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mutter-performance-source/src/core/display.c
Jon Nettleton 51a6467968 Comprehensively rename to Mutter 
Code:
All references in the code not related to themes, keybindings, or
GConf were changed from 'metacity' to 'mutter'. This includes, among other
things, strings, comments, the atoms used in the message protocol, and
the envvars used for debugging. The GConf schema file was reduced to
the 3 settings new to mutter.

The overall version was brought up to 2.27 to match current gnome.

Structure:
All files named '*metacity*' were renamed '*mutter*' with appropriate
changes in the automake system.  Files removed are
doc/creating_themes, src/themes, doc/metacity-theme.dtd,
metacity.doap.  These files will eventually end up in an external
gnome-wm-data module.

Installation location:
On the filesystem the mutter-plugindir was change from
$(libdir)/metacity/plugins/clutter to just $(libdir)/mutter/plugins.
The mutter-plugins.pc.in reflects these changes.

Note:
mutter.desktop.in and mutter-wm.desktop both continue to have
X-GNOME-WMSettingsModule=metacity set.  This allows
gnome-control-center to continue using libmetacity.so for
configuration.  This is fine since most the general keybindings and wm
settings are being read from /apps/metacity/* in gconf.
2009-06-16 14:17:10 -04:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Mutter X display handler */
/*
* Copyright (C) 2001 Havoc Pennington
* Copyright (C) 2002, 2003, 2004 Red Hat, Inc.
* Copyright (C) 2003, 2004 Rob Adams
* Copyright (C) 2004-2006 Elijah Newren
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
* 02111-1307, USA.
*/
/**
* \file display.c Handles operations on an X display.
*
* The display is represented as a MetaDisplay struct.
*/
#include <config.h>
#include "display-private.h"
#include "util.h"
#include "main.h"
#include "screen-private.h"
#include "window-private.h"
#include "window-props.h"
#include "group-props.h"
#include "frame-private.h"
#include "errors.h"
#include "keybindings-private.h"
#include "prefs.h"
#include "resizepopup.h"
#include "xprops.h"
#include "workspace-private.h"
#include "bell.h"
#include "effects.h"
#include "compositor.h"
#include <X11/Xatom.h>
#include <X11/cursorfont.h>
#ifdef HAVE_SOLARIS_XINERAMA
#include <X11/extensions/xinerama.h>
#endif
#ifdef HAVE_XFREE_XINERAMA
#include <X11/extensions/Xinerama.h>
#endif
#ifdef HAVE_RANDR
#include <X11/extensions/Xrandr.h>
#endif
#ifdef HAVE_SHAPE
#include <X11/extensions/shape.h>
#endif
#ifdef HAVE_RENDER
#include <X11/extensions/Xrender.h>
#endif
#ifdef HAVE_XKB
#include <X11/XKBlib.h>
#endif
#ifdef HAVE_XCURSOR
#include <X11/Xcursor/Xcursor.h>
#endif
#ifdef HAVE_COMPOSITE_EXTENSIONS
#include <X11/extensions/Xcomposite.h>
#include <X11/extensions/Xdamage.h>
#include <X11/extensions/Xfixes.h>
#endif
#include <string.h>
#define GRAB_OP_IS_WINDOW_SWITCH(g) \
(g == META_GRAB_OP_KEYBOARD_TABBING_NORMAL || \
g == META_GRAB_OP_KEYBOARD_TABBING_DOCK || \
g == META_GRAB_OP_KEYBOARD_TABBING_GROUP || \
g == META_GRAB_OP_KEYBOARD_ESCAPING_NORMAL || \
g == META_GRAB_OP_KEYBOARD_ESCAPING_DOCK || \
g == META_GRAB_OP_KEYBOARD_ESCAPING_GROUP)
/**
* \defgroup pings Pings
*
* Sometimes we want to see whether a window is responding,
* so we send it a "ping" message and see whether it sends us back a "pong"
* message within a reasonable time. Here we have a system which lets us
* nominate one function to be called if we get the pong in time and another
* function if we don't. The system is rather more complicated than it needs
* to be, since we only ever use it to destroy windows which are asked to
* close themselves and don't do so within a reasonable amount of time, and
* therefore we always use the same callbacks. It's possible that we might
* use it for other things in future, or on the other hand we might decide
* that we're never going to do so and simplify it a bit.
*/
/**
* Describes a ping on a window. When we send a ping to a window, we build
* one of these structs, and it eventually gets passed to the timeout function
* or to the function which handles the response from the window. If the window
* does or doesn't respond to the ping, we use this information to deal with
* these facts; we have a handler function for each.
*
* \ingroup pings
*/
typedef struct
{
MetaDisplay *display;
Window xwindow;
guint32 timestamp;
MetaWindowPingFunc ping_reply_func;
MetaWindowPingFunc ping_timeout_func;
void *user_data;
guint ping_timeout_id;
} MetaPingData;
typedef struct
{
MetaDisplay *display;
Window xwindow;
} MetaAutoRaiseData;
G_DEFINE_TYPE(MetaDisplay, meta_display, G_TYPE_OBJECT);
/* Signals */
enum
{
OVERLAY_KEY,
LAST_SIGNAL
};
static guint display_signals [LAST_SIGNAL] = { 0 };
/**
* The display we're managing. This is a singleton object. (Historically,
* this was a list of displays, but there was never any way to add more
* than one element to it.) The goofy name is because we don't want it
* to shadow the parameter in its object methods.
*/
static MetaDisplay *the_display = NULL;
static void meta_spew_event (MetaDisplay *display,
XEvent *event);
static gboolean event_callback (XEvent *event,
gpointer data);
static Window event_get_modified_window (MetaDisplay *display,
XEvent *event);
static guint32 event_get_time (MetaDisplay *display,
XEvent *event);
static void process_request_frame_extents (MetaDisplay *display,
XEvent *event);
static void process_pong_message (MetaDisplay *display,
XEvent *event);
static void process_selection_request (MetaDisplay *display,
XEvent *event);
static void process_selection_clear (MetaDisplay *display,
XEvent *event);
static void update_window_grab_modifiers (MetaDisplay *display);
static void prefs_changed_callback (MetaPreference pref,
void *data);
static void sanity_check_timestamps (MetaDisplay *display,
guint32 known_good_timestamp);
MetaGroup* get_focussed_group (MetaDisplay *display);
static void
meta_display_class_init (MetaDisplayClass *klass)
{
display_signals[OVERLAY_KEY] =
g_signal_new ("overlay-key",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_LAST,
0,
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
/**
* Destructor for MetaPingData structs. Will destroy the
* event source for the struct as well.
*
* \ingroup pings
*/
static void
ping_data_free (MetaPingData *ping_data)
{
/* Remove the timeout */
if (ping_data->ping_timeout_id != 0)
g_source_remove (ping_data->ping_timeout_id);
g_free (ping_data);
}
/**
* Frees every pending ping structure for the given X window on the
* given display. This means that we also destroy the timeouts.
*
* \param display The display the window appears on
* \param xwindow The X ID of the window whose pings we should remove
*
* \ingroup pings
*
*/
static void
remove_pending_pings_for_window (MetaDisplay *display, Window xwindow)
{
GSList *tmp;
GSList *dead;
/* could obviously be more efficient, don't care */
/* build list to be removed */
dead = NULL;
for (tmp = display->pending_pings; tmp; tmp = tmp->next)
{
MetaPingData *ping_data = tmp->data;
if (ping_data->xwindow == xwindow)
dead = g_slist_prepend (dead, ping_data);
}
/* remove what we found */
for (tmp = dead; tmp; tmp = tmp->next)
{
MetaPingData *ping_data = tmp->data;
display->pending_pings = g_slist_remove (display->pending_pings, ping_data);
ping_data_free (ping_data);
}
g_slist_free (dead);
}
#ifdef HAVE_STARTUP_NOTIFICATION
static void
sn_error_trap_push (SnDisplay *sn_display,
Display *xdisplay)
{
MetaDisplay *display;
display = meta_display_for_x_display (xdisplay);
if (display != NULL)
meta_error_trap_push (display);
}
static void
sn_error_trap_pop (SnDisplay *sn_display,
Display *xdisplay)
{
MetaDisplay *display;
display = meta_display_for_x_display (xdisplay);
if (display != NULL)
meta_error_trap_pop (display, FALSE);
}
#endif
static void
enable_compositor (MetaDisplay *display,
gboolean composite_windows)
{
GSList *list;
if (!META_DISPLAY_HAS_COMPOSITE (display) ||
!META_DISPLAY_HAS_DAMAGE (display) ||
!META_DISPLAY_HAS_XFIXES (display) ||
!META_DISPLAY_HAS_RENDER (display))
{
meta_warning (_("Missing %s extension required for compositing"),
!META_DISPLAY_HAS_COMPOSITE (display) ? "composite" :
!META_DISPLAY_HAS_DAMAGE (display) ? "damage" :
!META_DISPLAY_HAS_XFIXES (display) ? "xfixes" : "render");
return;
}
if (!display->compositor)
display->compositor = meta_compositor_new (display);
if (!display->compositor)
return;
for (list = display->screens; list != NULL; list = list->next)
{
MetaScreen *screen = list->data;
meta_compositor_manage_screen (screen->display->compositor,
screen);
if (composite_windows)
meta_screen_composite_all_windows (screen);
}
}
static void
disable_compositor (MetaDisplay *display)
{
GSList *list;
if (!display->compositor)
return;
for (list = display->screens; list != NULL; list = list->next)
{
MetaScreen *screen = list->data;
meta_compositor_unmanage_screen (screen->display->compositor,
screen);
}
meta_compositor_destroy (display->compositor);
display->compositor = NULL;
}
static void
meta_display_init (MetaDisplay *disp)
{
/* Some stuff could go in here that's currently in _open,
* but it doesn't really matter. */
}
/**
* Opens a new display, sets it up, initialises all the X extensions
* we will need, and adds it to the list of displays.
*
* \return True if the display was opened successfully, and False
* otherwise-- that is, if the display doesn't exist or it already
* has a window manager.
*
* \ingroup main
*/
gboolean
meta_display_open (void)
{
Display *xdisplay;
GSList *screens;
GSList *tmp;
int i;
guint32 timestamp;
/* A list of all atom names, so that we can intern them in one go. */
char *atom_names[] = {
#define item(x) #x,
#include "atomnames.h"
#undef item
};
Atom atoms[G_N_ELEMENTS(atom_names)];
meta_verbose ("Opening display '%s'\n", XDisplayName (NULL));
xdisplay = meta_ui_get_display ();
if (xdisplay == NULL)
{
meta_warning (_("Failed to open X Window System display '%s'\n"),
XDisplayName (NULL));
return FALSE;
}
if (meta_is_syncing ())
XSynchronize (xdisplay, True);
g_assert (the_display == NULL);
the_display = g_object_new (META_TYPE_DISPLAY, NULL);
the_display->closing = 0;
/* here we use XDisplayName which is what the user
* probably put in, vs. DisplayString(display) which is
* canonicalized by XOpenDisplay()
*/
the_display->name = g_strdup (XDisplayName (NULL));
the_display->xdisplay = xdisplay;
the_display->error_trap_synced_at_last_pop = TRUE;
the_display->error_traps = 0;
the_display->error_trap_handler = NULL;
the_display->server_grab_count = 0;
the_display->display_opening = TRUE;
the_display->pending_pings = NULL;
the_display->autoraise_timeout_id = 0;
the_display->autoraise_window = NULL;
the_display->focus_window = NULL;
the_display->expected_focus_window = NULL;
the_display->grab_old_window_stacking = NULL;
the_display->mouse_mode = TRUE; /* Only relevant for mouse or sloppy focus */
the_display->allow_terminal_deactivation = TRUE; /* Only relevant for when a
terminal has the focus */
#ifdef HAVE_XSYNC
the_display->grab_sync_request_alarm = None;
#endif
/* FIXME copy the checks from GDK probably */
the_display->static_gravity_works = g_getenv ("MUTTER_USE_STATIC_GRAVITY") != NULL;
meta_bell_init (the_display);
meta_display_init_keys (the_display);
update_window_grab_modifiers (the_display);
meta_prefs_add_listener (prefs_changed_callback, the_display);
meta_verbose ("Creating %d atoms\n", (int) G_N_ELEMENTS (atom_names));
XInternAtoms (the_display->xdisplay, atom_names, G_N_ELEMENTS (atom_names),
False, atoms);
{
int i = 0;
#define item(x) the_display->atom_##x = atoms[i++];
#include "atomnames.h"
#undef item
}
the_display->prop_hooks = NULL;
meta_display_init_window_prop_hooks (the_display);
the_display->group_prop_hooks = NULL;
meta_display_init_group_prop_hooks (the_display);
/* Offscreen unmapped window used for _NET_SUPPORTING_WM_CHECK,
* created in screen_new
*/
the_display->leader_window = None;
the_display->timestamp_pinging_window = None;
the_display->xinerama_cache_invalidated = TRUE;
the_display->groups_by_leader = NULL;
the_display->window_with_menu = NULL;
the_display->window_menu = NULL;
the_display->screens = NULL;
the_display->active_screen = NULL;
#ifdef HAVE_STARTUP_NOTIFICATION
the_display->sn_display = sn_display_new (the_display->xdisplay,
sn_error_trap_push,
sn_error_trap_pop);
#endif
the_display->events = NULL;
/* Get events */
meta_ui_add_event_func (the_display->xdisplay,
event_callback,
the_display);
the_display->window_ids = g_hash_table_new (meta_unsigned_long_hash,
meta_unsigned_long_equal);
i = 0;
while (i < N_IGNORED_SERIALS)
{
the_display->ignored_serials[i] = 0;
++i;
}
the_display->ungrab_should_not_cause_focus_window = None;
the_display->current_time = CurrentTime;
the_display->sentinel_counter = 0;
the_display->grab_resize_timeout_id = 0;
the_display->grab_have_keyboard = FALSE;
#ifdef HAVE_XKB
the_display->last_bell_time = 0;
#endif
the_display->grab_op = META_GRAB_OP_NONE;
the_display->grab_wireframe_active = FALSE;
the_display->grab_window = NULL;
the_display->grab_screen = NULL;
the_display->grab_resize_popup = NULL;
the_display->grab_edge_resistance_data = NULL;
#ifdef HAVE_XSYNC
{
int major, minor;
the_display->have_xsync = FALSE;
the_display->xsync_error_base = 0;
the_display->xsync_event_base = 0;
/* I don't think we really have to fill these in */
major = SYNC_MAJOR_VERSION;
minor = SYNC_MINOR_VERSION;
if (!XSyncQueryExtension (the_display->xdisplay,
&the_display->xsync_event_base,
&the_display->xsync_error_base) ||
!XSyncInitialize (the_display->xdisplay,
&major, &minor))
{
the_display->xsync_error_base = 0;
the_display->xsync_event_base = 0;
}
else
the_display->have_xsync = TRUE;
meta_verbose ("Attempted to init Xsync, found version %d.%d error base %d event base %d\n",
major, minor,
the_display->xsync_error_base,
the_display->xsync_event_base);
}
#else /* HAVE_XSYNC */
meta_verbose ("Not compiled with Xsync support\n");
#endif /* !HAVE_XSYNC */
#ifdef HAVE_SHAPE
{
the_display->have_shape = FALSE;
the_display->shape_error_base = 0;
the_display->shape_event_base = 0;
if (!XShapeQueryExtension (the_display->xdisplay,
&the_display->shape_event_base,
&the_display->shape_error_base))
{
the_display->shape_error_base = 0;
the_display->shape_event_base = 0;
}
else
the_display->have_shape = TRUE;
meta_verbose ("Attempted to init Shape, found error base %d event base %d\n",
the_display->shape_error_base,
the_display->shape_event_base);
}
#else /* HAVE_SHAPE */
meta_verbose ("Not compiled with Shape support\n");
#endif /* !HAVE_SHAPE */
#ifdef HAVE_RENDER
{
the_display->have_render = FALSE;
the_display->render_error_base = 0;
the_display->render_event_base = 0;
if (!XRenderQueryExtension (the_display->xdisplay,
&the_display->render_event_base,
&the_display->render_error_base))
{
the_display->render_error_base = 0;
the_display->render_event_base = 0;
}
else
the_display->have_render = TRUE;
meta_verbose ("Attempted to init Render, found error base %d event base %d\n",
the_display->render_error_base,
the_display->render_event_base);
}
#else /* HAVE_RENDER */
meta_verbose ("Not compiled with Render support\n");
#endif /* !HAVE_RENDER */
#ifdef HAVE_COMPOSITE_EXTENSIONS
{
the_display->have_composite = FALSE;
the_display->composite_error_base = 0;
the_display->composite_event_base = 0;
if (!XCompositeQueryExtension (the_display->xdisplay,
&the_display->composite_event_base,
&the_display->composite_error_base))
{
the_display->composite_error_base = 0;
the_display->composite_event_base = 0;
}
else
{
the_display->composite_major_version = 0;
the_display->composite_minor_version = 0;
if (XCompositeQueryVersion (the_display->xdisplay,
&the_display->composite_major_version,
&the_display->composite_minor_version))
{
the_display->have_composite = TRUE;
}
else
{
the_display->composite_major_version = 0;
the_display->composite_minor_version = 0;
}
}
meta_verbose ("Attempted to init Composite, found error base %d event base %d "
"extn ver %d %d\n",
the_display->composite_error_base,
the_display->composite_event_base,
the_display->composite_major_version,
the_display->composite_minor_version);
the_display->have_damage = FALSE;
the_display->damage_error_base = 0;
the_display->damage_event_base = 0;
if (!XDamageQueryExtension (the_display->xdisplay,
&the_display->damage_event_base,
&the_display->damage_error_base))
{
the_display->damage_error_base = 0;
the_display->damage_event_base = 0;
}
else
the_display->have_damage = TRUE;
meta_verbose ("Attempted to init Damage, found error base %d event base %d\n",
the_display->damage_error_base,
the_display->damage_event_base);
the_display->have_xfixes = FALSE;
the_display->xfixes_error_base = 0;
the_display->xfixes_event_base = 0;
if (!XFixesQueryExtension (the_display->xdisplay,
&the_display->xfixes_event_base,
&the_display->xfixes_error_base))
{
the_display->xfixes_error_base = 0;
the_display->xfixes_event_base = 0;
}
else
the_display->have_xfixes = TRUE;
meta_verbose ("Attempted to init XFixes, found error base %d event base %d\n",
the_display->xfixes_error_base,
the_display->xfixes_event_base);
}
#else /* HAVE_COMPOSITE_EXTENSIONS */
meta_verbose ("Not compiled with Composite support\n");
#endif /* !HAVE_COMPOSITE_EXTENSIONS */
#ifdef HAVE_XCURSOR
{
XcursorSetTheme (the_display->xdisplay, meta_prefs_get_cursor_theme ());
XcursorSetDefaultSize (the_display->xdisplay, meta_prefs_get_cursor_size ());
}
#else /* HAVE_XCURSOR */
meta_verbose ("Not compiled with Xcursor support\n");
#endif /* !HAVE_XCURSOR */
/* Create the leader window here. Set its properties and
* use the timestamp from one of the PropertyNotify events
* that will follow.
