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(************************************************************************)
(* * The Coq Proof Assistant / The Coq Development Team *)
(* v * Copyright INRIA, CNRS and contributors *)
(* <O___,, * (see version control and CREDITS file for authors & dates) *)
(* \VV/ **************************************************************)
(* // * This file is distributed under the terms of the *)
(* * GNU Lesser General Public License Version 2.1 *)
(* * (see LICENSE file for the text of the license) *)
(************************************************************************)
open Preferences
(** A session is a script buffer + proof + messages,
interacting with a coqtop, and a few other elements around *)
class type ['a] page =
object
inherit GObj.widget
method update : 'a -> unit
method on_update : callback:('a -> unit) -> unit
method data : 'a
end
class type control =
object
method detach : unit -> unit
end
type errpage = (int * string) list page
type jobpage = string CString.Map.t page
type breakpoint = {
mark_id : string;
mutable prev_byte_offset : int; (* UTF-8 byte offset for Coq *)
(* prev_uni_offset may differ from mark#offset as the script is edited *)
mutable prev_uni_offset : int; (* unicode offset for GTK *)
}
type session = {
buffer : GText.buffer;
script : Wg_ScriptView.script_view;
proof : Wg_ProofView.proof_view; (* the proof context panel *)
messages : Wg_RoutedMessageViews.message_views_router;
segment : Wg_Segment.segment; (* color coded status bar near bottom of the screen *)
fileops : FileOps.ops;
coqops : CoqOps.ops;
coqtop : Coq.coqtop;
command : Wg_Command.command_window; (* aka the Query Pane *)
finder : Wg_Find.finder; (* Find / Replace panel *)
debugger : Wg_Debugger.debugger_view;
tab_label : GMisc.label;
errpage : errpage;
jobpage : jobpage;
sid : int;
basename : string;
mutable control : control;
mutable abs_file_name : string option;
mutable debug_stop_pt : (session * int * int) option;
mutable breakpoints : breakpoint list;
mutable last_db_goals : Pp.t
}
let next_sid = ref 0
let create_buffer () =
let buffer = GSourceView3.source_buffer
~tag_table:Tags.Script.table
~highlight_matching_brackets:true
?language:(lang_manager#language source_language#get)
?style_scheme:(style_manager#style_scheme source_style#get)
()
in
let _ = buffer#create_mark ~name:"start_of_input" buffer#start_iter in
let _ = buffer#create_mark
~left_gravity:false ~name:"stop_of_input" buffer#end_iter in
let _ = buffer#create_mark ~name:"prev_insert" buffer#start_iter in
let _ = buffer#place_cursor ~where:buffer#start_iter in
let _ = buffer#add_selection_clipboard Ideutils.cb in
buffer
let create_script coqtop source_buffer =
let script = Wg_ScriptView.script_view coqtop ~source_buffer
~show_line_numbers:true ~wrap_mode:`NONE ()
(* todo: line numbers don't appear *)
in
let _ = script#misc#set_name "ScriptWindow"
in
script
(** NB: Events during text edition:
- [begin_user_action]
- [insert_text] (or [delete_range] when deleting)
- [changed]
- [end_user_action]
When pasting a text containing tags (e.g. the sentence terminators),
there is actually many [insert_text] and [changed]. For instance,
for "a. b.":
- [begin_user_action]
- [insert_text] (for "a")
- [changed]
- [insert_text] (for ".")
- [changed]
- [apply_tag] (for the tag of ".")
- [insert_text] (for " b")
- [changed]
- [insert_text] (for ".")
- [changed]
- [apply_tag] (for the tag of ".")
