Add room upgrade button

Add button to upgrade the room if the user has a high enough power level and the room is not at the highest available version.

src/neochatroom.cpp

@@ -94,6 +94,7 @@ NeoChatRoom::NeoChatRoom(Connection *connection, QString roomId, JoinState joinS
     connect(this, &Room::changed, this, [this] {
         Q_EMIT canEncryptRoomChanged();
     });
+    connect(connection, &Connection::capabilitiesLoaded, this, &NeoChatRoom::maxRoomVersionChanged);
 }
 
 void NeoChatRoom::uploadFile(const QUrl &url, const QString &body)
@@ -1370,3 +1371,14 @@ void NeoChatRoom::setCanonicalAlias(const QString &newAlias)
         }
     });
 }
+
+int NeoChatRoom::maxRoomVersion() const
+{
+    int maxVersion = 0;
+    for (auto roomVersion : connection()->availableRoomVersions()) {
+        if (roomVersion.id.toInt() > maxVersion) {
+            maxVersion = roomVersion.id.toInt();
+        }
+    }
+    return maxVersion;
+}

src/neochatroom.h

@@ -65,6 +65,13 @@ class NeoChatRoom : public Quotient::Room
     Q_PROPERTY(QString chatBoxAttachmentPath READ chatBoxAttachmentPath WRITE setChatBoxAttachmentPath NOTIFY chatBoxAttachmentPathChanged)
     Q_PROPERTY(bool canEncryptRoom READ canEncryptRoom NOTIFY canEncryptRoomChanged)
 
+    /**
+     * @brief Get the maximum room version that the server supports.
+     *
+     * Only returns main integer room versions (i.e. no msc room versions).
+     */
+    Q_PROPERTY(int maxRoomVersion READ maxRoomVersion NOTIFY maxRoomVersionChanged)
+
 public:
     enum MessageType {
         Positive,
@@ -223,6 +230,8 @@ public:
     }
 #endif
 
+    int maxRoomVersion() const;
+
 private:
     QSet<const Quotient::RoomEvent *> highlights;
 
@@ -274,6 +283,7 @@ Q_SIGNALS:
     void canEncryptRoomChanged();
     void joinRuleChanged();
     void historyVisibilityChanged();
+    void maxRoomVersionChanged();
 
 public Q_SLOTS:
     void uploadFile(const QUrl &url, const QString &body = QString());

src/qml/RoomSettings/General.qml

@@ -126,6 +126,25 @@ Kirigami.ScrollablePage {
                 MobileForm.FormTextDelegate {
                     text: i18n("Room version")
                     description: room.version
+
+                    contentItem.children: QQC2.Button {
+                        visible: room.canSwitchVersions()
+                        enabled: room.version < room.maxRoomVersion
+                        text: i18n("Upgrade Room")
+                        icon.name: "arrow-up-double"
+
+                        onClicked: {
+                            if (room.canSwitchVersions()) {
+                                roomUpgradeSheet.currentRoomVersion = room.version
+                                roomUpgradeSheet.open()
+                            }
+                        }
+
+                        QQC2.ToolTip {
+                            text: text
+                            delay: Kirigami.Units.toolTipDelay
+                        }
+                    }
                 }
             }
         }
@@ -264,6 +283,30 @@ Kirigami.ScrollablePage {
 
             OpenFileDialog {}
         }
+
+        Kirigami.OverlaySheet {
+            id: roomUpgradeSheet
+
+            property var currentRoomVersion
+
+            title: i18n("Upgrade the Room")
+            Kirigami.FormLayout {
+                QQC2.SpinBox {
+                    id: spinBox
+                    Kirigami.FormData.label: i18n("Select new version")
+                    from: room.version
+                    to: room.maxRoomVersion
+                    value: room.version
+                }
+                QQC2.Button {
+                    text: i18n("Confirm")
+                    onClicked: {
+                        room.switchVersion(spinBox.value)
+                        roomUpgradeSheet.close()
+                    }
+                }
+            }
+        }
     }
 }