/home/maarten/src/libreoffice/core/include/rtl/ref.hxx

Bug Summary

File:	home/maarten/src/libreoffice/core/include/rtl/ref.hxx
Warning:	line 192, column 9 Use of memory after it is freed

Annotated Source Code

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clang -cc1 -cc1 -triple x86_64-unknown-linux-gnu -analyze -disable-free -disable-llvm-verifier -discard-value-names -main-file-name vclxaccessiblecomponent.cxx -analyzer-store=region -analyzer-opt-analyze-nested-blocks -analyzer-checker=core -analyzer-checker=apiModeling -analyzer-checker=unix -analyzer-checker=deadcode -analyzer-checker=cplusplus -analyzer-checker=security.insecureAPI.UncheckedReturn -analyzer-checker=security.insecureAPI.getpw -analyzer-checker=security.insecureAPI.gets -analyzer-checker=security.insecureAPI.mktemp -analyzer-checker=security.insecureAPI.mkstemp -analyzer-checker=security.insecureAPI.vfork -analyzer-checker=nullability.NullPassedToNonnull -analyzer-checker=nullability.NullReturnedFromNonnull -analyzer-output plist -w -setup-static-analyzer -mrelocation-model pic -pic-level 2 -mframe-pointer=all -fmath-errno -fno-rounding-math -mconstructor-aliases -munwind-tables -target-cpu x86-64 -fno-split-dwarf-inlining -debugger-tuning=gdb -resource-dir /usr/lib64/clang/11.0.0 -D BOOST_ERROR_CODE_HEADER_ONLY -D BOOST_SYSTEM_NO_DEPRECATED -D CPPU_ENV=gcc3 -D LINUX -D OSL_DEBUG_LEVEL=1 -D SAL_LOG_INFO -D SAL_LOG_WARN -D UNIX -D UNX -D X86_64 -D _PTHREADS -D _REENTRANT -D TOOLKIT_DLLIMPLEMENTATION -D SVT_DLL_NAME="libsvtlo.so" -D EXCEPTIONS_ON -D LIBO_INTERNAL_ONLY -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/epoxy/include -I /home/maarten/src/libreoffice/core/external/boost/include -I /home/maarten/src/libreoffice/core/workdir/UnpackedTarball/boost -I /home/maarten/src/libreoffice/core/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include -I /usr/lib/jvm/java-11-openjdk-11.0.9.10-0.0.ea.fc33.x86_64/include/linux -I /home/maarten/src/libreoffice/core/config_host -I /home/maarten/src/libreoffice/core/toolkit/inc -I /home/maarten/src/libreoffice/core/toolkit/source -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/udkapi/normal -I /home/maarten/src/libreoffice/core/workdir/UnoApiHeadersTarget/offapi/normal -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10 -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/x86_64-redhat-linux -internal-isystem /usr/bin/../lib/gcc/x86_64-redhat-linux/10/../../../../include/c++/10/backward -internal-isystem /usr/local/include -internal-isystem /usr/lib64/clang/11.0.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O0 -Wno-missing-braces -std=c++17 -fdeprecated-macro -fdebug-compilation-dir /home/maarten/src/libreoffice/core -ferror-limit 19 -fvisibility hidden -fvisibility-inlines-hidden -stack-protector 2 -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -debug-info-kind=constructor -analyzer-output=html -faddrsig -o /home/maarten/tmp/wis/scan-build-libreoffice/output/report/2020-10-07-141433-9725-1 -x c++ /home/maarten/src/libreoffice/core/toolkit/source/awt/vclxaccessiblecomponent.cxx

/home/maarten/src/libreoffice/core/toolkit/source/awt/vclxaccessiblecomponent.cxx

→

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
*   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 .
*/

20#include <com/sun/star/accessibility/AccessibleRole.hpp>
21#include <com/sun/star/accessibility/AccessibleStateType.hpp>
22#include <com/sun/star/accessibility/AccessibleEventId.hpp>
23#include <com/sun/star/accessibility/AccessibleRelationType.hpp>
24#include <com/sun/star/lang/IndexOutOfBoundsException.hpp>
25#include <cppuhelper/supportsservice.hxx>
26#include <i18nlangtag/languagetag.hxx>
27#include <toolkit/awt/vclxaccessiblecomponent.hxx>
28#include <toolkit/awt/vclxwindow.hxx>
29#include <toolkit/helper/convert.hxx>
30#include <toolkit/awt/vclxfont.hxx>
31#include <vcl/toolkit/dialog.hxx>
32#include <vcl/vclevent.hxx>
33#include <vcl/window.hxx>
34#include <vcl/toolkit/edit.hxx>
35#include <vcl/settings.hxx>
36#include <tools/debug.hxx>
37#include <unotools/accessiblestatesethelper.hxx>
38#include <unotools/accessiblerelationsethelper.hxx>
39#include <vcl/svapp.hxx>
40#include <vcl/menu.hxx>

42using namespace ::com::sun::star;
43using namespace ::comphelper;

45VCLXAccessibleComponent::VCLXAccessibleComponent( VCLXWindow* pVCLXWindow )
46{
  m_xVCLXWindow = pVCLXWindow;

  DBG_ASSERT( pVCLXWindow->GetWindow(), "VCLXAccessibleComponent - no window!" )do { if (true && (!(pVCLXWindow->GetWindow()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.tools"), ("/home/maarten/src/libreoffice/core/toolkit/source/awt/vclxaccessiblecomponent.cxx"
 ":" "49" ": "), "%s", "VCLXAccessibleComponent - no window!"
); } } while (false);
1
Calling 'VCLXWindow::GetWindow'→
10
←
Returning from 'VCLXWindow::GetWindow'→
11
←
Calling implicit destructor for 'VclPtr<vcl::Window>'→
12
←
Calling '~Reference'→
19
←
Returning from '~Reference'→
20
←
Returning from destructor for 'VclPtr<vcl::Window>'→
21
←
Taking true branch→
22
←
Loop condition is false.  Exiting loop→
  m_xEventSource = pVCLXWindow->GetWindow();
23
←
Calling 'VCLXWindow::GetWindow'→
  if ( m_xEventSource )
  {
      m_xEventSource->AddEventListener( LINK( this, VCLXAccessibleComponent, WindowEventListener )::tools::detail::makeLink( ::tools::detail::castTo<VCLXAccessibleComponent
 *>(this), &VCLXAccessibleComponent::LinkStubWindowEventListener
) );
      m_xEventSource->AddChildEventListener( LINK( this, VCLXAccessibleComponent, WindowChildEventListener )::tools::detail::makeLink( ::tools::detail::castTo<VCLXAccessibleComponent
 *>(this), &VCLXAccessibleComponent::LinkStubWindowChildEventListener
) );
  }

  // announce the XAccessible of our creator to the base class
  lateInit( pVCLXWindow );
59}

61VCLXWindow* VCLXAccessibleComponent::GetVCLXWindow() const
62{
  return m_xVCLXWindow.get();
64}

66void VCLXAccessibleComponent::DisconnectEvents()
67{
  if ( m_xEventSource )
  {
      m_xEventSource->RemoveEventListener( LINK( this, VCLXAccessibleComponent, WindowEventListener )::tools::detail::makeLink( ::tools::detail::castTo<VCLXAccessibleComponent
 *>(this), &VCLXAccessibleComponent::LinkStubWindowEventListener
) );
      m_xEventSource->RemoveChildEventListener( LINK( this, VCLXAccessibleComponent, WindowChildEventListener )::tools::detail::makeLink( ::tools::detail::castTo<VCLXAccessibleComponent
 *>(this), &VCLXAccessibleComponent::LinkStubWindowChildEventListener
) );
      m_xEventSource.clear();
  }
74}

76VCLXAccessibleComponent::~VCLXAccessibleComponent()
77{
  ensureDisposed();
  DisconnectEvents();
80}

82IMPLEMENT_FORWARD_XINTERFACE3( VCLXAccessibleComponent, OAccessibleExtendedComponentHelper, OAccessibleImplementationAccess, VCLXAccessibleComponent_BASE )void VCLXAccessibleComponent::acquire() throw() { OAccessibleExtendedComponentHelper
::acquire(); } void VCLXAccessibleComponent::release() throw(
) { OAccessibleExtendedComponentHelper::release(); } css::uno
::Any VCLXAccessibleComponent::queryInterface( const css::uno
::Type& _rType ) { css::uno::Any aReturn = OAccessibleExtendedComponentHelper
::queryInterface( _rType ); if ( !aReturn.hasValue() ) { aReturn
 = OAccessibleImplementationAccess::queryInterface( _rType );
 if ( !aReturn.hasValue() ) aReturn = VCLXAccessibleComponent_BASE
::queryInterface( _rType ); } return aReturn; }
83IMPLEMENT_FORWARD_XTYPEPROVIDER3( VCLXAccessibleComponent, OAccessibleExtendedComponentHelper, OAccessibleImplementationAccess, VCLXAccessibleComponent_BASE )css::uno::Sequence< css::uno::Type > VCLXAccessibleComponent
::getTypes( ) { return ::comphelper::concatSequences( OAccessibleExtendedComponentHelper
::getTypes(), OAccessibleImplementationAccess::getTypes(), VCLXAccessibleComponent_BASE
::getTypes() ); } css::uno::Sequence< sal_Int8 > VCLXAccessibleComponent
::getImplementationId( ) { return css::uno::Sequence<sal_Int8
>(); }

