Dynamic JavaScript and CSS resource loading system. More...

Public Member Functions
	__construct ()
	Registers core modules and runs registration hooks.
	addSource ($id, $properties=null)
	Add a foreign source of modules.
	getModule ($name)
	Get the ResourceLoaderModule object for a given module name.
	getModuleNames ()
	Get a list of module names.
	getSources ()
	Get the list of sources.
	getTestModuleNames ($framework= 'all')
	Get a list of test module names for one (or all) frameworks.
	makeModuleResponse (ResourceLoaderContext $context, array $modules, $missing=array())
	Generates code for a response.
	preloadModuleInfo (array $modules, ResourceLoaderContext $context)
	Loads information stored in the database about modules.
	register ($name, $info=null)
	Registers a module with the ResourceLoader system.
	registerTestModules ()
	respond (ResourceLoaderContext $context)
	Outputs a response to a resource load-request, including a content-type header.
Static Public Member Functions
static	inDebugMode ()
	Determine whether debug mode was requested Order of priority is 1) request param, 2) cookie, 3) $wg setting.
static	makeCombinedStyles (array $styles)
	Combines an associative array mapping media type to CSS into a single stylesheet with blocks.
static	makeConfigSetScript (array $configuration)
	Returns JS code which will set the MediaWiki configuration array to the given value.
static	makeCustomLoaderScript ($name, $version, $dependencies, $group, $source, $script)
	Returns JS code which calls the script given by $script.
static	makeLoaderConditionalScript ($script)
	Returns JS code which runs given JS code if the client-side framework is present.
static	makeLoaderImplementScript ($name, $scripts, $styles, $messages)
	Returns JS code to call to mw.loader.implement for a module with given properties.
static	makeLoaderQuery ($modules, $lang, $skin, $user=null, $version=null, $debug=false, $only=null, $printable=false, $handheld=false, $extraQuery=array())
	Build a query array (array representation of query string) for load.php.
static	makeLoaderRegisterScript ($name, $version=null, $dependencies=null, $group=null, $source=null)
	Returns JS code which calls mw.loader.register with the given parameters.
static	makeLoaderSourcesScript ($id, $properties=null)
	Returns JS code which calls mw.loader.addSource() with the given parameters.
static	makeLoaderStateScript ($name, $state=null)
	Returns a JS call to mw.loader.state, which sets the state of a module or modules to a given value.
static	makeLoaderURL ($modules, $lang, $skin, $user=null, $version=null, $debug=false, $only=null, $printable=false, $handheld=false, $extraQuery=array())
	Build a load.php URL.
static	makeMessageSetScript ($messages)
	Returns JS code which, when called, will register a given list of messages.
static	makePackedModulesString ($modules)
	Convert an array of module names to a packed query string.
Protected Member Functions
	filter ($filter, $data)
	Runs JavaScript or CSS data through a filter, caching the filtered result for future calls.
	formatException ($e)
	Handle exception display.
	makeComment ($text)
	sendResponseHeaders (ResourceLoaderContext $context, $mtime)
	Send content type and last modified headers to the client.
	tryRespondFromFileCache (ResourceFileCache $fileCache, ResourceLoaderContext $context)
	Send out code for a response from file cache if possible.
	tryRespondLastModified (ResourceLoaderContext $context, $mtime)
	If there's an If-Modified-Since header, respond with a 304 appropriately and clear out the output buffer.
Protected Attributes
	$moduleInfos = array()
	Associative array mapping module name to info associative array.
	$modules = array()
	Array: List of module name/ResourceLoaderModule object pairs.
	$sources = array()
	array( 'source-id' => array( 'loadScript' => 'http://.../load.php' ) )
	$testModuleNames = array()
	Associative array mapping framework ids to a list of names of test suite modules.
Static Protected Attributes
static	$filterCacheVersion = 7
static	$requiredSourceProperties = array( 'loadScript' )

Detailed Description

Dynamic JavaScript and CSS resource loading system.

Most of the documention is on the MediaWiki documentation wiki starting at: http://www.mediawiki.org/wiki/ResourceLoader

Definition at line 29 of file ResourceLoader.php.

Constructor & Destructor Documentation

ResourceLoader::__construct ( )

Registers core modules and runs registration hooks.

Definition at line 189 of file ResourceLoader.php.

References $IP, $wgEnableJavaScriptTest, $wgLoadScript, $wgResourceLoaderSources, $wgResourceModules, addSource(), registerTestModules(), wfProfileIn(), wfProfileOut(), wfRunHooks(), and wfScript().

