MediaWiki:Common.js

Note: After publishing, you may have to bypass your browser's cache to see the changes.

• Firefox / Safari: Hold Shift while clicking Reload, or press either Ctrl-F5 or Ctrl-R (⌘-R on a Mac)
• Google Chrome: Press Ctrl-Shift-R (⌘-Shift-R on a Mac)
• Edge: Hold Ctrl while clicking Refresh, or press Ctrl-F5.

(function () {

if (new URLSearchParams(window.location.search).get('embed') === '1') {
    document.body.classList.add('rpgc-embed');
}

    function applyWidthMode() {
        var mode = localStorage.getItem('rpgc-width-mode') || 'readable';

        document.body.classList.remove('rpgc-readable-width', 'rpgc-full-width');
        document.body.classList.add(mode === 'full' ? 'rpgc-full-width' : 'rpgc-readable-width');

        var button = document.getElementById('rpgc-width-toggle');
        if (button) {
            button.textContent = mode === 'full' ? 'Readable width' : 'Full width';
        }
    }

    function addToggle() {
        if (document.getElementById('rpgc-width-toggle')) return;

        var title = document.querySelector('.firstHeading, .mw-first-heading');
        if (!title) return;

        var button = document.createElement('button');
        button.id = 'rpgc-width-toggle';
        button.type = 'button';

        button.addEventListener('click', function () {
            var current = localStorage.getItem('rpgc-width-mode') || 'readable';
            localStorage.setItem('rpgc-width-mode', current === 'full' ? 'readable' : 'full');
            applyWidthMode();
        });

        title.appendChild(button);
        applyWidthMode();
    }

    $(addToggle);
    mw.hook('wikipage.content').add(addToggle);
})();