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<?php
/**
* The IMP_MIME_Viewer_alternative class renders out messages from
* multipart/alternative content types (RFC 2046 [5.1.4]).
*
* $Horde: imp/lib/MIME/Viewer/alternative.php,v 1.45.10.10 2008/01/02 11:31:37 jan Exp $
*
* Copyright 2002-2008 The Horde Project (http://www.horde.org/)
*
* See the enclosed file COPYING for license information (GPL). If you
* did not receive this file, see http://www.fsf.org/copyleft/gpl.html.
*
* @author Michael Slusarz <slusarz@horde.org>
* @package Horde_MIME_Viewer
*/
class IMP_MIME_Viewer_alternative extends MIME_Viewer {
/**
* The content-type of the preferred part.
* Default: application/octet-stream
*
* @var string
*/
var $_contentType = 'application/octet-stream';
/**
* Render out the currently set contents.
*
* @param array $params An array with a reference to a MIME_Contents
* object.
*
* @return string The rendered text in HTML.
*/
function render($params)
{
$contents = &$params[0];
$display_id = null;
$summaryList = array();
$text = '';
/* Look for a displayable part.
* RFC 2046: We show the LAST choice that can be displayed inline. */
$partList = $this->mime_part->getParts();
foreach ($partList as $part) {
if ($contents->canDisplayInline($part)) {
$text = $contents->renderMIMEPart($part);
$this->_contentType = $part->getType();
$display_id = $part->getMIMEId();
}
}
/* Show links to alternative parts. */
if (($text === null) || (count($partList) > 1)) {
if ($text === null) {
$text = '<em>' . _("There are no alternative parts that can be displayed.") . '</em>';
}
/* Generate the list of summaries to use. */
foreach ($partList as $part) {
$id = $part->getMIMEId();
if ($id && $id != $display_id) {
$summary = $contents->partSummary($part);
/* We don't want to show the MIME ID for alt parts. */
if (!empty($summary)) {
array_splice($summary, 1, 1);
$summaryList[] = $summary;
}
}
}
/* Make sure there is at least one summary before showing the
* alternative parts. */
$alternative_display = $GLOBALS['prefs']->getValue('alternative_display');
if (!empty($summaryList) &&
!$contents->viewAsAttachment() &&
$alternative_display != 'none') {
$status_array = array();
$status = _("Alternative parts for this section:");
if ($contents->showSummaryLinks()) {
require_once 'Horde/Help.php';
$status .= ' ' . Help::link('imp', 'alternative-msg');
}
$status_array[] = $status;
$status = '<table border="0" cellspacing="1" cellpadding="1">';
foreach ($summaryList as $summary) {
$status .= '<tr valign="middle">';
foreach ($summary as $val) {
if (!empty($val)) {
$status .= "<td>$val </td>\n";
}
}
$status .= "</tr>\n";
}
$status .= '</table>';
$status_array[] = $status;
$status_msg = $contents->formatStatusMsg($status_array, Horde::img('mime/binary.png', _("Multipart/alternative"), null, $GLOBALS['registry']->getImageDir('horde')), false);
switch ($alternative_display) {
case 'above':
$text = $status_msg . $text;
break;
case 'below':
$text .= $status_msg;
break;
}
}
}
/* Remove attachment information for the displayed part if we
* can. */
if (is_callable(array($contents, 'removeAtcEntry'))) {
$contents->removeAtcEntry($this->mime_part->getMIMEId());
}
return $text;
}
/**
* Return the content-type.
*
* @return string The content-type of the message.
* Returns 'application/octet-stream' until actual
* content type of the message can be determined.
*/
function getType()
{
return $this->_contentType;
}
}
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