X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=blobdiff_plain;f=matitaB%2Fmatita%2Fmatitaweb.js;h=221ef90b56f3c6361d5338d48c71d5a89548498e;hb=5f1afbcf716a9275f70baa02a5a464bd2abc0726;hp=c0b9458425ccde715e620507f978bb74b9de3b1b;hpb=0cda74283ace2af53332667a32978dac2701dc78;p=helm.git

diff --git a/matitaB/matita/matitaweb.js b/matitaB/matita/matitaweb.js
index c0b945842..221ef90b5 100644
--- a/matitaB/matita/matitaweb.js
+++ b/matitaB/matita/matitaweb.js
@@ -644,7 +644,7 @@ function retrieveFile(thefile)
 	callServer("open",processor,"file=" + escape(thefile)); 
 }
 
-function showLibrary()
+function showLibrary(title,callback)
 { 
 	var req = null; 
         // pause();
@@ -675,7 +675,7 @@ function showLibrary()
 			if(stat == 200)
 			{
 			  debug(req.responseText);
-			  showDialog("<H2>Library</H2>",req.responseText);
+			  showDialog("<H2>" + title + "</H2>",req.responseText, callback);
 			} 
 		} 
 	};
@@ -685,21 +685,44 @@ function showLibrary()
   
 }
 
-function saveFile()
+function openDialog()
+{  
+	callback = function (fname) { retrieveFile(fname); };
+	showLibrary("Open file", callback);
+}
+
+function saveDialog()
+{  
+	callback = function (fname) { saveFile(fname,false); };
+	showLibrary("Save file as", callback);
+}
+
+function saveFile(fname,force)
 {
+        if (!is_defined(fname) {
+            fname = current_fname;
+        }
 	processor = function(xml) {
 		if (is_defined(xml)) {
+		  if (xml.childNodes[0].textContent != "ok") {
+                    if (confirm("File already exists. Do you want to proceed anyway?")) {
+                       saveFile(fname,true);
+		    } else {
+                      saveDialog();
+		    }
+		  } else
 			debug("file saved!");
 		} else {
 			debug("save file failed");
 		}
 		resume();
 	};
-	if (is_defined(current_fname)) {
+	if (is_defined(fname)) {
           pause();
-          callServer("save",processor,"file=" + escape(current_fname) + 
+          callServer("save",processor,"file=" + escape(fname) + 
 			            "&locked=" + (locked.innerHTML.html_to_matita()).sescape() +
-			            "&unlocked=" + (unlocked.innerHTML.html_to_matita()).sescape());
+			            "&unlocked=" + (unlocked.innerHTML.html_to_matita()).sescape() +
+				    "&force=" + force);
 	}
 	else { debug("no file selected"); }
 }
@@ -730,10 +753,11 @@ function showSequent() {
   workarea.appendChild(goalcell);
 }
 
-function showDialog(title,content) {
+function showDialog(title,content,callback) {
   dialogTitle.innerHTML = title;
   dialogContent.innerHTML = content;
   dialogBox.style.display = "block";
+  dialogBox.callback = callback;
 }
 
 function removeElement(id) {