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MM.Follower = function(map, location, content, dimensions) {
this.coord = map.locationCoordinate(location);
this.offset = new com.modestmaps.Point(0, 0);
this.dimensions = dimensions || new com.modestmaps.Point(100, 50);
this.padding = new com.modestmaps.Point(10, 10);
this.offset = new com.modestmaps.Point(0, -this.dimensions.y);
var follower = this;
var callback = function(m, a) { return follower.draw(m); };
map.addCallback('drawn', callback);
this.div = document.createElement('div');
this.div.style.position = 'absolute';
this.div.style.width = this.dimensions.x + 'px';
this.div.style.height = this.dimensions.y + 'px';
//this.div.style.backgroundColor = 'white';
//this.div.style.border = 'solid black 1px';
this.div.innerHTML = content;
MM.addEvent(this.div, 'mousedown', function(e) {
if(!e) e = window.event;
return com.modestmaps.cancelEvent(e);
});
map.parent.appendChild(this.div);
this.draw(map);
};
MM.Follower.prototype = {
div: null,
coord: null,
offset: null,
dimensions: null,
padding: null,
draw: function(map) {
var point;
try {
point = map.coordinatePoint(this.coord);
} catch(e) {
// too soon?
return;
}
if (point.x + this.dimensions.x + this.offset.x < 0) {
// too far left
this.div.style.display = 'none';
} else if(point.y + this.dimensions.y + this.offset.y < 0) {
// too far up
this.div.style.display = 'none';
} else if(point.x + this.offset.x > map.dimensions.x) {
// too far right
this.div.style.display = 'none';
} else if(point.y + this.offset.y > map.dimensions.y) {
// too far down
this.div.style.display = 'none';
} else {
this.div.style.display = 'block';
this.div.style.left = point.x + this.offset.x + 'px';
this.div.style.top = point.y + this.offset.y + 'px';
}
}
};
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