* Copyright (c) 2006, Cake Software Foundation, Inc. * 1785 E. Sahara Avenue, Suite 490-204 * Las Vegas, Nevada 89104 * * Licensed under The MIT License * Redistributions of files must retain the above copyright notice. * * @filesource * @copyright Copyright (c) 2006, Cake Software Foundation, Inc. * @link http://www.cakefoundation.org/projects/info/cakephp CakePHP Project * @package cake * @subpackage cake.cake.libs.view.helpers * @since CakePHP v 0.9.1 * @version $Revision$ * @modifiedby $LastChangedBy$ * @lastmodified $Date$ * @license http://www.opensource.org/licenses/mit-license.php The MIT License */ /** * Html Helper class for easy use of HTML widgets. * * HtmlHelper encloses all methods needed while working with HTML pages. * * @package cake * @subpackage cake.cake.libs.view.helpers */ class HtmlHelper extends Helper { /************************************************************************* * Public variables *************************************************************************/ /**#@+ * @access public */ /** * Base URL * * @var string */ var $base = null; /** * URL to current action. * * @var string */ var $here = null; /** * Parameter array. * * @var array */ var $params = array(); /** * Current action. * * @var string */ var $action = null; /** * Enter description here... * * @var array */ var $data = null; /**#@-*/ /************************************************************************* * Private variables *************************************************************************/ /**#@+ * @access private */ /** * Breadcrumbs. * * @var array * @access private */ var $_crumbs = array(); /** * Document type definitions * * @var array * @access private */ var $__docTypes = array( 'html4-strict' => '', 'html4-trans' => '', 'html4-frame' => '', 'xhtml-strict' => '', 'xhtml-trans' => '', 'xhtml-frame' => '', 'xhtml11' => '' ); /** * Adds a link to the breadcrumbs array. * * @param string $name Text for link * @param string $link URL for link */ function addCrumb($name, $link) { $this->_crumbs[] = array($name, $link); } /** * Returns a doctype string. * * Possible doctypes: * + html4-strict: HTML4 Strict. * + html4-trans: HTML4 Transitional. * + html4-frame: HTML4 Frameset. * + xhtml-strict: XHTML1 Strict. * + xhtml-trans: XHTML1 Transitional. * + xhtml-frame: XHTML1 Frameset. * + xhtml11: XHTML1.1. * * @param string $type Doctype to use. * @return string Doctype. */ function docType($type = 'xhtml-strict') { if (isset($this->__docTypes[$type])) { return $this->output($this->__docTypes[$type]); } } /** * Creates a link to an external resource * * @param string $title The title of the external resource * @param mixed $url The address of the external resource * @param array $attributes * @return string */ function meta($title = null, $url = null, $attributes = array(), $inline = true) { $types = array('html' => 'text/html', 'rss' => 'application/rss+xml', 'atom' => 'application/atom+xml'); if (!isset($attributes['type']) && is_array($url) && isset($url['ext'])) { if (in_array($url['ext'], array_keys($types))) { $attributes['type'] = $url['ext']; } else { $attributes['type'] = 'rss'; } } else { $attributes['type'] = 'rss'; } if (isset($attributes['type']) && in_array($attributes['type'], array_keys($types))) { $attributes['type'] = $types[$attributes['type']]; } if (!isset($attributes['rel'])) { $attributes['rel'] = 'alternate'; } $out = $this->output(sprintf($this->tags['metalink'], $this->url($url, true), $title, $this->_parseAttributes($attributes))); if ($inline) { return $out; } else { $this->view->addScript($out); } } /** * Returns a charset META-tag. * * @param string $charset * @return string */ function charset($charset = 'UTF-8') { return $this->output(sprintf($this->tags['charset'], $charset)); } /** * Creates an HTML link. * * If $url starts with "http://" this is treated as an external link. Else, * it is treated as a path to