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<?php
/**
* @copyright Copyright © Kartik Visweswaran, Krajee.com, 2015 - 2019
* @package yii2-widgets
* @subpackage yii2-widget-activeform
* @version 1.5.8
*/
namespace kartik\form;
use kartik\base\BootstrapInterface;
use kartik\base\BootstrapTrait;
use yii\base\InvalidConfigException;
use yii\base\Model;
use yii\helpers\Html;
use yii\widgets\ActiveForm as YiiActiveForm;
/**
* ActiveForm is a widget that builds an interactive HTML form for one or multiple data models and extends the
* [[YiiActiveForm]] widget to handle various bootstrap form types and new functionality.
*
* Example:
*
* ~~~
* // Horizontal Form
* $form = ActiveForm::begin([
* 'id' => 'form-signup',
* 'type' => ActiveForm::TYPE_HORIZONTAL
* ]);
* // Inline Form
* $form = ActiveForm::begin([
* 'id' => 'form-login',
* 'type' => ActiveForm::TYPE_INLINE
* 'fieldConfig' => ['autoPlaceholder'=>true]
* ]);
* // Horizontal Form Configuration
* $form = ActiveForm::begin([
* 'id' => 'form-signup',
* 'type' => ActiveForm::TYPE_HORIZONTAL
* 'formConfig' => ['labelSpan' => 2, 'deviceSize' => ActiveForm::SIZE_SMALL]
* ]);
* ~~~
*
* @method ActiveField field(Model $model, \string $attribute, array $options = [])
* @author Kartik Visweswaran <kartikv2@gmail.com>
* @since 1.0
*/
class ActiveForm extends YiiActiveForm implements BootstrapInterface
{
use BootstrapTrait;
/**
* @var bool whether to render tooltip styled error and success messages. Applicable only for [[bsVersion]] 4.x
* and above.
*/
public $tooltipStyleFeedback = false;
/**
* @var int the default label span for horizontal forms which will offset the adjacent input accordingly.
*/
const DEFAULT_LABEL_SPAN = 2;
/**
* @var int the bootstrap default full grid width.
*/
const FULL_SPAN = 12;
/**
* @var string bootstrap styled vertical form layout (this is the default style)
*/
const TYPE_VERTICAL = 'vertical';
/**
* @var string bootstrap styled horizontal form layout
*/
const TYPE_HORIZONTAL = 'horizontal';
/**
* @var string bootstrap styled inline form layout
*/
const TYPE_INLINE = 'inline';
/**
* @var string bootstrap screen reader style for labels
*/
const SCREEN_READER = 'sr-only';
/**
* @inheritdoc
*/
public $fieldClass = 'kartik\form\ActiveField';
/**
* @var string form orientation type (for bootstrap styling). Either [[TYPE_VERTICAL]], [[TYPE_HORIZONTAL]], or
* [[TYPE_INLINE]]. Defaults to [[TYPE_VERTICAL]].
*/
public $type;
/**
* @var integer the bootstrap grid width. Defaults to [[FULL_SPAN]].
*/
public $fullSpan = self::FULL_SPAN;
/**
* @var array the configuration for the form. Takes in the following properties
* - `labelSpan`: _integer_, the bootstrap grid column width (usually between 1 to 12)
* - `deviceSize`: _string_, one of the bootstrap sizes (refer the ActiveForm::SIZE constants)
* - `showLabels`: _boolean_|_string_, whether to show labels (true)_, hide labels (false)_, or display only for
* [[SCREEN_READER]]. This is mainly useful for inline forms.
* - `showErrors`: _boolean_, whether to show errors (true) or hide errors (false). This is mainly useful for inline
* forms.
* - `showHints`: _boolean_, whether to show hints (true) or hide errors (false). Defaults to `true`. The hint will be
* rendered only if a valid hint has been set through the `hint()` method.
* ~~~
* [
* 'labelSpan' => 2,
* 'deviceSize' => ActiveForm::SIZE_MEDIUM,
* 'showLabels' => true,
* 'showErrors' => true,
* 'showHints' => true
* ],
* ~~~
*/
public $formConfig = [];
/**
* @var array HTML attributes for the form tag. Defaults to `['role' => 'form']`.
