我正在尝试在textarea上实现类似auto-complete的twitter / facebook。现在直到现在我已经实现了单触发器" @"。但我希望它适用于2个触发器" @"和"#"。 两者都有不同的数据集。
这是单个数据集。这个很好用。
HTML
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<meta charset="utf-8">
<title>JS Bin</title>
</head>
<body>
<textarea class="searchBox" cols="20" rows="10"></textarea>
</body>
</html>
JS
var triggered = false; // By default trigger is off
var trigger = "@"; // Defining the trigger
var data = [
{
label: "abc",
value: "abc@live.com"
},
{
label: "def",
value: "deg@altman.com"
},
{
label: "ghf",
value: "sds@lane.com"
}
];
$(".searchBox").autocomplete({
minLength: 0,
source: data,
search: function () {
if (!triggered) {
return false;
}
},
select: function (event, ui){
var text = this.value;
var pos = text.lastIndexOf(trigger);
this.value = text.substring(0, pos) + ui.item.value;
triggered = false;
return false;
},
focus: function () {
return false;
}
}).data( "ui-autocomplete" )._renderItem = function (ul, item) {
return $("<li>")
.append("<a>" + "<b>" + item.label + "</b> " + item.value + "</a>")
.appendTo(ul);
};
$('.searchBox').keyup(function (e) {
if (e.keyCode == 38 || e.keyCode == 40) {
return;
}
var text = this.value;
var len = text.length;
var last;
var query;
var index;
if (triggered) {
index = text.lastIndexOf(trigger);
query = text.substring(index + trigger.length);
$(this).autocomplete("search",query);
} else if (len >= trigger.length) {
last = text.substring(len - trigger.length);
triggered = (last === trigger);
}
});
这里是小提琴:http://jsbin.com/qakefini/7/edit
现在我尝试了2个触发器:
HTML
<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href="//code.jquery.com/ui/1.10.4/themes/smoothness/jquery-ui.css">
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="//code.jquery.com/ui/1.10.4/jquery-ui.js"></script>
<meta charset="utf-8">
<title>JS Bin</title>
</head>
<body>
<textarea class="searchBox" cols="20" rows="10"></textarea>
</body>
</html>
JS
var triggered = false;
var trigger1 = "@";
var trigger2 = "#"; // Defining the trigger
var trigger = "@";
var data1 = [
{
label: "abc",
value: "abc@live.com"
},
{
label: "def",
value: "deg@altman.com"
},
{
label: "ghf",
value: "sds@lane.com"
}
];
var data2 = [
{
tag: "what"
},
{
tag: "hello"
},
{
tag: "there"
}
];
var data = jQuery.extend(true, {}, data1);
$(".searchBox").autocomplete({
minLength: 0,
source: data,
search: function () {
if (!triggered) {
return false;
}
},
select: function (event, ui){
var text = this.value;
var pos = text.lastIndexOf(trigger);
this.value = text.substring(0, pos) + ui.item.value;
triggered = false;
return false;
},
focus: function () {
return false;
}
}).data( "ui-autocomplete" )._renderItem = function (ul, item) {
return $("<li>")
.append("<a>" + "<b>" + item.label + "</b>" + item.value + "</a>")
.appendTo(ul);
};
$(".searchBox").keypress(function (e) {
if (e.charCode != 64 && e.charCode != 35) {
return;
}
if (e.charCode == 64) {
trigger = trigger1;
data = jQuery.extend(true, {}, data1);
}
else if (e.charCode == 35 ){
trigger = trigger2;
data = jQuery.extend(true, {}, data2);
}
});
$(".searchBox").autocomplete({
minLength: 0,
source: data,
search: function () {
if (!triggered) {
return false;
}
},
select: function (event, ui){
var text = this.value;
var pos = text.lastIndexOf(trigger);
this.value = text.substring(0, pos) + ui.item.value;
triggered = false;
return false;
},
focus: function () {
return false;
}
}).data( "ui-autocomplete" )._renderItem = function (ul, item) {
return $("<li>")
.append("<a>" + "<b>" + item.label + "</b> " + item.value + "</a>")
.appendTo(ul);
};
$('.searchBox').keyup(function (e) {
if (e.keyCode == 38 || e.keyCode == 40) {
return;
}
var text = this.value;
var len = text.length;
var last;
var query;
var index;
if (triggered) {
index = text.lastIndexOf(trigger);
query = text.substring(index + trigger.length);
$(this).autocomplete("search",query);
} else if (len >= trigger.length) {
last = text.substring(len - trigger.length);
triggered = (last === trigger);
}
});
这是小提琴:http://jsbin.com/qakefini/22/edit
它没有响应搜索查询。哪里出错了? 请帮忙。 谢谢。 问候。
答案 0 :(得分:0)
在第二个示例中,您有两个数组data1
和data2
,但您告诉.autocomplete()
数据源为data
(该行显示为: source: data
) - 未定义。