From e94b3ab1578f3d427721153d2bfb2e4b61dd5162 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mike=20Schw=C3=B6rer?= <mailport@mikescher.de>
Date: Sat, 10 Feb 2018 13:01:54 +0100
Subject: [PATCH] preload carousel images

---
 www/data/images/.htaccess       |  3 +++
 www/data/javascript/ms_basic.js | 25 +++++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/www/data/images/.htaccess b/www/data/images/.htaccess
index 3835eb5..81f86ca 100644
--- a/www/data/images/.htaccess
+++ b/www/data/images/.htaccess
@@ -4,5 +4,8 @@ ExpiresByType image/jpg     "access plus 1 week"
 ExpiresByType image/jpeg    "access plus 1 week"
 ExpiresByType image/gif     "access plus 1 week"
 ExpiresByType image/png     "access plus 1 week"
+ExpiresByType video/webm    "access plus 1 week"
+ExpiresByType video/mp4     "access plus 1 week"
+ExpiresByType video/ogg     "access plus 1 week"
 ExpiresByType image/svg+xml "access plus 1 day"
 </IfModule>
\ No newline at end of file
diff --git a/www/data/javascript/ms_basic.js b/www/data/javascript/ms_basic.js
index d0458e5..ab81e1f 100644
--- a/www/data/javascript/ms_basic.js
+++ b/www/data/javascript/ms_basic.js
@@ -47,6 +47,7 @@ function imgcarousel_init() {
         }
 
         imgcarousel_move(carousel, 0);
+        imgcarousel_preload(carousel);
     }
 }
 
@@ -72,5 +73,29 @@ function imgcarousel_move(source, delta) {
         content.setAttribute('style', 'background-image: url(' + img + ');');
         content.innerHTML = '';
     }
+}
 
+function imgcarousel_preload(source) {
+    let carousel = findParent(source, ".imgcarousel_parent"); // <div>
+    let images = JSON.parse(carousel.getAttribute('data-imgcarousel-images'));
+
+    setTimeout(function () {
+        let preload_img = [];
+
+        let i = 0;
+        for (let img of images)
+        {
+            if (img.toLowerCase().endsWith('.webm'))
+            {
+                // ???
+            }
+            else
+            {
+                preload_img[i] = new Image();
+                preload_img[i].src = img;
+                i++;
+            }
+        }
+
+    }, 1000);
 }
\ No newline at end of file