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19 results

header_magic.js

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  • Forked from Stud.IP / Stud.IP
    1544 commits behind the upstream repository.
    Jan-Hendrik Willms's avatar
    Jan-Hendrik Willms authored
    Closes #4005
    
    Merge request studip/studip!2860
    cc9daefe
    History
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    header_magic.js 683 B
    import NavigationShrinker from './navigation_shrinker.js';
    import Scroll from './scroll.js';
    
    let fold;
    let was_below_the_fold = false;
    
    const scroll = function(scrolltop) {
        var is_below_the_fold = scrolltop > fold,
            menu;
        if (is_below_the_fold !== was_below_the_fold) {
            $('body').toggleClass('fixed', is_below_the_fold);
    
            was_below_the_fold = is_below_the_fold;
        }
    };
    
    const HeaderMagic = {
        enable() {
            fold = $('#navigation-level-1').height();
            Scroll.addHandler('header', scroll, true);
        },
        disable() {
            Scroll.removeHandler('header');
            $('body').removeClass('fixed');
        }
    };
    
    export default HeaderMagic;