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xserver/dix
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Filename Latest commit message Latest commit date
Enrico Weigelt, metux IT consult c5780c4c35 dix: add per-screen close notify hook 
Right now, extension specific actions on screen closing implemented by wrapping
the ScreenRec's PositionWindow() proc pointer: the extensions are storing the
original pointer in their private data and putting in their own one. On each
call, their proc restores the original one, calls it, and switches back again.
When multiple extensions doing so, they're forming a kind of daisy chain.
(the same is done for lots of other procs)

While that approach is looking nice and elegant on the drawing board, it's
complicated, dangerous like a chainsaw and makes debugging hard, leading to
pretty blurred API borders.

This commit introduces a simple approach for letting extension hook into the
screen closing path safely, w/o having to care much about side effects with
the call chain. Extensions now can simply register their hook proc (and an
opaque pointer) and get called back - w/o ever having to mess with the
ScreenRec's internal structures. These hooks are called before the original
vector (usually handled by DDX/screen driver directly) is called.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
2025-06-12 16:44:41 +02:00
..
.gitignore
atom.c dix: unexport InitAtoms() and FreeAllAtoms() 2025-06-12 16:20:15 +02:00
atom_priv.h dix: unexport InitAtoms() and FreeAllAtoms() 2025-06-12 16:20:15 +02:00
BuiltInAtoms
callback_priv.h dix: make DeleteCallbackList() non-static and document it 2025-06-12 16:43:56 +02:00
closestr.h
color.c dix: drop unnecessary check on HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
colormap.c dix: unexport DeliverEvents() and fix return type 2025-06-12 16:18:40 +02:00
colormap_priv.h
cursor.c dix: NULL-protect AllocGlyphCursor() 2025-06-12 16:34:37 +02:00
cursor_priv.h
devices.c dix: devices: refine NULL checks in GetMaster() 2025-06-12 16:34:34 +02:00
dispatch.c dix: drop unused SetVendorRelease() 2025-06-12 16:20:19 +02:00
dispatch.h dix: drop unnecessary check on HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
display.c dix: add getter for display name 2025-02-11 19:13:01 +01:00
dix_priv.h dix: add per-screen close notify hook 2025-06-12 16:44:41 +02:00
dixfonts.c dix: dixfonts: explain analyzer false alarm on alleged free() of stack chunk 2025-06-12 16:34:20 +02:00
dixgrabs_priv.h dix: unexport non-public functions from dixgrabs.h and document prototypes 2024-10-10 13:50:57 +00:00
dixstruct_priv.h
dixutils.c dix: make DeleteCallbackList() non-static and document it 2025-06-12 16:43:56 +02:00
enterleave.c dix: protect against alloc failure in ‘DeviceFocusEvent() 2025-06-12 16:34:05 +02:00
enterleave.h dix: drop unnecessary check on HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
eventconvert.c dix: limit checks to MAX_VALUATORS when generating Xi events 2024-10-28 05:38:25 +00:00
eventconvert.h
events.c dix: make DeviceEnterLeaveEvent() anaylzer-friendly 2025-06-12 16:34:29 +02:00
exevents_priv.h XI: unexport XIPropToInt() and XIPropToFloat() 2025-06-12 16:25:48 +02:00
extension.c dix: clear free()ed pointers on CloseDownExtensions() 2025-06-12 16:34:39 +02:00
gc.c dix: replace FreeDefaultStipple() 2025-06-12 16:43:51 +02:00
gc_priv.h dix: replace FreeDefaultStipple() 2025-06-12 16:43:51 +02:00
generate-atoms dix: replace AtomError() by better messages 2025-06-12 16:20:12 +02:00
gestures.c dix: NULL-protection in GestureAddRegularListener() 2025-06-12 16:34:17 +02:00
getevents.c dix: rename IsFloating() to InputDevIsFloating() 2025-06-12 16:19:40 +02:00
globals.c dix: add getter for display name 2025-02-11 19:13:01 +01:00
glyphcurs.c dix: use dixDestroyPixmap() instead of direct driver call 2025-02-12 17:48:30 +01:00
grabs.c dix: rename IsMaster to InputDevIsMaster() 2025-06-12 16:19:33 +02:00
input_priv.h dix: unexport LastEventTimeToggleResetAll() 2025-06-12 16:20:06 +02:00
inpututils.c dix: protect input_option_set_value() from NULL pointer 2025-06-12 16:34:47 +02:00
main.c dix: consolidate screen destruction in dixFreeScreen() 2025-06-12 16:43:54 +02:00
meson.build dix: add per-screen window destructor hook 2025-06-12 16:43:59 +02:00
pixmap.c dix: use dixDestroyPixmap() instead of direct driver call 2025-02-12 17:48:30 +01:00
privates.c dix: drop unnecessary check on HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
property.c dix: move props into WindowRec and fix potential NULL deref 2025-06-12 16:34:03 +02:00
property_priv.h
protocol.txt
ptrveloc.c XI: unexport XIPropToInt() and XIPropToFloat() 2025-06-12 16:25:48 +02:00
ptrveloc_priv.h
region.c dix: region: turn xfreeData() into inline func and add checks 2025-06-12 16:34:31 +02:00
registry.c dix: drop unnecessary check on HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
registry_priv.h
reqhandlers_priv.h dix: unexport events related request handlers 2025-06-12 16:16:45 +02:00
resource.c dix: unexport and document MarkClientException() 2025-06-12 16:17:42 +02:00
screen.c dix: add per-screen close notify hook 2025-06-12 16:44:41 +02:00
screen_hooks.c dix: add per-screen close notify hook 2025-06-12 16:44:41 +02:00
screen_hooks_priv.h dix: add per-screen close notify hook 2025-06-12 16:44:41 +02:00
screenint_priv.h
selection.c dix: drop unnecessary check on HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
stubmain.c
swaprep.c dix: drop unnecessary check on HAVE_DIX_CONFIG_H 2024-10-10 13:38:31 +00:00
swapreq.c dix: unexport events related request handlers 2025-06-12 16:16:45 +02:00
tables.c include: drop obsolete dixevents.h 2025-06-12 16:17:35 +02:00
touch.c dix: touch: NULL-protection in TouchAddRegularListener() 2025-06-12 16:34:12 +02:00
window.c dix: add per-screen window position notify hook 2025-06-12 16:44:33 +02:00