jQuery UI 中文参考手册
/ 自动完成(Autocomplete)
自动完成(Autocomplete)
根据用户输入值进行搜索和过滤,让用户快速找到并从预设值列表中选择。
如需了解更多有关 autocomplete 部件的细节,请查看 API 文档 自动完成部件(Autocomplete Widget)。
默认功能
当您在输入域中输入时,自动完成(Autocomplete)部件提供相应的建议。在本实例中,提供了编程语言的建议选项,您可以输入 "ja" 尝试一下,可以得到 Java 或 JavaScript。
数据源是一个简单的 JavaScript 数组,使用 source 选项提供给部件。
实例
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 自动完成(Autocomplete) - 默认功能</title> <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> <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css"> <script> $(function() { var availableTags = [ "ActionScript", "AppleScript", "Asp", "BASIC", "C", "C++", "Clojure", "COBOL", "ColdFusion", "Erlang", "Fortran", "Groovy", "Haskell", "Java", "JavaScript", "Lisp", "Perl", "PHP", "Python", "Ruby", "Scala", "Scheme" ]; $( "#tags" ).autocomplete({ source: availableTags }); }); </script> </head> <body> <div class="ui-widget"> <label for="tags">标签:</label> <input id="tags"> </div> </body> </html>
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包含重音
autocomplete 域使用自定义的 source 选项来匹配带有重音字符的结果项,即使文本域不包含重音字符也会匹配。但是如果您在文本域中键入了重音字符,则不会显示非重音的结果项。
尝试键入 "Jo",会看到 "John" 和 "Jörn",然后 键入 "Jö",只会看到 "Jörn"。
实例
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 自动完成(Autocomplete) - 包含重音</title> <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> <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css"> <script> $(function() { var names = [ "Jörn Zaefferer", "Scott González", "John Resig" ]; var accentMap = { "á": "a", "ö": "o" }; var normalize = function( term ) { var ret = ""; for ( var i = 0; i < term.length; i++ ) { ret += accentMap[ term.charAt(i) ] || term.charAt(i); } return ret; }; $( "#developer" ).autocomplete({ source: function( request, response ) { var matcher = new RegExp( $.ui.autocomplete.escapeRegex( request.term ), "i" ); response( $.grep( names, function( value ) { value = value.label || value.value || value; return matcher.test( value ) || matcher.test( normalize( value ) ); }) ); } }); }); </script> </head> <body> <div class="ui-widget"> <form> <label for="developer">开发人员:</label> <input id="developer"> </form> </div> </body> </html>
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分类
分类的搜索结果。尝试键入 "a" 或 "n"。
实例
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 自动完成(Autocomplete) - 分类</title> <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> <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css"> <style> .ui-autocomplete-category { font-weight: bold; padding: .2em .4em; margin: .8em 0 .2em; line-height: 1.5; } </style> <script> $.widget( "custom.catcomplete", $.ui.autocomplete, { _renderMenu: function( ul, items ) { var that = this, currentCategory = ""; $.each( items, function( index, item ) { if ( item.category != currentCategory ) { ul.append( "<li class='ui-autocomplete-category'>" + item.category + "</li>" ); currentCategory = item.category; } that._renderItemData( ul, item ); }); } }); </script> <script> $(function() { var data = [ { label: "anders", category: "" }, { label: "andreas", category: "" }, { label: "antal", category: "" }, { label: "annhhx10", category: "Products" }, { label: "annk K12", category: "Products" }, { label: "annttop C13", category: "Products" }, { label: "anders andersson", category: "People" }, { label: "andreas andersson", category: "People" }, { label: "andreas johnson", category: "People" } ]; $( "#search" ).catcomplete({ delay: 0, source: data }); }); </script> </head> <body> <label for="search">搜索:</label> <input id="search"> </body> </html>
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组合框(Combobox)
一个由 Autocomplete 和 Button 创建的自定义部件。您可以键入一些字符,来获得基于您的输入过滤的结果,或者使用按钮从完整列表中选择。
该输入是从一个已有的 select 元素中读取,传递给带有自定义的 source 选项的 Autocomplete。
这是一个不被支持的不完美的部件。这里纯粹是为了演示 autocomplete 定制功能。如需了解更多有关该部件工作原理的细节,请点击这里查看相关的 jQuery 文章。
实例
<!doctype html> <html lang="en"> <head> <meta charset="utf-8"> <title>jQuery UI 自动完成(Autocomplete) - 组合框(Combobox)</title> <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> <link rel="stylesheet" href="http://jqueryui.com/resources/demos/style.css"> <style> .custom-combobox { position: relative; display: inline-block; } .custom-combobox-toggle { position: absolute; top: 0; bottom: 0; margin-left: -1px; padding: 0; /* 支持: IE7 */ *height: 1.7em; *top: 0.1em; } .custom-combobox-input { margin: 0; padding: 0.3em; } </style> <script> (function( $ ) { $.widget( "custom.combobox", { _create: function() { this.wrapper = $( "<span>" ) .addClass( "custom-combobox" ) .insertAfter( this.element ); this.element.hide(); this._createAutocomplete(); this._createShowAllButton(); }, _createAutocomplete: function() { var selected = this.element.children( ":selected" ), value = selected.val() ? selected.text() : ""; this.input = $( "<input>" ) .appendTo( this.wrapper ) .val( value ) .attr( "title", "" ) .addClass( "custom-combobox-input ui-widget ui-widget-content ui-state-default ui-corner-left" ) .autocomplete({ delay: 0, minLength: 0, source: $.proxy( this, "_source" ) }) .tooltip({ tooltipClass: "ui-state-highlight" }); this._on( this.input, { autocompleteselect: function( event, ui ) { ui.item.option.selected = true; this._trigger( "select", event, { item: ui.item.option }); }, autocompletechange: "_removeIfInvalid" }); }, _createShowAllButton: function() { var input = this.input, wasOpen = false; $( "<a>" ) .attr( "tabIndex", -1 ) .attr( "title", "Show All Items" ) .tooltip() .appendTo( this.wrapper ) .button({ icons: { primary: "ui-icon-triangle-1-s" }, text: false }) .removeClass( "ui-corner-all" ) .addClass( "custom-combobox-toggle ui-corner-right" ) .mousedown(function() { wasOpen = input.autocomplete( "widget" ).is( ":visible" ); }) .click(function() { input.focus(); // 如果已经可见则关闭 if ( wasOpen ) { return; } // 传递空字符串作为搜索的值,显示所有的结果 input.autocomplete( "search", "" ); }); }, _source: function( request, response ) { var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" ); response( this.element.children( "option" ).map(function() { var text = $( this ).text(); if ( this.value && ( !request.term || matcher.test(text) ) ) return { label: text, value: text, option: this }; }) ); }, _removeIfInvalid: function( event, ui ) { // 选择一项,不执行其他动作 if ( ui.item ) { return; } // 搜索一个匹配(不区分大小写) var value = this
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