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Member Function Documentation

ResourceLoader::addSource	(	$	id,
		$	properties = `null`
	)

Add a foreign source of modules.

Source properties: 'loadScript': URL (either fully-qualified or protocol-relative) of load.php for this source

Parameters:

$id	Mixed: source ID (string), or array( id1 => props1, id2 => props2, ... )
$properties	Array: source properties

Definition at line 311 of file ResourceLoader.php.

Referenced by __construct().

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ResourceLoader::filter	(	$	filter,
		$	data
	)		`[protected]`

Runs JavaScript or CSS data through a filter, caching the filtered result for future calls.

Available filters are:

minify-js
See also:
JavaScriptMinifier::minify
minify-css
See also:
CSSMin::minify
If $data is empty, only contains whitespace or the filter was unknown, $data is returned unmodified.

Parameters:

$filter	String: Name of filter to run
$data	String: Text to filter, such as JavaScript or CSS text

Returns:: String: Filtered data, or a comment containing an error message

Definition at line 132 of file ResourceLoader.php.

References $result, $wgResourceLoaderMinifierMaxLineLength, $wgResourceLoaderMinifierStatementsOnOwnLine, formatException(), JavaScriptMinifier\minify(), CSSMin\minify(), wfGetCache(), wfMemcKey(), wfProfileIn(), and wfProfileOut().

Referenced by makeModuleResponse().

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ResourceLoader::formatException ( $ e ) [protected]

Handle exception display.

Parameters:

Exception $e to be shown to the user

Returns:: string sanitized text that can be returned to the user

Definition at line 660 of file ResourceLoader.php.

References $wgShowExceptionDetails, makeComment(), and wfMessage().

Referenced by filter(), makeModuleResponse(), and respond().

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ResourceLoader::getModule ( $ name )

Get the ResourceLoaderModule object for a given module name.

Parameters:

$name String: Module name

Returns:: ResourceLoaderModule if module has been registered, null otherwise

Definition at line 372 of file ResourceLoader.php.

Referenced by MessageBlobStore\getFromDB(), preloadModuleInfo(), respond(), and ResourceLoaderTest\testRegisteredValidModulesAreAccessible().

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ResourceLoader::getModuleNames ( )

Get a list of module names.

Returns:: Array: List of module names

Definition at line 343 of file ResourceLoader.php.

ResourceLoader::getSources ( )

Get the list of sources.

Returns:: Array: array( id => array of properties, .. )

Definition at line 403 of file ResourceLoader.php.

ResourceLoader::getTestModuleNames ( $ framework = 'all' )

Get a list of test module names for one (or all) frameworks.

If the given framework id is unknkown, or if the in-object variable is not an array, then it will return an empty array.

Parameters:

$framework String: Optional. Get only the test module names for one particular framework.

Returns:: Array

Definition at line 356 of file ResourceLoader.php.

static ResourceLoader::inDebugMode ( ) [static]

Determine whether debug mode was requested Order of priority is 1) request param, 2) cookie, 3) $wg setting.

Returns:: bool

Definition at line 1040 of file ResourceLoader.php.

References $wgResourceLoaderDebug.

Referenced by OutputPage\makeResourceLoaderLink().

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static ResourceLoader::makeCombinedStyles ( array $ styles ) [static]

Combines an associative array mapping media type to CSS into a single stylesheet with blocks.

Parameters:

$styles Array: List of CSS strings keyed by media type

Returns:: string

Definition at line 861 of file ResourceLoader.php.

References $out, and OutputPage\transformCssMedia().

Referenced by makeModuleResponse().

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ResourceLoader::makeComment ( $ text ) [protected]

Definition at line 649 of file ResourceLoader.php.

Referenced by formatException(), and respond().

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static ResourceLoader::makeConfigSetScript ( array $ configuration ) [static]

Returns JS code which will set the MediaWiki configuration array to the given value.

Parameters:

$configuration Array: List of configuration values keyed by variable name

Returns:: string

Definition at line 1005 of file ResourceLoader.php.

References Xml\encodeJsCall().

Referenced by MWDebug\getDebugHTML(), OutputPage\getHeadScripts(), and Skin\makeVariablesScript().

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static ResourceLoader::makeCustomLoaderScript	(	$	name,
		$	version,
		$	dependencies,
		$	group,
		$	source,
		$	script
	)		`[static]`

Returns JS code which calls the script given by $script.

The script will be called with local variables name, version, dependencies and group, which will have values corresponding to $name, $version, $dependencies and $group as supplied.

