WebUI/AchieveManageWeb/Scripts/jquery-easyui-1.4.4/src/jquery.droppable.js

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/**
 * jQuery EasyUI 1.4.4
 *
 * Copyright (c) 2009-2015 www.jeasyui.com. All rights reserved.
 *
 * Licensed under the freeware license: http://www.jeasyui.com/license_freeware.php
 * To use it on other terms please contact us: info@jeasyui.com
 *
 */
/**
 * droppable - jQuery EasyUI
 *
 */
(function ($) {
    function init(target) {
        $(target).addClass('droppable');
        $(target).bind('_dragenter', function (e, source) {
            $.data(target, 'droppable').options.onDragEnter.apply(target, [e, source]);
        });
        $(target).bind('_dragleave', function (e, source) {
            $.data(target, 'droppable').options.onDragLeave.apply(target, [e, source]);
        });
        $(target).bind('_dragover', function (e, source) {
            $.data(target, 'droppable').options.onDragOver.apply(target, [e, source]);
        });
        $(target).bind('_drop', function (e, source) {
            $.data(target, 'droppable').options.onDrop.apply(target, [e, source]);
        });
    }

    $.fn.droppable = function (options, param) {
        if (typeof options == 'string') {
            return $.fn.droppable.methods[options](this, param);
        }

        options = options || {};
        return this.each(function () {
            var state = $.data(this, 'droppable');
            if (state) {
                $.extend(state.options, options);
            } else {
                init(this);
                $.data(this, 'droppable', {
                    options: $.extend({}, $.fn.droppable.defaults, $.fn.droppable.parseOptions(this), options)
                });
            }
        });
    };

    $.fn.droppable.methods = {
        options: function (jq) {
            return $.data(jq[0], 'droppable').options;
        },
        enable: function (jq) {
            return jq.each(function () {
                $(this).droppable({ disabled: false });
            });
        },
        disable: function (jq) {
            return jq.each(function () {