(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();
|
|
// 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 );
|
