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2012-08-12 22:18 946 查看

1. jquery.autocomplete.js [ 有改动 ]

/*
 * jQuery Autocomplete plugin 1.1
 *
 * Copyright (c) 2009 Jörn Zaefferer
 *
 * Dual licensed under the MIT and GPL licenses:
 *   http://www.opensource.org/licenses/mit-license.php  *   http://www.gnu.org/licenses/gpl.html  *
 * Revision: $Id: jquery.autocomplete.js 15 2009-08-22 10:30:27Z joern.zaefferer $
 */

;(function($) {
	
$.fn.extend({
	autocomplete: function(urlOrData, options) {
		var isUrl = typeof urlOrData == "string";
		options = $.extend({}, $.Autocompleter.defaults, {
			url: isUrl ? urlOrData : null,
			data: isUrl ? null : urlOrData,
			delay: isUrl ? $.Autocompleter.defaults.delay : 1,
			max: options && !options.scroll ? 10 : 150
		}, options);
		
		// if highlight is set to false, replace it with a do-nothing function
		options.highlight = options.highlight || function(value) { return value; };
		
		// if the formatMatch option is not specified, then use formatItem for backwards compatibility
		options.formatMatch = options.formatMatch || options.formatItem;
		
		return this.each(function() {
			new $.Autocompleter(this, options);
		});
	},
	result: function(handler) {
		return this.bind("result", handler);
	},
	search: function(handler) {
		return this.trigger("search", [handler]);
	},
	flushCache: function() {
		return this.trigger("flushCache");
	},
	setOptions: function(options){
		return this.trigger("setOptions", [options]);
	},
	unautocomplete: function() {
		return this.trigger("unautocomplete");
	}
});

$.Autocompleter = function(input, options) {
    //下面这段，是为在外面点击时，能正确隐藏弹出层
    var bodyObj = document.body ? document.body : document.documentElement;  
    $(bodyObj).click(function(event){  
        var target = event.target ? event.target : event.srcElement;  
        if(options.usedForSmartSelect){
            if(!$(target).hasClass("smartselect")){
                select.hide();
                if($(input).val()==""){
                    $(input).val( options.usedForSmartSelectBtn.data("txtStartValue") );
                }
            }
        }
        event.stopPropagation(); //阻止事件冒泡
        return false;
    });

	var KEY = {
		UP: 38,
		DOWN: 40,
		DEL: 46,
		TAB: 9,
		RETURN: 13,
		ESC: 27,
		COMMA: 188,
		PAGEUP: 33,
		PAGEDOWN: 34,
		BACKSPACE: 8
	};

	// Create $ object for input element
	var $input = $(input).attr("autocomplete", "off").addClass(options.inputClass);

	var timeout;
	var previousValue = "";
	var cache = $.Autocompleter.Cache(options);
	var hasFocus = 0;
	var lastKeyPressCode;
	var config = {
		mouseDownOnSelect: false
	};
	var select = $.Autocompleter.Select(options, input, selectCurrent, config);
	
	var blockSubmit;
	
	// prevent form submit in opera when selecting with return key
	$.browser.opera && $(input.form).bind("submit.autocomplete", function() {
		if (blockSubmit) {
			blockSubmit = false;
			return false;
		}
	});
	
	// only opera doesn't trigger keydown multiple times while pressed, others don't work with keypress at all
	$input.bind(($.browser.opera ? "keypress" : "keydown") + ".autocomplete", function(event) {
		// a keypress means the input has focus
		// avoids issue where input had focus before the autocomplete was applied
		hasFocus = 1;
		// track last key pressed
		lastKeyPressCode = event.keyCode;
		switch(event.keyCode) {
		
			case KEY.UP:
				event.preventDefault();
				if ( select.visible() ) {
					select.prev();
				} else {
					onChange(0, true);
				}
				break;
				
			case KEY.DOWN:
				event.preventDefault();
				if ( select.visible() ) {
					select.next();
				} else {
					onChange(0, true);
				}
				break;
				
			case KEY.PAGEUP:
				event.preventDefault();
				if ( select.visible() ) {
					select.pageUp();
				} else {
					onChange(0, true);
				}
				break;
				
			case KEY.PAGEDOWN:
				event.preventDefault();
				if ( select.visible() ) {
					select.pageDown();
				} else {
					onChange(0, true);
				}
				break;
			
