]> matita.cs.unibo.it Git - helm.git/blobdiff - matitaB/matita/matitaweb.js
Matitaweb: added a titlebar to the GUI.
[helm.git] / matitaB / matita / matitaweb.js
index 05629a2cb984e081595669b6e7d9ba8a6bf8a064..f0563928234812f20f980c467fc9b671784a1e6a 100644 (file)
@@ -15,12 +15,30 @@ var dialogBox;
 var dialogTitle;
 var dialogContent;
 var metasenv = "";
+var lockedbackup = "";
+
+function text_of_html(h)
+{
+  if(document.all) {
+     return h.innerText;
+  } else {
+     return h.textContent;
+  }
+}
+
+function unescape_html(s)
+{
+  u = document.getElementById("unescape");
+  u.innerHTML = s;
+  return text_of_html(u)
+}
 
 function initialize()
 {
   if (readCookie("session") == null) {
     window.location = "/login.html"
   } else {
+    matitaTitle = document.getElementById("matitaTitle");
     locked = document.getElementById("locked");
     unlocked = document.getElementById("unlocked");
     workarea = document.getElementById("workarea");
@@ -37,6 +55,8 @@ function initialize()
     dialogBox = document.getElementById("dialogBox");
     dialogTitle = document.getElementById("dialogTitle");
     dialogContent = document.getElementById("dialogContent");
+
+    changeFile("test.ma");
   
     // hide sequent view at start
     hideSequent();
@@ -46,6 +66,11 @@ function initialize()
   }
 }
 
+function changeFile(name) {
+    current_fname = name;
+    matitaTitle.innerHTML = "Matita - cic:/matita/" + name;
+}
+
 function init_keyboard(target)
 {
     if (target.addEventListener)
@@ -107,6 +132,35 @@ function suppressdefault(e,flag)
    }
    return !flag;
 }
+
+function restoreSelection(r) {
+    unlocked.focus();
+    if (r != null) {
+        if (window.getSelection)//non IE and there is already a selection
+        {
+            var s = window.getSelection();
+            if (s.rangeCount > 0) 
+                s.removeAllRanges();
+            s.addRange(r);
+        }
+        else 
+            if (document.createRange)//non IE and no selection
+            {
+                window.getSelection().addRange(r);
+            }
+            else 
+                if (document.selection)//IE
+                {
+                    r.select();
+                }
+    }
+}
+
+function lookup_tex(texmacro)
+{
+  texmacro = texmacro.substring(1);
+  return unescape(macro2utf8[texmacro]);
+}
  
 function keypress(e)
 {
@@ -114,18 +168,58 @@ function keypress(e)
    pressmesg('keypress',e);
    var s = string_of_key(e.charCode);
    if (s == " ") {
-       return suppressdefault(e,true);
+       j = getCursorPos();
+       i = unlocked.innerHTML.lastIndexOf('\\',j);
+               if (i >= 0) {
+         match = unlocked.innerHTML.substring(i,j);
+         sym = unescape_html(lookup_tex(match));
+         if (sym != "undefined") {
+             if (window.getSelection) { // non IE
+                savedRange.setStart(savedsc,savedso - (j-i));
+                savedRange.deleteContents();
+                savedRange.insertNode(document.createTextNode(sym));
+                savedsc.parentNode.normalize();
+                if (savedRange.collapsed) { // Mozilla
+                  savedRange.setEnd(savedsc,savedRange.endOffset + sym.length);
+                }
+                savedRange.collapse(false);
+             } else {
+                savedRange.moveStart(i-j);
+                savedRange.text(sym);
+                savedRange.collapse(false);
+             }
+             restoreSelection(savedRange); 
+                    return suppressdefault(e,true);
+         }
+         else {
+             // restoreSelection(0); 
+            return suppressdefault(e,false);
+         }
+       }
+       else return suppressdefault(e,false);
    } else {
        return suppressdefault(e,false);
    }
 }
  
