INTEGRATION: CWS frmcontrols03 (1.1.2); FILE ADDED

2004/04/13 08:03:17 fs 1.1.2.4: #i27596#
2004/03/02 15:39:30 fs 1.1.2.3: assertion adjusted
2004/02/23 11:35:41 fs 1.1.2.2: some more implementations (mainly CJK relevant)
2004/02/18 15:23:53 fs 1.1.2.1: dispatching clipboard related functionality to a rich text control

forms/source/richtext/clipboarddispatcher.cxx

+/*************************************************************************
+ *
+ *  $RCSfile: clipboarddispatcher.cxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: rt $ $Date: 2004-05-07 16:11:10 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (the "License"); You may not use this file
+ *  except in compliance with the License. You may obtain a copy of the
+ *  License at http://www.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#ifndef FORMS_SOURCE_RICHTEXT_CLIPBOARDDISPATCHER_HXX
+#include "clipboarddispatcher.hxx"
+#endif
+
+#ifndef _MyEDITVIEW_HXX
+#include <svx/editview.hxx>
+#endif
+
+/** === begin UNO includes === **/
+#ifndef _COM_SUN_STAR_LANG_DISPOSEDEXCEPTION_HPP_
+#include <com/sun/star/lang/DisposedException.hpp>
+#endif
+/** === end UNO includes === **/
+
+#ifndef _CLIPLISTENER_HXX
+#include <svtools/cliplistener.hxx>
+#endif
+#ifndef _TRANSFER_HXX
+#include <svtools/transfer.hxx>
+#endif
+
+//........................................................................
+namespace frm
+{
+//........................................................................
+
+    using namespace ::com::sun::star::uno;
+    using namespace ::com::sun::star::frame;
+    using namespace ::com::sun::star::lang;
+    using namespace ::com::sun::star::util;
+    using namespace ::com::sun::star::beans;
+
+    //====================================================================
+    namespace
+    {
+        static URL createClipboardURL( OClipboardDispatcher::ClipboardFunc _eFunc )
+        {
+            URL aURL;
+            switch ( _eFunc )
+            {
+            case OClipboardDispatcher::eCut:
+                aURL.Complete = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( ".uno:Cut" ) );
+                break;
+            case OClipboardDispatcher::eCopy:
+                aURL.Complete = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( ".uno:Copy" ) );
+                break;
+            case OClipboardDispatcher::ePaste:
+                aURL.Complete = ::rtl::OUString( RTL_CONSTASCII_USTRINGPARAM( ".uno:Paste" ) );
+                break;
+            }
+            return aURL;
+        }
+    }
+
+    //====================================================================
+    //= OClipboardDispatcher
+    //====================================================================
+    //--------------------------------------------------------------------
+    OClipboardDispatcher::OClipboardDispatcher( EditView& _rView, ClipboardFunc _eFunc )
+        :ORichTextFeatureDispatcher( _rView, createClipboardURL( _eFunc ) )
+        ,m_eFunc( _eFunc )
+        ,m_bLastKnownEnabled( sal_True )
+    {
+    }
+
+    //--------------------------------------------------------------------
+    sal_Bool OClipboardDispatcher::implIsEnabled( ) const
+    {
+        sal_Bool bEnabled = sal_False;
+        switch ( m_eFunc )
+        {
+        case eCut:
+            bEnabled = !getEditView()->IsReadOnly() && getEditView()->HasSelection();
+            break;
+
+        case eCopy:
+            bEnabled = getEditView()->HasSelection();
+            break;
+
+        case ePaste:
+            bEnabled = !getEditView()->IsReadOnly();
+            break;
+        }
+        return bEnabled;
+    }
+
+    //--------------------------------------------------------------------
+    FeatureStateEvent OClipboardDispatcher::buildStatusEvent() const
+    {
+        FeatureStateEvent aEvent( ORichTextFeatureDispatcher::buildStatusEvent() );
