2006-10-01 Elijah Newren <newren gmail com>
* src/*.[ch]: Stick an emacs comment directive at the beginning of
all the code files so that people using emacs will be more likely
to get coding style correct in their patches. We still need a
similar vi directive. #358866
2006-09-18 Elijah Newren <newren gmail com>
Partial audit to fix timestamp usage. One step towards fixing
#355180; see important comments in that bug.
* src/core.[ch] (meta_core_unshade, meta_core_shade):
* src/delete.c (meta_window_present_delete_dialog,
delete_ping_timeout_func):
* src/display.[ch] (meta_display_open, meta_display_close,
event_callback, meta_display_begin_grab_op,
process_selection_clear, meta_display_unmanage_screen,
meta_display_unmanage_windows_for_screen):
* src/frames.c (meta_frames_button_press_event):
* src/keybindings.c (handle_toggle_shade):
* src/main.c (main):
* src/screen.[ch] (update_num_workspaces, meta_screen_new,
meta_screen_free, prefs_changed_callback):
* src/window.[ch] (meta_window_free, finish_minimize,
implement_showing, meta_window_show, meta_window_maximize,
meta_window_make_fullscreen_internal,
meta_window_unmake_fullscreen, meta_window_shade,
meta_window_unshade, window_activate, send_sync_request,
meta_window_client_message, menu_callback,
meta_window_update_keyboard_resize):
Remove usage of CurrentTime, meta_display_get_current_time() and
meta_display_get_current_time_roundtrip() where possible, or
document why it isn't possible, or at very least add a FIXME with
some explanation of my laziness and what needs to be done.
2006-08-07 Elijah Newren <newren gmail com>
* src/frames.c (meta_frames_button_press_event): Patch from Chris
Ball to not minimize in response to double clicks on the titlebar
when minimiziation should not be allowed. #347377
2006-08-07 Elijah Newren <newren gmail com>
Patch from Björn Lindqvist to fix button lighting with dragged
clicks. #321474.
* src/frames.c (meta_frames_button_press_event): update the
prelit_control, (meta_frames_button_release_event): some code
refactoring to simplify things a bit, and make sure to update the
prelit_control
2006-08-07 Thomas Thurman <thomas@thurman.org.uk>
* src/frames.h: add new MetaButtonSpace struct; use it for
close_rect, max_rect, min_rect and menu_rect.
* src/frames.c (control_rect, get_control): modify to support
the new fields in MetaButtonSpace.
* src/theme.c (meta_frame_layout_get_borders, rect_for_function,
meta_frame_layout_calc_geometry, button_rect): add support for
the new fields in MetaButtonSpace.
2006-04-19 Björn Lindqvist <bjourne@gmail.com>
* src/frames.c (struct CachedPixels, meta_frames_destroy,
invalidate_cache, generate_pixmap, populate_cache,
cached_pixels_draw, meta_frames_expose_event,
meta_frames_paint_to_drawable):
Replace while loops iterating over sequences with for loops. Also,
replace the attributes in the CachedPixels struct with a list of
four CachedFramePiece:s, this allows iteration over the four
pixmaps instead of treating each one separately. Fixes#338359.
2006-01-21 Elijah Newren <newren gmail com>
* src/common.h (enum MetaActionDoubleClickTitlebar):
* src/frames.c (meta_frames_button_press_event):
* src/prefs.c (action_double_click_titlebar_from_string):
* src/metacity.schemas.in:
Patch from Dick Marinus to add a minimize
double-click-titlebar-action; slightly modified to also include a
none action. #300210.
2006-01-10 Elijah Newren <newren@gmail.com>
Add a raise on click option, basically only because all the major
distros are patching it in anyway. See #326156.
* src/metacity.schemas.in: add the new gconf key and explanation
* src/prefs.[ch] (#define KEY_RAISE_ON_CLICK, static gboolean
raise_on_click, update_raise_on_click, meta_prefs_init,
change_notify, meta_prefs_get_raise_on_click,
meta_preference_to_string):
Add all the normal preference handling stuff for this new
raise-on-click option.
* src/core.c (meta_core_show_window_menu):
* src/display.c (event_callback, meta_display_begin_grab_op):
* src/window.c (window_activate, meta_window_configure_request, ):
Only raise the window if in raise_on_click mode.
