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<?php defined('SYSPATH') or die('No direct script access.');
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/**
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* Form helper class.
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*
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* $Id: form.php 1970 2008-02-06 21:54:29Z Shadowhand $
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*
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* @package Core
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* @author Kohana Team
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* @copyright (c) 2007-2008 Kohana Team
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* @license http://kohanaphp.com/license.html
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*/
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class form {
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/**
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* Generates an opening HTML form tag.
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*
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* @param string form action attribute
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* @param array extra attributes
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* @param array hidden fields to be created immediately after the form tag
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* @return string
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*/
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public static function open($action = '', $attr = array(), $hidden = NULL)
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{
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// Make sure that the method is always set
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empty($attr['method']) and $attr['method'] = 'post';
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if ($attr['method'] != 'post' AND $attr['method'] != 'get')
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{
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// If the method is invalid, use post
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$attr['method'] = 'post';
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}
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if (empty($action) OR ! is_string($action))
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{
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// Use the current URL as the default action
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$action = url::site(Router::$current_uri);
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}
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elseif (strpos($action, '://') === FALSE)
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{
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// Make the action URI into a URL
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$action = url::site($action);
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}
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// Form opening tag
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$form = '<form action="'.$action.'"'.form::attributes($attr).'>'."\n";
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// Add hidden fields immediate after opening tag
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empty($hidden) or $form .= form::hidden($hidden);
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return $form;
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}
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/**
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* Generates an opening HTML form tag that can be used for uploading files.
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*
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* @param string form action attribute
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* @param array extra attributes
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* @param array hidden fields to be created immediately after the form tag
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* @return string
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*/
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public static function open_multipart($action, $attr = array(), $hidden = array())
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{
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// Set multi-part form type
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$attr['enctype'] = 'multipart/form-data';
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return form::open($action, $attr, $hidden);
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}
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/**
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* Generates a fieldset opening tag.
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*
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* @param array html attributes
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function open_fieldset($data = NULL, $extra = '')
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{
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if ( ! empty($extra))
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{
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// Make sure there is 1 space before extra
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$extra = ' '.ltrim($extra);
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}
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return '<fieldset'.html::attributes((array) $data).$extra.'>'."\n";
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}
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/**
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* Generates a fieldset closing tag.
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*
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* @return string
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*/
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public static function close_fieldset()
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{
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return '</fieldset>'."\n";
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}
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/**
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* Generates a legend tag for use with a fieldset.
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*
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* @param string legend text
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* @param array HTML attributes
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function legend($text = '', $data = NULL, $extra = '')
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{
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if ( ! empty($extra))
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{
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// Make sure there is 1 space before extra
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$extra = ' '.ltrim($extra);
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}
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return '<legend'.form::attributes((array) $data).$extra.'>'.$text.'</legend>'."\n";
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}
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/**
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* Generates hidden form fields.
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* You can pass a simple key/value string or an associative array with multiple values.
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*
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* @param string|array input name (string) or key/value pairs (array)
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* @param string input value, if using an input name
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* @return string
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*/
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public static function hidden($data, $value = '', $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array
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(
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$data => $value
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);
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}
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if ( ! empty($extra))
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{
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// Make sure there is 1 space before extra
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$extra = ' '.ltrim($extra);
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}
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$input = '';
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foreach($data as $name => $value)
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{
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$attr = array
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(
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'type' => 'hidden',
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'name' => $name,
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'value' => $value
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);
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$input .= form::input($attr, $value, $extra)."\n";
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}
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return $input;
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}
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/**
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* Creates an HTML form input tag. Defaults to a text type.
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*
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* @param string|array input name or an array of HTML attributes
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* @param string input value, when using a name
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function input($data, $value = '', $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array('name' => $data);
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}
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// Type and value are required attributes
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$data += array
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(
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'type' => 'text',
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'value' => $value
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);
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if ( ! empty($extra))
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{
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// Make sure there is 1 space before extra
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$extra = ' '.ltrim($extra);
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}
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// For safe form data
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$data['value'] = html::specialchars($data['value']);
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return '<input'.form::attributes($data).$extra.' />';
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}
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/**
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* Creates a HTML form password input tag.