- [end_user_action]
Since these copy-pasted tags may interact badly with the retag mechanism,
we now don't monitor the "changed" event, but rather the "begin_user_action"
and "end_user_action". We begin by setting a mark at the initial cursor
point. At the end, the zone between the mark and the cursor is to be
untagged and then retagged. *)
let misc () = CDebug.(get_flag misc)
type action_stack_entry = Mark of Gtk.text_mark | Begin
type action_stack = action_stack_entry list option
let call_coq_or_cancel_action coqtop coqops (buffer : GText.buffer) it =
let () = try buffer#delete_mark (`NAME "target") with GText.No_such_mark _ -> () in
let mark = buffer#create_mark ~name:"target" it in
let action = coqops#go_to_mark (`MARK mark) in
ignore @@ Coq.try_grab coqtop action (fun () -> ())
let init_user_action (stack : action_stack ref) = match !stack with
| None -> stack := Some []
| Some _ -> assert false
let close_user_action (stack : action_stack ref) = match !stack with
| None -> assert false
| Some marks ->
let () = stack := None in
marks
let handle_iter coqtop coqops (buffer : GText.buffer) it (stack : action_stack ref) =
match it with
| None -> ()
| Some it ->
match !stack with
| Some marks ->
(* We are inside an user action, deferring to its end *)
let ent = if it#offset > 0 then Mark (buffer#create_mark it) else Begin in
stack := Some (ent :: marks)
| None ->
(* Otherwise we move to the mark now *)
call_coq_or_cancel_action coqtop coqops buffer it
let set_buffer_handlers
(buffer : GText.buffer) script (coqops : CoqOps.ops) coqtop
=
let action_stack : action_stack ref = ref None in
let get_start () = buffer#get_iter_at_mark (`NAME "start_of_input") in
let get_stop () = buffer#get_iter_at_mark (`NAME "stop_of_input") in
let ensure_marks_exist () =
try ignore(buffer#get_mark (`NAME "stop_of_input"))
with GText.No_such_mark _ -> assert false in
let get_insert () = buffer#get_iter_at_mark `INSERT in
let update_prev it =
let prev = buffer#get_iter_at_mark (`NAME "prev_insert") in
if it#offset < prev#offset then
buffer#move_mark (`NAME "prev_insert") ~where:it
in
let debug_edit_zone () = if false (*!Minilib.debug*) then begin
buffer#remove_tag Tags.Script.edit_zone
~start:buffer#start_iter ~stop:buffer#end_iter;
buffer#apply_tag Tags.Script.edit_zone
~start:(get_start()) ~stop:(get_stop())
end in
let processed_sentence_just_before_error it =
let rec aux old it =
if it#is_start then None
else if it#has_tag Tags.Script.processed then Some old
else if it#has_tag Tags.Script.error_bg then aux it it#backward_char
else None in
aux it it#copy in
let insert_cb it s = if String.length s = 0 then () else begin
if misc () then Minilib.log ("insert_cb " ^ string_of_int it#offset);
let () = update_prev it in
let iter =
if it#has_tag Tags.Script.processed then Some it
else if it#has_tag Tags.Script.error_bg then
processed_sentence_just_before_error it
else None
in
handle_iter coqtop coqops buffer iter action_stack
end
in
let delete_cb ~start ~stop =
if misc () then Minilib.log (Printf.sprintf "delete_cb %d %d" start#offset stop#offset);
let min_iter, max_iter =
if start#compare stop < 0 then start, stop else stop, start in
let () = update_prev min_iter in
let rec aux iter =
if iter#equal max_iter then None
else if iter#has_tag Tags.Script.processed then
Some min_iter#backward_char
else if iter#has_tag Tags.Script.error_bg then
processed_sentence_just_before_error iter
else aux iter#forward_char
in
let iter = aux min_iter in
handle_iter coqtop coqops buffer iter action_stack
in
let begin_action_cb () =
let () = if misc () then Minilib.log "begin_action_cb" in
let () = init_user_action action_stack in
let where = get_insert () in
buffer#move_mark (`NAME "prev_insert") ~where
in
let end_action_cb () =
let () = if misc () then Minilib.log "end_action_cb" in
let marks = close_user_action action_stack in
