105 lines
2.7 KiB
C
105 lines
2.7 KiB
C
/* $Id$ */
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/* Copyright (c) 2012 Pierre Pronchery <khorben@defora.org> */
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/* This file is part of DeforaOS Desktop libDesktop */
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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, version 3 of the License.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>. */
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <gdk/gdkx.h>
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#include <System.h>
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#include "Desktop.h"
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/* Message */
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/* private */
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/* types */
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typedef struct _MessageCallback
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{
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DesktopMessageCallback callback;
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void * data;
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} MessageCallback;
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/* prototypes */
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/* callbacks */
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static GdkFilterReturn _desktop_message_on_callback(GdkXEvent * xevent,
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GdkEvent * event, gpointer data);
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/* public */
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/* functions */
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/* desktop_message_register */
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int desktop_message_register(char const * destination,
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DesktopMessageCallback callback, void * data)
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{
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MessageCallback * mc;
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if((mc = malloc(sizeof(*mc))) == NULL)
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return -error_set_code(1, "%s", strerror(errno));
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mc->callback = callback;
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mc->data = data;
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gdk_add_client_message_filter(gdk_atom_intern(destination, FALSE),
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_desktop_message_on_callback, mc);
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return 0;
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}
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/* desktop_message_send */
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int desktop_message_send(char const * destination, uint32_t value1,
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uint32_t value2, uint32_t value3)
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{
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GdkEvent event;
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GdkEventClient * client = &event.client;
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memset(&event, 0, sizeof(event));
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client->type = GDK_CLIENT_EVENT;
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client->window = NULL;
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client->send_event = TRUE;
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client->message_type = gdk_atom_intern(destination, FALSE);
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client->data_format = 32;
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client->data.l[0] = value1;
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client->data.l[1] = value2;
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client->data.l[2] = value3;
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gdk_event_send_clientmessage_toall(&event);
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return 0;
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}
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/* private */
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/* callbacks */
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/* desktop_message_on_callback */
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static GdkFilterReturn _desktop_message_on_callback(GdkXEvent * xevent,
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GdkEvent * event, gpointer data)
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{
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MessageCallback * mc = data;
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XEvent * xev = xevent;
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XClientMessageEvent * xcme;
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uint32_t value1;
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uint32_t value2;
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uint32_t value3;
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if(xev->type != ClientMessage)
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return GDK_FILTER_CONTINUE;
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xcme = &xev->xclient;
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value1 = xcme->data.l[0];
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value2 = xcme->data.l[1];
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value3 = xcme->data.l[2];
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if(mc->callback(mc->data, value1, value2, value3) == 0)
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return GDK_FILTER_CONTINUE;
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free(mc);
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return GDK_FILTER_REMOVE;
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}
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