			// matches also semicolon
			case options.multiple && $.trim(options.multipleSeparator) == "," && KEY.COMMA:
			case KEY.TAB:
			case KEY.RETURN:
				if( selectCurrent() ) {
					// stop default to prevent a form submit, Opera needs special handling
					event.preventDefault();
					blockSubmit = true;
					return false;
				}
				break;
				
			case KEY.ESC:
				select.hide();
				break;
				
			default:
				clearTimeout(timeout);
				timeout = setTimeout(onChange, options.delay);
				break;
		}
	}).focus(function(){
		// track whether the field has focus, we shouldn't process any
		// results if the field no longer has focus
		hasFocus++;
	}).blur(function() {
		hasFocus = 0;
		if (!config.mouseDownOnSelect) {
			hideResults();
		}
	}).click(function() {
		// show select when clicking in a focused field
		if ( (hasFocus++ > 1 && !select.visible()) || ( !select.visible() && options.usedForSmartSelect && options.usedForSmartSelectBtn.data("btnClick")=="1" ) ) {
			onChange(0, true);
		}
	}).bind("search", function() {
		// TODO why not just specifying both arguments?
		var fn = (arguments.length > 1) ? arguments[1] : null;
		function findValueCallback(q, data) {
			var result;
			if( data && data.length ) {
				for (var i=0; i < data.length; i++) {
					if( data[i].result.toLowerCase() == q.toLowerCase() ) {
						result = data[i];
						break;
					}
				}
			}
			if( typeof fn == "function" ) fn(result);
			else $input.trigger("result", result && [result.data, result.value]);
		}
		$.each(trimWords($input.val()), function(i, value) {
			request(value, findValueCallback, findValueCallback);
		});
	}).bind("flushCache", function() {
		cache.flush();
	}).bind("setOptions", function() {
		$.extend(options, arguments[1]);
		// if we've updated the data, repopulate
		if ( "data" in arguments[1] )
			cache.populate();
	}).bind("unautocomplete", function() {
		select.unbind();
		$input.unbind();
		$(input.form).unbind(".autocomplete");
	}).bind("dblclick",function(){
	    $input.select();
	});
	
	
	function selectCurrent() {
		var selected = select.selected();
		if( !selected )
			return false;
		
		var v = selected.result;
		previousValue = v;
		
		if ( options.multiple ) {
			var words = trimWords($input.val());
			if ( words.length > 1 ) {
				var seperator = options.multipleSeparator.length;
				var cursorAt = $(input).selection().start;
				var wordAt, progress = 0;
				$.each(words, function(i, word) {
					progress += word.length;
					if (cursorAt <= progress) {
						wordAt = i;
						return false;
					}
					progress += seperator;
				});
				words[wordAt] = v;
				// TODO this should set the cursor to the right position, but it gets overriden somewhere
				//$.Autocompleter.Selection(input, progress + seperator, progress + seperator);
				v = words.join( options.multipleSeparator );
			}
			v += options.multipleSeparator;
		}
		
		$input.val(v);
		hideResultsNow();
		$input.trigger("result", [selected.data, selected.value]);
		return true;
	}
	
	function onChange(crap, skipPrevCheck) {
		if( lastKeyPressCode == KEY.DEL ) {
			select.hide();
			return;
		}
		
		var currentValue = $input.val();
		
		if ( !skipPrevCheck && currentValue == previousValue )
			return;
		
		previousValue = currentValue;
		
		currentValue = lastWord(currentValue);
		if ( currentValue.length >= options.minChars) {
			$input.addClass(options.loadingClass);
			if (!options.matchCase)
				currentValue = currentValue.toLowerCase();
			request(currentValue, receiveData, hideResultsNow);
		} else {
			stopLoading();
			select.hide();
		}
	};
	
	function trimWords(value) {
		if (!value)
			return [""];
		if (!options.multiple)
			return [$.trim(value)];
		return $.map(value.split(options.multipleSeparator), function(word) {
			return $.trim(value).length ? $.trim(word) : null;
		});
	}
	
	function lastWord(value) {
		if ( !options.multiple )
			return value;
		var words = trimWords(value);
		if (words.length == 1) 
			return words[0];
		var cursorAt = $(input).selection().start;
		if (cursorAt == value.length) {
			words = trimWords(value)
		} else {
			words = trimWords(value.replace(value.substring(cursorAt), ""));
		}
		return words[words.length - 1];
	}
	