let () = ensure_marks_exist () in
if CList.is_empty marks then
let start, stop = get_start (), get_stop () in
let () = List.iter (fun tag -> buffer#remove_tag tag ~start ~stop) Tags.Script.ephemere in
Sentence.tag_on_insert buffer
else
(* If coq was asked to backtrack, the cleanup must be done by the
backtrack_until function, since it may move the stop_of_input
to a point indicated by coq. *)
let iters = List.map (fun mark ->
match mark with
| Mark mark -> buffer#get_iter_at_mark (`MARK mark)
| Begin -> buffer#start_iter
) marks in
let iter = List.hd @@ List.sort (fun it1 it2 -> it1#compare it2) iters in
let () = List.iter (fun mark ->
try match mark with
| Mark mark -> buffer#delete_mark (`MARK mark)
| Begin -> let action = Coq.seq (coqops#backtrack_to_begin ())
(Coq.lift (fun () -> Sentence.tag_on_insert buffer)) in
ignore @@ Coq.try_grab coqtop action (fun () -> ())
with GText.No_such_mark _ -> ()) marks in
call_coq_or_cancel_action coqtop coqops buffer iter
in
let mark_deleted_cb m =
match GtkText.Mark.get_name m with
| Some "insert" -> ()
| Some s -> if misc () then Minilib.log (s^" deleted")
| None -> ()
in
let mark_set_cb it m =
debug_edit_zone ();
let ins = get_insert () in
let () = Ideutils.display_location ins in
match GtkText.Mark.get_name m with
| Some "insert" -> ()
| Some s -> if misc () then Minilib.log (s^" moved")
| None -> ()
in
let set_busy b =
let prop = `EDITABLE b in
let tags = [Tags.Script.processed] in
List.iter (fun tag -> tag#set_property prop) tags
in
(* Pluging callbacks *)
let () = Coq.setup_script_editable coqtop set_busy in
let _ = buffer#connect#insert_text ~callback:insert_cb in
let _ = buffer#connect#delete_range ~callback:delete_cb in
let _ = buffer#connect#begin_user_action ~callback:begin_action_cb in
let _ = buffer#connect#end_user_action ~callback:end_action_cb in
let _ = buffer#connect#after#mark_set ~callback:mark_set_cb in
let _ = buffer#connect#after#mark_deleted ~callback:mark_deleted_cb in
()
let find_int_col s l =
match List.assoc s l with `IntC c -> c | _ -> assert false
let find_string_col s l =
match List.assoc s l with `StringC c -> c | _ -> assert false
let make_table_widget ?sort cd cb =
let frame = GBin.scrolled_window ~hpolicy:`NEVER ~vpolicy:`AUTOMATIC () in
let columns, store =
let cols = new GTree.column_list in
let columns = List.map (function
| (`Int,n,_) -> n, `IntC (cols#add Gobject.Data.int)
| (`String,n,_) -> n, `StringC (cols#add Gobject.Data.string))
cd in
columns, GTree.list_store cols in
let data = GTree.view
~vadjustment:frame#vadjustment ~hadjustment:frame#hadjustment
~rules_hint:true ~headers_visible:false
~model:store ~packing:frame#add () in
let () = data#set_headers_visible true in
let () = data#set_headers_clickable true in
(* FIXME: handle this using CSS *)
(* let refresh clr = data#misc#modify_bg [`NORMAL, `NAME clr] in *)
(* let _ = background_color#connect#changed ~callback:refresh in *)
(* let _ = data#misc#connect#realize ~callback:(fun () -> refresh background_color#get) in *)
let mk_rend c = GTree.cell_renderer_text [], ["text",c] in
let cols =
List.map2 (fun (_,c) (_,n,v) ->
let c = match c with
| `IntC c -> GTree.view_column ~renderer:(mk_rend c) ()
| `StringC c -> GTree.view_column ~renderer:(mk_rend c) () in
c#set_title n;
c#set_visible v;
c#set_sizing `AUTOSIZE;
c)
columns cd in
let make_sorting i (_, c) =
let sort (store : GTree.model) it1 it2 = match c with
| `IntC c ->
compare (store#get ~row:it1 ~column:c) (store#get ~row:it2 ~column:c)
| `StringC c ->
compare (store#get ~row:it1 ~column:c) (store#get ~row:it2 ~column:c)
in
store#set_sort_func i sort
in
CList.iteri make_sorting columns;
CList.iteri (fun i c -> c#set_sort_column_id i) cols;
List.iter (fun c -> ignore(data#append_column c)) cols;
ignore(
data#connect#row_activated ~callback:(fun tp vc -> cb columns store tp vc)
