Only load tiles that are not yet loaded

2015-07-10 08:17:14 -07:00
parent a705c6fe11
commit b57cdb730c
1 changed files with 6 additions and 4 deletions
--- a/src/ol/tilequeue.js
+++ b/src/ol/tilequeue.js
@@ -94,9 +94,11 @@ ol.TileQueue.prototype.loadMoreTiles = function(maxTotalLoading, maxNewLoads) {
  var i, tile;
  for (i = 0; i < newLoads; ++i) {
    tile = /** @type {ol.Tile} */ (this.dequeue()[0]);
-    goog.events.listen(tile, goog.events.EventType.CHANGE,
-        this.handleTileChange, false, this);
-    tile.load();
+    if (tile.getState() === ol.TileState.IDLE) {
+      goog.events.listen(tile, goog.events.EventType.CHANGE,
+          this.handleTileChange, false, this);
+      tile.load();
+      ++this.tilesLoading_;
+    }
  }
-  this.tilesLoading_ += newLoads;
 };