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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This Source Code Form is subject to the terms of the Mozilla Public
4 : * License, v. 2.0. If a copy of the MPL was not distributed with this
5 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
6 : */
7 :
8 : #ifndef INCLUDED_WRITERPERFECT_INC_WRITERPERFECT_IMPORTFILTER_HXX
9 : #define INCLUDED_WRITERPERFECT_INC_WRITERPERFECT_IMPORTFILTER_HXX
10 :
11 : #include <libodfgen/libodfgen.hxx>
12 :
13 : #include <librevenge/librevenge.h>
14 :
15 : #include <librevenge-stream/librevenge-stream.h>
16 :
17 : #include <com/sun/star/beans/PropertyValue.hpp>
18 : #include <com/sun/star/document/XExtendedFilterDetection.hpp>
19 : #include <com/sun/star/document/XFilter.hpp>
20 : #include <com/sun/star/document/XImporter.hpp>
21 : #include <com/sun/star/io/XInputStream.hpp>
22 : #include <com/sun/star/io/XSeekable.hpp>
23 : #include <com/sun/star/lang/XInitialization.hpp>
24 : #include <com/sun/star/lang/XServiceInfo.hpp>
25 : #include <com/sun/star/uno/Reference.h>
26 : #include <com/sun/star/uno/XComponentContext.hpp>
27 : #include <com/sun/star/xml/sax/InputSource.hpp>
28 : #include <com/sun/star/xml/sax/XDocumentHandler.hpp>
29 :
30 : #include <osl/diagnose.h>
31 : #include <cppuhelper/implbase1.hxx>
32 : #include <cppuhelper/implbase4.hxx>
33 :
34 : #include <unotools/mediadescriptor.hxx>
35 :
36 : #include <DocumentHandler.hxx>
37 : #include <WPXSvInputStream.hxx>
38 :
39 : #include <xmloff/attrlist.hxx>
40 :
41 : #include "DocumentHandlerFor.hxx"
42 :
43 : namespace writerperfect
44 : {
45 :
46 : namespace detail
47 : {
48 :
49 : template<class Generator>
50 : class ImportFilterImpl : public cppu::WeakImplHelper4
51 : <
52 : com::sun::star::document::XFilter,
53 : com::sun::star::document::XImporter,
54 : com::sun::star::document::XExtendedFilterDetection,
55 : com::sun::star::lang::XInitialization
56 : >
57 : {
58 : public:
59 5585 : ImportFilterImpl(const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > &rxContext)
60 5585 : : mxContext(rxContext)
61 : {
62 5585 : }
63 :
64 5585 : virtual ~ImportFilterImpl()
65 : {
66 5585 : }
67 :
68 : // XFilter
69 114 : virtual sal_Bool SAL_CALL filter(const ::com::sun::star::uno::Sequence< ::com::sun::star::beans::PropertyValue > &rDescriptor)
70 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE
71 : {
72 114 : utl::MediaDescriptor aDescriptor(rDescriptor);
73 228 : css::uno::Reference < css::io::XInputStream > xInputStream;
74 114 : aDescriptor[utl::MediaDescriptor::PROP_INPUTSTREAM()] >>= xInputStream;
75 114 : if (!xInputStream.is())
76 : {
77 : OSL_ASSERT(false);
78 0 : return sal_False;
79 : }
80 :
81 : // An XML import service: what we push sax messages to..
82 : css::uno::Reference < css::xml::sax::XDocumentHandler > xInternalHandler(
83 114 : mxContext->getServiceManager()->createInstanceWithContext(
84 : DocumentHandlerFor<Generator>::name(), mxContext),
85 228 : css::uno::UNO_QUERY_THROW);
86 :
87 : // The XImporter sets up an empty target document for XDocumentHandler to write to..
