From b89d5c43746ed672d98bf350db2a9e1b0878e2d0 Mon Sep 17 00:00:00 2001
From: Kitsune Ral <Kitsune-Ral@users.sf.net>
Date: Sat, 18 May 2019 13:52:54 +0900
Subject: Support for receiving m.reaction events
* struct EventRelation; class ReactionEvent; Room::relatedEvents()
* Reaction events are processed in both history and sync batches
* Redacting a reaction removes it from the list of related events
* QMCTest::sendReaction()
---
lib/events/reactionevent.cpp | 44 +++++++++++++++++++++++++
lib/events/reactionevent.h | 78 ++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 122 insertions(+)
create mode 100644 lib/events/reactionevent.cpp
create mode 100644 lib/events/reactionevent.h
(limited to 'lib/events')
diff --git a/lib/events/reactionevent.cpp b/lib/events/reactionevent.cpp
new file mode 100644
index 00000000..0081edc2
--- /dev/null
+++ b/lib/events/reactionevent.cpp
@@ -0,0 +1,44 @@
+/******************************************************************************
+ * Copyright (C) 2019 Kitsune Ral <kitsune-ral@users.sf.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "reactionevent.h"
+
+using namespace QMatrixClient;
+
+void QMatrixClient::JsonObjectConverter<EventRelation>::dumpTo(
+ QJsonObject& jo, const EventRelation& pod)
+{
+ if (pod.type.isEmpty()) {
+ qCWarning(MAIN) << "Empty relation type; won't dump to JSON";
+ return;
+ }
+ jo.insert(QStringLiteral("rel_type"), pod.type);
+ jo.insert(EventIdKey, pod.eventId);
+ if (pod.type == EventRelation::Annotation())
+ jo.insert(QStringLiteral("key"), pod.key);
+}
+
+void QMatrixClient::JsonObjectConverter<EventRelation>::fillFrom(
+ const QJsonObject& jo, EventRelation& pod)
+{
+ // The experimental logic for generic relationships (MSC1849)
+ fromJson(jo["rel_type"_ls], pod.type);
+ fromJson(jo[EventIdKeyL], pod.eventId);
+ if (pod.type == EventRelation::Annotation())
+ fromJson(jo["key"_ls], pod.key);
+}
diff --git a/lib/events/reactionevent.h b/lib/events/reactionevent.h
new file mode 100644
index 00000000..9a6adbbd
--- /dev/null
+++ b/lib/events/reactionevent.h
@@ -0,0 +1,78 @@
+/******************************************************************************
+ * Copyright (C) 2019 Kitsune Ral <kitsune-ral@users.sf.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#pragma once
+
+#include "roomevent.h"
+
+namespace QMatrixClient {
+
+struct EventRelation
+{
+ using reltypeid_t = const char*;
+ static constexpr reltypeid_t Reply() { return "m.in_reply_to"; }
+ static constexpr reltypeid_t Annotation() { return "m.annotation"; }
+ static constexpr reltypeid_t Replacement() { return "m.replace"; }
+
+ QString type;
+ QString eventId;
+ QString key = {}; // Only used for m.annotation for now
+
+ static EventRelation replyTo(QString eventId)
+ {
+ return { Reply(), std::move(eventId) };
+ }
+ static EventRelation annotate(QString eventId, QString key)
+ {
+ return { Annotation(), std::move(eventId), std::move(key) };
+ }
+ static EventRelation replace(QString eventId)
+ {
+ return { Replacement(), std::move(eventId) };
+ }
+};
+template <>
+struct JsonObjectConverter<EventRelation>
+{
+ static void dumpTo(QJsonObject& jo, const EventRelation& pod);
+ static void fillFrom(const QJsonObject& jo, EventRelation& pod);
+};
+
+class ReactionEvent : public RoomEvent
+{
+public:
+ DEFINE_EVENT_TYPEID("m.reaction", ReactionEvent)
+
+ explicit ReactionEvent(const EventRelation& value)
+ : RoomEvent(typeId(), matrixTypeId(),
+ { { QStringLiteral("m.relates_to"), toJson(value) } })
+ {}
+ explicit ReactionEvent(const QJsonObject& obj)
+ : RoomEvent(typeId(), obj)
+ {}
+ EventRelation relation() const
+ {
+ return content<EventRelation>(QStringLiteral("m.relates_to"));
+ }
+
+private:
+ EventRelation _relation;
+};
+REGISTER_EVENT_TYPE(ReactionEvent)
+
+} // namespace QMatrixClient
--
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