jquery自适应布局的简单实例

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代码整理 - uix.layout.js

/**
* Grace [jQuery.js]
*
* UIX页面布局
* 290353142@qq.com

* exp: 
* $.uix.layout();//执行布局
* class="uix-layout-container";//标识布局容器
* class="uix_box";//用于调整 布局时将此元素高度铺满父容器(支持设置padding\margin\border)
* 例：

html1:div中
<div class="uix-layout-container">
  <div class="uix-layout-north"></div>
  <div class="uix-layout-north"></div>
  <div class="uix-layout-west"></div>
  <div class="uix-layout-east"></div>
  <div class="uix-layout-center"></div>
  <div class="uix-layout-south"></div>
</div>
html2:body中
<body class="uix-layout-container">
  <div class="uix-layout-north"></div>
  <div class="uix-layout-north"></div>
  <div class="uix-layout-west"></div>
  <div class="uix-layout-east"></div>
  <div class="uix-layout-center"></div>
  <div class="uix-layout-south"></div>
</body>
html3:嵌套
<body class="uix-layout-container">
  <div class="uix-layout-north"></div>
  <div class="uix-layout-north"></div>
  <div class="uix-layout-west"></div>
  <div class="uix-layout-east"></div>
  <div class="uix-layout-center uix-layout-container">
    <div class="uix-layout-north"></div>
    <div class="uix-layout-center"></div>
  </div>
  <div class="uix-layout-south"></div>
</body>

js:
页面结构动态修改后调用 $.uix.layout()即可,若无动态修改则无需做操作

*
*/
(function (undefined) {
  //配置
  var config = {
    useUixLayout: true, //启用
    isDebugger: true, //是否开启日志输出
    version: "V201508171400", //版本
    filename: "uix.layout.js", //脚本名称
    timeout: 500 //布局间隔
  };

  //日志输出
  var log = function () { }
  if (typeof console != "undefined" && console.log) {
    log = function (context, checklog) {
      if (typeof checklog != "undefined" || config.isDebugger)
        console.log("%c" + "[uix.layout]", "color:green;", context);
    }
  }

  //加载日志
  log("加载中", true);
  if (!config.useUixLayout) { log("已停止加载[uix.layout 未启用]", true); return; }
  if (typeof $ == "undefined") { log("已停止加载[需要jQuery支持]", true); return; }
  if (typeof $.uix != "undefined") { log("已停止加载[已加载过]", true); return; }
  log("日志状态[" + (config.isDebugger "启用" : "禁用") + "]", true);


  var tool = {
    selecter: ".uix_box", //uix_box高宽自适应
    setAutoBox: function (inputSelecter) {
      var sel = inputSelecter || tool.selecter;
      $(sel).each(function () {
        var o = $(this);
        var p = o.parent();
        var s = tool.getEleSize(o);
        o.height(p.height() - s.otherHeight - tool.getCV(o, ["marginTop", "marginBottom"]));
        o.width(p.width() - s.otherWidth - tool.getCV(o, ["marginLeft", "marginRight"]));
      })
    },
    getCV: function (ele, cn) {
      var s = 0;
      if (typeof cn == "string") cn = [cn];
      $(cn).each(function (i, o) {
        var v;
        s += isNaN(v = parseInt(ele.css(o))) "开始布局[" + window.__uixlayoutstate + "]");
        var pares = $(".uix-layout-container");
        pares.each(function (obj, i) {
          $.uix.initLayout($(this));
        });
        $.uix.setGrid($(".uix_grid")); //自适应表格
        tool.log("布局完毕[" + window.__uixlayoutstate + "]");
        window.__uixlayoutstate = false;
      }

      //如果已经有了一个待执行的操作，则取消之
      if (typeof window.__uixlayoutstate == "number") {
        tool.log("取消布局[" + window.__uixlayoutstate + "]");
        window.clearTimeout(window.__uixlayoutstate);
      }

      //添加一个新操作在待执行序列中
      window.__uixlayoutstate = setTimeout(timeout, config.timeout);
      tool.log("等待布局[" + window.__uixlayoutstate + "] 等待" + config.timeout + "ms");
      return;
    },
    initLayout: function (pare) {
      var parent;
      if (pare[0].tagName.toUpperCase() == "BODY") {
        parent = { height: $(window).height(), width: $(window).width() };
        var marginHeight = tool.getCV($(pare), ["marginTop", "marginBottom"]);
        parent.height -= marginHeight;
      }
      else {
        parent = { height: $(pare[0]).height(), width: $(pare[0]).width() };
        var marginHeight = tool.getCV($(pare), ["marginTop", "marginBottom"]);
        parent.height -= marginHeight;
      }

      parent.element = pare;

      if (pare[0].tagName.toUpperCase() == "BODY") {
        pare.height(parent.height);
      }


