1 (* Copyright (C) 2004-2005, HELM Team.
3 * This file is part of HELM, an Hypertextual, Electronic
4 * Library of Mathematics, developed at the Computer Science
5 * Department, University of Bologna, Italy.
7 * HELM is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version 2
10 * of the License, or (at your option) any later version.
12 * HELM is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with HELM; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
22 * For details, see the HELM World-Wide-Web page,
23 * http://cs.unibo.it/helm/.
31 let rec aux = function
42 (** inherit from this class if you want to access current script *)
43 class scriptAccessor =
45 method private script = MatitaScript.instance ()
48 class clickableMathView obj =
49 let href = Gdome.domString "href" in
50 let xref = Gdome.domString "xref" in
52 inherit GMathViewAux.multi_selection_math_view obj
54 val mutable href_callback: (string -> unit) option = None
55 method set_href_callback f = href_callback <- f
58 ignore (self#connect#selection_changed self#choose_selection);
59 ignore (self#connect#click (fun (gdome_elt, _, _, _) ->
61 | Some elt (* element is an hyperlink, use href_callback on it *)
62 when elt#hasAttributeNS ~namespaceURI:Misc.xlink_ns ~localName:href ->
63 (match href_callback with
67 elt#getAttributeNS ~namespaceURI:Misc.xlink_ns ~localName:href
70 | Some elt -> ignore (self#action_toggle elt)
72 method private choose_selection gdome_elt =
74 if elt#hasAttributeNS ~namespaceURI:Misc.helm_ns ~localName:xref then
75 self#set_selection (Some elt)
78 (match elt#get_parentNode with
79 | None -> assert false
80 | Some p -> aux (new Gdome.element_of_node p))
81 with GdomeInit.DOMCastException _ -> ()
82 (* debug_print "trying to select above the document root" *)
86 | None -> self#set_selection None
89 let clickableMathView ?hadjustment ?vadjustment ?font_size ?log_verbosity =
90 GtkBase.Widget.size_params
91 ~cont:(OgtkMathViewProps.pack_return (fun p ->
92 OgtkMathViewProps.set_params
93 (new clickableMathView (GtkMathViewProps.MathView_GMetaDOM.create p))
94 ~font_size:None ~log_verbosity:None))
97 class sequentViewer obj =
100 inherit clickableMathView obj
102 val mutable current_infos = None
104 method get_selected_terms =
105 let selections = self#get_selections in
109 ((node : Gdome.element)#getAttributeNS
110 ~namespaceURI:Misc.helm_ns
111 ~localName:(Gdome.domString "xref"))#to_string
113 if xpath = "" then assert false (* "ERROR: No xref found!!!" *)
115 match current_infos with
116 | Some (ids_to_terms,_,_) ->
117 (try Hashtbl.find ids_to_terms xpath with _ -> raise Exit)
118 | None -> assert false) (* "ERROR: No current term!!!" *)
121 method get_selected_hypotheses =
122 let selections = self#get_selections in
126 ((node : Gdome.element)#getAttributeNS
127 ~namespaceURI:Misc.helm_ns
128 ~localName:(Gdome.domString "xref"))#to_string
130 if xpath = "" then assert false (* "ERROR: No xref found!!!" *)
132 match current_infos with
133 | Some (_,_,ids_to_hypotheses) ->
134 (try Hashtbl.find ids_to_hypotheses xpath with _ -> raise Exit)
135 | None -> assert false) (* "ERROR: No current term!!!" *)
138 method load_sequent metasenv metano =
139 let sequent = CicUtil.lookup_meta metano metasenv in
140 let (mathml,(_,(ids_to_terms, ids_to_father_ids, ids_to_hypotheses,_))) =
141 ApplyTransformation.mml_of_cic_sequent metasenv sequent
143 current_infos <- Some (ids_to_terms, ids_to_father_ids, ids_to_hypotheses);
145 debug_print "load_sequent: dumping MathML to ./prova";
146 ignore (Misc.domImpl#saveDocumentToFile ~name:"./prova" ~doc:mathml ());
148 self#load_root ~root:mathml#get_documentElement
151 class sequentsViewer ~(notebook:GPack.notebook)
152 ~(sequentViewer:sequentViewer) ()
155 inherit scriptAccessor
157 val mutable pages = 0
158 val mutable switch_page_callback = None
159 val mutable page2goal = [] (* associative list: page no -> goal no *)
