X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matitaB%2Fmatita%2Fmatitaweb.js;h=f0563928234812f20f980c467fc9b671784a1e6a;hb=0fdf8cd395b21ec003569383aee1449a6fe4b35a;hp=5cd0fef8211a0f7d4d499ce8860ee5ef48fb8a25;hpb=b6253961f0507b33cce774c0307a2674ae9fb2d5;p=helm.git

diff --git a/matitaB/matita/matitaweb.js b/matitaB/matita/matitaweb.js
index 5cd0fef82..f05639282 100644
--- a/matitaB/matita/matitaweb.js
+++ b/matitaB/matita/matitaweb.js
@@ -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)
@@ -81,6 +106,12 @@ function keyval(n)
     return s;
 }
  
+function string_of_key(n)
+{
+    if (n == null) return 'undefined';
+    return String.fromCharCode(n);
+}
+
 function pressmesg(w,e)
 {
    debug(w + '  keyCode=' + keyval(e.keyCode) +
@@ -101,20 +132,94 @@ 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)
 {
    if (!e) e= event;
    pressmesg('keypress',e);
-   return suppressdefault(e,/*document.testform.keypress.checked*/ false);
+   var s = string_of_key(e.charCode);
+   if (s == " ") {
+	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)
@@ -273,6 +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;
@@ -286,15 +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));
 }
 
@@ -386,15 +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);
@@ -405,7 +536,7 @@ function advanceForm1()
 		resume();
 	};
 	pause();
-        callServer("advance",processor,"body=" + (unlocked.innerHTML.unescapeHTML()).sescape());
+        callServer("advance",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
   
 }
 
@@ -414,30 +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)) {
@@ -445,16 +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);
@@ -473,7 +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()
@@ -483,10 +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);
@@ -506,8 +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");
 		}
@@ -520,8 +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");
 		}
@@ -530,9 +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)
 	{
@@ -561,7 +751,7 @@ function showLibrary()
 			if(stat == 200)
 			{
 			  debug(req.responseText);
-			  showDialog("<H2>Library</H2>",req.responseText);
+                          showDialog("<H2>" + title + "</H2>",req.responseText, callback);
 			} 
 		} 
 	};
@@ -571,42 +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);