tdf#44462: add a link to Windows Default apps settings applet

Add "Windows Default apps" button to Options->General to run system applet
to control file associations, in accordance to recommendation from MS [1].
On Windows 10, though, the call to LaunchAdvancedAssociationUI would only
bring a system-modal infobanner suggesting the user to go to Settings >
Apps > Default apps, as documented at [2]. Since this is what MS considers
the correct way to manage application associations, the infobanner should
be enough.

[1] https://docs.microsoft.com/en-us/windows/win32/shell/default-programs
[2] https://docs.microsoft.com/en-us/windows/win32/api/shobjidl/nf-shobjidl-iapplicationassociationregistrationui-launchadvancedassociationui

Change-Id: I79cccdd00afac998c028b8e151db66bbd75be985
Reviewed-on: https://gerrit.libreoffice.org/82777
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/cui/source/options/optgdlg.hxx b/cui/source/options/optgdlg.hxx
index 5c591e7c876f..392554f6e8dd 100644
--- a/cui/source/options/optgdlg.hxx
+++ b/cui/source/options/optgdlg.hxx
@@ -54,8 +54,15 @@ private:
     std::unique_ptr<weld::CheckButton> m_xCrashReport;
     std::unique_ptr<weld::Widget> m_xQuickStarterFrame;
     std::unique_ptr<weld::CheckButton> m_xQuickLaunchCB;
+#if defined(_WIN32)
+    std::unique_ptr<weld::Widget> m_xFileAssocFrame;
+    std::unique_ptr<weld::Button> m_xFileAssocBtn;
+#endif
 
     DECL_LINK(TwoFigureHdl, weld::SpinButton&, void);
+#if defined(_WIN32)
+    DECL_LINK(FileAssocClick, weld::Button&, void);
+#endif
 protected:
     virtual DeactivateRC   DeactivatePage( SfxItemSet* pSet ) override;