85OUString VCLXAccessibleComponent::getImplementationName()
86{
  return "com.sun.star.comp.toolkit.AccessibleWindow";
88}

90sal_Bool VCLXAccessibleComponent::supportsService( const OUString& rServiceName )
91{
  return cppu::supportsService(this, rServiceName);
93}

95uno::Sequence< OUString > VCLXAccessibleComponent::getSupportedServiceNames()
96{
  uno::Sequence< OUString > aNames { "com.sun.star.awt.AccessibleWindow" };
  return aNames;
99}

101IMPL_LINK( VCLXAccessibleComponent, WindowEventListener, VclWindowEvent&, rEvent, void )void VCLXAccessibleComponent::LinkStubWindowEventListener(void
 * instance, VclWindowEvent& data) { return static_cast<
VCLXAccessibleComponent *>(instance)->WindowEventListener
(data); } void VCLXAccessibleComponent::WindowEventListener(VclWindowEvent
& rEvent)
102{
  /* Ignore VclEventId::WindowEndPopupMode, because the UNO accessibility wrapper
   * might have been destroyed by the previous VCLEventListener (if no AT tool
   * is running), e.g. sub-toolbars in impress.
   */
  if ( m_xVCLXWindow.is() /* #122218# */ && (rEvent.GetId() != VclEventId::WindowEndPopupMode) )
  {
      DBG_ASSERT( rEvent.GetWindow(), "Window???" )do { if (true && (!(rEvent.GetWindow()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.tools"), ("/home/maarten/src/libreoffice/core/toolkit/source/awt/vclxaccessiblecomponent.cxx"
 ":" "109" ": "), "%s", "Window???"); } } while (false);
      if( !rEvent.GetWindow()->IsAccessibilityEventsSuppressed() || ( rEvent.GetId() == VclEventId::ObjectDying ) )
      {
          ProcessWindowEvent( rEvent );
      }
  }
115}

117IMPL_LINK( VCLXAccessibleComponent, WindowChildEventListener, VclWindowEvent&, rEvent, void )void VCLXAccessibleComponent::LinkStubWindowChildEventListener
(void * instance, VclWindowEvent& data) { return static_cast
<VCLXAccessibleComponent *>(instance)->WindowChildEventListener
(data); } void VCLXAccessibleComponent::WindowChildEventListener
(VclWindowEvent& rEvent)
118{
  if ( m_xVCLXWindow.is() /* #i68079# */ )
  {
      DBG_ASSERT( rEvent.GetWindow(), "Window???" )do { if (true && (!(rEvent.GetWindow()))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.tools"), ("/home/maarten/src/libreoffice/core/toolkit/source/awt/vclxaccessiblecomponent.cxx"
 ":" "121" ": "), "%s", "Window???"); } } while (false);
      if( !rEvent.GetWindow()->IsAccessibilityEventsSuppressed() )
      {
          // #103087# to prevent an early release of the component
          uno::Reference< accessibility::XAccessibleContext > xHoldAlive = this;

          ProcessWindowChildEvent( rEvent );
      }
  }
130}

132uno::Reference< accessibility::XAccessible > VCLXAccessibleComponent::GetChildAccessible( const VclWindowEvent& rVclWindowEvent )
133{
  // checks if the data in the window event is our direct child
  // and returns its accessible

  // MT: Change this later, normally a show/hide event shouldn't have the vcl::Window* in pData.
  vcl::Window* pChildWindow = static_cast<vcl::Window *>(rVclWindowEvent.GetData());
  if( pChildWindow && GetWindow() == pChildWindow->GetAccessibleParentWindow() )
      return pChildWindow->GetAccessible( rVclWindowEvent.GetId() == VclEventId::WindowShow );
  else
      return uno::Reference< accessibility::XAccessible > ();
143}

145void VCLXAccessibleComponent::ProcessWindowChildEvent( const VclWindowEvent& rVclWindowEvent )
146{
  uno::Any aOldValue, aNewValue;
  uno::Reference< accessibility::XAccessible > xAcc;

  switch ( rVclWindowEvent.GetId() )
  {
      case VclEventId::WindowShow:  // send create on show for direct accessible children
      {
          xAcc = GetChildAccessible( rVclWindowEvent );
          if( xAcc.is() )
          {
              aNewValue <<= xAcc;
              NotifyAccessibleEvent( accessibility::AccessibleEventId::CHILD, aOldValue, aNewValue );
          }
      }
      break;
      case VclEventId::WindowHide:  // send destroy on hide for direct accessible children
      {
          xAcc = GetChildAccessible( rVclWindowEvent );
          if( xAcc.is() )
          {
              aOldValue <<= xAcc;
              NotifyAccessibleEvent( accessibility::AccessibleEventId::CHILD, aOldValue, aNewValue );
          }
      }
      break;
      default: break;
  }
174}

176void VCLXAccessibleComponent::ProcessWindowEvent( const VclWindowEvent& rVclWindowEvent )
177{
  uno::Any aOldValue, aNewValue;

  vcl::Window* pAccWindow = rVclWindowEvent.GetWindow();
  assert(pAccWindow && "VCLXAccessibleComponent::ProcessWindowEvent - Window?")(static_cast <bool> (pAccWindow && "VCLXAccessibleComponent::ProcessWindowEvent - Window?"
) ? void (0) : __assert_fail ("pAccWindow && \"VCLXAccessibleComponent::ProcessWindowEvent - Window?\""
, "/home/maarten/src/libreoffice/core/toolkit/source/awt/vclxaccessiblecomponent.cxx"
, 181, __extension__ __PRETTY_FUNCTION__));

  switch ( rVclWindowEvent.GetId() )
  {
      case VclEventId::ObjectDying:
      {
          DisconnectEvents();
          m_xVCLXWindow.clear();
      }
      break;
      case VclEventId::WindowChildDestroyed:
      {
          vcl::Window* pWindow = static_cast<vcl::Window*>(rVclWindowEvent.GetData());
          DBG_ASSERT( pWindow, "VclEventId::WindowChildDestroyed - Window=?" )do { if (true && (!(pWindow))) { sal_detail_logFormat
((SAL_DETAIL_LOG_LEVEL_WARN), ("legacy.tools"), ("/home/maarten/src/libreoffice/core/toolkit/source/awt/vclxaccessiblecomponent.cxx"
 ":" "194" ": "), "%s", "VclEventId::WindowChildDestroyed - Window=?"
); } } while (false);
          if ( pWindow->GetAccessible( false ).is() )
          {
              aOldValue <<= pWindow->GetAccessible( false );
              NotifyAccessibleEvent( accessibility::AccessibleEventId::CHILD, aOldValue, aNewValue );
          }
      }
      break;
      case VclEventId::WindowActivate:
      {
          sal_Int16 aAccessibleRole = getAccessibleRole();
          // avoid notification if a child frame is already active
          // only one frame may be active at a given time
          if ( !pAccWindow->HasActiveChildFrame() &&
               ( aAccessibleRole == accessibility::AccessibleRole::FRAME ||
                 aAccessibleRole == accessibility::AccessibleRole::ALERT ||
                 aAccessibleRole == accessibility::AccessibleRole::DIALOG ) )  // #i18891#
          {
              aNewValue <<= accessibility::AccessibleStateType::ACTIVE;
              NotifyAccessibleEvent( accessibility::AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
          }
      }
      break;
      case VclEventId::WindowDeactivate:
      {
          sal_Int16 aAccessibleRole = getAccessibleRole();
          if ( aAccessibleRole == accessibility::AccessibleRole::FRAME ||
               aAccessibleRole == accessibility::AccessibleRole::ALERT ||
               aAccessibleRole == accessibility::AccessibleRole::DIALOG )  // #i18891#
          {
              aOldValue <<= accessibility::AccessibleStateType::ACTIVE;
              NotifyAccessibleEvent( accessibility::AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
          }
      }
      break;
      case VclEventId::WindowGetFocus:
      case VclEventId::ControlGetFocus:
      {
          if( (pAccWindow->IsCompoundControl() && rVclWindowEvent.GetId() == VclEventId::ControlGetFocus) ||
              (!pAccWindow->IsCompoundControl() && rVclWindowEvent.GetId() == VclEventId::WindowGetFocus) )
          {
              // if multiple listeners were registered it is possible that the
              // focus was changed during event processing (eg SfxTopWindow )
              // #106082# allow ChildPathFocus only for CompoundControls, for windows the focus must be in the window itself
              if( (pAccWindow->IsCompoundControl() && pAccWindow->HasChildPathFocus()) ||
                  (!pAccWindow->IsCompoundControl() && pAccWindow->HasFocus()) )
              {
                  aNewValue <<= accessibility::AccessibleStateType::FOCUSED;
                  NotifyAccessibleEvent( accessibility::AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
              }
          }
      }
      break;
      case VclEventId::WindowLoseFocus:
      case VclEventId::ControlLoseFocus:
      {
          if( (pAccWindow->IsCompoundControl() && rVclWindowEvent.GetId() == VclEventId::ControlLoseFocus) ||
              (!pAccWindow->IsCompoundControl() && rVclWindowEvent.GetId() == VclEventId::WindowLoseFocus) )
          {
              aOldValue <<= accessibility::AccessibleStateType::FOCUSED;
              NotifyAccessibleEvent( accessibility::AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
          }
      }
      break;
      case VclEventId::WindowFrameTitleChanged:
      {
          OUString aOldName( *static_cast<OUString*>(rVclWindowEvent.GetData()) );
          OUString aNewName( getAccessibleName() );
          aOldValue <<= aOldName;
          aNewValue <<= aNewName;
          NotifyAccessibleEvent( accessibility::AccessibleEventId::NAME_CHANGED, aOldValue, aNewValue );
      }
      break;
      case VclEventId::WindowEnabled:
      {
          aNewValue <<= accessibility::AccessibleStateType::ENABLED;
          NotifyAccessibleEvent( accessibility::AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
          aNewValue <<= accessibility::AccessibleStateType::SENSITIVE;
          NotifyAccessibleEvent( accessibility::AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
      }
      break;
      case VclEventId::WindowDisabled:
      {
          aOldValue <<= accessibility::AccessibleStateType::SENSITIVE;
          NotifyAccessibleEvent( accessibility::AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );

