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Safeguard against listeners that recreate the grid

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We need to handle the backbuffer before we fire the loadend event.
Otherwise listeners that call e.g. mergeNewParams() will cause the
backbuffer removal code to fail, because tile.imgDiv (and hence
this._transitionElement) will be null.
This commit is contained in:
ahocevar
2013-01-17 16:24:15 +01:00
parent 0f9010cfb8
commit c742c14a52
1 changed files with 2 additions and 2 deletions
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4
lib/OpenLayers/Layer/Grid.js
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@@ -1104,8 +1104,6 @@ OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
}
//if that was the last tile, then trigger a 'loadend' on the layer
if (this.numLoadingTiles === 0) {
this.loading = false;
this.events.triggerEvent("loadend");
if(this.backBuffer) {
this._transitionElement = tile.imgDiv;
for (var i=this.transitionendEvents.length-1; i>=0; --i) {
@@ -1119,6 +1117,8 @@ OpenLayers.Layer.Grid = OpenLayers.Class(OpenLayers.Layer.HTTPRequest, {
this._removeBackBuffer, this.removeBackBufferDelay
);
}
this.loading = false;
this.events.triggerEvent("loadend");
}
};