+var logtxt = "";
+
 function debug(txt)
 {
         // internet explorer (v.9) doesn't work with innerHTML
        // but google chrome's innerText is, in a sense, "write only"
        // what should we do?
-        logarea.innerText = txt + "\n" + logarea.innerText;
+        // logarea.innerText = txt + "\n" + logarea.innerText;
+        logtxt = logtxt + "\n" + txt;
+}
+
+function showLog() {
+  logWin = window.open( "", "Matita Log",
+     "width=600,height=450,status,scrollbars,resizable,screenX=20,screenY=40,left=20,top=40");
+  logWin.document.write('<html><head><title>Matita Log' + '</title></head>');  
+  logWin.document.write('<body><textarea style="width:100%;height:100%;">' +
+    logtxt + '</textarea></body></html>');
+  logWin.document.close(); 
 }
 
 function listhd(l)
@@ -284,6 +378,8 @@ function switch_goal(meta)
   }
 }
 
+// the following is used to avoid escaping unicode, which results in 
+// the server being unable to unescape the string
 String.prototype.sescape = function() {
        var patt1 = /%/gi;
        var patt2 = /=/gi;
@@ -297,15 +393,35 @@ String.prototype.sescape = function() {
        return (result);
 }
 
-String.prototype.unescapeHTML = function()
+String.prototype.html_to_matita = function()
 {
        var patt1 = /<br(\/|)>/gi;
-       var patt2 = /&lt;/gi;
-       var patt3 = /&gt;/gi;
+       var patt2 = /</gi
+       var patt3 = />/gi
+       var patt4 = /&lt;/gi;
+       var patt5 = /&gt;/gi;
+       var patt6 = /&nbsp;/gi;
        var result = this;
        result = result.replace(patt1,"\n");
-       result = result.replace(patt2,"<");
-       result = result.replace(patt3,">");
+       result = result.replace(patt2,"\005");
+       result = result.replace(patt3,"\006");
+       result = result.replace(patt4,"<");
+       result = result.replace(patt5,">");
+       result = result.replace(patt6," ");
+       return (unescape(result));
+}
+
+String.prototype.matita_to_html = function()
+{
+       var patt1 = /</gi
+       var patt2 = />/gi
+       var patt3 = /\005/gi;
+       var patt4 = /\006/gi;
+       var result = this;
+       result = result.replace(patt1,"&lt;");
+       result = result.replace(patt2,"&gt;");
+       result = result.replace(patt3,"<");
+       result = result.replace(patt4,">");
        return (unescape(result));
 }
 
@@ -397,15 +513,19 @@ function advanceForm1()
        processor = function(xml) {
                if (is_defined(xml)) {
                        // debug("advance: received response\nBEGIN\n" + req.responseText + "\nEND");
-                       len = parseInt(xml.getElementsByTagName("parsed")[0].getAttribute("length"));
-                       len0 = unlocked.innerHTML.length;
-                       unescaped = unlocked.innerHTML.unescapeHTML();
-                       parsedtxt = unescaped.substr(0,len); 
+                       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);
-                       locked.innerHTML = locked.innerHTML + parsedtxt;
-                       unlocked.innerHTML = unparsedtxt;
-                       len1 = unlocked.innerHTML.length;
-                       len2 = len0 - len1;
+                       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);
@@ -416,7 +536,7 @@ function advanceForm1()
                resume();
        };
        pause();
-        callServer("advance",processor,"body=" + (unlocked.innerHTML.unescapeHTML()).sescape());
+        callServer("advance",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
   
 }
 
@@ -425,30 +545,67 @@ function gotoBottom()
        processor = function(xml) {
                if (is_defined(xml)) {
                        // debug("goto bottom: received response\nBEGIN\n" + req.responseText + "\nEND");
-                       len = parseInt(xml.getElementsByTagName("parsed")[0].getAttribute("length"));
-                       len0 = unlocked.innerHTML.length;
-                       unescaped = unlocked.innerHTML.unescapeHTML();
-                       parsedtxt = unescaped.substr(0,len); 
-                       unparsedtxt = unescaped.substr(len);
-                       locked.innerHTML = locked.innerHTML + parsedtxt;
-                       unlocked.innerHTML = unparsedtxt;
-                       len1 = unlocked.innerHTML.length;
-                       len2 = len0 - len1;
-                       metasenv = xml.getElementsByTagName("meta");
-                       populate_goalarray(metasenv);
-                       statements = listcons(len2,statements);
-                       unlocked.scrollIntoView(true);
+                       parsed = xml.getElementsByTagName("parsed")[0];
+                       len = parseInt(parsed.getAttribute("length"));
+                       if (len > 0) {
+                         // len0 = unlocked.innerHTML.length;
+                         unescaped = unlocked.innerHTML.html_to_matita();
+                          // not working in mozilla
+                         // parsedtxt = parsed.childNodes[0].nodeValue;
+                         parsedtxt = parsed.childNodes[0].wholeText;
+                         //parsedtxt = unescaped.substr(0,len); 
+                         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);
+                       }
                } else {
                        debug("goto bottom failed");
                } 
                 resume();
        };
        pause();
-       callServer("bottom",processor,"body=" + (unlocked.innerHTML.unescapeHTML()).sescape());
+       callServer("bottom",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
   
