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-rwxr-xr-xwinaccessibility/source/service/msaaservice_impl.cxx285
1 files changed, 176 insertions, 109 deletions
diff --git a/winaccessibility/source/service/msaaservice_impl.cxx b/winaccessibility/source/service/msaaservice_impl.cxx
index ce720c37a64a..82a67b35d03a 100755
--- a/winaccessibility/source/service/msaaservice_impl.cxx
+++ b/winaccessibility/source/service/msaaservice_impl.cxx
@@ -17,7 +17,7 @@
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
-#include <cppuhelper/implbase3.hxx>
+#include <cppuhelper/implbase4.hxx>
#include <cppuhelper/factory.hxx>
#include <cppuhelper/implementationentry.hxx>
@@ -25,9 +25,13 @@
#include <com/sun/star/lang/XInitialization.hpp>
#include <com/sun/star/lang/IllegalArgumentException.hpp>
#include <com/sun/star/accessibility/XMSAAService.hpp>
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
#include <com/sun/star/awt/XExtendedToolkit.hpp>
#include <vcl/svapp.hxx>
+#include <vcl/window.hxx>
+
+#include <windows.h>
using namespace ::rtl; // for OUString
using namespace ::com::sun::star; // for odk interfaces
@@ -36,96 +40,53 @@ using namespace ::com::sun::star::accessibility;
using namespace ::com::sun::star::awt;
-typedef sal_Int32 HWND;
-
#include "AccTopWindowListener.hxx"
#include "g_msacc.hxx"
-extern void FreeTopWindowListener();
-extern long GetMSComPtr(long hWnd, long lParam, long wParam);
-extern void handleWindowOpened_impl( long pAcc);
-
-
namespace my_sc_impl
{
- //extern Sequence< OUString > SAL_CALL getSupportedServiceNames_MSAAServiceImpl();
- //static OUString SAL_CALL getImplementationName_MSAAServiceImpl();
- //static Reference< XInterface > SAL_CALL create_MSAAServiceImpl(
- // Reference< XComponentContext > const & xContext )
- // SAL_THROW( () );
-/**
- * Method that returns the service name.
- * @param
- * @return Name sequence.
- */
static Sequence< OUString > getSupportedServiceNames_MSAAServiceImpl()
{
- static Sequence < OUString > *pNames = 0;
- if( ! pNames )
- {
- // MutexGuard guard( Mutex::getGlobalMutex() );
- if( !pNames )
- {
- static Sequence< OUString > seqNames(1);
- seqNames.getArray()[0] = OUString(RTL_CONSTASCII_USTRINGPARAM("com.sun.star.accessibility.MSAAService"));
- pNames = &seqNames;
- }
- }
- return *pNames;
+ Sequence< OUString > seqNames(1);
+ seqNames.getArray()[0] = "com.sun.star.accessibility.MSAAService";
+ return seqNames;
}
-/**
- * Method that returns the service name.
- * @param
- * @return Name sequence.
- */
static OUString getImplementationName_MSAAServiceImpl()
{
- static OUString *pImplName = 0;
- if( ! pImplName )
- {
- // MutexGuard guard( Mutex::getGlobalMutex() );
- if( ! pImplName )
- {
- static OUString implName( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.accessibility.my_sc_implementation.MSAAService") );
- pImplName = &implName;
- }
- }
- return *pImplName;
+ return OUString( "com.sun.star.accessibility.my_sc_implementation.MSAAService" );
}
-class MSAAServiceImpl : public ::cppu::WeakImplHelper3<
- XMSAAService, lang::XServiceInfo, lang::XInitialization >
+class MSAAServiceImpl : public ::cppu::WeakImplHelper4<
+ XMSAAService, lang::XServiceInfo,
+ lang::XInitialization, lang::XComponent >
{
OUString m_arg;
public:
- // focus on three given interfaces,
- // no need to implement XInterface, XTypeProvider, XWeak
+ // focus on four interfaces,
+ // no need to implement XInterface, XTypeProvider, XWeak etc.
MSAAServiceImpl ();
virtual ~MSAAServiceImpl( void );
+
// XInitialization will be called upon createInstanceWithArguments[AndContext]()
- virtual void SAL_CALL initialize( Sequence< Any > const & args )
- throw (Exception);
+ virtual void SAL_CALL initialize( Sequence< Any > const & args ) throw (Exception);
+
+ // XComponent - as used by VCL to lifecycle manage this bridge.