Parameters:

$name	String: Module name
$version	Integer: Module version number as a timestamp
$dependencies	Array: List of module names on which this module depends
$group	String: Group which the module is in.
$source	String: Source of the module, or 'local' if not foreign.
$script	String: JavaScript code

Returns:: string

Definition at line 918 of file ResourceLoader.php.

References $version, and Xml\encodeJsCall().

Referenced by ResourceLoaderStartUpModule\getModuleRegistrations().

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static ResourceLoader::makeLoaderConditionalScript ( $ script ) [static]

Returns JS code which runs given JS code if the client-side framework is present.

Parameters:

$script String: JavaScript code

Returns:: string

Definition at line 993 of file ResourceLoader.php.

Referenced by ProtectionForm\buildCleanupScript(), MWDebug\getDebugHTML(), EditPage\getEditToolbar(), OutputPage\getHeadScripts(), OutputPage\getScriptsForBottomQueue(), OutputPage\makeResourceLoaderLink(), and Skin\makeVariablesScript().

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static ResourceLoader::makeLoaderImplementScript	(	$	name,
		$	scripts,
		$	styles,
		$	messages
	)		`[static]`

Returns JS code to call to mw.loader.implement for a module with given properties.

Parameters:

$name	Module name
$scripts	Mixed: List of URLs to JavaScript files or String of JavaScript code
$styles	Mixed: List of CSS strings keyed by media type, or list of lists of URLs to CSS files keyed by media type
$messages	Mixed: List of messages associated with this module. May either be an associative array mapping message key to value, or a JSON-encoded message blob containing the same data, wrapped in an XmlJsCode object.

Returns:: string

Definition at line 825 of file ResourceLoader.php.

References $messages, and Xml\encodeJsCall().

Referenced by makeModuleResponse().

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static ResourceLoader::makeLoaderQuery	(	$	modules,
		$	lang,
		$	skin,
		$	user = `null`,
		$	version = `null`,
		$	debug = `false`,
		$	only = `null`,
		$	printable = `false`,
		$	handheld = `false`,
		$	extraQuery = `array()`
	)		`[static]`

Build a query array (array representation of query string) for load.php.

Helper function for makeLoaderURL().

Returns:: array

Definition at line 1081 of file ResourceLoader.php.

References $user, and $version.

Referenced by makeLoaderURL(), and OutputPage\makeResourceLoaderLink().

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static ResourceLoader::makeLoaderRegisterScript	(	$	name,
		$	version = `null`,
		$	dependencies = `null`,
		$	group = `null`,
		$	source = `null`
	)		`[static]`

Returns JS code which calls mw.loader.register with the given parameters.

Has three calling conventions:

ResourceLoader::makeLoaderRegisterScript( $name, $version, $dependencies, $group, $source ): Register a single module.

ResourceLoader::makeLoaderRegisterScript( array( $name1, $name2 ) ): Register modules with the given names.

ResourceLoader::makeLoaderRegisterScript( array( array( $name1, $version1, $dependencies1, $group1, $source1 ), array( $name2, $version2, $dependencies1, $group2, $source2 ), ... ) ): Registers modules with the given names and parameters.

Parameters:

$name	String: Module name
$version	Integer: Module version number as a timestamp
$dependencies	Array: List of module names on which this module depends
$group	String: group which the module is in.
$source	String: source of the module, or 'local' if not foreign

Returns:: string

Definition at line 950 of file ResourceLoader.php.

References $version, and Xml\encodeJsCall().

Referenced by ResourceLoaderStartUpModule\getModuleRegistrations().

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static ResourceLoader::makeLoaderSourcesScript	(	$	id,
		$	properties = `null`
	)		`[static]`

Returns JS code which calls mw.loader.addSource() with the given parameters.

Has two calling conventions:

ResourceLoader::makeLoaderSourcesScript( $id, $properties ): Register a single source

ResourceLoader::makeLoaderSourcesScript( array( $id1 => $props1, $id2 => $props2, ... ) ); Register sources with the given IDs and properties.

Parameters:

$id	String: source ID
$properties	Array: source properties (see addSource())

Returns:: string

Definition at line 977 of file ResourceLoader.php.

References Xml\encodeJsCall().

Referenced by ResourceLoaderStartUpModule\getModuleRegistrations().

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static ResourceLoader::makeLoaderStateScript	(	$	name,
		$	state = `null`
	)		`[static]`

Returns a JS call to mw.loader.state, which sets the state of a module or modules to a given value.

Has two calling conventions:

ResourceLoader::makeLoaderStateScript( $name, $state ): Set the state of a single module called $name to $state

ResourceLoader::makeLoaderStateScript( array( $name => $state, ... ) ): Set the state of modules with the given names to the given states

Parameters:

$name	string
$state

Returns:: string

Definition at line 895 of file ResourceLoader.php.

