//<pre>

// Generic script for doing something fun with an article's geotag

// Planned example: generate a star chart for that location, with two sliders for day and time

//

// To use this script, add "importScript('User:Proteins/genericgeotagscript.js');" to your monobook.js subpage 

// under your user page, as you can see at User:Proteins/monobook.js



function reportGeotagCoordinates() {

	var latitude;

	var longitude;



	var top_node;

	var parent_node;

	var parent_class_name;



	var spans;

	var temp_span;

	var num_spans = 0;

	var span_index = 0;

	var span_class_name = 0;



	var latitude = 0.0;

	var longitude = 0.0;





// Get the bodyContent node

	top_node = document.getElementById('bodyContent');

	if (!top_node) { 

		window.alert("There is no bodyContent node in this article.");

		return;

	}

 

// Get a list of the spans 

	spans = top_node.getElementsByTagName("SPAN");

	if (!spans) { 

		window.alert("There are no SPAN tags in this article.");

		return;

	}

	num_spans = spans.length;

	if (num_spans < 1) { 

		window.alert("There are no spans in this article.");

		return;

	}

 

// Loop over the spans

	latitude = 0.0;

	longitude = 0.0;



	latitude_is_defined = false;

	longitude_is_defined = false;



	for (span_index=0; span_index<num_spans; span_index++) { 

		temp_span = spansspan_index]; 

		if (!temp_span) { continue; } 



		span_class_name = temp_span.className;

		if (!span_class_name) { continue; }



// Get the latitude

		if (span_class_name == "latitude") { 

			parent_node = temp_span.parentNode;

			parent_class_name = parent_node.className;

			if (parent_class_name != "geo-dec geo") { continue; } 

			latitude = temp_span.innerHTML;

			latitude_is_defined = true;

		}



// Get the longitude

		if (span_class_name == "longitude") { 

			parent_node = temp_span.parentNode;

			parent_class_name = parent_node.className;

			if (parent_class_name != "geo-dec geo") { continue; } 

			longitude = temp_span.innerHTML;

			longitude_is_defined = true;

		}

  

	} // closes loop over spans



	if ((longitude_is_defined) && (latitude_is_defined)) { 

		window.alert("Latitude = " + latitude + " \t Longitude = " + longitude + "\n");

	} else { 

		window.alert("The geotag latitude and longitude coordinates were not found on this page.\n");

	}

} // closes function reportGeotagCoordinates()



$(function () {

mw.util.addPortletLink('p-cactions', 'javascript:reportGeotagCoordinates()', 'geo', 'ca-geotag', 'Report the article geotag coordinates', 'g', '');

});

 

//</pre>