Add button to encrypt room

src/CMakeLists.txt

@@ -146,6 +146,7 @@ if(ANDROID)
         "zoom-out"
         "image-rotate-left-symbolic"
         "image-rotate-right-symbolic"
+        "channel-insecure-symbolic"
     )
 else()
     target_link_libraries(neochat PUBLIC Qt::Widgets KF5::KIOWidgets)

src/neochatroom.cpp

@@ -67,6 +67,7 @@ NeoChatRoom::NeoChatRoom(Connection *connection, QString roomId, JoinState joinS
     connect(this, &Room::displaynameChanged, this, &NeoChatRoom::displayNameChanged);
 
     connectSingleShot(this, &Room::baseStateLoaded, this, [this]() {
+        Q_EMIT canEncryptRoomChanged();
         if (this->joinState() != JoinState::Invite) {
             return;
         }
@@ -80,6 +81,9 @@ NeoChatRoom::NeoChatRoom(Connection *connection, QString roomId, JoinState joinS
         }
         NotificationsManager::instance().postInviteNotification(this, htmlSafeDisplayName(), htmlSafeMemberName(senderId), avatar_image);
     });
+    connect(this, &Room::changed, this, [this] {
+        Q_EMIT canEncryptRoomChanged();
+    });
 }
 
 void NeoChatRoom::uploadFile(const QUrl &url, const QString &body)
@@ -1165,3 +1169,13 @@ void NeoChatRoom::setSavedText(const QString &savedText)
 {
     m_savedText = savedText;
 }
+
+bool NeoChatRoom::canEncryptRoom() const
+{
+#ifdef QUOTIENT_07
+#ifdef Quotient_E2EE_ENABLED
+    return !usesEncryption() && canSendState("m.room.encryption");
+#endif
+#endif
+    return false;
+}

src/neochatroom.h

@@ -61,6 +61,7 @@ class NeoChatRoom : public Quotient::Room
     Q_PROPERTY(NeoChatUser *chatBoxEditUser READ chatBoxEditUser NOTIFY chatBoxEditIdChanged)
     Q_PROPERTY(QString chatBoxEditMessage READ chatBoxEditMessage NOTIFY chatBoxEditIdChanged)
     Q_PROPERTY(QString chatBoxAttachmentPath READ chatBoxAttachmentPath WRITE setChatBoxAttachmentPath NOTIFY chatBoxAttachmentPathChanged)
+    Q_PROPERTY(bool canEncryptRoom READ canEncryptRoom NOTIFY canEncryptRoomChanged)
 
 public:
     enum MessageType {
@@ -189,6 +190,8 @@ public:
     QString savedText() const;
     void setSavedText(const QString &savedText);
 
+    bool canEncryptRoom() const;
+
 #ifndef QUOTIENT_07
     Q_INVOKABLE QString htmlSafeMemberName(const QString &userId) const
     {
@@ -241,6 +244,7 @@ Q_SIGNALS:
     void chatBoxReplyIdChanged();
     void chatBoxEditIdChanged();
     void chatBoxAttachmentPathChanged();
+    void canEncryptRoomChanged();
 
 public Q_SLOTS:
     void uploadFile(const QUrl &url, const QString &body = QString());

src/qml/Panel/RoomDrawer.qml

@@ -126,6 +126,22 @@ Kirigami.OverlayDrawer {
                             text: favouriteButton.text
                         }
                     }
+                    ToolButton {
+                        id: encryptButton
+
+                        Layout.alignment: Qt.AlignRight
+                        icon.name: 'channel-insecure-symbolic'
+                        enabled: roomDrawer.room.canEncryptRoom
+                        visible: !roomDrawer.room.usesEncryption && Controller.encryptionSupported
+                        text: i18n("Enable encryption")
+                        display: AbstractButton.IconOnly
+
+                        onClicked: roomDrawer.room.activateEncryption()
+
+                        ToolTip {
+                            text: encryptButton.text
+                        }
+                    }
                     ToolButton {
                         id: settingsButton