class.forms.php

class SLAField extends ChoiceField {
    function getWidget($widgetClass=false) {
        $widget = parent::getWidget($widgetClass);
        if ($widget->value instanceof SLA)
            $widget->value = $widget->value->getId();
        return $widget;
    }

    function hasIdValue() {
        return true;
    }

    function getChoices($verbose=false) {
        global $cfg;

        $choices = array();
        if (($depts = SLA::getSLAs()))
            foreach ($depts as $id => $name)
                $choices[$id] = $name;

        return $choices;
    }

    function parse($id) {
        return $this->to_php(null, $id);
    }

    function to_php($value, $id=false) {
        if (is_array($id)) {
            reset($id);
            $id = key($id);
        }
        return $id;
    }

    function to_database($sla) {
        return ($sla instanceof SLA)
            ? array($sla->getName(), $sla->getId())
            : $sla;
    }

    function toString($value) {
        return (string) $value;
    }

    function searchable($value) {
        return null;
    }

    function getConfigurationOptions() {
        return array(
            'prompt' => new TextboxField(array(
                'id'=>2, 'label'=>__('Prompt'), 'required'=>false, 'default'=>'',
                'hint'=>__('Leading text shown before a value is selected'),
                'configuration'=>array('size'=>40, 'length'=>40),
            )),
        );
    }
}

class AssigneeField extends ChoiceField {
    var $_choices = null;
    var $_criteria = null;

    function getWidget($widgetClass=false) {
        $widget = parent::getWidget($widgetClass);
        if (is_object($widget->value))
            $widget->value = $widget->value->getId();
        return $widget;
    }

    function getCriteria() {

        if (!isset($this->_criteria)) {
            $this->_criteria = array('available' => true);
            if (($c=parent::getCriteria()))
                $this->_criteria = array_merge($this->_criteria, $c);
        }

        return $this->_criteria;
    }

    function hasIdValue() {
        return true;
    }

    function setChoices($choices) {
        $this->_choices = $choices;
    }

    function getChoices($verbose=false) {
        global $cfg;

        if (!isset($this->_choices)) {
            $config = $this->getConfiguration();
            $choices = array(
                    __('Agents') => new ArrayObject(),
                    __('Teams') => new ArrayObject());
            $A = current($choices);
            $criteria = $this->getCriteria();
            $agents = array();
            if (($dept=$config['dept']) && $dept->assignMembersOnly()) {
                if (($members = $dept->getAvailableMembers()))
                    foreach ($members as $member)
                        $agents[$member->getId()] = $member;
            } else {
                $agents = Staff::getStaffMembers($criteria);
            }

            foreach ($agents as $id => $name)
                $A['s'.$id] = $name;

            next($choices);
            $T = current($choices);
            if (($teams = Team::getActiveTeams()))
                foreach ($teams as $id => $name)
                    $T['t'.$id] = $name;

            $this->_choices = $choices;
        }

        return $this->_choices;
    }

    function getValue() {

        if (($value = parent::getValue()) && ($id=$this->getClean()))
           return $value[$id];
    }


    function parse($id) {
        return $this->to_php(null, $id);
    }

    function to_php($value, $id=false) {
        $type = '';
        if (is_array($id)) {
            reset($id);
            $id = key($id);
            $type = $id[0];
            $id = substr($id, 1);
        }

        switch ($type) {
        case 's':
            return Staff::lookup($id);
        case 't':
            return Team::lookup($id);
        case 'd':
            return Dept::lookup($id);
        default:
            return $id;
        }
    }


    function to_database($value) {
        return (is_object($value))
            ? array($value->getName(), $value->getId())
            : $value;
    }

    function toString($value) {
        return (string) $value;
    }

    function searchable($value) {
        return null;
    }

    function getConfigurationOptions() {
        return array(
            'prompt' => new TextboxField(array(
                'id'=>2, 'label'=>__('Prompt'), 'required'=>false, 'default'=>'',
                'hint'=>__('Leading text shown before a value is selected'),
                'configuration'=>array('size'=>40, 'length'=>40),
            )),
        );
    }
}
FormField::addFieldTypes(/*@trans*/ 'Dynamic Fields', function() {
    return array(
        'assignee' => array(__('Assignee'), 'AssigneeField'),
    );
});


