bug#17439: 24.3.50; run-with-idle-timer runs on focus-out

[Juri Linkov]

> So are you saying we should NOT ignore focus-in?  If you still think
> focus-in should be ignored, then I think the above description
> (perhaps together with the window manager where it was observed)
> should be in the comments to the code.

After more testing without ignoring focus-in and with ignoring focus-out,
often pressing and releasing Alt-Tab quickly generates both events
focus-in and focus-out, and when having no time to show the Window List
focus-in moves the mouse pointer and hides the selected window.
So both events should be ignored, like `switch-frame' is already ignored
when switching between Emacs frames.  I'll add a comment about this.

And there are more fixes necessary in avoid.el.  This patch will ignore
modifiers used together with mouse events:

=== modified file 'lisp/avoid.el'
--- lisp/avoid.el       2014-01-01 07:43:34 +0000
+++ lisp/avoid.el       2014-05-10 20:36:19 +0000
@@ -347,7 +348,13 @@ (defun mouse-avoidance-ignore-p ()
                   (memq 'double modifiers)
                   (memq 'triple modifiers)
                   (memq 'drag modifiers)
-                  (memq 'down modifiers)))))))
+                  (memq 'down modifiers)
+                  (memq 'meta modifiers)
+                  (memq 'control modifiers)
+                  (memq 'shift modifiers)
+                  (memq 'hyper modifiers)
+                  (memq 'super modifiers)
+                  (memq 'alt modifiers)))))))
 
 (defun mouse-avoidance-banish ()
   (if (not (mouse-avoidance-ignore-p))

And this patch fixes the customization of `mouse-avoidance-banish-position'
(it can be tested by e.g. using `set-variable' on 
`mouse-avoidance-banish-position'):

=== modified file 'lisp/avoid.el'
--- lisp/avoid.el       2014-01-01 07:43:34 +0000
+++ lisp/avoid.el       2014-05-10 20:36:19 +0000
@@ -129,9 +129,10 @@ (defcustom mouse-avoidance-banish-positi
 TOP-OR-BOTTOM-POS: Distance from top or bottom edge of frame or window."
   :group   'avoid
   :version "24.3"
-  :type    '(alist :key-type symbol :value-type symbol)
-  :options '(frame-or-window side (side-pos integer)
-             top-or-bottom (top-or-bottom-pos integer)))
+  :type    '(alist :key-type symbol :value-type (choice symbol integer))
+  :options '((frame-or-window symbol) (side symbol) (side-pos integer)
+             (top-or-bottom symbol) (top-or-bottom-pos integer)))