protected FormBuilder::elementTriggeredScriptedSubmission($element, FormStateInterface &$form_state)
Detects if an element triggered the form submission via Ajax.
This detects button or non-button controls that trigger a form submission via Ajax or some other scriptable environment. These environments can set the special input key '_triggering_element_name' to identify the triggering element. If the name alone doesn't identify the element uniquely, the input key '_triggering_element_value' may also be set to require a match on element value. An example where this is needed is if there are several // buttons all named 'op', and only differing in their value.
File
- core/lib/Drupal/Core/Form/FormBuilder.php, line 1314
Class
- FormBuilder
- Provides form building and processing.
Namespace
Drupal\Core\Form
Code
1 2 3 4 5 6 7 8 9 | protected function elementTriggeredScriptedSubmission($element, FormStateInterface &$form_state) { $input = $form_state->getUserInput(); if (!empty($input['_triggering_element_name']) && $element['#name'] == $input['_triggering_element_name']) { if (empty($input['_triggering_element_value']) || $input['_triggering_element_value'] == $element['#value']) { return TRUE; } } return FALSE;} |
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