);
let () = match sort with None -> () | Some (i, t) -> store#set_sort_column_id i t in
frame, (fun f -> f columns store)
let create_errpage (script : Wg_ScriptView.script_view) : errpage =
let table, access =
make_table_widget ~sort:(0, `ASCENDING)
[`Int,"Line",true; `String,"Error message",true]
(fun columns store tp vc ->
let row = store#get_iter tp in
let lno = store#get ~row ~column:(find_int_col "Line" columns) in
let where = script#buffer#get_iter (`LINE (lno-1)) in
script#buffer#place_cursor ~where;
script#misc#grab_focus ();
ignore (script#scroll_to_iter
~use_align:false ~yalign:0.75 ~within_margin:0.25 where)) in
let tip = GMisc.label ~text:"Double click to jump to error line" () in
let box = GPack.vbox ~homogeneous:false () in
let () = box#pack ~expand:true table#coerce in
let () = box#pack ~expand:false ~padding:2 tip#coerce in
let last_update = ref [] in
let callback = ref (fun _ -> ()) in
object (self)
inherit GObj.widget box#as_widget
method update errs =
if !last_update = errs then ()
else begin
last_update := errs;
access (fun _ store -> store#clear ());
!callback errs;
List.iter (fun (lno, msg) -> access (fun columns store ->
let line = store#append () in
store#set ~row:line ~column:(find_int_col "Line" columns) lno;
store#set ~row:line ~column:(find_string_col "Error message" columns) msg))
errs
end
method on_update ~callback:cb = callback := cb
method data = !last_update
end
let create_jobpage coqtop coqops : jobpage =
let table, access =
make_table_widget ~sort:(0, `ASCENDING)
[`String,"Worker",true; `String,"Job name",true]
(fun columns store tp vc ->
let row = store#get_iter tp in
let w = store#get ~row ~column:(find_string_col "Worker" columns) in
let info () = Minilib.log ("Coq busy, discarding query") in
ignore @@ Coq.try_grab coqtop (coqops#stop_worker w) info
) in
let tip = GMisc.label ~text:"Double click to interrupt worker" () in
let box = GPack.vbox ~homogeneous:false () in
let () = box#pack ~expand:true table#coerce in
let () = box#pack ~expand:false ~padding:2 tip#coerce in
let last_update = ref CString.Map.empty in
let callback = ref (fun _ -> ()) in
object (self)
inherit GObj.widget box#as_widget
method update jobs =
if !last_update = jobs then ()
else begin
last_update := jobs;
access (fun _ store -> store#clear ());
!callback jobs;
CString.Map.iter (fun id job -> access (fun columns store ->
let column = find_string_col "Worker" columns in
if job = "Dead" then
store#foreach (fun _ row ->
if store#get ~row ~column = id then store#remove row || true
else false)
else
let line = store#append () in
store#set ~row:line ~column id;
store#set ~row:line ~column:(find_string_col "Job name" columns) job))
jobs
end
method on_update ~callback:cb = callback := cb
method data = !last_update
end
let create_proof () =
let proof = Wg_ProofView.proof_view () in
let _ = proof#misc#set_can_focus true in
let _ = GtkBase.Widget.add_events proof#as_widget
[`ENTER_NOTIFY;`POINTER_MOTION]
in
proof
let dummy_control : control =
object
method detach () = ()
end
let to_abs_file_name f =
if Filename.is_relative f then Filename.concat (Unix.getcwd ()) f else f
let create file coqtop_args =
let (basename, abs_file_name) = match file with
| None -> ("*scratch*", None)
| Some f -> (Glib.Convert.filename_to_utf8 Filename.(remove_extension (basename f)),
Some (to_abs_file_name f))
in
let coqtop = Coq.spawn_coqtop basename coqtop_args in
let reset () = Coq.reset_coqtop coqtop in
let buffer = create_buffer () in
let script = create_script coqtop buffer in
let proof = create_proof () in
incr next_sid;
let sid = !next_sid in
let create_messages () =
let messages = Wg_MessageView.message_view sid in
let _ = messages#misc#set_can_focus true in
Wg_RoutedMessageViews.message_views ~route_0:messages
in
let messages = create_messages () in
