INTEGRATION: CWS eforms2 (1.1.2); FILE ADDED

2004/08/06 16:18:15 dvo 1.1.2.10: #i31958# continue XForms implementation
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2004/08/05 09:24:16 dvo 1.1.2.9: #i31958# continue XForms implementation
2004/08/02 13:49:44 dvo 1.1.2.8: #i31958# continue XForms implementation
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2004/07/26 16:45:18 dvo 1.1.2.7: #i31958# continue XForms implementation
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2004/06/01 09:41:29 dvo 1.1.2.6: #114856# support controls with datatype 'double', lazy authoring, error message for invalid binding expressions
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2004/05/26 15:18:27 dvo 1.1.2.5: #114856# continue XForms implementation
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2004/04/22 09:20:38 dvo 1.1.2.4: #114856# remove listener handling from PathExpression
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2004/04/22 09:13:36 dvo 1.1.2.3: #114856# improve dynamic binding capability
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2004/04/07 13:29:49 dvo 1.1.2.2: #114856# continue implementation
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2004/03/18 17:08:36 dvo 1.1.2.1: #114856# continue XForms implementation

1 files changed, 194 insertions, 0 deletions

diff --git a/forms/source/xforms/pathexpression.cxx b/forms/source/xforms/pathexpression.cxx
new file mode 100644
index 000000000000..448550dc07d7
--- /dev/null
+++ b/forms/source/xforms/pathexpression.cxx
@@ -0,0 +1,194 @@
+/*************************************************************************
+ *
+ *  $RCSfile: pathexpression.cxx,v $
+ *
+ *  $Revision: 1.2 $
+ *
+ *  last change: $Author: obo $ $Date: 2004-11-16 10:55:06 $
+ *
+ *  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): _______________________________________
+ *
+ *
+ ************************************************************************/
+
+#include "pathexpression.hxx"
+#include "unohelper.hxx"
+#include "evaluationcontext.hxx"
+#include "NameContainer.hxx"
+#include "xmlhelper.hxx"
+
+#include <com/sun/star/xml/dom/XNode.hpp>
+#include <com/sun/star/xml/dom/XNodeList.hpp>
+#include <com/sun/star/xml/dom/NodeType.hpp>
+#include <com/sun/star/xml/dom/events/XEventListener.hpp>
+#include <com/sun/star/xml/dom/events/XEventTarget.hpp>
+#include <com/sun/star/xml/xpath/XXPathObject.hpp>
+#include <com/sun/star/xml/xpath/XXPathAPI.hpp>
+#include <com/sun/star/container/XNameContainer.hpp>
+#include <com/sun/star/uno/Sequence.hxx>
+#include <rtl/ustrbuf.hxx>
+
+#include <unotools/textsearch.hxx>
+
+#include <algorithm>
+#include <functional>
+
+
+using rtl::OUString;
+using rtl::OUStringBuffer;
+using com::sun::star::uno::Reference;
+using com::sun::star::uno::Sequence;
+using com::sun::star::xml::dom::XNode;
+using com::sun::star::xml::dom::XNodeList;
+using com::sun::star::xml::dom::events::XEventListener;
+using com::sun::star::xml::dom::events::XEventTarget;
+using com::sun::star::container::XNameContainer;
+using com::sun::star::xml::xpath::XXPathAPI;
+using com::sun::star::xml::xpath::XXPathObject;
+using com::sun::star::uno::RuntimeException;
+using com::sun::star::uno::UNO_QUERY;
+using com::sun::star::uno::UNO_QUERY_THROW;
+using com::sun::star::xml::dom::NodeType_TEXT_NODE;
+using com::sun::star::xml::xpath::XPathObjectType_XPATH_UNDEFINED;
+using namespace std;
+
+
+
+
+namespace xforms
+{
+
+PathExpression::PathExpression()
+    : ComputedExpression(),
+      maNodes()
+{
+}
+
+PathExpression::~PathExpression()
+{
+}
+
+
+
+void PathExpression::setExpression( const OUString& rExpression )
+{
+    // set new expression, and clear pre-computed results
+    ComputedExpression::setExpression( rExpression );
+
+    // check expression against regular expression to determine
+    // whether it contains only 'simple' (i.e. static) conditions. For
+    // now, we check whether it only contains number positions.
+    // (TODO: Only works for names containing only ASCII letters+digits.)
+    mbIsSimple =
+        _checkExpression( "( */@?[a-zA-Z0-9:]+( *\\[ *[0-9 ]+ *\\] *)?)+" );
+
+    maNodes.clear();
+}
+
+const rtl::OUString PathExpression::_getExpressionForEvaluation() const
+{
+    OUString sExpr = ComputedExpression::_getExpressionForEvaluation();
+    if( sExpr.getLength() == 0 )
+        sExpr = OUSTRING(".");
+    return sExpr;
+}
+
+bool PathExpression::evaluate( const EvaluationContext& rContext )
+{
+    // for simple expression we don't need to re-bind (if we were bound before)
+    // (we will evaluate empty expressions, since they are interpreted as ".")
+    if( mxResult.is() && isSimpleExpression() )
+        return true;
+
+    bool bResult = _evaluate( rContext, _getExpressionForEvaluation() );
+
+    // clear old result, and copy new
+    maNodes.clear();
+    if( mxResult.is() )
+    {
+        // copy node list
+        Reference<XNodeList> xNodeList = mxResult->getNodeList();
+        OSL_ENSURE( xNodeList.is(), "empty object (instead of empty list)" );
+        sal_Int32 nLength = xNodeList.is() ? xNodeList->getLength() : 0;
+        for( sal_Int32 n = 0; n < nLength; n++ )
+            maNodes.push_back( xNodeList->item( n ) );
+    }
+
+    return bResult;
+}
+
+
+bool PathExpression::isElementName() const
+{
+    return isValidQName( getExpression(), getNamespaces() );
+}
+
+
+Reference<XNode> PathExpression::getNode() const
+{
+    Reference<XNode> xResult;
+    if( ! maNodes.empty() )
+        xResult = *maNodes.begin();
+    return xResult;
+}
+
+const PathExpression::NodeVector_t PathExpression::getNodeList() const
+{
+    return maNodes;
+}
+
+Reference<XNodeList> PathExpression::getXNodeList() const
+{
+    return mxResult.is() ? mxResult->getNodeList() : Reference<XNodeList>();
+}
+
+
+} // namespace xforms