          aOldValue <<= accessibility::AccessibleStateType::ENABLED;
          NotifyAccessibleEvent( accessibility::AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
      }
      break;
      case VclEventId::WindowMove:
      case VclEventId::WindowResize:
      {
          NotifyAccessibleEvent( accessibility::AccessibleEventId::BOUNDRECT_CHANGED, aOldValue, aNewValue );
      }
      break;
      case VclEventId::WindowMenubarAdded:
      {
          MenuBar* pMenuBar = static_cast<MenuBar*>(rVclWindowEvent.GetData());
          if ( pMenuBar )
          {
              uno::Reference< accessibility::XAccessible > xChild( pMenuBar->GetAccessible() );
              if ( xChild.is() )
              {
                  aNewValue <<= xChild;
                  NotifyAccessibleEvent( accessibility::AccessibleEventId::CHILD, aOldValue, aNewValue );
              }
          }
      }
      break;
      case VclEventId::WindowMenubarRemoved:
      {
          MenuBar* pMenuBar = static_cast<MenuBar*>(rVclWindowEvent.GetData());
          if ( pMenuBar )
          {
              uno::Reference< accessibility::XAccessible > xChild( pMenuBar->GetAccessible() );
              if ( xChild.is() )
              {
                  aOldValue <<= xChild;
                  NotifyAccessibleEvent( accessibility::AccessibleEventId::CHILD, aOldValue, aNewValue );
              }
          }
      }
      break;
      case VclEventId::WindowMinimize:
      {
          aNewValue <<= accessibility::AccessibleStateType::ICONIFIED;
          NotifyAccessibleEvent( accessibility::AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
      }
      break;
      case VclEventId::WindowNormalize:
      {
          aOldValue <<= accessibility::AccessibleStateType::ICONIFIED;
          NotifyAccessibleEvent( accessibility::AccessibleEventId::STATE_CHANGED, aOldValue, aNewValue );
      }
      break;
      default:
      {
      }
      break;
  }
335}

337void VCLXAccessibleComponent::disposing()
338{
  DisconnectEvents();

  OAccessibleExtendedComponentHelper::disposing();

  m_xVCLXWindow.clear();
344}

346VclPtr<vcl::Window> VCLXAccessibleComponent::GetWindow() const
347{
  return GetVCLXWindow() ? GetVCLXWindow()->GetWindow()
                         : VclPtr<vcl::Window>();
350}

352void VCLXAccessibleComponent::FillAccessibleRelationSet( utl::AccessibleRelationSetHelper& rRelationSet )
353{
  VclPtr<vcl::Window> pWindow = GetWindow();
  if ( !pWindow )
      return;

  vcl::Window *pLabeledBy = pWindow->GetAccessibleRelationLabeledBy();
  if ( pLabeledBy && pLabeledBy != pWindow )
  {
      uno::Sequence< uno::Reference< uno::XInterface > > aSequence { pLabeledBy->GetAccessible() };
      rRelationSet.AddRelation( accessibility::AccessibleRelation( accessibility::AccessibleRelationType::LABELED_BY, aSequence ) );
  }

  vcl::Window* pLabelFor = pWindow->GetAccessibleRelationLabelFor();
  if ( pLabelFor && pLabelFor != pWindow )
  {
      uno::Sequence< uno::Reference< uno::XInterface > > aSequence { pLabelFor->GetAccessible() };
      rRelationSet.AddRelation( accessibility::AccessibleRelation( accessibility::AccessibleRelationType::LABEL_FOR, aSequence ) );
  }

  vcl::Window* pMemberOf = pWindow->GetAccessibleRelationMemberOf();
  if ( pMemberOf && pMemberOf != pWindow )
  {
      uno::Sequence< uno::Reference< uno::XInterface > > aSequence { pMemberOf->GetAccessible() };
      rRelationSet.AddRelation( accessibility::AccessibleRelation( accessibility::AccessibleRelationType::MEMBER_OF, aSequence ) );
  }
378}

380void VCLXAccessibleComponent::FillAccessibleStateSet( utl::AccessibleStateSetHelper& rStateSet )
381{
  VclPtr<vcl::Window> pWindow = GetWindow();
  if ( pWindow )
  {
      if ( pWindow->IsVisible() )
      {
          rStateSet.AddState( accessibility::AccessibleStateType::VISIBLE );
          rStateSet.AddState( accessibility::AccessibleStateType::SHOWING );
      }
      else
      {
          rStateSet.AddState( accessibility::AccessibleStateType::INVALID );
      }

      if ( pWindow->IsEnabled() )
      {
          rStateSet.AddState( accessibility::AccessibleStateType::ENABLED );
          rStateSet.AddState( accessibility::AccessibleStateType::SENSITIVE );
      }

      if ( pWindow->HasChildPathFocus() &&
           ( getAccessibleRole() == accessibility::AccessibleRole::FRAME ||
             getAccessibleRole() == accessibility::AccessibleRole::ALERT ||
             getAccessibleRole() == accessibility::AccessibleRole::DIALOG ) )  // #i18891#
          rStateSet.AddState( accessibility::AccessibleStateType::ACTIVE );

      if ( pWindow->HasFocus() || ( pWindow->IsCompoundControl() && pWindow->HasChildPathFocus() ) )
          rStateSet.AddState( accessibility::AccessibleStateType::FOCUSED );

      if ( pWindow->IsWait() )
          rStateSet.AddState( accessibility::AccessibleStateType::BUSY );

      if ( pWindow->GetStyle() & WB_SIZEABLE )
          rStateSet.AddState( accessibility::AccessibleStateType::RESIZABLE );
      // 6. frame doesn't have MOVABLE state
      // 10. for password text, where is the sensitive state?
      if( ( getAccessibleRole() == accessibility::AccessibleRole::FRAME ||getAccessibleRole() == accessibility::AccessibleRole::DIALOG )&& pWindow->GetStyle() & WB_MOVEABLE )
          rStateSet.AddState( accessibility::AccessibleStateType::MOVEABLE );
      if( pWindow->IsDialog() )
      {
          Dialog *pDlg = static_cast< Dialog* >( pWindow.get() );
          if( pDlg->IsInExecute() )
              rStateSet.AddState( accessibility::AccessibleStateType::MODAL );
      }
      //If a combobox or list's edit child isn't read-only,EDITABLE state
      //should be set.
      if( pWindow && pWindow->GetType() == WindowType::COMBOBOX )
      {
          if( !( pWindow->GetStyle() & WB_READONLY) ||
              !static_cast<Edit*>(pWindow.get())->IsReadOnly() )
                  rStateSet.AddState( accessibility::AccessibleStateType::EDITABLE );
      }

      VclPtr<vcl::Window> pChild = pWindow->GetWindow( GetWindowType::FirstChild );

      while( pWindow && pChild )
      {
          VclPtr<vcl::Window> pWinTemp = pChild->GetWindow( GetWindowType::FirstChild );
          if( pWinTemp && pWinTemp->GetType() == WindowType::EDIT )
          {
              if( !( pWinTemp->GetStyle() & WB_READONLY) ||
                  !static_cast<Edit*>(pWinTemp.get())->IsReadOnly() )
                  rStateSet.AddState( accessibility::AccessibleStateType::EDITABLE );
              break;
          }
          if( pChild->GetType() == WindowType::EDIT )
          {
              if( !( pChild->GetStyle() & WB_READONLY) ||
                  !static_cast<Edit*>(pChild.get())->IsReadOnly())
                  rStateSet.AddState( accessibility::AccessibleStateType::EDITABLE );
              break;
          }
          pChild = pChild->GetWindow( GetWindowType::Next );
      }
  }
  else
  {
      rStateSet.AddState( accessibility::AccessibleStateType::DEFUNC );
  }

461/*

463MUST BE SET FROM DERIVED CLASSES:

465CHECKED
466COLLAPSED
467EXPANDED
468EXPANDABLE
469EDITABLE
470FOCUSABLE
471HORIZONTAL
472VERTICAL
473ICONIFIED
474MULTILINE
475MULTI_SELECTABLE
476PRESSED
477SELECTABLE
478SELECTED
479SINGLE_LINE
480TRANSIENT

