Livewire Component Title macro

AppServiceProvider.php

<?php

namespace App\Providers;

use App\Macros\ViewMacros; 
use Illuminate\Support\ServiceProvider;
use Illuminate\View\View; 

class AppServiceProvider extends ServiceProvider
{
    public function boot()
    {
        View::mixin(new ViewMacros()); 
    } 
}

Examples

  public function render()
  {
      // default layout
      return view('livewire.view')->title('My Title');
      
      // custom layout
      // the layout must become first
      return view('livewire.view')->layout('layouts.my-layout')->title('My Title');
  }

ViewMacros.php

<?php

namespace App\Macros;

class ViewMacros
{
    public function title()
    {
        return function (string $title) {
            data_set($this->livewireLayout, 'params.title', $title);

            return $this;
        };
    }
}

ViewTitleMacroTest.php

<?php

namespace Tests\Unit\ViewMacro;

use Illuminate\Support\Facades\Route;
use Livewire\{Component, CreateBladeView, Livewire};
use Tests\TestCase;

class ViewTitleMacroTest extends TestCase
{
    /** @test */
    public function it_should_render_title_inside_layout()
    {
        Livewire::component(TitledComponent::class);

        Route::get('/foo', TitledComponent::class);

        $this->get('/foo')
            ->assertSee('My Title')
            ->assertSee('Titled Component')
            ->assertDontSee('Without Title');
    }
}

class TitledComponent extends Component
{
    public function render()
    {
        return app('view')
            ->make(CreateBladeView::fromString('<div>Titled Component</div>'))
            ->layout('layouts.guest') // only for testing purposes
            ->title('My Title');
    }
}