*/
{
gulong data[1];
XEvent event;
/* We only care about the PropertyChangeMask in the next 30 or so lines of
* code. Note that gdk will at some point unset the PropertyChangeMask for
* this window, so we can't rely on it still being set later. See bug
* 354213 for details.
*/
the_display->leader_window =
meta_create_offscreen_window (the_display->xdisplay,
DefaultRootWindow (the_display->xdisplay),
PropertyChangeMask);
meta_prop_set_utf8_string_hint (the_display,
the_display->leader_window,
the_display->atom__NET_WM_NAME,
"Mutter");
meta_prop_set_utf8_string_hint (the_display,
the_display->leader_window,
the_display->atom__MUTTER_VERSION,
VERSION);
data[0] = the_display->leader_window;
XChangeProperty (the_display->xdisplay,
the_display->leader_window,
the_display->atom__NET_SUPPORTING_WM_CHECK,
XA_WINDOW,
32, PropModeReplace, (guchar*) data, 1);
XWindowEvent (the_display->xdisplay,
the_display->leader_window,
PropertyChangeMask,
&event);
timestamp = event.xproperty.time;
/* Make it painfully clear that we can't rely on PropertyNotify events on
* this window, as per bug 354213.
*/
XSelectInput(the_display->xdisplay,
the_display->leader_window,
NoEventMask);
}
/* Make a little window used only for pinging the server for timestamps; note
* that meta_create_offscreen_window already selects for PropertyChangeMask.
*/
the_display->timestamp_pinging_window =
meta_create_offscreen_window (the_display->xdisplay,
DefaultRootWindow (the_display->xdisplay),
PropertyChangeMask);
the_display->last_focus_time = timestamp;
the_display->last_user_time = timestamp;
the_display->compositor = NULL;
screens = NULL;
i = 0;
while (i < ScreenCount (xdisplay))
{
MetaScreen *screen;
screen = meta_screen_new (the_display, i, timestamp);
if (screen)
screens = g_slist_prepend (screens, screen);
++i;
}
the_display->screens = screens;
if (screens == NULL)
{
/* This would typically happen because all the screens already
* have window managers.
*/
meta_display_close (the_display, timestamp);
return FALSE;
}
/* We don't composite the windows here because they will be composited
faster with the call to meta_screen_manage_all_windows further down
the code */
if (1) /* meta_prefs_get_compositing_manager ()) FIXME */
enable_compositor (the_display, FALSE);
meta_display_grab (the_display);
/* Now manage all existing windows */
tmp = the_display->screens;
while (tmp != NULL)
{
MetaScreen *screen = tmp->data;
meta_screen_manage_all_windows (screen);
tmp = tmp->next;
}
{
Window focus;
int ret_to;
/* kinda bogus because GetInputFocus has no possible errors */
meta_error_trap_push (the_display);
/* FIXME: This is totally broken; see comment 9 of bug 88194 about this */
focus = None;
ret_to = RevertToPointerRoot;
XGetInputFocus (the_display->xdisplay, &focus, &ret_to);
/* Force a new FocusIn (does this work?) */
/* Use the same timestamp that was passed to meta_screen_new(),
* as it is the most recent timestamp.
*/
if (focus == None || focus == PointerRoot)
/* Just focus the no_focus_window on the first screen */
meta_display_focus_the_no_focus_window (the_display,
the_display->screens->data,
timestamp);
else
{
MetaWindow * window;
window = meta_display_lookup_x_window (the_display, focus);
if (window)
meta_display_set_input_focus_window (the_display, window, FALSE, timestamp);
else
/* Just focus the no_focus_window on the first screen */
meta_display_focus_the_no_focus_window (the_display,
the_display->screens->data,
timestamp);
}
meta_error_trap_pop (the_display, FALSE);
}
meta_display_ungrab (the_display);
/* Done opening new display */
the_display->display_opening = FALSE;
return TRUE;
}
static void
listify_func (gpointer key, gpointer value, gpointer data)
{
GSList **listp;
listp = data;
*listp = g_slist_prepend (*listp, value);
}
static gint
ptrcmp (gconstpointer a, gconstpointer b)
{
if (a < b)
return -1;
else if (a > b)
return 1;
else
return 0;
}
GSList*
meta_display_list_windows (MetaDisplay *display)
{
GSList *winlist;
GSList *tmp;
GSList *prev;
winlist = NULL;
g_hash_table_foreach (display->window_ids,
listify_func,
&winlist);
/* Uniquify the list, since both frame windows and plain
* windows are in the hash
*/
winlist = g_slist_sort (winlist, ptrcmp);
prev = NULL;
tmp = winlist;
while (tmp != NULL)
{
GSList *next;
next = tmp->next;
if (next &&
next->data == tmp->data)
{
/* Delete tmp from list */
if (prev)
prev->next = next;
if (tmp == winlist)
winlist = next;
g_slist_free_1 (tmp);
/* leave prev unchanged */
}
else
{
prev = tmp;
}
tmp = next;
}
return winlist;
}
void
meta_display_close (MetaDisplay *display,
guint32 timestamp)
{
GSList *tmp;
g_assert (display != NULL);
if (display->closing != 0)
{
/* The display's already been closed. */
return;
}
if (display->error_traps > 0)
meta_bug ("Display closed with error traps pending\n");
display->closing += 1;
meta_prefs_remove_listener (prefs_changed_callback, display);
meta_display_remove_autoraise_callback (display);
if (display->grab_old_window_stacking)
g_list_free (display->grab_old_window_stacking);
/* Stop caring about events */
meta_ui_remove_event_func (display->xdisplay,
event_callback,
display);
/* Free all screens */
tmp = display->screens;
while (tmp != NULL)
{
MetaScreen *screen = tmp->data;
meta_screen_free (screen, timestamp);
tmp = tmp->next;
}
g_slist_free (display->screens);
display->screens = NULL;
#ifdef HAVE_STARTUP_NOTIFICATION
if (display->sn_display)
{
sn_display_unref (display->sn_display);
display->sn_display = NULL;
}
#endif
/* Must be after all calls to meta_window_unmanage() since they
* unregister windows
*/
g_hash_table_destroy (display->window_ids);
if (display->leader_window != None)
XDestroyWindow (display->xdisplay, display->leader_window);
XFlush (display->xdisplay);
meta_display_free_window_prop_hooks (display);
meta_display_free_group_prop_hooks (display);
g_free (display->name);
meta_display_shutdown_keys (display);
if (display->compositor)
meta_compositor_destroy (display->compositor);
g_object_unref (display);
meta_quit (META_EXIT_SUCCESS);
}
/**
* meta_display_screen_for_root:
* @display: a #MetaDisplay
*
* Return the #MetaScreen corresponding to a specified X root window ID.
*
* Return Value: (transfer none): the screen for the specified root window ID, or %NULL
*/
MetaScreen*
meta_display_screen_for_root (MetaDisplay *display,
Window xroot)
{
GSList *tmp;
tmp = display->screens;
while (tmp != NULL)
{
MetaScreen *screen = tmp->data;
if (xroot == screen->xroot)
return screen;
tmp = tmp->next;
}
return NULL;
}
MetaScreen*
meta_display_screen_for_xwindow (MetaDisplay *display,
Window xwindow)
{
XWindowAttributes attr;
int result;
meta_error_trap_push (display);
attr.screen = NULL;
result = XGetWindowAttributes (display->xdisplay, xwindow, &attr);
meta_error_trap_pop (display, TRUE);
/* Note, XGetWindowAttributes is on all kinds of crack
* and returns 1 on success 0 on failure, rather than Success
* on success.
*/
if (result == 0 || attr.screen == NULL)
return NULL;
return meta_display_screen_for_x_screen (display, attr.screen);
}
MetaScreen*
meta_display_screen_for_x_screen (MetaDisplay *display,
Screen *xscreen)
{
GSList *tmp;
tmp = display->screens;
while (tmp != NULL)
{
MetaScreen *screen = tmp->data;
if (xscreen == screen->xscreen)
return screen;
tmp = tmp->next;
}
return NULL;
}
/* Grab/ungrab routines taken from fvwm */
void
meta_display_grab (MetaDisplay *display)
{
if (display->server_grab_count == 0)
{
XGrabServer (display->xdisplay);
}
display->server_grab_count += 1;
meta_verbose ("Grabbing display, grab count now %d\n",
display->server_grab_count);
}
void
meta_display_ungrab (MetaDisplay *display)
{
if (display->server_grab_count == 0)
meta_bug ("Ungrabbed non-grabbed server\n");
display->server_grab_count -= 1;
if (display->server_grab_count == 0)
{
/* FIXME we want to purge all pending "queued" stuff
* at this point, such as window hide/show
*/
XUngrabServer (display->xdisplay);
XFlush (display->xdisplay);
}
meta_verbose ("Ungrabbing display, grab count now %d\n",
display->server_grab_count);
}
/**
* Returns the singleton MetaDisplay if "xdisplay" matches the X display it's
* managing; otherwise gives a warning and returns NULL. When we were claiming
* to be able to manage multiple displays, this was supposed to find the
* display out of the list which matched that display. Now it's merely an
* extra sanity check.
*
* \param xdisplay An X display
* \return The singleton X display, or NULL if "xdisplay" isn't the one
* we're managing.
*/
MetaDisplay*
meta_display_for_x_display (Display *xdisplay)
{
if (the_display->xdisplay == xdisplay)
return the_display;
meta_warning ("Could not find display for X display %p, probably going to crash\n",
xdisplay);
return NULL;
}
/**
* Accessor for the singleton MetaDisplay.
*
* \return The only MetaDisplay there is. This can be NULL, but only
* during startup.
*/
MetaDisplay*
meta_get_display (void)
{
return the_display;
}
#ifdef WITH_VERBOSE_MODE
static gboolean dump_events = TRUE;
#endif
static gboolean
grab_op_is_mouse_only (MetaGrabOp op)
{
switch (op)
{
case META_GRAB_OP_MOVING:
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_RESIZING_E:
return TRUE;
default:
return FALSE;
}
}
static gboolean
grab_op_is_mouse (MetaGrabOp op)
{
switch (op)
{
case META_GRAB_OP_MOVING:
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
case META_GRAB_OP_KEYBOARD_MOVING:
return TRUE;
default:
return FALSE;
}
}
static gboolean
grab_op_is_keyboard (MetaGrabOp op)
{
switch (op)
{
case META_GRAB_OP_KEYBOARD_MOVING:
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
case META_GRAB_OP_KEYBOARD_TABBING_NORMAL:
case META_GRAB_OP_KEYBOARD_TABBING_DOCK:
case META_GRAB_OP_KEYBOARD_TABBING_GROUP:
case META_GRAB_OP_KEYBOARD_ESCAPING_NORMAL:
case META_GRAB_OP_KEYBOARD_ESCAPING_DOCK:
case META_GRAB_OP_KEYBOARD_ESCAPING_GROUP:
case META_GRAB_OP_KEYBOARD_WORKSPACE_SWITCHING:
return TRUE;
default:
return FALSE;
}
}
gboolean
meta_grab_op_is_resizing (MetaGrabOp op)
{
switch (op)
{
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
return TRUE;
default:
return FALSE;
}
}
gboolean
meta_grab_op_is_moving (MetaGrabOp op)
{
switch (op)
{
case META_GRAB_OP_MOVING:
case META_GRAB_OP_KEYBOARD_MOVING:
return TRUE;
default:
return FALSE;
}
}
/* Get time of current event, or CurrentTime if none. */
guint32
meta_display_get_current_time (MetaDisplay *display)
{
return display->current_time;
}
/* Get a timestamp, even if it means a roundtrip */
guint32
meta_display_get_current_time_roundtrip (MetaDisplay *display)
{
guint32 timestamp;
timestamp = meta_display_get_current_time (display);
if (timestamp == CurrentTime)
{
XEvent property_event;
/* Using the property XA_PRIMARY because it's safe; nothing
* would use it as a property. The type doesn't matter.
*/
XChangeProperty (display->xdisplay,
display->timestamp_pinging_window,
XA_PRIMARY, XA_STRING, 8,
PropModeAppend, NULL, 0);
XWindowEvent (display->xdisplay,
display->timestamp_pinging_window,
PropertyChangeMask,
&property_event);
timestamp = property_event.xproperty.time;
}
sanity_check_timestamps (display, timestamp);
return timestamp;
}
static void
add_ignored_serial (MetaDisplay *display,
unsigned long serial)
{
int i;
/* don't add the same serial more than once */
if (display->ignored_serials[N_IGNORED_SERIALS-1] == serial)
return;
/* shift serials to the left */
i = 0;
while (i < (N_IGNORED_SERIALS - 1))
{
display->ignored_serials[i] = display->ignored_serials[i+1];
++i;
}
/* put new one on the end */
display->ignored_serials[i] = serial;
}
static gboolean
serial_is_ignored (MetaDisplay *display,
unsigned long serial)
{
int i;
i = 0;
while (i < N_IGNORED_SERIALS)
{
if (display->ignored_serials[i] == serial)
return TRUE;
++i;
}
return FALSE;
}
static void
reset_ignores (MetaDisplay *display)
{
int i;
i = 0;
while (i < N_IGNORED_SERIALS)
{
display->ignored_serials[i] = 0;
++i;
}
display->ungrab_should_not_cause_focus_window = None;
}
static gboolean
window_raise_with_delay_callback (void *data)
{
MetaWindow *window;
MetaAutoRaiseData *auto_raise;
auto_raise = data;
meta_topic (META_DEBUG_FOCUS,
"In autoraise callback for window 0x%lx\n",
auto_raise->xwindow);
auto_raise->display->autoraise_timeout_id = 0;
auto_raise->display->autoraise_window = NULL;
window = meta_display_lookup_x_window (auto_raise->display,
auto_raise->xwindow);
if (window == NULL)
return FALSE;
/* If we aren't already on top, check whether the pointer is inside
* the window and raise the window if so.