controller/action and parsed with the * HtmlHelper::url() method. * * If the $url is empty, $title is used instead. * * @param string $title The content of the A tag. * @param mixed $url Cake-relative URL or array of URL parameters, or external URL (starts with http://) * @param array $htmlAttributes Array of HTML attributes. * @param string $confirmMessage Confirmation message. * @param boolean $escapeTitle Whether or not the text in the $title variable should be HTML escaped. * @return string An element. */ function link($title, $url = null, $htmlAttributes = null, $confirmMessage = false, $escapeTitle = true) { if ($escapeTitle) { $title = htmlspecialchars($title, ENT_QUOTES); } $url = $url ? $url : $title; if ($confirmMessage) { $confirmMessage = htmlspecialchars($confirmMessage, ENT_NOQUOTES); $confirmMessage = str_replace("'", "\'", $confirmMessage); $confirmMessage = str_replace('"', '"', $confirmMessage); $htmlAttributes['onclick'] = "return confirm('{$confirmMessage}');"; } $output = sprintf($this->tags['link'], $this->url($url), $this->_parseAttributes($htmlAttributes), $title); return $this->output($output); } /** * Creates a link element for CSS stylesheets. * * @param string $path Path to CSS file * @param string $rel Rel attribute. Defaults to "stylesheet". * @param array $htmlAttributes Array of HTML attributes. * @param boolean $inline * @return string CSS or tag, depending on the type of link. */ function css($path, $rel = null, $htmlAttributes = array(), $inline = true) { $url = "{$this->webroot}" . (COMPRESS_CSS ? 'c' : '') . $this->themeWeb . CSS_URL . $path . ".css"; if ($rel == 'import') { $out = sprintf($this->tags['style'], $this->parseHtmlOptions($htmlAttributes, null, '', ' '), '@import url(' . $url . ');'); } else { if ($rel == null) { $rel = 'stylesheet'; } $out = sprintf($this->tags['css'], $rel, $url, $this->parseHtmlOptions($htmlAttributes, null, '', ' ')); } $out = $this->output($out); if ($inline) { return $out; } else { $this->view->addScript($out); } } /** * Creates a submit widget. * * @param string $caption Text on submit button * @param array $htmlAttributes Array of HTML attributes. * @return string */ function submit($caption = 'Submit', $htmlAttributes = null) { $htmlAttributes['value'] = $caption; return $this->output(sprintf($this->tags['submit'], $this->_parseAttributes($htmlAttributes, null, '', ' '))); } /** * Creates a password input widget. * * @param string $fieldName Name of a field, like this "Modelname/fieldname" * @param array $htmlAttributes Array of HTML attributes. * @return string */ function password($fieldName, $htmlAttributes = null) { $htmlAttributes = $this->__value($htmlAttributes, $fieldName); $htmlAttributes = $this->domId($htmlAttributes); if ($this->tagIsInvalid()) { $htmlAttributes = $this->addClass($htmlAttributes, 'form_error'); } return $this->output(sprintf($this->tags['password'], $this->model(), $this->field(), $this->_parseAttributes($htmlAttributes, null, ' ', ' '))); } /** * Creates a textarea widget. * * @param string $fieldName Name of a field, like this "Modelname/fieldname" * @param array $htmlAttributes Array of HTML attributes. * @return string */ function textarea($fieldName, $htmlAttributes = array()) { $htmlAttributes = $this->__value($htmlAttributes, $fieldName); $value = null; if (isset($htmlAttributes['value']) && !empty($htmlAttributes['value'])) { $value = $htmlAttributes['value']; unset($htmlAttributes['value']); } $htmlAttributes = $this->domId($htmlAttributes); if ($this->tagIsInvalid()) { $htmlAttributes = $this->addClass($htmlAttributes, 'form_error'); } return $this->output(sprintf($this->tags['textarea'], $this->model(), $this->field(), $this->_parseAttributes($htmlAttributes, null, ' '), $value)); } /** * Creates a checkbox widget. * * @param string $fieldName Name of a field, like this "Modelname/fieldname" * @deprecated string $title * @param array $htmlAttributes Array of HTML attributes. * @return string */ function checkbox($fieldName, $title = null, $htmlAttributes = null) { $value = $this->tagValue($fieldName); $notCheckedValue = 0; if (isset($htmlAttributes['checked'])) { if ($htmlAttributes['checked'] == 'checked' || intval($htmlAttributes['checked']) === 1 || $htmlAttributes['checked'] === true) { $htmlAttributes['checked'] = 'checked'; } else { $htmlAttributes['checked'] = null; $notCheckedValue = -1; } } else { if (isset($htmlAttributes['value'])) { $htmlAttributes['checked'] = ($htmlAttributes['value'] == $value) ? 