ref: fb7dd4b3a868cb8987049c95bb32e6425a73c8b9
dir: /appl/grid/find.b/
implement Find;
#
# Copyright © 2003 Vita Nuova Holdings Limited. All rights reserved.
#
include "sys.m";
sys: Sys;
include "draw.m";
draw: Draw;
Rect: import draw;
include "tk.m";
tk: Tk;
include "tkclient.m";
tkclient: Tkclient;
include "arg.m";
include "sh.m";
include "registries.m";
registries: Registries;
Registry, Attributes, Service: import registries;
include "grid/announce.m";
announce: Announce;
Find: module {
init: fn(ctxt: ref Draw->Context, argv: list of string);
};
init(ctxt: ref Draw->Context, argv: list of string)
{
sys = load Sys Sys->PATH;
sys->pctl(sys->FORKNS | sys->NEWPGRP, nil);
draw = load Draw Draw->PATH;
arg := load Arg Arg->PATH;
if (arg == nil)
badmod(Arg->PATH);
if (draw == nil)
badmod(Draw->PATH);
tk = load Tk Tk->PATH;
if (tk == nil)
badmod(Tk->PATH);
tkclient = load Tkclient Tkclient->PATH;
if (tkclient == nil)
badmod(Tkclient->PATH);
tkclient->init();
registries = load Registries Registries->PATH;
if (registries == nil)
badmod(Registries->PATH);
registries->init();
command := "";
attrs := Attributes.new(nil);
arg->init(argv);
arg->setusage("find [-a attributes] action1 { cmd [args...] } .. actionN { cmd [args...] }");
title := "a resource";
while ((opt := arg->opt()) != 0) {
case opt {
't' =>
title = arg->earg();
'a' =>
attr := arg->earg();
val := arg->earg();
attrs.set(attr, val);
* =>
arg->usage();
}
}
argv = arg->argv();
if (argv == nil || len argv % 2)
arg->usage();
arg = nil;
cmds := array[len argv / 2] of (string, string);
for (i := 0; i < len cmds; i++) {
cmds[i] = (hd argv, hd tl argv);
argv = tl tl argv;
}
reg := Registry.connect(nil, nil, nil);
if (reg == nil)
error(ctxt, ((0,0),(0,0)), "Could not find registry");
(matches, err) := reg.find(attrs.attrs);
if (err != nil)
error(ctxt, ((0,0),(0,0)), "Registry error: "+err);
spawn tkwin(ctxt, matches, cmds, title);
}
mainscr := array[] of {
"frame .f",
"frame .f.flb",
"listbox .f.flb.lb1 -yscrollcommand {.f.flb.sb1 set} -selectmode single -bg white -selectbackground blue -font /fonts/charon/plain.normal.font",
"bind .f.flb.lb1 <Double-Button-1> {send butchan double %y}",
"scrollbar .f.flb.sb1 -command {.f.flb.lb1 yview}",
"pack .f.flb.sb1 -fill y -side left",
"pack .f.flb.lb1 -fill both -expand 1",
"frame .f.fb",
"pack .f.flb -fill both -expand 1 -side top",
"pack .f.fb",
"pack .f -fill both -expand 1",
};
errscr := array[] of {
"frame .f",
"frame .f.fl",
"label .f.fl.l1 -text {} -font /fonts/charon/plain.normal.font ",
"label .f.fl.l2 -text {Please try again later} -font /fonts/charon/plain.normal.font",
"pack .f.fl.l1 .f.fl.l2 -side top",
"button .f.b -text { Close } -command {send butchan exit} "+
"-font /fonts/charon/bold.normal.font",
"grid .f.fl -row 0 -column 0 -padx 10 -pady 5",
"grid .f.b -row 1 -column 0 -pady 5",
"pack .f",
};
tkwin(ctxt: ref Draw->Context, lsrv: list of ref Service, cmds: array of (string, string), title: string)
{
(top, titlectl) := tkclient->toplevel(ctxt, "", "Find "+title, tkclient->Appl);
butchan := chan of string;
tk->namechan(top, butchan, "butchan");
if (lsrv == nil) {
tkcmds(top, errscr);
tkcmd(top, ".f.fl.l1 configure -text {Could not find "+title+"}");
}
else {
tkcmds(top, mainscr);
for (tmp := lsrv; tmp != nil; tmp = tl tmp)
