MediaWiki master
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Stuff specific to JPEG and (built-in) TIFF handler. More...
Inherits BitmapHandler.
Inherited by JpegHandler, and TiffHandler.
Public Member Functions | ||||||||||
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) | ||||||||||
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) | ||||||||||
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 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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getSizeAndMetadata ( $state, $path) | ||||||||||
Get image size information and metadata array. | ||||||||||
sanitizeParamsForBucketing ( $params) | ||||||||||
Returns a normalised params array for which parameters have been cleaned up for bucketing purposes.
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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. | ||||||||||
supportsBucketing () | ||||||||||
Returns whether or not this handler supports the chained generation of thumbnails according to buckets. | ||||||||||
useSplitMetadata () | ||||||||||
If this returns true, LocalFile may split metadata up and store its constituent items separately. | ||||||||||
verifyUpload ( $fileName) | ||||||||||
File validation hook called on upload. | ||||||||||
Public Attributes | |
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 |
Protected Member Functions | |
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. | |
transformImageMagick ( $image, $params) | |
Transform an image using ImageMagick. | |
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 ImageHandler | |
getScriptParams ( $params) | |
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 ( $pagesByDimensions) |
Converts a dimensions array about a potentially multipage document from an exhaustive list of ordered page numbers to a list of page ranges. | |
Static Protected Member Functions inherited from MediaHandler | |
static | addMeta (&$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. | |
Stuff specific to JPEG and (built-in) TIFF handler.
All metadata related, since both JPEG and TIFF support Exif.
Definition at line 36 of file ExifBitmapHandler.php.
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protected |
Definition at line 166 of file ExifBitmapHandler.php.
References BitmapHandler\autoRotateEnabled(), and getRotationForExifFromOrientation().
Referenced by JpegHandler\getSizeAndMetadata(), and TiffHandler\getSizeAndMetadata().
ExifBitmapHandler::convertMetadataVersion | ( | $metadata, | |
$version = 1 ) |
Convert metadata version.
By default just returns $metadata, but can be used to allow media handlers to convert between metadata versions.
array | $metadata | Metadata array |
int | string | $version | Target version |
Reimplemented from MediaHandler.
Definition at line 43 of file ExifBitmapHandler.php.
References FormatMetadata\collapseContactInfo().
ExifBitmapHandler::formatMetadata | ( | $image, | |
$context = false ) |
File | $image | |
IContextSource | false | $context |
Reimplemented from MediaHandler.
Definition at line 143 of file ExifBitmapHandler.php.
References MediaHandler\formatMetadataHelper(), and getCommonMetaArray().
ExifBitmapHandler::getCommonMetaArray | ( | File | $file | ) |
Get an array of standard (FormatMetadata type) metadata values.
The returned data is largely the same as that from getMetadata(), but formatted in a standard, stable, handler-independent way. The idea being that some values like ImageDescription or Artist are universal and should be retrievable in a handler generic way.
The specific properties are the type of properties that can be handled by the FormatMetadata class. These values are exposed to the user via the filemetadata parser function.
Details of the response format of this function can be found at https://www.mediawiki.org/wiki/Manual:File_metadata_handling tl/dr: the response is an associative array of properties keyed by name, but the value can be complex. You probably want to call one of the FormatMetadata::flatten* functions on the property values before using them, or call FormatMetadata::getFormattedData() on the full response array, which transforms all values into prettified, human-readable text.
Subclasses overriding this function must return a value which is a valid API response fragment (all associative array keys are valid XML tagnames).
Note, if the file simply has no metadata, but the handler supports this interface, it should return an empty array, not false.
File | $file |
Reimplemented from MediaHandler.
Definition at line 152 of file ExifBitmapHandler.php.
References File\getMetadataArray().
Referenced by formatMetadata().
ExifBitmapHandler::getMetadataType | ( | $image | ) |
Get a string describing the type of metadata, for display purposes.
File | $image |
Reimplemented from MediaHandler.
Definition at line 162 of file ExifBitmapHandler.php.
ExifBitmapHandler::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.
This information is only useful when manipulating the original file; the width and height we normally work with is logical, and will match any produced output views.
File | $file |
Reimplemented from MediaHandler.
Definition at line 193 of file ExifBitmapHandler.php.
References BitmapHandler\autoRotateEnabled(), and getRotationForExifFromOrientation().
Referenced by JpegHandler\rotate().
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protected |
Given a chunk of serialized Exif metadata, return the orientation as degrees of rotation.
int | null | $orientation |
Definition at line 210 of file ExifBitmapHandler.php.
Referenced by applyExifRotation(), and getRotation().
ExifBitmapHandler::isFileMetadataValid | ( | $image | ) |
File | $image |
Reimplemented from MediaHandler.
Definition at line 96 of file ExifBitmapHandler.php.
References MediaHandler\METADATA_BAD, MediaHandler\METADATA_COMPATIBLE, MediaHandler\METADATA_GOOD, Exif\version(), and wfDebug().
const ExifBitmapHandler::BROKEN_FILE = '-1' |
Error extracting metadata.
Definition at line 38 of file ExifBitmapHandler.php.
Referenced by JpegHandler\getSizeAndMetadata(), and TiffHandler\getSizeAndMetadata().
const ExifBitmapHandler::OLD_BROKEN_FILE = '0' |
Outdated error extracting metadata.
Definition at line 41 of file ExifBitmapHandler.php.