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Diffstat (limited to 'src/qml/qml/v8/qv8bindings_p.h')
-rw-r--r-- | src/qml/qml/v8/qv8bindings_p.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/src/qml/qml/v8/qv8bindings_p.h b/src/qml/qml/v8/qv8bindings_p.h new file mode 100644 index 0000000000..ad5b2cb8b0 --- /dev/null +++ b/src/qml/qml/v8/qv8bindings_p.h @@ -0,0 +1,148 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** 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. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU General +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QV8BINDINGS_P_H +#define QV8BINDINGS_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <private/qqmlpropertycache_p.h> +#include <private/qqmlinstruction_p.h> +#include <private/qqmlexpression_p.h> +#include <private/qqmlcompiler_p.h> +#include <private/qqmlbinding_p.h> +#include <private/qflagpointer_p.h> + +QT_BEGIN_HEADER + +QT_BEGIN_NAMESPACE + +class QQmlCompiledData; + +class QV8BindingsPrivate; +class QV8Bindings : public QQmlAbstractExpression +{ +public: + QV8Bindings(QQmlCompiledData::V8Program *, + int line, + QQmlContextData *context); + virtual ~QV8Bindings(); + + QQmlAbstractBinding *configBinding(QObject *target, QObject *scope, + const QQmlInstruction::instr_assignBinding *); + + // Inherited from QQmlAbstractExpression + virtual void refresh(); + + struct Binding : public QQmlJavaScriptExpression, + public QQmlAbstractBinding { + Binding(); + + void update() { QQmlAbstractBinding::update(); } + void refresh(); + + // "Inherited" from QQmlJavaScriptExpression + static QString expressionIdentifier(QQmlJavaScriptExpression *); + static void expressionChanged(QQmlJavaScriptExpression *); + + // Inherited from QQmlAbstractBinding + virtual void setEnabled(bool, QQmlPropertyPrivate::WriteFlags flags); + virtual void update(QQmlPropertyPrivate::WriteFlags flags); + virtual void destroy(); + virtual int propertyIndex() const; + virtual QObject *object() const; + + QObject *target; + QV8Bindings *parent; + + // To save memory, we store flags inside the instruction pointer. + // flag1: enabled + // flag2: updating + QFlagPointer<const QQmlInstruction::instr_assignBinding> instruction; + + inline bool enabledFlag() const { return instruction.flag(); } + inline void setEnabledFlag(bool v) { instruction.setFlagValue(v); } + inline bool updatingFlag() const { return instruction.flag2(); } + inline void setUpdatingFlag(bool v) { instruction.setFlag2Value(v); } + }; + + inline void addref(); + inline void release(); + +private: + Q_DISABLE_COPY(QV8Bindings) + + const QUrl &url() const; + const QString &urlString() const; + v8::Persistent<v8::Array> &functions() const; + + QQmlCompiledData::V8Program *program; + Binding *bindings; + int refCount; +}; + +void QV8Bindings::addref() +{ + ++refCount; +} + +void QV8Bindings::release() +{ + if (0 == --refCount) + delete this; +} + +QT_END_NAMESPACE + +QT_END_HEADER + +#endif // QV8BINDINGS_P_H + + |