	// fills in the input box w/the first match (assumed to be the best match)
	// q: the term entered
	// sValue: the first matching result
	function autoFill(q, sValue){
		// autofill in the complete box w/the first match as long as the user hasn't entered in more data
		// if the last user key pressed was backspace, don't autofill
		if( options.autoFill && (lastWord($input.val()).toLowerCase() == q.toLowerCase()) && lastKeyPressCode != KEY.BACKSPACE ) {
			// fill in the value (keep the case the user has typed)
			$input.val($input.val() + sValue.substring(lastWord(previousValue).length));
			// select the portion of the value not typed by the user (so the next character will erase)
			$(input).selection(previousValue.length, previousValue.length + sValue.length);
		}
	};

	function hideResults() {
		clearTimeout(timeout);
		timeout = setTimeout(hideResultsNow, 200);
	};

	function hideResultsNow() {
		var wasVisible = select.visible();
		select.hide();
		clearTimeout(timeout);
		stopLoading();
		if (options.mustMatch) {
			// call search and run callback
			$input.search(
				function (result){
					// if no value found, clear the input box
					if( !result ) {
						if (options.multiple) {
							var words = trimWords($input.val()).slice(0, -1);
							$input.val( words.join(options.multipleSeparator) + (words.length ? options.multipleSeparator : "") );
						}
						else {
							$input.val( "" );
							$input.trigger("result", null);
						}
					}
				}
			);
		}
		//专用于 smartselect 的部分. yenange
		if(options.usedForSmartSelect && options.usedForSmartSelectBtn!=null && options.usedForSmartSelectBtn.data("btnClick")=="1" ){
		    if( options.usedForSmartSelectBtn.data("activeElementIsTxt")=="1" ){
//		        options.usedForSmartSelectBtn.data("activeElementIsTxt","-1");
//		    }else if( options.usedForSmartSelectBtn.data("activeElementIsTxt")=="-1" ){
		        options.usedForSmartSelectBtn.data("activeElementIsTxt","0");
		    }else{
		        options.usedForSmartSelectBtn.data("btnClick","0");
		        var txtStartValue = options.usedForSmartSelectBtn.data("txtStartValue");
		        var txtEndValue = $input.val();
    		    
		        if(txtStartValue!="" && txtEndValue==""){
		            $input.val(txtStartValue);
		            options.usedForSmartSelectSel.val( options.usedForSmartSelectBtn.data("selStartValue") );
		        }
		    }
		}
	};

	function receiveData(q, data) {
		if ( data && data.length && hasFocus ) {
			stopLoading();
			select.display(data, q);
			autoFill(q, data[0].value);
			select.show();
		} else {
			hideResultsNow();
		}
	};

	function request(term, success, failure) {
		if (!options.matchCase)
			term = term.toLowerCase();
			
	    var data = cache.load(term);
		// recieve the cached data
		if (data && data.length) {
			success(term, data);
		// if an AJAX url has been supplied, try loading the data now
		} else if( (typeof options.url == "string") && (options.url.length > 0) ){
			
			var extraParams = {
				timestamp: +new Date()
			};
			$.each(options.extraParams, function(key, param) {
				extraParams[key] = typeof param == "function" ? param() : param;
			});
			
			$.ajax({
				// try to leverage ajaxQueue plugin to abort previous requests
				mode: "abort",
				// limit abortion to this input
				port: "autocomplete" + input.name,
				dataType: options.dataType,
				url: options.url,
				data: $.extend({
					q: lastWord(term),
					limit: options.max
				}, extraParams),
				success: function(data) {
					var parsed = options.parse && options.parse(data) || parse(data);
					cache.add(term, parsed);
					success(term, parsed);
				}
			});
		} else {
			// if we have a failure, we need to empty the list -- this prevents the the [TAB] key from selecting the last successful match
			select.emptyList();
			failure(term);
		}
	};
	
	function parse(data) {
		var parsed = [];
		var rows = data.split("\n");
		for (var i=0; i < rows.length; i++) {
			var row = $.trim(rows[i]);
			if (row) {
				row = row.split("|");
				parsed[parsed.length] = {
					data: row,
					value: row[0],
					result: options.formatResult && options.formatResult(row, row[0]) || row[0]
				};
			}
		}
		return parsed;
	};

	function stopLoading() {
		$input.removeClass(options.loadingClass);
	};

