Devtools: Implement changing room state

src/qml/MessageSourceSheet.qml

@@ -13,15 +13,51 @@ import org.kde.neochat
 
 Kirigami.Page {
     id: root
-    property string sourceText
+
+    property var model
+    property NeoChatRoom room
+
+    property string type
+    property string stateKey
+
+    property bool allowEdit: false
+
+    property string contentJson: model.stateEventContentJson(root.type, root.stateKey)
+    property string sourceText: model.stateEventJson(root.type, root.stateKey)
 
     topPadding: 0
     leftPadding: 0
     rightPadding: 0
     bottomPadding: 0
 
+    Connections {
+        enabled: root.model
+        target: root.room
+        function onChanged(): void {
+            root.contentJson = model.stateEventContentJson(root.type, root.stateKey);
+            root.sourceText = model.stateEventJson(root.type, root.stateKey);
+        }
+    }
+
     title: i18n("Event Source")
 
+    actions: [
+        Kirigami.Action {
+            text: i18nc("@action As in 'edit the state of this rooms'", "Edit state")
+            icon.name: "document-edit"
+            visible: root.allowEdit
+            enabled: room.canSendState(root.type) && (!root.stateKey.startsWith("@") || root.stateKey === root.room.connection.localUserId) && root.type !== "m.room.create"
+            onTriggered: pageStack.pushDialogLayer(Qt.createComponent("org.kde.neochat", "EditStateDialog.qml"), {
+                room: root.room,
+                type: root.type,
+                stateKey: root.stateKey,
+                sourceText: root.contentJson,
+            }, {
+                title: i18nc("@title As in 'edit the state of this rooms'", "Edit State")
+            })
+        }
+    ]
+
     QQC2.ScrollView {
         id: scrollView
         anchors.fill: parent