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Interface for GetFeatureInfo

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When a source implements this interface, the layer renderer can
access the source to get feature info.
This commit is contained in:
ahocevar
2013-07-31 12:09:39 +02:00
parent 5307e5ea3f
commit f333acc183
2 changed files with 38 additions and 0 deletions
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20
src/ol/renderer/layerrenderer.js
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@@ -73,6 +73,26 @@ ol.renderer.Layer = function(mapRenderer, layer) {
goog.inherits(ol.renderer.Layer, goog.Disposable);
/**
* @param {ol.Pixel} pixel Pixel coordinate relative to the map viewport.
* @param {function(string, ol.layer.Layer)} success Callback for
* successful queries. The passed arguments are the resulting feature
* information and the layer.
* @param {function()=} opt_error Callback for unsuccessful queries.
*/
ol.renderer.Layer.prototype.getFeatureInfoForPixel =
function(pixel, success, opt_error) {
var layer = this.getLayer();
var source = layer.getSource();
if (goog.isFunction(source.getFeatureInfoForPixel)) {
var callback = function(layerFeatureInfo) {
success(layerFeatureInfo, layer);
};
source.getFeatureInfoForPixel(pixel, this.getMap(), callback, opt_error);
}
};
/**
* @protected
* @return {ol.layer.Layer} Layer.