summaryrefslogtreecommitdiffstats
path: root/shell/source/win32/shlxthandler/ooofilt/ooofilt.hxx
blob: c178452ffcb5e325c9fea56483d793c02522d1ce (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
 */

#ifndef INCLUDED_SHELL_SOURCE_WIN32_SHLXTHANDLER_OOOFILT_OOOFILT_HXX
#define INCLUDED_SHELL_SOURCE_WIN32_SHLXTHANDLER_OOOFILT_OOOFILT_HXX

#include <types.hxx>

//+-------------------------------------------------------------------------
//  Contents:   LibreOffice filter declarations
//  Platform:   Windows 2000, Windows XP

//+-------------------------------------------------------------------------

class CContentReader;
class CMetaInfoReader;
class CFullPropSpec;

LONG g_lInstances = 0;                        // Global count of COooFilter and COooFilterCF instances
GUID const guidStorage = PSGUID_STORAGE;      // GUID for storage property set

//C-------------------------------------------------------------------------
//  Class:      COooFilter
//  Purpose:    Implements interfaces of LibreOffice filter

// OooFilter Class ID
// {7BC0E710-5703-45be-A29D-5D46D8B39262}
GUID const CLSID_COooFilter =
{
    0x7bc0e710,
    0x5703,
    0x45be,
    { 0xa2, 0x9d, 0x5d, 0x46, 0xd8, 0xb3, 0x92, 0x62 }
};

// LibreOffice Persistent Handler Class ID
// {7BC0E713-5703-45be-A29D-5D46D8B39262}
const CLSID CLSID_PERSISTENT_HANDLER =
{0x7bc0e713, 0x5703, 0x45be, {0xa2, 0x9d, 0x5d, 0x46, 0xd8, 0xb3, 0x92, 0x62}};

// LibreOffice Persistent Handler Addin Registered Class ID
// {89BCB740-6119-101A-BCB7-00DD010655AF}
const CLSID CLSID_PERSISTENT_HANDLER_ADDIN =
{0x89bcb740, 0x6119, 0x101a, {0xbc, 0xb7, 0x00, 0xdd, 0x01, 0x06, 0x55, 0xaf}};

// LibreOffice Filter Handler Class ID
// {7BC0E710-5703-45be-A29D-5D46D8B39262}
const CLSID CLSID_FILTER_HANDLER =
{0x7bc0e710, 0x5703, 0x45be, {0xa2, 0x9d, 0x5d, 0x46, 0xd8, 0xb3, 0x92, 0x62}};

enum class FilterState
{
    FilteringContent,                           // Filtering the content property
    FilteringProperty                           // Filtering the pseudo property
};
class COooFilter : public IFilter, public IPersistFile, public IPersistStream
{
public:
    // From IUnknown
    virtual  HRESULT STDMETHODCALLTYPE  QueryInterface(
        REFIID riid,
        void  ** ppvObject) override;
    virtual  ULONG STDMETHODCALLTYPE  AddRef() override;
    virtual  ULONG STDMETHODCALLTYPE  Release() override;

    // From IFilter
    virtual  SCODE STDMETHODCALLTYPE  Init(
        ULONG grfFlags,
        ULONG cAttributes,
        FULLPROPSPEC const * aAttributes,
        ULONG * pFlags) override;
    virtual  SCODE STDMETHODCALLTYPE  GetChunk(
        STAT_CHUNK * pStat) override;
    virtual  SCODE STDMETHODCALLTYPE  GetText(
        ULONG * pcwcBuffer,
        WCHAR * awcBuffer) override;

    virtual  SCODE STDMETHODCALLTYPE  GetValue(
        PROPVARIANT ** ppPropValue) override;

    virtual  SCODE STDMETHODCALLTYPE  BindRegion(
        FILTERREGION origPos,
        REFIID riid,
        void ** ppunk) override;

    // From IPersistFile
    virtual  HRESULT STDMETHODCALLTYPE  GetClassID(
        CLSID * pClassID) override;
    virtual  HRESULT STDMETHODCALLTYPE  IsDirty() override;
    virtual  HRESULT STDMETHODCALLTYPE  Load(
        LPCOLESTR pszFileName,
        DWORD dwMode) override;
    virtual  HRESULT STDMETHODCALLTYPE  Save(
        LPCOLESTR pszFileName,
        BOOL fRemember) override;

    virtual  HRESULT STDMETHODCALLTYPE  SaveCompleted(
        LPCOLESTR pszFileName) override;

    virtual  HRESULT STDMETHODCALLTYPE  GetCurFile(
        LPOLESTR  * ppszFileName) override;

    // From IPersistStream
    virtual HRESULT STDMETHODCALLTYPE  Load(
        IStream *pStm) override;

    virtual HRESULT STDMETHODCALLTYPE Save(
        IStream *pStm,
        BOOL fClearDirty) override;

    virtual HRESULT STDMETHODCALLTYPE  GetSizeMax(
        ULARGE_INTEGER *pcbSize) override;


private:
    friend class COooFilterCF;

    COooFilter();
    virtual ~COooFilter();

    LONG                      m_lRefs;                  // Reference count
    CContentReader *          m_pContentReader;         // A content reader that retrieves document content.
    CMetaInfoReader *         m_pMetaInfoReader;        // A metainfo reader that retrieves document metainfo.
    FilterState               m_eState;                 // State of filtering
    ::std::wstring            m_pwszFileName;           // Name of input file to filter
    ULONG                     m_ulUnicodeBufferLen;     // UNICODE Characters read from file to chunk buffer
    ULONG                     m_ulUnicodeCharsRead;     // UNICODE Characters read from chunk buffer
    ULONG                     m_ulPropertyNum;          // Number of properties that has been processed
    ULONG                     m_ulCurrentPropertyNum;   // Current Property that is processing;
    ULONG                     m_ulChunkID;              // Current chunk id
    bool                      m_fContents;              // TRUE if contents requested
    bool                      m_fEof;                   // TRUE if end of file reached
    ::std::wstring            m_pwsBuffer;              // Buffer to save UNICODE content from ChunkBuffer.
    ULONG                     m_ChunkPosition;          // Chunk pointer to specify the current Chunk;
    ULONG                     m_cAttributes;            // Count of attributes
    CFullPropSpec *           m_pAttributes;            // Attributes to filter
    StreamInterface *         m_pStream;

};

//C-------------------------------------------------------------------------
//  Class:      COooFilterCF
//  Purpose:    Implements class factory for LibreOffice filter


class COooFilterCF : public IClassFactory
{
public:
    // From IUnknown
    virtual  HRESULT STDMETHODCALLTYPE  QueryInterface(
        REFIID riid,
        void  ** ppvObject) override;

    virtual  ULONG STDMETHODCALLTYPE  AddRef() override;
    virtual  ULONG STDMETHODCALLTYPE  Release() override;

    // From IClassFactory
    virtual  HRESULT STDMETHODCALLTYPE  CreateInstance(
        IUnknown * pUnkOuter,
        REFIID riid, void  ** ppvObject) override;

    virtual  HRESULT STDMETHODCALLTYPE  LockServer(
        BOOL fLock) override;

private:
    friend HRESULT STDMETHODCALLTYPE DllGetClassObject(
        REFCLSID   cid,
        REFIID     iid,
        LPVOID *   ppvObj);

    COooFilterCF();
    virtual  ~COooFilterCF();

    LONG m_lRefs;           // Reference count
};

#endif // INCLUDED_SHELL_SOURCE_WIN32_SHLXTHANDLER_OOOFILT_OOOFILT_HXX

/* vim:set shiftwidth=4 softtabstop=4 expandtab: */