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<?php
/**
* Joomla! Content Management System
*
* @copyright (C) 2011 Open Source Matters, Inc. <https://www.joomla.org>
* @license GNU General Public License version 2 or later; see LICENSE.txt
*/
namespace Joomla\CMS\Form\Field;
\defined('JPATH_PLATFORM') or die;
use Joomla\CMS\Factory;
use Joomla\CMS\Form\FormField;
/**
* Color Form Field class for the Joomla Platform.
* This implementation is designed to be compatible with HTML5's `<input type="color">`
*
* @link https://html.spec.whatwg.org/multipage/input.html#color-state-(type=color)
* @since 1.7.3
*/
class ColorField extends FormField
{
/**
* The form field type.
*
* @var string
* @since 1.7.3
*/
protected $type = 'Color';
/**
* The control.
*
* @var mixed
* @since 3.2
*/
protected $control = 'hue';
/**
* Default color when there is no value.
*
* @var string
* @since 4.0.0
*/
protected $default;
/**
* The type of value the slider should display: 'hue', 'saturation' or 'light'.
*
* @var string
* @since 4.0.0
*/
protected $display = 'hue';
/**
* The format.
*
* @var string
* @since 3.6.0
*/
protected $format = 'hex';
/**
* The keywords (transparent,initial,inherit).
*
* @var string
* @since 3.6.0
*/
protected $keywords = '';
/**
* The position.
*
* @var mixed
* @since 3.2
*/
protected $position = 'default';
/**
* The colors.
*
* @var mixed
* @since 3.2
*/
protected $colors;
/**
* Shows preview of the selected color
*
* @var boolean
* @since 4.0.0
*/
protected $preview = false;
/**
* Color format to use when value gets saved
*
* @var string
* @since 4.0.0
*/
protected $saveFormat = 'hex';
/**
* The split.
*
* @var integer
* @since 3.2
*/
protected $split = 3;
/**
* Name of the layout being used to render the field
*
* @var string
* @since 3.5
*/
protected $layout = 'joomla.form.field.color';
/**
* Method to get certain otherwise inaccessible properties from the form field object.
*
* @param string $name The property name for which to get the value.
*
* @return mixed The property value or null.
*
* @since 3.2
*/
public function __get($name)
{
switch ($name)
{
case 'colors':
case 'control':
case 'default':
case 'display':
case 'exclude':
case 'format':
case 'keywords':
case 'preview':
case 'saveFormat':
case 'split':
return $this->$name;
}
return parent::__get($name);
}
/**
* Method to set certain otherwise inaccessible properties of the form field object.
*
* @param string $name The property name for which to set the value.
* @param mixed $value The value of the property.
*
* @return void
*
* @since 3.2
*/
public function __set($name, $value)
{
switch ($name)
{
case 'colors':
case 'control':
case 'default':
case 'display':
case 'exclude':
case 'format':
case 'keywords':
case 'saveFormat':
$this->$name = (string) $value;
break;
case 'split':
$this->$name = (int) $value;
break;
case 'preview':
$this->$name = (boolean) $value;
break;
default:
parent::__set($name, $value);
}
}
/**
* Method to attach a Form object to the field.
*
* @param \SimpleXMLElement $element The SimpleXMLElement object representing the `<field>` tag for the form field object.
* @param mixed $value The form field value to validate.
* @param string $group The field name group control value. This acts as an array container for the field.
* For example if the field has name="foo" and the group value is set to "bar" then the
* full field name would end up being "bar[foo]".
*
* @return boolean True on success.
*
* @see FormField::setup()
* @since 3.2
*/
public function setup(\SimpleXMLElement $element, $value, $group = null)
{
$return = parent::setup($element, $value, $group);
if ($return)
{
$this->colors = (string) $this->element['colors'];
$this->control = isset($this->element['control']) ? (string) $this->element['control'] : 'hue';
$this->default = (string) $this->element['default'];
$this->display = isset($this->element['display']) ? (string) $this->element['display'] : 'hue';
$this->format = isset($this->element['format']) ? (string) $this->element['format'] : 'hex';
$this->keywords = (string) $this->element['keywords'];
$this->position = isset($this->element['position']) ? (string) $this->element['position'] : 'default';
$this->preview = isset($this->element['preview']) ? (string) $this->element['preview'] : false;
$this->saveFormat = isset($this->element['saveFormat']) ? (string) $this->element['saveFormat'] : 'hex';
$this->split = isset($this->element['split']) ? (int) $this->element['split'] : 3;
}
return $return;
}
/**
* Method to get the field input markup.
*
* @return string The field input markup.
*
* @since 1.7.3
*/
protected function getInput()
{
// Switch the layouts
if ($this->control === 'simple' || $this->control === 'slider')
{
$this->layout .= '.' . $this->control;
}
else
{
$this->layout .= '.advanced';
}
// Trim the trailing line in the layout file
return rtrim($this->getRenderer($this->layout)->render($this->getLayoutData()), PHP_EOL);
}
/**
* Method to get the data to be passed to the layout for rendering.
*
* @return array
*
* @since 3.5
*/
protected function getLayoutData()
{
$lang = Factory::getApplication()->getLanguage();
$data = parent::getLayoutData();
$color = strtolower($this->value);
$color = !$color && $color !== '0' ? '' : $color;
// Position of the panel can be: right (default), left, top or bottom (default RTL is left)
$position = ' data-position="' . (($lang->isRtl() && $this->position === 'default') ? 'left' : $this->position) . '"';
if ($color === '' || \in_array($color, array('none', 'transparent')))
{
$color = 'none';
}
elseif ($color[0] !== '#' && $this->format === 'hex')
{
$color = '#' . $color;
}
switch ($this->control)
{
case 'simple':
$controlModeData = $this->getSimpleModeLayoutData();
break;
case 'slider':
$controlModeData = $this->getSliderModeLayoutData();
break;
case 'advanced':
default:
$controlModeData = $this->getAdvancedModeLayoutData($lang);
break;
}
$extraData = array(
'color' => $color,
'format' => $this->format,
'keywords' => $this->keywords,
'position' => $position,
'validate' => $this->validate,
);
return array_merge($data, $extraData, $controlModeData);
}
/**
* Method to get the data for the simple mode to be passed to the layout for rendering.
*
* @return array
*
* @since 3.5
*/
protected function getSimpleModeLayoutData()
{
$colors = strtolower($this->colors);
if (empty($colors))
{
$colors = array(
'none',
'#049cdb',
'#46a546',
'#9d261d',
'#ffc40d',
'#f89406',
'#c3325f',
'#7a43b6',
'#ffffff',
'#999999',
'#555555',
'#000000',
);
}
else
{
$colors = explode(',', $colors);
}
if (!$this->split)
{
$count = \count($colors);
if ($count % 5 == 0)
{
$split = 5;
}
else
{
if ($count % 4 == 0)
{
$split = 4;
}
}
}
$split = $this->split ? $this->split : 3;
return array(
'colors' => $colors,
'split' => $split,
);
}
/**
* Method to get the data for the advanced mode to be passed to the layout for rendering.
*
* @param object $lang The language object
*
* @return array
*
* @since 3.5
*/
protected function getAdvancedModeLayoutData($lang)
{
return array(
'colors' => $this->colors,
'control' => $this->control,
'lang' => $lang,
);
}
/**
* Method to get the data for the slider
*
* @return array
*
* @since 4.0.0
*/
protected function getSliderModeLayoutData()
{
return array(
'default' => $this->default,
'display' => $this->display,
'preview' => $this->preview,
'saveFormat' => $this->saveFormat,
);
}
}