/**
* gdk_x11_screen_get_window_manager_name:
* @screen: a #GdkScreen
*
* Returns the name of the window manager for @screen.
*
* Return value: the name of the window manager screen @screen, or
* "unknown" if the window manager is unknown. The string is owned by GDK
* and should not be freed.
*
* Since: 2.2
**/
const char*
gdk_x11_screen_get_window_manager_name (GdkScreen *screen)
{
GdkX11Screen *x11_screen;
GdkDisplay *display;
x11_screen = GDK_X11_SCREEN (screen);
display = x11_screen->display;
if (!G_LIKELY (GDK_X11_DISPLAY (display)->trusted_client))
return x11_screen->window_manager_name;
fetch_net_wm_check_window (screen);
if (x11_screen->need_refetch_wm_name)
{
/* Get the name of the window manager */
x11_screen->need_refetch_wm_name = FALSE;
g_free (x11_screen->window_manager_name);
x11_screen->window_manager_name = g_strdup ("unknown");
if (x11_screen->wmspec_check_window != None)
{
Atom type;
gint format;
gulong n_items;
gulong bytes_after;
gchar *name;
name = NULL;
gdk_x11_display_error_trap_push (display);
XGetWindowProperty (GDK_DISPLAY_XDISPLAY (display),
x11_screen->wmspec_check_window,
gdk_x11_get_xatom_by_name_for_display (display,
"_NET_WM_NAME"),
0, G_MAXLONG, False,
gdk_x11_get_xatom_by_name_for_display (display,
"UTF8_STRING"),
&type, &format,
&n_items, &bytes_after,
(guchar **)&name);
gdk_x11_display_error_trap_pop_ignored (display);
if (name != NULL)
{
g_free (x11_screen->window_manager_name);
x11_screen->window_manager_name = g_strdup (name);
XFree (name);
}
}
}
return GDK_X11_SCREEN (screen)->window_manager_name;
}
static gint
gdk_x11_screen_get_height_mm (GdkScreen *screen)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
return HeightMMOfScreen (GDK_X11_SCREEN (screen)->xscreen);
}
static GdkDisplay *
gdk_x11_screen_get_display (GdkScreen *screen)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
return GDK_X11_SCREEN (screen)->display;
}
static gint
gdk_x11_screen_get_n_monitors (GdkScreen *screen)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
return GDK_X11_SCREEN (screen)->n_monitors;
}
static GdkWindow *
gdk_x11_screen_get_root_window (GdkScreen *screen)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
return GDK_X11_SCREEN (screen)->root_window;
}
static gint
gdk_x11_screen_get_width (GdkScreen *screen)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
return WidthOfScreen (GDK_X11_SCREEN (screen)->xscreen);
}
static gint
gdk_x11_screen_get_primary_monitor (GdkScreen *screen)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
return GDK_X11_SCREEN (screen)->primary_monitor;
}
GdkScreen *
_gdk_x11_screen_new (GdkDisplay *display,
gint screen_number)
{
GdkScreen *screen;
GdkX11Screen *x11_screen;
GdkX11Display *display_x11 = GDK_X11_DISPLAY (display);
screen = g_object_new (GDK_TYPE_X11_SCREEN, NULL);
x11_screen = GDK_X11_SCREEN (screen);
x11_screen->display = display;
x11_screen->xdisplay = display_x11->xdisplay;
x11_screen->xscreen = ScreenOfDisplay (display_x11->xdisplay, screen_number);
x11_screen->screen_num = screen_number;
x11_screen->xroot_window = RootWindow (display_x11->xdisplay,screen_number);
x11_screen->wmspec_check_window = None;
/* we want this to be always non-null */
x11_screen->window_manager_name = g_strdup ("unknown");
init_multihead (screen);
init_randr_support (screen);
_gdk_x11_screen_init_visuals (screen);
_gdk_x11_screen_init_root_window (screen);
return screen;
}
static gboolean
gdk_x11_screen_is_composited (GdkScreen *screen)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
return x11_screen->is_composited;
}
static GdkVisual *
gdk_x11_screen_get_rgba_visual (GdkScreen *screen)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
return x11_screen->rgba_visual;
}
static void
update_bounding_box (GdkScreen *screen)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
GdkX11Display *x11_display = GDK_X11_DISPLAY (x11_screen->display);
gint i, x1, y1, x2, y2;
x1 = y1 = G_MAXINT;
x2 = y2 = G_MININT;
for (i = 0; i < x11_display->monitors->len; i++)
