fix storage and reset functionality for js and html challenge views

public/js/lib/coursewares/coursewaresHCJQFramework_0.1.9.js

@@ -77,6 +77,7 @@ function updatePreview() {
   preview.open();
   $('#testSuite').empty();
   preview.write(libraryIncludes + editor.getValue() + iFrameScript);
+  codeStorage.updateStorage();
   preview.close();
 
 }
@@ -163,3 +164,102 @@ function showCompletion() {
     }
   });
 }
+
+/*
+ Local Storage Update System By Andrew Cay(Resto)
+ codeStorage: singleton object that contains properties and methods related to
+ dealing with the localStorage system.
+ The keys work off of the variable challenge_name to make unique identifiers per bonfire
+
+ Two extra functionalities:
+ Added anonymous version checking system incase of future updates to the system
+ Added keyup listener to editor(myCodeMirror) so the last update has been saved to storage
+ */
+var codeStorage = {
+  version: 0.01,
+  keyVersion:"saveVersion",
+  keyValue: null,//where the value of the editor is saved
+  updateWait: 2000,// 2 seconds
+  updateTimeoutId: null,
+  eventArray: []//for firing saves
+};
+// Returns true if the editor code was saved since last key press (use this if you want to make a "saved" notification somewhere")
+codeStorage.hasSaved = function(){
+  return ( updateTimeoutId === null );
+};
+codeStorage.onSave = function(func){
+  codeStorage.eventArray.push(func);
+};
+codeStorage.setSaveKey = function(key){
+  codeStorage.keyValue = key + 'Val';
+};
+codeStorage.getEditorValue = function(){
+  return ('' + localStorage.getItem(codeStorage.keyValue));
+};
+
+codeStorage.isAlive = function() {
+  var val = this.getEditorValue()
+  return val !== 'null' &&
+    val !== 'undefined' &&
+    (val && val.length > 0);
+}
+codeStorage.updateStorage = function(){
+  if(typeof(Storage) !== undefined) {
+    var value = editor.getValue();
+    localStorage.setItem(codeStorage.keyValue, value);
+  } else {
+    var debugging = false;
+    if( debugging ){
+      console.log('no web storage');
+    }
+  }
+  codeStorage.updateTimeoutId = null;
+  codeStorage.eventArray.forEach(function(func){
+    func();
+  });
+};
+//Update Version
+(function(){
+  var savedVersion = localStorage.getItem('saveVersion');
+  if( savedVersion === null ){
+    localStorage.setItem(codeStorage.keyVersion, codeStorage.version);//just write current version
+  }else{
+    if( savedVersion !== codeStorage.version ){
+      //Update version
+    }
+  }
+})();
+
+
+
+///Set everything up one page
+/// Update local save when editor has changed
+codeStorage.setSaveKey(challenge_Name);
+editor.on('keyup', function(){
+  window.clearTimeout(codeStorage.updateTimeoutId);
+  codeStorage.updateTimeoutId = window.setTimeout(codeStorage.updateStorage, codeStorage.updateWait);
+});
+
+var editorValue;
+
+
+var challengeSeed = challengeSeed || null;
+var tests = tests || [];
+
+
+var allSeeds = '';
+(function() {
+  challengeSeed.forEach(function(elem) {
+    allSeeds += elem + '\n';
+  });
+})();
+
+editorValue = (codeStorage.isAlive())? codeStorage.getEditorValue() : allSeeds;
+
+editor.setValue(editorValue);
+
+var resetEditor = function resetEditor() {
+  editor.setValue(allSeeds);
+  updatePreview();
+  codeStorage.updateStorage();
+};