misc: improve UX when disconnected/disabled

Show a notification in the conversation like Anroid when the account
is disabled or when there is no network connectivity

Change-Id: I0f875fd24a2b29b8f7f48746651b156451e1250f

src/app/constant/JamiStrings.qml

@@ -305,6 +305,8 @@ Item {
     property string showPlugins: qsTr("Show available plugins")
     property string addToConversations: qsTr("Add to conversations")
     property string backendError: qsTr("This is the error from the backend: %0")
+    property string disabledAccount: qsTr("The account is disabled")
+    property string noNetworkConnectivity: qsTr("No network connectivity")
 
     // Chatview footer
     property string jumpToLatest: qsTr("Jump to latest")

src/app/mainview/components/ChatView.qml

@@ -136,6 +136,25 @@ Rectangle {
             }
         }
 
+        Connections {
+            target: CurrentConversation
+            enabled: LRCInstance.debugMode()
+
+            function onErrorsChanged() {
+                if (CurrentConversation.errors.length > 0) {
+                    errorRect.errorLabel.text = CurrentConversation.errors[0]
+                    errorRect.backendErrorToolTip.text = JamiStrings.backendError.arg(CurrentConversation.backendErrors[0])
+                }
+                errorRect.visible = CurrentConversation.errors.length > 0
+            }
+        }
+
+        GenericErrorsRow {
+            id: genericError
+            Layout.fillWidth: true
+            Layout.preferredHeight: JamiTheme.chatViewHeaderPreferredHeight
+        }
+
         ConversationErrorsRow {
             id: errorRect
             Layout.fillWidth: true

src/app/mainview/components/GenericErrorsRow.qml

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2022 Savoir-faire Linux Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+import QtQuick
+import QtQuick.Controls
+import QtQuick.Layouts
+import Qt5Compat.GraphicalEffects
+
+import net.jami.Models 1.1
+import net.jami.Adapters 1.1
+import net.jami.Constants 1.1
+
+import "../../commoncomponents"
+
+Rectangle {
+    id: root
+
+    opacity: visible
+
+    property alias text: errorLabel.text
+
+    color: JamiTheme.filterBadgeColor
+    visible: CurrentAccount.status === Account.Status.UNREGISTERED
+
+    RowLayout {
+        anchors.fill: parent
+        anchors.margins: JamiTheme.preferredMarginSize
+
+        Text {
+            id: errorLabel
+            Layout.alignment: Qt.AlignVCenter
+            text: CurrentAccount.enabled? JamiStrings.noNetworkConnectivity : JamiStrings.disabledAccount
+            color: JamiTheme.filterBadgeTextColor
+            font.pixelSize: JamiTheme.headerFontSize
+            elide: Text.ElideRight
+        }
+    }
+
+    Behavior on opacity {
+        NumberAnimation {
+            from: 0
+            duration: JamiTheme.shortFadeDuration
+        }
+    }
+}

src/libclient/callmodel.cpp

@@ -1649,7 +1649,7 @@ CallModelPimpl::slotConferenceCreated(const QString& accountId, const QString& c
 void
 CallModelPimpl::slotConferenceChanged(const QString& accountId,
                                       const QString& confId,
-                                      const QString& state)
+                                      const QString&)
 {
     if (accountId != linked.owner.id)
         return;