LDR - Drive (fixed for Chrome)

LDR-Drive.js

// original:
//   http://userscripts.org/scripts/show/12584

(function(window, load){

    if (this.chrome && !load){
        var source = '(' + arguments.callee.toString() + ')(this, true);';
        var script = document.createElement('script');
        script.appendChild(document.createTextNode(source));
        document.body.appendChild(script);
        return;
    }

    function init(){
        window.Keybind.remove('j');
        keyTapper('J', window.Control.go_next);

        window.Keybind.remove('k');
        keyTapper('K', window.Control.go_prev);

        window.Keybind.remove('f');
        keyTapper('F', window.Control.go_next);

        window.Keybind.remove('d');
        keyTapper('D', window.Control.go_prev);

        keyTapper('Q', window.Control.pin);
        keyTapper('L', window.Control.read_next_subs);
        keyTapper(';', window.Control.read_prev_subs);

        window.Keybind.remove('s');
        keyTapper('S', window.Control.read_next_subs);

        window.Keybind.remove('a');
        keyTapper('A', window.Control.read_prev_subs);

        keyTapper('SHIFT+F', window.Control.feed_next);
        keyTapper('SHIFT+D', window.Control.feed_prev);

        window.Control.toggle_fullscreen();
    }

    function keyTapper(keys, handler, opt){
        const specialKeys = {
            8   : 'BACK',
            9   : 'TAB',
            13  : 'ENTER',
            19  : 'PAUSE',
            20  : 'CAPS_LOCK',
            27  : 'ESCAPE',
            32  : 'SPACE',
            33  : 'PAGE_UP',
            34  : 'PAGE_DOWN',
            35  : 'END',
            36  : 'HOME',
            37  : 'LEFT',
            38  : 'UP',
            39  : 'RIGHT',
            40  : 'DOWN',
            45  : 'INSERT',
            46  : 'DELETE',
            91  : 'WINDOWS_LEFT',
            92  : 'WINDOWS_RIGHT',
            112 : 'F1',
            113 : 'F2',
            114 : 'F3',
            115 : 'F4',
            116 : 'F5',
            117 : 'F6',
            118 : 'F7',
            119 : 'F8',
            120 : 'F9',
            121 : 'F10',
            122 : 'F11',
            123 : 'F12',

            144 : 'NUM_LOCK',
            145 : 'SCROLL_LOCK',

            // 記号 ( Shift キーを押していた時に表示される文字列 )
            109 : '=',
            222 : '~',
            220 : '|',
            192 : '`',
            219 : '{',
            61  : '+',
            59  : '*',
            221 : '}',
            188 : '<',
            190 : '>',
            191 : '?',
            226 : '_',

            // オリジナル keyTapper にはないやつ
            186 : ';',
        };

        function keyString(e){
            var code = e.keyCode;
            var res = [];
            e.shiftKey && res.push('SHIFT');
            e.ctrlKey  && res.push('CTRL');
            e.altKey   && res.push('ALT');
            if (code < 16 || 18 < code){
                res.push(specialKeys[code] || String.fromCharCode(code));
            }
            return res.join('+');
        }

        function cancel(e){
            e.preventDefault();
            e.stopPropagation();
        }

        var opts = {};
        var intervalIDs = {};
        var downed = {};

        var keydown = function(e){
            if(e.target.tagName.match(/input|textarea/i))
                return;

            var key = keyString(e);
            var keyCode = e.keyCode;
            var opt = opts[key];

            if(opt && opt.cancel)
                cancel(e);

            if(
                !opt || 
                intervalIDs[keyCode] != null || 
                (!opt.repeat && downed[keyCode])){
                return;
            }

            opt.handler(e, downed[keyCode], opt);
            downed[keyCode] = true;

            var now = (new Date()).getTime();
            var wait = now - opt.last;
            if(wait<1500){
                opt.wait = Math.max(100, Math.floor(wait * 0.9));
            }
            opt.last = now;
            document.removeEventListener('keydown', keydown, true);

            // 以降のキーリピートは setTimeout でエミュレートする
            intervalIDs[keyCode] = setTimeout(function(){
                opt.handler(e, true, opt);
                opt.last = 0;// 繰り返しが始まったらタップをクリアする
                intervalIDs[keyCode] = setTimeout(arguments.callee, opt.wait);
            }, opt.wait);
        }
        document.addEventListener('keydown', keydown , true);

        var keyup = function(e){
            var keyCode = e.keyCode;

            if(!downed[keyCode])
                return;

            downed[keyCode] = false;
            if(intervalIDs[keyCode] == null)
                return;

            clearTimeout(intervalIDs[keyCode]);
            delete intervalIDs[keyCode];
            document.addEventListener('keydown', keydown, true);
        };
        document.addEventListener('keyup', keyup, true);

        (keyTapper = function(keys, handler, opt){
            opt = opt || {};
            keys.split(',').forEach(function(key){
                opts[key] = {
                    handler : handler,
                    repeat  : opt.repeat != null ? opt.repeat : true,
                    last    : 0,
                    wait    : opt.wait || 300,
                    cancel  : opt.cancel != null ? opt.cancel : true,
                };
            });
        })(keys, handler, opt)

        keyTapper.clear = function(){
            opts = {};
        }

    }

    try{
        var init_after_loaded = function(){
            setTimeout(function(){
                (typeof window.Keybind === typeof void 0)?
                    init_after_loaded(): init();
            }, 500);
        };
        init_after_loaded();
    }
    catch(e){
        console.log(e);
    }

})(this.unsafeWindow);