Implement XEP-0444: Message Reactions (#492)

https://xmpp.org/extensions/xep-0444.html

1 files changed, 42 insertions, 0 deletions

diff --git a/src/base/QXmppMessage.cpp b/src/base/QXmppMessage.cpp
index 7998598c..c0923d22 100644
--- a/src/base/QXmppMessage.cpp
+++ b/src/base/QXmppMessage.cpp
@@ -11,6 +11,7 @@
 #include "QXmppConstants_p.h"
 #include "QXmppFileShare.h"
 #include "QXmppGlobal_p.h"
+#include "QXmppMessageReaction.h"
 #include "QXmppMixInvitation.h"
 #ifdef BUILD_OMEMO
 #include "QXmppOmemoElement_p.h"
@@ -154,6 +155,9 @@ public:
     // XEP-0434: Trust Messages (TM)
     std::optional<QXmppTrustMessageElement> trustMessageElement;
 
+    // XEP-0444: Message Reactions
+    std::optional<QXmppMessageReaction> reaction;
+
     // XEP-0448: Encryption for stateless file sharing
     QVector<QXmppFileShare> sharedFiles;
 };
@@ -1239,6 +1243,32 @@ void QXmppMessage::setTrustMessageElement(const std::optional<QXmppTrustMessageE
 }
 
 ///
+/// Returns a reaction to a message as defined by \xep{0444, Message Reactions}.
+///
+/// \since QXmpp 1.5
+///
+std::optional<QXmppMessageReaction> QXmppMessage::reaction() const
+{
+    return d->reaction;
+}
+
+///
+/// Sets a reaction to a message as defined by \xep{0444, Message Reactions}.
+///
+/// The corresponding hint must be set manually:
+/// \code
+/// QXmppMessage message;
+/// message.addHint(QXmppMessage::Store);
+/// \endcode
+///
+/// \since QXmpp 1.5
+///
+void QXmppMessage::setReaction(const std::optional<QXmppMessageReaction> &reaction)
+{
+    d->reaction = reaction;
+}
+
+///
 /// Returns the via \xep{0447, Stateless file sharing} shared files attached to this message.
 ///
 /// \since QXmpp 1.5
@@ -1544,6 +1574,13 @@ bool QXmppMessage::parseExtension(const QDomElement &element, QXmpp::SceMode sce
             d->trustMessageElement = trustMessageElement;
             return true;
         }
+        // XEP-0444: Message Reactions
+        if (QXmppMessageReaction::isMessageReaction(element)) {
+            QXmppMessageReaction reaction;
+            reaction.parse(element);
+            d->reaction = std::move(reaction);
+            return true;
+        }
         // XEP-0448: Stateless file sharing
         if (checkElement(element, QStringLiteral("file-sharing"), ns_sfs)) {
             QXmppFileShare share;
@@ -1800,6 +1837,11 @@ void QXmppMessage::serializeExtensions(QXmlStreamWriter *writer, QXmpp::SceMode
             d->trustMessageElement->toXml(writer);
         }
 
+        // XEP-0444: Message Reactions
+        if (d->reaction) {
+            d->reaction->toXml(writer);
+        }
+
         // XEP-0448: Stateless file sharing
         for (const auto &fileShare : d->sharedFiles) {
             fileShare.toXml(writer);