File uploading

[helm.git] / matitaB / matita / matitaweb.js

diff --git a/matitaB/matita/matitaweb.js b/matitaB/matita/matitaweb.js
index c0b9458425ccde715e620507f978bb74b9de3b1b..837c687cb9385dc22af1948d924a041deb6b997e 100644 (file)
--- 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 +685,98 @@ function showLibrary()
   
 }
 
-function saveFile()
+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)) {
-                       debug("file saved!");
+                 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(current_fname)) {
+       if (is_defined(fname)) {
           pause();
-          callServer("save",processor,"file=" + escape(current_fname) + 
-                                   "&locked=" + (locked.innerHTML.html_to_matita()).sescape() +
-                                   "&unlocked=" + (unlocked.innerHTML.html_to_matita()).sescape());
+          callServer("save",processor,"file=" + escape(fname) + 
+                                   "&locked=" + lockedtxt +
+                                   "&unlocked=" + unlockedtxt +
+                                   "&force=" + force);
        }
        else { debug("no file selected"); }
 }
@@ -721,21 +798,34 @@ function commitAll()
 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);