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<?php
/**
* Piwik - Open source web analytics
*
* @link http://piwik.org
* @license http://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
*
* @category Piwik
* @package Piwik
*/
namespace Piwik;
/**
* This class contains logic to make Themes work beautifully.
*
* @package Piwik
*/
class Theme
{
/** @var string */
private $themeName;
/** @var \Piwik\Plugin */
private $theme;
public function __construct()
{
$this->theme = \Piwik\Plugin\Manager::getInstance()->getThemeEnabled();
$this->themeName = $this->theme->getPluginName();
}
public function getStylesheet()
{
if ($this->themeName == \Piwik\Plugin\Manager::DEFAULT_THEME) {
return false;
}
$info = $this->theme->getInformation();
if (!isset($info['stylesheet'])) {
return false;
}
$themeStylesheet = 'plugins/' . $this->theme->getPluginName() . '/' . $info['stylesheet'];
return $themeStylesheet;
}
public function rewriteAssetsPathToTheme($output)
{
if ($this->themeName == \Piwik\Plugin\Manager::DEFAULT_THEME) {
return $output;
}
$pattern = array(
// Rewriting scripts includes to overrides
'~<script type=[\'"]text/javascript[\'"] (src)=[\'"]([^\'"]+)[\'"]>~',
'~<script (src)=[\'"]([^\'"]+)[\'"] type=[\'"]text/javascript[\'"]>~',
'~<link (rel)=[\'"]stylesheet[\'"] type=[\'"]text/css[\'"] href=[\'"]([^\'"]+)[\'"] ?/?>~',
// Images as well
'~(src|href)=[\'"]([^\'"]+)[\'"]~',
// rewrite images in CSS files, i.e. url(plugins/Morpheus/overrides/themes/default/images/help.png);
'~(url\()[\'"]([^\)]?[themes|plugins]+[^\)]+[.jpg|png|gif|svg]?)[\'"][\)]~',
// rewrites images in JS files
'~(=)[\s]?[\'"]([^\'"]+[.jpg|.png|.gif|svg]?)[\'"]~',
);
return preg_replace_callback($pattern, array($this,'rewriteAssetPathIfOverridesFound'), $output);
}
private function rewriteAssetPathIfOverridesFound($src)
{
$source = $src[0];
$pathAsset = $src[2];
// Basic health check, we dont replace if not starting with plugins/
if( strpos($pathAsset, 'plugins') !== 0) {
return $source;
}
// or if it's already rewritten
if(strpos($pathAsset, $this->themeName) !== false) {
return $source;
}
$defaultThemePath = "plugins/" . \Piwik\Plugin\Manager::DEFAULT_THEME;
$newThemePath = "plugins/" . $this->themeName;
$overridingAsset = str_replace($defaultThemePath, $newThemePath, $pathAsset);
if(file_exists($overridingAsset)) {
return str_replace($pathAsset, $overridingAsset, $source);
}
return $source;
}
}
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