ref: db1eb844461b07a25ca49117851fa874fd88e065
dir: /appl/cmd/ip/nppp/pppchat.b/
implement Dialupchat;
#
# Copyright © 2001 Vita Nuova Holdings Limited. All rights reserved.
#
include "sys.m";
sys: Sys;
include "draw.m";
draw: Draw;
Point, Rect: import draw;
include "tk.m";
tk: Tk;
include "wmlib.m";
wmlib: Wmlib;
include "translate.m";
translate: Translate;
Dict: import translate;
dict: ref Dict;
Dialupchat: module
{
init: fn(nil: ref Draw->Context, nil: list of string);
};
# Dimension constant for ISP Connect window
WIDTH: con 300;
HEIGHT: con 58;
LightGreen: con "#00FF80"; # colour for successful blob
Blobx: con 8;
Gapx: con 4;
BARW: con (Blobx+Gapx)*10; # Progress bar width
BARH: con 18; # Progress bar height
DIALQUANTA : con 1000;
ICONQUANTA : con 5000;
pppquanta := DIALQUANTA;
Maxstep: con 9;
init(ctxt: ref Draw->Context, args: list of string)
{
sys = load Sys Sys->PATH;
draw = load Draw Draw->PATH;
tk = load Tk Tk->PATH;
wmlib = load Wmlib Wmlib->PATH;
wmlib->init();
translate = load Translate Translate->PATH;
if(translate != nil) {
translate->init();
dictname := translate->mkdictname("", "pppchat");
dicterr: string;
(dict, dicterr) = translate->opendict(dictname);
if(dicterr != nil)
sys->fprint(sys->fildes(2), "pppchat: can't open %s: %s\n", dictname, dicterr);
}else
sys->fprint(sys->fildes(2), "pppchat: can't load %s: %r\n", Translate->PATH);
tkargs: string;
if(args != nil) {
tkargs = hd args;
args = tl args;
}
sys->pctl(Sys->NEWPGRP, nil);
pppfd := sys->open("/chan/pppctl", Sys->ORDWR);
if(pppfd == nil)
error(sys->sprint("can't open /chan/pppctl: %r"));
(t, wmctl) := wmlib->titlebar(ctxt.screen, tkargs, X("Dialup Connection"), Wmlib->Hide);
cmd := chan of string;
tk->namechan(t, cmd, "cmd");
pb := Progressbar.mk(t, ".f.prog.c", (BARW, BARH));
config_win := array[] of {
"frame .f",
"frame .f.prog",
"frame .f.b",
pb.tkcreate(),
"pack .f.prog.c -pady 6 -side top",
"label .f.stat -fg blue -text {"+X("Initialising connection...")+"}",
"pack .f.stat -side top -fill x -expand 1 -anchor n",
"pack .f -side top -expand 1 -padx 5 -pady 3 -fill both -anchor w",
"pack .f.prog -side top -expand 1 -fill x",
"button .f.b.done -text {"+X("Cancel")+"} -command {send cmd cancel}",
"pack .f.b.done -side right -padx 1 -pady 1 -anchor s",
"button .f.b.retry -text {"+X("Retry")+"} -command {send cmd retry} -state disabled",
"pack .f.b.retry -side left -padx 1 -pady 1 -anchor s",
"pack .f.b -side top -expand 1 -fill x",
"pack propagate . 0",
"update",
};
for(i := 0; i < len config_win; i++)
tkcmd(t, config_win[i]);
connected := 0;
winmapped := 1;
timecount := 0;
xmin := 0;
x := 0;
turn := 0;
pppquanta = DIALQUANTA;
ticks := chan of int;
spawn ppptimer(ticks);
statuslines := chan of (string, string);
pids := chan of int;
spawn ctlreader(pppfd, pids, statuslines);
ctlpid := <-pids;
Work:
for(;;) alt {
s := <-wmctl =>
if(s == "exit")
s = "task";
if(s == "task"){
spawn wmlib->titlectl(t, s);
continue;
}
wmlib->titlectl(t, s);
press := <-cmd =>
case press {
"cancel" or "disconnect" =>
tkcmd(t, sys->sprint(".f.stat configure -text '%s", X("Disconnecting")));
tkcmd(t, "update");
if(sys->fprint(pppfd, "hangup") < 0){
err := sys->sprint("%r");
tkcmd(t, sys->sprint(".f.stat configure -text '%s: %s", X("Error disconnecting"), X(err)));
sys->fprint(sys->fildes(2), "pppchat: can't disconnect: %s\n", err);
}
break Work;
"retry" =>
if(sys->fprint(pppfd, "connect") < 0){
err := sys->sprint("%r");
}
}
<-ticks =>
ticks <-= 1;
if(!connected){
if(pb != nil){
if((turn ^= 1) == 0)
pb.setcolour("white");
else
pb.setcolour(LightGreen);
}
tkcmd(t, "raise .; update");
}
(status, err) := <-statuslines =>
