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eterm/src/e.c

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/* e.c -- Eterm Enlightenment support
* This file is original work by Michael Jennings <mej@eterm.org> and
* Tuomo Venalainen <vendu@cc.hut.fi>. This file, and any other file
* bearing this same message or a similar one, is distributed under
* the GNU Public License (GPL) as outlined in the COPYING file.
*
* Copyright (C) 1997, Michael Jennings and Tuomo Venalainen
*
* 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.
*
*/
static const char cvs_ident[] = "$Id$";
#include "config.h"
#include "feature.h"
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <limits.h>
#include <X11/cursorfont.h>
#include "../libmej/debug.h"
#include "../libmej/mem.h"
#include "../libmej/strings.h"
#include "debug.h"
#include "e.h"
#include "command.h"
#include "main.h"
#include "options.h"
#include "pixmap.h"
Window ipc_win = None;
Atom ipc_atom = None;
/* Returns true if running under E, false otherwise */
unsigned char
check_for_enlightenment(void)
{
static char have_e = -1;
if (have_e == -1) {
if (XInternAtom(Xdisplay, "ENLIGHTENMENT_COMMS", True) != None) {
D_X11(("Enlightenment detected.\n"));
have_e = 1;
} else {
D_X11(("Enlightenment not detected.\n"));
have_e = 0;
}
}
return (have_e);
}
Window
enl_ipc_get_win(void)
{
unsigned char *str = NULL;
Atom prop, prop2;
unsigned long num, after;
int format;
Window dummy_win;
int dummy_int;
unsigned int dummy_uint;
prop = XInternAtom(Xdisplay, "ENLIGHTENMENT_COMMS", True);
if (prop == None) {
return None;
}
XGetWindowProperty(Xdisplay, Xroot, prop, 0, 14, False, AnyPropertyType, &prop2, &format, &num, &after, &str);
if (str) {
sscanf((char *) str, "%*s %x", (unsigned int *) &ipc_win);
XFree(str);
}
if (ipc_win != None) {
if (!XGetGeometry(Xdisplay, ipc_win, &dummy_win, &dummy_int, &dummy_int, &dummy_uint, &dummy_uint, &dummy_uint, &dummy_uint)) {
ipc_win = None;
}
str = NULL;
if (ipc_win != None) {
XGetWindowProperty(Xdisplay, ipc_win, prop, 0, 14, False, AnyPropertyType, &prop2, &format, &num, &after, &str);
if (str) {
XFree(str);
} else {
ipc_win = None;
}
}
}
if (ipc_win != None) {
XSelectInput(Xdisplay, ipc_win, StructureNotifyMask | SubstructureNotifyMask);
enl_ipc_send("set clientname " APL_NAME);
enl_ipc_send("set version " VERSION);
enl_ipc_send("set email mej@eterm.org");
enl_ipc_send("set web http://www.eterm.org/");
enl_ipc_send("set info Eterm Enlightened Terminal Emulator");
}
return (ipc_win);
}
void
enl_ipc_send(char *str)
{
char buff[21];
register unsigned short i;
register unsigned char j;
unsigned short len;
XEvent ev;
ASSERT(str != NULL);
D_ENL(("enl_ipc_send(): Sending \"%s\" to Enlightenment.\n", str));
if (ipc_win == None) {
if ((ipc_win = enl_ipc_get_win()) == None) {
D_ENL((" ...or perhaps not, since Enlightenment doesn't seem to be running. No IPC window, no IPC. Sorry....\n"));
return;
}
}
len = strlen(str);
ipc_atom = XInternAtom(Xdisplay, "ENL_MSG", False);
if (ipc_atom == None) {
D_ENL(("enl_ipc_send(): IPC error: Unable to find/create ENL_MSG atom.\n"));
return;
}
ev.xclient.type = ClientMessage;
ev.xclient.serial = 0;
ev.xclient.send_event = True;
ev.xclient.window = ipc_win;
ev.xclient.message_type = ipc_atom;
ev.xclient.format = 8;
for (i = 0; i < len + 1; i += 12) {
sprintf(buff, "%8x", (int) TermWin.parent);
for (j = 0; j < 12; j++) {
buff[8 + j] = str[i + j];
if (!str[i + j]) {
break;
}
}
buff[20] = 0;
for (j = 0; j < 20; j++) {
ev.xclient.data.b[j] = buff[j];
}
XSendEvent(Xdisplay, ipc_win, False, 0, (XEvent *) & ev);
