added event dispatch on column selection with test

src/Events/ColumnsSelected.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace Rappasoft\LaravelLivewireTables\Events;
+
+use Illuminate\Queue\SerializesModels;
+use Illuminate\Foundation\Events\Dispatchable;
+use JohnDoe\BlogPackage\Models\Post;
+
+class ColumnsSelected
+{
+    use Dispatchable, SerializesModels;
+
+    public $columns;
+    public $key;
+
+    public function __construct($key, $columns)
+    {
+        $this->key = $key;
+        $this->columns = $columns;
+    }
+
+
+}

src/Traits/WithColumnSelect.php

@@ -4,6 +4,8 @@
 
 use Rappasoft\LaravelLivewireTables\Traits\Configuration\ColumnSelectConfiguration;
 use Rappasoft\LaravelLivewireTables\Traits\Helpers\ColumnSelectHelpers;
+use Rappasoft\LaravelLivewireTables\Events\ColumnsSelected;
+use Illuminate\Support\Facades\Event;
 
 trait WithColumnSelect
 {
@@ -58,13 +60,15 @@ public function selectAllColumns()
     {
         $this->{$this->tableName}['columns'] = [];
         $this->forgetColumnSelectSession();
+        event(new ColumnsSelected($this->getColumnSelectSessionKey(), $this->selectedColumns));
     }
 
     public function deselectAllColumns()
     {
         $this->{$this->tableName}['columns'] = [];
         $this->selectedColumns = [];
         session([$this->getColumnSelectSessionKey() => []]);
+        event(new ColumnsSelected($this->getColumnSelectSessionKey(), $this->selectedColumns));
     }
 
     public function updatedSelectedColumns(): void
@@ -75,6 +79,7 @@ public function updatedSelectedColumns(): void
         } else {
             $this->{$this->tableName}['columns'] = $this->selectedColumns;
             session([$this->getColumnSelectSessionKey() => $this->{$this->tableName}['columns']]);
+            event(new ColumnsSelected($this->getColumnSelectSessionKey(), $this->selectedColumns));
         }
     }
 

tests/Events/ColumnsSelectedTest.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Rappasoft\LaravelLivewireTables\Events;
+
+use Rappasoft\LaravelLivewireTables\Tests\TestCase;
+use Rappasoft\LaravelLivewireTables\Events\ColumnsSelected;
+use Illuminate\Support\Facades\Event;
+
+
+class ColumnSelectedTest extends TestCase
+{
+
+  /** @test */
+  function an_event_is_emitted_when_a_column_selection_are_updated()
+  {
+      Event::fake([
+        ColumnsSelected::class
+        ]);
+
+      $test['columns'] = $this->basicTable->selectedColumns;
+      $test['key'] = $this->basicTable->getDataTableFingerprint().'-columnSelectEnabled';
+
+      // Select all columns to test event trigger
+      $this->basicTable->selectAllColumns();
+
+      Event::assertDispatched(ColumnsSelected::class, function ($event) use ($test) {
+          return ($event->columns === $test['columns'] && $event->key === $test['key']);
+      });
+  }
+}