Function globalKeyHandler

docs/searcher.js:318–365

(e)

    
    // Eventhandler for keyevents on `document`
    function globalKeyHandler(e) {
        if (e.altKey || e.ctrlKey || e.metaKey || e.shiftKey || e.target.type === 'textarea' || e.target.type === 'text' || !hasFocus() && /^(?:input|select|textarea)$/i.test(e.target.nodeName)) { return; }

        if (e.keyCode === ESCAPE_KEYCODE) {
            e.preventDefault();
            searchbar.classList.remove("active");
            setSearchUrlParameters("",
                (searchbar.value.trim() !== "") ? "push" : "replace");
            if (hasFocus()) {
                unfocusSearchbar();
            }
            showSearch(false);
            marker.unmark();
        } else if (!hasFocus() && e.keyCode === SEARCH_HOTKEY_KEYCODE) {
            e.preventDefault();
            showSearch(true);
            window.scrollTo(0, 0);
            searchbar.select();
        } else if (hasFocus() && e.keyCode === DOWN_KEYCODE) {
            e.preventDefault();
            unfocusSearchbar();
            searchresults.firstElementChild.classList.add("focus");
        } else if (!hasFocus() && (e.keyCode === DOWN_KEYCODE
                                || e.keyCode === UP_KEYCODE
                                || e.keyCode === SELECT_KEYCODE)) {
            // not `:focus` because browser does annoying scrolling
            var focused = searchresults.querySelector("li.focus");
            if (!focused) return;
            e.preventDefault();
            if (e.keyCode === DOWN_KEYCODE) {
                var next = focused.nextElementSibling;
                if (next) {
                    focused.classList.remove("focus");
                    next.classList.add("focus");
                }
            } else if (e.keyCode === UP_KEYCODE) {
                focused.classList.remove("focus");
                var prev = focused.previousElementSibling;
                if (prev) {
                    prev.classList.add("focus");
                } else {
                    searchbar.select();
                }
            } else { // SELECT_KEYCODE
                window.location.assign(focused.querySelector('a'));
            }
        }
    }
    
    function showSearch(yes) {
        if (yes) {