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<?php
/**
* @package FOF
* @copyright 2010-2016 Nicholas K. Dionysopoulos / Akeeba Ltd
* @license GNU GPL version 2 or later
*/
namespace FOF30\Template;
use FOF30\Container\Container;
use FOF30\Less\Less;
use JDocument;
defined('_JEXEC') or die;
/**
* A utility class to load view templates, media files and modules.
*
* @since 1.0
*/
class Template
{
/**
* The component container
*
* @var Container
*/
protected $container = null;
/**
* Public constructor
*
* @param Container $container The component container
*/
function __construct(Container $container)
{
$this->container = $container;
}
/**
* Add a CSS file to the page generated by the CMS
*
* @param string $uri A path definition understood by parsePath, e.g. media://com_example/css/foo.css
* @param string $version (optional) Version string to be added to the URL
* @param string $type MIME type of the stylesheeet
* @param string $media Media target definition of the style sheet, e.g. "screen"
* @param array $attribs Array of attributes
*
* @see self::parsePath
*
* @return void
*/
public function addCSS($uri, $version = null, $type = 'text/css', $media = null, $attribs = array())
{
if ($this->container->platform->isCli())
{
return;
}
$method = 'addStyleSheet' . (!empty($version) ? 'Version' : '');
$document = $this->container->platform->getDocument();
if (!method_exists($document, $method))
{
return;
}
$url = $this->container->template->parsePath($uri);
if (empty($version))
{
$document->addStyleSheet($url, $type, $media, $attribs);
return;
}
$document->addStyleSheetVersion($url, $version, $type, $media, $attribs);
}
/**
* Add a JS script file to the page generated by the CMS.
*
* There are three combinations of defer and async (see http://www.w3schools.com/tags/att_script_defer.asp):
* * $defer false, $async true: The script is executed asynchronously with the rest of the page
* (the script will be executed while the page continues the parsing)
* * $defer true, $async false: The script is executed when the page has finished parsing.
* * $defer false, $async false. (default) The script is loaded and executed immediately. When it finishes
* loading the browser continues parsing the rest of the page.
*
* When you are using $defer = true there is no guarantee about the load order of the scripts. Whichever
* script loads first will be executed first. The order they appear on the page is completely irrelevant.
*
* @param string $uri A path definition understood by parsePath, e.g. media://com_example/js/foo.js
* @param boolean $defer Adds the defer attribute, see above
* @param boolean $async Adds the async attribute, see above
* @param string $version (optional) Version string to be added to the URL
* @param string $type MIME type of the script
*
* @see self::parsePath
*
* @return void
*/
public function addJS($uri, $defer = false, $async = false, $version = null, $type = 'text/javascript')
{
if ($this->container->platform->isCli())
{
return;
}
$method = 'addScript' . (!empty($version) ? 'Version' : '');
$document = $this->container->platform->getDocument();
if (!method_exists($document, $method))
{
return;
}
$url = $this->container->template->parsePath($uri);
if (empty($version))
{
$document->addScript($url, $type, $defer, $async);
return;
}
$document->addScriptVersion($url, $version, $type, $defer, $async);
}
/**
* Compile a LESS file into CSS and add it to the page generated by the CMS.
