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<?php |
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namespace Frontend\Core\Engine; |
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use Exception; |
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/** |
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* This class will take care of functionality pertaining themes. |
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*/ |
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class Theme |
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{ |
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/** |
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* The current active theme's name |
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* |
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* @var string |
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*/ |
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private static $theme; |
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/** |
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* Get the file path based on the theme. |
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* If it does not exist in the theme it will return $file. |
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* |
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* @param string $filePath Path to the file. |
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* |
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* @throws Exception |
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* |
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* @return string Path to the (theme) file. |
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*/ |
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public static function getPath(string $filePath): string |
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{ |
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$filePath = self::getFilePathForCurrentTheme(self::getTheme(), $filePath); |
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// check if the file exists |
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if (!is_file(PATH_WWW . str_replace(PATH_WWW, '', $filePath))) { |
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throw new Exception('The file (' . $filePath . ') does not exist.'); |
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} |
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return $filePath; |
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} |
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private static function getFilePathForCurrentTheme(string $theme, string $filePath): string |
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{ |
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// just return the file if the theme is already in the file path |
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if (mb_strpos($filePath, 'src/Frontend/Themes/' . $theme) !== false) { |
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return $filePath; |
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} |
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// add theme location |
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$themeTemplate = str_replace('src/Frontend/', 'src/Frontend/Themes/' . $theme . '/', $filePath); |
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// check if this template exists |
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if (is_file(PATH_WWW . str_replace(PATH_WWW, '', $themeTemplate))) { |
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return $themeTemplate; |
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} |
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return $filePath; |
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} |
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/** |
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* Gets the active theme name |
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* |
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* @return string |
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*/ |
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public static function getTheme(): string |
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{ |
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// theme name has not yet been saved, fetch and save it |
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if (!self::$theme) { |
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self::$theme = Model::get('fork.settings')->get('Core', 'theme', null); |
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} |
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// return theme name |
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return self::$theme; |
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} |
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} |
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Let?s assume that you have a directory layout like this:
and let?s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: