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Move registration of core preview providers to preview 

So the class files only have class code and don't execute code
This commit is contained in:
Joas Schilling 2014-11-27 19:40:23 +01:00
parent 05a069c101
commit fca9d32545
10 changed files with 86 additions and 132 deletions
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72
lib/private/preview.php
View File

@ -21,7 +21,7 @@ require_once 'preview/movie.php';
require_once 'preview/mp3.php';
require_once 'preview/svg.php';
require_once 'preview/txt.php';
require_once 'preview/office.php';
require_once 'preview/office-cl.php';
require_once 'preview/bitmap.php';
class Preview {
@ -744,10 +744,11 @@ class Preview {
return;
}
if (count(self::$providers) > 0) {
if (!empty(self::$providers)) {
return;
}
self::registerCoreProviders();
foreach (self::$registeredProviders as $provider) {
$class = $provider['class'];
$options = $provider['options'];
@ -759,7 +760,74 @@ class Preview {
$keys = array_map('strlen', array_keys(self::$providers));
array_multisort($keys, SORT_DESC, self::$providers);
}
protected static function registerCoreProviders() {
self::registerProvider('OC\Preview\TXT');
self::registerProvider('OC\Preview\MarkDown');
self::registerProvider('OC\Preview\Image');
self::registerProvider('OC\Preview\MP3');
// SVG, Office and Bitmap require imagick
if (extension_loaded('imagick')) {
$checkImagick = new \Imagick();
$imagickProviders = array(
'SVG' => 'OC\Preview\SVG',
'TIFF' => 'OC\Preview\TIFF',
'PDF' => 'OC\Preview\PDF',
'AI' => 'OC\Preview\Illustrator',
'PSD' => 'OC\Preview\Photoshop',
// Requires adding 'eps' => array('application/postscript', null), to lib/private/mimetypes.list.php
'EPS' => 'OC\Preview\Postscript',
);
foreach ($imagickProviders as $queryFormat => $provider) {
if (count($checkImagick->queryFormats($queryFormat)) === 1) {
self::registerProvider($provider);
}
}
if (count($checkImagick->queryFormats('PDF')) === 1) {
// Office previews are currently not supported on Windows
if (!\OC_Util::runningOnWindows() && \OC_Helper::is_function_enabled('shell_exec')) {
$officeFound = is_string(\OC::$server->getConfig()->getSystemValue('preview_libreoffice_path', null));
if (!$officeFound) {
//let's see if there is libreoffice or openoffice on this machine
$whichLibreOffice = shell_exec('command -v libreoffice');
$officeFound = !empty($whichLibreOffice);
if (!$officeFound) {
$whichOpenOffice = shell_exec('command -v openoffice');
$officeFound = !empty($whichOpenOffice);
}
}
if ($officeFound) {
self::registerProvider('OC\Preview\MSOfficeDoc');
self::registerProvider('OC\Preview\MSOffice2003');
self::registerProvider('OC\Preview\MSOffice2007');
self::registerProvider('OC\Preview\OpenDocument');
self::registerProvider('OC\Preview\StarOffice');
}
}
}
}
// Video requires avconv or ffmpeg and is therefor
// currently not supported on Windows.
if (!\OC_Util::runningOnWindows()) {
$avconvBinary = \OC_Helper::findBinaryPath('avconv');
$ffmpegBinary = ($avconvBinary) ? null : \OC_Helper::findBinaryPath('ffmpeg');
if ($avconvBinary || $ffmpegBinary) {
// FIXME // a bit hacky but didn't want to use subclasses
\OC\Preview\Movie::$avconvBinary = $avconvBinary;
\OC\Preview\Movie::$ffmpegBinary = $ffmpegBinary;
self::registerProvider('OC\Preview\Movie');
}
}
}
/**

