File "html.php"
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<?php
/**
* @package Joomla.Platform
* @subpackage Document
*
* @copyright Copyright (C) 2005 - 2011 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('JPATH_PLATFORM') or die;
jimport('joomla.application.module.helper');
/**
* DocumentHTML class, provides an easy interface to parse and display a HTML document
*
* @package Joomla.Platform
* @subpackage Document
* @since 11.1
*/
jimport('joomla.document.document');
class JDocumentHTML extends JDocument
{
/**
* Array of Header <link> tags
*
* @var array
* @since 11.1
*/
public $_links = array();
/**
* Array of custom tags
*
* @var array
* @since 11.1
*/
public $_custom = array();
/**
* Name of the template
*
* @var string
* @since 11.1
*/
public $template = null;
/**
* Base url
*
* @var string
* @since 11.1
*/
public $baseurl = null;
/**
* Array of template parameterss
*
* @var array
* @since 11.1
*/
public $params = null;
/**
* File name
*
* @var array
* @since 11.1
*/
public $_file = null;
/**
* String holding parsed template
*
* @var string
* @since 11.1
*/
protected $_template = '';
/**
* Array of parsed template JDoc tags
*
* @var array
* @since 11.1
*/
protected $_template_tags = array();
/**
* Integer with caching setting
*
* @var integer
* @since 11.1
*/
protected $_caching = null;
/**
* Class constructor
*
* @param array $options Associative array of options
*
* @since 11.1
*/
public function __construct($options = array())
{
parent::__construct($options);
// Set document type
$this->_type = 'html';
// Set default mime type and document metadata (meta data syncs with mime type by default)
$this->setMetaData('Content-Type', 'text/html', true);
$this->setMetaData('robots', 'index, follow');
}
/**
* Get the HTML document head data
*
* @return array The document head data in array form
*
* @since 11.1
*/
public function getHeadData()
{
$data = array();
$data['title'] = $this->title;
$data['description']= $this->description;
$data['link'] = $this->link;
$data['metaTags'] = $this->_metaTags;
$data['links'] = $this->_links;
$data['styleSheets']= $this->_styleSheets;
$data['style'] = $this->_style;
$data['scripts'] = $this->_scripts;
$data['script'] = $this->_script;
$data['custom'] = $this->_custom;
return $data;
}
/**
* Set the HTML document head data
*
* @param array $data The document head data in array form
*
* @return void
*
* @since 11.1
*/
public function setHeadData($data)
{
if (empty($data) || !is_array($data)) {
return;
}
$this->title = (isset($data['title']) && !empty($data['title'])) ? $data['title'] : $this->title;
$this->description = (isset($data['description']) && !empty($data['description'])) ? $data['description'] : $this->description;
$this->link = (isset($data['link']) && !empty($data['link'])) ? $data['link'] : $this->link;
$this->_metaTags = (isset($data['metaTags']) && !empty($data['metaTags'])) ? $data['metaTags'] : $this->_metaTags;
$this->_links = (isset($data['links']) && !empty($data['links'])) ? $data['links'] : $this->_links;
$this->_styleSheets = (isset($data['styleSheets']) && !empty($data['styleSheets'])) ? $data['styleSheets'] : $this->_styleSheets;
$this->_style = (isset($data['style']) && !empty($data['style'])) ? $data['style'] : $this->_style;
$this->_scripts = (isset($data['scripts']) && !empty($data['scripts'])) ? $data['scripts'] : $this->_scripts;
$this->_script = (isset($data['script']) && !empty($data['script'])) ? $data['script'] : $this->_script;
$this->_custom = (isset($data['custom']) && !empty($data['custom'])) ? $data['custom'] : $this->_custom;
}
/**
* Merge the HTML document head data
*
* @param array $data The document head data in array form
*
