intl/unicharutil/src/nsSaveAsCharset.h

branch
TOR_BUG_3246
changeset 4
fc2d59ddac77
equal deleted inserted replaced
-1:000000000000 0:10eaf442bb9f
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /* This Source Code Form is subject to the terms of the Mozilla Public
3 * License, v. 2.0. If a copy of the MPL was not distributed with this
4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
5
6 #ifndef nsSaveAsCharset_h__
7 #define nsSaveAsCharset_h__
8
9 #include "nsStringFwd.h"
10 #include "nsTArray.h"
11 #include "nsISaveAsCharset.h"
12
13
14 #define MASK_FALLBACK(a) (nsISaveAsCharset::mask_Fallback & (a))
15 #define MASK_ENTITY(a) (nsISaveAsCharset::mask_Entity & (a))
16 #define MASK_CHARSET_FALLBACK(a) (nsISaveAsCharset::mask_CharsetFallback & (a))
17 #define ATTR_NO_FALLBACK(a) (nsISaveAsCharset::attr_FallbackNone == MASK_FALLBACK(a) && \
18 nsISaveAsCharset::attr_EntityAfterCharsetConv != MASK_ENTITY(a))
19
20 class nsIUnicodeEncoder;
21 class nsIEntityConverter;
22
23 class nsSaveAsCharset : public nsISaveAsCharset
24 {
25 public:
26
27 //
28 // implementation methods
29 //
30 nsSaveAsCharset();
31 virtual ~nsSaveAsCharset();
32
33 //
34 // nsISupports
35 //
36 NS_DECL_ISUPPORTS
37
38 //
39 // nsIEntityConverter
40 //
41 NS_IMETHOD Init(const char *charset, uint32_t attr, uint32_t entityVersion);
42
43 NS_IMETHOD Convert(const char16_t *inString, char **_retval);
44
45 NS_IMETHODIMP GetCharset(char * *aCharset);
46
47 protected:
48
49 NS_IMETHOD DoCharsetConversion(const char16_t *inString, char **outString);
50
51 NS_IMETHOD DoConversionFallBack(uint32_t inUCS4, char *outString, int32_t bufferLength);
52
53 // do the fallback, reallocate the buffer if necessary
54 // need to pass destination buffer info (size, current position and estimation of rest of the conversion)
55 NS_IMETHOD HandleFallBack(uint32_t character, char **outString, int32_t *bufferLength,
56 int32_t *currentPos, int32_t estimatedLength);
57
58 nsresult SetupUnicodeEncoder(const char* charset);
59
60 nsresult SetupCharsetList(const char *charsetList);
61
62 const char * GetNextCharset();
63
64 uint32_t mAttribute; // conversion attribute
65 uint32_t mEntityVersion; // see nsIEntityConverter
66 nsCOMPtr<nsIUnicodeEncoder> mEncoder; // encoder (convert from unicode)
67 nsCOMPtr<nsIEntityConverter> mEntityConverter;
68 nsTArray<nsCString> mCharsetList;
69 int32_t mCharsetListIndex;
70 };
71
72 #endif

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