diff options
Diffstat (limited to 'src/core/api/qwebenginecallback_p.h')
| -rw-r--r-- | src/core/api/qwebenginecallback_p.h | 253 |
1 files changed, 0 insertions, 253 deletions
diff --git a/src/core/api/qwebenginecallback_p.h b/src/core/api/qwebenginecallback_p.h deleted file mode 100644 index 133a86f6d..000000000 --- a/src/core/api/qwebenginecallback_p.h +++ /dev/null @@ -1,253 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the QtWebEngine 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. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ - -#ifndef QWEBENGINECALLBACK_P_H -#define QWEBENGINECALLBACK_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 "qtwebenginecoreglobal_p.h" -#include "qwebenginecallback.h" - -#include <QByteArray> -#include <QHash> -#include <QSharedData> -#include <QString> -#include <QVariant> -#include <type_traits> - -// keep in sync with Q_DECLARE_SHARED... in qwebenginecallback.h -#define FOR_EACH_TYPE(F) \ - F(bool) \ - F(int) \ - F(const QString &) \ - F(const QByteArray &) \ - F(const QVariant &) - -namespace QtWebEngineCore { - -class CallbackDirectory { - template<typename T> - void invokeInternal(quint64 callbackId, T result); - template<typename T> - void invokeEmptyInternal(QtWebEnginePrivate::QWebEngineCallbackPrivateBase<T> *callback); - -public: - ~CallbackDirectory() - { - // "Cancel" pending callbacks by calling them with an invalid value. - // This guarantees that each callback is called exactly once. - for (CallbackSharedDataPointerBase *const sharedPtrBase : m_callbackMap) { - Q_ASSERT(sharedPtrBase); - sharedPtrBase->invokeEmpty(); - delete sharedPtrBase; - } - } - - enum ReservedCallbackIds { - NoCallbackId = 0, - DeleteCookieCallbackId, - DeleteSessionCookiesCallbackId, - DeleteAllCookiesCallbackId, - GetAllCookiesCallbackId, - - // Place reserved id's before this. - ReservedCallbackIdsEnd - }; - - template<typename T> - void registerCallback(quint64 callbackId, const QWebEngineCallback<T> &callback); - - template<typename T> - void invokeEmpty(const QWebEngineCallback<T> &callback); - -#define DEFINE_INVOKE_FOR_TYPE(Type) \ - void invoke(quint64 callbackId, Type result) { invokeInternal<Type>(callbackId, std::forward<Type>(result)); } - FOR_EACH_TYPE(DEFINE_INVOKE_FOR_TYPE) -#undef DEFINE_INVOKE_FOR_TYPE - - template<typename A> - void invokeDirectly(const QWebEngineCallback<typename std::remove_reference<A>::type &> &callback, A &argument) - { - return callback.d.data()->operator()(argument); - } - - template<typename A> - void invokeDirectly(const QWebEngineCallback<typename std::remove_reference<A>::type> &callback, const A &argument) - { - return callback.d.data()->operator()(std::forward<const A &>(argument)); - } - -private: - struct CallbackSharedDataPointerBase { - virtual ~CallbackSharedDataPointerBase() {} - virtual void invokeEmpty() = 0; - virtual void doRef() = 0; - virtual void doDeref() = 0; - virtual operator bool() const = 0; - }; - - template<typename T> - struct CallbackSharedDataPointer : public CallbackSharedDataPointerBase { - CallbackDirectory *parent; - QtWebEnginePrivate::QWebEngineCallbackPrivateBase<T> *callback; - - ~CallbackSharedDataPointer() { doDeref(); } - CallbackSharedDataPointer() : parent(0), callback(0) {} - CallbackSharedDataPointer(const CallbackSharedDataPointer<T> &other) - : parent(other.parent), callback(other.callback) - { - doRef(); - } - CallbackSharedDataPointer(CallbackDirectory *p, QtWebEnginePrivate::QWebEngineCallbackPrivateBase<T> *c) - : parent(p), callback(c) - { - Q_ASSERT(callback); - doRef(); - } - - void invokeEmpty() override; - operator bool() const override { return callback; } - - private: - void doRef() override; - void doDeref() override; - }; - - QHash<quint64, CallbackSharedDataPointerBase *> m_callbackMap; -}; - -template<typename T> -inline void CallbackDirectory::registerCallback(quint64 callbackId, const QWebEngineCallback<T> &callback) -{ - if (!callback.d) - return; - m_callbackMap.insert(callbackId, new CallbackSharedDataPointer<T>(this, callback.d.data())); -} - -template<typename T> -inline void CallbackDirectory::invokeInternal(quint64 callbackId, T result) -{ - CallbackSharedDataPointerBase *const sharedPtrBase = m_callbackMap.take(callbackId); - if (!sharedPtrBase) - return; - - auto ptr = static_cast<CallbackSharedDataPointer<T> *>(sharedPtrBase); - Q_ASSERT(ptr); - (*ptr->callback)(std::forward<T>(result)); - delete ptr; -} - -template<typename T> -inline void CallbackDirectory::invokeEmptyInternal(QtWebEnginePrivate::QWebEngineCallbackPrivateBase<T> *callback) -{ - Q_ASSERT(callback); - using NoRefT = typename std::remove_reference<T>::type; - using NoConstNoRefT = typename std::remove_const<NoRefT>::type; - NoConstNoRefT t; - (*callback)(t); -} - -template<> -inline void CallbackDirectory::invokeEmptyInternal(QtWebEnginePrivate::QWebEngineCallbackPrivateBase<bool> *callback) -{ - Q_ASSERT(callback); - (*callback)(false); -} - -template<> -inline void CallbackDirectory::invokeEmptyInternal(QtWebEnginePrivate::QWebEngineCallbackPrivateBase<int> *callback) -{ - Q_ASSERT(callback); - (*callback)(0); -} - -template<typename T> -inline void CallbackDirectory::invokeEmpty(const QWebEngineCallback<T> &callback) -{ - if (!callback.d) - return; - - invokeEmptyInternal(callback.d.data()); -} - -template<typename T> -inline void CallbackDirectory::CallbackSharedDataPointer<T>::doRef() -{ - if (!callback) - return; - - callback->ref.ref(); -} - -template<typename T> -inline void CallbackDirectory::CallbackSharedDataPointer<T>::doDeref() -{ - if (!callback) - return; - if (!callback->ref.deref()) - delete callback; -} - -template<typename T> -inline void CallbackDirectory::CallbackSharedDataPointer<T>::invokeEmpty() -{ - if (!callback) - return; - - Q_ASSERT(parent); - parent->invokeEmptyInternal(callback); -} - -#define CHECK_RELOCATABLE(x) Q_STATIC_ASSERT((QTypeInfoQuery<QWebEngineCallback<x>>::isRelocatable)); -FOR_EACH_TYPE(CHECK_RELOCATABLE) -#undef CHECK_RELOCATABLE - -} // namespace QtWebEngineCore - -#endif // QWEBENGINECALLBACK_P_H |