* src/display.c (meta_display_begin_grab_op,
meta_display_end_grab_op, meta_display_check_threshold_reached):
* src/display.h (struct MetaDisplay):
* src/window.c (meta_window_handle_mouse_grab_op_event):
if not in raise-on-click mode only raise on button release if the
click didn't start a move or resize operation; needs a few extra
MetaDisplay fields to handle this
* src/core.c (meta_core_user_lower_and_unfocus):
no need to do the MRU shuffling if not maintaining the stacking
order == MRU order invariant
* src/frames.c (meta_frames_button_press_event):
* src/window.c (meta_window_begin_grab_op):
remove an unneeded window raising that is already handled elsewhere
2005-11-18 Elijah Newren <newren@gmail.com>
Merge of all the changes on the constraints_experiments branch.
This is just a summary, to get the full ChangeLog of those
changes (approx. 2000 lines):
cvs -q -z3 update -Pd -r constraints_experiments
cvs -q -z3 diff -pu -r CONSTRAINTS_EXPERIMENTS_BRANCHPOINT ChangeLog
Bugs fixed:
unfiled - constraints.c is overly complicated[1]
unfiled - constraints.c is not robust when all constraints
cannot simultaneously be met (constraints need to be
prioritized)
unfiled - keep-titlebar-onscreen constraint is decoration
unaware (since get_outermost_onscreen_positions()
forgets to include decorations)
unfiled - keyboard snap-moving and snap-resizing snap to hidden
edges
109553 - gravity w/ simultaneous move & resize doesn't work
113601 - maximize vertical and horizontal should toggle and be
constrained
122196 - windows show up under vertical panels
122670 - jerky/random resizing of window via keyboard[2]
124582 - keyboard and mouse snap-resizing and snap-moving
erroneously moves the window multidimensionally
136307 - don't allow apps to resize themselves off the screen
(*cough* filechooser *cough*)
142016, 143784 - windows should not span multiple xineramas
unless placed there by the user
143145 - clamp new windows to screensize and force them
onscreen, if they'll fit
144126 - Handle pathological strut lists sanely[3]
149867 - fixed aspect ratio windows are difficult to resize[4]
152898 - make screen edges consistent; allow easy slamming of
windows into the left, right, and bottom edges of the
screen too.
154706 - bouncing weirdness at screen edge with keyboard moving
or resizing
156699 - avoid struts when placing windows, if possible (nasty
a11y blocker)
302456 - dragging offscreen too restrictive
304857 - wireframe moving off the top of the screen is misleading
308521 - make uni-directional resizing easier with
alt-middle-drag and prevent the occasional super
annoying resize-the-wrong-side(s) behavior
312007 - snap-resize moves windows with a minimum size
constraint
312104 - resizing the top of a window can cause the bottom to
grow
319351 - don't instantly snap on mouse-move-snapping, remove
braindeadedness of having order of releasing shift and
releasing button press matter so much
[1] fixed in my opinion, anyway.
[2] Actually, it's not totally fixed--it's just annoying
instead of almost completely unusable. Matthias had a
suggestion that may fix the remainder of the problems (see
http://tinyurl.com/bwzuu).
[3] This bug was originally about not-quite-so-pathological
cases but was left open for the worse cases. The code from
the branch handles the remainder of the cases mentioned in
this bug.
[4] Actually, although it's far better there's still some minor
issues left: a slight drift that's only noticeable after
lots of resizing, and potential problems with partially
onscreen constraints due to not clearing any
fixed_directions flags (aspect ratio windows get resized in
both directions and thus aren't fixed in one of them)
New feature:
81704 - edge resistance for user move and resize operations;
in particular 3 different kinds of resistance are
implemented:
Pixel-Distance: window movement is resisted when it
aligns with an edge unless the movement is greater than
a threshold number of pixels
Timeout: window movement past an edge is prevented until
a certain amount of time has elapsed during the
operation since the first request to move it past that
edge
Keyboard-Buildup: when moving or resizing with the
keyboard, once a window is aligned with a certain edge
it cannot move past until the correct direction has
been pressed enough times (e.g. 2 or 3 times)
Major changes:
- constraints.c has been rewritten; very few lines of code from
the old version remain. There is a comment near the top of
the function explaining the basics of how the new framework
works. A more detailed explanation can be found in
doc/how-constraints-works.txt
- edge-resistance.[ch] are new files implementing edge-resistance.
