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111 lines
3.0 KiB
PHP
111 lines
3.0 KiB
PHP
<?php
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/**
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* SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
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* SPDX-FileCopyrightText: 2016 ownCloud, Inc.
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* SPDX-License-Identifier: AGPL-3.0-only
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*/
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// use OCP namespace for all classes that are considered public.
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// This means that they should be used by apps instead of the internal Nextcloud classes
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namespace OCP;
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use OCP\Files\File;
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use OCP\Files\NotFoundException;
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use OCP\Files\SimpleFS\ISimpleFile;
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/**
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* This class provides functions to render and show thumbnails and previews of files
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* @since 6.0.0
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*/
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interface IPreview {
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/**
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* @since 11.0.0
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*/
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public const MODE_FILL = 'fill';
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/**
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* @since 11.0.0
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*/
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public const MODE_COVER = 'cover';
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/**
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* In order to improve lazy loading a closure can be registered which will be
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* called in case preview providers are actually requested
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*
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* $callable has to return an instance of \OCP\Preview\IProvider
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*
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* @param string $mimeTypeRegex Regex with the mime types that are supported by this provider
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* @param \Closure $callable
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* @return void
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* @since 8.1.0
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* @see \OCP\AppFramework\Bootstrap\IRegistrationContext::registerPreviewProvider
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*
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* @deprecated 23.0.0 Register your provider via the IRegistrationContext when booting the app
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*/
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public function registerProvider($mimeTypeRegex, \Closure $callable);
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/**
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* Get all providers
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* @return array
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* @since 8.1.0
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*/
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public function getProviders();
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/**
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* Does the manager have any providers
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* @return bool
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* @since 8.1.0
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*/
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public function hasProviders();
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/**
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* Returns a preview of a file
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*
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* The cache is searched first and if nothing usable was found then a preview is
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* generated by one of the providers
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*
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* @param File $file
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* @param int $width
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* @param int $height
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* @param bool $crop
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* @param string $mode
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* @param string $mimeType To force a given mimetype for the file (files_versions needs this)
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* @return ISimpleFile
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* @throws NotFoundException
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* @throws \InvalidArgumentException if the preview would be invalid (in case the original image is invalid)
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* @since 11.0.0 - \InvalidArgumentException was added in 12.0.0
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*/
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public function getPreview(File $file, $width = -1, $height = -1, $crop = false, $mode = IPreview::MODE_FILL, $mimeType = null);
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/**
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* Returns true if the passed mime type is supported
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* @param string $mimeType
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* @return boolean
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* @since 6.0.0
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*/
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public function isMimeSupported($mimeType = '*');
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/**
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* Check if a preview can be generated for a file
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*
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* @param \OCP\Files\FileInfo $file
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* @return bool
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* @since 8.0.0
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*/
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public function isAvailable(\OCP\Files\FileInfo $file);
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/**
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* Generates previews of a file
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*
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* @param File $file
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* @param array $specifications
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* @param string $mimeType
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* @return ISimpleFile the last preview that was generated
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* @throws NotFoundException
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* @throws \InvalidArgumentException if the preview would be invalid (in case the original image is invalid)
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* @since 19.0.0
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*/
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public function generatePreviews(File $file, array $specifications, $mimeType = null);
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}
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