/*
 * Constructor for OzwindPhotoMapTypeControl
 */
function OzwindPhotoMapTypeControl(opt_opts) {
  this.options = opt_opts || {};
}

OzwindPhotoMapTypeControl.prototype = new GControl();

/**
 * Is called by GMap2's addOverlay method. Creates the button 
 *  and appends to the map div.
 * @param {GMap2} map The map that has had this OzwindPhotoMapTypeControl added to it.
 * @return {DOM Object} Div that holds the control
 */ 
OzwindPhotoMapTypeControl.prototype.initialize = function(map) {
	var container = document.createElement("div");
	var me = this;

	var photoDiv = me.createButton_("Photos");
	photoDiv.style.marginRight = "8px";
	GEvent.addDomListener(photoDiv, "click", function() {
/*		if (albumChange){
			// If the album changes then destroy the photoLayer so it gets refetched
			if (me.photoLayer){
			me.photoLayer.hide();
			map.removeOverlay(me.photoLayer);
			me.photoLayer=0;
	  albumChange = 0;
			}
	}	*/
	photoShow = (photoShow?false:true);
/*    if (me.photoLayer) {
      if (!me.photoLayer.isHidden()) {
        me.photoLayer.hide();
      } else {
        me.photoLayer.show();
      }
    } else {
//! check whether slideshow uses picskml
//! thumbskml replace this geolayer
		me.photoLayer =  new GGeoXml("http://6.latest.ozwind1.appspot.com/picskml?album=" + ssAlbum.replace(/ /,'%20') );
  map.addOverlay(me.photoLayer)
      me.photoLayer.show();
    }
    me.toggleButton_(photoDiv.firstChild, !me.photoLayer.isHidden());
*/
onMapUpdated();
  me.toggleButton_(photoDiv.firstChild, photoShow);
  });
  me.toggleButton_(photoDiv.firstChild, photoShow);

  var mapDiv = me.createButton_("Map");
  var satDiv = me.createButton_("Satellite");
  var hybDiv = me.createButton_("Hybrid");
 
  me.assignButtonEvent_(mapDiv, map, G_NORMAL_MAP, [satDiv, hybDiv]);
  me.assignButtonEvent_(satDiv, map, G_SATELLITE_MAP, [mapDiv, hybDiv]);
  me.assignButtonEvent_(hybDiv, map, G_HYBRID_MAP, [satDiv, mapDiv]);
  GEvent.addListener(map, "maptypechanged", function() {
    if (map.getCurrentMapType() == G_NORMAL_MAP) {
      GEvent.trigger(mapDiv, "click"); 
    } else if (map.getCurrentMapType() == G_SATELLITE_MAP) {
      GEvent.trigger(satDiv, "click");
    } else if (map.getCurrentMapType() == G_HYBRID_MAP) {
      GEvent.trigger(hybDiv, "click");
    }
  });

  container.appendChild(photoDiv);
  container.appendChild(mapDiv);
  container.appendChild(satDiv);
  container.appendChild(hybDiv);

  map.getContainer().appendChild(container);

  GEvent.trigger(map, "maptypechanged");
  return container;
}

/*
 * Creates simple buttons with text nodes. 
 * @param {String} text Text to display in button
 * @return {DOM Object} The div for the button.
 */
OzwindPhotoMapTypeControl.prototype.createButton_ = function(text) {
  var buttonDiv = document.createElement("div");
  this.setButtonStyle_(buttonDiv);
  buttonDiv.style.cssFloat = "left";
  buttonDiv.style.styleFloat = "left";
  var textDiv = document.createElement("div");
  textDiv.appendChild(document.createTextNode(text));
  textDiv.style.width = "6em";
  buttonDiv.appendChild(textDiv);
  return buttonDiv;
}

/*
 * Assigns events to MapType buttons to change maptype
 *  and toggle button styles correctly for all buttons
 *  when button is clicked.
 *  @param {DOM Object} div Button's div to assign click to
 *  @param {GMap2} Map object to change maptype of.
 *  @param {Object} mapType GMapType to change map to when clicked
 *  @param {Array} otherDivs Array of other button divs to toggle off
 */  
OzwindPhotoMapTypeControl.prototype.assignButtonEvent_ = function(div, map, mapType, otherDivs) {
  var me = this;

  GEvent.addDomListener(div, "click", function() {
    for (var i = 0; i < otherDivs.length; i++) {
      me.toggleButton_(otherDivs[i].firstChild, false);
    }
    me.toggleButton_(div.firstChild, true);
    map.setMapType(mapType);
  });
}

/*
 * Changes style of button to appear on/off depending on boolean passed in.
 * @param {DOM Object} div  Button div to change style of
 * @param {Boolean} boolCheck Used to decide to use on style or off style
 */
OzwindPhotoMapTypeControl.prototype.toggleButton_ = function(div, boolCheck) {
   div.style.fontWeight = boolCheck ? "bold" : "";
   div.style.border = "1px solid white";
   var shadows = boolCheck ? ["Top", "Left"] : ["Bottom", "Right"];
   for (var j = 0; j < shadows.length; j++) {
     div.style["border" + shadows[j]] = "1px solid #b0b0b0";
  } 
}

/*
 * Required by GMaps API for controls. 
 * @return {GControlPosition} Default location for control
 */
OzwindPhotoMapTypeControl.prototype.getDefaultPosition = function() {
  return new GControlPosition(G_ANCHOR_TOP_RIGHT, new GSize(7, 7));
}

/*
 * Sets the proper CSS for the given button element.
 * @param {DOM Object} button Button div to set style for
 */
OzwindPhotoMapTypeControl.prototype.setButtonStyle_ = function(button) {
  button.style.color = "#000000";
  button.style.backgroundColor = "white";
  button.style.font = "small Arial";
  button.style.border = "1px solid black";
  button.style.padding = "0px";
  button.style.margin= "0px";
  button.style.textAlign = "center";
  button.style.fontSize = "12px"; 
  button.style.cursor = "pointer";
}