inspired by SunboX s PHP support and Fabian Jakobs - thanks!

.c9settings.xml

@@ -0,0 +1 @@
+<settings version="0.0.2"   ><auto><configurations   /><panel>{"ext/editors/editors":{"parent":{"visible":2,"flex":1},"visible":2,"flex":1},"ext/tree/tree":{"parent":{"visible":2,"width":323},"visible":true,"flex":3,"state":"normal"},"ext/console/console":{"parent":{"visible":2,"height":"41"},"visible":false,"flex":1}}</panel><tree>["folder[1]","folder[1]/file[3]","folder[1]/folder[2]","folder[1]/folder[2]/folder[1]","folder[1]/folder[2]/folder[1]/folder[4]","folder[1]/folder[2]/folder[1]/folder[4]/file[18]","folder[1]/folder[2]/folder[1]/folder[4]/file[2]","folder[1]/folder[2]/folder[1]/folder[4]/file[3]"]</tree><files active="/tomtasche/ace/workspace/lib/ace/mode/java.js"><file path="/tomtasche/ace/workspace/lib/ace/mode/java.js" type="file" size="11" name="java.js" contenttype="application/javascript; charset=utf-8" creationdate="" lockable="false" hidden="false" executable="false" scriptname="/home/ide_tomtasche/workspaces/ace/lib/ace/mode/java.js"/><file path="/tomtasche/ace/workspace/lib/ace/mode/javascript.js" type="file" size="5785" name="javascript.js" contenttype="application/javascript; charset=utf-8" creationdate="" lockable="false" hidden="false" executable="false" scriptname="/home/ide_tomtasche/workspaces/ace/lib/ace/mode/javascript.js"/></files></auto><general name="General" page="pgSettingsGeneral" saveallbeforerun="true"/><editors name="Editor" page="pgSettingsEditors"><code name="Code Editor" overwrite="false" selectstyle="line" activeline="true" showinvisibles="false" showprintmargin="true" printmargincolumn="80" softtabs="true" tabsize="4" scrollspeed="2"/></editors></settings>

demo/startup.js

@@ -52,6 +52,7 @@ exports.launch = function(env) {
     var XmlMode = require("ace/mode/xml").Mode;
     var PythonMode = require("ace/mode/python").Mode;
     var PhpMode = require("ace/mode/php").Mode;
+    var JavaMode = require("ace/mode/java").Mode;
     var TextMode = require("ace/mode/text").Mode;
     var UndoManager = require("ace/undomanager").UndoManager;
 
@@ -101,6 +102,10 @@ exports.launch = function(env) {
     docs.php = new EditSession(document.getElementById("phptext").innerHTML);
     docs.php.setMode(new PhpMode());
     docs.php.setUndoManager(new UndoManager());
+    
+    docs.java = new EditSession(document.getElementById("javatext").innerHTML);
+    docs.java.setMode(new JavaMode());
+    docs.java.setUndoManager(new UndoManager());
 
 
     var container = document.getElementById("editor");
@@ -113,7 +118,8 @@ exports.launch = function(env) {
         css: new CssMode(),
         javascript: new JavaScriptMode(),
         python: new PythonMode(),
-        php: new PhpMode()
+        php: new PhpMode(),
+        java: new JavaMode()
     };
 
     function getMode() {
@@ -146,6 +152,9 @@ exports.launch = function(env) {
         else if (mode instanceof PhpMode) {
             modeEl.value = "php";
         }
+        else if (mode instanceof JavaMode) {
+            modeEl.value = "java";
+        }
         else {
             modeEl.value = "text";
         }
@@ -271,6 +280,8 @@ exports.launch = function(env) {
                     mode = "python";
                 } else if (/^.*\.php$/i.test(file.name)) {
                     mode = "php";
+                } else if (/^.*\.java$/i.test(file.name)) {
+                    mode = "java";
                 }
 
                 env.editor.onTextInput(reader.result);

editor.html

@@ -19,6 +19,7 @@
           <option value="css">CSS Document</option>
           <option value="python">Python Document</option>
           <option value="php">PHP Document</option>
+          <option value="java">Java Document</option>
           <option value="plain">Text Document</option>
         </select>
       </td>
@@ -72,6 +73,7 @@
           <option value="css">CSS</option>
           <option value="python">Python</option>
           <option value="php">PHP</option>
+          <option value="java">Java</option>
         </select>
       </td>
       <td align="right">

