18 var lockedbackup = "";
21 function text_of_html(h)
30 function unescape_html(s)
32 u = document.getElementById("unescape");
34 return text_of_html(u)
37 function filterByClass (elements,cname){
38 var itemsfound = new Array;
39 for(var i=0;i<elements.length;i++){
40 if(elements[i].className == cname){
41 itemsfound.push(elements[i]);
49 if (readCookie("session") == null) {
50 window.location = "/login.html"
53 titlebar = document.getElementById("titlebar");
54 matitaTitle = document.getElementById("matitaTitle");
55 apparea = document.getElementById("matitaapparea");
56 locked = document.getElementById("locked");
57 unlocked = document.getElementById("unlocked");
58 toparea = document.getElementById("toparea");
59 workarea = document.getElementById("workarea");
60 scriptcell = document.getElementById("scriptcell");
61 sidearea = document.getElementById("sidearea");
62 disambcell = document.getElementById("disambcell");
63 goalcell = document.getElementById("goalcell");
64 goals = document.getElementById("goals");
65 goalview = document.getElementById("goalview");
66 filename = document.getElementById("filename");
67 logarea = document.getElementById("logarea");
68 advanceButton = document.getElementById("advance");
69 retractButton = document.getElementById("retract");
70 cursorButton = document.getElementById("cursor");
71 bottomButton = document.getElementById("bottom");
72 dialogBox = document.getElementById("dialogBox");
73 uploadBox = document.getElementById("uploadBox");
74 dialogTitle = document.getElementById("dialogTitle");
75 dialogContent = document.getElementById("dialogContent");
77 matita = new Object();
78 matita.disambMode = matita.proofMode = false;
80 // hide sequent view at start
84 changeFile("test.ma");
86 // initialize keyboard events in the unlocked script
87 init_keyboard(unlocked);
94 function init_autotraces() {
95 $("#unlocked .autotactic").tooltip({
98 bodyHandler: function() {
99 return (trace_of($(this)[0]));
102 $("#locked .autotactic").tooltip({
105 bodyHandler: function() {
106 return (trace_of($(this)[0]));
111 function trace_of(node) {
112 return text_of_html(filterByClass(node.childNodes,"autotrace")[0]);
115 function changeFile(name) {
116 current_fname = name;
117 matitaTitle.innerHTML = "Matita - cic:/matita/" + name;
120 function init_keyboard(target)
122 if (target.addEventListener)
124 // target.addEventListener("keydown",keydown,false);
125 target.addEventListener("keypress",keypress,false);
126 // target.addEventListener("keyup",keyup,false);
127 // target.addEventListener("textInput",textinput,false);
129 else if (target.attachEvent)
131 // target.attachEvent("onkeydown", keydown);
132 target.attachEvent("onkeypress", keypress);
133 // target.attachEvent("onkeyup", keyup);
134 // target.attachEvent("ontextInput", textinput);
138 // target.onkeydown= keydown;
139 target.onkeypress= keypress;
140 // target.onkeyup= keyup;
141 // target.ontextinput= textinput; // probably doesn't work
148 if (n == null) return 'undefined';
150 if (n >= 32 && n < 127) s+= ' (' + String.fromCharCode(n) + ')';
151 while (s.length < 9) s+= ' ';
155 function string_of_key(n)
157 if (n == null) return 'undefined';
158 return String.fromCharCode(n);
161 function pressmesg(w,e)
163 debug(w + ' keyCode=' + keyval(e.keyCode) +
164 ' which=' + keyval(e.which) +
165 ' charCode=' + keyval(e.charCode) +
166 '\n shiftKey='+e.shiftKey
167 + ' ctrlKey='+e.ctrlKey
168 + ' altKey='+e.altKey
169 + ' metaKey='+e.metaKey);
172 function suppressdefault(e,flag)
176 if (e.preventDefault) e.preventDefault();
177 if (e.stopPropagation) e.stopPropagation();
182 function restoreSelection(r) {
185 if (window.getSelection)//non IE and there is already a selection
187 var s = window.getSelection();
188 if (s.rangeCount > 0)
193 if (document.createRange)//non IE and no selection
195 window.getSelection().addRange(r);
198 if (document.selection)//IE
205 function lookup_tex(texmacro)
207 texmacro = texmacro.substring(1);
208 return unescape(macro2utf8[texmacro]);
211 function strip_tags(tagname,classname)
213 var tags = unlocked.getElementsByTagName(tagname);
214 if (is_defined(classname)) {
215 tags = filterByClass(tags,classname);
217 for (i = 0; i < tags.length; i++) {
218 var children = tags[i].childNodes;
219 for (j = 0; j < children.length; j++) {
220 tags[i].parentNode.insertBefore(children[j],tags[i]);
223 for (var i = 0;tags.length > i;i++) {
224 tags[0].parentNode.removeChild(tags[0]);
228 function strip_interpr() {
230 alert("strip_interpr ended");
236 pressmesg('keypress',e);
237 var s = string_of_key(e.charCode);
238 strip_tags("span","error");
241 i = unlocked.innerHTML.html_to_matita().lastIndexOf('\\',j);
243 match = unlocked.innerHTML.html_to_matita().substring(i,j);
244 sym = unescape_html(lookup_tex(match));
245 if (sym != "undefined") {
246 if (window.getSelection) { // non IE
247 savedRange.setStart(savedsc,savedso - (j-i));
248 savedRange.deleteContents();
249 savedRange.insertNode(document.createTextNode(sym));
250 savedsc.parentNode.normalize();
251 if (savedRange.collapsed) { // Mozilla
252 savedRange.setEnd(savedsc,savedRange.endOffset + sym.length);
254 savedRange.collapse(false);
256 savedRange.moveStart(i-j);
257 savedRange.text(sym);
258 savedRange.collapse(false);
260 restoreSelection(savedRange);
261 return suppressdefault(e,true);
264 // restoreSelection(0);
265 return suppressdefault(e,false);
268 else return suppressdefault(e,false);
270 return suppressdefault(e,false);
278 // internet explorer (v.9) doesn't work with innerHTML
279 // but google chrome's innerText is, in a sense, "write only"
280 // what should we do?
