Autoindent for XML and HTML modes

src/ace/mode/Html.js

@@ -17,8 +17,9 @@ ace.inherits(ace.mode.Html, ace.mode.Text);
     };
 
     this.getNextLineIndent = function(state, line, tab) {
+        var self = this;
         return this.$delegate("getNextLineIndent", arguments, function() {
-            return "";
+            return self.$getIndent(line);
         });
     };
 

src/ace/mode/Xml.js

@@ -4,3 +4,11 @@ ace.mode.Xml = function() {
     this.$tokenizer = new ace.Tokenizer(new ace.mode.XmlHighlightRules().getRules());
 };
 ace.inherits(ace.mode.Xml, ace.mode.Text);
+
+(function() {
+
+    this.getNextLineIndent = function(state, line, tab) {
+        return this.$getIndent(line);
+    };
+
+}).call(ace.mode.Xml.prototype);

src/test/ace/mode/HtmlTest.js

@@ -0,0 +1,20 @@
+var HtmlTest = new TestCase("mode.HtmlTest", {
+
+    setUp : function() {
+        this.mode = new ace.mode.Html();
+    },
+
+    "test: toggle comment lines should not do anything" : function() {
+        var doc = new ace.Document(["  abc", "cde", "fg"]);
+
+        var range = new ace.Range(0, 3, 1, 1);
+        var comment = this.mode.toggleCommentLines("start", doc, range);
+        assertEquals(["  abc", "cde", "fg"].join("\n"), doc.toString());
+    },
+
+    "test: next line indent should be the same as the current line indent" : function() {
+        assertEquals("     ", this.mode.getNextLineIndent("start", "     abc"));
+        assertEquals("", this.mode.getNextLineIndent("start", "abc"));
+        assertEquals("\t", this.mode.getNextLineIndent("start", "\tabc"));
+    }
+});

src/test/ace/mode/XmlTest.js

@@ -19,5 +19,11 @@ var XmlTest = new TestCase("mode.XmlTest", {
         var range = new ace.Range(0, 3, 1, 1);
         var comment = this.mode.toggleCommentLines("start", doc, range);
         assertEquals(["  abc", "cde", "fg"].join("\n"), doc.toString());
+    },
+
+    "test: next line indent should be the same as the current line indent" : function() {
+        assertEquals("     ", this.mode.getNextLineIndent("start", "     abc"));
+        assertEquals("", this.mode.getNextLineIndent("start", "abc"));
+        assertEquals("\t", this.mode.getNextLineIndent("start", "\tabc"));
     }
 });