 }
 
 
+function gotoTop()
+{
+       processor = function(xml) {
+               if (is_defined(xml)) {
+                 if (xml.childNodes[0].textContent != "ok") {
+                     debug("goto top failed");
+                  }
+                  else
+                        statements = listnil();
+                       /*
+                        lockedlen = locked.innerHTML.length - statementlen;
+                       statement = locked.innerHTML.substr(lockedlen, statementlen);
+                        locked.innerHTML = locked.innerHTML.substr(0,lockedlen);
+                       unlocked.innerHTML = statement + unlocked.innerHTML;
+                       */
+                       unlocked.innerHTML = lockedbackup + unlocked.innerHTML;
+                       lockedbackup = "";
+                        locked.innerHTML = lockedbackup;
+                        hideSequent();
+                        unlocked.scrollIntoView(true);
+               } else {
+                       debug("goto top failed");
+               } 
+                resume();
+       };
+       pause();
+       callServer("top",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
+  
+}
 function gotoPos(offset)
 {
         if (!is_defined(offset)) {
@@ -456,16 +613,18 @@ function gotoPos(offset)
         }
        processor = function(xml) {
                if (is_defined(xml)) {
-                       // debug("goto pos: received response\nBEGIN\n" + req.responseText + "\nEND");
-                       len = parseInt(xml.getElementsByTagName("parsed")[0].getAttribute("length"));
-                       len0 = unlocked.innerHTML.length;
-                       unescaped = unlocked.innerHTML.unescapeHTML();
-                       parsedtxt = unescaped.substr(0,len); 
+                       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);
-                       locked.innerHTML = locked.innerHTML + parsedtxt;
-                       unlocked.innerHTML = unparsedtxt;
-                       len1 = unlocked.innerHTML.length;
-                       len2 = len0 - len1;
+                       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);
                        statements = listcons(len2,statements);
@@ -484,7 +643,7 @@ function gotoPos(offset)
                }
        }
        pause();
-       callServer("advance",processor,"body=" + (unlocked.innerHTML.unescapeHTML()).sescape());
+       callServer("advance",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
 }
 
 function retract()
@@ -494,10 +653,17 @@ function retract()
                        // debug("advance: received response\nBEGIN\n" + req.responseText + "\nEND");
                        statementlen = parseInt(listhd(statements));
                         statements = listtl(statements);
+                       /*
                         lockedlen = locked.innerHTML.length - statementlen;
                        statement = locked.innerHTML.substr(lockedlen, statementlen);
                         locked.innerHTML = locked.innerHTML.substr(0,lockedlen);
                        unlocked.innerHTML = statement + unlocked.innerHTML;
+                       */
+                        lockedlen = lockedbackup.length - statementlen;
+                       statement = lockedbackup.substr(lockedlen, statementlen);
+                       lockedbackup = lockedbackup.substr(0,lockedlen);
+                        locked.innerHTML = lockedbackup;
+                       unlocked.innerHTML = statement + unlocked.innerHTML;
                        metasenv = xml.getElementsByTagName("meta");
                         populate_goalarray(metasenv);
                         unlocked.scrollIntoView(true);
@@ -517,8 +683,9 @@ function openFile()
        processor = function(xml)
        {
                if (is_defined(xml)) {  
-                       locked.innerHTML = "";
-                       unlocked.innerHTML = xml.documentElement.textContent;
+                       lockedbackup = "";
+                       locked.innerHTML = lockedbackup;
+                       unlocked.innerHTML = xml.documentElement.wholeText;
                } else {
                        debug("file open failed");
                }
@@ -531,8 +698,19 @@ function retrieveFile(thefile)
        processor = function(xml)
        {
                if (is_defined(xml)) {  
-                       locked.innerHTML = "";
-                       unlocked.innerHTML = xml.documentElement.textContent;
+                       changeFile(thefile);
+                       lockedbackup = ""
+                       locked.innerHTML = lockedbackup;
+                        // code originally used in google chrome (problems with mozilla)
+                       // debug(xml.getElementsByTagName("file")[0].childNodes[0].nodeValue);
+                       // unlocked.innerHTML = xml.getElementsByTagName("file")[0].childNodes[0].nodeValue;
+                       debug(xml.childNodes[0].textContent);
+                        if (document.all) { // IE
+                          unlocked.innerHTML = xml.childNodes[0].text;
+                        } else {
+                          unlocked.innerHTML = xml.childNodes[0].textContent;
+                        }
+
                } else {
                        debug("file open failed");
                }
@@ -541,9 +719,10 @@ function retrieveFile(thefile)
        callServer("open",processor,"file=" + escape(thefile)); 
 }
 