281 // logarea.innerText = txt + "\n" + logarea.innerText;
282 logtxt = /* logtxt + "\n" +*/ txt;
286 logWin = window.open( "", "Matita Log",
287 "width=600,height=450,status,scrollbars,resizable,screenX=20,screenY=40,left=20,top=40");
288 logWin.document.write('<html><head><title>Matita Log' + '</title></head>');
289 logWin.document.write('<body><textarea style="width:100%;height:100%;">' +
290 logtxt + '</textarea></body></html>');
291 logWin.document.close();
297 debug("hd of '" + l + "' = '" + ar[0] + "'");
305 debug("tl of '" + l + "' = '" + tl + "'");
309 function listcons(x,l)
311 debug("cons '" + x + "' on '" + l + "'");
312 return (x + "#" + l);
320 function list_append(l1,l2)
328 function fold_left (f,acc,l)
331 { debug("'" + l + "' is fold end");
334 { debug("'" + l + "' is fold cons");
335 return(fold_left (f,f(acc,(listhd(l))),listtl(l))); }
338 function listiter (f,l)
341 { debug("'" + l + "' is nil");
346 debug("'" + l + "' is not nil");
348 listiter(f,listtl(l));
352 function listmap (f,l)
354 debug("listmap on " + l);
356 { debug("returning listnil");
360 { debug("cons f(hd) map(f,tl)");
361 return(f(listhd(l)) + "#" + listmap(f,listtl(l)));
365 var statements = listnil();
368 var metalist = listnil();
370 function pairmap (f,p)
372 debug("pairmap of '" + p + "'");
374 return (f(ar[0],ar[1]));
377 function tripletmap (f,p)
379 debug("tripletmap of '" + p + "'");
381 return (f(ar[0],ar[1],ar[2]));
387 return (pairmap (function (a,b) { return (a); }, p));
393 return (tripletmap (function (a,b,c) { return (a); }, p));
399 return (tripletmap (function (a,b,c) { return (b); }, p));
405 return (tripletmap (function (a,b,c) { return (c); }, p));
408 function populate_goalarray(menv)
410 debug("metasenv.length = " + menv.length);
411 if (menv.length == 0) {
417 goalarray = new Array();
418 metalist = listnil();
419 var tmp_goallist = "";
420 for (i = 0; i < menv.length; i++) {
421 metano = menv[i].getAttribute("number");
422 metaname = menv[i].childNodes[0].childNodes[0].data;
423 goal = menv[i].childNodes[1].childNodes[0].data;
424 debug ("found meta n. " + metano);
425 debug ("found goal\nBEGIN" + goal + "\nEND");
426 goalarray[metano] = goal;
427 tmp_goallist = " <A href=\"javascript:switch_goal(" + metano + ")\">" + metaname + "</A>" + tmp_goallist;
428 metalist = listcons(metano,metalist);
429 debug ("goalarray[\"" + metano + "\"] = " + goalarray[metano]);
431 goals.innerHTML = tmp_goallist;
432 debug("new metalist is '" + metalist + "'");
433 if (is_nil(metalist)) {
437 switch_goal(listhd(metalist));
442 function switch_goal(meta)
444 if (typeof meta == "undefined") {
445 goalview.innerHTML = "";
448 debug("switch_goal " + meta + "\n" + goalarray[meta]);
449 goalview.innerHTML = "<B>Goal ?" + meta + ":</B>\n\n" + goalarray[meta];
453 // the following is used to avoid escaping unicode, which results in
454 // the server being unable to unescape the string
455 String.prototype.sescape = function() {
461 result = result.replace(patt1,"%25");
462 result = result.replace(patt2,"%3D");
463 result = result.replace(patt3,"%26");
464 result = result.replace(patt4,"%2B");
468 String.prototype.html_to_matita = function()
470 var patt1 = /<br(\/|)>/gi;
473 var patt4 = /</gi;
474 var patt5 = />/gi;
475 var patt6 = / /gi;
477 result = result.replace(patt1,"\n");
478 result = result.replace(patt2,"\005");
479 result = result.replace(patt3,"\006");
480 result = result.replace(patt4,"<");
481 result = result.replace(patt5,">");
482 result = result.replace(patt6," ");
483 return (unescape(result));
486 String.prototype.matita_to_html = function()
490 var patt3 = /\005/gi;
491 var patt4 = /\006/gi;
493 result = result.replace(patt1,"<");
494 result = result.replace(patt2,">");
495 result = result.replace(patt3,"<");
496 result = result.replace(patt4,">");
497 return (unescape(result));
500 function is_defined(x)
502 return (typeof x != "undefined");
505 /* servicename: name of the service being called
506 * reqbody: text of the request
507 * processResponse: processes the server response
508 * (takes the response text in input, undefined in case of error)
510 function callServer(servicename,processResponse,reqbody)
514 if (window.XMLHttpRequest)
516 req = new XMLHttpRequest();
518 else if (window.ActiveXObject)
521 req = new ActiveXObject("Msxml2.XMLHTTP");
525 req = new ActiveXObject("Microsoft.XMLHTTP");
529 req.onreadystatechange = function()
537 stxt = req.statusText;
540 debug(req.responseText);
541 if (window.DOMParser) {
542 parser=new DOMParser();
543 xmlDoc=parser.parseFromString(req.responseText,"text/xml");
545 else // Internet Explorer
