X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matitaB%2Fmatita%2Fmatitaweb.js;h=837c687cb9385dc22af1948d924a041deb6b997e;hb=9dac2c325dca1b5b92d6ba11dadf470538bae28e;hp=05629a2cb984e081595669b6e7d9ba8a6bf8a064;hpb=4e1d07a76a5f573d9ac720ff770629e69478a5a8;p=helm.git

diff --git a/matitaB/matita/matitaweb.js b/matitaB/matita/matitaweb.js
index 05629a2cb..837c687cb 100644
--- a/matitaB/matita/matitaweb.js
+++ b/matitaB/matita/matitaweb.js
@@ -15,6 +15,7 @@ var dialogBox;
 var dialogTitle;
 var dialogContent;
 var metasenv = "";
+var lockedbackup = "";
 
 function initialize()
 {
@@ -107,6 +108,38 @@ function suppressdefault(e,flag)
    }
    return !flag;
 }
+
+function restoreSelection(adjust) {
+    unlocked.focus();
+    if (savedRange != null) {
+        if (window.getSelection)//non IE and there is already a selection
+        {
+            var s = window.getSelection();
+            if (s.rangeCount > 0) 
+                s.removeAllRanges();
+	    range = document.createRange();
+	    range.setStart(savedsc,savedso + adjust);
+	    range.collapse(true);
+            s.addRange(range);
+        }
+        else 
+            if (document.createRange)//non IE and no selection
+            {
+                window.getSelection().addRange(savedRange);
+            }
+            else 
+                if (document.selection)//IE
+                {
+                    savedRange.select();
+                }
+    }
+}
+
+function lookup_tex(texmacro)
+{
+  texmacro = texmacro.substring(1);
+  return unescape(macro2utf8[texmacro]);
+}
  
 function keypress(e)
 {
@@ -114,7 +147,27 @@ 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);
+	  pre = unlocked.innerHTML.substring(0,i);
+	  post = unlocked.innerHTML.substring(j);
+	  
+	  sym = lookup_tex(match);
+	  if (typeof sym != "undefined") {
+	     len1 = unlocked.innerText.length;
+             unlocked.innerHTML = pre + sym + post;
+	     len2 = unlocked.innerText.length;
+             restoreSelection(len2 - len1); 
+ 	     return suppressdefault(e,true);
+	  }
+	  else {
+             // restoreSelection(0); 
+	     return suppressdefault(e,false);
+	  }
+	}
+	else return suppressdefault(e,false);
    } else {
 	return suppressdefault(e,false);
    }
@@ -125,7 +178,8 @@ 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;
+        logarea.innerHTML = txt; // + "\n" + logarea.innerText;
 }
 
 function listhd(l)
@@ -284,6 +338,8 @@ 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 +353,33 @@ 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 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,">");
+	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 +471,19 @@ 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 +494,7 @@ function advanceForm1()
 		resume();
 	};
 	pause();
-        callServer("advance",processor,"body=" + (unlocked.innerHTML.unescapeHTML()).sescape());
+        callServer("advance",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
   
 }
 
@@ -425,26 +503,34 @@ 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());
   
 }
 
@@ -456,16 +542,18 @@ 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 +572,7 @@ 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 +582,17 @@ 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 +612,9 @@ 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");
 		}
@@ -531,17 +627,24 @@ function retrieveFile(thefile)
 	processor = function(xml)
 	{
 	        if (is_defined(xml)) {	
-	        	locked.innerHTML = "";
-	                unlocked.innerHTML = xml.documentElement.textContent;
+	        	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);
+	                unlocked.innerHTML = xml.childNodes[0].textContent;
+
 		} else {
 			debug("file open failed");
 		}
 	};
 	dialogBox.style.display = "none";
+	current_fname = thefile;
 	callServer("open",processor,"file=" + escape(thefile)); 
 }
 
-function showLibrary()
+function showLibrary(title,callback)
 { 
 	var req = null; 
         // pause();
@@ -572,7 +675,7 @@ function showLibrary()
 			if(stat == 200)
 			{
 			  debug(req.responseText);
-			  showDialog("<H2>Library</H2>",req.responseText);
+			  showDialog("<H2>" + title + "</H2>",req.responseText, callback);
 			} 
 		} 
 	};
@@ -582,42 +685,170 @@ 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);
+}
+
+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);
+}
+
+function newDialog()
+{
+	callback = function (fname) { 
+	  dialogBox.style.display = "none";
+	  saveFile(fname,"","",false,newDialog,true);
+	};
+	showLibrary("Create new file", callback);
+}
+
+
+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 {
+  	            current_fname = 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 commitAll()
+{
+	processor = function(xml) {
+		if (is_defined(xml)) {
+			debug("commit succeeded(?)");
+		} else {
+			debug("commit failed!");
+		}
+		resume();
+	};
+        pause();
+        callServer("commit",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);