};

$.Autocompleter.defaults = {
	inputClass: "ac_input",
	resultsClass: "ac_results",
	loadingClass: "ac_loading",
	minChars: 1,
	delay: 400,
	matchCase: false,
	matchSubset: true,
	matchContains: false,
	cacheLength: 10,
	max: 100,
	mustMatch: false,
	extraParams: {},
	selectFirst: true,
	formatItem: function(row) { return row[0]; },
	formatMatch: null,
	autoFill: false,
	width: 0,
	multiple: false,
	multipleSeparator: ", ",
	highlightColor: "#ffffff",
	highlight: function(value, term) {
        var keyWord = "<strong style='color:"+this.highlightColor+"' >$1</strong>";
		return value.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + term.replace(/([\^\$\(\)\[\]\{\}\*\.\+\?\|\\])/gi, "\\$1") 
		    + ")(?![^<>]*>)(?![^&;]+;)", "gi"), keyWord );
	},
    scroll: true,
    scrollHeight: 180,
    usedForSmartSelect:false,
    usedForSmartSelectBtn: null,
    usedForSmartSelectBtnClear: null,
    usedForSmartSelectSel: null
};

$.Autocompleter.Cache = function(options) {

	var data = {};
	var length = 0;
	
	function matchSubset(s, sub) {
		if (!options.matchCase) 
			s = s.toLowerCase();
		var i = s.indexOf(sub);
		if (options.matchContains == "word"){
			i = s.toLowerCase().search("\\b" + sub.toLowerCase());
		}
		if (i == -1) return false;
		return i == 0 || options.matchContains;
	};
	
	function add(q, value) {
		if (length > options.cacheLength){
			flush();
		}
		if (!data[q]){ 
			length++;
		}
		data[q] = value;
	}
	
	function populate(){
		if( !options.data ) return false;
		// track the matches
		var stMatchSets = {},
			nullData = 0;

		// no url was specified, we need to adjust the cache length to make sure it fits the local data store
		if( !options.url ) options.cacheLength = 1;
		
		// track all options for minChars = 0
		stMatchSets[""] = [];
		
		// loop through the array and create a lookup structure
		for ( var i = 0, ol = options.data.length; i < ol; i++ ) {
			var rawValue = options.data[i];
			// if rawValue is a string, make an array otherwise just reference the array
			rawValue = (typeof rawValue == "string") ? [rawValue] : rawValue;
			
			var value = options.formatMatch(rawValue, i+1, options.data.length);
			if ( value === false )
				continue;
				
			var firstChar = value.charAt(0).toLowerCase();
			// if no lookup array for this character exists, look it up now
			if( !stMatchSets[firstChar] ) 
				stMatchSets[firstChar] = [];

			// if the match is a string
			var row = {
				value: value,
				data: rawValue,
				result: options.formatResult && options.formatResult(rawValue) || value
			};
			
			// push the current match into the set list
			stMatchSets[firstChar].push(row);

			// keep track of minChars zero items
			if ( nullData++ < options.max ) {
				stMatchSets[""].push(row);
			}
		};

		// add the data items to the cache
		$.each(stMatchSets, function(i, value) {
			// increase the cache size
			options.cacheLength++;
			// add to the cache
			add(i, value);
		});
	}
	
	// populate any existing data
	setTimeout(populate, 25);
	
	function flush(){
		data = {};
		length = 0;
	}
	
	return {
		flush: flush,
		add: add,
		populate: populate,
		load: function(q) {
			if (!options.cacheLength || !length)
				return null;
			/* 
			 * if dealing w/local data and matchContains than we must make sure
			 * to loop through all the data collections looking for matches
			 */
			if( !options.url && options.matchContains ){
				// track all matches
				var csub = [];
				// loop through all the data grids for matches
				for( var k in data ){
					// don't search through the stMatchSets[""] (minChars: 0) cache
					// this prevents duplicates
					if( k.length > 0 ){
						var c = data[k];
						$.each(c, function(i, x) {
							// if we've got a match, add it to the array
							if (matchSubset(x.value, q)) {
								csub.push(x);
							}
						});
					}
				}				
				return csub;
			} else 
			// if the exact item exists, use it
			if (data[q]){
				return data[q];
			} else
			if (options.matchSubset) {
				for (var i = q.length - 1; i >= options.minChars; i--) {
					var c = data[q.substr(0, i)];
					if (c) {
						var csub = [];
						$.each(c, function(i, x) {
							if (matchSubset(x.value, q)) {
								csub[csub.length] = x;
							}
						});
						return csub;
					}
				}
			}
			return null;
		}
	};
};

