Merge pull request #9996 from signify-nz/enh/gridfield-readonly-transformation

ENH Provide ways to modify read-only gridfields globally.

src/Forms/GridField/GridField.php

@@ -53,6 +53,28 @@ class GridField extends FormField
         'gridFieldAlterAction',
     ];
 
+    /**
+     * Default globally configured readonly components.
+     *
+     * @see $readonlyComponents
+     * @var array
+     */
+    private static $default_readonly_components = [
+        GridField_ActionMenu::class,
+        GridFieldConfig_RecordViewer::class,
+        GridFieldButtonRow::class,
+        GridFieldDataColumns::class,
+        GridFieldDetailForm::class,
+        GridFieldLazyLoader::class,
+        GridFieldPageCount::class,
+        GridFieldPaginator::class,
+        GridFieldFilterHeader::class,
+        GridFieldSortableHeader::class,
+        GridFieldToolbarHeader::class,
+        GridFieldViewButton::class,
+        GridState_Component::class,
+    ];
+
     /**
      * Data source.
      *
@@ -114,21 +136,7 @@ class GridField extends FormField
      *
      * @var array
      */
-    protected $readonlyComponents = [
+    protected $readonlyComponents = [];
-        GridField_ActionMenu::class,
-        GridFieldConfig_RecordViewer::class,
-        GridFieldButtonRow::class,
-        GridFieldDataColumns::class,
-        GridFieldDetailForm::class,
-        GridFieldLazyLoader::class,
-        GridFieldPageCount::class,
-        GridFieldPaginator::class,
-        GridFieldFilterHeader::class,
-        GridFieldSortableHeader::class,
-        GridFieldToolbarHeader::class,
-        GridFieldViewButton::class,
-        GridState_Component::class,
-    ];
 
     /**
      * Pattern used for looking up
@@ -145,6 +153,9 @@ class GridField extends FormField
     {
         parent::__construct($name, $title, null);
 
+        // Set readonly components for this gridfield.
+        $this->setReadonlyComponents($this->config()->get('default_readonly_components'));
+
         $this->name = $name;
 
         if ($dataList) {
@@ -262,6 +273,8 @@ class GridField extends FormField
             $copyConfig->addComponent(GridFieldViewButton::create());
         }
 
+        $copy->extend('afterPerformReadonlyTransformation', $this);
+
         return $copy;
     }