/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU AFFERO General Public License as published by
the Free Software Foundation; either version 3 of the License, or
any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
or see http://www.gnu.org/licenses/agpl.txt.
*/

// OSRM Layers control
// [extension of Layers.Control with OSRM styling and additional query methods]
OSRM.Control.Layers = L.Control.Layers.extend({
	
	// query functionality
	getActiveLayerName: function () {
		var i, input, obj,
		inputs = this._form.getElementsByTagName('input'),
		inputsLen = inputs.length;
	
		for (i = 0; i < inputsLen; i++) {
			input = inputs[i];
			obj = this._layers[input.layerId];
			if (input.checked && !obj.overlay) {
				return obj.name;
			}
		}
	},
	getActiveLayer: function () {
		var i, input, obj,
		inputs = this._form.getElementsByTagName('input'),
		inputsLen = inputs.length;
	
		for (i = 0; i < inputsLen; i++) {
			input = inputs[i];
			obj = this._layers[input.layerId];
			if (input.checked && !obj.overlay) {
				return obj.layer;
			}
		}
	},
	
	// overwrite Control.Layers methods to get OSRM styling
	_initLayout: function () {
		L.Control.Layers.prototype._initLayout.apply(this);
		this._container.className = "box-wrapper gui-control-wrapper";
		this._layersLink.className = "box-content gui-control gui-layers";
		this._form.className = "box-content gui-control gui-layers-list medium-font";	
	
		this._baseLayersList.className = "gui-layers-base";	
		this._separator.className = "gui-layers-separator";
		this._overlaysList.className = "gui-layers-overlays";
	},
	_expand: function () {
		L.DomUtil.addClass(this._container, 'gui-layers-expanded');
	},
	_collapse: function () {
		this._container.className = this._container.className.replace(' gui-layers-expanded', '');
	}

});