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<?php
/**
* CHtml class file.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @link http://www.yiiframework.com/
* @copyright Copyright &copy; 2008-2011 Yii Software LLC
* @license http://www.yiiframework.com/license/
*/


/**
* CHtml is a static class that provides a collection of helper methods for creating HTML views.
*
* @author Qiang Xue <qiang.xue@gmail.com>
* @version $Id$
* @package system.web.helpers
* @since 1.0
*/
class CHtml
{
const ID_PREFIX='yt';
/**
* @var string the CSS class for displaying error summaries (see {@link errorSummary}).
*/
public static $errorSummaryCss='errorSummary';
/**
* @var string the CSS class for displaying error messages (see {@link error}).
*/
public static $errorMessageCss='errorMessage';
/**
* @var string the CSS class for highlighting error inputs. Form inputs will be appended
* with this CSS class if they have input errors.
*/
public static $errorCss='error';
/**
* @var string the CSS class for required labels. Defaults to 'required'.
* @see label
*/
public static $requiredCss='required';
/**
* @var string the HTML code to be prepended to the required label.
* @see label
*/
public static $beforeRequiredLabel='';
/**
* @var string the HTML code to be appended to the required label.
* @see label
*/
public static $afterRequiredLabel=' <span class="required">*</span>';
/**
* @var integer the counter for generating automatic input field names.
*/
public static $count=0;

/**
* Sets the default style for attaching jQuery event handlers.
*
* If set to true (default), event handlers are delegated.
* Event handlers are attached to the document body and can process events
* from descendant elements that are added to the document at a later time.
*
* If set to false, event handlers are directly bound.
* Event handlers are attached directly to the DOM element, that must already exist
* on the page. Elements injected into the page at a later time will not be processed.
*
* You can override this setting for a particular element by setting the htmlOptions delegate attribute
* (see {@link clientChange}).
*
* For more information about attaching jQuery event handler see {@link http://api.jquery.com/on/}
* @since 1.1.9
* @see clientChange
*/
public static $liveEvents = true;

/**
* Encodes special characters into HTML entities.
* The {@link CApplication::charset application charset} will be used for encoding.
* @param string $text data to be encoded
* @return string the encoded data
* @see http://www.php.net/manual/en/function.htmlspecialchars.php
*/
public static function encode($text)
{
return htmlspecialchars($text,ENT_QUOTES,Yii::app()->charset);
}

/**
* Decodes special HTML entities back to the corresponding characters.
* This is the opposite of {@link encode()}.
* @param string $text data to be decoded
* @return string the decoded data
* @see http://www.php.net/manual/en/function.htmlspecialchars-decode.php
* @since 1.1.8
*/
public static function decode($text)
{
return htmlspecialchars_decode($text,ENT_QUOTES);
}

/**
* Encodes special characters in an array of strings into HTML entities.
* Both the array keys and values will be encoded if needed.
* If a value is an array, this method will also encode it recursively.
* The {@link CApplication::charset application charset} will be used for encoding.
* @param array $data data to be encoded
* @return array the encoded data
* @see http://www.php.net/manual/en/function.htmlspecialchars.php
*/
public static function encodeArray($data)
{
$d=array();
foreach($data as $key=>$value)
{
if(is_string($key))
$key=htmlspecialchars($key,ENT_QUOTES,Yii::app()->charset);
if(is_string($value))
$value=htmlspecialchars($value,ENT_QUOTES,Yii::app()->charset);
else if(is_array($value))
$value=self::encodeArray($value);
$d[$key]=$value;
}
return $d;
}

/**
* Generates an HTML element.
* @param string $tag the tag name
* @param array $htmlOptions the element attributes. The values will be HTML-encoded using {@link encode()}.
* If an 'encode' attribute is given and its value is false,
* the rest of the attribute values will NOT be HTML-encoded.
* Since version 1.1.5, attributes whose value is null will not be rendered.
* @param mixed $content the content to be enclosed between open and close element tags. It will not be HTML-encoded.
* If false, it means there is no body content.
* @param boolean $closeTag whether to generate the close tag.
* @return string the generated HTML element tag
*/
public static function tag($tag,$htmlOptions=array(),$content=false,$closeTag=true)
{
$html='<' . $tag . self::renderAttributes($htmlOptions);
if($content===false)
return $closeTag ? $html.' />' : $html.'>';
else
return $closeTag ? $html.'>'.$content.'</'.$tag.'>' : $html.'>'.$content;
}

/**
* Generates an open HTML element.
* @param string $tag the tag name
* @param array $htmlOptions the element attributes. The values will be HTML-encoded using {@link encode()}.
* If an 'encode' attribute is given and its value is false,
* the rest of the attribute values will NOT be HTML-encoded.
* Since version 1.1.5, attributes whose value is null will not be rendered.
* @return string the generated HTML element tag
*/
public static function openTag($tag,$htmlOptions=array())
{
return '<' . $tag . self::renderAttributes($htmlOptions) . '>';
}

/**
* Generates a close HTML element.
* @param string $tag the tag name
* @return string the generated HTML element tag
*/
public static function closeTag($tag)
{
return '</'.$tag.'>';
}

/**
* Encloses the given string within a CDATA tag.
* @param string $text the string to be enclosed
* @return string the CDATA tag with the enclosed content.
*/
public static function cdata($text)
{
return '<![CDATA[' . $text . ']]>';
}

/**
* Generates a meta tag that can be inserted in the head section of HTML page.
* @param string $content content attribute of the meta tag
* @param string $name name attribute of the meta tag. If null, the attribute will not be generated
* @param string $httpEquiv http-equiv attribute of the meta tag. If null, the attribute will not be generated
* @param array $options other options in name-value pairs (e.g. 'scheme', 'lang')
* @return string the generated meta tag
*/
public static function metaTag($content,$name=null,$httpEquiv=null,$options=array())
{
if($name!==null)
$options['name']=$name;
if($httpEquiv!==null)
$options['http-equiv']=$httpEquiv;
$options['content']=$content;
return self::tag('meta',$options);
}

/**
* Generates a link tag that can be inserted in the head section of HTML page.
* Do not confuse this method with {@link link()}. The latter generates a hyperlink.
* @param string $relation rel attribute of the link tag. If null, the attribute will not be generated.
* @param string $type type attribute of the link tag. If null, the attribute will not be generated.
* @param string $href href attribute of the link tag. If null, the attribute will not be generated.
* @param string $media media attribute of the link tag. If null, the attribute will not be generated.
* @param array $options other options in name-value pairs
* @return string the generated link tag
*/
public static function linkTag($relation=null,$type=null,$href=null,$media=null,$options=array())
{
if($relation!==null)
$options['rel']=$relation;
if($type!==null)
$options['type']=$type;
if($href!==null)
$options['href']=$href;
if($media!==null)
$options['media']=$media;
return self::tag('link',$options);
}

/**
* Encloses the given CSS content with a CSS tag.
* @param string $text the CSS content
* @param string $media the media that this CSS should apply to.
* @return string the CSS properly enclosed
*/
public static function css($text,$media='')
{
if($media!=='')
$media=' media="'.$media.'"';
return "<style type=\"text/css\"{$media}>\n/*<![CDATA[*/\n{$text}\n/*]]>*/\n</style>";
}

/**
* Registers a 'refresh' meta tag.
* This method can be invoked anywhere in a view. It will register a 'refresh'
* meta tag with {@link CClientScript} so that the page can be refreshed in
* the specified seconds.
* @param integer $seconds the number of seconds to wait before refreshing the page
* @param string $url the URL to which the page should be redirected to. If empty, it means the current page.
* @since 1.1.1
*/
public static function refresh($seconds, $url='')
{
$content="$seconds";
if($url!=='')
$content.=';'.self::normalizeUrl($url);
Yii::app()->clientScript->registerMetaTag($content,null,'refresh');
}

/**
* Links to the specified CSS file.
* @param string $url the CSS URL
* @param string $media the media that this CSS should apply to.
* @return string the CSS link.
*/
public static function cssFile($url,$media='')
{
if($media!=='')
$media=' media="'.$media.'"';
return '<link rel="stylesheet" type="text/css" href="'.self::encode($url).'"'.$media.' />';
}

/**
* Encloses the given JavaScript within a script tag.
* @param string $text the JavaScript to be enclosed
* @return string the enclosed JavaScript
*/
public static function script($text)
{
return "<script type=\"text/javascript\">\n/*<![CDATA[*/\n{$text}\n/*]]>*/\n</script>";
}

/**
* Includes a JavaScript file.
* @param string $url URL for the JavaScript file
* @return string the JavaScript file tag
*/
public static function scriptFile($url)
{
return '<script type="text/javascript" src="'.self::encode($url).'"></script>';
}

/**
* Generates an opening form tag.
* This is a shortcut to {@link beginForm}.
* @param mixed $action the form action URL (see {@link normalizeUrl} for details about this parameter.)
* @param string $method form method (e.g. post, get)
* @param array $htmlOptions additional HTML attributes (see {@link tag}).
* @return string the generated form tag.
*/
public static function form($action='',$method='post',$htmlOptions=array())
{
return self::beginForm($action,$method,$htmlOptions);
}

