Hi all, attached are two patches for the NETWM spec. One message is to show the window manager's window menu, the other is for passing the responsibility to perform a button action from the client to the window manager. For detailed information please have a look on the attached patches.
The need for these two client messages were derived by GTK+ and KWin developers for better integrating GTK's new client-side-decorated windows in environments which are not GNOME Shell. KWin will add support for those two new hints and it looks like GTK+ and Mutter will also support them. I would like to hear your feedback on them for inclusion into the NETWM spec. Best Regards Martin Gräßlin
From 69e43ccba5fbc09a2bf0da3106f46f20d392fddf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin GräÃlin?= <mgraess...@kde.org>
Date: Mon, 30 Jun 2014 15:34:57 +0200
Subject: [PATCH 1/2] _NET_WM_SHOW_WINDOW_MENU
Adding a new client message _NET_WM_SHOW_WINDOW_MENU which can be used
by Clients to show the window manager's window menu. The rational is
to integrate Clients using client-side-decorations better into the
environment they are running in.
---
wm-spec/wm-spec.xml | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/wm-spec/wm-spec.xml b/wm-spec/wm-spec.xml
index 0859dc6..9bb5c25 100644
--- a/wm-spec/wm-spec.xml
+++ b/wm-spec/wm-spec.xml
@@ -1789,6 +1789,33 @@ default positions.
Note: The property is not used anywhere else besides being listed in _NET_SUPPORTED.
</para>
</sect2>
+ <sect2>
+ <title>_NET_WM_SHOW_WINDOW_MENU</title>
+ <para>
+By including this hint in _NET_SUPPORTED the Window Manager announces
+that it supports showing a menu offering window management options for a
+given client.
+ </para>
+ <para>
+A Client can request this menu by sending a _NET_WM_SHOW_WINDOW_MENU client message
+to the root window:
+ </para>
+ <programlisting><![CDATA[
+_NET_WM_SHOW_WINDOW_MENU
+ message_type = _NET_WM_SHOW_WINDOW_MENU
+ window = window for which the menu should be shown
+ format = 32
+ data.l[0] = xinput2_device_id
+ data.l[1] = root_x
+ data.l[2] = root_y
+ other data.l[] elements = 0
+]]></programlisting>
+ <para>
+If the Xinput2 device which triggered the event does not provide coordinates (e.g.
+triggered by a keyboard shortcut) the Client should set it to useful values the
+window manager can use to position the menu.
+ </para>
+ </sect2>
</sect1>
<sect1>
@@ -2305,6 +2332,9 @@ OR OTHER DEALINGS IN THE SOFTWARE.
<title>Changes since 1.4draft</title>
<itemizedlist>
<listitem><para>
+Added _NET_WM_SHOW_WINDOW_MENU
+ </para></listitem>
+ <listitem><para>
Added _NET_WM_BYPASS_COMPOSITOR
</para></listitem>
<listitem><para>
--
2.0.0
From d070b0abfdf3f6d70e3ef84ac23d46298c27e3c1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Martin GräÃlin?= <mgraess...@kde.org>
Date: Mon, 30 Jun 2014 15:47:11 +0200
Subject: [PATCH 2/2] _NET_WM_PERFORM_BUTTON_ACTION
Adding a new client message _NET_WM_PERFORM_BUTTON_ACTION which can
be used by Clients to request the window manager to perform an action
when a button is pressed on the window decoration area of a window.
The rational is to integrate Clients using client-side-decorations
better into the environment they are running in. So instead of
performing an action like raise/lower on middle click the task is
delegated to the window manager. The window manager can then perform
the same action as it does for windows it decorates.
---
wm-spec/wm-spec.xml | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/wm-spec/wm-spec.xml b/wm-spec/wm-spec.xml
index 9bb5c25..3e9ab92 100644
--- a/wm-spec/wm-spec.xml
+++ b/wm-spec/wm-spec.xml
@@ -1816,6 +1816,35 @@ triggered by a keyboard shortcut) the Client should set it to useful values the
window manager can use to position the menu.
</para>
</sect2>
+ <sect2>
+ <title>_NET_WM_PERFORM_BUTTON_ACTION</title>
+ <para>
+By including this hint in _NET_SUPPORTED the Window Manager announces
+that it supports performing pointer button specific events. For example a window
+manager might raise or lower a Client when the decoration is middle clicked or show
+a window menu on right click.
+ </para>
+ <para>
+A Client can request that the window manger should perform such an action by sending
+a _NET_WM_PERFORM_BUTTON_ACTION client message to the root window:
+ </para>
+ <programlisting><![CDATA[
+_NET_WM_PERFORM_BUTTON_ACTION
+ message_type = _NET_WM_PERFORM_BUTTON_ACTION
+ window = window for which the action should be performed
+ format = 32
+ data.l[0] = xinput2_device_id
+ data.l[1] = root_x
+ data.l[2] = root_y
+ data.l[3] = button
+ data.l[4] = timestamp
+]]></programlisting>
+ <para>
+If the Xinput2 device which triggered the event does not provide coordinates (e.g.
+triggered by a keyboard shortcut) the Client should set it to useful values the
+window manager can use to position the menu.
+ </para>
+ </sect2>
</sect1>
<sect1>
@@ -2332,6 +2361,9 @@ OR OTHER DEALINGS IN THE SOFTWARE.
<title>Changes since 1.4draft</title>
<itemizedlist>
<listitem><para>
+Added _NET_WM_PERFORM_BUTTON_ACTION
+ </para></listitem>
+ <listitem><para>
Added _NET_WM_SHOW_WINDOW_MENU
</para></listitem>
<listitem><para>
--
2.0.0
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