$.Autocompleter.Select = function (options, input, select, config) {
	var CLASSES = {
		ACTIVE: "ac_over"
	};
	
	var listItems,
		active = -1,
		data,
		term = "",
		needsInit = true,
		element,
		list;
	
	// Create results
	function init() {
		if (!needsInit)
			return;
        //
		element = $("<div/>")
		.hide()
		.addClass(options.resultsClass)
		.addClass("smartselect")
		.css({"position":"absolute"})
		.appendTo(document.body);
	
		list = $("<ul/>").css({ "overflow-x" : "hidden" }).appendTo(element).mouseover( function(event) {
			if(target(event).nodeName && target(event).nodeName.toUpperCase() == 'LI') {
	            active = $("li", list).removeClass(CLASSES.ACTIVE).index(target(event));
			    $(target(event)).addClass(CLASSES.ACTIVE);            
	        }
		}).click(function(event) {
			$(target(event)).addClass(CLASSES.ACTIVE);
			select();
			// TODO provide option to avoid setting focus again after selection? useful for cleanup-on-focus
			input.focus();
			return false;
		}).mousedown(function() {
			config.mouseDownOnSelect = true;
		}).mouseup(function() {
			config.mouseDownOnSelect = false;
		});
		
		if( options.width > 0 )
			element.css("width", options.width);
			
		needsInit = false;
	} 
	
	function target(event) {
		var element = event.target;
		while(element && element.tagName != "LI")
			element = element.parentNode;
		// more fun with IE, sometimes event.target is empty, just ignore it then
		if(!element)
			return [];
		return element;
	}

	function moveSelect(step) {
		listItems.slice(active, active + 1).removeClass(CLASSES.ACTIVE);
		movePosition(step);
        var activeItem = listItems.slice(active, active + 1).addClass(CLASSES.ACTIVE);
        if(options.scroll) {
            var offset = 0;
            listItems.slice(0, active).each(function() {
				offset += this.offsetHeight;
			});
            if((offset + activeItem[0].offsetHeight - list.scrollTop()) > list[0].clientHeight) {
                list.scrollTop(offset + activeItem[0].offsetHeight - list.innerHeight());
            } else if(offset < list.scrollTop()) {
                list.scrollTop(offset);
            }
        }
	};
	
	function movePosition(step) {
		active += step;
		if (active < 0) {
			active = listItems.size() - 1;
		} else if (active >= listItems.size()) {
			active = 0;
		}
	}
	
	function limitNumberOfItems(available) {
		return options.max && options.max < available
			? options.max
			: available;
	}
	
	function fillList() {
		list.empty();
		var max = limitNumberOfItems(data.length);
		for (var i=0; i < max; i++) {
			if (!data[i])
				continue;
			var formatted = options.formatItem(data[i].data, i+1, max, data[i].value, term);
			if ( formatted === false )
				continue;
			var li = $("<li/>").html( options.highlight(formatted, term) ).addClass(i%2 == 0 ? "ac_even" : "ac_odd").appendTo(list)[0];
			$.data(li, "ac_data", data[i]);
		}
		listItems = list.find("li");
		if ( options.selectFirst ) {
			listItems.slice(0, 1).addClass(CLASSES.ACTIVE);
			active = 0;
		}
		// apply bgiframe if available
		if ( $.fn.bgiframe )
			list.bgiframe();
	}
	
