CodeMirror.

cms/static/js/views/settings/advanced_view.js

@@ -55,36 +55,32 @@ CMS.Views.Settings.Advanced = CMS.Views.ValidatingView.extend({
     attachJSONEditor : function (textarea) {
         var self = this;
         CodeMirror.fromTextArea(textarea, {
-            mode: "text/html", lineNumbers: true, lineWrapping: true,
+            mode: "application/json", lineNumbers: false, lineWrapping: true,
             onBlur: function (mirror) {
                 var key = $(mirror.getWrapperElement()).closest('.row').children('.key').attr('id');
-                mirror.save();
                 var quotedValue = mirror.getValue();
+                // TODO: error checking
                 var JSONValue = JSON.parse(quotedValue);
                 self.model.set(key, JSONValue, {validate: true});
                 self.showMessage(self.unsaved_changes);
-                // cachethis.clearValidationErrors();
-                // var newVal = mirror.getValue();
-                // if (cachethis.model.get(field) != newVal) cachethis.model.save(field, newVal,
-                //    { error: CMS.ServerError});
             }
         });
     },
 
     showMessage: function (type) {
         this.$el.find(".message-status").removeClass("is-shown");
-        // var saveButton = this.$el.find(".save-button").addClass('disabled');
-        // var cancelButton = this.$el.find(".cancel-button").addClass('disabled');
+        var saveButton = this.$el.find(".save-button").addClass('disabled');
+        var cancelButton = this.$el.find(".cancel-button").addClass('disabled');
         if (type) {
             if (type === this.error_saving) {
                 this.$el.find(".message-status.error").addClass("is-shown");
-                // saveButton.removeClass("disabled");
-                // cancelButton.removeClass("disabled");
+                saveButton.removeClass("disabled");
+                cancelButton.removeClass("disabled");
             }
             else if (type === this.unsaved_changes) {
                 this.$el.find(".message-status.warning").addClass("is-shown");
-                // saveButton.removeClass("disabled");
-                // cancelButton.removeClass("disabled");
+                saveButton.removeClass("disabled");
+                cancelButton.removeClass("disabled");
             }
             else if (type === this.successful_changes)
                 this.$el.find(".message-status.confirm").addClass("is-shown");
@@ -136,8 +132,8 @@ CMS.Views.Settings.Advanced = CMS.Views.ValidatingView.extend({
         // disable the value entry until there's an acceptable key
         $(newEle).find('.course-advanced-policy-value').addClass('disabled');
         this.fieldToSelectorMap[this.new_key] = this.new_key;
-        // need to refind b/c replaceWith seems to copy rather than use the specific ele instance
-        var policyValueDivs = this.$el.find('#' + this.new_key).closest('li').find('.ace');
+        // need to re-find b/c replaceWith seems to copy rather than use the specific ele instance
+        var policyValueDivs = this.$el.find('#' + this.new_key).closest('li').find('.json');
         // only 1 but hey, let's take advantage of the context mechanism
         _.each(policyValueDivs, this.attachJSONEditor, this);
         this.showMessage(this.unsaved_changes);
@@ -201,8 +197,8 @@ CMS.Views.Settings.Advanced = CMS.Views.ValidatingView.extend({
             // update gui (sets all the ids etc)
             var newEle = this.template({key : newKey, value : JSON.stringify(this.model.get(newKey)) });
             $(event.currentTarget).closest('li').replaceWith(newEle);
-            // need to refind b/c replaceWith seems to copy rather than use the specific ele instance
-            var policyValueDivs = this.$el.find('#' + newKey).closest('li').find('.ace');
+            // need to re-find b/c replaceWith seems to copy rather than use the specific ele instance
+            var policyValueDivs = this.$el.find('#' + newKey).closest('li').find('.json');
             // only 1 but hey, let's take advantage of the context mechanism
             _.each(policyValueDivs, this.attachJSONEditor, this);
             

cms/static/sass/_settings.scss

@@ -550,10 +550,16 @@
     }
 
     .settings-advanced {
-      .ace {
-          height: 80px;
-          border: 1px solid #DDD;
-       }
+
+      //.CodeMirror {
+      //  border: 1px solid #eee;
+      //  height: auto;
+      //}
+      //.CodeMirror-scroll {
+      //  overflow-y: hidden;
+      //  overflow-x: auto;
+      //}
+
 
