MediaWiki master
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JPEG specific handler. More...
Inherits ExifBitmapHandler.
Public Member Functions | ||||||||||
getSizeAndMetadata ( $state, $filename) | ||||||||||
Get image size information and metadata array. | ||||||||||
makeParamString ( $params) | ||||||||||
Merge a parameter array into a string appropriate for inclusion in filenames.
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normaliseParams ( $image, &$params) | ||||||||||
parseParamString ( $str) | ||||||||||
Parse a param string made with makeParamString back into an array.
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rotate ( $file, $params) | ||||||||||
sanitizeParamsForBucketing ( $params) | ||||||||||
Returns a normalised params array for which parameters have been cleaned up for bucketing purposes.
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supportsBucketing () | ||||||||||
Returns whether or not this handler supports the chained generation of thumbnails according to buckets. | ||||||||||
swapICCProfile ( $filepath, array $colorSpaces, array $oldProfileStrings, $profileFilepath) | ||||||||||
Swaps an embedded ICC profile for another, if found. | ||||||||||
validateParam ( $name, $value) | ||||||||||
Validate a thumbnail parameter at parse time.Return true to accept the parameter, and false to reject it. If you return false, the parser will do something quiet and forgiving.
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Public Member Functions inherited from ExifBitmapHandler | ||||||||||
convertMetadataVersion ( $metadata, $version=1) | ||||||||||
Convert metadata version. | ||||||||||
formatMetadata ( $image, $context=false) | ||||||||||
getCommonMetaArray (File $file) | ||||||||||
Get an array of standard (FormatMetadata type) metadata values. | ||||||||||
getMetadataType ( $image) | ||||||||||
Get a string describing the type of metadata, for display purposes. | ||||||||||
getRotation ( $file) | ||||||||||
On supporting image formats, try to read out the low-level orientation of the file and return the angle that the file needs to be rotated to be viewed. | ||||||||||
isFileMetadataValid ( $image) | ||||||||||
Public Member Functions inherited from BitmapHandler | ||||||||||
autoRotateEnabled () | ||||||||||
canRotate () | ||||||||||
Returns whether the current scaler supports rotation (im and gd do) | ||||||||||
Public Member Functions inherited from TransformationalImageHandler | ||||||||||
doTransform ( $image, $dstPath, $dstUrl, $params, $flags=0) | ||||||||||
Create a thumbnail. | ||||||||||
extractPreRotationDimensions ( $params, $rotation) | ||||||||||
Extracts the width/height if the image will be scaled before rotating. | ||||||||||
getMediaTransformError ( $params, $errMsg) | ||||||||||
Get a MediaTransformError with error 'thumbnail_error'. | ||||||||||
isImageAreaOkForThumbnaling ( $file, &$params) | ||||||||||
Check if the file is smaller than the maximum image area for thumbnailing. | ||||||||||
mustRender ( $file) | ||||||||||
Returns whether the file needs to be rendered. | ||||||||||
Public Member Functions inherited from ImageHandler | ||||||||||
canRender ( $file) | ||||||||||
True if the handled types can be transformed.
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getDimensionsString ( $file) | ||||||||||
Shown in file history box on image description page.
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getImageArea ( $image) | ||||||||||
Function that returns the number of pixels to be thumbnailed. | ||||||||||
getImageSize ( $image, $path) | ||||||||||
Get an image size array like that returned by getimagesize(), or false if it can't be determined. | ||||||||||
getLongDesc ( $file) | ||||||||||
Long description.Shown under image on image description page surrounded by ().
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getParamMap () | ||||||||||
Get an associative array mapping magic word IDs to parameter names.Will be used by the parser to identify parameters.
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getScriptedTransform ( $image, $script, $params) | ||||||||||
Get a MediaTransformOutput object representing an alternate of the transformed output which will call an intermediary thumbnail assist script.Used when the repository has a thumbnailScriptUrl option configured.Return false to fall back to the regular getTransform().