*/
if (meta_stack_get_top (window->screen->stack) != window)
{
int x, y, root_x, root_y;
Window root, child;
unsigned int mask;
gboolean same_screen;
gboolean point_in_window;
meta_error_trap_push (window->display);
same_screen = XQueryPointer (window->display->xdisplay,
window->xwindow,
&root, &child,
&root_x, &root_y, &x, &y, &mask);
meta_error_trap_pop (window->display, TRUE);
point_in_window =
(window->frame && POINT_IN_RECT (root_x, root_y, window->frame->rect)) ||
(window->frame == NULL && POINT_IN_RECT (root_x, root_y, window->rect));
if (same_screen && point_in_window)
meta_window_raise (window);
else
meta_topic (META_DEBUG_FOCUS,
"Pointer not inside window, not raising %s\n",
window->desc);
}
return FALSE;
}
void
meta_display_queue_autoraise_callback (MetaDisplay *display,
MetaWindow *window)
{
MetaAutoRaiseData *auto_raise_data;
meta_topic (META_DEBUG_FOCUS,
"Queuing an autoraise timeout for %s with delay %d\n",
window->desc,
meta_prefs_get_auto_raise_delay ());
auto_raise_data = g_new (MetaAutoRaiseData, 1);
auto_raise_data->display = window->display;
auto_raise_data->xwindow = window->xwindow;
if (display->autoraise_timeout_id != 0)
g_source_remove (display->autoraise_timeout_id);
display->autoraise_timeout_id =
g_timeout_add_full (G_PRIORITY_DEFAULT,
meta_prefs_get_auto_raise_delay (),
window_raise_with_delay_callback,
auto_raise_data,
g_free);
display->autoraise_window = window;
}
#if 0
static void
handle_net_restack_window (MetaDisplay* display,
XEvent *event)
{
MetaWindow *window;
window = meta_display_lookup_x_window (display,
event->xclient.window);
if (window)
{
/* FIXME: The EWMH includes a sibling for the restack request, but we
* (stupidly) don't currently support these types of raises.
*
* Also, unconditionally following these is REALLY stupid--we should
* combine this code with the stuff in
* meta_window_configure_request() which is smart about whether to
* follow the request or do something else (though not smart enough
* and is also too stupid to handle the sibling stuff).
*/
switch (event->xclient.data.l[2])
{
case Above:
meta_window_raise (window);
break;
case Below:
meta_window_lower (window);
break;
case TopIf:
case BottomIf:
case Opposite:
break;
}
}
}
#endif
/**
* This is the most important function in the whole program. It is the heart,
* it is the nexus, it is the Grand Central Station of Mutter's world.
* When we create a MetaDisplay, we ask GDK to pass *all* events for *all*
* windows to this function. So every time anything happens that we might
* want to know about, this function gets called. You see why it gets a bit
* busy around here. Most of this function is a ginormous switch statement
* dealing with all the kinds of events that might turn up.
*
* \param event The event that just happened
* \param data The MetaDisplay that events are coming from, cast to a gpointer
* so that it can be sent to a callback
*
* \ingroup main
*/
static gboolean
event_callback (XEvent *event,
gpointer data)
{
MetaWindow *window;
MetaWindow *property_for_window;
MetaDisplay *display;
Window modified;
gboolean frame_was_receiver;
gboolean filter_out_event;
display = data;
#ifdef WITH_VERBOSE_MODE
if (dump_events)
meta_spew_event (display, event);
#endif
#ifdef HAVE_STARTUP_NOTIFICATION
sn_display_process_event (display->sn_display, event);
#endif
filter_out_event = FALSE;
display->current_time = event_get_time (display, event);
display->xinerama_cache_invalidated = TRUE;
modified = event_get_modified_window (display, event);
if (event->type == UnmapNotify)
{
if (meta_ui_window_should_not_cause_focus (display->xdisplay,
modified))
{
add_ignored_serial (display, event->xany.serial);
meta_topic (META_DEBUG_FOCUS,
"Adding EnterNotify serial %lu to ignored focus serials\n",
event->xany.serial);
}
}
else if (event->type == LeaveNotify &&
event->xcrossing.mode == NotifyUngrab &&
modified == display->ungrab_should_not_cause_focus_window)
{
add_ignored_serial (display, event->xany.serial);
meta_topic (META_DEBUG_FOCUS,
"Adding LeaveNotify serial %lu to ignored focus serials\n",
event->xany.serial);
}
if (modified != None)
window = meta_display_lookup_x_window (display, modified);
else
window = NULL;
/* We only want to respond to _NET_WM_USER_TIME property notify
* events on _NET_WM_USER_TIME_WINDOW windows; in particular,
* responding to UnmapNotify events is kind of bad.
*/
property_for_window = NULL;
if (window && modified == window->user_time_window)
{
property_for_window = window;
window = NULL;
}
frame_was_receiver = FALSE;
if (window &&
window->frame &&
modified == window->frame->xwindow)
{
/* Note that if the frame and the client both have an
* XGrabButton (as is normal with our setup), the event
* goes to the frame.
*/
frame_was_receiver = TRUE;
meta_topic (META_DEBUG_EVENTS, "Frame was receiver of event for %s\n",
window->desc);
}
#ifdef HAVE_XSYNC
if (META_DISPLAY_HAS_XSYNC (display) &&
event->type == (display->xsync_event_base + XSyncAlarmNotify) &&
((XSyncAlarmNotifyEvent*)event)->alarm == display->grab_sync_request_alarm)
{
filter_out_event = TRUE; /* GTK doesn't want to see this really */
if (display->grab_op != META_GRAB_OP_NONE &&
display->grab_window != NULL &&
grab_op_is_mouse (display->grab_op))
meta_window_handle_mouse_grab_op_event (display->grab_window, event);
}
#endif /* HAVE_XSYNC */
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (display) &&
event->type == (display->shape_event_base + ShapeNotify))
{
filter_out_event = TRUE; /* GTK doesn't want to see this really */
if (window && !frame_was_receiver)
{
XShapeEvent *sev = (XShapeEvent*) event;
if (sev->kind == ShapeBounding)
{
if (sev->shaped && !window->has_shape)
{
window->has_shape = TRUE;
meta_topic (META_DEBUG_SHAPES,
"Window %s now has a shape\n",
window->desc);
}
else if (!sev->shaped && window->has_shape)
{
window->has_shape = FALSE;
meta_topic (META_DEBUG_SHAPES,
"Window %s no longer has a shape\n",
window->desc);
}
else
{
meta_topic (META_DEBUG_SHAPES,
"Window %s shape changed\n",
window->desc);
}
if (window->frame)
{
window->frame->need_reapply_frame_shape = TRUE;
meta_warning("from event callback\n");
meta_window_queue (window, META_QUEUE_MOVE_RESIZE);
}
}
}
else
{
meta_topic (META_DEBUG_SHAPES,
"ShapeNotify not on a client window (window %s frame_was_receiver = %d)\n",
window ? window->desc : "(none)",
frame_was_receiver);
}
}
#endif /* HAVE_SHAPE */
if (window && ((event->type == KeyPress) || (event->type == ButtonPress)))
{
if (CurrentTime == display->current_time)
{
/* We can't use missing (i.e. invalid) timestamps to set user time,
* nor do we want to use them to sanity check other timestamps.
* See bug 313490 for more details.
*/
meta_warning ("Event has no timestamp! You may be using a broken "
"program such as xse. Please ask the authors of that "
"program to fix it.\n");
}
else
{
meta_window_set_user_time (window, display->current_time);
sanity_check_timestamps (display, display->current_time);
}
}
switch (event->type)
{
case KeyPress:
case KeyRelease:
meta_display_process_key_event (display, window, event);
break;
case ButtonPress:
if (event->xbutton.button == 4 || event->xbutton.button == 5)
{
if (display->compositor && window)
{
return meta_compositor_process_event (display->compositor,
event,
window);
}
else
return FALSE;
}
else if ((window &&
grab_op_is_mouse (display->grab_op) &&
display->grab_button != (int) event->xbutton.button &&
display->grab_window == window) ||
grab_op_is_keyboard (display->grab_op))
{
meta_topic (META_DEBUG_WINDOW_OPS,
"Ending grab op %u on window %s due to button press\n",
display->grab_op,
(display->grab_window ?
display->grab_window->desc :
"none"));
if (GRAB_OP_IS_WINDOW_SWITCH (display->grab_op))
{
MetaScreen *screen;
meta_topic (META_DEBUG_WINDOW_OPS,
"Syncing to old stack positions.\n");
screen =
meta_display_screen_for_root (display, event->xany.window);
if (screen!=NULL)
meta_stack_set_positions (screen->stack,
display->grab_old_window_stacking);
}
meta_display_end_grab_op (display,
event->xbutton.time);
}
else if (window && display->grab_op == META_GRAB_OP_NONE)
{
gboolean begin_move = FALSE;
unsigned int grab_mask;
gboolean unmodified;
grab_mask = display->window_grab_modifiers;
if (g_getenv ("MUTTER_DEBUG_BUTTON_GRABS"))
grab_mask |= ControlMask;
/* Two possible sources of an unmodified event; one is a
* client that's letting button presses pass through to the
* frame, the other is our focus_window_grab on unmodified
* button 1. So for all such events we focus the window.
*/
unmodified = (event->xbutton.state & grab_mask) == 0;
if (unmodified ||
event->xbutton.button == 1)
{
/* don't focus if frame received, will be lowered in
* frames.c or special-cased if the click was on a
* minimize/close button.
*/
if (!frame_was_receiver)
{
if (meta_prefs_get_raise_on_click ())
meta_window_raise (window);
else
meta_topic (META_DEBUG_FOCUS,
"Not raising window on click due to don't-raise-on-click option\n");
/* Don't focus panels--they must explicitly request focus.
* See bug 160470
*/
if (window->type != META_WINDOW_DOCK)
{
meta_topic (META_DEBUG_FOCUS,
"Focusing %s due to unmodified button %u press (display.c)\n",
window->desc, event->xbutton.button);
meta_window_focus (window, event->xbutton.time);
}
else
/* However, do allow terminals to lose focus due to new
* window mappings after the user clicks on a panel.
*/
display->allow_terminal_deactivation = TRUE;
}
/* you can move on alt-click but not on
* the click-to-focus
*/
if (!unmodified)
begin_move = TRUE;
}
else if (!unmodified && event->xbutton.button == meta_prefs_get_mouse_button_resize())
{
if (window->has_resize_func)
{
gboolean north, south;
gboolean west, east;
int root_x, root_y;
MetaGrabOp op;
meta_window_get_position (window, &root_x, &root_y);
west = event->xbutton.x_root < (root_x + 1 * window->rect.width / 3);
east = event->xbutton.x_root > (root_x + 2 * window->rect.width / 3);
north = event->xbutton.y_root < (root_y + 1 * window->rect.height / 3);
south = event->xbutton.y_root > (root_y + 2 * window->rect.height / 3);
if (north && west)
op = META_GRAB_OP_RESIZING_NW;
else if (north && east)
op = META_GRAB_OP_RESIZING_NE;
else if (south && west)
op = META_GRAB_OP_RESIZING_SW;
else if (south && east)
op = META_GRAB_OP_RESIZING_SE;
else if (north)
op = META_GRAB_OP_RESIZING_N;
else if (west)
op = META_GRAB_OP_RESIZING_W;
else if (east)
op = META_GRAB_OP_RESIZING_E;
else if (south)
op = META_GRAB_OP_RESIZING_S;
else /* Middle region is no-op to avoid user triggering wrong action */
op = META_GRAB_OP_NONE;
if (op != META_GRAB_OP_NONE)
meta_display_begin_grab_op (display,
window->screen,
window,
op,
TRUE,
FALSE,
event->xbutton.button,
0,
event->xbutton.time,
event->xbutton.x_root,
event->xbutton.y_root);
}
}
else if (event->xbutton.button == meta_prefs_get_mouse_button_menu())
{
if (meta_prefs_get_raise_on_click ())
meta_window_raise (window);
meta_window_show_menu (window,
event->xbutton.x_root,
event->xbutton.y_root,
event->xbutton.button,
event->xbutton.time);
}
if (!frame_was_receiver && unmodified)
{
/* This is from our synchronous grab since
* it has no modifiers and was on the client window
*/
int mode;
/* When clicking a different app in click-to-focus
* in application-based mode, and the different
* app is not a dock or desktop, eat the focus click.
*/
if (meta_prefs_get_focus_mode () == META_FOCUS_MODE_CLICK &&
meta_prefs_get_application_based () &&
!window->has_focus &&
window->type != META_WINDOW_DOCK &&
window->type != META_WINDOW_DESKTOP &&
(display->focus_window == NULL ||
!meta_window_same_application (window,
display->focus_window)))
mode = AsyncPointer; /* eat focus click */
else
mode = ReplayPointer; /* give event back */
meta_verbose ("Allowing events mode %s time %u\n",
mode == AsyncPointer ? "AsyncPointer" : "ReplayPointer",
(unsigned int)event->xbutton.time);
XAllowEvents (display->xdisplay,
mode, event->xbutton.time);
}
if (begin_move && window->has_move_func)
{
meta_display_begin_grab_op (display,
window->screen,
window,
META_GRAB_OP_MOVING,
TRUE,
FALSE,
event->xbutton.button,
0,
event->xbutton.time,
event->xbutton.x_root,
event->xbutton.y_root);
}
}
break;
case ButtonRelease:
if (display->grab_window == window &&
grab_op_is_mouse (display->grab_op))
meta_window_handle_mouse_grab_op_event (window, event);
break;
case MotionNotify:
if (display->grab_window == window &&
grab_op_is_mouse (display->grab_op))
meta_window_handle_mouse_grab_op_event (window, event);
break;
case EnterNotify:
if (display->grab_window == window &&
grab_op_is_mouse (display->grab_op))
{
meta_window_handle_mouse_grab_op_event (window, event);
break;
}
/* If the mouse switches screens, active the default window on the new
* screen; this will make keybindings and workspace-launched items
* actually appear on the right screen.
*/
{
MetaScreen *new_screen =
meta_display_screen_for_root (display, event->xcrossing.root);
if (new_screen != NULL && display->active_screen != new_screen)
meta_workspace_focus_default_window (new_screen->active_workspace,
NULL,
event->xcrossing.time);
}
/* Check if we've entered a window; do this even if window->has_focus to
* avoid races.
*/
if (window && !serial_is_ignored (display, event->xany.serial) &&
event->xcrossing.mode != NotifyGrab &&
event->xcrossing.mode != NotifyUngrab &&
event->xcrossing.detail != NotifyInferior &&
meta_display_focus_sentinel_clear (display))
{
switch (meta_prefs_get_focus_mode ())
{
case META_FOCUS_MODE_SLOPPY:
case META_FOCUS_MODE_MOUSE:
display->mouse_mode = TRUE;
if (window->type != META_WINDOW_DOCK &&
window->type != META_WINDOW_DESKTOP)
{
meta_topic (META_DEBUG_FOCUS,
"Focusing %s due to enter notify with serial %lu "
"at time %lu, and setting display->mouse_mode to "
"TRUE.\n",
window->desc,
event->xany.serial,
event->xcrossing.time);
meta_window_focus (window, event->xcrossing.time);
/* stop ignoring stuff */
reset_ignores (display);
if (meta_prefs_get_auto_raise ())
{
meta_display_queue_autoraise_callback (display, window);
}
else
{
meta_topic (META_DEBUG_FOCUS,
"Auto raise is disabled\n");
}
}
/* In mouse focus mode, we defocus when the mouse *enters*
* the DESKTOP window, instead of defocusing on LeaveNotify.
* This is because having the mouse enter override-redirect
* child windows unfortunately causes LeaveNotify events that
* we can't distinguish from the mouse actually leaving the
* toplevel window as we expect. But, since we filter out
* EnterNotify events on override-redirect windows, this
* alternative mechanism works great.
*/
if (window->type == META_WINDOW_DESKTOP &&
meta_prefs_get_focus_mode() == META_FOCUS_MODE_MOUSE &&
display->expected_focus_window != NULL)
{
meta_topic (META_DEBUG_FOCUS,
"Unsetting focus from %s due to mouse entering "
"the DESKTOP window\n",
display->expected_focus_window->desc);
meta_display_focus_the_no_focus_window (display,
window->screen,
event->xcrossing.time);
}
break;
case META_FOCUS_MODE_CLICK:
break;
}
if (window->type == META_WINDOW_DOCK)
meta_window_raise (window);
}
break;
case LeaveNotify:
if (display->grab_window == window &&
grab_op_is_mouse (display->grab_op))
meta_window_handle_mouse_grab_op_event (window, event);
else if (window != NULL)
{
if (window->type == META_WINDOW_DOCK &&
event->xcrossing.mode != NotifyGrab &&
event->xcrossing.mode != NotifyUngrab &&
!window->has_focus)
meta_window_lower (window);
}
break;
case FocusIn:
case FocusOut:
if (window)
{
meta_window_notify_focus (window, event);
}
else if (meta_display_xwindow_is_a_no_focus_window (display,
event->xany.window))
{
meta_topic (META_DEBUG_FOCUS,
"Focus %s event received on no_focus_window 0x%lx "
"mode %s detail %s\n",
event->type == FocusIn ? "in" :
event->type == FocusOut ? "out" :
"???",
event->xany.window,
meta_event_mode_to_string (event->xfocus.mode),
meta_event_detail_to_string (event->xfocus.detail));
}
else
{
MetaScreen *screen =
meta_display_screen_for_root(display,
event->xany.window);
if (screen == NULL)
break;
meta_topic (META_DEBUG_FOCUS,
"Focus %s event received on root window 0x%lx "
"mode %s detail %s\n",
event->type == FocusIn ? "in" :
event->type == FocusOut ? "out" :
"???",
event->xany.window,
meta_event_mode_to_string (event->xfocus.mode),
meta_event_detail_to_string (event->xfocus.detail));
if (event->type == FocusIn &&
event->xfocus.detail == NotifyDetailNone)
{
meta_topic (META_DEBUG_FOCUS,
"Focus got set to None, probably due to "
"brain-damage in the X protocol (see bug "
"125492). Setting the default focus window.\n");
meta_workspace_focus_default_window (screen->active_workspace,
NULL,
meta_display_get_current_time_roundtrip (display));
}
else if (event->type == FocusIn &&
event->xfocus.mode == NotifyNormal &&
event->xfocus.detail == NotifyInferior)
{
meta_topic (META_DEBUG_FOCUS,
"Focus got set to root window, probably due to "
"gnome-session logout dialog usage (see bug "
"153220). Setting the default focus window.\n");
meta_workspace_focus_default_window (screen->active_workspace,
NULL,
meta_display_get_current_time_roundtrip (display));
}
}
break;
case KeymapNotify:
break;
case Expose:
break;
case GraphicsExpose:
break;
case NoExpose:
break;
case VisibilityNotify:
break;
case CreateNotify:
break;
case DestroyNotify:
if (window)
{
/* FIXME: It sucks that DestroyNotify events don't come with
* a timestamp; could we do something better here? Maybe X
* will change one day?