* @return void
*
* @since 11.1
*/
public function mergeHeadData($data)
{
if (empty($data) || !is_array($data)) {
return;
}
$this->title = (isset($data['title']) && !empty($data['title']) && !stristr($this->title, $data['title'])) ? $this->title.$data['title'] : $this->title;
$this->description = (isset($data['description']) && !empty($data['description']) && !stristr($this->description, $data['description'])) ? $this->description. $data['description'] : $this->description;
$this->link = (isset($data['link'])) ? $data['link'] : $this->link;
if (isset($data['metaTags'])) {
foreach($data['metaTags'] AS $type1=>$data1)
{
$booldog = $type1 == 'http-equiv' ? true : false;
foreach($data1 AS $name2=>$data2)
{
$this->setMetaData($name2, $data2, $booldog);
}
}
}
$this->_links = (isset($data['links']) && !empty($data['links']) && is_array($data['links'])) ? array_unique(array_merge($this->_links, $data['links'])) : $this->_links;
$this->_styleSheets = (isset($data['styleSheets']) && !empty($data['styleSheets']) && is_array($data['styleSheets'])) ? array_merge($this->_styleSheets, $data['styleSheets']) : $this->_styleSheets;
if (isset($data['style'])) {
foreach($data['style'] AS $type=>$stdata)
{
if (!isset($this->_style[strtolower($type)]) || !stristr($this->_style[strtolower($type)],$stdata)) {
$this->addStyleDeclaration($stdata, $type);
}
}
}
$this->_scripts = (isset($data['scripts']) && !empty($data['scripts']) && is_array($data['scripts'])) ? array_merge($this->_scripts, $data['scripts']) : $this->_scripts;
if (isset($data['script'])) {
foreach($data['script'] AS $type=>$sdata)
{
if (!isset($this->_script[strtolower($type)]) || !stristr($this->_script[strtolower($type)],$sdata)) {
$this->addScriptDeclaration($sdata, $type);
}
}
}
$this->_custom = (isset($data['custom']) && !empty($data['custom'])&& is_array($data['custom'])) ? array_unique(array_merge($this->_custom, $data['custom'])) : $this->_custom;
}
/**
* Adds <link> tags to the head of the document
*
* $relType defaults to 'rel' as it is the most common relation type used.
* ('rev' refers to reverse relation, 'rel' indicates normal, forward relation.)
* Typical tag: <link href="index.php" rel="Start">
*
* @param string $href The link that is being related.
* @param string $relation Relation of link.
* @param string $relType Relation type attribute. Either rel or rev (default: 'rel').
* @param array $attributes Associative array of remaining attributes.
*
* @return void
*
* @since 11.1
*/
public function addHeadLink($href, $relation, $relType = 'rel', $attribs = array())
{
$this->_links[$href]['relation'] = $relation;
$this->_links[$href]['relType'] = $relType;
$this->_links[$href]['attribs'] = $attribs;
}
/**
* Adds a shortcut icon (favicon)
*
* This adds a link to the icon shown in the favorites list or on
* the left of the url in the address bar. Some browsers display
* it on the tab, as well.
*
* @param string $href The link that is being related.
* @param string $type File type
* @param string $relation Relation of link
*
* @return void
*
* @since 11.1
*/
public function addFavicon($href, $type = 'image/vnd.microsoft.icon', $relation = 'shortcut icon')
{
$href = str_replace('\\', '/', $href);
$this->addHeadLink($href, $relation, 'rel', array('type' => $type));
}
/**
* Adds a custom HTML string to the head block
*
* @param string $html The HTML to add to the head
*
* @return void
*
* @since 11.1
*/
public function addCustomTag($html)
{
$this->_custom[] = trim($html);
}
/**
* Get the contents of a document include
*
* @param string $type The type of renderer
* @param string $name The name of the element to render
* @param array $attribs Associative array of remaining attributes.
