gboolean
meta_core_begin_grab_op (Display *xdisplay,
Window frame_xwindow,
MetaGrabOp op,
gboolean pointer_already_grabbed,
gboolean frame_action,
int button,
gulong modmask,
guint32 timestamp,
int root_x,
int root_y)
{
MetaWindow *window = get_window (xdisplay, frame_xwindow);
MetaDisplay *display;
MetaScreen *screen;
display = meta_display_for_x_display (xdisplay);
screen = meta_display_screen_for_xwindow (display, frame_xwindow);
g_assert (screen != NULL);
return meta_display_begin_grab_op (display, screen, window,
op, pointer_already_grabbed,
frame_action,
button, modmask,
timestamp, root_x, root_y);
}
void
meta_core_lower_beneath_focus_window (Display *xdisplay,
Window xwindow,
guint32 timestamp)
{
XWindowChanges changes;
MetaDisplay *display;
MetaScreen *screen;
MetaWindow *focus_window;
display = meta_display_for_x_display (xdisplay);
screen = meta_display_screen_for_xwindow (display, xwindow);
focus_window = meta_stack_get_top (screen->stack);
if (focus_window == NULL)
return;
changes.stack_mode = Below;
changes.sibling = focus_window->frame ? focus_window->frame->xwindow
: focus_window->xwindow;
meta_error_trap_push (display);
XConfigureWindow (xdisplay,
xwindow,
CWSibling | CWStackMode,
&changes);
meta_error_trap_pop (display, FALSE);
}
void
meta_core_lower_beneath_grab_window (Display *xdisplay,
Window xwindow,
guint32 timestamp)
{
XWindowChanges changes;
MetaDisplay *display;
MetaScreen *screen;
MetaWindow *grab_window;
display = meta_display_for_x_display (xdisplay);
screen = meta_display_screen_for_xwindow (display, xwindow);
grab_window = display->grab_window;
if (grab_window == NULL)
return;
changes.stack_mode = Below;
changes.sibling = grab_window->frame ? grab_window->frame->xwindow
: grab_window->xwindow;
meta_stack_tracker_record_lower_below (screen->stack_tracker,
xwindow,
changes.sibling,
XNextRequest (screen->display->xdisplay));
meta_error_trap_push (display);
XConfigureWindow (xdisplay,
xwindow,
CWSibling | CWStackMode,
&changes);
meta_error_trap_pop (display);
}
static int
x_io_error_handler (Display *xdisplay)
{
MetaDisplay *display;
display = meta_display_for_x_display (xdisplay);
if (display == NULL)
meta_bug ("IO error received for unknown display?\n");
if (errno == EPIPE)
{
meta_warning (_("Lost connection to the display '%s';\n"
"most likely the X server was shut down or you killed/destroyed\n"
"the window manager.\n"),
display->name);
}
else
{
meta_warning (_("Fatal IO error %d (%s) on display '%s'.\n"),
errno, g_strerror (errno),
display->name);
}
/* Xlib would force an exit anyhow */
exit (1);
return 0;
}
LOCAL_SYMBOL void
meta_core_lower_beneath_sibling (Display *xdisplay,
Window xwindow,
Window grab_window,
guint32 timestamp)
{
XWindowChanges changes;
MetaDisplay *display;
MetaScreen *screen;
display = meta_display_for_x_display (xdisplay);
screen = meta_display_screen_for_xwindow (display, xwindow);
changes.stack_mode = Below;
changes.sibling = grab_window;
meta_stack_tracker_record_lower_below (screen->stack_tracker,
xwindow,
changes.sibling,
XNextRequest (screen->display->xdisplay));
meta_error_trap_push (display);
XConfigureWindow (xdisplay,
xwindow,
CWSibling | CWStackMode,
&changes);
meta_error_trap_pop (display);
}
void
meta_core_increment_event_serial (Display *xdisplay)
{
MetaDisplay *display;
display = meta_display_for_x_display (xdisplay);
meta_display_increment_event_serial (display);
}
MetaGrabOp
meta_core_get_grab_op (Display *xdisplay)
{
MetaDisplay *display;
display = meta_display_for_x_display (xdisplay);
return display->grab_op;
}
static int
x_error_handler (Display *xdisplay,
XErrorEvent *error)
{
int retval;
gchar buf[64];
MetaDisplay *display;
ForeignDisplay *foreign;