*/
guint32 timestamp;
timestamp = meta_display_get_current_time_roundtrip (display);
if (display->grab_op != META_GRAB_OP_NONE &&
display->grab_window == window)
meta_display_end_grab_op (display, timestamp);
if (frame_was_receiver)
{
meta_warning ("Unexpected destruction of frame 0x%lx, not sure if this should silently fail or be considered a bug\n",
window->frame->xwindow);
meta_error_trap_push (display);
meta_window_destroy_frame (window->frame->window);
meta_error_trap_pop (display, FALSE);
}
else
{
/* Unmanage destroyed window */
meta_window_unmanage (window, timestamp);
window = NULL;
}
}
break;
case UnmapNotify:
if (window)
{
/* FIXME: It sucks that UnmapNotify events don't come with
* a timestamp; could we do something better here? Maybe X
* will change one day?
*/
guint32 timestamp;
timestamp = meta_display_get_current_time_roundtrip (display);
if (display->grab_op != META_GRAB_OP_NONE &&
display->grab_window == window &&
((window->frame == NULL) || !window->frame->mapped))
meta_display_end_grab_op (display, timestamp);
if (!frame_was_receiver)
{
if (window->unmaps_pending == 0)
{
meta_topic (META_DEBUG_WINDOW_STATE,
"Window %s withdrawn\n",
window->desc);
if (!window->override_redirect)
meta_effect_run_close (window, NULL, NULL);
/* Unmanage withdrawn window */
window->withdrawn = TRUE;
meta_window_unmanage (window, timestamp);
window = NULL;
}
else
{
window->unmaps_pending -= 1;
meta_topic (META_DEBUG_WINDOW_STATE,
"Received pending unmap, %d now pending\n",
window->unmaps_pending);
}
}
/* Unfocus on UnmapNotify, do this after the possible
* window_free above so that window_free can see if window->has_focus
* and move focus to another window
*/
if (window)
meta_window_notify_focus (window, event);
}
break;
case MapNotify:
/* NB: override redirect windows wont cause a map request so we
* watch out for map notifies against any root windows too if a
* compositor is enabled: */
if (display->compositor && window == NULL
&& meta_display_screen_for_root (display, event->xmap.event))
{
window = meta_window_new (display, event->xmap.window,
FALSE);
}
break;
case MapRequest:
if (window == NULL)
{
window = meta_window_new (display, event->xmaprequest.window,
FALSE);
}
/* if frame was receiver it's some malicious send event or something */
else if (!frame_was_receiver && window)
{
meta_verbose ("MapRequest on %s mapped = %d minimized = %d\n",
window->desc, window->mapped, window->minimized);
if (window->minimized)
{
meta_window_unminimize (window);
if (window->workspace != window->screen->active_workspace)
{
meta_verbose ("Changing workspace due to MapRequest mapped = %d minimized = %d\n",
window->mapped, window->minimized);
meta_window_change_workspace (window,
window->screen->active_workspace);
}
}
}
break;
case ReparentNotify:
break;
case ConfigureNotify:
if (window && window->override_redirect)
meta_window_configure_notify (window, &event->xconfigure);
else
/* Handle screen resize */
{
MetaScreen *screen;
screen = meta_display_screen_for_root (display,
event->xconfigure.window);
if (screen != NULL)
{
#ifdef HAVE_RANDR
/* do the resize the official way */
XRRUpdateConfiguration (event);
#else
/* poke around in Xlib */
screen->xscreen->width = event->xconfigure.width;
screen->xscreen->height = event->xconfigure.height;
#endif
meta_screen_resize (screen,
event->xconfigure.width,
event->xconfigure.height);
}
}
break;
case ConfigureRequest:
/* This comment and code is found in both twm and fvwm */
/*
* According to the July 27, 1988 ICCCM draft, we should ignore size and
* position fields in the WM_NORMAL_HINTS property when we map a window.
* Instead, we'll read the current geometry. Therefore, we should respond
* to configuration requests for windows which have never been mapped.
*/
if (window == NULL)
{
unsigned int xwcm;
XWindowChanges xwc;
xwcm = event->xconfigurerequest.value_mask &
(CWX | CWY | CWWidth | CWHeight | CWBorderWidth);
xwc.x = event->xconfigurerequest.x;
xwc.y = event->xconfigurerequest.y;
xwc.width = event->xconfigurerequest.width;
xwc.height = event->xconfigurerequest.height;
xwc.border_width = event->xconfigurerequest.border_width;
meta_verbose ("Configuring withdrawn window to %d,%d %dx%d border %d (some values may not be in mask)\n",
xwc.x, xwc.y, xwc.width, xwc.height, xwc.border_width);
meta_error_trap_push (display);
XConfigureWindow (display->xdisplay, event->xconfigurerequest.window,
xwcm, &xwc);
meta_error_trap_pop (display, FALSE);
}
else
{
if (!frame_was_receiver)
meta_window_configure_request (window, event);
}
break;
case GravityNotify:
break;
case ResizeRequest:
break;
case CirculateNotify:
break;
case CirculateRequest:
break;
case PropertyNotify:
{
MetaGroup *group;
MetaScreen *screen;
if (window && !frame_was_receiver)
meta_window_property_notify (window, event);
else if (property_for_window && !frame_was_receiver)
meta_window_property_notify (property_for_window, event);
group = meta_display_lookup_group (display,
event->xproperty.window);
if (group != NULL)
meta_group_property_notify (group, event);
screen = NULL;
if (window == NULL &&
group == NULL) /* window/group != NULL means it wasn't a root window */
screen = meta_display_screen_for_root (display,
event->xproperty.window);
if (screen != NULL)
{
if (event->xproperty.atom ==
display->atom__NET_DESKTOP_LAYOUT)
meta_screen_update_workspace_layout (screen);
else if (event->xproperty.atom ==
display->atom__NET_DESKTOP_NAMES)
meta_screen_update_workspace_names (screen);
#if 0
else if (event->xproperty.atom ==
display->atom__NET_RESTACK_WINDOW)
handle_net_restack_window (display, event);
#endif
/* we just use this property as a sentinel to avoid
* certain race conditions. See the comment for the
* sentinel_counter variable declaration in display.h
*/
if (event->xproperty.atom ==
display->atom__MUTTER_SENTINEL)
{
meta_display_decrement_focus_sentinel (display);
}
}
}
break;
case SelectionClear:
/* do this here instead of at end of function
* so we can return
*/
/* FIXME: Clearing display->current_time here makes no sense to
* me; who put this here and why?
*/
display->current_time = CurrentTime;
process_selection_clear (display, event);
/* Note that processing that may have resulted in
* closing the display... so return right away.
*/
return FALSE;
case SelectionRequest:
process_selection_request (display, event);
break;
case SelectionNotify:
break;
case ColormapNotify:
if (window && !frame_was_receiver)
window->colormap = event->xcolormap.colormap;
break;
case ClientMessage:
if (window)
{
if (!frame_was_receiver)
meta_window_client_message (window, event);
}
else
{
MetaScreen *screen;
screen = meta_display_screen_for_root (display,
event->xclient.window);
if (screen)
{
if (event->xclient.message_type ==
display->atom__NET_CURRENT_DESKTOP)
{
int space;
MetaWorkspace *workspace;
guint32 time;
space = event->xclient.data.l[0];
time = event->xclient.data.l[1];
meta_verbose ("Request to change current workspace to %d with "
"specified timestamp of %u\n",
space, time);
workspace =
meta_screen_get_workspace_by_index (screen,
space);
/* Handle clients using the older version of the spec... */
if (time == 0 && workspace)
{
meta_warning ("Received a NET_CURRENT_DESKTOP message "
"from a broken (outdated) client who sent "
"a 0 timestamp\n");
time = meta_display_get_current_time_roundtrip (display);
}
if (workspace)
meta_workspace_activate (workspace, time);
else
meta_verbose ("Don't know about workspace %d\n", space);
}
else if (event->xclient.message_type ==
display->atom__NET_NUMBER_OF_DESKTOPS)
{
int num_spaces;
num_spaces = event->xclient.data.l[0];
meta_verbose ("Request to set number of workspaces to %d\n",
num_spaces);
meta_prefs_set_num_workspaces (num_spaces);
}
else if (event->xclient.message_type ==
display->atom__NET_SHOWING_DESKTOP)
{
gboolean showing_desktop;
guint32 timestamp;
showing_desktop = event->xclient.data.l[0] != 0;
/* FIXME: Braindead protocol doesn't have a timestamp */
timestamp = meta_display_get_current_time_roundtrip (display);
meta_verbose ("Request to %s desktop\n",
showing_desktop ? "show" : "hide");
if (showing_desktop)
meta_screen_show_desktop (screen, timestamp);
else
{
meta_screen_unshow_desktop (screen);
meta_workspace_focus_default_window (screen->active_workspace, NULL, timestamp);
}
}
else if (event->xclient.message_type ==
display->atom__MUTTER_RESTART_MESSAGE)
{
meta_verbose ("Received restart request\n");
meta_restart ();
}
else if (event->xclient.message_type ==
display->atom__MUTTER_RELOAD_THEME_MESSAGE)
{
meta_verbose ("Received reload theme request\n");
meta_ui_set_current_theme (meta_prefs_get_theme (),
TRUE);
meta_display_retheme_all ();
}
else if (event->xclient.message_type ==
display->atom__MUTTER_SET_KEYBINDINGS_MESSAGE)
{
meta_verbose ("Received set keybindings request = %d\n",
(int) event->xclient.data.l[0]);
meta_set_keybindings_disabled (!event->xclient.data.l[0]);
}
else if (event->xclient.message_type ==
display->atom__MUTTER_TOGGLE_VERBOSE)
{
meta_verbose ("Received toggle verbose message\n");
meta_set_verbose (!meta_is_verbose ());
}
else if (event->xclient.message_type ==
display->atom_WM_PROTOCOLS)
{
meta_verbose ("Received WM_PROTOCOLS message\n");
if ((Atom)event->xclient.data.l[0] == display->atom__NET_WM_PING)
{
process_pong_message (display, event);
/* We don't want ping reply events going into
* the GTK+ event loop because gtk+ will treat
* them as ping requests and send more replies.
*/
filter_out_event = TRUE;
}
}
}
if (event->xclient.message_type ==
display->atom__NET_REQUEST_FRAME_EXTENTS)
{
meta_verbose ("Received _NET_REQUEST_FRAME_EXTENTS message\n");
process_request_frame_extents (display, event);
}
}
break;
case MappingNotify:
{
gboolean ignore_current;
ignore_current = FALSE;
/* Check whether the next event is an identical MappingNotify
* event. If it is, ignore the current event, we'll update
* when we get the next one.
*/
if (XPending (display->xdisplay))
{
XEvent next_event;
XPeekEvent (display->xdisplay, &next_event);
if (next_event.type == MappingNotify &&
next_event.xmapping.request == event->xmapping.request)
ignore_current = TRUE;
}
if (!ignore_current)
{
/* Let XLib know that there is a new keyboard mapping.
*/
XRefreshKeyboardMapping (&event->xmapping);
meta_display_process_mapping_event (display, event);
}
}
break;
default:
#ifdef HAVE_XKB
if (event->type == display->xkb_base_event_type)
{
XkbAnyEvent *xkb_ev = (XkbAnyEvent *) event;
switch (xkb_ev->xkb_type)
{
case XkbBellNotify:
if (XSERVER_TIME_IS_BEFORE(display->last_bell_time,
xkb_ev->time - 1000))
{
display->last_bell_time = xkb_ev->time;
meta_bell_notify (display, xkb_ev);
}
break;
}
}
#endif
break;
}
if (display->compositor)
{
if (meta_compositor_process_event (display->compositor,
event,
window))
filter_out_event = TRUE;
}
display->current_time = CurrentTime;
return filter_out_event;
}
/* Return the window this has to do with, if any, rather
* than the frame or root window that was selecting
* for substructure
*/
static Window
event_get_modified_window (MetaDisplay *display,
XEvent *event)
{
switch (event->type)
{
case KeyPress:
case KeyRelease:
case ButtonPress:
case ButtonRelease:
case MotionNotify:
case FocusIn:
case FocusOut:
case KeymapNotify:
case Expose:
case GraphicsExpose:
case NoExpose:
case VisibilityNotify:
case ResizeRequest:
case PropertyNotify:
case SelectionClear:
case SelectionRequest:
case SelectionNotify:
case ColormapNotify:
case ClientMessage:
case EnterNotify:
case LeaveNotify:
return event->xany.window;
case CreateNotify:
return event->xcreatewindow.window;
case DestroyNotify:
return event->xdestroywindow.window;
case UnmapNotify:
return event->xunmap.window;
case MapNotify:
return event->xmap.window;
case MapRequest:
return event->xmaprequest.window;
case ReparentNotify:
return event->xreparent.window;
case ConfigureNotify:
return event->xconfigure.window;
case ConfigureRequest:
return event->xconfigurerequest.window;
case GravityNotify:
return event->xgravity.window;
case CirculateNotify:
return event->xcirculate.window;
case CirculateRequest:
return event->xcirculaterequest.window;
case MappingNotify:
return None;
default:
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (display) &&
event->type == (display->shape_event_base + ShapeNotify))
{
XShapeEvent *sev = (XShapeEvent*) event;
return sev->window;
}
#endif
return None;
}
}
static guint32
event_get_time (MetaDisplay *display,
XEvent *event)
{
switch (event->type)
{
case KeyPress:
case KeyRelease:
return event->xkey.time;
case ButtonPress:
case ButtonRelease:
return event->xbutton.time;
case MotionNotify:
return event->xmotion.time;
case PropertyNotify:
return event->xproperty.time;
case SelectionClear:
case SelectionRequest:
case SelectionNotify:
return event->xselection.time;
case EnterNotify:
case LeaveNotify:
return event->xcrossing.time;
case FocusIn:
case FocusOut:
case KeymapNotify:
case Expose:
case GraphicsExpose:
case NoExpose:
case MapNotify:
case UnmapNotify:
case VisibilityNotify:
case ResizeRequest:
case ColormapNotify:
case ClientMessage:
case CreateNotify:
case DestroyNotify:
case MapRequest:
case ReparentNotify:
case ConfigureNotify:
case ConfigureRequest:
case GravityNotify:
case CirculateNotify:
case CirculateRequest:
case MappingNotify:
default:
return CurrentTime;
}
}
#ifdef WITH_VERBOSE_MODE
const char*
meta_event_detail_to_string (int d)
{
const char *detail = "???";
switch (d)
{
/* We are an ancestor in the A<->B focus change relationship */
case NotifyAncestor:
detail = "NotifyAncestor";
break;
case NotifyDetailNone:
detail = "NotifyDetailNone";
break;
/* We are a descendant in the A<->B focus change relationship */
case NotifyInferior:
detail = "NotifyInferior";
break;
case NotifyNonlinear:
detail = "NotifyNonlinear";
break;
case NotifyNonlinearVirtual:
detail = "NotifyNonlinearVirtual";
break;
case NotifyPointer:
detail = "NotifyPointer";
break;
case NotifyPointerRoot:
detail = "NotifyPointerRoot";
break;
case NotifyVirtual:
detail = "NotifyVirtual";
break;
}
return detail;
}
#endif /* WITH_VERBOSE_MODE */
#ifdef WITH_VERBOSE_MODE
const char*
meta_event_mode_to_string (int m)
{
const char *mode = "???";
switch (m)
{
case NotifyNormal:
mode = "NotifyNormal";
break;
case NotifyGrab:
mode = "NotifyGrab";
break;
case NotifyUngrab:
mode = "NotifyUngrab";
break;
/* not sure any X implementations are missing this, but
* it seems to be absent from some docs.
