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[CORE][ImageEncoder] Add width and height back in attachment entity and allow for differently sized thumbs

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The strategy adopted involves predicting the thumb size as we did in v2 before having vips resize
This commit is contained in:
Diogo Peralta Cordeiro 2021-05-01 22:48:44 +01:00 committed by Hugo Sales
parent 1c9f807595
commit 4fcccb1d1c
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GPG Key ID: 7D0C7EAFC9D835A0
3 changed files with 139 additions and 35 deletions
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23
plugins/ImageEncoder/ImageEncoder.php
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@ -56,12 +56,18 @@ class ImageEncoder extends Plugin
/**
* Encodes the image to self::preferredType() format ensuring it's valid.
*
* @param SymfonyFile $sfile i/o
* @param null|string $mimetype out
* @param \SplFileInfo $file
* @param null|string $mimetype in/out
* @param null|string $title in/out
* @param null|int $width out
* @param null|int $height out
*
* @throws Vips\Exception
* @throws \App\Util\Exception\TemporaryFileException
*
* @return bool
*/
public function onAttachmentValidation(\SplFileInfo &$file, ?string &$mimetype, ?string &$title): bool
public function onAttachmentValidation(\SplFileInfo &$file, ?string &$mimetype, ?string &$title, ?int &$width, ?int &$height): bool
{
$original_mimetype = $mimetype;
if (GSFile::mimetypeMajor($original_mimetype) != 'image') {
@ -97,11 +103,6 @@ class ImageEncoder extends Plugin
return Event::stop;
}
public function onResizeImage(Attachment $attachment, AttachmentThumbnail $thumbnail, int $width, int $height, bool $smart_crop): bool
{
return $this->onResizeImagePath($attachment->getPath(), $thumbnail->getPath(), $width, $height, $smart_crop, $__mimetype);
}
/**
* Resizes an image. It will encode the image in the
* `self::preferredType()` format. This only applies henceforward,
@ -123,7 +124,7 @@ class ImageEncoder extends Plugin
* @return bool
*
*/
public function onResizeImagePath(string $source, string $destination, int $width, int $height, bool $smart_crop, ?string &$mimetype)
public function onResizeImagePath(string $source, string $destination, int &$width, int &$height, bool $smart_crop, ?string &$mimetype)
{
$old_limit = ini_set('memory_limit', Common::config('attachments', 'memory_limit'));
try {
@ -145,6 +146,10 @@ class ImageEncoder extends Plugin
if ($smart_crop) {
$image = $image->smartcrop($width, $height);
}
$width = $image->width;
$height = $image->height;
$image->writeToFile($destination);
unset($image);
} finally {

31
src/Entity/Attachment.php
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@ -55,6 +55,8 @@ class Attachment extends Entity
private ?int $source;
private ?int $scope;
private ?int $size;
private ?int $width;
private ?int $height;
private \DateTimeInterface $modified;
public function setId(int $id): self
@ -189,17 +191,40 @@ class Attachment extends Entity
return $this->size;
}
public function setModified(DateTimeInterface $modified): self
public function setWidth(?int $width): self
{
$this->width = $width;
return $this;
}
public function getWidth(): ?int
{
return $this->width;
}
public function setHeight(?int $height): self
{
$this->height = $height;
return $this;
}
public function getHeight(): ?int
{
return $this->height;
}
public function setModified(\DateTimeInterface $modified): self
{
$this->modified = $modified;
return $this;
}
public function getModified(): DateTimeInterface
public function getModified(): \DateTimeInterface
{
return $this->modified;
}
// }}} Autocode
const URLHASH_ALGO = 'sha256';
@ -272,6 +297,8 @@ class Attachment extends Entity
'source' => ['type' => 'int', 'default' => null, 'description' => 'Source of the Attachment (upload, TFN, embed)'],
'scope' => ['type' => 'int', 'default' => null, 'description' => 'visibility scope for this attachment'],
'size' => ['type' => 'int', 'description' => 'size of resource when available'],
'width' => ['type' => 'int', 'description' => 'width in pixels, if it can be described as such and data is available'],
'height' => ['type' => 'int', 'description' => 'height in pixels, if it can be described as such and data is available'],
