1 files changed, 123 insertions, 0 deletions
diff --git a/include/svtools/genericasyncunodialog.hxx b/include/svtools/genericasyncunodialog.hxx
new file mode 100644
index 0000000000..058c37b00c
--- /dev/null
+++ b/include/svtools/genericasyncunodialog.hxx
@@ -0,0 +1,123 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <com/sun/star/ui/dialogs/XAsynchronousExecutableDialog.hpp>
+#include <svtools/genericunodialog.hxx>
+#include <vcl/svapp.hxx>
+
+using namespace css::uno;
+
+namespace svt
+{
+typedef cppu::ImplInheritanceHelper<::svt::OGenericUnoDialog,
+                                    css::ui::dialogs::XAsynchronousExecutableDialog>
+    OGenericUnoAsyncDialogBase;
+
+/** abstract base class for implementing UNO objects representing asynchronous dialogs
+    */
+template <typename T> class OGenericUnoAsyncDialog : public OGenericUnoAsyncDialogBase
+{
+    class UnoAsyncDialogEntryGuard
+    {
+    public:
+        UnoAsyncDialogEntryGuard(OGenericUnoAsyncDialog<T>& _rDialog)
+            : m_aGuard(_rDialog.GetMutex())
+        {
+        }
+
+    private:
+        ::osl::MutexGuard m_aGuard;
+    };
+
+protected:
+    std::shared_ptr<T> m_xAsyncDialog;
+
+protected:
+    OGenericUnoAsyncDialog(const css::uno::Reference<css::uno::XComponentContext>& _rxContext)
+        : OGenericUnoAsyncDialogBase(_rxContext)
+    {
+    }
+
+public:
+    // XAsynchronousExecutableDialog
+    void SAL_CALL setDialogTitle(const OUString& aTitle) override
+    {
+        OGenericUnoDialog::setTitle(aTitle);
+    }
+
+    virtual void SAL_CALL startExecuteModal(
+        const css::uno::Reference<css::ui::dialogs::XDialogClosedListener>& xListener) override
+    {
+        SolarMutexGuard aSolarGuard;
+
+        {
+            UnoAsyncDialogEntryGuard aGuard(*this);
+
+            if (m_bExecuting)
+                throw RuntimeException("already executing the dialog (recursive call)", *this);
+
+            if (!m_xAsyncDialog)
+            {
+                m_xAsyncDialog = createAsyncDialog(m_xParent);
+                OSL_ENSURE(m_xAsyncDialog, "OGenericUnoAsyncDialog::startExecuteModal: "
+                                           "createAsyncDialog returned nonsense!");
+                if (!m_xAsyncDialog)
+                    return;
+
+                // do some initialisations
+                if (!m_bTitleAmbiguous)
+                    m_xAsyncDialog->set_title(m_sTitle);
+            }
+
+            m_bExecuting = true;
+        }
+
+        runAsync(xListener);
+    }
+
+protected:
+    virtual std::shared_ptr<T>
+    createAsyncDialog(const css::uno::Reference<css::awt::XWindow>& /*rParent*/)
+    {
+        return nullptr;
+    }
+
+    void destroyAsyncDialog()
+    {
+        SolarMutexGuard aSolarGuard;
+        if (m_xAsyncDialog)
+            m_xAsyncDialog.reset();
+    }
+
+    virtual void
+    runAsync(const css::uno::Reference<css::ui::dialogs::XDialogClosedListener>& /*xListener*/)
+    {
+    }
+
+    virtual void executedAsyncDialog(std::shared_ptr<T> /*xAsyncDialog*/,
+                                     sal_Int32 /*_nExecutionResult*/)
+    {
+    }
+};
+
+} // namespace svt
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */