Fixed namespacing + added PSR-4 info

code/GridFieldAddExistingSearchButton.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\Forms\GridField\GridField_HTMLProvider;
 use SilverStripe\Forms\GridField\GridField_URLHandler;
 use SilverStripe\ORM\SS_List;

code/GridFieldAddExistingSearchHandler.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\Control\Controller;
 use SilverStripe\Control\RequestHandler;
 use SilverStripe\Forms\FieldList;

code/GridFieldAddNewInlineButton.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\Core\Convert;
 use SilverStripe\Core\Object;
 use SilverStripe\Forms\Form;

code/GridFieldAddNewMultiClass.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\Control\Controller;
 use SilverStripe\Control\SS_HTTPResponse_Exception;
 use SilverStripe\Core\ClassInfo;

code/GridFieldAddNewMultiClassHandler.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\Control\Controller;
 use SilverStripe\Forms\GridField\GridFieldDetailForm_ItemRequest;
 

code/GridFieldEditableColumns.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\Control\Controller;
 use SilverStripe\Control\SS_HTTPResponse_Exception;
 use SilverStripe\Core\Object;

code/GridFieldExtensions.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\View\Requirements;
 
 /**

code/GridFieldExternalLink.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\Forms\GridField\GridFieldDataColumns;
 use SilverStripe\View\ArrayData;
 

code/GridFieldOrderableRows.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\Control\Controller;
 use SilverStripe\Control\RequestHandler;
 use SilverStripe\Core\ClassInfo;

code/GridFieldRequestHandler.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\Admin\LeftAndMain;
 use SilverStripe\Control\Controller;
 use SilverStripe\Control\RequestHandler;

code/GridFieldTitleHeader.php

@@ -1,5 +1,7 @@
 <?php
 
+namespace SilverStripe\Forms\GridField;
+
 use SilverStripe\Forms\GridField\GridField_HTMLProvider;
 use SilverStripe\ORM\ArrayList;
 use SilverStripe\View\ArrayData;

composer.json

@@ -34,6 +34,9 @@
 	"replace": {
 		"ajshort/silverstripe-gridfieldextensions": "self.version"
 	},
+	"autoload": {
+		"psr-4": {"SilverStripe\\Forms\\GridField\\": "code/"}
+	},
 	"prefer-stable": true,
-  	"minimum-stability": "dev"
+	"minimum-stability": "dev"
 }