*/
#ifdef NotifyWhileGrabbed
case NotifyWhileGrabbed:
mode = "NotifyWhileGrabbed";
break;
#endif
}
return mode;
}
#endif /* WITH_VERBOSE_MODE */
#ifdef WITH_VERBOSE_MODE
static const char*
stack_mode_to_string (int mode)
{
switch (mode)
{
case Above:
return "Above";
case Below:
return "Below";
case TopIf:
return "TopIf";
case BottomIf:
return "BottomIf";
case Opposite:
return "Opposite";
}
return "Unknown";
}
#endif /* WITH_VERBOSE_MODE */
#ifdef WITH_VERBOSE_MODE
static char*
key_event_description (Display *xdisplay,
XEvent *event)
{
KeySym keysym;
const char *str;
keysym = XKeycodeToKeysym (xdisplay, event->xkey.keycode, 0);
str = XKeysymToString (keysym);
return g_strdup_printf ("Key '%s' state 0x%x",
str ? str : "none", event->xkey.state);
}
#endif /* WITH_VERBOSE_MODE */
#ifdef HAVE_XSYNC
#ifdef WITH_VERBOSE_MODE
static gint64
sync_value_to_64 (const XSyncValue *value)
{
gint64 v;
v = XSyncValueLow32 (*value);
v |= (((gint64)XSyncValueHigh32 (*value)) << 32);
return v;
}
#endif /* WITH_VERBOSE_MODE */
#ifdef WITH_VERBOSE_MODE
static const char*
alarm_state_to_string (XSyncAlarmState state)
{
switch (state)
{
case XSyncAlarmActive:
return "Active";
case XSyncAlarmInactive:
return "Inactive";
case XSyncAlarmDestroyed:
return "Destroyed";
default:
return "(unknown)";
}
}
#endif /* WITH_VERBOSE_MODE */
#endif /* HAVE_XSYNC */
#ifdef WITH_VERBOSE_MODE
static void
meta_spew_event (MetaDisplay *display,
XEvent *event)
{
const char *name = NULL;
char *extra = NULL;
char *winname;
MetaScreen *screen;
if (!meta_is_verbose())
return;
/* filter overnumerous events */
if (event->type == Expose || event->type == MotionNotify ||
event->type == NoExpose)
return;
switch (event->type)
{
case KeyPress:
name = "KeyPress";
extra = key_event_description (display->xdisplay, event);
break;
case KeyRelease:
name = "KeyRelease";
extra = key_event_description (display->xdisplay, event);
break;
case ButtonPress:
name = "ButtonPress";
extra = g_strdup_printf ("button %u state 0x%x x %d y %d root 0x%lx same_screen %d",
event->xbutton.button,
event->xbutton.state,
event->xbutton.x,
event->xbutton.y,
event->xbutton.root,
event->xbutton.same_screen);
break;
case ButtonRelease:
name = "ButtonRelease";
extra = g_strdup_printf ("button %u state 0x%x x %d y %d root 0x%lx same_screen %d",
event->xbutton.button,
event->xbutton.state,
event->xbutton.x,
event->xbutton.y,
event->xbutton.root,
event->xbutton.same_screen);
break;
case MotionNotify:
name = "MotionNotify";
extra = g_strdup_printf ("win: 0x%lx x: %d y: %d",
event->xmotion.window,
event->xmotion.x,
event->xmotion.y);
break;
case EnterNotify:
name = "EnterNotify";
extra = g_strdup_printf ("win: 0x%lx root: 0x%lx subwindow: 0x%lx mode: %s detail: %s focus: %d x: %d y: %d",
event->xcrossing.window,
event->xcrossing.root,
event->xcrossing.subwindow,
meta_event_mode_to_string (event->xcrossing.mode),
meta_event_detail_to_string (event->xcrossing.detail),
event->xcrossing.focus,
event->xcrossing.x,
event->xcrossing.y);
break;
case LeaveNotify:
name = "LeaveNotify";
extra = g_strdup_printf ("win: 0x%lx root: 0x%lx subwindow: 0x%lx mode: %s detail: %s focus: %d x: %d y: %d",
event->xcrossing.window,
event->xcrossing.root,
event->xcrossing.subwindow,
meta_event_mode_to_string (event->xcrossing.mode),
meta_event_detail_to_string (event->xcrossing.detail),
event->xcrossing.focus,
event->xcrossing.x,
event->xcrossing.y);
break;
case FocusIn:
name = "FocusIn";
extra = g_strdup_printf ("detail: %s mode: %s\n",
meta_event_detail_to_string (event->xfocus.detail),
meta_event_mode_to_string (event->xfocus.mode));
break;
case FocusOut:
name = "FocusOut";
extra = g_strdup_printf ("detail: %s mode: %s\n",
meta_event_detail_to_string (event->xfocus.detail),
meta_event_mode_to_string (event->xfocus.mode));
break;
case KeymapNotify:
name = "KeymapNotify";
break;
case Expose:
name = "Expose";
break;
case GraphicsExpose:
name = "GraphicsExpose";
break;
case NoExpose:
name = "NoExpose";
break;
case VisibilityNotify:
name = "VisibilityNotify";
break;
case CreateNotify:
name = "CreateNotify";
extra = g_strdup_printf ("parent: 0x%lx window: 0x%lx",
event->xcreatewindow.parent,
event->xcreatewindow.window);
break;
case DestroyNotify:
name = "DestroyNotify";
extra = g_strdup_printf ("event: 0x%lx window: 0x%lx",
event->xdestroywindow.event,
event->xdestroywindow.window);
break;
case UnmapNotify:
name = "UnmapNotify";
extra = g_strdup_printf ("event: 0x%lx window: 0x%lx from_configure: %d",
event->xunmap.event,
event->xunmap.window,
event->xunmap.from_configure);
break;
case MapNotify:
name = "MapNotify";
extra = g_strdup_printf ("event: 0x%lx window: 0x%lx override_redirect: %d",
event->xmap.event,
event->xmap.window,
event->xmap.override_redirect);
break;
case MapRequest:
name = "MapRequest";
extra = g_strdup_printf ("window: 0x%lx parent: 0x%lx\n",
event->xmaprequest.window,
event->xmaprequest.parent);
break;
case ReparentNotify:
name = "ReparentNotify";
extra = g_strdup_printf ("window: 0x%lx parent: 0x%lx event: 0x%lx\n",
event->xreparent.window,
event->xreparent.parent,
event->xreparent.event);
break;
case ConfigureNotify:
name = "ConfigureNotify";
extra = g_strdup_printf ("x: %d y: %d w: %d h: %d above: 0x%lx override_redirect: %d",
event->xconfigure.x,
event->xconfigure.y,
event->xconfigure.width,
event->xconfigure.height,
event->xconfigure.above,
event->xconfigure.override_redirect);
break;
case ConfigureRequest:
name = "ConfigureRequest";
extra = g_strdup_printf ("parent: 0x%lx window: 0x%lx x: %d %sy: %d %sw: %d %sh: %d %sborder: %d %sabove: %lx %sstackmode: %s %s",
event->xconfigurerequest.parent,
event->xconfigurerequest.window,
event->xconfigurerequest.x,
event->xconfigurerequest.value_mask &
CWX ? "" : "(unset) ",
event->xconfigurerequest.y,
event->xconfigurerequest.value_mask &
CWY ? "" : "(unset) ",
event->xconfigurerequest.width,
event->xconfigurerequest.value_mask &
CWWidth ? "" : "(unset) ",
event->xconfigurerequest.height,
event->xconfigurerequest.value_mask &
CWHeight ? "" : "(unset) ",
event->xconfigurerequest.border_width,
event->xconfigurerequest.value_mask &
CWBorderWidth ? "" : "(unset)",
event->xconfigurerequest.above,
event->xconfigurerequest.value_mask &
CWSibling ? "" : "(unset)",
stack_mode_to_string (event->xconfigurerequest.detail),
event->xconfigurerequest.value_mask &
CWStackMode ? "" : "(unset)");
break;
case GravityNotify:
name = "GravityNotify";
break;
case ResizeRequest:
name = "ResizeRequest";
extra = g_strdup_printf ("width = %d height = %d",
event->xresizerequest.width,
event->xresizerequest.height);
break;
case CirculateNotify:
name = "CirculateNotify";
break;
case CirculateRequest:
name = "CirculateRequest";
break;
case PropertyNotify:
{
char *str;
const char *state;
name = "PropertyNotify";
meta_error_trap_push (display);
str = XGetAtomName (display->xdisplay,
event->xproperty.atom);
meta_error_trap_pop (display, TRUE);
if (event->xproperty.state == PropertyNewValue)
state = "PropertyNewValue";
else if (event->xproperty.state == PropertyDelete)
state = "PropertyDelete";
else
state = "???";
extra = g_strdup_printf ("atom: %s state: %s",
str ? str : "(unknown atom)",
state);
meta_XFree (str);
}
break;
case SelectionClear:
name = "SelectionClear";
break;
case SelectionRequest:
name = "SelectionRequest";
break;
case SelectionNotify:
name = "SelectionNotify";
break;
case ColormapNotify:
name = "ColormapNotify";
break;
case ClientMessage:
{
char *str;
name = "ClientMessage";
meta_error_trap_push (display);
str = XGetAtomName (display->xdisplay,
event->xclient.message_type);
meta_error_trap_pop (display, TRUE);
extra = g_strdup_printf ("type: %s format: %d\n",
str ? str : "(unknown atom)",
event->xclient.format);
meta_XFree (str);
}
break;
case MappingNotify:
name = "MappingNotify";
break;
default:
#ifdef HAVE_XSYNC
if (META_DISPLAY_HAS_XSYNC (display) &&
event->type == (display->xsync_event_base + XSyncAlarmNotify))
{
XSyncAlarmNotifyEvent *aevent = (XSyncAlarmNotifyEvent*) event;
name = "XSyncAlarmNotify";
extra =
g_strdup_printf ("alarm: 0x%lx"
" counter_value: %" G_GINT64_FORMAT
" alarm_value: %" G_GINT64_FORMAT
" time: %u alarm state: %s",
aevent->alarm,
(gint64) sync_value_to_64 (&aevent->counter_value),
(gint64) sync_value_to_64 (&aevent->alarm_value),
(unsigned int)aevent->time,
alarm_state_to_string (aevent->state));
}
else
#endif /* HAVE_XSYNC */
#ifdef HAVE_SHAPE
if (META_DISPLAY_HAS_SHAPE (display) &&
event->type == (display->shape_event_base + ShapeNotify))
{
XShapeEvent *sev = (XShapeEvent*) event;
name = "ShapeNotify";
extra =
g_strdup_printf ("kind: %s "
"x: %d y: %d w: %u h: %u "
"shaped: %d",
sev->kind == ShapeBounding ?
"ShapeBounding" :
(sev->kind == ShapeClip ?
"ShapeClip" : "(unknown)"),
sev->x, sev->y, sev->width, sev->height,
sev->shaped);
}
else
#endif /* HAVE_SHAPE */
{
name = "(Unknown event)";
extra = g_strdup_printf ("type: %d", event->xany.type);
}
break;
}
screen = meta_display_screen_for_root (display, event->xany.window);
if (screen)
winname = g_strdup_printf ("root %d", screen->number);
else
winname = g_strdup_printf ("0x%lx", event->xany.window);
meta_topic (META_DEBUG_EVENTS,
"%s on %s%s %s %sserial %lu\n", name, winname,
extra ? ":" : "", extra ? extra : "",
event->xany.send_event ? "SEND " : "",
event->xany.serial);
g_free (winname);
if (extra)
g_free (extra);
}
#endif /* WITH_VERBOSE_MODE */
MetaWindow*
meta_display_lookup_x_window (MetaDisplay *display,
Window xwindow)
{
return g_hash_table_lookup (display->window_ids, &xwindow);
}
void
meta_display_register_x_window (MetaDisplay *display,
Window *xwindowp,
MetaWindow *window)
{
g_return_if_fail (g_hash_table_lookup (display->window_ids, xwindowp) == NULL);
g_hash_table_insert (display->window_ids, xwindowp, window);
}
void
meta_display_unregister_x_window (MetaDisplay *display,
Window xwindow)
{
g_return_if_fail (g_hash_table_lookup (display->window_ids, &xwindow) != NULL);
g_hash_table_remove (display->window_ids, &xwindow);
/* Remove any pending pings */
remove_pending_pings_for_window (display, xwindow);
}
gboolean
meta_display_xwindow_is_a_no_focus_window (MetaDisplay *display,
Window xwindow)
{
gboolean is_a_no_focus_window = FALSE;
GSList *temp = display->screens;
while (temp != NULL) {
MetaScreen *screen = temp->data;
if (screen->no_focus_window == xwindow) {
is_a_no_focus_window = TRUE;
break;
}
temp = temp->next;
}
return is_a_no_focus_window;
}
Cursor
meta_display_create_x_cursor (MetaDisplay *display,
MetaCursor cursor)
{
Cursor xcursor;
guint glyph;
switch (cursor)
{
case META_CURSOR_DEFAULT:
glyph = XC_left_ptr;
break;
case META_CURSOR_NORTH_RESIZE:
glyph = XC_top_side;
break;
case META_CURSOR_SOUTH_RESIZE:
glyph = XC_bottom_side;
break;
case META_CURSOR_WEST_RESIZE:
glyph = XC_left_side;
break;
case META_CURSOR_EAST_RESIZE:
glyph = XC_right_side;
break;
case META_CURSOR_SE_RESIZE:
glyph = XC_bottom_right_corner;
break;
case META_CURSOR_SW_RESIZE:
glyph = XC_bottom_left_corner;
break;
case META_CURSOR_NE_RESIZE:
glyph = XC_top_right_corner;
break;
case META_CURSOR_NW_RESIZE:
glyph = XC_top_left_corner;
break;
case META_CURSOR_MOVE_OR_RESIZE_WINDOW:
glyph = XC_fleur;
break;
case META_CURSOR_BUSY:
glyph = XC_watch;
break;
default:
g_assert_not_reached ();
glyph = 0; /* silence compiler */
break;
}
xcursor = XCreateFontCursor (display->xdisplay, glyph);
return xcursor;
}
static Cursor
xcursor_for_op (MetaDisplay *display,
MetaGrabOp op)
{
MetaCursor cursor = META_CURSOR_DEFAULT;
switch (op)
{
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
cursor = META_CURSOR_SE_RESIZE;
break;
case META_GRAB_OP_RESIZING_S:
case META_GRAB_OP_KEYBOARD_RESIZING_S:
cursor = META_CURSOR_SOUTH_RESIZE;
break;
case META_GRAB_OP_RESIZING_SW:
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
cursor = META_CURSOR_SW_RESIZE;
break;
case META_GRAB_OP_RESIZING_N:
case META_GRAB_OP_KEYBOARD_RESIZING_N:
cursor = META_CURSOR_NORTH_RESIZE;
break;
case META_GRAB_OP_RESIZING_NE:
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
cursor = META_CURSOR_NE_RESIZE;
break;
case META_GRAB_OP_RESIZING_NW:
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
cursor = META_CURSOR_NW_RESIZE;
break;
case META_GRAB_OP_RESIZING_W:
case META_GRAB_OP_KEYBOARD_RESIZING_W:
cursor = META_CURSOR_WEST_RESIZE;
break;
case META_GRAB_OP_RESIZING_E:
case META_GRAB_OP_KEYBOARD_RESIZING_E:
cursor = META_CURSOR_EAST_RESIZE;
break;
case META_GRAB_OP_MOVING:
case META_GRAB_OP_KEYBOARD_MOVING:
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
cursor = META_CURSOR_MOVE_OR_RESIZE_WINDOW;
break;
default:
break;
}
if (cursor == META_CURSOR_DEFAULT)
return None;
return meta_display_create_x_cursor (display, cursor);
}
void
meta_display_set_grab_op_cursor (MetaDisplay *display,
MetaScreen *screen,
MetaGrabOp op,
gboolean change_pointer,
Window grab_xwindow,
guint32 timestamp)
{
Cursor cursor;
cursor = xcursor_for_op (display, op);
#define GRAB_MASK (PointerMotionMask | \
ButtonPressMask | ButtonReleaseMask | \
EnterWindowMask | LeaveWindowMask)
if (change_pointer)
{
meta_error_trap_push_with_return (display);
XChangeActivePointerGrab (display->xdisplay,
GRAB_MASK,
cursor,
timestamp);
meta_topic (META_DEBUG_WINDOW_OPS,
"Changed pointer with XChangeActivePointerGrab()\n");
if (meta_error_trap_pop_with_return (display, FALSE) != Success)
{
meta_topic (META_DEBUG_WINDOW_OPS,
"Error trapped from XChangeActivePointerGrab()\n");
if (display->grab_have_pointer)
display->grab_have_pointer = FALSE;
}
}
else
{
g_assert (screen != NULL);
meta_error_trap_push (display);
if (XGrabPointer (display->xdisplay,
grab_xwindow,
False,
GRAB_MASK,
GrabModeAsync, GrabModeAsync,
screen->xroot,
cursor,
timestamp) == GrabSuccess)
{
display->grab_have_pointer = TRUE;
meta_topic (META_DEBUG_WINDOW_OPS,
"XGrabPointer() returned GrabSuccess time %u\n",
timestamp);
}
else
{
meta_topic (META_DEBUG_WINDOW_OPS,
"XGrabPointer() failed time %u\n",
timestamp);
}
meta_error_trap_pop (display, TRUE);
}
#undef GRAB_MASK
if (cursor != None)
XFreeCursor (display->xdisplay, cursor);
}
gboolean
meta_display_begin_grab_op (MetaDisplay *display,
MetaScreen *screen,
MetaWindow *window,
MetaGrabOp op,
gboolean pointer_already_grabbed,
gboolean frame_action,
int button,
gulong modmask,
guint32 timestamp,
int root_x,
int root_y)
{
Window grab_xwindow;
if (grab_op_is_mouse (op) && meta_grab_op_is_moving (op))
{
if (display->compositor)
{
meta_compositor_begin_move (display->compositor,
window, &window->rect,
root_x, root_y);
}
}
meta_topic (META_DEBUG_WINDOW_OPS,
"Doing grab op %u on window %s button %d pointer already grabbed: %d pointer pos %d,%d\n",
op, window ? window->desc : "none", button, pointer_already_grabbed,
root_x, root_y);
if (display->grab_op != META_GRAB_OP_NONE)
{
if (window)
meta_warning ("Attempt to perform window operation %u on window %s when operation %u on %s already in effect\n",
op, window->desc, display->grab_op,
display->grab_window ? display->grab_window->desc : "none");
return FALSE;
}
if (window &&
(meta_grab_op_is_moving (op) || meta_grab_op_is_resizing (op)))
{
if (meta_prefs_get_raise_on_click ())
meta_window_raise (window);
else
{
display->grab_initial_x = root_x;
display->grab_initial_y = root_y;
display->grab_threshold_movement_reached = FALSE;
}
}
/* FIXME:
* If we have no MetaWindow we do our best
* and try to do the grab on the RootWindow.
