revolver.another.js

gistfile1.js

function revolverSetUp (config) {
            var focus = config.focus || 0,
                list  = tags(config.doms.list, 'li'),
                last  = list.length - 1,
                lock  = false,

            pos  = function (n) {
                        if (! isNumber(n)) n = 0;
                        config.doms.list.style.top = (config.doms.defaultTop - n) + "px";
            },

            reWidth = function (domids) {
                        var _width = (getBrowserWidth() - (config.doms.marginWidth * 2)) + "px";

                        foreach(domids, function (domid) {
                            config.doms[domid].style.width = _width;
                        });
            };

            addEvent(window, 'resize', function () { reWidth(qw('list focus')); });

            pos(config.scroll.size * focus);
            reWidth(qw('list focus'));

            return {
                roll : function (getNextFocus) {
                        if (! lock) {
                            var next = ((! isUndefined(getNextFocus)) && typeof getNextFocus === 'function') ? getNextFocus(focus) : focus;

                            if (next === 'LAST' || next > last) next = last;
                            if (next < 0)                       next = 0;

                            if (next !== focus) {
                                var isUp   = (focus > next) ? true : false,
                                    start  = focus * config.scroll.size,
                                    finish = next  * config.scroll.size;

                                lock = setInterval(function () {
                                    if ((isUp) ? (start < finish) : (start > finish)) {
                                        clearInterval(lock);
                                        lock = false;
                                        pos(finish);
                                        return;
                                    }
                                    start = (isUp) ? (start - config.scroll.pitch) : (start + config.scroll.pitch);
                                    pos(start);
                                }, config.scroll.interval);

                                focus = next;
                            }
                        }

                        return this;
                },
                fire : function (func) {
                        var link = tags(config.doms.list, 'a')[focus];

                        if ((! isUndefined(func)) && typeof func === 'function') {
                            func(link, focus);
                        } else {
                            document.location = link.href;
                        }

                        return this;
                }
            };
}

addEvent(window, 'load', function () {

var config, revolver, kb;

config = {
    focus : 3,
    doms    : {
        list        : gid('main_ul'),
        focus       : gid('focus'),
        defaultTop  : (138 + 6),
        marginWidth : (24 + 6)
    },
    scroll  : {
        size        : 36,
        pitch       : 6,
        interval    : 20
    }
};
revolver = revolverSetUp(config);
kb       = new Hotkey;


var _inc, _dec, _inc3, _dec3, _toTop, _toLast, _revolverFire, _help;

_inc = function () {
     revolver.roll(function (now) { return now + 1; });
};
_dec = function () {
     revolver.roll(function (now) { return now - 1; });
};
_inc3 = function () {
     revolver.roll(function (now) { return now + 3; });
};
_dec3 = function () {
     revolver.roll(function (now) { return now - 3; });
};
_toTop = function () {
     revolver.roll(function (now) { return 0; });
};
_toLast = function () {
     revolver.roll(function (now) { return 'LAST'; });
};
_revolverFire = function () {
    revolver.fire(function (link, now) {
            link.style.color = "#ff9933";
            setTimeout(function () { document.location = link.href; }, 250);
    });
};
_help = function () {
        var _off = false;
            return function () {
                      _off = ! _off;
                      gid('navi').style.display = (_off) ? 'none' : 'block';
            };
}();


kb.add('j', _inc  ).add('k', _dec)
  .add('h', _inc3 ).add('l', _dec3)
  .add('g', _toTop).add('G', _toLast)
  .add(qw('space enter'), _revolverFire)
  .add('q', _help)
;

}, false);

1;