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
196
197
198
199
200
|
/**
* @file llemojidictionary.cpp
* @brief Implementation of LLEmojiDictionary
*
* $LicenseInfo:firstyear=2014&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2014, Linden Research, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
#include "linden_common.h"
#include "lldir.h"
#include "llemojidictionary.h"
#include "llsdserialize.h"
#include <boost/algorithm/string.hpp>
#include <boost/range/adaptor/filtered.hpp>
#include <boost/range/algorithm/transform.hpp>
// ============================================================================
// Constants
//
constexpr char SKINNED_EMOJI_FILENAME[] = "emoji_characters.xml";
// ============================================================================
// Helper functions
//
template<class T>
std::list<T> llsd_array_to_list(const LLSD& sd, std::function<void(T&)> mutator = {});
template<>
std::list<std::string> llsd_array_to_list(const LLSD& sd, std::function<void(std::string&)> mutator)
{
std::list<std::string> result;
for (LLSD::array_const_iterator it = sd.beginArray(), end = sd.endArray(); it != end; ++it)
{
const LLSD& entry = *it;
if (!entry.isString())
continue;
result.push_back(entry.asStringRef());
if (mutator)
{
mutator(result.back());
}
}
return result;
}
LLEmojiDescriptor::LLEmojiDescriptor(const LLSD& descriptor_sd)
{
Name = descriptor_sd["Name"].asStringRef();
const LLWString emoji_string = utf8str_to_wstring(descriptor_sd["Character"].asString());
Character = (1 == emoji_string.size()) ? emoji_string[0] : L'\0'; // We don't currently support character composition
auto toLower = [](std::string& str) { LLStringUtil::toLower(str); };
ShortCodes = llsd_array_to_list<std::string>(descriptor_sd["ShortCodes"], toLower);
Categories = llsd_array_to_list<std::string>(descriptor_sd["Categories"], toLower);
if (Name.empty())
{
Name = ShortCodes.front();
}
}
bool LLEmojiDescriptor::isValid() const
{
return
Character &&
!ShortCodes.empty() &&
!Categories.empty();
}
struct emoji_filter_base
{
emoji_filter_base(const std::string& needle)
{
// Search without the colon (if present) so the user can type ':food' and see all emojis in the 'Food' category
mNeedle = (boost::starts_with(needle, ":")) ? needle.substr(1) : needle;
LLStringUtil::toLower(mNeedle);
}
protected:
std::string mNeedle;
};
struct emoji_filter_shortcode_or_category_contains : public emoji_filter_base
{
emoji_filter_shortcode_or_category_contains(const std::string& needle) : emoji_filter_base(needle) {}
bool operator()(const LLEmojiDescriptor& descr) const
{
for (const auto& short_code : descr.ShortCodes)
{
if (boost::icontains(short_code, mNeedle))
return true;
}
for (const auto& category : descr.Categories)
{
if (boost::icontains(category, mNeedle))
return true;
}
return false;
}
};
// ============================================================================
// LLEmojiDictionary class
//
LLEmojiDictionary::LLEmojiDictionary()
{
}
// static
void LLEmojiDictionary::initClass()
{
LLEmojiDictionary* pThis = &LLEmojiDictionary::initParamSingleton();
LLSD data;
const std::string filename = gDirUtilp->findSkinnedFilenames(LLDir::XUI, SKINNED_EMOJI_FILENAME, LLDir::CURRENT_SKIN).front();
llifstream file(filename.c_str());
if (file.is_open())
{
LL_DEBUGS() << "Loading emoji characters file at " << filename << LL_ENDL;
LLSDSerialize::fromXML(data, file);
}
if (data.isUndefined())
{
LL_WARNS() << "Emoji file characters missing or ill-formed" << LL_ENDL;
return;
}
for (LLSD::array_const_iterator descriptor_it = data.beginArray(), descriptor_end = data.endArray(); descriptor_it != descriptor_end; ++descriptor_it)
{
LLEmojiDescriptor descriptor(*descriptor_it);
if (!descriptor.isValid())
{
LL_WARNS() << "Skipping invalid emoji descriptor " << descriptor.Character << LL_ENDL;
continue;
}
pThis->addEmoji(std::move(descriptor));
}
}
LLWString LLEmojiDictionary::findMatchingEmojis(const std::string& needle) const
{
LLWString result;
boost::transform(mEmojis | boost::adaptors::filtered(emoji_filter_shortcode_or_category_contains(needle)),
std::back_inserter(result), [](const auto& descr) { return descr.Character; });
return result;
}
const LLEmojiDescriptor* LLEmojiDictionary::getDescriptorFromShortCode(const std::string& short_code) const
{
const auto it = mShortCode2Descr.find(short_code);
return (mShortCode2Descr.end() != it) ? it->second : nullptr;
}
std::string LLEmojiDictionary::getNameFromEmoji(llwchar ch) const
{
const auto it = mEmoji2Descr.find(ch);
return (mEmoji2Descr.end() != it) ? it->second->Name : LLStringUtil::null;
}
void LLEmojiDictionary::addEmoji(LLEmojiDescriptor&& descr)
{
mEmojis.push_back(descr);
mEmoji2Descr.insert(std::make_pair(descr.Character, &mEmojis.back()));
for (const std::string& shortCode : descr.ShortCodes)
{
mShortCode2Descr.insert(std::make_pair(shortCode, &mEmojis.back()));
}
}
// ============================================================================
|
