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/*
* Copyright (C) 2000-2007 Carsten Haitzler, Geoff Harrison and various contributors
* Copyright (C) 2004-2008 Kim Woelders
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies of the Software, its documentation and marketing & publicity
* materials, and acknowledgment shall be given in the documentation, materials
* and software packages that this Software was used.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "E.h"
static Window root_win;
static Window my_win;
void
CommsInit(void)
{
char *str;
str = getenv("ENL_WM_ROOT");
root_win = (str) ? strtoul(str, NULL, 0) : DefaultRootWindow(disp);
}
Window
CommsSetup(Window win __UNUSED__)
{
XSetWindowAttributes attr;
attr.override_redirect = False;
my_win = XCreateWindow(disp, root_win, -100, -100, 5, 5, 0, 0, InputOnly,
DefaultVisual(disp, DefaultScreen(disp)),
CWOverrideRedirect, &attr);
return my_win;
}
Window
CommsFindCommsWindow(void)
{
unsigned char *s;
Atom a, ar;
unsigned long num, after;
int format;
Window rt, comms_win;
int dint;
unsigned int duint;
comms_win = None;
a = XInternAtom(disp, "ENLIGHTENMENT_COMMS", True);
if (a == None)
return None;
s = NULL;
XGetWindowProperty(disp, root_win, a, 0, 14, False, AnyPropertyType,
&ar, &format, &num, &after, &s);
if (!s)
return None;
sscanf((char *)s, "%*s %lx", &comms_win);
XFree(s);
if (comms_win == None)
return None;
if (!XGetGeometry(disp, comms_win, &rt, &dint, &dint,
&duint, &duint, &duint, &duint))
return None;
s = NULL;
XGetWindowProperty(disp, comms_win, a, 0, 14, False,
AnyPropertyType, &ar, &format, &num, &after, &s);
if (!s)
return None;
XFree(s);
XSelectInput(disp, comms_win, StructureNotifyMask | SubstructureNotifyMask);
return comms_win;
}
void
CommsSend(Client * c, const char *s)
{
char ss[20];
int i, j, k, len;
XEvent ev;
Atom a;
if ((!s) || (!c) || (c->win == None))
return;
a = XInternAtom(disp, "ENL_MSG", True);
ev.xclient.type = ClientMessage;
ev.xclient.serial = 0;
ev.xclient.send_event = True;
ev.xclient.window = c->win;
ev.xclient.message_type = a;
ev.xclient.format = 8;
len = strlen(s);
for (i = 0; i < len + 1; i += 12)
{
sprintf(ss, "%8x", (int)my_win);
for (j = 0; j < 12; j++)
{
ss[8 + j] = s[i + j];
if (!s[i + j])
j = 12;
}
for (k = 0; k < 20; k++)
ev.xclient.data.b[k] = ss[k];
XSendEvent(disp, c->win, False, 0, &ev);
}
}
char *
CommsGet(Client * c, XEvent * ev)
{
char s[13], s2[9], *msg;
unsigned int i;
Window win;
if ((!ev) || (!c))
return NULL;
if (ev->type != ClientMessage)
return NULL;
s[12] = 0;
s2[8] = 0;
msg = NULL;
for (i = 0; i < 8; i++)
s2[i] = ev->xclient.data.b[i];
for (i = 0; i < 12; i++)
s[i] = ev->xclient.data.b[i + 8];
sscanf(s2, "%lx", &win);
/* append text to end of msg */
i = (c->msg) ? strlen(c->msg) : 0;
c->msg = EREALLOC(char, c->msg, i + strlen(s) + 1);
if (!c->msg)
return NULL;
strcpy(c->msg + i, s);
if (strlen(s) < 12)
{
msg = c->msg;
c->msg = NULL;
}
return msg;
}
Client *
ClientCreate(Window win)
{
Client *c;
c = EMALLOC(Client, 1);
if (!c)
return NULL;
c->win = win;
c->msg = NULL;
return c;
}
void
ClientDestroy(Client * c)
{
if (!c)
return;
Efree(c->msg);
Efree(c);
}