class TicketStateField extends ChoiceField {

    static $_states = array(
            'open' => array(
                'name' => /* @trans, @context "ticket state name" */ 'Open',
                'verb' => /* @trans, @context "ticket state action" */ 'Open'
                ),
            'closed' => array(
                'name' => /* @trans, @context "ticket state name" */ 'Closed',
                'verb' => /* @trans, @context "ticket state action" */ 'Close'
                )
            );
    // Private states
    static $_privatestates = array(
            'archived' => array(
                'name' => /* @trans, @context "ticket state name" */ 'Archived',
                'verb' => /* @trans, @context "ticket state action" */ 'Archive'
                ),
            'deleted'  => array(
                'name' => /* @trans, @context "ticket state name" */ 'Deleted',
                'verb' => /* @trans, @context "ticket state action" */ 'Delete'
                )
            );

    function hasIdValue() {
        return true;
    }

    function isChangeable() {
        return false;
    }

    function getChoices($verbose=false) {
        static $_choices;

        $states = static::$_states;
        if ($this->options['private_too'])
            $states += static::$_privatestates;

        if (!isset($_choices)) {
            // Translate and cache the choices
            foreach ($states as $k => $v)
                $_choices[$k] =  _P('ticket state name', $v['name']);

            $this->ht['default'] =  '';
        }

        return $_choices;
    }

    function getChoice($state) {

        if ($state && is_array($state))
            $state = key($state);

        if (isset(static::$_states[$state]))
            return _P('ticket state name', static::$_states[$state]['name']);

        if (isset(static::$_privatestates[$state]))
            return _P('ticket state name', static::$_privatestates[$state]['name']);

        return $state;
    }

    function getConfigurationOptions() {
        return array(
            'prompt' => new TextboxField(array(
                'id'=>2, 'label'=> __('Prompt'), 'required'=>false, 'default'=>'',
                'hint'=> __('Leading text shown before a value is selected'),
                'configuration'=>array('size'=>40, 'length'=>40),
            )),
        );
    }

    static function getVerb($state) {

        if (isset(static::$_states[$state]))
            return _P('ticket state action', static::$_states[$state]['verb']);

        if (isset(static::$_privatestates[$state]))
            return _P('ticket state action', static::$_privatestates[$state]['verb']);
    }
}
FormField::addFieldTypes('Dynamic Fields', function() {
    return array(
        'state' => array('Ticket State', 'TicketStateField', false),
    );
});

class TicketFlagField extends ChoiceField {

    // Supported flags (TODO: move to configurable custom list)
    static $_flags = array(
            'onhold' => array(
                'flag' => 1,
                'name' => 'Onhold',
                'states' => array('open'),
                ),
            'overdue' => array(
                'flag' => 2,
                'name' => 'Overdue',
                'states' => array('open'),
                ),
            'answered' => array(
                'flag' => 4,
                'name' => 'Answered',
                'states' => array('open'),
                )
            );

    var $_choices;

    function hasIdValue() {
        return true;
    }

    function isChangeable() {
        return true;
    }

    function getChoices($verbose=false) {
        $this->ht['default'] =  '';

        if (!$this->_choices) {
            foreach (static::$_flags as $k => $v)
                $this->_choices[$k] = $v['name'];
        }

        return $this->_choices;
    }

    function getConfigurationOptions() {
        return array(
            'prompt' => new TextboxField(array(
                'id'=>2, 'label'=>'Prompt', 'required'=>false, 'default'=>'',
                'hint'=>'Leading text shown before a value is selected',
                'configuration'=>array('size'=>40, 'length'=>40),
            )),
        );
    }
}

