Each mediawiki web has a MediaWiki:Common.js page (see, e.g., that of Wikipedia) that runs java script on each page. That's a powerful tool (apparently to be deprecated at some point). Installation should be straightforward but for some reason, can sometimes be frustratingly painful, so I give a particular example that should work on its own.
Visit the page MediaWiki:Common.js (create the page if it doesn't exist, you may have to put
$wgAllowUserJs = true; $wgUserSiteJs = true;
in your LocalSettings.php to do so, although in my case, even putting this to false does nothing) and add the following (from [1]):
function addExtraButtons () {
mw.toolbar.addButtons(
{
imageId: 'button-redirect',
imageFile: '//upload.wikimedia.org/wikipedia/en/c/c8/Button_redirect.png',
speedTip: 'Redirect',
tagOpen: '#REDIRECT[[',
tagClose: ']]',
sampleText: 'Target page name'
},
{
imageId: 'button-strike',
imageFile: '//upload.wikimedia.org/wikipedia/en/c/c9/Button_strike.png',
speedTip: 'Strike',
tagOpen: '<s>',
tagClose: '</s>',
sampleText: 'Strike-through text'
},
{
imageId: 'button-enter',
imageFile: '//upload.wikimedia.org/wikipedia/en/1/13/Button_enter.png',
speedTip: 'Line break',
tagOpen: '<br/>',
tagClose: '',
sampleText: ''
},
{
imageId: 'button-subscript',
imageFile: '//upload.wikimedia.org/wikipedia/en/7/70/Button_lower_letter.png',
speedTip: 'Subscript',
tagOpen: '<sub>',
tagClose: '</sub>',
sampleText: 'Subscript text'
},
{
imageId: 'button-superscript',
imageFile: '//upload.wikimedia.org/wikipedia/en/8/80/Button_upper_letter.png',
speedTip: 'Superscript',
tagOpen: '<sup>',
tagClose: '</sup>',
sampleText: 'Superscript text'
},
{
imageId: 'button-small',
imageFile: '//upload.wikimedia.org/wikipedia/en/5/58/Button_small.png',
speedTip: 'Small',
tagOpen: '<small>',
tagClose: '</small>',
sampleText: 'Small text'
},
{
imageId: 'button-hide-comment',
imageFile: '//upload.wikimedia.org/wikipedia/en/3/34/Button_hide_comment.png',
speedTip: 'Insert hidden Comment',
tagOpen: '<!-- ',
tagClose: ' -->',
sampleText: 'Comment'
},
{
imageId: 'button-gallery',
imageFile: '//upload.wikimedia.org/wikipedia/en/1/12/Button_gallery.png',
speedTip: 'Insert a picture gallery',
tagOpen: '\n<gallery>\n',
tagClose: '\n</gallery>',
sampleText: 'File:Example.svg|Caption1\nFile:Example.jpg|Caption2'
},
{
imageId: 'button-blockquote',
imageFile: '//upload.wikimedia.org/wikipedia/en/f/fd/Button_blockquote.png',
speedTip: 'Insert block of quoted text',
tagOpen: '<blockquote>\n',
tagClose: '\n</blockquote>',
sampleText: 'Block quote'
},
{
imageId: 'button-insert-table',
imageFile: '//upload.wikimedia.org/wikipedia/en/6/60/Button_insert_table.png',
speedTip: 'Insert a table',
tagOpen: '{| class="wikitable"\n|',
tagClose: '\n|}',
sampleText: '-\n! header 1\n! header 2\n! header 3\n|-\n| row 1, cell 1\n| row 1, cell 2\n| row 1, cell 3\n|-\n| row 2, cell 1\n| row 2, cell 2\n| row 2, cell 3'
},
{
imageId: 'button-insert-reflink',
imageFile: '//upload.wikimedia.org/wikipedia/commons/7/79/Button_reflink.png',
speedTip: 'Insert a reference',
tagOpen: '<ref>',
tagClose: '</ref>',
sampleText: 'Insert footnote text here'
}
);
}
mw.loader.using( 'user.options', function () {
// This can be the string "0" if the user disabled the preference ([[bugzilla:52542#c3]])
if ( mw.user.options.get( 'usebetatoolbar' ) != 1 && mw.user.options.get( 'showtoolbar' ) == 1 ) {
$.when(
mw.loader.using( 'mediawiki.toolbar' ),
$.ready
).then( addExtraButtons );
}
} );
and then, refreshing the cache of the browser (?action=purge is apparently not enough) by doing:
you extend the wiki-editor to useful buttons, in particular the much needed stroke-out.