+ virtual void SAL_CALL dispose();
+ virtual void SAL_CALL addEventListener( const ::css::uno::Reference< ::css::lang::XEventListener >& ) { /* dummy */ }
+ virtual void SAL_CALL removeEventListener( const ::css::uno::Reference< ::css::lang::XEventListener >& ) { /* dummy */ }
+
// XMSAAService
- virtual sal_Int32 SAL_CALL getAccObjectPtr (long hWnd, long lParam, long wParam)
- throw (RuntimeException);
- virtual void SAL_CALL handleWindowOpened(sal_Int32)
- throw (RuntimeException);
+ virtual sal_Int32 SAL_CALL getAccObjectPtr (long hWnd, long lParam, long wParam);
+ virtual void SAL_CALL handleWindowOpened(sal_Int32);
+
// XServiceInfo
- virtual OUString SAL_CALL getImplementationName()
- throw (RuntimeException);
- virtual sal_Bool SAL_CALL supportsService( OUString const & serviceName )
- throw (RuntimeException);
- virtual Sequence< OUString > SAL_CALL getSupportedServiceNames()
- throw (RuntimeException);
+ virtual OUString SAL_CALL getImplementationName();
+ virtual sal_Bool SAL_CALL supportsService( OUString const & serviceName );
+ virtual Sequence< OUString > SAL_CALL getSupportedServiceNames();
};
-/**
- * Implemention of XInitialization.
- * @param
- * @return.
- */
void MSAAServiceImpl::initialize( Sequence< Any > const & args ) throw (Exception)
{
if (1 != args.getLength())
@@ -151,29 +112,24 @@ void MSAAServiceImpl::initialize( Sequence< Any > const & args ) throw (Exceptio
*/
sal_Int32 MSAAServiceImpl::getAccObjectPtr ( long hWnd, long lParam, long wParam) throw (RuntimeException)
{
- return GetMSComPtr(hWnd, lParam, wParam);
+ return GetMSComPtr( hWnd, lParam, wParam );
}
/**
- * Implemention of handleWindowOpened,the method will be invoked when a top window
- * opened and AT starts up.
+ * Implemention of handleWindowOpened, the method will be invoked when a
+ * top window is opened and AT starts up.
* @param
* @return
*/
-void MSAAServiceImpl::handleWindowOpened( sal_Int32 pAcc)
+void MSAAServiceImpl::handleWindowOpened( sal_Int32 nAcc)
{
- handleWindowOpened_impl(pAcc);
+ SAL_INFO( "iacc2", "Window opened " << nAcc );
+ handleWindowOpened_impl( nAcc );
}
-/**
- * Implemention of XServiceInfo.
- * @param
- * @return Implementataion name.
- */
OUString MSAAServiceImpl::getImplementationName() throw (RuntimeException)
{
- // unique implementation name
- return OUString( RTL_CONSTASCII_USTRINGPARAM("com.sun.star.accessibility.my_sc_impl.MSAAService") );
+ return OUString( "com.sun.star.accessibility.my_sc_impl.MSAAService" );
}
/**
@@ -184,7 +140,7 @@ OUString MSAAServiceImpl::getImplementationName() throw (RuntimeException)
sal_Bool MSAAServiceImpl::supportsService( OUString const & serviceName ) throw (RuntimeException)
{
// this object only supports one service, so the test is simple
- return serviceName.equalsAsciiL( RTL_CONSTASCII_STRINGPARAM("com.sun.star.accessibility.MSAAService") );
+ return serviceName == "com.sun.star.accessibility.MSAAService";
}
/**
@@ -197,47 +153,159 @@ Sequence< OUString > MSAAServiceImpl::getSupportedServiceNames() throw (RuntimeE
return getSupportedServiceNames_MSAAServiceImpl();
}
+static void AccessBridgeHandleExistingWindow(const Reference< XMSAAService > &xAccMgr,
+ Window *pWindow, bool bShow)
+{
+ if ( pWindow )
+ {
+ css::uno::Reference< css::accessibility::XAccessible > xAccessible;
+
+ SAL_INFO( "iacc2", "Decide whether to register existing window with IAccessible2" );
+
+ // Test for combo box - drop down floating windows first
+ Window * pParentWindow = pWindow->GetParent();
+
+ if ( pParentWindow )
+ {
+ try
+ {
+ // The parent window of a combo box floating window should have the role COMBO_BOX
+ css::uno::Reference< css::accessibility::XAccessible > xParentAccessible(pParentWindow->GetAccessible());
+ if ( xParentAccessible.is() )
+ {
+ css::uno::Reference< css::accessibility::XAccessibleContext > xParentAC( xParentAccessible->getAccessibleContext() );
+ if ( xParentAC.is() && (css::accessibility::AccessibleRole::COMBO_BOX == xParentAC->getAccessibleRole()) )
+ {
+ // O.k. - this is a combo box floating window corresponding to the child of role LIST of the parent.
