45143c40c9
Fixed dependent messages update when message was edited. Fixed entities parsing in Text when they follow one after another.
241 lines
8.3 KiB
C
241 lines
8.3 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) 2014-2016 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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void emojiInit();
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EmojiPtr emojiGet(uint32 code);
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EmojiPtr emojiGet(uint32 code, uint32 code2);
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EmojiPtr emojiGet(EmojiPtr emoji, uint32 color);
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EmojiPtr emojiGet(const QChar *from, const QChar *end);
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QString emojiGetSequence(int index);
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inline QString emojiString(EmojiPtr emoji) {
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if ((emoji->code & 0xFFFF0000U) == 0xFFFF0000U) { // sequence
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return emojiGetSequence(emoji->code & 0xFFFFU);
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}
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QString result;
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result.reserve(emoji->len + (emoji->postfix ? 1 : 0));
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if (!(emoji->code >> 16)) {
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result.append(QChar(emoji->code & 0xFFFF));
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} else {
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result.append(QChar((emoji->code >> 16) & 0xFFFF));
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result.append(QChar(emoji->code & 0xFFFF));
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if (emoji->code2) {
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result.append(QChar((emoji->code2 >> 16) & 0xFFFF));
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result.append(QChar(emoji->code2 & 0xFFFF));
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}
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}
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if (emoji->color && ((emoji->color & 0xFFFF0000U) != 0xFFFF0000U)) {
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result.append(QChar((emoji->color >> 16) & 0xFFFF));
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result.append(QChar(emoji->color & 0xFFFF));
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}
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if (emoji->postfix) result.append(QChar(emoji->postfix));
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return result;
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}
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inline uint64 emojiKey(EmojiPtr emoji) {
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uint64 key = emoji->code;
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if (emoji->code2) {
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key = (key << 32) | uint64(emoji->code2);
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} else if (emoji->color && ((emoji->color & 0xFFFF0000U) != 0xFFFF0000U)) {
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key = (key << 32) | uint64(emoji->color);
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}
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return key;
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}
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inline EmojiPtr emojiFromKey(uint64 key) {
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uint32 code = uint32(key >> 32), code2 = uint32(key & 0xFFFFFFFFLLU);
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if (!code && code2) {
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code = code2;
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code2 = 0;
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}
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EmojiPtr emoji = emojiGet(code);
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if (emoji == TwoSymbolEmoji) {
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return emojiGet(code, code2);
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} else if (emoji && emoji->color && code2) {
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return emojiGet(emoji, code2);
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}
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return emoji;
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}
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inline EmojiPtr emojiFromUrl(const QString &url) {
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return emojiFromKey(url.midRef(10).toULongLong(0, 16)); // skip emoji://e.
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}
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inline EmojiPtr emojiFromText(const QChar *ch, const QChar *end, int *outLength = nullptr) {
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EmojiPtr emoji = nullptr;
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if (ch + 1 < end && ((ch->isHighSurrogate() && (ch + 1)->isLowSurrogate()) || (((ch->unicode() >= 0x30 && ch->unicode() < 0x3A) || ch->unicode() == 0x23 || ch->unicode() == 0x2A) && (ch + 1)->unicode() == 0x20E3))) {
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uint32 code = (ch->unicode() << 16) | (ch + 1)->unicode();
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emoji = emojiGet(code);
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if (emoji) {
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if (emoji == TwoSymbolEmoji) { // check two symbol
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if (ch + 3 >= end) {
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emoji = 0;
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} else {
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uint32 code2 = ((uint32((ch + 2)->unicode()) << 16) | uint32((ch + 3)->unicode()));
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emoji = emojiGet(code, code2);
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}
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} else {
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if (ch + 2 < end && (ch + 2)->unicode() == 0x200D) { // check sequence
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EmojiPtr seq = emojiGet(ch, end);
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if (seq) {
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emoji = seq;
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}
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}
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}
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}