  */
483}


486// accessibility::XAccessibleContext
487sal_Int32 VCLXAccessibleComponent::getAccessibleChildCount()
488{
  OExternalLockGuard aGuard( this );

  sal_Int32 nChildren = 0;
  if ( GetWindow() )
      nChildren = GetWindow()->GetAccessibleChildWindowCount();

  return nChildren;
496}

498uno::Reference< accessibility::XAccessible > VCLXAccessibleComponent::getAccessibleChild( sal_Int32 i )
499{
  OExternalLockGuard aGuard( this );

  if ( i >= getAccessibleChildCount() )
      throw lang::IndexOutOfBoundsException();

  uno::Reference< accessibility::XAccessible > xAcc;
  if ( GetWindow() )
  {
      vcl::Window* pChild = GetWindow()->GetAccessibleChildWindow( static_cast<sal_uInt16>(i) );
      if ( pChild )
          xAcc = pChild->GetAccessible();
  }

  return xAcc;
514}

516uno::Reference< accessibility::XAccessible > VCLXAccessibleComponent::getVclParent() const
517{
  uno::Reference< accessibility::XAccessible > xAcc;
  if ( GetWindow() )
  {
      vcl::Window* pParent = GetWindow()->GetAccessibleParentWindow();
      if ( pParent )
          xAcc = pParent->GetAccessible();
  }
  return xAcc;
526}

528uno::Reference< accessibility::XAccessible > VCLXAccessibleComponent::getAccessibleParent(  )
529{
  OExternalLockGuard aGuard( this );

  // we do _not_ have a foreign-controlled parent -> default to our VCL parent
  uno::Reference< accessibility::XAccessible > xAcc = getVclParent();

  return xAcc;
536}

538sal_Int32 VCLXAccessibleComponent::getAccessibleIndexInParent(  )
539{
  OExternalLockGuard aGuard( this );

  sal_Int32 nIndex = -1;

  if ( GetWindow() )
  {
      vcl::Window* pParent = GetWindow()->GetAccessibleParentWindow();
      if ( pParent )
      {
          //  Iterate over all the parent's children and search for this object.
          // this should be compatible with the code in SVX
          uno::Reference< accessibility::XAccessible > xParentAcc( pParent->GetAccessible() );
          if ( xParentAcc.is() )
          {
              uno::Reference< accessibility::XAccessibleContext > xParentContext ( xParentAcc->getAccessibleContext() );
              if ( xParentContext.is() )
              {
                  sal_Int32 nChildCount = xParentContext->getAccessibleChildCount();
                  for ( sal_Int32 i=0; i<nChildCount; i++ )
                  {
                      uno::Reference< accessibility::XAccessible > xChild( xParentContext->getAccessibleChild(i) );
                      if ( xChild.is() )
                      {
                          uno::Reference< accessibility::XAccessibleContext > xChildContext = xChild->getAccessibleContext();
                          if ( xChildContext == static_cast<accessibility::XAccessibleContext*>(this) )
                          {
                              nIndex = i;
                              break;
                          }
                      }
                  }
              }
          }
      }
  }
  return nIndex;
576}

578sal_Int16 VCLXAccessibleComponent::getAccessibleRole(  )
579{
  OExternalLockGuard aGuard( this );

  sal_Int16 nRole = 0;

  if ( GetWindow() )
      nRole = GetWindow()->GetAccessibleRole();

  return nRole;
588}

590OUString VCLXAccessibleComponent::getAccessibleDescription(  )
591{
  OExternalLockGuard aGuard( this );

  OUString aDescription;

  if ( GetWindow() )
      aDescription = GetWindow()->GetAccessibleDescription();

  return aDescription;
600}

602OUString VCLXAccessibleComponent::getAccessibleName(  )
603{
  OExternalLockGuard aGuard( this );

  OUString aName;
  if ( GetWindow() )
  {
      aName = GetWindow()->GetAccessibleName();
610#if OSL_DEBUG_LEVEL1 > 0
      aName += " (Type = " + OUString::number(static_cast<sal_Int32>(GetWindow()->GetType())) + ")";
612#endif
  }
  return aName;
615}

617OUString VCLXAccessibleComponent::getAccessibleId(  )
618{
  OExternalLockGuard aGuard( this );

  OUString aId;
  if ( GetWindow() )
  {
      const OUString &aWindowId = GetWindow()->get_id();
      aId = aWindowId;
  }
  return aId;
628}

630uno::Reference< accessibility::XAccessibleRelationSet > VCLXAccessibleComponent::getAccessibleRelationSet(  )
631{
  OExternalLockGuard aGuard( this );

  utl::AccessibleRelationSetHelper* pRelationSetHelper = new utl::AccessibleRelationSetHelper;
  uno::Reference< accessibility::XAccessibleRelationSet > xSet = pRelationSetHelper;
  FillAccessibleRelationSet( *pRelationSetHelper );
  return xSet;
638}

640uno::Reference< accessibility::XAccessibleStateSet > VCLXAccessibleComponent::getAccessibleStateSet(  )
641{
  OExternalLockGuard aGuard( this );

  utl::AccessibleStateSetHelper* pStateSetHelper = new utl::AccessibleStateSetHelper;
  uno::Reference< accessibility::XAccessibleStateSet > xSet = pStateSetHelper;
  FillAccessibleStateSet( *pStateSetHelper );
  return xSet;
648}

650lang::Locale VCLXAccessibleComponent::getLocale()
651{
  OExternalLockGuard aGuard( this );

  return Application::GetSettings().GetLanguageTag().getLocale();
655}

657uno::Reference< accessibility::XAccessible > VCLXAccessibleComponent::getAccessibleAtPoint( const awt::Point& rPoint )
658{
  OExternalLockGuard aGuard( this );

  uno::Reference< accessibility::XAccessible > xChild;
  for ( sal_uInt32 i = 0, nCount = getAccessibleChildCount(); i < nCount; ++i )
  {
      uno::Reference< accessibility::XAccessible > xAcc = getAccessibleChild( i );
      if ( xAcc.is() )
      {
          uno::Reference< accessibility::XAccessibleComponent > xComp( xAcc->getAccessibleContext(), uno::UNO_QUERY );
          if ( xComp.is() )
          {
              tools::Rectangle aRect = VCLRectangle( xComp->getBounds() );
              Point aPos = VCLPoint( rPoint );
              if ( aRect.IsInside( aPos ) )
              {
                  xChild = xAcc;
                  break;
              }
          }
      }
  }

  return xChild;
682}

684// accessibility::XAccessibleComponent
685awt::Rectangle VCLXAccessibleComponent::implGetBounds()
686{
  awt::Rectangle aBounds ( 0, 0, 0, 0 );

  VclPtr<vcl::Window> pWindow = GetWindow();
  if ( pWindow )
  {
      tools::Rectangle aRect = pWindow->GetWindowExtentsRelative( nullptr );
      aBounds = AWTRectangle( aRect );
      vcl::Window* pParent = pWindow->GetAccessibleParentWindow();
      if ( pParent )
      {
          tools::Rectangle aParentRect = pParent->GetWindowExtentsRelative( nullptr );
          awt::Point aParentScreenLoc = AWTPoint( aParentRect.TopLeft() );
          aBounds.X -= aParentScreenLoc.X;
          aBounds.Y -= aParentScreenLoc.Y;
      }
  }

  return aBounds;
705}

707awt::Point VCLXAccessibleComponent::getLocationOnScreen(  )
708{
  OExternalLockGuard aGuard( this );

  awt::Point aPos;
  if ( GetWindow() )
  {
      tools::Rectangle aRect = GetWindow()->GetWindowExtentsRelative( nullptr );
      aPos.X = aRect.Left();
      aPos.Y = aRect.Top();
  }

  return aPos;
720}

722void VCLXAccessibleComponent::grabFocus(  )
723{
  OExternalLockGuard aGuard( this );

  uno::Reference< accessibility::XAccessibleStateSet > xStates = getAccessibleStateSet();
  if ( m_xVCLXWindow.is() && xStates.is() && xStates->contains( accessibility::AccessibleStateType::FOCUSABLE ) )
      m_xVCLXWindow->setFocus();
729}

731sal_Int32 SAL_CALL VCLXAccessibleComponent::getForeground(  )
732{
  OExternalLockGuard aGuard( this );

  Color nColor;
  VclPtr<vcl::Window> pWindow = GetWindow();
  if ( pWindow )
  {
      if ( pWindow->IsControlForeground() )
          nColor = pWindow->GetControlForeground();
      else
      {
          vcl::Font aFont;
          if ( pWindow->IsControlFont() )
              aFont = pWindow->GetControlFont();
          else
              aFont = pWindow->GetFont();
          nColor = aFont.GetColor();
          // COL_AUTO is not very meaningful for AT
          if ( nColor == COL_AUTO)
              nColor = pWindow->GetTextColor();
      }
  }

  return sal_Int32(nColor);
756}

758sal_Int32 SAL_CALL VCLXAccessibleComponent::getBackground(  )
759{
  OExternalLockGuard aGuard( this );

