1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_sfx2.hxx"
26 #include <tools/stream.hxx>
27 #include <tools/cachestr.hxx>
28
29 #include <sot/storage.hxx>
30 #include <sot/formats.hxx>
31
32 #include <sfx2/mieclip.hxx>
33 #include <sfx2/sfxuno.hxx>
34
~MSE40HTMLClipFormatObj()35 MSE40HTMLClipFormatObj::~MSE40HTMLClipFormatObj()
36 {
37 delete pStrm;
38 }
39
IsValid(SvStream & rStream)40 SvStream* MSE40HTMLClipFormatObj::IsValid( SvStream& rStream )
41 {
42 sal_Bool bRet = sal_False;
43 if( pStrm )
44 delete pStrm, pStrm = 0;
45
46 ByteString sLine, sVersion;
47 sal_Int32 nStt = -1, nEnd = -1;
48 sal_Int32 nStartFragment = 0, nEndFragment = 0;
49 sal_uInt16 nIndex = 0;
50
51 rStream.Seek(STREAM_SEEK_TO_BEGIN);
52 rStream.ResetError();
53
54 if( rStream.ReadLine( sLine ) &&
55 sLine.GetToken( 0, ':', nIndex ) == "Version" )
56 {
57 sVersion = sLine.Copy( nIndex );
58 while( rStream.ReadLine( sLine ) )
59 {
60 nIndex = 0;
61 ByteString sTmp( sLine.GetToken( 0, ':', nIndex ) );
62 if( sTmp == "StartHTML" )
63 nStt = sLine.Erase( 0, nIndex ).ToInt32();
64 else if( sTmp == "EndHTML" )
65 nEnd = sLine.Erase( 0, nIndex ).ToInt32();
66 else if( sTmp == "StartFragment" )
67 {
68 nStartFragment = sLine.Erase( 0, nIndex ).ToInt32();
69 if( nStt == -1 )
70 nStt = nStartFragment;
71 }
72 else if( sTmp == "EndFragment" )
73 {
74 nEndFragment = sLine.Erase( 0, nIndex ).ToInt32();
75 if (nEnd == -1 )
76 nEnd = nEndFragment;
77 }
78 else if( sTmp == "SourceURL" )
79 sBaseURL = String( sLine.Erase( 0, nIndex ), RTL_TEXTENCODING_UTF8);
80
81 if( nEnd >= 0 && nStt >= 0 &&
82 ( sBaseURL.Len() || rStream.Tell() >= (sal_uInt32)nStt ))
83 {
84 bRet = sal_True;
85 break;
86 }
87 }
88 }
89
90 if( bRet )
91 {
92 rStream.Seek( nStt );
93
94 pStrm = new SvCacheStream( ( nEnd - nStt < 0x10000l
95 ? nEnd - nStt + 32
96 : 0 ));
97 *pStrm << rStream;
98 pStrm->SetStreamSize( nEnd - nStt + 1L );
99 pStrm->Seek( STREAM_SEEK_TO_BEGIN );
100 }
101
102 return pStrm;
103 }
104
105