INTEGRATION: CWS uaa03 (1.1.2); FILE ADDED

2003/05/20 08:46:23 obr 1.1.2.1: #i14623# ComboBox.java Tree.java
COLLAPSED state has been removed from UAA

#109167#,#108096# AccessBridge.java WindowsAccessBridgeAdapter.java AccessibleObjectFactory.java
Replaced the XAccessibleTopWindowMap interface with a jni component that registers at VCL on Windows to retrieve the necessary events for registering popup windows and to extract the HWND for every window opened.

The pure java bridge now uses XTopWindowListener and XExtendedToolkit to retrieve WINDOW_OPENED and WINDOW_CLOSED events.

1 files changed, 353 insertions, 0 deletions

diff --git a/accessibility/bridge/source/java/WindowsAccessBridgeAdapter.cxx b/accessibility/bridge/source/java/WindowsAccessBridgeAdapter.cxx
new file mode 100644
index 000000000000..db634b3d9117
--- /dev/null
+++ b/accessibility/bridge/source/java/WindowsAccessBridgeAdapter.cxx
@@ -0,0 +1,353 @@
+/*************************************************************************
+ *
+ *  $RCSfile: WindowsAccessBridgeAdapter.cxx,v $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (the "License"); You may not use this file
+ *  except in compliance with the License. You may obtain a copy of the
+ *  License at http://www.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+//------------------------------------------------------------------------
+// includes
+//------------------------------------------------------------------------
+
+#include <WindowsAccessBridgeAdapter.h>
+
+#ifndef _RTL_PROCESS_H_
+#include <rtl/process.h>
+#endif
+
+#ifndef _LINK_HXX
+#include <tools/link.hxx>
+#endif
+
+#ifndef _SVAPP_HXX
+#include <vcl/svapp.hxx>
+#endif
+
+#ifndef _SV_WINDOW_HXX
+#include <vcl/window.hxx>
+#endif
+
+#include <tools/prewin.h>
+#include <windows.h>
+#include <tools/postwin.h>
+
+#ifndef _SV_SYSDATA_HXX
+#include <vcl/sysdata.hxx>
+#endif
+
+#ifndef _UNO_CURRENT_CONTEXT_HXX_
+#include <uno/current_context.hxx>
+#endif
+
+#ifndef _UNO_ENVIRONMENT_H_
+#include <uno/environment.h>
+#endif
+
+#ifndef _UNO_MAPPING_HXX_
+#include <uno/mapping.hxx>
+#endif
+
+#ifndef _COM_SUN_STAR_ACCESSIBILITY_ACCESSIBLEROLE_HPP_
+#include <com/sun/star/accessibility/AccessibleRole.hpp>
+#endif
+
+#ifndef _COM_SUN_STAR_ACCESSIBILITY_XACCESSIBLE_HPP_
+#include <com/sun/star/accessibility/XAccessible.hpp>
+#endif
+
+#ifndef _JVMACCESS_VIRTUALMACHINE_HXX_
+#include "jvmaccess/virtualmachine.hxx"
+#endif
+
+#include <osl/diagnose.h>
+
+using namespace ::rtl;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::accessibility;
+
+long VCLEventListenerLinkFunc(void * pInst, void * pData);
+
+//------------------------------------------------------------------------
+// global vatiables
+//------------------------------------------------------------------------
+
+Link g_aEventListenerLink(NULL, VCLEventListenerLinkFunc);
+
+rtl::Reference< jvmaccess::VirtualMachine > g_xVirtualMachine;
+typelib_InterfaceTypeDescription * g_pTypeDescription = NULL;
+Mapping g_unoMapping;
+
+jclass g_jcWindowsAccessBridgeAdapter = NULL;
+jmethodID g_jmRegisterTopWindow = 0;
+jmethodID g_jmRevokeTopWindow = 0;
+
+//------------------------------------------------------------------------
+// functions
+//------------------------------------------------------------------------
+
+JNIEXPORT jint JNICALL JNI_OnLoad(JavaVM *jvm, void *reserved)
+{
+    return JNI_VERSION_1_2;
+}
+
+JNIEXPORT jbyteArray JNICALL
+Java_org_openoffice_accessibility_WindowsAccessBridgeAdapter_getProcessID(JNIEnv *pJNIEnv, jclass clazz)
+{
+    // Initialize global class and method references
+    g_jcWindowsAccessBridgeAdapter =
