Extension:Gadgets
Release status: stable |
|
---|---|
Implementation | MyWiki , Special page , API |
Description | Allow users to enable JS-based, user-provided gadgets from their preferences page |
Author(s) | Daniel Kinzler (Duesentriebtalk) |
Compatibility policy | Snapshots releases along with MediaWiki. Master is not backward compatible. |
MediaWiki | 1.19+ |
License | GNU General Public License 2.0 or later |
Download | README |
Example | Wikimedia Commons: Gadget overview, user preferences (click "Gadgets"; you need to be logged in of course) |
|
|
Quarterly downloads | 130 (Ranked 44th) |
Public wikis using | 4,529 (Ranked 177th) |
Translate the Gadgets extension if it is available at translatewiki.net | |
Issues | Open tasks · Report a bug |
The Gadgets extension allows users to select JavaScript or CSS-based "gadgets" provided by other wiki users.
Gadgets are made up of JavaScript and/or CSS Snippets located on pages in the MediaWiki namespace. Each gadget is defined by a line in MediaWiki:Gadgets-definition, providing a name and description for the gadget, and a list of the JS and CSS snippets that it uses (see the Usage section below).
Since Gadgets reside in the MediaWiki namespace (the list defining the gadgets as well as the actual code snippets), only sysops (interface admins from 1.32) can edit the code. This is as it should be: only users especially trusted by the wiki community should be able to edit JavaScript code used by other users since JavaScript can easily be used to hijack accounts or spy on people.
Installation
[edit]- Download and move the extracted
Gadgets
folder to yourextensions/
directory.
Developers and code contributors should install the extension from Git instead, using:cd extensions/
git clone https://gerrit.wikimedia.org/r/mediawiki/extensions/Gadgets - Add the following code at the bottom of your LocalSettings.php file:
wfLoadExtension( 'Gadgets' );
Done – Navigate to Special:Version on your wiki to verify that the extension is successfully installed.
Usage
[edit]Once MediaWiki:Gadgets-definition is created with at least one valid gadget, a new "Gadgets" section will be shown on Special:Preferences for all users. Users can enable the gadgets they would like to use there. An overview of gadgets currently defined by MediaWiki:Gadgets-definition is also rendered on Special:Gadgets, along with helpful links to the relevant localisation and script/style pages for easy creation or editing. Statistics about gadget preferences are available at Special:GadgetUsage.
Definition format
[edit]Each line on the MediaWiki:Gadgets-definition page should start with a "*" (asterisk) character to define a gadget. The line takes the following format:
* mygadget [options] | page names
The first field ("mygadget" in the example) is the gadget's internal name. The label for the preferences page comes from an interface message page (MediaWiki:Gadget-mygadget) where the proper name and a short description can be written, which also allows wikitext markup to be used.
[A-Za-z]
) and may be followed by any number of letters, digits ([0-9]
), hyphens (-
), underscores (_
), and periods (.
). The reason for this limitation is that the internal name must be valid as the name of an HTML form name, as MediaWiki interface message key, and as ResourceLoader module name.Options format:
[ResourceLoader | option1 | option2 | ... optionN]
The ResourceLoader flag is required unless the gadget contains only styles. Options that are "flags" only need to have their name written to be turned on. Options that need a value are followed by an equals sign and a comma-separated list of values. All whitespace is optional and may be omitted.
[ResourceLoader | myflag | mykey = value1, value2, value3 ]
Examples:
* mygadget[ResourceLoader]|mygadget.js|mygadget.css
or
* mygadget[ResourceLoader|package]| mygadget.js | mygadget-Foo.js | mygadget-data.json | mygadget.css
or
* mygadget[ ResourceLoader | rights=foo, bar ] | mygadget.js | mygadget.css
Using Gadget Definition Namespace
[edit]MediaWiki version: | ≤ 1.41 |
There are two ways to define gadgets depending on the $wgGadgetsRepoClass
.
If It is 'MediaWikiGadgetsDefinitionRepo'
(the default value), the list of available gadgets is defined on MediaWiki:Gadgets-definition.
In an alternative way, Gadget definitions are defined on pages in the Gadget definition namespace when $wgGadgetsRepoClass
is set to 'GadgetDefinitionNamespaceRepo'
.
(On MediaWiki 1.39+, the value to use instead is '\\MediaWiki\\Extension\\Gadgets\\GadgetDefinitionNamespaceRepo'
.)
Creation of the Gadget definition:mygadget
page and putting in it the below JSON code have the same effect as mygadget[ ResourceLoader | rights=foo, bar ] | mygadget.js | mygadget.css
.
{
"settings": {
"rights": [ "foo", "bar" ],
"default": false,
"package": false,
"hidden": false,
"skins": [],
"actions": [],
"category": ""
},
"module": {
"scripts": [ "mygadget.js" ],
"styles": [ "mygadget.css" ],
"datas": [],
"peers": [],
"dependencies": [],
"messages": [],
"type": ""
}
}
In above example, the Gadget:Mygadget.js
and the Gadget:mygadget.css
are used.