       // messages - should be synced up with global messages in the future
       .message {

common/static/js/vendor/CodeMirror/javascript.js

+CodeMirror.defineMode("javascript", function(config, parserConfig) {
+  var indentUnit = config.indentUnit;
+  var jsonMode = parserConfig.json;
+
+  // Tokenizer
+
+  var keywords = function(){
+    function kw(type) {return {type: type, style: "keyword"};}
+    var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
+    var operator = kw("operator"), atom = {type: "atom", style: "atom"};
+    return {
+      "if": A, "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
+      "return": C, "break": C, "continue": C, "new": C, "delete": C, "throw": C,
+      "var": kw("var"), "const": kw("var"), "let": kw("var"),
+      "function": kw("function"), "catch": kw("catch"),
+      "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
+      "in": operator, "typeof": operator, "instanceof": operator,
+      "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom
+    };
+  }();
+
+  var isOperatorChar = /[+\-*&%=<>!?|]/;
+
+  function chain(stream, state, f) {
+    state.tokenize = f;
+    return f(stream, state);
+  }
+
+  function nextUntilUnescaped(stream, end) {
+    var escaped = false, next;
+    while ((next = stream.next()) != null) {
+      if (next == end && !escaped)
+        return false;
+      escaped = !escaped && next == "\\";
+    }
+    return escaped;
+  }
+
+  // Used as scratch variables to communicate multiple values without
+  // consing up tons of objects.
+  var type, content;
+  function ret(tp, style, cont) {
+    type = tp; content = cont;
+    return style;
+  }
+
+  function jsTokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == '"' || ch == "'")
+      return chain(stream, state, jsTokenString(ch));
+    else if (/[\[\]{}\(\),;\:\.]/.test(ch))
+      return ret(ch);
+    else if (ch == "0" && stream.eat(/x/i)) {
+      stream.eatWhile(/[\da-f]/i);
+      return ret("number", "number");
+    }      
+    else if (/\d/.test(ch)) {
+      stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
+      return ret("number", "number");
+    }
+    else if (ch == "/") {
+      if (stream.eat("*")) {
+        return chain(stream, state, jsTokenComment);
+      }
+      else if (stream.eat("/")) {
+        stream.skipToEnd();
+        return ret("comment", "comment");
+      }
+      else if (state.reAllowed) {
+        nextUntilUnescaped(stream, "/");
+        stream.eatWhile(/[gimy]/); // 'y' is "sticky" option in Mozilla
+        return ret("regexp", "string-2");
+      }
+      else {
+        stream.eatWhile(isOperatorChar);
+        return ret("operator", null, stream.current());
+      }
+    }
+    else if (ch == "#") {
+        stream.skipToEnd();
+        return ret("error", "error");
+    }
+    else if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return ret("operator", null, stream.current());
+    }
+    else {
+      stream.eatWhile(/[\w\$_]/);
+      var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
+      return (known && state.kwAllowed) ? ret(known.type, known.style, word) :
+                     ret("variable", "variable", word);
+    }
+  }
+
+  function jsTokenString(quote) {
+    return function(stream, state) {
+      if (!nextUntilUnescaped(stream, quote))
+        state.tokenize = jsTokenBase;
+      return ret("string", "string");
+    };
+  }
+
+  function jsTokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = jsTokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ret("comment", "comment");
+  }
+
+  // Parser
+
+  var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true};
+
+  function JSLexical(indented, column, type, align, prev, info) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.prev = prev;
+    this.info = info;
+    if (align != null) this.align = align;
+  }
+
+  function inScope(state, varname) {
+    for (var v = state.localVars; v; v = v.next)
+      if (v.name == varname) return true;
+  }
+
+  function parseJS(state, style, type, content, stream) {
+    var cc = state.cc;
+    // Communicate our context to the combinators.
