关键字:tag 标签 输入标签化
来自:http://xoxco.com/projects/code/tagsinput/
这是一个JQuery插件,输入字符,按回车,变标签。
基本原理:
标签框是一个大DIV叫tags_3_tagsinput,DIV里有显示标签的span和输入用的input。当你在input里面输入一些字符,按回车
就变成一个span显示标签,插在input前面。
强烈建议你,花上两个小时,下载它的DEMO,用firebug来调试,观察其对HTML DOM的影响。
功能:
除了生成标签外,还能对输入重复标签进行检查,和JQuery autocomplete插件配合实现自动完成功能。
它的可选项如下:
$(selector).tagsInput({
'autocomplete_url': url_to_autocomplete_api,//JQueryUI的自动完成插件,的目标地址
'autocomplete': { option: value, option: value},//这个去官网看吧
'height':'100px',//大DIV的高度
'width':'300px',//大DIV的宽度
'interactive':true,
'defaultText':'add a tag',//默认输入框的文本提示
'onAddTag':callback_function,//添加标签时的事件函数
'onRemoveTag':callback_function,//移除标签时的事件函数
'onChange' : callback_function,//不大清楚
'removeWithBackspace' : true,//自己看
'minChars' : 0,
'maxChars' : 0 //if not provided there is no limit,
'placeholderColor' : '#666666'//自己看
});
'autocomplete_url': url_to_autocomplete_api,//JQueryUI的自动完成插件,的目标地址
'autocomplete': { option: value, option: value},//这个去官网看吧
'height':'100px',//大DIV的高度
'width':'300px',//大DIV的宽度
'interactive':true,
'defaultText':'add a tag',//默认输入框的文本提示
'onAddTag':callback_function,//添加标签时的事件函数
'onRemoveTag':callback_function,//移除标签时的事件函数
'onChange' : callback_function,//不大清楚
'removeWithBackspace' : true,//自己看
'minChars' : 0,
'maxChars' : 0 //if not provided there is no limit,
'placeholderColor' : '#666666'//自己看
});
整个DEMO的代码:
<link rel="stylesheet" type="text/css" href="http://xoxco.com/projects/code/tagsinput/jquery.tagsinput.css" />
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
<script type="text/javascript" src="http://xoxco.com/projects/code/tagsinput/jquery.tagsinput.js"></script>
<!-- To test using the original jQuery.autocomplete, uncomment the following -->
<!--
<script type='text/javascript' src='http://xoxco.com/x/tagsinput/jquery-autocomplete/jquery.autocomplete.min.js'></script>
<link rel="stylesheet" type="text/css" href="http://xoxco.com/x/tagsinput/jquery-autocomplete/jquery.autocomplete.css" />
-->
<script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.13/jquery-ui.min.js'></script>
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.13/themes/start/jquery-ui.css" />
<script type="text/javascript">
function onAddTag(tag) {
alert("Added a tag: " + tag);
}
function onRemoveTag(tag) {
alert("Removed a tag: " + tag);
}
function onChangeTag(input,tag) {
alert("Changed a tag: " + tag);
}
$(function() {
$('#tags_1').tagsInput({width:'auto'});
$('#tags_2').tagsInput({
width: 'auto',
onChange: function(elem, elem_tags)
{
var languages = ['php','ruby','javascript'];
$('.tag', elem_tags).each(function()
{
if($(this).text().search(new RegExp('\\b(' + languages.join('|') + ')\\b')) >= 0)
$(this).css('background-color', 'yellow');
});
}
});
$('#tags_3').tagsInput({
width: 'auto',
//autocomplete_url:'test/fake_plaintext_endpoint.html' //jquery.autocomplete (not jquery ui)
autocomplete_url:'test/fake_json_endpoint.html' // jquery ui autocomplete requires a json endpoint
});
// Uncomment this line to see the callback functions in action
// $('input.tags').tagsInput({onAddTag:onAddTag,onRemoveTag:onRemoveTag,onChange: onChangeTag});
// Uncomment this line to see an input with no interface for adding new tags.
// $('input.tags').tagsInput({interactive:false});
});
</script>
<form>
<p><label>Defaults:</label>
<input id="tags_1" type="text" class="tags" value="foo,bar,baz,roffle" /></p>
<p><label>Technologies: (Programming languages in yellow)</label>
<input id="tags_2" type="text" class="tags" value="php,ios,javascript,ruby,android,kindle" /></p>
<p><label>Autocomplete:</label>
<input id='tags_3' type='text' class='tags'></p>
</form>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.5.2/jquery.min.js"></script>
<script type="text/javascript" src="http://xoxco.com/projects/code/tagsinput/jquery.tagsinput.js"></script>
<!-- To test using the original jQuery.autocomplete, uncomment the following -->
<!--
<script type='text/javascript' src='http://xoxco.com/x/tagsinput/jquery-autocomplete/jquery.autocomplete.min.js'></script>
<link rel="stylesheet" type="text/css" href="http://xoxco.com/x/tagsinput/jquery-autocomplete/jquery.autocomplete.css" />
-->
<script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.13/jquery-ui.min.js'></script>
<link rel="stylesheet" type="text/css" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.13/themes/start/jquery-ui.css" />
<script type="text/javascript">
function onAddTag(tag) {
alert("Added a tag: " + tag);
}
function onRemoveTag(tag) {
alert("Removed a tag: " + tag);
}
function onChangeTag(input,tag) {
alert("Changed a tag: " + tag);
}
$(function() {
$('#tags_1').tagsInput({width:'auto'});
$('#tags_2').tagsInput({
width: 'auto',
onChange: function(elem, elem_tags)
{
var languages = ['php','ruby','javascript'];
$('.tag', elem_tags).each(function()
{
if($(this).text().search(new RegExp('\\b(' + languages.join('|') + ')\\b')) >= 0)
$(this).css('background-color', 'yellow');
});
}
});
$('#tags_3').tagsInput({
width: 'auto',
//autocomplete_url:'test/fake_plaintext_endpoint.html' //jquery.autocomplete (not jquery ui)
autocomplete_url:'test/fake_json_endpoint.html' // jquery ui autocomplete requires a json endpoint
});
// Uncomment this line to see the callback functions in action
// $('input.tags').tagsInput({onAddTag:onAddTag,onRemoveTag:onRemoveTag,onChange: onChangeTag});
// Uncomment this line to see an input with no interface for adding new tags.
// $('input.tags').tagsInput({interactive:false});
});
</script>
<form>
<p><label>Defaults:</label>
<input id="tags_1" type="text" class="tags" value="foo,bar,baz,roffle" /></p>
<p><label>Technologies: (Programming languages in yellow)</label>
<input id="tags_2" type="text" class="tags" value="php,ios,javascript,ruby,android,kindle" /></p>
<p><label>Autocomplete:</label>
<input id='tags_3' type='text' class='tags'></p>
</form>
该知道引用哪些文件了吧。就是JQuery,JQueryUI和其CSS,它自己的JS文件和CSS。
来源:https://www.cnblogs.com/samwu/archive/2012/03/08/2385929.html