本文作者:佚名

tooltip

佚名 2019-07-01 ???
摘要:1. JS文件代码:tooltip.js (请不要更改!避免发生错误!)var viewport = { getWinWidth: function () { this.width = 0; if (wi


1. JS文件代码:tooltip.js (请不要更改!避免发生错误!)  
 
var viewport = {
  getwinWidth: function () {
    this.width = 0;
    if (window.innerWidth) this.width = window.innerWidth - 18;
    else if (document.documentElement && document.documentElement.clientWidth)
    this.width = document.documentElement.clientWidth;
    else if (document.body && document.body.clientWidth)
    this.width = document.body.clientWidth;
  },
 
  getWinHeight: function () {
    this.height = 0;
    if (window.innerHeight) this.height = window.innerHeight - 18;
   else if (document.documentElement && document.documentElement.clientHeight)
    this.height = document.documentElement.clientHeight;
   else if (document.body && document.body.clientHeight)
    this.height = document.body.clientHeight;
  },
 
  getScrollX: function () {
    this.scrollX = 0;
   if (typeof window.pageXOffset == "number") this.scrollX = window.pageXOffset;
   else if (document.documentElement && document.documentElement.scrollLeft)
    this.scrollX = document.documentElement.scrollLeft;
   else if (document.body && document.body.scrollLeft)
    this.scrollX = document.body.scrollLeft;
   else if (window.scrollX) this.scrollX = window.scrollX;
  },
 
  getScrollY: function () {
    this.scrollY = 0;   
    if (typeof window.pageYOffset == "number") this.scrollY = window.pageYOffset;
    else if (document.documentElement && document.documentElement.scrollTop)
    this.scrollY = document.documentElement.scrollTop;
   else if (document.body && document.body.scrollTop)
    this.scrollY = document.body.scrollTop;
   else if (window.scrollY) this.scrollY = window.scrollY;
  },
 
  getAll: function () {
    this.getWinWidth(); this.getWinHeight();
    this.getScrollX();  this.getScrollY();
  }
 
}

var dw_event = {
 
  add: function(obj, etype, fp, cap) {
    cap = cap || false;
    if (obj.addEventListener) obj.addEventListener(etype, fp, cap);
    else if (obj.attachEvent) obj.attachEvent("on" + etype, fp);
  },

  remove: function(obj, etype, fp, cap) {
    cap = cap || false;
    if (obj.removeEventListener) obj.removeEventListener(etype, fp, cap);
    else if (obj.detachEvent) obj.detachEvent("on" + etype, fp);
  },

  DOMit: function(e) {
    e = e? e: window.event;
    e.tgt = e.srcElement? e.srcElement: e.target;
   
    if (!e.preventDefault) e.preventDefault = function () { return false; }
    if (!e.stopPropagation) e.stopPropagation = function () { if (window.event) window.event.cancelBubble = true; }
       
    return e;
  }
 
}

var Tooltip = {
    followMouse: true,
    offX: 8,
    offY: 12,
    tipID: "tipDiv",
    showDelay: 100,
    hideDelay: 200,
   
    ready:false, timer:null, tip:null,
 
    init: function() { 
        if ( document.createElement && document.body && typeof document.body.appendChild != "undefined" ) {
            if ( !document.getElementById(this.tipID) ) {
                var el = document.createElement("DIV");
                el.id = this.tipID; document.body.appendChild(el);
            }
            this.ready = true;
        }
    },
   
    show: function(e, msg) {
        if (this.timer) { clearTimeout(this.timer); this.timer = 0; }
        this.tip = document.getElementById( this.tipID );
        if (this.followMouse) // set up mousemove
            dw_event.add( document, "mousemove", this.trackMouse, true );
        this.writeTip("");  // for mac ie
        this.writeTip(msg);
        viewport.getAll();
        this.positionTip(e);
        this.timer = setTimeout("Tooltip.toggleVis('" + this.tipID + "', 'visible')", this.showDelay);
    },
   
    writeTip: function(msg) {
        if ( this.tip && typeof this.tip.innerhtml != "undefined" ) this.tip.innerHTML = msg;
    },
   
    positionTip: function(e) {
        if ( this.tip && this.tip.style ) {
            // put e.pageX/Y first! (for Safari)
            var x = e.pageX? e.pageX: e.clientX + viewport.scrollX;
            var y = e.pageY? e.pageY: e.clientY + viewport.scrollY;
   
            if ( x + this.tip.offsetWidth + this.offX > viewport.width + viewport.scrollX ) {
                x = x - this.tip.offsetWidth - this.offX;
                if ( x < 0 ) x = 0;
            } else x = x + this.offX;
       
            if ( y + this.tip.offsetHeight + this.offY > viewport.height + viewport.scrollY ) {
                y = y - this.tip.offsetHeight - this.offY;
                if ( y < viewport.scrollY ) y = viewport.height + viewport.scrollY - this.tip.offsetHeight;
            } else y = y + this.offY;
           
            this.tip.style.left = x + "px"; this.tip.style.top = y + "px";
        }
    },
   
    hide: function() {
        if (this.timer) { clearTimeout(this.timer); this.timer = 0; }
        this.timer = setTimeout("Tooltip.toggleVis('" + this.tipID + "', 'hidden')", this.hideDelay);
        if (this.followMouse) // release mousemove
            dw_event.remove( document, "mousemove", this.trackMouse, true );
        this.tip = null;
    },

    toggleVis: function(id, vis) { // to check for el, prevent (rare) errors
        var el = document.getElementById(id);
        if (el) el.style.visibility = vis;
    },
   
    trackMouse: function(e) {
     e = dw_event.DOMit(e);
      Tooltip.positionTip(e);
    }
   
}

Tooltip.init();

2. 头部<head>……</head>代码:

<script type="text/javascript">
function doTooltip(e, msg) {
  if ( typeof Tooltip == "undefined" || !Tooltip.ready ) return;
  Tooltip.show(e, msg);
}

function hideTip() {
  if ( typeof Tooltip == "undefined" || !Tooltip.ready ) return;
  Tooltip.hide();
}
</script>

3. <body>……</body>引用:

<script src="js文件存放目录/tooltip.js" type="text/javascript"></script>

<a href="" onmouseover="doTooltip(event,'提示文字')" onmouseout="hideTip()">链接</a>

未经允许不得转载:

作者:佚名,标题:tooltip,原文地址:https://www.vfjianzhan.com/android/201907/112004.html发布于2019-07-01
转载或复制请以超链接形式并注明出处唯福建站

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