brat-client
Version:
Client from brat rapid annotation tool
244 lines (224 loc) • 7.67 kB
JavaScript
/* Adapted from http://jqueryui.com/autocomplete/#combobox */
/* and http://www.learningjquery.com/2010/06/a-jquery-ui-combobox-under-the-hood/ */
(function($) {
$.widget( "ui.combobox", {
_create: function() {
var self = this;
var select = this.element.hide(),
selected = select.children( ":selected" ),
value = selected.val() ? selected.text() : "";
var input = $( "<input />" )
.insertAfter(select)
.addClass("ui-combobox-input ui-state-default")
.focus(function() {
input.removeClass('ui-state-default');
input.autocomplete("search", "");
})
.blur(function() {
input.addClass('ui-state-default');
})
.val( value )
.keydown(function(evt) {
var text, start;
if (evt.keyCode == $.ui.keyCode.BACKSPACE
&& (start = input[0].selectionStart) > 0
&& (end = input[0].selectionEnd) != start
&& end == (text = input.val()).length) {
input.val(text = text.substring(0, start - 1));
evt.preventDefault();
return false;
}
})
.autocomplete({
delay: 0,
minLength: 0,
source: function(request, response) {
var matcher = new RegExp( "^" + $.ui.autocomplete.escapeRegex(request.term), "i" );
options = 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
};
});
response(options);
if (request.term.length && options.length) {
var text = options[0].value;
input.val(text);
input[0].selectionStart = request.term.length;
input[0].selectionEnd = text.length;
options[0].option.selected = true;
} else {
select.val('');
}
},
select: function( event, ui ) {
ui.item.option.selected = true;
self._trigger( "selected", event, {
item: ui.item.option
});
},
change: function(event, ui) {
if ( !ui.item ) {
var valid = false;
findMatch = function(matcher) {
select.children( "option" ).each(function() {
if ( this.value.match( matcher ) ) {
this.selected = valid = true;
input.val(this.value);
return false;
}
});
};
var escapedMatcher = $.ui.autocomplete.escapeRegex( $(this).val() );
findMatch(new RegExp( "^" + escapedMatcher + "$", "i" ));
if ( !valid ) {
findMatch(new RegExp( "^" + escapedMatcher, "i" ));
}
if ( !valid ) {
// remove invalid value, as it didn't match anything
$( this ).val( "" );
select.val( "" );
return false;
}
}
}
})
.addClass("ui-widget ui-widget-content ui-corner-all ui-combobox");
input.data( "ui-autocomplete" )._renderItem = function( ul, item ) {
return $( "<li></li>" )
.data( "item.autocomplete", item )
.append( "<a>" + item.label + "</a>" )
.appendTo( ul );
};
select.change(function(evt) {
input.val(select.val());
});
}
});
})(jQuery);
/*
(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, {
$( this.input ).on({
autocompleteselect: function( event, ui ) {
ui.item.option.selected = true;
$( this ).trigger( "select", event, {
item: ui.item.option
});
},
autocompletechange: this._removeIfInvalid.bind(this)
});
},
_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 );
console.log(this.input);
console.log(this.input.data('ui-autocomplete'));
this.input.data( "ui-autocomplete" ).term = ""; // TODO
},
_destroy: function() {
this.wrapper.remove();
this.element.show();
}
});
})( jQuery );
*/