'',
'#suffix' => '
',
);
$form['colorpicker'] = array(
'#weight' => -1,
'#markup' => '',
);
$form['HEX'] = array(
'#type' => 'textfield',
'#title' => t('HEX'),
'#default_value' => $action['HEX'],
'#size' => 7,
'#element_validate' => array('imagecache_rgb_validate'),
'#attributes' => array('class' => array('colorentry')),
);
// Adds the JS that binds the textarea with the farbtastic element.
// Find each colorpicker placeholder:
// initialize it,
// then find the nearby textfield that is of type colorentry
// and attach the colorpicker behavior to it.
// This is so we can support more that one per page if neccessary.
$init_colorpicker_script = "
(function ($) {
Drupal.behaviors.attachcolorpicker = {
attach: function(context) {
$('.colorpicker').each(function () {
// Configure picker to be attached to the nearest colorentry field.
linked_target = $('.colorentry', $(this).closest('.colorform'))
farb = $.farbtastic($(this), linked_target);
});
}
}
})(jQuery);
";
// Add Farbtastic color picker.
$form['HEX']['#attached'] = array(
'library' => array(
array('system', 'farbtastic'),
),
'js' => array(
array(
'type' => 'inline',
'data' => $init_colorpicker_script,
),
),
);
return $form;
}
/**
* Element validate handler to ensure a hexadecimal color value.
*
* The core image_effect_color_validate() was not intelligent enough.
* Actually parse the value in order to see if it is parsable.
*
* @param array $element
* param array $form_state
* Not used
*/
function imagecache_rgb_validate($element/*, &$form_state*/) {
if ($element['#value'] != '') {
$rgba_value = imagecache_actions_hex2rgba($element['#value']);
if (!$rgba_value) {
// Returning NULL means a parse error.
form_error($element, t('!name must be a hexadecimal color value.', array('!name' => $element['#title'])));
}
}
}
/**
* Displays a chosen color for use in the style summary snippets,
* by actually rendering the color.
*
* @param array $variables
*
* @return string
*/
function theme_imagecacheactions_rgb($variables) {
if (!empty($variables['RGB']['HEX'])) {
$hex = ltrim($variables['RGB']['HEX'], '#');
return " #{$hex} ";
}
return ' ' . t('Transparent');
}