If you're looking for a solution to your problem, delving into the code of an uncomplicated javascript tooltip script might give you the answers you seek: .
This particular script adeptly identifies the boundaries of the browser window and adjusts its display position accordingly with smooth transitions. Experimenting with the tooltip demonstrations at the beginning of the page will illustrate this concept effectively.
To address your specific question - the most effective approach involves utilizing javascript to determine the user's browser type, followed by employing appropriate calculations based on screen width, height, and the current positioning of the browser window to showcase the tooltip accurately. Detailed examples of this conditional logic pertaining to browsers and screen dimensions can be explored in the provided code :)
I hope this explanation proves beneficial.
UPDATE:
Upon reflection, I've decided to include the JS segment from the aforementioned code for future reference in case the link becomes inaccessible. Though somewhat enigmatic, it remains a functional script aimed at managing tooltip placements relative to the browser window:
var offsetxpoint=-60 //Adjust x offset of tooltip
var offsetypoint=20 //Modify y offset of tooltip
var ie=document.all
var ns6=document.getElementById && !document.all
var enabletip=false
if (ie||ns6)
var tipobj=document.all? document.all["dhtmltooltip"] : document.getElementById? document.getElementById("dhtmltooltip") : ""
function ietruebody(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}
function ddrivetip(thetext, thecolor, thewidth){
if (ns6||ie){
if (typeof thewidth!="undefined") tipobj.style.width=thewidth+"px"
if (typeof thecolor!="undefined" && thecolor!="") tipobj.style.backgroundColor=thecolor
tipobj.innerHTML=thetext
enabletip=true
return false
}
}
function positiontip(e){
if (enabletip){
var curX=(ns6)?e.pageX : event.clientX+ietruebody().scrollLeft;
var curY=(ns6)?e.pageY : event.clientY+ietruebody().scrollTop;
//Calculate distance between mouse and window corner
var rightedge=ie&&!window.opera? ietruebody().clientWidth-event.clientX-offsetxpoint : window.innerWidth-e.clientX-offsetxpoint-20
var bottomedge=ie&&!window.opera? ietruebody().clientHeight-event.clientY-offsetypoint : window.innerHeight-e.clientY-offsetypoint-20
var leftedge=(offsetxpoint<0)? offsetxpoint*(-1) : -1000
//Adjust menu position if not enough horizontal space
if (rightedge<tipobj.offsetWidth)
//Shift menu to left by its width
tipobj.style.left=ie? ietruebody().scrollLeft+event.clientX-tipobj.offsetWidth+"px" : window.pageXOffset+e.clientX-tipobj.offsetWidth+"px"
else if (curX<leftedge)
tipobj.style.left="5px"
else
//Position menu horizontally where mouse is
tipobj.style.left=curX+offsetxpoint+"px"
//Similar vertical position adjustment
if (bottomedge<tipobj.offsetHeight)
tipobj.style.top=ie? ietruebody().scrollTop+event.clientY-tipobj.offsetHeight-offsetypoint+"px" : window.pageYOffset+e.clientY-tipobj.offsetHeight-offsetypoint+"px"
else
tipobj.style.top=curY+offsetypoint+"px"
tipobj.style.visibility="visible"
}
}
function hideddrivetip(){
if (ns6||ie){
enabletip=false
tipobj.style.visibility="hidden"
tipobj.style.left="-1000px"
tipobj.style.backgroundColor=''
tipobj.style.width=''
}
}
document.onmousemove=positiontip