Edit D:\rfid\libsystem\third-party\jquery-easyui-1.5.3\src\jquery.combobox.js

/**
 * EasyUI for jQuery 1.5.3
 * 
 * Copyright (c) 2009-2017 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
 *
 */
/**
 * combobox - EasyUI for jQuery
 * 
 * Dependencies:
 *   combo
 * 
 */
(function($){
	function getRowIndex(target, value){
		var state = $.data(target, 'combobox');
		return $.easyui.indexOfArray(state.data, state.options.valueField, value);
	}
	
	/**
	 * scroll panel to display the specified item
	 */
	function scrollTo(target, value){
		var opts = $.data(target, 'combobox').options;
		var panel = $(target).combo('panel');
		var item = opts.finder.getEl(target, value);
		if (item.length){
			if (item.position().top <= 0){
				var h = panel.scrollTop() + item.position().top;
				panel.scrollTop(h);
			} else if (item.position().top + item.outerHeight() > panel.height()){
				var h = panel.scrollTop() + item.position().top + item.outerHeight() - panel.height();
				panel.scrollTop(h);
			}
		}
		panel.triggerHandler('scroll');	// trigger the group sticking
	}
	
	function nav(target, dir){
		var opts = $.data(target, 'combobox').options;
		var panel = $(target).combobox('panel');
		var item = panel.children('div.combobox-item-hover');
		if (!item.length){
			item = panel.children('div.combobox-item-selected');
		}
		item.removeClass('combobox-item-hover');
		var firstSelector = 'div.combobox-item:visible:not(.combobox-item-disabled):first';
		var lastSelector = 'div.combobox-item:visible:not(.combobox-item-disabled):last';
		if (!item.length){
			item = panel.children(dir=='next' ? firstSelector : lastSelector);
		} else {
			if (dir == 'next'){
				item = item.nextAll(firstSelector);
				if (!item.length){
					item = panel.children(firstSelector);
				}
			} else {
				item = item.prevAll(firstSelector);
				if (!item.length){
					item = panel.children(lastSelector);
				}
			}
		}
		if (item.length){
			item.addClass('combobox-item-hover');
			var row = opts.finder.getRow(target, item);
			if (row){
				$(target).combobox('scrollTo', row[opts.valueField]);
				if (opts.selectOnNavigation){
					select(target, row[opts.valueField]);
				}
			}
		}
	}
	
	/**
	 * select the specified value
	 */
	function select(target, value, remainText){
		var opts = $.data(target, 'combobox').options;
		var values = $(target).combo('getValues');
		if ($.inArray(value+'', values) == -1){
			if (opts.multiple){
				values.push(value);
			} else {
				values = [value];
			}
			setValues(target, values, remainText);
		}
	}
	
	/**
	 * unselect the specified value
	 */
	function unselect(target, value){
		var opts = $.data(target, 'combobox').options;
		var values = $(target).combo('getValues');
		var index = $.inArray(value+'', values);
		if (index >= 0){
			values.splice(index, 1);
			setValues(target, values);
		}
	}
	
	/**
	 * set values
	 */
	function setValues(target, values, remainText){
		var opts = $.data(target, 'combobox').options;
		var panel = $(target).combo('panel');
		
		if (!$.isArray(values)){
			values = values.split(opts.separator);
		}
		if (!opts.multiple){
			values = values.length ? [values[0]] : [''];
		}

// unselect the old rows
		var oldValues = $(target).combo('getValues');
		if (panel.is(':visible')){
			panel.find('.combobox-item-selected').each(function(){
				var row = opts.finder.getRow(target, $(this));
				if (row){
					if ($.easyui.indexOfArray(oldValues, row[opts.valueField]) == -1){
						$(this).removeClass('combobox-item-selected');
					}
				}
			});
		}
		$.map(oldValues, function(v){
			if ($.easyui.indexOfArray(values, v) == -1){
				var el = opts.finder.getEl(target, v);
				if (el.hasClass('combobox-item-selected')){
					el.removeClass('combobox-item-selected');
					opts.onUnselect.call(target, opts.finder.getRow(target, v));
				}
			}
		});

if (!remainText){
			$(target).combo('setText', ss.join(opts.separator));
		}
		if (opts.showItemIcon){
			var tb = $(target).combobox('textbox');
			tb.removeClass('textbox-bgicon ' + opts.textboxIconCls);
			if (theRow && theRow.iconCls){
				tb.addClass('textbox-bgicon ' + theRow.iconCls);
				opts.textboxIconCls = theRow.iconCls;
			}
		}
		$(target).combo('setValues', vv);
		panel.triggerHandler('scroll');	// trigger the group sticking
	}
	
	/**
	 * load data, the old list items will be removed.
	 */
	function loadData(target, data, remainText){
		var state = $.data(target, 'combobox');
		var opts = state.options;
		state.data = opts.loadFilter.call(target, data);

opts.view.render.call(opts.view, target, $(target).combo('panel'), state.data);

opts.loader.call(target, param, function(data){
			loadData(target, data, remainText);
		}, function(){
			opts.onLoadError.apply(this, arguments);
		});
	}
	
	/**
	 * do the query action
	 */
	function doQuery(target, q){
		var state = $.data(target, 'combobox');
		var opts = state.options;

var p = $(target).combo('panel');
		p.unbind('.combobox');
		for(var event in opts.panelEvents){
			p.bind(event+'.combobox', {target:target}, opts.panelEvents[event]);
		}
	}

var COMBOBOX_SERNO = 0;
	var defaultView = {
		render: function(target, container, data){
			var state = $.data(target, 'combobox');
			var opts = state.options;