  Color nColor;
  VclPtr<vcl::Window> pWindow = GetWindow();
  if ( pWindow )
  {
      if ( pWindow->IsControlBackground() )
          nColor = pWindow->GetControlBackground();
      else
          nColor = pWindow->GetBackground().GetColor();
  }

  return sal_Int32(nColor);
773}

775// XAccessibleExtendedComponent

777uno::Reference< awt::XFont > SAL_CALL VCLXAccessibleComponent::getFont(  )
778{
  OExternalLockGuard aGuard( this );

  uno::Reference< awt::XFont > xFont;
  VclPtr<vcl::Window> pWindow = GetWindow();
  if ( pWindow )
  {
      uno::Reference< awt::XDevice > xDev( pWindow->GetComponentInterface(), uno::UNO_QUERY );
      if ( xDev.is() )
      {
          vcl::Font aFont;
          if ( pWindow->IsControlFont() )
              aFont = pWindow->GetControlFont();
          else
              aFont = pWindow->GetFont();
          VCLXFont* pVCLXFont = new VCLXFont;
          pVCLXFont->Init( *xDev, aFont );
          xFont = pVCLXFont;
      }
  }

  return xFont;
800}

802OUString SAL_CALL VCLXAccessibleComponent::getTitledBorderText(  )
803{
  OExternalLockGuard aGuard( this );

  OUString sRet;
  if ( GetWindow() )
      sRet = GetWindow()->GetText();

  return sRet;
811}

813OUString SAL_CALL VCLXAccessibleComponent::getToolTipText(  )
814{
  OExternalLockGuard aGuard( this );

  OUString sRet;
  if ( GetWindow() )
      sRet = GetWindow()->GetQuickHelpText();

  return sRet;
822}

824/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

←

/home/maarten/src/libreoffice/core/include/toolkit/awt/vclxwindow.hxx

→

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
*   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 .
*/

20#ifndef INCLUDED_TOOLKIT_AWT_VCLXWINDOW_HXX
21#define INCLUDED_TOOLKIT_AWT_VCLXWINDOW_HXX

23#include <toolkit/dllapi.h>
24#include <toolkit/awt/vclxdevice.hxx>
25#include <vcl/window.hxx>

27#include <com/sun/star/awt/XWindow2.hpp>
28#include <com/sun/star/awt/XVclWindowPeer.hpp>
29#include <com/sun/star/awt/XLayoutConstrains.hpp>
30#include <com/sun/star/awt/XView.hpp>
31#include <com/sun/star/beans/XPropertySetInfo.hpp>
32#include <com/sun/star/accessibility/XAccessible.hpp>
33#include <com/sun/star/awt/XDockableWindow.hpp>
34#include <com/sun/star/awt/XStyleSettingsSupplier.hpp>

36#include <comphelper/servicehelper.hxx>
37#include <cppuhelper/implbase.hxx>

39#include <tools/gen.hxx>
40#include <tools/link.hxx>

42#include <memory>
43#include <vector>
44#include <functional>

46namespace comphelper { class OInterfaceContainerHelper2; }
47namespace com::sun::star::accessibility { class XAccessibleContext; }

49class VclWindowEvent;

51namespace toolkit
52{
  class IAccessibleFactory;
54}


57class UnoPropertyArrayHelper;
58class VCLXWindowImpl;
59typedef cppu::ImplInheritanceHelper< VCLXDevice,
                                   css::awt::XWindow2,
                                   css::awt::XVclWindowPeer,
                                   css::awt::XLayoutConstrains,
                                   css::awt::XView,
                                   css::awt::XDockableWindow,
                                   css::accessibility::XAccessible,
                                   css::lang::XEventListener,
                                   css::beans::XPropertySetInfo,
                                   css::awt::XStyleSettingsSupplier
                                 > VCLXWindow_Base;

71class TOOLKIT_DLLPUBLIC__attribute__ ((visibility("default"))) VCLXWindow : public VCLXWindow_Base
72{
73private:
  std::unique_ptr<VCLXWindowImpl>  mpImpl;

  UnoPropertyArrayHelper *GetPropHelper();

78protected:
  Size            ImplCalcWindowSize( const Size& rOutSz ) const;
  DECL_LINK(WindowEventListener, VclWindowEvent&, void )static void LinkStubWindowEventListener(void *, VclWindowEvent
&); void WindowEventListener(VclWindowEvent&);

  virtual void    ProcessWindowEvent( const VclWindowEvent& rVclWindowEvent );
  virtual css::uno::Reference< css::accessibility::XAccessibleContext >
                  CreateAccessibleContext();

  void            SetSynthesizingVCLEvent( bool b );
  bool            IsSynthesizingVCLEvent() const;

  void        SetSystemParent_Impl( const css::uno::Any& rHandle );

  ::toolkit::IAccessibleFactory&  getAccessibleFactory();

  // helper ...
  static void     PushPropertyIds( std::vector< sal_uInt16 > &aIds, int nFirstId, ...);
  // for use in controls/
  static void     ImplGetPropertyIds( std::vector< sal_uInt16 > &aIds,
                                      bool bWithDefaults = false );
  virtual void    GetPropertyIds( std::vector< sal_uInt16 > &aIds );

  ::comphelper::OInterfaceContainerHelper2&  GetContainerListeners();
  ::comphelper::OInterfaceContainerHelper2&  GetTopWindowListeners();

103public:
  typedef ::std::function<void ()>  Callback;

106protected:
  /** executes the given callback asynchronously

      At the moment the callback is called, the Solar Mutex is not locked. In particular, this implies that
      you cannot rely on |this| not being disposed. However, you *can* rely on |this| being still alive (i.e.
      having a ref count > 0).

      As a consequence, this can be used for doing listener notifications, using event multiplexers. Those multiplexers
      care for the disposed state themself, and are alive as long as |this| is alive.
  */
  void    ImplExecuteAsyncWithoutSolarLock(
              const Callback& i_callback
          );

120public:
  VCLXWindow( bool bWithDefaultProps = false );
  virtual ~VCLXWindow() override;

  virtual void SetWindow( const VclPtr< vcl::Window > &pWindow );
  template< class derived_type > VclPtr< derived_type > GetAs() const {
      return VclPtr< derived_type >( static_cast< derived_type * >( GetOutputDevice().get() ) ); }
3
←
Calling constructor for 'VclPtr<vcl::Window>'→
8
←
Returning from constructor for 'VclPtr<vcl::Window>'→
25
←
Calling 'VclPtr::get'→
  template< class derived_type > VclPtr< derived_type > GetAsDynamic() const {
      return VclPtr< derived_type >( dynamic_cast< derived_type * >( GetOutputDevice().get() ) ); }
  VclPtr<vcl::Window> GetWindow() const { return GetAs<vcl::Window>(); }
2
←
Calling 'VCLXWindow::GetAs'→
9
←
Returning from 'VCLXWindow::GetAs'→
24
←
Calling 'VCLXWindow::GetAs'→

  void    suspendVclEventListening( );
  void    resumeVclEventListening( );

  void    notifyWindowRemoved( vcl::Window const & _rWindow );

  // css::lang::XUnoTunnel
  UNO3_GETIMPLEMENTATION_DECL(VCLXWindow)static const css::uno::Sequence< sal_Int8 > & getUnoTunnelId
() throw(); virtual sal_Int64 getSomething( const css::uno::Sequence
< sal_Int8 >& aIdentifier ) override;

  // css::lang::XEventListener
  virtual void SAL_CALL disposing( const css::lang::EventObject& Source ) override;

  // css::lang::XComponent
  void SAL_CALL dispose(  ) override;
  void SAL_CALL addEventListener( const css::uno::Reference< css::lang::XEventListener >& rxListener ) override;
  void SAL_CALL removeEventListener( const css::uno::Reference< css::lang::XEventListener >& rxListener ) override;

  // css::awt::XWindow
  void SAL_CALL setPosSize( sal_Int32 X, sal_Int32 Y, sal_Int32 Width, sal_Int32 Height, sal_Int16 Flags ) override;
  css::awt::Rectangle SAL_CALL getPosSize(  ) override;
  void SAL_CALL setVisible( sal_Bool Visible ) override;
  void SAL_CALL setEnable( sal_Bool Enable ) override;
  void SAL_CALL setFocus(  ) override;
  void SAL_CALL addWindowListener( const css::uno::Reference< css::awt::XWindowListener >& rrxListener ) override;
  void SAL_CALL removeWindowListener( const css::uno::Reference< css::awt::XWindowListener >& rrxListener ) override;
  void SAL_CALL addFocusListener( const css::uno::Reference< css::awt::XFocusListener >& rrxListener ) override;
  void SAL_CALL removeFocusListener( const css::uno::Reference< css::awt::XFocusListener >& rrxListener ) override;
  void SAL_CALL addKeyListener( const css::uno::Reference< css::awt::XKeyListener >& rrxListener ) override;
  void SAL_CALL removeKeyListener( const css::uno::Reference< css::awt::XKeyListener >& rrxListener ) override;
  void SAL_CALL addMouseListener( const css::uno::Reference< css::awt::XMouseListener >& rrxListener ) override;
  void SAL_CALL removeMouseListener( const css::uno::Reference< css::awt::XMouseListener >& rrxListener ) override;
  void SAL_CALL addMouseMotionListener( const css::uno::Reference< css::awt::XMouseMotionListener >& rrxListener ) override;
  void SAL_CALL removeMouseMotionListener( const css::uno::Reference< css::awt::XMouseMotionListener >& rrxListener ) override;
  void SAL_CALL addPaintListener( const css::uno::Reference< css::awt::XPaintListener >& rrxListener ) override;
  void SAL_CALL removePaintListener( const css::uno::Reference< css::awt::XPaintListener >& rrxListener ) override;