let segment = new Wg_Segment.segment () in
let finder = new Wg_Find.finder basename (script :> GText.view) in
let debugger = Wg_Debugger.debugger (Printf.sprintf "Debugger (%s)" basename) sid in
let fops = new FileOps.fileops (buffer :> GText.buffer) file reset in
let _ = fops#update_stats in
let cops =
new CoqOps.coqops script proof messages segment coqtop (fun () -> fops#filename) in
let command = new Wg_Command.command_window basename coqtop cops messages sid in
let errpage = create_errpage script in
let jobpage = create_jobpage coqtop cops in
let _ = set_buffer_handlers (buffer :> GText.buffer) script cops coqtop in
let _ = Coq.set_reset_handler coqtop cops#handle_reset_initial in
let _ = Coq.init_coqtop coqtop cops#initialize in
let tab_label = GMisc.label ~text:basename () in
(* todo: ugly custom tooltips...*)
(*
tab_label#misc#set_size_request ~height:100 ~width:200 ();
tab_label#misc#modify_bg [`NORMAL, `NAME "#FF0000"];
(match abs_file_name with
| Some f ->
GtkBase.Widget.Tooltip.set_markup tab_label#as_widget
("<span background=\"yellow\" foreground=\"black\">" ^ f ^ "</span>");
let label2 = GMisc.label ~text:"hello?" () in
GtkBase.Tooltip.set_custom (label2#coerce : Gtk.tooltip) label
| None -> ());
*)
{
buffer = (buffer :> GText.buffer);
script=script;
proof=proof;
messages=messages;
segment=segment;
fileops=fops;
coqops=cops;
coqtop=coqtop;
command=command;
finder=finder;
debugger=debugger;
tab_label= tab_label;
errpage=errpage;
jobpage=jobpage;
sid=sid;
basename = basename;
control = dummy_control;
abs_file_name = abs_file_name;
debug_stop_pt = None;
breakpoints = [];
last_db_goals = Pp.mt ()
}
let kill (sn:session) =
(* To close the detached views of this script, we call manually
[destroy] on it, triggering some callbacks in [detach_view].
In a more modern lablgtk, rather use the page-removed signal ? *)
sn.coqops#destroy ();
sn.script#destroy ();
Coq.close_coqtop sn.coqtop
let window_size = ref (window_width#get, window_height#get)
let build_layout (sn:session) =
let debugger_paned = GPack.paned `VERTICAL () in
let debugger_box =
GPack.vbox ~packing:(debugger_paned#pack2 ~shrink:false ~resize:true) ()
in
let session_paned = GPack.paned `VERTICAL
~packing:(debugger_paned#pack1 ~shrink:false ~resize:true) () in
let session_box =
GPack.vbox ~packing:(session_paned#pack1 ~shrink:false ~resize:true) ()
in
(* Left part of the window. *)
let eval_paned = GPack.paned `HORIZONTAL ~border_width:5
~packing:(session_box#pack ~expand:true) () in
let script_frame = GBin.frame ~shadow_type:`IN
~packing:(eval_paned#pack1 ~shrink:false) () in
let script_scroll = GBin.scrolled_window
~vpolicy:`AUTOMATIC ~hpolicy:`AUTOMATIC ~packing:script_frame#add () in
(* Right part of the window *)
let state_paned = GPack.paned `VERTICAL
~packing:(eval_paned#pack2 ~shrink:true) () in
(* Proof buffer. *)
let title = Printf.sprintf "Proof (%s)" sn.tab_label#text in
let proof_detachable = Wg_Detachable.detachable ~title () in
let () = proof_detachable#button#misc#hide () in
let () = proof_detachable#frame#set_shadow_type `IN in
let () = state_paned#pack1 ~shrink:true proof_detachable#coerce in
let proof_scroll = GBin.scrolled_window
~vpolicy:`AUTOMATIC ~hpolicy:`AUTOMATIC ~packing:proof_detachable#pack () in
let callback _ = proof_detachable#show;
proof_scroll#coerce#misc#set_size_request ~width:0 ~height:0 ()
in
let () = proof_detachable#connect#attached ~callback in
let callback _ =
proof_scroll#coerce#misc#set_size_request ~width:500 ~height:400 ()
in
let () = proof_detachable#connect#detached ~callback in
(* Message buffer. *)
let message_frame = GPack.notebook ~packing:(state_paned#pack2 ~shrink:true) () in
let add_msg_page pos name text (w : GObj.widget) =
let detachable =
Wg_Detachable.detachable ~title:(text^" ("^name^")") () in
detachable#add w#coerce;
let label = GPack.hbox ~spacing:5 () in