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getShortDesc ( $file) | ||||||||||
Short description.Shown on Special:Search results.
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Public Member Functions inherited from MediaHandler | ||||||||||
canAnimateThumbnail ( $file) | ||||||||||
If the material is animated, we can animate the thumbnail. | ||||||||||
filterThumbnailPurgeList (&$files, $options) | ||||||||||
Remove files from the purge list. | ||||||||||
getAvailableLanguages (File $file) | ||||||||||
Get list of languages file can be viewed in. | ||||||||||
getContentHeaders ( $metadata) | ||||||||||
Get useful response headers for GET/HEAD requests for a file with the given metadata. | ||||||||||
getDefaultRenderLanguage (File $file) | ||||||||||
On file types that support renderings in multiple languages, which language is used by default if unspecified. | ||||||||||
getEntireText (File $file) | ||||||||||
Get the text of the entire document. | ||||||||||
getLength ( $file) | ||||||||||
If it's an audio file, return the length of the file. | ||||||||||
getMatchedLanguage ( $userPreferredLanguage, array $availableLanguages) | ||||||||||
When overridden in a descendant class, returns a language code most suiting. | ||||||||||
getMetadata ( $image, $path) | ||||||||||
Get handler-specific metadata which will be saved in the img_metadata field. | ||||||||||
getPageDimensions (File $image, $page) | ||||||||||
Get an associative array of page dimensions Currently "width" and "height" are understood, but this might be expanded in the future. | ||||||||||
getPageText (File $image, $page) | ||||||||||
Generic getter for text layer. | ||||||||||
getSizeAndMetadataWithFallback ( $file, $path) | ||||||||||
Get the metadata array and the image size, with b/c fallback. | ||||||||||
getThumbType ( $ext, $mime, $params=null) | ||||||||||
Get the thumbnail extension and MIME type for a given source MIME type. | ||||||||||
getTransform ( $image, $dstPath, $dstUrl, $params) | ||||||||||
Get a MediaTransformOutput object representing the transformed output. | ||||||||||
getWarningConfig ( $file) | ||||||||||
Gets configuration for the file warning message. | ||||||||||
isAnimatedImage ( $file) | ||||||||||
The material is an image, and is animated. | ||||||||||
isEnabled () | ||||||||||
False if the handler is disabled for all files. | ||||||||||
isExpensiveToThumbnail ( $file) | ||||||||||
True if creating thumbnails from the file is large or otherwise resource-intensive. | ||||||||||
isMetadataValid ( $image, $metadata) | ||||||||||
Check if the metadata string is valid for this handler. | ||||||||||
isMultiPage ( $file) | ||||||||||
True if the type has multi-page capabilities. | ||||||||||
isVectorized ( $file) | ||||||||||
The material is vectorized and thus scaling is lossless. | ||||||||||
pageCount (File $file) | ||||||||||
Page count for a multi-page document, false if unsupported or unknown. | ||||||||||
parserTransformHook ( $parser, $file) | ||||||||||
Modify the parser object post-transform. | ||||||||||
removeBadFile ( $dstPath, $retval=0) | ||||||||||
Check for zero-sized thumbnails. | ||||||||||
useSplitMetadata () | ||||||||||
If this returns true, LocalFile may split metadata up and store its constituent items separately. | ||||||||||
verifyUpload ( $fileName) | ||||||||||
File validation hook called on upload. | ||||||||||
Protected Member Functions | |
getScriptParams ( $params) | |
transformImageMagick ( $image, $params) | |
Transform an image using ImageMagick.
