]> matita.cs.unibo.it Git - helm.git/blobdiff - matitaB/matita/matitaweb.js
Matitaweb: changes to file selection dialog box.
[helm.git] / matitaB / matita / matitaweb.js
index 1088f51ce9047d3be85394ef4e565a7b8d653dc7..c0b9458425ccde715e620507f978bb74b9de3b1b 100644 (file)
@@ -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)
 {
@@ -118,13 +151,21 @@ function keypress(e)
        i = unlocked.innerHTML.lastIndexOf('\\',j);
                if (i >= 0) {
          match = unlocked.innerHTML.substring(i,j);
-         pre = unlocked.innerHTML.substring(0,i-1);
-         post = unlocked.innerHTML.substring(j+1);
-         if (match == '\\to') {
-             unlocked.innerHTML = pre + "-> " + post;
+         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 return suppressdefault(e,false);
+         else {
+             // restoreSelection(0); 
+            return suppressdefault(e,false);
+         }
        }
        else return suppressdefault(e,false);
    } else {
@@ -137,7 +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)
@@ -296,6 +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;
@@ -309,15 +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));
 }
 
@@ -409,15 +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);
@@ -428,7 +494,7 @@ function advanceForm1()
                resume();
        };
        pause();
-        callServer("advance",processor,"body=" + (unlocked.innerHTML.unescapeHTML()).sescape());
+        callServer("advance",processor,"body=" + (unlocked.innerHTML.html_to_matita()).sescape());
   
 }
 
@@ -437,26 +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());
   
 }
 
@@ -468,16 +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);
@@ -496,7 +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()
@@ -506,10 +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);
@@ -529,8 +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");
                }
@@ -543,13 +627,20 @@ 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)); 
 }
 
@@ -594,6 +685,39 @@ function showLibrary()
   
 }
 
+function saveFile()
+{
+       processor = function(xml) {
+               if (is_defined(xml)) {
+                       debug("file saved!");
+               } else {
+                       debug("save file failed");
+               }
+               resume();
+       };
+       if (is_defined(current_fname)) {
+          pause();
+          callServer("save",processor,"file=" + escape(current_fname) + 
+                                   "&locked=" + (locked.innerHTML.html_to_matita()).sescape() +
+                                   "&unlocked=" + (unlocked.innerHTML.html_to_matita()).sescape());
+       }
+       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() {
@@ -617,19 +741,24 @@ function removeElement(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);