'checked' : null; if ($htmlAttributes['checked'] == '0') { $notCheckedValue = -1; } } else { $model = $this->model(); $model = new $model; $db =& ConnectionManager::getDataSource($model->useDbConfig); $value = $db->boolean($value); $htmlAttributes['checked'] = $value ? 'checked' : null; $htmlAttributes['value'] = 1; } } $htmlAttributes = $this->domId($htmlAttributes); $output = $this->hidden($fieldName, array('value' => $notCheckedValue, 'id' => $htmlAttributes['id'] . '_'), true); $output .= sprintf($this->tags['checkbox'], $this->model(), $this->field(), $this->_parseAttributes($htmlAttributes, null, '', ' ')); return $this->output($output); } /** * Creates file input widget. * * @param string $fieldName Name of a field, like this "Modelname/fieldname" * @param array $htmlAttributes Array of HTML attributes. * @return string */ function file($fieldName, $htmlAttributes = null) { if (strpos($fieldName, '/')) { $this->setFormTag($fieldName); $htmlAttributes = $this->domId($htmlAttributes); return $this->output(sprintf($this->tags['file'], $this->model(), $this->field(), $this->_parseAttributes($htmlAttributes, null, '', ' '))); } return $this->output(sprintf($this->tags['file_no_model'], $fieldName, $this->_parseAttributes($htmlAttributes, null, '', ' '))); } /** * Returns the breadcrumb trail as a sequence of »-separated links. * * @param string $separator Text to separate crumbs. * @param string $startText This will be the first crumb, if false it defaults to first crumb in array * @return string */ function getCrumbs($separator = '»', $startText = false) { if (count($this->_crumbs)) { $out = array(); if ($startText) { $out[] = $this->link($startText, '/'); } foreach($this->_crumbs as $crumb) { $out[] = $this->link($crumb[0], $crumb[1]); } return $this->output(join($separator, $out)); } else { return null; } } /** * Creates a hidden input field. * * @param string $fieldName Name of a field, like this "Modelname/fieldname" * @param array $htmlAttributes Array of HTML attributes. * @return string */ function hidden($fieldName, $htmlAttributes = array()) { $htmlAttributes = $this->__value($htmlAttributes, $fieldName); $htmlAttributes = $this->domId($htmlAttributes); return $this->output(sprintf($this->tags['hidden'], $this->model(), $this->field(), $this->_parseAttributes($htmlAttributes, null, ' ', ' '))); } /** * Creates a formatted IMG element. * * @param string $path Path to the image file, relative to the webroot/img/ directory. * @param array $htmlAttributes Array of HTML attributes. * @return string */ function image($path, $htmlAttributes = null) { if (strpos($path, '://')) { $url = $path; } else { $url = $this->webroot . $this->themeWeb . IMAGES_URL . $path; } if (!isset($htmlAttributes['alt'])) { $htmlAttributes['alt'] = ''; } return $this->output(sprintf($this->tags['image'], $url, $this->parseHtmlOptions($htmlAttributes, null, '', ' '))); } /** * Creates a text input widget. * * @param string $fieldNamem Name of a field, like this "Modelname/fieldname" * @param array $htmlAttributes Array of HTML attributes. * @return string */ function input($fieldName, $htmlAttributes = null) { $htmlAttributes = $this->__value($htmlAttributes, $fieldName); $htmlAttributes = $this->domId($htmlAttributes); if (!isset($htmlAttributes['type'])) { $htmlAttributes['type'] = 'text'; } if ($this->tagIsInvalid()) { $htmlAttributes = $this->addClass($htmlAttributes, 'form_error'); } return $this->output(sprintf($this->tags['input'], $this->model(), $this->field(), $this->_parseAttributes($htmlAttributes, null, ' ', ' '))); } /** * Creates a set of radio widgets. * * @param string $fieldName Name of a field, like this "Modelname/fieldname" * @param array $options Radio button options array * @param array $inbetween String that separates the radio buttons. * @param array $htmlAttributes Array of HTML attributes. * @return string */ function radio($fieldName, $options, $inbetween = null, $htmlAttributes = array()) { $this->setFormTag($fieldName); $value = isset($htmlAttributes['value']) ? $htmlAttributes['value'] : $this->tagValue($fieldName); $out = array(); foreach($options as $optValue => $optTitle) { $optionsHere = array('value' => $optValue); $optValue == $value ? $optionsHere['checked'] = 'checked' : null; $parsedOptions = $this->parseHtmlOptions(array_merge($htmlAttributes, $optionsHere), null, '', ' '); $individualTagName = $this->field() . "_{$optValue}"; $out[] = sprintf($this->tags['radio'], $this->model(), $this->field(), $individualTagName, $parsedOptions, $optTitle); } $out = join($inbetween, $out); return $this->output($out ? $out : null); } /** * Returns a row of formatted and named TABLE headers. * * @param array $names Array of tablenames. * @param array $trOptions HTML options for TR elements. * @param array $thOptions HTML options for TH elements. * @return string */ function tableHeaders($names, $trOptions = null, $thOptions = null) { $out = array(); foreach($names as $arg) { $out[] = sprintf($this->tags['tableheader'], $this->parseHtmlOptions($thOptions), $arg); } $data = sprintf($this->tags['tablerow'], $this->parseHtmlOptions($trOptions), join(' ', $out)); return $this->output($data); } /** * Returns a formatted string of table rows (TR's with TD's in them). * * @param array $data Array of table data * @param array $oddTrOptionsHTML options for odd TR elements * @param array $evenTrOptionsHTML options for even TR elements * @return string Formatted HTML */ function tableCells($data, $oddTrOptions = null, $evenTrOptions = null) { if (empty($data[0]) || !is_array($data[0])) { $data = array($data); } $count = 0; foreach($data as $line) { $count++; $cellsOut = array(); foreach($line as $cell) { $cellsOut[] = sprintf($this->tags['tablecell'], null, $cell); } $options = $this->parseHtmlOptions($count % 2 ? $oddTrOptions : $evenTrOptions); $out[] = sprintf($this->tags['tablerow'], $options, join(' ', $cellsOut)); } return $this->output(join("\n", $out)); } /** * Returns value of $fieldName. Null if the tag does not exist. * * @param string $fieldName Fieldname as "Modelname/fieldname" string * @return unknown Value of the named tag. */ function tagValue($fieldName) { $this->setFormTag($fieldName); if (isset($this->params['data'][$this->model()][$this->field()])) { return h($this->params['data'][$this->model()][$this->field()]); } elseif(isset($this->data[$this->model()][$this->field()])) { return h($this->data[$this->model()][$this->field()]); } return false; } /** * Returns number of errors in a submitted FORM. * * @return int Number of errors */ function validate() { $args = func_get_args(); $errors = call_user_func_array(array(&$this, 'validateErrors'), $args); return count($errors); } /** * Validates a FORM according to the rules set up in the Model. * * @return int Number of errors */ function validateErrors() { $objects = func_get_args(); if (!count($objects)) { return false; } $errors = array(); foreach($objects as $object) { $errors = array_merge($errors, $object->invalidFields($object->data)); } return $this->validationErrors = (count($errors) ? $errors : false); } /** * Returns a formatted error message for given FORM field, NULL if no errors. * * @param string $field A field name, like "Modelname/fieldname" * @param string $text Error message * @return string If there are errors this method returns an error message, else NULL. */ function tagErrorMsg($field, $text) { $error = 1; $this->setFormTag($field); if ($error == $this->tagIsInvalid()) { return sprintf('
