Hi,
I'm developping a Google Maps application using the Prototype.js
library, as well for Ajax communication handling as for implementing
my business classes. I've acheived a rather clean code that works
pretty well, but now I need to add custom overlays.
So I'm wondering if there is a way of extending the GOverlay interface
using the Prototype.js classes. It would be neater than the solution I
use for now, that is, the solution shown in the official
documentation.
More precisely, there is my current code :
_ServicesOverlay = function (location)
{
this._location = location;
location.marker.sol = this;
this._container = new Element('div');
}
_ServicesOverlay.prototype = new google.maps.Overlay();
_ServicesOverlay.prototype.initialize = function (map)
{
this._container.style.display = 'none';
map.getPane(G_MAP_MARKER_PANE).appendChild(this._container);
this._map = map; // saves back reference
}
_ServicesOverlay.prototype.redraw = function (force)
{
-- CUT --
}
_ServicesOverlay.prototype.remove = function ()
{
this._container.parentNode.remove(this._container);
}
_ServicesOverlay.prototype.copy = function ()
{
return new ServiceOverlay(this._location);
}
_ServicesOverlay.prototype.filter = function (filter)
{
-- CUT --
this.redraw(true);
}
It's working fine, but it integrates poorly with my code, as I've to
put this in the middle of an init function. Instead, I'd like to
obtain something like this :
_ServiceOverlay = Class.create(google.maps.Overlay, {
initialize: function (map)
{
//...
},
redraw: function (force)
{
//...
},
copy: function ()
{
//...
},
remove: function ()
{
//...
},
filter: function (filter)
{
//...
}
});
It would be a lot cleaner, but I've a problem with the initialize()
function, as it stands as the constructor for Prototype's classes,
while being the initalization function called by the Google Maps
library. Do you know a way to use Prototype there or should I forget
it definitely ?
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