Created
October 18, 2012 10:45
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jQuery Combobox
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(function( $ ) { | |
$.widget( "ui.combobox", { | |
_create: function() { | |
var input, | |
that = this, | |
select = this.element.hide(), | |
selected = select.children( ":selected" ), | |
value = selected.val() ? selected.text() : "", | |
wrapper = this.wrapper = $( "<span>" ) | |
.addClass( "ui-combobox" ) | |
.insertAfter( select ); | |
function removeIfInvalid(element) { | |
var value = $( element ).val(), | |
matcher = new RegExp( "^" + $.ui.autocomplete.escapeRegex( value ) + "$", "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 | |
$( element ) | |
.val( "" ) | |
.attr( "title", value + " didn't match any item" ) | |
.tooltip( "open" ); | |
select.val( "" ); | |
setTimeout(function() { | |
input.tooltip( "close" ).attr( "title", "" ); | |
}, 2500 ); | |
input.data( "autocomplete" ).term = ""; | |
return false; | |
} | |
} | |
input = $( "<input>" ) | |
.appendTo( wrapper ) | |
.val( value ) | |
.attr( "title", "" ) | |
.addClass( "ui-state-default ui-combobox-input" ) | |
.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; | |
that._trigger( "selected", event, { | |
item: ui.item.option | |
}); | |
}, | |
change: function( event, ui ) { | |
if ( !ui.item ) | |
return removeIfInvalid( this ); | |
} | |
}) | |
.addClass( "ui-widget ui-widget-content ui-corner-left" ); | |
input.data( "autocomplete" )._renderItem = function( ul, item ) { | |
return $( "<li>" ) | |
.data( "item.autocomplete", item ) | |
.append( "<a>" + item.label + "</a>" ) | |
.appendTo( ul ); | |
}; | |
$( "<a>" ) | |
.attr( "tabIndex", -1 ) | |
.attr( "title", "Show All Items" ) | |
.tooltip() | |
.appendTo( wrapper ) | |
.button({ | |
icons: { | |
primary: "ui-icon-triangle-1-s" | |
}, | |
text: false | |
}) | |
.removeClass( "ui-corner-all" ) | |
.addClass( "ui-corner-right ui-combobox-toggle" ) | |
.click(function() { | |
// close if already visible | |
if ( input.autocomplete( "widget" ).is( ":visible" ) ) { | |
input.autocomplete( "close" ); | |
removeIfInvalid( input ); | |
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(); | |
}); | |
input | |
.tooltip({ | |
position: { | |
of: this.button | |
}, | |
tooltipClass: "ui-state-highlight" | |
}); | |
}, | |
destroy: function() { | |
this.wrapper.remove(); | |
this.element.show(); | |
$.Widget.prototype.destroy.call( this ); | |
} | |
}); | |
})( jQuery ); |
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