X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matitaB%2Fmatita%2Fmatitaweb.js;h=6e6b905dba52173bdac9fc007b5ec872a413f4c5;hb=f5b9e1d5511a13ca5bb424c149781087aa0c8e31;hp=f0563928234812f20f980c467fc9b671784a1e6a;hpb=866590ce137ec8fbbaf83fa8ba572177c30dbdd8;p=helm.git

diff --git a/matitaB/matita/matitaweb.js b/matitaB/matita/matitaweb.js
index f05639282..6e6b905db 100644
--- a/matitaB/matita/matitaweb.js
+++ b/matitaB/matita/matitaweb.js
@@ -16,6 +16,7 @@ var dialogTitle;
 var dialogContent;
 var metasenv = "";
 var lockedbackup = "";
+var matita;
 
 function text_of_html(h)
 {
@@ -33,16 +34,32 @@ function unescape_html(s)
   return text_of_html(u)
 }
 
+function filterByClass (elements,cname){
+  var itemsfound = new Array;
+  for(var i=0;i<elements.length;i++){
+    if(elements[i].className == cname){
+      itemsfound.push(elements[i]);
+    }
+  }
+  return itemsfound;
+}
+
 function initialize()
 {
   if (readCookie("session") == null) {
     window.location = "/login.html"
   } else {
+    body = document.body;
+    titlebar = document.getElementById("titlebar");
     matitaTitle = document.getElementById("matitaTitle");
+    apparea = document.getElementById("matitaapparea");
     locked = document.getElementById("locked");
     unlocked = document.getElementById("unlocked");
+    toparea = document.getElementById("toparea");
     workarea = document.getElementById("workarea");
     scriptcell = document.getElementById("scriptcell");
+    sidearea = document.getElementById("sidearea");
+    disambcell = document.getElementById("disambcell");
     goalcell = document.getElementById("goalcell");
     goals = document.getElementById("goals");
     goalview = document.getElementById("goalview");
@@ -53,19 +70,48 @@ function initialize()
     cursorButton = document.getElementById("cursor");
     bottomButton = document.getElementById("bottom");
     dialogBox = document.getElementById("dialogBox");
+    uploadBox = document.getElementById("uploadBox");
     dialogTitle = document.getElementById("dialogTitle");
     dialogContent = document.getElementById("dialogContent");
 
-    changeFile("test.ma");
-  
+    matita = new Object();
+    matita.disambMode = matita.proofMode = false;
+
     // hide sequent view at start
-    hideSequent();
+    initializeLayout();
+    updateSide();
+
+    changeFile("test.ma");
 
     // initialize keyboard events in the unlocked script
     init_keyboard(unlocked);
+
+    init_autotraces();
+
   }
 }
 
+function init_autotraces() {
+    $("#unlocked .autotactic").tooltip({ 
+      delay: 0, 
+      showURL: false, 
+      bodyHandler: function() { 
+        return (trace_of($(this)[0])); 
+      }
+    });
+    $("#locked .autotactic").tooltip({ 
+      delay: 0, 
+      showURL: false, 
+      bodyHandler: function() { 
+        return (trace_of($(this)[0]));
+      }
+    });
+}
+
+function trace_of(node) {
+  return text_of_html(filterByClass(node.childNodes,"autotrace")[0]);
+}
+
 function changeFile(name) {
     current_fname = name;
     matitaTitle.innerHTML = "Matita - cic:/matita/" + name;
@@ -161,17 +207,40 @@ function lookup_tex(texmacro)
   texmacro = texmacro.substring(1);
   return unescape(macro2utf8[texmacro]);
 }
+
+function strip_tags(tagname,classname) 
+{
+    var tags = unlocked.getElementsByTagName(tagname);
+    if (is_defined(classname)) {
+	tags = filterByClass(tags,classname);
+    }
+    for (i = 0; i < tags.length; i++) {
+        var children = tags[i].childNodes;
+        for (j = 0; j < children.length; j++) {
+            tags[i].parentNode.insertBefore(children[j],tags[i]);
+	}
+    }
+    while (tags.length > 0) {
+      tags[0].parentNode.removeChild(tags[0]);
+    }
+}
+
+function strip_interpr() {
+	strip_tags("A");
+	alert("strip_interpr ended");
+}
  
