1 files changed, 156 insertions, 0 deletions
diff --git a/sd/source/ui/slideshow/SlideShowRestarter.cxx b/sd/source/ui/slideshow/SlideShowRestarter.cxx
new file mode 100644
index 000000000..b8c61ba48
--- /dev/null
+++ b/sd/source/ui/slideshow/SlideShowRestarter.cxx
@@ -0,0 +1,156 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <DrawController.hxx>
+#include <ViewShellBase.hxx>
+#include <slideshow.hxx>
+#include "SlideShowRestarter.hxx"
+
+#include <comphelper/propertyvalue.hxx>
+#include <framework/ConfigurationController.hxx>
+#include <framework/FrameworkHelper.hxx>
+#include <sfx2/dispatch.hxx>
+#include <sfx2/viewfrm.hxx>
+#include <svx/svxids.hrc>
+#include <vcl/svapp.hxx>
+
+#include <functional>
+
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using ::sd::framework::FrameworkHelper;
+
+namespace sd {
+
+SlideShowRestarter::SlideShowRestarter (
+    const ::rtl::Reference<SlideShow>& rpSlideShow,
+    ViewShellBase* pViewShellBase)
+    : mnEventId(nullptr),
+      mpSlideShow(rpSlideShow),
+      mpViewShellBase(pViewShellBase),
+      mnDisplayCount(Application::GetScreenCount()),
+      mpDispatcher(pViewShellBase->GetViewFrame()->GetDispatcher()),
+      mnCurrentSlideNumber(0)
+{
+}
+
+SlideShowRestarter::~SlideShowRestarter()
+{
+}
+
+void SlideShowRestarter::Restart (bool bForce)
+{
+    // Prevent multiple and concurrently restarts.
+    if (mnEventId != nullptr)
+        return;
+
+    if (bForce)
+        mnDisplayCount = 0;
+
+    // Remember the current slide in order to restore it after the slide
+    // show has been restarted.
+    if (mpSlideShow.is())
+        mnCurrentSlideNumber = mpSlideShow->getCurrentPageNumber();
+
+    // Remember a shared pointer to this object to prevent its destruction
+    // before the whole restarting process has finished.
+    mpSelf = shared_from_this();
+
+    // We do not know in what situation this method was called.  So, in
+    // order to be able to cleanly stop the presentation, we do that
+    // asynchronously.
+    mnEventId = Application::PostUserEvent(
+        LINK(this, SlideShowRestarter, EndPresentation));
+}
+
+IMPL_LINK_NOARG(SlideShowRestarter, EndPresentation, void*, void)
+{
+    mnEventId = nullptr;
+    if (!mpSlideShow.is())
+        return;
+
+    if (mnDisplayCount == static_cast<sal_Int32>(Application::GetScreenCount()))
+        return;
+
+    bool bIsExitAfterPresenting = mpSlideShow->IsExitAfterPresenting();
+    mpSlideShow->SetExitAfterPresenting(false);
+    mpSlideShow->end();
+    mpSlideShow->SetExitAfterPresenting(bIsExitAfterPresenting);
+
+    // The following piece of code should not be here because the
+    // slide show should be aware of the existence of the presenter
+    // console (which is displayed in the FullScreenPane).  But the
+    // timing has to be right and I did not find a better place for
+    // it.
+
+    // Wait for the full screen pane, which displays the presenter
+    // console, to disappear.  Only when it is gone, call
+    // InitiatePresenterStart(), in order to begin the asynchronous
+    // restart of the slide show.
+    if (mpViewShellBase == nullptr)
+        return;
+
+    ::std::shared_ptr<FrameworkHelper> pHelper(
+        FrameworkHelper::Instance(*mpViewShellBase));
+    if (pHelper->GetConfigurationController()->getResource(
+        FrameworkHelper::CreateResourceId(FrameworkHelper::msFullScreenPaneURL)).is())
+    {
+        ::sd::framework::ConfigurationController::Lock aLock (
+            pHelper->GetConfigurationController());
+
+        pHelper->RunOnConfigurationEvent(
+            FrameworkHelper::msConfigurationUpdateEndEvent,
+            ::std::bind(&SlideShowRestarter::StartPresentation, shared_from_this()));
+        pHelper->UpdateConfiguration();
+    }
+    else
+    {
+        StartPresentation();
+    }
+}
+
+void SlideShowRestarter::StartPresentation()
+{
+    //rhbz#1091117 crash because we're exiting the application, and this is
+    //being called during the configuration update event on exit. At this point
+    //newly created objects won't get disposed called on them, because the
+    //disposer is doing its last execution of that now.
+    if (mpViewShellBase && mpViewShellBase->GetDrawController().IsDisposing())
+        return;
+
+    if (mpDispatcher == nullptr && mpViewShellBase!=nullptr)
+        mpDispatcher = mpViewShellBase->GetViewFrame()->GetDispatcher();
+
+    // Start the slide show on the saved current slide.
+    if (mpDispatcher != nullptr)
+    {
+        mpDispatcher->Execute(SID_PRESENTATION, SfxCallMode::ASYNCHRON);
+        if (mpSlideShow.is())
+        {
+            Sequence aProperties{ comphelper::makePropertyValue("FirstPage",
+                                  "page" + OUString::number(mnCurrentSlideNumber+1)) };
+            mpSlideShow->startWithArguments(aProperties);
+        }
+        mpSelf.reset();
+    }
+}
+
+} // end of namespace sd
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */