tdesktop/Telegram/SourceFiles/ui/emoji_config.h

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/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It 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 General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#pragma once
#include "ui/text/text.h"
namespace Ui {
namespace Emoji {
namespace internal {
EmojiPtr ByIndex(int index);
EmojiPtr Find(const QChar *ch, const QChar *end, int *outLength = nullptr);
inline bool IsReplaceEdge(const QChar *ch) {
return true;
// switch (ch->unicode()) {
// case '.': case ',': case ':': case ';': case '!': case '?': case '#': case '@':
// case '(': case ')': case '[': case ']': case '{': case '}': case '<': case '>':
// case '+': case '=': case '-': case '_': case '*': case '/': case '\\': case '^': case '$':
// case '"': case '\'':
// case 8212: case 171: case 187: // --, <<, >>
// return true;
// }
// return false;
}
EmojiPtr FindReplace(const QChar *ch, const QChar *end, int *outLength = nullptr);
} // namespace internal
void Init();
constexpr auto kPostfix = static_cast<ushort>(0xFE0F);
class One {
public:
One(One &&other) = default;
QString id() const {
return _id;
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}
QString text() const {
return hasPostfix() ? (_id + QChar(kPostfix)) : _id;
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}
bool colored() const {
return (_original != nullptr);
}
EmojiPtr original() const {
return _original ? _original : this;
}
QString nonColoredId() const {
return original()->id();
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}
bool hasPostfix() const {
return _hasPostfix;
}
bool hasVariants() const {
return _colorizable || colored();
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}
int variantsCount() const;
int variantIndex(EmojiPtr variant) const;
EmojiPtr variant(int index) const;
int index() const;
QString toUrl() const {
return qsl("emoji://e.") + QString::number(index());
}
int x() const {
return _x;
}
int y() const {
return _y;
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}
private:
One(const QString &id, uint16 x, uint16 y, bool hasPostfix, bool colorizable, EmojiPtr original)
: _id(id)
, _x(x)
, _y(y)
, _hasPostfix(hasPostfix)
, _colorizable(colorizable)
, _original(original) {
t_assert(!_colorizable || !colored());
}
const QString _id;
const uint16 _x = 0;
const uint16 _y = 0;
const bool _hasPostfix = false;
const bool _colorizable = false;
const EmojiPtr _original = nullptr;
friend void Init();
};
inline EmojiPtr FromUrl(const QString &url) {
auto start = qstr("emoji://e.");
if (url.startsWith(start)) {
return internal::ByIndex(url.midRef(start.size()).toInt()); // skip emoji://e.
}
return nullptr;
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}
inline EmojiPtr Find(const QChar *start, const QChar *end, int *outLength = nullptr) {
return internal::Find(start, end, outLength);
}
inline EmojiPtr Find(const QString &text, int *outLength = nullptr) {
return Find(text.constBegin(), text.constEnd(), outLength);
}
inline QString IdFromOldKey(uint64 oldKey) {
auto code = uint32(oldKey >> 32);
auto code2 = uint32(oldKey & 0xFFFFFFFFLLU);
if (!code && code2) {
code = base::take(code2);
}
if ((code & 0xFFFF0000U) != 0xFFFF0000U) { // code and code2 contain the whole id
auto result = QString();
result.reserve(4);
auto addCode = [&result](uint32 code) {
if (auto high = (code >> 16)) {
result.append(QChar(static_cast<ushort>(high & 0xFFFFU)));
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}
result.append(QChar(static_cast<ushort>(code & 0xFFFFU)));
};
addCode(code);
if (code2) addCode(code2);
return result;
}
// old sequence
auto sequenceIndex = int(code & 0xFFFFU);
switch (sequenceIndex) {
case 0: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa7");
case 1: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa7\xe2\x80\x8d\xf0\x9f\x91\xa6");
case 2: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa6\xe2\x80\x8d\xf0\x9f\x91\xa6");
case 3: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa7\xe2\x80\x8d\xf0\x9f\x91\xa7");
case 4: return QString::fromUtf8("\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa6");
case 5: return QString::fromUtf8("\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa7");
case 6: return QString::fromUtf8("\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa7\xe2\x80\x8d\xf0\x9f\x91\xa6");
case 7: return QString::fromUtf8("\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa6\xe2\x80\x8d\xf0\x9f\x91\xa6");
case 8: return QString::fromUtf8("\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa9\xe2\x80\x8d\xf0\x9f\x91\xa7\xe2\x80\x8d\xf0\x9f\x91\xa7");