547 xmlDoc=new ActiveXObject("Microsoft.XMLDOM");
548 xmlDoc.async="false";
549 xmlDoc.loadXML(req.responseText);
551 processResponse(xmlDoc);
557 req.open("POST", servicename); // + escape(unlocked.innerHTML), true);
558 req.setRequestHeader("Content-type","application/x-www-form-urlencoded");
567 function advOneStep(xml) {
568 var parsed = xml.getElementsByTagName("parsed")[0];
569 var ambiguity = xml.getElementsByTagName("ambiguity")[0];
570 var disamberr = xml.getElementsByTagName("disamberror")[0];
571 if (is_defined(parsed)) {
572 // debug("advance: received response\nBEGIN\n" + req.responseText + "\nEND");
573 var len = parseInt(parsed.getAttribute("length"));
574 // len0 = unlocked.innerHTML.length;
575 var unescaped = unlocked.innerHTML.html_to_matita();
576 var parsedtxt = parsed.childNodes[0].wholeText;
577 //parsedtxt = unescaped.substr(0,len);
578 var unparsedtxt = unescaped.substr(len);
579 lockedbackup += parsedtxt;
580 locked.innerHTML = lockedbackup;
581 unlocked.innerHTML = unparsedtxt.matita_to_html();
582 // len1 = unlocked.innerHTML.length;
583 // len2 = len0 - len1;
584 var len2 = parsedtxt.length;
585 metasenv = xml.getElementsByTagName("meta");
586 statements = listcons(len2,statements);
587 unlocked.scrollIntoView(true);
590 else if (is_defined(ambiguity)) {
591 var start = parseInt(ambiguity.getAttribute("start"));
592 var stop = parseInt(ambiguity.getAttribute("stop"));
593 var choices = xml.getElementsByTagName("choice");
595 matita.ambiguityStart = start;
596 matita.ambiguityStop = stop;
597 matita.unlockedbackup = unlocked.innerHTML.html_to_matita();
598 matita.interpretations = [];
600 var unlockedtxt = unlocked.innerHTML.html_to_matita();
601 var pre = unlockedtxt.substring(0,start).matita_to_html();
602 var mid = unlockedtxt.substring(start,stop).matita_to_html();
603 var post = unlockedtxt.substring(stop).matita_to_html();
604 unlocked.innerHTML = pre +
605 "<span class=\"error\" title=\"disambiguation error\">" +
606 mid + "</span>" + post;
608 var title = "<H3>Ambiguous input</H3>";
609 disambcell.innerHTML = title;
610 for (i = 0;i < choices.length;i++) {
611 matita.interpretations[i] = new Object();
613 var href = choices[i].getAttribute("href");
614 var title = choices[i].getAttribute("title");
615 var desc = choices[i].childNodes[0].nodeValue;
617 matita.interpretations[i].href = href;
618 matita.interpretations[i].title = title;
619 matita.interpretations[i].desc = desc;
621 var choice = document.createElement("input");
622 choice.setAttribute("type","radio");
623 choice.setAttribute("name","interpr");
624 choice.setAttribute("href",href);
625 choice.setAttribute("title",title);
626 if (i == 0) choice.setAttribute("checked","");
628 disambcell.appendChild(choice);
629 disambcell.appendChild(document.createTextNode(desc));
630 disambcell.appendChild(document.createElement("br"));
633 var okbutton = document.createElement("input");
634 okbutton.setAttribute("type","button");
635 okbutton.setAttribute("value","OK");
636 okbutton.setAttribute("onclick","do_disambiguate()");
637 var cancelbutton = document.createElement("input");
638 cancelbutton.setAttribute("type","button");
639 cancelbutton.setAttribute("value","Cancel");
640 cancelbutton.setAttribute("onclick","cancel_disambiguate()");
642 disambcell.appendChild(okbutton);
643 disambcell.appendChild(cancelbutton);
645 matita.disambMode = true;
649 else if (is_defined(disamberr)) {
650 // must be fixed in a daemon: it makes sense to return a
651 // disambiguation error with no choices
652 if (disamberr.childNodes.length > 0) {
653 set_cps(disamberr.childNodes);
654 matita.unlockedbackup = unlocked.innerHTML.html_to_matita();
655 matita.disambMode = true;
661 var error = xml.getElementsByTagName("error")[0];
662 unlocked.innerHTML = error.childNodes[0].wholeText;
663 // debug(xml.childNodes[0].nodeValue);
669 function advanceForm1()
671 processor = function(xml) {
673 if (is_defined(xml)) {
675 populate_goalarray(metasenv);
678 debug("advance failed");
686 callServer("advance",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
690 // get or set <choicepoint>'s (in case of disamb error)
692 return matita.choicepoints
695 function set_cps(cps) {
696 matita.choicepoints = cps;
699 // get radio buttons for <choice>'s in a given cp
700 function get_choice_opts(i) {
702 var choices = get_cps()[i].childNodes;
703 for (var j = 0;j < choices.length;j++) {
704 var href = choices[j].getAttribute("href");
705 var title = choices[j].getAttribute("title");
707 if (is_defined(title) && title != null) {
709 } else if (is_defined(href) && href != null) {
715 res[j] = document.createElement("input");