}
D_ENL(("enl_ipc_send(): Message sent.\n"));
}
char *
enl_wait_for_reply(void)
{
XEvent ev;
static char msg_buffer[20];
register unsigned char i;
for (; !XCheckTypedWindowEvent(Xdisplay, TermWin.parent, ClientMessage, &ev););
for (i = 0; i < 20; i++) {
msg_buffer[i] = ev.xclient.data.b[i];
}
return (msg_buffer + 8);
}
char *
enl_ipc_get(const char *msg_data)
{
static char *message = NULL;
static unsigned short len = 0;
char buff[13], *ret_msg = NULL;
register unsigned char i;
unsigned char blen;
for (i = 0; i < 12; i++) {
buff[i] = msg_data[i];
}
buff[12] = 0;
blen = strlen(buff);
if (message != NULL) {
len += blen;
message = (char *) REALLOC(message, len + 1);
strcat(message, buff);
} else {
len = blen;
message = (char *) MALLOC(len + 1);
strcpy(message, buff);
}
if (blen < 12) {
ret_msg = message;
message = NULL;
D_ENL(("enl_ipc_get(): Received complete reply: \"%s\"\n", ret_msg));
}
return (ret_msg);
}
void
enl_query_for_image(unsigned char type)
{
char query[255], *filename;
snprintf(query, sizeof(query), "insert correct IPC command here");
enl_ipc_send("");
for (; !(filename = enl_ipc_get(enl_wait_for_reply())););
/* Extract filename */
load_image(filename, type);
}
void
eterm_ipc_parse(char *str)
{
char *params;
ASSERT(str != NULL);
params = strchr(str, ':');
if (params) {
*params++ = 0; /* Nuke the colon */
}
if (!strcasecmp(str, "echo") || !strcasecmp(str, "tty_write")) {
if (params) {
tt_write(params, strlen(params));
} else {
print_error("IPC Error: Invalid syntax in command \"%s\"", str);
}
} else if (!strcasecmp(str, "parse")) {
if (params) {
cmd_write(params, strlen(params));
} else {
print_error("IPC Error: Invalid syntax in command \"%s\"", str);
}
} else if (!strcasecmp(str, "enl_send")) {
if (params) {
enl_ipc_send(params);
} else {
print_error("IPC Error: Invalid syntax in command \"%s\"", str);
}
} else if (!strcasecmp(str, "enl_query")) {
if (params) {
char *reply, header[512];
enl_ipc_send(params);
for (; !(reply = enl_ipc_get(enl_wait_for_reply())););
snprintf(header, sizeof(header), "Enlightenment IPC Reply to \"%s\":\n\n", params);
tt_write(header, strlen(header));
tt_write(reply, strlen(reply));
tt_write("\n", 1);
FREE(reply);
} else {
print_error("IPC Error: Invalid syntax in command \"%s\"", str);
}
} else if (!strcasecmp(str, "winop")) {
if (params) {
eterm_handle_winop(params);
} else {
print_error("IPC Error: Invalid syntax in command \"%s\"", str);
}
} else if (!strcasecmp(str, "exit")) {
exit(0);
} else {
print_error("IPC Error: Unrecognized command \"%s\"", str);
}
}
void
eterm_ipc_send(char *str)
{
}
char *
eterm_ipc_get(void)
{
return (NULL);
}
void
eterm_handle_winop(char *action)
{
char *winid;
Window win = 0;
ASSERT(action != NULL);
winid = strchr(action, ' ');
if (winid) {
win = (Window) strtoul(winid + 1, (char **) NULL, 0);
}
if (win == 0) { /* If no window ID was given, or if the strtoul() call failed */
win = TermWin.parent;
}
if (!BEG_STRCASECMP(action, "raise")) {
XRaiseWindow(Xdisplay, win);
} else if (!BEG_STRCASECMP(action, "lower")) {
XLowerWindow(Xdisplay, win);
} else if (!BEG_STRCASECMP(action, "map")) {
XMapWindow(Xdisplay, win);
} else if (!BEG_STRCASECMP(action, "unmap")) {
XUnmapWindow(Xdisplay, win);
} else if (!BEG_STRCASECMP(action, "kill")) {
XKillClient(Xdisplay, win);
} else if (!BEG_STRCASECMP(action, "iconify")) {
XIconifyWindow(Xdisplay, win, Xscreen);
} else {
print_error("IPC Error: Unrecognized window operation \"%s\"", action);
}
}
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