topic Re: FeatureLayer click event handler event object not as expected. in ArcGIS JavaScript Maps SDK Questions

FeatureLayer click event handler event object not as expected.

YvesRichard — Thu, 28 Nov 2013 16:46:04 GMT

I am binding a simple click handler to a FeatureLayer using the new 'on' strategy. All works fine in all browser except latest Firefox (25.0.1). The event object returned to the handler only has the ClientX & ClientY properties. To make things even more confusing looking at the esri docs here: https://developers.arcgis.com/en/javascript/jsapi/featurelayer-amd.html#click says that the handler should not expect a event object which contradicts the docs for the connect style handlers: https://developers.arcgis.com/en/javascript/jsapi/featurelayer-amd.html#onclick

1. how can i get around the Firefox issue?
2. Can you explain this discrepancy in the docs?

Regards, Yves

p.s. using esri js sdk ver 3.7

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Re: FeatureLayer click event handler event object not as expected.

JasonZou — Fri, 29 Nov 2013 00:46:27 GMT

One thing I would try is to

Change:
on(layer, "click", function(evt) {})

To:
layer.on("click", function(evt) {});

Based om dojo/on document, on(layer, "click", ...) is applied to dom elements, which means it considers layer as a dom element instead of an esri/layers/FeatureLayer. Use layer.on("click", ...) to define the callback function for FeatureLayer.onClick event.

Re: FeatureLayer click event handler event object not as expected.

YvesRichard — Fri, 29 Nov 2013 00:59:34 GMT

Tried you solution but no luck still getting the same result.

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Any other ideas?

Re: FeatureLayer click event handler event object not as expected.

JohnGravois — Mon, 02 Dec 2013 14:31:37 GMT

Yves,
in this sample, we dig into the returned object for the graphic associated with the click event using 'e.graphic'. you're unable to do the same?

heres a conceptual article that details the differences between the objects returned by on style event listeners and connect style event listeners
https://developers.arcgis.com/en/javascript/jshelp/inside_events.html

Re: FeatureLayer click event handler event object not as expected.

YvesRichard — Mon, 02 Dec 2013 16:22:59 GMT

haha my bad!

I was just hovering over the evt variable which only showed the clientX & clientY values and I thought that those where the only properties on the object but on closer inspection all the esri properties are present.

On my second note about the docs though... shouldn't the click handler be served a mouse event? In the docs it says it doesn't receive one. (see attached image)

Thank you for your time.

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Re: FeatureLayer click event handler event object not as expected.

JohnGravois — Mon, 02 Dec 2013 16:26:55 GMT

yeah, we'll have to correct the doc for the on style click event.