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Method to detect opening of an application widget from a second widget

Jay_Gregory

I'm developing an enhanced Google Analytics widget, one that tracks specific layer interactions, map interactions, etc. etc. I'm curious if there is a way to code the Google Analytics widget to detect and track when a user opens any other (or chosen subset) of application widgets. Given the Google Analytics widget essentially is always running, can I include code in its Widget.js that listens for the creation, opening, or instantiation of other widgets in the application. I looked in the widget manager class, but am unsure if widgets have access to each other (because it makes sense if they are compartmentalized).

Thanks!

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Accepted answers

RobertScheitlin__GISP

No, you would just subscribe to the openWidget topic in your widget

topic<SPAN class="punctuation token">.</SPAN><SPAN class="token function">subscribe</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">'openWidget'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">function</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">{</SPAN>
&nbsp; <SPAN class="comment token">//do something</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

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RobertScheitlin__GISP

Jay,

Topic is a dojo class that does not need to be tied to a specific widget for just use the code I posted and it will listen for all widget opens in the app.

Jay_Gregory

But what I want to do is subscribe to the opening of any widget from my Google Analytics widget. So something like:

</CODE><PRE class="lia-code-sample line-numbers language-none"><CODE>var myWidgetNames = ["LayerList","AttributeTable","Legend","Draw"]; for (var i=0; i<myWidgetNames.lenth; i++){ var widget = WidgetManager.getInstance().getWidget(widgetName);    widget.topic.subscribe('openWidget', function(widetName){      GoogleAnalytics.log('widgetOpen', widgetName);    });   });‍‍‍‍‍‍‍‍‍‍‍‍‍

Does that make sense? I want to detect the opening of any widget in the application from the source code of a single widget in the application...

RobertScheitlin__GISP

No, you would just subscribe to the openWidget topic in your widget

topic<SPAN class="punctuation token">.</SPAN><SPAN class="token function">subscribe</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="string token">'openWidget'</SPAN><SPAN class="punctuation token">,</SPAN> <SPAN class="keyword token">function</SPAN><SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">{</SPAN>
&nbsp; <SPAN class="comment token">//do something</SPAN>
<SPAN class="punctuation token">}</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">;</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

Jay_Gregory

Okay, thanks - now that I'm looking at the WidgetManagerClass, I see a triggerWidgetOpen function that publishes an openWidget topic. However, I didn't find any information about that in the documentation. I might need a little help with the code here - supposed I have a widget in my application called "LayerList", and I want to set an event listener in some other widget that triggers when LayerList is opened. I'm unclear what the code would look like.

var widgetManager = WidgetManager.getInstance()

on.widgetManager.triggerWidgetOpen("LayerList")('openWidget', function(a){

do some stuff;

});

I know that's not correct - I'm just not sure how these topics and methods should be used. Any advice would be very helpful.

Thanks!

RobertScheitlin__GISP

Jay,

Sure you can. The WidgetManager class publishes the topic 'openWidget' and 'widgetCreated' and 'widgetActived' that you can subscribe to in your widget.

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