I'm proposing that we add a new _NET_WM_STATE_FOCUSED hint to
_NET_WM_STATE. The goal is to be able to do something like [1].

We decided not to use the existing _NET_ACTIVE_WINDOW property since
it would mean that all clients would have to listen for changes on the
root window properties and also because _NET_ACTIVE_WINDOW allows for
at most one window while _NET_WM_STATE_FOCUSED can be set for any
number windows.

I'm attaching a patch against the 1.4.draft-2 xml file that I got from [2].

Comments are very welcome.


diff --git a/wm-spec-1.4.xml b/wm-spec-1.4.xml
index 98f9f9b..2518824 100644
--- a/wm-spec-1.4.xml
+++ b/wm-spec-1.4.xml
@@ -1117,6 +1117,7 @@ _NET_WM_STATE_FULLSCREEN, ATOM
 An implementation MAY add new atoms to this list. Implementations
@@ -1207,6 +1208,17 @@ the window got the required attention (usually, that it got activated).
+_NET_WM_STATE_FOCUSED indicates that the window is being presented as
+focused. This is purely an hint about how the Window Manager visually displays
+the window, in particular it's unrelated to input. Clients MUST regard this as
+a read only hint which they can't change.  The window given by
+_NET_ACTIVE_WINDOW will usually have this hint, but at times other windows may
+as well, if they have a strong association with the active window and will be
+considered as a unit with it by the user. This hint generally corresponds to
+whether window decorations are drawn in an active state.
+	</para>
+	<para>
 To change the state of a mapped window, a Client MUST send a _NET_WM_STATE
 client message to the root window:
@@ -2267,6 +2279,9 @@ Added _NET_WM_FULL_PLACEMENT.
+			<listitem><para>
+			</para></listitem>

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