  // css::awt::XWindowPeer
  css::uno::Reference< css::awt::XToolkit > SAL_CALL getToolkit(  ) override;
  void SAL_CALL setPointer( const css::uno::Reference< css::awt::XPointer >& Pointer ) override;
  void SAL_CALL setBackground( sal_Int32 Color ) override;
  void SAL_CALL invalidate( sal_Int16 Flags ) override;
  void SAL_CALL invalidateRect( const css::awt::Rectangle& Rect, sal_Int16 Flags ) override;

  // css::awt::XVclWindowPeer
  sal_Bool SAL_CALL isChild( const css::uno::Reference< css::awt::XWindowPeer >& Peer ) override;
  void SAL_CALL setDesignMode( sal_Bool bOn ) override;
  sal_Bool SAL_CALL isDesignMode(  ) override;
  void SAL_CALL enableClipSiblings( sal_Bool bClip ) override;
  void SAL_CALL setForeground( sal_Int32 Color ) override;
  void SAL_CALL setControlFont( const css::awt::FontDescriptor& aFont ) override;
  void SAL_CALL getStyles( sal_Int16 nType, css::awt::FontDescriptor& Font, sal_Int32& ForegroundColor, sal_Int32& BackgroundColor ) override;
  void SAL_CALL setProperty( const OUString& PropertyName, const css::uno::Any& Value ) override;
  css::uno::Any SAL_CALL getProperty( const OUString& PropertyName ) override;

  // css::awt::XLayoutConstrains
  css::awt::Size SAL_CALL getMinimumSize(  ) override;
  css::awt::Size SAL_CALL getPreferredSize(  ) override;
  css::awt::Size SAL_CALL calcAdjustedSize( const css::awt::Size& aNewSize ) override;

  // css::awt::XView
  sal_Bool SAL_CALL setGraphics( const css::uno::Reference< css::awt::XGraphics >& aDevice ) override;
  css::uno::Reference< css::awt::XGraphics > SAL_CALL getGraphics(  ) override;
  css::awt::Size SAL_CALL getSize(  ) override;
  void SAL_CALL draw( sal_Int32 nX, sal_Int32 nY ) override;
  void SAL_CALL setZoom( float fZoomX, float fZoomY ) override;

  // css::accessibility::XAccessible
  css::uno::Reference< css::accessibility::XAccessibleContext > SAL_CALL getAccessibleContext(  ) override;

  // css::awt::XDockableWindow
  void SAL_CALL addDockableWindowListener( const css::uno::Reference< css::awt::XDockableWindowListener >& xListener ) override;
  void SAL_CALL removeDockableWindowListener( const css::uno::Reference< css::awt::XDockableWindowListener >& xListener ) override;
  void SAL_CALL enableDocking( sal_Bool bEnable ) override;
  sal_Bool SAL_CALL isFloating(  ) override;
  void SAL_CALL setFloatingMode( sal_Bool bFloating ) override;
  void SAL_CALL lock(  ) override;
  void SAL_CALL unlock(  ) override;
  sal_Bool SAL_CALL isLocked(  ) override;
  void SAL_CALL startPopupMode( const css::awt::Rectangle& WindowRect ) override;
  sal_Bool SAL_CALL isInPopupMode(  ) override;

  // css::awt::XWindow2
  void SAL_CALL setOutputSize( const css::awt::Size& aSize ) override;
  css::awt::Size SAL_CALL getOutputSize(  ) override;
  sal_Bool SAL_CALL isVisible(  ) override;
  sal_Bool SAL_CALL isActive(  ) override;
  sal_Bool SAL_CALL isEnabled(  ) override;
  sal_Bool SAL_CALL hasFocus(  ) override;

  // css::beans::XPropertySetInfo
  css::uno::Sequence< css::beans::Property > SAL_CALL getProperties(  ) override;
  css::beans::Property SAL_CALL getPropertyByName( const OUString& aName ) override;
  sal_Bool SAL_CALL hasPropertyByName( const OUString& Name ) override;

  // XStyleSettingsSupplier
  virtual css::uno::Reference< css::awt::XStyleSettings > SAL_CALL getStyleSettings() override;
226};

228#endif // INCLUDED_TOOLKIT_AWT_VCLXWINDOW_HXX

230/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

←

/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx

→

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
*   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 .
*/

20#ifndef INCLUDED_VCL_PTR_HXX
21#define INCLUDED_VCL_PTR_HXX

23#include <sal/config.h>

25#include <rtl/ref.hxx>

27#include <utility>
28#include <type_traits>

30#ifdef DBG_UTIL
31#ifndef _WIN32
32#include <vcl/vclmain.hxx>
33#endif
34#endif

36class VclReferenceBase;

38namespace vcl::detail {

40template<typename>
41constexpr bool isIncompleteOrDerivedFromVclReferenceBase(...) { return true; }

43template<typename T> constexpr bool isIncompleteOrDerivedFromVclReferenceBase(
  int (*)[sizeof(T)])
45{ return std::is_base_of<VclReferenceBase, T>::value; }

47} // namespace vcl::detail

49/**
* A thin wrapper around rtl::Reference to implement the acquire and dispose semantics we want for references to vcl::Window subclasses.
*
* For more details on the design please see vcl/README.lifecycle
*
* @param reference_type must be a subclass of vcl::Window
*/
56template <class reference_type>
57class VclPtr
58{
  static_assert(
      vcl::detail::isIncompleteOrDerivedFromVclReferenceBase<reference_type>(
          nullptr),
      "template argument type must be derived from VclReferenceBase");

  ::rtl::Reference<reference_type> m_rInnerRef;

66public:
  /** Constructor...
   */
  VclPtr()
      : m_rInnerRef()
  {}

  /** Constructor...
   */
  VclPtr (reference_type * pBody)
      : m_rInnerRef(pBody)
4
←
Calling constructor for 'Reference<vcl::Window>'→
7
←
Returning from constructor for 'Reference<vcl::Window>'→
  {}

  /** Constructor... that doesn't take a ref.
   */
  VclPtr (reference_type * pBody, __sal_NoAcquire)
      : m_rInnerRef(pBody, SAL_NO_ACQUIRE)
  {}

  /** Up-casting conversion constructor: Copies interface reference.

      Does not work for up-casts to ambiguous bases.  For the special case of
      up-casting to Reference< XInterface >, see the corresponding conversion
      operator.

      @param rRef another reference
  */
  template< class derived_type >
  VclPtr(
      const VclPtr< derived_type > & rRef,
      typename std::enable_if<
          std::is_base_of<reference_type, derived_type>::value, int>::type
          = 0 )
      : m_rInnerRef( static_cast<reference_type*>(rRef) )
  {
  }

103#if defined(DBG_UTIL) && !defined(_WIN32)
  virtual ~VclPtr()
  {
      assert(m_rInnerRef.get() == nullptr || vclmain::isAlive())(static_cast <bool> (m_rInnerRef.get() == nullptr || vclmain
::isAlive()) ? void (0) : __assert_fail ("m_rInnerRef.get() == nullptr || vclmain::isAlive()"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 106, __extension__ __PRETTY_FUNCTION__));
      // We can be one of the intermediate counts, but if we are the last
      // VclPtr keeping this object alive, then something forgot to call dispose().
      assert((!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1)(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
 "someone forgot to call dispose()") ? void (0) : __assert_fail
 ("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__))
              && "someone forgot to call dispose()")(static_cast <bool> ((!m_rInnerRef.get() || m_rInnerRef
->isDisposed() || m_rInnerRef->getRefCount() > 1) &&
 "someone forgot to call dispose()") ? void (0) : __assert_fail
 ("(!m_rInnerRef.get() || m_rInnerRef->isDisposed() || m_rInnerRef->getRefCount() > 1) && \"someone forgot to call dispose()\""
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 110, __extension__ __PRETTY_FUNCTION__));
  }
  VclPtr(VclPtr const &) = default;
  VclPtr(VclPtr &&) = default;
  VclPtr & operator =(VclPtr const &) = default;
  VclPtr & operator =(VclPtr &&) = default;
116#endif

  /**
   * A construction helper for VclPtr. Since VclPtr types are created
   * with a reference-count of one - to help fit into the existing
   * code-flow; this helps us to construct them easily.
   *
   * For more details on the design please see vcl/README.lifecycle
   *
   * @tparam reference_type must be a subclass of vcl::Window
   */
  template<typename... Arg> [[nodiscard]] static VclPtr< reference_type > Create(Arg &&... arg)
  {
      return VclPtr< reference_type >( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE );
  }

  /** Probably most common used: handle->someBodyOp().
   */
  reference_type * operator->() const
  {
      return m_rInnerRef.get();
  }

  /** Get the body. Can be used instead of operator->().
       I.e. handle->someBodyOp() and handle.get()->someBodyOp()
       are the same.
    */
  reference_type * get() const
  {
      return m_rInnerRef.get();
26
←
Calling 'Reference::get'→
  }

  void set(reference_type *pBody)
  {
      m_rInnerRef.set(pBody);
  }

  void reset(reference_type *pBody)
  {
      m_rInnerRef.set(pBody);
  }

  /** Up-casting copy assignment operator.

