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Manual:Hooks/DifferenceEngineOldHeader

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DifferenceEngineOldHeader
Available from version 1.29.0 (Gerrit change 298026)
Allows extensions to change the $oldHeader variable, which contains information about the old revision, such as the revision's author, whether the revision was marked as a minor edit or not, etc.
Define function:
public static function onDifferenceEngineOldHeader( $differenceEngine, &$oldHeader, $prevlink, $oldminor, $diffOnly, $ldel, $unhide ) { ... }
Attach hook: In extension.json:
{
	"Hooks": {
		"DifferenceEngineOldHeader": "MediaWiki\\Extension\\MyExtension\\Hooks::onDifferenceEngineOldHeader"
	}
}
Called from: File(s): diff/DifferenceEngine.php
Function(s): showDiffPage
Interface: DifferenceEngineOldHeaderHook.php

For more information about attaching hooks, see Manual:Hooks .
For examples of extensions using this hook, see Category:DifferenceEngineOldHeader extensions.


Details

[edit]
  • $differenceEngine: DifferenceEngine object
  • &$oldHeader: The string containing the various #mw-diff-otitle[1-5] divs, which include things like revision author info, revision comment, RevisionDelete link and more
  • $prevlink: String containing the link to the previous revision (if any); also included in $oldHeader
  • $oldminor: String indicating if the old revision was marked as a minor edit
  • $diffOnly: Boolean parameter passed to DifferenceEngine#showDiffPage, indicating whether we should show just the diff; passed in as a query string parameter to the various URLs constructed here (i.e. $prevlink)
  • $ldel: RevisionDelete link for the old revision, if the current user is allowed to use the RevisionDelete feature
  • $unhide: Boolean parameter indicating whether to show RevisionDeleted revisions