/**
* Generates an opening form tag.
* Note, only the open tag is generated. A close tag should be placed manually
* at the end of the form.
* @param mixed $action the form action URL (see {@link normalizeUrl} for details about this parameter.)
* @param string $method form method (e.g. post, get)
* @param array $htmlOptions additional HTML attributes (see {@link tag}).
* @return string the generated form tag.
* @see endForm
*/
public static function beginForm($action='',$method='post',$htmlOptions=array())
{
$htmlOptions['action']=$url=self::normalizeUrl($action);
$htmlOptions['method']=$method;
$form=self::tag('form',$htmlOptions,false,false);
$hiddens=array();
if(!strcasecmp($method,'get') && ($pos=strpos($url,'?'))!==false)
{
foreach(explode('&',substr($url,$pos+1)) as $pair)
{
if(($pos=strpos($pair,'='))!==false)
$hiddens[]=self::hiddenField(urldecode(substr($pair,0,$pos)),urldecode(substr($pair,$pos+1)),array('id'=>false));
}
}
$request=Yii::app()->request;
if($request->enableCsrfValidation && !strcasecmp($method,'post'))
$hiddens[]=self::hiddenField($request->csrfTokenName,$request->getCsrfToken(),array('id'=>false));
if($hiddens!==array())
$form.="\n".self::tag('div',array('style'=>'display:none'),implode("\n",$hiddens));
return $form;
}

/**
* Generates a closing form tag.
* @return string the generated tag
* @see beginForm
*/
public static function endForm()
{
return '</form>';
}

/**
* Generates a stateful form tag.
* A stateful form tag is similar to {@link form} except that it renders an additional
* hidden field for storing persistent page states. You should use this method to generate
* a form tag if you want to access persistent page states when the form is submitted.
* @param mixed $action the form action URL (see {@link normalizeUrl} for details about this parameter.)
* @param string $method form method (e.g. post, get)
* @param array $htmlOptions additional HTML attributes (see {@link tag}).
* @return string the generated form tag.
*/
public static function statefulForm($action='',$method='post',$htmlOptions=array())
{
return self::form($action,$method,$htmlOptions)."\n".
self::tag('div',array('style'=>'display:none'),self::pageStateField(''));
}

/**
* Generates a hidden field for storing persistent page states.
* This method is internally used by {@link statefulForm}.
* @param string $value the persistent page states in serialized format
* @return string the generated hidden field
*/
public static function pageStateField($value)
{
return '<input type="hidden" name="'.CController::STATE_INPUT_NAME.'" value="'.$value.'" />';
}

/**
* Generates a hyperlink tag.
* @param string $text link body. It will NOT be HTML-encoded. Therefore you can pass in HTML code such as an image tag.
* @param mixed $url a URL or an action route that can be used to create a URL.
* See {@link normalizeUrl} for more details about how to specify this parameter.
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated hyperlink
* @see normalizeUrl
* @see clientChange
*/
public static function link($text,$url='#',$htmlOptions=array())
{
if($url!=='')
$htmlOptions['href']=self::normalizeUrl($url);
self::clientChange('click',$htmlOptions);
return self::tag('a',$htmlOptions,$text);
}

/**
* Generates a mailto link.
* @param string $text link body. It will NOT be HTML-encoded. Therefore you can pass in HTML code such as an image tag.
* @param string $email email address. If this is empty, the first parameter (link body) will be treated as the email address.
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated mailto link
* @see clientChange
*/
public static function mailto($text,$email='',$htmlOptions=array())
{
if($email==='')
$email=$text;
return self::link($text,'mailto:'.$email,$htmlOptions);
}

/**
* Generates an image tag.
* @param string $src the image URL
* @param string $alt the alternative text display
* @param array $htmlOptions additional HTML attributes (see {@link tag}).
* @return string the generated image tag
*/
public static function image($src,$alt='',$htmlOptions=array())
{
$htmlOptions['src']=$src;
$htmlOptions['alt']=$alt;
return self::tag('img',$htmlOptions);
}

/**
* Generates a button.
* @param string $label the button label
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated button tag
* @see clientChange
*/
public static function button($label='button',$htmlOptions=array())
{
if(!isset($htmlOptions['name']))
{
if(!array_key_exists('name',$htmlOptions))
$htmlOptions['name']=self::ID_PREFIX.self::$count++;
}
if(!isset($htmlOptions['type']))
$htmlOptions['type']='button';
if(!isset($htmlOptions['value']))
$htmlOptions['value']=$label;
self::clientChange('click',$htmlOptions);
return self::tag('input',$htmlOptions);
}

/**
* Generates a button using HTML button tag.
* This method is similar to {@link button} except that it generates a 'button'
* tag instead of 'input' tag.
* @param string $label the button label. Note that this value will be directly inserted in the button element
* without being HTML-encoded.
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated button tag
* @see clientChange
*/
public static function htmlButton($label='button',$htmlOptions=array())
{
if(!isset($htmlOptions['name']))
$htmlOptions['name']=self::ID_PREFIX.self::$count++;
if(!isset($htmlOptions['type']))
$htmlOptions['type']='button';
self::clientChange('click',$htmlOptions);
return self::tag('button',$htmlOptions,$label);
}

/**
* Generates a submit button.
* @param string $label the button label
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated button tag
* @see clientChange
*/
public static function submitButton($label='submit',$htmlOptions=array())
{
$htmlOptions['type']='submit';
return self::button($label,$htmlOptions);
}

/**
* Generates a reset button.
* @param string $label the button label
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated button tag
* @see clientChange
*/
public static function resetButton($label='reset',$htmlOptions=array())
{
$htmlOptions['type']='reset';
return self::button($label,$htmlOptions);
}

/**
* Generates an image submit button.
* @param string $src the image URL
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated button tag
* @see clientChange
*/
public static function imageButton($src,$htmlOptions=array())
{
$htmlOptions['src']=$src;
$htmlOptions['type']='image';
return self::button('submit',$htmlOptions);
}

/**
* Generates a link submit button.
* @param string $label the button label
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated button tag
* @see clientChange
*/
public static function linkButton($label='submit',$htmlOptions=array())
{
if(!isset($htmlOptions['submit']))
$htmlOptions['submit']=isset($htmlOptions['href']) ? $htmlOptions['href'] : '';
return self::link($label,'#',$htmlOptions);
}

/**
* Generates a label tag.
* @param string $label label text. Note, you should HTML-encode the text if needed.
* @param string $for the ID of the HTML element that this label is associated with.
* If this is false, the 'for' attribute for the label tag will not be rendered.
* @param array $htmlOptions additional HTML attributes.
* The following HTML option is recognized:
* <ul>
* <li>required: if this is set and is true, the label will be styled
* with CSS class 'required' (customizable with CHtml::$requiredCss),
* and be decorated with {@link CHtml::beforeRequiredLabel} and
* {@link CHtml::afterRequiredLabel}.</li>
* </ul>
* @return string the generated label tag
*/
public static function label($label,$for,$htmlOptions=array())
{
if($for===false)
unset($htmlOptions['for']);
else
$htmlOptions['for']=$for;
if(isset($htmlOptions['required']))
{
if($htmlOptions['required'])
{
if(isset($htmlOptions['class']))
$htmlOptions['class'].=' '.self::$requiredCss;
else
$htmlOptions['class']=self::$requiredCss;
$label=self::$beforeRequiredLabel.$label.self::$afterRequiredLabel;
}
unset($htmlOptions['required']);
}
return self::tag('label',$htmlOptions,$label);
}

/**
* Generates a text field input.
* @param string $name the input name
* @param string $value the input value
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated input field
* @see clientChange
* @see inputField
*/
public static function textField($name,$value='',$htmlOptions=array())
{
self::clientChange('change',$htmlOptions);
return self::inputField('text',$name,$value,$htmlOptions);
}

/**
* Generates a hidden input.
* @param string $name the input name
* @param string $value the input value
* @param array $htmlOptions additional HTML attributes (see {@link tag}).
* @return string the generated input field
* @see inputField
*/
public static function hiddenField($name,$value='',$htmlOptions=array())
{
return self::inputField('hidden',$name,$value,$htmlOptions);
}

/**
* Generates a password field input.
* @param string $name the input name
* @param string $value the input value
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated input field
* @see clientChange
* @see inputField
*/
public static function passwordField($name,$value='',$htmlOptions=array())
{
self::clientChange('change',$htmlOptions);
return self::inputField('password',$name,$value,$htmlOptions);
}

/**
* Generates a file input.
* Note, you have to set the enclosing form's 'enctype' attribute to be 'multipart/form-data'.
* After the form is submitted, the uploaded file information can be obtained via $_FILES[$name] (see
* PHP documentation).
* @param string $name the input name
* @param string $value the input value
* @param array $htmlOptions additional HTML attributes (see {@link tag}).
* @return string the generated input field
* @see inputField
*/
public static function fileField($name,$value='',$htmlOptions=array())
{
return self::inputField('file',$name,$value,$htmlOptions);
}

