From 442b68558e46d654bb22219ff588f33290b004ff Mon Sep 17 00:00:00 2001
From: Black Hat <bhat@encom.eu.org>
Date: Fri, 26 Jul 2019 17:48:17 +0800
Subject: [PATCH] Add/remove reactions.

---
 .../Component/Timeline/MessageDelegate.qml    |  2 ++
 .../Component/Timeline/ReactionDelegate.qml   |  6 +++-
 src/spectralroom.cpp                          | 36 +++++++++++++++++--
 src/spectralroom.h                            |  1 +
 4 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/imports/Spectral/Component/Timeline/MessageDelegate.qml b/imports/Spectral/Component/Timeline/MessageDelegate.qml
index 6276f2c38..18c39dd8e 100644
--- a/imports/Spectral/Component/Timeline/MessageDelegate.qml
+++ b/imports/Spectral/Component/Timeline/MessageDelegate.qml
@@ -222,6 +222,8 @@ ColumnLayout {
                 }
 
                 ReactionDelegate {
+                    Layout.fillWidth: true
+
                     Layout.topMargin: 0
                     Layout.bottomMargin: 8
                     Layout.leftMargin: 16
diff --git a/imports/Spectral/Component/Timeline/ReactionDelegate.qml b/imports/Spectral/Component/Timeline/ReactionDelegate.qml
index e536003ba..74509b005 100644
--- a/imports/Spectral/Component/Timeline/ReactionDelegate.qml
+++ b/imports/Spectral/Component/Timeline/ReactionDelegate.qml
@@ -3,9 +3,11 @@ import QtQuick.Controls 2.12
 import QtQuick.Layouts 1.12
 import Spectral.Setting 0.1
 
-RowLayout {
+Flow {
     visible: reaction || false
 
+    spacing: 8
+
     Repeater {
         model: reaction
 
@@ -40,6 +42,8 @@ RowLayout {
 
                         return text
                     }
+
+                    onClicked: currentRoom.toggleReaction(eventId, modelData.reaction)
                 }
             }
 
diff --git a/src/spectralroom.cpp b/src/spectralroom.cpp
index 6b6b9dfcd..389d3d7b6 100644
--- a/src/spectralroom.cpp
+++ b/src/spectralroom.cpp
@@ -10,9 +10,9 @@
 #include "csapi/rooms.h"
 #include "csapi/typing.h"
 #include "events/accountdataevents.h"
+#include "events/reactionevent.h"
 #include "events/roommessageevent.h"
 #include "events/typingevent.h"
-#include "events/reactionevent.h"
 #include "jobs/downloadfilejob.h"
 
 #include <QFileDialog>
@@ -306,7 +306,7 @@ QString SpectralRoom::markdownToHTML(const QString& markdown) {
 
   std::string html(tmp_buf);
 
-  free((char *)tmp_buf);
+  free((char*)tmp_buf);
 
   auto result = QString::fromStdString(html).trimmed();
 
@@ -420,3 +420,35 @@ void SpectralRoom::postHtmlMessage(const QString& text,
 
   Room::postHtmlMessage(text, html, type);
 }
+
+void SpectralRoom::toggleReaction(const QString& eventId,
+                                  const QString& reaction) {
+  const auto eventIt = findInTimeline(eventId);
+  if (eventIt == timelineEdge())
+    return;
+
+  const auto& evt = **eventIt;
+
+  QString redactEventId = "";
+
+  const auto& annotations = relatedEvents(evt, EventRelation::Annotation());
+  if (!annotations.isEmpty()) {
+    for (const auto& a : annotations) {
+      if (auto e = eventCast<const ReactionEvent>(a)) {
+        if (e->relation().key != reaction)
+          continue;
+
+        if (e->senderId() == localUser()->id()) {
+          redactEventId = e->id();
+          break;
+        }
+      }
+    }
+  }
+
+  if (!redactEventId.isEmpty()) {
+    redactEvent(redactEventId);
+  } else {
+      postEvent(new ReactionEvent(EventRelation::annotate(eventId, reaction)));
+  }
+}
diff --git a/src/spectralroom.h b/src/spectralroom.h
index e4885b8f5..9c84368fc 100644
--- a/src/spectralroom.h
+++ b/src/spectralroom.h
@@ -315,6 +315,7 @@ class SpectralRoom : public Room {
   void changeAvatar(QUrl localFile);
   void addLocalAlias(const QString& alias);
   void removeLocalAlias(const QString& alias);
+  void toggleReaction(const QString& eventId, const QString& reaction);
 };
 
 #endif  // SpectralRoom_H