'modified' => ['type' => 'timestamp', 'not null' => true, 'default' => 'CURRENT_TIMESTAMP', 'description' => 'date this record was modified'],
],
'primary key' => ['id'],

120
src/Entity/AttachmentThumbnail.php
View File

@ -27,10 +27,10 @@ use App\Core\Entity;
use App\Core\Event;
use App\Core\GSFile;
use App\Core\Log;
use App\Core\Router;
use App\Util\Common;
use App\Util\Exception\NotFoundException;
use App\Util\Exception\ServerException;
use App\Util\TemporaryFile;
use DateTimeInterface;
/**
@ -53,6 +53,7 @@ class AttachmentThumbnail extends Entity
private int $attachment_id;
private int $width;
private int $height;
private string $filename;
private \DateTimeInterface $modified;
public function setAttachmentId(int $attachment_id): self
@ -88,17 +89,29 @@ class AttachmentThumbnail extends Entity
return $this->height;
}
public function setModified(DateTimeInterface $modified): self
public function setFilename(string $filename): self
{
$this->filename = $filename;
return $this;
}
public function getFilename(): string
{
return $this->filename;
}
public function setModified(\DateTimeInterface $modified): self
{
$this->modified = $modified;
return $this;
}
public function getModified(): DateTimeInterface
public function getModified(): \DateTimeInterface
{
return $this->modified;
}
// }}} Autocode
private Attachment $attachment;
@ -117,19 +130,27 @@ class AttachmentThumbnail extends Entity
}
}
public static function getOrCreate(Attachment $attachment, ?int $width = null, ?int $height = null, ?bool $crop = null)
public static function getOrCreate(Attachment $attachment, int $width, int $height, bool $crop)
{
try {
return Cache::get('thumb-' . $attachment->getId() . "-{$width}x{$height}",
function () use ($attachment, $width, $height) {
return DB::findOneBy('attachment_thumbnail', ['attachment_id' => $attachment->getId(), 'width' => $width, 'height' => $height]);
});
function () use ($crop, $attachment, $width, $height) {
[$predicted_width, $predicted_height] = self::predictScalingValues($attachment->getWidth(),$attachment->getHeight(), $width, $height, $crop);
return DB::findOneBy('attachment_thumbnail', ['attachment_id' => $attachment->getId(), 'width' => $predicted_width, 'height' => $predicted_height]);
});
} catch (NotFoundException $e) {
$thumbnail = self::create(['attachment_id' => $attachment->getId(), 'width' => $width, 'height' => $height, 'attachment' => $attachment]);
$event_map = ['image' => 'ResizeImage', 'video' => 'ResizeVideo'];
$ext = image_type_to_extension(IMAGETYPE_WEBP, include_dot: true);
$temp = new TemporaryFile(prefix: null, suffix: $ext);
$thumbnail = self::create(['attachment_id' => $attachment->getId()]);
$event_map = ['image' => 'ResizeImagePath', 'video' => 'ResizeVideoPath'];
$major_mime = GSFile::mimetypeMajor($attachment->getMimetype());
if (in_array($major_mime, array_keys($event_map))) {
Event::handle($event_map[$major_mime], [$attachment, $thumbnail, $width, $height, $crop]);
Event::handle($event_map[$major_mime], [$attachment->getPath(), $temp->getRealPath(), &$width, &$height, $crop, &$mimetype]);
$thumbnail->setWidth($width);
$thumbnail->setHeight($height);
$filename = "{$width}x{$height}{$ext}-" . $attachment->getFileHash();
$temp->commit(Common::config('thumbnail', 'dir') . $filename);
$thumbnail->setFilename($filename);
DB::persist($thumbnail);
DB::flush();
return $thumbnail;
@ -140,13 +161,6 @@ class AttachmentThumbnail extends Entity
}
}
public function getFilename()
{
// TODO only for images
$ext = image_type_to_extension(IMAGETYPE_WEBP, include_dot: true);
return $this->getAttachment()->getFileHash() . "-{$this->width}x{$this->height}{$ext}";
}
public function getPath()
{
return Common::config('thumbnail', 'dir') . $this->getFilename();
@ -164,8 +178,8 @@ class AttachmentThumbnail extends Entity
{
$attrs = [
'height' => $this->getHeight(),
'width' => $this->getWidth(),
'src' => $this->getUrl(),
'width' => $this->getWidth(),
'src' => $this->getUrl(),
];
return $overwrite ? array_merge($orig, $attrs) : array_merge($attrs, $orig);
}
@ -187,18 +201,76 @@ class AttachmentThumbnail extends Entity
}
}
/**
* Gets scaling values for images of various types. Cropping can be enabled.