for (foreign = foreign_displays; foreign != NULL; foreign = foreign->next)
{
if (foreign->dpy == xdisplay)
{
foreign->handler (xdisplay, error, foreign->data);
return 0;
}
}
XGetErrorText (xdisplay, error->error_code, buf, 63);
display = meta_display_for_x_display (xdisplay);
/* Display can be NULL here because the compositing manager
* has its own Display, but Xlib only has one global error handler
*/
if (display->error_traps > 0)
{
/* we're in an error trap, chain to the trap handler
* saved from GDK
*/
meta_verbose ("X error: %s serial %ld error_code %d request_code %d minor_code %d)\n",
buf,
error->serial,
error->error_code,
error->request_code,
error->minor_code);
g_assert (display->error_trap_handler != NULL);
g_assert (display->error_trap_handler != x_error_handler);
retval = (* display->error_trap_handler) (xdisplay, error);
}
else
{
meta_bug ("Unexpected X error: %s serial %ld error_code %d request_code %d minor_code %d)\n",
buf,
error->serial,
error->error_code,
error->request_code,
error->minor_code);
retval = 1; /* compiler warning */
}
return retval;
}
void
meta_core_end_grab_op (Display *xdisplay,
guint32 timestamp)
{
MetaDisplay *display;
display = meta_display_for_x_display (xdisplay);
meta_display_end_grab_op (display, timestamp);
}
void
meta_core_grab_buttons (Display *xdisplay,
Window frame_xwindow)
{
MetaDisplay *display;
display = meta_display_for_x_display (xdisplay);
meta_verbose ("Grabbing buttons on frame 0x%lx\n", frame_xwindow);
meta_display_grab_window_buttons (display, frame_xwindow);
}
int
meta_core_get_grab_button (Display *xdisplay)
{
MetaDisplay *display;
display = meta_display_for_x_display (xdisplay);
if (display->grab_op == META_GRAB_OP_NONE)
return -1;
return display->grab_button;
}
const char*
meta_core_get_workspace_name_with_index (Display *xdisplay,
Window xroot,
int index)
{
MetaDisplay *display;
MetaScreen *screen;
MetaWorkspace *workspace;
display = meta_display_for_x_display (xdisplay);
screen = meta_display_screen_for_root (display, xroot);
g_assert (screen != NULL);
workspace = meta_screen_get_workspace_by_index (screen, index);
return workspace ? meta_workspace_get_name (workspace) : NULL;
}
/* Looks up the MetaWindow representing the frame of the given X window.
* Used as a helper function by a bunch of the functions below.
*
* FIXME: The functions that use this function throw the result away
* after use. Many of these functions tend to be called in small groups,
* which results in get_window() getting called several times in succession
* with the same parameters. We should profile to see whether this wastes
* much time, and if it does we should look into a generalised
* meta_core_get_window_info() which takes a bunch of pointers to variables
* to put its results in, and only fills in the non-null ones.
*/
static MetaWindow *
get_window (Display *xdisplay,
Window frame_xwindow)
{
MetaDisplay *display;
MetaWindow *window;
display = meta_display_for_x_display (xdisplay);
window = meta_display_lookup_x_window (display, frame_xwindow);
if (window == NULL || window->frame == NULL)
{
meta_bug ("No such frame window 0x%lx!\n", frame_xwindow);
return NULL;
}
return window;
}
Window
meta_core_get_grab_frame (Display *xdisplay)
{
MetaDisplay *display;
display = meta_display_for_x_display (xdisplay);
g_assert (display != NULL);
g_assert (display->grab_op == META_GRAB_OP_NONE ||
display->grab_screen != NULL);
g_assert (display->grab_op == META_GRAB_OP_NONE ||
display->grab_screen->display->xdisplay == xdisplay);
if (display->grab_op != META_GRAB_OP_NONE &&
display->grab_window &&
display->grab_window->frame)
return display->grab_window->frame->xwindow;
else
return None;
}
void
meta_core_get (Display *xdisplay,
Window xwindow,
...)