160 val mutable goal2page = [] (* the other way round *)
161 val mutable goal2win = [] (* associative list: goal no -> scrolled win *)
162 val mutable _metasenv = []
163 val mutable scrolledWin: GBin.scrolled_window option = None
164 (* scrolled window to which the sequentViewer is currently attached *)
166 method private tab_label metano =
167 (GMisc.label ~text:(sprintf "?%d" metano) ~show:true ())#coerce
170 (match scrolledWin with
172 (* removing page from the notebook will destroy all contained widget,
173 * we do not want the sequentViewer to be destroyed as well *)
174 w#remove sequentViewer#coerce;
177 for i = 1 to pages do notebook#remove_page 0 done;
183 self#script#setGoal ~-1;
184 (match switch_page_callback with
186 GtkSignal.disconnect notebook#as_widget id;
187 switch_page_callback <- None
190 method load_sequents (status: ProofEngineTypes.status) =
191 let ((_, metasenv, _, _), goal) = status in
192 let sequents_no = List.length metasenv in
193 _metasenv <- metasenv;
194 pages <- sequents_no;
195 self#script#setGoal goal;
198 GBin.scrolled_window ~hpolicy:`AUTOMATIC ~vpolicy:`AUTOMATIC
199 ~shadow_type:`IN ~show:true ()
202 scrolledWin <- Some w;
203 match sequentViewer#misc#parent with
204 | None -> w#add sequentViewer#coerce
205 | Some _ -> sequentViewer#misc#reparent w#coerce
207 goal2win <- (metano, reparent) :: goal2win;
212 (fun (metano, _, _) ->
213 page2goal <- (!page, metano) :: page2goal;
214 goal2page <- (metano, !page) :: goal2page;
216 notebook#append_page ~tab_label:(self#tab_label metano) (win metano))
218 switch_page_callback <-
219 Some (notebook#connect#switch_page ~callback:(fun page ->
222 List.assoc page page2goal
223 with Not_found -> assert false
225 self#script#setGoal goal;
226 self#render_page ~page ~goal))
228 method private render_page ~page ~goal =
229 sequentViewer#load_sequent _metasenv goal;
231 List.assoc goal goal2win ();
232 sequentViewer#set_selection None
233 with Not_found -> assert false
235 method goto_sequent goal =
238 List.assoc goal goal2page
239 with Not_found -> assert false
241 notebook#goto_page page;
242 self#render_page page goal
248 type 'widget constructor =
249 ?hadjustment:GData.adjustment ->
250 ?vadjustment:GData.adjustment ->
252 ?log_verbosity:int ->
255 ?packing:(GObj.widget -> unit) ->
260 let sequentViewer ?hadjustment ?vadjustment ?font_size ?log_verbosity =
261 GtkBase.Widget.size_params
262 ~cont:(OgtkMathViewProps.pack_return (fun p ->
263 OgtkMathViewProps.set_params
264 (new sequentViewer (GtkMathViewProps.MathView_GMetaDOM.create p))
265 ~font_size ~log_verbosity))
268 let blank_uri = BuildTimeConf.blank_uri
269 let current_proof_uri = BuildTimeConf.current_proof_uri
272 [ `Ast of DisambiguateTypes.term
273 | `Cic of Cic.term * Cic.metasenv
277 exception Browser_failure of string
279 let cicBrowsers = ref []
281 class type cicBrowser =
283 method load: MatitaTypes.mathViewer_entry -> unit
284 method loadList: string list -> MatitaTypes.mathViewer_entry-> unit
285 method loadInput: string -> unit
288 class cicBrowser_impl ~(history:MatitaTypes.mathViewer_entry MatitaMisc.history)
291 let term_RE = Pcre.regexp "^term:(.*)" in
292 let trailing_slash_RE = Pcre.regexp "/$" in
293 let gui = MatitaGui.instance () in
294 let win = gui#newBrowserWin () in
295 let toplevel = win#toplevel in
296 let mathView = sequentViewer ~packing:win#scrolledBrowser#add () in
298 ignore (MatitaGtkMisc.ask_confirmation ~gui:(MatitaGui.instance ())
299 ~title:"Cic browser" ~msg ~cancel:false ());
305 fail (sprintf "Uncaught exception:\n%s" (Printexc.to_string exn))
307 let handle_error' f = fun () -> handle_error f in (* used in callbacks *)
309 inherit scriptAccessor
312 win#browserForwardButton#misc#set_sensitive false;
313 win#browserBackButton#misc#set_sensitive false;
314 ignore (win#browserUri#connect#activate (handle_error' (fun () ->
