ScoDoc/app/static/libjs/bubble.js

101 lines
2.5 KiB
JavaScript

/* -*- mode: javascript -*-
* JavaScript for Help Bubbles (aka tooltips)
*/
function enableTooltips(id){
var links,i,h;
if(!document.getElementById || !document.getElementsByTagName) return;
// AddCss();
h=document.createElement("span");
h.id="btc";
h.setAttribute("id","btc");
h.style.position="absolute";
document.getElementsByTagName("body")[0].appendChild(h);
if(id==null) links=document.getElementsByTagName("a");
else links=document.getElementById(id).getElementsByTagName("a");
for(i=0;i<links.length;i++){
Prepare(links[i]);
}
}
function Prepare(el){
var tooltip,t,b,s,l;
t=el.getAttribute("title");
if(t==null || t.length==0)
return; /* rien si pas de title. Was: t="link:"; */
el.removeAttribute("title");
tooltip=CreateEl("span","tooltip");
s=CreateEl("span","top");
s.appendChild(document.createTextNode(t));
tooltip.appendChild(s);
b=CreateEl("b","bottom");
/* url du lien:
l=el.getAttribute("href");
if(l.length>30)
l=l.substr(0,27)+"...";
b.appendChild(document.createTextNode(l));
*/
tooltip.appendChild(b);
setOpacity(tooltip);
el.tooltip=tooltip;
el.onmouseover=showTooltip;
el.onmouseout=hideTooltip;
el.onmousemove=Locate;
}
function showTooltip(e){
document.getElementById("btc").appendChild(this.tooltip);
Locate(e);
}
function hideTooltip(e){
var d=document.getElementById("btc");
if(d.childNodes.length>0)
d.removeChild(d.firstChild);
}
function setOpacity(el){
el.style.filter="alpha(opacity:95)";
el.style.KHTMLOpacity="0.95";
el.style.MozOpacity="0.95";
el.style.opacity="0.95";
}
function CreateEl(t,c){
var x=document.createElement(t);
x.className=c;
x.style.display="block";
return(x);
}
function AddCss(){
var l=CreateEl("link");
l.setAttribute("type","text/css");
l.setAttribute("rel","stylesheet");
l.setAttribute("href","bubble.js");
l.setAttribute("media","screen");
document.getElementsByTagName("head")[0].appendChild(l);
}
function Locate(e){
var posx=0,posy=0;
if(e==null)
e=window.event;
if(e.pageX || e.pageY){
posx=e.pageX; posy=e.pageY;
}
else if(e.clientX || e.clientY){
if(document.documentElement.scrollTop){
posx=e.clientX+document.documentElement.scrollLeft;
posy=e.clientY+document.documentElement.scrollTop;
}
else{
posx=e.clientX+document.body.scrollLeft;
posy=e.clientY+document.body.scrollTop;
}
}
document.getElementById("btc").style.top=(posy+10)+"px";
document.getElementById("btc").style.left=(posx-20)+"px";
}