我想在 jquery 自动完成中突出显示匹配的字符。
如果我输入 GC，它会在下面给我，没关系
Green Community
现在我希望 G 和 C 都大胆/强烈。
$('#9').autocomplete({
source: "auto_loc_name.php",
selectFirst: true,
minLength: 0,
select: function (event, ui) {
alert(ui.item.value);
}
});
您可以根据jQueryUI 中的代码尝试类似的操作：如何自定义格式化自动完成插件结果？
function monkeyPatchAutocomplete() {
$.ui.autocomplete.prototype._renderItem = function (ul, item) {
var matchstring = [];
$.each(this.term.split(""), function(index, c){
matchstring.push("^"+c+"|\b"+c);
});
var output = item.label.replace(new RegExp("(" + matchstring.join("|") + ")", "gi"), '<span class="ui-menu-item-highlight">$1</span>');
return $("<li>")
.append($("<a>").html(output))
.appendTo(ul);
};
}
$(function () {
monkeyPatchAutocomplete();
});
可能会或可能不会工作。这个想法是为每个字符获取一个像 ^G|\bG 这样的正则表达式字符串。我敢肯定这会遗漏很多案例，所以请继续努力。
编辑：工作 jFiddle。http://jsfiddle.net/9MC5M/与上面的代码类似，但修复了一些错误。搜索被故意破坏，它只返回所有项目以展示突出显示。
我使用 JQuery Autocomplete 作为组合框，您的需求与我配合得很好，您可以查看以下代码可能对您有所帮助：
(function( $ ) {
$.widget( "ui.combobox", {
_create: function() {
var input,
self = this,
select = this.element.hide(),
selected = select.children( ":selected" ),
value = selected.val() ? selected.text() : "",
wrapper = $( "<span>" )
.addClass( "ui-combobox" )
.insertAfter( select );
input = $( "<input>" )
.appendTo( wrapper )
.val( value )
.addClass( "ui-state-default" )
.autocomplete({
delay: 0,
minLength: 0,
source: function( request, response ) {
var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
response( select.children( "option" ).map(function() {
var text = $( this ).text();
if ( this.value && ( !request.term || matcher.test(text) ) )
return {
label: text.replace(
new RegExp(
"(?![^&;]+;)(?!<[^<>]*)(" +
$.ui.autocomplete.escapeRegex(request.term) +
")(?![^<>]*>)(?![^&;]+;)", "gi"
), "<strong>$1</strong>" ),
value: text,
option: this
};
}) );
},
select: function( event, ui ) {
ui.item.option.selected = true;
self._trigger( "selected", event, {
item: ui.item.option
});
},
change: function( event, ui ) {
if ( !ui.item ) {
var matcher = new RegExp( "^" + $.ui.autocomplete.escapeRegex( $(this).val() ) + "$", "i" ),
valid = false;
select.children( "option" ).each(function() {
if ( $( this ).text().match( matcher ) ) {
this.selected = valid = true;
return false;
}
});
if ( !valid ) {
// remove invalid value, as it didn't match anything
$( this ).val( "" );
select.val( "" );
input.data( "autocomplete" ).term = "";
return false;
}
}
}
})
.addClass( "ui-widget ui-widget-content ui-corner-left" );
input.data( "autocomplete" )._renderItem = function( ul, item ) {
return $( "<li></li>" )
.data( "item.autocomplete", item )
.append( "<a>" + item.label + "</a>" )
.appendTo( ul );
};
$( "<a>" )
.attr( "tabIndex", -1 )
.attr( "title", "Show All Items" )
.appendTo( wrapper )
.button({
icons: {
primary: "ui-icon-triangle-1-s"
},
text: false
})
.removeClass( "ui-corner-all" )
.addClass( "ui-corner-right ui-button-icon" )
.click(function() {
// close if already visible
if ( input.autocomplete( "widget" ).is( ":visible" ) ) {
input.autocomplete( "close" );
return;
}
// work around a bug (likely same cause as #5265)
$( this ).blur();
// pass empty string as value to search for, displaying all results
input.autocomplete( "search", "" );
input.focus();
});
}
});
})( jQuery );
我认为您在以下部分中需要，但我不知道如何在您的代码中使用它：
source: function( request, response ) {
var matcher = new RegExp( $.ui.autocomplete.escapeRegex(request.term), "i" );
response( select.children( "option" ).map(function() {
var text = $( this ).text();
if ( this.value && ( !request.term || matcher.test(text) ) )
return {
label: text.replace(
new RegExp(
"(?![^&;]+;)(?!<[^<>]*)(" +
$.ui.autocomplete.escapeRegex(request.term) +
")(?![^<>]*>)(?![^&;]+;)", "gi"
), "<strong>$1</strong>" ),
value: text,
option: this
};
}) );
},