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Autocomplete demo (Combobox): Split code into smaller functions.

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scottgonzalez committed Feb 19, 2013
1 parent 5546e76 commit c1d04def4220162f13b791d55c05f07ce9c6278b
Showing with 81 additions and 64 deletions.
  1. +81 −64 demos/autocomplete/combobox.html
@@ -37,79 +37,52 @@
(function( $ ) {
$.widget( "ui.combobox", {
_create: function() {
var input,
that = this,
wasOpen = false,
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().toLowerCase(),
valid = false;
select.children( "option" ).each(function() {
if ( $( this ).text().toLowerCase() === value ) {
this.selected = valid = true;
return false;
}
});
this.wrapper = $( "<span>" )
.addClass( "ui-combobox" )
.insertAfter( this.element );
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( "ui-autocomplete" ).term = "";
}
}
this._createAutocomplete();
this._createShowAllButton();
},
_createAutocomplete: function() {
var selected = this.element.children( ":selected" ),
value = selected.val() ? selected.text() : "";
input = $( "<input>" )
.appendTo( wrapper )
this.input = $( "<input>" )
.appendTo( this.wrapper )
.val( value )
.attr( "title", "" )
.addClass( "ui-state-default ui-combobox-input" )
.addClass( "ui-state-default ui-combobox-input ui-widget ui-widget-content ui-corner-left" )
.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,
value: text,
option: this
};
}) );
},
select: function( event, ui ) {
ui.item.option.selected = true;
that._trigger( "select", event, {
item: ui.item.option
});
},
change: function( event, ui ) {
if ( !ui.item ) {
removeIfInvalid( this );
}
}
source: $.proxy( this, "_source" )
})
.addClass( "ui-widget ui-widget-content ui-corner-left" );
.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 wasOpen = false;
$( "<a>" )
.attr( "tabIndex", -1 )
.attr( "title", "Show All Items" )
.tooltip()
.appendTo( wrapper )
.appendTo( this.wrapper )
.button({
icons: {
primary: "ui-icon-triangle-1-s"
@@ -124,18 +97,62 @@
.click(function() {
input.focus();
// close if already visible
// Close if already visible
if ( wasOpen ) {
return;
}
// pass empty string as value to search for, displaying all results
// 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 ) {
input.tooltip({
tooltipClass: "ui-state-highlight"
// 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.data( "ui-autocomplete" ).term = "";
},
_destroy: function() {

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