      Does not work for up-casts to ambiguous bases.

      @param rRef another reference
  */
  template<typename derived_type>
  typename std::enable_if<
      std::is_base_of<reference_type, derived_type>::value,
      VclPtr &>::type
  operator =(VclPtr<derived_type> const & rRef)
  {
      m_rInnerRef.set(rRef.get());
      return *this;
  }

  VclPtr & operator =(reference_type * pBody)
  {
      m_rInnerRef.set(pBody);
      return *this;
  }

  operator reference_type * () const
  {
      return m_rInnerRef.get();
  }

  explicit operator bool () const
  {
      return m_rInnerRef.get() != nullptr;
  }

  void clear()
  {
      m_rInnerRef.clear();
  }

  void reset()
  {
      m_rInnerRef.clear();
  }

  void disposeAndClear()
  {
      // hold it alive for the lifetime of this method
      ::rtl::Reference<reference_type> aTmp(m_rInnerRef);
      m_rInnerRef.clear(); // we should use some 'swap' method ideally ;-)
      if (aTmp.get()) {
          aTmp->disposeOnce();
      }
  }

  /** Needed to place VclPtr's into STL collection.
   */
  bool operator< (const VclPtr<reference_type> & handle) const
  {
      return (m_rInnerRef < handle.m_rInnerRef);
  }
216}; // class VclPtr

218template<typename T1, typename T2>
219inline bool operator ==(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
  return p1.get() == p2.get();
221}

223template<typename T> inline bool operator ==(VclPtr<T> const & p1, T const * p2)
224{
  return p1.get() == p2;
226}

228template<typename T> inline bool operator ==(VclPtr<T> const & p1, T * p2) {
  return p1.get() == p2;
230}

232template<typename T> inline bool operator ==(T const * p1, VclPtr<T> const & p2)
233{
  return p1 == p2.get();
235}

237template<typename T> inline bool operator ==(T * p1, VclPtr<T> const & p2) {
  return p1 == p2.get();
239}

241template<typename T1, typename T2>
242inline bool operator !=(VclPtr<T1> const & p1, VclPtr<T2> const & p2) {
  return !(p1 == p2);
244}

246template<typename T> inline bool operator !=(VclPtr<T> const & p1, T const * p2)
247{
  return !(p1 == p2);
249}

251template<typename T> inline bool operator !=(VclPtr<T> const & p1, T * p2) {
  return !(p1 == p2);
253}

255template<typename T> inline bool operator !=(T const * p1, VclPtr<T> const & p2)
256{
  return !(p1 == p2);
258}

260template<typename T> inline bool operator !=(T * p1, VclPtr<T> const & p2) {
  return !(p1 == p2);
262}

264/**
* A construction helper for a temporary VclPtr. Since VclPtr types
* are created with a reference-count of one - to help fit into
* the existing code-flow; this helps us to construct them easily.
* see also VclPtr::Create and ScopedVclPtr
*
* For more details on the design please see vcl/README.lifecycle
*
* @param reference_type must be a subclass of vcl::Window
*/
274template <class reference_type>
275class SAL_WARN_UNUSED__attribute__((warn_unused)) VclPtrInstance final : public VclPtr<reference_type>
276{
277public:
  template<typename... Arg> VclPtrInstance(Arg &&... arg)
      : VclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
  {
  }

  /**
   * Override and disallow this, to prevent people accidentally calling it and actually
   * getting VclPtr::Create and getting a naked VclPtr<> instance
   */
  template<typename... Arg> static VclPtrInstance< reference_type > Create(Arg &&... ) = delete;
288};

290template <class reference_type>
291class ScopedVclPtr : public VclPtr<reference_type>
292{
293public:
  /** Constructor...
   */
  ScopedVclPtr()
      : VclPtr<reference_type>()
  {}

  /** Constructor
   */
  ScopedVclPtr (reference_type * pBody)
      : VclPtr<reference_type>(pBody)
  {}

  /** Copy constructor...
   */
  ScopedVclPtr (const VclPtr<reference_type> & handle)
      : VclPtr<reference_type>(handle)
  {}

  /**
     Assignment that releases the last reference.
   */
  void disposeAndReset(reference_type *pBody)
  {
      if (pBody != this->get()) {
          VclPtr<reference_type>::disposeAndClear();
          VclPtr<reference_type>::set(pBody);
      }
  }

  /**
     Assignment that releases the last reference.
   */
  ScopedVclPtr<reference_type>& operator = (reference_type * pBody)
  {
      disposeAndReset(pBody);
      return *this;
  }

  /** Up-casting conversion constructor: Copies interface reference.

      Does not work for up-casts to ambiguous bases.  For the special case of
      up-casting to Reference< XInterface >, see the corresponding conversion
      operator.

      @param rRef another reference
  */
  template< class derived_type >
  ScopedVclPtr(
      const VclPtr< derived_type > & rRef,
      typename std::enable_if<
          std::is_base_of<reference_type, derived_type>::value, int>::type
          = 0 )
      : VclPtr<reference_type>( rRef )
  {
  }

  /** Up-casting assignment operator.

      Does not work for up-casts to ambiguous bases.

      @param rRef another VclPtr
  */
  template<typename derived_type>
  typename std::enable_if<
      std::is_base_of<reference_type, derived_type>::value,
      ScopedVclPtr &>::type
  operator =(VclPtr<derived_type> const & rRef)
  {
      disposeAndReset(rRef.get());
      return *this;
  }

  /**
   * Override and disallow this, to prevent people accidentally calling it and actually
   * getting VclPtr::Create and getting a naked VclPtr<> instance
   */
  template<typename... Arg> static ScopedVclPtr< reference_type > Create(Arg &&... ) = delete;

  ~ScopedVclPtr()
  {
      VclPtr<reference_type>::disposeAndClear();
      assert(VclPtr<reference_type>::get() == nullptr)(static_cast <bool> (VclPtr<reference_type>::get(
) == nullptr) ? void (0) : __assert_fail ("VclPtr<reference_type>::get() == nullptr"
, "/home/maarten/src/libreoffice/core/include/vcl/vclptr.hxx"
, 375, __extension__ __PRETTY_FUNCTION__)); // make sure there are no lingering references
  }

378private:
  // Most likely we don't want this default copy-constructor.
  ScopedVclPtr (const ScopedVclPtr<reference_type> &) = delete;
  // And certainly we don't want a default assignment operator.
  ScopedVclPtr<reference_type>& operator = (const ScopedVclPtr<reference_type> &) = delete;
  // And disallow reset as that doesn't call disposeAndClear on the original reference
  void reset() = delete;
  void reset(reference_type *pBody) = delete;

387protected:
  ScopedVclPtr (reference_type * pBody, __sal_NoAcquire)
      : VclPtr<reference_type>(pBody, SAL_NO_ACQUIRE)
  {}
391};

393/**
* A construction helper for ScopedVclPtr. Since VclPtr types are created
* with a reference-count of one - to help fit into the existing
* code-flow; this helps us to construct them easily.
*
* For more details on the design please see vcl/README.lifecycle
*
* @param reference_type must be a subclass of vcl::Window
*/
402#if defined _MSC_VER
403#pragma warning(push)
404#pragma warning(disable: 4521) // " multiple copy constructors specified"
405#endif
406template <class reference_type>
407class SAL_WARN_UNUSED__attribute__((warn_unused)) ScopedVclPtrInstance final : public ScopedVclPtr<reference_type>
408{
409public:
  template<typename... Arg> ScopedVclPtrInstance(Arg &&... arg)
      : ScopedVclPtr<reference_type>( new reference_type(std::forward<Arg>(arg)...), SAL_NO_ACQUIRE )
  {
  }

  /**
   * Override and disallow this, to prevent people accidentally calling it and actually
   * getting VclPtr::Create and getting a naked VclPtr<> instance
   */
  template<typename... Arg> static ScopedVclPtrInstance< reference_type > Create(Arg &&...) = delete;

421private:
  // Prevent the above perfect forwarding ctor from hijacking (accidental)
  // attempts at ScopedVclPtrInstance copy construction (where the hijacking
  // would typically lead to somewhat obscure error messages); both non-const
  // and const variants are needed here, as the ScopedVclPtr base class has a
  // const--variant copy ctor, so the implicitly declared copy ctor for
  // ScopedVclPtrInstance would also be the const variant, so non-const copy
  // construction attempts would be hijacked by the perfect forwarding ctor;
  // but if we only declared a non-const variant here, the const variant would
  // no longer be implicitly declared (as there would already be an explicitly
  // declared copy ctor), so const copy construction attempts would then be
  // hijacked by the perfect forwarding ctor:
  ScopedVclPtrInstance(ScopedVclPtrInstance &) = delete;
  ScopedVclPtrInstance(ScopedVclPtrInstance const &) = delete;
435};
436#if defined _MSC_VER
437#pragma warning(pop)
438#endif

440#endif // INCLUDED_VCL_PTR_HXX

442/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

←

/home/maarten/src/libreoffice/core/include/rtl/ref.hxx

→

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
*   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 .
*/