716 res[j].setAttribute("type","radio");
717 res[j].setAttribute("name","choice");
718 res[j].setAttribute("choicepointno",i);
719 res[j].setAttribute("choiceno",j);
720 res[j].setAttribute("href",href);
721 res[j].setAttribute("title",title);
722 if (desc != null) res[j].setAttribute("desc",desc);
724 if (j == 0) res[j].setAttribute("checked","");
729 // get radio buttons for <failure>'s in a given choice
730 function get_failure_opts(i,j) {
732 var failures = get_cps()[i].childNodes[j].childNodes;
733 for (var k = 0;k < failures.length;k++) {
734 var start = failures[k].getAttribute("start");
735 var stop = failures[k].getAttribute("stop");
736 var title = failures[k].getAttribute("title");
738 res[k] = document.createElement("input");
739 res[k].setAttribute("type","radio");
740 res[k].setAttribute("name","failure");
741 res[k].setAttribute("choicepointno",i);
742 res[k].setAttribute("choiceno",j);
743 res[k].setAttribute("failureno",k);
744 res[k].setAttribute("start",start);
745 res[k].setAttribute("stop",stop);
746 res[k].setAttribute("title",title);
748 if (k == 0) res[k].setAttribute("checked","");
753 function next_cp(curcp) {
754 var cp = get_cps()[curcp];
755 var start = parseInt(cp.getAttribute("start"));
756 var stop = parseInt(cp.getAttribute("stop"));
758 matita.errorStart = start;
759 matita.errorStop = stop;
760 // matita.unlockedbackup = unlocked.innerHTML.html_to_matita();
762 var unlockedtxt = matita.unlockedbackup;
763 var pre = unlockedtxt.substring(0,start).matita_to_html();
764 var mid = unlockedtxt.substring(start,stop).matita_to_html();
765 var post = unlockedtxt.substring(stop).matita_to_html();
766 unlocked.innerHTML = pre +
767 "<span class=\"error\" title=\"error location\">" +
768 mid + "</span>" + post;
770 var title = "<H3>Error diagnostics</H3>";
771 disambcell.innerHTML = title;
772 var choices = get_choice_opts(curcp);
773 for (var i = 0;i < choices.length;i++) {
774 disambcell.appendChild(choices[i]);
775 var desc = choices[i].getAttribute("desc");
776 if (!is_defined(desc) || desc == null) {
777 desc = "Interpretation " + i;
779 disambcell.appendChild(document.createTextNode(desc));
780 disambcell.appendChild(document.createElement("br"));
783 // update index of the next choicepoint
784 new_curcp = (curcp + 1) % get_cps().length;
786 var okbutton = document.createElement("input");
787 okbutton.setAttribute("type","button");
788 okbutton.setAttribute("value","OK");
789 okbutton.setAttribute("onclick","show_failures()");
790 var cancelbutton = document.createElement("input");
791 cancelbutton.setAttribute("type","button");
792 cancelbutton.setAttribute("value","Close");
793 cancelbutton.setAttribute("onclick","cancel_disambiguate()");
794 var tryagainbutton = document.createElement("input");
795 tryagainbutton.setAttribute("type","button");
797 tryagainbutton.setAttribute("value","Try something else");
799 tryagainbutton.setAttribute("value","Restart");
801 tryagainbutton.setAttribute("onclick","next_cp(" + new_curcp + ")");
803 disambcell.appendChild(okbutton);
804 disambcell.appendChild(tryagainbutton);
805 disambcell.appendChild(cancelbutton);
809 //matita.disambMode = true;
814 function show_failures() {
816 var choice = document.getElementsByName("choice")[get_checked_index("choice")];
817 var cpno = parseInt(choice.getAttribute("choicepointno"));
818 var choiceno = parseInt(choice.getAttribute("choiceno"));
819 var choicedesc = choice.getAttribute("desc");
821 var title = "<H3>Error diagnostics</H3>";
823 if (is_defined(choicedesc) && choicedesc != null) {
824 subtitle = "<p>Errors at node " + cpno + " = " + choicedesc + "</p>";
826 subtitle = "<p>Global errors:</p>";
829 disambcell.innerHTML = title + subtitle;
830 var failures = get_failure_opts(cpno,choiceno);
831 for (var i = 0;i < failures.length;i++) {
832 disambcell.appendChild(failures[i]);
833 disambcell.appendChild(document.createTextNode(failures[i].getAttribute("title")));
834 disambcell.appendChild(document.createElement("br"));
837 var okbutton = document.createElement("input");
838 okbutton.setAttribute("type","button");
839 okbutton.setAttribute("value","Show error loc");
840 okbutton.setAttribute("onclick","show_err()");
841 var cancelbutton = document.createElement("input");
842 cancelbutton.setAttribute("type","button");
843 cancelbutton.setAttribute("value","Close");
844 cancelbutton.setAttribute("onclick","cancel_disambiguate()");
845 var backbutton = document.createElement("input");
846 backbutton.setAttribute("type","button");
847 backbutton.setAttribute("value","<< Back");
848 backbutton.setAttribute("onclick","next_cp(" + cpno + ")");
