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Diffstat (limited to 'indra/llui/llemojidictionary.cpp')
| -rw-r--r-- | indra/llui/llemojidictionary.cpp | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/indra/llui/llemojidictionary.cpp b/indra/llui/llemojidictionary.cpp new file mode 100644 index 0000000000..b70a9b2e7a --- /dev/null +++ b/indra/llui/llemojidictionary.cpp @@ -0,0 +1,200 @@ +/** +* @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())); + } +} + +// ============================================================================ |