diff options
Diffstat (limited to 'src/qml/qml/qqmlbinding_p.h')
| -rw-r--r-- | src/qml/qml/qqmlbinding_p.h | 107 |
1 files changed, 33 insertions, 74 deletions
diff --git a/src/qml/qml/qqmlbinding_p.h b/src/qml/qml/qqmlbinding_p.h index bf73c24c9e..4031a2655e 100644 --- a/src/qml/qml/qqmlbinding_p.h +++ b/src/qml/qml/qqmlbinding_p.h @@ -1,41 +1,5 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtQml module of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:LGPL$ -** 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 https://www.qt.io/terms-conditions. For further -** information use the contact form at https://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 3 as published by the Free Software -** Foundation and appearing in the file LICENSE.LGPL3 included in the -** packaging of this file. Please review the following information to -** ensure the GNU Lesser General Public License version 3 requirements -** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 2.0 or (at your option) the GNU General -** Public license version 3 or any later version approved by the KDE Free -** Qt Foundation. The licenses are as published by the Free Software -** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-2.0.html and -** https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only #ifndef QQMLBINDING_P_H #define QQMLBINDING_P_H @@ -51,12 +15,8 @@ // We mean it. // -#include "qqml.h" -#include "qqmlpropertyvaluesource.h" -#include "qqmlexpression.h" #include "qqmlproperty.h" #include "qqmlscriptstring.h" -#include "qqmlproperty_p.h" #include <QtCore/QObject> #include <QtCore/QMetaProperty> @@ -64,11 +24,12 @@ #include <private/qqmlabstractbinding_p.h> #include <private/qqmljavascriptexpression_p.h> #include <private/qv4functionobject_p.h> +#include <private/qqmltranslation_p.h> QT_BEGIN_NAMESPACE class QQmlContext; -class Q_QML_PRIVATE_EXPORT QQmlBinding : public QQmlJavaScriptExpression, +class Q_QML_EXPORT QQmlBinding : public QQmlJavaScriptExpression, public QQmlAbstractBinding { friend class QQmlAbstractBinding; @@ -86,16 +47,26 @@ public: const QQmlPropertyData *property, QV4::Function *function, QObject *obj, const QQmlRefPointer<QQmlContextData> &ctxt, QV4::ExecutionContext *scope); + static QQmlBinding *create(QMetaType propertyType, QV4::Function *function, QObject *obj, + const QQmlRefPointer<QQmlContextData> &ctxt, + QV4::ExecutionContext *scope); + static QQmlBinding *createTranslationBinding( const QQmlRefPointer<QV4::ExecutableCompilationUnit> &unit, const QV4::CompiledData::Binding *binding, QObject *obj, const QQmlRefPointer<QQmlContextData> &ctxt); - ~QQmlBinding() override; + static QQmlBinding * + createTranslationBinding(const QQmlRefPointer<QV4::ExecutableCompilationUnit> &unit, + const QQmlRefPointer<QQmlContextData> &ctxt, + const QString &propertyName, const QQmlTranslation &translationData, + const QQmlSourceLocation &location, QObject *obj); - void setTarget(const QQmlProperty &); - bool setTarget(QObject *, const QQmlPropertyData &, const QQmlPropertyData *valueType); + Kind kind() const final { return QQmlAbstractBinding::QmlBinding; } + + ~QQmlBinding() override; + bool mustCaptureBindableProperty() const final {return true;} void refresh() override; void setEnabled(bool, QQmlPropertyData::WriteFlags flags = QQmlPropertyData::DontRemoveBinding) override; @@ -108,6 +79,10 @@ public: }; QVariant evaluate(); + bool evaluate(void *result, QMetaType type) + { + return QQmlJavaScriptExpression::evaluate(&result, &type, 0); + } void expressionChanged() override; @@ -116,6 +91,7 @@ public: void setBoundFunction(QV4::BoundFunction *boundFunction) { m_boundFunction.set(boundFunction->engine(), *boundFunction); } + bool hasBoundFunction() const { return m_boundFunction.valueRef(); } /** * This method returns a snapshot of the currently tracked dependencies of @@ -125,52 +101,35 @@ public: * Call this method from the UI thread. */ QVector<QQmlProperty> dependencies() const; + // This method is used internally to check whether a binding is constant and can be removed virtual bool hasDependencies() const; protected: virtual void doUpdate(const DeleteWatcher &watcher, - QQmlPropertyData::WriteFlags flags, QV4::Scope &scope) = 0; + QQmlPropertyData::WriteFlags flags, QV4::Scope &scope); + + virtual bool write(const QV4::Value &result, bool isUndefined, QQmlPropertyData::WriteFlags flags) = 0; + virtual bool write(void *result, QMetaType type, bool isUndefined, QQmlPropertyData::WriteFlags flags) = 0; - void getPropertyData(QQmlPropertyData **propertyData, QQmlPropertyData *valueTypeData) const; int getPropertyType() const; bool slowWrite(const QQmlPropertyData &core, const QQmlPropertyData &valueTypeData, const QV4::Value &result, bool isUndefined, QQmlPropertyData::WriteFlags flags); + bool slowWrite(const QQmlPropertyData &core, const QQmlPropertyData &valueTypeData, + const void *result, QMetaType resultType, bool isUndefined, + QQmlPropertyData::WriteFlags flags); QV4::ReturnedValue evaluate(bool *isUndefined); private: - inline bool updatingFlag() const; - inline void setUpdatingFlag(bool); - inline bool enabledFlag() const; - inline void setEnabledFlag(bool); - - static QQmlBinding *newBinding(QQmlEnginePrivate *engine, const QQmlPropertyData *property); + static QQmlBinding *newBinding(const QQmlPropertyData *property); + static QQmlBinding *newBinding(QMetaType propertyType); QQmlSourceLocation *m_sourceLocation = nullptr; // used for Qt.binding() created functions QV4::PersistentValue m_boundFunction; // used for Qt.binding() that are created from a bound function object + void handleWriteError(const void *result, QMetaType resultType, QMetaType metaType); }; -bool QQmlBinding::updatingFlag() const -{ - return m_target.tag().testFlag(UpdatingBinding); -} - -void QQmlBinding::setUpdatingFlag(bool v) -{ - m_target.setTag(m_target.tag().setFlag(UpdatingBinding, v)); -} - -bool QQmlBinding::enabledFlag() const -{ - return m_target.tag().testFlag(BindingEnabled); -} - -void QQmlBinding::setEnabledFlag(bool v) -{ - m_target.setTag(m_target.tag().setFlag(BindingEnabled, v)); -} - QT_END_NAMESPACE Q_DECLARE_METATYPE(QQmlBinding*) |