+    // (Less wasteful than consing up a hundred closures on every call.)
+    cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc;
+  
+    if (!state.lexical.hasOwnProperty("align"))
+      state.lexical.align = true;
+
+    while(true) {
+      var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
+      if (combinator(type, content)) {
+        while(cc.length && cc[cc.length - 1].lex)
+          cc.pop()();
+        if (cx.marked) return cx.marked;
+        if (type == "variable" && inScope(state, content)) return "variable-2";
+        return style;
+      }
+    }
+  }
+
+  // Combinator utils
+
+  var cx = {state: null, column: null, marked: null, cc: null};
+  function pass() {
+    for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
+  }
+  function cont() {
+    pass.apply(null, arguments);
+    return true;
+  }
+  function register(varname) {
+    var state = cx.state;
+    if (state.context) {
+      cx.marked = "def";
+      for (var v = state.localVars; v; v = v.next)
+        if (v.name == varname) return;
+      state.localVars = {name: varname, next: state.localVars};
+    }
+  }
+
+  // Combinators
+
+  var defaultVars = {name: "this", next: {name: "arguments"}};
+  function pushcontext() {
+    if (!cx.state.context) cx.state.localVars = defaultVars;
+    cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
+  }
+  function popcontext() {
+    cx.state.localVars = cx.state.context.vars;
+    cx.state.context = cx.state.context.prev;
+  }
+  function pushlex(type, info) {
+    var result = function() {
+      var state = cx.state;
+      state.lexical = new JSLexical(state.indented, cx.stream.column(), type, null, state.lexical, info)
+    };
+    result.lex = true;
+    return result;
+  }
+  function poplex() {
+    var state = cx.state;
+    if (state.lexical.prev) {
+      if (state.lexical.type == ")")
+        state.indented = state.lexical.indented;
+      state.lexical = state.lexical.prev;
+    }
+  }
+  poplex.lex = true;
+
+  function expect(wanted) {
+    return function expecting(type) {
+      if (type == wanted) return cont();
+      else if (wanted == ";") return pass();
+      else return cont(arguments.callee);
+    };
+  }
+
+  function statement(type) {
+    if (type == "var") return cont(pushlex("vardef"), vardef1, expect(";"), poplex);
+    if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
+    if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
+    if (type == "{") return cont(pushlex("}"), block, poplex);
+    if (type == ";") return cont();
+    if (type == "function") return cont(functiondef);
+    if (type == "for") return cont(pushlex("form"), expect("("), pushlex(")"), forspec1, expect(")"),
+                                      poplex, statement, poplex);
+    if (type == "variable") return cont(pushlex("stat"), maybelabel);
+    if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
+                                         block, poplex, poplex);
+    if (type == "case") return cont(expression, expect(":"));
+    if (type == "default") return cont(expect(":"));
+    if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
+                                        statement, poplex, popcontext);
+    return pass(pushlex("stat"), expression, expect(";"), poplex);
+  }
+  function expression(type) {
+    if (atomicTypes.hasOwnProperty(type)) return cont(maybeoperator);
+    if (type == "function") return cont(functiondef);
+    if (type == "keyword c") return cont(maybeexpression);
+    if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeoperator);
+    if (type == "operator") return cont(expression);
+    if (type == "[") return cont(pushlex("]"), commasep(expression, "]"), poplex, maybeoperator);
+    if (type == "{") return cont(pushlex("}"), commasep(objprop, "}"), poplex, maybeoperator);
+    return cont();
+  }
+  function maybeexpression(type) {
+    if (type.match(/[;\}\)\],]/)) return pass();
+    return pass(expression);
+  }
+    
+  function maybeoperator(type, value) {
+    if (type == "operator" && /\+\+|--/.test(value)) return cont(maybeoperator);
