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BUG Cache page icons (#2493)

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This commit is contained in:
Adrian Humphreys 2019-11-13 10:21:52 +13:00 committed by Maxime Rainville
parent 84bea03cc2
commit 7045082a06
2 changed files with 35 additions and 2 deletions
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5
_config/cache.yml
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@ -12,4 +12,7 @@ SilverStripe\Core\Injector\Injector:
factory: SilverStripe\Core\Cache\CacheFactory
constructor:
namespace: "SiteTree_CreatableChildren"
Psr\SimpleCache\CacheInterface.SiteTree_PageIcons:
factory: SilverStripe\Core\Cache\CacheFactory
constructor:
namespace: "SiteTree_PageIcons"

32
code/Controllers/LeftAndMainPageIconsExtension.php
View File

@ -2,32 +2,59 @@
namespace SilverStripe\CMS\Controllers;
use Psr\SimpleCache\CacheInterface;
use Psr\SimpleCache\InvalidArgumentException;
use ReflectionException;
use SilverStripe\CMS\Model\SiteTree;
use SilverStripe\Core\ClassInfo;
use SilverStripe\Core\Config\Config;
use SilverStripe\Core\Convert;
use SilverStripe\Core\Extension;
use SilverStripe\Core\Flushable;
use SilverStripe\Core\Injector\Injector;
use SilverStripe\View\Requirements;
/**
* Extension to include custom page icons
*/
class LeftAndMainPageIconsExtension extends Extension
class LeftAndMainPageIconsExtension extends Extension implements Flushable
{
/**
* @throws InvalidArgumentException
* @throws ReflectionException
*/
public function init()
{
Requirements::customCSS($this->generatePageIconsCss(), CMSMain::PAGE_ICONS_ID);
}
/**
* Just broadly clears the cache on flush
*/
public static function flush()
{
Injector::inst()->get(CacheInterface::class . '.SiteTree_PageIcons')->clear();
}
/**
* Include CSS for page icons. We're not using the JSTree 'types' option
* because it causes too much performance overhead just to add some icons.
*
* @return string CSS
* @throws InvalidArgumentException
* @throws ReflectionException
*/
public function generatePageIconsCss()
{
/** @var CacheInterface $cache */
$cache = Injector::inst()->get(CacheInterface::class . '.SiteTree_PageIcons');
if ($cache->has('css')) {
return $cache->get('css');
}
$css = '';
$classes = ClassInfo::subclassesFor(SiteTree::class);
foreach ($classes as $class) {
@ -41,6 +68,9 @@ class LeftAndMainPageIconsExtension extends Extension
$css .= sprintf('%s { background: transparent url(\'%s\') 0 0 no-repeat; }', $selector, $iconURL);
}
}
$cache->set('css', $css);
return $css;
}
}