+ // Let's not rely on a specific child order, just search for the child with the role LIST
+ sal_Int32 nCount = xParentAC->getAccessibleChildCount();
+ for ( sal_Int32 n = 0; (n < nCount) && !xAccessible.is(); n++)
+ {
+ css::uno::Reference< css::accessibility::XAccessible > xChild = xParentAC->getAccessibleChild(n);
+ if ( xChild.is() )
+ {
+ css::uno::Reference< css::accessibility::XAccessibleContext > xChildAC = xChild->getAccessibleContext();
+ if ( xChildAC.is() && (css::accessibility::AccessibleRole::LIST == xChildAC->getAccessibleRole()) )
+ {
+ xAccessible = xChild;
+ }
+ }
+ }
+ }
+ }
+ }
+ catch (::com::sun::star::uno::RuntimeException e)
+ {
+ // Ignore show events that throw DisposedExceptions in getAccessibleContext(),
+ // but keep revoking these windows in hide(s).
+ if (bShow)
+ return;
+ }
+ }
+
+ // We have to rely on the fact that Window::GetAccessible()->getAccessibleContext() returns a valid XAccessibleContext
+ // also for other menus than menubar or toplevel popup window. Otherwise we had to traverse the hierarchy to find the
+ // context object to this menu floater. This makes the call to Window->IsMenuFloatingWindow() obsolete.
+ if ( ! xAccessible.is() )
+ xAccessible = pWindow->GetAccessible();
+
+ assert( xAccMgr.is() );
+ if ( xAccessible.is() )
+ {
+ xAccMgr->handleWindowOpened( (long)xAccessible.get() );
+ SAL_INFO( "iacc2", "Decide whether to register existing window with IAccessible2" );
+ }
+ }
+}
+
+/*
+ * Setup and notify the OS of Accessible peers for all existing windows.
+ */
+static void AccessBridgeUpdateOldTopWindows( const Reference< XMSAAService > &xAccMgr )
+{
+ sal_uInt16 nTopWindowCount = (sal_uInt16)Application::GetTopWindowCount();
+
+ for ( sal_uInt16 i = 0; i < nTopWindowCount; i++ )
+ {
+ Window* pTopWindow = Application::GetTopWindow( i );
+ css::uno::Reference< css::accessibility::XAccessible > xAccessible = pTopWindow->GetAccessible();
+ if ( xAccessible.is() )
+ {
+ css::uno::Reference< css::accessibility::XAccessibleContext > xAC( xAccessible->getAccessibleContext() );
+ if ( xAC.is())
+ {
+ short role = xAC->getAccessibleRole();
+ if ( !xAC->getAccessibleName().isEmpty() )
+ AccessBridgeHandleExistingWindow( xAccMgr, pTopWindow, true );
+ }
+ }
+ }
+}
+
+static bool HasAtHook()
+{
+ sal_Int32 bIsRuning=0;
+ // BOOL WINAPI SystemParametersInfo(
+ // __in UINT uiAction,
+ // __in UINT uiParam,
+ // __inout PVOID pvParam,
+ // __in UINT fWinIni
+ // );
+ // pvParam must be BOOL (defined in MFC as int)
+ // End
+ return SystemParametersInfo( SPI_GETSCREENREADER, 0,
+ &bIsRuning, 0) && bIsRuning;
+}
+
/**
- * Static method that can create an entity of our MSAA Service
- * @param xContext No use here.
