QString HistoryItem::inDialogsText(DrawInDialog way) const {
auto getText = [this]() {
if (_media) {
return _media->chatListText();
} else if (!emptyText()) {
return TextUtilities::Clean(_text.originalText());
}
return QString();
};
const auto plainText = getText();
const auto sender = [&]() -> PeerData* {
if (isPost() || isEmpty() || (way == DrawInDialog::WithoutSender)) {
return nullptr;
} else if (!_history->peer->isUser() || out()) {
return author();
} else if (_history->peer->isSelf() && !Has<HistoryMessageForwarded>()) {
return senderOriginal();
}
return nullptr;
}();
if (sender) {
auto fromText = sender->isSelf() ? lang(lng_from_you) : sender->shortName();
auto fromWrapped = textcmdLink(1, lng_dialogs_text_from_wrapped(lt_from, TextUtilities::Clean(fromText)));
return lng_dialogs_text_with_from(lt_from_part, fromWrapped, lt_message, plainText);
}
return plainText;
}
bool Element::computeIsAttachToPrevious(not_null<Element*> previous) {
const auto item = data();
if (!Has<DateBadge>() && !Has<UnreadBar>()) {
const auto prev = previous->data();
const auto possible = !item->serviceMsg() && !prev->serviceMsg()
&& !item->isEmpty() && !prev->isEmpty()
&& (std::abs(prev->date() - item->date()) < kAttachMessageToPreviousSecondsDelta)
&& (_context == Context::Feed
|| (!item->isPost() && !prev->isPost()));
if (possible) {
if (item->history()->peer->isSelf()) {
return prev->senderOriginal() == item->senderOriginal()
&& (prev->Has<HistoryMessageForwarded>() == item->Has<HistoryMessageForwarded>());
} else {
return prev->from() == item->from();
}
}
}
return false;
}
not_null<PeerData*> HistoryMessage::displayFrom() const {
return history()->peer->isSelf()
? senderOriginal()
: author();
}