/libraries/joomla/document/html/html.php
PHP | 422 lines | 253 code | 38 blank | 131 comment | 13 complexity | 3b492be7681eee5931ff9c84192e40be MD5 | raw file
Possible License(s): LGPL-2.1, Apache-2.0
- <?php
- /**
- * @version $Id$
- * @package Joomla.Framework
- * @subpackage Document
- * @copyright Copyright (C) 2005 - 2010 Open Source Matters, Inc. All rights reserved.
- * @license GNU General Public License version 2 or later; see LICENSE.txt
- */
- defined('JPATH_BASE') or die;
- jimport('joomla.application.module.helper');
- /**
- * DocumentHTML class, provides an easy interface to parse and display an html document
- *
- * @package Joomla.Framework
- * @subpackage Document
- * @since 1.5
- */
- class JDocumentHTML extends JDocument
- {
- /**
- * Array of Header <link> tags
- *
- * @var array
- * @access private
- */
- var $_links = array();
- /**
- * Array of custom tags
- *
- * @var string
- * @access private
- */
- var $_custom = array();
- public $template = null;
- public $baseurl = null;
- public $params = null;
- public $_file = null;
- /**
- * String holding parsed template
- */
- protected $_template = '';
- /**
- * Array of parsed template JDoc tags
- */
- protected $_template_tags = array();
- /**
- * Class constructor
- *
- * @access public
- * @param array $options Associative array of options
- */
- function __construct($options = array())
- {
- parent::__construct($options);
- //set document type
- $this->_type = 'html';
- //set mime type
- $this->_mime = 'text/html';
- //set default document metadata
- $this->setMetaData('Content-Type', $this->_mime . '; charset=' . $this->_charset , true);
- $this->setMetaData('robots', 'index, follow');
- }
- /**
- * Get the html document head data
- *
- * @access public
- * @return array The document head data in array form
- */
- 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
- *
- * @access public
- * @param array $data The document head data in array form
- */
- function setHeadData($data)
- {
- $this->title = (isset($data['title'])) ? $data['title'] : $this->title;
- $this->description = (isset($data['description'])) ? $data['description'] : $this->description;
- $this->link = (isset($data['link'])) ? $data['link'] : $this->link;
- $this->_metaTags = (isset($data['metaTags'])) ? $data['metaTags'] : $this->_metaTags;
- $this->_links = (isset($data['links'])) ? $data['links'] : $this->_links;
- $this->_styleSheets = (isset($data['styleSheets'])) ? $data['styleSheets'] : $this->_styleSheets;
- $this->_style = (isset($data['style'])) ? $data['style'] : $this->_style;
- $this->_scripts = (isset($data['scripts'])) ? $data['scripts'] : $this->_scripts;
- $this->_script = (isset($data['script'])) ? $data['script'] : $this->_script;
- $this->_custom = (isset($data['custom'])) ? $data['custom'] : $this->_custom;
- }
- /**
- * Adds <link> tags to the head of the document
- *
- * <p>$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"></p>
- *
- * @access public
- * @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 $attributes Associative array of remaining attributes.
- * @return void
- */
- function addHeadLink($href, $relation, $relType = 'rel', $attribs = array())
- {
- $attribs = JArrayHelper::toString($attribs);
- $generatedTag = '<link href="'.$href.'" '.$relType.'="'.$relation.'" '.$attribs;
- $this->_links[] = $generatedTag;
- }
- /**
- * Adds a shortcut icon (favicon)
- *
- * <p>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.</p>
- *
- * @param string $href The link that is being related.
- * @param string $type File type
- * @param string $relation Relation of link
- * @access public
- */
- function addFavicon($href, $type = 'image/x-icon', $relation = 'shortcut icon')
- {
- $href = str_replace('\\', '/', $href);
- $this->_links[] = '<link href="'.$href.'" rel="'.$relation.'" type="'.$type.'"';
- }
- /**
- * Adds a custom html string to the head block
- *
- * @param string The html to add to the head
- * @access public
- * @return void
- */
- function addCustomTag($html)
- {
- $this->_custom[] = trim($html);
- }
- /**
- * Get the contents of a document include
- *
- * @access public
- * @param string $type The type of renderer
- * @param string $name The name of the element to render
- * @param array $attribs Associative array of remaining attributes.
- * @return The output of the renderer
- */
- function getBuffer($type = null, $name = null, $attribs = array())
- {
- // If no type is specified, return the whole buffer
- if ($type === null) {
- return $this->_buffer;
- }
- $result = null;
- if (isset($this->_buffer[$type][$name])) {
- return $this->_buffer[$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);
- $this->setBuffer($renderer->render($name, $attribs, $result), $type, $name);
- return $this->_buffer[$type][$name];
- }
- /**
- * Set the contents a document include
- *
- * @param string $content The content to be set in the buffer.