*/
public $options = ['role' => 'form'];
/**
* @var boolean whether all data in form are to be static inputs
*/
public $staticOnly = false;
/**
* @var boolean whether all inputs in form are to be disabled
*/
public $disabled = false;
/**
* @var boolean whether all inputs in form are to be readonly.
*/
public $readonly = false;
/**
* @var array the default form configuration.
*/
private $_config = [
self::TYPE_VERTICAL => [
'showLabels' => true, // show or hide labels (mainly useful for inline type form)
'showErrors' => true, // show or hide errors (mainly useful for inline type form)
'showHints' => true // show or hide hints below the input
],
self::TYPE_HORIZONTAL => [
'showLabels' => true,
'showErrors' => true,
'showHints' => true,
],
self::TYPE_INLINE => [
'showLabels' => self::SCREEN_READER,
'showErrors' => false,
'showHints' => true,
],
];
/**
* @inheritdoc
* @throws InvalidConfigException
*/
public function init()
{
$this->initBsVersion();
if (!is_int($this->fullSpan) || $this->fullSpan < 1) {
throw new InvalidConfigException("The 'fullSpan' property must be a valid positive integer.");
}
$this->initForm();
parent::init();
$this->registerAssets();
}
/**
* Gets form layout style configuration. This method is used by [[\kartik\field\FieldRange]] widget.
*
* @return array the form layout style configuration.
*/
public function getFormLayoutStyle()
{
$config = $this->formConfig;
$span = isset($config['labelSpan']) ? $config['labelSpan'] : ActiveField::NOT_SET;
$size = isset($config['deviceSize']) ? $config['deviceSize'] : ActiveField::NOT_SET;
$labelCss = $inputCss = ActiveField::NOT_SET;
$iSpan = intval($span);
if ($span != ActiveField::NOT_SET && $iSpan > 0) {
// validate if invalid `labelSpan` is passed else set to [[DEFAULT_LABEL_SPAN]]
if ($iSpan <= 0 && $iSpan >= $this->fullSpan) {
$iSpan = self::DEFAULT_LABEL_SPAN;
}
// validate if invalid `deviceSize` is passed else set to [[SIZE_MEDIUM]]
if ($size == ActiveField::NOT_SET) {
$size = self::SIZE_MEDIUM;
}
$prefix = "col-{$size}-";
$labelCss = $prefix . $iSpan;
$inputCss = $prefix . ($this->fullSpan - $iSpan);
}
return ['labelCss' => $labelCss, 'inputCss' => $inputCss];
}
/**
* Registers the assets for the [[ActiveForm]] widget.
* @throws InvalidConfigException
*/
public function registerAssets()
{
$view = $this->getView();
ActiveFormAsset::register($view);
$id = 'jQuery("#' . $this->options['id'] . ' .kv-hint-special")';
$js = 'var $el=' . $id . ';if($el.length){$el.each(function(){$(this).activeFieldHint()});}';
if ($this->isBs4()) {
$js .= "kvBs4InitForm();";
}
$view->registerJs($js);
}
/**
* Whether an inline layout form
* @return bool
*/
public function isInline()
{
return $this->type === self::TYPE_INLINE;
}
/**
* Whether a horizontal layout form
* @return bool
*/
public function isHorizontal()
{
return $this->type === self::TYPE_HORIZONTAL;
}
/**
* Whether a vertical layout form
* @return bool
*/
public function isVertical()
{
return !$this->isHorizontal() && !$this->isInline();
}
/**
* Initializes the form configuration array and parameters for the form.
*
* @throws InvalidConfigException
*/
protected function initForm()
{
if (empty($this->type)) {
$this->type = self::TYPE_VERTICAL;
}
if (!in_array($this->type, [self::TYPE_VERTICAL, self::TYPE_HORIZONTAL, self::TYPE_INLINE])) {
throw new InvalidConfigException('Invalid layout type: ' . $this->type);
}
$this->formConfig = array_replace_recursive($this->_config[$this->type], $this->formConfig);
$css = ["form-{$this->type}"];
if ($this->isHorizontal()) {
$css[] = 'kv-form-horizontal';
}
if ($this->isBs4()) {
$css[] = 'kv-form-bs4';
if ($this->tooltipStyleFeedback) {
$css[] = 'tooltip-feedback';
}
}
Html::addCssClass($this->options, $css);
}
}