FormField::addFieldTypes('Dynamic Fields', function() {
    return array(
        'flags' => array('Ticket Flags', 'TicketFlagField', false),
    );
});

class FileUploadField extends FormField {
    static $widget = 'FileUploadWidget';

    protected $attachments;
    protected $files;

    static function getFileTypes() {
        static $filetypes;

        if (!isset($filetypes)) {
            if (function_exists('apcu_fetch')) {
                $key = md5(SECRET_SALT . GIT_VERSION . 'filetypes');
                $filetypes = apcu_fetch($key);
            }
            if (!$filetypes)
                $filetypes = YamlDataParser::load(INCLUDE_DIR . '/config/filetype.yaml');
            if ($key)
                apcu_store($key, $filetypes, 7200);
        }
        return $filetypes;
    }

    function getConfigurationOptions() {
        // Compute size selections
        $sizes = array('262144' => '— '.__('Small').' —');
        $next = 512 << 10;
        $max = strtoupper(ini_get('upload_max_filesize'));
        $limit = (int) $max;
        if (!$limit) $limit = 2 << 20; # 2M default value
        elseif (strpos($max, 'K')) $limit <<= 10;
        elseif (strpos($max, 'M')) $limit <<= 20;
        elseif (strpos($max, 'G')) $limit <<= 30;
        while ($next <= $limit) {
            // Select the closest, larger value (in case the
            // current value is between two)
            $sizes[$next] = Format::file_size($next);
            $next *= 2;
        }
        // Add extra option if top-limit in php.ini doesn't fall
        // at a power of two
        if ($next < $limit * 2)
            $sizes[$limit] = Format::file_size($limit);

        $types = array();
        foreach (self::getFileTypes() as $type=>$info) {
            $types[$type] = $info['description'];
        }

        global $cfg;
        return array(
            'size' => new ChoiceField(array(
                'label'=>__('Maximum File Size'),
                'hint'=>__('Choose maximum size of a single file uploaded to this field'),
                'default'=>$cfg->getMaxFileSize(),
                'choices'=>$sizes
            )),
            'mimetypes' => new ChoiceField(array(
                'label'=>__('Restrict by File Type'),
                'hint'=>__('Optionally, choose acceptable file types.'),
                'required'=>false,
                'choices'=>$types,
                'configuration'=>array('multiselect'=>true,'prompt'=>__('No restrictions'))
            )),
            'extensions' => new TextareaField(array(
                'label'=>__('Additional File Type Filters'),
                'hint'=>__('Optionally, enter comma-separated list of additional file types, by extension. (e.g .doc, .pdf).'),
                'configuration'=>array('html'=>false, 'rows'=>2),
            )),
            'max' => new TextboxField(array(
                'label'=>__('Maximum Files'),
                'hint'=>__('Users cannot upload more than this many files.'),
                'default'=>false,
                'required'=>false,
                'validator'=>'number',
                'configuration'=>array('size'=>8, 'length'=>4, 'placeholder'=>__('No limit')),
            ))
        );
    }

    /**
     * Called from the ajax handler for async uploads via web clients.
     */
    function ajaxUpload($bypass=false) {
        $config = $this->getConfiguration();

        $files = AttachmentFile::format($_FILES['upload'],
            // For numeric fields assume configuration exists
            !is_numeric($this->get('id')));
        if (count($files) != 1)
            Http::response(400, 'Send one file at a time');
        $file = array_shift($files);
        $file['name'] = urldecode($file['name']);

        if (!$this->isValidFile($file))
            Http::response(413, 'Invalid File');

        if (!$bypass && !$this->isValidFileType($file['name'], $file['type']))
            Http::response(415, 'File type is not allowed');

        $config = $this->getConfiguration();
        if (!$bypass && $file['size'] > $config['size'])
            Http::response(413, 'File is too large');

        if (!($F = AttachmentFile::upload($file)))
            Http::response(500, 'Unable to store file: '. $file['error']);

        $id = $F->getId();

