javascript - 使工具提示插件跟随鼠标而不是静态位置

Question

我正在使用这个工具提示插件: http://www.dynamicdrive.com/dynamicindex5/balloontooltip.htm

它非常有用且高度可定制，因为您可以使用定义为工具提示的 HTML 元素，并且初始化速度非常快；您只需在触发器元素的 rel 属性中定义要用作工具提示的元素的 id。

我使用了很多不同的 div，所以这对我很有帮助。

只是出了点小问题。我希望它跟随鼠标而不是静态位置。

我在最后添加了一些内容:

$(document).mousemove(function (e) {
    amouseX = e.pageX - 30;
    amouseY = e.pageY + 20;
    $(".tooltip").css({ left: amouseX + "px", top: amouseY + "px" });
}); 

并将其添加到 displayballoontip(obj, e)

dropmenuobj.x = amouseX
dropmenuobj.y = amouseY

并将代码中的每个可见性:隐藏更改为显示:无。因为在我添加这些之后，工具提示导致浏览器显示出现一些滚动问题:没有修复它们。

但现在我在使用 Internet Explorer 时遇到了一些问题。它在许多不同的方面都不能很好地工作，例如:我可以看到工具提示从屏幕上的某处移动到鼠标，工具提示不会在鼠标移开时立即消失。

这是我所做的一切的代码:

var disappeardelay=0  //tooltip disappear delay (in miliseconds)
var verticaloffset=0 //vertical offset of tooltip from anchor link, if any
var enablearrowhead=0 //0 or 1, to disable or enable the arrow image
var arrowheadimg=["arrowdown.gif", "arrowup.gif"] //path to down and up arrow images
var arrowheadheight=11 //height of arrow image (amount to reveal)

/////No further editting needed
var ie=document.all
var ns6=document.getElementById&&!document.all
verticaloffset=(enablearrowhead)? verticaloffset+arrowheadheight : verticaloffset

function getposOffset(what, offsettype){
var totaloffset=(offsettype=="left")? what.offsetLeft : what.offsetTop;
var parentEl=what.offsetParent;
while (parentEl!=null){
totaloffset=(offsettype=="left")? totaloffset+parentEl.offsetLeft : totaloffset+parentEl.offsetTop;
parentEl=parentEl.offsetParent;
}
return totaloffset;
}

function showhide(obj, e){
//dropmenuobj.style.left=dropmenuobj.style.top="-500px"
if (e.type=="mouseover")
obj.display="block"
}

function iecompattest(){
return (document.compatMode && document.compatMode!="BackCompat")? document.documentElement : document.body
}

function clearbrowseredge(obj, whichedge){
if (whichedge=="rightedge"){
edgeoffsetx=0
var windowedge=ie && !window.opera? iecompattest().scrollLeft+iecompattest().clientWidth-15 : window.pageXOffset+window.innerWidth-15
dropmenuobj.contentmeasure=dropmenuobj.offsetWidth
if (windowedge-dropmenuobj.x < dropmenuobj.contentmeasure)
edgeoffsetx=dropmenuobj.contentmeasure-obj.offsetWidth
if (dropmenuobj.x-edgeoffsetx+dropmenuobj.contentmeasure>windowedge)
edgeoffsetx=dropmenuobj.x-windowedge+dropmenuobj.contentmeasure
return edgeoffsetx
}
else{
edgeoffsety=0
var topedge=ie && !window.opera? iecompattest().scrollTop : window.pageYOffset
var windowedge=ie && !window.opera? iecompattest().scrollTop+iecompattest().clientHeight-15 : window.pageYOffset+window.innerHeight-18
dropmenuobj.contentmeasure=dropmenuobj.offsetHeight
if (windowedge-dropmenuobj.y < dropmenuobj.contentmeasure) //move up?
edgeoffsety=dropmenuobj.contentmeasure+obj.offsetHeight+(verticaloffset*2)
return edgeoffsety
}
}

function displayballoontip(obj, e){ //main ballooon tooltip function
if (window.event) event.cancelBubble=true
else if (e.stopPropagation) e.stopPropagation()
if (typeof dropmenuobj!="undefined") //hide previous tooltip?
dropmenuobj.style.display="none"
clearhidemenu()
obj.onmouseout=delayhidemenu
dropmenuobj=document.getElementById(obj.getAttribute("rel"))
showhide(dropmenuobj.style, e)
dropmenuobj.x = amouseX
dropmenuobj.y = amouseY
dropmenuobj.style.left=dropmenuobj.x-clearbrowseredge(obj, "rightedge")+"px"
dropmenuobj.style.top=dropmenuobj.y-clearbrowseredge(obj, "bottomedge")+obj.offsetHeight+"px"
if (enablearrowhead)
displaytiparrow()
}

function displaytiparrow(){ //function to display optional arrow image associated with tooltip
tiparrow=document.getElementById("arrowhead")
tiparrow.src=(edgeoffsety!=0)? arrowheadimg[0] : arrowheadimg[1]
var ieshadowwidth=(dropmenuobj.filters && dropmenuobj.filters[0])? dropmenuobj.filters[0].Strength-1 : 0
//modify "left" value depending on whether there's no room on right edge of browser to display it, respectively
tiparrow.style.left=(edgeoffsetx!=0)? parseInt(dropmenuobj.style.left)+dropmenuobj.offsetWidth-tiparrow.offsetWidth-10+"px" : parseInt(dropmenuobj.style.left)+5+"px"
//modify "top" value depending on whether there's no room on right edge of browser to display it, respectively
tiparrow.style.top=(edgeoffsety!=0)? parseInt(dropmenuobj.style.top)+dropmenuobj.offsetHeight-tiparrow.offsetHeight-ieshadowwidth+arrowheadheight+"px" : parseInt(dropmenuobj.style.top)-arrowheadheight+"px"
tiparrow.style.display="block"
}

function delayhidemenu(){
delayhide=setTimeout("dropmenuobj.style.display='none';  if (enablearrowhead) tiparrow.style.display='none'",disappeardelay)
}

function clearhidemenu(){
if (typeof delayhide!="undefined")
clearTimeout(delayhide)
}

function reltoelement(linkobj){ //tests if a link has "rel" defined and it's the ID of an element on page
var relvalue=linkobj.getAttribute("rel")
return (relvalue!=null && relvalue!="" && document.getElementById(relvalue)!=null && document.getElementById(relvalue).className=="tooltip")? true : false
}

function initalizetooltip(){
var all_links=document.getElementsByTagName("a")
if (enablearrowhead){
tiparrow=document.createElement("img")
tiparrow.setAttribute("src", arrowheadimg[0])
tiparrow.setAttribute("id", "arrowhead")
document.body.appendChild(tiparrow)
}
for (var i=0; i<all_links.length; i++){
if (reltoelement(all_links[i])){ //if link has "rel" defined and it's the ID of an element on page
all_links[i].onmouseover=function(e){
var evtobj=window.event? window.event : e
displayballoontip(this, evtobj)
}
all_links[i].onmouseout=delayhidemenu
}
}
}

if (window.addEventListener)
window.addEventListener("load", initalizetooltip, false)
else if (window.attachEvent)
window.attachEvent("onload", initalizetooltip)
else if (document.getElementById)
window.onload=initalizetooltip

$(document).mousemove(function (e) {
    amouseX = e.pageX - 30;
    amouseY = e.pageY + 20;
    $(".tooltip").css({ left: amouseX + "px", top: amouseY + "px" });
});  

Answer 1

有一个关于鼠标移动事件的函数 您可以使用它来更新位置

http://api.jquery.com/mousemove/