Problem/Motivation

If an form element of '#type' => 'color' receives an empty value it falls back to black:

    // Default to black if no value is given.
    // @see http://www.w3.org/TR/html5/number-state.html#color-state
    if ($value === '') {
      $form_state->setValueForElement($element, '#000000');
    }

- \Drupal\Core\Render\Element\Color::validateColor()

(No need to follow that link, by the way, it's a 404. :-/)

That means it's not possible to use the color input for an input element. For example the Rotate image effect has a configurable Background color, but that is optional, to allow for transparent images. That cannot use '#type' => 'color' due to this problem.

Proposed resolution

?

Remaining tasks

User interface changes

API changes

Data model changes

Comments

tstoeckler created an issue. See original summary.

mgoncalves’s picture

mgoncalves CreditAttribution: mgoncalves at CI&T commented
Assigned: Unassigned » mgoncalves

Working on it.

mgoncalves’s picture

mgoncalves CreditAttribution: mgoncalves at CI&T commented

Hello @tstoeckler,

According with documentation of W3 Color Type, the value attribute, must have a value.

Could you provide more information about the issue ?

Thanks you.

mgoncalves’s picture

mgoncalves CreditAttribution: mgoncalves at CI&T commented
Assigned: mgoncalves » Unassigned

Version: 8.4.x-dev » 8.5.x-dev

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Version: 9.5.x-dev » 10.1.x-dev

Drupal 9.5.0-beta2 and Drupal 10.0.0-beta2 were released on September 29, 2022, which means new developments and disruptive changes should now be targeted for the 10.1.x-dev branch. For more information see the Drupal core minor version schedule and the Allowed changes during the Drupal core release cycle.

DanielVeza’s picture

DanielVeza
he/him
Location Brisbane, AU
CreditAttribution: DanielVeza as a volunteer and at PreviousNext commented
Status: Active » Closed (outdated)
Issue tags: +Bug Smash Initiative

Thanks for opening an issue!

Color was removed from Drupal 10 and this has had no activity in 6 years. Marking as closed.

dpi’s picture

dpi
Location Perth, Australia
CreditAttribution: dpi as a volunteer commented
Status: Closed (outdated) » Active

The color render element is still in core.

Version: 10.1.x-dev » 11.x-dev

Drupal core is moving towards using a “main” branch. As an interim step, a new 11.x branch has been opened, as Drupal.org infrastructure cannot currently fully support a branch named main. New developments and disruptive changes should now be targeted for the 11.x branch, which currently accepts only minor-version allowed changes. For more information, see the Drupal core minor version schedule and the Allowed changes during the Drupal core release cycle.