init

Telegram/SourceFiles/data/data_user_names.cpp

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+/*
+This file is part of Telegram Desktop,
+the official desktop application for the Telegram messaging service.
+
+For license and copyright information please follow this link:
+https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
+*/
+#include "data/data_user_names.h"
+
+namespace Data {
+
+UsernamesInfo::UsernamesInfo() = default;
+
+void UsernamesInfo::setUsername(const QString &username) {
+	if (_usernames.empty()) {
+		if (username.isEmpty()) {
+			_indexEditableUsername = -1;
+		} else {
+			_usernames.push_back(username);
+			_indexEditableUsername = 0;
+		}
+	} else if ((_indexEditableUsername < 0)
+			|| (_indexEditableUsername >= _usernames.size())) {
+		if (username.isEmpty()) {
+			_indexEditableUsername = -1;
+		} else {
+			_usernames.push_back(username);
+			_indexEditableUsername = 0;
+		}
+	} else if (_usernames[_indexEditableUsername] != username) {
+		if (username.isEmpty()) {
+			_usernames.erase(begin(_usernames) + _indexEditableUsername);
+			_indexEditableUsername = -1;
+		} else {
+			_usernames[_indexEditableUsername] = username;
+		}
+	}
+}
+
+void UsernamesInfo::setUsernames(const Usernames &usernames) {
+	auto editableUsername = QString();
+	auto newUsernames = ranges::views::all(
+		usernames
+	) | ranges::views::filter([&](const Data::Username &username) {
+		if (username.editable) {
+			editableUsername = username.username;
+			return username.active;
+		}
+		return username.active;
+	}) | ranges::views::transform([](const Data::Username &username) {
+		return username.username;
+	}) | ranges::to_vector;
+
+	if (!ranges::equal(_usernames, newUsernames)) {
+		_usernames = std::move(newUsernames);
+	}
+	if (!editableUsername.isEmpty()) {
+		for (auto i = 0; i < _usernames.size(); i++) {
+			if (_usernames[i] == editableUsername) {
+				_indexEditableUsername = i;
+				break;
+			}
+		}
+	} else {
+		_indexEditableUsername = -1;
+	}
+}
+
+QString UsernamesInfo::username() const {
+	return _usernames.empty() ? QString() : _usernames.front();
+}
+
+QString UsernamesInfo::editableUsername() const {
+	return (_indexEditableUsername < 0)
+		? QString()
+		: _usernames[_indexEditableUsername];
+}
+
+const std::vector<QString> &UsernamesInfo::usernames() const {
+	return _usernames;
+}
+
+bool UsernamesInfo::isEditable(const QString &username) const {
+	return (_indexEditableUsername >= 0)
+		&& (_indexEditableUsername < _usernames.size())
+		&& (_usernames[_indexEditableUsername] == username);
+}
+
+} // namespace Data