/* * Copyright (C) 2007 Staikos Computing Services Inc. * Copyright (C) 2007 Trolltech ASA * Copyright (C) 2008 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of * its contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #include "config.h" #include "Threading.h" #include <QtCore/QObject> #include <QtCore/QCoreApplication> namespace WebCore { class PerformFunctionEvent : public QEvent { public: static const int EventType = 723; PerformFunctionEvent(MainThreadFunction*, void* context); void invoke(); private: MainThreadFunction* m_function; void* m_context; }; class MainThreadInvoker : public QObject { Q_OBJECT public: MainThreadInvoker(); protected: bool event(QEvent*); }; PerformFunctionEvent::PerformFunctionEvent(MainThreadFunction* function, void* context) : QEvent(static_cast<QEvent::Type>(EventType)) , m_function(function) , m_context(context) { } void PerformFunctionEvent::invoke() { m_function(m_context); } MainThreadInvoker::MainThreadInvoker() { moveToThread(QCoreApplication::instance()->thread()); } bool MainThreadInvoker::event(QEvent* event) { if (event->type() == PerformFunctionEvent::EventType) static_cast<PerformFunctionEvent*>(event)->invoke(); return QObject::event(event); } Q_GLOBAL_STATIC(MainThreadInvoker, webkit_main_thread_invoker) void callOnMainThread(MainThreadFunction* function, void* context) { QCoreApplication::postEvent(webkit_main_thread_invoker(), new PerformFunctionEvent(function, context)); } } #include "ThreadingQt.moc"