	return {
		display: function(d, q) {
			init();
			data = d;
			term = q;
			fillList();
		},
		next: function() {
			moveSelect(1);
		},
		prev: function() {
			moveSelect(-1);
		},
		pageUp: function() {
			if (active != 0 && active - 8 < 0) {
				moveSelect( -active );
			} else {
				moveSelect(-8);
			}
		},
		pageDown: function() {
			if (active != listItems.size() - 1 && active + 8 > listItems.size()) {
				moveSelect( listItems.size() - 1 - active );
			} else {
				moveSelect(8);
			}
		},
		hide: function() {
			element && element.hide();
			listItems && listItems.removeClass(CLASSES.ACTIVE);
			active = -1;
		},
		visible : function() {
			return element && element.is(":visible");
		},
		current: function() {
			return this.visible() && (listItems.filter("." + CLASSES.ACTIVE)[0] || options.selectFirst && listItems[0]);
		},
		show: function() {
			var offset = $(input).offset();
			element.css({
				width: typeof options.width == "string" || options.width > 0 ? options.width : $(input).width(),
				top: offset.top + input.offsetHeight,
				left: offset.left
			}).show();
            if(options.scroll) {
                list.scrollTop(0);
                list.css({
					maxHeight: options.scrollHeight,
					overflow: 'auto'
				});
				
                //if($.browser.msie && typeof document.body.style.maxHeight === "undefined") {
					var listHeight = 0;
					listItems.each(function() {
						listHeight += this.offsetHeight;
					});
					var scrollbarsVisible = listHeight > options.scrollHeight;
                    
                    list.css('height', scrollbarsVisible ? options.scrollHeight : listHeight );
					
					//element.css('height', scrollbarsVisible ? options.scrollHeight : listHeight+5 );
					
					if (!scrollbarsVisible) {
						// IE doesn't recalculate width when scrollbar disappears
						listItems.width( list.width() - parseInt(listItems.css("padding-left")) - parseInt(listItems.css("padding-right"))+10  );
					}
                //}
            }
		},
		selected: function() {
			var selected = listItems && listItems.filter("." + CLASSES.ACTIVE).removeClass(CLASSES.ACTIVE);
			return selected && selected.length && $.data(selected[0], "ac_data");
		},
		emptyList: function (){
			list && list.empty();
		},
		unbind: function() {
			element && element.remove();
		}
	};
};

$.fn.selection = function(start, end) {
	if (start !== undefined) {
		return this.each(function() {
			if( this.createTextRange ){
				var selRange = this.createTextRange();
				if (end === undefined || start == end) {
					selRange.move("character", start);
					selRange.select();
				} else {
					selRange.collapse(true);
					selRange.moveStart("character", start);
					selRange.moveEnd("character", end);
					selRange.select();
				}
			} else if( this.setSelectionRange ){
				this.setSelectionRange(start, end);
			} else if( this.selectionStart ){
				this.selectionStart = start;
				this.selectionEnd = end;
			}
		});
	}
	var field = this[0];
	if ( field.createTextRange ) {
		var range = document.selection.createRange(),
			orig = field.value,
			teststring = "<->",
			textLength = range.text.length;
		range.text = teststring;
		var caretAt = field.value.indexOf(teststring);
		field.value = orig;
		this.selection(caretAt, caretAt + textLength);
		return {
			start: caretAt,
			end: caretAt + textLength
		}
	} else if( field.selectionStart !== undefined ){
		return {
			start: field.selectionStart,
			end: field.selectionEnd
		}
	}
};

})(jQuery);

2. jquery.autocomplete.css

.ac_results {
	padding: 0px;
	border: 1px solid black;
	background-color: white;
	overflow: hidden;
	z-index: 99999;text-align:left;
}

.ac_results ul {
	width: 100%;
	list-style-position: outside;
	list-style: none;
	padding: 0;
	margin: 0;text-align:left;
}

.ac_results li {
	margin: 0px;
	padding: 2px 5px;
	cursor: default;
	display: block;
	/* 
	if width will be 100% horizontal scrollbar will apear 
	when scroll mode will be used
	*/
	/*width: 100%;*/
	font: menu;
	font-size: 12px;
	/* 
	it is very important, if line-height not setted or setted 
	in relative units scroll will be broken in firefox
	*/
	line-height: 16px;
	overflow: hidden;text-align:left;
}

