MediaWiki:Common.js

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/* Any JavaScript here will be loaded for all users on every page load. */
// Prevent right-click, double-click, and text selection
(function () {
  // Disable right-click everywhere
  document.addEventListener('contextmenu', function (e) {
    e.preventDefault();
  });

  // Prevent text selection start
  document.addEventListener('selectstart', function (e) {
    e.preventDefault();
  });

  // Block double-click and triple-click
  document.addEventListener('mousedown', function (e) {
    if (e.detail > 1) { // 2 = double click, 3 = triple click
      e.preventDefault();
    }
  });
})();