{
GdkX11Monitor *monitor = x11_display->monitors->pdata[i];
GdkRectangle geometry;
gdk_monitor_get_geometry (GDK_MONITOR (monitor), &geometry);
x1 = MIN (x1, geometry.x);
y1 = MIN (y1, geometry.y);
x2 = MAX (x2, geometry.x + geometry.width);
y2 = MAX (y2, geometry.y + geometry.height);
}
x11_screen->width = x2 - x1;
x11_screen->height = y2 - y1;
}
static void
process_monitors_change (GdkScreen *screen)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
gint n_monitors;
gint primary_monitor;
GdkX11Monitor *monitors;
gboolean changed;
primary_monitor = x11_screen->primary_monitor;
n_monitors = x11_screen->n_monitors;
monitors = x11_screen->monitors;
x11_screen->n_monitors = 0;
x11_screen->monitors = NULL;
init_multihead (screen);
changed =
!compare_monitors (monitors, n_monitors,
x11_screen->monitors, x11_screen->n_monitors) ||
x11_screen->primary_monitor != primary_monitor;
free_monitors (monitors, n_monitors);
if (changed)
g_signal_emit_by_name (screen, "monitors-changed");
}
static guint32
get_netwm_cardinal_property (GdkScreen *screen,
const gchar *name)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
GdkAtom atom;
guint32 prop = 0;
Atom type;
gint format;
gulong nitems;
gulong bytes_after;
guchar *data;
atom = gdk_atom_intern_static_string (name);
if (!gdk_x11_screen_supports_net_wm_hint (screen, atom))
return 0;
XGetWindowProperty (x11_screen->xdisplay,
x11_screen->xroot_window,
gdk_x11_get_xatom_by_name_for_display (GDK_SCREEN_DISPLAY (screen), name),
0, G_MAXLONG,
False, XA_CARDINAL, &type, &format, &nitems,
&bytes_after, &data);
if (type == XA_CARDINAL)
{
prop = *(gulong *)data;
XFree (data);
}
return prop;
}
static gboolean
gdk_x11_screen_get_setting (GdkScreen *screen,
const gchar *name,
GValue *value)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
const GValue *setting;
if (x11_screen->xsettings == NULL)
goto out;
setting = g_hash_table_lookup (x11_screen->xsettings, name);
if (setting == NULL)
goto out;
if (!g_value_transform (setting, value))
{
g_warning ("Cannot transform xsetting %s of type %s to type %s\n",
name,
g_type_name (G_VALUE_TYPE (setting)),
g_type_name (G_VALUE_TYPE (value)));
goto out;
}
return TRUE;
out:
return _gdk_x11_get_xft_setting (screen, name, value);
}
static void
gdk_x11_screen_dispose (GObject *object)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (object);
int i;
for (i = 0; i < 32; ++i)
{
if (x11_screen->subwindow_gcs[i])
{
XFreeGC (x11_screen->xdisplay, x11_screen->subwindow_gcs[i]);
x11_screen->subwindow_gcs[i] = 0;
}
}
_gdk_x11_xsettings_finish (x11_screen);
if (x11_screen->root_window)
_gdk_window_destroy (x11_screen->root_window, TRUE);
for (i = 0; i < x11_screen->nvisuals; i++)
g_object_run_dispose (G_OBJECT (x11_screen->visuals[i]));
G_OBJECT_CLASS (gdk_x11_screen_parent_class)->dispose (object);
x11_screen->xdisplay = NULL;
x11_screen->xscreen = NULL;
x11_screen->screen_num = -1;
x11_screen->xroot_window = None;
x11_screen->wmspec_check_window = None;
}
void
_gdk_x11_screen_get_edge_monitors (GdkScreen *screen,
gint *top,
gint *bottom,
gint *left,
gint *right)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
gint top_most_pos = x11_screen->height;
gint left_most_pos = x11_screen->width;
gint bottom_most_pos = 0;
gint right_most_pos = 0;
gint i;
#ifdef HAVE_XFREE_XINERAMA
XineramaScreenInfo *x_monitors;
int x_n_monitors;
#endif
*top = *bottom = *left = *right = -1;
#ifdef HAVE_XFREE_XINERAMA
if (!XineramaIsActive (x11_screen->xdisplay))
return;
x_monitors = XineramaQueryScreens (x11_screen->xdisplay, &x_n_monitors);
if (x_n_monitors <= 0 || x_monitors == NULL)
{
if (x_monitors)
XFree (x_monitors);
return;
}
for (i = 0; i < x_n_monitors; i++)
{
if (left && left_most_pos > x_monitors[i].x_org)
{
left_most_pos = x_monitors[i].x_org;
*left = i;
}
if (right && right_most_pos < x_monitors[i].x_org + x_monitors[i].width)
{
right_most_pos = x_monitors[i].x_org + x_monitors[i].width;
*right = i;
}
if (top && top_most_pos > x_monitors[i].y_org)
