sfx2/source/view/userinputinterception.cxx

   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
  20
  21 #include <sfx2/userinputinterception.hxx>
  22
  23 #include <com/sun/star/awt/MouseButton.hpp>
  24 #include <com/sun/star/awt/MouseEvent.hpp>
  25 #include <com/sun/star/awt/InputEvent.hpp>
  26 #include <com/sun/star/awt/KeyEvent.hpp>
  27 #include <com/sun/star/awt/KeyModifier.hpp>
  28 #include <com/sun/star/awt/XKeyHandler.hpp>
  29 #include <com/sun/star/awt/XMouseClickHandler.hpp>
  30 #include <com/sun/star/awt/XWindowPeer.hpp>
  31 #include <com/sun/star/uno/XInterface.hpp>
  32
  33 #include <comphelper/interfacecontainer2.hxx>
  34 #include <cppuhelper/weak.hxx>
  35 #include <vcl/event.hxx>
  36 #include <vcl/window.hxx>
  37 #include <osl/diagnose.h>
  38
  39
  40 namespace sfx2
  41 {
  42
  43
  44     using ::com::sun::star::uno::Reference;
  45     using ::com::sun::star::uno::XInterface;
  46     using ::com::sun::star::uno::Exception;
  47     using ::com::sun::star::uno::RuntimeException;
  48     using ::com::sun::star::awt::MouseEvent;
  49     using ::com::sun::star::awt::KeyEvent;
  50     using ::com::sun::star::awt::InputEvent;
  51     using ::com::sun::star::awt::XKeyHandler;
  52     using ::com::sun::star::awt::XMouseClickHandler;
  53     using ::com::sun::star::lang::DisposedException;
  54
  55     namespace MouseButton = ::com::sun::star::awt::MouseButton;
  56     namespace KeyModifier = ::com::sun::star::awt::KeyModifier;
  57
  58     struct UserInputInterception_Data
  59     {
  60     public:
  61         ::cppu::OWeakObject&                m_rControllerImpl;
  62         ::comphelper::OInterfaceContainerHelper2   m_aKeyHandlers;
  63         ::comphelper::OInterfaceContainerHelper2   m_aMouseClickHandlers;
  64
  65     public:
  66         UserInputInterception_Data( ::cppu::OWeakObject& _rControllerImpl, ::osl::Mutex& _rMutex )
  67             :m_rControllerImpl( _rControllerImpl )
  68             ,m_aKeyHandlers( _rMutex )
  69             ,m_aMouseClickHandlers( _rMutex )
  70         {
  71         }
  72     };
  73
  74     namespace
  75     {
  76         template< class VLCEVENT >
  77         void lcl_initModifiers( InputEvent& _rEvent, const VLCEVENT& _rVclEvent )
  78         {
  79             _rEvent.Modifiers = 0;
  80
  81             if ( _rVclEvent.IsShift() )
  82                 _rEvent.Modifiers |= KeyModifier::SHIFT;
  83             if ( _rVclEvent.IsMod1() )
  84                 _rEvent.Modifiers |= KeyModifier::MOD1;
  85             if ( _rVclEvent.IsMod2() )
  86                 _rEvent.Modifiers |= KeyModifier::MOD2;
  87             if ( _rVclEvent.IsMod3() )
  88                 _rEvent.Modifiers |= KeyModifier::MOD3;
  89         }
  90
  91         void lcl_initKeyEvent( KeyEvent& rEvent, const ::KeyEvent& rEvt )
  92         {
  93             lcl_initModifiers( rEvent, rEvt.GetKeyCode() );
  94
  95             rEvent.KeyCode = rEvt.GetKeyCode().GetCode();
  96             rEvent.KeyChar = rEvt.GetCharCode();
  97             rEvent.KeyFunc = sal::static_int_cast< sal_Int16 >( rEvt.GetKeyCode().GetFunction());
  98         }
  99
 100         void lcl_initMouseEvent( MouseEvent& rEvent, const ::MouseEvent& rEvt )
 101         {
 102             lcl_initModifiers( rEvent, rEvt );
 103
 104             rEvent.Buttons = 0;
 105             if ( rEvt.IsLeft() )
 106                 rEvent.Buttons |= MouseButton::LEFT;
 107             if ( rEvt.IsRight() )
 108                 rEvent.Buttons |= MouseButton::RIGHT;
 109             if ( rEvt.IsMiddle() )
 110                 rEvent.Buttons |= MouseButton::MIDDLE;
 111
 112             rEvent.X = rEvt.GetPosPixel().X();
 113             rEvent.Y = rEvt.GetPosPixel().Y();
 114             rEvent.ClickCount = rEvt.GetClicks();
 115             rEvent.PopupTrigger = false;
 116         }
 117
 118     }
 119
 120
 121     //= UserInputInterception
 122
 123
 124     UserInputInterception::UserInputInterception( ::cppu::OWeakObject& _rControllerImpl, ::osl::Mutex& _rMutex )
 125         :m_pData( new UserInputInterception_Data( _rControllerImpl, _rMutex ) )
 126     {
 127     }
 128
 129
 130     UserInputInterception::~UserInputInterception()
 131     {
 132     }
 133
 134
 135     void UserInputInterception::addKeyHandler( const Reference< XKeyHandler >& _rxHandler )
 136     {
 137         if ( _rxHandler.is() )
 138             m_pData->m_aKeyHandlers.addInterface( _rxHandler );
 139     }
 140
 141
 142     void UserInputInterception::removeKeyHandler( const Reference< XKeyHandler >& _rxHandler )
 143     {
 144         m_pData->m_aKeyHandlers.removeInterface( _rxHandler );
 145     }
 146
 147
