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/* Metacity visual bell */
/*
* Copyright (C) 2002 Sun Microsystems Inc.
* Copyright (C) 2005, 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.
*/
#include <config.h>
#include "bell.h"
#include "screen.h"
#include "prefs.h"
static void
meta_bell_flash_screen (MetaDisplay *display,
MetaScreen *screen)
{
Window root = screen->xroot;
int width = screen->rect.width;
int height = screen->rect.height;
if (screen->flash_window == None)
{
Visual *visual = (Visual *)CopyFromParent;
XSetWindowAttributes xswa;
int depth = CopyFromParent;
xswa.save_under = True;
xswa.override_redirect = True;
/*
* TODO: use XGetVisualInfo and determine which is an
* overlay, if one is present, and use the Overlay visual
* for this window (for performance reasons).
* Not sure how to tell this yet...
*/
screen->flash_window = XCreateWindow (display->xdisplay, root,
0, 0, width, height,
0, depth,
InputOutput,
visual,
/* note: XSun doesn't like SaveUnder here */
CWSaveUnder | CWOverrideRedirect,
&xswa);
XSelectInput (display->xdisplay, screen->flash_window, ExposureMask);
XMapWindow (display->xdisplay, screen->flash_window);
XSync (display->xdisplay, False);
XFlush (display->xdisplay);
XUnmapWindow (display->xdisplay, screen->flash_window);
}
else
{
/* just draw something in the window */
GC gc = XCreateGC (display->xdisplay, screen->flash_window, 0, NULL);
XMapWindow (display->xdisplay, screen->flash_window);
XSetForeground (display->xdisplay, gc,
WhitePixel (display->xdisplay,
XScreenNumberOfScreen (screen->xscreen)));
XFillRectangle (display->xdisplay, screen->flash_window, gc,
0, 0, width, height);
XSetForeground (display->xdisplay, gc,
BlackPixel (display->xdisplay,
XScreenNumberOfScreen (screen->xscreen)));
XFillRectangle (display->xdisplay, screen->flash_window, gc,
0, 0, width, height);
XFlush (display->xdisplay);
XSync (display->xdisplay, False);
XUnmapWindow (display->xdisplay, screen->flash_window);
XFreeGC (display->xdisplay, gc);
}
if (meta_prefs_get_focus_mode () != META_FOCUS_MODE_CLICK &&
!display->mouse_mode)
meta_display_increment_focus_sentinel (display);
XFlush (display->xdisplay);
}
#ifdef HAVE_XKB
static void
meta_bell_flash_fullscreen (MetaDisplay *display,
XkbAnyEvent *xkb_ev)
{
XkbBellNotifyEvent *xkb_bell_ev = (XkbBellNotifyEvent *) xkb_ev;
MetaScreen *screen;
g_assert (xkb_ev->xkb_type == XkbBellNotify);
if (xkb_bell_ev->window != None)
{
screen = meta_display_screen_for_xwindow (display, xkb_bell_ev->window);
if (screen)
meta_bell_flash_screen (display, screen);
}
else
{
GSList *screen_list = display->screens;
while (screen_list)
{
screen = (MetaScreen *) screen_list->data;
meta_bell_flash_screen (display, screen);
screen_list = screen_list->next;
}
}
}
static gboolean
meta_bell_unflash_frame (gpointer data)
{
MetaFrame *frame = (MetaFrame *) data;
frame->is_flashing = 0;
meta_frame_queue_draw (frame);
return FALSE;
}
static void
meta_bell_flash_window_frame (MetaWindow *window)
{
g_assert (window->frame != NULL);
window->frame->is_flashing = 1;
meta_frame_queue_draw (window->frame);
g_timeout_add_full (G_PRIORITY_DEFAULT_IDLE, 100,
meta_bell_unflash_frame, window->frame, NULL);
}
static void
meta_bell_flash_frame (MetaDisplay *display,
XkbAnyEvent *xkb_ev)
{
XkbBellNotifyEvent *xkb_bell_event = (XkbBellNotifyEvent *) xkb_ev;
MetaWindow *window;
g_assert (xkb_ev->xkb_type == XkbBellNotify);
window = meta_display_lookup_x_window (display, xkb_bell_event->window);
if (!window && (display->focus_window) && (display->focus_window->frame))
{
window = display->focus_window;
}
if (window)
{
meta_bell_flash_window_frame (window);
}
else /* revert to fullscreen flash if there's no focussed window */
{
meta_bell_flash_fullscreen (display, xkb_ev);
}
}
static void
meta_bell_visual_notify (MetaDisplay *display,
XkbAnyEvent *xkb_ev)
{
switch (meta_prefs_get_visual_bell_type ())
{
case META_VISUAL_BELL_FULLSCREEN_FLASH:
meta_bell_flash_fullscreen (display, xkb_ev);
break;
case META_VISUAL_BELL_FRAME_FLASH:
meta_bell_flash_frame (display, xkb_ev); /* does nothing yet */
break;
case META_VISUAL_BELL_INVALID:
/* do nothing */
break;
}
}
void
meta_bell_notify (MetaDisplay *display,
XkbAnyEvent *xkb_ev)
{
/* flash something */
if (meta_prefs_get_visual_bell ())
meta_bell_visual_notify (display, xkb_ev);
}
#endif
void
meta_bell_set_audible (MetaDisplay *display, gboolean audible)
{
#ifdef HAVE_XKB
XkbChangeEnabledControls (display->xdisplay,
XkbUseCoreKbd,
XkbAudibleBellMask,
audible ? XkbAudibleBellMask : 0);
#endif
}
gboolean
meta_bell_init (MetaDisplay *display)
{
#ifdef HAVE_XKB
int xkb_base_error_type, xkb_opcode;
if (!XkbQueryExtension (display->xdisplay, &xkb_opcode,
&display->xkb_base_event_type,
&xkb_base_error_type,
NULL, NULL))
{
display->xkb_base_event_type = -1;
g_message ("could not find XKB extension.");
return FALSE;
}
else
{
unsigned int mask = XkbBellNotifyMask;
gboolean visual_bell_auto_reset = FALSE;
/* TRUE if and when non-broken version is available */
XkbSelectEvents (display->xdisplay,
XkbUseCoreKbd,
XkbBellNotifyMask,
XkbBellNotifyMask);
XkbChangeEnabledControls (display->xdisplay,
XkbUseCoreKbd,
XkbAudibleBellMask,
meta_prefs_bell_is_audible ()
? XkbAudibleBellMask : 0);
if (visual_bell_auto_reset) {
XkbSetAutoResetControls (display->xdisplay,
XkbAudibleBellMask,
&mask,
&mask);
}
return TRUE;
}
#endif
return FALSE;
}
void
meta_bell_shutdown (MetaDisplay *display)
{
#ifdef HAVE_XKB
/* TODO: persist initial bell state in display, reset here */
XkbChangeEnabledControls (display->xdisplay,
XkbUseCoreKbd,
XkbAudibleBellMask,
XkbAudibleBellMask);
#endif
}
void
meta_bell_notify_frame_destroy (MetaFrame *frame)
{
if (frame->is_flashing)
g_source_remove_by_funcs_user_data (&g_timeout_funcs, frame);
}
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