xiaowang/kirby/src/Panel/Plugins.php
2022-08-31 16:08:03 +02:00

151 lines
3.6 KiB
PHP

<?php
namespace Kirby\Panel;
use Kirby\Cms\App;
use Kirby\Data\Json;
use Kirby\Filesystem\F;
use Kirby\Toolkit\A;
use Kirby\Toolkit\Str;
/**
* The Plugins class takes care of collecting
* js and css plugin files for the panel and caches
* them in the media folder
*
* @package Kirby Panel
* @author Bastian Allgeier <bastian@getkirby.com>
* @link https://getkirby.com
* @copyright Bastian Allgeier
* @license https://getkirby.com/license
*/
class Plugins
{
/**
* Cache of all collected plugin files
*
* @var array
*/
public $files;
/**
* Collects and returns the plugin files for all plugins
*
* @return array
*/
public function files(): array
{
if ($this->files !== null) {
return $this->files;
}
$this->files = [];
foreach (App::instance()->plugins() as $plugin) {
$this->files[] = $plugin->root() . '/index.css';
$this->files[] = $plugin->root() . '/index.js';
// During plugin development, kirbyup adds an index.dev.mjs as entry point, which
// Kirby will load instead of the regular index.js. Since kirbyup is based on Vite,
// it can't use the standard index.js as entry for its development server:
// Vite requires an entry of type module so it can use JavaScript imports,
// but Kirbyup needs index.js to load as a regular script, synchronously.
$this->files[] = $plugin->root() . '/index.dev.mjs';
}
return $this->files;
}
/**
* Returns the last modification
* of the collected plugin files
*
* @return int
*/
public function modified(): int
{
$files = $this->files();
$modified = [0];
foreach ($files as $file) {
$modified[] = F::modified($file);
}
return max($modified);
}
/**
* Read the files from all plugins and concatenate them
*
* @param string $type
* @return string
*/
public function read(string $type): string
{
$dist = [];
foreach ($this->files() as $file) {
// filter out files with a different type
if (F::extension($file) !== $type) {
continue;
}
// filter out empty files and files that don't exist
$content = F::read($file);
if (!$content) {
continue;
}
if ($type === 'mjs') {
// index.dev.mjs files are turned into data URIs so they
// can be imported without having to copy them to /media
// (avoids having to clean the files from /media again)
$content = F::uri($file);
}
if ($type === 'js') {
// filter out all index.js files that shouldn't be loaded
// because an index.dev.mjs exists
if (F::exists(preg_replace('/\.js$/', '.dev.mjs', $file)) === true) {
continue;
}
$content = trim($content);
// make sure that each plugin is ended correctly
if (Str::endsWith($content, ';') === false) {
$content .= ';';
}
}
$dist[] = $content;
}
if ($type === 'mjs') {
// if no index.dev.mjs modules exist, we MUST return an empty string instead
// of loading an empty array; this is because the module loader code uses
// top level await, which is not compatible with Kirby's minimum browser
// version requirements and therefore must not appear in a default setup
if (empty($dist)) {
return '';
}
$modules = Json::encode($dist);
$modulePromise = "Promise.all($modules.map(url => import(url)))";
return "try { await $modulePromise } catch (e) { console.error(e) }" . PHP_EOL;
}
return implode(PHP_EOL . PHP_EOL, $dist);
}
/**
* Absolute url to the cache file
* This is used by the panel to link the plugins
*
* @param string $type
* @return string
*/
public function url(string $type): string
{
return App::instance()->url('media') . '/plugins/index.' . $type . '?' . $this->modified();
}
}