show small image for dir snapshot

themes/beauty/controller/SiteController.php

@@ -213,6 +213,16 @@ Class SiteController extends Controller {
                         }
                     }else {
                         $url = $imgFile['path'];
+
+                        //小尺寸图片支持
+                        $cacheKey = $this->getCacheKey($imgFile['id'], 'imgsm');
+                        $expireSeconds = FSC::$app['config']['screenshot_expire_seconds'];  //有效期3650天
+                        $cacheSubDir = 'image';
+                        $cachedData = Common::getCacheFromFile($cacheKey, $expireSeconds, $cacheSubDir);
+                        if (!empty($cachedData)) {
+                            $url = $cachedData;
+                        }
+
                         Common::saveCacheToFile($cacheKey, $url);
                     }
                 }else {

themes/beauty/views/site/index.php

@@ -177,15 +177,15 @@ eof;
                     }
 
                     if (in_array($first_img['extension'], $imgExts)) {
-                        if ($index > 0) {
-                            echo <<<eof
-    <img src="/img/beauty/lazy.svg" data-original="{$first_img['path']}" class="bor_radius im_img lazy" alt="{$first_img['filename']}">
-eof;
-                        } else {
+                        $imgUrl = urlencode($first_img['path']);
+                        $smallUrl = "/site/smallimg/?id={$first_img['id']}&url={$imgUrl}";
                         echo <<<eof
-    <img src="{$first_img['path']}" class="bor_radius im_img" alt="{$first_img['filename']}">
+    <img src="/img/beauty/lazy.svg"
+        data-id="{$first_img['id']}"
+        data-original="{$smallUrl}"
+        data-original_="{$first_img['path']}"
+        class="bor_radius im_img lazy" alt="{$first_img['filename']}">
 eof;
-                        }
                     } else {
                         echo <<<eof
     <img src="/img/default.png" class="bor_radius im_img" alt="default image">