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