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https://github.com/brl/mutter.git
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3508c4aa87
There was a problem where if, for example, a restack was triggered out of a clutter event handler, then after Clutter processed the events, it would proceed immmediately on to repaint the stage without ever returning control to the GLib main loop. So even though we had an idle handler installed with a higher priority than the Clutter stage repainting the clutter stage repainting would happen first and we'd get a wrong frame. Fix this by introducing the idea of "later functions", which abstract the idea of "doing something later" away from g_idle_add() and use a combination of GLib idle functions and Clutter "repaint functions" to get our callbacks triggered at the right time, even when they are installed from a clutter event handler. https://bugzilla.gnome.org/show_bug.cgi?id=596334 This also resolve a FIXME where MUTTER_PRIORITY_BEFORE_REDRAW could starve stage repainting.
187 lines
6.1 KiB
C
187 lines
6.1 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/* Mutter utilities */
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/*
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* Copyright (C) 2001 Havoc Pennington
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* Copyright (C) 2005 Elijah Newren
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef META_UTIL_H
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#define META_UTIL_H
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#include <glib.h>
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#include <glib-object.h>
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gboolean meta_is_verbose (void);
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void meta_set_verbose (gboolean setting);
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gboolean meta_is_debugging (void);
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void meta_set_debugging (gboolean setting);
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gboolean meta_is_syncing (void);
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void meta_set_syncing (gboolean setting);
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gboolean meta_get_replace_current_wm (void);
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void meta_set_replace_current_wm (gboolean setting);
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void meta_debug_spew_real (const char *format,
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...) G_GNUC_PRINTF (1, 2);
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void meta_verbose_real (const char *format,
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...) G_GNUC_PRINTF (1, 2);
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void meta_bug (const char *format,
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...) G_GNUC_PRINTF (1, 2);
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void meta_warning (const char *format,
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...) G_GNUC_PRINTF (1, 2);
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void meta_fatal (const char *format,
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...) G_GNUC_PRINTF (1, 2);
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typedef enum
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{
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META_DEBUG_FOCUS = 1 << 0,
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META_DEBUG_WORKAREA = 1 << 1,
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META_DEBUG_STACK = 1 << 2,
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META_DEBUG_THEMES = 1 << 3,
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META_DEBUG_SM = 1 << 4,
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META_DEBUG_EVENTS = 1 << 5,
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META_DEBUG_WINDOW_STATE = 1 << 6,
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META_DEBUG_WINDOW_OPS = 1 << 7,
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META_DEBUG_GEOMETRY = 1 << 8,
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META_DEBUG_PLACEMENT = 1 << 9,
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META_DEBUG_PING = 1 << 10,
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META_DEBUG_XINERAMA = 1 << 11,
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META_DEBUG_KEYBINDINGS = 1 << 12,
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META_DEBUG_SYNC = 1 << 13,
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META_DEBUG_ERRORS = 1 << 14,
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META_DEBUG_STARTUP = 1 << 15,
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META_DEBUG_PREFS = 1 << 16,
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META_DEBUG_GROUPS = 1 << 17,
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META_DEBUG_RESIZING = 1 << 18,
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META_DEBUG_SHAPES = 1 << 19,
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META_DEBUG_COMPOSITOR = 1 << 20,
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META_DEBUG_EDGE_RESISTANCE = 1 << 21
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} MetaDebugTopic;
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void meta_topic_real (MetaDebugTopic topic,
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const char *format,
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...) G_GNUC_PRINTF (2, 3);
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void meta_push_no_msg_prefix (void);
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void meta_pop_no_msg_prefix (void);
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gint meta_unsigned_long_equal (gconstpointer v1,
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gconstpointer v2);
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guint meta_unsigned_long_hash (gconstpointer v);
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void meta_print_backtrace (void);
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const char* meta_gravity_to_string (int gravity);
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#include <libintl.h>
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#define _(x) dgettext (GETTEXT_PACKAGE, x)
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#define N_(x) x
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char* meta_g_utf8_strndup (const gchar *src, gsize n);
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void meta_free_gslist_and_elements (GSList *list_to_deep_free);
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GPid meta_show_dialog (const char *type,
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const char *title,
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const char *message,
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gint timeout,
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const char *ok_text,
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const char *cancel_text,
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const int transient_for,
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GSList *columns,
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GSList *entries);
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/* To disable verbose mode, we make these functions into no-ops */
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#ifdef WITH_VERBOSE_MODE
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#define meta_debug_spew meta_debug_spew_real
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#define meta_verbose meta_verbose_real
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#define meta_topic meta_topic_real
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#else
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# ifdef G_HAVE_ISO_VARARGS
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# define meta_debug_spew(...)
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# define meta_verbose(...)
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# define meta_topic(...)
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# elif defined(G_HAVE_GNUC_VARARGS)
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# define meta_debug_spew(format...)
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# define meta_verbose(format...)
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# define meta_topic(format...)
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# else
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# error "This compiler does not support varargs macros and thus verbose mode can't be disabled meaningfully"
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# endif
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#endif /* !WITH_VERBOSE_MODE */
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#include <glib-object.h>
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#define META_TYPE_NEXUS (meta_nexus_get_type ())
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#define META_NEXUS(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), META_TYPE_NEXUS, MetaNexus))
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#define META_NEXUS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), META_TYPE_NEXUS, MetaNexusClass))
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#define META_IS_NEXUS(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), META_TYPE_NEXUS))
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#define META_IS_NEXUS_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), META_TYPE_NEXUS))
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#define META_NEXUS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), META_TYPE_NEXUS, MetaNexusClass))
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typedef struct _MetaNexus
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{
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GObject parent_instance;
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} MetaNexus;
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typedef struct _MetaNexusClass
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{
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GObjectClass parent_class;
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} MetaNexusClass;
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GType meta_nexus_get_type (void) G_GNUC_CONST;
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MetaNexus *meta_nexus_new ();
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/**
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* An object which exists purely to attach signals to; this is to receive
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* signals when a child process exits. The signal is "sigchld" with no detail.
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*
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* \bug Eventually we should have a specialised type for objects like these.
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*/
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extern MetaNexus *sigchld_nexus;
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/**
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* MetaLaterType:
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* @META_LATER_RESIZE: call in a resize processing phase that is done
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* before GTK+ repainting (including window borders) is done.
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* @META_LATER_BEFORE_REDRAW: call before the stage is redrawn
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* @META_LATER_IDLE: call at a very low priority (can be blocked
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* by running animations or redrawing applications)
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**/
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typedef enum {
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META_LATER_RESIZE,
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META_LATER_BEFORE_REDRAW,
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META_LATER_IDLE
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} MetaLaterType;
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guint meta_later_add (MetaLaterType when,
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GSourceFunc func,
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gpointer data,
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GDestroyNotify notify);
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void meta_later_remove (guint later_id);
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#endif /* META_UTIL_H */
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