From 7c087c69a843750db9db812a162659ff58596ad0 Mon Sep 17 00:00:00 2001
From: Stefano Babic <sbabic@denx.de>
Date: Thu, 6 Dec 2018 10:28:45 +0100
Subject: [PATCH] Added a button to go back from progress window

It is possible to go back from the network window
pressing the esc key, but this is not possible
when the device has only a touchscreen / mouse.

Add a "Cancel" button to go back to the main window.

Signed-off-by: Stefano Babic <sbabic@denx.de>
---
 SWUpdateGUI.lua | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/SWUpdateGUI.lua b/SWUpdateGUI.lua
index 2aa36a8..046adf9 100755
--- a/SWUpdateGUI.lua
+++ b/SWUpdateGUI.lua
@@ -295,6 +295,15 @@ local progwin = ui.Window:new
               Id = "message-box",
             }
           }
+        },
+        ui.Button:new
+        {
+          Id = "progress-cancel-button",
+          Text = L.BACK,
+          Disabled = true,
+          onClick = function(self)
+            app:switchwindow("network-window", "MainWindow")
+          end
         }
 			}
 		}
@@ -489,6 +498,8 @@ app = ui.Application:new
   msgUser = function(self,msg)
     local prog = msg[-1]
     self:switchtoprog(self)
+    g = self:getById("progress-cancel-button")
+    g:setValue("Disabled", true)
     t = {}
     for field in string.gmatch(prog, "%S+" ) do
       k,v = string.match(field, "(%a+)=\'(.*)\'")
@@ -537,9 +548,13 @@ app = ui.Application:new
     elseif status == STATUS_FAILURE then
       g:setValue("Text", L.FAILURE)
       g:setValue("Style", "color: #ff0000;")
+      g = self:getById("progress-cancel-button")
+      g:setValue("Disabled", false)
     elseif status == STATUS_SUCCESS then
       g:setValue("Text", L.SUCCESS)
       g:setValue("Style", "color: #00ff00;")
+      g = self:getById("progress-cancel-button")
+      g:setValue("Disabled", false)
     elseif status == STATUS_START then
       g:setValue("Text", L.STARTING_UPDATE)
     else