Handler for GIF images. More...

Inheritance diagram for GIFHandler:

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Collaboration diagram for GIFHandler:

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Public Member Functions
	canAnimateThumbnail ( $file)
	We cannot animate thumbnails that are bigger than a particular size. More...

	formatMetadata ( $image)

	getCommonMetaArray (File $image)
	Return the standard metadata elements for #filemetadata parser func. More...

	getImageArea ( $image)

	getLongDesc ( $image)

	getMetadata ( $image, $filename)
	Get handler-specific metadata which will be saved in the img_metadata field. More...

	getMetadataType ( $image)
	Get a string describing the type of metadata, for display purposes. More...

	isAnimatedImage ( $image)

	isMetadataValid ( $image, $metadata)
	Check if the metadata string is valid for this handler. More...

Public Member Functions inherited from BitmapHandler
	doTransform ( $image, $dstPath, $dstUrl, $params, $flags=0)

	escapeMagickInput ( $path, $scene=false)
	Escape a string for ImageMagick's input filenames. More...

	escapeMagickOutput ( $path, $scene=false)
	Escape a string for ImageMagick's output filename. More...

	escapeMagickProperty ( $s)
	Escape a string for ImageMagick's property input (e.g. More...

	extractPreRotationDimensions ( $params, $rotation)
	Extracts the width/height if the image will be scaled before rotating. More...

	getMediaTransformError ( $params, $errMsg)
	Get a MediaTransformError with error 'thumbnail_error'. More...

	mustRender ( $file)
	Rerurns whether the file needs to be rendered. More...

	normaliseParams ( $image, &$params)

	rotate ( $file, $params)

Public Member Functions inherited from ImageHandler
	canRender ( $file)

	getDimensionsString ( $file)

	getImageSize ( $image, $path)
	Get an image size array like that returned by getimagesize(), or false if it can't be determined. More...

	getParamMap ()
	Get an associative array mapping magic word IDs to parameter names. More...

	getScriptedTransform ( $image, $script, $params)

	getScriptParams ( $params)

	getShortDesc ( $file)

	makeParamString ( $params)
	Merge a parameter array into a string appropriate for inclusion in filenames. More...

	parseParamString ( $str)
	Parse a param string made with makeParamString back into an array. More...

	validateParam ( $name, $value)
	Validate a thumbnail parameter at parse time. More...

	validateThumbParams (&$width, &$height, $srcWidth, $srcHeight, $mimeType)
	Validate thumbnail parameters and fill in the correct height. More...

Public Member Functions inherited from MediaHandler
	convertMetadataVersion ( $metadata, $version=1)
	Convert metadata version. More...

	filterThumbnailPurgeList (&$files, $options)
	Remove files from the purge list. More...

	formatMetadataHelper ( $metadataArray)
	sorts the visible/invisible field. More...

	getAvailableLanguages (File $file)
	Get list of languages file can be viewed in. More...

	getDefaultRenderLanguage (File $file)
	On file types that support renderings in multiple languages, which language is used by default if unspecified. More...

	getEntireText (File $file)
	Get the text of the entire document. More...

	getLength ( $file)
	If its an audio file, return the length of the file. More...

	getPageDimensions ( $image, $page)
	Get an associative array of page dimensions Currently "width" and "height" are understood, but this might be expanded in the future. More...

	getPageText ( $image, $page)
	Generic getter for text layer. More...

	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. More...

	getStreamHeaders ( $metadata)
	Get useful response headers for GET/HEAD requests for a file with the given metadata. More...

	getThumbType ( $ext, $mime, $params=null)
	Get the thumbnail extension and MIME type for a given source MIME type. More...

	getTransform ( $image, $dstPath, $dstUrl, $params)
	Get a MediaTransformOutput object representing the transformed output. More...

	isEnabled ()
	False if the handler is disabled for all files. More...

	isMultiPage ( $file)
	True if the type has multi-page capabilities. More...

	isVectorized ( $file)
	The material is vectorized and thus scaling is lossless. More...

	pageCount ( $file)
	Page count for a multi-page document, false if unsupported or unknown. More...

	parserTransformHook ( $parser, $file)
	Modify the parser object post-transform. More...

	removeBadFile ( $dstPath, $retval=0)
	Check for zero-sized thumbnails. More...

	verifyUpload ( $fileName)
	File validation hook called on upload. More...

Public Attributes
const	BROKEN_FILE = '0'

Public Attributes inherited from MediaHandler
const	MAX_ERR_LOG_SIZE = 65535
	Max length of error logged by logErrorForExternalProcess() More...

const	METADATA_BAD = false

const	METADATA_COMPATIBLE = 2

const	METADATA_GOOD = true

const	TRANSFORM_LATER = 1

Additional Inherited Members
Static Public Member Functions inherited from BitmapHandler
static	autoRotateEnabled ()

static	canRotate ()
	Returns whether the current scaler supports rotation (im and gd do) More...

static	imageJpegWrapper ( $dst_image, $thumbPath)

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. More...

static	getGeneralLongDesc ( $file)
	Used instead of getShortDesc if there is no handler registered for file. More...

static	getGeneralShortDesc ( $file)
	Long description. More...

static	getHandler ( $type)
	Get a MediaHandler for a given MIME type from the instance cache. More...

static	getMetadataVersion ()
	Get metadata version. More...