- boxes.[ch] are new files containing low-level error-prone
functions used heavily in constraints.c and edge-resistance.c,
among various places throughout the code. testboxes.c
contains a thorough testsuite for the boxes.[ch] functions
compiled into a program, testboxes.
- meta_window_move_resize_internal() *must* be told the gravity
of the associated operation (if it's just a move operation,
the gravity will be ignored, but for resize and move+resize
the correct value is needed)
- the craziness of different values that
meta_window_move_resize_internal() accepts has been documented
in a large comment at the beginning of the function. It may
be possible to clean this up some, but until then things will
remain as they were before--caller beware.
- screen and xinerama usable areas (i.e. places not covered by
e.g. panels) are cached in the workspace now, as are the
screen and xinerama edges. These get updated with the
workarea in src/workspace.c:ensure_work_areas_validated()
Sun Jun 26 11:19:18 2005 Soeren Sandmann <sandmann@redhat.com>
* src/frames.c: Add a cache of pixmaps for recently exposed frame
areas. Makes metacity a bit faster when dragging windows around.
See bug 141813.
2005-06-10 Ryan Lortie <desrt@desrt.ca>
* src/frames.c: Prevent using the address of a local variable
as a hash key. (Bug #307209)
* src/xprops.c (meta_prop_get_values): Fix a small leak in the
case of a SYNC_COUNTER property value and HAVE_XSYNC not
defined. (Bug #307214)
2004-10-04 Elijah Newren <newren@math.utah.edu>
Fix a variety of focus race conditions in all focus modes, or at
least make them harder to trigger (fixes#152000)
* src/core.[ch] (meta_core_user_lower_and_unfocus): add a
timestamp parameter; pass it along to
meta_workspace_focus_default_window
* src/display.[ch] (meta_display_get_current_time_roundtrip): new
function
* src/display.c (event_callback): pass a timestamp to the
meta_workspace_activate and meta_workspace_focus_default_window
function calls
* src/frames.c (meta_frames_button_press_event): pass a timestamp
to meta_core_user_lower_and_unfocus
* src/keybindings.c (handle_activate_workspace): pass a timestamp
to meta_workspace_activate, (process_workspace_switch_grab): pass
a timestamp to meta_workspace_focus_default_window and
meta_workspace_activate, (handle_toggle_desktop): pass a timestamp
to meta_workspace_focus_default_window,
(do_handle_move_to_workspace): pass a timestamp to
meta_workspace_activate_with_focus, (handle_workspace_switch):
meta_workspace_activate
* src/screen.c (meta_screen_new): pass a timestamp to
meta_workspace_activate
* src/window.c (meta_window_free): pass a timestamp to
meta_workspace_focus_default_window, (idle_calc_showing): don't
increment the focus sentinel here, (meta_window_minimize): pass a
timestamp to meta_workspace_focus_default_window,
(meta_window_client_message), pass a timestamp to
meta_workspace_focus_default_window
* src/workspace.h (meta_workspace_activate): add timestamp
parameter, (meta_workspace_activate_with_focus): add timestamp
parameter, (meta_workspace_focus_default_window): add timestamp
parameter
* src/workspace.c (meta_workspace_focus_mru_window): make this
function take a timestamp and use it for meta_window_focus or
XSetInputFocus, (meta_workspace_activate_with_focus): make this
function take a timestamp and pass it along to meta_window_focus
and meta_workspace_focus_default_window,
(meta_workspace_activate): make this function take a timestamp and
pass it to meta_workspace_activate_with_focus),
(meta_workspace_focus_default_window): make this function take a
timestamp, warn if its 0 but try to handle that case sanely, and
pass the timestamp on to meta_window_focus or
meta_workspace_focus_mru_window or XSetInputFocus
2004-09-15 Elijah Newren <newren@math.utah.edu>
Patch from Ken Harris in #135786 to focus a new default window
when lowering via middle-click on the frame.
* src/core.[hc], src/frames.c: rename meta_core_user_lower to
meta_core_user_lower_and_unfocus
* src/core.c (meta_core_user_lower_and_unfocus): if in
click-to-focus mode then also move the window to the back of the
mru list and focus the new default window for the active workspace
2004-08-27 Havoc Pennington <hp@redhat.com>
* src/compositor.c (meta_compositor_new): disable NameWindowPixmap
stuff always for now, it seemed kind of busted
(paint_screen): don't grab the server during repaint, adds to the
speed, though only slightly.
