<!DOCTYPE html> <html> <head> <title></title> </head> <body> <style> .tooltip { 300px; height:300px; background:#f00; } </style> <script> var TooltipManager = (function(){ var storedInstance = null; var Tooltip = function(){ this.delayTimeout = null; this.delay = 1500; this.element = document.createElement('div'); this.element.style.display = 'none'; this.element.style.position = 'absolute'; this.element.className = 'tooltip'; document.getElementsByTagName('body')[0].appendChild(this.element); }; Tooltip.prototype = { startDelay : function(e,text){ if(this.delayTimeout == null){ var that = this; var x = e.clientX; var y = e.clientY; this.delayTimeout = setTimeout(function(){ that.show(x,y,text); },this.delay) } }, show : function(x,y,text){ clearTimeout(this.delayTimeout); this.delayTimeout = null; this.element.innerHTML = text; this.element.style.left = x + 'px'; this.element.style.top = (y+20) + 'px'; this.element.style.display = 'block'; }, hide : function(){ clearTimeout(this.delayTimeout); this.delayTimeout = null; this.elements.style.display = 'none'; } }; return { addTooltip : function(targetElement,text){ var tt = this.getTooltip(); addEvent(targetElement,'mouseover',function(e){ tt.startDelay(e,text)}); addEvent(targetElement,'mouseout',function(e){ tt.hide()}) }, getTooltip : function(){ if(storedInstance == null){ storedInstance = new Tooltip(); }; return storedInstance; } } }()) </script> </body> </html>
直接上代码了