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Add an interface for the preview providers

This commit is contained in:
Joas Schilling 2015-03-12 11:59:45 +01:00
parent 227ff0a9e3
commit c1f266db88
4 changed files with 50 additions and 6 deletions
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2
lib/private/preview.php
View File

@ -509,7 +509,7 @@ class Preview {
foreach ($providers as $closure) {
$provider = $closure();
if (!($provider instanceof \OC\Preview\Provider)) {
if (!($provider instanceof \OCP\Preview\IProvider)) {
continue;
}

4
lib/private/preview/provider.php
View File

@ -1,7 +1,9 @@
<?php
namespace OC\Preview;
abstract class Provider {
use OCP\Preview\IProvider;
abstract class Provider implements IProvider {
private $options;
public function __construct($options) {

9
lib/private/previewmanager.php
View File

@ -8,8 +8,9 @@
*/
namespace OC;
use OCP\image;
use OCP\Image;
use OCP\IPreview;
use OCP\Preview\IProvider;
class PreviewManager implements IPreview {
/** @var array */
@ -29,7 +30,7 @@ class PreviewManager implements IPreview {
* In order to improve lazy loading a closure can be registered which will be
* called in case preview providers are actually requested
*
* $callable has to return an instance of \OC\Preview\Provider
* $callable has to return an instance of \OCP\Preview\IProvider
*
* @param string $mimeTypeRegex Regex with the mime types that are supported by this provider
* @param \Closure $callable
@ -119,11 +120,11 @@ class PreviewManager implements IPreview {
if (preg_match($supportedMimeType, $file->getMimetype())) {
foreach ($providers as $closure) {
$provider = $closure();
if (!($provider instanceof \OC\Preview\Provider)) {
if (!($provider instanceof IProvider)) {
continue;
}
/** @var $provider \OC\Preview\Provider */
/** @var $provider IProvider */
if ($provider->isAvailable($file)) {
return true;
}

41
lib/public/preview/iprovider.php Normal file
View File

@ -0,0 +1,41 @@
<?php
/**
* ownCloud
*
* @author Joas Schilling
* @copyright 2015 Joas Schilling nickvergessen@owncloud.com
*
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
namespace OCP\Preview;
interface IProvider {
/**
* @return string Regex with the mimetypes that are supported by this provider
*/
public function getMimeType();
/**
* Check if a preview can be generated for $path
*
* @param \OCP\Files\FileInfo $file
* @return bool
*/
public function isAvailable($file);
/**
* get thumbnail for file at path $path
*
* @param string $path Path of file
* @param int $maxX The maximum X size of the thumbnail. It can be smaller depending on the shape of the image
* @param int $maxY The maximum Y size of the thumbnail. It can be smaller depending on the shape of the image
* @param bool $scalingup Disable/Enable upscaling of previews
* @param \OC\Files\View $fileview fileview object of user folder
* @return mixed
* false if no preview was generated
* OC_Image object of the preview
*/
public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview);
}