* src/frames.c (meta_frames_set_window_background): factor out all
the set_background stuff to one function; disable setting
background to transparent, because it breaks existing themes. We
need to add a flag in the theme XML file to say "start me with a
transparent background"
2004-08-26 Havoc Pennington <hp@redhat.com>
* configure.in: move the have_xrender variable initialization up
in the file since it can be set as part of composite check
2004-08-19 Havoc Pennington <hp@redhat.com>
Fixes from Rich Wareham
* src/display.h (struct _MetaDisplay): add render extension check
to the display
* src/display.c: check for render
* configure.in: don't build compositing manager by default, don't
want any nasty surprises; check for render separately from
compositing manager
* src/frame.c: use an ARGB visual when available for the window
frame, so we can be all cool-ass
2003-11-24 Havoc Pennington <hp@redhat.com>
* src/display.c (meta_display_begin_grab_op): add an event_serial
argument and use it when the pointer is already grabbed
automatically on the button press. May fix bug #126871
2003-10-12 Havoc Pennington <hp@redhat.com>
Merge reduced_resources mode patch from the branch. Offers
wireframe and no-animations.
* src/window.c (implement_showing): no animation if we are
in reduced resources mode
* src/prefs.c: add REDUCED_RESOURCES pref
* src/window.c (meta_window_update_keyboard_resize): fix to
modify grab_anchor_window_pos to grab_wireframe_rect if
appropriate instead of window->rect
* src/display.h (struct _MetaDisplay): add grab_start_serial used
to avoid responding to events that occurred prior to the grab
initialization.
Still broken in various ways, specifically EnterNotify that
occurred prior to XGrabPointer is processed as if it occurred
after.
* src/window.c (meta_window_update_keyboard_move): add this
instead of meta_window_warp_pointer() crack
* src/effects.c (meta_effects_update_wireframe): draw a kind of
grid for the wireframe, instead of just a rectangle, like twm
* src/screen.c (meta_screen_new): line width of 3 for the XOR gc
"Reduced resources" mode based on wireframe patch from
Erwann Chenede. Still pretty buggy.
* src/keybindings.c (process_keyboard_move_grab)
(process_keyboard_resize_grab): add gruesome wireframe hacks
* src/display.c (meta_display_end_grab_op): end wireframe
(meta_display_begin_grab_op): begin wireframe
* src/effects.c (meta_effects_end_wireframe)
(meta_effects_update_wireframe, meta_effects_begin_wireframe):
routines to draw the wireframe stuff
* src/window.c (window_should_be_showing): hide window when
doing wireframe, commented out as it breaks grab
* src/window.c (meta_window_refresh_resize_popup): handle wireframe
* src/screen.c (meta_screen_new): create a screen->root_xor_gc
for use in drawing wireframes
* src/frames.c (meta_frames_push_delay_exposes): repaint
everything before we delay
2003-08-16 Havoc Pennington <hp@pobox.com>
Patch from Soeren Sandmann #108926 to improve opaque resize
* src/frame.c (meta_window_ensure_frame): new function
* src/ui.c (meta_ui_create_frame_window): new function to create
a frame with GDK, so that GDK's invalidation etc. work properly
2003-05-16 Havoc Pennington <hp@redhat.com>
* src/frames.c (meta_frames_paint_to_drawable): fix for
bug #104018 from David Santiago, change button state to
normal while it's being pressed if you move the mouse
outside it. Do this by tracking prelit_control for whether
to draw a button as active, not just for whether to draw
it as prelit.
(meta_frames_motion_notify_event): also update prelit_control
while clicking a button
2003-01-05 Havoc Pennington <hp@pobox.com>
* src/frames.c (meta_frames_apply_shapes): put in the
HAVE_GTK_MULTIHEAD conditionals so we build with GTK 2.0
2003-01-05 Havoc Pennington <hp@pobox.com>
* src/frames.c (meta_frames_apply_shapes): handle
the client having a shape mask, fixes#101806
* src/core.c (meta_core_get_client_xwindow): new function
* src/frame.c, src/frame.h: keep a flag for whether we need to
update the frame shape
* src/window.c (meta_window_new): select for ShapeNotify
* src/display.h, src/display.c: actually query the shape
extension, instead of just using it all over the place.