-function showLibrary()
+function showLibrary(title,callback,reloadDialog)
 { 
-       var req = null; 
+       var req = null;
+        dialogBox.reload = reloadDialog; 
         // pause();
        if (window.XMLHttpRequest)
        {
@@ -572,7 +751,7 @@ function showLibrary()
                        if(stat == 200)
                        {
                          debug(req.responseText);
-                         showDialog("<H2>Library</H2>",req.responseText);
+                          showDialog("<H2>" + title + "</H2>",req.responseText, callback);
                        } 
                } 
        };
@@ -582,42 +761,210 @@ function showLibrary()
   
 }
 
+function uploadDialog()
+{  
+        uploadBox.style.display = "block";
+}
+
+function uploadOK()
+{   
+   var file = document.getElementById("uploadFilename").files[0];
+   if (file) { 
+       var filecontent = file.getAsText("UTF-8");
+       locked.innerHTML = lockedbackup;
+       unlocked.innerHTML = filecontent;
+       uploadBox.style.display = "none";
+   }
+//   if (file) { 
+//      var reader = new FileReader();
+//      reader.readAsText(file, "UTF-8");
+//       reader.onloadend = function (evt) {
+//        lockedbackup = "";
+//           locked.innerHTML = lockedbackup
+//           unlocked.innerHTML = evt.target.result;
+//           uploadBox.style.display = "none";
+//       }
+//       reader.onerror = function (evt) {
+//        debug("file open failed");
+//           uploadBox.style.display = "none";
+//      }
+//   }
+}
+
+function openDialog()
+{  
+       callback = function (fname) { retrieveFile(fname); };
+       showLibrary("Open file", callback, openDialog);
+}
+
+function saveDialog()
+{  
+       callback = function (fname) { 
+         dialogBox.style.display = "none";
+          saveFile(fname,
+                  (locked.innerHTML.html_to_matita()).sescape(),
+                  (unlocked.innerHTML.html_to_matita()).sescape(),
+                  false,saveDialog); 
+        };
+       showLibrary("Save file as", callback, saveDialog);
+}
+
+function newDialog()
+{
+       callback = function (fname) { 
+         dialogBox.style.display = "none";
+         saveFile(fname,"","",false,newDialog,true);
+       };
+       showLibrary("Create new file", callback, newDialog);
+}
+
+
+function saveFile(fname,lockedtxt,unlockedtxt,force,reloadDialog,reloadFile)
+{
+        if (!is_defined(reloadFile)) { reloadFile = true };
+        if (!is_defined(fname)) {
+            fname = current_fname;
+           lockedtxt = (locked.innerHTML.html_to_matita()).sescape();
+           unlockedtxt = (unlocked.innerHTML.html_to_matita()).sescape();
+           force = true;
+           // when force is true, reloadDialog is not needed 
+        }
+       processor = function(xml) {
+               if (is_defined(xml)) {
+                 if (xml.childNodes[0].textContent != "ok") {
+                    if (confirm("File already exists. All existing data will be lost.\nDo you want to proceed anyway?")) {
+                       saveFile(fname,lockedtxt,unlockedtxt,true,reloadDialog,reloadFile);
+                   } else {
+                      reloadDialog();
+                   }
+                 } else {
+                   changeFile(fname);
+                   debug("file saved!");
+                    if (reloadFile) { retrieveFile(fname); }
+                 }
+               } else {
+                       debug("save file failed");
+               }
+               resume();
+       };
+       if (is_defined(fname)) {
+          pause();
+          callServer("save",processor,"file=" + escape(fname) + 
+                                   "&locked=" + lockedtxt +
+                                   "&unlocked=" + unlockedtxt +
+                                   "&force=" + force);
+       }
+       else { debug("no file selected"); }
+}
+
+function createDir() {
+   abortDialog();
+   dirname = prompt("New directory name:\ncic:/matita/","newdir");
+   if (dirname != null) {
+       processor = function(xml) {
+               if (is_defined(xml)) {
+                 if (xml.childNodes[0].textContent != "ok") {
+                      alert("An error occurred :-(");
+                 }
+               } else {
+                      alert("An error occurred :-(");
+               }
+                dialogBox.reload();
+       };
+        pause();
+        callServer("save",processor,"file=" + escape(dirname) + 
+                                    "&locked=&unlocked=&force=false&dir=true");
+   } else {
+      dialogBox.reload();
+   }
+}
+
+function commitAll()
+{
+       processor = function(xml) {
+               if (is_defined(xml)) {
+                        debug(xml.getElementsByTagName("details")[0].textContent);
+                       alert("Commit executed: see details in the log.\n\n" +
+                              "NOTICE: this message does NOT imply (yet) that the commit was successful.");
+               } else {
+                       alert("Commit failed!");
+               }
+               resume();
+       };
+        pause();
+        callServer("commit",processor);
+}
+
+function updateAll()
+{
+       processor = function(xml) {
+               if (is_defined(xml)) {
+                       alert("Update executed.\n\n" +
+                              "Details:\n" +
+                              xml.getElementsByTagName("details")[0].textContent);
+               } else {
+                       alert("Update failed!");
+               }
+               resume();
+       };
+        pause();
+        callServer("update",processor);
+}
+
 var goalcell;
 