850 disambcell.appendChild(backbutton);
851 disambcell.appendChild(okbutton);
852 disambcell.appendChild(cancelbutton);
856 function show_err() {
857 var radios = document.getElementsByName("failure");
858 for (i = 0; i < radios.length; i++) {
859 if (radios[i].checked) {
860 var start = radios[i].getAttribute("start");
861 var stop = radios[i].getAttribute("stop");
862 var title = radios[i].getAttribute("title");
863 var unlockedtxt = matita.unlockedbackup;
864 var pre = unlockedtxt.substring(0,start).matita_to_html();
865 var mid = unlockedtxt.substring(start,stop).matita_to_html();
866 var post = unlockedtxt.substring(stop).matita_to_html();
867 unlocked.innerHTML = pre +
868 "<span class=\"error\" title=\"Disambiguation failure\">" +
869 mid + "</span>" + post;
875 function gotoBottom()
877 processor = function(xml) {
878 if (is_defined(xml)) {
879 // debug("goto bottom: received response\nBEGIN\n" + req.responseText + "\nEND");
880 var parsed = xml.getElementsByTagName("parsed");
881 var localized = xml.getElementsByTagName("localized")[0];
882 var ambiguity = xml.getElementsByTagName("ambiguity")[0];
883 var generic_err = xml.getElementsByTagName("error")[0];
884 var disamberr = xml.getElementsByTagName("disamberror")[0];
885 for (var i = 0;i < parsed.length; i++) {
886 var len = parsed[i].getAttribute("length");
887 // len0 = unlocked.innerHTML.length;
888 var unescaped = unlocked.innerHTML.html_to_matita();
889 // the browser may decide to split textnodes: use wholeText!
890 var parsedtxt = parsed[i].childNodes[0].wholeText;
891 //parsedtxt = unescaped.substr(0,len);
892 var unparsedtxt = unescaped.substr(len);
893 lockedbackup += parsedtxt;
894 locked.innerHTML = lockedbackup; //.matita_to_html();
895 unlocked.innerHTML = unparsedtxt.matita_to_html();
896 // len1 = unlocked.innerHTML.length;
897 var len2 = parsedtxt.length;
898 statements = listcons(len2,statements);
900 unlocked.scrollIntoView(true);
901 metasenv = xml.getElementsByTagName("meta");
903 populate_goalarray(metasenv);
905 if (is_defined(ambiguity)) {
906 var start = parseInt(ambiguity.getAttribute("start"));
907 var stop = parseInt(ambiguity.getAttribute("stop"));
908 var choices = xml.getElementsByTagName("choice");
910 matita.ambiguityStart = start;
911 matita.ambiguityStop = stop;
912 matita.unlockedbackup = unlocked.innerHTML.html_to_matita();
913 matita.interpretations = [];
915 var unlockedtxt = unlocked.innerHTML.html_to_matita();
916 var pre = unlockedtxt.substring(0,start).matita_to_html();
917 var mid = unlockedtxt.substring(start,stop).matita_to_html();
918 var post = unlockedtxt.substring(stop).matita_to_html();
919 unlocked.innerHTML = pre +
920 "<span class=\"error\" title=\"disambiguation error\">" +
921 mid + "</span>" + post;
923 var title = "<H3>Ambiguous input</H3>";
924 disambcell.innerHTML = title;
925 for (i = 0;i < choices.length;i++) {
926 matita.interpretations[i] = new Object();
928 var href = choices[i].getAttribute("href");
929 var title = choices[i].getAttribute("title");
930 var desc = choices[i].childNodes[0].nodeValue;
932 matita.interpretations[i].href = href;
933 matita.interpretations[i].title = title;
934 matita.interpretations[i].desc = desc;
936 var choice = document.createElement("input");
937 choice.setAttribute("type","radio");
938 choice.setAttribute("name","interpr");
939 choice.setAttribute("href",href);
940 choice.setAttribute("title",title);
941 if (i == 0) choice.setAttribute("checked","");
943 disambcell.appendChild(choice);
944 disambcell.appendChild(document.createTextNode(desc));
945 disambcell.appendChild(document.createElement("br"));
948 var okbutton = document.createElement("input");
949 okbutton.setAttribute("type","button");
950 okbutton.setAttribute("value","OK");
951 okbutton.setAttribute("onclick","do_disambiguate()");
952 var cancelbutton = document.createElement("input");
953 cancelbutton.setAttribute("type","button");
954 cancelbutton.setAttribute("value","Cancel");
955 cancelbutton.setAttribute("onclick","cancel_disambiguate()");
957 disambcell.appendChild(okbutton);
958 disambcell.appendChild(cancelbutton);
960 matita.disambMode = true;
963 else if (is_defined(disamberr)) {
964 // must be fixed in a daemon: it makes sense to return a
965 // disambiguation error with no choices
966 if (disamberr.childNodes.length > 0) {
967 set_cps(disamberr.childNodes);
968 matita.unlockedbackup = unlocked.innerHTML.html_to_matita();
969 matita.disambMode = true;
974 else if (is_defined(localized)) {
975 unlocked.innerHTML = localized.childNodes[0].wholeText;
977 else if (is_defined(generic_err)) {
978 debug("Unmanaged error:\n" ^ generic_err.childNodes[0].wholeText);
