function init( $pageContainer ) { $pageContainer.find( '.ext-discussiontools-init-timestamplink' ).on( 'click', function () { copyLink( this.href ); } ); } function copyLink( link ) { var $win = $( window ); var scrollTop = $win.scrollTop(); var $tmpInput = $( '<input>' ) .val( link ) .addClass( 'noime' ) .css( { position: 'fixed', top: 0 } ) .appendTo( 'body' ) .trigger( 'focus' ); $tmpInput[ 0 ].setSelectionRange( 0, link.length ); var copied; try { copied = document.execCommand( 'copy' ); } catch ( err ) { copied = false; } if ( copied ) { mw.notify( mw.msg( 'discussiontools-permalink-comment-copied' ) ); } $tmpInput.remove(); // Restore scroll position, can be changed by setSelectionRange, or hash navigation function afterNextScroll() { // On desktop we can restore scroll immediately after the scroll // event, preventing a scroll flicker. $win.scrollTop( scrollTop ); // On mobile, we need to wait another execution cycle (setTimeout) // before the scroll is rendered (and not requestAnimationFrame). setTimeout( function () { $win.scrollTop( scrollTop ); } ); } // Restore scroll position when the scroll event fires. // setTimeout does't reliably wait long enough for the native // scroll to happen. $win.one( 'scroll', afterNextScroll ); // If we happened to be in the exact correct position, 'scroll' won't fire, // so clear the listener after a short delay setTimeout( function () { $win.off( 'scroll', afterNextScroll ); }, 1000 ); } module.exports = { init: init };