+    if (type == "operator") return cont(expression);
+    if (type == ";") return;
+    if (type == "(") return cont(pushlex(")"), commasep(expression, ")"), poplex, maybeoperator);
+    if (type == ".") return cont(property, maybeoperator);
+    if (type == "[") return cont(pushlex("]"), expression, expect("]"), poplex, maybeoperator);
+  }
+  function maybelabel(type) {
+    if (type == ":") return cont(poplex, statement);
+    return pass(maybeoperator, expect(";"), poplex);
+  }
+  function property(type) {
+    if (type == "variable") {cx.marked = "property"; return cont();}
+  }
+  function objprop(type) {
+    if (type == "variable") cx.marked = "property";
+    if (atomicTypes.hasOwnProperty(type)) return cont(expect(":"), expression);
+  }
+  function commasep(what, end) {
+    function proceed(type) {
+      if (type == ",") return cont(what, proceed);
+      if (type == end) return cont();
+      return cont(expect(end));
+    }
+    return function commaSeparated(type) {
+      if (type == end) return cont();
+      else return pass(what, proceed);
+    };
+  }
+  function block(type) {
+    if (type == "}") return cont();
+    return pass(statement, block);
+  }
+  function vardef1(type, value) {
+    if (type == "variable"){register(value); return cont(vardef2);}
+    return cont();
+  }
+  function vardef2(type, value) {
+    if (value == "=") return cont(expression, vardef2);
+    if (type == ",") return cont(vardef1);
+  }
+  function forspec1(type) {
+    if (type == "var") return cont(vardef1, forspec2);
+    if (type == ";") return pass(forspec2);
+    if (type == "variable") return cont(formaybein);
+    return pass(forspec2);
+  }
+  function formaybein(type, value) {
+    if (value == "in") return cont(expression);
+    return cont(maybeoperator, forspec2);
+  }
+  function forspec2(type, value) {
+    if (type == ";") return cont(forspec3);
+    if (value == "in") return cont(expression);
+    return cont(expression, expect(";"), forspec3);
+  }
+  function forspec3(type) {
+    if (type != ")") cont(expression);
+  }
+  function functiondef(type, value) {
+    if (type == "variable") {register(value); return cont(functiondef);}
+    if (type == "(") return cont(pushlex(")"), pushcontext, commasep(funarg, ")"), poplex, statement, popcontext);
+  }
+  function funarg(type, value) {
+    if (type == "variable") {register(value); return cont();}
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      return {
+        tokenize: jsTokenBase,
+        reAllowed: true,
+        kwAllowed: true,
+        cc: [],
+        lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
+        localVars: parserConfig.localVars,
+        context: parserConfig.localVars && {vars: parserConfig.localVars},
+        indented: 0
+      };
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if (!state.lexical.hasOwnProperty("align"))
+          state.lexical.align = false;
+        state.indented = stream.indentation();
+      }
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      if (type == "comment") return style;
+      state.reAllowed = !!(type == "operator" || type == "keyword c" || type.match(/^[\[{}\(,;:]$/));
+      state.kwAllowed = type != '.';
+      return parseJS(state, style, type, content, stream);
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != jsTokenBase) return 0;
+      var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical,
+          type = lexical.type, closing = firstChar == type;
+      if (type == "vardef") return lexical.indented + 4;
+      else if (type == "form" && firstChar == "{") return lexical.indented;
+      else if (type == "stat" || type == "form") return lexical.indented + indentUnit;
+      else if (lexical.info == "switch" && !closing)
+        return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
+      else if (lexical.align) return lexical.column + (closing ? 0 : 1);
+      else return lexical.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricChars: ":{}"
+  };
+});
+
+CodeMirror.defineMIME("text/javascript", "javascript");
+CodeMirror.defineMIME("application/json", {name: "javascript", json: true});