let lbl = GMisc.label ~text ~packing:label#add () in
let but = GButton.button () in
but#add (GMisc.label ~markup:"<small>↗</small>" ())#coerce;
label#add but#coerce;
ignore(message_frame#insert_page ~pos
~tab_label:label#coerce detachable#coerce);
ignore(but#connect#clicked ~callback:(fun _ ->
message_frame#remove_page (message_frame#page_num detachable#coerce);
detachable#button#clicked ()));
detachable#connect#detached ~callback:(fun _ ->
if message_frame#all_children = [] then message_frame#misc#hide ();
w#misc#set_size_request ~width:500 ~height:400 ());
detachable#connect#attached ~callback:(fun _ ->
w#misc#set_size_request ~width:1 ~height:1 (); (* force resize *)
ignore(message_frame#insert_page ~pos
~tab_label:label#coerce detachable#coerce);
message_frame#misc#show ();
detachable#show);
detachable#button#misc#hide ();
detachable, lbl in
let session_tab = GPack.hbox ~homogeneous:false () in
let img = GMisc.image ~icon_size:`SMALL_TOOLBAR
~packing:session_tab#pack () in
let _ =
sn.buffer#connect#modified_changed
~callback:(fun () -> if sn.buffer#modified
then img#set_stock `SAVE
else img#set_stock `YES) in
(* There was an issue in the previous implementation for setting the
position of the handle. It was using the size_allocate event but
there is an issue with size_allocate. G. Melquiond analyzed that
at starting time, the size_allocate event is only issued in
Layout phase of the gtk loop so that it is actually processed
only in the next iteration of the event-update-layout-paint loop,
after the user does something and trigger an effective new event
(see #10578). So we preventively enforce an estimated position
for the handles to be used in the very first initializing
iteration of the loop *)
let () =
(* 14 is the estimated size for vertical borders *)
let estimated_vertical_handle_position = (fst !window_size - 14) / 2 in
(* 169 is the estimated size for menus, command line, horizontal border *)
let estimated_horizontal_handle_position = (snd !window_size - 169) / 2 in
if estimated_vertical_handle_position > 0 then
eval_paned#set_position estimated_vertical_handle_position;
if estimated_horizontal_handle_position > 0 then
state_paned#set_position estimated_horizontal_handle_position in
session_box#pack sn.finder#coerce;
debugger_box#add sn.debugger#coerce;
sn.debugger#hide ();
(sn.messages#route 0)#set_forward_show_debugger sn.debugger#show;
sn.debugger#set_forward_paned_pos (fun pos -> debugger_paned#set_position pos);
(* segment should not be in the debugger box *)
debugger_box#pack ~expand:false ~fill:false sn.segment#coerce;
debugger_paned#set_position 1000000;
sn.command#pack_in (session_paned#pack2 ~shrink:false ~resize:false);
script_scroll#add sn.script#coerce;
proof_scroll#add sn.proof#coerce;
let detach, _ = add_msg_page 0 sn.tab_label#text "Messages" sn.messages#default_route#coerce in
let _, label = add_msg_page 1 sn.tab_label#text "Errors" sn.errpage#coerce in
let _, _ = add_msg_page 2 sn.tab_label#text "Jobs" sn.jobpage#coerce in
(* When a message is received, focus on the message pane *)
let _ =
sn.messages#default_route#connect#pushed ~callback:(fun _ _ ->
let num = message_frame#page_num detach#coerce in
if 0 <= num then message_frame#goto_page num
)
in
(* When an error occurs, paint the error label in red *)
let txt = label#text in
let red s = "<span foreground=\"#FF0000\">" ^ s ^ "</span>" in
sn.errpage#on_update ~callback:(fun l ->
if l = [] then (label#set_use_markup false; label#set_text txt)
else (label#set_text (red txt);label#set_use_markup true));
session_tab#pack sn.tab_label#coerce;
img#set_stock `YES;
let control =
object
method detach () = proof_detachable#detach ()
end
in
let () = sn.control <- control in
(Some session_tab#coerce,None,debugger_paned#coerce)
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