/**
* Generates a text area input.
* @param string $name the input name
* @param string $value the input value
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated text area
* @see clientChange
* @see inputField
*/
public static function textArea($name,$value='',$htmlOptions=array())
{
$htmlOptions['name']=$name;
if(!isset($htmlOptions['id']))
$htmlOptions['id']=self::getIdByName($name);
else if($htmlOptions['id']===false)
unset($htmlOptions['id']);
self::clientChange('change',$htmlOptions);
return self::tag('textarea',$htmlOptions,isset($htmlOptions['encode']) && !$htmlOptions['encode'] ? $value : self::encode($value));
}

/**
* Generates a radio button.
* @param string $name the input name
* @param boolean $checked whether the radio button is checked
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* Since version 1.1.2, a special option named 'uncheckValue' is available that can be used to specify
* the value returned when the radio button is not checked. When set, a hidden field is rendered so that
* when the radio button is not checked, we can still obtain the posted uncheck value.
* If 'uncheckValue' is not set or set to NULL, the hidden field will not be rendered.
* @return string the generated radio button
* @see clientChange
* @see inputField
*/
public static function radioButton($name,$checked=false,$htmlOptions=array())
{
if($checked)
$htmlOptions['checked']='checked';
else
unset($htmlOptions['checked']);
$value=isset($htmlOptions['value']) ? $htmlOptions['value'] : 1;
self::clientChange('click',$htmlOptions);

if(array_key_exists('uncheckValue',$htmlOptions))
{
$uncheck=$htmlOptions['uncheckValue'];
unset($htmlOptions['uncheckValue']);
}
else
$uncheck=null;

if($uncheck!==null)
{
// add a hidden field so that if the radio button is not selected, it still submits a value
if(isset($htmlOptions['id']) && $htmlOptions['id']!==false)
$uncheckOptions=array('id'=>self::ID_PREFIX.$htmlOptions['id']);
else
$uncheckOptions=array('id'=>false);
$hidden=self::hiddenField($name,$uncheck,$uncheckOptions);
}
else
$hidden='';

// add a hidden field so that if the radio button is not selected, it still submits a value
return $hidden . self::inputField('radio',$name,$value,$htmlOptions);
}

/**
* Generates a check box.
* @param string $name the input name
* @param boolean $checked whether the check box is checked
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* Since version 1.1.2, a special option named 'uncheckValue' is available that can be used to specify
* the value returned when the checkbox is not checked. When set, a hidden field is rendered so that
* when the checkbox is not checked, we can still obtain the posted uncheck value.
* If 'uncheckValue' is not set or set to NULL, the hidden field will not be rendered.
* @return string the generated check box
* @see clientChange
* @see inputField
*/
public static function checkBox($name,$checked=false,$htmlOptions=array())
{
if($checked)
$htmlOptions['checked']='checked';
else
unset($htmlOptions['checked']);
$value=isset($htmlOptions['value']) ? $htmlOptions['value'] : 1;
self::clientChange('click',$htmlOptions);

if(array_key_exists('uncheckValue',$htmlOptions))
{
$uncheck=$htmlOptions['uncheckValue'];
unset($htmlOptions['uncheckValue']);
}
else
$uncheck=null;

if($uncheck!==null)
{
// add a hidden field so that if the radio button is not selected, it still submits a value
if(isset($htmlOptions['id']) && $htmlOptions['id']!==false)
$uncheckOptions=array('id'=>self::ID_PREFIX.$htmlOptions['id']);
else
$uncheckOptions=array('id'=>false);
$hidden=self::hiddenField($name,$uncheck,$uncheckOptions);
}
else
$hidden='';

// add a hidden field so that if the checkbox is not selected, it still submits a value
return $hidden . self::inputField('checkbox',$name,$value,$htmlOptions);
}

/**
* Generates a drop down list.
* @param string $name the input name
* @param string $select the selected value
* @param array $data data for generating the list options (value=>display).
* You may use {@link listData} to generate this data.
* Please refer to {@link listOptions} on how this data is used to generate the list options.
* Note, the values and labels will be automatically HTML-encoded by this method.
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are recognized. See {@link clientChange} and {@link tag} for more details.
* In addition, the following options are also supported specifically for dropdown list:
* <ul>
* <li>encode: boolean, specifies whether to encode the values. Defaults to true.</li>
* <li>prompt: string, specifies the prompt text shown as the first list option. Its value is empty. Note, the prompt text will NOT be HTML-encoded.</li>
* <li>empty: string, specifies the text corresponding to empty selection. Its value is empty.
* The 'empty' option can also be an array of value-label pairs.
* Each pair will be used to render a list option at the beginning. Note, the text label will NOT be HTML-encoded.</li>
* <li>options: array, specifies additional attributes for each OPTION tag.
* The array keys must be the option values, and the array values are the extra
* OPTION tag attributes in the name-value pairs. For example,
* <pre>
* array(
* 'value1'=>array('disabled'=>true, 'label'=>'value 1'),
* 'value2'=>array('label'=>'value 2'),
* );
* </pre>
* </li>
* </ul>
* @return string the generated drop down list
* @see clientChange
* @see inputField
* @see listData
*/
public static function dropDownList($name,$select,$data,$htmlOptions=array())
{
$htmlOptions['name']=$name;
if(!isset($htmlOptions['id']))
$htmlOptions['id']=self::getIdByName($name);
else if($htmlOptions['id']===false)
unset($htmlOptions['id']);
self::clientChange('change',$htmlOptions);
$options="\n".self::listOptions($select,$data,$htmlOptions);
return self::tag('select',$htmlOptions,$options);
}

/**
* Generates a list box.
* @param string $name the input name
* @param mixed $select the selected value(s). This can be either a string for single selection or an array for multiple selections.
* @param array $data data for generating the list options (value=>display)
* You may use {@link listData} to generate this data.
* Please refer to {@link listOptions} on how this data is used to generate the list options.
* Note, the values and labels will be automatically HTML-encoded by this method.
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized. See {@link clientChange} and {@link tag} for more details.
* In addition, the following options are also supported specifically for list box:
* <ul>
* <li>encode: boolean, specifies whether to encode the values. Defaults to true.</li>
* <li>prompt: string, specifies the prompt text shown as the first list option. Its value is empty. Note, the prompt text will NOT be HTML-encoded.</li>
* <li>empty: string, specifies the text corresponding to empty selection. Its value is empty.
* The 'empty' option can also be an array of value-label pairs.
* Each pair will be used to render a list option at the beginning. Note, the text label will NOT be HTML-encoded.</li>
* <li>options: array, specifies additional attributes for each OPTION tag.
* The array keys must be the option values, and the array values are the extra
* OPTION tag attributes in the name-value pairs. For example,
* <pre>
* array(
* 'value1'=>array('disabled'=>true, 'label'=>'value 1'),
* 'value2'=>array('label'=>'value 2'),
* );
* </pre>
* </li>
* </ul>
* @return string the generated list box
* @see clientChange
* @see inputField
* @see listData
*/
public static function listBox($name,$select,$data,$htmlOptions=array())
{
if(!isset($htmlOptions['size']))
$htmlOptions['size']=4;
if(isset($htmlOptions['multiple']))
{
if(substr($name,-2)!=='[]')
$name.='[]';
}
return self::dropDownList($name,$select,$data,$htmlOptions);
}

/**
* Generates a check box list.
* A check box list allows multiple selection, like {@link listBox}.
* As a result, the corresponding POST value is an array.
* @param string $name name of the check box list. You can use this name to retrieve
* the selected value(s) once the form is submitted.
* @param mixed $select selection of the check boxes. This can be either a string
* for single selection or an array for multiple selections.
* @param array $data value-label pairs used to generate the check box list.
* Note, the values will be automatically HTML-encoded, while the labels will not.
* @param array $htmlOptions addtional HTML options. The options will be applied to
* each checkbox input. The following special options are recognized:
* <ul>
* <li>template: string, specifies how each checkbox is rendered. Defaults
* to "{input} {label}", where "{input}" will be replaced by the generated
* check box input tag while "{label}" be replaced by the corresponding check box label.</li>
* <li>separator: string, specifies the string that separates the generated check boxes.</li>
* <li>checkAll: string, specifies the label for the "check all" checkbox.
* If this option is specified, a 'check all' checkbox will be displayed. Clicking on
* this checkbox will cause all checkboxes checked or unchecked.</li>
* <li>checkAllLast: boolean, specifies whether the 'check all' checkbox should be
* displayed at the end of the checkbox list. If this option is not set (default)
* or is false, the 'check all' checkbox will be displayed at the beginning of
* the checkbox list.</li>
* <li>labelOptions: array, specifies the additional HTML attributes to be rendered
* for every label tag in the list.</li>
* <li>container: string, specifies the checkboxes enclosing tag. Defaults to 'span'.
* If the value is an empty string, no enclosing tag will be generated</li>
* </ul>
* @return string the generated check box list
*/
public static function checkBoxList($name,$select,$data,$htmlOptions=array())
{
$template=isset($htmlOptions['template'])?$htmlOptions['template']:'{input} {label}';
$separator=isset($htmlOptions['separator'])?$htmlOptions['separator']:"<br/>\n";
$container=isset($htmlOptions['container'])?$htmlOptions['container']:'span';
unset($htmlOptions['template'],$htmlOptions['separator'],$htmlOptions['container']);

if(substr($name,-2)!=='[]')
$name.='[]';

if(isset($htmlOptions['checkAll']))
{
$checkAllLabel=$htmlOptions['checkAll'];
$checkAllLast=isset($htmlOptions['checkAllLast']) && $htmlOptions['checkAllLast'];
}
unset($htmlOptions['checkAll'],$htmlOptions['checkAllLast']);