{
va_list args;
MetaCoreGetType request;
MetaDisplay *display = meta_display_for_x_display (xdisplay);
MetaWindow *window = meta_display_lookup_x_window (display, xwindow);
va_start (args, xwindow);
request = va_arg (args, MetaCoreGetType);
/* Now, we special-case the first request slightly. Mostly, requests
* for information on windows which have no frame are errors.
* But sometimes we may want to know *whether* a window has a frame.
* In this case, pass the key META_CORE_WINDOW_HAS_FRAME
* as the *first* request, with a pointer to a boolean; if the window
* has no frame, this will be set to False and meta_core_get will
* exit immediately (so the values of any other requests will be
* undefined). Otherwise it will be set to True and meta_core_get will
* continue happily on its way.
*/
if (request != META_CORE_WINDOW_HAS_FRAME &&
(window == NULL || window->frame == NULL)) {
meta_bug ("No such frame window 0x%lx!\n", xwindow);
return;
}
while (request != META_CORE_GET_END) {
gpointer answer = va_arg (args, gpointer);
switch (request) {
case META_CORE_WINDOW_HAS_FRAME:
*((gboolean*)answer) = window != NULL && window->frame != NULL;
if (!*((gboolean*)answer)) return; /* see above */
break;
case META_CORE_GET_CLIENT_WIDTH:
*((gint*)answer) = window->rect.width;
break;
case META_CORE_GET_CLIENT_HEIGHT:
*((gint*)answer) = window->rect.height;
break;
case META_CORE_IS_TITLEBAR_ONSCREEN:
*((gboolean*)answer) = meta_window_titlebar_is_onscreen (window);
break;
case META_CORE_GET_CLIENT_XWINDOW:
*((Window*)answer) = window->xwindow;
break;
case META_CORE_GET_FRAME_FLAGS:
*((MetaFrameFlags*)answer) = meta_frame_get_flags (window->frame);
break;
case META_CORE_GET_FRAME_TYPE:
{
MetaFrameType base_type = META_FRAME_TYPE_LAST;
switch (window->type)
{
case META_WINDOW_NORMAL:
base_type = META_FRAME_TYPE_NORMAL;
break;
case META_WINDOW_DIALOG:
base_type = META_FRAME_TYPE_DIALOG;
break;
case META_WINDOW_MODAL_DIALOG:
base_type = META_FRAME_TYPE_MODAL_DIALOG;
break;
case META_WINDOW_MENU:
base_type = META_FRAME_TYPE_MENU;
break;
case META_WINDOW_UTILITY:
base_type = META_FRAME_TYPE_UTILITY;
break;
case META_WINDOW_DESKTOP:
case META_WINDOW_DOCK:
case META_WINDOW_TOOLBAR:
case META_WINDOW_SPLASHSCREEN:
/* No frame */
base_type = META_FRAME_TYPE_LAST;
break;
}
if (base_type == META_FRAME_TYPE_LAST)
{
/* can't add border if undecorated */
*((MetaFrameType*)answer) = META_FRAME_TYPE_LAST;
}
else if (window->border_only)
{
/* override base frame type */
*((MetaFrameType*)answer) = META_FRAME_TYPE_BORDER;
}
else
{
*((MetaFrameType*)answer) = base_type;
}
break;
}
case META_CORE_GET_MINI_ICON:
*((GdkPixbuf**)answer) = window->mini_icon;
break;
case META_CORE_GET_ICON:
*((GdkPixbuf**)answer) = window->icon;
break;
case META_CORE_GET_X:
meta_window_get_position (window, (int*)answer, NULL);
break;
case META_CORE_GET_Y:
meta_window_get_position (window, NULL, (int*)answer);
break;
case META_CORE_GET_FRAME_WORKSPACE:
*((gint*)answer) = meta_window_get_net_wm_desktop (window);
break;
case META_CORE_GET_FRAME_X:
*((gint*)answer) = window->frame->rect.x;
break;
case META_CORE_GET_FRAME_Y:
*((gint*)answer) = window->frame->rect.y;
break;
case META_CORE_GET_FRAME_WIDTH:
*((gint*)answer) = window->frame->rect.width;
break;
case META_CORE_GET_FRAME_HEIGHT:
*((gint*)answer) = window->frame->rect.height;
break;
case META_CORE_GET_SCREEN_WIDTH:
*((gint*)answer) = window->screen->rect.width;
break;
case META_CORE_GET_SCREEN_HEIGHT:
*((gint*)answer) = window->screen->rect.height;
break;
default:
meta_warning(_("Unknown window information request: %d"), request);
}
request = va_arg (args, MetaCoreGetType);
}
va_end (args);
}
void
meta_core_get (Display *xdisplay,
Window xwindow,
...)
