sungmg/mutter-performance-source
1
0
Fork 0
Code Activity
mutter-performance-source/COMPLIANCE
Rob Adams e60da6c006 Fix some support for EWMH hints, and fix USER_TIME support to include the 
2004-07-31  Rob Adams  <readams@readams.net>

	Fix some support for EWMH hints, and fix USER_TIME support to
	include the DEMANDS_ATTENTION hint.  Also includes some code for
	implementing _NET_RESTACK_WINDOW and _NET_MOVERESIZE_WINDOW, but
	this is disabled pending feature thaw.

	* COMPLIANCE: update with new information

	* src/display.c (meta_display_open): add new hints to list

	* src/display.h (_MetaDisplay): Add new atoms to struct

	* src/screen.c (set_supported_hint): update the list of support
	hints.
	(set_desktop_viewport_hint): new function sets the viewport hint
	to (0,0) as required by the spec for WMs with no viewport support.
	(set_desktop_geometry_hint): new function to set the desktop size
	hint to the size of the display, since we don't implement large
	desktop support, as required by the spec.
	(meta_screen_resize): update the geometry hint on screen resize

	* src/window.c (meta_window_new_with_attrs): Initialize
	demands_attention state
	(set_net_wm_state): Set demands_attention hint in the window state
	(meta_window_show): If we don't pop up a window because of
	USER_TIME, set DEMANDS_ATTENTION on the window.
	(meta_window_focus): When a window receives focus, remove
	DEMANDS_ATTENTION hint
	(meta_window_client_message): Allow other apps to set
	DEMANDS_ATTENTION on a window.  Also, if the _NET_ACTIVE_WINDOW
	hint includes a timestamp, use it.
	(update_net_wm_state): Read DEMANDS_ATTENTION state also

	* src/window.h (_MetaWindow): add wm_state_demands_attention bit.
2004-07-31 19:56:10 +00:00

159 lines
No EOL
4.3 KiB
Text
Raw Blame History

Metacity Standards Compliance
=============================
$Id$
1) Introduction
2) EWMH Compliance
a. Root Window Properties
b. Root Window Messages
c. Application Window Properties
d. Window Manager Protocols
3) ICCCM Compliance
1) Introduction
---------------
This document details metacity compliance with the relevent standards.
The format of this document is as follows:
[-/+?] Hint Name/Feature Name (Version number)
Errata/Comments
The first character indicates the level of compliance as follows:
- none
/ partial
+ complete
? unknown
The title indicates a feature or a hint in the specification, and the
version number indicates the minimum version of the specification
supported by metacity. Later versions may be supported if no
incompatible changes have been made in the specification.
2) EWMH Compliance
------------------
The EWMH, or Extended Window Manager Hints is a freedesktop.org-
developed standard to support a number of conventions for
communication between the window manager and clients. It builds on
and extends the ICCCM (See Section 3). A copy of the current EWMH
standard is available at http://freedesktop.org/Standards/wm-spec/
a. Root Window Properties
-------------------------
+ _NET_SUPPORTED (1.3)
+ _NET_CLIENT_LIST (1.3)
+ _NET_NUMBER_OF_DESKTOPS (1.3)
+ _NET_DESKTOP_GEOMETRY (1.3)
Metacity does not implement large desktops, so this is kept set to
the screen size.
+ _NET_DESKTOP_VIEWPORT (1.3)
Metacity does not implement viewports, so this is a constant (0,0).
+ _NET_CURRENT_DESKTOP (1.3)
+ _NET_DESKTOP_NAMES (1.3)
+ _NET_ACTIVE_WINDOW (1.3)
+ _NET_WORKAREA (1.3)
+ _NET_SUPPORTING_WM_CHECK (1.3)
+ _NET_VIRTUAL_ROOTS (1.3)
Metacity does not read or set this property, but it does not use
virtual roots to implement virtual desktops, so it complies with the
specification.
+ _NET_DESKTOP_LAYOUT (1.3)
+ _NET_SHOWING_DESKTOP (1.3)
b. Root Window Messages
-----------------------
+ _NET_CLOSE_WINDOW (1.3)
- _NET_MOVERESIZE_WINDOW (1.3)
Metacity supports this message, but the specification is unclear on
the layout of the detail value, and as such it is #if 0'd in the code
+ _NET_WM_MOVERESIZE (1.3)
- _NET_RESTACK_WINDOW (1.3)
Metacity will raise or lower windows in response to this message,
but the sibling restack modes are not supported, and it is currently
#if 0'd in the code.
+ _NET_REQUEST_FRAME_EXTENTS (1.3)
c. Application Window Properties
--------------------------------
+ _NET_WM_NAME (1.3)
+ _NET_WM_VISIBLE_NAME (1.3)
Metacity does not set this property, but metacity will never display
a name different from _NET_WM_NAME
+ _NET_WM_ICON_NAME (1.3)
+ _NET_WM_VISIBLE_ICON_NAME (1.3)
Metacity does not set this property, but metacity will never display
a name different from _NET_WM_NAME
+ _NET_WM_DESKTOP (1.3)
+ _NET_WM_WINDOW_TYPE (1.3)
/ _NET_WM_STATE (1.3)
This property is read and updated according to the specification,
but see caveat below.
Metacity does not recognize separate vertical and horizontal
maximization states. Currently metacity will do a two-dimensional
maximization if either property is set.
See: http://bugzilla.gnome.org/show_bug.cgi?id=113601
Metacity doesn't implement viewports so _NET_WM_STATE_STICKY is
unimplemented.
+ _NET_WM_ALLOWED_ACTIONS (1.3)
Metacity keeps this hint up to date. The code is somewhat crufty
and should be rewritten, though it is functional.
See: http://bugzilla.gnome.org/show_bug.cgi?id=90420
+ _NET_WM_STRUT (1.3)
+ _NET_WM_STRUT_PARTIAL (1.3)
+ _NET_WM_ICON_GEOMETRY (1.3)
Metacity uses this property to draw minimize/restore animations
+ _NET_WM_ICON (1.3)
+ _NET_WM_PID (1.3)
+ _NET_WM_HANDLED_ICONS (1.3)
Metacity does not read or set this property. However, metacity
never manages iconified windows, and so has no need to do so.
+ _NET_WM_USER_TIME (1.3)
Metacity uses this property to prevent applications from stealing
focus if supported by the toolkit.
+ _NET_FRAME_EXTENTS (1.3)
If set in response to a _NET_REQUEST_FRAME_EXTENTS message received
prior to the window being mapped, this may be an estimate. This is,
however, expressly allowed by the specification.
d. Window Manager Protocols
---------------------------
+ _NET_WM_PING (1.3)
3) ICCCM Compliance
-------------------
TODO
View git blame Copy permalink