Aquí está mi solución completa (también hace algunas otras cosas):
$.fn.ajaxselect = function(options) {
var settings = {
delay: 300,
sourceData: function(term) {
return {term:term};
},
sourceUrl: null,
select: function(item) {},
html: true,
minLength: 0,
autoSelect: true,
autoFocus: true,
showOnClick: null
};
if(options) $.extend(settings, options);
if(settings.showOnClick === null) settings.showOnClick = settings.minLength === 0;
$(this).autocomplete({
source: function(request, response) {
var data = settings.sourceData.call(this.element[0], request.term);
if(data === false) {
response([]);
return;
}
$.ajax({
url: settings.sourceUrl,
dataType: 'json',
data: data,
success: function(data, textStatus, $xhr) {
response(data);
},
error: function($xhr, textStatus) {
response([]);
}
});
},
focus: function(e, ui) {
return false; // don't fill input with highlighted value
},
search: function(e, ui) {
if(settings.minLength < 0 && e.hasOwnProperty('originalEvent')) return false; // don't search on keypress if minLength < 0 (use with showOnClick)
$(this).data('lastSearch', this.value);
return true;
},
select: function(e, ui) {
if(!settings.autoSelect && e.keyCode === 9) return false; // don't select highlighted item on tab unless autoSelect is enabled
if($(this).val() === $(this).data('lastSearch')) {
if(settings.select.call(this, ui.item) !== false) {
$(this).val(ui.item.value);
}
$(this).data('selectedValue',$(this).val()).trigger('change');
}
return false;
},
open: function(e, ui) {
$(this).data('isOpen', true);
},
close: function(e, ui) {
$(this).data('isOpen', false);
},
minLength: settings.minLength,
autoFocus: settings.autoFocus,
delay: settings.delay,
html: settings.html
}).bind('change.ajaxselect', function() {
$(this).toggleClass('ajax-selected', $(this).val() === $(this).data('selectedValue'));
});
if(settings.autoSelect) {
$(this).bind('autocompletechange.ajaxselect', function(event, ui) {
if($(this).val() !== $(this).data('selectedValue') && this.value.length > 0) {
var self = this;
var data = $.extend({autoSelect:1},settings.sourceData.call(this, this.value));
$(this).addClass('.ui-autocomplete-loading');
$.ajax({
url: settings.sourceUrl,
dataType: 'json',
data: data,
success: function(data, textStatus, $xhr) {
if(data.length >= 1) {
var item = $.ui.autocomplete.prototype._normalize(data)[0];
if(settings.select.call(self, item) !== false) {
$(self).val(item.value);
}
$(self).data('selectedValue',$(self).val()).trigger('change');
}
},
complete: function($xhr, textStatus) {
$(self).removeClass('.ui-autocomplete-loading');
}
});
}
});
}
if(settings.showOnClick) {
$(this).bind('click.ajaxselect', function(e) {
if(!$(this).data('clickHandled') && !$(this).data('isOpen')) {
$(this).data('clickHandled',true);
$(this).autocomplete('search','');
} else {
$(this).data('clickHandled',false);
}
}).bind('focus.ajaxselect', function(e) {
if(!$(this).data('clickHandled') && e.hasOwnProperty('originalEvent') && $(this).val() === this.defaultValue && !$(this).data('isOpen')) {
$(this).data('clickHandled',true);
$(this).autocomplete('search','');
} else {
$(this).data('clickHandled',false);
}
})
}
return $(this);
};
Su violín se vincula a algo completamente diferente. – mVChr
Lo siento, no he guardado el tenedor ... Eso está arreglado ahora. – Pierre
Funciona, pero después de seleccionar un elemento con el mouse, se abre por segunda vez (creo que vuelve a centrarse en el elemento). – mpen