{
va_list args;
MetaCoreGetType request;
MetaDisplay *display = meta_display_for_x_display (xdisplay);
MetaWindow *window = meta_display_lookup_x_window (display, xwindow);
va_start (args, xwindow);
request = va_arg (args, MetaCoreGetType);
/* Now, we special-case the first request slightly. Mostly, requests
* for information on windows which have no frame are errors.
* But sometimes we may want to know *whether* a window has a frame.
* In this case, pass the key META_CORE_WINDOW_HAS_FRAME
* as the *first* request, with a pointer to a boolean; if the window
* has no frame, this will be set to False and meta_core_get will
* exit immediately (so the values of any other requests will be
* undefined). Otherwise it will be set to True and meta_core_get will
* continue happily on its way.
*/
if (request != META_CORE_WINDOW_HAS_FRAME &&
(window == NULL || window->frame == NULL)) {
meta_bug ("No such frame window 0x%lx!\n", xwindow);
return;
}
while (request != META_CORE_GET_END) {
gpointer answer = va_arg (args, gpointer);
switch (request) {
case META_CORE_WINDOW_HAS_FRAME:
*((gboolean*)answer) = window != NULL && window->frame != NULL;
if (!*((gboolean*)answer)) return; /* see above */
break;
case META_CORE_GET_CLIENT_WIDTH:
*((gint*)answer) = window->rect.width;
break;
case META_CORE_GET_CLIENT_HEIGHT:
*((gint*)answer) = window->rect.height;
break;
case META_CORE_GET_CLIENT_XWINDOW:
*((Window*)answer) = window->xwindow;
break;
case META_CORE_GET_FRAME_FLAGS:
*((MetaFrameFlags*)answer) = meta_frame_get_flags (window->frame);
break;
case META_CORE_GET_FRAME_TYPE:
*((MetaFrameType*)answer) = meta_window_get_frame_type (window);
break;
case META_CORE_GET_MINI_ICON:
*((GdkPixbuf**)answer) = window->mini_icon;
break;
case META_CORE_GET_ICON:
*((GdkPixbuf**)answer) = window->icon;
break;
case META_CORE_GET_X:
meta_window_get_position (window, (int*)answer, NULL);
break;
case META_CORE_GET_Y:
meta_window_get_position (window, NULL, (int*)answer);
break;
case META_CORE_GET_FRAME_WORKSPACE:
*((gint*)answer) = meta_window_get_net_wm_desktop (window);
break;
case META_CORE_GET_FRAME_X:
*((gint*)answer) = window->frame->rect.x;
break;
case META_CORE_GET_FRAME_Y:
*((gint*)answer) = window->frame->rect.y;
break;
case META_CORE_GET_FRAME_WIDTH:
*((gint*)answer) = window->frame->rect.width;
break;
case META_CORE_GET_FRAME_HEIGHT:
*((gint*)answer) = window->frame->rect.height;
break;
case META_CORE_GET_THEME_VARIANT:
*((char**)answer) = window->gtk_theme_variant;
break;
case META_CORE_GET_SCREEN_WIDTH:
*((gint*)answer) = window->screen->rect.width;
break;
case META_CORE_GET_SCREEN_HEIGHT:
*((gint*)answer) = window->screen->rect.height;
break;
default:
meta_warning(_("Unknown window information request: %d"), request);
}
request = va_arg (args, MetaCoreGetType);
}
va_end (args);
}
