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
|
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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/. */
#include "nsCOMPtr.h"
#include "nsString.h"
#include "nsUnicharUtils.h"
#include "nsCharsetAlias.h"
#include "nsICharsetConverterManager.h"
#include "nsIStringBundle.h"
#include "nsTArray.h"
#include "mozilla/Components.h"
#include "nsComponentManagerUtils.h"
#include "nsServiceManagerUtils.h"
#include "../base/src/nsMsgI18N.h"
// just for CONTRACTIDs
#include "nsCharsetConverterManager.h"
static nsCOMPtr<nsIStringBundle> sDataBundle;
static nsCOMPtr<nsIStringBundle> sTitleBundle;
// Class nsCharsetConverterManager [implementation]
NS_IMPL_ISUPPORTS(nsCharsetConverterManager, nsICharsetConverterManager)
nsCharsetConverterManager::nsCharsetConverterManager() {}
nsCharsetConverterManager::~nsCharsetConverterManager() {
sDataBundle = nullptr;
sTitleBundle = nullptr;
}
static nsresult LoadBundle(const char* aBundleURLSpec,
nsIStringBundle** aResult) {
nsCOMPtr<nsIStringBundleService> sbServ =
mozilla::components::StringBundle::Service();
if (!sbServ) return NS_ERROR_FAILURE;
return sbServ->CreateBundle(aBundleURLSpec, aResult);
}
static nsresult GetBundleValueInner(nsIStringBundle* aBundle, const char* aName,
const nsString& aProp, nsAString& aResult) {
nsAutoString key;
CopyASCIItoUTF16(mozilla::MakeStringSpan(aName), key);
ToLowerCase(key); // we lowercase the main comparison key
key.Append(aProp);
return aBundle->GetStringFromName(NS_ConvertUTF16toUTF8(key).get(), aResult);
}
static nsresult GetBundleValue(nsIStringBundle* aBundle, const char* aName,
const nsString& aProp, nsAString& aResult) {
nsresult rv = NS_OK;
nsAutoString value;
rv = GetBundleValueInner(aBundle, aName, aProp, value);
if (NS_FAILED(rv)) return rv;
aResult = value;
return NS_OK;
}
static nsresult GetCharsetDataImpl(const char* aCharset, const char16_t* aProp,
nsAString& aResult) {
NS_ENSURE_ARG_POINTER(aCharset);
// aProp can be nullptr
if (!sDataBundle) {
nsresult rv = LoadBundle("resource://gre-resources/charsetData.properties",
getter_AddRefs(sDataBundle));
if (NS_FAILED(rv)) return rv;
}
return GetBundleValue(sDataBundle, aCharset, nsDependentString(aProp),
aResult);
}
// static
bool nsCharsetConverterManager::IsInternal(const nsACString& aCharset) {
nsAutoString str;
// fully qualify to possibly avoid vtable call
nsresult rv = GetCharsetDataImpl(PromiseFlatCString(aCharset).get(),
u".isInternal", str);
return NS_SUCCEEDED(rv);
}
//----------------------------------------------------------------------------//----------------------------------------------------------------------------
// Interface nsICharsetConverterManager [implementation]
// XXX Improve the implementation of this method. Right now, it is build on
// top of the nsCharsetAlias service. We can make the nsCharsetAlias
// better, with its own hash table (not the StringBundle anymore) and
// a nicer file format.
NS_IMETHODIMP
nsCharsetConverterManager::GetCharsetAlias(const char* aCharset,
nsACString& aResult) {
NS_ENSURE_ARG_POINTER(aCharset);
// We try to obtain the preferred name for this charset from the charset
// aliases.
nsresult rv;
rv = nsCharsetAlias::GetPreferred(nsDependentCString(aCharset), aResult);
NS_ENSURE_SUCCESS(rv, rv);
return NS_OK;
}
NS_IMETHODIMP
nsCharsetConverterManager::GetCharsetTitle(const char* aCharset,
nsAString& aResult) {
NS_ENSURE_ARG_POINTER(aCharset);
if (!sTitleBundle) {
nsresult rv =
LoadBundle("chrome://messenger/locale/charsetTitles.properties",
getter_AddRefs(sTitleBundle));
NS_ENSURE_SUCCESS(rv, rv);
}
return GetBundleValue(sTitleBundle, aCharset, u".title"_ns, aResult);
}
NS_IMETHODIMP
nsCharsetConverterManager::GetCharsetData(const char* aCharset,
const char16_t* aProp,
nsAString& aResult) {
return GetCharsetDataImpl(aCharset, aProp, aResult);
}
NS_IMETHODIMP
nsCharsetConverterManager::GetCharsetLangGroup(const char* aCharset,
nsACString& aResult) {
// resolve the charset first
nsAutoCString charset;
nsresult rv = GetCharsetAlias(aCharset, charset);
NS_ENSURE_SUCCESS(rv, rv);
// fully qualify to possibly avoid vtable call
return nsCharsetConverterManager::GetCharsetLangGroupRaw(charset.get(),
aResult);
}
NS_IMETHODIMP
nsCharsetConverterManager::GetCharsetLangGroupRaw(const char* aCharset,
nsACString& aResult) {
nsAutoString langGroup;
// fully qualify to possibly avoid vtable call
nsresult rv = nsCharsetConverterManager::GetCharsetData(
aCharset, u".LangGroup", langGroup);
if (NS_SUCCEEDED(rv)) {
ToLowerCase(langGroup); // use lowercase for all language groups
aResult = NS_ConvertUTF16toUTF8(langGroup);
}
return rv;
}
NS_IMETHODIMP
nsCharsetConverterManager::Utf7ToUnicode(const nsACString& aSrc,
nsAString& aDest) {
return CopyUTF7toUTF16(aSrc, aDest);
}
NS_IMETHODIMP
nsCharsetConverterManager::Mutf7ToUnicode(const nsACString& aSrc,
nsAString& aDest) {
return CopyMUTF7toUTF16(aSrc, aDest);
}
NS_IMETHODIMP
nsCharsetConverterManager::UnicodeToMutf7(const nsAString& aSrc,
nsACString& aDest) {
return CopyUTF16toMUTF7(aSrc, aDest);
}
|
