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if pdf-thumbnail-creation is not available, generate a single scaled-down pdf-icon

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This commit is contained in:
Ralf Becker 2015-08-27 09:30:20 +00:00
parent 3a309cee11
commit fb147edad5
1 changed files with 28 additions and 5 deletions
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33
etemplate/thumbnail.php
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@ -135,6 +135,17 @@ function read_thumbnail($src)
// Generate the destination filename and check whether the destination directory
// had been successfully created (the cache class used in gen_dstfile does that).
$stat = egw_vfs::stat(egw_vfs::parse_url($src, PHP_URL_PATH));
// if pdf-thumbnail-creation is not available, generate a single scaled-down pdf-icon
if ($stat && egw_vfs::mime_content_type($src) == 'application/pdf' && !pdf_thumbnails_available())
{
list($app, $icon) = explode('/', egw_vfs::mime_icon('application/pdf'), 2);
list(, $path) = explode($GLOBALS['egw_info']['server']['webserver_url'],
common::image($app, $icon), 2);
$src = EGW_SERVER_ROOT.$path;
$stat = false;
$maxsize = $height = $width = $minsize = $maxh = $minh = $maxw = $minw = 16;
}
$dst = gen_dstfile($stat && !empty($stat['url']) ? $stat['url'] : $src, $maxsize, $height, $width, $minsize);
$dst_dir = dirname($dst);
if(file_exists($dst_dir))
@ -290,6 +301,8 @@ function gd_image_load($file,$maxw,$maxh)
{
// Get mime type
list($type, $image_type) = explode('/', egw_vfs::mime_content_type($file));
// if $file is not from vfs, use mime_magic::filename2mime to get mime-type from extension
if (!$type) list($type, $image_type) = explode('/', mime_magic::filename2mime($file));
// Call the according gd constructor depending on the file type
if($type == 'image')
@ -342,6 +355,7 @@ function gd_image_load($file,$maxw,$maxh)
$thumb = $img_dst;
}
$mime = egw_vfs::mime_content_type($file);
$tag_image = null;
corner_tag($thumb, $tag_image, $mime);
imagedestroy($tag_image);
}
@ -363,7 +377,7 @@ function gd_image_load($file,$maxw,$maxh)
*/
function get_opendocument_thumbnail($file)
{
list(, $file_type) = $mimetype = explode('/', egw_vfs::mime_content_type($file));
$mimetype = explode('/', egw_vfs::mime_content_type($file));
// Image is already there, but we can't access them directly through VFS
$ext = $mimetype == 'application/vnd.oasis.opendocument.text' ? '.odt' : '.ods';
@ -379,7 +393,7 @@ function get_opendocument_thumbnail($file)
if($image)
{
$filter_color = array(0,0,0);
switch($file_type)
switch($mimetype[1])
{
// Type colors from LibreOffice (https://wiki.documentfoundation.org/Design/Whiteboards/LibreOffice_Initial_Icons)
case 'vnd.oasis.opendocument.text':
@ -401,6 +415,15 @@ function get_opendocument_thumbnail($file)
return $image;
}
/**
* Check if we have the necessary requirements to generate pdf thumbnails
*
* @return boolean
*/
function pdf_thumbnails_available()
{
return class_exists('Imagick');
}
/**
* Extract the thumbnail from a PDF file and apply a colored mask
* so you can tell what type it is, and so it looks a little better in larger
@ -413,7 +436,7 @@ function get_opendocument_thumbnail($file)
*/
function get_pdf_thumbnail($file)
{
if(!class_exists('Imagick')) return false;
if(!pdf_thumbnails_available()) return false;
// switch off max_excution_time, as some thumbnails take longer and
// will be startet over and over again, if they dont finish
@ -432,8 +455,8 @@ function get_pdf_thumbnail($file)
*
* Used for thumbnails of documents, so you can still see the mime type
*
* @param resource $target_image
* @param resource|null $tag_image
* @param resource& $target_image
* @param resource&|null $tag_image
* @param string|null $mime Use correct mime type icon instead of $tag_image
*/
function corner_tag(&$target_image, &$tag_image, $mime)