* This will fail if anyone else has any
* key grab on the RootWindow.
*/
if (window)
grab_xwindow = window->frame ? window->frame->xwindow : window->xwindow;
else
grab_xwindow = screen->xroot;
display->grab_have_pointer = FALSE;
if (pointer_already_grabbed)
display->grab_have_pointer = TRUE;
meta_display_set_grab_op_cursor (display, screen, op, FALSE, grab_xwindow,
timestamp);
if (!display->grab_have_pointer)
{
meta_topic (META_DEBUG_WINDOW_OPS,
"XGrabPointer() failed\n");
return FALSE;
}
/* Grab keys for keyboard ops and mouse move/resizes; see #126497 */
if (grab_op_is_keyboard (op) || grab_op_is_mouse_only (op))
{
if (window)
display->grab_have_keyboard =
meta_window_grab_all_keys (window, timestamp);
else
display->grab_have_keyboard =
meta_screen_grab_all_keys (screen, timestamp);
if (!display->grab_have_keyboard)
{
meta_topic (META_DEBUG_WINDOW_OPS,
"grabbing all keys failed, ungrabbing pointer\n");
XUngrabPointer (display->xdisplay, timestamp);
display->grab_have_pointer = FALSE;
return FALSE;
}
}
display->grab_op = op;
display->grab_window = window;
display->grab_screen = screen;
display->grab_xwindow = grab_xwindow;
display->grab_button = button;
display->grab_mask = modmask;
display->grab_anchor_root_x = root_x;
display->grab_anchor_root_y = root_y;
display->grab_latest_motion_x = root_x;
display->grab_latest_motion_y = root_y;
display->grab_last_moveresize_time.tv_sec = 0;
display->grab_last_moveresize_time.tv_usec = 0;
display->grab_motion_notify_time = 0;
display->grab_old_window_stacking = NULL;
#ifdef HAVE_XSYNC
display->grab_sync_request_alarm = None;
display->grab_last_user_action_was_snap = FALSE;
#endif
display->grab_was_cancelled = FALSE;
display->grab_frame_action = frame_action;
if (display->grab_resize_timeout_id)
{
g_source_remove (display->grab_resize_timeout_id);
display->grab_resize_timeout_id = 0;
}
if (display->grab_window)
{
meta_window_get_client_root_coords (display->grab_window,
&display->grab_initial_window_pos);
display->grab_anchor_window_pos = display->grab_initial_window_pos;
display->grab_wireframe_active =
(meta_prefs_get_reduced_resources () && !meta_prefs_get_gnome_accessibility ()) &&
(meta_grab_op_is_resizing (display->grab_op) ||
meta_grab_op_is_moving (display->grab_op));
if (display->grab_wireframe_active)
{
meta_window_calc_showing (display->grab_window);
meta_window_begin_wireframe (window);
}
#ifdef HAVE_XSYNC
if (!display->grab_wireframe_active &&
meta_grab_op_is_resizing (display->grab_op) &&
display->grab_window->sync_request_counter != None)
{
XSyncAlarmAttributes values;
XSyncValue init;
meta_error_trap_push_with_return (display);
/* Set the counter to 0, so we know that the application's
* responses to the client messages will always trigger
* a PositiveTransition
*/
XSyncIntToValue (&init, 0);
XSyncSetCounter (display->xdisplay,
display->grab_window->sync_request_counter, init);
display->grab_window->sync_request_serial = 0;
display->grab_window->sync_request_time.tv_sec = 0;
display->grab_window->sync_request_time.tv_usec = 0;
values.trigger.counter = display->grab_window->sync_request_counter;
values.trigger.value_type = XSyncAbsolute;
values.trigger.test_type = XSyncPositiveTransition;
XSyncIntToValue (&values.trigger.wait_value,
display->grab_window->sync_request_serial + 1);
/* After triggering, increment test_value by this.
* (NOT wait_value above)
*/
XSyncIntToValue (&values.delta, 1);
/* we want events (on by default anyway) */
values.events = True;
display->grab_sync_request_alarm = XSyncCreateAlarm (display->xdisplay,
XSyncCACounter |
XSyncCAValueType |
XSyncCAValue |
XSyncCATestType |
XSyncCADelta |
XSyncCAEvents,
&values);
if (meta_error_trap_pop_with_return (display, FALSE) != Success)
display->grab_sync_request_alarm = None;
meta_topic (META_DEBUG_RESIZING,
"Created update alarm 0x%lx\n",
display->grab_sync_request_alarm);
}
#endif
}
meta_topic (META_DEBUG_WINDOW_OPS,
"Grab op %u on window %s successful\n",
display->grab_op, window ? window->desc : "(null)");
g_assert (display->grab_window != NULL || display->grab_screen != NULL);
g_assert (display->grab_op != META_GRAB_OP_NONE);
/* If this is a move or resize, cache the window edges for
* resistance/snapping
*/
if (meta_grab_op_is_resizing (display->grab_op) ||
meta_grab_op_is_moving (display->grab_op))
{
meta_topic (META_DEBUG_WINDOW_OPS,
"Computing edges to resist-movement or snap-to for %s.\n",
window->desc);
meta_display_compute_resistance_and_snapping_edges (display);
}
/* Save the old stacking */
if (GRAB_OP_IS_WINDOW_SWITCH (display->grab_op))
{
meta_topic (META_DEBUG_WINDOW_OPS,
"Saving old stack positions; old pointer was %p.\n",
display->grab_old_window_stacking);
display->grab_old_window_stacking =
meta_stack_get_positions (screen->stack);
}
if (display->grab_window)
{
meta_window_refresh_resize_popup (display->grab_window);
}
return TRUE;
}
void
meta_display_end_grab_op (MetaDisplay *display,
guint32 timestamp)
{
meta_topic (META_DEBUG_WINDOW_OPS,
"Ending grab op %u at time %u\n", display->grab_op, timestamp);
if (display->grab_op == META_GRAB_OP_NONE)
return;
if (display->grab_window != NULL)
display->grab_window->shaken_loose = FALSE;
if (display->grab_window != NULL &&
!meta_prefs_get_raise_on_click () &&
(meta_grab_op_is_moving (display->grab_op) ||
meta_grab_op_is_resizing (display->grab_op)))
{
/* Only raise the window in orthogonal raise
* ('do-not-raise-on-click') mode if the user didn't try to move
* or resize the given window by at least a threshold amount.
* For raise on click mode, the window was raised at the
* beginning of the grab_op.
*/
if (!display->grab_threshold_movement_reached)
meta_window_raise (display->grab_window);
}
if (GRAB_OP_IS_WINDOW_SWITCH (display->grab_op) ||
display->grab_op == META_GRAB_OP_KEYBOARD_WORKSPACE_SWITCHING)
{
if (GRAB_OP_IS_WINDOW_SWITCH (display->grab_op))
meta_screen_tab_popup_destroy (display->grab_screen);
else
meta_screen_workspace_popup_destroy (display->grab_screen);
/* If the ungrab here causes an EnterNotify, ignore it for
* sloppy focus
*/
display->ungrab_should_not_cause_focus_window = display->grab_xwindow;
}
/* If this was a move or resize clear out the edge cache */
if (meta_grab_op_is_resizing (display->grab_op) ||
meta_grab_op_is_moving (display->grab_op))
{
meta_topic (META_DEBUG_WINDOW_OPS,
"Clearing out the edges for resistance/snapping");
meta_display_cleanup_edges (display);
}
if (display->grab_old_window_stacking != NULL)
{
meta_topic (META_DEBUG_WINDOW_OPS,
"Clearing out the old stack position, which was %p.\n",
display->grab_old_window_stacking);
g_list_free (display->grab_old_window_stacking);
display->grab_old_window_stacking = NULL;
}
if (display->grab_wireframe_active)
{
display->grab_wireframe_active = FALSE;
meta_window_end_wireframe (display->grab_window);
if (!display->grab_was_cancelled)
{
if (meta_grab_op_is_moving (display->grab_op))
meta_window_move (display->grab_window,
TRUE,
display->grab_wireframe_rect.x,
display->grab_wireframe_rect.y);
if (meta_grab_op_is_resizing (display->grab_op))
meta_window_resize_with_gravity (display->grab_window,
TRUE,
display->grab_wireframe_rect.width,
display->grab_wireframe_rect.height,
meta_resize_gravity_from_grab_op (display->grab_op));
}
meta_window_calc_showing (display->grab_window);
}
if (display->compositor &&
display->grab_window &&
grab_op_is_mouse (display->grab_op) &&
meta_grab_op_is_moving (display->grab_op))
{
meta_compositor_end_move (display->compositor,
display->grab_window);
}
if (display->grab_have_pointer)
{
meta_topic (META_DEBUG_WINDOW_OPS,
"Ungrabbing pointer with timestamp %u\n", timestamp);
XUngrabPointer (display->xdisplay, timestamp);
}
if (display->grab_have_keyboard)
{
meta_topic (META_DEBUG_WINDOW_OPS,
"Ungrabbing all keys timestamp %u\n", timestamp);
if (display->grab_window)
meta_window_ungrab_all_keys (display->grab_window, timestamp);
else
meta_screen_ungrab_all_keys (display->grab_screen, timestamp);
}
#ifdef HAVE_XSYNC
if (display->grab_sync_request_alarm != None)
{
XSyncDestroyAlarm (display->xdisplay,
display->grab_sync_request_alarm);
display->grab_sync_request_alarm = None;
}
#endif /* HAVE_XSYNC */
display->grab_window = NULL;
display->grab_screen = NULL;
display->grab_xwindow = None;
display->grab_op = META_GRAB_OP_NONE;
if (display->grab_resize_popup)
{
meta_ui_resize_popup_free (display->grab_resize_popup);
display->grab_resize_popup = NULL;
}
if (display->grab_resize_timeout_id)
{
g_source_remove (display->grab_resize_timeout_id);
display->grab_resize_timeout_id = 0;
}
}
void
meta_display_check_threshold_reached (MetaDisplay *display,
int x,
int y)
{
/* Don't bother doing the check again if we've already reached the threshold */
if (meta_prefs_get_raise_on_click () ||
display->grab_threshold_movement_reached)
return;
if (ABS (display->grab_initial_x - x) >= 8 ||
ABS (display->grab_initial_y - y) >= 8)
display->grab_threshold_movement_reached = TRUE;
}
static void
meta_change_button_grab (MetaDisplay *display,
Window xwindow,
gboolean grab,
gboolean sync,
int button,
int modmask)
{
unsigned int ignored_mask;
meta_verbose ("%s 0x%lx sync = %d button = %d modmask 0x%x\n",
grab ? "Grabbing" : "Ungrabbing",
xwindow,
sync, button, modmask);
meta_error_trap_push (display);
ignored_mask = 0;
while (ignored_mask <= display->ignored_modifier_mask)
{
if (ignored_mask & ~(display->ignored_modifier_mask))
{
/* Not a combination of ignored modifiers
* (it contains some non-ignored modifiers)
*/
++ignored_mask;
continue;
}
if (meta_is_debugging ())
meta_error_trap_push_with_return (display);
/* GrabModeSync means freeze until XAllowEvents */
if (grab)
XGrabButton (display->xdisplay, button, modmask | ignored_mask,
xwindow, False,
ButtonPressMask | ButtonReleaseMask |
PointerMotionMask | PointerMotionHintMask,
sync ? GrabModeSync : GrabModeAsync,
GrabModeAsync,
False, None);
else
XUngrabButton (display->xdisplay, button, modmask | ignored_mask,
xwindow);
if (meta_is_debugging ())
{
int result;
result = meta_error_trap_pop_with_return (display, FALSE);
if (result != Success)
meta_verbose ("Failed to %s button %d with mask 0x%x for window 0x%lx error code %d\n",
grab ? "grab" : "ungrab",
button, modmask | ignored_mask, xwindow, result);
}
++ignored_mask;
}
meta_error_trap_pop (display, FALSE);
}
void
meta_display_grab_window_buttons (MetaDisplay *display,
Window xwindow)
{
/* Grab Alt + button1 for moving window.
* Grab Alt + button2 for resizing window.
* Grab Alt + button3 for popping up window menu.
* Grab Alt + Shift + button1 for snap-moving window.
*/
meta_verbose ("Grabbing window buttons for 0x%lx\n", xwindow);
/* FIXME If we ignored errors here instead of spewing, we could
* put one big error trap around the loop and avoid a bunch of
* XSync()
*/
if (display->window_grab_modifiers != 0)
{
gboolean debug = g_getenv ("MUTTER_DEBUG_BUTTON_GRABS") != NULL;
int i;
for (i = 1; i < 4; i++)
{
meta_change_button_grab (display, xwindow,
TRUE,
FALSE,
i, display->window_grab_modifiers);
/* This is for debugging, since I end up moving the Xnest
* otherwise ;-)
*/
if (debug)
meta_change_button_grab (display, xwindow,
TRUE,
FALSE,
i, ControlMask);
}
/* In addition to grabbing Alt+Button1 for moving the window,
* grab Alt+Shift+Button1 for snap-moving the window. See bug
* 112478. Unfortunately, this doesn't work with
* Shift+Alt+Button1 for some reason; so at least part of the
* order still matters, which sucks (please FIXME).
*/
meta_change_button_grab (display, xwindow,
TRUE,
FALSE,
1, display->window_grab_modifiers | ShiftMask);
}
}
void
meta_display_ungrab_window_buttons (MetaDisplay *display,
Window xwindow)
{
gboolean debug;
int i;
if (display->window_grab_modifiers == 0)
return;
debug = g_getenv ("MUTTER_DEBUG_BUTTON_GRABS") != NULL;
i = 1;
while (i < 4)
{
meta_change_button_grab (display, xwindow,
FALSE, FALSE, i,
display->window_grab_modifiers);
if (debug)
meta_change_button_grab (display, xwindow,
FALSE, FALSE, i, ControlMask);
++i;
}
}
/* Grab buttons we only grab while unfocused in click-to-focus mode */
#define MAX_FOCUS_BUTTON 4
void
meta_display_grab_focus_window_button (MetaDisplay *display,
MetaWindow *window)
{
/* Grab button 1 for activating unfocused windows */
meta_verbose ("Grabbing unfocused window buttons for %s\n", window->desc);
#if 0
/* FIXME:115072 */
/* Don't grab at all unless in click to focus mode. In click to
* focus, we may sometimes be clever about intercepting and eating
* the focus click. But in mouse focus, we never do that since the
* focus window may not be raised, and who wants to think about
* mouse focus anyway.
