From 752e7f4d9a0437d342e3da7dcd69fc523d888e5e Mon Sep 17 00:00:00 2001
From: Tobias Fella <fella@posteo.de>
Date: Wed, 16 Nov 2022 02:49:40 +0100
Subject: [PATCH] Implement changing join rules

---
 src/neochatroom.cpp               | 14 ++++++++++++++
 src/neochatroom.h                 |  4 +++-
 src/qml/RoomSettings/Security.qml | 24 ++++++++++++++++++++----
 3 files changed, 37 insertions(+), 5 deletions(-)

diff --git a/src/neochatroom.cpp b/src/neochatroom.cpp
index f8657283f..a4c767252 100644
--- a/src/neochatroom.cpp
+++ b/src/neochatroom.cpp
@@ -874,6 +874,20 @@ QString NeoChatRoom::joinRule() const
     return getCurrentState<JoinRulesEvent>()->joinRule();
 }
 
+void NeoChatRoom::setJoinRule(const QString &joinRule)
+{
+    if (!canSendState("m.room.join_rules")) {
+        qWarning() << "Power level too low to set join rules";
+        return;
+    }
+#ifdef QUOTIENT_07
+    setState("m.room.join_rules", "", QJsonObject{{"join_rule", joinRule}});
+#else
+    setState<JoinRulesEvent>(QJsonObject{{"type", "m.room.join_rules"}, {"state_key", ""}, {"content", QJsonObject{{"join_rule", joinRule}}}});
+#endif
+    // Not emitting joinRuleChanged() 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)
 {
     QStringList events;
diff --git a/src/neochatroom.h b/src/neochatroom.h
index 05100bfc7..0b755ec6f 100644
--- a/src/neochatroom.h
+++ b/src/neochatroom.h
@@ -49,7 +49,7 @@ class NeoChatRoom : public Quotient::Room
     Q_PROPERTY(bool readMarkerLoaded READ readMarkerLoaded NOTIFY readMarkerLoadedChanged)
     Q_PROPERTY(QDateTime lastActiveTime READ lastActiveTime NOTIFY lastActiveTimeChanged)
     Q_PROPERTY(bool isInvite READ isInvite NOTIFY isInviteChanged)
-    Q_PROPERTY(QString joinRule READ joinRule CONSTANT)
+    Q_PROPERTY(QString joinRule READ joinRule WRITE setJoinRule NOTIFY joinRuleChanged)
     Q_PROPERTY(QString htmlSafeDisplayName READ htmlSafeDisplayName NOTIFY displayNameChanged)
     Q_PROPERTY(PushNotificationState::State pushNotificationState MEMBER m_currentPushNotificationState WRITE setPushNotificationState NOTIFY
                    pushNotificationStateChanged)
@@ -112,6 +112,7 @@ public:
     bool isEventHighlighted(const Quotient::RoomEvent *e) const;
 
     [[nodiscard]] QString joinRule() const;
+    void setJoinRule(const QString &joinRule);
 
     [[nodiscard]] bool hasFileUploading() const
     {
@@ -254,6 +255,7 @@ Q_SIGNALS:
     void chatBoxEditIdChanged();
     void chatBoxAttachmentPathChanged();
     void canEncryptRoomChanged();
+    void joinRuleChanged();
 
 public Q_SLOTS:
     void uploadFile(const QUrl &url, const QString &body = QString());
diff --git a/src/qml/RoomSettings/Security.qml b/src/qml/RoomSettings/Security.qml
index b4c9dce3f..624e4c215 100644
--- a/src/qml/RoomSettings/Security.qml
+++ b/src/qml/RoomSettings/Security.qml
@@ -24,7 +24,10 @@ Kirigami.ScrollablePage {
                 text: i18nc("@option:check", "Private (invite only)")
                 Kirigami.FormData.label: i18nc("@option:check", "Access:")
                 checked: room.joinRule === "invite"
-                enabled: false
+                enabled: room.canSendState("m.room.join_rules")
+                onCheckedChanged: if (checked) {
+                    room.joinRule = "invite";
+                }
             }
             QQC2.Label {
                 text: i18n("Only invited people can join.")
@@ -33,19 +36,32 @@ Kirigami.ScrollablePage {
             QQC2.RadioButton {
                 text: i18nc("@option:check", "Space members")
                 checked: room.joinRule === "restricted"
-                enabled: false
+                enabled: room.canSendState("m.room.join_rules") && ["8", "9", "10"].includes(room.version) && false
+                onCheckedChanged: if (checked) {
+                    room.joinRule = "restricted";
+                }
             }
             QQC2.Label {
                 text: i18n("Anyone in a space can find and join.")
+                wrapMode: Qt.Wrap
+                width: root.width
                 font: Kirigami.Theme.smallFont
             }
+            QQC2.Label {
+                font: Kirigami.Theme.smallFont
+                visible: !["8", "9", "10"].includes(room.version)
+                text: i18n("You need to upgrade this room to a newer version to enable this setting.")
+            }
             QQC2.RadioButton {
                 text: i18nc("@option:check", "Public")
                 checked: room.joinRule === "public"
-                enabled: false
+                enabled: room.canSendState("m.room.join_rules")
+                onCheckedChanged: if (checked) {
+                    room.joinRule = "public";
+                }
             }
             QQC2.Label {
-                text: i18nc("@option:check", "Anyone can find and join.") + room.joinRule
+                text: i18nc("@option:check", "Anyone can find and join.")
                 font: Kirigami.Theme.smallFont
             }
         }