$labelOptions=isset($htmlOptions['labelOptions'])?$htmlOptions['labelOptions']:array();
unset($htmlOptions['labelOptions']);

$items=array();
$baseID=self::getIdByName($name);
$id=0;
$checkAll=true;

foreach($data as $value=>$label)
{
$checked=!is_array($select) && !strcmp($value,$select) || is_array($select) && in_array($value,$select);
$checkAll=$checkAll && $checked;
$htmlOptions['value']=$value;
$htmlOptions['id']=$baseID.'_'.$id++;
$option=self::checkBox($name,$checked,$htmlOptions);
$label=self::label($label,$htmlOptions['id'],$labelOptions);
$items[]=strtr($template,array('{input}'=>$option,'{label}'=>$label));
}

if(isset($checkAllLabel))
{
$htmlOptions['value']=1;
$htmlOptions['id']=$id=$baseID.'_all';
$option=self::checkBox($id,$checkAll,$htmlOptions);
$label=self::label($checkAllLabel,$id,$labelOptions);
$item=strtr($template,array('{input}'=>$option,'{label}'=>$label));
if($checkAllLast)
$items[]=$item;
else
array_unshift($items,$item);
$name=strtr($name,array('['=>'\\[',']'=>'\\]'));
$js=<<<EOD
$('#$id').click(function() {
$("input[name='$name']").prop('checked', this.checked);
});
$("input[name='$name']").click(function() {
$('#$id').prop('checked', !$("input[name='$name']:not(:checked)").length);
});
$('#$id').prop('checked', !$("input[name='$name']:not(:checked)").length);
EOD;
$cs=Yii::app()->getClientScript();
$cs->registerCoreScript('jquery');
$cs->registerScript($id,$js);
}

if(empty($container))
return implode($separator,$items);
else
return self::tag($container,array('id'=>$baseID),implode($separator,$items));
}

/**
* Generates a radio button list.
* A radio button list is like a {@link checkBoxList check box list}, except that
* it only allows single selection.
* @param string $name name of the radio button list. You can use this name to retrieve
* the selected value(s) once the form is submitted.
* @param string $select selection of the radio buttons.
* @param array $data value-label pairs used to generate the radio button list.
* Note, the values will be automatically HTML-encoded, while the labels will not.
* @param array $htmlOptions addtional HTML options. The options will be applied to
* each radio button input. The following special options are recognized:
* <ul>
* <li>template: string, specifies how each radio button is rendered. Defaults
* to "{input} {label}", where "{input}" will be replaced by the generated
* radio button input tag while "{label}" will be replaced by the corresponding radio button label.</li>
* <li>separator: string, specifies the string that separates the generated radio buttons. Defaults to new line (<br/>).</li>
* <li>labelOptions: array, specifies the additional HTML attributes to be rendered
* for every label tag in the list.</li>
* <li>container: string, specifies the radio buttons enclosing tag. Defaults to 'span'.
* If the value is an empty string, no enclosing tag will be generated</li>
* </ul>
* @return string the generated radio button list
*/
public static function radioButtonList($name,$select,$data,$htmlOptions=array())
{
$template=isset($htmlOptions['template'])?$htmlOptions['template']:'{input} {label}';
$separator=isset($htmlOptions['separator'])?$htmlOptions['separator']:"<br/>\n";
$container=isset($htmlOptions['container'])?$htmlOptions['container']:'span';
unset($htmlOptions['template'],$htmlOptions['separator'],$htmlOptions['container']);

$labelOptions=isset($htmlOptions['labelOptions'])?$htmlOptions['labelOptions']:array();
unset($htmlOptions['labelOptions']);

$items=array();
$baseID=self::getIdByName($name);
$id=0;
foreach($data as $value=>$label)
{
$checked=!strcmp($value,$select);
$htmlOptions['value']=$value;
$htmlOptions['id']=$baseID.'_'.$id++;
$option=self::radioButton($name,$checked,$htmlOptions);
$label=self::label($label,$htmlOptions['id'],$labelOptions);
$items[]=strtr($template,array('{input}'=>$option,'{label}'=>$label));
}
if(empty($container))
return implode($separator,$items);
else
return self::tag($container,array('id'=>$baseID),implode($separator,$items));
}

/**
* Generates a link that can initiate AJAX requests.
* @param string $text the link body (it will NOT be HTML-encoded.)
* @param mixed $url the URL for the AJAX request. If empty, it is assumed to be the current URL. See {@link normalizeUrl} for more details.
* @param array $ajaxOptions AJAX options (see {@link ajax})
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated link
* @see normalizeUrl
* @see ajax
*/
public static function ajaxLink($text,$url,$ajaxOptions=array(),$htmlOptions=array())
{
if(!isset($htmlOptions['href']))
$htmlOptions['href']='#';
$ajaxOptions['url']=$url;
$htmlOptions['ajax']=$ajaxOptions;
self::clientChange('click',$htmlOptions);
return self::tag('a',$htmlOptions,$text);
}

/**
* Generates a push button that can initiate AJAX requests.
* @param string $label the button label
* @param mixed $url the URL for the AJAX request. If empty, it is assumed to be the current URL. See {@link normalizeUrl} for more details.
* @param array $ajaxOptions AJAX options (see {@link ajax})
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated button
*/
public static function ajaxButton($label,$url,$ajaxOptions=array(),$htmlOptions=array())
{
$ajaxOptions['url']=$url;
$htmlOptions['ajax']=$ajaxOptions;
return self::button($label,$htmlOptions);
}

/**
* Generates a push button that can submit the current form in POST method.
* @param string $label the button label
* @param mixed $url the URL for the AJAX request. If empty, it is assumed to be the current URL. See {@link normalizeUrl} for more details.
* @param array $ajaxOptions AJAX options (see {@link ajax})
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated button
*/
public static function ajaxSubmitButton($label,$url,$ajaxOptions=array(),$htmlOptions=array())
{
$ajaxOptions['type']='POST';
$htmlOptions['type']='submit';
return self::ajaxButton($label,$url,$ajaxOptions,$htmlOptions);
}

/**
* Generates the JavaScript that initiates an AJAX request.
* @param array $options AJAX options. The valid options are specified in the jQuery ajax documentation.
* The following special options are added for convenience:
* <ul>
* <li>update: string, specifies the selector whose HTML content should be replaced
* by the AJAX request result.</li>
* <li>replace: string, specifies the selector whose target should be replaced
* by the AJAX request result.</li>
* </ul>
* Note, if you specify the 'success' option, the above options will be ignored.
* @return string the generated JavaScript
* @see http://docs.jquery.com/Ajax/jQuery.ajax#options
*/
public static function ajax($options)
{
Yii::app()->getClientScript()->registerCoreScript('jquery');
if(!isset($options['url']))
$options['url']=new CJavaScriptExpression('location.href');
else
$options['url']=self::normalizeUrl($options['url']);
if(!isset($options['cache']))
$options['cache']=false;
if(!isset($options['data']) && isset($options['type']))
$options['data']=new CJavaScriptExpression('jQuery(this).parents("form").serialize()');
foreach(array('beforeSend','complete','error','success') as $name)
{
if(isset($options[$name]) && !($options[$name] instanceof CJavaScriptExpression))
$options[$name]=new CJavaScriptExpression($options[$name]);
}
if(isset($options['update']))
{
if(!isset($options['success']))
$options['success']=new CJavaScriptExpression('function(html){jQuery("'.$options['update'].'").html(html)}');
unset($options['update']);
}
if(isset($options['replace']))
{
if(!isset($options['success']))
$options['success']=new CJavaScriptExpression('function(html){jQuery("'.$options['replace'].'").replaceWith(html)}');
unset($options['replace']);
}
return 'jQuery.ajax('.CJavaScript::encode($options).');';
}

/**
* Generates the URL for the published assets.
* @param string $path the path of the asset to be published
* @param boolean $hashByName whether the published directory should be named as the hashed basename.
* If false, the name will be the hashed dirname of the path being published.
* Defaults to false. Set true if the path being published is shared among
* different extensions.
* @return string the asset URL
*/
public static function asset($path,$hashByName=false)
{
return Yii::app()->getAssetManager()->publish($path,$hashByName);
}

