Resolves: rhbz#836937 insanely slow with Zemberek installed

Zemberek is a java spellchecker extension. With it installed the collecting of
spellchecker information on first activation of spellchecking is insanely slow
as the cache of spellcheckers is thrown away on each iteration through each
language known to LibreOffice.

So...

move the config updating stuff from editeng down to the linguistic layer. Let
the linguistic layer keep its spellchecker cache and listen to the extension
manager to know if an extension which might be a spellchecker one has been
modified and only throw away the cache on that event or if (existing
implementation) the config data for linguistics changes.

The polling of changed linguistic data in SvxLinguConfigUpdate::IsNeedUpdateAll
can be removed and leave it up to LngSvcMgr to load everything in its ctor and
keep itself up to date with its config and extension listeners.

Change-Id: I9c93d998928e2e7f5128c36771b3e450a8057cd6

1 files changed, 22 insertions, 4 deletions

diff --git a/linguistic/source/lngsvcmgr.hxx b/linguistic/source/lngsvcmgr.hxx
index 80cbd3d65abe..537750d7d262 100644
--- a/linguistic/source/lngsvcmgr.hxx
+++ b/linguistic/source/lngsvcmgr.hxx
@@ -30,7 +30,7 @@
 #define _LINGUISTIC_LNGSVCMGR_HXX_
 
 #include <uno/lbnames.h>            // CPPU_CURRENT_LANGUAGE_BINDING_NAME macro, which specify the environment type
-#include <cppuhelper/implbase4.hxx> // helper for implementations
+#include <cppuhelper/implbase5.hxx> // helper for implementations
 #include <cppuhelper/interfacecontainer.h>  //OMultiTypeInterfaceContainerHelper
 
 
@@ -39,8 +39,10 @@
 #include <com/sun/star/lang/XComponent.hpp>
 #include <com/sun/star/linguistic2/XLinguServiceManager.hpp>
 #include <com/sun/star/linguistic2/XAvailableLocales.hpp>
+#include <com/sun/star/util/XModifyBroadcaster.hpp>
+#include <com/sun/star/util/XModifyListener.hpp>
 #include <unotools/configitem.hxx>
-
+#include <vcl/timer.hxx>
 #include <boost/ptr_container/ptr_vector.hpp>
 
 #include "linguistic/misc.hxx"
@@ -64,12 +66,13 @@ namespace com { namespace sun { namespace star { namespace linguistic2 {
 
 
 class LngSvcMgr :
-    public cppu::WeakImplHelper4
+    public cppu::WeakImplHelper5
     <
         com::sun::star::linguistic2::XLinguServiceManager,
         com::sun::star::linguistic2::XAvailableLocales,
         com::sun::star::lang::XComponent,
-        com::sun::star::lang::XServiceInfo
+        com::sun::star::lang::XServiceInfo,
+        com::sun::star::util::XModifyListener
     >,
     private utl::ConfigItem
 {
@@ -89,6 +92,12 @@ class LngSvcMgr :
     com::sun::star::uno::Reference<
         ::com::sun::star::lang::XEventListener >        xListenerHelper;
 
+    com::sun::star::uno::Reference<
+        ::com::sun::star::util::XModifyBroadcaster>     xMB;
+
+    Timer                                               aUpdateTimer;
+
+
     com::sun::star::uno::Sequence<
         com::sun::star::lang::Locale >                  aAvailSpellLocales;
     com::sun::star::uno::Sequence<
@@ -139,6 +148,10 @@ class LngSvcMgr :
     virtual void    Notify( const com::sun::star::uno::Sequence< rtl::OUString > &rPropertyNames );
     virtual void    Commit();
 
+    void UpdateAll();
+    void stopListening();
+    DECL_LINK( updateAndBroadcast, void* );
+
 public:
     LngSvcMgr();
     virtual ~LngSvcMgr();
@@ -166,6 +179,11 @@ public:
     virtual ::sal_Bool SAL_CALL supportsService( const ::rtl::OUString& ServiceName ) throw (::com::sun::star::uno::RuntimeException);
     virtual ::com::sun::star::uno::Sequence< ::rtl::OUString > SAL_CALL getSupportedServiceNames(  ) throw (::com::sun::star::uno::RuntimeException);
 
+    // XEventListener
+    virtual void SAL_CALL disposing( const ::com::sun::star::lang::EventObject& rSource ) throw(::com::sun::star::uno::RuntimeException);
+
+    // XModifyListener
+    virtual void SAL_CALL modified( const ::com::sun::star::lang::EventObject& rEvent ) throw(::com::sun::star::uno::RuntimeException);
 
     static inline ::rtl::OUString   getImplementationName_Static();
     static ::com::sun::star::uno::Sequence< ::rtl::OUString > getSupportedServiceNames_Static() throw();