{
top_most_pos = x_monitors[i].y_org;
*top = i;
}
if (bottom && bottom_most_pos < x_monitors[i].y_org + x_monitors[i].height)
{
bottom_most_pos = x_monitors[i].y_org + x_monitors[i].height;
*bottom = i;
}
}
XFree (x_monitors);
#endif
}
static void
gdk_x11_screen_dispose (GObject *object)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (object);
int i;
for (i = 0; i < 32; ++i)
{
if (x11_screen->subwindow_gcs[i])
{
XFreeGC (x11_screen->xdisplay, x11_screen->subwindow_gcs[i]);
x11_screen->subwindow_gcs[i] = 0;
}
}
_gdk_x11_screen_events_uninit (GDK_SCREEN (object));
if (x11_screen->root_window)
_gdk_window_destroy (x11_screen->root_window, TRUE);
G_OBJECT_CLASS (gdk_x11_screen_parent_class)->dispose (object);
x11_screen->xdisplay = NULL;
x11_screen->xscreen = NULL;
x11_screen->screen_num = -1;
x11_screen->xroot_window = None;
x11_screen->wmspec_check_window = None;
}
static gint
gdk_x11_screen_get_number (GdkScreen *screen)
{
g_return_val_if_fail (GDK_IS_SCREEN (screen), 0);
return GDK_X11_SCREEN (screen)->screen_num;
}
gboolean
_gdk_x11_window_simulate_button (GdkWindow *window,
gint x,
gint y,
guint button, /*1..3*/
GdkModifierType modifiers,
GdkEventType button_pressrelease)
{
GdkScreen *screen;
XButtonEvent xev = {
0, /* type */
0, /* serial */
1, /* send_event */
};
gboolean success;
g_return_val_if_fail (button_pressrelease == GDK_BUTTON_PRESS || button_pressrelease == GDK_BUTTON_RELEASE, FALSE);
g_return_val_if_fail (window != NULL, FALSE);
if (!GDK_WINDOW_IS_MAPPED (window))
return FALSE;
screen = gdk_window_get_screen (window);
if (x < 0 && y < 0)
{
x = window->width / 2;
y = window->height / 2;
}
/* Convert to impl coordinates */
x = x + window->abs_x;
y = y + window->abs_y;
xev.type = button_pressrelease == GDK_BUTTON_PRESS ? ButtonPress : ButtonRelease;
xev.display = GDK_WINDOW_XDISPLAY (window);
xev.window = GDK_WINDOW_XID (window);
xev.root = RootWindow (xev.display, GDK_X11_SCREEN (screen)->screen_num);
xev.subwindow = 0;
xev.time = 0;
xev.x = x;
xev.y = y;
xev.x_root = 0;
xev.y_root = 0;
xev.state = modifiers;
xev.button = button;
gdk_x11_display_error_trap_push (GDK_WINDOW_DISPLAY (window));
xev.same_screen = XTranslateCoordinates (xev.display, xev.window, xev.root,
xev.x, xev.y, &xev.x_root, &xev.y_root,
&xev.subwindow);
if (!xev.subwindow)
xev.subwindow = xev.window;
success = xev.same_screen;
success &= 0 != XWarpPointer (xev.display, None, xev.window, 0, 0, 0, 0, xev.x, xev.y);
success &= 0 != XSendEvent (xev.display, xev.window, True, button_pressrelease == GDK_BUTTON_PRESS ? ButtonPressMask : ButtonReleaseMask, (XEvent*) &xev);
XSync (xev.display, False);
success &= 0 == gdk_x11_display_error_trap_pop(GDK_WINDOW_DISPLAY (window));
return success;
}
static gint
gdk_x11_screen_get_monitor_scale_factor (GdkScreen *screen,
gint monitor_num)
{
GdkX11Screen *screen_x11 = GDK_X11_SCREEN (screen);
return screen_x11->window_scale;
}
static gchar *
gdk_x11_screen_get_monitor_plug_name (GdkScreen *screen,
gint monitor_num)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
return g_strdup (x11_screen->monitors[monitor_num].output_name);
}
static gint
gdk_x11_screen_get_monitor_height_mm (GdkScreen *screen,
gint monitor_num)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
return x11_screen->monitors[monitor_num].height_mm;
}
/*
* It is important that we first request the selection
* notification, and then setup the initial state of
* is_composited to avoid a race condition here.
*/
void
_gdk_x11_screen_setup (GdkScreen *screen)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
gdk_display_request_selection_notification (x11_screen->display,
gdk_x11_xatom_to_atom_for_display (x11_screen->display, get_cm_atom (x11_screen)));
x11_screen->is_composited = check_is_composited (x11_screen->display, x11_screen);
}
/*
* It is important that we first request the selection
* notification, and then setup the initial state of
* is_composited to avoid a race condition here.
