diff options
Diffstat (limited to 'winaccessibility/source/service/AccTopWindowListener.cxx')
| -rw-r--r-- | winaccessibility/source/service/AccTopWindowListener.cxx | 321 |
1 files changed, 321 insertions, 0 deletions
diff --git a/winaccessibility/source/service/AccTopWindowListener.cxx b/winaccessibility/source/service/AccTopWindowListener.cxx new file mode 100644 index 000000000000..2cf92bcdb757 --- /dev/null +++ b/winaccessibility/source/service/AccTopWindowListener.cxx @@ -0,0 +1,321 @@ +/************************************************************** + * + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * + *************************************************************/ + +#include <cppuhelper/bootstrap.hxx> +#include <com/sun/star/bridge/XUnoUrlResolver.hpp> +#include <com/sun/star/lang/XMultiServiceFactory.hpp> +#include <vcl/window.hxx> +#include <toolkit/awt/Vclxwindow.hxx> + +#ifndef _SV_SYSDATA_HXX +#if defined( WIN ) || defined( WNT ) || defined( OS2 ) +typedef sal_Int32 HWND; +typedef sal_Int32 HMENU; +typedef sal_Int32 HDC; +typedef void *PVOID; +typedef PVOID HANDLE; +typedef HANDLE HFONT; +#endif +#include <vcl/sysdata.hxx> +#endif + +#include "AccTopWindowListener.hxx" +#include "unomsaaevent.hxx" + +#include <com/sun/star/awt/XExtendedToolkit.hpp> +#include <com/sun/star/uno/XInterface.hpp> +#include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp> +#include <com/sun/star/accessibility/XAccessibleEventListener.hpp> +#include <com/sun/star/accessibility/XAccessibleComponent.hpp> +#include <com/sun/star/accessibility/AccessibleRole.hpp> +#include <com/sun/star/accessibility/AccessibleStateType.hpp> + +using namespace com::sun::star::uno; +using namespace com::sun::star::lang; +using namespace com::sun::star::bridge; +using namespace com::sun::star::awt; +using namespace rtl; +using namespace cppu; +////////////////////////////////////////////////////////////////////// +// Construction/Destruction +////////////////////////////////////////////////////////////////////// + +AccTopWindowListener* g_pTop = NULL; +//when proccess exit, call FreeTopWindowListener() in svmain +void FreeTopWindowListener() +{ + if( g_pTop ) + { + g_pTop->release(); + g_pTop = NULL; + } +} + +/** + * As a global method to invoke the handleWindowOpened() method + */ +void handleWindowOpened_impl(long pAcc) +{ + if( g_pTop && pAcc != NULL ) + g_pTop->handleWindowOpened( (com::sun::star::accessibility::XAccessible*)((void*)pAcc) ); +} + +/** + * For the new opened window, generate all the UNO accessible's object, COM object and add + * accessible listener to monitor all these objects. + * @param pAccessible the accessible of the new opened window + */ +void AccTopWindowListener::handleWindowOpened( com::sun::star::accessibility::XAccessible* pAccessible ) +{ + //get SystemData from window + VCLXWindow* pvclwindow = (VCLXWindow*)pAccessible; + Window* window = pvclwindow->GetWindow(); + // The SalFrame of window may be destructed at this time + const SystemEnvData* systemdata = NULL; + try + { + systemdata = window->GetSystemData(); + } + catch(...) + { + systemdata = NULL; + } + Reference<com::sun::star::accessibility::XAccessibleContext> xContext(pAccessible->getAccessibleContext(),UNO_QUERY); + if(!xContext.is()) + { + return; + } + com::sun::star::accessibility::XAccessibleContext* pAccessibleContext = xContext.get(); + //Only AccessibleContext exist, add all listeners + if(pAccessibleContext != NULL && systemdata != NULL) + { + accManagerAgent.SaveTopWindowHandle((HWND)systemdata->hWnd, pAccessible); + + AddAllListeners(pAccessible,NULL,(HWND)systemdata->hWnd); + + if( window->GetStyle() & WB_MOVEABLE ) + accManagerAgent.IncreaseState( pAccessible, -1 /* U_MOVEBLE */ ); + + short role = pAccessibleContext->getAccessibleRole(); + + + if (role == com::sun::star::accessibility::AccessibleRole::POPUP_MENU || + role == com::sun::star::accessibility::AccessibleRole::MENU ) + { + accManagerAgent.NotifyAccEvent(UM_EVENT_MENUPOPUPSTART, pAccessible); + } + + if (role == com::sun::star::accessibility::AccessibleRole::FRAME || + role == com::sun::star::accessibility::AccessibleRole::DIALOG || + role == com::sun::star::accessibility::AccessibleRole::WINDOW || + role == com::sun::star::accessibility::AccessibleRole::ALERT) + { + accManagerAgent.NotifyAccEvent(UM_EVENT_SHOW, pAccessible); + } + } +} + +AccTopWindowListener::AccTopWindowListener(): + accManagerAgent(), + m_refcount(1) +{ +} + +AccTopWindowListener::~AccTopWindowListener() +{ +} + +/** + * It is invoked when a new window is opened, the source of this EventObject is the window + */ +void AccTopWindowListener::windowOpened( const ::com::sun::star::lang::EventObject& e ) throw (::com::sun::star::uno::RuntimeException) +{ + if ( !e.Source.is()) + { + return; + } + + Reference< com::sun::star::accessibility::XAccessible > xAccessible ( e.Source, UNO_QUERY ); + com::sun::star::accessibility::XAccessible* pAccessible = xAccessible.get(); + if ( pAccessible == NULL) + { + return; + } + + handleWindowOpened(pAccessible); + +} + +/** + * Add