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} else if (ch + 2 < end && ((ch->unicode() >= 0x30 && ch->unicode() < 0x3A) || ch->unicode() == 0x23 || ch->unicode() == 0x2A) && (ch + 1)->unicode() == 0xFE0F && (ch + 2)->unicode() == 0x20E3) {
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uint32 code = (ch->unicode() << 16) | (ch + 2)->unicode();
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emoji = emojiGet(code);
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if (outLength) *outLength = emoji->len + 1;
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return emoji;
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} else if (ch < end) {
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emoji = emojiGet(ch->unicode());
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t_assert(emoji != TwoSymbolEmoji);
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}
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if (emoji) {
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int32 len = emoji->len + ((ch + emoji->len < end && (ch + emoji->len)->unicode() == 0xFE0F) ? 1 : 0);
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if (emoji->color && (ch + len + 1 < end && (ch + len)->isHighSurrogate() && (ch + len + 1)->isLowSurrogate())) { // color
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uint32 color = ((uint32((ch + len)->unicode()) << 16) | uint32((ch + len + 1)->unicode()));
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EmojiPtr col = emojiGet(emoji, color);
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if (col && col != emoji) {
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len += col->len - emoji->len;
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emoji = col;
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if (ch + len < end && (ch + len)->unicode() == 0xFE0F) {
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++len;
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}
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}
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}
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if (outLength) *outLength = len;
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}
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return emoji;
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}
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inline EmojiPtr emojiFromText(const QString &text, int32 *plen = 0) {
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return text.isEmpty() ? EmojiPtr(0) : emojiFromText(text.constBegin(), text.constEnd(), plen);
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}
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inline EmojiPtr emojiGetNoColor(EmojiPtr emoji) {
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if (emoji && emoji->color && (emoji->color & 0xFFFF0000U) != 0xFFFF0000U) {
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EmojiPtr result = emojiGet(emoji->code);
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return (result == TwoSymbolEmoji) ? emojiGet(emoji->code, emoji->code2) : result;
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}
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return emoji;
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}
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extern int EmojiSizes[5], EIndex, ESize;
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extern const char *EmojiNames[5], *EName;
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void emojiFind(const QChar *ch, const QChar *e, const QChar *&newEmojiEnd, uint32 &emojiCode);
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inline bool emojiEdge(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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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 replaceEmojis(const QString &text, EntitiesInText *inOutEntities) {
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QString result;
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auto currentEntity = inOutEntities->begin(), entitiesEnd = inOutEntities->end();
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const QChar *emojiStart = text.constData(), *emojiEnd = emojiStart, *e = text.constData() + text.size();
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bool canFindEmoji = true;
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for (const QChar *ch = emojiEnd; ch != e;) {
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uint32 emojiCode = 0;
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const QChar *newEmojiEnd = 0;
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if (canFindEmoji) {
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emojiFind(ch, e, newEmojiEnd, emojiCode);
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}
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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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EmojiPtr emoji = emojiCode ? emojiGet(emojiCode) : 0;
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if (emoji && emoji != TwoSymbolEmoji &&
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(ch == emojiStart || !ch->isLetterOrNumber() || !(ch - 1)->isLetterOrNumber()) &&
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(newEmojiEnd == e || !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->color) {
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EmojiColorVariants::const_iterator it = cEmojiVariants().constFind(emoji->code);
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if (it != cEmojiVariants().cend()) {
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EmojiPtr replace = emojiFromKey(it.value());
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if (replace) {
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if (replace != TwoSymbolEmoji && replace->code == emoji->code && replace->code2 == emoji->code2) {
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emoji = replace;
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}
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}
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}
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}
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result.append(emojiString(emoji));
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ch = emojiEnd = newEmojiEnd;
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canFindEmoji = true;
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} else {
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if (emojiEdge(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, e, inOutEntities);
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return result;
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}
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int emojiPackCount(DBIEmojiTab tab);
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EmojiPack emojiPack(DBIEmojiTab tab);
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