js 拉动边框改变大小网络版

来源:互联网 发布:nba2kol戴维斯值数据 编辑:程序博客网 时间:2024/05/19 19:40
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>窗口拖拽(改变大小/最小化/最大化/还原/关闭)</title><style type="text/css"> body,div,h2{margin:0;padding:0;}body{background:url(images/bg.jpg);font:12px/1.5 \5fae\8f6f\96c5\9ed1;color:#333;}#drag{position:absolute;top:100px;left:100px;width:300px;height:160px;background:#e9e9e9;border:1px solid #444;border-radius:5px;box-shadow:0 1px 3px 2px #666;}#drag .title{position:relative;height:27px;margin:5px;}#drag .title h2{font-size:14px;height:27px;line-height:24px;border-bottom:1px solid #A1B4B0;}#drag .title div{position:absolute;height:19px;top:2px;right:0;}#drag .title a,a.open{float:left;width:21px;height:19px;display:block;margin-left:5px;background:url(images/tool.png) no-repeat;}a.open{position:absolute;top:10px;left:50%;margin-left:-10px;background-position:0 0;}a.open:hover{background-position:0 -29px;}#drag .title a.min{background-position:-29px 0;}#drag .title a.min:hover{background-position:-29px -29px;}#drag .title a.max{background-position:-60px 0;}#drag .title a.max:hover{background-position:-60px -29px;}#drag .title a.revert{background-position:-149px 0;display:none;}#drag .title a.revert:hover{background-position:-149px -29px;}#drag .title a.close{background-position:-89px 0;}#drag .title a.close:hover{background-position:-89px -29px;}#drag .content{overflow:auto;margin:0 5px;}#drag .resizeBR{position:absolute;width:14px;height:14px;right:0;bottom:0;overflow:hidden;cursor:nw-resize;background:url(images/resize.png) no-repeat;}#drag .resizeL,#drag .resizeT,#drag .resizeR,#drag .resizeB,#drag .resizeLT,#drag .resizeTR,#drag .resizeLB{position:absolute;background:#000;overflow:hidden;opacity:0;filter:alpha(opacity=0);}#drag .resizeL,#drag .resizeR{top:0;width:5px;height:100%;cursor:w-resize;}#drag .resizeR{right:0;}#drag .resizeT,#drag .resizeB{width:100%;height:5px;cursor:n-resize;}#drag .resizeT{top:0;}#drag .resizeB{bottom:0;}#drag .resizeLT,#drag .resizeTR,#drag .resizeLB{width:8px;height:8px;background:#FF0;}#drag .resizeLT{top:0;left:0;cursor:nw-resize;}#drag .resizeTR{top:0;right:0;cursor:ne-resize;}#drag .resizeLB{left:0;bottom:0;cursor:ne-resize;}</style><script type="text/javascript"> /*-------------------------- + 获取id, class, tagName +-------------------------- */var get = {  byId: function(id) {    return typeof id === "string" ? document.getElementById(id) : id  },  byClass: function(sClass, oParent) {    var aClass = [];    var reClass = new RegExp("(^| )" + sClass + "( |$)");    var aElem = this.byTagName("*", oParent);    for (var i = 0; i < aElem.length; i++) reClass.test(aElem[i].className) && aClass.push(aElem[i]);    return aClass  },  byTagName: function(elem, obj) {    return (obj || document).getElementsByTagName(elem)  }};var dragMinWidth = 250;var dragMinHeight = 124;/*-------------------------- + 拖拽函数 +-------------------------- */function drag(oDrag, handle){  var disX = dixY = 0;  var oMin = get.byClass("min", oDrag)[0];  var oMax = get.byClass("max", oDrag)[0];  var oRevert = get.byClass("revert", oDrag)[0];  var oClose = get.byClass("close", oDrag)[0];  handle = handle || oDrag;  handle.style.cursor = "move";  handle.onmousedown = function (event)  {    var event = event || window.event;    disX = event.clientX - oDrag.offsetLeft;    disY = event.clientY - oDrag.offsetTop;    document.onmousemove = function (event)    {      var event = event || window.event;      var iL = event.clientX - disX;      var iT = event.clientY - disY;      var maxL = document.documentElement.clientWidth - oDrag.offsetWidth;      var maxT = document.documentElement.clientHeight - oDrag.offsetHeight;      iL <= 0 && (iL = 0);      iT <= 0 && (iT = 0);      iL >= maxL && (iL = maxL);      iT >= maxT && (iT = maxT);      oDrag.style.left = iL + "px";      oDrag.style.top = iT + "px";      return false    };    document.onmouseup = function ()    {      document.onmousemove = null;      document.onmouseup = null;      this.releaseCapture && this.releaseCapture()    };    this.setCapture && this.setCapture();    return false  };    //最大化按钮  oMax.onclick = function ()  {    oDrag.style.top = oDrag.style.left = 0;    oDrag.style.width = document.documentElement.clientWidth - 2 + "px";    oDrag.style.height = document.documentElement.clientHeight - 2 + "px";    this.style.display = "none";    oRevert.style.display = "block";  };  //还原按钮  oRevert.onclick = function ()  {        oDrag.style.width = dragMinWidth + "px";    oDrag.style.height = dragMinHeight + "px";    oDrag.style.left = (document.documentElement.clientWidth - oDrag.offsetWidth) / 2 + "px";    oDrag.style.top = (document.documentElement.clientHeight - oDrag.offsetHeight) / 2 + "px";    this.style.display = "none";    oMax.style.display = "block";  };  //最小化按钮  oMin.onclick = oClose.onclick = function ()  {    oDrag.style.display = "none";    var oA = document.createElement("a");    oA.className = "open";    oA.href = "javascript:;";    oA.title = "还原";    document.body.appendChild(oA);    oA.onclick = function ()    {      oDrag.style.display = "block";      document.body.removeChild(this);      this.onclick = null;    };  };  //阻止冒泡  oMin.onmousedown = oMax.onmousedown = oClose.onmousedown = function (event)  {    this.onfocus = function () {this.blur()};    (event || window.event).cancelBubble = true   };}/*-------------------------- + 改变大小函数 +-------------------------- */function resize(oParent, handle, isLeft, isTop, lockX, lockY){  handle.onmousedown = function (event)  {    var event = event || window.event;    var disX = event.clientX - handle.offsetLeft;    var disY = event.clientY - handle.offsetTop;      var iParentTop = oParent.offsetTop;    var iParentLeft = oParent.offsetLeft;    var iParentWidth = oParent.offsetWidth;    var iParentHeight = oParent.offsetHeight;    document.onmousemove = function (event)    {      var event = event || window.event;      var iL = event.clientX - disX;      var iT = event.clientY - disY;      var maxW = document.documentElement.clientWidth - oParent.offsetLeft - 2;      var maxH = document.documentElement.clientHeight - oParent.offsetTop - 2;          var iW = isLeft ? iParentWidth - iL : handle.offsetWidth + iL;      var iH = isTop ? iParentHeight - iT : handle.offsetHeight + iT;      isLeft && (oParent.style.left = iParentLeft + iL + "px");      isTop && (oParent.style.top = iParentTop + iT + "px");      iW < dragMinWidth && (iW = dragMinWidth);      iW > maxW && (iW = maxW);      lockX || (oParent.style.width = iW + "px");      iH < dragMinHeight && (iH = dragMinHeight);      iH > maxH && (iH = maxH);      lockY || (oParent.style.height = iH + "px");      if((isLeft && iW == dragMinWidth) || (isTop && iH == dragMinHeight)) document.onmousemove = null;      return false;      };    document.onmouseup = function ()    {      document.onmousemove = null;      document.onmouseup = null;    };    return false;  }};window.onload = window.onresize = function (){  var oDrag = document.getElementById("drag");  var oTitle = get.byClass("title", oDrag)[0];  var oL = get.byClass("resizeL", oDrag)[0];  var oT = get.byClass("resizeT", oDrag)[0];  var oR = get.byClass("resizeR", oDrag)[0];  var oB = get.byClass("resizeB", oDrag)[0];  var oLT = get.byClass("resizeLT", oDrag)[0];  var oTR = get.byClass("resizeTR", oDrag)[0];  var oBR = get.byClass("resizeBR", oDrag)[0];  var oLB = get.byClass("resizeLB", oDrag)[0];  drag(oDrag, oTitle);  //四角  resize(oDrag, oLT, true, true, false, false);  resize(oDrag, oTR, false, true, false, false);  resize(oDrag, oBR, false, false, false, false);  resize(oDrag, oLB, true, false, false, false);  //四边  resize(oDrag, oL, true, false, false, true);  resize(oDrag, oT, false, true, true, false);  resize(oDrag, oR, false, false, false, true);  resize(oDrag, oB, false, false, true, false);  oDrag.style.left = (document.documentElement.clientWidth - oDrag.offsetWidth) / 2 + "px";  oDrag.style.top = (document.documentElement.clientHeight - oDrag.offsetHeight) / 2 + "px";}</script></head><body><div id="drag"> <div class="title">  <h2>这是一个可以拖动的窗口</h2>  <div>   <a class="min" href="javascript:;" title="最小化"></a>   <a class="max" href="javascript:;" title="最大化"></a>   <a class="revert" href="javascript:;" title="还原"></a>   <a class="close" href="javascript:;" title="关闭"></a>  </div> </div> <div class="resizeL" style="background: red;"></div> <div class="resizeT"></div> <div class="resizeR"></div> <div class="resizeB"></div> <div class="resizeLT"></div> <div class="resizeTR"></div> <div class="resizeBR"></div> <div class="resizeLB"></div> <div class="content">  ① 窗口可以拖动;<br />  ② 窗口可以通过八个方向改变大小;<br />  ③ 窗口可以最小化、最大化、还原、关闭;<br />  ④ 限制窗口最小宽度/高度。 </div></div></body></html>

这里写图片描述

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