lib/ace/mode/java.js

@@ -0,0 +1,95 @@
+define(function(require, exports, module) {
+
+var oop = require("pilot/oop");
+var TextMode = require("ace/mode/text").Mode;
+var Tokenizer = require("ace/tokenizer").Tokenizer;
+var JavaHighlightRules = require("ace/mode/java_highlight_rules").JavaHighlightRules;
+var MatchingBraceOutdent = require("ace/mode/matching_brace_outdent").MatchingBraceOutdent;
+var Range = require("ace/range").Range;
+var WorkerClient = require("ace/worker/worker_client").WorkerClient;
+
+var Mode = function() {
+    this.$tokenizer = new Tokenizer(new JavaHighlightRules().getRules());
+    this.$outdent = new MatchingBraceOutdent();
+};
+oop.inherits(Mode, TextMode);
+
+(function() {
+
+    this.toggleCommentLines = function(state, doc, startRow, endRow) {
+        var outdent = true;
+        var outentedRows = [];
+        var re = /^(\s*)\/\//;
+
+        for (var i=startRow; i<= endRow; i++) {
+            if (!re.test(doc.getLine(i))) {
+                outdent = false;
+                break;
+            }
+        }
+
+        if (outdent) {
+            var deleteRange = new Range(0, 0, 0, 0);
+            for (var i=startRow; i<= endRow; i++)
+            {
+                var line = doc.getLine(i).replace(re, "$1");
+                deleteRange.start.row = i;
+                deleteRange.end.row = i;
+                deleteRange.end.column = line.length + 2;
+                doc.replace(deleteRange, line);
+            }
+            return -2;
+        }
+        else {
+            return doc.indentRows(startRow, endRow, "//");
+        }
+    };
+
+    this.getNextLineIndent = function(state, line, tab) {
+        var indent = this.$getIndent(line);
+
+        var tokenizedLine = this.$tokenizer.getLineTokens(line, state);
+        var tokens = tokenizedLine.tokens;
+        var endState = tokenizedLine.state;
+
+        if (tokens.length && tokens[tokens.length-1].type == "comment") {
+            return indent;
+        }
+        
+        if (state == "start") {
+            var match = line.match(/^.*[\{\(\[]\s*$/);
+            if (match) {
+                indent += tab;
+            }
+        } else if (state == "doc-start") {
+            if (endState == "start") {
+                return "";
+            }
+            var match = line.match(/^\s*(\/?)\*/);
+            if (match) {
+                if (match[1]) {
+                    indent += " ";
+                }
+                indent += "* ";
+            }
+        }
+
+        return indent;
+    };
+
+    this.checkOutdent = function(state, line, input) {
+        return this.$outdent.checkOutdent(line, input);
+    };
+
+    this.autoOutdent = function(state, doc, row) {
+        return this.$outdent.autoOutdent(doc, row);
+    };
+    
+    this.createWorker = function(session) {
+        return null;
+    };
+
+}).call(Mode.prototype);
+
+exports.Mode = Mode;
+});

lib/ace/mode/java_worker.js

@@ -0,0 +1,46 @@
+define(function(require, exports, module) {
+    
+var oop = require("pilot/oop");
+var Mirror = require("ace/worker/mirror").Mirror;
+var lint = require("ace/worker/jslint").JSLINT;
+    
+var JavaScriptWorker = exports.JavaScriptWorker = function(sender) {
+    Mirror.call(this, sender);
+    this.setTimeout(500);
+};
+
+oop.inherits(JavaScriptWorker, Mirror);
+
+(function() {
+    
+    this.onUpdate = function() {
+        var value = this.doc.getValue();
+        
+//        var start = new Date();
+        var parser = require("ace/narcissus/jsparse");
+        try {
+            parser.parse(value);
+        } catch(e) {
+//            console.log("narcissus")
+//            console.log(e);
+            sender.emit("narcissus", {
+                row: e.lineno-1,
+                column: null, // TODO convert e.cursor
+                text: e.message,
+                type: "error"
+            });
+            return;
+        } finally {
+//            console.log("parse time: " + (new Date() - start));
+        }
+        
+//        var start = new Date();
+//        console.log("jslint")
+        lint(value, {undef: false, onevar: false, passfail: false});
+        this.sender.emit("jslint", lint.errors);        
+//        console.log("lint time: " + (new Date() - start));
+    }
+    
+}).call(JavaScriptWorker.prototype);
+
+});