* src/prefs.c (update_application_based): don't let people turn on
application_based, as it just causes funky bugs. We can reenable
the pref when/if it ever does something useful.
2002-12-01 Havoc Pennington <hp@pobox.com>
* src/frames.c (get_control): rearrange this function a bit, so
that we return CONTROL_TITLE for anything above the bottom of the
titlebar, in the fallback case where no other control was found.
Also, don't return RESIZE_N for title rect above the top resize
size, unless the window is resizable.
(meta_frames_button_press_event): only start a move when clicking
control TITLE, not control NONE. This way you don't start moving
a nonresizable window if you click its edges.
2002-10-18 Havoc Pennington <hp@redhat.com>
* src/prefs.c, src/frames.c: add "what happens when you double
click the titlebar" setting, patch from Sean Middleditch bug
#95625. This is basically an "add Windows emulation mode" patch.
2002-10-11 Havoc Pennington <hp@redhat.com>
* src/display.c (event_callback): don't raise window on button 2
click, only on button 1 and button 3.
* src/frames.c (meta_frames_button_press_event): lower on button 2
press on frame
* src/core.c (meta_core_user_lower): new function
2002-10-03 Havoc Pennington <hp@pobox.com>
Button-reordering patch. Has all the code except actually
installing a gconf schema and reading the gconf key in prefs.c.
metacity-theme-viewer displays the button layouts for testing
themes.
* src/preview-widget.c (meta_preview_size_request): make up a
width/height if no child widget
* src/prefs.c (meta_prefs_get_button_layout): new function
* src/frames.c: get the button layout from prefs and
use it when drawing
* src/theme.c (meta_frame_layout_calc_geometry): enhance to be
able to lay out buttons in different arrangements
(button_rect): draw the new button background rectangles
(meta_theme_draw_frame): require a button layout argument
(meta_theme_calc_geometry): pass in the button layout
* src/preview-widget.h: mod to handle button layouts
* src/theme-viewer.c: mod to handle button layouts
2002-09-03 Havoc Pennington <hp@pobox.com>
* src/frames.c (meta_frames_update_prelit_control): don't filter
out prelight for unmaximize button. #83860
(meta_frames_paint_to_drawable): handle unmaximize here as well
2002-08-20 Havoc Pennington <hp@redhat.com>
* src/frames.c (get_control): if in the title rect check for y
<= TOP_RESIZE_HEIGHT
* src/display.c (meta_spew_event): put x/y coordinates in spew for
enter/leave notify
* src/frames.c (meta_frames_motion_notify_event): move cursor
changing from here to update_prelit_control so it happens on enter
notify as well
(get_control): change test "y < TOP_RESIZE_HEIGHT" to
"y <= TOP_RESIZE_HEIGHT"
* src/Makefile.am (EXTRA_DIST): include .in files in EXTRA_DIST
2002-08-04 Havoc Pennington <hp@redhat.com>
* src/frames.c (meta_frames_paint_to_drawable): init button
states for the button backgrounds
* src/themes/Atlanta/metacity-theme-1.xml: adapt to work correctly
with button repositioning
2002-08-04 Havoc Pennington <hp@redhat.com>
* src/frames.c (meta_frames_button_press_event): raise/focus
on click, even if the click was on the client area
(this makes Alt+button1 raise windows again, yay)
* src/stack.c (compute_layer): put panels in the DOCK layer always
(keep them on top of other windows). Still sloppy-focus raised
with respect to other docks.
* configure.in: remove -Wshadow for now as GTK headers make all
kinds of noise with it.
2002-07-24 Havoc Pennington <hp@redhat.com>
* src/theme-parser.c (meta_theme_load): look for themes in
~/.themes/NAME/metacity-1/ and datadir/themes/NAME/metacity-1
instead of the old locations.
* src/themes/Makefile.am: install themes to
datadir/themes/NAME/metacity-1/ to match how GTK works, breaking
third-party themes yet again! woot!
2002-07-23 Havoc Pennington <hp@redhat.com>
* src/themes/Makefile.am (THEMES): put Gorilla back in the build
* src/themes/Gorilla/metacity-theme-1.xml,
src/themes/Crux/metacity-theme-1.xml: fixes from
Sebastien Delestaing so that these themes work properly with
different font sizes.
