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<?php
/**
* Helper Utils class
* @package News Show Pro GK5
* @Copyright (C) 2009-2013 Gavick.com
* @ All rights reserved
* @ Joomla! is Free Software
* @license - http://www.gnu.org/licenses/gpl-2.0.html GNU/GPL
* @version $Revision: GK5 1.3.3 $
**/
// access restriction
defined('_JEXEC') or die('Restricted access');
class NSP_GK5_Utils {
// Method to cut text with specified limit value and type (characters/words)
static function cutText($text, $config, $field, $at_end = FALSE) {
$limit_value = $config[$field];
$limit_type = $config[$field . '_type'];
//
if($at_end === FALSE) {
$at_end = $config['more_text_value'];
}
// solved problem from: https://www.gavick.com/support/forums/47/12309.html?p=57464#p57464
$cck_path = JPATH_BASE . DS . 'components' . DS . 'com_cck';
if (file_exists($cck_path)) {
if(JComponentHelper::isEnabled('com_cck', true)){
// Force parsing plugin if SEBLOD is used
if($config['parse_plugins'] == FALSE) {
$text = JHtml::_('content.prepare', $text);
}
$text = trim(substr(strip_tags( $text,"<br /><br><strong></strong><p></p><i></i><b></b><span></span><ul></ul><li></li><blockquote></blockquote>"),0));
}
}
if($config['clean_xhtml'] == 1) {
$allowed_html = '';
if(strlen(trim($config['allowed_tags'])) > 0) {
$allowed_html = explode(',', $config['allowed_tags']);
$allowed_len = count($allowed_html);
for($i = 0; $i < $allowed_len; $i++) {
$allowed_html[$i] = '<' . $allowed_html[$i] . '>';
}
$allowed_html = implode('', $allowed_html);
}
if($limit_type == 'words' && $limit_value > 0){
$temp = explode(' ', strip_tags($text, $allowed_html));
if(count($temp) > $limit_value){
for($i=0; $i<$limit_value; $i++) {
$cutted[$i] = $temp[$i];
}
$cutted = implode(' ', $cutted);
$cutted = rtrim($cutted, '\'"!,.');
$text = $cutted . $at_end;
} else {
$text = strip_tags($text, $allowed_html);
}
} elseif($limit_type == 'words' && $limit_value == 0) {
return '';
} else {
if(strlen($text) > $limit_value){
$cutted = substr(strip_tags($text, $allowed_html), 0, $limit_value);
$cutted = rtrim($cutted, '\'"!,.');
$text = $cutted . $at_end;
} else {
$text = strip_tags($text, $allowed_html);
}
}
} else {
if($limit_type == 'words' && $limit_value > 0) {
$temp = explode(' ', strip_tags($text));
if(count($temp) > $limit_value){
$text = NSP_GK5_Utils::cutHTML(str_replace(array('<p>', '</p>'), '', $text), $limit_value, $limit_type);
$text .= $at_end;
}
} elseif ($limit_type == 'words' && $limit_value == 0) {
return '';
} else {
if(strlen(strip_tags($text)) > $limit_value) {
$text = NSP_GK5_Utils::cutHTML(str_replace(array('<p>', '</p>'), '', $text), $limit_value, $limit_type);
$text .= $at_end;
}
}
}
// replace unnecessary entities at end of the cutted text
$toReplace = array('&&', '&a&', '&am&', '&&', '&q&', '&qu&', '&quo&', '"&', '&ap&', '&apo&', '&apos&');
$text = str_replace($toReplace, '&', $text);
//
return $text;
}
// Method to get Gravatar avatar
static function avatarURL($email, $size){
return 'http://www.gravatar.com/avatar/'.md5($email).'?s='.$size.'&default='.urlencode(JURI::root().'modules/mod_news_pro_gk5/interface/images/avatar.png');
}
//
static function parseCropRules($config) {
// parse the crop rules
$temp_crop_rules = explode(';', $config['crop_rules']);
$final_crop_rules = array();
// parse every rule
foreach($temp_crop_rules as $rule) {