- * @return The object interface.
- */
+ * Static method that can create an entity of our MSAA Service
+ * @param xContext No use here.
+ * @return The object interface.
+ */
Reference< XInterface > SAL_CALL create_MSAAServiceImpl( Reference< XComponentContext > const & /*xContext*/ ) SAL_THROW( () )
{
- MSAAServiceImpl* xxx = new MSAAServiceImpl();
- //return static_cast< lang::XTypeProvider * >( xxx );
- Reference< XMSAAService > p( xxx );
- return p;
+ bool bRunWithoutAt = getenv("SAL_FORCE_IACCESSIBLE2");
+
+ if ( !HasAtHook() )
+ {
+ if ( !bRunWithoutAt )
+ {
+ SAL_INFO("iacc2", "Apparently no running AT -> not enabling IAccessible2 integration");
+ return Reference< XMSAAService >();
+ }
+ }
+
+ Reference< XMSAAService > xAccMgr( new MSAAServiceImpl() );
+
+ AccessBridgeUpdateOldTopWindows( xAccMgr );
+
+ SAL_INFO("iacc2", "Created new IAccessible2 service impl.");
+
+ return xAccMgr;
}
-/**
- * Constructor.
- * @param
- * @return
- */
MSAAServiceImpl::MSAAServiceImpl()
{
Reference< XExtendedToolkit > xToolkit =
Reference< XExtendedToolkit >(Application::GetVCLToolkit(), UNO_QUERY);
- if(xToolkit.is())
+ if( xToolkit.is() )
{
- AccTopWindowListener *accListener;
- accListener = new AccTopWindowListener();
- g_pTop = accListener;
- Reference< XTopWindowListener> x(accListener);
- xToolkit->addTopWindowListener(x);
+ g_pTop = new AccTopWindowListener();
+ Reference< XTopWindowListener> xRef( g_pTop );
+ xToolkit->addTopWindowListener( xRef );
+ SAL_INFO( "iacc2", "successfully connected to the toolkit event hose" );
}
+ else
+ SAL_WARN( "iacc2", "No VCL toolkit interface to listen to for events");
}
-/**
- * Static method that can create an entity of our MSAA Service
- * @param Destructor
- * @return
- */
MSAAServiceImpl::~MSAAServiceImpl()
{
+}
+void MSAAServiceImpl::dispose()
+{
// As all folders and streams contain references to their parents,
// we must remove these references so that they will be deleted when
// the hash_map of the root folder is cleared, releasing all subfolders
@@ -245,8 +313,6 @@ MSAAServiceImpl::~MSAAServiceImpl()
// released when this destructor completes, the folder tree should be
// deleted fully (and automagically).
FreeTopWindowListener();
-
-
}
}
@@ -258,7 +324,8 @@ static struct ::cppu::ImplementationEntry s_component_entries [] =
{
{
create_MSAAServiceImpl, getImplementationName_MSAAServiceImpl,
- getSupportedServiceNames_MSAAServiceImpl, ::cppu::createSingleComponentFactory,
+ getSupportedServiceNames_MSAAServiceImpl,
+ ::cppu::createSingleComponentFactory,
0, 0
},
{ 0, 0, 0, 0, 0, 0 }
@@ -267,12 +334,12 @@ static struct ::cppu::ImplementationEntry s_component_entries [] =
extern "C"
{
- SAL_DLLPUBLIC_EXPORT void SAL_CALL component_getImplementationEnvironment(
+ SAL_DLLPUBLIC_EXPORT void SAL_CALL iacc2_component_getImplementationEnvironment(
sal_Char const ** ppEnvTypeName, uno_Environment ** /*ppEnv*/ )
{
*ppEnvTypeName = CPPU_CURRENT_LANGUAGE_BINDING_NAME;
}
- SAL_DLLPUBLIC_EXPORT void * SAL_CALL component_getFactory(
+ SAL_DLLPUBLIC_EXPORT void * SAL_CALL iacc2_component_getFactory(
sal_Char const * implName, lang::XMultiServiceFactory * xMgr,
registry::XRegistryKey * xRegistry )
{
generated by cgit v1.2.1 (git 2.18.0) at 2023-03-25 05:28:44 +0000