981 debug("goto bottom failed");
986 callServer("bottom",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
992 processor = function(xml) {
993 if (is_defined(xml)) {
994 if (xml.childNodes[0].textContent != "ok") {
995 debug("goto top failed");
998 statements = listnil();
1000 lockedlen = locked.innerHTML.length - statementlen;
1001 statement = locked.innerHTML.substr(lockedlen, statementlen);
1002 locked.innerHTML = locked.innerHTML.substr(0,lockedlen);
1003 unlocked.innerHTML = statement + unlocked.innerHTML;
1005 unlocked.innerHTML = lockedbackup + unlocked.innerHTML;
1007 locked.innerHTML = lockedbackup;
1010 unlocked.scrollIntoView(true);
1012 debug("goto top failed");
1017 callServer("top",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
1021 function gotoPos(offset)
1023 if (!is_defined(offset)) {
1024 offset = getCursorPos();
1026 processor = function(xml) {
1027 if (is_defined(xml)) {
1030 parsed = xml.getElementsByTagName("parsed")[0];
1031 len = parseInt(parsed.getAttribute("length"));
1032 // len0 = unlocked.innerHTML.length;
1033 unescaped = unlocked.innerHTML.html_to_matita();
1034 parsedtxt = parsed.childNodes[0].wholeText;
1035 //parsedtxt = unescaped.substr(0,len);
1036 unparsedtxt = unescaped.substr(len);
1037 lockedbackup += parsedtxt;
1038 locked.innerHTML = lockedbackup; //.matita_to_html();
1039 unlocked.innerHTML = unparsedtxt.matita_to_html();
1040 // len1 = unlocked.innerHTML.length;
1041 len2 = parsedtxt.length;
1042 metasenv = xml.getElementsByTagName("meta");
1043 // populate_goalarray(metasenv);
1044 statements = listcons(len2,statements);
1045 unlocked.scrollIntoView(true);
1046 // la populate non andrebbe fatta a ogni passo
1048 var len = advOneStep(xml);
1049 if (offset <= len) {
1051 populate_goalarray(metasenv);
1054 gotoPos(offset - len);
1058 populate_goalarray(metasenv);
1063 unlocked.scrollIntoView(true);
1064 populate_goalarray(metasenv);
1069 callServer("advance",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
1074 processor = function(xml) {
1075 if (typeof xml != "undefined") {
1076 // debug("advance: received response\nBEGIN\n" + req.responseText + "\nEND");
1077 statementlen = parseInt(listhd(statements));
1078 statements = listtl(statements);
1080 lockedlen = locked.innerHTML.length - statementlen;
1081 statement = locked.innerHTML.substr(lockedlen, statementlen);
1082 locked.innerHTML = locked.innerHTML.substr(0,lockedlen);
1083 unlocked.innerHTML = statement + unlocked.innerHTML;
1085 lockedlen = lockedbackup.length - statementlen;
1086 statement = lockedbackup.substr(lockedlen, statementlen);
1087 lockedbackup = lockedbackup.substr(0,lockedlen);
1088 locked.innerHTML = lockedbackup;
1089 unlocked.innerHTML = statement + unlocked.innerHTML;
1090 metasenv = xml.getElementsByTagName("meta");
1092 populate_goalarray(metasenv);
1093 unlocked.scrollIntoView(true);
1095 debug("retract failed");
1100 callServer("retract",processor);
1105 processor = function(xml)
1107 if (is_defined(xml)) {
1109 locked.innerHTML = lockedbackup;
1110 unlocked.innerHTML = xml.documentElement.wholeText;
1112 debug("file open failed");
1115 callServer("open",processor,"file=" + escape(filename.value));
1118 function retrieveFile(thefile)
1120 processor = function(xml)
1122 if (is_defined(xml)) {
1123 changeFile(thefile);
1124 matita.disambMode = false;
1125 matita.proofMode = false;
1128 locked.innerHTML = lockedbackup;
1129 // code originally used in google chrome (problems with mozilla)
1130 // debug(xml.getElementsByTagName("file")[0].childNodes[0].nodeValue);
1131 // unlocked.innerHTML = xml.getElementsByTagName("file")[0].childNodes[0].nodeValue;
1132 debug(xml.childNodes[0].textContent);
1133 if (document.all) { // IE
1134 unlocked.innerHTML = xml.childNodes[0].text;
1136 unlocked.innerHTML = xml.childNodes[0].textContent;
1141 debug("file open failed");
1144 abortDialog("dialogBox");
1145 callServer("open",processor,"file=" + escape(thefile));
1148 function showLibrary(title,callback,reloadDialog)
1151 dialogBox.reload = reloadDialog;
1153 if (window.XMLHttpRequest)
1155 req = new XMLHttpRequest();
1157 else if (window.ActiveXObject)
1160 req = new ActiveXObject("Msxml2.XMLHTTP");
1164 req = new ActiveXObject("Microsoft.XMLHTTP");
1168 req.onreadystatechange = function()
1171 rs = req.readyState;
1176 stxt = req.statusText;
1179 debug(req.responseText);
1180 showDialog("<H2>" + title + "</H2>",req.responseText, callback);
1184 req.open("POST", "viewlib"); // + escape(unlocked.innerHTML), true);
1185 req.setRequestHeader("Content-type","application/x-www-form-urlencoded");
