First thought solution for #7

Might not be perfect because of multiple cursor placement

lib/atom-beautify.js

@@ -74,6 +74,30 @@ function cleanOptions(data, types) {
   return data;
 }
 
+function getCursors(editor) {
+  var cursors = editor.getCursors();
+  var posArray = [];
+  for (var idx = 0; idx < cursors.length; idx++) {
+    var cursor = cursors[idx];
+    var bufferPosition = cursor.getBufferPosition();
+    console.log('order, row:', idx, bufferPosition.row);
+    posArray.push([bufferPosition.row, bufferPosition.column]);
+  }
+  return posArray;
+}
+
+function setCursors(editor, posArray) {
+  for (var idx = posArray.length - 1; idx >= 0; idx--) {
+    var bufferPosition = posArray[idx];
+    console.log('setting row:', bufferPosition[0]);
+    if (idx === posArray.length - 1) {
+      editor.setCursorBufferPosition(bufferPosition);
+      continue;
+    }
+    editor.addCursorAtBufferPosition(bufferPosition);
+  }
+}
+
 function beautify() {
   var text;
   var editor = atom.workspace.getActiveEditor();
@@ -103,6 +127,7 @@ function beautify() {
   }
   // Override the indenting options from the editor
   beautifyOptions = extend(collectedConfig, beautifyOptions);
+  var posArray = getCursors(editor);
 
   if (isSelection) {
     text = editor.getSelectedText();
@@ -111,18 +136,18 @@ function beautify() {
   }
 
   switch (editor.getGrammar().name) {
-    case 'JavaScript':
-      text = beautifyJS(text, beautifyOptions);
-      break;
-    case 'HTML':
-    case 'XML':
-      text = beautifyHTML(text, beautifyOptions);
-      break;
-    case 'CSS':
-      text = beautifyCSS(text, beautifyOptions);
-      break;
-    default:
-      return;
+  case 'JavaScript':
+    text = beautifyJS(text, beautifyOptions);
+    break;
+  case 'HTML':
+  case 'XML':
+    text = beautifyHTML(text, beautifyOptions);
+    break;
+  case 'CSS':
+    text = beautifyCSS(text, beautifyOptions);
+    break;
+  default:
+    return;
   }
 
   if (isSelection) {
@@ -133,10 +158,11 @@ function beautify() {
   } else {
     editor.setText(text);
   }
+  setCursors(editor, posArray);
 }
 
 function handleSafeEvent() {
-  atom.workspace.eachEditor(function(editor) {
+  atom.workspace.eachEditor(function (editor) {
     var buffer = editor.getBuffer();
     plugin.unsubscribe(buffer);
 
@@ -151,10 +177,10 @@ plugin.configDefaults = {
   beautifyOnSave: false
 };
 
-plugin.activate = function() {
+plugin.activate = function () {
   handleSafeEvent();
   plugin.subscribe(atom.config.observe(
     'atom-beautify.beautifyOnSave',
     handleSafeEvent));
   return atom.workspaceView.command('beautify', beautify);
-};
+};