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JS implements timer + prompt box

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Release: 2018-04-08 11:29:24
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This time I will bring you JS implementation of timer + prompt box. What are the precautions for JS implementation of timer + prompt box. The following is a practical case, let's take a look.

Business scenario: When the mouse moves into an element, a prompt box is displayed for introduction. It will disappear automatically when the mouse is removed. Introduce ToolTip.js and ToolTip.css

Main method: ToolTip.show (id of the element to be prompted, as long as it is not repeated, html text to be prompted, width (optional), height (optional) );

ToolTip.show(obj, id, html, width, height);

The effect is as follows:

1. Display text:

2: Display pictures

3: Display website

js code: F :\Html5\Plugins\ToolTip\js\ToolTip.js ​

(function () {
 var ToolTip = {};
 /**
 * 显示函数
 */
 ToolTip._showTip = function (parentId, childId, html, width, height) {
 var parent = document.getElementById(parentId)//要提示的元素
 var child = document.getElementById(childId);
 if (child === null) {//创建
  var toolTip = document.createElement("p");
  toolTip.classList = "ui-tooltip-box";
  toolTip.id = childId;
  toolTip.innerHTML = html;
  parent.appendChild(toolTip);
  toolTip.style.width = width ? width + "px" : "auto"
  toolTip.style.height = height ? height + "px" : "auto"
  //定位:
  toolTip.style.position = "absolute";
  toolTip.style.display = "block";
  var left = parent.offsetLeft;
  var top = parent.offsetTop;
  if (left + toolTip.offsetWidth > document.body.clientWidth) {
  left = document.body.clientWidth / 2;
  }
  toolTip.style.left = left + "px";
  toolTip.style.top = top + 20 + "px";
  parent.onmouseleave = function (ev) {
  setTimeout(function () { //延迟:
   document.getElementById(childId).style.display = "none";//隐藏
  }, 300);
  }
 } else {
  //显示
  document.getElementById(childId).style.display = "block";
 }
 },
 /**
  * 调用入口
  */
 ToolTip.show = function (parentId, childId, html, width, height) {
  var parent = document.getElementById(obj)
  parent.onmouseenter = function (ev) {
  ToolTip._showTip(parentId, childId, html, width, height)
  }
 }
 window.ToolTip = ToolTip;
})();//为防止污染,将方法写在匿名函数中
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html code: F:\Html5\Plugins\ToolTip\ToolTip.html

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>提示框</title>
 <link rel="stylesheet" type="text/css" href="ToolTip.css" rel="external nofollow" >
</head>
<body>
<p class="ui-tooltip-demo">
 <p><a class="ui-tooltip" id="tooltip-text">唐诗</a></p>
 <p><a class="ui-tooltip" id="tooltip-photo">背景图片</a></p>
 <p><a class="ui-tooltip" id="tooltip-poem">Yi人诗社</a></p>
</p>
<script src="js/ToolTip.js"></script>
<script>
//调用方式
 ToolTip.show("tooltip-text", "01", "唐诗泛指创作于唐朝的诗" +
 "。唐诗是中华民族最珍贵的文化遗产之一,是" +
 "中华文化宝库中的一颗明珠," +
 "同时也对世界上许多民族和国家的文化发展产生了很大影响," +
 "对于后人研究唐代的政治、民情、风俗、" +
 "文化等都有重要的参考意义和价值。",300,90);
 ToolTip.show("tooltip-photo", "02", "<img src=\"imgs/bg.jpg\" height=\"80px\">",150,80);
 var html='<iframe src="http://www.toly.top" width="480px" height="300px"/>'
 ToolTip.show("tooltip-poem", "03", html);
</script>
</body>
</html>
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css code: F:\Html5\ Plugins\ToolTip\ToolTip.css

body {
 font-size: 14px;
 line-height: 1.8;
 background-image: url("imgs/bg.jpg");
}
.ui-tooltip-demo {
 width: 500px;
 margin: 30px auto;
 padding: 20px 30px;
 background-color: rgba(100%, 100%, 100%, 0.4);
 border-radius: 10px;
 text-align: center;
 box-shadow: 2px 1px 0px 3px rgba(0, 0, 0, 0.2);
}
.ui-tooltip-demo .ui-tooltip {
 color: #03f;
 font-size: 18px;
 cursor: help;
}
.ui-tooltip-box {
 display: block;
 background: #fff;
 line-height: 1.6;
 border: 1px solid #6cf;
 color: #333;
 padding: 20px;
 font-size: 12px;
 border-radius: 5px;
 overflow: auto;
}
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I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

Recommended reading:

Detailed explanation of the use of vue's single-page application front-end routing

How to use vue cli to upgrade webapck4

D3.js implementation of dynamic dashboard case

The above is the detailed content of JS implements timer + prompt box. For more information, please follow other related articles on the PHP Chinese website!

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