315 self#loadInput win#browserUri#text)));
316 ignore (win#browserHomeButton#connect#clicked (handle_error' (fun () ->
317 self#_load (`About `Current_proof))));
318 ignore (win#browserRefreshButton#connect#clicked
319 (handle_error' self#refresh));
320 ignore (win#browserBackButton#connect#clicked (handle_error' self#back));
321 ignore (win#browserForwardButton#connect#clicked
322 (handle_error' self#forward));
323 ignore (win#toplevel#event#connect#delete (fun _ ->
324 let my_id = Oo.id self in
325 cicBrowsers := List.filter (fun b -> Oo.id b <> my_id) !cicBrowsers;
326 if !cicBrowsers = [] &&
327 Helm_registry.get "matita.mode" = "cicbrowser"
331 ignore(win#whelpResultTreeview#connect#row_activated
332 ~callback:(fun _ _ ->
333 let old = win#browserUri#text in
334 self#loadInput (old ^ self#_getWhelpResultTreeviewSelection ())));
335 mathView#set_href_callback (Some (fun uri ->
336 handle_error (fun () -> self#_load (`Uri uri))));
337 self#_load (`About `Blank);
340 val mutable current_entry = `About `Blank
341 val mutable current_infos = None
342 val mutable current_mathml = None
344 val model = new MatitaGtkMisc.stringListModel win#whelpResultTreeview
346 method private _getWhelpResultTreeviewSelection () =
347 match model#easy_selection () with
351 (** history RATIONALE
353 * all operations about history are done using _historyFoo
355 * only toplevel function like load loadList loadInput can call
359 method private _historyAdd item =
361 win#browserBackButton#misc#set_sensitive true;
362 win#browserForwardButton#misc#set_sensitive false
364 method private _historyPrev () =
365 let item = history#previous in
366 if history#is_begin then win#browserBackButton#misc#set_sensitive false;
367 win#browserForwardButton#misc#set_sensitive true;
370 method private _historyNext () =
371 let item = history#next in
372 if history#is_end then win#browserForwardButton#misc#set_sensitive false;
373 win#browserBackButton#misc#set_sensitive true;
376 (** notebook RATIONALE
378 * Use only these functions to switch between the tabs
380 method private _showList = win#mathOrListNotebook#goto_page 1
381 method private _showMath = win#mathOrListNotebook#goto_page 0
385 method private back () =
387 self#_load (self#_historyPrev ())
388 with MatitaMisc.History_failure -> ()
390 method private forward () =
392 self#_load (self#_historyNext ())
393 with MatitaMisc.History_failure -> ()
395 (* loads a uri which can be a cic uri or an about:* uri
396 * @param uri string *)
397 method private _load entry =
399 if entry <> current_entry || entry = `About `Current_proof then begin
401 | `About `Current_proof -> self#home ()
402 | `About `Blank -> self#blank ()
403 | `About `Us -> () (* TODO implement easter egg here :-] *)
404 | `Check term -> self#_loadCheck term
405 | `Cic (term, metasenv) -> self#_loadTermCic term metasenv
406 | `Dir dir -> self#_loadDir dir
407 | `Uri uri -> self#_loadUriManagerUri (UriManager.uri_of_string uri)
408 | `Whelp (query, results) -> self#loadList results entry);
412 | UriManager.IllFormedUri uri -> fail (sprintf "invalid uri: %s" uri)
413 | CicEnvironment.Object_not_found uri ->
414 fail (sprintf "object not found: %s" (UriManager.string_of_uri uri))
415 | Browser_failure msg -> fail msg
418 method private blank () =
419 mathView#load_root (MatitaMisc.empty_mathml ())#get_documentElement;
422 method private _loadCheck term =
423 failwith "not implemented _loadCheck";
426 method private home () =
428 match self#script#status.proof_status with
429 | Proof (uri, metasenv, bo, ty) ->
430 let name = UriManager.name_of_uri (MatitaMisc.unopt uri) in
431 let obj = Cic.CurrentProof (name, metasenv, bo, ty, [], []) in
433 | Incomplete_proof ((uri, metasenv, bo, ty), _) ->
434 let name = UriManager.name_of_uri (MatitaMisc.unopt uri) in
435 let obj = Cic.CurrentProof (name, metasenv, bo, ty, [], []) in
439 (** loads a cic uri from the environment