 function keypress(e)
 {
    if (!e) e= event;
    pressmesg('keypress',e);
    var s = string_of_key(e.charCode);
+   strip_tags("span","error");
    if (s == " ") {
 	j = getCursorPos();
-	i = unlocked.innerHTML.lastIndexOf('\\',j);
+	i = unlocked.innerHTML.html_to_matita().lastIndexOf('\\',j);
        	if (i >= 0) {
-	  match = unlocked.innerHTML.substring(i,j);
+	  match = unlocked.innerHTML.html_to_matita().substring(i,j);
 	  sym = unescape_html(lookup_tex(match));
 	  if (sym != "undefined") {
              if (window.getSelection) { // non IE
@@ -210,7 +279,7 @@ function debug(txt)
 	// but google chrome's innerText is, in a sense, "write only"
 	// what should we do?
         // logarea.innerText = txt + "\n" + logarea.innerText;
-        logtxt = logtxt + "\n" + txt;
+        logtxt = /* logtxt + "\n" +*/ txt;
 }
 
 function showLog() {
@@ -248,6 +317,9 @@ function listnil()
 	return ("");
 }
 
+function list_append(l1,l2)
+{ return (l1 + l2) }
+
 function is_nil(l)
 {
 	return (l == "");
@@ -512,24 +584,101 @@ function advanceForm1()
 {
 	processor = function(xml) {
 		if (is_defined(xml)) {
+                        var parsed = xml.getElementsByTagName("parsed")[0];
+			var ambiguity = xml.getElementsByTagName("ambiguity")[0];
+			var disamberr = xml.getElementsByTagName("disamberror")[0];
+                        if (is_defined(parsed)) {
 			// debug("advance: received response\nBEGIN\n" + req.responseText + "\nEND");
-			parsed = xml.getElementsByTagName("parsed")[0];
-			len = parseInt(parsed.getAttribute("length"));
-	                // len0 = unlocked.innerHTML.length;
-			unescaped = unlocked.innerHTML.html_to_matita();
-			parsedtxt = parsed.childNodes[0].nodeValue;
-			//parsedtxt = unescaped.substr(0,len); 
-			unparsedtxt = unescaped.substr(len);
-			lockedbackup += parsedtxt;
-			locked.innerHTML = lockedbackup;
-			unlocked.innerHTML = unparsedtxt.matita_to_html();
-			// len1 = unlocked.innerHTML.length;
-			// len2 = len0 - len1;
-			len2 = parsedtxt.length;
-			metasenv = xml.getElementsByTagName("meta");
-	                populate_goalarray(metasenv);
-			statements = listcons(len2,statements);
-			unlocked.scrollIntoView(true);
+			    var len = parseInt(parsed.getAttribute("length"));
+	                    // len0 = unlocked.innerHTML.length;
+			    var unescaped = unlocked.innerHTML.html_to_matita();
+			    var parsedtxt = parsed.childNodes[0].wholeText;
+			    //parsedtxt = unescaped.substr(0,len); 
+			    var unparsedtxt = unescaped.substr(len);
+			    lockedbackup += parsedtxt;
+			    locked.innerHTML = lockedbackup;
+			    unlocked.innerHTML = unparsedtxt.matita_to_html();
+			    // len1 = unlocked.innerHTML.length;
+			    // len2 = len0 - len1;
+			    var len2 = parsedtxt.length;
+			    var metasenv = xml.getElementsByTagName("meta");
+	                    populate_goalarray(metasenv);
+			    init_autotraces();
+			    statements = listcons(len2,statements);
+			    unlocked.scrollIntoView(true);
+			}
+			else if (is_defined(ambiguity)) {
+			    var start = parseInt(ambiguity.getAttribute("start"));
+			    var stop = parseInt(ambiguity.getAttribute("stop"));
+			    var choices = xml.getElementsByTagName("choice");
+
+			    matita.ambiguityStart = start;
+			    matita.ambiguityStop = stop;
+			    matita.unlockedbackup = unlocked.innerHTML.html_to_matita();
+			    matita.interpretations = [];
+			
+			    var unlockedtxt = unlocked.innerHTML.html_to_matita();
+			    var pre = unlockedtxt.substring(0,start).matita_to_html();
+			    var mid = unlockedtxt.substring(start,stop).matita_to_html();
+			    var post = unlockedtxt.substring(stop).matita_to_html();
+			    unlocked.innerHTML = pre + 
+				    "<span class=\"error\" title=\"disambiguation error\">" +
+				    mid + "</span>" + post;
+
+			    var title = "<H3>Ambiguous input</H3>";
+			    disambcell.innerHTML = title;
+			    for (i = 0;i < choices.length;i++) {
+				matita.interpretations[i] = new Object();
+
+				var href = choices[i].getAttribute("href");
+				var title = choices[i].getAttribute("title");
+				var desc = choices[i].childNodes[0].nodeValue;
+
+				matita.interpretations[i].href = href;
+				matita.interpretations[i].title = title;
+				matita.interpretations[i].desc = desc;
+				
+				var choice = document.createElement("input");
+				choice.setAttribute("type","radio");
+				choice.setAttribute("name","interpr");
+				choice.setAttribute("href",href);
+				choice.setAttribute("title",title);
+				if (i == 0) choice.setAttribute("checked","");
+				
+				disambcell.appendChild(choice);
+				disambcell.appendChild(document.createTextNode(desc));
+				disambcell.appendChild(document.createElement("br"));
+			    }
+
+			    var okbutton = document.createElement("input");
+			    okbutton.setAttribute("type","button");
+			    okbutton.setAttribute("value","OK");
+			    okbutton.setAttribute("onclick","do_disambiguate()");
+			    var cancelbutton = document.createElement("input");
+			    cancelbutton.setAttribute("type","button");
+			    cancelbutton.setAttribute("value","Cancel");
+			    cancelbutton.setAttribute("onclick","cancel_disambiguate()");
+
+			    disambcell.appendChild(okbutton);
+			    disambcell.appendChild(cancelbutton);
+
+			    disable_toparea();
+
+			    matita.disambMode = true;
+			    updateSide();
+			}
+			else if (is_defined(disamberr)) {
+                            set_cps(disamberr.childNodes);
+                            matita.unlockedbackup = unlocked.innerHTML.html_to_matita();
+                            matita.disambMode = true;
+                            disable_toparea();
+                            next_cp(0);
+			}
+		        else {
+                            var error = xml.getElementsByTagName("error")[0]; 
+			    unlocked.innerHTML = error.childNodes[0].wholeText;
+			    // debug(xml.childNodes[0].nodeValue);
+			}
 		} else {
 			debug("advance failed");
 		}
@@ -540,31 +689,276 @@ function advanceForm1()
   