* This method has integrated cache support. The compiled LESS files will be
* written to the media/lib_fof/compiled directory of your site. If the file
* cannot be written we will use the $altPath, if specified
*
* @param string $path A path definition understood by parsePath pointing to the source LESS file,
* e.g. media://com_example/less/foo.less
* @param string $altPath A path definition understood by parsePath pointing to a precompiled CSS file,
* used when we can't write the generated file to the output directory,
* e.g. media://com_example/css/foo.css
* @param boolean $returnPath Return the URL of the generated CSS file but do not include it. If it can't be
* generated, false is returned and the alt files are not included
* @param string $version (optional) Version string to be added to the URL
* @param string $type MIME type of the stylesheeet
* @param string $media Media target definition of the style sheet, e.g. "screen"
* @param array $attribs Array of attributes
*
* @see self::parsePath
*
* @since 2.0
*
* @return mixed True = successfully included generated CSS, False = the alternate CSS file was used, null = the source file does not exist
*/
public function addLESS($path, $altPath = null, $returnPath = false, $version = null, $type = 'text/css', $media = null, $attribs = array())
{
// Does the cache directory exists and is writeable
static $sanityCheck = null;
// Get the local LESS file
$localFile = $this->parsePath($path, true);
$filesystem = $this->container->filesystem;
$platformDirs = $this->container->platform->getPlatformBaseDirs();
if (is_null($sanityCheck))
{
// Make sure the cache directory exists
if (!is_dir($platformDirs['public'] . '/media/lib_fof/compiled/'))
{
$sanityCheck = $filesystem->folderCreate($platformDirs['public'] . '/media/lib_fof/compiled/');
}
else
{
$sanityCheck = true;
}
}
// No point continuing if the source file is not there or we can't write to the cache
if (!$sanityCheck || !is_file($localFile))
{
if (!$returnPath)
{
if (is_string($altPath))
{
$this->addCSS($altPath, $version, $type, $media, $attribs);
}
elseif (is_array($altPath))
{
foreach ($altPath as $anAltPath)
{
$this->addCSS($anAltPath, $version, $type, $media, $attribs);
}
}
}
return false;
}
// Get the source file's unique ID
$id = md5(filemtime($localFile) . filectime($localFile) . $localFile);
// Get the cached file path
$cachedPath = $platformDirs['public'] . '/media/lib_fof/compiled/' . $id . '.css';
// Get the LESS compiler
$lessCompiler = new Less;
$lessCompiler->formatterName = 'compressed';
// Should I add an alternative import path?
$altFiles = $this->getAltPaths($path);
if (isset($altFiles['alternate']))
{
$currentLocation = realpath(dirname($localFile));
$normalLocation = realpath(dirname($altFiles['normal']));
$alternateLocation = realpath(dirname($altFiles['alternate']));
if ($currentLocation == $normalLocation)
{
$lessCompiler->importDir = array($alternateLocation, $currentLocation);
}
else
{
$lessCompiler->importDir = array($currentLocation, $normalLocation);
}
}
// Compile the LESS file
$lessCompiler->checkedCompile($localFile, $cachedPath);
// Add the compiled CSS to the page
$base_url = rtrim($this->container->platform->URIbase(), '/');
if (substr($base_url, -14) == '/administrator')
{
$base_url = substr($base_url, 0, -14);
}
$url = $base_url . '/media/lib_fof/compiled/' . $id . '.css';
if ($returnPath)
{
return $url;
}
else
{
$this->addCSS($url, $version, $type, $media, $attribs);
return true;
}
}
/**
* Adds an inline JavaScript script to the page header
*
* @param string $script The script content to add
* @param string $type The MIME type of the script
*/
public function addJSInline($script, $type = 'text/javascript')
{
if ($this->container->platform->isCli())
{
return;
}
$document = $this->container->platform->getDocument();
if (!method_exists($document, 'addScriptDeclaration'))
{
return;
}
$document->addScriptDeclaration($script, $type);
}
/**
* Adds an inline stylesheet (inline CSS) to the page header
*
* @param string $css The stylesheet content to add
* @param string $type The MIME type of the script
*/
public function addCSSInline($css, $type = 'text/css')
{
if ($this->container->platform->isCli())
{
return;
}
$document = $this->container->platform->getDocument();
if (!method_exists($document, 'addStyleDeclaration'))
{
return;
}
$document->addStyleDeclaration($css, $type);
}
/**
* Creates a SEF compatible sort header. Standard Joomla function will add a href="#" tag, so with SEF
* enabled, the browser will follow the fake link instead of processing the onSubmit event; so we
* need a fix.
*
* @param string $text Header text
* @param string $field Field used for sorting
* @param \stdClass $list Object holding the direction and the ordering field
*
* @return string HTML code for sorting
*/
public function sefSort($text, $field, $list)
{
$sort = \JHTML::_('grid.sort', \JText::_(strtoupper($text)) . ' ', $field, $list->order_Dir, $list->order);
return str_replace('href="#"', 'href="javascript:void(0);"', $sort);
}
/**
* Parse a fancy path definition into a path relative to the site's root,
* respecting template overrides, suitable for inclusion of media files.
* For example, media://com_foobar/css/test.css is parsed into
* media/com_foobar/css/test.css if no override is found, or
* templates/mytemplate/media/com_foobar/css/test.css if the current
* template is called mytemplate and there's a media override for it.
*
* Regarding plugins, templates are searched inside the plugin's tmpl directory and the template's html directory.