COMBOBOX_SERNO++;
			state.itemIdPrefix = '_easyui_combobox_i' + COMBOBOX_SERNO;
			state.groupIdPrefix = '_easyui_combobox_g' + COMBOBOX_SERNO;		
			state.groups = [];
			
			var dd = [];
			var group = undefined;
			for(var i=0; i<data.length; i++){
				var row = data[i];
				var v = row[opts.valueField]+'';
				var s = row[opts.textField];
				var g = row[opts.groupField];
				
				if (g){
					if (group != g){
						group = g;
						state.groups.push({
							value: g,
							startIndex: i,
							count: 1
						});
						dd.push('<div id="' + (state.groupIdPrefix+'_'+(state.groups.length-1)) + '" class="combobox-group">');
						dd.push(opts.groupFormatter ? opts.groupFormatter.call(target, g) : g);
						dd.push('</div>');
					} else {
						state.groups[state.groups.length-1].count++;
					}
				} else {
					group = undefined;
				}
				
				var cls = 'combobox-item' + (row.disabled ? ' combobox-item-disabled' : '') + (g ? ' combobox-gitem' : '');
				dd.push('<div id="' + (state.itemIdPrefix+'_'+i) + '" class="' + cls + '">');
				if (opts.showItemIcon && row.iconCls){
					dd.push('<span class="combobox-icon ' + row.iconCls + '"></span>');
				}
				dd.push(opts.formatter ? opts.formatter.call(target, row) : s);
				dd.push('</div>');
			}
			$(container).html(dd.join(''));
		}
	};
	
	$.fn.combobox.defaults = $.extend({}, $.fn.combo.defaults, {
		valueField: 'value',
		textField: 'text',
		groupPosition: 'static',	// or 'sticky'
		groupField: null,
		groupFormatter: function(group){return group;},
		mode: 'local',	// or 'remote'
		method: 'post',
		url: null,
		data: null,
		queryParams: {},
		showItemIcon: false,
		limitToList: false,	// limit the inputed values to the listed items
		view: defaultView,
		
		keyHandler: {
			up: function(e){nav(this,'prev');e.preventDefault()},
			down: function(e){nav(this,'next');e.preventDefault()},
			left: function(e){},
			right: function(e){},
			enter: function(e){doEnter(this)},
			query: function(q,e){doQuery(this, q)}
		},
		inputEvents: $.extend({}, $.fn.combo.defaults.inputEvents, {
			blur: function(e){
				var target = e.data.target;
				var opts = $(target).combobox('options');
				if (opts.reversed || opts.limitToList){
					if (opts.blurTimer){
						clearTimeout(opts.blurTimer);
					}
					opts.blurTimer = setTimeout(function(){
						var existing = $(target).parent().length;
						if (existing){
							if (opts.reversed){
								$(target).combobox('setValues', $(target).combobox('getValues'));
							} else if (opts.limitToList){
								//doEnter(target);
								var vv = [];
								$.map($(target).combobox('getValues'), function(v){
									var index = $.easyui.indexOfArray($(target).combobox('getData'), opts.valueField, v);
									if (index >= 0){
										vv.push(v);
									}
								});
								$(target).combobox('setValues', vv);
							}
							opts.blurTimer = null;
						}
					},50);
				}
			}
		}),
		panelEvents: {
			mouseover: mouseoverHandler,
			mouseout: mouseoutHandler,
			click: clickHandler,
			scroll: scrollHandler
		},
		filter: function(q, row){
			var opts = $(this).combobox('options');
			return row[opts.textField].toLowerCase().indexOf(q.toLowerCase()) >= 0;
		},
		formatter: function(row){
			var opts = $(this).combobox('options');
			return row[opts.textField];
		},
		loader: function(param, success, error){
			var opts = $(this).combobox('options');
			if (!opts.url) return false;
			$.ajax({
				type: opts.method,
				url: opts.url,
				data: param,
				dataType: 'json',
				success: function(data){
					success(data);
				},
				error: function(){
					error.apply(this, arguments);
				}
			});
		},
		loadFilter: function(data){
			return data;
		},
		finder:{
			getEl:function(target, value){
				var index = getRowIndex(target, value);
				var id = $.data(target, 'combobox').itemIdPrefix + '_' + index;
				return $('#'+id);
			},
			getGroupEl:function(target, gvalue){
				var state = $.data(target, 'combobox');
				var index = $.easyui.indexOfArray(state.groups, 'value', gvalue);
				var id = state.groupIdPrefix + '_' + index;
				return $('#'+id);
			},
			getGroup:function(target, p){
				var state = $.data(target, 'combobox');
				var index = p.attr('id').substr(state.groupIdPrefix.length+1);
				return state.groups[parseInt(index)];
			},
			getRow:function(target, p){
				var state = $.data(target, 'combobox');
				var index = (p instanceof $) ? p.attr('id').substr(state.itemIdPrefix.length+1) : getRowIndex(target, p);
				return state.data[parseInt(index)];
			}
		},
		
		onBeforeLoad: function(param){},
		onLoadSuccess: function(data){},
		onLoadError: function(){},
		onSelect: function(record){},
		onUnselect: function(record){},
		onClick: function(record){}
	});
})(jQuery);

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