ncp-web: disable event handler after poweroff

changelog.md

@@ -1,11 +1,13 @@
 
-[v0.46.17](https://github.com/nextcloud/nextcloudpi/commit/fbe639a) (2018-02-10) Add dialog for shutdown.
+[v0.46.18](https://github.com/nextcloud/nextcloudpi/commit/a3b8829) (2018-02-18) ncp-web: disable event handler after poweroff
 
-[v0.46.16](https://github.com/nextcloud/nextcloudpi/commit/2d3fc6f) (2018-02-16) remove redundant configuration from unattended upgrades
+[v0.46.17](https://github.com/nextcloud/nextcloudpi/commit/91686f2) (2018-02-10) Add dialog for shutdown.
 
-[v0.46.15](https://github.com/nextcloud/nextcloudpi/commit/45c5608) (2018-02-16) lamp: enhance SSL security (chacha cypher), and OCSP stapling
+[v0.46.16](https://github.com/nextcloud/nextcloudpi/commit/4bdbf93) (2018-02-16) remove redundant configuration from unattended upgrades
 
-[v0.46.14](https://github.com/nextcloud/nextcloudpi/commit/90dc944) (2018-02-16) log all NCP actions to /var/log/ncp.log
+[v0.46.15](https://github.com/nextcloud/nextcloudpi/commit/e965c1a) (2018-02-16) lamp: enhance SSL security (chacha cypher), and OCSP stapling
+
+[v0.46.14](https://github.com/nextcloud/nextcloudpi/commit/ff33be9) (2018-02-16) log all NCP actions to /var/log/ncp.log
 
 [v0.46.13](https://github.com/nextcloud/nextcloudpi/commit/19b0609) (2018-02-16) update: accept github branch as an argument to ncp-update to test development branch
 

ncp-web/ncp.js

@@ -159,7 +159,7 @@ $(function()
   } );
 
   // Power-off button
-  $( '#poweroff' ).on('click', function(e)
+  function poweroff_event_handler(e)
   {
     //e.preventBubble = true;
     $('#overlay').show();
@@ -170,7 +170,8 @@ $(function()
        $('#overlay').hide();
        $('#overlay').off('click');
     });
-  });
+  }
+  $( '#poweroff' ).on('click', poweroff_event_handler );
 
   $( '#poweroff-option_shutdown' ).on('click', function(e)
   {
@@ -182,6 +183,7 @@ $(function()
       function success( result ) 
       {
         $('#config-box-wrapper').hide();
+        $.off( poweroff_event_handler );
         $('#config-box-title').fill( "Shutting down..." ); 
       }).error( errorMsg );
   } );
@@ -196,6 +198,7 @@ $(function()
       function success( result ) 
       {
         $('#config-box-wrapper').hide();
+        $.off( poweroff_event_handler );
         $('#config-box-title').fill( "Rebooting..." ); 
       }).error( errorMsg );
   } );