 }
 
+// get or set <choicepoint>'s (in case of disamb error)
+function get_cps() {
+	return matita.choicepoints
+}
+
+function set_cps(cps) {
+	matita.choicepoints = cps;
+}
+
+// get radio buttons for <choice>'s in a given cp
+function get_choice_opts(i) {
+   var res = [];
+   var choices = get_cps()[i].childNodes;
+   for (var j = 0;j < choices.length;j++) {
+      var href = choices[j].getAttribute("href");
+      var title = choices[j].getAttribute("title");
+      var desc;
+      if (is_defined(title)) {
+  	   desc = title;
+      } else if (is_defined(href)) {
+  	   desc = href;
+      } else {
+	   desc = "Preliminary error";
+      }
+  
+      res[j] = document.createElement("input");
+      res[j].setAttribute("type","radio");
+      res[j].setAttribute("name","choice");
+      res[j].setAttribute("choicepointno",i);
+      res[j].setAttribute("choiceno",j);
+      res[j].setAttribute("href",href);
+      res[j].setAttribute("title",title);
+      res[j].setAttribute("desc",desc);
+      
+      if (j == 0) res[j].setAttribute("checked","");
+  }
+  return res;
+}
+
+// get radio buttons for <failure>'s in a given choice
+function get_failure_opts(i,j) {
+   var res = [];
+   var failures = get_cps()[i].childNodes[j].childNodes;
+   for (var k = 0;k < failures.length;k++) {
+      var start = failures[k].getAttribute("start");
+      var stop = failures[k].getAttribute("stop");
+      var title = failures[k].getAttribute("title");
+  
+      res[k] = document.createElement("input");
+      res[k].setAttribute("type","radio");
+      res[k].setAttribute("name","failure");
+      res[k].setAttribute("choicepointno",i);
+      res[k].setAttribute("choiceno",j);
+      res[k].setAttribute("failureno",k);
+      res[k].setAttribute("start",start);
+      res[k].setAttribute("stop",stop);
+      res[k].setAttribute("title",title);
+      
+      if (k == 0) res[k].setAttribute("checked","");
+  }
+  return res;
+}
+
+function next_cp(curcp) {
+	var cp = get_cps()[curcp];
+	var start = parseInt(cp.getAttribute("start"));
+	var stop = parseInt(cp.getAttribute("stop"));
+
+	matita.errorStart = start;
+	matita.errorStop = stop;
+	// matita.unlockedbackup = unlocked.innerHTML.html_to_matita();
+	
+	var unlockedtxt = matita.unlockedbackup;
+	var pre = unlockedtxt.substring(0,start).matita_to_html();
+	var mid = unlockedtxt.substring(start,stop).matita_to_html();
+	var post = unlockedtxt.substring(stop).matita_to_html();
+	unlocked.innerHTML = pre + 
+	        "<span class=\"error\" title=\"disambiguation failed\">" +
+	        mid + "</span>" + post;
+
+	var title = "<H3>Disambiguation failed</H3>";
+	disambcell.innerHTML = title;
+	var choices = get_choice_opts(curcp);
+	for (var i = 0;i < choices.length;i++) {
+	    disambcell.appendChild(choices[i]);
+	    disambcell.appendChild(document.createTextNode(choices[i].getAttribute("desc")));
+	    disambcell.appendChild(document.createElement("br"));
+	}
+	
+	// update index of the next choicepoint
+	new_curcp = (curcp + 1) % get_cps().length;
+
+	var okbutton = document.createElement("input");
+	okbutton.setAttribute("type","button");
+	okbutton.setAttribute("value","OK");
+	okbutton.setAttribute("onclick","show_failures()");
+	var cancelbutton = document.createElement("input");
+	cancelbutton.setAttribute("type","button");
+	cancelbutton.setAttribute("value","Close");
+	cancelbutton.setAttribute("onclick","cancel_disambiguate()");
+	var tryagainbutton = document.createElement("input");
+	tryagainbutton.setAttribute("type","button");
+	if (new_curcp > 0) {
+            tryagainbutton.setAttribute("value","Try something else");