* For instance considering plugin://system/example/something the files will be looked for in:
* plugins/system/example/tmpl/something.php
* templates/yourTemplate/html/plg_system_example/something.php
* Template paths for plugins are uncommon and not standard Joomla! practice. They make sense when you are
* implementing features of your component as plugins and they need to provide HTML output, e.g. some of the
* integration plugins we use in Akeeba Subscriptions.
*
* The valid protocols are:
* media:// The media directory or a media override
* plugin:// Given as plugin://pluginType/pluginName/template, e.g. plugin://system/example/something
* admin:// Path relative to administrator directory (no overrides)
* site:// Path relative to site's root (no overrides)
*
* @param string $path Fancy path
* @param boolean $localFile When true, it returns the local path, not the URL
*
* @return string Parsed path
*/
public function parsePath($path, $localFile = false)
{
$platformDirs = $this->container->platform->getPlatformBaseDirs();
if ($localFile)
{
$url = rtrim($platformDirs['root'], DIRECTORY_SEPARATOR) . '/';
}
else
{
$url = $this->container->platform->URIroot();
}
$altPaths = $this->getAltPaths($path);
$filePath = $altPaths['normal'];
// If JDEBUG is enabled, prefer that path, else prefer an alternate path if present
if (defined('JDEBUG') && JDEBUG && isset($altPaths['debug']))
{
if (file_exists($platformDirs['public'] . '/' . $altPaths['debug']))
{
$filePath = $altPaths['debug'];
}
}
elseif (isset($altPaths['alternate']))
{
if (file_exists($platformDirs['public'] . '/' . $altPaths['alternate']))
{
$filePath = $altPaths['alternate'];
}
}
$url .= $filePath;
return $url;
}
/**
* Parse a fancy path definition into a path relative to the site's root.
* It returns both the normal and alternative (template media override) path.
* For example, media://com_foobar/css/test.css is parsed into
* array(
* 'normal' => 'media/com_foobar/css/test.css',
* 'alternate' => 'templates/mytemplate/media/com_foobar/css//test.css'
* );
*
* The valid protocols are:
* media:// The media directory or a media override
* admin:// Path relative to administrator directory (no alternate)
* site:// Path relative to site's root (no alternate)
* auto:// Automatically guess if it should be site:// or admin://
* plugin:// The plugin directory or a template override (must be plugin://pluginType/pluginName/templateName)
*
* @param string $path Fancy path
*
* @return array Array of normal and alternate parsed path
*/
public function getAltPaths($path)
{
$protoAndPath = explode('://', $path, 2);
if (count($protoAndPath) < 2)
{
$protocol = 'media';
}
else
{
$protocol = $protoAndPath[0];
$path = $protoAndPath[1];
}
if ($protocol == 'auto')
{
$protocol = $this->container->platform->isBackend() ? 'admin' : 'site';
}
$path = ltrim($path, '/' . DIRECTORY_SEPARATOR);
switch ($protocol)
{
case 'media':
// Do we have a media override in the template?
$pathAndParams = explode('?', $path, 2);
$ret = array(
'normal' => 'media/' . $pathAndParams[0],
'alternate' => $this->container->platform->getTemplateOverridePath('media:/' . $pathAndParams[0], false),
);
break;
case 'plugin':
// The path is pluginType/pluginName/viewTemplate
$pathInfo = explode('/', $path);
$pluginType = isset($pathInfo[0]) ? $pathInfo[0] : 'system';
$pluginName = isset($pathInfo[1]) ? $pathInfo[1] : 'foobar';
$viewTemplate = isset($pathInfo[2]) ? $pathInfo[2] : 'default';
$pluginSystemName = 'plg_' . $pluginType . '_' . $pluginName;
$ret = array(
'normal' => 'plugins/' . $pluginType . '/' . $pluginName . '/tmpl/' . $viewTemplate,
'alternate' => $this->container->platform->getTemplateOverridePath('auto:/' . $pluginSystemName . '/' . $viewTemplate, false),
);
break;
case 'admin':
$ret = array(
'normal' => 'administrator/' . $path
);
break;
default:
case 'site':
$ret = array(
'normal' => $path
);
break;
}
// For CSS and JS files, add a debug path if the supplied file is compressed
$filesystem = $this->container->filesystem;
$ext = $filesystem->getExt($ret['normal']);
if (in_array($ext, array('css', 'js')))
{
$file = basename($filesystem->stripExt($ret['normal']));
/*
* Detect if we received a file in the format name.min.ext
