function color_palette_color_value

Determines the value for a palette color field.

Parameters

$element: The form element whose value is being populated.

$input: The incoming input to populate the form element. If this is FALSE, the element's default value should be returned.

$form_state: A keyed array containing the current state of the form.

Return value

The data that will appear in the $form_state['values'] collection for this: element. Return nothing to use the default.

File

core/modules/color/color.module, line 441

Allows users to change the color scheme of themes.

Code

function color_palette_color_value($element, $input = FALSE, $form_state = array()) {
  // If we suspect a possible cross-site request forgery attack, only accept
  // hexadecimal CSS color strings from user input, to avoid problems when this
  // value is used in the JavaScript preview.
  if ($input !== FALSE) {
    // Start with the provided value for this textfield, and validate that if
    // necessary, falling back on the default value.
    $value = form_type_textfield_value($element, $input, $form_state);
    if (!$value || !isset($form_state['complete form']['#token']) || color_valid_hexadecimal_string($value) || backdrop_valid_token($form_state['values']['form_token'], $form_state['complete form']['#token'])) {
      return $value;
    }
    else {
      return $element['#default_value'];
    }
  }
}