+	} else {
+	    tryagainbutton.setAttribute("value","Restart");
+	}
+	tryagainbutton.setAttribute("onclick","next_cp(" + new_curcp + ")");
+
+	disambcell.appendChild(okbutton);
+	disambcell.appendChild(tryagainbutton);
+	disambcell.appendChild(cancelbutton);
+
+	//disable_toparea();
+
+	//matita.disambMode = true;
+	updateSide();
+	
+}
+
+function show_failures() {
+
+	var choice = document.getElementsByName("choice")[get_checked_index("choice")];
+	var cpno = parseInt(choice.getAttribute("choicepointno"));
+	var choiceno = parseInt(choice.getAttribute("choiceno"));
+	var choicedesc = choice.getAttribute("desc");
+
+	var title = "<H3>Disambiguation failed</H3>";
+	var subtitle = "<p>Errors at node " + cpno + " = " + choicedesc + "</p>";
+
+	disambcell.innerHTML = title + subtitle;
+	var failures = get_failure_opts(cpno,choiceno);
+	for (var i = 0;i < failures.length;i++) {
+	    disambcell.appendChild(failures[i]);
+	    disambcell.appendChild(document.createTextNode(failures[i].getAttribute("title")));
+	    disambcell.appendChild(document.createElement("br"));
+	}
+	
+	var okbutton = document.createElement("input");
+	okbutton.setAttribute("type","button");
+	okbutton.setAttribute("value","Show error loc");
+	okbutton.setAttribute("onclick","show_err()");
+	var cancelbutton = document.createElement("input");
+	cancelbutton.setAttribute("type","button");
+	cancelbutton.setAttribute("value","Close");
+	cancelbutton.setAttribute("onclick","cancel_disambiguate()");
+	var backbutton = document.createElement("input");
+	backbutton.setAttribute("type","button");
+        backbutton.setAttribute("value","<< Back");
+	backbutton.setAttribute("onclick","next_cp(" + cpno + ")");
+
+	disambcell.appendChild(backbutton);
+	disambcell.appendChild(okbutton);
+	disambcell.appendChild(cancelbutton);
+	
+}
+
+function show_err() {
+	var radios = document.getElementsByName("failure");
+	for (i = 0; i < radios.length; i++) {
+	    if (radios[i].checked) {
+		var start = radios[i].getAttribute("start");
+		var stop = radios[i].getAttribute("stop");
+		var title = radios[i].getAttribute("title");
+	        var unlockedtxt = matita.unlockedbackup;
+	        var pre = unlockedtxt.substring(0,start).matita_to_html();
+	        var mid = unlockedtxt.substring(start,stop).matita_to_html();
+	        var post = unlockedtxt.substring(stop).matita_to_html();
+	        unlocked.innerHTML = pre + 
+	                "<span class=\"error\" title=\"Disambiguation failure\">" +
+	                mid + "</span>" + post;
+		break;
+	    }
+	}
+}
+
 function gotoBottom()
 {
 	processor = function(xml) {
 		if (is_defined(xml)) {
 			// debug("goto bottom: received response\nBEGIN\n" + req.responseText + "\nEND");
-			parsed = xml.getElementsByTagName("parsed")[0];
-			len = parseInt(parsed.getAttribute("length"));
-			if (len > 0) {
+			var parsed = xml.getElementsByTagName("parsed");
+			var localized = xml.getElementsByTagName("localized")[0];
+			var ambiguity = xml.getElementsByTagName("ambiguity")[0];
+			var generic_err = xml.getElementsByTagName("error")[0];
+			for (var i = 0;i < parsed.length; i++) {
+			  var len = parsed[i].getAttribute("length");
 	                  // len0 = unlocked.innerHTML.length;
-			  unescaped = unlocked.innerHTML.html_to_matita();
-                          // not working in mozilla
-		  	  // parsedtxt = parsed.childNodes[0].nodeValue;
-		  	  parsedtxt = parsed.childNodes[0].wholeText;
+			  var unescaped = unlocked.innerHTML.html_to_matita();
+			  // the browser may decide to split textnodes: use wholeText!