- * @param array $options Array of optional elements.
- */
- public function setBuffer($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;
- }
- $this->_buffer[$options['type']][$options['name']] = $content;
- }
- /**
- * Parses the template and populates the buffer
- *
- * @access public
- * @param array parameters for fetching the template
- */
- function parse($params = array()) {
- $this->_fetchTemplate($params);
- $this->_parseTemplate();
- }
- /**
- * Outputs the template to the browser.
- *
- * @access public
- * @param boolean $cache If true, cache the output
- * @param array $params Associative array of attributes
- * @return The rendered data
- */
- function render($caching = false, $params = array())
- {
- if (!empty($this->_template)) {
- $data = $this->_renderTemplate();
- } else {
- $this->parse($params);
- $data = $this->_renderTemplate();
- }
- parent::render();
- return $data;
- }
- /**
- * Count the modules based on the given condition
- *
- * @access public
- * @param string $condition The condition to use
- * @return integer Number of modules found
- */
- function countModules($condition)
- {
- $result = '';
- $words = explode(' ', $condition);
- for ($i = 0, $n = count($words); $i < $n; $i+=2)
- {
- // odd parts (modules)
- $name = strtolower($words[$i]);
- $words[$i] = ((isset($this->_buffer['modules'][$name])) && ($this->_buffer['modules'][$name] === false)) ? 0 : count(JModuleHelper::getModules($name));
- }
- $str = 'return '.implode(' ', $words).';';
- return eval($str);
- }
- /**
- * Count the number of child menu items
- *
- * @access public
- * @return integer Number of child menu items
- */
- function countMenuChildren() {
- static $children;
- if (!isset($children)) {
- $dbo = &JFactory::getDbo();
- $menu = &JSite::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 $filename The actual filename
- * @return string The contents of the template
- */
- function _loadTemplate($directory, $filename)
- {
- // $component = JApplicationHelper::getComponentName();
- $contents = '';
- //Check to see if we have a valid template file
- if (file_exists($directory.DS.$filename))
- {
- //store the file path
- $this->_file = $directory.DS.$filename;
- //get the file content
- ob_start();
- require_once $directory.DS.$filename;
- $contents = ob_get_contents();
- ob_end_clean();
- }
- // Try to find a favicon by checking the template and root folder
- $path = $directory . DS;
- $dirs = array($path, JPATH_BASE.DS);
- foreach ($dirs as $dir)
- {
- $icon = $dir.'favicon.ico';
- if (file_exists($icon))
- {
- $path = str_replace(JPATH_BASE . DS, '', $dir);
- $path = str_replace('\\', '/', $path);
- $this->addFavicon(JURI::base(true).'/'.$path.'favicon.ico');
- break;
- }
- }
- return $contents;
- }
- /**
- * Fetch the template, and initialise the params
- *
- * @param array parameters to determine the template
- */
- protected function _fetchTemplate($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($directory.DS.$template.DS.$file)) {
- $template = 'system';
- }
- // Load the language file for the template
- $lang = &JFactory::getLanguage();
- // 1.6
- $lang->load('tpl_'.$template, $directory.DS.$template);
- // 1.5 or core
- $lang->load('tpl_'.$template);
- // Assign the variables
- $this->template = $template;
- $this->baseurl = JURI::base(true);
- $this->params = isset($params['params']) ? $params['params'] : new JParameter;
- // load
- $this->_template = $this->_loadTemplate($directory.DS.$template, $file);
- }
- /**
- * Parse a document template
- *
- * @access public
- * @return The parsed contents of the template
- */
- function _parseTemplate()
- {
- $replace = array();
- $matches = array();
- if (preg_match_all('#<jdoc:include\ type="([^"]+)" (.*)\/>#iU', $this->_template, $matches))
- {
- $matches[0] = array_reverse($matches[0]);
- $matches[1] = array_reverse($matches[1]);
- $matches[2] = array_reverse($matches[2]);
- $count = count($matches[1]);
- for ($i = 0; $i < $count; $i++)
- {
- $attribs = JUtility::parseAttributes($matches[2][$i]);
- $type = $matches[1][$i];
- $name = isset($attribs['name']) ? $attribs['name'] : null;
- $this->_template_tags[$matches[0][$i]] = array('type'=>$type, 'name' => $name, 'attribs' => $attribs);
- }
- }
- }
- /**
- * Render pre-parsed template
- *
- * @return string rendered template
- */
- 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);
- }
- }