*/
void
_gdk_x11_screen_setup (GdkScreen *screen)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
x11_screen->cm_selection_atom = make_cm_atom (x11_screen->screen_num);
gdk_display_request_selection_notification (x11_screen->display,
x11_screen->cm_selection_atom);
x11_screen->is_composited = check_is_composited (x11_screen->display, x11_screen);
}
static void
deinit_multihead (GdkScreen *screen)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
free_monitors (x11_screen->monitors, x11_screen->n_monitors);
x11_screen->n_monitors = 0;
x11_screen->monitors = NULL;
}
void
_gdk_x11_screen_get_edge_monitors (GdkScreen *screen,
gint *top,
gint *bottom,
gint *left,
gint *right)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
gint top_most_pos = HeightOfScreen (GDK_X11_SCREEN (screen)->xscreen);
gint left_most_pos = WidthOfScreen (GDK_X11_SCREEN (screen)->xscreen);
gint bottom_most_pos = 0;
gint right_most_pos = 0;
gint monitor_num;
for (monitor_num = 0; monitor_num < x11_screen->n_monitors; monitor_num++)
{
gint monitor_x = x11_screen->monitors[monitor_num].geometry.x;
gint monitor_y = x11_screen->monitors[monitor_num].geometry.y;
gint monitor_max_x = monitor_x + x11_screen->monitors[monitor_num].geometry.width;
gint monitor_max_y = monitor_y + x11_screen->monitors[monitor_num].geometry.height;
if (left && left_most_pos > monitor_x)
{
left_most_pos = monitor_x;
*left = monitor_num;
}
if (right && right_most_pos < monitor_max_x)
{
right_most_pos = monitor_max_x;
*right = monitor_num;
}
if (top && top_most_pos > monitor_y)
{
top_most_pos = monitor_y;
*top = monitor_num;
}
if (bottom && bottom_most_pos < monitor_max_y)
{
bottom_most_pos = monitor_max_y;
*bottom = monitor_num;
}
}
}
static void
fetch_net_wm_check_window (GdkScreen *screen)
{
GdkX11Screen *x11_screen;
GdkDisplay *display;
Window window;
GTimeVal tv;
gint error;
x11_screen = GDK_X11_SCREEN (screen);
display = x11_screen->display;
g_return_if_fail (GDK_X11_DISPLAY (display)->trusted_client);
if (x11_screen->wmspec_check_window != None)
return; /* already have it */
g_get_current_time (&tv);
if (ABS (tv.tv_sec - x11_screen->last_wmspec_check_time) < 15)
return; /* we've checked recently */
window = get_net_supporting_wm_check (x11_screen, x11_screen->xroot_window);
if (window == None)
return;
if (window != get_net_supporting_wm_check (x11_screen, window))
return;
gdk_x11_display_error_trap_push (display);
/* Find out if this WM goes away, so we can reset everything. */
XSelectInput (x11_screen->xdisplay, window, StructureNotifyMask);
error = gdk_x11_display_error_trap_pop (display);
if (!error)
{
/* We check the window property again because after XGetWindowProperty()
* and before XSelectInput() the window may have been recycled in such a
* way that XSelectInput() doesn't fail but the window is no longer what
* we want.
*/
if (window != get_net_supporting_wm_check (x11_screen, window))
return;
x11_screen->wmspec_check_window = window;
x11_screen->last_wmspec_check_time = tv.tv_sec;
x11_screen->need_refetch_net_supported = TRUE;
x11_screen->need_refetch_wm_name = TRUE;
/* Careful, reentrancy */
_gdk_x11_screen_window_manager_changed (screen);
}
}
static gboolean
gdk_x11_screen_is_composited (GdkScreen *screen)
{
GdkX11Screen *x11_screen;
g_return_val_if_fail (GDK_IS_SCREEN (screen), FALSE);
x11_screen = GDK_X11_SCREEN (screen);
return x11_screen->is_composited;
}
static GdkVisual *
gdk_x11_screen_get_rgba_visual (GdkScreen *screen)
{
GdkX11Screen *x11_screen;
g_return_val_if_fail (GDK_IS_SCREEN (screen), NULL);
x11_screen = GDK_X11_SCREEN (screen);
return x11_screen->rgba_visual;
}
static void
_gdk_x11_screen_events_uninit (GdkScreen *screen)
{
GdkX11Screen *x11_screen = GDK_X11_SCREEN (screen);
if (x11_screen->xsettings_client)
{
xsettings_client_destroy (x11_screen->xsettings_client);
x11_screen->xsettings_client = NULL;
}
}