Options
[edit]Name | Parameters | Description | Since |
---|---|---|---|
ResourceLoader |
None | Marks gadget's scripts as compatible with ResourceLoader . | 1.17 (r76527) |
dependencies
|
Comma-separated module names | These modules will be loaded before the scripts of this gadget execute. See list of default modules. | 1.17 (r76639) |
rights
|
Comma-separated privilege names | Make the gadget available (and visible in preferences) only to users who have the specified privileges. | 1.18 (r85268) |
hidden
|
None | Hide the gadget from the Preferences page. This can be used in two ways:
|
1.28 |
skins
|
Comma-separated skin names | Make the gadget available (and visible in preferences) only to users who use the specified skins. Before MediaWiki 1.32 it was taking into consideration the skin set in preferences for the user, not the current displayed one (like when adding ?useskin=monobook in the URL, task T199478). Since 1.39, the ResourceLoader module is not registered on skins the gadget is unavailable on, so the gadget cannot be loaded on those skins as a dependency or using mw.loader.load() either (task T236603).
Use of
skins is a last resort, and should be restricted to specialized code. For example code which relies on DOM manipulation in the absence of standardized APIs and that cannot be implemented using Core modules. |
1.19 (r100509) |
actions
|
Comma-separated action names | Make the gadget available only on the specified page actions. E.g. actions = edit, history to load a gadget only while editing and on history pages.
Specifying
edit action will also load it on action=submit . Invalid actions effectively disable the gadget since it can't be run anywhere. |
1.38 (gerrit:747112) |
categories
|
Comma-separated category names | Make the gadget available only on the specified categories. E.g. categories = Archived, Maintenance to load a gadget only on pages in the Category:Archived or Category:Maintenance. See also: <tvar name=4>Template gadgets </tvar>.
|
1.42 (gerrit:1005092) |
namespaces
|
Comma-separated namespace numbers | Make the gadget available only on the specified namespaces. E.g. namespaces = 0, 2 to load a gadget only in mainspace and user namespace.
|
1.41 (gerrit:624517) |
contentModels
|
Comma-separated content models | Make the gadget available on pages with the given content models. E.g. contentModels = wikitext to load a gadget only on wikitext pages.
|
1.41 (gerrit:922062) |
default
|
None | Enable the gadget by default for everyone (including IPs). Registered users can still disable it in their preferences. | 1.18 (r85902) |
package
|
None | Mark this gadget as packaged. Only the first JavaScript page will be executed in this mode. Other pages can be imported by using the require() function. This mode also enables the use of JSON pages, which cannot be included otherwise. | 1.38 |
targets
|
desktop , mobile or desktop,mobile (default)
|
(removed in 1.42.0-wmf.16) Set the ResourceLoader target(s) for the gadget.
Do not use
targets , instead use skins where absolutely necessary. |
1.21 (gerrit:60954) |
type
|
styles (default for CSS-only gadgets) or general (default otherwise)
|
Use styles for modules that only modify styling for elements already on the page (e.g. when customizing the skin, layout, or article content). It will cause the CSS files of the module to be included from the page HTML instead of being loaded via JavaScript. For details, see ResourceLoader/Migration guide (users)#Gadget type.
Using
styles will not load in any specified JavaScript files. For gadgets that modify styling for elements through both JavaScript and CSS, two individual gadget definitions are required. |
1.28 |
peers
|
Comma-separated gadget names | These CSS-only gadgets will be loaded with this gadget. These gadgets will be loaded before any dependencies , and their styles will be applied even if JavaScript is disabled. For details, see ResourceLoader/Migration guide (users)#Gadget peers.
|
1.29.0 |
supportsUrlLoad
|
None | true | false | Make the gadget available to be loaded with the ?withgadget URL query parameter.
|
1.38 |
requiresES6
|
None | (removed in 1.42.0-wmf.13) Allow use of ES6 syntax (ES2015) in the gadget. Enabling this means server-side syntax validation is skipped for the gadget. Any ES6-requiring gadgets are loaded together in a single web request, which isolates failures due to invalid or unsupported syntax to those gadgets only, without affecting other gadgets and MediaWiki software features. It is recommended to use a tool like ESLint to ensure only valid ES6 syntax is used. Conflicts with default .
|
1.40.0-wmf.7 (gerrit:758086) |
|
None | (removed in 1.29) Makes the gadget to be top-loaded. This should be used sparingly, but may be needed for some initialization stuff like registering plugins with VisualEditor. | 1.22 (gerrit:75506) |
You can specify extra dependencies for your gadgets, for example:
* mygadget[ResourceLoader|dependencies=jquery.ui, jquery.effects.clip]|mygadget.js|mygadget.css
Here, we ask ResourceLoader to load modules jquery.ui
and jquery.effects.clip
with mygadget.
