Ym4r user - Nov 2007 - marker event listeners

I''d like to add an event listener for dragging markers, but it looks 
like YM4R GM (and Mapstraction) doesn''t support this.  I need an init
like:

marker = new GMarker(...

GEvent.addListener(marker, "dragend", function() { })

but the current setup makes "anonymous" markers - never creates
variable
that can be used to access them.  Has anyone thought about this? 
Perhaps we can add a "varname" attribute to the overlays to allow 
further use of them?

The follow adds support to make draggable markers (though you can''t 
really use them until the above is addressed).

Index: lib/gm_plugin/overlay.rb
==================================================================---
lib/gm_plugin/overlay.rb    (revision 97)
+++ lib/gm_plugin/overlay.rb    (working copy)
@@ -25,11 +25,13 @@
        end
        #Creates a marker: If an info_window or info_window_tabs is 
present, the response to the click action from the user is setup here.
        def create
-        if @options.empty?
-          creation = "new 
GMarker(#{MappingObject.javascriptify_variable(@point)})"
-        else
-          creation = "new 
GMarker(#{MappingObject.javascriptify_variable(@point)},#{MappingObject.javascriptify_variable(@options)})"
+        creation = "new 
GMarker(#{MappingObject.javascriptify_variable(@point)}"
+        if @options
+          creation +=
",#{MappingObject.javascriptify_variable(@options)}"
          end
+        if @draggable
+          creation +=
",#{MappingObject.javascriptify_variable(@options)}"
+        end
          if @info_window && @info_window.is_a?(String)
            creation = 
"addInfoWindowToMarker(#{creation},#{MappingObject.javascriptify_variable(@info_window)},#{MappingObject.javascriptify_variable(@info_window_options)})"
          elsif @info_window_tabs && @info_window_tabs.is_a?(Hash)

-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA/CoRA Division                    FAX: 303-415-9702
3380 Mitchell Lane                  orion at cora.nwra.com
Boulder, CO 80301              http://www.cora.nwra.com

Orion Poplawski wrote:
> I''d like to add an event listener for dragging markers, but it
looks
> like YM4R GM (and Mapstraction) doesn''t support this.  
Well, I suppose if I read the docs closer...

Got what I needed with:

     @marker = GMarker.new([lat, lng],:title => name, :draggable => true)
     @map.overlay_global_init(@marker, "marker")
     @map.event_init(@marker,"dragend",''function() { var
latlng =
marker.getPoint(); document.form.playground_lat.value = latlng.lat(); 
document.form.playground_lng.value = latlng.lng() }'')

This updates my form with the latitude and longitude of the dragged marker.

Also attaching fixed version of my patch to add "draggable" option. 
There probably is a better, more generic way to add support for more 
options, but I''m a total ruby newbie and this point.



-- 
Orion Poplawski
Technical Manager                     303-415-9701 x222
NWRA/CoRA Division                    FAX: 303-415-9702
3380 Mitchell Lane                  orion at cora.nwra.com
Boulder, CO 80301              http://www.cora.nwra.com
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