+		  	  var parsedtxt = parsed[i].childNodes[0].wholeText;
 		  	  //parsedtxt = unescaped.substr(0,len); 
-		  	  unparsedtxt = unescaped.substr(len);
+		  	  var unparsedtxt = unescaped.substr(len);
 		  	  lockedbackup += parsedtxt;
 		  	  locked.innerHTML = lockedbackup; //.matita_to_html();
 		  	  unlocked.innerHTML = unparsedtxt.matita_to_html();
 		  	  // len1 = unlocked.innerHTML.length;
-		  	  len2 = parsedtxt.length;
-		  	  metasenv = xml.getElementsByTagName("meta");
-	                  populate_goalarray(metasenv);
-		  	  if (len2 > 0)
-		            statements = listcons(len2,statements);
-		  	  unlocked.scrollIntoView(true);
+		  	  var len2 = parsedtxt.length;
+		          statements = listcons(len2,statements);
+			}
+		  	unlocked.scrollIntoView(true);
+		  	metasenv = xml.getElementsByTagName("meta");
+			init_autotraces();
+	                populate_goalarray(metasenv);
+
+			if (is_defined(ambiguity)) {
+			    var start = parseInt(ambiguity.getAttribute("start"));
+			    var stop = parseInt(ambiguity.getAttribute("stop"));
+			    var choices = xml.getElementsByTagName("choice");
+
+			    matita.ambiguityStart = start;
+			    matita.ambiguityStop = stop;
+			    matita.unlockedbackup = unlocked.innerHTML.html_to_matita();
+			    matita.interpretations = [];
+			
+			    var unlockedtxt = unlocked.innerHTML.html_to_matita();
+			    var pre = unlockedtxt.substring(0,start).matita_to_html();
+			    var mid = unlockedtxt.substring(start,stop).matita_to_html();
+			    var post = unlockedtxt.substring(stop).matita_to_html();
+			    unlocked.innerHTML = pre + 
+				    "<span class=\"error\" title=\"disambiguation error\">" +
+				    mid + "</span>" + post;
+
+			    var title = "<H3>Ambiguous input</H3>";
+			    disambcell.innerHTML = title;
+			    for (i = 0;i < choices.length;i++) {
+				matita.interpretations[i] = new Object();
+
+				var href = choices[i].getAttribute("href");
+				var title = choices[i].getAttribute("title");
+				var desc = choices[i].childNodes[0].nodeValue;
+
+				matita.interpretations[i].href = href;
+				matita.interpretations[i].title = title;
+				matita.interpretations[i].desc = desc;
+				
+				var choice = document.createElement("input");
+				choice.setAttribute("type","radio");
+				choice.setAttribute("name","interpr");
+				choice.setAttribute("href",href);
+				choice.setAttribute("title",title);
+				if (i == 0) choice.setAttribute("checked","");
+				
+				disambcell.appendChild(choice);
+				disambcell.appendChild(document.createTextNode(desc));
+				disambcell.appendChild(document.createElement("br"));
+			    }
+
+			    var okbutton = document.createElement("input");
+			    okbutton.setAttribute("type","button");
+			    okbutton.setAttribute("value","OK");
+			    okbutton.setAttribute("onclick","do_disambiguate()");
+			    var cancelbutton = document.createElement("input");
+			    cancelbutton.setAttribute("type","button");
+			    cancelbutton.setAttribute("value","Cancel");
+			    cancelbutton.setAttribute("onclick","cancel_disambiguate()");
+
+			    disambcell.appendChild(okbutton);
+			    disambcell.appendChild(cancelbutton);
+
+			    disable_toparea();
+
+			    matita.disambMode = true;
+			    updateSide();
+			}
+		        if (is_defined(localized)) {
+			    unlocked.innerHTML = localized.wholeText;
+			}
+			if (is_defined(generic_err)) {
+			    debug("Unmanaged error:\n" ^ generic_err.wholeText);
 			}
 		} else {
 			debug("goto bottom failed");
@@ -573,7 +967,6 @@ function gotoBottom()
 	};
 	pause();
 	callServer("bottom",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
-  
 }
 