        // This file is allowed for attachment in this session
        $_SESSION[':uploadedFiles'][$id] = $F->getName();

        return $id;
    }

    /**
     * Called from FileUploadWidget::getValue() when manual upload is used
     * for browsers which do not support the HTML5 way of uploading async.
     */
    function uploadFile($file) {
        if (!$this->isValidFileType($file['name'], $file['type']))
            throw new FileUploadError(__('File type is not allowed'));

        if (!$this->isValidFile($file))
             throw new FileUploadError(__('Invalid File'));

        $config = $this->getConfiguration();
        if ($file['size'] > $config['size'])
            throw new FileUploadError(__('File size is too large'));

        return AttachmentFile::upload($file);
    }

    /**
     * Called from API and email routines and such to handle attachments
     * sent other than via web upload
     */
    function uploadAttachment(&$file) {
        if (!$this->isValidFileType($file['name'], $file['type']))
            throw new FileUploadError(__('File type is not allowed'));

        if (is_callable($file['data']))
            $file['data'] = $file['data']();
        if (!isset($file['size'])) {
            // bootstrap.php include a compat version of mb_strlen
            if (extension_loaded('mbstring'))
                $file['size'] = mb_strlen($file['data'], '8bit');
            else
                $file['size'] = strlen($file['data']);
        }

        $config = $this->getConfiguration();
        if ($file['size'] > $config['size'])
            throw new FileUploadError(__('File size is too large'));

        if (!$F = AttachmentFile::create($file))
            throw new FileUploadError(__('Unable to save file'));

        return $F;
    }

    function isValidFile($file) {

        // Check invalid image hacks
        if ($file['tmp_name']
                && stripos($file['type'], 'image/') === 0
                && function_exists('exif_imagetype')
                && !exif_imagetype($file['tmp_name']))
            return false;

        return true;
    }

    function isValidFileType($name, $type=false) {
        $config = $this->getConfiguration();

        // Check MIME type - file ext. shouldn't be solely trusted.
        if ($type && $config['__mimetypes']
                && in_array($type, $config['__mimetypes'], true))
            return true;

        // Return true if all file types are allowed (.*)
        if (!$config['__extensions'] || in_array('.*', $config['__extensions']))
            return true;

        $allowed = $config['__extensions'];
        $ext = strtolower(pathinfo($name, PATHINFO_EXTENSION));

        return ($ext && is_array($allowed) && in_array(".$ext", $allowed));
    }

    function getAttachments() {
        if (!isset($this->attachments) && ($a = $this->getAnswer())
            && ($e = $a->getEntry()) && ($e->get('id'))
        ) {
            $this->attachments = GenericAttachments::forIdAndType(
                // Combine the field and entry ids to make the key
                sprintf('%u', abs(crc32('E'.$this->get('id').$e->get('id')))),
                'E');
        }
        return $this->attachments ?: array();
    }

    function setAttachments(GenericAttachments $att) {
        $this->attachments = $att;
    }

    function getFiles() {
        if (!isset($this->files)) {
            $files = array();
            foreach ($this->getAttachments() as $a) {
                if ($a && ($f=$a->getFile()))
                    $files[] = $f;
            }

            foreach ($this->getClean(false) ?: array() as $key => $value)
                $files[] = array('id' => $key, 'name' => $value);

            $this->files = $files;
        }
        return $this->files;
    }

    function getConfiguration() {
        $config = parent::getConfiguration();
        $_types = self::getFileTypes();
        $mimetypes = array();
        $extensions = array();
        if (isset($config['mimetypes']) && is_array($config['mimetypes'])) {
            foreach ($config['mimetypes'] as $type=>$desc) {
                foreach ($_types[$type]['types'] as $mime=>$exts) {
                    $mimetypes[$mime] = true;
                    if (is_array($exts))
                        foreach ($exts as $ext)
                            $extensions['.'.$ext] = true;
                }
            }
        }
        if (strpos($config['extensions'], '.*') !== false)
            $config['extensions'] = '';

        if (is_string($config['extensions'])) {
            foreach (preg_split('/\s+/', str_replace(',',' ', $config['extensions'])) as $ext) {
                if (!$ext) {
                    continue;
                }
                elseif (strpos($ext, '/')) {
                    $mimetypes[$ext] = true;
                }
                else {
                    if ($ext[0] != '.')
                        $ext = '.' . $ext;

