changed element type to confirm container deletion from MessageDialog to PopupWithQuestion

- fixed "back" button availability for readonly servers

client/ui/qml/Pages/PageServerContainers.qml

@@ -297,23 +297,24 @@ PageBase {
                                 implicitHeight: 30
 
                                 checked: default_role
-
+                                onClicked: popupRemove.open()
-                                MessageDialog {
-                                    id: dialogRemove
-                                    buttons: StandardButton.Yes | StandardButton.Cancel
-                                    title: "AmneziaVPN"
-                                    text: qsTr("Remove container") + " " + name_role + "?" + "\n" + qsTr("This action will erase all data of this container on the server.")
-                                    onAccepted: {
-                                        tb_c.currentIndex = -1
-                                        ServerContainersLogic.onPushButtonRemoveClicked(proxyContainersModel.mapToSource(index))
-                                    }
-                                }
-
-                                onClicked: dialogRemove.open()
 
                                 VisibleBehavior on visible { }
                             }
 
+                            PopupWithQuestion {
+                                id: popupRemove
+                                questionText: qsTr("Remove container") + " " + name_role + "?" + "\n" + qsTr("This action will erase all data of this container on the server.")
+                                yesFunc: function() {
+                                    tb_c.currentIndex = -1
+                                    ServerContainersLogic.onPushButtonRemoveClicked(proxyContainersModel.mapToSource(index))
+                                    close()
+                                }
+                                noFunc: function() {
+                                    close()
+                                }
+                            }
+
                             ImageButtonType {
                                 id: button_share
                                 visible: (index === tb_c.currentIndex) && ServerContainersLogic.isManagedServer
@@ -418,7 +419,7 @@ PageBase {
 
     BlueButtonType {
         id: pb_add_container
-        visible: container_selector.selectedIndex < 0
+        visible: container_selector.selectedIndex < 0 && ServerContainersLogic.isManagedServer
 
         anchors.horizontalCenter: parent.horizontalCenter
         anchors.bottom: parent.bottom
@@ -430,6 +431,5 @@ PageBase {
         text: qsTr("Install new service")
         font.pixelSize: 16
         onClicked: container_selector.visible ? container_selector.close() : container_selector.open()
-
     }
 }

client/ui/qml/Pages/Protocols/PageProtoCloak.qml

@@ -11,10 +11,9 @@ PageProtocolBase {
     protocol: ProtocolEnum.Cloak
     logic: UiLogic.protocolLogic(protocol)
 
-    enabled: logic.pageEnabled
     BackButton {
         id: back
-        enabled: logic.pageEnabled
+        enabled: !logic.pushButtonCancelVisible
     }
 
     Caption {

client/ui/qml/Pages/Protocols/PageProtoOpenVPN.qml

@@ -13,7 +13,7 @@ PageProtocolBase {
 
     BackButton {
         id: back
-        enabled: logic.pageEnabled
+        enabled: !logic.pushButtonCancelVisible
     }
 
     Caption {
@@ -285,8 +285,6 @@ PageProtocolBase {
                             }
                         }
                     }
-
-
                 }
 
                 BasicButtonType {
@@ -338,8 +336,6 @@ PageProtocolBase {
                             }
                         }
                     }
-
-
                 }
 
                 LabelType {

client/ui/qml/Pages/Protocols/PageProtoShadowSocks.qml

@@ -13,7 +13,7 @@ PageProtocolBase {
 
     BackButton {
         id: back
-        enabled: logic.pageEnabled
+        enabled: !logic.pushButtonCancelVisible
     }
 
     Caption {

client/ui/qml/main.qml

@@ -232,18 +232,6 @@ Window  {
         }
     }
 
-    MessageDialog {
-        id: closePrompt
-//        x: (root.width - width) / 2
-//        y: (root.height - height) / 2
-        title: qsTr("Exit")
-        text: qsTr("Do you really want to quit?")
-//        standardButtons: StandardButton.Yes | StandardButton.No
-//        onYesClicked: {
-//            Qt.quit()
-//        }
-        visible: false
-    }
     MessageDialog {
         id: publicKeyWarning
         title: "AmneziaVPN"