+        reinterpret_cast< jclass > (pJNIEnv->NewGlobalRef(clazz));
+    if (NULL == g_jcWindowsAccessBridgeAdapter) {
+        return 0; /* jni error occured */
+    }
+    g_jmRegisterTopWindow =
+        pJNIEnv->GetStaticMethodID(clazz, "registerTopWindow", "(ILcom/sun/star/accessibility/XAccessible;)V");
+    if (0 == g_jmRegisterTopWindow) {
+        return 0; /* jni error occured */
+    }
+    g_jmRevokeTopWindow =
+        pJNIEnv->GetStaticMethodID(clazz, "revokeTopWindow", "(ILcom/sun/star/accessibility/XAccessible;)V");
+    if (0 == g_jmRevokeTopWindow) {
+        return 0; /* jni error occured */
+    }
+
+    // Use the special protocol of XJavaVM.getJavaVM:  If the passed in
+    // process ID has an extra 17th byte of value zero, the returned any
+    // contains a pointer to a jvmaccess::VirtualMachine, instead of the
+    // underlying JavaVM pointer:
+    jbyte processID[17];
+    rtl_getGlobalProcessId(reinterpret_cast<sal_uInt8 *> (processID));
+    processID[16] = 0;
+
+    // Copy the result into a java byte[] and return.
+    jbyteArray jbaProcessID = pJNIEnv->NewByteArray(17);
+    pJNIEnv->SetByteArrayRegion(jbaProcessID, 0, 17, processID);
+    return jbaProcessID;
+}
+
+JNIEXPORT jboolean JNICALL
+Java_org_openoffice_accessibility_WindowsAccessBridgeAdapter_createMapping(JNIEnv *pJNIEnv, jclass clazz, jlong pointer)
+{
+    uno_Environment * pJava_environment = NULL;
+    uno_Environment * pUno_environment = NULL;
+
+    try {
+        // We get a non-refcounted pointer to a jvmaccess::VirtualMachine
+        // from the XJavaVM service (the pointer is guaranteed to be valid
+        // as long as our reference to the XJavaVM service lasts), and
+        // convert the non-refcounted pointer into a refcounted one
+        // immediately:
+        g_xVirtualMachine = reinterpret_cast< jvmaccess::VirtualMachine * >(pointer);
+
+        if ( g_xVirtualMachine.is() )
+        {
+            OUString sJava(RTL_CONSTASCII_USTRINGPARAM("java"));
+            uno_getEnvironment(&pJava_environment, sJava.pData, g_xVirtualMachine.get());
+
+            OUString sCppu_current_lb_name(RTL_CONSTASCII_USTRINGPARAM(CPPU_CURRENT_LANGUAGE_BINDING_NAME));
+            uno_getEnvironment(&pUno_environment, sCppu_current_lb_name.pData, NULL);
+
+            if ( pJava_environment && pUno_environment )
+            {
+                g_unoMapping = Mapping(pUno_environment, pJava_environment);
+                getCppuType((Reference< XAccessible > *) 0).getDescription((typelib_TypeDescription **) & g_pTypeDescription);
+            }
+
+            if ( pJava_environment )
+            {
+                // release java environment
+                pJava_environment->release(pJava_environment);
+                pJava_environment = NULL;
+            }
+
+            if ( pUno_environment )
+            {
+                // release uno environment
+                pUno_environment->release(pUno_environment);
+                pUno_environment = NULL;
+            }
+        }
+    }
+
+    catch ( RuntimeException e)
+    {
+        OSL_TRACE("RuntimeException caught while initializing the mapping");
+    }
+
+    if ( (0 != g_jmRegisterTopWindow) && (0 != g_jmRevokeTopWindow) )
+    {
+        ::Application::AddEventListener(g_aEventListenerLink);
+    }
+    return JNI_TRUE;
+}
+
+JNIEXPORT void JNICALL JNI_OnUnload(JavaVM *jvm, void *reserved)
+{
+    ::Application::RemoveEventListener(g_aEventListenerLink);
+
+    if ( NULL != g_jcWindowsAccessBridgeAdapter )
+    {
+        JNIEnv * pJNIEnv;
+        if ( ! jvm->GetEnv((void **) &pJNIEnv, JNI_VERSION_1_2) )
