// EBubble.js 
//
//   This Javascript is provided by Mike Williams
//   Community Church Javascript Team
//   http://www.bisphamchurch.org.uk/   
//   http://econym.org.uk/gmap/
//
//   This work is licenced under a Creative Commons Licence
//   http://creativecommons.org/licenses/by/2.0/uk/
//
// Version 0.0  13/07/2007 Initial version
// Version 0.1  14/07/2007 Bugfix: Was failing to apply the position offset.
// Version 0.2  30/07/2007 Bugfix: Wasn't clearingout the old contents.
// Version 0.3  21/09/2007 Added noCloseOnClick parameter
// version 0.4  25/12/2007 Bugfix: Problem with offset
// version 0.5  13/01/2009 Bugfix: Problem with offset (thanks to Joerg Wagner)

      function EBubble(id_visore,map,image,size,insize,inset,anchor,noCloseOnClick) {
        // parameters
        var that=this;
        this.map = map;
        this.image=image;
        this.size=size;
        this.insize=insize;
        this.inset=inset;
        this.anchor=anchor;
        this.noCloseOnClick=noCloseOnClick;
        // internal variables
        this.visible = false;
        // browser - specific variables
        this.ie = false;
        var agent = navigator.userAgent.toLowerCase();
        if ((agent.indexOf("msie") > -1) && (agent.indexOf("opera") < 1)){ this.ie = true} else {this.ie = false}

        this.div1 = document.createElement("div");
        this.div1.style.position = "absolute";
        this.div1.style.display="none";
        document.getElementById('bubble_mappa').appendChild(this.div1);


        if (this.ie && this.image.indexOf(".png")>-1) {
          var loader = "filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+this.image+"', sizingMethod='scale');";
          this.div1.innerHTML = '<div style="height:' +this.size.height+ 'px; width:'+this.size.width+'px; ' +loader+ '" ></div>';
        } else {
          this.div1.innerHTML = '<img src="' + this.image + '" width="' + this.size.width +'" height="' + this.size.height +'">';
        }
        // === Close the bubble if the map moves ===
        GEvent.addListener(map, "dragstart", function() {
          that.hide(id_visore);
        } );
        GEvent.addListener(map, "moveend", function() {
          that.hide(id_visore);
        } );
        // === Listen for clicks and mousedowns ===
        GEvent.addDomListener(document.getElementById("wrapper"),"click", function() {
          if (!that.noCloseOnClick) that.hide(id_visore);
          GEvent.trigger(that,"click");
        });
        GEvent.addDomListener(document.getElementById("wrapper"),"mousedown", function() {
          if (!that.noCloseOnClick) that.hide(id_visore);
          GEvent.trigger(that,"click");
        });
		this.div1.id = id_visore;
		arr_visore = id_visore.split("-");
		num_visore = arr_visore[0];
		this.div1.className = num_visore;
        this.div2 = document.createElement("div");
        this.div1.appendChild(this.div2);
        this.div2.style.position = "absolute";
        this.div2.style.left = this.inset.x + "px"; 
        this.div2.style.top = this.inset.y + "px";
        this.div2.style.width = this.insize.width + "px";
        this.div2.style.height = this.insize.height + "px";
        this.div2.className = "fumetto_mappa";
        this.div2.id = id_visore+'a';
        this.div1.style.zIndex = "5000";
      } 
      

      EBubble.prototype.openOnMap = function(point, html, offset,id_visore,map) {
        this.offset = offset||new GPoint(0,0);
        
        this.point = point;
		arr_visore = id_visore.split("-");
		num_visore = arr_visore[0];
		mappa = map;
        //div2.style.backgroundColor = "#0000ff"; 
        document.getElementById(id_visore+'a').innerHTML = html;
		// pixel relative to map world
        var p = map.fromLatLngToDivPixel(point);
		
        // map world relative to map container
        var dragObject = map.getPane(G_MAP_MAP_PANE).parentNode;
        var x = p.x + parseInt(dragObject.style.left);
        var y = p.y + parseInt(dragObject.style.top);
        
        // map container relative to the page
        var container = map.getContainer();
        while(container != null){
          y += container.offsetTop;
          x += container.offsetLeft;
          container = container.offsetParent
        }
        
        // offset by the requested anchor position
        y -= this.anchor.y;
        x -= this.anchor.x;

        // offset by the specified offset position
        y -= this.offset.y;
        x -= this.offset.x;
		$('.'+num_visore).css('display','none');

        // Apply those values 
        document.getElementById(id_visore).style.left = x+"px";
        document.getElementById(id_visore).style.top = y+"px";
        
        // make it visible
        this.visible = true;
        this.show(id_visore);
      }
      
      EBubble.prototype.openOnMarker = function(marker,html,id_visore,map) {
        var vx = marker.getIcon().iconAnchor.x - marker.getIcon().infoWindowAnchor.x;
        var vy = marker.getIcon().iconAnchor.y - marker.getIcon().infoWindowAnchor.y;
        this.openOnMap(marker.getPoint(), html, new GPoint(vx,vy),id_visore,map);
      }
      

      EBubble.prototype.show = function(id_visore) {
        document.getElementById(id_visore).style.display="";
        document.getElementById(id_visore+'a').style.display="";
        this.visible = true;
      }
      
      EBubble.prototype.hide = function(id_visore) {
        document.getElementById(id_visore).style.display="none";
        //this.div2.style.display="none";
        this.visible = false;
      }
      
      EBubble.prototype.isHidden = function() {
        return !this.visible;
      }
      
      EBubble.prototype.supportsHide = function() {
        return true;
      }