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api: Move comms stuff to separate file

This commit is contained in:
Kim Woelders 2023-12-09 21:44:52 +01:00
parent d7b1d0c813
commit 4ff99896e0
4 changed files with 232 additions and 208 deletions
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2
api/Makefile.am
View File

@ -10,7 +10,7 @@ lib_LTLIBRARIES = libepplet.la $(EPPLET_LIB_GLX)
include_HEADERS = epplet.h
libepplet_la_SOURCES = epplet.c
libepplet_la_SOURCES = epplet.c comms.c comms.h
libepplet_la_CPPFLAGS = $(AM_CPPFLAGS) $(IMLIB2_CFLAGS) $(X_CFLAGS) -D ENLIGHTENMENT_ROOT=\"$(datadir)/e16\"
libepplet_la_LIBADD = $(IMLIB2_LIBS) $(X_LIBS) -lXext -lX11 -lm
libepplet_la_LDFLAGS = -version-info 4:0:1

209
api/comms.c Normal file
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@ -0,0 +1,209 @@
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "comms.h"
static Window comms_win = 0;
static Window my_win = 0;
static void
_CommsFindCommsWindow(void)
{
unsigned char *s;
Atom a, ar;
unsigned long num, after;
int format;
Window rt;
int dint;
unsigned int duint;
a = XInternAtom(disp, "ENLIGHTENMENT_COMMS", True);
if (a != None)
{
s = NULL;
XGetWindowProperty(disp, root, a, 0, 14, False, AnyPropertyType, &ar,
&format, &num, &after, &s);
if (s)
{
sscanf((char *)s, "%*s %x", (unsigned int *)&comms_win);
XFree(s);
}
else
comms_win = 0;
if (comms_win)
{
if (!XGetGeometry(disp, comms_win, &rt, &dint, &dint,
&duint, &duint, &duint, &duint))
comms_win = 0;
s = NULL;
if (comms_win)
{
XGetWindowProperty(disp, comms_win, a, 0, 14, False,
AnyPropertyType, &ar, &format, &num,
&after, &s);
if (s)
XFree(s);
else
comms_win = 0;
}
}
}
if (comms_win)
XSelectInput(disp, comms_win,
StructureNotifyMask | SubstructureNotifyMask);
}
void
CommsSetup(void)
{
for (;;)
{
_CommsFindCommsWindow();
if (comms_win != None)
break;
sleep(1);
}
if (!my_win)
{
my_win = XCreateWindow(disp, root, -10, -10, 1, 1, 0,
CopyFromParent, InputOnly, CopyFromParent,
0, NULL);
XSelectInput(disp, my_win,
StructureNotifyMask | SubstructureNotifyMask);
}
}
void
CommsHandleDestroy(Window xwin)
{
if (xwin == comms_win)
comms_win = 0;
}
int
CommsHandlePropertyNotify(XEvent *ev)
{
Atom a = 0;
if (comms_win)
return 0;
if (!a)
a = XInternAtom(disp, "ENLIGHTENMENT_COMMS", True);
if (a == ev->xproperty.atom)
CommsSetup();
if (comms_win)
return 1;
return 0;
}
int
CommsSend(const char *buf, unsigned int len)
{
static Atom a = None;
char ss[21];
unsigned int i, j, k;
XEvent ev;
if (!a)
a = XInternAtom(disp, "ENL_MSG", False);
ev.xclient.type = ClientMessage;
ev.xclient.serial = 0;
ev.xclient.send_event = True;
ev.xclient.window = comms_win;
ev.xclient.message_type = a;
ev.xclient.format = 8;
for (i = 0; i < len + 1; i += 12)
{
snprintf(ss, sizeof(ss), "%8x", (int)my_win);
for (j = 0; j < 12; j++)
{
ss[8 + j] = buf[i + j];
if (!buf[i + j])
j = 12;
}
ss[20] = 0;
for (k = 0; k < 20; k++)
ev.xclient.data.b[k] = ss[k];
XSendEvent(disp, comms_win, False, 0, &ev);
}
return len;
}
static Bool
ev_check(Display *d __UNUSED__, XEvent *ev, XPointer p __UNUSED__)
{
if (((ev->type == ClientMessage) && (ev->xclient.window == my_win)) ||
((ev->type == DestroyNotify) &&
(ev->xdestroywindow.window == comms_win)))
return True;
return False;
}
char *
CommsWaitForMessage(void)
{
XEvent ev;
char *msg = NULL;
while ((!msg) && (comms_win))
{
XIfEvent(disp, &ev, ev_check, NULL);
if (ev.type == DestroyNotify)
comms_win = 0;
else
msg = CommsHandleClientMessage(&ev);
}
return msg;
}
char *
CommsHandleClientMessage(XEvent *ev)
{
char s[13], s2[9], *msg = NULL;
int i;
Window win = 0;
static char *c_msg = NULL;
if (!ev)
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, "%x", (int *)&win);
if (win == comms_win)
{
if (c_msg)
{
c_msg = realloc(c_msg, strlen(c_msg) + strlen(s) + 1);
if (!c_msg)
return NULL;
strcat(c_msg, s);
}
else
{
c_msg = malloc(strlen(s) + 1);
if (!c_msg)
return NULL;
strcpy(c_msg, s);
}
if (strlen(s) < 12)
{
msg = c_msg;
c_msg = NULL;
}
}
return msg;
}

