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);
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;width: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;width: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>
插件效果