+        aEvent.IsEnabled = implIsEnabled();
+        return aEvent;
+    }
+
+    //--------------------------------------------------------------------
+    void OClipboardDispatcher::invalidateFeatureState_Broadcast()
+    {
+        sal_Bool bEnabled = implIsEnabled();
+        if ( m_bLastKnownEnabled == bEnabled )
+            // nothing changed -> no notification
+            return;
+        m_bLastKnownEnabled = bEnabled;
+
+        ORichTextFeatureDispatcher::invalidateFeatureState_Broadcast();
+    }
+
+    //--------------------------------------------------------------------
+    void SAL_CALL OClipboardDispatcher::dispatch( const URL& URL, const Sequence< PropertyValue >& Arguments ) throw (RuntimeException)
+    {
+        ::osl::MutexGuard aGuard( m_aMutex );
+        if ( !getEditView() )
+            throw DisposedException();
+
+        switch ( m_eFunc )
+        {
+        case eCut:
+            getEditView()->Cut();
+            break;
+
+        case eCopy:
+            getEditView()->Copy();
+            break;
+
+        case ePaste:
+            getEditView()->Paste();
+            break;
+        }
+    }
+
+    //====================================================================
+    //= OPasteClipboardDispatcher
+    //====================================================================
+    //--------------------------------------------------------------------
+    OPasteClipboardDispatcher::OPasteClipboardDispatcher( EditView& _rView )
+        :OClipboardDispatcher( _rView, ePaste )
+        ,m_pClipListener( NULL )
+        ,m_bPastePossible( sal_False )
+    {
+        m_pClipListener = new TransferableClipboardListener( LINK( this, OPasteClipboardDispatcher, OnClipboardChanged ) );
+        m_pClipListener->acquire();
+        m_pClipListener->AddRemoveListener( _rView.GetWindow(), TRUE );
+
+        // initial state
+        TransferableDataHelper aDataHelper( TransferableDataHelper::CreateFromSystemClipboard( _rView.GetWindow() ) );
+        m_bPastePossible = ( aDataHelper.HasFormat( SOT_FORMAT_STRING ) || aDataHelper.HasFormat( SOT_FORMAT_RTF ) );
+    }
+
+    //--------------------------------------------------------------------
+    OPasteClipboardDispatcher::~OPasteClipboardDispatcher()
+    {
+        if ( !isDisposed() )
+        {
+            acquire();
+            dispose();
+        }
+    }
+
+    //--------------------------------------------------------------------
+    IMPL_LINK( OPasteClipboardDispatcher, OnClipboardChanged, TransferableDataHelper*, _pDataHelper )
+    {
+        OSL_ENSURE( _pDataHelper, "OPasteClipboardDispatcher::OnClipboardChanged: ooops!" );
+        m_bPastePossible = _pDataHelper->HasFormat( SOT_FORMAT_STRING )
+                        || _pDataHelper->HasFormat( SOT_FORMAT_RTF );
+
+        invalidate();
+
+        return 0L;
+    }
+
+    //--------------------------------------------------------------------
+    void OPasteClipboardDispatcher::disposing( ::osl::ClearableMutexGuard& _rClearBeforeNotify )
+    {
+        OSL_ENSURE( getEditView() && getEditView()->GetWindow(), "OPasteClipboardDispatcher::disposing: EditView should not (yet) be disfunctional here!" );
+        if ( getEditView() && getEditView()->GetWindow() && m_pClipListener )
+            m_pClipListener->AddRemoveListener( getEditView()->GetWindow(), FALSE );
+        m_pClipListener->release();
+        m_pClipListener = NULL;
+
+        OClipboardDispatcher::disposing( _rClearBeforeNotify );
+    }
+
+    //--------------------------------------------------------------------
+    sal_Bool OPasteClipboardDispatcher::implIsEnabled( ) const
+    {
+        return m_bPastePossible && OClipboardDispatcher::implIsEnabled();
+    }
+
+//........................................................................
+}   // namespace frm
+//........................................................................
+