forms/source/richtext/clipboarddispatcher.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 #include "clipboarddispatcher.hxx"
  21 #include <editeng/editview.hxx>
  22
  23 #include <com/sun/star/lang/DisposedException.hpp>
  24 #include <svtools/cliplistener.hxx>
  25 #include <svtools/transfer.hxx>
  26
  27 //........................................................................
  28 namespace frm
  29 {
  30 //........................................................................
  31
  32     using namespace ::com::sun::star::uno;
  33     using namespace ::com::sun::star::frame;
  34     using namespace ::com::sun::star::lang;
  35     using namespace ::com::sun::star::util;
  36     using namespace ::com::sun::star::beans;
  37
  38     //====================================================================
  39     namespace
  40     {
  41         static URL createClipboardURL( OClipboardDispatcher::ClipboardFunc _eFunc )
  42         {
  43             URL aURL;
  44             switch ( _eFunc )
  45             {
  46             case OClipboardDispatcher::eCut:
  47                 aURL.Complete = OUString( ".uno:Cut" );
  48                 break;
  49             case OClipboardDispatcher::eCopy:
  50                 aURL.Complete = OUString( ".uno:Copy" );
  51                 break;
  52             case OClipboardDispatcher::ePaste:
  53                 aURL.Complete = OUString( ".uno:Paste" );
  54                 break;
  55             }
  56             return aURL;
  57         }
  58     }
  59
  60     //====================================================================
  61     //= OClipboardDispatcher
  62     //====================================================================
  63     //--------------------------------------------------------------------
  64     OClipboardDispatcher::OClipboardDispatcher( EditView& _rView, ClipboardFunc _eFunc )
  65         :ORichTextFeatureDispatcher( _rView, createClipboardURL( _eFunc ) )
  66         ,m_eFunc( _eFunc )
  67         ,m_bLastKnownEnabled( sal_True )
  68     {
  69     }
  70
  71     //--------------------------------------------------------------------
  72     sal_Bool OClipboardDispatcher::implIsEnabled( ) const
  73     {
  74         sal_Bool bEnabled = sal_False;
  75         switch ( m_eFunc )
  76         {
  77         case eCut:
  78             bEnabled = !getEditView()->IsReadOnly() && getEditView()->HasSelection();
  79             break;
  80
  81         case eCopy:
  82             bEnabled = getEditView()->HasSelection();
  83             break;
  84
  85         case ePaste:
  86             bEnabled = !getEditView()->IsReadOnly();
  87             break;
  88         }
  89         return bEnabled;
  90     }
  91
  92     //--------------------------------------------------------------------
  93     FeatureStateEvent OClipboardDispatcher::buildStatusEvent() const
  94     {
  95         FeatureStateEvent aEvent( ORichTextFeatureDispatcher::buildStatusEvent() );
  96         aEvent.IsEnabled = implIsEnabled();
  97         return aEvent;
  98     }
  99
 100     //--------------------------------------------------------------------
 101     void OClipboardDispatcher::invalidateFeatureState_Broadcast()
 102     {
 103         sal_Bool bEnabled = implIsEnabled();
 104         if ( m_bLastKnownEnabled == bEnabled )
 105             // nothing changed -> no notification
 106             return;
 107         m_bLastKnownEnabled = bEnabled;
 108
 109         ORichTextFeatureDispatcher::invalidateFeatureState_Broadcast();
 110     }
 111
 112     //--------------------------------------------------------------------
 113     void SAL_CALL OClipboardDispatcher::dispatch( const URL& /*_rURL*/, const Sequence< PropertyValue >& /*Arguments*/ ) throw (RuntimeException)
 114     {
 115         ::osl::MutexGuard aGuard( m_aMutex );
 116         if ( !getEditView() )
 117             throw DisposedException();
 118
 119         switch ( m_eFunc )
 120         {
 121         case eCut:
 122             getEditView()->Cut();
 123             break;
 124
 125         case eCopy:
 126             getEditView()->Copy();
 127             break;
 128
 129         case ePaste:
 130             getEditView()->Paste();
 131             break;
 132         }
 133     }
 134
 135     //====================================================================
 136     //= OPasteClipboardDispatcher
 137     //====================================================================
 138     //--------------------------------------------------------------------
 139     OPasteClipboardDispatcher::OPasteClipboardDispatcher( EditView& _rView )
 140         :OClipboardDispatcher( _rView, ePaste )
 141         ,m_pClipListener( NULL )
 142         ,m_bPastePossible( sal_False )
 143     {
 144         m_pClipListener = new TransferableClipboardListener( LINK( this, OPasteClipboardDispatcher, OnClipboardChanged ) );
 145         m_pClipListener->acquire();
 146         m_pClipListener->AddRemoveListener( _rView.GetWindow(), sal_True );
 147
 148         // initial state
 149         TransferableDataHelper aDataHelper( TransferableDataHelper::CreateFromSystemClipboard( _rView.GetWindow() ) );
 150         m_bPastePossible = ( aDataHelper.HasFormat( SOT_FORMAT_STRING ) || aDataHelper.HasFormat( SOT_FORMAT_RTF ) );
 151     }
 152
 153     //--------------------------------------------------------------------
 154     OPasteClipboardDispatcher::~OPasteClipboardDispatcher()
 155     {
 156         if ( !isDisposed() )
 157         {
 158             acquire();
 159             dispose();
 160         }
 161     }
 162
 163     //--------------------------------------------------------------------
 164     IMPL_LINK( OPasteClipboardDispatcher, OnClipboardChanged, TransferableDataHelper*, _pDataHelper )
 165     {
 166         OSL_ENSURE( _pDataHelper, "OPasteClipboardDispatcher::OnClipboardChanged: ooops!" );
 167         m_bPastePossible = _pDataHelper->HasFormat( SOT_FORMAT_STRING )
 168                         || _pDataHelper->HasFormat( SOT_FORMAT_RTF );
 169
 170         invalidate();
 171
 172         return 0L;
 173     }
 174
 175     //--------------------------------------------------------------------
 176     void OPasteClipboardDispatcher::disposing( ::osl::ClearableMutexGuard& _rClearBeforeNotify )
 177     {
 178         OSL_ENSURE( getEditView() && getEditView()->GetWindow(), "OPasteClipboardDispatcher::disposing: EditView should not (yet) be disfunctional here!" );
 179         if ( getEditView() && getEditView()->GetWindow() && m_pClipListener )
 180             m_pClipListener->AddRemoveListener( getEditView()->GetWindow(), sal_False );
 181         m_pClipListener->release();
 182         m_pClipListener = NULL;
 183
 184         OClipboardDispatcher::disposing( _rClearBeforeNotify );
 185     }
 186
 187     //--------------------------------------------------------------------
 188     sal_Bool OPasteClipboardDispatcher::implIsEnabled( ) const
 189     {
 190         return m_bPastePossible && OClipboardDispatcher::implIsEnabled();
 191     }
 192
 193 //........................................................................
 194 }   // namespace frm
 195 //........................................................................
 196
 197 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */