Wed May 24 16:37:11 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-window.c (private_metacity_window): New function
* src/c-window.c (meta_comp_window_refresh_attrs): Map metacity's
own windows directly.
Wed May 24 14:36:42 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-window.c (meta_comp_window_{freeze,thaw}_stack: Add a
stack-freeze feature to CWindow.
* src/c-screen.c (meta_comp_screen_restack): Don't restack if the
window is frozen.
Wed May 24 12:57:32 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-window.c (meta_comp_window_free): return TRUE when the
window is actually freed.
* src/compositor.c (do_effect): Disable updating before exploding
the window.
* src/c-window.c: Make MetaCompWindow refcounted.
* src/c-window.[ch]: New functions meta_comp_window_{show,hide}
* src/c-screen.c (meta_comp_screen_unmap): Call
meta_comp_window_hide() instead of directly setting the viewable
status of the node.
* src/c-screen.c (meta_comp_screen_remove_window): Only remove the
window when it is actually freed.
Tue May 23 16:36:04 2006 Søren Sandmann <sandmann@redhat.com>
* src/compositor.c (do_effect): Also use explode when windows close.
* src/c-window.c (meta_comp_window_explode): Add refcounting to
comp window, and use it in the explosion effect
* src/effects.h (struct MetaEffect): Add new MetaCloseEffect.
* src/display.c (event_callback): Run it from the UnmapNotify
event handler.
Tue May 23 15:23:58 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-window.c (send_sync_request): New function to send a sync
request to newly mapped windows.
(on_request_alarm): Show the window here.
Mon May 22 17:35:52 2006 Søren Sandmann <sandmann@redhat.com>
* src/effects.[ch]: Beginning of new layer that abstracts
transition effects.
New functions:
(meta_push_effect_handler): Install an effect handler
(meta_pop_effect_handler): Remove last effect handler
(meta_effect_run_minimize): Create a minimize effect and pass it
to the handler.
(meta_effect_end): Called by handler when the effect is finished.
* src/compositor.c: Move explosion code form there to src/c-window.c.
* src/c-screen.c: Delete explosion related code.
2006-05-22 Björn Lindqvist <bjourne@gmail.com>
* common.h (enum MetaCursor):
* display.c (meta_display_create_x_cursor): Make mouse cursor when
moving windows become a hand. Fixes#337376.
2006-05-18 Björn Lindqvist <bjourne@gmail.com>
* resizepopup.c: Remove the unused attributes resize_gravity,
width_inc, height_inc, min_width, min_height, frame_left,
frame_right, frame_top, frame_bottom, tick_origin_x, tick_origin_y
from the MetaResizePopup struct. Delete all code that references
those attributes.
2006-05-15 Elijah Newren <newren gmail com>
Revert the accessibility module loading workaround from Gnome
2.6, since gtk+ has long since fixed this for us. #123372.
* src/Makefile.am: remove METACITY_LIBDIR define
* src/main.c (find_accessibility_module,
accessibility_invoke_module, accessibility_invoke, main): remove
the first three of these functions and all calls to them
* src/tabpopup.c (meta_ui_tab_popup_new): not sure if this part of
120025 needed to be reverted but doing the reversion, if wrong, is
the best way to get someone from the accessibility team to scream,
er, I mean comment. ;-)
2006-05-15 Elijah Newren <newren gmail com>
* src/screen.c (reload_xinerama_infos): Patch from
jylefort@FreeBSD.org to prevent a crash when changing resolution.
Fixes#340847.
2006-05-15 Björn Lindqvist <bjourne@gmail.com>
* places.[ch] (intcmp, window_get_edges,
get_windows_showing_on_same_screen, get_vertical_edges,
get_horizontal_edges, meta_window_find_next_vertical_edge,
meta_window_find_next_horizontal_edge,
meta_window_find_nearest_vertical_edge,
meta_window_find_nearest_horizontal_edge): Remove the preceeding
functions as they are all obsoleted by the new edge-resistance
stuff. Fixes#341561.
Fri May 5 12:50:58 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-window.c (has_counter): Some experimental code to handle
sync counter notifications on a window.
* src/c-screen.c (meta_comp_screen_add_window): Pass a MetaDisplay
2006-04-25 Elijah Newren <newren gmail com>
Clear _NET_WM_VISIBLE_NAME (and the ICON_ equivalent) when no
longer being used. Fixes#330671.
* src/window.[ch] (struct MetaWindow): new
using_net_wm_visible_name and using_net_wm_visible_icon_name bits,
(meta_window_new_with_attrs): initialize these new bits to false
* src/window-props.c (set_title_text, set_window_title, set_icon_title):
if the _NET_WM_VISIBLE_(ICON_)NAME property was previously set but
doesn't need to be this time, make sure to clear it
Thu May 4 13:30:04 2006 Søren Sandmann <sandmann@redhat.com>
* src/ui.h: Delete unused META_PRIORITY_COMPOSITE
* src/ui.c: Delete argument from meta_ui_get_display().
* src/c-window.c: Remove the xid->window hashtable and associated
code.
* src/c-screen.[ch]: Rename MetaScreenInfo to MetaCompScreen. Put the
xid->windows table here instaed of as a static variable. Also make
sure that CompWindows are freed when the screen is unredirected.
* src/display.c: Delete non USE_GDK_DISPLAY case, as it didn't
work and hasn't been compiled for a long time.
* src/display.[ch] (meta_display_open): Remove argument as it was
always NULL (and couldn't possibly be anything else in the
USE_GDK_DISPLAY case).
Tue May 2 17:12:54 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-window.[ch]: New files
* src/c-screen.c: Move WindowInfo struct to new c-window.[ch]
files. Delete various bits of obsolete, commented-out code.
Fri Apr 28 12:53:23 2006 Søren Sandmann <sandmann@redhat.com>
* src/core.c (get_window): New function.
* src/core.c: Use get_window() instead of cutted-and-pasted code
all over the place.
2006-04-25 Elijah Newren <newren gmail com>
* NEWS: 2.15.1 release
* configure.in: belated post-release version bump to 2.15.1
* src/Makefile.am: Include boxes.h so that control-center won't
fail to build #339708.
2006-04-19 Thomas Andersen <phomes@gmail.com>
* src/window-props.c (reload_transient_for): warn and ignore if
transient_for is set to a non-top-level window. Fixes#335524.
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.
2006-04-18 Björn Lindqvist <bjourne@gmail.com>
* makefile.am: Add boxes.{c,h} to libmetacity_private
* src/theme-parser.c (check_expression):
* src/theme-viewer.c (run_position_expression_tests):
Use meta_rect ().
* src/theme.c: Replace while loops iterating over sequences with
for loops.
* src/theme.c, src/theme.h (struct _MetaPositionExprEnv,
meta_draw_op_draw, meta_draw_op_list_draw,
meta_theme_draw_menu_icon): Use MetaRectangles in function
prototypes instead of x, y, with, height ints where applicable.
2004-04-17 Thomas Thurman <thomas@thurman.org.uk>
* keybindings.c (count_bindings, rebuild_binding_table):
* prefs.c (change_notify, screen_bindings,
window_bindings, init_bindings, update_binding,
find_and_update_list_binding, update_list_binding,
meta_prefs_get_window_binding): Allow any keybinding pref
to be specified either with <foo>, a string, or <foo>_list,
a list of strings, or both. Fixes#164831.
2006-04-16 Elijah Newren <newren gmail com>
Patch from Dan Sanders to fix#334899.
* window.c (meta_window_new_with_attrs): Unminimize ancestors of
new windows when mapped; this prevents e.g. confirmation windows
from causing applications to appear locked when closing via the
window list.
2006-04-15 Elijah Newren <newren gmail com>
Patch from Dan Sanders to fix#335076.
* src/core.c (meta_core_maximize, meta_core_toggle_maximize,
meta_core_unmaximize):
* src/window.c (meta_window_client_message):
Raise windows on maximize/unmaximize.
2006-04-14 Thomas Thurman <thomas@thurman.org.uk>
Add a tabbing function, bound to alt-f6 by default, to cycle
through the windows of the current application. Fixes#164831.
* src/common.h: two new MetaGrabOpts values for group switching
* src/display.c (ping_data_free, meta_display_in_grab_op,
IN_TAB_CHAIN): adapt to new MetaGrabOpts
* src/display.h: new enum value for MetaTabList for group switching
* src/keybindings.c (meta_display_process_key_event):
adapt to new MetaGrabOpts
(process_tab_grab): adapt to new MetaGrabOpts, and use switch
statement for cancelling instead of if statement
* src/metacity.schemas.in: new keybindings
* src/prefs.c, src/prefs.h: handle new keybindings
* src/window.h: define META_WINDOW_IN_GROUP_TAB_CHAIN macro
2006-04-12 Elijah Newren <newren gmail com>
Patch from Ron Yorston to add a focus_new_windows option. Default
is 'smart' (focus by default but normal focus-stealing-prevention
can kick in); 'strict' is current other choice (like 'smart'
except that programs launched by the terminal will not be
focused). Fixes remainder of #326159. Should also close#152004
and a bunch of others.
* src/common.h:
Add a MetaFocusNewWindows enum giving the current types allowed
* src/display.h:
Update docs on allow_terminal_deactivation to note that it is only
relevant when focus_new_windows is 'strict'
* src/prefs.c:
* src/prefs.h:
* src/metacity.schemas.in: add the new gconf key and explanation
* src/prefs.[ch] (#define KEY_FOCUS_NEW_WINDOWS, static gboolean
focus_new_windows, update_focus_new_windows, meta_prefs_init,
change_notify, meta_prefs_get_focus_new_windows,
meta_preference_to_string):
Add all the normal preference handling stuff for this new
focus-new-windows option.
* src/window.c (window_state_on_map, meta_window_set_user_time):
Don't focus windows launched from a terminal
Mon Apr 10 16:44:51 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-screen.c (is_menu): Check if the window is a menu and make
it 90% opaque in that case.
* src/c-screen.c (claim_selection): Handle CM_Sn selection
properly.
* src/c-screen.c: Remove debug spew
* src/screen.c (meta_screen_composite_all_windows): Remove debug spew
2006-03-27 Gora Mohanty <gmohanty@cvs.gnome.org>
* src/metacity.schemas.in:
* src/theme.c:
Changes strings to make them more readable, and more translatable.
Fixes#335720.
2006-04-02 Elijah Newren <newren gmail com>
Fix constraints bug causing negative width windows and crashes.
#336651
* src/constraints.c (constrain_partially_onscreen): Don't
accidentally shove & resize the window by requiring more pixels to
be onscreen than the size of the window.
Fri Mar 31 16:44:56 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-screen.c (meta_screen_info_unredirect): Release the GL
window here. Disconect from the magnifier, not the stacker.
Fri Mar 31 12:24:26 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-screen.c (meta_screen_info_redirect): Only use magnifier
when USE_MAGNIFIER is set.
* src/compositor.c (meta_compositor_free_window): Only wobble when
USE_WOBBLE is set.
2006-03-29 Elijah Newren <newren gmail com>
Fix grouping in the presence of ancestors; caught by Björn.
#336184
* src/group.c (meta_window_compute_group): Use new
meta_window_find_root_ancestor() function to get ancestor; for the
computed group, use the ancestor's group instead of the ancestor
itself
* src/window.[ch] (meta_window_find_root_ancestor,
meta_window_raise): split meta_window_find_root_ancestor()
functionality of meta_window_raise() and make it available
elsewhere
2006-03-29 Thomas Thurman <thomas@thurman.org.uk>
* src/window.c, src/window.h (meta_window_set_demands_attention,
meta_window_unset_demands_attention): mark a window as needing
or not needing the user's attention
* src/window.c (meta_window_show, window_activate,
meta_window_focus, meta_window_configure_request,
meta_window_client_message): use the new set/unset
demands attention functions. Fixes#305822.
Tue Mar 28 09:57:26 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-screen.c (meta_screen_info_add_window): Also check for overlay_window.
* src/c-screen.c (meta_screen_info_redirect): Trap errors out of
unredirect().
2006-03-25 Thomas Thurman <thomas@thurman.org.uk>
* src/window.c, src/window.h (update_net_wm_state,
update_mwm_hints, update_wm_class, update_transient_for):
deleted and moved into window-props.c
(meta_window_new_with_attrs): added constructing field
and four new initial properties (as above)
(meta_window_recalc_features,
meta_window_recalc_window_type): new functions
* src/window-props.c (init_net_wm_state, reload_net_wm_state
init_mwm_hints, reload_mwm_hints, init_wm_class,
reload_mwm_class, init_transient_for, reload_transient_for):
new functions, moved in from window.c
(meta_display_init_window_prop_hooks): initialise new properties
2006-03-16 Ray Strode <rstrode@redhat.com>
Add patch from Elijah Newren to fix type
for compositing_manager schema entry (bug 335901)
* src/metacity.schemas.in: Change type from "boolean" to "bool"
and default value from "FALSE" to "false"
Mon Mar 20 11:50:44 2006 Søren Sandmann <sandmann@redhat.com>
* src/c-screen.c (meta_screen_info_redirect): Put the desktop into
a magnifier.
* src/c-screen.c (struct MetaScreenInfo): Add a CmMagnifier
* src/c-screen.c (meta_screen_info_redirect): Move some of the gl
window related stuff here.
2006-03-03 Thomas Thurman <thomas@thurman.org.uk>
Always set _NET_WM_STATE when a window is shown or
hidden, even if it wasn't mapped.
* src/window.c (meta_window_hide, meta_window_show):
call set_net_wm_state unconditionally
2006-03-16 Elijah Newren <newren gmail com>
Add debugging information for edge resistance
* src/edge-resistance.c (cache_edges): print out the edges that
are being cached if in verbose mode,
(meta_window_edge_resistance_for_move,
meta_window_edge_resistance_for_resize): if edge resistance kicked
in then print out a message about it
* src/util.c:
* src/util.h:
Add META_DEBUG_EDGE_RESISTANCE to MetaDebugTopic enum list
Wed Mar 15 16:30:09 2006 Søren Sandmann <sandmann@redhat.com>
* src/compositor.c (set_geometry): Use set_target_rect() instead
of set_size().
* src/c-screen.c: Add set_target_rect() as a way of scaling windows.
* src/window.c (meta_window_handle_mouse_grab_op_event): Turn
updates on after a button release.
* src/window.c (meta_window_move_resize_internal): Fix
indentation.
Tue Mar 14 11:57:46 2006 Søren Sandmann <sandmann@redhat.com>
* src/compositor.c: Comment out wobbling
* src/compositor.c (blow_up): remove this function
* src/compositor.c (process_configure_notify): Uncomment
set_size().
* src/c-screen.c (meta_screen_info_set_updates): When updates are
true, set all the properties such as size and shape.
* src/c-screen.c (meta_screen_info_add_window): Create a special
WindowInfo structure for each window.
* src/c-screen.c (meta_screen_info_set_size): Set size and output
shape of the drawable node.
2006-03-06 Ryan Lortie <desrt@desrt.ca>
* src/window.c (meta_window_free): Only unmaximise window before
freeing if the window is actually maximised. #333563.
Wed Mar 3 13:25:03 2006 Søren Sandmann <sandmann@redhat.com>
* src/compositor.c, src/c-screen.[ch]: Split the ScreenInfo data
structure into separate, new files c-screen.[ch].
* src/errors.c (x_error_handler): Forward foreign errors to
foreign displays.
* src/errors.c (meta_errors_register_foreign_display): Implement
this function
* src/errors.h: Add new meta_errors_register_foreign_display()
Tue Feb 28 14:49:23 2006 Søren Sandmann <sandmann@redhat.com>
* src/compositor.c: Put the windows in a stacker rather than
do the traversing outselves.
2006-02-27 Elijah Newren <newren gmail com>
Patch from Thomas Thurman to prevent setting cycle_windows to
keybindings that won't work. #329676
* src/prefs.c (update_binding):
Make sure that bindings which require a modifier key are set to a
keybinding with one or else that the binding is reverted.
* src/ui.[ch] (meta_ui_accelerator_name):
New function
2006-02-27 Elijah Newren <newren gmail com>
Patch from Thomas Thurman to work around buggy application
grouping with transient windows. #328211
* src/group.c (meta_window_compute_group):
Put transients in the same group with their parent, always.
* src/window.c (update_transient_for):
Update group too
Sat Feb 25 11:46:14 2006 Søren Sandmann <sandmann@redhat.com>
* src/display.c (meta_display_begin_grab_op): Call
meta_compositor_begin_move if there is a compositor
* src/compositor.c (meta_compositor_begin/update/end_move):
Implement those functions.
* src/spring-model.[ch]: New files
Thu Feb 23 15:40:52 2006 Søren Sandmann <sandmann@redhat.com>
* src/compositor.c (meta_compositor_manage_screen): Don't attempt
to manage the screen if it already is managed.
* src/compositor.c (meta_compositor_unmanage_screen): Synchronize
the display.
2006-02-19 Thomas Thurman <thomas thurman org uk>
Removed "move to another workspace" menu when there are
exactly two workspaces. Fixes#151183.
* src/menu.c (meta_window_menu_new): clear
META_MENU_OP_WORKSPACES bit when n_workspaces==2
Fri Feb 17 11:56:35 2006 Søren Sandmann <sandmann@redhat.com>
* src/screen.c (meta_screen_free): Only uncomposite the screen if
there is a compositor.
* src/compositor.c (meta_compositor_new): Warn and fail if the
server doesn't have composite
Thu Feb 16 15:24:42 2006 Søren Sandmann <sandmann@redhat.com>
* src/screen.c (meta_screen_composite_all_windows): New function.
* src/prefs.[ch], src/metacity.schemas.in: Add new
compositing_manager key.
* src/display.c (prefs_changed_callback): Handle
META_PREF_COMPOSITOR_MANAGER
* src/display.c (event_callback): Only call
meta_compositor_process_event() if there is in fact a compositor.
* src/display.c (enable/disable_compositor): Add code to
enable/disable compositor at runtime
Wed Feb 15 14:47:50 2006 Søren Sandmann <sandmann@redhat.com>
* src/compositor.c (meta_compositor_unminimize): Add unused wobbly
unminimize animation by Kristian
* src/compositor.c (meta_compositor_minimize): Add wobbly minimize
animation by Kristian.
* src/compositor.c: Add support for turning updates on and off.
* src/window.c (meta_window_move_resize_internal): Use
sync counter to make composited resizing tear free
2006-02-13 Elijah Newren <newren gmail com>
* src/keybindings.c (process_tab_grab):
We had that prev_window code in multiple places and it was all
identical. Let's just stick it in one place to make the function
easier to read.
2006-02-11 Thomas Thurman <thomas thurman org uk>
Disable alt-f7 if a window can't be moved, and alt-f8 if it
can't be resized. Fixes#328920.
* src/keybindings.c (handle_begin_move, handle_begin_resize):
check window->has_*_func before beginning operation
2006-02-11 Elijah Newren <newren gmail com>
* src/stack.h (enum MetaStackLayer):
* src/stack.c (get_standalone_layer):
actually use META_LAYER_TOP but just manually make it equal to
META_LAYER_DOCK. Add a note point to the EWMH for why we do this.
#330717
2006-02-10 Thomas Thurman <thomas thurman org uk>
Avoid a memory leak when checking which workspace(s) a window is
on. Fixes#322059.
* src/workspace.h (struct MetaWorkspace):
* src/workspace.c (meta_workspace_new, meta_workspace_free):
added list_containing_self member to MetaWorkspace
* src/window.c (meta_window_get_workspaces): use
window->workspace->list_containing_self instead of allocating (and
leaking) such a list on the fly.
2006-02-09 Thomas Thurman <thomas thurman org uk>
* src/testboxes.c (test_regions_okay, test_clamping_to_region):
add messages to explain that warnings are harmless
2006-02-03 Thomas Thurman <thomas thurman org uk>
* src/display.c (event_callback): produce warning when invalid
events with no timestamp are received, rather than failing an
assertion
2006-01-30 Elijah Newren <newren gmail com>
* src/display.[ch] (struct MetaDisplay), meta_display_open,
meta_display_set_input_focus_window,
meta_display_focus_the_no_focus_window): Track the active_screen,
(event_callback): If the mouse enters a window on a different
screen, activate the default window on the new screen. May need
to be modified for click-to-focus; we'll wait for feedback. Fixes
#319348.
2006-01-23 Elijah Newren <newren gmail com>
* src/display.c (meta_display_check_threshold_reached): change the
order of the ||'ed items in the if to avoid using an uninitialized
value
* src/prefs.c (meta_prefs_init): fix a couple uninitialized value
problems
2006-01-21 Elijah Newren <newren gmail com>
Patch from Christian Kirbach to prevent a critical warning crasher
when switching themes. #327847.
* src/theme.c (meta_theme_free): since themes are only constructed
as needed and may be NULL, check for that before freeing theme
hash tables
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.
2006-01-20 Elijah Newren <newren gmail com>
* src/constraints.c (setup_constraint_info): fixed_directions is
only meant for explicit user interactions; disable it for
everything else. There are other bugs and improvements that could
be made with fixed_directions that I should be filing too, but at
least put a FIXME there for now--I'm so lame. Fixes#327822.
2006-01-20 Elijah Newren <newren gmail com>
Avoid flashing when closing a maximized window. Fixes#317254.
* src/window.c (unmaximize_window_before_freeing): new function
that just fixes the net_wm_state and sends a configure_notify,
(meta_window_free): use unmaximize_window_before_freeing() instead
of meta_window_unmaximize() to avoid flicker
2006-01-20 Elijah Newren <newren gmail com>
Fix unitialized value problem when in raise-on-click mode. Søren,
#327572.
* src/display.c (meta_display_check_threshold_reached): make
function be a no op if raise_on_click!=FALSE
* src/display.h (struct MetaDisplay): point out that
grab_initial_[xy] and grab_threshold_movement_reached are only for
raise_on_click==FALSE mode.
2006-01-20 Elijah Newren <newren gmail com>
Patch from Søren to fix some reading-from-free'd-data errors.
#327575
* src/edge-resistance.c (meta_display_cleanup_edges): store the
edges in a hash table so that we can still read their values
within the loop from the other array they are stored in, then free
them all at the end.
2006-01-20 Elijah Newren <newren gmail com>
Fix various initialization and default issues, especially for
--disable-gconf. Make --disable-gconf actually work. #326661.
* configure.in: Fix compilation with --disable-gconf
* src/metacity.schemas.in: Add a note that if any defaults are
changed in this file, src/prefs.c may need to be updated to
reflect the change
* src/prefs.c: set various static global vars to the right default
value, (meta_prefs_init): get the titlebar_font and current_theme
handled better when not using gconf, (struct MetaSimpleKeyMapping,
screen_string_bindings, window_string_bindings): helper vars to
allow some keybindings to work even without gconf,
(init_bindings): initialize bindings for the without-gconf case
too, (init_commands): make sure these are all NULL for the
non-gconf case so that we don't access random memory,
(init_workspace_names): just give these all a default name for the
non-gconf case,
(meta_prefs_change_workspace_name): actually change the name for
the non-gconf case too
2006-01-20 Elijah Newren <newren gmail com>
More careful error handling of values returned by GConf. Fixes
#326615.
* src/prefs.c (get_bool): new helper function, (meta_prefs_init):
use get_bool to handle the case of a gconf key not existing,
(update_cursor_size): sanity check for sane values
2006-01-20 Elijah Newren <newren gmail com>
Prevent rapidly repeated visual bells from hanging metacity.
Fixes#322032.
* src/display.h (struct MetaDisplay): add a last_bell_time field,
(XSERVER_TIME_IS_BEFORE_ASSUMING_REAL_TIMESTAMPS macro,
XERVER_TIME_IS_BEFORE macro): add parentheses around usage of
macro parameter
* src/display.c (meta_display_open): initialize last_bell_time,
(event_callback): don't allow more than one bell per second
