190 lines
5.6 KiB
PHP
190 lines
5.6 KiB
PHP
<?php
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/**
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* @file src/Core/Theme.php
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*/
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namespace Friendica\Core;
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use Friendica\Core\System;
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require_once 'boot.php';
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/**
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* Some functions to handle themes
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*/
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class Theme
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{
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/**
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* @brief Parse theme comment in search of theme infos.
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*
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* like
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* \code
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* ..* Name: My Theme
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* * Description: My Cool Theme
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* . * Version: 1.2.3
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* * Author: John <profile url>
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* * Maintainer: Jane <profile url>
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* *
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* \endcode
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* @param string $theme the name of the theme
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* @return array
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*/
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public static function getInfo($theme)
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{
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$info=[
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'name' => $theme,
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'description' => "",
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'author' => [],
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'maintainer' => [],
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'version' => "",
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'credits' => "",
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'experimental' => false,
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'unsupported' => false
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];
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if (file_exists("view/theme/$theme/experimental"))
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$info['experimental'] = true;
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if (file_exists("view/theme/$theme/unsupported"))
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$info['unsupported'] = true;
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if (!is_file("view/theme/$theme/theme.php")) return $info;
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$a = get_app();
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$stamp1 = microtime(true);
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$f = file_get_contents("view/theme/$theme/theme.php");
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$a->save_timestamp($stamp1, "file");
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$r = preg_match("|/\*.*\*/|msU", $f, $m);
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if ($r) {
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$ll = explode("\n", $m[0]);
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foreach ( $ll as $l ) {
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$l = trim($l,"\t\n\r */");
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if ($l != "") {
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list($k, $v) = array_map("trim", explode(":", $l, 2));
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$k= strtolower($k);
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if ($k == "author") {
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$r=preg_match("|([^<]+)<([^>]+)>|", $v, $m);
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if ($r) {
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$info['author'][] = ['name'=>$m[1], 'link'=>$m[2]];
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} else {
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$info['author'][] = ['name'=>$v];
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}
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} elseif ($k == "maintainer") {
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$r=preg_match("|([^<]+)<([^>]+)>|", $v, $m);
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if ($r) {
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$info['maintainer'][] = ['name'=>$m[1], 'link'=>$m[2]];
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} else {
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$info['maintainer'][] = ['name'=>$v];
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}
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} else {
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if (array_key_exists($k, $info)) {
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$info[$k] = $v;
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}
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}
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}
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}
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}
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return $info;
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}
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/**
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* @brief Returns the theme's screenshot.
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*
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* The screenshot is expected as view/theme/$theme/screenshot.[png|jpg].
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*
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* @param sring $theme The name of the theme
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* @return string
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*/
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public static function getScreenshot($theme)
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{
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$exts = ['.png','.jpg'];
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foreach ($exts as $ext) {
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if (file_exists('view/theme/' . $theme . '/screenshot' . $ext)) {
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return(System::baseUrl() . '/view/theme/' . $theme . '/screenshot' . $ext);
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}
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}
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return(System::baseUrl() . '/images/blank.png');
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}
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// install and uninstall theme
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public static function uninstall($theme)
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{
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logger("Addons: uninstalling theme " . $theme);
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include_once("view/theme/$theme/theme.php");
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if (function_exists("{$theme}_uninstall")) {
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$func = "{$theme}_uninstall";
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$func();
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}
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}
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public static function install($theme)
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{
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// silently fail if theme was removed
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if (! file_exists("view/theme/$theme/theme.php")) {
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return false;
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}
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logger("Addons: installing theme $theme");
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include_once("view/theme/$theme/theme.php");
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if (function_exists("{$theme}_install")) {
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$func = "{$theme}_install";
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$func();
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return true;
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} else {
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logger("Addons: FAILED installing theme $theme");
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return false;
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}
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}
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/**
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* @brief Get the full path to relevant theme files by filename
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*
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* This function search in the theme directory (and if not present in global theme directory)
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* if there is a directory with the file extension and for a file with the given
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* filename.
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*
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* @param string $file Filename
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* @param string $root Full root path
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* @return string Path to the file or empty string if the file isn't found
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*/
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public static function getPathForFile($file, $root = '')
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{
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$file = basename($file);
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// Make sure $root ends with a slash / if it's not blank
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if ($root !== '' && $root[strlen($root)-1] !== '/') {
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$root = $root . '/';
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}
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$theme_info = get_app()->theme_info;
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if (is_array($theme_info) && array_key_exists('extends',$theme_info)) {
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$parent = $theme_info['extends'];
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} else {
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$parent = 'NOPATH';
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}
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$theme = current_theme();
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$thname = $theme;
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$ext = substr($file,strrpos($file,'.')+1);
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$paths = [
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"{$root}view/theme/$thname/$ext/$file",
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"{$root}view/theme/$parent/$ext/$file",
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"{$root}view/$ext/$file",
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];
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foreach ($paths as $p) {
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// strpos() is faster than strstr when checking if one string is in another (http://php.net/manual/en/function.strstr.php)
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if (strpos($p,'NOPATH') !== false) {
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continue;
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} elseif (file_exists($p)) {
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return $p;
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}
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}
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return '';
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}
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}
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