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Improved animated image thumbnail freedom of choice

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Default is now to take still thumbnails of animated GIFs and then
show them as originals in an AttachmentListItem. The still frames
are mostly used with front-ends like qvitter.
This commit is contained in:
Mikael Nordfeldth 2015-01-26 16:33:39 +01:00
parent 7beec74f0c
commit 67d09532dd
3 changed files with 10 additions and 5 deletions
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8
classes/File.php
View File

@ -382,13 +382,17 @@ class File extends Managed_DataObject
*
* @return File_thumbnail
*/
public function getThumbnail($width=null, $height=null, $crop=false)
public function getThumbnail($width=null, $height=null, $crop=false, $force_still=true)
{
// Get some more information about this file through our ImageFile class
$image = ImageFile::fromFileObject($this);
if ($image->animated && is_null(common_config('thumbnail', 'animated'))) {
if ($image->animated && !common_config('thumbnail', 'animated')) {
// null means "always use file as thumbnail"
// false means you get choice between frozen frame or original when calling getThumbnail
if (is_null(common_config('thumbnail', 'animated')) || !$force_still) {
throw new UseFileAsThumbnailException($this->id);
}
}
if ($width === null) {
$width = common_config('thumbnail', 'width');

3
lib/attachmentlistitem.php
View File

@ -113,7 +113,8 @@ class AttachmentListItem extends Widget
case 'image/jpg':
case 'image/jpeg':
try {
$thumb = $this->attachment->getThumbnail();
// Tell getThumbnail that we can show an animated image if it has one (4th arg, "force_still")
$thumb = $this->attachment->getThumbnail(null, null, false, false);
$this->out->element('img', array('class'=>'u-photo', 'src' => $thumb->getUrl(), 'alt' => ''));
} catch (UseFileAsThumbnailException $e) {
$this->out->element('img', array('class'=>'u-photo', 'src' => $e->file->getUrl(), 'alt' => $e->file->title));

2
lib/default.php
View File

@ -258,7 +258,7 @@ $default =
'maxsize' => 1000, // thumbs with an edge larger than this will not be generated
'width' => 450,
'height' => 600,
'animated' => null), // null="UseFileAsThumbnail", false="take still image". true requires ImageMagickPlugin
'animated' => false), // null="UseFileAsThumbnail", false="can use still frame". true requires ImageMagickPlugin
'application' =>
array('desclimit' => null),
'group' =>