Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file src/Core/Theme.php
*/
namespace Friendica\Core;
use Friendica\Core\Logger;
use Friendica\Core\System;
/**
* Some functions to handle themes
*/
class Theme
{
/**
* @brief Parse theme comment in search of theme infos.
*
* like
* \code
* ..* Name: My Theme
* * Description: My Cool Theme
* . * Version: 1.2.3
* * Author: John <profile url>
* * Maintainer: Jane <profile url>
* *
* \endcode
* @param string $theme the name of the theme
* @return array
*/
public static function getInfo($theme)
{
$info = [
'name' => $theme,
'description' => "",
'author' => [],
'maintainer' => [],
'version' => "",
'credits' => "",
'experimental' => file_exists("view/theme/$theme/experimental"),
'unsupported' => file_exists("view/theme/$theme/unsupported")
];
if (!is_file("view/theme/$theme/theme.php")) {
return $info;
}
$a = get_app();
$stamp1 = microtime(true);
$theme_file = file_get_contents("view/theme/$theme/theme.php");
$a->saveTimestamp($stamp1, "file");
$result = preg_match("|/\*.*\*/|msU", $theme_file, $matches);
if ($result) {
$comment_lines = explode("\n", $matches[0]);
foreach ($comment_lines as $comment_line) {
$comment_line = trim($comment_line, "\t\n\r */");
if ($comment_line != "") {
list($key, $value) = array_map("trim", explode(":", $comment_line, 2));
$key = strtolower($key);
if ($key == "author") {
$result = preg_match("|([^<]+)<([^>]+)>|", $value, $matches);
if ($result) {
$info['author'][] = ['name' => $matches[1], 'link' => $matches[2]];
} else {
$info['author'][] = ['name' => $value];
}
} elseif ($key == "maintainer") {
$result = preg_match("|([^<]+)<([^>]+)>|", $value, $matches);
if ($result) {
$info['maintainer'][] = ['name' => $matches[1], 'link' => $matches[2]];
} else {
$info['maintainer'][] = ['name' => $value];
}
} elseif (array_key_exists($key, $info)) {
$info[$key] = $value;
}
}
}
}
return $info;
}
/**
* @brief Returns the theme's screenshot.
*
* The screenshot is expected as view/theme/$theme/screenshot.[png|jpg].
*
* @param sring $theme The name of the theme
* @return string
*/
public static function getScreenshot($theme)
{
$exts = ['.png', '.jpg'];
foreach ($exts as $ext) {
if (file_exists('view/theme/' . $theme . '/screenshot' . $ext)) {
return(System::baseUrl() . '/view/theme/' . $theme . '/screenshot' . $ext);
}
}
return(System::baseUrl() . '/images/blank.png');
}
// install and uninstall theme
public static function uninstall($theme)
{
Logger::log("Addons: uninstalling theme " . $theme);
include_once "view/theme/$theme/theme.php";
if (function_exists("{$theme}_uninstall")) {
$func = "{$theme}_uninstall";
$func();
}
}
public static function install($theme)
{
// silently fail if theme was removed
if (!file_exists("view/theme/$theme/theme.php")) {
return false;
}
Logger::log("Addons: installing theme $theme");
include_once "view/theme/$theme/theme.php";
if (function_exists("{$theme}_install")) {
$func = "{$theme}_install";
$func();
return true;
} else {
Logger::log("Addons: FAILED installing theme $theme");
return false;
}
}
/**
* @brief Get the full path to relevant theme files by filename
*
* This function search in the theme directory (and if not present in global theme directory)
* if there is a directory with the file extension and for a file with the given
* filename.
*
* @param string $file Filename
* @param string $root Full root path
* @return string Path to the file or empty string if the file isn't found
*/
public static function getPathForFile($file, $root = '')
{
$file = basename($file);
// Make sure $root ends with a slash / if it's not blank
if ($root !== '' && $root[strlen($root) - 1] !== '/') {
$root = $root . '/';
}
$theme_info = get_app()->theme_info;
if (is_array($theme_info) && array_key_exists('extends', $theme_info)) {
$parent = $theme_info['extends'];
} else {
$parent = 'NOPATH';
}
$theme = get_app()->getCurrentTheme();
$thname = $theme;
$ext = substr($file, strrpos($file, '.') + 1);
$paths = [
"{$root}view/theme/$thname/$ext/$file",
"{$root}view/theme/$parent/$ext/$file",
"{$root}view/$ext/$file",
];
foreach ($paths as $p) {
// strpos() is faster than strstr when checking if one string is in another (http://php.net/manual/en/function.strstr.php)
if (strpos($p, 'NOPATH') !== false) {
continue;
} elseif (file_exists($p)) {
return $p;
}
}
return '';
}
/**
* @brief Return relative path to theme stylesheet file
*
* Provide a sane default if nothing is chosen or the specified theme does not exist.
*
* @param string $theme Theme name
*
* @return string
*/
public static function getStylesheetPath($theme)
{
$a = get_app();
$opts = (($a->profile_uid) ? '?f=&puid=' . $a->profile_uid : '');
if (file_exists('view/theme/' . $theme . '/style.php')) {
return 'view/theme/' . $theme . '/style.pcss' . $opts;
}
return 'view/theme/' . $theme . '/style.css';
}
}