标签：string hang 自动完成 fse highlight value 输入 obj ret
<!doctype html> <html> <style> body { margin-left: 0px; margin-top: 0px; margin-right: 0px; margin-bottom: 0px; } .auto_hidden { width: 204px; border-top: 1px solid #333; border-bottom: 1px solid #333; border-left: 1px solid #333; border-right: 1px solid #333; position: absolute; display: none; } .auto_show { width: 204px; border-top: 1px solid #333; border-bottom: 1px solid #333; border-left: 1px solid #333; border-right: 1px solid #333; position: absolute; z-index: 9999; /* 设置对象的层叠顺序 */ display: block; } .auto_onmouseover { color: #ffffff; background-color: highlight; width: 100%; } .auto_onmouseout { color: #000000; width: 100%; background-color: #ffffff; } </style> <script language="javascript"> <!-- var $ = function(id) { return "string" == typeof id ? document.getElementById(id) : id; } var Bind = function(object, fun) { return function() { return fun.apply(object, arguments); } } function AutoComplete(obj, autoObj, arr) { this.obj = $(obj); //输入框 this.autoObj = $(autoObj);//DIV的根节点 this.value_arr = arr; //不要包含重复值 this.index = -1; //当前选中的DIV的索引 this.search_value = ""; //保存当前搜索的字符 } AutoComplete.prototype = { //初始化DIV的位置 init : function() { this.autoObj.style.left = this.obj.offsetLeft + "px"; this.autoObj.style.top = this.obj.offsetTop + this.obj.offsetHeight + "px"; this.autoObj.style.width = this.obj.offsetWidth - 2 + "px";//减去边框的长度2px }, //删除自动完成需要的所有DIV deleteDIV : function() { while (this.autoObj.hasChildNodes()) { this.autoObj.removeChild(this.autoObj.firstChild); } this.autoObj.className = "auto_hidden"; }, //设置值 setValue : function(_this) { return function() { _this.obj.value = this.seq; _this.autoObj.className = "auto_hidden"; } }, //模拟鼠标移动至DIV时，DIV高亮 autoOnmouseover : function(_this, _div_index) { return function() { _this.index = _div_index; var length = _this.autoObj.children.length; for ( var j = 0; j < length; j++) { if (j != _this.index) { _this.autoObj.childNodes[j].className = ‘auto_onmouseout‘; } else { _this.autoObj.childNodes[j].className = ‘auto_onmouseover‘; } } } }, //更改classname changeClassname : function(length) { for ( var i = 0; i < length; i++) { if (i != this.index) { this.autoObj.childNodes[i].className = ‘auto_onmouseout‘; } else { this.autoObj.childNodes[i].className = ‘auto_onmouseover‘; this.obj.value = this.autoObj.childNodes[i].seq; } } }, //响应键盘 pressKey : function(event) { var length = this.autoObj.children.length; //光标键"↓" if (event.keyCode == 40) { ++this.index; if (this.index > length) { this.index = 0; } else if (this.index == length) { this.obj.value = this.search_value; } this.changeClassname(length); } //光标键"↑" else if (event.keyCode == 38) { this.index--; if (this.index < -1) { this.index = length - 1; } else if (this.index == -1) { this.obj.value = this.search_value; } this.changeClassname(length); } //回车键 else if (event.keyCode == 13) { this.autoObj.className = "auto_hidden"; this.index = -1; } else { this.index = -1; } }, //程序入口 start : function(event) { if (event.keyCode != 13 && event.keyCode != 38 && event.keyCode != 40) { this.init(); this.deleteDIV(); this.search_value = this.obj.value; var valueArr = this.value_arr; valueArr.sort(); if (this.obj.value.replace(/(^\s*)|(\s*$)/g, ‘‘) == "") { return; }//值为空，退出 try { var reg = new RegExp("(" + this.obj.value + ")", "i"); } catch (e) { return; } var div_index = 0;//记录创建的DIV的索引 for ( var i = 0; i < valueArr.length; i++) { if (reg.test(valueArr[i])) { var div = document.createElement("div"); div.className = "auto_onmouseout"; div.seq = valueArr[i]; div.onclick = this.setValue(this); div.onmouseover = this.autoOnmouseover(this, div_index); div.innerHTML = valueArr[i].replace(reg, "<strong>$1</strong>");//搜索到的字符粗体显示 this.autoObj.appendChild(div); this.autoObj.className = "auto_show"; div_index++; } } } this.pressKey(event); window.onresize = Bind(this, function() { this.init(); }); } } //--> </SCRIPT> <body> <h1 align="center">自动完成函数(Autocomplete Function)</h1> <div align="center"> <input type="text" style="width: 300px; height: 20px; font-size: 14pt;" id="o" onkeyup="autoComplete.start(event)"> </div> <div class="auto_hidden" id="auto"> <!--自动完成 DIV--> </div> <script> var autoComplete = new AutoComplete(‘o‘, ‘auto‘, [ ‘b0‘, ‘b12‘, ‘b22‘, ‘b3‘, ‘b4‘, ‘b5‘, ‘b6‘, ‘b7‘, ‘b8‘, ‘b2‘, ‘abd‘, ‘ab‘, ‘acd‘, ‘accd‘, ‘b1‘, ‘cd‘, ‘ccd‘, ‘cbcv‘, ‘cxf‘ ]); </SCRIPT> </body> </html>
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标签：string hang 自动完成 fse highlight value 输入 obj ret
原文地址：http://www.cnblogs.com/upup2015/p/7782629.html