/**
* Normalizes the input parameter to be a valid URL.
*
* If the input parameter is an empty string, the currently requested URL will be returned.
*
* If the input parameter is a non-empty string, it is treated as a valid URL and will
* be returned without any change.
*
* If the input parameter is an array, it is treated as a controller route and a list of
* GET parameters, and the {@link CController::createUrl} method will be invoked to
* create a URL. In this case, the first array element refers to the controller route,
* and the rest key-value pairs refer to the additional GET parameters for the URL.
* For example, <code>array('post/list', 'page'=>3)</code> may be used to generate the URL
* <code>/index.php?r=post/list&page=3</code>.
*
* @param mixed $url the parameter to be used to generate a valid URL
* @return string the normalized URL
*/
public static function normalizeUrl($url)
{
if(is_array($url))
{
if(isset($url[0]))
{
if(($c=Yii::app()->getController())!==null)
$url=$c->createUrl($url[0],array_splice($url,1));
else
$url=Yii::app()->createUrl($url[0],array_splice($url,1));
}
else
$url='';
}
return $url==='' ? Yii::app()->getRequest()->getUrl() : $url;
}

/**
* Generates an input HTML tag.
* This method generates an input HTML tag based on the given input name and value.
* @param string $type the input type (e.g. 'text', 'radio')
* @param string $name the input name
* @param string $value the input value
* @param array $htmlOptions additional HTML attributes for the HTML tag (see {@link tag}).
* @return string the generated input tag
*/
protected static function inputField($type,$name,$value,$htmlOptions)
{
$htmlOptions['type']=$type;
$htmlOptions['value']=$value;
$htmlOptions['name']=$name;
if(!isset($htmlOptions['id']))
$htmlOptions['id']=self::getIdByName($name);
else if($htmlOptions['id']===false)
unset($htmlOptions['id']);
return self::tag('input',$htmlOptions);
}

/**
* Generates a label tag for a model attribute.
* The label text is the attribute label and the label is associated with
* the input for the attribute (see {@link CModel::getAttributeLabel}.
* If the attribute has input error, the label's CSS class will be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. The following special options are recognized:
* <ul>
* <li>required: if this is set and is true, the label will be styled
* with CSS class 'required' (customizable with CHtml::$requiredCss),
* and be decorated with {@link CHtml::beforeRequiredLabel} and
* {@link CHtml::afterRequiredLabel}.</li>
* <li>label: this specifies the label to be displayed. If this is not set,
* {@link CModel::getAttributeLabel} will be called to get the label for display.
* If the label is specified as false, no label will be rendered.</li>
* </ul>
* @return string the generated label tag
*/
public static function activeLabel($model,$attribute,$htmlOptions=array())
{
if(isset($htmlOptions['for']))
{
$for=$htmlOptions['for'];
unset($htmlOptions['for']);
}
else
$for=self::getIdByName(self::resolveName($model,$attribute));
if(isset($htmlOptions['label']))
{
if(($label=$htmlOptions['label'])===false)
return '';
unset($htmlOptions['label']);
}
else
$label=$model->getAttributeLabel($attribute);
if($model->hasErrors($attribute))
self::addErrorCss($htmlOptions);
return self::label($label,$for,$htmlOptions);
}

/**
* Generates a label tag for a model attribute.
* This is an enhanced version of {@link activeLabel}. It will render additional
* CSS class and mark when the attribute is required.
* In particular, it calls {@link CModel::isAttributeRequired} to determine
* if the attribute is required.
* If so, it will add a CSS class {@link CHtml::requiredCss} to the label,
* and decorate the label with {@link CHtml::beforeRequiredLabel} and
* {@link CHtml::afterRequiredLabel}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes.
* @return string the generated label tag
*/
public static function activeLabelEx($model,$attribute,$htmlOptions=array())
{
$realAttribute=$attribute;
self::resolveName($model,$attribute); // strip off square brackets if any
$htmlOptions['required']=$model->isAttributeRequired($attribute);
return self::activeLabel($model,$realAttribute,$htmlOptions);
}

/**
* Generates a text field input for a model attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated input field
* @see clientChange
* @see activeInputField
*/
public static function activeTextField($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
self::clientChange('change',$htmlOptions);
return self::activeInputField('text',$model,$attribute,$htmlOptions);
}

/**
* Generates a url field input for a model attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated input field
* @see clientChange
* @see activeInputField
* @since 1.1.11
*/
public static function activeUrlField($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
self::clientChange('change',$htmlOptions);
return self::activeInputField('url',$model,$attribute,$htmlOptions);
}

/**
* Generates an email field input for a model attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated input field
* @see clientChange
* @see activeInputField
* @since 1.1.11
*/
public static function activeEmailField($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
self::clientChange('change',$htmlOptions);
return self::activeInputField('email',$model,$attribute,$htmlOptions);
}

/**
* Generates a number field input for a model attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated input field
* @see clientChange
* @see activeInputField
* @since 1.1.11
*/
public static function activeNumberField($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
self::clientChange('change',$htmlOptions);
return self::activeInputField('number',$model,$attribute,$htmlOptions);
}

/**
* Generates a range field input for a model attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated input field
* @see clientChange
* @see activeInputField
* @since 1.1.11
*/
public static function activeRangeField($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
self::clientChange('change',$htmlOptions);
return self::activeInputField('range',$model,$attribute,$htmlOptions);
}

/**
* Generates a date field input for a model attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated input field
* @see clientChange
* @see activeInputField
* @since 1.1.11
*/
public static function activeDateField($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
self::clientChange('change',$htmlOptions);
return self::activeInputField('date',$model,$attribute,$htmlOptions);
}


/**
* Generates a hidden input for a model attribute.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes.
* @return string the generated input field
* @see activeInputField
*/
public static function activeHiddenField($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
return self::activeInputField('hidden',$model,$attribute,$htmlOptions);
}

/**
* Generates a password field input for a model attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated input field
* @see clientChange
* @see activeInputField
*/
public static function activePasswordField($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
self::clientChange('change',$htmlOptions);
return self::activeInputField('password',$model,$attribute,$htmlOptions);
}

/**
* Generates a text area input for a model attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* @return string the generated text area
* @see clientChange
*/
public static function activeTextArea($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
self::clientChange('change',$htmlOptions);
if($model->hasErrors($attribute))
self::addErrorCss($htmlOptions);
$text=self::resolveValue($model,$attribute);
return self::tag('textarea',$htmlOptions,isset($htmlOptions['encode']) && !$htmlOptions['encode'] ? $text : self::encode($text));
}

/**
* Generates a file input for a model attribute.
* Note, you have to set the enclosing form's 'enctype' attribute to be 'multipart/form-data'.
* After the form is submitted, the uploaded file information can be obtained via $_FILES (see
* PHP documentation).
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes (see {@link tag}).
* @return string the generated input field
* @see activeInputField
*/
public static function activeFileField($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
// add a hidden field so that if a model only has a file field, we can
// still use isset($_POST[$modelClass]) to detect if the input is submitted
$hiddenOptions=isset($htmlOptions['id']) ? array('id'=>self::ID_PREFIX.$htmlOptions['id']) : array('id'=>false);
return self::hiddenField($htmlOptions['name'],'',$hiddenOptions)
. self::activeInputField('file',$model,$attribute,$htmlOptions);
}

/**
* Generates a radio button for a model attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* A special option named 'uncheckValue' is available that can be used to specify
* the value returned when the radio button is not checked. By default, this value is '0'.
* Internally, a hidden field is rendered so that when the radio button is not checked,
* we can still obtain the posted uncheck value.
* If 'uncheckValue' is set as NULL, the hidden field will not be rendered.
* @return string the generated radio button
* @see clientChange
* @see activeInputField
*/
public static function activeRadioButton($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
if(!isset($htmlOptions['value']))
$htmlOptions['value']=1;
if(!isset($htmlOptions['checked']) && self::resolveValue($model,$attribute)==$htmlOptions['value'])
$htmlOptions['checked']='checked';
self::clientChange('click',$htmlOptions);

if(array_key_exists('uncheckValue',$htmlOptions))
{
$uncheck=$htmlOptions['uncheckValue'];
unset($htmlOptions['uncheckValue']);
}
else
$uncheck='0';

$hiddenOptions=isset($htmlOptions['id']) ? array('id'=>self::ID_PREFIX.$htmlOptions['id']) : array('id'=>false);
$hidden=$uncheck!==null ? self::hiddenField($htmlOptions['name'],$uncheck,$hiddenOptions) : '';

// add a hidden field so that if the radio button is not selected, it still submits a value
return $hidden . self::activeInputField('radio',$model,$attribute,$htmlOptions);
}

