wiki.techinc.nl/includes/parser/ParserOutputFlags.php
C. Scott Ananian 6d5c62f5cf ParserOutputFlags: change HIDE_TOC to SHOW_TOC
When I implemented the ParserOutput merge logic in OutputPage
(I0909ac85c6c785d9089b077a16923c61d6a09996) I realized that
consistent "combine with OR" merge logic for the TOC flag
is obtained only if we invert the flag; that is, the existing
code showed a TOC *if any ParserOutput contained a shown TOC*
otherwise the TOC was hidden.

I'd originally implemented this in
I35e199cca40c0e4359ac493e5806dcf4ae49321c with the opposite sense in
order to avoid having to wait for ParserCache contents to expire:
since the default on most pages was to have the TOC shown anyway, if
"out of date" parser cache entries were missing a HIDE_TOC flag, it
wouldn't be a big deal, whereas if a SHOW_TOC flag were required then
upon deploy all cached pages would lose their TOC rendering.

BUT a better solution is just to let a "parser cache expiration time"
elapse between the time we start generating this flag and the time we
start using it.  The existing patch to export this
(I6cf76c870124c162dc1bcbc2f7e9ca0c5fdcd10e) uses
ParserOutput::getTOCHTML() anyway, so we can just wait to switch this
over to use the SHOW_TOC flag
(I10c3d06fb162103c06395bf9d1d27ac3c199d7b6) until the parser cache has
expired.

Anyway, this is a bit of a hassle to switch now, but I think having
consistent merge semantics for ParserOutput flags is worth the
short-term pain.

Bug: T310083
Change-Id: I3b76010f1e2283add629b84bf3824f215f932903
2022-07-27 18:45:59 -04:00

181 lines
5.1 KiB
PHP

<?php
/**
* Registry of flags used with ParserOutput::setOutputFlag() within
* MediaWiki core.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
* http://www.gnu.org/copyleft/gpl.html
*
* @since 1.38
*
* @file
* @ingroup Parser
*/
namespace MediaWiki\Parser;
/**
* Registry of flags used with ParserOutput::{get,set}OutputFlag() within
* MediaWiki core.
*
* All flags used should be defined in this class.
*
* It is recommended that new flag names in core should begin with 'mw-'
* in order to prevent namespace conflicts with legacy flags.
*
* @package MediaWiki\Parser
*/
class ParserOutputFlags {
// These flags are currently stored as ParserOutput properties
/**
* @var string No gallery on category page? (__NOGALLERY__).
* @see \ParserOutput::getNoGallery()
* @see \ParserOutput::setNoGallery()
*/
public const NO_GALLERY = 'mw-NoGallery';
/**
* @var string Whether OOUI should be enabled.
* @see \ParserOutput::getEnableOOUI()
* @see \ParserOutput::setEnableOOUI()
*/
public const ENABLE_OOUI = 'mw-EnableOOUI';
/**
* @var string Force index policy to be 'index'
* @see \ParserOutput::getIndexPolicy()
* @see \ParserOutput::setIndexPolicy()
*/
public const INDEX_POLICY = 'mw-IndexPolicy';
/**
* @var string Force index policy to be 'noindex'
* @see \ParserOutput::getIndexPolicy()
* @see \ParserOutput::setIndexPolicy()
*/
public const NO_INDEX_POLICY = 'mw-NoIndexPolicy';
/**
* @var string Show a new section link?
* @see \ParserOutput::getNewSection()
* @see \ParserOutput::setNewSection()
*/
public const NEW_SECTION = 'mw-NewSection';
/**
* @var string Hide the new section link?
* @see \ParserOutput::getHideNewSection()
* @see \ParserOutput::setHideNewSection()
*/
public const HIDE_NEW_SECTION = 'mw-HideNewSection';
/**
* @var string The prevent-clickjacking flag
* @see \ParserOutput::getPreventClickjacking()
* @see \ParserOutput::setPreventClickjacking()
*/
public const PREVENT_CLICKJACKING = 'mw-PreventClickjacking';
// These flags are stored in the ParserOutput::$mFlags array
/**
* @var string Show the table of contents in the skin?
*/
public const SHOW_TOC = 'show-toc';
/**
* @var string Used to suppress language conversion in ToC contents.
*/
public const NO_TOC_CONVERSION = 'no-toc-conversion';
/**
* @var string
*/
public const VARY_REVISION = 'vary-revision';
/**
* @var string Similar to VARY_REVISION, but used if we didn't
* guess the ID correctly. Informs the edit saving system that
* getting the canonical output after revision insertion requires
* a parse that used that exact revision ID.
*/
public const VARY_REVISION_ID = 'vary-revision-id';
/**
* @var string Similar to VARY_REVISION, but used if we didn't
* guess the timestamp correctly. Informs the edit saving system
* that getting the canonical output after revision insertion
* requires a parse that used an actual revision timestamp.
*/
public const VARY_REVISION_TIMESTAMP = 'vary-revision-timestamp';
/**
* @var string Similar to VARY_REVISION, but used if we didn't guess the
* content correctly.
*/
public const VARY_REVISION_SHA1 = 'vary-revision-sha1';
/**
* @var string Similar to VARY_REVISION
*/
public const VARY_REVISION_EXISTS = 'vary-revision-exists';
/**
* @var string Similar to VARY_REVISION, but used if we didn't guess the
* page id correctly. Informs the edit saving system that getting the
* canonical output after page insertion requires a parse that used that
* exact page id.
*/
public const VARY_PAGE_ID = 'vary-page-id';
/**
* @var string Similar to VARY_REVISION. Informs the edit saving
* system that getting the canonical output after revision
* insertion requires a parse that used the actual user ID.
*/
public const VARY_USER = 'vary-user';
/**
* @var string Used to avoid extremely stale user signature timestamps
* (T84843). Set if the signature wikitext contains another '~~~~' or
* similar (T230652).
*/
public const USER_SIGNATURE = 'user-signature';
public static function cases(): array {
return [
self::NO_GALLERY,
self::NO_TOC_CONVERSION,
self::ENABLE_OOUI,
self::INDEX_POLICY,
self::NO_INDEX_POLICY,
self::NEW_SECTION,
self::HIDE_NEW_SECTION,
self::SHOW_TOC,
self::PREVENT_CLICKJACKING,
self::VARY_REVISION,
self::VARY_REVISION_ID,
self::VARY_REVISION_TIMESTAMP,
self::VARY_REVISION_SHA1,
self::VARY_REVISION_EXISTS,
self::VARY_PAGE_ID,
self::VARY_USER,
self::USER_SIGNATURE,
];
}
}