the accessible event listener to object and all its children objects. + * @param pAccessible the accessible object + * @param pParentXAcc the parent of current accessible object + * @param pWND the handle of top window which current object resides + */ +void AccTopWindowListener::AddAllListeners(com::sun::star::accessibility::XAccessible* pAccessible, com::sun::star::accessibility::XAccessible* pParentXAcc, HWND pWND) +{ + Reference<com::sun::star::accessibility::XAccessibleContext> xContext(pAccessible->getAccessibleContext(),UNO_QUERY); + if(!xContext.is()) + { + return; + } + com::sun::star::accessibility::XAccessibleContext* pAccessibleContext = xContext.get(); + if(pAccessibleContext == NULL) + { + return; + } + + accManagerAgent.InsertAccObj( pAccessible, pParentXAcc,pWND ); + + if (!accManagerAgent.IsContainer(pAccessible)) + { + return; + } + + + short role = pAccessibleContext->getAccessibleRole(); + if(com::sun::star::accessibility::AccessibleRole::DOCUMENT == role ) + { + if(accManagerAgent.IsStateManageDescendant(pAccessible)) + { + return ; + } + } + + + int count = pAccessibleContext->getAccessibleChildCount(); + for (int i=0;i<count;i++) + { + Reference<com::sun::star::accessibility::XAccessible> mxAccessible + = pAccessibleContext->getAccessibleChild(i); + + com::sun::star::accessibility::XAccessible* mpAccessible = mxAccessible.get(); + if(mpAccessible != NULL) + { + Reference<com::sun::star::accessibility::XAccessibleContext> mxAccessibleContext + = mpAccessible->getAccessibleContext(); + com::sun::star::accessibility::XAccessibleContext* mpContext = mxAccessibleContext.get(); + if(mpContext != NULL) + { + //fprintf(output, "go on add child's children event listener\n"); + AddAllListeners(mpAccessible,pAccessible,pWND); + } + } + } +} + +void AccTopWindowListener::windowClosing( const ::com::sun::star::lang::EventObject& e ) throw (::com::sun::star::uno::RuntimeException) +{ +} + +/** + * Invoke this method when the top window is closed, remove all the objects and its children + * from current manager's cache, and remove the COM object and the accessible event listener + * assigned to the accessible objects. + */ +void AccTopWindowListener::windowClosed( const ::com::sun::star::lang::EventObject& e ) throw (::com::sun::star::uno::RuntimeException) +{ + if ( !e.Source.is()) + { + return; + } + Reference< com::sun::star::accessibility::XAccessible > xAccessible ( e.Source, UNO_QUERY ); + com::sun::star::accessibility::XAccessible* pAccessible = xAccessible.get(); + if ( pAccessible == NULL) + { + return; + } + + + VCLXWindow* pvclwindow = (VCLXWindow*)pAccessible; + Window* window = pvclwindow->GetWindow(); + const SystemEnvData* systemdata=window->GetSystemData(); + + Reference<com::sun::star::accessibility::XAccessibleContext> xContext(pAccessible->getAccessibleContext(),UNO_QUERY); + if(!xContext.is()) + { + return; + } + com::sun::star::accessibility::XAccessibleContext* pAccessibleContext = xContext.get(); + + short role = -1; + if(pAccessibleContext != NULL) + { + role = pAccessibleContext->getAccessibleRole(); + + if (role == com::sun::star::accessibility::AccessibleRole::POPUP_MENU || + role == com::sun::star::accessibility::AccessibleRole::MENU) + { + accManagerAgent.NotifyAccEvent(UM_EVENT_MENUPOPUPEND, pAccessible); + } + } + + + accManagerAgent.DeleteChildrenAccObj( pAccessible ); + if( role != com::sun::star::accessibility::AccessibleRole::POPUP_MENU ) + accManagerAgent.DeleteAccObj( pAccessible ); + +} + +void AccTopWindowListener::windowMinimized( const ::com::sun::star::lang::EventObject& ) throw (::com::sun::star::uno::RuntimeException) +{ +} + +void AccTopWindowListener::windowNormalized( const ::com::sun::star::lang::EventObject& ) throw (::com::sun::star::uno::RuntimeException) +{ +} + +void AccTopWindowListener::windowActivated( const ::com::sun::star::lang::EventObject& ) throw (::com::sun::star::uno::RuntimeException) +{ +} + +void AccTopWindowListener::windowDeactivated( const ::com::sun::star::lang::EventObject& ) throw (::com::sun::star::uno::RuntimeException) +{ +} + +void AccTopWindowListener::disposing( const ::com::sun::star::lang::EventObject& ) throw (::com::sun::star::uno::RuntimeException) +{ +} + +//need to investigate further +::com::sun::star::uno::Any SAL_CALL AccTopWindowListener::queryInterface( const ::com::sun::star::uno::Type& aType ) throw (::com::sun::star::uno::RuntimeException) +{ + if (aType.equals( ::getCppuType( (Reference< com::sun::star::awt::XTopWindowListener> const *)0 ) )) + { + Reference< com::sun::star::awt::XTopWindowListener> xTopListener( static_cast< com::sun::star::awt::XTopWindowListener* >(this)); + return makeAny(xTopListener); + } + return Any(); +} + +void AccTopWindowListener::acquire( ) throw () +{ + ::osl_incrementInterlockedCount( &m_refcount ); +} + +void AccTopWindowListener::release() throw () +{ + // thread-safe decrementation of reference count + if (0 == ::osl_decrementInterlockedCount( &m_refcount )) + { + delete this; // shutdown this object + } +} |