autocomplete-field.inc.php

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<?
class AutoCompleteField extends TextField
{
    public $lookupUrl = null;
    public $minChars = 1;
    public $indicator = true;
    public $indicatorUrl = '/lib/img/ajax/loading-blue.gif';
    public $updateElement = null;
    public $afterUpdateElement = null;
    
    public function __construct($name, Form &$parentForm, array $attribs = array())
    {
        $this->id = $this->name;

        if ($attribs['lookupUrl'])
        {
            $this->lookupUrl = $attribs['lookupUrl'];
            unset($attribs['lookupUrl']);
        }
        else
            throw new Exception("Expected parameter 'lookupUrl' for AutoComplete Field.");
        
        parent::__construct($name, $parentForm, $attribs);
    }

    public function drawInput()
    {
        parent::drawInput();
?>
        <span id="<?=$this->name?>_indicator" class="AjaxLoadIndicator" style="display: none"><img src="<?=$this->indicatorUrl?>" alt="Loading..." /></span> 
        <div id="<?=$this->name?>_choices" class="autocomplete"></div>
        <script>
            new Ajax.Autocompleter('<?=$this->name?>', '<?=$this->name?>_choices', '<?=$this->lookupUrl?>', {
                paramName: 'like',
                minChars: <?=$this->minChars?>,
                <? if ($this->indicator){ ?> indicator: '<?=$this->name?>_indicator', <?}?>
            });
        </script>
<?
/*
                <? if ($this->indicator)
                indicator: <?=(string)$this->indicator?>,
                updateElement: <?=(string)$this->updateElement?>,
                afterUpdateElement: <?=(string)$this->afterUpdateElement?>
*/
    }
}
?>

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