基于jQuery的简易瀑布流实现

2023-07-26 21:29:04

<!doctype html>

<html>

<head>

    <meta charset="UTF-8">

    <title>简易瀑布流（基于多栏列表流体布局实现）</title>

    <style type="text/css">

    .WSCWaterfall{

        width: 960px;

        margin: 0 auto;

    }

    .WSCWaterfallCell{

        margin-bottom: 10px;

        padding: 5px 8px;

        line-height: 18px;

        width: 214px;

        border: 1px solid #999;

        border-radius: 4px;

        background-color: #ccc;

        overflow: hidden;

    }

    .WSCWaterfallColumn{

        display: inline-block;

        vertical-align: top;

    }

    .template_div{

        display: none;

    }

    </style>

</head>

<body>

    <div class="WSCWaterfall">

    </div>

    <div class="template_div">

        <div class="WSCWaterfallColumn"></div>

        <div class="WSCWaterfallCell"></div>

    </div>

<script type="text/javascript" src="jquery-2.1.0.min.js"></script>

<script type="text/javascript">

function WSCWaterFall(arg_obj){

    var data_arr = arg_obj["data_arr"] || [];

    var columnNum = arg_obj["columnNum"] || 4;

    var $WSCWaterfallCell_template = arg_obj["WSCWaterfallCell_template"] || $('.template_div').find(".WSCWaterfallCell");

    var $WSCWaterfallColumn_template = arg_obj["WSCWaterfallColumn_template"] || $('.template_div').find(".WSCWaterfallColumn");

    var $WSCWaterfall =arg_obj["WSCWaterfall_outer"] || $(".WSCWaterfall");

    var waterFallCell = arg_obj["waterFallCell_fn"] ;

    var columnArr = [];

    var cellArr = [];

    // 生成列数组

    for(var j=0; j<columnNum; j++){

        var $WSCWaterfallColumn = $WSCWaterfallColumn_template.clone(true);

        columnArr.push($WSCWaterfallColumn);

    }

    // 生成瀑布流单元，用户可自定义

    waterFallCell(data_arr, $WSCWaterfallCell_template, cellArr);

    // 列数组和单元数组筛选配对

    for(var k = 0; k < cellArr.length; k++){

        var $WSCWaterfallCell = cellArr[k];

        var index = (k % columnNum);

        try{

            columnArr[index].append($WSCWaterfallCell);

        }

        catch(e){

            console.log(e);

            console.log(index);

        }

    }

    // 渲染html页面

    for(var i=0; i< columnArr.length; i++){

        // 可优化的地方，一次append进去，而不是循环append

        $WSCWaterfall.append(columnArr[i]);

    }

}

// 初始化测试数据

var data_arr = [];

for(var i=0; i<50; i++){

    data_arr.push(i);

}

// data_arr是数据源

// columnNum 是列数

// WSCWaterfallCell_template 是 瀑布流单元格的模板jQuery引用

// WSCWaterfallColumn_template 是 瀑布流列的模板jQuery引用

// WSCWaterfall_outer 是 包裹瀑布流的jQuery引用

// waterFallCell_fn 是 渲染瀑布流单元格的方法,其中第三个参数cellArr是指单元格的jQuery引用数组,它根据data_arr和WSCWaterfallCell_template计算出来

WSCWaterFall({

    "data_arr":data_arr,

    "columnNum":4,

    "WSCWaterfallCell_template" : $('.template_div').find(".WSCWaterfallCell"),

    "WSCWaterfallColumn_template" :$('.template_div').find(".WSCWaterfallColumn"),

    "WSCWaterfall_outer" : $(".WSCWaterfall"),

    "waterFallCell_fn" : function(data_arr, $WSCWaterfallCell_template, cellArr){

        for (var i = 0; i < data_arr.length; i++) {

            var $WSCWaterfallCell = $WSCWaterfallCell_template.clone(true);

            $WSCWaterfallCell.append(i);

            cellArr.push($WSCWaterfallCell);

        }

    }

});

</script>

</body>

</html>

封装成jQuery插件如下

<!doctype html>

<html>

<head>

    <meta charset="UTF-8">

    <title>封装成jQuery插件，简易瀑布流（基于多栏列表流体布局实现）</title>

    <style type="text/css">

    .WSCWaterfall{

        width: 960px;

        margin: 0 auto;

    }

    .WSCWaterfallCell{

        margin-bottom: 10px;

        padding: 5px 8px;

        line-height: 18px;

        width: 214px;

        border: 1px solid #999;

        border-radius: 4px;

        background-color: #ccc;

        overflow: hidden;