                    // Ensure that the extension is lower-cased for comparison latr
                    $ext = strtolower($ext);

                    // Add this to the MIME types list so it can be exported to
                    // the @accept attribute
                    if (!isset($extensions[$ext]))
                        $mimetypes[$ext] = true;

                    $extensions[$ext] = true;
                }
            }
            $config['__extensions'] = array_keys($extensions);
        }
        elseif (is_array($config['extensions'])) {
            $config['__extensions'] = $config['extensions'];
        }

        // 'mimetypes' is the array represented from the user interface,
        // '__mimetypes' is a complete list of supported MIME types.
        $config['__mimetypes'] = array_keys($mimetypes);
        return $config;
    }

    // When the field is saved to database, encode the ID listing as a json
    // array. Then, inspect the difference between the files actually
    // attached to this field
    function to_database($value) {
        $this->getAttachments();
        if (isset($this->attachments) && $this->attachments) {
            $this->attachments->keepOnlyFileIds($value);
        }
        return JsonDataEncoder::encode($value);
    }

    function parse($value) {
        return $value;
    }

    function to_php($value) {
        return is_array($value) ? $value : JsonDataParser::decode($value);
    }

    function display($value) {
        $links = array();
        foreach ($this->getAttachments() as $a) {
            $links[] = sprintf('<a class="no-pjax" href="%s"><i class="icon-paperclip icon-flip-horizontal"></i> %s</a>',
                Format::htmlchars($a->file->getDownloadUrl()),
                Format::htmlchars($a->getFilename()));
        }
        return implode('<br/>', $links);
    }

    function toString($value) {
        $files = array();
        foreach ($this->getFiles() as $f) {
            $files[] = $f->name;
        }
        return implode(', ', $files);
    }

    function db_cleanup($field=false) {
        if ($this->getAttachments()) {
            $this->attachments->deleteAll();
        }
    }

    function asVar($value, $id=false) {
        if (($attachments = $this->getAttachments()))
            $attachments = $attachments->all();

        return new FileFieldAttachments($attachments ?: array());
    }
    function asVarType() {
        return 'FileFieldAttachments';
    }

    function whatChanged($before, $after) {
        $B = (array) $before;
        $A = (array) $after;
        $added = array_diff($A, $B);
        $deleted = array_diff($B, $A);
        $added = Format::htmlchars(array_keys($added));
        $deleted = Format::htmlchars(array_keys($deleted));

        if ($added && $deleted) {
            $desc = sprintf(
                __('added <strong>%1$s</strong> and removed <strong>%2$s</strong>'),
                implode(', ', $added), implode(', ', $deleted));
        }
        elseif ($added) {
            $desc = sprintf(
                __('added <strong>%1$s</strong>'),
                implode(', ', $added));
        }
        elseif ($deleted) {
            $desc = sprintf(
                __('removed <strong>%1$s</strong>'),
                implode(', ', $deleted));
        }
        else {
            $desc = sprintf(
                __('changed from <strong>%1$s</strong> to <strong>%2$s</strong>'),
                $this->display($before), $this->display($after));
        }
        return $desc;
    }
}

class FileFieldAttachments {
    var $attachments;

    function __construct($attachments) {
        $this->attachments = $attachments;
    }

    function __toString() {
        $files = array();
        foreach ($this->getAttachments() as $a) {
            $files[] = $a->getFilename();
        }
        return implode(', ', $files);
    }

    function getAttachments() {
        return $this->attachments ?: array();
    }

    function getVar($tag) {
        switch ($tag) {
        case 'names':
            return $this->__toString();
        case 'files':
            throw new OOBContent(OOBContent::FILES, $this->getAttachments());
        }
    }

    static function getVarScope() {
        return array(
            'names' => __('List of file names'),
            'files' => __('Attached files'),
        );
    }
}

