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91b5f24da8
2008-06-30 Thomas Thurman <tthurman@gnome.org>
* src/core/bell.[ch]: Move comments for non-statics from the .c to .h.
* Doxyfile: adapt better for C, and make quiet.
svn path=/trunk/; revision=3777
109 lines
3.9 KiB
C
109 lines
3.9 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/**
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* \file bell.h Ring the bell or flash the screen
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*
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* Sometimes, X programs "ring the bell", whatever that means. Metacity lets
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* the user configure the bell to be audible or visible (aka visual), and
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* if it's visual it can be configured to be frame-flash or fullscreen-flash.
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* We never get told about audible bells; X handles them just fine by itself.
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*
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* The visual bell was the result of a discussion in Bugzilla here:
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* <http://bugzilla.gnome.org/show_bug.cgi?id=99886>.
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*/
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/*
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* Copyright (C) 2002 Sun Microsystems Inc.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#include <X11/Xlib.h>
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#ifdef HAVE_XKB
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#include <X11/XKBlib.h>
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#endif
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#include "display-private.h"
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#include "frame-private.h"
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#ifdef HAVE_XKB
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/**
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* Gives the user some kind of visual bell; in fact, this is our response
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* to any kind of bell request, but we set it up so that we only get
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* notified about visual bells, and X deals with audible ones.
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*
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* If the configure script found we had no XKB, this does not exist.
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*
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* \param display The display the bell event came in on
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* \param xkb_ev The bell event we just received
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*/
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void meta_bell_notify (MetaDisplay *display, XkbAnyEvent *xkb_ev);
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#endif
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/**
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* Turns the bell to audible or visual. This tells X what to do, but
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* not Metacity; you will need to set the "visual bell" pref for that.
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*
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* If the configure script found we had no XKB, this is a no-op.
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*
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* \param display The display we're configuring
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* \param audible True for an audible bell, false for a visual bell
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*/
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void meta_bell_set_audible (MetaDisplay *display, gboolean audible);
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/**
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* Initialises the bell subsystem. This involves intialising
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* XKB (which, despite being a keyboard extension, is the
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* place to look for bell notifications), then asking it
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* to send us bell notifications, and then also switching
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* off the audible bell if we're using a visual one ourselves.
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*
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* Unlike most X extensions we use, we only initialise XKB here
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* (rather than in main()). It's possible that XKB is not
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* installed at all, but if that was known at build time
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* we will have HAVE_XKB undefined, which will cause this
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* function to be a no-op.
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*
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* \param display The display which is opening
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*
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* \bug There is a line of code that's never run that tells
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* XKB to reset the bell status after we quit. Bill H said
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* (<http://bugzilla.gnome.org/show_bug.cgi?id=99886#c12>)
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* that XFree86's implementation is broken so we shouldn't
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* call it, but that was in 2002. Is it working now?
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*/
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gboolean meta_bell_init (MetaDisplay *display);
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/**
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* Shuts down the bell subsystem.
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*
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* \param display The display which is closing
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*
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* \bug This is never called! If we had XkbSetAutoResetControls
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* enabled in meta_bell_init(), this wouldn't be a problem, but
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* we don't.
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*/
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void meta_bell_shutdown (MetaDisplay *display);
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/**
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* Deals with a frame being destroyed. This is important because if we're
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* using a visual bell, we might be flashing the edges of the frame, and
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* so we'd have a timeout function waiting ready to un-flash them. If the
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* frame's going away, we can tell the timeout not to bother.
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*
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* \param frame The frame which is being destroyed
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*/
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void meta_bell_notify_frame_destroy (MetaFrame *frame);
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