wKeybindings

/*
wKeyBindings V0.2

Copyright (C) 2008  Jan Hoersch
*/

// MOOTOOLS REQUIRED http://mootools.net
//  At Least: V1.11

Array.implement({

    /**
     * compare - Returns true for equal Arrays
     *
     * @example
     *  [1,4,5,2,5].compare([4,5,1,5,2]) == true
     *  [1,4,5,2,5].compare([1,4,5,2,5},true) == true
     *  [1,4,5,2,5].compare([4,1,2,5,5},true) == false
     *  [1,3,2].compare([2,4,1]) == false
     *
     * @return  {Boolean}
     * @param   {Object} Array
     *      {Boolean} Position Sensitiv
     */
    compare: function(array,position) {
        if(this.length != array.length) return false;

        if(position) {
            for(i = 0; i < this.length; i++) {
                if(this[i] != array[i]) return false;
            }
        } else {
            var contain = false;
            for(i = 0; i < this.length; i++) {
                for(y = 0; y < array.length; y++) {
                    if(this[i] == array[y]) {
                        array = array.unset(y);
                        contain = true;
                        break;
                    }
                }
                if(!contain) {
                    return false;
                } else {
                    contain = false;
                }
            }
        }
        return true;
    },


    /**
     * unset - Unsetting a element in the array by there Index
     *
     * @example
     *  [1,5,3].unset(1) == [1,3]
     *
     * @return  {Object} Array
     * @param   {Object} Array
     */
    unset: function(key) {
        var buffer = new Array();
        this.each(function(item,index){
            if(key != index) {
                buffer[buffer.length] = item;
            }
        });
        return buffer;
    },
});

wKeybindings = new Class({
    options: {
        pressedKey: [],
        actions: [],
        keys: {
            'tab' : 9,
            'enter' : 13,
            'shift' : 16,
            'lstrg' : 17,
            'lalt' : 18,
            'capslock' : 20,

            'space' : 32,

            'left' : 37,
            'up' : 38,
            'right' : 39,
            'down' : 40,

            '0' : 48,
            '1' : 49,
            '2' : 50,
            '3' : 51,
            '4' : 52,
            '5' : 53,
            '6' : 54,
            '7' : 55,
            '8' : 56,
            '9' : 57,

            'a' : 65,
            'b' : 66,
            'c' : 67,
            'd' : 68,
            'e' : 69,
            'f' : 70,
            'g' : 71,
            'h' : 72,
            'i' : 73,
            'j' : 74,
            'k' : 75,
            'l' : 76,
            'm' : 77,
            'n' : 78,
            'o' : 79,
            'p' : 80,
            'q' : 81,
            'r' : 82,
            's' : 83,
            't' : 84,
            'u' : 85,
            'v' : 86,
            'w' : 87,
            'x' : 88,
            'y' : 89,
            'z' : 90,

            'lApfel' : 91,
            'rApfel' : 93,
        }
    },

    initialize: function(options) {
        this.setOptions(options);

        window.addEvent('keydown', function(event) {
            event = new Event(event);
            if(!this.options.pressedKey.contains(event.code)) {
                this.options.pressedKey.push(event.code);
            }
            return this.check();
        }.bind(this));

        window.addEvent('keyup', function(event) {
            event = new Event(event);
            this.options.pressedKey.remove(event.code);
        }.bind(this));
    },

    check: function() {
        this.options.actions.each(function(item, index) {
            if(item[0].compare(this.options.pressedKey)) {
                eval(item[1]);

                this.options.pressedKey.empty();
                return true;
            }
        },this);
    },

    addAction: function(pKey,script) {
        pKey = pKey.map(function(item,index) {
            if($type(item) == 'string') {
                eval('ret = this.options.keys.'+item+';');

                return ret;
            }
            else if($type(item) == 'number') {
                return item;
            }
        },this);

        this.options.actions.push([pKey,script]);
    }
});
wKeybindings.implement(new Events, new Options);