Do not manage cache when cached tile is on target layer's backbuffer

2013-05-19 10:16:12 +02:00
parent d1b00824fc
commit cd5ae45273
1 changed files with 5 additions and 0 deletions
--- a/lib/OpenLayers/TileManager.js
+++ b/lib/OpenLayers/TileManager.js
@@ -388,6 +388,11 @@ OpenLayers.TileManager = OpenLayers.Class({
        if (img && (!img.parentNode ||
                 OpenLayers.Element.hasClass(img.parentNode, 'olBackBuffer'))) {
            if (tile.layer.backBuffer) {
+                if (tile.layer.backBuffer === img.parentNode) {
+                    // cached image is on the target layer's backbuffer already,
+                    // so nothing to do here
+                    return;
+                }
                img.style.opacity = 0;
                img.style.visibility = 'hidden';
            }