34
lib/private/preview/bitmap.php
View File

@ -9,10 +9,6 @@ namespace OC\Preview;
use Imagick;
if (extension_loaded('imagick')) {
$checkImagick = new Imagick();
class Bitmap extends Provider {
public function getMimeType() {
@ -23,7 +19,7 @@ if (extension_loaded('imagick')) {
$tmpPath = $fileview->toTmpFile($path);
//create imagick object from bitmap or vector file
try{
try {
// Layer 0 contains either the bitmap or
// a flat representation of all vector layers
$bp = new Imagick($tmpPath . '[0]');
@ -41,11 +37,8 @@ if (extension_loaded('imagick')) {
//check if image object is valid
return $image->valid() ? $image : false;
}
}
if(count($checkImagick->queryFormats('PDF')) === 1) {
//.pdf
class PDF extends Bitmap {
@ -55,11 +48,6 @@ if (extension_loaded('imagick')) {
}
\OC\Preview::registerProvider('OC\Preview\PDF');
}
if(count($checkImagick->queryFormats('TIFF')) === 1) {
//.tiff
class TIFF extends Bitmap {
@ -69,11 +57,6 @@ if (extension_loaded('imagick')) {
}
\OC\Preview::registerProvider('OC\Preview\TIFF');
}
if(count($checkImagick->queryFormats('AI')) === 1) {
//.ai
class Illustrator extends Bitmap {
@ -83,12 +66,6 @@ if (extension_loaded('imagick')) {
}
\OC\Preview::registerProvider('OC\Preview\Illustrator');
}
// Requires adding 'eps' => array('application/postscript', null), to lib/private/mimetypes.list.php
if(count($checkImagick->queryFormats('EPS')) === 1) {
//.eps
class Postscript extends Bitmap {
@ -98,11 +75,6 @@ if (extension_loaded('imagick')) {
}
\OC\Preview::registerProvider('OC\Preview\Postscript');
}
if(count($checkImagick->queryFormats('PSD')) === 1) {
//.psd
class Photoshop extends Bitmap {
@ -111,7 +83,3 @@ if (extension_loaded('imagick')) {
}
}
\OC\Preview::registerProvider('OC\Preview\Photoshop');
}
}

2
lib/private/preview/image.php
View File

@ -35,5 +35,3 @@ class Image extends Provider {
}
}
\OC\Preview::registerProvider('OC\Preview\Image');

16
lib/private/preview/movie.php
View File

@ -8,13 +8,6 @@
*/
namespace OC\Preview;
// movie preview is currently not supported on Windows
if (!\OC_Util::runningOnWindows()) {
$avconvBinary = \OC_Helper::findBinaryPath('avconv');
$ffmpegBinary = ($avconvBinary) ? null : \OC_Helper::findBinaryPath('ffmpeg');
if ($avconvBinary || $ffmpegBinary) {
class Movie extends Provider {
public static $avconvBinary;
public static $ffmpegBinary;
@ -95,12 +88,3 @@ if (!\OC_Util::runningOnWindows()) {
return false;
}
}
// a bit hacky but didn't want to use subclasses
Movie::$avconvBinary = $avconvBinary;
Movie::$ffmpegBinary = $ffmpegBinary;
\OC\Preview::registerProvider('OC\Preview\Movie');
}
}

2
lib/private/preview/mp3.php
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@ -44,5 +44,3 @@ class MP3 extends Provider {
}
}
\OC\Preview::registerProvider('OC\Preview\MP3');

14
lib/private/preview/office-cl.php
View File

@ -7,9 +7,6 @@
*/
namespace OC\Preview;
// office preview is currently not supported on Windows
if (!\OC_Util::runningOnWindows()) {
//we need imagick to convert
class Office extends Provider {
@ -90,8 +87,6 @@ if (!\OC_Util::runningOnWindows()) {
}
\OC\Preview::registerProvider('OC\Preview\MSOfficeDoc');
//.docm, .dotm, .xls(m), .xlt(m), .xla(m), .ppt(m), .pot(m), .pps(m), .ppa(m)
class MSOffice2003 extends Office {
@ -101,8 +96,6 @@ if (!\OC_Util::runningOnWindows()) {
}
\OC\Preview::registerProvider('OC\Preview\MSOffice2003');
//.docx, .dotx, .xlsx, .xltx, .pptx, .potx, .ppsx
class MSOffice2007 extends Office {
@ -112,8 +105,6 @@ if (!\OC_Util::runningOnWindows()) {
}
\OC\Preview::registerProvider('OC\Preview\MSOffice2007');
//.odt, .ott, .oth, .odm, .odg, .otg, .odp, .otp, .ods, .ots, .odc, .odf, .odb, .odi, .oxt
class OpenDocument extends Office {
@ -123,8 +114,6 @@ if (!\OC_Util::runningOnWindows()) {
}
\OC\Preview::registerProvider('OC\Preview\OpenDocument');
//.sxw, .stw, .sxc, .stc, .sxd, .std, .sxi, .sti, .sxg, .sxm
class StarOffice extends Office {
@ -133,6 +122,3 @@ if (!\OC_Util::runningOnWindows()) {
}
}
\OC\Preview::registerProvider('OC\Preview\StarOffice');
}