      var eles = {
        north: pare.children(".uix-layout-north:visible"),
        south: pare.children(".uix-layout-south:visible"),
        east: pare.children(".uix-layout-east:visible"),
        west: pare.children(".uix-layout-west:visible"),
        center: pare.children(".uix-layout-center:visible")
      }
      var s = {
        parent: parent,
        norths: tool.getEleSize(eles.north),
        souths: tool.getEleSize(eles.south),
        centers: tool.getEleSize(eles.center),
        easts: tool.getEleSize(eles.east),
        wests: tool.getEleSize(eles.west)
      }
      //debugger;
      s.centers.outerHeight = s.parent.height - s.norths.outerHeight - s.souths.outerHeight;
      s.centers.height = s.centers.outerHeight - s.centers.otherHeight;
      s.centers.outerWidth = s.parent.width - s.wests.outerWidth - s.easts.outerWidth;
      s.centers.width = s.centers.outerWidth - s.centers.otherWidth;

      tool.log(s);

      var autoHeight = parent.height - s.norths.outerHeight - s.souths.outerHeight;
      var autoWidth = parent.width - s.wests.outerWidth - s.easts.outerWidth;

      var cheight = s.centers.height;
      var cwidth = s.centers.width;
      eles.north.css({ margin: "0px" });
      eles.south.css({ margin: "0px" });

      var left = 0; //, parentBordr.left
      var top = s.norths.outerHeight; //parentBordr.top; + ;


      //考虑加入前置函数
      //在改变布局前先改变子元素


      for (var i = 0; i < s.wests.children.length; i++) {
        var item = s.wests.children[i];
        var westheight = autoHeight - item.otherHeight;
        item.ele.css({ position: "absolute", left: left + "px", right: "auto", top: top + "px", bottom: "auto", height: westheight + "px", display: "block", margin: "0px" });
        left += item.outerWidth;
      }

      var right = 0; // parentBordr.right;
      for (var i = 0; i < s.easts.children.length; i++) {
        var item = s.easts.children[i];
        var eastheight = autoHeight - item.otherHeight;
        item.ele.css({ position: "absolute", right: right + "px", left: "auto", top: top + "px", bottom: "auto", height: eastheight + "px", display: "block", margin: "0px" });
        right += item.outerWidth;
      }

      eles.center.css({ height: cheight, "marginLeft": s.wests.outerWidth, "marginRight": s.easts.outerWidth });
      tool.log("整体布局完成");

      tool.log("开始检测回调函数 提示：可设置window.uixAfterResize值[false:禁用回调|function:自定义回调|undefined(默认):自动检测]");
      this.resizecontral(s);
      tool.log("回调函数处理完毕");

      $.uix.tool.setAutoBox(); //uix_box 高宽自适应
    },

    resizecontral: function (sizes) {
      //调整布局内常用版式
      //检查用户设置的 uixAfterResize 变量，
      // boolean fale：不进行排盘，
      // function 调用自定义函数，
      // undefined 自动检测所属版式
      if (typeof window.uixAfterResize == "boolean" && window.uixAfterResize == false) {
        tool.log("禁用自动解析回调[window.uixAfterResize==false]");
        return;
      }

      if (typeof window.uixAfterResize == "function") {
        tool.log("调用自定义回调函数[window.uixAfterResize=function]");
        window.uixAfterResize(sizes);
        return;
      }
      if (typeof window.uixAfterResize == "undefined") {
        tool.log("使用自动解析回调[window.uixAfterResize=undefined]");
        var n = sizes.norths.children.length;
        var w = sizes.wests.children.length;
        var e = sizes.easts.children.length;
        var c = sizes.centers.children.length;
        var s = sizes.souths.children.length;
        tool.log("解析页面结构"
        + " north[" + n + "] "
        + " west[" + w + "] "
        + " east[" + e + "] "
        + " south[" + s + "] "
        + " center[" + c + "]");

        //判断界面结构,选择合适的回调方法,
        if (w == 0 && e == 0 && c == 1) {
          $.uix.afterResize1(sizes);
        }
        if (w == 1 && e == 0 && c == 1) {
          $.uix.afterResize2(sizes);
        }
        return;
      }
    },

    initpage: function () {
      log("等待页面加载完成后初始化", true);
      $(window.document.body).ready(function () {
        if ($(".uix-layout-container").length == 0) { log("已停止加载[未发现.uix-layout-container]", true); return; }
        $.uix.tool.log("触发布局[window onload]");
        $.uix.layout();
        $(window).bind("resize", function () {
          $.uix.tool.log("触发布局[window onresize]");
          $.uix.layout();
        });
        $(".uix-layout-north,.uix-layout-south,.uix-layout-east,.uix-layout-west").bind("resize", function () {
          $.uix.tool.log("触发布局[uix-layout-" + $(this).attr("class") + " onresize]");
          $.uix.layout();
        });
        log("初始化完毕", true);
      });
    },

    afterResize1: function (size) {
      //特定结构回调1
    },
    afterResize2: function (size) {
      //特定结构回调2
    }
  };
  $.extend({ uix: uixlayout });
  log("加载完毕", true);
  $.uix.initpage();
})();

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