matrixion/include/AvatarProvider.h
2018-03-25 15:59:47 +03:00

61 lines
2 KiB
C++

/*
* nheko Copyright (C) 2017 Konstantinos Sideris <siderisk@auth.gr>
*
* This program 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.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <QImage>
#include <QSharedPointer>
#include <QUrl>
#include <functional>
class MatrixClient;
class TimelineItem;
//! Saved cache data per user.
struct AvatarData
{
//! The avatar image of the user.
QImage img;
//! The url that was used to download the avatar.
QUrl url;
};
class AvatarProvider : public QObject
{
Q_OBJECT
public:
static void init(QSharedPointer<MatrixClient> client);
//! The callback is called with the downloaded avatar for the given user
//! or the avatar is downloaded first and then saved for re-use.
static void resolve(const QString &userId,
QObject *receiver,
std::function<void(QImage)> callback);
//! Used to initialize the mapping user -> avatar url.
static void setAvatarUrl(const QString &userId, const QUrl &url);
//! Remove all saved data.
static void clear() { avatars_.clear(); };
private:
//! Update the cache with the downloaded avatar.
static void updateAvatar(const QString &uid, const QImage &img);
static QSharedPointer<MatrixClient> client_;
using UserID = QString;
static std::map<UserID, AvatarData> avatars_;
};