listfile.php

См. документацию.

<?
 
use Bitrix\Main\UI\Viewer\ItemAttributes;
 
IncludeModuleLangFile(__FILE__);
 
class CListFile
{
    private $_list_id;
    private $_section_id;
    private $_element_id;
    private $_field_id;
    private $_file_id;
    private $_socnet_group_id;
 
    private $_file;
    private $_width = 0;
    private $_height = 0;

    private static $_counter = 0;
 
    function __construct($list_id, $section_id, $element_id, $field_id, $file_id)
    {
        $this->_list_id = intval($list_id);
        $this->_section_id = intval($section_id);
        $this->_element_id = intval($element_id);
        $this->_field_id = $field_id;
        $this->_file_id = intval($file_id);
        $this->_socnet_group_id = "";
 
        $this->_file = CFile::GetFileArray($this->_file_id);
        if(is_array($this->_file))
        {
            $this->_width = intval($this->_file['WIDTH']);
            $this->_height = intval($this->_file['HEIGHT']);
        }
    }
 
    function SetSocnetGroup($socnet_group_id)
    {
        if($socnet_group_id > 0)
            $this->_socnet_group_id = intval($socnet_group_id);
    }
 
    function GetInfoHTML($params = array())
    {
        $html = '';
 
        if(is_array($this->_file))
        {
            $intWidth = $this->_width;
            $intHeight = $this->_height;
            $img_src = '';
            $divId = '';
            if (isset($params['url_template']))
            {
                $img_src = $this->GetImgSrc(array('url_template' => $params['url_template']));
                if ($img_src)
                {
                    self::$_counter++;
                    $divId = 'lists-image-info-'.self::$_counter;
                }
            }
 
            $attributes = ItemAttributes::buildByFileData($this->_file, $img_src);
            $attributes->setTitle($this->_file['FILE_NAME']);
 
            if ($divId)
            {
                $html .= '<div id="'.$divId.'">';
            }
            else
            {
                $html .= '<div>';
            }
 
            if (isset($params['view']) && $params['view'] == 'short')
            {
                $info = $this->_file["ORIGINAL_NAME"].' (';
                if($intWidth > 0 && $intHeight > 0)
                {
                    $info .= $intWidth.'x'.$intHeight.', ';
                }
                $info .= CFile::FormatSize($this->_file['FILE_SIZE']).')';
                $html .= GetMessage('FILE_TEXT').': <span class="lists-file-preview-data" '.$attributes.'>'.htmlspecialcharsex($info).'</span>';
            }
            else
            {
                $html .= GetMessage('FILE_TEXT').': <span class="lists-file-preview-data" '.$attributes.'>'.htmlspecialcharsex($this->_file["ORIGINAL_NAME"]).'</span>';
 
                if($intWidth > 0 && $intHeight > 0)
                {
                    $html .= '<br>'.GetMessage('FILE_WIDTH').': '.$intWidth;
                    $html .= '<br>'.GetMessage('FILE_HEIGHT').': '.$intHeight;
                }
                $html .= '<br>'.GetMessage('FILE_SIZE').': '.CFile::FormatSize($this->_file['FILE_SIZE']);
            }
 
            $html .= '</div>';
        }
 
        return $html;
    }
 
    function GetInputHTML($params = array())
    {
        $input_name = $this->_field_id;
        $size = 20;
        $show_info = false;
 
        if(is_array($params))
        {
            if(isset($params['input_name']))
                $input_name = $params['input_name'];
            if(isset($params['size']))
                $size = intval($params['size']);
            if(isset($params['show_info']))
                $show_info = (bool)$params['show_info'];
        }
 
        $strReturn = ' <input name="'.htmlspecialcharsbx($input_name).'" size="'.$size.'" type="file" />';
 
        if(is_array($this->_file))
        {
            if($show_info)
            {
                $strReturn .= $this->GetInfoHTML(array(
                        'url_template' => $params['url_template'],
                        'view' => 'short',
                    ));
            }
 
            $p = mb_strpos($input_name, "[");
            if($p > 0)
                $del_name = mb_substr($input_name, 0, $p)."_del".mb_substr($input_name, $p);
            else
                $del_name = $input_name."_del";
 
            $strReturn .= '<input type="checkbox" name="'.htmlspecialcharsbx($del_name).'" value="Y" id="'.htmlspecialcharsbx($del_name).'" />';
            $strReturn .= ' <label for="'.htmlspecialcharsbx($del_name).'">'.GetMessage('FILE_DELETE').'</label><br>';
        }
 
        return $strReturn;
    }
 
    function GetImgSrc($params = array())
    {
        if(is_array($params) && isset($params['url_template']) && ($params['url_template'] <> ''))
        {
            $result = str_replace(
                array('#list_id#', '#section_id#', '#element_id#', '#field_id#', '#file_id#', '#group_id#'),
                array($this->_list_id, $this->_section_id, $this->_element_id, $this->_field_id, $this->_file_id, $this->_socnet_group_id),
                $params['url_template']
            );
            return CHTTP::urlAddParams($result, array("ncc" => "y", "download" => "y"));
        }
        elseif(is_array($this->_file))
        {
            return $this->_file['SRC'];
        }
        else
        {
            return '';
        }
 
    }
    function GetImgHtml($params = array())
    {
        $max_width = 0;
        $max_height = 0;
 
        if(is_array($params))
        {
            if(isset($params['max_width']))
                $max_width = intval($params['max_width']);
            if(isset($params['max_height']))
                $max_height = intval($params['max_height']);
        }
 
        if(is_array($this->_file))
        {
            $intWidth = $this->_width;
            $intHeight = $this->_height;
            if($intWidth > 0 && $intHeight > 0 && $max_width > 0 && $max_height > 0)
            {
                if($intWidth > $max_width || $intHeight > $max_height)
                {
                    $coeff = ($intWidth/$max_width > $intHeight/$max_height? $intWidth/$max_width : $intHeight/$max_height);
                    $intWidth = intval(roundEx($intWidth/$coeff));
                    $intHeight= intval(roundEx($intHeight/$coeff));
                }
            }
 
            $src = $this->GetImgSrc($params);
            $attributes = ItemAttributes::buildByFileData($this->_file, $src);
            $html = '<img class="lists-file-preview-data" src="'.htmlspecialcharsbx($src).'" '.$attributes.' width="'.$intWidth.'" height="'.$intHeight.'"';
            if(is_array($params) && isset($params['html_attributes']) && is_array($params['html_attributes']))
            {
                foreach($params['html_attributes'] as $name => $value)
                    if(preg_match('/^[a-zA-Z-]+$/', $name))
                        $html .= ' '.$name.'="'.htmlspecialcharsbx($value).'"';
            }
            $html .= '/>';
            return $html;
        }
        else
        {
            return '';
        }
    }
 
    function GetLinkHtml($params = array())
    {
        if(is_array($this->_file))
        {
            $src = CHTTP::urlAddParams($this->GetImgSrc($params), array("download" => "y"));
            return ' [ <a href="'.htmlspecialcharsbx($src).'" target="_self">'.$params['download_text'].'</a> ] ';
        }
        else
        {
            return '';
        }
    }
 
    function GetWidth()
    {
        return $this->_width;
    }
 
    function GetHeight()
    {
        return $this->_height;
    }
 
    function GetSize()
    {
        if(is_array($this->_file))
            return $this->_file["FILE_SIZE"];
        else
            return 0;
    }
 
    function IsImage()
    {
        return is_array($this->_file) && ($this->_width > 0) && ($this->_height > 0);
    }
}
?>