fillHeight", false);
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m_resetValueHash.insert("Layout.fillWidth", false);
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}
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QObject *DesignerCustomObjectData::object() const
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{
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return m_object;
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}
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QVariant DesignerCustomObjectData::getResetValue(const PropertyName &propertyName) const
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{
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return m_resetValueHash.value(propertyName);
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}
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void DesignerCustomObjectData::doResetProperty(QQmlContext *context, const PropertyName &propertyName)
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{
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QQmlProperty property(object(), QString::fromUtf8(propertyName), context);
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if (!property.isValid())
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return;
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QVariant oldValue = property.read();
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if (oldValue.type() == QVariant::Url) {
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QUrl url = oldValue.toUrl();
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QString path = url.toLocalFile();
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/* ### TODO
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if (QFileInfo(path).exists() && nodeInstanceServer())
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nodeInstanceServer()->removeFilePropertyFromFileSystemWatcher(object(), propertyName, path);
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*/
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}
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QQmlAbstractBinding *binding = QQmlPropertyPrivate::binding(property);
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if (binding && !(hasValidResetBinding(propertyName) && getResetBinding(propertyName) == binding)) {
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binding->setEnabled(false, 0);
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
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//Refcounting is taking care
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#else
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binding->destroy();
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#endif
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}
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if (hasValidResetBinding(propertyName)) {
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QQmlAbstractBinding *binding = getResetBinding(propertyName);
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
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QQmlBinding *qmlBinding = dynamic_cast<QQmlBinding*>(binding);
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if (qmlBinding)
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qmlBinding->setTarget(property);
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QQmlPropertyPrivate::setBinding(binding, QQmlPropertyPrivate::None, QQmlPropertyPrivate::DontRemoveBinding);
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if (qmlBinding)
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qmlBinding->update();
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#else
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QQmlPropertyPrivate::setBinding(property, binding, QQmlPropertyPrivate::DontRemoveBinding);
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binding->update();
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#endif
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} else if (property.isResettable()) {
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property.reset();
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} else if (property.propertyTypeCategory() == QQmlProperty::List) {
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QQmlListReference list = qvariant_cast<QQmlListReference>(property.read());
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if (!QmlPrivateGate::hasFullImplementedListInterface(list)) {
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qWarning() << "Property list interface not fully implemented for Class " << property.property().typeName() << " in property " << property.name() << "!";
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return;
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}
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list.clear();
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} else if (property.isWritable()) {
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if (property.read() == getResetValue(propertyName))
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return;
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property.write(getResetValue(propertyName));
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}
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}
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bool DesignerCustomObjectData::hasValidResetBinding(const PropertyName &propertyName) const
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{
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return m_resetBindingHash.contains(propertyName) && m_resetBindingHash.value(propertyName).data();
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}
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QQmlAbstractBinding *DesignerCustomObjectData::getResetBinding(const PropertyName &propertyName) const
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{
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return m_resetBindingHash.value(propertyName).data();
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}
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bool DesignerCustomObjectData::hasBindingForProperty(QQmlContext *context, const PropertyName &propertyName, bool *hasChanged) const
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{
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if (QmlPrivateGate::isPropertyBlackListed(propertyName))
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return false;
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QQmlProperty property(object(), QString::fromUtf8(propertyName), context);
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bool hasBinding = QQmlPropertyPrivate::binding(property);
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if (hasChanged) {
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*hasChanged = hasBinding != m_hasBindingHash.value(propertyName, false);
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if (*hasChanged)
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m_hasBindingHash.insert(propertyName, hasBinding);
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}
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return QQmlPropertyPrivate::binding(property);
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}
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void DesignerCustomObjectData::setPropertyBinding(QQmlContext *context, const PropertyName &propertyName, const QString &expression)
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{
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QQmlProperty property(object(), QString::fromUtf8(propertyName), context);
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if (!property.isValid())
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return;
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if (property.isProperty()) {
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QQmlBinding *binding = new QQmlBinding(expression, object(), context);
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binding->setTarget(property);
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binding->setNotifyOnValueChanged(true);
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
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QQmlPropertyPrivate::setBinding(binding, QQmlPropertyPrivate::None, QQmlPropertyPrivate::DontRemoveBinding);
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//Refcounting is taking take care of deletion
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#else
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QQmlAbstractBinding *oldBinding = QQmlPropertyPrivate::setBinding(property, binding);
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if (oldBinding && !hasValidResetBinding(propertyName))
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oldBinding->destroy();
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#endif
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binding->update();
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if (binding->hasError()) {
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if (property.property().userType() == QVariant::String)
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property.write(QVariant(QString("#%1#").arg(expression)));
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}
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} else {
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qWarning() << Q_FUNC_INFO << ": Cannot set binding for property" << propertyName << ": property is unknown for type";
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}
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}
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void DesignerCustomObjectData::keepBindingFromGettingDeleted(QQmlContext *context, const PropertyName &propertyName)
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{
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#if (QT_VERSION >= QT_VERSION_CHECK(5, 6, 0))
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//Refcounting is taking care
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Q_UNUSED(context)
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Q_UNUSED(propertyName)
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#else
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QQmlProperty property(object(), QString::fromUtf8(propertyName), context);
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QQmlPropertyPrivate::setBinding(property, 0, QQmlPropertyPrivate::BypassInterceptor
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| QQmlPropertyPrivate::DontRemoveBinding);
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#endif
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}
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} // namespace QmlPrivateGate
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} // namespace Internal
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} // namespace QmlDesigner
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