.ac_loading {
	background: white url('indicator.gif') right center no-repeat;
}

.ac_odd {
	background-color: #eee;text-align:left;
}

.ac_over {
	background-color: #0A246A;
	color: white;
	text-align:left;
}

3. jq.smallTools.js

//=====================================================================    
//插件名称: smartselect    
//作    者: yenange
//功能说明: 将 下拉列表控件 转变成可以智能提示、带下拉的文本框
//输入参数: 无 
//调用示例: .net控件: $(function(){  $("#<%=ddlTest.ClientID %>").smartselect();  });
//          html控件: $(function(){  $("#ddlTest").smartselect();  });
//输出参数: select的jquery对象
//注      : 1. 基本功能在IE可用;
//          2. 如果是联动效果， 如: 另一 DropDownList( A_Prev ) 在onchange 时改变此 DropDownList(A), 建议在onchange事件最后加上重新绑定插件
//             function onchange{ .........  $ddl.smartselect(); }
//          3. 如果此 DropDownList(A)　的改变，会联动到下一 DropDownList ( A_Next )，设置了 AutoPostBack="true"
//             或者 后台 A.Attributes.Add("onchange","??")　均可以。
//创建日期: 2012-08-11
;(function($) {
    $.fn.extend({
        "smartselect": function () {
            var $sel=this;  //this已是jquery对象
            $( "#txt_SS_"+$sel.attr("id")+",#btn_SS_"+$sel.attr("id")+",#btn_SS_Close_"+$sel.attr("id") ).remove();
            var inputHtml="<input type='text' id='txt_SS_"+$sel.attr("id")+"' class='fslTextBox smartselect' style=\"height:20px;cursor:pointer;\">";
            var imgPath="/rms/CmInClude/jqPulgin/smallTools/smartselect.gif"; //"autoComplete/smartselect.gif"
            var btnHtml="<input type='button' class='CmButton smartselect' value='...' id='btn_SS_"+$sel.attr("id")+"' style=\"cursor:pointer;\">";//background: url('"+imgPath+"') no-repeat scroll right center #FFFFFF;
            var btnClearHtml="<img id='btn_SS_Close_"+$sel.attr("id")+"' class='smartselect' title='清空' src='/rms/CmImg/X.gif' border='0' style='cursor:pointer;' />";
            var $txt = $(inputHtml);
            var $btn = $(btnHtml);
            var $btnClear = $(btnClearHtml);
            $txt.width($sel.width());
            $sel.before( $txt ).before($btn).before($btnClear);
            
            $btn.mousedown(function(){
                //重要的一步，　判断焦点是否在 文本框　上
                var act = document.activeElement.id;
                $btn.data("activeElementIsTxt", (act == $txt.attr("id") || act== $sel.attr("id") ) ?"1":"0" )
            }).click(function(){
                $btn.data("btnClick", "1");
                $btn.data("txtStartValue",$txt.val());
                $btn.data("selStartValue",$sel.val());
                $txt.val("");
                $txt.focus();
                setTimeout(function(){
                    $txt.click();
                },200);
                
                var $divEmpty=$("<div style='position: absolute;' class='ac_results>");
                $divEmpty.width($txt.width());
                $divEmpty.css({"top":$txt.css("top")+$txt.height()});
            });
            $btnClear.click(function(){
                $txt.val($sel.find("option:first").text()); //初始化为第一项
                txtSyncToSel($txt.val());                   //联动到下拉列表
            });
            
            selSyncToTxt(false);
            
            $sel.hide();
            $sel.bind("change",function(){
                selSyncToTxt(true);
            });
            $sel.unbind("propertychange").bind("propertychange", function(e) {
                e.preventDefault();
                selSyncToTxt(true);
            });
            
            $txt.autocomplete(getSelTextArr().txtArr, {
                minChars: 0,
                max: 100,
                autoFill: false,
                matchContains: true,
                scroll: true,
                scrollHeight: 300,
                highlightColor: "red",
                usedForSmartSelect: true,
                usedForSmartSelectBtn: $btn,
                usedForSmartSelectBtnClear: $btnClear,
                usedForSmartSelectSel: $sel
            }).result(function(event,data,formatted){
                txtSyncToSel(data);
            }).blur(function(){
                //如果是点击按钮触发，而且文本框为空，而且下拉列表最初的值没有产生变化,　不作处理
                if($btn.data("btnClick")=="1" && $txt.val()=="" && $btn.data("selStartValue")==$sel.val()){
                    return;
                }
                //如果两者本身已能对应，就不需要同步了
                if(  $txt.val()==$sel.find("option:selected").text() ){
                    return;
                }
                txtSyncToSel($txt.val());
            });
            //将文本框的显示文本同步到下拉列表
            function txtSyncToSel(txtVal){
                var isEqual=false;
                var data = getSelTextArr();
                var selTextArr = data.txtArr;
                var selValArr  = data.valArr;
                for(var i in selTextArr){
                    if(txtVal==selTextArr[i]){
                        $sel.val(selValArr[i]);
                        isEqual=true;
                        break;
                    }
                }
                