 
@@ -595,6 +988,7 @@ function gotoTop()
 			unlocked.innerHTML = lockedbackup + unlocked.innerHTML;
 			lockedbackup = "";
                         locked.innerHTML = lockedbackup;
+			init_autotraces();
                         hideSequent();
                         unlocked.scrollIntoView(true);
 		} else {
@@ -617,7 +1011,7 @@ function gotoPos(offset)
 			len = parseInt(parsed.getAttribute("length"));
 	                // len0 = unlocked.innerHTML.length;
 			unescaped = unlocked.innerHTML.html_to_matita();
-			parsedtxt = parsed.childNodes[0].nodeValue;
+			parsedtxt = parsed.childNodes[0].wholeText;
 			//parsedtxt = unescaped.substr(0,len); 
 			unparsedtxt = unescaped.substr(len);
 			lockedbackup += parsedtxt;
@@ -631,12 +1025,14 @@ function gotoPos(offset)
 			unlocked.scrollIntoView(true);
 			// la populate non andrebbe fatta a ogni passo
 	                if (offset <= len) {
+			        init_autotraces();
 				populate_goalarray(metasenv);
 				resume();
 			} else {
 				gotoPos(offset - len);
 			}
 		} else {
+			init_autotraces();
 			unlocked.scrollIntoView(true);
 			populate_goalarray(metasenv);
 			resume();
@@ -665,6 +1061,7 @@ function retract()
                         locked.innerHTML = lockedbackup;
 			unlocked.innerHTML = statement + unlocked.innerHTML;
 			metasenv = xml.getElementsByTagName("meta");
+			init_autotraces();
                         populate_goalarray(metasenv);
                         unlocked.scrollIntoView(true);
 		} else {
@@ -710,12 +1107,13 @@ function retrieveFile(thefile)
                         } else {
                           unlocked.innerHTML = xml.childNodes[0].textContent;
                         }
+			init_autotraces();
 