* src/frames.c (get_control): patch from Balamurali Viswanathan
for #81984 (resize titlebar from the top not the bottom)
2002-06-09 Havoc Pennington <hp@pobox.com>
* src/frames.c (meta_frames_button_press_event): don't raise/focus
the window if minimize/close are clicked, patch from Gaute
Lindkvist #75460
2002-06-01 Havoc Pennington <hp@pobox.com>
* src/frames.c (meta_frames_finalize): move the remove_listener
to finalize instead of destroy, thanks to Jayaraj for tracking
down the bug.
2002-05-30 Havoc Pennington <hp@redhat.com>
* src/main.c (main): verbose-log on startup whether we were
compiled with various extensions
* src/display.c (meta_display_queue_retheme_all_windows): reapply
shape mask when changing themes, sucks to do it here though, makes
theme changing slower. Needs fixing.
* src/theme-parser.c (parse_toplevel_element): parse rounded
corner options to frame_geometry
* src/frames.c (meta_frames_apply_shapes): apply rounded corners
if requested by the theme
* configure.in (HAVE_SHAPE): check for shape extension
2002-05-28 Havoc Pennington <hp@pobox.com>
Patch from Erwann Chenede for raise_or_lower keybinding
* src/display.c, src/common.h: POINT_IN_RECT moved to a common
location, removed from here
(meta_rectangle_intersect): move here and make it public
* src/prefs.c: add raise_or_lower keybinding
* src/stack.c (meta_stack_get_below, meta_stack_get_above): add an
arg to only get windows within the same layer
* src/keybindings.c (handle_raise_or_lower): add handling for a
"raise window if obscured, else lower" keybinding
2002-05-23 Jayaraj Rajappan <jayaraj.rajappan@wipro.com>
* src/display.c (event_callback): fix for bugzilla bug #72314,
filter out LeaveNotify caused by grabs when in mouse focus mode.
2002-05-09 Havoc Pennington <hp@redhat.com>
* src/frames.c (show_tip_now): DefaultScreen() returns the screen
number not Screen*
* src/frame.c (meta_frame_sync_to_window): immediately repaint
frame whenever we resize it, if we're inside a grab operation.
* src/frames.c (meta_frames_repaint_frame): new function
* src/window.c (meta_window_new): initialize window's colormap
(meta_window_notify_focus): install the colormap for a window when
it gets focus, uninstall on unfocus.
* src/window.h (struct _MetaWindow): store window's colormap
* src/display.c (event_callback): note changes to window colormap
* src/frame.c (EVENT_MASK): add ColormapChangeMask
2002-05-07 Anders Carlsson <andersca@gnu.org>
* src/display.c: (meta_display_open), (event_callback),
(meta_display_update_show_desktop_hint):
* src/display.h:
* src/screen.c: (set_supported_hint):
Fix atom name; it's _NET_SHOW_DESKTOP, not
_NET_WM_SHOW_DESKTOP.
* src/frames.c: (meta_frames_unmanage_window):
Restore the mouse cursor to default when unmanaging a window.
2002-05-04 Havoc Pennington <hp@pobox.com>
* src/frames.c (meta_frames_paint_to_drawable): chop out the
portion of the region that's outside the screen.
* src/core.c (meta_core_get_screen_size): new function
(meta_core_get_frame_extents): new function
2002-05-04 Havoc Pennington <hp@pobox.com>
* src/frames.c (meta_frames_init): disable automatic GTK double
buffering, since it resulted in gigantic backing pixmaps the size
of the whole screen.
(meta_frames_paint_to_drawable): change to take a region argument;
punch the client area out of the expose region, then iterate over
rectangles in the region and draw each, manually doing
begin_paint_rect. Results in 4 long thin backing pixmaps
per frame repaint, instead of one large backing pixmap.
Suggested by Owen.
2002-03-06 Havoc Pennington <hp@redhat.com>
* src/frames.c (meta_frames_manage_window): use hash_table_replace
instead of g_hash_table_insert
* src/main.c (main): only enable verbose/debug if you set
METACITY_VERBOSE/METACITY_DEBUG
* src/util.c (ensure_logfile): only use a log file if
METACITY_USE_LOGFILE is set
* src/display.c (meta_display_for_x_display): add warning if
MetaDisplay isn't found
* src/window.c (meta_window_free): add an assertion that we
successfully cleared the grab window
