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August 27, 2015 17:12
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<!doctype html> | |
<html lang="en"> | |
<head> | |
<meta charset="utf-8"> | |
<title>jQuery UI Autocomplete - Combobox</title> | |
<link rel="stylesheet" href="http://code.jquery.com/ui/1.11.2/themes/smoothness/jquery-ui.css"> | |
<script src="http://code.jquery.com/jquery-1.10.2.js"></script> | |
<script src="http://code.jquery.com/ui/1.11.2/jquery-ui.js"></script> | |
<style> | |
.custom-combobox { | |
position: relative; | |
display: inline-block; | |
} | |
.custom-combobox-toggle { | |
position: absolute; | |
top: 0; | |
bottom: 0; | |
margin-left: -1px; | |
padding: 0; | |
} | |
.custom-combobox-input { | |
margin: 0; | |
padding: 5px 10px; | |
} | |
</style> | |
<script> | |
(function( $ ) { | |
$.widget( "custom.tttcombobox", { | |
_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(); | |
// Close if already visible | |
if ( wasOpen ) { | |
return; | |
} | |
// Pass empty string as value to search for, displaying all results | |
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 ) { | |
// Selected an item, nothing to do | |
if ( ui.item ) { | |
return; | |
} | |
// Search for a match (case-insensitive) | |
var value = this.input.val(), | |
valueLowerCase = value.toLowerCase(), | |
valid = false; | |
this.element.children( "option" ).each(function() { | |
if ( $( this ).text().toLowerCase() === valueLowerCase ) { | |
this.selected = valid = true; | |
return false; | |
} | |
}); | |
// Found a match, nothing to do | |
if ( valid ) { | |
return; | |
} | |
// Remove invalid value | |
this.input | |
.val( "" ) | |
.attr( "title", value + " didn't match any item" ) | |
.tooltip( "open" ); | |
this.element.val( "" ); | |
this._delay(function() { | |
this.input.tooltip( "close" ).attr( "title", "" ); | |
}, 2500 ); | |
this.input.autocomplete( "instance" ).term = ""; | |
}, | |
_destroy: function() { | |
this.wrapper.remove(); | |
this.element.show(); | |
} | |
}); | |
})( jQuery ); | |
$(function() { | |
$( "#combobox" ).tttcombobox(); | |
}); | |
</script> | |
</head> | |
<body> | |
<div class="ui-widget"> | |
<label>Your preferred programming language: </label> | |
<select id="combobox"> | |
<option value="">Select one...</option> | |
<option value="ActionScript">ActionScript</option> | |
<option value="AppleScript">AppleScript</option> | |
<option value="Asp">Asp</option> | |
<option value="BASIC">BASIC</option> | |
<option value="C">C</option> | |
<option value="C++">C++</option> | |
<option value="Clojure">Clojure</option> | |
<option value="COBOL">COBOL</option> | |
<option value="ColdFusion">ColdFusion</option> | |
<option value="Erlang">Erlang</option> | |
<option value="Fortran">Fortran</option> | |
<option value="Groovy">Groovy</option> | |
<option value="Haskell">Haskell</option> | |
<option value="Java">Java</option> | |
<option value="JavaScript">JavaScript</option> | |
<option value="Lisp">Lisp</option> | |
<option value="Perl">Perl</option> | |
<option value="PHP">PHP</option> | |
<option value="Python">Python</option> | |
<option value="Ruby">Ruby</option> | |
<option value="Scala">Scala</option> | |
<option value="Scheme">Scheme</option> | |
</select> | |
</div> | |
</body> | |
</html> |
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