 		} else {
 			debug("file open failed");
 		}
 	};
-	dialogBox.style.display = "none";
+	abortDialog();
 	callServer("open",processor,"file=" + escape(thefile)); 
 }
 
@@ -800,7 +1198,7 @@ function openDialog()
 function saveDialog()
 {  
 	callback = function (fname) { 
-	  dialogBox.style.display = "none";
+	  abortDialog();
           saveFile(fname,
 		   (locked.innerHTML.html_to_matita()).sescape(),
 		   (unlocked.innerHTML.html_to_matita()).sescape(),
@@ -812,7 +1210,7 @@ function saveDialog()
 function newDialog()
 {
 	callback = function (fname) { 
-	  dialogBox.style.display = "none";
+	  abortDialog();
 	  saveFile(fname,"","",false,newDialog,true);
 	};
 	showLibrary("Create new file", callback, newDialog);
@@ -914,34 +1312,50 @@ function updateAll()
 var goalcell;
 
 function hideSequent() {
-  goalcell.style.display = "none";
-  scriptcell.style.width = "100%";
-  scriptcell.style.minWidth = "100%";
-  scriptcell.style.maxWidth = "100%";
+	matita.proofMode = false;
+	updateSide();
 }
 
 function showSequent() {
-  scriptcell.style.width = "67%";
-  scriptcell.style.minWidth = "67%";
-  scriptcell.style.maxWidth = "67%";
-  goalcell.style.display = "inline-block";
+	matita.proofMode = true;
+	updateSide();
 }
 
 function showDialog(title,content,callback) {
   dialogTitle.innerHTML = title;
   dialogContent.innerHTML = content;
   dialogBox.callback = callback;
+
+  //Get the screen height and width
+  var maskHeight = $(document).height();
+  var maskWidth = $(window).width();
+  
+  //Set heigth and width to mask to fill up the whole screen
+  $('#mask').css({'width':maskWidth,'height':maskHeight});
+  
+  //transition effect		
+  $('#mask').fadeIn(100);	
+  $('#mask').fadeTo(200,0.8);	
+  
+  //Get the window height and width
+  var winH = $(window).height();
+  var winW = $(window).width();
+  
+  //Set the popup window to center
+  $('#dialogBox').css('top',  winH/2-$('#dialogBox').height()/2);
+  $('#dialogBox').css('left', winW/2-$('#dialogBox').width()/2);
+  
+  //transition effect
+  $('#dialogBox').fadeIn(200); 
+
   dialogBox.style.display = "block";
 }
 
