Update drag button at right time

It needs to update whenever the viewport or clipping changes, so
let's make sure that actually happens and not trigger on mildly
related events.

diff --git a/app/ui.js b/app/ui.js
index 0ea85b337779ada645bf5fc26be824f80081205e..7854b5cbaaed97f39b4273f719a1513b34adbe4e 100644 (file)
--- a/app/ui.js
+++ b/app/ui.js
@@ -266,7 +266,6 @@ var UI;
         addResizeHandlers: function() {
             window.addEventListener('resize', UI.applyResizeMode);
             window.addEventListener('resize', UI.updateViewClip);
-            window.addEventListener('resize', UI.updateViewDrag);
         },
 
         addControlbarHandlers: function() {
@@ -1313,6 +1312,10 @@ var UI;
                 // the size of the browser window.
                 display.viewportChangeSize(size.w, size.h);
             }
+
+            // Changing the viewport may change the state of
+            // the dragging button
+            UI.updateViewDrag();
         },
 
         // Handle special cases where clipping is forced on/off or locked
@@ -1664,7 +1667,6 @@ var UI;
 
         updateSessionSize: function(rfb, width, height) {
             UI.updateViewClip();
-            UI.updateViewDrag();
         },
 
         updateDesktopName: function(rfb, name) {