easyui源码翻译1.32--Droppable（放置）

前言

使用$.fn.droppable.defaults重写默认值对象。下载该插件翻译源码

源码

/**
 * jQuery EasyUI 1.3.2
 * 
 *翻译：lbq --放置 拉伸
 */
(function ($) {
    //初始化
    function init(jq) {
        $(jq).addClass("droppable");
        $(jq).bind("_dragenter", function (e, source) {
            $.data(jq, "droppable").options.onDragEnter.apply(jq, [e, source]);
        });
        $(jq).bind("_dragleave", function (e, source) {
            $.data(jq, "droppable").options.onDragLeave.apply(jq, [e, source]);
        });
        $(jq).bind("_dragover", function (e, source) {
            $.data(jq, "droppable").options.onDragOver.apply(jq, [e, source]);
        });
        $(jq).bind("_drop", function (e, source) {
            $.data(jq, "droppable").options.onDrop.apply(jq, [e, source]);
        });
    };
    //实例化插件
    $.fn.droppable = function (options, parm) {
        if (typeof options == "string") {
            return $.fn.droppable.methods[options](this, parm);
        }
        options = options || {};
        return this.each(function () {
            var parm = $.data(this, "droppable");
            if (parm) {
                $.extend(parm.options, options);
            } else {
                init(this);
                $.data(this, "droppable", { options: $.extend({}, $.fn.droppable.defaults, $.fn.droppable.parseOptions(this), options) });
            }
        });
    };
    //默认方法
    $.fn.droppable.methods = {
        //返回属性对象
        options: function (jq) {
            return $.data(jq[0], "droppable").options;
        },
        //启用放置功能
        enable: function (jq) {
            return jq.each(function () {
                $(this).droppable({ disabled: false });
            });
        },
        //禁用放置功能
        disable: function (jq) {
            return jq.each(function () {
                $(this).droppable({ disabled: true });
            });
        }
    };
    //属性转换器
    $.fn.droppable.parseOptions = function (target) {
        var t = $(target);
        return $.extend({}, $.parser.parseOptions(target, ["accept"]), { disabled: (t.attr("disabled") ? true : undefined) });
    };
    //默认属性、事件
    $.fn.droppable.defaults = {
        accept: null,//确定哪些可拖拽元素将被接受
        disabled: false,//如果为true，则禁止放置
        //在被拖拽元素到放置区内的时候触发，source参数表示被拖拽的DOM元素
        onDragEnter: function (e, source) {
        },
        //在被拖拽元素经过放置区的时候触发，source参数表示被拖拽的DOM元素
        onDragOver: function (e, _c) {
        },
        //在被拖拽元素离开放置区的时候触发，source参数表示被拖拽的DOM元素
        onDragLeave: function (e, _d) {
        },
        //在被拖拽元素放入到放置区的时候触发，source参数表示被拖拽的DOM元素
        onDrop: function (e, _e) {
        }
    };
})(jQuery);

View Code

示例代码

<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>Basic Droppable - jQuery EasyUI Demo</title>
    <link rel="stylesheet" type="text/css" href="../../themes/default/easyui.css">
    <link rel="stylesheet" type="text/css" href="../../themes/icon.css">
    <link rel="stylesheet" type="text/css" href="../demo.css">
    <script type="text/javascript" src="../../jquery-1.8.0.min.js"></script>
    <script src="../../plugins2/jquery.parser.js"></script>
    <script src="../../plugins2/jquery.draggable.js"></script>
    <script src="../../plugins2/jquery.droppable.js"></script>
</head>
<body>
    <h2>Basic Droppable</h2>
    <div class="demo-info">
        <div class="demo-tip icon-tip"></div>
        <div>Drag the boxed on left to the target area on right.</div>
    </div>
    <div style="margin:10px 0;"></div>
    <div style="float:left;200px;margin-right:20px;">
        <div class="title">Source</div>
        <div>
            <div class="dragitem">Apple</div>
            <div class="dragitem">Peach</div>
            <div class="dragitem">Orange</div>
        </div>
    </div>
    <div style="float:left;200px;">
        <div class="title">Target</div>
        <div class="easyui-droppable targetarea"
                data-options="
                    accept: '.dragitem',
                    onDragEnter:function(e,source){
                        $(this).html('enter');
                    },
                    onDragLeave: function(e,source){
                        $(this).html('leave');
                    },
                    onDrop: function(e,source){
                        $(this).html($(source).html() + ' dropped');
                    }
                ">
        </div>
    </div>
    <div style="clear:both"></div>
    <style type="text/css">
        .title{
            margin-bottom:10px;
        }
        .dragitem{
            border:1px solid #ccc;
            width:50px;
            height:50px;
            margin-bottom:10px;
        }
        .targetarea{
            border:1px solid red;
            height:150px;
        }
        .proxy{
            border:1px solid #ccc;
            width:80px;
            background:#fafafa;
        }
    </style>
    <script>
        $(function(){
            $('.dragitem').draggable({
                revert:true,
                deltaX:10,
                deltaY:10,
                proxy:function(source){
                    var n = $('<div class="proxy"></div>');
                    n.html($(source).html()).appendTo('body');
                    return n;
                }
            });
        });
    </script>
</body>
</html>

View Code

插件效果

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