MediaWiki:Common.js

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$( function ()  {
/**
 * Add custom buttons in the toolbar
 *
 * @source: https://www.mediawiki.org/wiki/Snippets/Custom_buttons_in_the_toolbar
 * @rev: 2
 */

if ({ edit:1, submit:1 }[mw.config.get('wgAction')]) {
	mw.loader.using('mediawiki.action.edit', function () {
		if (mw.toolbar) {

			// Wikitable
			mw.toolbar.addButton(
				'//upload.wikimedia.org/wikipedia/commons/0/04/Button_array.png',
				'Insert a table',
				'{| class="wikitable"\n|-\n',
				'\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',
				'mw-editbutton-wikitable'
			);

			// Redirect
			mw.toolbar.addButton(
				'//upload.wikimedia.org/wikipedia/en/c/c8/Button_redirect.png',
				'Redirect',
				'#REDIRECT [[',
				']]',
				'Insert text',
				'mw-editbutton-redirect'
			);
		}
	});
}
} );


window.onload() = function(){
  overlay       = document.getElementById('overlay');
  buttonConfirm = document.getElementById('button-confirm');
  buttonCancel  = document.getElementById('button-cancel');
  
  goBack        = function(){ history.back() };
  
  if(overlay != null){
    hideOverlay   = function(){ overlay.style.visibility = 'hidden' };
    if(buttonCancel != null){
      buttonCancel.addEventListener('click', goBack );
    }
    if(buttonConfirm != null){
      buttonConfirm.addEventListener('click', hideOverlay );
    }
  }
}