Note that gadgets can't depend on scripts from pages, static files, or external URLs, only on modules already registered in ResourceLoader.
To make a script from a page depend on another script from a page, each should be a gadget that registers itself as a module in ResourceLoader, then they can be made to have dependencies using the following syntax:
* childgadget[ResourceLoader|dependencies=ext.gadget.parentgadget]|childgadget.js
To enable a gadget by default, use "default
":
* mygadget[ResourceLoader|default|dependencies=mediawiki.util]|mygadget.js|mygadget.css
To make the gadget available only to users with appropriate permissions, set the rights
option, for example:
* ImprovedDeletion [rights=delete] | ImprovedDeletion.js
It makes the gadget available only to users who can delete pages.
Note that restrictions are based on permissions, not user groups like administrators or bureaucrats. Here are some real examples:
* modrollback[ResourceLoader|rights=rollback]|modrollback.js * UTCLiveClock[ResourceLoader|rights=purge]|UTCLiveClock.js * Ajax_sysop[ResourceLoader|rights=patrol,rollback,markbotedits,delete]|Ajax_sysop.js
User rights
[edit]gadgets-edit
and gadgets-definition-edit
, which by default aren't given to any group.
You can add the following in your LocalSettings.php to provide the appropriate permissions for users who are within the interface-admin group.
Editing pages in the Gadget namespace requires the gadgets-edit
right and editing pages in the Gadget definition namespace requires the gadgets-definition-edit
right.
$wgGroupPermissions['interface-admin']['gadgets-edit'] = true;
$wgGroupPermissions['interface-admin']['gadgets-definition-edit'] = true;
Pages
[edit]The remaining fields on the definition line refer to the JavaScript, CSS, or JSON source pages that make up the gadget module. These are stored in the MediaWiki namespace as interface messages (MediaWiki:Gadget-mygadget.js and MediaWiki:Gadget-mygadget.css in the example). The page names must end with ".css", ".js", or ".json" respectively.
A gadget can use any number of source pages, e.g.:
* frobinator[ResourceLoader]|frob.js|frob.css|pretty.css * l33t[ResourceLoader]|l33t.js * foobar[ResourceLoader|package]|foo.js|bar.js|foobar-data.json
Please note that if your code contains strings that could be interpreted as wiki syntax (e.g., the signature code ~~~~
), you may want to enclose your code into <nowiki>...</nowiki>
and put these tags in JavaScript or CSS comments so they're not interpreted when used.
See the first and last lines of MediaWiki:Gadget-externalsearch-bar.js for an example.
Sections
[edit]The list of gadgets in MediaWiki:Gadgets-definition can be broken into sections using lines that start and end with two or more "=" (equals) characters, enclosing the name of a system message that defines the section's name, for example:
== interface-gadgets == ... == editing-gadgets == ...
This would define two new sections, with the titles defined on the pages MediaWiki:Gadget-section-interface-gadgets and MediaWiki:Gadget-section-editing-gadgets.
Popular gadgets
[edit]See meta:Gadgets for gadgets that are popular in Wikimedia communities.
See also
[edit]- Special:Gadgets – lists all the gadgets and a brief description of each
- Extension:Gadgets/Roadmap
- Gadget Manager
- Extension:Widgets
- Snippets
This extension is being used on one or more Wikimedia projects. This probably means that the extension is stable and works well enough to be used by such high-traffic websites. Look for this extension's name in Wikimedia's CommonSettings.php and InitialiseSettings.php configuration files to see where it's installed. A full list of the extensions installed on a particular wiki can be seen on the wiki's Special:Version page. |
This extension is included in the following wiki farms/hosts and/or packages: This is not an authoritative list. Some wiki farms/hosts and/or packages may contain this extension even if they are not listed here. Always check with your wiki farms/hosts or bundle to confirm. |
- Extensions bundled with MediaWiki 1.18
- Stable extensions
- Personalization extensions
- Special page extensions
- API extensions
- GPL licensed extensions
- Extensions in Wikimedia version control
- BeforePageDisplay extensions
- CodeEditorGetPageLanguage extensions
- ContentHandlerDefaultModelFor extensions
- DeleteUnknownPreferences extensions
- GetPreferences extensions
- PageDeleteComplete extensions
- PageSaveComplete extensions
- PreferencesGetIcon extensions
- PreferencesGetLegend extensions
- ResourceLoaderRegisterModules extensions
- UserGetDefaultOptions extensions
- GetUserPermissionsErrors extensions
- WgQueryPages extensions
- All extensions
- Extensions used on Wikimedia
- Extensions included in BlueSpice
- Extensions included in Canasta
- Extensions available as Debian packages
- Extensions included in Fandom
- Extensions included in Miraheze
- Extensions included in MyWikis
- Extensions included in ProWiki
- Extensions included in semantic::core
- Extensions included in ShoutWiki
- Extensions included in Telepedia
- Extensions included in wiki.gg
- Extensions included in WikiForge
- Gadgets
- JavaScript