1190 function uploadDialog()
1192 uploadBox.style.display = "block";
1197 var file = document.getElementById("uploadFilename").files[0];
1199 // var filecontent = file.getAsText("UTF-8");
1200 // locked.innerHTML = lockedbackup;
1201 // unlocked.innerHTML = filecontent;
1202 // uploadBox.style.display = "none";
1205 var reader = new FileReader();
1206 reader.onerror = function (evt) {
1207 debug("file open failed");
1209 reader.onload = function (evt) {
1211 locked.innerHTML = lockedbackup;
1212 unlocked.innerHTML = "";
1213 unlocked.appendChild(document.createTextNode(evt.target.result));
1214 uploadBox.style.display = "none";
1216 try { reader.readAsText(file, "UTF-8"); }
1217 catch (err) { /* nothing to do */ };
1218 uploadBox.style.display = "none";
1222 function openDialog()
1224 callback = function (fname) { retrieveFile(fname); };
1225 showLibrary("Open file", callback, openDialog);
1228 function saveDialog()
1230 callback = function (fname) {
1231 abortDialog("dialogBox");
1233 (locked.innerHTML.html_to_matita()).sescape(),
1234 (unlocked.innerHTML.html_to_matita()).sescape(),
1237 showLibrary("Save file as", callback, saveDialog);
1240 function newDialog()
1242 callback = function (fname) {
1243 abortDialog("dialogBox");
1244 saveFile(fname,"","",false,newDialog,true);
1246 showLibrary("Create new file", callback, newDialog);
1250 function saveFile(fname,lockedtxt,unlockedtxt,force,reloadDialog,reloadFile)
1252 if (!is_defined(reloadFile)) { reloadFile = true };
1253 if (!is_defined(fname)) {
1254 fname = current_fname;
1255 lockedtxt = (locked.innerHTML.html_to_matita()).sescape();
1256 unlockedtxt = (unlocked.innerHTML.html_to_matita()).sescape();
1258 // when force is true, reloadDialog is not needed
1260 processor = function(xml) {
1261 if (is_defined(xml)) {
1262 if (xml.childNodes[0].textContent != "ok") {
1263 if (confirm("File already exists. All existing data will be lost.\nDo you want to proceed anyway?")) {
1264 saveFile(fname,lockedtxt,unlockedtxt,true,reloadDialog,reloadFile);
1270 debug("file saved!");
1271 if (reloadFile) { retrieveFile(fname); }
1274 debug("save file failed");
1278 if (is_defined(fname)) {
1280 callServer("save",processor,"file=" + escape(fname) +
1281 "&locked=" + lockedtxt +
1282 "&unlocked=" + unlockedtxt +
1285 else { debug("no file selected"); }
1288 function createDir() {
1289 abortDialog("dialogBox");
1290 dirname = prompt("New directory name:\ncic:/matita/","newdir");
1291 if (dirname != null) {
1292 processor = function(xml) {
1293 if (is_defined(xml)) {
1294 if (xml.childNodes[0].textContent != "ok") {
1295 alert("An error occurred :-(");
1298 alert("An error occurred :-(");
1303 callServer("save",processor,"file=" + escape(dirname) +
1304 "&locked=&unlocked=&force=false&dir=true");
1310 function commitAll()
1312 processor = function(xml) {
1313 if (is_defined(xml)) {
1314 debug(xml.getElementsByTagName("details")[0].textContent);
1315 alert("Commit executed: see details in the log.\n\n" +
1316 "NOTICE: this message does NOT imply (yet) that the commit was successful.");
1318 alert("Commit failed!\n(maybe you don't have permissionis to commit?)");
1323 callServer("commit",processor);
1326 function updateAll()
1328 processor = function(xml) {
1329 if (is_defined(xml)) {
1330 alert("Update executed.\n\n" +
1332 xml.getElementsByTagName("details")[0].textContent);
1334 alert("Update failed!\n(maybe you don't have permissions to update?)");
1339 callServer("update",processor);
1344 function hideSequent() {
1345 matita.proofMode = false;
1349 function showSequent() {
1350 matita.proofMode = true;
1354 function showDialog(title,content,callback) {
1355 dialogTitle.innerHTML = title;
1356 dialogContent.innerHTML = content;
1357 dialogBox.callback = callback;
1359 //Get the screen height and width
1360 var maskHeight = $(document).height();
1361 var maskWidth = $(window).width();
1363 //Set heigth and width to mask to fill up the whole screen
1364 $('#mask').css({'width':maskWidth,'height':maskHeight});
1367 $('#mask').fadeIn(100);
1368 $('#mask').fadeTo(200,0.8);
1370 //Get the window height and width
1371 var winH = $(window).height();
1372 var winW = $(window).width();
1374 //Set the popup window to center
1375 $('#dialogBox').css('top', winH/2-$('#dialogBox').height()/2);
1376 $('#dialogBox').css('left', winW/2-$('#dialogBox').width()/2);
1379 $('#dialogBox').fadeIn(200);
1381 dialogBox.style.display = "block";
1384 function abortDialog(dialog) {
1385 document.getElementById(dialog).style.display = "none";
1389 function removeElement(id) {
1390 var element = document.getElementById(id);
1391 element.parentNode.removeChild(element);
