Metacat

/*

Author:       Steven Ottens AT geodan.nl

License: LGPL as per: http://www.gnu.org/copyleft/lesser.html

// Ensure this object's dependancies are loaded.

mapbuilder.loadScript(baseDir+"/widget/ButtonBase.js");

/**

 * When this button is pressed the map will reload with it's original extent

 * @constructor

 * @base ButtonBase

 * @author Steven Ottens AT Geodan.nl

 * @param widgetNode      The widget node from the Config XML file.

 * @param model  The model for this widget

 */

function Forward(widgetNode, model) {

   * @param objRef reference to this object.

   * @return {OpenLayers.Control} instance of the OL control.

    var Control = OpenLayers.Class( OpenLayers.Control, {

      type: OpenLayers.Control.TYPE_BUTTON,

      trigger: function() {

              var objRef = this.objRef;

              objRef.targetModel.setParam("historyForward");

              var nextExtent = objRef.targetModel.nextExtent;

              if(nextExtent){

                objRef.targetModel.setParam("historyStop");

                this.map.setCenter(nextExtent.center);

                this.map.zoomToScale(nextExtent.scale);

                objRef.targetModel.setParam("historyStart");

              }

      },

    });

    return Control;

}