Add history visibiltiy room setting

Add setting for setting the history visibility.

Note this setting can only be read not set for Quotient version < 0.7 as there is no event definition for a history visibility state event and it doesn't seem worth creating one when not needed with Quotient 0.7.

BUG: 457840

src/neochatroom.cpp

@@ -859,7 +859,15 @@ bool NeoChatRoom::canSendState(const QString &eventType) const
     auto pl = plEvent->powerLevelForState(eventType);
     auto currentPl = plEvent->powerLevelForUser(localUser()->id());
 
+#ifndef QUOTIENT_07
+    if (eventType == "m.room.history_visibility") {
+        return false;
+    } else {
+        return currentPl >= pl;
+    }
+#else
     return currentPl >= pl;
+#endif
 }
 
 bool NeoChatRoom::readMarkerLoaded() const
@@ -916,6 +924,32 @@ void NeoChatRoom::setJoinRule(const QString &joinRule)
     // Not emitting joinRuleChanged() here, since that would override the change in the UI with the *current* value, which is not the *new* value.
 }
 
+QString NeoChatRoom::historyVisibility() const
+{
+#ifdef QUOTIENT_07
+    return currentState().get("m.room.history_visibility")->contentJson()["history_visibility"_ls].toString();
+#else
+    return getCurrentState("m.room.history_visibility")->contentJson()["history_visibility"_ls].toString();
+#endif
+}
+
+void NeoChatRoom::setHistoryVisibility(const QString &historyVisibilityRule)
+{
+    if (!canSendState("m.room.history_visibility")) {
+        qWarning() << "Power level too low to set history visibility";
+        return;
+    }
+
+#ifdef QUOTIENT_07
+    setState("m.room.history_visibility", "", QJsonObject{{"history_visibility", historyVisibilityRule}});
+#else
+    qWarning() << "Quotient 0.7 required to set history visibility";
+    return;
+#endif
+
+    // Not emitting historyVisibilityChanged() here, since that would override the change in the UI with the *current* value, which is not the *new* value.
+}
+
 QCoro::Task<void> NeoChatRoom::doDeleteMessagesByUser(const QString &user, QString reason)
 {
     QStringList events;

src/neochatroom.h

@@ -48,6 +48,7 @@ class NeoChatRoom : public Quotient::Room
     Q_PROPERTY(QDateTime lastActiveTime READ lastActiveTime NOTIFY lastActiveTimeChanged)
     Q_PROPERTY(bool isInvite READ isInvite NOTIFY isInviteChanged)
     Q_PROPERTY(QString joinRule READ joinRule WRITE setJoinRule NOTIFY joinRuleChanged)
+    Q_PROPERTY(QString historyVisibility READ historyVisibility WRITE setHistoryVisibility NOTIFY historyVisibilityChanged)
     Q_PROPERTY(QString htmlSafeDisplayName READ htmlSafeDisplayName NOTIFY displayNameChanged)
     Q_PROPERTY(PushNotificationState::State pushNotificationState MEMBER m_currentPushNotificationState WRITE setPushNotificationState NOTIFY
                    pushNotificationStateChanged)
@@ -112,6 +113,9 @@ public:
     [[nodiscard]] QString joinRule() const;
     void setJoinRule(const QString &joinRule);
 
+    [[nodiscard]] QString historyVisibility() const;
+    void setHistoryVisibility(const QString &historyVisibilityRule);
+
     [[nodiscard]] bool hasFileUploading() const
     {
         return m_hasFileUploading;
@@ -258,6 +262,7 @@ Q_SIGNALS:
     void chatBoxAttachmentPathChanged();
     void canEncryptRoomChanged();
     void joinRuleChanged();
+    void historyVisibilityChanged();
 
 public Q_SLOTS:
     void uploadFile(const QUrl &url, const QString &body = QString());

src/qml/RoomSettings/Security.qml

@@ -58,6 +58,53 @@ Kirigami.ScrollablePage {
                 }
             }
         }
+
+        MobileForm.FormCard {
+            Layout.topMargin: Kirigami.Units.largeSpacing
+            Layout.fillWidth: true
+            contentItem: ColumnLayout {
+                spacing: 0
+                MobileForm.FormCardHeader {
+                    title: i18nc("@option:check", "Message history visibility")
+                }
+                MobileForm.FormRadioDelegate {
+                    text: i18nc("@option:check", "Anyone")
+                    description: i18nc("@option:check", "Anyone, regardless of whether they have joined, can view history.")
+                    checked: room.historyVisibility === "world_readable"
+                    enabled: room.canSendState("m.room.history_visibility")
+                    onCheckedChanged: if (checked) {
+                        room.historyVisibility = "world_readable"
+                    }
+                }
+                MobileForm.FormRadioDelegate {
+                    text: i18nc("@option:check", "Members only")
+                    description: i18nc("@option:check", "All members can view the entire message history, even before they joined.")
+                    checked: room.historyVisibility === "shared"
+                    enabled: room.canSendState("m.room.history_visibility")
+                    onCheckedChanged: if (checked) {
+                        room.historyVisibility = "shared"
+                    }
+                }
+                MobileForm.FormRadioDelegate {
+                    text: i18nc("@option:check", "Members only (since invite)")
+                    description: i18nc("@option:check", "New members can view the message history from the point they were invited to the room.")
+                    checked: room.historyVisibility === "invited"
+                    enabled: room.canSendState("m.room.history_visibility")
+                    onCheckedChanged: if (checked) {
+                        room.historyVisibility = "invited"
+                    }
+                }
+                MobileForm.FormRadioDelegate {
+                    text: i18nc("@option:check", "Members only (since joining)")
+                    description: i18nc("@option:check", "New members can view the message history from the point they joined the room.")
+                    checked: room.historyVisibility === "joined"
+                    enabled: room.canSendState("m.room.history_visibility")
+                    onCheckedChanged: if (checked) {
+                        room.historyVisibility = "joined"
+                    }
+                }
+            }
+        }
     }
 
     footer: QQC2.ToolBar {