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implement Dmwm;
include "sys.m";
sys: Sys;
include "draw.m";
draw: Draw;
Screen, Display, Image, Rect, Point, Wmcontext, Pointer: import draw;
include "drawmux.m";
dmux : Drawmux;
include "wmsrv.m";
wmsrv: Wmsrv;
Window, Client: import wmsrv;
include "tk.m";
include "wmclient.m";
wmclient: Wmclient;
include "string.m";
str: String;
include "dialog.m";
dialog: Dialog;
include "arg.m";
Wm: module {
init: fn(ctxt: ref Draw->Context, argv: list of string);
};
Dmwm: module {
init: fn(ctxt: ref Draw->Context, argv: list of string);
};
Background: con int 16r777777FF;
screen: ref Screen;
display: ref Display;
badmodule(p: string)
{
sys->fprint(sys->fildes(2), "wm: cannot load %s: %r\n", p);
raise "fail:bad module";
}
init(ctxt: ref Draw->Context, argv: list of string)
{
sys = load Sys Sys->PATH;
draw = load Draw Draw->PATH;
if(draw == nil)
badmodule(Draw->PATH);
str = load String String->PATH;
if(str == nil)
badmodule(String->PATH);
wmsrv = load Wmsrv Wmsrv->PATH;
if(wmsrv == nil)
badmodule(Wmsrv->PATH);
wmclient = load Wmclient Wmclient->PATH;
if(wmclient == nil)
badmodule(Wmclient->PATH);
wmclient->init();
dialog = load Dialog Dialog->PATH;
if (dialog == nil) badmodule(Dialog->PATH);
dialog->init();
sys->pctl(Sys->NEWPGRP|Sys->FORKNS, nil);
if (ctxt == nil)
ctxt = wmclient->makedrawcontext();
display = ctxt.display;
dmux = load Drawmux Drawmux->PATH;
if (dmux != nil) {
(err, disp) := dmux->init();
if (err != nil) {
dmux = nil;
sys->fprint(stderr(), "wm: cannot start drawmux: %s\n", err);
}
else
display = disp;
}
buts := Wmclient->Appl;
if(ctxt.wm == nil)
buts = Wmclient->Plain;
# win := wmclient->window(ctxt, "Wm", buts);
# wmclient->win.onscreen("place");
# wmclient->win.startinput("kbd" :: "ptr" :: nil);
# screen = makescreen(win.image);
(clientwm, join, req) := wmsrv->init();
clientctxt := ref Draw->Context(display, nil, nil);
sync := chan of string;
argv = tl argv;
if(argv == nil)
argv = "wm/toolbar" :: nil;
argv = "wm/wm" :: argv;
spawn command(clientctxt, argv, sync);
if((e := <-sync) != nil)
fatal("cannot run command: " + e);
dmuxrequest := chan of (string, ref Sys->FD);
if (dmux != nil)
spawn dmuxlistener(dmuxrequest);
for(;;) alt {
(name, fd) := <- dmuxrequest =>
spawn dmuxask(ctxt, name, fd);
}
}
makescreen(img: ref Image): ref Screen
{
screen = Screen.allocate(img, img.display.color(Background), 0);
img.draw(img.r, screen.fill, nil, screen.fill.r.min);
return screen;
}
kill(pid: int, note: string): int
{
fd := sys->open("/prog/"+string pid+"/ctl", Sys->OWRITE);
if(fd == nil || sys->fprint(fd, "%s", note) < 0)
return -1;
return 0;
}
fatal(s: string)
{
sys->fprint(sys->fildes(2), "wm: %s\n", s);
kill(sys->pctl(0, nil), "killgrp");
raise "fail:error";
}
command(ctxt: ref Draw->Context, args: list of string, sync: chan of string)
{
fds := list of {0, 1, 2};
pid := sys->pctl(sys->NEWFD, fds);
cmd := hd args;
file := cmd;
if(len file<4 || file[len file-4:]!=".dis")
file += ".dis";
c := load Wm file;
if(c == nil) {
err := sys->sprint("%r");
if(err != "permission denied" && err != "access permission denied" && file[0]!='/' && file[0:2]!="./"){
c = load Wm "/dis/"+file;
if(c == nil)
err = sys->sprint("%r");
}
if(c == nil){
sync <-= sys->sprint("%s: %s\n", cmd, err);
exit;
}
}
sync <-= nil;
c->init(ctxt, args);
}
dmuxlistener(newclient : chan of (string, ref Sys->FD))
{
(aok, c) := sys->announce("tcp!*!9998");
if (aok < 0) {
sys->print("cannot announce drawmux port: %r\n");
return;
}
buf := array [Sys->ATOMICIO] of byte;
for (;;) {
(ok, nc) := sys->listen(c);
if (ok < 0) {
sys->fprint(stderr(), "wm: dmux listen failed: %r\n");
return;
}
fd := sys->open(nc.dir+"/remote", Sys->OREAD);
name := "unknown";
if (fd == nil)
sys->fprint(stderr(), "wm: dmux cannot access remote address: %r\n");
else {
n := sys->read(fd, buf, len buf);
if (n > 0) {
name = string buf[0:n];
for (i := len name -1; i > 0; i--)
if (name[i] == '!')
break;
if (i != 0)
name = name[0:i];
}
}
fd = sys->open(nc.dir+"/data", Sys->ORDWR);
if (fd != nil)
newclient <-= (name, fd);
}
}
dmuxask(ctxt: ref Draw->Context, name : string, fd : ref Sys->FD)
{
msg := sys->sprint("Screen snoop request\nAddress: %s\n\nProceed?", name);
labs := "Ok" :: "No way!" :: nil;
if (1 || dialog->prompt(ctxt, nil, nil, "Snoop!", msg, 1, labs) == 0)
dmux->newviewer(fd);
}
stderr(): ref Sys->FD
{
return sys->fildes(2);
}
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