-function abortDialog() {
+function abortDialog(dialog) {
+  $('#mask').hide();
   dialogBox.style.display = "none";
 }
 
-function abortUpload() {
-  uploadBox.style.display = "none";
-}
-
 function removeElement(id) {
   var element = document.getElementById(id);
   element.parentNode.removeChild(element);
@@ -988,7 +1402,7 @@ function findNode(list, node, acc) {
     dup = list[i].cloneNode(true);
     sandbox.appendChild(dup);
 //    debug("fail " + i + ": " + sandbox.innerHTML);
-    acc += sandbox.innerHTML.length;
+    acc += sandbox.innerHTML.html_to_matita().length;
     sandbox.removeChild(dup);
   }
   throw "not found";
@@ -998,6 +1412,75 @@ function test () {
   debug("cursor test: " + unlocked.innerHTML.substr(0,getCursorPos()));
 }
 
+function get_checked_index(name) {
+	var radios = document.getElementsByName(name);
+	for (i = 0; i < radios.length; i++) {
+	    if (radios[i].checked) {
+		    return i;
+	    }
+	}
+	return null;
+}
+
+function cancel_disambiguate() {
+	matita.disambMode = false;
+	$('#whitemask').hide();
+	updateSide();
+}
+
+function do_disambiguate() {
+	var i = get_checked_index("interpr");
+	if (i != null) {
+	    var pre = matita.unlockedbackup
+		      .substring(0,matita.ambiguityStart).matita_to_html();
+	    var mid = matita.unlockedbackup
+		      .substring(matita.ambiguityStart,matita.ambiguityStop)
+		      .matita_to_html();
+	    var post = matita.unlockedbackup
+		       .substring(matita.ambiguityStop).matita_to_html();
+
+	    var href = matita.interpretations[i].href;
+	    var title = matita.interpretations[i].title;
+
+	    if (is_defined(title)) {
+                mid = "<A href=\"" + href + "\" title=\"" + title + "\">" + mid + "</A>";
+	    } else {
+                mid = "<A href=\"" + href + "\">" + mid + "</A>";
+	    }
+
+	    unlocked.innerHTML = pre + mid + post;
+
+	    matita.disambMode = false;
+	    $('#whitemask').hide();
+	    updateSide();
+	}
+}
+
+function do_showerror() {
+	var i = get_checked_index("choice");
+	if (i != null) {
+	    var pre = matita.unlockedbackup
+		      .substring(0,matita.ambiguityStart).matita_to_html();
+	    var mid = matita.unlockedbackup
+		      .substring(matita.ambiguityStart,matita.ambiguityStop)
+		      .matita_to_html();
+	    var post = matita.unlockedbackup
+		       .substring(matita.ambiguityStop).matita_to_html();
+
+	    var href = matita.interpretations[i].href;
+	    var title = matita.interpretations[i].title;
+
+	    if (is_defined(title)) {
+                mid = "<A href=\"" + href + "\" title=\"" + title + "\">" + mid + "</A>";
+	    } else {
+                mid = "<A href=\"" + href + "\">" + mid + "</A>";
+	    }
+
+	    unlocked.innerHTML = pre + mid + post;
+
+	}
+}
+
 function readCookie(name) {
 	var nameEQ = name + "=";
 	var ca = document.cookie.split(';');
@@ -1020,3 +1503,12 @@ function delete_session()
 {
 	delete_cookie("session");
 }
+
+function disable_toparea() {
+	var offset = $('#toparea').offset();
+        $('#whitemask').css('top',offset.top);
+        $('#whitemask').css('left',offset.left);
+        $('#whitemask').css('width',$('#toparea').outerWidth() + "px");
+        $('#whitemask').css('height',$('#toparea').outerHeight() + "px");
+	$('#whitemask').fadeTo('fast',0.7);
+}