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mutter/src/core/display.c
Tomas Frydrych e1965914a3 Synced with Metacity 2.23.89 (r3800) 
Merge commit '51de9ef8605f7a195ef360afb3a504488125611f' into clutter
2008-08-18 11:11:32 +01:00

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/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
/* Metacity 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.h"
#include "prefs.h"
#include "resizepopup.h"
#include "xprops.h"
#include "workspace.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;
/**
* 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);
/**
* 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;
}
/**
* 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_new (MetaDisplay, 1);
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 ("METACITY_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,
"Metacity");
meta_prop_set_utf8_string_hint (the_display,
the_display->leader_window,
the_display->atom__METACITY_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_free() 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_free (display);
display = NULL;
meta_quit (META_EXIT_SUCCESS);
}
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 Metacity'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 == ButtonPress)
{
/* filter out scrollwheel */
if (event->xbutton.button == 4 ||
event->xbutton.button == 5)
return FALSE;
}
else 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 ((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 ("METACITY_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 == 2)
{
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 == 3)
{
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_free (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);
meta_effect_run_close (window, NULL, NULL);
/* Unmanage withdrawn window */
window->withdrawn = TRUE;
meta_window_free (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:
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:
/* 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__METACITY_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__METACITY_RESTART_MESSAGE)
{
meta_verbose ("Received restart request\n");
meta_restart ();
}
else if (event->xclient.message_type ==
display->atom__METACITY_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__METACITY_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__METACITY_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)
{
meta_compositor_process_event (display->compositor,
event,
window);
}
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)
{
meta_warning ("Attempt to perform window operation %u on window %s when operation %u on %s already in effect\n",
op, window ? window->desc : "none", 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);
}
/* Do this last, after everything is set up. */
switch (op)
{
case META_GRAB_OP_KEYBOARD_TABBING_NORMAL:
meta_screen_ensure_tab_popup (screen,
META_TAB_LIST_NORMAL,
META_TAB_SHOW_ICON);
break;
case META_GRAB_OP_KEYBOARD_ESCAPING_NORMAL:
meta_screen_ensure_tab_popup (screen,
META_TAB_LIST_NORMAL,
META_TAB_SHOW_INSTANTLY);
break;
case META_GRAB_OP_KEYBOARD_TABBING_DOCK:
meta_screen_ensure_tab_popup (screen,
META_TAB_LIST_DOCKS,
META_TAB_SHOW_ICON);
break;
case META_GRAB_OP_KEYBOARD_ESCAPING_DOCK:
meta_screen_ensure_tab_popup (screen,
META_TAB_LIST_DOCKS,
META_TAB_SHOW_INSTANTLY);
break;
case META_GRAB_OP_KEYBOARD_TABBING_GROUP:
meta_screen_ensure_tab_popup (screen,
META_TAB_LIST_GROUP,
META_TAB_SHOW_ICON);
break;
case META_GRAB_OP_KEYBOARD_ESCAPING_GROUP:
meta_screen_ensure_tab_popup (screen,
META_TAB_LIST_GROUP,
META_TAB_SHOW_INSTANTLY);
case META_GRAB_OP_KEYBOARD_WORKSPACE_SWITCHING:
meta_screen_ensure_workspace_popup (screen);
break;
default:
break;
}
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)
{
meta_ui_tab_popup_free (display->grab_screen->tab_popup);
display->grab_screen->tab_popup = NULL;
/* 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 ("METACITY_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 ("METACITY_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 Metacity 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_free (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;
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__METACITY_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;
}
}
#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);
}
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
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