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Assert that ol.layer.Tile#getPreload is always set

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This commit is contained in:
Frederic Junod
2015-01-07 16:48:15 +01:00
parent 06fe8288ce
commit df51e55781
3 changed files with 40 additions and 8 deletions
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9
src/ol/layer/tilelayer.js
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@@ -30,18 +30,21 @@ ol.layer.TileProperty = {
ol.layer.Tile = function(opt_options) {
var options = goog.isDef(opt_options) ? opt_options : {};
goog.base(this, /** @type {olx.layer.LayerOptions} */ (options));
if (!goog.isDef(this.getPreload())) {
this.setPreload(0);
}
};
goog.inherits(ol.layer.Tile, ol.layer.Layer);
/**
* @return {number|undefined} The level to preload tiles up to.
* @return {number} The level to preload tiles up to.
* @observable
* @api
*/
ol.layer.Tile.prototype.getPreload = function() {
return /** @type {number|undefined} */ (
this.get(ol.layer.TileProperty.PRELOAD));
return /** @type {number} */ (this.get(ol.layer.TileProperty.PRELOAD));
};
goog.exportProperty(
ol.layer.Tile.prototype,