/**
* Generates a check box for a model attribute.
* The attribute is assumed to take either true or false value.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are also recognized (see {@link clientChange} and {@link tag} for more details.)
* A special option named 'uncheckValue' is available that can be used to specify
* the value returned when the checkbox is not checked. By default, this value is '0'.
* Internally, a hidden field is rendered so that when the checkbox is not checked,
* we can still obtain the posted uncheck value.
* If 'uncheckValue' is set as NULL, the hidden field will not be rendered.
* @return string the generated check box
* @see clientChange
* @see activeInputField
*/
public static function activeCheckBox($model,$attribute,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
if(!isset($htmlOptions['value']))
$htmlOptions['value']=1;
if(!isset($htmlOptions['checked']) && self::resolveValue($model,$attribute)==$htmlOptions['value'])
$htmlOptions['checked']='checked';
self::clientChange('click',$htmlOptions);

if(array_key_exists('uncheckValue',$htmlOptions))
{
$uncheck=$htmlOptions['uncheckValue'];
unset($htmlOptions['uncheckValue']);
}
else
$uncheck='0';

$hiddenOptions=isset($htmlOptions['id']) ? array('id'=>self::ID_PREFIX.$htmlOptions['id']) : array('id'=>false);
$hidden=$uncheck!==null ? self::hiddenField($htmlOptions['name'],$uncheck,$hiddenOptions) : '';

return $hidden . self::activeInputField('checkbox',$model,$attribute,$htmlOptions);
}

/**
* Generates a drop down list for a model attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $data data for generating the list options (value=>display)
* You may use {@link listData} to generate this data.
* Please refer to {@link listOptions} on how this data is used to generate the list options.
* Note, the values and labels will be automatically HTML-encoded by this method.
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are recognized. See {@link clientChange} and {@link tag} for more details.
* In addition, the following options are also supported:
* <ul>
* <li>encode: boolean, specifies whether to encode the values. Defaults to true.</li>
* <li>prompt: string, specifies the prompt text shown as the first list option. Its value is empty. Note, the prompt text will NOT be HTML-encoded.</li>
* <li>empty: string, specifies the text corresponding to empty selection. Its value is empty.
* The 'empty' option can also be an array of value-label pairs.
* Each pair will be used to render a list option at the beginning. Note, the text label will NOT be HTML-encoded.</li>
* <li>options: array, specifies additional attributes for each OPTION tag.
* The array keys must be the option values, and the array values are the extra
* OPTION tag attributes in the name-value pairs. For example,
* <pre>
* array(
* 'value1'=>array('disabled'=>true, 'label'=>'value 1'),
* 'value2'=>array('label'=>'value 2'),
* );
* </pre>
* </li>
* </ul>
* @return string the generated drop down list
* @see clientChange
* @see listData
*/
public static function activeDropDownList($model,$attribute,$data,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
$selection=self::resolveValue($model,$attribute);
$options="\n".self::listOptions($selection,$data,$htmlOptions);
self::clientChange('change',$htmlOptions);
if($model->hasErrors($attribute))
self::addErrorCss($htmlOptions);
if(isset($htmlOptions['multiple']))
{
if(substr($htmlOptions['name'],-2)!=='[]')
$htmlOptions['name'].='[]';
}
return self::tag('select',$htmlOptions,$options);
}

/**
* Generates a list box for a model attribute.
* The model attribute value is used as the selection.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $data data for generating the list options (value=>display)
* You may use {@link listData} to generate this data.
* Please refer to {@link listOptions} on how this data is used to generate the list options.
* Note, the values and labels will be automatically HTML-encoded by this method.
* @param array $htmlOptions additional HTML attributes. Besides normal HTML attributes, a few special
* attributes are recognized. See {@link clientChange} and {@link tag} for more details.
* In addition, the following options are also supported:
* <ul>
* <li>encode: boolean, specifies whether to encode the values. Defaults to true.</li>
* <li>prompt: string, specifies the prompt text shown as the first list option. Its value is empty. Note, the prompt text will NOT be HTML-encoded.</li>
* <li>empty: string, specifies the text corresponding to empty selection. Its value is empty.
* The 'empty' option can also be an array of value-label pairs.
* Each pair will be used to render a list option at the beginning. Note, the text label will NOT be HTML-encoded.</li>
* <li>options: array, specifies additional attributes for each OPTION tag.
* The array keys must be the option values, and the array values are the extra
* OPTION tag attributes in the name-value pairs. For example,
* <pre>
* array(
* 'value1'=>array('disabled'=>true, 'label'=>'value 1'),
* 'value2'=>array('label'=>'value 2'),
* );
* </pre>
* </li>
* </ul>
* @return string the generated list box
* @see clientChange
* @see listData
*/
public static function activeListBox($model,$attribute,$data,$htmlOptions=array())
{
if(!isset($htmlOptions['size']))
$htmlOptions['size']=4;
return self::activeDropDownList($model,$attribute,$data,$htmlOptions);
}

/**
* Generates a check box list for a model attribute.
* The model attribute value is used as the selection.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* Note that a check box list allows multiple selection, like {@link listBox}.
* As a result, the corresponding POST value is an array. In case no selection
* is made, the corresponding POST value is an empty string.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $data value-label pairs used to generate the check box list.
* Note, the values will be automatically HTML-encoded, while the labels will not.
* @param array $htmlOptions addtional HTML options. The options will be applied to
* each checkbox input. The following special options are recognized:
* <ul>
* <li>template: string, specifies how each checkbox is rendered. Defaults
* to "{input} {label}", where "{input}" will be replaced by the generated
* check box input tag while "{label}" will be replaced by the corresponding check box label.</li>
* <li>separator: string, specifies the string that separates the generated check boxes.</li>
* <li>checkAll: string, specifies the label for the "check all" checkbox.
* If this option is specified, a 'check all' checkbox will be displayed. Clicking on
* this checkbox will cause all checkboxes checked or unchecked.</li>
* <li>checkAllLast: boolean, specifies whether the 'check all' checkbox should be
* displayed at the end of the checkbox list. If this option is not set (default)
* or is false, the 'check all' checkbox will be displayed at the beginning of
* the checkbox list.</li>
* <li>encode: boolean, specifies whether to encode HTML-encode tag attributes and values. Defaults to true.</li>
* </ul>
* Since 1.1.7, a special option named 'uncheckValue' is available. It can be used to set the value
* that will be returned when the checkbox is not checked. By default, this value is ''.
* Internally, a hidden field is rendered so when the checkbox is not checked, we can still
* obtain the value. If 'uncheckValue' is set to NULL, there will be no hidden field rendered.
* @return string the generated check box list
* @see checkBoxList
*/
public static function activeCheckBoxList($model,$attribute,$data,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
$selection=self::resolveValue($model,$attribute);
if($model->hasErrors($attribute))
self::addErrorCss($htmlOptions);
$name=$htmlOptions['name'];
unset($htmlOptions['name']);

if(array_key_exists('uncheckValue',$htmlOptions))
{
$uncheck=$htmlOptions['uncheckValue'];
unset($htmlOptions['uncheckValue']);
}
else
$uncheck='';

$hiddenOptions=isset($htmlOptions['id']) ? array('id'=>self::ID_PREFIX.$htmlOptions['id']) : array('id'=>false);
$hidden=$uncheck!==null ? self::hiddenField($name,$uncheck,$hiddenOptions) : '';

return $hidden . self::checkBoxList($name,$selection,$data,$htmlOptions);
}

/**
* Generates a radio button list for a model attribute.
* The model attribute value is used as the selection.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $data value-label pairs used to generate the radio button list.
* Note, the values will be automatically HTML-encoded, while the labels will not.
* @param array $htmlOptions addtional HTML options. The options will be applied to
* each radio button input. The following special options are recognized:
* <ul>
* <li>template: string, specifies how each radio button is rendered. Defaults
* to "{input} {label}", where "{input}" will be replaced by the generated
* radio button input tag while "{label}" will be replaced by the corresponding radio button label.</li>
* <li>separator: string, specifies the string that separates the generated radio buttons. Defaults to new line (<br/>).</li>
* <li>encode: boolean, specifies whether to encode HTML-encode tag attributes and values. Defaults to true.</li>
* </ul>
* Since version 1.1.7, a special option named 'uncheckValue' is available that can be used to specify the value
* returned when the radio button is not checked. By default, this value is ''. Internally, a hidden field is
* rendered so that when the radio button is not checked, we can still obtain the posted uncheck value.
* If 'uncheckValue' is set as NULL, the hidden field will not be rendered.
* @return string the generated radio button list
* @see radioButtonList
*/
public static function activeRadioButtonList($model,$attribute,$data,$htmlOptions=array())
{
self::resolveNameID($model,$attribute,$htmlOptions);
$selection=self::resolveValue($model,$attribute);
if($model->hasErrors($attribute))
self::addErrorCss($htmlOptions);
$name=$htmlOptions['name'];
unset($htmlOptions['name']);

if(array_key_exists('uncheckValue',$htmlOptions))
{
$uncheck=$htmlOptions['uncheckValue'];
unset($htmlOptions['uncheckValue']);
}
else
$uncheck='';

