102 lines
3.7 KiB
C
102 lines
3.7 KiB
C
/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
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obt/xqueue.h for the Openbox window manager
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Copyright (c) 2010 Dana Jansens
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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See the COPYING file for a copy of the GNU General Public License.
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*/
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#ifndef __obt_xqueue_h
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#define __obt_xqueue_h
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#include <glib.h>
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#include <X11/Xlib.h>
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G_BEGIN_DECLS
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typedef struct _ObtXQueueWindowType {
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Window window;
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int type;
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} ObtXQueueWindowType;
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typedef struct _ObtXQueueWindowMessage {
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Window window;
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Atom message;
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} ObtXQueueWindowMessage;
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typedef gboolean (*xqueue_match_func)(XEvent *e, gpointer data);
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/*! Returns TRUE if the event matches the window pointed to by @data */
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gboolean xqueue_match_window(XEvent *e, gpointer data);
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/*! Returns TRUE if the event matches the type contained in the value of @data */
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gboolean xqueue_match_type(XEvent *e, gpointer data);
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/*! Returns TRUE if the event matches the type and window in the
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ObtXQueueWindowType pointed to by @data */
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gboolean xqueue_match_window_type(XEvent *e, gpointer data);
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/*! Returns TRUE if a ClientMessage event matches the message and window in the
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ObtXQueueWindowMessage pointed to by @data */
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gboolean xqueue_match_window_message(XEvent *e, gpointer data);
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/*! Returns TRUE and passes the next event in the queue and removes it from
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the queue. On error, returns FALSE */
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gboolean xqueue_next(XEvent *event_return);
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/*! Returns TRUE and passes the next event in the local queue and removes it
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from the queue. If no event is in the local queue, it returns FALSE. */
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gboolean xqueue_next_local(XEvent *event_return);
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/*! Returns TRUE if there is anything in the local event queue, and FALSE
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otherwise. */
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gboolean xqueue_pending_local(void);
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/*! Returns TRUE and passes the next event in the queue, or FALSE if there
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is an error */
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gboolean xqueue_peek(XEvent *event_return);
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/*! Returns TRUE and passes the next event in the queue, if there is one,
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and returns FALSE otherwise. */
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gboolean xqueue_peek_local(XEvent *event_return);
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/*! Returns TRUE if xqueue_match_func returns TRUE for some event in the
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current event queue or in the stream of events from the server,
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and passes the matching event without removing it from the queue.
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This blocks until an event is found or an error occurs. */
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gboolean xqueue_exists(xqueue_match_func match, gpointer data);
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/*! Returns TRUE if xqueue_match_func returns TRUE for some event in the
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current event queue, and passes the matching event without removing it
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from the queue. */
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gboolean xqueue_exists_local(xqueue_match_func match, gpointer data);
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/*! Returns TRUE if xqueue_match_func returns TRUE for some event in the
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current event queue, and passes the matching event while removing it
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from the queue. */
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gboolean xqueue_remove_local(XEvent *event_return,
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xqueue_match_func match, gpointer data);
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typedef void (*ObtXQueueFunc)(const XEvent *ev, gpointer data);
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/*! Begin listening for X events in the default GMainContext, and feed them
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to the registered callback functions, added with xqueue_add_callback(). */
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void xqueue_listen(void);
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void xqueue_add_callback(ObtXQueueFunc f, gpointer data);
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void xqueue_remove_callback(ObtXQueueFunc f, gpointer data);
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G_END_DECLS
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#endif
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