use mode delegates in PHP

fixes #2197

lib/ace/mode/php.js

@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2010, Ajax.org B.V.
  * All rights reserved.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *     * Redistributions of source code must retain the above copyright
@@ -14,7 +14,7 @@
  *     * Neither the name of Ajax.org B.V. nor the
  *       names of its contributors may be used to endorse or promote products
  *       derived from this software without specific prior written permission.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
@@ -41,8 +41,11 @@ var WorkerClient = require("../worker/worker_client").WorkerClient;
 var CstyleBehaviour = require("./behaviour/cstyle").CstyleBehaviour;
 var CStyleFoldMode = require("./folding/cstyle").FoldMode;
 var unicode = require("../unicode");
+var HtmlMode = require("./html").Mode;
+var JavaScriptMode = require("./javascript").Mode;
+var CssMode = require("./css").Mode;
 
-var Mode = function(opts) {
+var PhpMode = function(opts) {
     this.inlinePhp = opts && opts.inline;
     var HighlightRules = this.inlinePhp ? PhpLangHighlightRules : PhpHighlightRules;
     this.HighlightRules = HighlightRules;
@@ -50,7 +53,18 @@ var Mode = function(opts) {
     this.$behaviour = new CstyleBehaviour();
     this.foldingRules = new CStyleFoldMode();
 };
-oop.inherits(Mode, TextMode);
+oop.inherits(PhpMode, TextMode);
+
+var Mode = function() {
+    HtmlMode.call(this);
+    this.HighlightRules = PhpHighlightRules;
+    this.createModeDelegates({
+        "js-": JavaScriptMode,
+        "css-": CssMode,
+        "php-": PhpMode
+    });
+};
+oop.inherits(Mode, HtmlMode);
 
 (function() {
 
@@ -60,7 +74,7 @@ oop.inherits(Mode, TextMode);
         + unicode.packages.Nd
         + unicode.packages.Pc + "\_]+", "g"
     );
-    
+
     this.nonTokenRe = new RegExp("^(?:[^"
         + unicode.packages.L
         + unicode.packages.Mn + unicode.packages.Mc
@@ -68,7 +82,7 @@ oop.inherits(Mode, TextMode);
         + unicode.packages.Pc + "\_]|\s])+", "g"
     );
 
-       
+
     this.lineCommentStart = ["//", "#"];
     this.blockComment = {start: "/*", end: "*/"};
 
@@ -106,17 +120,19 @@ oop.inherits(Mode, TextMode);
     };
 
     this.checkOutdent = function(state, line, input) {
-        return this.$outdent.checkOutdent(line, input);
+        if (this.$outdent)
+            return this.$outdent.checkOutdent(line, input);
     };
 
     this.autoOutdent = function(state, doc, row) {
-        this.$outdent.autoOutdent(doc, row);
+        if (this.$outdent)
+            this.$outdent.autoOutdent(doc, row);
     };
 
     this.createWorker = function(session) {
         var worker = new WorkerClient(["ace"], "ace/mode/php_worker", "PhpWorker");
         worker.attachToDocument(session.getDocument());
-        
+
         if (this.inlinePhp)
             worker.call("setOptions", [{inline: true}]);