                if(!isEqual){
                    $txt.val($sel.find("option:first").text());
                }
                _selfOnChange();
            }
            //将下拉同步文本框
            function selSyncToTxt( triggerOnChange ){
                if(typeof(triggerOnChange)=="undefined"){
                    triggerOnChange=false;
                }
                //如果两者本身已能对应，就不需要同步了
                if( ($txt.val()==$sel.find("option:selected").text()) ){
                    return;
                }
                
                $txt.val($sel.find(":selected").text());
                
                if(triggerOnChange){
                    _selfOnChange();
                }
            }
            
            function _selfOnChange(){
                var strEvent=$sel.attr("onchange");
                if( strEvent==null || strEvent==undefined || typeof(strEvent)!="function"){
                    return;
                }
                var funcName = strEvent.toString();
                if(funcName.indexOf("__doPostBack")!=-1){
                    setTimeout(function(){
                        $sel[0].onchange();
                    },800);
                }
                else{
                    $sel[0].onchange();
                }
            }
            
            //取得下拉列表的文本的数组
            function getSelTextArr(){
                var selTextArr=[];
                var selValArr=[];
                $sel.find("option").each(function(){
                    selTextArr.push($(this).text());
                    selValArr.push(this.value);
                });
                var data={ txtArr:selTextArr, valArr:selValArr };
                return data;
            }
            
            return this;
        }//end of "smartselect"
        
        //解除插件封装， 显示出原来的控件
        ,"unsmartselect": function () {
            var $sel=this;  //this已是jquery对象
            $( "#txt_SS_"+$sel.attr("id")+",#btn_SS_"+$sel.attr("id") ).remove();
            $sel.show();
            return this;
        }
    });
})(jQuery);

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>无标题页</title>
    <script type="text/javascript">
    function sayValue(){
        alert("值：" + document.getElementById('ddlTest').value);
    }
    </script>
</head>
<body>
<div style="width:100%;text-align:center;" >
    <select id="ddlTest" onchange="alert('发生了onchange事件')" onpropertychange="alert('发生了onpropertychange事件')" >
        <option value=""  ><--全部--></option>
        <option value="1" >湖南</option>
        <option value="2" >湖北</option>
        <option value="3" >广东</option>
        <option value="4" >广西</option>
    </select>
    <input id="Button2" type="button" value="改变下拉列表的值为广东" onclick="document.getElementById('ddlTest').value='3'" />
    <input id="Button1" type="button" value="选中了：" onclick="sayValue()" />
</div>
</body>
</html>

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="PostBack.aspx.cs" Inherits="examples_PostBack" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>无标题页</title>
    <script src="flexselect/jquery.min.js" type="text/javascript"></script>
    <link href="autoComplete/jquery.autocomplete.css" rel="stylesheet" type="text/css" />
    <script src="autoComplete/jquery.autocomplete.min.js" type="text/javascript"></script>
    <script src="autoComplete/jq.smallTools.js" type="text/javascript"></script>
    <script type="text/javascript">
        $(function(){  $("#<%=ddlTest.ClientID %>").smartselect();  });
    </script>
</head>
<body>
    <form id="form1" runat="server">
    <span>
    <asp:DropDownList ID="ddlTest" runat="server" Width="150px" AutoPostBack="true" >
            <asp:ListItem Value="" Text="<--全部-->"></asp:ListItem>
            <asp:ListItem Value="1" Text="湖南"></asp:ListItem>
            <asp:ListItem Value="2" Text="湖北"></asp:ListItem>
            <asp:ListItem Value="3" Text="广东"></asp:ListItem>
            <asp:ListItem Value="4" Text="广西"></asp:ListItem>
        </asp:DropDownList>
    </span>
    <asp:Button ID="Button1" runat="server" Text="Button" />
    </form>
</body>
</html>

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章节导航

samrtselect——将 下拉列表控件 转变成可以智能提示、带下拉的文本框

samrtselect——将下拉列表控件转变成可以智能提示、带下拉的文本框