+        {
+            pJNIEnv->DeleteGlobalRef(g_jcWindowsAccessBridgeAdapter);
+            g_jcWindowsAccessBridgeAdapter = NULL;
+        }
+    }
+
+    if ( NULL != g_pTypeDescription )
+    {
+        typelib_typedescription_release( reinterpret_cast< typelib_TypeDescription * > (g_pTypeDescription) );
+        g_pTypeDescription = NULL;
+    }
+
+    g_unoMapping.clear();
+    g_xVirtualMachine.clear();
+}
+
+HWND GetHWND(Window * pWindow)
+{
+    const SystemEnvData * pEnvData = pWindow->GetSystemData();
+    if (pEnvData != NULL)
+    {
+        return pEnvData->hWnd;
+    }
+    return (HWND) -1;
+}
+
+void handleWindowEvent(Window * pWindow, bool bShow)
+{
+    if ( pWindow && pWindow->IsTopWindow() )
+    {
+        Reference< XAccessible > xAccessible;
+
+        // Test for combo box - drop down floating windows first
+        Window * pParentWindow = pWindow->GetParent();
+
+        if ( pParentWindow )
+        {
+            // The parent window of a combo box floating window should have the role COMBO_BOX
+            Reference< XAccessible > xParentAccessible(pParentWindow->GetAccessible());
+            if ( xParentAccessible.is() )
+            {
+                Reference< XAccessibleContext > xParentAC(xParentAccessible->getAccessibleContext());
+                if ( xParentAC.is() && (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++)
+                    {
+                        Reference< XAccessible > xChild = xParentAC->getAccessibleChild(n);
+                        if ( xChild.is() )
+                        {
+                            Reference< XAccessibleContext > xChildAC = xChild->getAccessibleContext();
+                            if ( xChildAC.is() && (AccessibleRole::LIST == xChildAC->getAccessibleRole()) )
+                            {
+                                xAccessible = xChild;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        // 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();
+
+        if ( xAccessible.is() && g_unoMapping.is() )
+        {
+            jobject * joXAccessible = reinterpret_cast < jobject * > (g_unoMapping.mapInterface(
+                xAccessible.get(), g_pTypeDescription));
+
+            if ( NULL != joXAccessible )
+            {
+                jvmaccess::VirtualMachine::AttachGuard aGuard(g_xVirtualMachine);
+                JNIEnv * pJNIEnv = aGuard.getEnvironment();
+
+                if ( NULL != pJNIEnv )
+                {
+                    // g_jmRegisterTopWindow and g_jmRevokeTopWindow are ensured to be != 0 - otherwise
+                    // the event listener would not have been attached.
+                    pJNIEnv->CallStaticVoidMethod(g_jcWindowsAccessBridgeAdapter,
+                        (bShow) ? g_jmRegisterTopWindow : g_jmRevokeTopWindow,
+                        (jint) GetHWND(pWindow), joXAccessible );
+
+                    // Clear any exception that might have been occured.
+                    if (pJNIEnv->ExceptionCheck()) {
+                        pJNIEnv->ExceptionClear();
+                    }
+                }
+            }
+        }
+    }
+}
+
+long VCLEventListenerLinkFunc(void * pInst, void * pData)
+{
+    ::VclSimpleEvent const * pEvent = (::VclSimpleEvent const *) pData;
+
+    switch (pEvent->GetId())
+    {
+    case VCLEVENT_WINDOW_SHOW:
+        handleWindowEvent(((::VclWindowEvent const *) pEvent)->GetWindow(), true);
+        break;
+    case VCLEVENT_WINDOW_HIDE:
+        handleWindowEvent(((::VclWindowEvent const *) pEvent)->GetWindow(), false);
+        break;
+    }
+
+    return 0;
+}