Rebased ref, commits from common ancestor:
commit b4158aedf18394c695a14708bc8ff14c601b1d3e
Author:     Miklos Vajna <>
AuthorDate: Wed Dec 19 17:47:57 2018 +0100
Commit:     Thorsten Behrens <>
CommitDate: Fri Oct 11 11:19:13 2019 +0200

    framework: allow loading a component on the main thread
    The user-visible problem was that embedded (OLE) objects contained in a
    document that was loaded on a thread were not editable.
    This works in the loaded-with-UI case because the Windows version of the
    SalData constructor in vcl calls CoInitialize() (which sets the
    concurrency model of the main thread to STA) and then later the
    OleComponent constructor in embeddedobj calls OleInitialize(), which
    just realizes that the concurrency model is already set, and OLE editing
    However, if the document is loaded on a thread, things are different.
    The concurrency model of the thread is set to MTA in
    oslWorkerWrapperFunction() in sal, so the later OleInitialize() will
    fail with RPC_E_CHANGED_MODE, as it's not possible to set the
    concurrency model of a thread once it's set.
    Solve the problem by providing in opt-in way to execute the actual
    import on the main thread, since remote UNO clients always invoke
    Desktop::loadComponentFromURL() on a thread.
    Reviewed-by: Miklos Vajna <>
    Tested-by: Jenkins
    (cherry picked from commit 2dc3a6c273cb82506842864481d78df7294debbf)
    Change-Id: I94f2721b599c3ae3e2ebc1c90dea649a69d51ef7

diff --git a/framework/source/services/frame.cxx 
index f3209b346544..0da8c99d0607 100644
--- a/framework/source/services/frame.cxx
+++ b/framework/source/services/frame.cxx
@@ -20,6 +20,8 @@
 #include <services/frame.hxx>
 #include <dispatch/dispatchprovider.hxx>
+#include <boost/bind.hpp>
 #include <dispatch/interceptionhelper.hxx>
 #include <dispatch/closedispatcher.hxx>
 #include <dispatch/windowcommanddispatch.hxx>
@@ -82,7 +84,9 @@
 #include <comphelper/processfactory.hxx>
 #include <unotools/moduleoptions.hxx>
 #include <tools/diagnose_ex.h>
+#include <unotools/cmdoptions.hxx>
+#include <vcl/threadex.hxx>
 #include <vcl/menu.hxx>
 namespace framework{
@@ -320,7 +324,10 @@ css::uno::Reference< css::lang::XComponent > SAL_CALL 
     css::uno::Reference< css::uno::XComponentContext > xContext = m_xContext;
-    return LoadEnv::loadComponentFromURL(xThis, xContext, sURL, 
sTargetFrameName, nSearchFlags, lArguments);
+    return vcl::solarthread::syncExecute(
+        boost::bind(&LoadEnv::loadComponentFromURL, xThis,
+                    xContext, sURL, sTargetFrameName,
+                    nSearchFlags, lArguments));
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