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*
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* @param string|array input name or an array of HTML attributes
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* @param string input value, when using a name
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function password($data, $value = '', $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array('name' => $data);
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}
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$data['type'] = 'password';
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return form::input($data, $value, $extra);
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}
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/**
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* Creates an HTML form upload input tag.
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*
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* @param string|array input name or an array of HTML attributes
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* @param string input value, when using a name
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function upload($data, $value = '', $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array('name' => $data);
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}
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$data['type'] = 'file';
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return form::input($data, $value, $extra);
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}
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/**
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* Creates an HTML form textarea tag.
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*
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* @param string|array input name or an array of HTML attributes
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* @param string input value, when using a name
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function textarea($data, $value = '', $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array('name' => $data);
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}
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// Use the value from $data if possible, or use $value
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$value = isset($data['value']) ? $data['value'] : $value;
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// Value is not part of the attributes
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unset($data['value']);
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if ( ! empty($extra))
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{
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// Make sure there is 1 space before extra
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$extra = ' '.ltrim($extra);
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}
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return '<textarea'.form::attributes($data).$extra.'>'.html::specialchars($value).'</textarea>';
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}
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/**
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* Creates an HTML form select tag, or "dropdown menu".
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*
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* @param string|array input name or an array of HTML attributes
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* @param array select options, when using a name
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* @param string option key that should be selected by default
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function dropdown($data, $options = array(), $selected = array(), $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array('name' => $data);
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}
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if ( ! empty($extra))
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{
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// Make sure there is 1 space before extra
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$extra = ' '.ltrim($extra);
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}
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// Selected value should always be a string
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if (!is_array($selected))
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$selected = array($selected);
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$input = '<select'.form::attributes($data).$extra.'>'."\n";
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foreach ($options as $key => $val)
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{
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// Key should always be a string
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$key = (string) $key;
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if (is_array($val))
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{
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$input .= '<optgroup label="'.$key.'">'."\n";
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foreach ($val as $inner_key => $inner_val)
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{
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// Inner key should always be a string
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$inner_key = (string) $inner_key;
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$sel = (in_array($inner_key,$selected)) ? ' selected="selected"' : '';
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$input .= '<option value="'.$inner_key.'"'.$sel.'>'.$inner_val.'</option>'."\n";
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}
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$input .= '</optgroup>'."\n";
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}
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else
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{
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$sel = (in_array($key,$selected)) ? ' selected="selected"' : '';
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$input .= '<option value';
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if ($key!='')
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$input.= '="'.$key.'"';
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$input .= $sel.'>'.$val.'</option>'."\n";
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}
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}
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$input .= '</select>';
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return $input;
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}
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/**
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* Creates an HTML form checkbox input tag.
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*
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* @param string|array input name or an array of HTML attributes
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* @param string input value, when using a name
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* @param boolean make the checkbox checked by default
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function checkbox($data, $value = '', $checked = FALSE, $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array('name' => $data);
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}
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$data['type'] = 'checkbox';
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if ($checked == TRUE OR (isset($data['checked']) AND $data['checked'] == TRUE))
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{
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$data['checked'] = 'checked';
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}
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else
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{
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unset($data['checked']);
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}
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return form::input($data, $value, $extra);
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}
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/**
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* Creates an HTML form radio input tag.
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*
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* @param string|array input name or an array of HTML attributes
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* @param string input value, when using a name
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* @param boolean make the radio selected by default
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function radio($data = '', $value = '', $checked = FALSE, $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array('name' => $data);
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}
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$data['type'] = 'radio';
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if ($checked == TRUE OR (isset($data['checked']) AND $data['checked'] == TRUE))
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{
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$data['checked'] = 'checked';
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}
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else
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{
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unset($data['checked']);
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}
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return form::input($data, $value, $extra);
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}
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/**
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* Creates an HTML form submit input tag.
