Merge pull request #78 from Bird87ZA/add-has-step-checks

Add has step checks

docs/usage/navigating-steps.md

@@ -60,6 +60,13 @@ You can also call it in your view.
 </div>
 ```
 
+You can also check if a next or previous step exists directly from the step component.
+
+```blade
+$this->hasNextStep();
+$this->hasPreviousStep();
+```
+
 ## Start at a specific step
 
 If you want the wizard to display a specific step when it is rendered first, you can pass the step name to the `show-step` property.

src/Components/StepComponent.php

@@ -32,6 +32,16 @@ public function showStep(string $stepName)
         $this->emitUp('showStep', $stepName, $this->state()->currentStep());
     }
 
+    public function hasPreviousStep()
+    {
+        return $this->allStepNames[0] !== Livewire::getAlias(static::class);
+    }
+
+    public function hasNextStep()
+    {
+        return end($this->allStepNames) !== Livewire::getAlias(static::class);
+    }
+
     public function stepInfo(): array
     {
         return [];

tests/WizardTest.php

@@ -142,3 +142,31 @@
 
     assertMatchesHtmlSnapshot($navigationHtml);
 });
+
+it('has the correct has step states', function () {
+    // Set up the step names array to match the expected steps
+    $stepNames = [
+        Livewire::getAlias(FirstStepComponent::class),
+        Livewire::getAlias(SecondStepComponent::class),
+        Livewire::getAlias(ThirdStepComponent::class),
+    ];
+
+    // Create instances of each step component and set the allStepNames property on them
+    $this->firstStep = new FirstStepComponent();
+    $this->firstStep->allStepNames = $stepNames;
+
+    $this->secondStep = new SecondStepComponent();
+    $this->secondStep->allStepNames = $stepNames;
+
+    $this->thirdStep = new ThirdStepComponent();
+    $this->thirdStep->allStepNames = $stepNames;
+
+    expect($this->firstStep->hasPreviousStep())->toBeFalse();
+    expect($this->firstStep->hasNextStep())->toBeTrue();
+
+    expect($this->secondStep->hasPreviousStep())->toBeTrue();
+    expect($this->secondStep->hasNextStep())->toBeTrue();
+
+    expect($this->thirdStep->hasPreviousStep())->toBeTrue();
+    expect($this->thirdStep->hasNextStep())->toBeFalse();
+});