if(status == nil){
status = "0 1 empty status";
if(err != nil)
sys->print("pppchat: !%s\n", err);
} else
sys->print("pppchat: %s\n", status);
(nf, flds) := sys->tokenize(status, " \t\n");
# for(i = 0; i < len status; i++)
# if(status[i] == ' ' || status[i] == '\t') {
# status = status[i+1:];
# break;
# }
if(nf < 3)
break;
step := int hd flds; flds = tl flds;
nstep := int hd flds; flds = tl flds;
if(step < 0)
raise "pppchat: bad step";
case hd flds {
"error:" =>
tkcmd(t, ".f.stat configure -fg red -text '"+X(status));
tkcmd(t, ".f.b.retry configure -state normal");
tkcmd(t, "update");
wmlib->unhide();
winmapped = 1;
pb.stepto(step, "red");
#break Work;
* =>
pb.setcolour(LightGreen);
pb.stepto(step, LightGreen);
}
turn = 0;
statusmsg := X(status);
tkcmd(t, ".f.stat configure -text '"+statusmsg);
tkcmd(t, "raise .; update");
case hd flds {
"up" or "done" =>
if(!connected){
connected = 1;
}
pppquanta = ICONQUANTA;
# display connection speed
if(tl flds != nil)
tkcmd(t, ".f.stat configure -text {"+statusmsg+" "+"SPEED"+" hd tl flds}");
else
tkcmd(t, ".f.stat configure -text {"+statusmsg+"}");
tkcmd(t, ".f.b.done configure -text Disconnect -command 'send cmd disconnect");
tkcmd(t, "update");
sys->sleep(2000);
tkcmd(t, "pack forget .f.prog; update");
spawn wmlib->titlectl(t, "task");
winmapped = 0;
}
tkcmd(t, "update");
}
<-ticks;
ticks <-= 0; # stop ppptimer
kill(ctlpid);
}
ppptimer(ticks: chan of int)
{
do{
sys->sleep(pppquanta);
ticks <-= 1;
}while(<-ticks);
}
ctlreader(fd: ref Sys->FD, pidc: chan of int, lines: chan of (string, string))
{
pidc <-= sys->pctl(0, nil);
buf := array[128] of byte;
while((n := sys->read(fd, buf, len buf)) > 0)
lines <-= (string buf[0:n], nil);
if(n < 0)
lines <-= (nil, sys->sprint("%r"));
else
lines <-= (nil, nil);
}
Progressbar: adt {
t: ref Tk->Toplevel;
canvas: string;
csize: Point;
blobs: list of string;
mk: fn(t: ref Tk->Toplevel, canvas: string, csize: Point): ref Progressbar;
tkcreate: fn(pb: self ref Progressbar): string;
setcolour: fn(pb: self ref Progressbar, c: string);
stepto: fn(pb: self ref Progressbar, step: int, col: string);
destroy: fn(pb: self ref Progressbar);
};
Progressbar.mk(t: ref Tk->Toplevel, canvas: string, csize: Point): ref Progressbar
{
return ref Progressbar(t, canvas, csize, nil);
}
Progressbar.tkcreate(pb: self ref Progressbar): string
{
return sys->sprint("canvas %s -width %d -height %d", pb.canvas, pb.csize.x, pb.csize.y);
}
Progressbar.setcolour(pb: self ref Progressbar, colour: string)
{
if(pb.blobs != nil)
tkcmd(pb.t, sys->sprint("%s itemconfigure %s -fill %s; update", pb.canvas, hd pb.blobs, colour));
}
Progressbar.stepto(pb: self ref Progressbar, step: int, col: string)
{
for(nblob := len pb.blobs; nblob > step+1; nblob--){
tkcmd(pb.t, sys->sprint("%s delete %s", pb.canvas, hd pb.blobs));
pb.blobs = tl pb.blobs;
}
if(nblob == step+1)
return;
p := Point(step*(Blobx+Gapx), 0);
r := Rect(p, p.add((Blobx, pb.csize.y-2)));
pb.blobs = tkcmd(pb.t, sys->sprint("%s create rectangle %d %d %d %d -fill %s", pb.canvas, r.min.x,r.min.y, r.max.x,r.max.y, col)) :: pb.blobs;
}
Progressbar.destroy(pb: self ref Progressbar)
{
tk->cmd(pb.t, "destroy "+pb.canvas); # ignore errors
}
tkcmd(t: ref Tk->Toplevel, s: string): string
{
e := tk->cmd(t, s);
if(e != nil && e[0] == '!')
sys->print("pppchat: tk error: %s [%s]\n", e, s);
return e;
}
kill(pid: int)
{
if(pid > 0 && (fd := sys->open("/prog/"+string pid+"/ctl", Sys->OWRITE)) != nil)
sys->fprint(fd, "kill");
}
error(s: string)
{
sys->fprint(sys->fildes(2), "pppchat: %s\n", s);
raise "fail:error";
}
X(s: string): string
{
if(dict != nil)
return dict.xlate(s);
return s;
}