tkcmd(top, ".f.flb.lb1 insert end {"+(hd tmp).attrs.get("name")+"}");
for (i := 0; i < len cmds; i++) {
si := string i;
tkcmd(top, "button .f.fb.b"+si+" -font /fonts/charon/bold.normal.font "+
"-text {"+cmds[i].t0+"} -command {send butchan go "+si+"}");
tkcmd(top, "grid .f.fb.b"+si+" -row 0 -column "+si+" -padx 5 -pady 5");
}
tkcmd(top, ".f.flb.lb1 selection set 0");
tkcmd(top, "pack propagate . 0");
}
tkclient->onscreen(top, nil);
tkclient->startinput(top, "kbd"::"ptr"::nil);
for(;;) alt {
s := <-top.ctxt.kbd =>
tk->keyboard(top, s);
s := <-top.ctxt.ptr =>
tk->pointer(top, *s);
inp := <- butchan =>
(nil, lst) := sys->tokenize(inp, " \t\n");
case hd lst {
"exit" =>
return;
"go" =>
n := int hd tl lst;
id := tkcmd(top, ".f.flb.lb1 curselection");
if (id != nil)
connect(ctxt, lsrv, cmds[n].t1 :: nil, tk->rect(top, ".",0), int id);
"double" =>
y := hd tl lst;
id := int tkcmd(top, ".f.flb.lb1 nearest "+y);
connect(ctxt, lsrv, cmds[0].t1 :: nil, tk->rect(top, ".",0), id);
}
s := <-top.ctxt.ctl or
s = <-top.wreq or
s = <- titlectl =>
if (s == "exit")
exit;
else
tkclient->wmctl(top, s);
}
}
connect(ctxt: ref Draw->Context, lsrv: list of ref Service, argv: list of string, r: Rect, id: int)
{
for (tmp := lsrv; tmp != nil; tmp = tl tmp) {
if (id-- == 0) {
spawn mountit(ctxt, hd tmp, argv, r);
break;
}
}
}
tkcmd(top: ref Tk->Toplevel, cmd: string): string
{
e := tk->cmd(top, cmd);
if (e != "" && e[0] == '!') sys->print("tk error: '%s': %s\n",cmd,e);
return e;
}
tkcmds(top: ref Tk->Toplevel, cmds: array of string)
{
for (i := 0; i < len cmds; i++)
tkcmd(top, cmds[i]);
}
mountit(ctxt: ref Draw->Context, srv: ref Registries->Service, argv: list of string, r: Rect)
{
sys->pctl(Sys->FORKNS| Sys->NEWPGRP, nil);
attached := srv.attach(nil,nil);
if (attached != nil) {
if (sys->mount(attached.fd, nil, "/n/client", sys->MREPL, nil) != -1) {
sh := load Sh Sh->PATH;
if (sh == nil)
badmod(Sh->PATH);
sys->chdir("/n/client");
err := sh->run(ctxt, argv);
if (err != nil)
error(ctxt, r, "failed to run: "+err);
}
else
error(ctxt, r, sys->sprint("failed to mount: %r"));
}
else
error(ctxt, r, sys->sprint("could not connect"));
}
stderr(): ref Sys->FD
{
return sys->fildes(2);
}
badmod(path: string)
{
sys->fprint(stderr(), "Find: cannot load %s: %r\n", path);
exit;
}
errorwin := array[] of {
"frame .f",
"label .f.l -font /fonts/charon/plain.normal.font",
"button .f.b -text {Ok} -font /fonts/charon/bold.normal.font "+
"-command {send butchan ok}",
"pack .f.l .f.b -side top -padx 5 -pady 5",
"pack .f",
};
error(ctxt: ref Draw->Context, oldr: Draw->Rect, errstr: string)
{
(top, titlectl) := tkclient->toplevel(ctxt, "", "Error", tkclient->Appl);
butchan := chan of string;
tk->namechan(top, butchan, "butchan");
tkcmds(top, errorwin);
tkcmd(top, ".f.l configure -text {"+errstr+"}");
r := tk->rect(top, ".", 0);
newx := ((oldr.dx() - r.dx())/2) + oldr.min.x;
if (newx < 0)
newx = 0;
newy := ((oldr.dy() - r.dy())/2) + oldr.min.y;
if (newy < 0)
newy = 0;
tkcmd(top, ". configure -x "+string newx+" -y "+string newy);
tkclient->onscreen(top, "exact");
tkclient->startinput(top, "kbd"::"ptr"::nil);
for(;;) alt {
s := <-top.ctxt.kbd =>
tk->keyboard(top, s);
s := <-top.ctxt.ptr =>
tk->pointer(top, *s);
<- butchan =>
tkclient->wmctl(top, "exit");
s := <-top.ctxt.ctl or
s = <-top.wreq or
s = <- titlectl =>
tkclient->wmctl(top, s);
}
}