88 228 : css::uno::Reference < css::document::XImporter > xImporter(xInternalHandler, css::uno::UNO_QUERY);
89 114 : xImporter->setTargetDocument(mxDoc);
90 :
91 : // OO Graphics Handler: abstract class to handle document SAX messages, concrete implementation here
92 : // writes to in-memory target doc
93 228 : DocumentHandler xHandler(xInternalHandler);
94 :
95 228 : WPXSvInputStream input(xInputStream);
96 :
97 228 : Generator exporter;
98 114 : exporter.addDocumentHandler(&xHandler, ODF_FLAT_XML);
99 :
100 114 : this->doRegisterHandlers(exporter);
101 :
102 228 : return this->doImportDocument(input, exporter, aDescriptor);
103 : }
104 :
105 0 : virtual void SAL_CALL cancel()
106 : throw (::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE
107 : {
108 0 : }
109 :
110 : // XImporter
111 116 : virtual void SAL_CALL setTargetDocument(const ::com::sun::star::uno::Reference< ::com::sun::star::lang::XComponent > &xDoc)
112 : throw (::com::sun::star::lang::IllegalArgumentException, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE
113 : {
114 116 : mxDoc = xDoc;
115 116 : }
116 :
117 : //XExtendedFilterDetection
118 5574 : virtual OUString SAL_CALL detect(com::sun::star::uno::Sequence< com::sun::star::beans::PropertyValue > &Descriptor)
119 : throw(com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE
120 : {
121 5574 : OUString sTypeName;
122 5574 : sal_Int32 nLength = Descriptor.getLength();
123 5574 : sal_Int32 location = nLength;
124 5574 : const css::beans::PropertyValue *pValue = Descriptor.getConstArray();
125 11148 : css::uno::Reference < css::io::XInputStream > xInputStream;
126 49389 : for (sal_Int32 i = 0 ; i < nLength; i++)
127 : {
128 43815 : if (pValue[i].Name == "TypeName")
129 5463 : location=i;
130 38352 : else if (pValue[i].Name == "InputStream")
131 5574 : pValue[i].Value >>= xInputStream;
132 : }
133 :
134 5574 : if (!xInputStream.is())
135 0 : return OUString();
136 :
137 11148 : WPXSvInputStream input(xInputStream);
138 :
139 5574 : if (this->doDetectFormat(input, sTypeName))
140 : {
141 : assert(!sTypeName.isEmpty());
142 :
143 110 : if (location == nLength)
144 : {
145 110 : Descriptor.realloc(nLength+1);
146 110 : Descriptor[location].Name = "TypeName";
147 : }
148 :
149 110 : Descriptor[location].Value <<=sTypeName;
150 : }
151 :
152 11148 : return sTypeName;
153 : }
154 :
155 : // XInitialization
156 0 : virtual void SAL_CALL initialize(const ::com::sun::star::uno::Sequence< ::com::sun::star::uno::Any > &aArguments)
157 : throw (::com::sun::star::uno::Exception, ::com::sun::star::uno::RuntimeException, std::exception) SAL_OVERRIDE
158 : {
159 0 : css::uno::Sequence < css::beans::PropertyValue > aAnySeq;
160 0 : sal_Int32 nLength = aArguments.getLength();
161 0 : if (nLength && (aArguments[0] >>= aAnySeq))
162 : {
163 0 : const css::beans::PropertyValue *pValue = aAnySeq.getConstArray();
164 0 : nLength = aAnySeq.getLength();
165 0 : for (sal_Int32 i = 0 ; i < nLength; i++)
166 : {
167 0 : if (pValue[i].Name == "Type")
168 : {
169 0 : pValue[i].Value >>= msFilterName;
170 0 : break;
171 : }
172 : }
173 0 : }
174 0 : }
175 :
176 : private:
177 : virtual bool doDetectFormat(librevenge::RVNGInputStream &rInput, OUString &rTypeName) = 0;
178 : virtual bool doImportDocument(librevenge::RVNGInputStream &rInput, Generator &rGenerator, utl::MediaDescriptor &rDescriptor) = 0;
179 23 : virtual void doRegisterHandlers(Generator &)
180 : {
181 23 : }
182 :
183 : private:
184 : ::com::sun::star::uno::Reference< ::com::sun::star::uno::XComponentContext > mxContext;
185 : ::com::sun::star::uno::Reference< ::com::sun::star::lang::XComponent > mxDoc;
186 : OUString msFilterName;
187 : ::com::sun::star::uno::Reference< ::com::sun::star::xml::sax::XDocumentHandler > mxHandler;
188 : };
189 :
190 : }
191 :
192 : /** A base class for import filters.
193 : */
194 : template<class Generator>
195 5585 : struct ImportFilter : public cppu::ImplInheritanceHelper1<detail::ImportFilterImpl<Generator>, com::sun::star::lang::XServiceInfo>
196 : {
197 5585 : ImportFilter(const css::uno::Reference<css::uno::XComponentContext> &rxContext)
198 5585 : : cppu::ImplInheritanceHelper1<detail::ImportFilterImpl<Generator>, com::sun::star::lang::XServiceInfo>(rxContext)
199 : {
200 5585 : }
201 : };
202 :
203 : }
204 :
205 : #endif // INCLUDED_WRITERPERFECT_INC_WRITERPERFECT_IMPORTFILTER_HXX
206 :
207 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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