 148     void UserInputInterception::addMouseClickHandler( const Reference< XMouseClickHandler >& _rxHandler )
 149     {
 150         if ( _rxHandler.is() )
 151             m_pData->m_aMouseClickHandlers.addInterface( _rxHandler );
 152     }
 153
 154
 155     void UserInputInterception::removeMouseClickHandler( const Reference< XMouseClickHandler >& _rxHandler )
 156     {
 157         m_pData->m_aMouseClickHandlers.removeInterface( _rxHandler );
 158     }
 159
 160
 161     bool UserInputInterception::hasKeyHandlers() const
 162     {
 163         return m_pData->m_aKeyHandlers.getLength() > 0;
 164     }
 165
 166
 167     bool UserInputInterception::hasMouseClickListeners() const
 168     {
 169         return m_pData->m_aMouseClickHandlers.getLength() > 0;
 170     }
 171
 172
 173     bool UserInputInterception::handleNotifyEvent( const NotifyEvent& _rEvent )
 174     {
 175         Reference < XInterface > xHoldAlive( m_pData->m_rControllerImpl );
 176
 177         MouseNotifyEvent nType = _rEvent.GetType();
 178         bool bHandled = false;
 179
 180         switch ( nType )
 181         {
 182             case MouseNotifyEvent::KEYINPUT:
 183             case MouseNotifyEvent::KEYUP:
 184             {
 185                 KeyEvent aEvent;
 186                 lcl_initKeyEvent( aEvent, *_rEvent.GetKeyEvent() );
 187                 if ( _rEvent.GetWindow() )
 188                     aEvent.Source = _rEvent.GetWindow()->GetComponentInterface();
 189
 190                 ::comphelper::OInterfaceIteratorHelper2 aIterator( m_pData->m_aKeyHandlers );
 191                 while ( aIterator.hasMoreElements() )
 192                 {
 193                     Reference< XKeyHandler > xHandler( static_cast< XKeyHandler* >( aIterator.next() ) );
 194                     if ( !xHandler.is() )
 195                         continue;
 196
 197                     try
 198                     {
 199                         if ( nType == MouseNotifyEvent::KEYINPUT )
 200                             bHandled = xHandler->keyPressed( aEvent );
 201                         else
 202                             bHandled = xHandler->keyReleased( aEvent );
 203                     }
 204                     catch( const DisposedException& e )
 205                     {
 206                         if ( e.Context == xHandler )
 207                             aIterator.remove();
 208                     }
 209                     catch( const RuntimeException& )
 210                     {
 211                         throw;
 212                     }
 213                     catch( const Exception& )
 214                     {
 215                     }
 216                 }
 217             }
 218             break;
 219
 220             case MouseNotifyEvent::MOUSEBUTTONDOWN:
 221             case MouseNotifyEvent::MOUSEBUTTONUP:
 222             {
 223                 MouseEvent aEvent;
 224                 lcl_initMouseEvent( aEvent, *_rEvent.GetMouseEvent() );
 225                 if ( _rEvent.GetWindow() )
 226                     aEvent.Source = _rEvent.GetWindow()->GetComponentInterface();
 227
 228                 ::comphelper::OInterfaceIteratorHelper2 aIterator( m_pData->m_aMouseClickHandlers );
 229                 while ( aIterator.hasMoreElements() )
 230                 {
 231                     Reference< XMouseClickHandler > xHandler( static_cast< XMouseClickHandler* >( aIterator.next() ) );
 232                     if ( !xHandler.is() )
 233                         continue;
 234
 235                     try
 236                     {
 237                         if ( nType == MouseNotifyEvent::MOUSEBUTTONDOWN )
 238                             bHandled = xHandler->mousePressed( aEvent );
 239                         else
 240                             bHandled = xHandler->mouseReleased( aEvent );
 241                     }
 242                     catch( const DisposedException& e )
 243                     {
 244                         if ( e.Context == xHandler )
 245                             aIterator.remove();
 246                     }
 247                     catch( const RuntimeException& )
 248                     {
 249                         throw;
 250                     }
 251                     catch( const Exception& )
 252                     {
 253                     }
 254                 }
 255             }
 256             break;
 257
 258             default:
 259                 OSL_FAIL( "UserInputInterception::handleNotifyEvent: illegal event type!" );
 260                 break;
 261         }
 262
 263         return bHandled;
 264     }
 265
 266
 267 } // namespace sfx2
 268
 269
 270 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */