Backport stickerevents

src/stickerevent.h

@@ -0,0 +1,38 @@
+// SDPX-FileCopyrightText: 2020 Carl Schwan <carlschwan@kde.org>
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+#pragma once
+
+#include "events/roomevent.h"
+#include "events/eventcontent.h"
+
+namespace Quotient {
+
+/// Sticker messages are specialised image messages that are displayed without
+/// controls (e.g. no "download" link, or light-box view on click, as would be
+/// displayed for for m.image events).
+class StickerEvent : public RoomEvent
+{
+public:
+    DEFINE_EVENT_TYPEID("m.sticker", StickerEvent)
+
+    explicit StickerEvent(const QJsonObject &obj);
+
+    /// \brief A textual representation or associated description of the
+    /// sticker image.
+    ///
+    /// This could be the alt text of the original image, or a message to
+    /// accompany and further describe the sticker.
+    QString body() const;
+
+    /// \brief Metadata about the image referred to in url including a
+    /// thumbnail representation.
+    const EventContent::ImageContent &image() const;
+
+    /// \brief The URL to the sticker image. This must be a valid mxc:// URI.
+    QUrl url() const;
+private:
+    EventContent::ImageContent m_imageContent;
+};
+REGISTER_EVENT_TYPE(StickerEvent)
+} // namespace Quotient