References Xml\encodeJsCall().

Referenced by makeModuleResponse().

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static ResourceLoader::makeLoaderURL	(	$	modules,
		$	lang,
		$	skin,
		$	user = `null`,
		$	version = `null`,
		$	debug = `false`,
		$	only = `null`,
		$	printable = `false`,
		$	handheld = `false`,
		$	extraQuery = `array()`
	)		`[static]`

Build a load.php URL.

Parameters:

$modules	array of module names (strings)
$lang	string Language code
$skin	string Skin name
$user	string\|null User name. If null, the &user= parameter is omitted
$version	string\|null Versioning timestamp
$debug	bool Whether the request should be in debug mode
$only	string\|null &only= parameter
$printable	bool Printable mode
$handheld	bool Handheld mode
$extraQuery	array Extra query parameters to add

Returns:: string URL to load.php. May be protocol-relative (if $wgLoadScript is procol-relative)

Definition at line 1064 of file ResourceLoader.php.

References $user, $version, $wgLoadScript, makeLoaderQuery(), wfAppendQuery(), and wfExpandUrl().

Referenced by ResourceLoaderModule\getScriptURLsForDebug(), ResourceLoaderModule\getStyleURLsForDebug(), and OutputPage\makeResourceLoaderLink().

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static ResourceLoader::makeMessageSetScript ( $ messages ) [static]

Returns JS code which, when called, will register a given list of messages.

Parameters:

$messages Mixed: Either an associative array mapping message key to value, or a JSON-encoded message blob containing the same data, wrapped in an XmlJsCode object.

Returns:: string

Definition at line 849 of file ResourceLoader.php.

References $messages, and Xml\encodeJsCall().

Referenced by makeModuleResponse().

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ResourceLoader::makeModuleResponse	(	ResourceLoaderContext $	context,
		array $	modules,
		$	missing = `array()`
	)

Generates code for a response.

Parameters:

$context	ResourceLoaderContext: Context in which to generate a response
$modules	Array: List of module objects keyed by module name
$missing	Array: List of unavailable modules (optional)

Returns:: String: Response data

Definition at line 678 of file ResourceLoader.php.

References $exceptions, $out, filter(), formatException(), MessageBlobStore\get(), ResourceLoaderContext\getDebug(), ResourceLoaderContext\getLanguage(), ResourceLoaderContext\getOnly(), makeCombinedStyles(), makeLoaderImplementScript(), makeLoaderStateScript(), makeMessageSetScript(), ResourceLoaderContext\shouldIncludeMessages(), ResourceLoaderContext\shouldIncludeScripts(), ResourceLoaderContext\shouldIncludeStyles(), wfProfileIn(), and wfProfileOut().

Referenced by respond().

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static ResourceLoader::makePackedModulesString ( $ modules ) [static]

Convert an array of module names to a packed query string.

For example, array( 'foo.bar', 'foo.baz', 'bar.baz', 'bar.quux' ) becomes 'foo.bar,baz|bar.baz,quux'

Parameters:

$modules array of module names (strings)

Returns:: string Packed query string

Definition at line 1017 of file ResourceLoader.php.

Referenced by ResourceLoaderStartUpModule\getScript(), and ResourceLoaderTest\testMakePackedModulesString().

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ResourceLoader::preloadModuleInfo	(	array $	modules,
		ResourceLoaderContext $	context
	)

Loads information stored in the database about modules.

This method grabs modules dependencies from the database and updates modules objects.

This is not inside the module code because it is much faster to request all of the information at once than it is to have each module requests its own information. This sacrifice of modularity yields a substantial performance improvement.

Parameters:

$modules	Array: List of module names to preload information for
$context	ResourceLoaderContext: Context to load the information within

Definition at line 64 of file ResourceLoader.php.

References $dbr, $res, FormatJson\decode(), ResourceLoaderContext\getLanguage(), getModule(), ResourceLoaderContext\getSkin(), wfGetDB(), and wfTimestamp().

Referenced by respond().

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ResourceLoader::register	(	$	name,
		$	info = `null`
	)

Registers a module with the ResourceLoader system.

Parameters:

$name	Mixed: Name of module as a string or List of name/object pairs as an array
$info	Module info array. For backwards compatibility with 1.17alpha, this may also be a ResourceLoaderModule object. Optional when using multiple-registration calling style.

Exceptions:

MWException,:	If a duplicate module registration is attempted
MWException,:	If a module name contains illegal characters (pipes or commas)
MWException,:	If something other than a ResourceLoaderModule is being registered