*
* Values will scale _up_ to fit max values if cropping is enabled!
* With cropping disabled, the max value of each axis will be respected.
*
* @param $width int Original width
* @param $height int Original height
* @param $maxW int Resulting max width
* @param $maxH int Resulting max height
* @param $crop bool Crop to the size (not preserving aspect ratio)
*
* @return array [predicted width, predicted height]
*/
public static function predictScalingValues(
int $width,
int $height,
int $maxW,
int $maxH,
bool $crop
): array
{
// Cropping data (for original image size). Default values, 0 and null,
// imply no cropping and with preserved aspect ratio (per axis).
$cx = 0; // crop x
$cy = 0; // crop y
$cw = null; // crop area width
$ch = null; // crop area height
if ($crop) {
$s_ar = $width / $height;
$t_ar = $maxW / $maxH;
$rw = $maxW;
$rh = $maxH;
// Source aspect ratio differs from target, recalculate crop points!
if ($s_ar > $t_ar) {
$cx = floor($width / 2 - $height * $t_ar / 2);
$cw = ceil($height * $t_ar);
} elseif ($s_ar < $t_ar) {
$cy = floor($height / 2 - $width / $t_ar / 2);
$ch = ceil($width / $t_ar);
}
} else {
$rw = $maxW;
$rh = ceil($height * $rw / $width);
// Scaling caused too large height, decrease to max accepted value
if ($rh > $maxH) {
$rh = $maxH;
$rw = ceil($width * $rh / $height);
}
}
return [(int)$rw, (int)$rh];
}
public static function schemaDef(): array
{
return [
'name' => 'attachment_thumbnail',
'name' => 'attachment_thumbnail',
'fields' => [
'attachment_id' => ['type' => 'int', 'foreign key' => true, 'target' => 'Attachment.id', 'multiplicity' => 'one to one', 'not null' => true, 'description' => 'thumbnail for what attachment'],
'width' => ['type' => 'int', 'not null' => true, 'description' => 'width of thumbnail'],
'height' => ['type' => 'int', 'not null' => true, 'description' => 'height of thumbnail'],
'modified' => ['type' => 'timestamp', 'not null' => true, 'default' => 'CURRENT_TIMESTAMP', 'description' => 'date this record was modified'],
'width' => ['type' => 'int', 'not null' => true, 'description' => 'width of thumbnail'],
'height' => ['type' => 'int', 'not null' => true, 'description' => 'height of thumbnail'],
'filename' => ['type' => 'varchar', 'length' => 191, 'not null' => true, 'description' => 'thubmnail filename'],
'modified' => ['type' => 'timestamp', 'not null' => true, 'default' => 'CURRENT_TIMESTAMP', 'description' => 'date this record was modified'],
],
'primary key' => ['attachment_id', 'width', 'height'],
'indexes' => [
'indexes' => [
'attachment_thumbnail_attachment_id_idx' => ['attachment_id'],
],
];