class ColorChoiceField extends FormField {
    static $widget = 'ColorPickerWidget';
}

class InlineFormData extends ArrayObject {
    var $_form;

    function __construct($form, array $data=array()) {
        parent::__construct($data);
        $this->_form = $form;
    }

    function getVar($tag) {
        foreach ($this->_form->getFields() as $f) {
            if ($f->get('name') == $tag)
                return $this[$f->get('id')];
        }
    }
}


class InlineFormField extends FormField {
    static $widget = 'InlineFormWidget';

    var $_iform = null;

    function validateEntry($value) {
        if (!$this->getInlineForm()->isValid()) {
            $this->_errors[] = __('Correct any errors below and try again.');
        }
    }

    function parse($value) {
        // The InlineFieldWidget returns an array of cleaned data
        return $value;
    }

    function to_database($value) {
        return JsonDataEncoder::encode($value);
    }

    function to_php($value) {
        $data = JsonDataParser::decode($value);
        // The InlineFormData helps with the variable replacer API
        return new InlineFormData($this->getInlineForm(), $data);
    }

    function display($data) {
        $form = $this->getInlineForm();
        ob_start(); ?>
        <div><?php
        foreach ($form->getFields() as $field) { ?>
            <span style="display:inline-block;padding:0 5px;vertical-align:top">
                <strong><?php echo Format::htmlchars($field->get('label')); ?></strong>
                <div><?php
                    $value = $data[$field->get('id')];
                    echo $field->display($value); ?></div>
            </span><?php
        } ?>
        </div><?php
        return ob_get_clean();
    }

    function getInlineForm($data=false) {
        $form = $this->get('form');
        if (is_array($form)) {
            $form = new SimpleForm($form, $data ?: $this->value ?: $this->getSource());
            // Ensure unique, but predictable form and field IDs
            $form->setId(sprintf('%u', crc32($this->get('name')) >> 1));
        }
        return $form;
    }
}

class InlineDynamicFormField extends FormField {
    function getInlineForm($data=false) {
        if (!isset($this->_iform) || $data) {
            $config = $this->getConfiguration();
            $this->_iform = DynamicForm::lookup($config['form']);
            if ($data)
                $this->_iform = $this->_iform->getForm($data);
        }
        return $this->_iform;
    }

    function getConfigurationOptions() {
        $forms = DynamicForm::objects()->filter(array('type'=>'G'))
            ->values_flat('id', 'title');
        $choices = array();
        foreach ($forms as $row) {
            list($id, $title) = $row;
            $choices[$id] = $title;
        }
        return array(
            'form' => new ChoiceField(array(
                'id'=>2, 'label'=>'Inline Form', 'required'=>true,
                'default'=>'', 'choices'=>$choices
            )),
        );
    }
}

class InlineFormWidget extends Widget {
    function render($mode=false) {
        $form = $this->field->getInlineForm();
        if (!$form)
            return;
        // Handle first-step edits -- load data from $this->value
        if ($form instanceof DynamicForm && !$form->getSource())
            $form = $form->getForm($this->value);
        $inc = ($mode == 'client') ? CLIENTINC_DIR : STAFFINC_DIR;
        include $inc . 'templates/inline-form.tmpl.php';
    }

    function getValue() {
        $data = $this->field->getSource();
        if (!$data)
            return null;
        $form = $this->field->getInlineForm($data);
        if (!$form)
            return null;
        return $form->getClean();
    }
}

class Widget {
    static $media = null;

    function __construct($field) {
        $this->field = $field;
        $this->name = $field->getFormName();
        $this->id = '_' . $this->name;
    }

    function parseValue() {
        $this->value = $this->getValue();
        if (!isset($this->value) && is_object($this->field->getAnswer()))
            $this->value = $this->field->getAnswer()->getValue();
        if (!isset($this->value) && isset($this->field->value))
            $this->value = $this->field->value;
    }

    function getValue() {
        $data = $this->field->getSource();
        // Search for HTML form name first
        if (isset($data[$this->name]))
            return $data[$this->name];
        elseif (isset($data[$this->field->get('name')]))
            return $data[$this->field->get('name')];
        elseif (isset($data[$this->field->get('id')]))
            return $data[$this->field->get('id')];
        return null;
    }