*/
if (meta_prefs_get_focus_mode () != META_FOCUS_MODE_CLICK)
{
meta_verbose (" (well, not grabbing since not in click to focus mode)\n");
return;
}
#endif
if (window->have_focus_click_grab)
{
meta_verbose (" (well, not grabbing since we already have the grab)\n");
return;
}
/* FIXME If we ignored errors here instead of spewing, we could
* put one big error trap around the loop and avoid a bunch of
* XSync()
*/
{
int i = 1;
while (i < MAX_FOCUS_BUTTON)
{
meta_change_button_grab (display,
window->xwindow,
TRUE, TRUE,
i, 0);
++i;
}
window->have_focus_click_grab = TRUE;
}
}
void
meta_display_ungrab_focus_window_button (MetaDisplay *display,
MetaWindow *window)
{
meta_verbose ("Ungrabbing unfocused window buttons for %s\n", window->desc);
if (!window->have_focus_click_grab)
return;
{
int i = 1;
while (i < MAX_FOCUS_BUTTON)
{
meta_change_button_grab (display, window->xwindow,
FALSE, FALSE, i, 0);
++i;
}
window->have_focus_click_grab = FALSE;
}
}
void
meta_display_increment_event_serial (MetaDisplay *display)
{
/* We just make some random X request */
XDeleteProperty (display->xdisplay, display->leader_window,
display->atom__MOTIF_WM_HINTS);
}
void
meta_display_update_active_window_hint (MetaDisplay *display)
{
GSList *tmp;
gulong data[1];
if (display->focus_window)
data[0] = display->focus_window->xwindow;
else
data[0] = None;
tmp = display->screens;
while (tmp != NULL)
{
MetaScreen *screen = tmp->data;
meta_error_trap_push (display);
XChangeProperty (display->xdisplay, screen->xroot,
display->atom__NET_ACTIVE_WINDOW,
XA_WINDOW,
32, PropModeReplace, (guchar*) data, 1);
meta_error_trap_pop (display, FALSE);
tmp = tmp->next;
}
}
void
meta_display_queue_retheme_all_windows (MetaDisplay *display)
{
GSList* windows;
GSList *tmp;
windows = meta_display_list_windows (display);
tmp = windows;
while (tmp != NULL)
{
MetaWindow *window = tmp->data;
meta_window_queue (window, META_QUEUE_MOVE_RESIZE);
if (window->frame)
{
window->frame->need_reapply_frame_shape = TRUE;
meta_frame_queue_draw (window->frame);
}
tmp = tmp->next;
}
g_slist_free (windows);
}
void
meta_display_retheme_all (void)
{
meta_display_queue_retheme_all_windows (meta_get_display ());
}
void
meta_display_set_cursor_theme (const char *theme,
int size)
{
#ifdef HAVE_XCURSOR
GSList *tmp;
MetaDisplay *display = meta_get_display ();
XcursorSetTheme (display->xdisplay, theme);
XcursorSetDefaultSize (display->xdisplay, size);
tmp = display->screens;
while (tmp != NULL)
{
MetaScreen *screen = tmp->data;
meta_screen_update_cursor (screen);
tmp = tmp->next;
}
#endif
}
/**
* Stores whether syncing is currently enabled.
*/
static gboolean is_syncing = FALSE;
/**
* Returns whether X synchronisation is currently enabled.
*
* \return true if we must wait for events whenever we send X requests;
* false otherwise.
*
* \bug This is *only* called by meta_display_open, but by that time
* we have already turned syncing on or off on startup, and we don't
* have any way to do so while Mutter is running, so it's rather
* pointless.
*/
gboolean
meta_is_syncing (void)
{
return is_syncing;
}
/**
* A handy way to turn on synchronisation on or off for every display.
*
* \bug Of course there is only one display ever anyway, so this can
* be rather hugely simplified.
*/
void
meta_set_syncing (gboolean setting)
{
if (setting != is_syncing)
{
is_syncing = setting;
XSynchronize (meta_get_display ()->xdisplay, is_syncing);
}
}
/**
* How long, in milliseconds, we should wait after pinging a window
* before deciding it's not going to get back to us.
*/
#define PING_TIMEOUT_DELAY 2250
/**
* Does whatever it is we decided to do when a window didn't respond
* to a ping. We also remove the ping from the display's list of
* pending pings. This function is called by the event loop when the timeout
* times out which we created at the start of the ping.
*
* \param data All the information about this ping. It is a MetaPingData
* cast to a void* in order to be passable to a timeout function.
* This function will also free this parameter.
*
* \return Always returns false, because this function is called as a
* timeout and we don't want to run the timer again.
*
* \ingroup pings
*/
static gboolean
meta_display_ping_timeout (gpointer data)
{
MetaPingData *ping_data;
ping_data = data;
ping_data->ping_timeout_id = 0;
meta_topic (META_DEBUG_PING,
"Ping %u on window %lx timed out\n",
ping_data->timestamp, ping_data->xwindow);
(* ping_data->ping_timeout_func) (ping_data->display, ping_data->xwindow,
ping_data->timestamp, ping_data->user_data);
ping_data->display->pending_pings =
g_slist_remove (ping_data->display->pending_pings,
ping_data);
ping_data_free (ping_data);
return FALSE;
}
/**
* Sends a ping request to a window. The window must respond to
* the request within a certain amount of time. If it does, we
* will call one callback; if the time passes and we haven't had
* a response, we call a different callback. The window must have
* the hint showing that it can respond to a ping; if it doesn't,
* we call the "got a response" callback immediately and return.
* This function returns straight away after setting things up;
* the callbacks will be called from the event loop.
*
* \param display The MetaDisplay that the window is on
* \param window The MetaWindow to send the ping to
* \param timestamp The timestamp of the ping. Used for uniqueness.
* Cannot be CurrentTime; use a real timestamp!
* \param ping_reply_func The callback to call if we get a response.
* \param ping_timeout_func The callback to call if we don't get a response.
* \param user_data Arbitrary data that will be passed to the callback
* function. (In practice it's often a pointer to
* the window.)
*
* \bug This should probably be a method on windows, rather than displays
* for one of their windows.
*
* \ingroup pings
*/
void
meta_display_ping_window (MetaDisplay *display,
MetaWindow *window,
guint32 timestamp,
MetaWindowPingFunc ping_reply_func,
MetaWindowPingFunc ping_timeout_func,
gpointer user_data)
{
MetaPingData *ping_data;
if (timestamp == CurrentTime)
{
meta_warning ("Tried to ping a window with CurrentTime! Not allowed.\n");
return;
}
if (!window->net_wm_ping)
{
if (ping_reply_func)
(* ping_reply_func) (display, window->xwindow, timestamp, user_data);
return;
}
ping_data = g_new (MetaPingData, 1);
ping_data->display = display;
ping_data->xwindow = window->xwindow;
ping_data->timestamp = timestamp;
ping_data->ping_reply_func = ping_reply_func;
ping_data->ping_timeout_func = ping_timeout_func;
ping_data->user_data = user_data;
ping_data->ping_timeout_id = g_timeout_add (PING_TIMEOUT_DELAY,
meta_display_ping_timeout,
ping_data);
display->pending_pings = g_slist_prepend (display->pending_pings, ping_data);
meta_topic (META_DEBUG_PING,
"Sending ping with timestamp %u to window %s\n",
timestamp, window->desc);
meta_window_send_icccm_message (window,
display->atom__NET_WM_PING,
timestamp);
}
static void
process_request_frame_extents (MetaDisplay *display,
XEvent *event)
{
/* The X window whose frame extents will be set. */
Window xwindow = event->xclient.window;
unsigned long data[4] = { 0, 0, 0, 0 };
MotifWmHints *hints = NULL;
gboolean hints_set = FALSE;
meta_verbose ("Setting frame extents for 0x%lx\n", xwindow);
/* See if the window is decorated. */
hints_set = meta_prop_get_motif_hints (display,
xwindow,
display->atom__MOTIF_WM_HINTS,
&hints);
if ((hints_set && hints->decorations) || !hints_set)
{
int top = 0;
int bottom = 0;
int left = 0;
int right = 0;
MetaScreen *screen;
screen = meta_display_screen_for_xwindow (display,
event->xclient.window);
if (screen == NULL)
{
meta_warning ("Received request to set _NET_FRAME_EXTENTS "
"on 0x%lx which is on a screen we are not managing\n",
event->xclient.window);
meta_XFree (hints);
return;
}
/* Return estimated frame extents for a normal window. */
meta_ui_theme_get_frame_borders (screen->ui,
META_FRAME_TYPE_NORMAL,
0,
&top,
&bottom,
&left,
&right);
data[0] = left;
data[1] = right;
data[2] = top;
data[3] = bottom;
}
meta_topic (META_DEBUG_GEOMETRY,
"Setting _NET_FRAME_EXTENTS on unmanaged window 0x%lx "
"to top = %lu, left = %lu, bottom = %lu, right = %lu\n",
xwindow, data[0], data[1], data[2], data[3]);
meta_error_trap_push (display);
XChangeProperty (display->xdisplay, xwindow,
display->atom__NET_FRAME_EXTENTS,
XA_CARDINAL,
32, PropModeReplace, (guchar*) data, 4);
meta_error_trap_pop (display, FALSE);
meta_XFree (hints);
}
/**
* Process the pong (the response message) from the ping we sent
* to the window. This involves removing the timeout, calling the
* reply handler function, and freeing memory.
*
* \param display the display we got the pong from
* \param event the XEvent which is a pong; we can tell which
* ping it corresponds to because it bears the
* same timestamp.
*
* \ingroup pings
*/
static void
process_pong_message (MetaDisplay *display,
XEvent *event)
{
GSList *tmp;
guint32 timestamp = event->xclient.data.l[1];
meta_topic (META_DEBUG_PING, "Received a pong with timestamp %u\n",
timestamp);
for (tmp = display->pending_pings; tmp; tmp = tmp->next)
{
MetaPingData *ping_data = tmp->data;
if (timestamp == ping_data->timestamp)
{
meta_topic (META_DEBUG_PING,
"Matching ping found for pong %u\n",
ping_data->timestamp);
/* Remove the ping data from the list */
display->pending_pings = g_slist_remove (display->pending_pings,
ping_data);
/* Remove the timeout */
if (ping_data->ping_timeout_id != 0)
{
g_source_remove (ping_data->ping_timeout_id);
ping_data->ping_timeout_id = 0;
}
/* Call callback */
(* ping_data->ping_reply_func) (display,
ping_data->xwindow,
ping_data->timestamp,
ping_data->user_data);
ping_data_free (ping_data);
break;
}
}
}
/**
* Finds whether a window has any pings waiting on it.
*
* \param display The MetaDisplay of the window.
* \param window The MetaWindow whose pings we want to know about.
*
* \return True if there is at least one ping which has been sent
* to the window without getting a response; false otherwise.
*
* \bug This should probably be a method on windows, rather than displays
* for one of their windows.
*
* \ingroup pings
*/
gboolean
meta_display_window_has_pending_pings (MetaDisplay *display,
MetaWindow *window)
{
GSList *tmp;
for (tmp = display->pending_pings; tmp; tmp = tmp->next)
{
MetaPingData *ping_data = tmp->data;
if (ping_data->xwindow == window->xwindow)
return TRUE;
}
return FALSE;
}
MetaGroup*
get_focussed_group (MetaDisplay *display)
{
if (display->focus_window)
return display->focus_window->group;
else
return NULL;
}
#define IN_TAB_CHAIN(w,t) (((t) == META_TAB_LIST_NORMAL && META_WINDOW_IN_NORMAL_TAB_CHAIN (w)) \
|| ((t) == META_TAB_LIST_DOCKS && META_WINDOW_IN_DOCK_TAB_CHAIN (w)) \
|| ((t) == META_TAB_LIST_GROUP && META_WINDOW_IN_GROUP_TAB_CHAIN (w, get_focussed_group(w->display))))
static MetaWindow*
find_tab_forward (MetaDisplay *display,
MetaTabList type,
MetaScreen *screen,
MetaWorkspace *workspace,
GList *start,
gboolean skip_first)
{
GList *tmp;
g_return_val_if_fail (start != NULL, NULL);
g_return_val_if_fail (workspace != NULL, NULL);
tmp = start;
if (skip_first)
tmp = tmp->next;
while (tmp != NULL)
{
MetaWindow *window = tmp->data;
if (window->screen == screen &&
IN_TAB_CHAIN (window, type))
return window;
tmp = tmp->next;
}
tmp = workspace->mru_list;
while (tmp != start)
{
MetaWindow *window = tmp->data;
if (IN_TAB_CHAIN (window, type))
return window;
tmp = tmp->next;
}
return NULL;
}
static MetaWindow*
find_tab_backward (MetaDisplay *display,
MetaTabList type,
MetaScreen *screen,
MetaWorkspace *workspace,
GList *start,
gboolean skip_last)
{
GList *tmp;
g_return_val_if_fail (start != NULL, NULL);
g_return_val_if_fail (workspace != NULL, NULL);
tmp = start;
if (skip_last)
tmp = tmp->prev;
while (tmp != NULL)
{
MetaWindow *window = tmp->data;
if (window->screen == screen &&
IN_TAB_CHAIN (window, type))
return window;
tmp = tmp->prev;
}
tmp = g_list_last (workspace->mru_list);
while (tmp != start)
{
MetaWindow *window = tmp->data;
if (IN_TAB_CHAIN (window, type))
return window;
tmp = tmp->prev;
}
return NULL;
}
GList*
meta_display_get_tab_list (MetaDisplay *display,
MetaTabList type,
MetaScreen *screen,
MetaWorkspace *workspace)
{
GList *tab_list;
g_return_val_if_fail (workspace != NULL, NULL);
/* Windows sellout mode - MRU order. Collect unminimized windows
* then minimized so minimized windows aren't in the way so much.
