This document describes how event hooks work in the Translate extension; how to add hooks for an event; and how to run hooks for an event. For a more comprehensive guide to hooks, navigate to your root MediaWiki directory, and then find /docs/hooks.txt. == Rationale == Hooks allow us to decouple optionally-run code from code that is run for everyone. It allows MediaWiki hackers, third-party developers and local administrators to define code that will be run at certain points in the mainline code, and to modify the data run by that mainline code. Hooks can keep mainline code simple, and make it easier to write extensions. Hooks are a principled alternative to local patches. == Writing hooks == === PHP hooks === For a guide to PHP hooks, navigate to your root MediaWiki directory, and then find docs/hooks.txt. === JavaScript hooks === JavaScript hooks for the Translate extension use the standard mw.hook API provided by MediaWiki. Hooks are prefixed with mw.translate as a convention. == Events and parameters == This is a list of known events and parameters; please add to it if you're going to add events to the Translate extension. === PHP events === ;TranslateBeforeAddModules: Provides an opportunity to load extra modules array &$modules: List of resource loader module names ;TranslateEventMessageMembershipChange: When group gets new messages or loses messages MessageHandle $handle array $old Previous groups array $new Current groups ;TranslateEventMessageGroupStateChange: Event triggered when a message group workflow state is changed in a language MessageGroup $group: Message group instance string $code: Language code string $oldState string $newState ;TranslateEventTranslationReview: Event triggered when a translation is proofread MessageHandle $handle ;TranslateGetAPIMessageGroupsParameterList: Allows extra parameters to be added to the action=query&meta=messagegroups module array &$params: An associative array of possible parameters (name => details; see ApiQueryMessageGroups.php for correct spacing) ;TranslateGetAPIMessageGroupsPropertyDescs: Allows extra properties to be added to captured by action=query&meta=messagegroups&mgprop=foo|bar|bat module array &$properties: An associative array of properties, name => description (which is ignored). ;TranslateGetSpecialTranslateOptions: Provides an opportunity for overriding task values array &$defaults: Associative array of default values array &$nondefaults: Associative array of nondefault (override) values ;Translate:GettextFFS:headerFields: Allows customizing headers of exported Gettext files per group. Certain X-headers nor Plural-Forms cannot be customized. array &$headers: List of prefilled headers. You can remove, change or add new headers. MessageGroup $group: Message group instance string $code: Language code ;Translate:newTranslation: Event triggered when non-fuzzy translation has been made MessageHandle $handle int $revisionId string $text: Content of the new translation User $user: User who created or changed the translation ;TranslatePostInitGroups: Hook to register new message groups to Translate. Manual cache clear may be needed to have this hook executed. array &$groups: Map of message group id to message group instance array &$deps: List of dependencies as supported by DependencyWrapper class from MediaWiki array &$autoload: List of autoloaded classes. Key is the name of the class and value is filename. ;TranslateInitGroupLoaders: Hook to register new message group loaders that can then load MessageGroups for translation purpose. array &$groupLoader: List of message group loader class names that implement the MessageGroupLoader ;TranslatePrefillTranslation: Provides an opportunity for a new translation to start not from as a carte blanche (the default) but from some prefilled string string &$translation: The translation string as it stands MessageHandle $handle: The current MessageHandle object ;TranslateProcessAPIMessageGroupsProperties: Allows extra property requests to be acted upon, and the new properties returned array &$a: Associative array of the properties of $group that will be returned array $props: Associative array ($name => true) of properties the user has specifically requested array $params: Parameter input by the user (unprefixed name => value) MessageGroup $g: The group in question ;TranslateSupportedLanguages: Allows removing languages from language selectors. For adding $wgExtraLanguage names is recommended. array &$list: List of languages indexed by language code string $language: Language code of the language of which language names are in ;Translate:modifyMessageGroupStates: Allow hooks to change workflow states depending on the group's ID. string $groupId: ID of the current message group. array &$conf: Workflow states, can be modified. === JavaScript events === ;mw.translate.editor.afterSubmit: Provides an opportunity to modify a Translate translation form immediately after it is submitted jQuery form: The form that has just been submitted ;mw.translate.editor.afterEditorShown: Provides an opportunity to manipulate the editing interface once it's shown jQuery translateEditor.$editor: The current translation-editing form ;mw.translate.editor.beforeSubmit: Provides an opportunity to modify a Translate translation form immediately before it is submitted jQuery form: The form being submitted ;mw.translate.messagetable.formatMessageBeforeTable: Provides an opportunity to manipulate the display of translation strings (messages) in the main table object message: The message object, with a range of useful (and manipulable) properties ;mw.translate.editor.showTranslationHelpers: Provides an opportunity to handle custom translation helpers object result.helpers: JSON subset focusing on the helpers returned e.g. result.helpers.definition jQuery translateEditor.$editor: The current translation-editing form ;wikipage.content: See this hook in MediaWiki core. Fired for message documentation in the translation editor. jQuery $content