16
api/comms.h Normal file
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@ -0,0 +1,16 @@
#ifndef COMMS_H
#define COMMS_H 1
#include <X11/Xlib.h>
extern Display *disp;
extern Window root;
void CommsSetup(void);
int CommsSend(const char *buf, unsigned int len);
char *CommsWaitForMessage(void);
void CommsHandleDestroy(Window xwin);
int CommsHandlePropertyNotify(XEvent * ev);
char *CommsHandleClientMessage(XEvent * ev);
#endif /* COMMS_H */

213
api/epplet.c
View File

@ -1,5 +1,4 @@
#include "config.h"
#include "epplet.h"
#include <errno.h>
#include <fcntl.h>
#include <sys/resource.h>
@ -13,6 +12,9 @@
#include <X11/keysym.h>
#include <X11/extensions/shape.h>
#include "comms.h"
#include "epplet.h"
#define DEPTH() DefaultDepth(disp, DefaultScreen(disp))
#define DEBUG_EVENTS 0
@ -33,6 +35,7 @@ typedef struct {
typedef EppWindow *Epplet_window;
EAPI Display *disp = NULL;
Window root = 0;
static int window_num = 0; /* For window list */
static Epplet_window *windows = NULL; /* List of windows to loop though */
@ -44,9 +47,6 @@ static Epplet_window mainwin; /* Always the main epplet window */
static Atom wmDeleteWindow;
static Window comms_win = 0;
static Window my_win = 0;
static Window root = 0;
static ETimer *q_first = NULL;
static XContext xid_context = 0;
@ -138,17 +138,9 @@ typedef struct {
static ConfigDict *config_dict = NULL;
static void CommsSetup(void);
static void CommsFindCommsWindow(void);
static void CommsHandleDestroy(Window win);
static int CommsHandlePropertyNotify(XEvent * ev);
static char *CommsHandleClientMessage(XEvent * ev);
static char *CommsWaitForMessage(void);
static void Epplet_handle_timer(void);
static ETimer *Epplet_get_first(void);
static void Epplet_handle_event(XEvent * ev);
static Bool ev_check(Display * d, XEvent * ev, XPointer p);
static const char *win_name = NULL;
static const char *win_version = NULL;
static const char *win_info = NULL;
@ -1663,113 +1655,12 @@ Epplet_Loop(void)
}
}
static void
CommsSetup(void)
{
for (;;)
{
CommsFindCommsWindow();
if (comms_win != None)
break;
sleep(1);
}
if (!my_win)
{
my_win = XCreateWindow(disp, root, -10, -10, 1, 1, 0,
CopyFromParent, InputOnly, CopyFromParent,
0, NULL);
XSelectInput(disp, my_win,
StructureNotifyMask | SubstructureNotifyMask);
}
}
static void
CommsHandleDestroy(Window win)
{
if (win == comms_win)
comms_win = 0;
}
static int
CommsHandlePropertyNotify(XEvent *ev)
{
Atom a = 0;
if (comms_win)
return 0;
if (!a)
a = XInternAtom(disp, "ENLIGHTENMENT_COMMS", True);
if (a == ev->xproperty.atom)
CommsSetup();
if (comms_win)
return 1;
return 0;
}
static void
CommsFindCommsWindow(void)
{
unsigned char *s;
Atom a, ar;
unsigned long num, after;
int format;
Window rt;
int dint;
