Converts support notations for a form callback to a valid callable.

Specifically, supports methods on the form/callback object as strings when they start with ::, for example "::submitForm()".

Parameters

string|array $callback: The callback.

Return value

array|string A valid callable.

2 methods override FormStateInterface::prepareCallback()

FormState::prepareCallback in core/lib/Drupal/Core/Form/FormState.php

Converts support notations for a form callback to a valid callable.

FormStateDecoratorBase::prepareCallback in core/lib/Drupal/Core/Form/FormStateDecoratorBase.php

Converts support notations for a form callback to a valid callable.

File

core/lib/Drupal/Core/Form/FormStateInterface.php, line 588

Class

FormStateInterface

Provides an interface for an object containing the current state of a form.

Namespace

Drupal\Core\Form

Code

public function prepareCallback($callback);

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