    /**
     * getJsValueGetter
     *
     * Used with the dependent fields feature, this function should return a
     * single javascript expression which can be used in a larger expression
     * (<> == true, where <> is the result of this function). The %s token
     * will be replaced with a jQuery variable representing this widget.
     */
    function getJsValueGetter() {
        return '%s.val()';
    }
}

class TextboxWidget extends Widget {
    static $input_type = 'text';

    function render($options=array(), $extraConfig=false) {
        $config = $this->field->getConfiguration();
        if (is_array($extraConfig)) {
            foreach ($extraConfig as $k=>$v)
                if (!isset($config[$k]) || !$config[$k])
                    $config[$k] = $v;
        }
        if (isset($config['size']))
            $size = "size=\"{$config['size']}\"";
        if (isset($config['length']) && $config['length'])
            $maxlength = "maxlength=\"{$config['length']}\"";
        if (isset($config['classes']))
            $classes = 'class="'.$config['classes'].'"';
        if (isset($config['autocomplete']))
            $autocomplete = 'autocomplete="'.($config['autocomplete']?'on':'off').'"';
        if (isset($config['autofocus']))
            $autofocus = 'autofocus';
        if (isset($config['disabled']))
            $disabled = 'disabled="disabled"';
        if (isset($config['translatable']) && $config['translatable'])
            $translatable = 'data-translate-tag="'.$config['translatable'].'"';
        $type = static::$input_type;
        $types = array(
            'email' => 'email',
            'phone' => 'tel',
        );
        if ($type == 'text' && isset($types[$config['validator']]))
            $type = $types[$config['validator']];
        $placeholder = sprintf('placeholder="%s"', $this->field->getLocal('placeholder',
            $config['placeholder']));
        ?>
        <input type="<?php echo $type; ?>"
            id="<?php echo $this->id; ?>"
            <?php echo implode(' ', array_filter(array(
                $size, $maxlength, $classes, $autocomplete, $disabled,
                $translatable, $placeholder, $autofocus))); ?>
            name="<?php echo $this->name; ?>"
            value="<?php echo Format::htmlchars($this->value); ?>"/>
        <?php
    }
}


class TextboxSelectionWidget extends TextboxWidget {
    //TODO: Support multi-input e.g comma separated inputs
    function render($options=array(), $extraConfig=array()) {

        if ($this->value && is_array($this->value))
            $this->value = current($this->value);

        parent::render($options);
    }

    function getValue() {

        $value = parent::getValue();
        if ($value && ($item=$this->field->lookupChoice((string) $value)))
            $value = $item;

        return $value;
    }
}

class PasswordWidget extends TextboxWidget {
    static $input_type = 'password';

    function render($mode=false, $extra=false) {
        $extra = array();
        if ($this->field->value) {
            $extra['placeholder'] = '••••••••••••';
        }
        return parent::render($mode, $extra);
    }

    function parseValue() {
        parent::parseValue();
        // Show empty box unless failed POST
        if ($_SERVER['REQUEST_METHOD'] != 'POST'
                || !$this->field->getForm()->isValid())
            $this->value = '';
    }
}

class TextareaWidget extends Widget {
    function render($options=array()) {
        $config = $this->field->getConfiguration();
        $class = $cols = $rows = $maxlength = "";
        $attrs = array();
        if (isset($config['rows']))
            $rows = "rows=\"{$config['rows']}\"";
        if (isset($config['cols']))
            $cols = "cols=\"{$config['cols']}\"";
        if (isset($config['length']) && $config['length'])
            $maxlength = "maxlength=\"{$config['length']}\"";
        if (isset($config['html']) && $config['html']) {
            $class = array('richtext', 'no-bar');
            $class[] = @$config['size'] ?: 'small';