unsigned int duint;
a = XInternAtom(disp, "ENLIGHTENMENT_COMMS", True);
if (a != None)
{
s = NULL;
XGetWindowProperty(disp, root, a, 0, 14, False, AnyPropertyType, &ar,
&format, &num, &after, &s);
if (s)
{
sscanf((char *)s, "%*s %x", (unsigned int *)&comms_win);
XFree(s);
}
else
comms_win = 0;
if (comms_win)
{
if (!XGetGeometry(disp, comms_win, &rt, &dint, &dint,
&duint, &duint, &duint, &duint))
comms_win = 0;
s = NULL;
if (comms_win)
{
XGetWindowProperty(disp, comms_win, a, 0, 14, False,
AnyPropertyType, &ar, &format, &num,
&after, &s);
if (s)
XFree(s);
else
comms_win = 0;
}
}
}
if (comms_win)
XSelectInput(disp, comms_win,
StructureNotifyMask | SubstructureNotifyMask);
}
void
Epplet_send_ipc(const char *fmt, ...)
{
static Atom a = None;
va_list args;
char buf[1024];
char ss[21];
int i, j, k, len;
XEvent ev;
if (!fmt || !disp)
return;
if (!a)
a = XInternAtom(disp, "ENL_MSG", False);
int len;
va_start(args, fmt);
len = vsnprintf(buf, sizeof(buf), fmt, args);
@ -1777,27 +1668,7 @@ Epplet_send_ipc(const char *fmt, ...)
if (len >= (int)sizeof(buf))
len = sizeof(buf) - 1;
ev.xclient.type = ClientMessage;
ev.xclient.serial = 0;
ev.xclient.send_event = True;
ev.xclient.window = comms_win;
ev.xclient.message_type = a;
ev.xclient.format = 8;
for (i = 0; i < len + 1; i += 12)
{
snprintf(ss, sizeof(ss), "%8x", (int)my_win);
for (j = 0; j < 12; j++)
{
ss[8 + j] = buf[i + j];
if (!buf[i + j])
j = 12;
}
ss[20] = 0;
for (k = 0; k < 20; k++)
ev.xclient.data.b[k] = ss[k];
XSendEvent(disp, comms_win, False, 0, (XEvent *) & ev);
}
CommsSend(buf, len);
}
char *
@ -1806,78 +1677,6 @@ Epplet_wait_for_ipc(void)
return CommsWaitForMessage();
}
static Bool
ev_check(Display *d __UNUSED__, XEvent *ev, XPointer p __UNUSED__)
{
if (((ev->type == ClientMessage) && (ev->xclient.window == my_win)) ||
((ev->type == DestroyNotify) &&
(ev->xdestroywindow.window == comms_win)))
return True;
return False;
}
static char *
CommsWaitForMessage(void)
{
XEvent ev;
char *msg = NULL;
while ((!msg) && (comms_win))
{
XIfEvent(disp, &ev, ev_check, NULL);
if (ev.type == DestroyNotify)
comms_win = 0;
else
msg = CommsHandleClientMessage(&ev);
}
return msg;
}
static char *
CommsHandleClientMessage(XEvent *ev)
{
char s[13], s2[9], *msg = NULL;
int i;
Window win = 0;
static char *c_msg = NULL;
if (!ev)
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, "%x", (int *)&win);
if (win == comms_win)
{
if (c_msg)
{
c_msg = realloc(c_msg, strlen(c_msg) + strlen(s) + 1);
if (!c_msg)
return NULL;
strcat(c_msg, s);
}
else
{
c_msg = malloc(strlen(s) + 1);
if (!c_msg)
return NULL;
strcpy(c_msg, s);
}
if (strlen(s) < 12)
{
msg = c_msg;
c_msg = NULL;
}
}
return msg;
}
int
Epplet_get_color(int r, int g, int b)
{