Make images in css file preload automatically.

1 files changed, 25 insertions, 0 deletions

diff --git a/utils/preload.php b/utils/preload.php
new file mode 100644
index 0000000..9e26956
--- /dev/null
+++ b/utils/preload.php
@@ -0,0 +1,25 @@
+<?php /* -*- Mode: php; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+
+function preload($cssfile)
+{
+  $css = file_get_contents($cssfile);
+
+  // TODO: Check for @import and do recursive parsing
+?>
+
+  <div style="display: none;">
+<?php
+  preg_match_all("|url\((.+)\)|U", $css, $urls);
+  //  print_r($urls);
+  $path = dirname($cssfile);
+  $imgs = array_unique($urls[1]);
+  
+foreach($imgs as $_p) {
+	echo "    <img alt=\"preload\" src=\"".$path . "/" . $_p."\"/>\n";
+}
+?>
+</div>
+<?php
+}
+
+?>
\ No newline at end of file