Protected Member Functions inherited from BitmapHandler
	escapeMagickPath ( $path, $scene=false)
	Armour a string against ImageMagick's GetPathComponent(). More...

	getClientScalingThumbnailImage ( $image, $scalerParams)
	Get a ThumbnailImage that respresents an image that will be scaled client side. More...

	getMagickVersion ()
	Retrieve the version of the installed ImageMagick You can use PHPs version_compare() to use this value Value is cached for one hour. More...

	transformCustom ( $image, $params)
	Transform an image using a custom command. More...

	transformGd ( $image, $params)
	Transform an image using the built in GD library. More...

	transformImageMagick ( $image, $params)
	Transform an image using ImageMagick. More...

	transformImageMagickExt ( $image, $params)
	Transform an image using the Imagick PHP extension. More...

Protected Member Functions inherited from MediaHandler
	logErrorForExternalProcess ( $retval, $err, $cmd)
	Log an error that occurred in an external process. More...

	visibleMetadataFields ()
	Get a list of metadata items which should be displayed when the metadata table is collapsed. More...

Static Protected Member Functions inherited from BitmapHandler
static	getScalerType ( $dstPath, $checkDstPath=true)
	Returns which scaler type should be used. More...

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. More...

Static Protected Attributes inherited from MediaHandler
static	$handlers = array()

Detailed Description

Handler for GIF images.

Definition at line 29 of file GIF.php.

Member Function Documentation

◆ canAnimateThumbnail()

GIFHandler::canAnimateThumbnail ( $file )

We cannot animate thumbnails that are bigger than a particular size.

Parameters

File $file

Returns: bool

Reimplemented from MediaHandler.

Definition at line 116 of file GIF.php.

References $file, getImageArea(), and global.

◆ formatMetadata()

GIFHandler::formatMetadata ( $image )

Parameters

File $image

Returns: array|bool

Reimplemented from MediaHandler.

Definition at line 49 of file GIF.php.

References MediaHandler\formatMetadataHelper(), and getCommonMetaArray().

◆ getCommonMetaArray()

GIFHandler::getCommonMetaArray ( File $image )

Return the standard metadata elements for #filemetadata parser func.

Parameters

File $image

Returns: array|bool

Reimplemented from MediaHandler.

Definition at line 63 of file GIF.php.

References array(), and File\getMetadata().

Referenced by formatMetadata().

◆ getImageArea()

GIFHandler::getImageArea ( $image )

Todo:: Add unit tests

Parameters

File $image

Returns: bool

Reimplemented from ImageHandler.

Definition at line 84 of file GIF.php.

Referenced by canAnimateThumbnail().

◆ getLongDesc()

GIFHandler::getLongDesc ( $image )

Parameters

File $image

Returns: string

Reimplemented from ImageHandler.

Definition at line 158 of file GIF.php.

References $wgLang, array(), global, wfMessage(), wfRestoreWarnings(), and wfSuppressWarnings().

◆ getMetadata()

GIFHandler::getMetadata	(	$image,
		$path
	)

Get handler-specific metadata which will be saved in the img_metadata field.

Parameters

File	$image	The image object, or false if there isn't one. Warning, FSFile::getPropsFromPath might pass an (object)array() instead (!)
string	$path	The filename

Returns: string

Reimplemented from MediaHandler.

Definition at line 32 of file GIF.php.

References $e, BROKEN_FILE, BitmapMetadataHandler\GIF(), and wfDebug().

◆ getMetadataType()

GIFHandler::getMetadataType ( $image )

Get a string describing the type of metadata, for display purposes.

Parameters

File $image

Returns: string

Reimplemented from MediaHandler.

Definition at line 123 of file GIF.php.

◆ isAnimatedImage()

GIFHandler::isAnimatedImage ( $image )

Parameters

File $image

Returns: bool

Reimplemented from MediaHandler.

Definition at line 99 of file GIF.php.

◆ isMetadataValid()

GIFHandler::isMetadataValid	(	$image,
		$metadata
	)

Check if the metadata string is valid for this handler.

If it returns MediaHandler::METADATA_BAD (or false), Image will reload the metadata from the file and update the database. MediaHandler::METADATA_GOOD for if the metadata is a-ok, MediaHanlder::METADATA_COMPATIBLE if metadata is old but backwards compatible (which may or may not trigger a metadata reload).

Parameters

File	$image
array	$metadata

Returns: bool

Reimplemented from MediaHandler.

Definition at line 127 of file GIF.php.

References MediaHandler\METADATA_BAD, MediaHandler\METADATA_COMPATIBLE, MediaHandler\METADATA_GOOD, GIFMetadataExtractor\VERSION, wfDebug(), wfRestoreWarnings(), and wfSuppressWarnings().

Member Data Documentation

◆ BROKEN_FILE

const GIFHandler::BROKEN_FILE = '0'

Definition at line 30 of file GIF.php.

Referenced by getMetadata(), GIFHandlerTest\provideIsMetadataValid(), and GIFHandlerTest\testInvalidFile().

The documentation for this class was generated from the following file:

includes/media/GIF.php

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ canAnimateThumbnail()

◆ formatMetadata()

◆ getCommonMetaArray()

◆ getImageArea()

◆ getLongDesc()

◆ getMetadata()

◆ getMetadataType()

◆ isAnimatedImage()

◆ isMetadataValid()

Member Data Documentation

◆ BROKEN_FILE