    }

    .WSCWaterfallColumn{

        display: inline-block;

        vertical-align: top;

    }

    .template_div{

        display: none;

    }

    </style>

</head>

<body>

    <div class="WSCWaterfall">

    </div>

    <div class="WSCWaterfall">

    </div>

    <div class="template_div">

        <div class="WSCWaterfallColumn"></div>

        <div class="WSCWaterfallCell"></div>

    </div>

<script type="text/javascript" src="jquery-2.1.0.min.js"></script>

<script type="text/javascript">

// data_arr是数据源

// columnNum 是列数

// WSCWaterfallCell_template 是 瀑布流单元格的模板jQuery引用

// WSCWaterfallColumn_template 是 瀑布流列的模板jQuery引用

// WSCWaterfall_outer 是 包裹瀑布流的jQuery引用

// waterFallCell_fn 是 渲染瀑布流单元格的方法,其中第三个参数cellArr是指单元格的jQuery引用数组,它根据data_arr和WSCWaterfallCell_template计算出来

/*

WSCWaterFall({

    "data_arr":data_arr,

    "columnNum":4,

    "WSCWaterfallCell_template" : $('.template_div').find(".WSCWaterfallCell"),

    "WSCWaterfallColumn_template" :$('.template_div').find(".WSCWaterfallColumn"),

    "WSCWaterfall_outer" : $(".WSCWaterfall"),

    "waterFallCell_fn" : function(data_arr, $WSCWaterfallCell_template, cellArr){

        for (var i = 0; i < data_arr.length; i++) {

            var $WSCWaterfallCell = $WSCWaterfallCell_template.clone(true);

            $WSCWaterfallCell.append(i);

            cellArr.push($WSCWaterfallCell);

        }

    }

});

*/

// 初始化测试数据

var data_arr = [];

for(var i=0; i<50; i++){

    data_arr.push(i);

}

(function($){

    $.extend($.fn, {

        "WSCWaterFall": function(options){

            var options = $.extend({

                "data_arr":[],

                "columnNum": 4

            }, options);

            return this.each(function(index,element){

                options["WSCWaterfall_outer"] = $(element);

                WSCWaterFall(options);

            });

        }

    });

    function WSCWaterFall(arg_obj){

        var data_arr = arg_obj["data_arr"] ;

        var columnNum = arg_obj["columnNum"];

        var $WSCWaterfallCell_template = arg_obj["WSCWaterfallCell_template"] ;

        var $WSCWaterfallColumn_template = arg_obj["WSCWaterfallColumn_template"] ;

        var $WSCWaterfall =arg_obj["WSCWaterfall_outer"] ;

        // var $WSCWaterfall = $(this);

        var waterFallCell = arg_obj["waterFallCell_fn"] ;

        var columnArr = [];

        var cellArr = [];

        // 生成列数组

        for(var j=0; j<columnNum; j++){

            var $WSCWaterfallColumn = $WSCWaterfallColumn_template.clone(true);

            columnArr.push($WSCWaterfallColumn);

        }

        // 生成瀑布流单元，用户可自定义

        waterFallCell(data_arr, $WSCWaterfallCell_template, cellArr);

        // 列数组和单元数组筛选配对

        for(var k = 0; k < cellArr.length; k++){

            var $WSCWaterfallCell = cellArr[k];

            var index = (k % columnNum);

            try{

                columnArr[index].append($WSCWaterfallCell);

            }

            catch(e){

                console.log(e);

                console.log(index);

            }

        }

        // 渲染html页面

        for(var i=0; i< columnArr.length; i++){

            // 可优化的地方，一次append进去，而不是循环append

            $WSCWaterfall.append(columnArr[i]);

        }

    }

})(jQuery);

$(".WSCWaterfall").WSCWaterFall({

    "data_arr":data_arr,

    "columnNum": 3,

    "WSCWaterfallCell_template" : $('.template_div').find(".WSCWaterfallCell"),

    "WSCWaterfallColumn_template" :$('.template_div').find(".WSCWaterfallColumn"),

    "waterFallCell_fn" : function(data_arr, $WSCWaterfallCell_template, cellArr){

        for (var i = 0; i < data_arr.length; i++) {

            var $WSCWaterfallCell = $WSCWaterfallCell_template.clone(true);

            $WSCWaterfallCell.append(i);

            cellArr.push($WSCWaterfallCell);

        }

    }

});

</script>

</body>

</html>

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