// divide the rule for the name and data
$temp_rule = explode('=',$rule);
// validation of format
if(count($temp_rule) == 2) {
// create the structure for rule
$final_rule = array(
'type' => $temp_rule[0],
'top' => 0,
'right' => 0,
'bottom' => 0,
'left' => 0
);
// check the type of the rule - class-based or size-based
if(strpos($temp_rule[0], ':') !== FALSE) {
// if the rule is size-based - divide the size
$temp_size = explode(':', $temp_rule[0]);
// validation of format
if(count($temp_size) == 2) {
// and put to the array the base size of image
$final_rule['type'] = array(
'width' => $temp_size[0],
'height' => $temp_size[1]
);
}
}
// get the data about cropping
$temp_crop_size = explode(':', $temp_rule[1]);
// validation of format
if(count($temp_crop_size) == 4) {
// put the data to the structure
$final_rule['top'] = $temp_crop_size[0];
$final_rule['right'] = $temp_crop_size[1];
$final_rule['bottom'] = $temp_crop_size[2];
$final_rule['left'] = $temp_crop_size[3];
}
// override the old rule string with the array structure
array_push($final_crop_rules, $final_rule);
}
}
// return the result
return $final_crop_rules;
}
// Method to cut the HTML string
static function cutHTML($text, $limit, $type){
$output = new cutHTMLString($text, $limit, $type);
return $output->cutText();
}
}
class cutHTMLString{
function __construct($string, $limit, $type){
// temporary container for the operation
$this->tempDiv = new DomDocument;
$this->tempDiv->loadXML('<div>'.$string.'</div>');
// counters
$this->charCount = 0;
$this->wordCount = 0;
// limit value
$this->limit = $limit;
// limit type
$this->limitType = $type;
}
function cutText(){
// create empty document to store new html
$this->newDiv = new DomDocument;
// cut the string by parsing through each element
$this->search($this->tempDiv->documentElement, $this->newDiv);
//
return $this->newDiv->saveHTML();
}
function search($parseDiv, $newParent){
foreach($parseDiv->childNodes as $el){
// not text node
if($el->nodeType != 3){
$newEl = $this->newDiv->importNode($el,true);
if(count($el->childNodes) === 0){
$newParent->appendChild($newEl);
continue;
}
$this->removeNode($newEl);
$newParent->appendChild($newEl);
$res = $this->search($el, $newEl);
if($res) {
return $res;
} else {
continue;
}
}
// the limit of the char count reached
if($this->limitType == 'words') {
// create the words array
$words_array = explode(' ', $el->nodeValue);
//
if(count($words_array) + $this->wordCount >= $this->limit){
$newEl = $this->newDiv->importNode($el);
$newEl->nodeValue = '';
for($i = 0; $i <= $this->limit - $this->wordCount; $i++) {
if(isset($words_array[$i])) {
$newEl->nodeValue .= ' '.$words_array[$i];
}
}
$newParent->appendChild($newEl);
return true;
}
//
$newEl = $this->newDiv->importNode($el);
$newParent->appendChild($newEl);
$this->wordCount += count($words_array);
} else {
//
if(strlen($el->nodeValue) + $this->charCount >= $this->limit){
$newEl = $this->newDiv->importNode($el);
$newEl->nodeValue = substr($newEl->nodeValue, 0, $this->limit - $this->charCount);
$newParent->appendChild($newEl);
return true;
}
//
$newEl = $this->newDiv->importNode($el);
$newParent->appendChild($newEl);
$this->charCount += strlen($newEl->nodeValue);
}
}
return false;
}
function removeNode($node) {
while(isset($node->firstChild)) {
$this->removeNode($node->firstChild);
$node->removeChild($node->firstChild);
}
}
}
/* EOF */