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Protected Member Functions inherited from ExifBitmapHandler | |
applyExifRotation ( $info, $metadata) | |
getRotationForExifFromOrientation ( $orientation) | |
Given a chunk of serialized Exif metadata, return the orientation as degrees of rotation. | |
Protected Member Functions inherited from BitmapHandler | |
getScalerType ( $dstPath, $checkDstPath=true) | |
Returns which scaler type should be used. | |
hasGDSupport () | |
Whether the php-gd extension supports this type of file. | |
imageMagickSubsampling ( $pixelFormat) | |
Get ImageMagick subsampling factors for the target JPEG pixel format. | |
transformCustom ( $image, $params) | |
Transform an image using a custom command. | |
transformGd ( $image, $params) | |
Transform an image using the built in GD library. | |
transformImageMagickExt ( $image, $params) | |
Transform an image using the Imagick PHP extension. | |
Protected Member Functions inherited from TransformationalImageHandler | |
escapeMagickInput ( $path, $scene=false) | |
Escape a string for ImageMagick's input filenames. | |
escapeMagickOutput ( $path, $scene=false) | |
Escape a string for ImageMagick's output filename. | |
escapeMagickPath ( $path, $scene=false) | |
Armour a string against ImageMagick's GetPathComponent(). | |
escapeMagickProperty ( $s) | |
Escape a string for ImageMagick's property input (e.g. | |
getClientScalingThumbnailImage ( $image, $scalerParams) | |
Get a ThumbnailImage that respresents an image that will be scaled client side. | |
getMagickVersion () | |
Retrieve the version of the installed ImageMagick You can use PHPs version_compare() to use this value Value is cached for one hour. | |
getThumbnailSource ( $file, $params) | |
Get the source file for the transform. | |
Protected Member Functions inherited from MediaHandler | |
formatMetadataHelper ( $metadataArray, $context=false) | |
sorts the visible/invisible field. | |
formatTag (string $key, $vals, $context=false) | |
Override default formatting for the given metadata field. | |
hasMostDerivedMethod ( $name) | |
Check whether a method is implemented in the most derived class. | |
logErrorForExternalProcess ( $retval, $err, $cmd) | |
Log an error that occurred in an external process. | |
useLegacyMetadata () | |
If this returns true, the new method getSizeAndMetadata() will not be called. | |
visibleMetadataFields () | |
Get a list of metadata items which should be displayed when the metadata table is collapsed. | |
Additional Inherited Members | |
Static Public Member Functions inherited from BitmapHandler | |
static | imageJpegWrapper ( $dst_image, $thumbPath, $quality=null) |
Callback for transformGd when transforming jpeg images. | |
Static Public Member Functions inherited from MediaHandler | |
static | fitBoxWidth ( $boxWidth, $boxHeight, $maxHeight) |
Calculate the largest thumbnail width for a given original file size such that the thumbnail's height is at most $maxHeight. | |
static | getGeneralLongDesc ( $file) |
Used instead of getLongDesc if there is no handler registered for file. | |
static | getGeneralShortDesc ( $file) |
Used instead of getShortDesc if there is no handler registered for file. | |
static | getHandler ( $type) |
Get a MediaHandler for a given MIME type from the instance cache. | |
static | getMetadataVersion () |
Get metadata version. | |
static | getPageRangesByDimensions ( $pagesByDimensions) |
Converts a dimensions array about a potentially multipage document from an exhaustive list of ordered page numbers to a list of page ranges. | |
Public Attributes inherited from ExifBitmapHandler | |
const | BROKEN_FILE = '-1' |
Error extracting metadata. | |
const | OLD_BROKEN_FILE = '0' |
Outdated error extracting metadata. | |
Public Attributes inherited from MediaHandler | |
const | METADATA_BAD = false |
const | METADATA_COMPATIBLE = 2 |
const | METADATA_GOOD = true |
const | TRANSFORM_LATER = 1 |
Static Protected Member Functions inherited from MediaHandler | |
static | addMeta (&$array, $visibility, $type, $id, $value, $param=false) |
This is used to generate an array element for each metadata value That array is then used to generate the table of metadata values on the image page. | |
JPEG specific handler.
Inherits most stuff from BitmapHandler, just here to do the metadata handler differently.
Metadata stuff common to Jpeg and built-in Tiff (not PagedTiffHandler) is in ExifBitmapHandler.