*
* @return The output of the renderer
*
* @since 11.1
*/
public function getBuffer($type = null, $name = null, $attribs = array())
{
// If no type is specified, return the whole buffer
if ($type === null) {
return parent::$_buffer;
}
$result = null;
if (isset(parent::$_buffer[$type][$name])) {
return parent::$_buffer[$type][$name];
}
// If the buffer has been explicitly turned off don't display or attempt to render
if ($result === false) {
return null;
}
$renderer = $this->loadRenderer($type);
if ($this->_caching == true && $type == 'modules') {
$cache = JFactory::getCache('com_modules','');
$hash = md5(serialize(array($name, $attribs, $result, $renderer)));
$cbuffer = $cache->get('cbuffer_'.$type);
if (isset($cbuffer[$hash])) {
return JCache::getWorkarounds($cbuffer[$hash], array('mergehead' => 1));
} else {
$options = array();
$options['nopathway'] = 1;
$options['nomodules'] = 1;
$options['modulemode'] = 1;
$this->setBuffer($renderer->render($name, $attribs, $result), $type, $name);
$data = parent::$_buffer[$type][$name];
$tmpdata = JCache::setWorkarounds($data, $options);
$cbuffer[$hash] = $tmpdata;
$cache->store($cbuffer, 'cbuffer_'.$type);
}
} else {
$this->setBuffer($renderer->render($name, $attribs, $result), $type, $name);
}
return parent::$_buffer[$type][$name];
}
/**
* Set the contents a document includes
*
* @param string $content The content to be set in the buffer.
* @param array $options Array of optional elements.
*
* @return void
*
* @since 11.1
*/
public function setBuffer($content, $options = array())
{
// The following code is just for backward compatibility.
if (func_num_args() > 1 && !is_array($options)) {
$args = func_get_args(); $options = array();
$options['type'] = $args[1];
$options['name'] = (isset($args[2])) ? $args[2] : null;
}
parent::$_buffer[$options['type']][$options['name']] = $content;
}
/**
* Parses the template and populates the buffer
*
* @param array $params Parameters for fetching the template
*
* @return void
*
* @since 11.1
*/
public function parse($params = array())
{
$this->_fetchTemplate($params);
$this->_parseTemplate();
}
/**
* Outputs the template to the browser.
*
* @param boolean $cache If true, cache the output
* @param array $params Associative array of attributes
*
* @return The rendered data
*
* @since 11.1
*/
public function render($caching = false, $params = array())
{
$this->_caching = $caching;
if (!empty($this->_template)) {
$data = $this->_renderTemplate();
} else {
$this->parse($params);
$data = $this->_renderTemplate();
}
parent::render();
return $data;
}
/**
* Count the modules based on the given condition
*
* @param string $condition The condition to use
*
* @return integer Number of modules found
*
* @since 11.1
*/
public function countModules($condition)
{
$result = '';
$operators = '(\+|\-|\*|\/|==|\!=|\<\>|\<|\>|\<=|\>=|and|or|xor)';
$words = preg_split('# '.$operators.' #', $condition, null, PREG_SPLIT_DELIM_CAPTURE);
for ($i = 0, $n = count($words); $i < $n; $i+=2)
{
// odd parts (modules)
$name = strtolower($words[$i]);
$words[$i] = ((isset(parent::$_buffer['modules'][$name])) && (parent::$_buffer['modules'][$name] === false)) ? 0 : count(JModuleHelper::getModules($name));
}
$str = 'return '.implode(' ', $words).';';
return eval($str);
}
/**
* Count the number of child menu items
*
* @return integer Number of child menu items
*
* @since 11.1
*/
public function countMenuChildren()
{
static $children;
if (!isset($children)) {
$dbo = JFactory::getDbo();
$app = JFactory::getApplication();
$menu = $app->getMenu();
$where = Array();
$active = $menu->getActive();
if ($active) {
$where[] = 'parent = ' . $active->id;
$where[] = 'published = 1';
$dbo->setQuery('SELECT COUNT(*) FROM #__menu WHERE '. implode(' AND ', $where));
