1 files changed, 71 insertions, 0 deletions
diff --git a/include/comphelper/SetFlagContextHelper.hxx b/include/comphelper/SetFlagContextHelper.hxx
new file mode 100644
index 000000000..b1b15eabb
--- /dev/null
+++ b/include/comphelper/SetFlagContextHelper.hxx
@@ -0,0 +1,71 @@
+/* -*- 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/.
+ */
+
+#ifndef INCLUDED_COMPHELPER_SETFLAGCONTEXTHELPER_HXX
+#define INCLUDED_COMPHELPER_SETFLAGCONTEXTHELPER_HXX
+
+#include <com/sun/star/uno/XCurrentContext.hpp>
+#include <cppuhelper/implbase.hxx>
+#include <uno/current_context.hxx>
+#include <utility>
+
+namespace comphelper
+{
+// Used to flag some named value to be true for all code running in this context
+class SetFlagContext final : public cppu::WeakImplHelper<css::uno::XCurrentContext>
+{
+public:
+    explicit SetFlagContext(OUString sName, css::uno::Reference<css::uno::XCurrentContext> xContext)
+        : m_sName(std::move(sName))
+        , mxNextContext(std::move(xContext))
+    {
+    }
+    SetFlagContext(const SetFlagContext&) = delete;
+    SetFlagContext& operator=(const SetFlagContext&) = delete;
+
+    virtual css::uno::Any SAL_CALL getValueByName(OUString const& Name) override
+    {
+        if (Name == m_sName)
+            return css::uno::Any(true);
+        else if (mxNextContext.is())
+            return mxNextContext->getValueByName(Name);
+        else
+            return css::uno::Any();
+    }
+
+private:
+    OUString m_sName;
+    css::uno::Reference<css::uno::XCurrentContext> mxNextContext;
+};
+
+// Returns a new context that reports the named value to be true
+inline css::uno::Reference<css::uno::XCurrentContext> NewFlagContext(const OUString& sName)
+{
+    return new SetFlagContext(sName, css::uno::getCurrentContext());
+}
+
+// A specialization for preventing "Java must be enabled" interaction
+inline css::uno::Reference<css::uno::XCurrentContext> NoEnableJavaInteractionContext()
+{
+    return NewFlagContext("DontEnableJava");
+}
+
+inline bool IsContextFlagActive(const OUString& sName)
+{
+    bool bFlag = false;
+    if (const auto xContext = css::uno::getCurrentContext())
+        xContext->getValueByName(sName) >>= bFlag;
+    return bFlag;
+}
+
+} // namespace comphelper
+
+#endif // INCLUDED_COMPHELPER_SETFLAGCONTEXTHELPER_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */