feat: display connected/disconnected status in the chat module

src/app/chat/event_handling.nim

@@ -43,6 +43,12 @@ proc handleChatEvents(self: ChatController) =
     var msg = MessageSentArgs(e)
     self.view.markMessageAsSent(msg.chatId, msg.id)
 
+  self.status.events.on("chat:disconnected") do(e: Args):
+    self.view.setConnected(false)
+
+  self.status.events.on("chat:connected") do(e: Args):
+    self.view.setConnected(true)
+
 proc handleMailserverEvents(self: ChatController) =
   self.status.events.on("mailserverTopics") do(e: Args):
     self.status.mailservers.addTopics(TopicArgs(e).topics)

src/app/chat/view.nim

@@ -28,6 +28,7 @@ QtObject:
       recentStickers*: StickerList
       replyTo: string
       channelOpenTime*: Table[string, int64]
+      connected: bool
 
   proc setup(self: ChatsView) = self.QAbstractListModel.setup
 
@@ -43,6 +44,7 @@ QtObject:
   proc newChatsView*(status: Status): ChatsView =
     new(result, delete)
     result.status = status
+    result.connected = false
     result.chats = newChannelsList(status)
     result.activeChannel = newChatItemView(status)
     result.messageList = initTable[string, ChatMessageList]()
@@ -270,3 +272,16 @@ QtObject:
 
   proc ensResolved(self: ChatsView, pubKey: string) {.slot.} =
     self.ensWasResolved(pubKey)
+
+  proc isConnected*(self: ChatsView): bool {.slot.} =
+    result = self.connected
+
+  proc onlineStatusChanged(self: ChatsView, connected: bool) {.signal.}
+
+  proc setConnected*(self: ChatsView, connected: bool) =
+    self.connected = connected
+    self.onlineStatusChanged(connected)
+
+  QtProperty[bool] isOnline:
+    read = isConnected
+    notify = onlineStatusChanged

src/app/node/core.nim

@@ -1,6 +1,7 @@
 import NimQml, chronicles
 import ../../signals/types
-import ../../status/[status, node]
+import ../../status/[status, node, network]
+import ../../status/libstatus/types as status_types
 import view
 
 logScope:
@@ -24,7 +25,16 @@ proc delete*(self: NodeController) =
 proc init*(self: NodeController) =
   discard
 
+proc handleWalletSignal(self: NodeController, data: WalletSignal) =
+  self.view.setLastMessage(data.content)
+
+proc handleDiscoverySummary(self: NodeController, data: DiscoverySummarySignal) =
+  self.status.network.peerSummaryChange(data.enodes)
+
 method onSignal(self: NodeController, data: Signal) =
-  debug "New signal received"
+  case data.signalType: 
-  var msg = cast[WalletSignal](data)
+  of SignalType.Wallet: handleWalletSignal(self, WalletSignal(data))
-  self.view.setLastMessage(msg.content)
+  of SignalType.DiscoverySummary: handleDiscoverySummary(self, DiscoverySummarySignal(data))
+  else:
+    warn "Unhandled signal received", signalType = data.signalType
+  

src/nim_status_client.nim

@@ -107,6 +107,7 @@ proc mainProc() =
   signalController.init()
   signalController.addSubscriber(SignalType.Wallet, wallet)
   signalController.addSubscriber(SignalType.Wallet, node)
+  signalController.addSubscriber(SignalType.DiscoverySummary, node)
   signalController.addSubscriber(SignalType.Message, chat)
   signalController.addSubscriber(SignalType.Message, profile)
   signalController.addSubscriber(SignalType.DiscoverySummary, chat)

src/status/network.nim

@@ -0,0 +1,25 @@
+import chronicles, eventemitter
+
+logScope:
+  topics = "network-model"
+
+type
+  NetworkModel* = ref object
+    peers*: seq[string]
+    events*: EventEmitter
+
+proc newNetworkModel*(events: EventEmitter): NetworkModel =
+  result = NetworkModel()
+  result.events = events
+  result.peers = @[]
+
+proc peerSummaryChange*(self: NetworkModel, peers: seq[string]) =
+  if peers.len == 0:
+    self.events.emit("chat:disconnected", Args())
+  
+  if peers.len > 0 and self.peers.len == 0:
+    self.events.emit("chat:connected", Args())
+
+  self.peers = peers
+
+proc peerCount*(self: NetworkModel): int = self.peers.len

src/status/status.nim

@@ -13,6 +13,7 @@ import mailservers as mailservers
 import messages as messages
 import contacts as contacts
 import profile
+import network as network
 
 type Status* = ref object
   events*: EventEmitter
@@ -24,6 +25,7 @@ type Status* = ref object
   node*: NodeModel
   profile*: ProfileModel
   contacts*: ContactModel
+  network*: NetworkModel
 
 proc newStatusInstance*(): Status =
   result = Status()
@@ -37,6 +39,7 @@ proc newStatusInstance*(): Status =
   result.messages = messages.newMessagesModel(result.events)
   result.profile = profile.newProfileModel()
   result.contacts = contacts.newContactModel(result.events)
+  result.network = network.newNetworkModel(result.events)
 
 proc initNode*(self: Status) = 
   libstatus_accounts.initNode()

ui/app/AppLayouts/Chat/ChatColumn.qml

@@ -11,6 +11,7 @@ StackLayout {
     property int chatGroupsListViewCount: 0
     property bool isReply: false
     property var appSettings
+    property bool isConnected: false
     Layout.fillHeight: true
     Layout.fillWidth: true
     Layout.minimumWidth: 300
@@ -26,7 +27,49 @@ StackLayout {
             Layout.fillWidth: true
             z: 60
             spacing: 0
-            TopBar {}
+            TopBar {
+                id: topBar
+            }
+        }
+
+        RowLayout {
+            Layout.alignment: Qt.AlignHCenter
+            Layout.fillWidth: true
+            z: 60
+            Rectangle {
+                id: connectedStatusRect
+                Layout.fillWidth: true
+                height: 40;
+                color: isConnected ? Style.current.green : Style.current.darkGrey
+                visible: false
+                Text {
+                    anchors.horizontalCenter: parent.horizontalCenter
+                    anchors.verticalCenter: parent.verticalCenter
+                    color: Style.current.white
+                    id: connectedStatusLbl
+                    text: isConnected ? 
+                        qsTr("Connected") :
+                        qsTr("Disconnected")
+                }
+            }
+
+            Timer {
+                id: timer
+            }
+
+            Connections {
+                target: chatsModel
+                onOnlineStatusChanged: {
+                    isConnected = connected
+                    if(connected){
+                        timer.setTimeout(function(){ 
+                            connectedStatusRect.visible = false;
+                        }, 5000);
+                    } else {
+                        connectedStatusRect.visible = true;
+                    }
+                }
+            }
         }
 
         RowLayout {

ui/imports/Themes/DarkTheme.qml

@@ -11,6 +11,7 @@ Theme {
     property color transparent: "#00000000"
     property color darkGrey: "#939BA1"
     property color lightBlueText: "#8f9fec"
+    property color green: "#41cd52"
 
     property color darkBlue: "#3c55c9"
     property color darkBlueBtn: "#5a70dd"

ui/imports/Themes/LightTheme.qml

@@ -16,7 +16,7 @@ Theme {
     property color red: "#FF2D55"
     property color lightRed: "#FFEAEE"
     property color green: "#4EBC60"
-    
+
     property color background: white
     property color border: grey
     property color textColor: black