20#ifndef INCLUDED_RTL_REF_HXX
21#define INCLUDED_RTL_REF_HXX

23#include "sal/config.h"

25#include <cassert>
26#include <cstddef>
27#include <functional>
28#ifdef LIBO_INTERNAL_ONLY1
29#include <type_traits>
30#endif

32#include "sal/types.h"

34namespace rtl
35{

37/** Template reference class for reference type.
38*/
39template <class reference_type>
40class Reference
41{
  /** The <b>reference_type</b> body pointer.
   */
  reference_type * m_pBody;


47public:
  /** Constructor...
   */
  Reference()
      : m_pBody (NULL__null)
  {}


  /** Constructor...
   */
  Reference (reference_type * pBody, __sal_NoAcquire)
      : m_pBody (pBody)
  {
  }

  /** Constructor...
   */
  Reference (reference_type * pBody)
      : m_pBody (pBody)
  {
      if (m_pBody)
5
←
Assuming field 'm_pBody' is non-null→
6
←
Taking true branch→
          m_pBody->acquire();
  }

  /** Copy constructor...
   */
  Reference (const Reference<reference_type> & handle)
      : m_pBody (handle.m_pBody)
  {
      if (m_pBody)
          m_pBody->acquire();
  }

80#ifdef LIBO_INTERNAL_ONLY1
  /** Move constructor...
   */
  Reference (Reference<reference_type> && handle) noexcept
      : m_pBody (handle.m_pBody)
  {
      handle.m_pBody = nullptr;
  }
88#endif

90#if defined LIBO_INTERNAL_ONLY1
  /** Up-casting conversion constructor: Copies interface reference.

      Does not work for up-casts to ambiguous bases.

      @param rRef another reference
  */
  template< class derived_type >
  inline Reference(
      const Reference< derived_type > & rRef,
      std::enable_if_t<std::is_base_of_v<reference_type, derived_type>, int> = 0 )
      : m_pBody (rRef.get())
  {
      if (m_pBody)
          m_pBody->acquire();
  }
106#endif

  /** Destructor...
   */
  ~Reference() COVERITY_NOEXCEPT_FALSE
  {
      if (m_pBody12.1
Field 'm_pBody' is non-null
1
Field 'm_pBody' is non-null
1
Field 'm_pBody' is non-null
1
Field 'm_pBody' is non-null
1
Field 'm_pBody' is non-null
)
13
←
Taking true branch→
          m_pBody->release();
14
←
Calling 'VclReferenceBase::release'→
18
←
Returning; memory was released→
  }

  /** Set...
       Similar to assignment.
   */
  Reference<reference_type> &
  SAL_CALL set (reference_type * pBody)
  {
      if (pBody)
          pBody->acquire();
      reference_type * const pOld = m_pBody;
      m_pBody = pBody;
      if (pOld)
          pOld->release();
      return *this;
  }

  /** Assignment.
       Unbinds this instance from its body (if bound) and
       bind it to the body represented by the handle.
   */
  Reference<reference_type> &
  SAL_CALL operator= (const Reference<reference_type> & handle)
  {
      return set( handle.m_pBody );
  }

141#ifdef LIBO_INTERNAL_ONLY1
  /** Assignment.
   *   Unbinds this instance from its body (if bound),
   *   bind it to the body represented by the handle, and
   *   set the body represented by the handle to nullptr.
   */
  Reference<reference_type> &
  operator= (Reference<reference_type> && handle)
  {
      // self-movement guts ourself
      if (m_pBody)
          m_pBody->release();
      m_pBody = handle.m_pBody;
      handle.m_pBody = nullptr;
      return *this;
  }
157#endif

  /** Assignment...
   */
  Reference<reference_type> &
  SAL_CALL operator= (reference_type * pBody)
  {
      return set( pBody );
  }

  /** Unbind the body from this handle.
       Note that for a handle representing a large body,
       "handle.clear().set(new body());" _might_
       perform a little bit better than "handle.set(new body());",
       since in the second case two large objects exist in memory
       (the old body and the new body).
   */
  Reference<reference_type> & SAL_CALL clear()
  {
      if (m_pBody)
      {
          reference_type * const pOld = m_pBody;
          m_pBody = NULL__null;
          pOld->release();
      }
      return *this;
  }


  /** Get the body. Can be used instead of operator->().
       I.e. handle->someBodyOp() and handle.get()->someBodyOp()
       are the same.
   */
  reference_type * SAL_CALL get() const
  {
      return m_pBody;
27
←
Use of memory after it is freed
  }


  /** Probably most common used: handle->someBodyOp().
   */
  reference_type * SAL_CALL operator->() const
  {
      assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
 ("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 200, __extension__ __PRETTY_FUNCTION__));
      return m_pBody;
  }


  /** Allows (*handle).someBodyOp().
  */
  reference_type & SAL_CALL operator*() const
  {
      assert(m_pBody != NULL)(static_cast <bool> (m_pBody != __null) ? void (0) : __assert_fail
 ("m_pBody != NULL", "/home/maarten/src/libreoffice/core/include/rtl/ref.hxx"
, 209, __extension__ __PRETTY_FUNCTION__));
      return *m_pBody;
  }


  /** Returns True if the handle does point to a valid body.
   */
  bool SAL_CALL is() const
  {
      return (m_pBody != NULL__null);
  }

221#if defined LIBO_INTERNAL_ONLY1
  /** Returns True if the handle does point to a valid body.
   */
  explicit operator bool() const
  {
      return is();
  }
228#endif

  /** Returns True if this points to pBody.
   */
  bool SAL_CALL operator== (const reference_type * pBody) const
  {
      return (m_pBody == pBody);
  }


  /** Returns True if handle points to the same body.
   */
  bool
  SAL_CALL operator== (const Reference<reference_type> & handle) const
  {
      return (m_pBody == handle.m_pBody);
  }


  /** Needed to place References into STL collection.
   */
  bool
  SAL_CALL operator!= (const Reference<reference_type> & handle) const
  {
      return (m_pBody != handle.m_pBody);
  }


  /** Needed to place References into STL collection.
   */
  bool
  SAL_CALL operator< (const Reference<reference_type> & handle) const
  {
      return (m_pBody < handle.m_pBody);
  }


  /** Needed to place References into STL collection.
   */
  bool
  SAL_CALL operator> (const Reference<reference_type> & handle) const
  {
      return (m_pBody > handle.m_pBody);
  }
272};

274} // namespace rtl

276#if defined LIBO_INTERNAL_ONLY1
277namespace std
278{

280/// @cond INTERNAL
281/**
Make rtl::Reference hashable by default for use in STL containers.

@since LibreOffice 6.3
285*/
286template<typename T>
287struct hash<::rtl::Reference<T>>
288{
  std::size_t operator()(::rtl::Reference<T> const & s) const
  { return std::size_t(s.get()); }
291};
292/// @endcond

294}

296#endif

298#endif /* ! INCLUDED_RTL_REF_HXX */

300/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

←

/home/maarten/src/libreoffice/core/include/vcl/vclreferencebase.hxx

1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2/*
3 * This file is part of the LibreOffice project.
4 *
5 * This Source Code Form is subject to the terms of the Mozilla Public
6 * License, v. 2.0. If a copy of the MPL was not distributed with this
7 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 *
9 * This file incorporates work covered by the following license notice:
10 *
11 *   Licensed to the Apache Software Foundation (ASF) under one or more
12 *   contributor license agreements. See the NOTICE file distributed
13 *   with this work for additional information regarding copyright
14 *   ownership. The ASF licenses this file to you under the Apache
15 *   License, Version 2.0 (the "License"); you may not use this file
16 *   except in compliance with the License. You may obtain a copy of
17 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 */
19#ifndef INCLUDED_VCL_Reference_HXX
20#define INCLUDED_VCL_Reference_HXX
21 
22#include <vcl/dllapi.h>
23#include <osl/interlck.h>
24 
25class VCL_DLLPUBLIC__attribute__ ((visibility("default"))) VclReferenceBase
26{
27    mutable oslInterlockedCount mnRefCnt;
28 
29    template<typename T> friend class VclPtr;
30 
31public:
32    void acquire() const
33    {
34        osl_atomic_increment(&mnRefCnt)__sync_add_and_fetch((&mnRefCnt), 1);
35    }
36 
37    void release() const
38    {
39        if (osl_atomic_decrement(&mnRefCnt)__sync_sub_and_fetch((&mnRefCnt), 1) == 0)
15
←
Assuming the condition is true→
16
←
Taking true branch→
40            delete this;
17
←
Memory is released→
41    }
42#ifdef DBG_UTIL
43#ifndef _WIN32
44    sal_Int32 getRefCount() const { return mnRefCnt; }
45#endif
46#endif
47 
48 
49private:
50    VclReferenceBase(const VclReferenceBase&) = delete;
51    VclReferenceBase& operator=(const VclReferenceBase&) = delete;
52 
53    bool                        mbDisposed : 1;
54 
55protected:
56                                VclReferenceBase();
57protected:
58    virtual                     ~VclReferenceBase();
59 
60protected:
61    virtual void                dispose();
62 
63public:
64    void                        disposeOnce();
65    bool                        isDisposed() const { return mbDisposed; }
66 
67};
68#endif