28
lib/private/preview/office.php
View File

@ -1,28 +0,0 @@
<?php
/**
* Copyright (c) 2013 Georg Ehrke georg@ownCloud.com
* This file is licensed under the Affero General Public License version 3 or
* later.
* See the COPYING-README file.
*/
//both, libreoffice backend and php fallback, need imagick
if (extension_loaded('imagick')) {
$checkImagick = new Imagick();
if(count($checkImagick->queryFormats('PDF')) === 1) {
$isShellExecEnabled = \OC_Helper::is_function_enabled('shell_exec');
// LibreOffice preview is currently not supported on Windows
if (!\OC_Util::runningOnWindows()) {
$whichLibreOffice = ($isShellExecEnabled ? shell_exec('command -v libreoffice') : '');
$isLibreOfficeAvailable = !empty($whichLibreOffice);
$whichOpenOffice = ($isShellExecEnabled ? shell_exec('command -v openoffice') : '');
$isOpenOfficeAvailable = !empty($whichOpenOffice);
//let's see if there is libreoffice or openoffice on this machine
if($isShellExecEnabled && ($isLibreOfficeAvailable || $isOpenOfficeAvailable || is_string(\OC_Config::getValue('preview_libreoffice_path', null)))) {
require_once('office-cl.php');
}
}
}
}

10
lib/private/preview/provider.php
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@ -5,18 +5,21 @@ abstract class Provider {
private $options;
public function __construct($options) {
$this->options=$options;
$this->options = $options;
}
/**
* @return string Regex with the mimetypes that are supported by this provider
*/
abstract public function getMimeType();
/**
* Check if a preview can be generated for $path
*
* @param string $path
* @param \OC\Files\FileInfo $file
* @return bool
*/
public function isAvailable($path) {
public function isAvailable($file) {
return true;
}
@ -32,5 +35,4 @@ abstract class Provider {
* OC_Image object of the preview
*/
abstract public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview);
}

11
lib/private/preview/svg.php
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@ -9,12 +9,6 @@ namespace OC\Preview;
use Imagick;
if (extension_loaded('imagick')) {
$checkImagick = new Imagick();
if(count($checkImagick->queryFormats('SVG')) === 1) {
class SVG extends Provider {
public function getMimeType() {
@ -50,9 +44,4 @@ if (extension_loaded('imagick')) {
//check if image object is valid
return $image->valid() ? $image : false;
}
}
\OC\Preview::registerProvider('OC\Preview\SVG');
}
}

21
lib/private/preview/txt.php
View File

@ -8,28 +8,22 @@
namespace OC\Preview;
class TXT extends Provider {
/**
* {@inheritDoc}
*/
public function getMimeType() {
return '/text\/plain/';
}
/**
* Check if a preview can be generated for $path
*
* @param \OC\Files\FileInfo $file
* @return bool
* {@inheritDoc}
*/
public function isAvailable($file) {
return $file->getSize() > 5;
}
/**
* @param string $path
* @param int $maxX
* @param int $maxY
* @param boolean $scalingup
* @param \OC\Files\View $fileview
* @return bool|\OC_Image
* {@inheritDoc}
*/
public function getThumbnail($path, $maxX, $maxY, $scalingup, $fileview) {
@ -80,14 +74,9 @@ class TXT extends Provider {
}
}
\OC\Preview::registerProvider('OC\Preview\TXT');
class MarkDown extends TXT {
public function getMimeType() {
return '/text\/(x-)?markdown/';
}
}
\OC\Preview::registerProvider('OC\Preview\MarkDown');