1397 function getCursorPos() {
1399 if (window.getSelection) {
1400 var selObj = window.getSelection();
1401 savedRange = selObj.getRangeAt(0);
1402 savedsc = savedRange.startContainer;
1403 savedso = savedRange.startOffset;
1404 //cursorPos = findNode(selObj.anchorNode.parentNode.childNodes, selObj.anchorNode) + selObj.anchorOffset;
1405 cursorPos = findNode(unlocked.childNodes, selObj.anchorNode,0) + selObj.anchorOffset;
1406 /* FIXME the following works wrong in Opera when the document is longer than 32767 chars */
1409 else if (document.selection) {
1410 savedRange = document.selection.createRange();
1411 var bookmark = savedRange.getBookmark();
1412 /* FIXME the following works wrong when the document is longer than 65535 chars */
1413 cursorPos = bookmark.charCodeAt(2) - 11; /* Undocumented function [3] */
1418 function findNode(list, node, acc) {
1419 for (var i = 0; i < list.length; i++) {
1420 if (list[i] == node) {
1421 // debug("success " + i);
1424 if (list[i].hasChildNodes()) {
1426 // debug("recursion on node " + i);
1427 return (findNode(list[i].childNodes,node,acc))
1429 catch (e) { /* debug("recursion failed"); */ }
1431 sandbox = document.getElementById("sandbox");
1432 dup = list[i].cloneNode(true);
1433 sandbox.appendChild(dup);
1434 // debug("fail " + i + ": " + sandbox.innerHTML);
1435 acc += sandbox.innerHTML.html_to_matita().length;
1436 sandbox.removeChild(dup);
1442 debug("cursor test: " + unlocked.innerHTML.substr(0,getCursorPos()));
1445 function get_checked_index(name) {
1446 var radios = document.getElementsByName(name);
1447 for (i = 0; i < radios.length; i++) {
1448 if (radios[i].checked) {
1455 function cancel_disambiguate() {
1456 matita.disambMode = false;
1458 // enable_toparea();
1459 // enable_editing();
1460 strip_tags("span","error");
1464 function do_disambiguate() {
1465 var i = get_checked_index("interpr");
1467 var pre = matita.unlockedbackup
1468 .substring(0,matita.ambiguityStart).matita_to_html();
1469 var mid = matita.unlockedbackup
1470 .substring(matita.ambiguityStart,matita.ambiguityStop)
1472 var post = matita.unlockedbackup
1473 .substring(matita.ambiguityStop).matita_to_html();
1475 var href = matita.interpretations[i].href;
1476 var title = matita.interpretations[i].title;
1478 if (is_defined(title)) {
1479 mid = "<A href=\"" + href + "\" title=\"" + title + "\">" + mid + "</A>";
1481 mid = "<A href=\"" + href + "\">" + mid + "</A>";
1484 unlocked.innerHTML = pre + mid + post;
1486 matita.disambMode = false;
1493 function do_showerror() {
1494 var i = get_checked_index("choice");
1496 var pre = matita.unlockedbackup
1497 .substring(0,matita.ambiguityStart).matita_to_html();
1498 var mid = matita.unlockedbackup
1499 .substring(matita.ambiguityStart,matita.ambiguityStop)
1501 var post = matita.unlockedbackup
1502 .substring(matita.ambiguityStop).matita_to_html();
1504 var href = matita.interpretations[i].href;
1505 var title = matita.interpretations[i].title;
1507 if (is_defined(title)) {
1508 mid = "<A href=\"" + href + "\" title=\"" + title + "\">" + mid + "</A>";
1510 mid = "<A href=\"" + href + "\">" + mid + "</A>";
1513 unlocked.innerHTML = pre + mid + post;
1518 function readCookie(name) {
1519 var nameEQ = name + "=";
1520 var ca = document.cookie.split(';');
1521 for(var i=0;i < ca.length;i++) {
1523 while (c.charAt(0)==' ') c = c.substring(1,c.length);
1524 if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
1529 function delete_cookie ( cookie_name )
1531 var cookie_date = new Date(); // current date & time
1532 cookie_date.setTime ( cookie_date.getTime() - 1 );
1533 document.cookie = cookie_name += "=; expires=" + cookie_date.toGMTString();
1536 function delete_session()
1538 delete_cookie("session");
1541 function disable_toparea() {
1542 var offset = $('#toparea').offset();
1543 $('#whitemask').css('top',offset.top);
1544 $('#whitemask').css('left',offset.left);
1545 $('#whitemask').css('width',$('#toparea').outerWidth() + "px");
1546 $('#whitemask').css('height',$('#toparea').outerHeight() + "px");
1547 $('#whitemask').fadeTo('fast',0.7);
1550 function enable_toparea() {
1551 $('#whitemask').hide();
1554 function disable_editing() {
1555 unlocked.contentEditable = false;
1558 function enable_editing() {
1559 unlocked.contentEditable = true;
1564 // advanceButton.disabled = true;
1565 // retractButton.disabled = true;
1566 // cursorButton.disabled = true;
1567 // bottomButton.disabled = true;
1574 // advanceButton.disabled = false;
1575 // retractButton.disabled = false;
1576 // cursorButton.disabled = false;
1577 // bottomButton.disabled = false;
1578 if (!matita.disambMode) {