*/
{
GList *tmp;
tab_list = NULL;
tmp = workspace->mru_list;
while (tmp != NULL)
{
MetaWindow *window = tmp->data;
if (!window->minimized &&
window->screen == screen &&
IN_TAB_CHAIN (window, type))
tab_list = g_list_prepend (tab_list, window);
tmp = tmp->next;
}
}
{
GList *tmp;
tmp = workspace->mru_list;
while (tmp != NULL)
{
MetaWindow *window = tmp->data;
if (window->minimized &&
window->screen == screen &&
IN_TAB_CHAIN (window, type))
tab_list = g_list_prepend (tab_list, window);
tmp = tmp->next;
}
}
tab_list = g_list_reverse (tab_list);
{
GSList *tmp;
MetaWindow *l_window;
tmp = meta_display_list_windows (display);
/* Go through all windows */
while (tmp != NULL)
{
l_window=tmp->data;
/* Check to see if it demands attention */
if (l_window->wm_state_demands_attention &&
l_window->workspace!=workspace)
{
/* if it does, add it to the popup */
tab_list = g_list_prepend (tab_list, l_window);
}
tmp = tmp->next;
} /* End while tmp!=NULL */
}
return tab_list;
}
MetaWindow*
meta_display_get_tab_next (MetaDisplay *display,
MetaTabList type,
MetaScreen *screen,
MetaWorkspace *workspace,
MetaWindow *window,
gboolean backward)
{
gboolean skip;
GList *tab_list;
MetaWindow *ret;
tab_list = meta_display_get_tab_list(display,
type,
screen,
workspace);
if (tab_list == NULL)
return NULL;
if (window != NULL)
{
g_assert (window->display == display);
if (backward)
ret = find_tab_backward (display, type, screen, workspace,
g_list_find (tab_list,
window),
TRUE);
else
ret = find_tab_forward (display, type, screen, workspace,
g_list_find (tab_list,
window),
TRUE);
}
else
{
skip = display->focus_window != NULL &&
IN_TAB_CHAIN (display->focus_window, type);
if (backward)
ret = find_tab_backward (display, type, screen, workspace,
tab_list, skip);
else
ret = find_tab_forward (display, type, screen, workspace,
tab_list, skip);
}
g_list_free (tab_list);
return ret;
}
MetaWindow*
meta_display_get_tab_current (MetaDisplay *display,
MetaTabList type,
MetaScreen *screen,
MetaWorkspace *workspace)
{
MetaWindow *window;
window = display->focus_window;
if (window != NULL &&
window->screen == screen &&
IN_TAB_CHAIN (window, type) &&
(workspace == NULL ||
meta_window_located_on_workspace (window, workspace)))
return window;
else
return NULL;
}
int
meta_resize_gravity_from_grab_op (MetaGrabOp op)
{
int gravity;
gravity = -1;
switch (op)
{
case META_GRAB_OP_RESIZING_SE:
case META_GRAB_OP_KEYBOARD_RESIZING_SE:
gravity = NorthWestGravity;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_S:
case META_GRAB_OP_RESIZING_S:
gravity = NorthGravity;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_SW:
case META_GRAB_OP_RESIZING_SW:
gravity = NorthEastGravity;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_N:
case META_GRAB_OP_RESIZING_N:
gravity = SouthGravity;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_NE:
case META_GRAB_OP_RESIZING_NE:
gravity = SouthWestGravity;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_NW:
case META_GRAB_OP_RESIZING_NW:
gravity = SouthEastGravity;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_E:
case META_GRAB_OP_RESIZING_E:
gravity = WestGravity;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_W:
case META_GRAB_OP_RESIZING_W:
gravity = EastGravity;
break;
case META_GRAB_OP_KEYBOARD_RESIZING_UNKNOWN:
gravity = CenterGravity;
break;
default:
break;
}
return gravity;
}
static MetaScreen*
find_screen_for_selection (MetaDisplay *display,
Window owner,
Atom selection)
{
GSList *tmp;
tmp = display->screens;
while (tmp != NULL)
{
MetaScreen *screen = tmp->data;
if (screen->wm_sn_selection_window == owner &&
screen->wm_sn_atom == selection)
return screen;
tmp = tmp->next;
}
return NULL;
}
/* from fvwm2, Copyright Matthias Clasen, Dominik Vogt */
static gboolean
convert_property (MetaDisplay *display,
MetaScreen *screen,
Window w,
Atom target,
Atom property)
{
#define N_TARGETS 4
Atom conversion_targets[N_TARGETS];
long icccm_version[] = { 2, 0 };
conversion_targets[0] = display->atom_TARGETS;
conversion_targets[1] = display->atom_MULTIPLE;
conversion_targets[2] = display->atom_TIMESTAMP;
conversion_targets[3] = display->atom_VERSION;
meta_error_trap_push_with_return (display);
if (target == display->atom_TARGETS)
XChangeProperty (display->xdisplay, w, property,
XA_ATOM, 32, PropModeReplace,
(unsigned char *)conversion_targets, N_TARGETS);
else if (target == display->atom_TIMESTAMP)
XChangeProperty (display->xdisplay, w, property,
XA_INTEGER, 32, PropModeReplace,
(unsigned char *)&screen->wm_sn_timestamp, 1);
else if (target == display->atom_VERSION)
XChangeProperty (display->xdisplay, w, property,
XA_INTEGER, 32, PropModeReplace,
(unsigned char *)icccm_version, 2);
else
{
meta_error_trap_pop_with_return (display, FALSE);
return FALSE;
}
if (meta_error_trap_pop_with_return (display, FALSE) != Success)
return FALSE;
/* Be sure the PropertyNotify has arrived so we
* can send SelectionNotify
*/
/* FIXME the error trap pop synced anyway, right? */
meta_topic (META_DEBUG_SYNC, "Syncing on %s\n", G_STRFUNC);
XSync (display->xdisplay, False);
return TRUE;
}
/* from fvwm2, Copyright Matthias Clasen, Dominik Vogt */
static void
process_selection_request (MetaDisplay *display,
XEvent *event)
{
XSelectionEvent reply;
MetaScreen *screen;
screen = find_screen_for_selection (display,
event->xselectionrequest.owner,
event->xselectionrequest.selection);
if (screen == NULL)
{
char *str;
meta_error_trap_push (display);
str = XGetAtomName (display->xdisplay,
event->xselectionrequest.selection);
meta_error_trap_pop (display, TRUE);
meta_verbose ("Selection request with selection %s window 0x%lx not a WM_Sn selection we recognize\n",
str ? str : "(bad atom)", event->xselectionrequest.owner);
meta_XFree (str);
return;
}
reply.type = SelectionNotify;
reply.display = display->xdisplay;
reply.requestor = event->xselectionrequest.requestor;
reply.selection = event->xselectionrequest.selection;
reply.target = event->xselectionrequest.target;
reply.property = None;
reply.time = event->xselectionrequest.time;
if (event->xselectionrequest.target == display->atom_MULTIPLE)
{
if (event->xselectionrequest.property != None)
{
Atom type, *adata;
int i, format;
unsigned long num, rest;
unsigned char *data;
meta_error_trap_push_with_return (display);
if (XGetWindowProperty (display->xdisplay,
event->xselectionrequest.requestor,
event->xselectionrequest.property, 0, 256, False,
display->atom_ATOM_PAIR,
&type, &format, &num, &rest, &data) != Success)
{
meta_error_trap_pop_with_return (display, TRUE);
return;
}
if (meta_error_trap_pop_with_return (display, TRUE) == Success)
{
/* FIXME: to be 100% correct, should deal with rest > 0,
* but since we have 4 possible targets, we will hardly ever
* meet multiple requests with a length > 8
*/
adata = (Atom*)data;
i = 0;
while (i < (int) num)
{
if (!convert_property (display, screen,
event->xselectionrequest.requestor,
adata[i], adata[i+1]))
adata[i+1] = None;
i += 2;
}
meta_error_trap_push (display);
XChangeProperty (display->xdisplay,
event->xselectionrequest.requestor,
event->xselectionrequest.property,
display->atom_ATOM_PAIR,
32, PropModeReplace, data, num);
meta_error_trap_pop (display, FALSE);
meta_XFree (data);
}
}
}
else
{
if (event->xselectionrequest.property == None)
event->xselectionrequest.property = event->xselectionrequest.target;
if (convert_property (display, screen,
event->xselectionrequest.requestor,
event->xselectionrequest.target,
event->xselectionrequest.property))
reply.property = event->xselectionrequest.property;
}
XSendEvent (display->xdisplay,
event->xselectionrequest.requestor,
False, 0L, (XEvent*)&reply);
meta_verbose ("Handled selection request\n");
}
static void
process_selection_clear (MetaDisplay *display,
XEvent *event)
{
/* We need to unmanage the screen on which we lost the selection */
MetaScreen *screen;
screen = find_screen_for_selection (display,
event->xselectionclear.window,
event->xselectionclear.selection);
if (screen != NULL)
{
meta_verbose ("Got selection clear for screen %d on display %s\n",
screen->number, display->name);
meta_display_unmanage_screen (display,
screen,
event->xselectionclear.time);
/* display and screen may both be invalid memory... */
return;
}
{
char *str;
meta_error_trap_push (display);
str = XGetAtomName (display->xdisplay,
event->xselectionclear.selection);
meta_error_trap_pop (display, TRUE);
meta_verbose ("Selection clear with selection %s window 0x%lx not a WM_Sn selection we recognize\n",
str ? str : "(bad atom)", event->xselectionclear.window);
meta_XFree (str);
}
}
void
meta_display_unmanage_screen (MetaDisplay *display,
MetaScreen *screen,
guint32 timestamp)
{
meta_verbose ("Unmanaging screen %d on display %s\n",
screen->number, display->name);
g_return_if_fail (g_slist_find (display->screens, screen) != NULL);
meta_screen_free (screen, timestamp);
display->screens = g_slist_remove (display->screens, screen);
if (display->screens == NULL)
meta_display_close (display, timestamp);
}
void
meta_display_unmanage_windows_for_screen (MetaDisplay *display,
MetaScreen *screen,
guint32 timestamp)
{
GSList *tmp;
GSList *winlist;
winlist = meta_display_list_windows (display);
winlist = g_slist_sort (winlist, meta_display_stack_cmp);
/* Unmanage all windows */
tmp = winlist;
while (tmp != NULL)
{
meta_window_unmanage (tmp->data, timestamp);
tmp = tmp->next;
}
g_slist_free (winlist);
}
int
meta_display_stack_cmp (const void *a,
const void *b)
{
MetaWindow *aw = (void*) a;
MetaWindow *bw = (void*) b;
if (aw->screen == bw->screen)
return meta_stack_windows_cmp (aw->screen->stack, aw, bw);
/* Then assume screens are stacked by number */
else if (aw->screen->number < bw->screen->number)
return -1;
else if (aw->screen->number > bw->screen->number)
return 1;
else
return 0; /* not reached in theory, if windows on same display */
}
void
meta_display_devirtualize_modifiers (MetaDisplay *display,
MetaVirtualModifier modifiers,
unsigned int *mask)
{
*mask = 0;
if (modifiers & META_VIRTUAL_SHIFT_MASK)
*mask |= ShiftMask;
if (modifiers & META_VIRTUAL_CONTROL_MASK)
*mask |= ControlMask;
if (modifiers & META_VIRTUAL_ALT_MASK)
*mask |= Mod1Mask;
if (modifiers & META_VIRTUAL_META_MASK)
*mask |= display->meta_mask;
if (modifiers & META_VIRTUAL_HYPER_MASK)
*mask |= display->hyper_mask;
if (modifiers & META_VIRTUAL_SUPER_MASK)
*mask |= display->super_mask;
if (modifiers & META_VIRTUAL_MOD2_MASK)
*mask |= Mod2Mask;
if (modifiers & META_VIRTUAL_MOD3_MASK)
*mask |= Mod3Mask;
if (modifiers & META_VIRTUAL_MOD4_MASK)
*mask |= Mod4Mask;
if (modifiers & META_VIRTUAL_MOD5_MASK)
*mask |= Mod5Mask;
}
static void
update_window_grab_modifiers (MetaDisplay *display)
{
MetaVirtualModifier virtual_mods;
unsigned int mods;
virtual_mods = meta_prefs_get_mouse_button_mods ();
meta_display_devirtualize_modifiers (display, virtual_mods,
&mods);
display->window_grab_modifiers = mods;
}
static void
prefs_changed_callback (MetaPreference pref,
void *data)
{
MetaDisplay *display = data;
/* It may not be obvious why we regrab on focus mode
* change; it's because we handle focus clicks a
* bit differently for the different focus modes.
*/
if (pref == META_PREF_MOUSE_BUTTON_MODS ||
pref == META_PREF_FOCUS_MODE)
{
MetaDisplay *display = data;
GSList *windows;
GSList *tmp;
windows = meta_display_list_windows (display);
/* Ungrab all */
tmp = windows;
while (tmp != NULL)
{
MetaWindow *w = tmp->data;
meta_display_ungrab_window_buttons (display, w->xwindow);
meta_display_ungrab_focus_window_button (display, w);
tmp = tmp->next;
}
/* change our modifier */
if (pref == META_PREF_MOUSE_BUTTON_MODS)
update_window_grab_modifiers (display);
/* Grab all */
tmp = windows;
while (tmp != NULL)
{
MetaWindow *w = tmp->data;
if (w->type != META_WINDOW_DOCK)
{
meta_display_grab_focus_window_button (display, w);
meta_display_grab_window_buttons (display, w->xwindow);
}
tmp = tmp->next;
}
g_slist_free (windows);
}
else if (pref == META_PREF_AUDIBLE_BELL)
{
meta_bell_set_audible (display, meta_prefs_bell_is_audible ());
}
else if (pref == META_PREF_COMPOSITING_MANAGER)
{
gboolean cm = meta_prefs_get_compositing_manager ();
if (cm)
enable_compositor (display, TRUE);
else
disable_compositor (display);
}
}
void
meta_display_increment_focus_sentinel (MetaDisplay *display)
{
unsigned long data[1];
data[0] = meta_display_get_current_time (display);
XChangeProperty (display->xdisplay,
((MetaScreen*) display->screens->data)->xroot,
display->atom__MUTTER_SENTINEL,
XA_CARDINAL,
32, PropModeReplace, (guchar*) data, 1);
display->sentinel_counter += 1;
}
void
meta_display_decrement_focus_sentinel (MetaDisplay *display)
{
display->sentinel_counter -= 1;
if (display->sentinel_counter < 0)
display->sentinel_counter = 0;
}
gboolean
meta_display_focus_sentinel_clear (MetaDisplay *display)
{
return (display->sentinel_counter == 0);
}
static void
sanity_check_timestamps (MetaDisplay *display,
guint32 timestamp)
{
if (XSERVER_TIME_IS_BEFORE (timestamp, display->last_focus_time))
{
meta_warning ("last_focus_time (%u) is greater than comparison "
"timestamp (%u). This most likely represents a buggy "
"client sending inaccurate timestamps in messages such as "
"_NET_ACTIVE_WINDOW. Trying to work around...\n",
display->last_focus_time, timestamp);
display->last_focus_time = timestamp;
}
if (XSERVER_TIME_IS_BEFORE (timestamp, display->last_user_time))
{
GSList *windows;
GSList *tmp;
meta_warning ("last_user_time (%u) is greater than comparison "
"timestamp (%u). This most likely represents a buggy "
"client sending inaccurate timestamps in messages such as "
"_NET_ACTIVE_WINDOW. Trying to work around...\n",
display->last_user_time, timestamp);
display->last_user_time = timestamp;
windows = meta_display_list_windows (display);
tmp = windows;
while (tmp != NULL)
{
MetaWindow *window = tmp->data;
if (XSERVER_TIME_IS_BEFORE (timestamp, window->net_wm_user_time))
{
meta_warning ("%s appears to be one of the offending windows "
"with a timestamp of %u. Working around...\n",
window->desc, window->net_wm_user_time);
window->net_wm_user_time = timestamp;
}
tmp = tmp->next;
}
g_slist_free (windows);
}
}
static gboolean
timestamp_too_old (MetaDisplay *display,
MetaWindow *window,
guint32 *timestamp)
{
/* FIXME: If Soeren's suggestion in bug 151984 is implemented, it will allow
* us to sanity check the timestamp here and ensure it doesn't correspond to
* a future time (though we would want to rename to
* timestamp_too_old_or_in_future).
*/
if (*timestamp == CurrentTime)
{
meta_warning ("Got a request to focus %s with a timestamp of 0. This "
"shouldn't happen!\n",
window ? window->desc : "the no_focus_window");
meta_print_backtrace ();
*timestamp = meta_display_get_current_time_roundtrip (display);
return FALSE;
}
else if (XSERVER_TIME_IS_BEFORE (*timestamp, display->last_focus_time))
{
if (XSERVER_TIME_IS_BEFORE (*timestamp, display->last_user_time))
{
meta_topic (META_DEBUG_FOCUS,
"Ignoring focus request for %s since %u "
"is less than %u and %u.\n",
window ? window->desc : "the no_focus_window",
*timestamp,
display->last_user_time,
display->last_focus_time);
return TRUE;
}
else
{
meta_topic (META_DEBUG_FOCUS,
"Received focus request for %s which is newer than most "
"recent user_time, but less recent than "
"last_focus_time (%u < %u < %u); adjusting "
"accordingly. (See bug 167358)\n",
window ? window->desc : "the no_focus_window",
display->last_user_time,
*timestamp,
display->last_focus_time);
*timestamp = display->last_focus_time;
return FALSE;
}
}
return FALSE;
}
void
meta_display_set_input_focus_window (MetaDisplay *display,
MetaWindow *window,
gboolean focus_frame,
guint32 timestamp)
{
if (timestamp_too_old (display, window, &timestamp))
return;
meta_error_trap_push (display);
XSetInputFocus (display->xdisplay,
focus_frame ? window->frame->xwindow : window->xwindow,
RevertToPointerRoot,
timestamp);
meta_error_trap_pop (display, FALSE);
display->expected_focus_window = window;
display->last_focus_time = timestamp;
display->active_screen = window->screen;
if (window != display->autoraise_window)
meta_display_remove_autoraise_callback (window->display);
}
void
meta_display_focus_the_no_focus_window (MetaDisplay *display,
MetaScreen *screen,
guint32 timestamp)
{
if (timestamp_too_old (display, NULL, &timestamp))
return;
XSetInputFocus (display->xdisplay,
screen->no_focus_window,
RevertToPointerRoot,
timestamp);
display->expected_focus_window = NULL;
display->last_focus_time = timestamp;
display->active_screen = screen;
meta_display_remove_autoraise_callback (display);
}
void
meta_display_remove_autoraise_callback (MetaDisplay *display)
{
if (display->autoraise_timeout_id != 0)
{
g_source_remove (display->autoraise_timeout_id);
display->autoraise_timeout_id = 0;
display->autoraise_window = NULL;
}
}
void
meta_display_overlay_key_activate (MetaDisplay *display)
{
g_signal_emit (display, display_signals[OVERLAY_KEY], 0);
}
#ifdef HAVE_COMPOSITE_EXTENSIONS
void
meta_display_get_compositor_version (MetaDisplay *display,
int *major,
int *minor)
{
*major = display->composite_major_version;
*minor = display->composite_minor_version;
}
#endif
Display *
meta_display_get_xdisplay (MetaDisplay *display)
{
return display->xdisplay;
}
MetaCompositor *
meta_display_get_compositor (MetaDisplay *display)
{
return display->compositor;
}
GSList *
meta_display_get_screens (MetaDisplay *display)
{
return display->screens;
}
gboolean
meta_display_has_shape (MetaDisplay *display)
{
return META_DISPLAY_HAS_SHAPE (display);
}
/**
* meta_display_get_focus_window:
* @display: a #MetaDisplay
*
* Get the window that, according to events received from X server,
* currently has the input focus. We may have already sent a request
* to the X server to move the focus window elsewhere. (The
* expected_focus_window records where we've last set the input
* focus.)
*
* Return Value: (transfer none): The current focus window
*/
MetaWindow *
meta_display_get_focus_window (MetaDisplay *display)
{
return display->focus_window;
}
#ifdef HAVE_COMPOSITE_EXTENSIONS
int
meta_display_get_damage_event_base (MetaDisplay *display)
{
return display->damage_event_base;
}
#endif
#ifdef HAVE_COMPOSITE_EXTENSIONS
#ifdef HAVE_SHAPE
int
meta_display_get_shape_event_base (MetaDisplay *display)
{
return display->shape_event_base;
}
#endif
#endif
Atom meta_display_get_atom (MetaDisplay *display, MetaAtom meta_atom)
{
Atom *atoms = & display->atom_WM_PROTOCOLS;
return atoms[meta_atom - 1];
}
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