$children = $dbo->loadResult();
} else {
$children = 0;
}
}
return $children;
}
/**
* Load a template file
*
* @param string $template The name of the template
* @param string $filename The actual filename
*
* @return string The contents of the template
*
* @since 11.1
*/
protected function _loadTemplate($directory, $filename)
{
// $component = JApplicationHelper::getComponentName();
$contents = '';
// Check to see if we have a valid template file
if (file_exists($directory . '/' . $filename))
{
// Store the file path
$this->_file = $directory . '/' . $filename;
//get the file content
ob_start();
require $directory . '/' . $filename;
$contents = ob_get_contents();
ob_end_clean();
}
// Try to find a favicon by checking the template and root folder
$path = $directory . '/';
$dirs = array($path, JPATH_BASE . '/');
foreach ($dirs as $dir)
{
$icon = $dir.'favicon.ico';
if (file_exists($icon))
{
$path = str_replace(JPATH_BASE . '/', '', $dir);
$path = str_replace('\\', '/', $path);
$this->addFavicon(JURI::base(true).'/'.$path.'favicon.ico');
break;
}
}
return $contents;
}
/**
* Fetch the template, and initialise the params
*
* @param array $params Parameters to determine the template
*
* @return void
*
* @since 11.1
*/
protected function _fetchTemplate($params = array())
{
// Check
$directory = isset($params['directory']) ? $params['directory'] : 'templates';
$filter = JFilterInput::getInstance();
$template = $filter->clean($params['template'], 'cmd');
$file = $filter->clean($params['file'], 'cmd');
if (!file_exists($directory . '/' . $template . '/' . $file)) {
$template = 'system';
}
// Load the language file for the template
$lang = JFactory::getLanguage();
// 1.5 or core then 1.6
$lang->load('tpl_'.$template, JPATH_BASE, null, false, false)
|| $lang->load('tpl_'.$template, $directory . '/' . $template, null, false, false)
|| $lang->load('tpl_'.$template, JPATH_BASE, $lang->getDefault(), false, false)
|| $lang->load('tpl_'.$template, $directory . '/' . $template, $lang->getDefault(), false, false);
// Assign the variables
$this->template = $template;
$this->baseurl = JURI::base(true);
$this->params = isset($params['params']) ? $params['params'] : new JRegistry;
// Load
$this->_template = $this->_loadTemplate($directory . '/' . $template, $file);
}
/**
* Parse a document template
*
* @return The parsed contents of the template
*
* @since 11.1
*/
protected function _parseTemplate()
{
$matches = array();
if (preg_match_all('#<jdoc:include\ type="([^"]+)" (.*)\/>#iU', $this->_template, $matches))
{
$template_tags_first = array();
$template_tags_last = array();
// Step through the jdocs in reverse order.
for ($i = count($matches[0])-1; $i >= 0; $i--) {
$type = $matches[1][$i];
$attribs = empty($matches[2][$i]) ? array() : JUtility::parseAttributes($matches[2][$i]);
$name = isset($attribs['name']) ? $attribs['name'] : null;
// Separate buffers to be executed first and last
if ($type == 'module' || $type == 'modules') {
$template_tags_first[$matches[0][$i]] = array('type'=>$type, 'name'=>$name, 'attribs'=>$attribs);
} else {
$template_tags_last[$matches[0][$i]] = array('type'=>$type, 'name'=>$name, 'attribs'=>$attribs);
}
}
// Reverse the last array so the jdocs are in forward order.
$template_tags_last = array_reverse($template_tags_last);
$this->_template_tags = $template_tags_first + $template_tags_last;
}
}
/**
* Render pre-parsed template
*
* @return string rendered template
*
* @since 11.1
*/
protected function _renderTemplate() {
$replace = array();
$with = array();
foreach($this->_template_tags AS $jdoc => $args) {
$replace[] = $jdoc;
$with[] = $this->getBuffer($args['type'], $args['name'], $args['attribs']);
}
return str_replace($replace, $with, $this->_template);
}
}