 function hideSequent() {
-  goalcell.parentNode.removeChild(goalcell);
-  scriptcell.setAttribute("colspan","2");
+  goalcell.style.display = "none";
+  scriptcell.style.width = "100%";
+  scriptcell.style.minWidth = "100%";
+  scriptcell.style.maxWidth = "100%";
 }
 
 function showSequent() {
-  scriptcell.setAttribute("colspan","1");
-  workarea.appendChild(goalcell);
+  scriptcell.style.width = "67%";
+  scriptcell.style.minWidth = "67%";
+  scriptcell.style.maxWidth = "67%";
+  goalcell.style.display = "inline-block";
 }
 
-function showDialog(title,content) {
+function showDialog(title,content,callback) {
   dialogTitle.innerHTML = title;
   dialogContent.innerHTML = content;
+  dialogBox.callback = callback;
   dialogBox.style.display = "block";
 }
 
+function abortDialog() {
+  dialogBox.style.display = "none";
+}
+
+function abortUpload() {
+  uploadBox.style.display = "none";
+}
+
 function removeElement(id) {
   var element = document.getElementById(id);
   element.parentNode.removeChild(element);
 } 
 
+var savedsc;
+var savedso;
+
 function getCursorPos() {
   var cursorPos;
   if (window.getSelection) {
     var selObj = window.getSelection();
-    var selRange = selObj.getRangeAt(0);
+    savedRange = selObj.getRangeAt(0);
+    savedsc = savedRange.startContainer;
+    savedso = savedRange.startOffset;
     //cursorPos =  findNode(selObj.anchorNode.parentNode.childNodes, selObj.anchorNode) + selObj.anchorOffset;
     cursorPos =  findNode(unlocked.childNodes, selObj.anchorNode,0) + selObj.anchorOffset;
     /* FIXME the following works wrong in Opera when the document is longer than 32767 chars */
     return(cursorPos);
   }
   else if (document.selection) {
-    var range = document.selection.createRange();
-    var bookmark = range.getBookmark();
+    savedRange = document.selection.createRange();
+    var bookmark = savedRange.getBookmark();
     /* FIXME the following works wrong when the document is longer than 65535 chars */
     cursorPos = bookmark.charCodeAt(2) - 11; /* Undocumented function [3] */
     return(cursorPos);