', is_array($text) ? (empty($text[$error - 1]) ? 'Error in field' : $text[$error - 1]) : $text); } else { return null; } } /**#@-*/ /************************************************************************* * Renamed methods *************************************************************************/ /** * Returns a formatted SELECT element. * * @param string $fieldName Name attribute of the SELECT * @param array $optionElements Array of the OPTION elements (as 'value'=>'Text' pairs) to be used in the SELECT element * @param mixed $selected Selected option * @param array $selectAttr Array of HTML options for the opening SELECT element * @param array $optionAttr Array of HTML options for the enclosed OPTION elements * @param boolean $show_empty If true, the empty select option is shown * @return string Formatted SELECT element */ function selectTag($fieldName, $optionElements, $selected = null, $selectAttr = null, $optionAttr = null, $showEmpty = true) { $this->setFormTag($fieldName); if ($this->tagIsInvalid()) { if (isset($selectAttr['class']) && trim($selectAttr['class']) != "") { $selectAttr['class'] .= ' form_error'; } else { $selectAttr['class'] = 'form_error'; } } $selectAttr = $this->domId($selectAttr); if (!is_array($optionElements)) { return null; } if (!isset($selected)) { $selected = $this->tagValue($fieldName); } if (isset($selectAttr) && array_key_exists("multiple", $selectAttr)) { $select[] = sprintf($this->tags['selectmultiplestart'], $this->model(), $this->field(), $this->parseHtmlOptions($selectAttr)); } else { $select[] = sprintf($this->tags['selectstart'], $this->model(), $this->field(), $this->parseHtmlOptions($selectAttr)); } if ($showEmpty == true) { $select[] = sprintf($this->tags['selectempty'], $this->parseHtmlOptions($optionAttr)); } foreach($optionElements as $name => $title) { $optionsHere = $optionAttr; if (($selected !== null) && ($selected == $name)) { $optionsHere['selected'] = 'selected'; } else if(is_array($selected) && in_array($name, $selected)) { $optionsHere['selected'] = 'selected'; } $select[] = sprintf($this->tags['selectoption'], $name, $this->parseHtmlOptions($optionsHere), $title); } $select[] = sprintf($this->tags['selectend']); return $this->output(implode("\n", $select)); } /************************************************************************* * Deprecated methods *************************************************************************/ /** * Returns an HTML FORM element. * * @param string $target URL for the FORM's ACTION attribute. * @param string $type FORM type (POST/GET). * @param array $htmlAttributes * @return string An formatted opening FORM tag. * @deprecated This is very WYSIWYG unfriendly, use HtmlHelper::url() to get contents of "action" attribute. Version 0.9.2. */ function formTag($target = null, $type = 'post', $htmlAttributes = null) { $htmlAttributes['action'] = $this->url($target); $htmlAttributes['method'] = low($type) == 'get' ? 'get' : 'post'; $type == 'file' ? $htmlAttributes['enctype'] = 'multipart/form-data' : null; $token = ''; if (isset($this->params['_Token']) && !empty($this->params['_Token'])) { $token = $this->hidden('_Token/key', array('value' => $this->params['_Token']['key']), true); } return sprintf($this->tags['form'], $this->parseHtmlOptions($htmlAttributes, null, '')) . $token; } /** * Generates a nested unordered list tree from an array. * * @param array $data * @param array $htmlAttributes * @param string $bodyKey * @param string $childrenKey * @return string * @deprecated This seems useless. Version 0.9.2. */ function guiListTree($data, $htmlAttributes = null, $bodyKey = 'body', $childrenKey = 'children') { $out="