* If so, strip the .min part out, otherwise append -uncompressed
*/
if (strlen($file) > 4 && strrpos($file, '.min', '-4'))
{
$position = strrpos($file, '.min', '-4');
$filename = str_replace('.min', '.', $file, $position) . $ext;
}
else
{
$filename = $file . '-uncompressed.' . $ext;
}
// Clone the $ret array so we can manipulate the 'normal' path a bit
$t1 = (object) $ret;
$temp = clone $t1;
unset($t1);
$temp = (array)$temp;
$normalPath = explode('/', $temp['normal']);
array_pop($normalPath);
$normalPath[] = $filename;
$ret['debug'] = implode('/', $normalPath);
}
return $ret;
}
/**
* Returns the contents of a module position
*
* @param string $position The position name, e.g. "position-1"
* @param int $style Rendering style, see JDocumentRendererModule::render
*
* @return string The contents of the module position
*/
public function loadPosition($position, $style = -2)
{
$document = $this->container->platform->getDocument();
if (!($document instanceof JDocument))
{
return '';
}
if (!method_exists($document, 'loadRenderer'))
{
return '';
}
try
{
$renderer = $document->loadRenderer('module');
}
catch (\Exception $exc)
{
return '';
}
$params = array('style' => $style);
$contents = '';
foreach (\JModuleHelper::getModules($position) as $mod)
{
$contents .= $renderer->render($mod, $params);
}
return $contents;
}
/**
* Render a module by name
*
* @param string $moduleName The name of the module (real, eg 'Breadcrumbs' or folder, eg 'mod_breadcrumbs')
* @param int $style The rendering style, see JDocumentRendererModule::render
*
* @return string The rendered module
*/
public function loadModule($moduleName, $style = -2)
{
$document = $this->container->platform->getDocument();
if (!($document instanceof JDocument))
{
return '';
}
if (!method_exists($document, 'loadRenderer'))
{
return '';
}
try
{
$renderer = $document->loadRenderer('module');
}
catch (\Exception $exc)
{
return '';
}
$params = array('style' => $style);
$mod = \JModuleHelper::getModule($moduleName);
if (empty($mod))
{
return '';
}
return $renderer->render($mod, $params);
}
/**
* Merges the current url with new or changed parameters.
*
* This method merges the route string with the url parameters defined
* in current url. The parameters defined in current url, but not given
* in route string, will automatically reused in the resulting url.
* But only these following parameters will be reused:
*
* option, view, layout, format
*
* Example:
*
* Assuming that current url is:
* http://fobar.com/index.php?option=com_foo&view=cpanel
*
* <code>
* <?php echo F0FTemplateutils::route('view=categories&layout=tree'); ?>
* </code>
*
* Result:
* http://fobar.com/index.php?option=com_foo&view=categories&layout=tree
*
* @param string $route The parameters string
*
* @return string The human readable, complete url
*/
public function route($route = '')
{
$route = trim($route);
// Special cases
if ($route == 'index.php' || $route == 'index.php?')
{
$result = $route;
}
elseif (substr($route, 0, 1) == '&')
{
$url = \JURI::getInstance();
$vars = array();
parse_str($route, $vars);
$url->setQuery(array_merge($url->getQuery(true), $vars));
$result = 'index.php?' . $url->getQuery();
}
else
{
$url = \JURI::getInstance();
$props = $url->getQuery(true);
// Strip 'index.php?'
if (substr($route, 0, 10) == 'index.php?')
{
$route = substr($route, 10);
}
// Parse route
$parts = array();
parse_str($route, $parts);
$result = array();
// Check to see if there is component information in the route if not add it
if (!isset($parts['option']) && isset($props['option']))
{
$result[] = 'option=' . $props['option'];
}
// Add the layout information to the route only if it's not 'default'
if (!isset($parts['view']) && isset($props['view']))
{
$result[] = 'view=' . $props['view'];
if (!isset($parts['layout']) && isset($props['layout']))
{
$result[] = 'layout=' . $props['layout'];
}
}
// Add the format information to the URL only if it's not 'html'
if (!isset($parts['format']) && isset($props['format']) && $props['format'] != 'html')
{
$result[] = 'format=' . $props['format'];
}
// Reconstruct the route
if (!empty($route))
{
$result[] = $route;
}
$result = 'index.php?' . implode('&', $result);
}
return \JRoute::_($result);
}
}