X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;ds=sidebyside;f=matitaB%2Fmatita%2Fmatitaweb.js;h=81995bb803ed42d8579f05d07d773ca252844b62;hb=bb9c48af6f729b0616a0fc5f1fd9037d4c3f2c89;hp=d4dbe63e80c6f07616177aa3e046c4969452fb29;hpb=12991316d484b80d149891d2a150e5703282c60c;p=helm.git

diff --git a/matitaB/matita/matitaweb.js b/matitaB/matita/matitaweb.js
index d4dbe63e8..81995bb80 100644
--- a/matitaB/matita/matitaweb.js
+++ b/matitaB/matita/matitaweb.js
@@ -11,31 +11,42 @@ var advanceButton;
 var retractButton;
 var cursorButton;
 var bottomButton;
+var dialogBox;
+var dialogTitle;
+var dialogContent;
 var metasenv = "";
 
 function initialize()
 {
-  locked = document.getElementById("locked");
-  unlocked = document.getElementById("unlocked");
-  workarea = document.getElementById("workarea");
-  scriptcell = document.getElementById("scriptcell");
-  goalcell = document.getElementById("goalcell");
-  goals = document.getElementById("goals");
-  goalview = document.getElementById("goalview");
-  filename = document.getElementById("filename");
-  logarea = document.getElementById("logarea");
-  advanceButton = document.getElementById("advance");
-  retractButton = document.getElementById("retract");
-  cursorButton = document.getElementById("cursor");
-  bottomButton = document.getElementById("bottom");
-
-  // hide sequent view at start
-  hideSequent();
+  if (readCookie("session") == null) {
+    window.location = "/login.html"
+  } else {
+    locked = document.getElementById("locked");
+    unlocked = document.getElementById("unlocked");
+    workarea = document.getElementById("workarea");
+    scriptcell = document.getElementById("scriptcell");
+    goalcell = document.getElementById("goalcell");
+    goals = document.getElementById("goals");
+    goalview = document.getElementById("goalview");
+    filename = document.getElementById("filename");
+    logarea = document.getElementById("logarea");
+    advanceButton = document.getElementById("advance");
+    retractButton = document.getElementById("retract");
+    cursorButton = document.getElementById("cursor");
+    bottomButton = document.getElementById("bottom");
+    dialogBox = document.getElementById("dialogBox");
+    dialogTitle = document.getElementById("dialogTitle");
+    dialogContent = document.getElementById("dialogContent");
+  
+    // hide sequent view at start
+    hideSequent();
+  }
 }
 
 function debug(txt)
 {
-        logarea.innerHTML = txt + "\n" + logarea.innerHTML;
+        // internet explorer (v.9) doesn't work with innerHTML
+        logarea.innerText = txt + "\n" + logarea.innerText;
 }
 
 function listhd(l)
@@ -436,6 +447,47 @@ function openFile()
 	callServer("open",processor,"file=" + escape(filename.value)); 
 }
 
+function showLibrary()
+{ 
+	var req = null; 
+        // pause();
+	if (window.XMLHttpRequest)
+	{
+		req = new XMLHttpRequest();
+	} 
+	else if (window.ActiveXObject) 
+	{
+		try {
+				req = new ActiveXObject("Msxml2.XMLHTTP");
+		} catch (e)
+		{
+			try {
+				req = new ActiveXObject("Microsoft.XMLHTTP");
+				} catch (e) {}
+		}
+   	}
+	req.onreadystatechange = function()
+	{ 
+
+		rs = req.readyState;
+
+		if(rs == 4)
+		{
+			stat = req.status;
+			stxt = req.statusText;
+			if(stat == 200)
+			{
+			  debug(req.responseText);
+			  showDialog("<H2>Library</H2>",req.responseText);
+			} 
+		} 
+	};
+	req.open("POST", "viewlib"); // + escape(unlocked.innerHTML), true);
+        req.setRequestHeader("Content-type","application/x-www-form-urlencoded");	
+	req.send();
+  
+}
+
 var goalcell;
 
 function hideSequent() {
@@ -448,6 +500,12 @@ function showSequent() {
   workarea.appendChild(goalcell);
 }
 
+function showDialog(title,content) {
+  dialogTitle.innerHTML = title;
+  dialogContent.innerHTML = content;
+  dialogBox.style.display = "block";
+}
+
 function removeElement(id) {
   var element = document.getElementById(id);
   element.parentNode.removeChild(element);
@@ -498,3 +556,26 @@ function findNode(list, node, acc) {
 function test () {
   debug("cursor test: " + unlocked.innerHTML.substr(0,getCursorPos()));
 }
+
+function readCookie(name) {
+	var nameEQ = name + "=";
+	var ca = document.cookie.split(';');
+	for(var i=0;i < ca.length;i++) {
+		var c = ca[i];
+		while (c.charAt(0)==' ') c = c.substring(1,c.length);
+		if (c.indexOf(nameEQ) == 0) return c.substring(nameEQ.length,c.length);
+	}
+	return null;
+}
+
+function delete_cookie ( cookie_name )
+{
+  var cookie_date = new Date();  // current date & time
+  cookie_date.setTime ( cookie_date.getTime() - 1 );
+  document.cookie = cookie_name += "=; expires=" + cookie_date.toGMTString();
+}
+
+function delete_session()
+{
+	delete_cookie("session");
+}