$hiddenOptions=isset($htmlOptions['id']) ? array('id'=>self::ID_PREFIX.$htmlOptions['id']) : array('id'=>false);
$hidden=$uncheck!==null ? self::hiddenField($name,$uncheck,$hiddenOptions) : '';

return $hidden . self::radioButtonList($name,$selection,$data,$htmlOptions);
}

/**
* Displays a summary of validation errors for one or several models.
* @param mixed $model the models whose input errors are to be displayed. This can be either
* a single model or an array of models.
* @param string $header a piece of HTML code that appears in front of the errors
* @param string $footer a piece of HTML code that appears at the end of the errors
* @param array $htmlOptions additional HTML attributes to be rendered in the container div tag.
* A special option named 'firstError' is recognized, which when set true, will
* make the error summary to show only the first error message of each attribute.
* If this is not set or is false, all error messages will be displayed.
* This option has been available since version 1.1.3.
* @return string the error summary. Empty if no errors are found.
* @see CModel::getErrors
* @see errorSummaryCss
*/
public static function errorSummary($model,$header=null,$footer=null,$htmlOptions=array())
{
$content='';
if(!is_array($model))
$model=array($model);
if(isset($htmlOptions['firstError']))
{
$firstError=$htmlOptions['firstError'];
unset($htmlOptions['firstError']);
}
else
$firstError=false;
foreach($model as $m)
{
foreach($m->getErrors() as $errors)
{
foreach($errors as $error)
{
if($error!='')
$content.="<li>$error</li>\n";
if($firstError)
break;
}
}
}
if($content!=='')
{
if($header===null)
$header='<p>'.Yii::t('yii','Please fix the following input errors:').'</p>';
if(!isset($htmlOptions['class']))
$htmlOptions['class']=self::$errorSummaryCss;
return self::tag('div',$htmlOptions,$header."\n<ul>\n$content</ul>".$footer);
}
else
return '';
}

/**
* Displays the first validation error for a model attribute.
* @param CModel $model the data model
* @param string $attribute the attribute name
* @param array $htmlOptions additional HTML attributes to be rendered in the container div tag.
* @return string the error display. Empty if no errors are found.
* @see CModel::getErrors
* @see errorMessageCss
*/
public static function error($model,$attribute,$htmlOptions=array())
{
self::resolveName($model,$attribute); // turn [a][b]attr into attr
$error=$model->getError($attribute);
if($error!='')
{
if(!isset($htmlOptions['class']))
$htmlOptions['class']=self::$errorMessageCss;
return self::tag('div',$htmlOptions,$error);
}
else
return '';
}

/**
* Generates the data suitable for list-based HTML elements.
* The generated data can be used in {@link dropDownList}, {@link listBox}, {@link checkBoxList},
* {@link radioButtonList}, and their active-versions (such as {@link activeDropDownList}).
* Note, this method does not HTML-encode the generated data. You may call {@link encodeArray} to
* encode it if needed.
* Please refer to the {@link value} method on how to specify value field, text field and group field.
* @param array $models a list of model objects. This parameter
* can also be an array of associative arrays (e.g. results of {@link CDbCommand::queryAll}).
* @param string $valueField the attribute name for list option values
* @param string $textField the attribute name for list option texts
* @param string $groupField the attribute name for list option group names. If empty, no group will be generated.
* @return array the list data that can be used in {@link dropDownList}, {@link listBox}, etc.
*/
public static function listData($models,$valueField,$textField,$groupField='')
{
$listData=array();
if($groupField==='')
{
foreach($models as $model)
{
$value=self::value($model,$valueField);
$text=self::value($model,$textField);
$listData[$value]=$text;
}
}
else
{
foreach($models as $model)
{
$group=self::value($model,$groupField);
$value=self::value($model,$valueField);
$text=self::value($model,$textField);
$listData[$group][$value]=$text;
}
}
return $listData;
}

/**
* Evaluates the value of the specified attribute for the given model.
* The attribute name can be given in a dot syntax. For example, if the attribute
* is "author.firstName", this method will return the value of "$model->author->firstName".
* A default value (passed as the last parameter) will be returned if the attribute does
* not exist or is broken in the middle (e.g. $model->author is null).
* The model can be either an object or an array. If the latter, the attribute is treated
* as a key of the array. For the example of "author.firstName", if would mean the array value
* "$model['author']['firstName']".
* @param mixed $model the model. This can be either an object or an array.
* @param string $attribute the attribute name (use dot to concatenate multiple attributes)
* @param mixed $defaultValue the default value to return when the attribute does not exist
* @return mixed the attribute value
*/
public static function value($model,$attribute,$defaultValue=null)
{
foreach(explode('.',$attribute) as $name)
{
if(is_object($model))
$model=$model->$name;
else if(is_array($model) && isset($model[$name]))
$model=$model[$name];
else
return $defaultValue;
}
return $model;
}

/**
* Generates a valid HTML ID based on name.
* @param string $name name from which to generate HTML ID
* @return string the ID generated based on name.
*/
public static function getIdByName($name)
{
return str_replace(array('[]', '][', '[', ']', ' '), array('', '_', '_', '', '_'), $name);
}

/**
* Generates input field ID for a model attribute.
* @param CModel $model the data model
* @param string $attribute the attribute
* @return string the generated input field ID
*/
public static function activeId($model,$attribute)
{
return self::getIdByName(self::activeName($model,$attribute));
}

/**
* Generates input field name for a model attribute.
* Unlike {@link resolveName}, this method does NOT modify the attribute name.
* @param CModel $model the data model
* @param string $attribute the attribute
* @return string the generated input field name
*/
public static function activeName($model,$attribute)
{
$a=$attribute; // because the attribute name may be changed by resolveName
return self::resolveName($model,$a);
}

/**
* Generates an input HTML tag for a model attribute.
* This method generates an input HTML tag based on the given data model and attribute.
* If the attribute has input error, the input field's CSS class will
* be appended with {@link errorCss}.
* This enables highlighting the incorrect input.
* @param string $type the input type (e.g. 'text', 'radio')
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions additional HTML attributes for the HTML tag
* @return string the generated input tag
*/
protected static function activeInputField($type,$model,$attribute,$htmlOptions)
{
$htmlOptions['type']=$type;
if($type==='text' || $type==='password')
{
if(!isset($htmlOptions['maxlength']))
{
foreach($model->getValidators($attribute) as $validator)
{
if($validator instanceof CStringValidator && $validator->max!==null)
{
$htmlOptions['maxlength']=$validator->max;
break;
}
}
}
else if($htmlOptions['maxlength']===false)
unset($htmlOptions['maxlength']);
}

if($type==='file')
unset($htmlOptions['value']);
else if(!isset($htmlOptions['value']))
$htmlOptions['value']=self::resolveValue($model,$attribute);
if($model->hasErrors($attribute))
self::addErrorCss($htmlOptions);
return self::tag('input',$htmlOptions);
}

/**
* Generates the list options.
* @param mixed $selection the selected value(s). This can be either a string for single selection or an array for multiple selections.
* @param array $listData the option data (see {@link listData})
* @param array $htmlOptions additional HTML attributes. The following two special attributes are recognized:
* <ul>
* <li>encode: boolean, specifies whether to encode the values. Defaults to true.</li>
* <li>prompt: string, specifies the prompt text shown as the first list option. Its value is empty. Note, the prompt text will NOT be HTML-encoded.</li>
* <li>empty: string, specifies the text corresponding to empty selection. Its value is empty.
* The 'empty' option can also be an array of value-label pairs.
* Each pair will be used to render a list option at the beginning. Note, the text label will NOT be HTML-encoded.</li>
* <li>options: array, specifies additional attributes for each OPTION tag.
* The array keys must be the option values, and the array values are the extra
* OPTION tag attributes in the name-value pairs. For example,
* <pre>
* array(
* 'value1'=>array('disabled'=>true, 'label'=>'value 1'),
* 'value2'=>array('label'=>'value 2'),
* );
* </pre>
* </li>
* <li>key: string, specifies the name of key attribute of the selection object(s).
* This is used when the selection is represented in terms of objects. In this case,
* the property named by the key option of the objects will be treated as the actual selection value.
* This option defaults to 'primaryKey', meaning using the 'primaryKey' property value of the objects in the selection.
* This option has been available since version 1.1.3.</li>
* </ul>
* @return string the generated list options
*/
public static function listOptions($selection,$listData,&$htmlOptions)
{
$raw=isset($htmlOptions['encode']) && !$htmlOptions['encode'];
$content='';
if(isset($htmlOptions['prompt']))
{
$content.='<option value="">'.strtr($htmlOptions['prompt'],array('<'=>'&lt;', '>'=>'&gt;'))."</option>\n";
unset($htmlOptions['prompt']);
}
if(isset($htmlOptions['empty']))
{
if(!is_array($htmlOptions['empty']))
$htmlOptions['empty']=array(''=>$htmlOptions['empty']);
foreach($htmlOptions['empty'] as $value=>$label)
$content.='<option value="'.self::encode($value).'">'.strtr($label,array('<'=>'&lt;', '>'=>'&gt;'))."</option>\n";
unset($htmlOptions['empty']);
}

if(isset($htmlOptions['options']))
{
$options=$htmlOptions['options'];
unset($htmlOptions['options']);
}
else
$options=array();

