1 files changed, 114 insertions, 0 deletions
diff --git a/src/plugins/wmp/qwmpevents.cpp b/src/plugins/wmp/qwmpevents.cpp
new file mode 100644
index 000000000..66df07b4a
--- /dev/null
+++ b/src/plugins/wmp/qwmpevents.cpp
@@ -0,0 +1,114 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qwmpevents.h"
+
+#include "qwmpglobal.h"
+
+QWmpEvents::QWmpEvents(IUnknown *source, QObject *parent)
+    : QObject(parent)
+    , m_ref(1)
+    , m_connectionPoint(0)
+    , m_adviseCookie(0)
+{
+    HRESULT hr;
+    IConnectionPointContainer *container = 0;
+
+    if ((hr = source->QueryInterface(
+            IID_IConnectionPointContainer, reinterpret_cast<void **>(&container))) != S_OK) {
+        qWarning("No connection point container, %x: %d", hr, qwmp_error_string(hr));
+    } else {
+        if ((hr = container->FindConnectionPoint(
+                __uuidof(IWMPEvents), &m_connectionPoint)) != S_OK) {
+            qWarning("No connection point for IWMPEvents %d", hr);
+        } else if ((hr = m_connectionPoint->Advise(
+                static_cast<IWMPEvents3 *>(this), &m_adviseCookie)) != S_OK) {
+            qWarning("Failed to link to connection point, %x, %s", hr, qwmp_error_string(hr));
+
+            m_connectionPoint->Release();
+            m_connectionPoint = 0;
+        }
+        container->Release();
+    }
+}
+
+QWmpEvents::~QWmpEvents()
+{
+    if (m_connectionPoint) {
+        m_connectionPoint->Unadvise(m_adviseCookie);
+        m_connectionPoint->Release();
+    }
+
+    Q_ASSERT(m_ref == 1);
+}
+
+// IUnknown
+HRESULT QWmpEvents::QueryInterface(REFIID riid, void **object)
+{
+    if (!object) {
+        return E_POINTER;
+    } else if (riid == __uuidof(IUnknown)
+            || riid == __uuidof(IWMPEvents)
+            || riid == __uuidof(IWMPEvents2)
+            || riid == __uuidof(IWMPEvents3)) {
+        *object = static_cast<IWMPEvents3 *>(this);
+
+        AddRef();
+
+        return S_OK;
+    } else {
+        return E_NOINTERFACE;
+    }
+}
+
+ULONG QWmpEvents::AddRef()
+{
+    return InterlockedIncrement(&m_ref);
+}
+
+ULONG QWmpEvents::Release()
+{
+    ULONG ref = InterlockedDecrement(&m_ref);
+
+    Q_ASSERT(ref != 0);
+
+    return ref;
+}