Definition at line 37 of file JpegHandler.php.
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array | $params |
Reimplemented from ImageHandler.
Definition at line 96 of file JpegHandler.php.
References $params.
JpegHandler::getSizeAndMetadata | ( | $state, | |
$path ) |
Get image size information and metadata array.
If this returns null, the caller will fall back to getImageSize() and getMetadata().
If getImageSize() or getMetadata() are implemented in the most derived class, they will be used instead of this function. To override this behaviour, override useLegacyMetadata().
MediaHandlerState | $state | An object for saving process-local state. This is normally a File object which will be passed back to other MediaHandler methods like pageCount(), if they are called in the same request. The handler can use this object to save its state. |
string | $path | The filename |
Reimplemented from ImageHandler.
Definition at line 104 of file JpegHandler.php.
References ExifBitmapHandler\applyExifRotation(), ExifBitmapHandler\BROKEN_FILE, BitmapMetadataHandler\Jpeg(), Exif\version(), and wfDebug().
JpegHandler::makeParamString | ( | $params | ) |
Merge a parameter array into a string appropriate for inclusion in filenames.
array | $params | Array of parameters that have been through normaliseParams. |
MediaTransformInvalidParametersException |
Reimplemented from BitmapHandler.
Definition at line 66 of file JpegHandler.php.
References $params.
JpegHandler::normaliseParams | ( | $image, | |
& | $params ) |
File | $image | |
array | &$params |
Reimplemented from BitmapHandler.
Definition at line 41 of file JpegHandler.php.
References $params.
JpegHandler::parseParamString | ( | $str | ) |
Parse a param string made with makeParamString back into an array.
string | $str | The parameter string without file name (e.g. 122px) |
Reimplemented from BitmapHandler.
Definition at line 75 of file JpegHandler.php.
JpegHandler::rotate | ( | $file, | |
$params ) |
File | $file | |
array | $params | Rotate parameters. 'rotation' clockwise rotation in degrees, allowed are multiples of 90 |
Reimplemented from BitmapHandler.
Definition at line 142 of file JpegHandler.php.
References $params, ExifBitmapHandler\getRotation(), and MediaHandler\logErrorForExternalProcess().
JpegHandler::sanitizeParamsForBucketing | ( | $params | ) |
Returns a normalised params array for which parameters have been cleaned up for bucketing purposes.
array | $params |
Reimplemented from ImageHandler.
Definition at line 176 of file JpegHandler.php.
References $params.
JpegHandler::supportsBucketing | ( | ) |
Returns whether or not this handler supports the chained generation of thumbnails according to buckets.
Reimplemented from MediaHandler.
Definition at line 172 of file JpegHandler.php.
JpegHandler::swapICCProfile | ( | $filepath, | |
array | $colorSpaces, | ||
array | $oldProfileStrings, | ||
$profileFilepath ) |
Swaps an embedded ICC profile for another, if found.
Depends on exiftool, no-op if not installed.
string | $filepath | File to be manipulated (will be overwritten) |
array | $colorSpaces | Only process files with this/these Color Space(s) |
array | $oldProfileStrings | Exact name(s) of color profile to look for (the one that will be replaced) |
string | $profileFilepath | ICC profile file to apply to the file |
Definition at line 243 of file JpegHandler.php.
References MediaHandler\logErrorForExternalProcess().
Referenced by transformImageMagick().
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protected |
Transform an image using ImageMagick.
Reimplemented from BitmapHandler.
Definition at line 188 of file JpegHandler.php.
References $params, and swapICCProfile().
JpegHandler::validateParam | ( | $name, | |
$value ) |
Validate a thumbnail parameter at parse time.Return true to accept the parameter, and false to reject it. If you return false, the parser will do something quiet and forgiving.
string | $name | |
mixed | $value |
Reimplemented from BitmapHandler.
Definition at line 51 of file JpegHandler.php.