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*
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* @param string|array input name or an array of HTML attributes
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* @param string input value, when using a name
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function submit($data = '', $value = '', $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array('name' => $data);
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}
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$data['type'] = 'submit';
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return form::input($data, $value, $extra);
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}
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/**
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* Creates an HTML form imagebutton input tag.
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*
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* @param string|array input name or an array of HTML attributes
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* @param string source of image
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function imagebutton($data = '', $src = '', $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array('name' => $data);
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}
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$data += array
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(
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'type' => 'image',
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'src' => $src
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);
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return '<input '.form::attributes($data).form::attributes($extra).' />';
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}
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/**
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* Creates an HTML form button input tag.
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*
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* @param string|array input name or an array of HTML attributes
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* @param string input value, when using a name
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function button($data = '', $value = '', $extra = '')
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{
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if ( ! is_array($data))
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{
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$data = array('name' => $data);
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}
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$data += array
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(
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'type' => 'button'
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);
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if (isset($data['value']))
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{
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$value = arr::remove('value', $data);
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}
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if ( ! empty($extra))
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{
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// Make sure there is 1 space before extra
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$extra = ' '.ltrim($extra);
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}
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return '<button'.form::attributes($data).$extra.'>'.html::specialchars($value).'</button>';
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}
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/**
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* Closes an open form tag.
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*
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* @param string string to be attached after the closing tag
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* @return string
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*/
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public static function close($extra = '')
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{
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return '</form>'."\n".$extra;
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}
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/**
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* Creates an HTML form label tag.
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*
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* @param string|array label "for" name or an array of HTML attributes
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* @param string label text or HTML
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* @param string a string to be attached to the end of the attributes
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* @return string
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*/
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public static function label($data = '', $text = '', $extra = '')
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{
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if ( ! is_array($data))
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{
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if (strpos($data, '[') !== FALSE)
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{
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$data = preg_replace('/\[.*\]/', '', $data);
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}
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$data = empty($data) ? array() : array('for' => $data);
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}
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if ( ! empty($extra))
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{
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// Make sure there is 1 space before extra
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$extra = ' '.ltrim($extra);
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}
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return '<label'.form::attributes($data).$extra.'>'.$text.'</label>';
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}
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/**
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* Sorts a key/value array of HTML attributes, putting form attributes first,
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* and returns an attribute string.
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*
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* @param array HTML attributes array
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* @return string
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*/
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public static function attributes($attr)
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{
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if (empty($attr))
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return '';
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//napovedu odstranime - nechceme ji renderovat v inputu...
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unset($attr['help']);
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unset($attr['additional_info']);
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if ( ! empty($attr['name']) AND
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(
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(strpos($attr['name'], '[') === FALSE) OR
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(preg_match("/^\w+\[\]$/", $attr['name']))
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) AND empty($attr['id']))
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{
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$attr['id'] = str_replace('[]', '', $attr['name']);
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}
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$order = array
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(
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'type',
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'id',
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'name',
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'value',
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'src',
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'size',
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'maxlength',
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'rows',
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'cols',
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'accept',
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'tabindex',
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'accesskey',
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'align',
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'alt',
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'title',
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'class',
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'style',
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'selected',
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'checked',
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'readonly',
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'disabled'
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);
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$sorted = array();
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foreach($order as $key)
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{
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if (isset($attr[$key]))
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{
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$sorted[$key] = $attr[$key];
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}
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}
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$sorted = array_merge($sorted, $attr);
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return html::attributes($sorted);
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}
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/**
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* Creates hidden input names and values from input array
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*
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* @author Michal Kliment
|
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* @param type $array
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* @param type $input
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* @param type $prefix
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*/
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public static function create_hiddens (&$array, $input, $prefix)
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{
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foreach ($input as $key => $val)
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{
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$name = $prefix !='' ? $prefix."[".$key."]" : $key;
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if (!is_array($val))
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{
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$array[] = array
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(
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'name' => $name,
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'value' => $val
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);
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}
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else
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self::create_hiddens ($array, $val, $name);
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}
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}
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} // End form
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