440 * @param uri UriManager.uri *)
441 method private _loadUriManagerUri uri =
442 let uri = UriManager.strip_xpointer uri in
443 let (obj, _) = CicEnvironment.get_obj CicUniv.empty_ugraph uri in
446 method private _loadDir dir =
447 let content = Http_getter.ls dir in
448 let l = List.map (function
449 | Http_getter_types.Ls_section sec -> sec
450 | Http_getter_types.Ls_object obj -> obj.Http_getter_types.uri
455 method private setEntry entry =
456 win#browserUri#set_text (string_of_entry entry);
457 current_entry <- entry
459 method private _loadObj obj =
461 (* this must be _before_ loading the document, since
462 * if the widget is not mapped (hidden by the notebook)
463 * the document is not rendered *)
464 let use_diff = false in (* ZACK TODO use XmlDiff when re-rendering? *)
465 let (mathml, (_,(ids_to_terms, ids_to_father_ids, ids_to_conjectures,
466 ids_to_hypotheses,_,_))) =
467 ApplyTransformation.mml_of_cic_object obj
469 current_infos <- Some (ids_to_terms, ids_to_father_ids,
470 ids_to_conjectures, ids_to_hypotheses);
471 (match current_mathml with
472 | Some current_mathml when use_diff ->
474 XmlDiff.update_dom ~from:current_mathml mathml;
477 mathView#load_root ~root:mathml#get_documentElement;
478 current_mathml <- Some mathml);
480 method private _loadTermCic term metasenv =
481 let context = self#script#proofContext in
482 let dummyno = CicMkImplicit.new_meta metasenv [] in
483 let sequent = (dummyno, context, term) in
484 mathView#load_sequent (sequent :: metasenv) dummyno;
487 method private _loadList l =
488 model#list_store#clear ();
489 List.iter model#easy_append l;
492 (** { public methods } *)
495 handle_error (fun () -> self#_load uri);
498 method loadList l entry =
500 self#_historyAdd entry
502 method loadInput txt =
503 let add_terminating_slash s =
504 if s.[String.length s - 1] <> '/' then s^"/" else s
508 ignore(Http_getter.resolve txt); true
510 | Http_getter_types.Key_not_found _
511 | Http_getter_types.Unresolvable_URI _ -> false
517 (`Dir (add_terminating_slash txt))
520 self#_historyAdd entry
523 (** {2 methods used by constructor only} *)
526 method history = history
527 method currentEntry = current_entry
529 if current_entry = `About `Current_proof then
530 self#_load (`About `Current_proof)
534 let sequentsViewer ~(notebook:GPack.notebook)
535 ~(sequentViewer:sequentViewer) ()
537 new sequentsViewer ~notebook ~sequentViewer ()
540 let size = BuildTimeConf.browser_history_size in
541 let rec aux history =
542 let browser = new cicBrowser_impl ~history () in
543 let win = browser#win in
544 ignore (win#browserNewButton#connect#clicked (fun () ->
546 new MatitaMisc.browser_history ~memento:history#save size
549 let newBrowser = aux history in
550 newBrowser#load browser#currentEntry));
552 (* attempt (failed) to close windows on CTRL-W ... *)
553 MatitaGtkMisc.connect_key win#browserWinEventBox#event ~modifiers:[`CONTROL]
554 GdkKeysyms._W (fun () -> win#toplevel#destroy ());
556 cicBrowsers := browser :: !cicBrowsers;
557 (browser :> cicBrowser)
559 let history = new MatitaMisc.browser_history size (`About `Blank) in
562 let refresh_all_browsers () = List.iter (fun b -> b#refresh ()) !cicBrowsers
564 let default_sequentViewer () = sequentViewer ~show:true ()
565 let sequentViewer_instance = MatitaMisc.singleton default_sequentViewer
567 let default_sequentsViewer () =
568 let gui = MatitaGui.instance () in
569 let sequentViewer = sequentViewer_instance () in
570 sequentsViewer ~notebook:gui#main#sequentsNotebook ~sequentViewer ()
571 let sequentsViewer_instance = MatitaMisc.singleton default_sequentsViewer
575 method private get_browser reuse =
577 (match !cicBrowsers with
578 | [] -> cicBrowser ()
579 | b :: _ -> (b :> cicBrowser))
583 method show_entry ?(reuse=false) t = (self#get_browser reuse)#load t
585 method show_uri_list ?(reuse=false) ~entry l =
586 (self#get_browser reuse)#loadList l entry