$key=isset($htmlOptions['key']) ? $htmlOptions['key'] : 'primaryKey';
if(is_array($selection))
{
foreach($selection as $i=>$item)
{
if(is_object($item))
$selection[$i]=$item->$key;
}
}
else if(is_object($selection))
$selection=$selection->$key;

foreach($listData as $key=>$value)
{
if(is_array($value))
{
$content.='<optgroup label="'.($raw?$key : self::encode($key))."\">\n";
$dummy=array('options'=>$options);
if(isset($htmlOptions['encode']))
$dummy['encode']=$htmlOptions['encode'];
$content.=self::listOptions($selection,$value,$dummy);
$content.='</optgroup>'."\n";
}
else
{
$attributes=array('value'=>(string)$key, 'encode'=>!$raw);
if(!is_array($selection) && !strcmp($key,$selection) || is_array($selection) && in_array($key,$selection))
$attributes['selected']='selected';
if(isset($options[$key]))
$attributes=array_merge($attributes,$options[$key]);
$content.=self::tag('option',$attributes,$raw?(string)$value : self::encode((string)$value))."\n";
}
}

unset($htmlOptions['key']);

return $content;
}

/**
* Generates the JavaScript with the specified client changes.
* @param string $event event name (without 'on')
* @param array $htmlOptions HTML attributes which may contain the following special attributes
* specifying the client change behaviors:
* <ul>
* <li>submit: string, specifies the URL that the button should submit to. If empty, the current requested URL will be used.</li>
* <li>params: array, name-value pairs that should be submitted together with the form. This is only used when 'submit' option is specified.</li>
* <li>csrf: boolean, whether a CSRF token should be submitted when {@link CHttpRequest::enableCsrfValidation} is true. Defaults to false.
* You may want to set this to be true if there is no enclosing form around this element.
* This option is meaningful only when 'submit' option is set.</li>
* <li>return: boolean, the return value of the javascript. Defaults to false, meaning that the execution of
* javascript would not cause the default behavior of the event.</li>
* <li>confirm: string, specifies the message that should show in a pop-up confirmation dialog.</li>
* <li>ajax: array, specifies the AJAX options (see {@link ajax}).</li>
* <li>live: boolean, whether the event handler should be delegated or directly bound.
* If not set, {@link liveEvents} will be used. This option has been available since version 1.1.11.</li>
* </ul>
* This parameter has been available since version 1.1.1.
*/
protected static function clientChange($event,&$htmlOptions)
{
if(!isset($htmlOptions['submit']) && !isset($htmlOptions['confirm']) && !isset($htmlOptions['ajax']))
return;

if(isset($htmlOptions['live']))
{
$live=$htmlOptions['live'];
unset($htmlOptions['live']);
}
else
$live = self::$liveEvents;

if(isset($htmlOptions['return']) && $htmlOptions['return'])
$return='return true';
else
$return='return false';

if(isset($htmlOptions['on'.$event]))
{
$handler=trim($htmlOptions['on'.$event],';').';';
unset($htmlOptions['on'.$event]);
}
else
$handler='';

if(isset($htmlOptions['id']))
$id=$htmlOptions['id'];
else
$id=$htmlOptions['id']=isset($htmlOptions['name'])?$htmlOptions['name']:self::ID_PREFIX.self::$count++;

$cs=Yii::app()->getClientScript();
$cs->registerCoreScript('jquery');

if(isset($htmlOptions['submit']))
{
$cs->registerCoreScript('yii');
$request=Yii::app()->getRequest();
if($request->enableCsrfValidation && isset($htmlOptions['csrf']) && $htmlOptions['csrf'])
$htmlOptions['params'][$request->csrfTokenName]=$request->getCsrfToken();
if(isset($htmlOptions['params']))
$params=CJavaScript::encode($htmlOptions['params']);
else
$params='{}';
if($htmlOptions['submit']!=='')
$url=CJavaScript::quote(self::normalizeUrl($htmlOptions['submit']));
else
$url='';
$handler.="jQuery.yii.submitForm(this,'$url',$params);{$return};";
}

if(isset($htmlOptions['ajax']))
$handler.=self::ajax($htmlOptions['ajax'])."{$return};";

if(isset($htmlOptions['confirm']))
{
$confirm='confirm(\''.CJavaScript::quote($htmlOptions['confirm']).'\')';
if($handler!=='')
$handler="if($confirm) {".$handler."} else return false;";
else
$handler="return $confirm;";
}

if($live)
$cs->registerScript('Yii.CHtml.#' . $id, "$('body').on('$event','#$id',function(){{$handler}});");
else
$cs->registerScript('Yii.CHtml.#' . $id, "$('#$id').on('$event', function(){{$handler}});");
unset($htmlOptions['params'],$htmlOptions['submit'],$htmlOptions['ajax'],$htmlOptions['confirm'],$htmlOptions['return'],$htmlOptions['csrf']);
}

/**
* Generates input name and ID for a model attribute.
* This method will update the HTML options by setting appropriate 'name' and 'id' attributes.
* This method may also modify the attribute name if the name
* contains square brackets (mainly used in tabular input).
* @param CModel $model the data model
* @param string $attribute the attribute
* @param array $htmlOptions the HTML options
*/
public static function resolveNameID($model,&$attribute,&$htmlOptions)
{
if(!isset($htmlOptions['name']))
$htmlOptions['name']=self::resolveName($model,$attribute);
if(!isset($htmlOptions['id']))
$htmlOptions['id']=self::getIdByName($htmlOptions['name']);
else if($htmlOptions['id']===false)
unset($htmlOptions['id']);
}

/**
* Generates input name for a model attribute.
* Note, the attribute name may be modified after calling this method if the name
* contains square brackets (mainly used in tabular input) before the real attribute name.
* @param CModel $model the data model
* @param string $attribute the attribute
* @return string the input name
*/
public static function resolveName($model,&$attribute)
{
if(($pos=strpos($attribute,'['))!==false)
{
if($pos!==0) // e.g. name[a][b]
return get_class($model).'['.substr($attribute,0,$pos).']'.substr($attribute,$pos);
if(($pos=strrpos($attribute,']'))!==false && $pos!==strlen($attribute)-1) // e.g. [a][b]name
{
$sub=substr($attribute,0,$pos+1);
$attribute=substr($attribute,$pos+1);
return get_class($model).$sub.'['.$attribute.']';
}
if(preg_match('/\](\w+\[.*)$/',$attribute,$matches))
{
$name=get_class($model).'['.str_replace(']','][',trim(strtr($attribute,array(']['=>']','['=>']')),']')).']';
$attribute=$matches[1];
return $name;
}
}
return get_class($model).'['.$attribute.']';
}

/**
* Evaluates the attribute value of the model.
* This method can recognize the attribute name written in array format.
* For example, if the attribute name is 'name[a][b]', the value "$model->name['a']['b']" will be returned.
* @param CModel $model the data model
* @param string $attribute the attribute name
* @return mixed the attribute value
* @since 1.1.3
*/
public static function resolveValue($model,$attribute)
{
if(($pos=strpos($attribute,'['))!==false)
{
if($pos===0) // [a]name[b][c], should ignore [a]
{
if(preg_match('/\](\w+(\[.+)?)/',$attribute,$matches))
$attribute=$matches[1]; // we get: name[b][c]
if(($pos=strpos($attribute,'['))===false)
return $model->$attribute;
}
$name=substr($attribute,0,$pos);
$value=$model->$name;
foreach(explode('][',rtrim(substr($attribute,$pos+1),']')) as $id)
{
if((is_array($value) || $value instanceof ArrayAccess) && isset($value[$id]))
$value=$value[$id];
else
return null;
}
return $value;
}
else
return $model->$attribute;
}

/**
* Appends {@link errorCss} to the 'class' attribute.
* @param array $htmlOptions HTML options to be modified
*/
protected static function addErrorCss(&$htmlOptions)
{
if(isset($htmlOptions['class']))
$htmlOptions['class'].=' '.self::$errorCss;
else
$htmlOptions['class']=self::$errorCss;
}

/**
* Renders the HTML tag attributes.
* Since version 1.1.5, attributes whose value is null will not be rendered.
* Special attributes, such as 'checked', 'disabled', 'readonly', will be rendered
* properly based on their corresponding boolean value.
* @param array $htmlOptions attributes to be rendered
* @return string the rendering result
*/
public static function renderAttributes($htmlOptions)
{
static $specialAttributes=array(
'checked'=>1,
'declare'=>1,
'defer'=>1,
'disabled'=>1,
'ismap'=>1,
'multiple'=>1,
'nohref'=>1,
'noresize'=>1,
'readonly'=>1,
'selected'=>1,
);

if($htmlOptions===array())
return '';

$html='';
if(isset($htmlOptions['encode']))
{
$raw=!$htmlOptions['encode'];
unset($htmlOptions['encode']);
}
else
$raw=false;

foreach($htmlOptions as $name=>$value)
{
if(isset($specialAttributes[$name]))
{
if($value)
$html .= ' ' . $name . '="' . $name . '"';
}
else if($value!==null)
$html .= ' ' . $name . '="' . ($raw ? $value : self::encode($value)) . '"';
}

return $html;
}
}
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