case 9: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa6");
case 10: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa7");
case 11: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa7\xe2\x80\x8d\xf0\x9f\x91\xa6");
case 12: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa6\xe2\x80\x8d\xf0\x9f\x91\xa6");
case 13: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa8\xe2\x80\x8d\xf0\x9f\x91\xa7\xe2\x80\x8d\xf0\x9f\x91\xa7");
case 14: return QString::fromUtf8("\xf0\x9f\x91\xa9\xe2\x80\x8d\xe2\x9d\xa4\xef\xb8\x8f\xe2\x80\x8d\xf0\x9f\x91\xa9");
case 15: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xe2\x9d\xa4\xef\xb8\x8f\xe2\x80\x8d\xf0\x9f\x91\xa8");
case 16: return QString::fromUtf8("\xf0\x9f\x91\xa9\xe2\x80\x8d\xe2\x9d\xa4\xef\xb8\x8f\xe2\x80\x8d\xf0\x9f\x92\x8b\xe2\x80\x8d\xf0\x9f\x91\xa9");
case 17: return QString::fromUtf8("\xf0\x9f\x91\xa8\xe2\x80\x8d\xe2\x9d\xa4\xef\xb8\x8f\xe2\x80\x8d\xf0\x9f\x92\x8b\xe2\x80\x8d\xf0\x9f\x91\xa8");
case 18: return QString::fromUtf8("\xf0\x9f\x91\x81\xe2\x80\x8d\xf0\x9f\x97\xa8");
}
return QString();
}
inline EmojiPtr FromOldKey(uint64 oldKey) {
return Find(IdFromOldKey(oldKey));
}
inline int ColorIndexFromCode(uint32 code) {
switch (code) {
case 0xD83CDFFB: return 1;
case 0xD83CDFFC: return 2;
case 0xD83CDFFD: return 3;
case 0xD83CDFFE: return 4;
case 0xD83CDFFF: return 5;
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}
return 0;
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}
inline int ColorIndexFromOldKey(uint64 oldKey) {
return ColorIndexFromCode(uint32(oldKey & 0xFFFFFFFFLLU));
}
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int Index();
inline int Size(int index = Index()) {
int sizes[] = { 18, 22, 27, 36, 45 };
return sizes[index];
}
inline QString Filename(int index = Index()) {
const char *EmojiNames[] = {
":/gui/art/emoji.webp",
":/gui/art/emoji_125x.webp",
":/gui/art/emoji_150x.webp",
":/gui/art/emoji_200x.webp",
":/gui/art/emoji_250x.webp",
};
return QString::fromLatin1(EmojiNames[index]);
}
int GetPackCount(DBIEmojiTab tab);
EmojiPack GetPack(DBIEmojiTab tab);
inline void appendPartToResult(QString &result, const QChar *start, const QChar *from, const QChar *to, EntitiesInText *inOutEntities) {
if (to > from) {
for (auto &entity : *inOutEntities) {
if (entity.offset() >= to - start) break;
if (entity.offset() + entity.length() < from - start) continue;
if (entity.offset() >= from - start) {
entity.extendToLeft(from - start - result.size());
}
if (entity.offset() + entity.length() <= to - start) {
entity.shrinkFromRight(from - start - result.size());
}
}
result.append(from, to - from);
}
}
inline QString ReplaceInText(const QString &text, EntitiesInText *inOutEntities) {
auto result = QString();
auto currentEntity = inOutEntities->begin();
auto entitiesEnd = inOutEntities->end();
auto emojiStart = text.constData();
auto emojiEnd = emojiStart;
auto end = emojiStart + text.size();
auto canFindEmoji = true;
for (auto ch = emojiEnd; ch != end;) {
auto emojiLength = 0;
auto emoji = canFindEmoji ? internal::FindReplace(ch, end, &emojiLength) : nullptr;
auto newEmojiEnd = ch + emojiLength;
while (currentEntity != entitiesEnd && ch >= emojiStart + currentEntity->offset() + currentEntity->length()) {
++currentEntity;
}
if (emoji &&
(ch == emojiStart || !ch->isLetterOrNumber() || !(ch - 1)->isLetterOrNumber()) &&
(newEmojiEnd == end || !newEmojiEnd->isLetterOrNumber() || newEmojiEnd == emojiStart || !(newEmojiEnd - 1)->isLetterOrNumber()) &&
(currentEntity == entitiesEnd || (ch < emojiStart + currentEntity->offset() && newEmojiEnd <= emojiStart + currentEntity->offset()) || (ch >= emojiStart + currentEntity->offset() + currentEntity->length() && newEmojiEnd > emojiStart + currentEntity->offset() + currentEntity->length()))
) {
if (result.isEmpty()) result.reserve(text.size());
appendPartToResult(result, emojiStart, emojiEnd, ch, inOutEntities);
if (emoji->hasVariants()) {
auto it = cEmojiVariants().constFind(emoji->nonColoredId());
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if (it != cEmojiVariants().cend()) {
emoji = emoji->variant(it.value());
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}
}
result.append(emoji->text());
ch = emojiEnd = newEmojiEnd;
canFindEmoji = true;
} else {
if (internal::IsReplaceEdge(ch)) {
canFindEmoji = true;
} else {
canFindEmoji = false;
}
++ch;
}
}
if (result.isEmpty()) return text;
appendPartToResult(result, emojiStart, emojiEnd, end, inOutEntities);
return result;
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}
} // namespace Emoji
} // namespace Ui