// JavaScript Document

var SmartHoverBox = new Class({   
    Implements: Options, 
    options: { 
        boxTimer        : 300, // how many milliseconds before the box hides after mouseleave
        xOffset         : -10, // up and down offset in px - accepts negative ints
        yOffset         : -10, // left and right offset in px - accepts negative ints
        smartBoxSuffix  : '_smarthbox', //suffix that creates a hover box
        smartBoxClose   : 'smarthbox_close', //this class will add "close" click event to element
        lockY           : 'none', // 'top', 'bottom'
        lockX            : 'none' // 'left', 'right'
    }, 
    initialize: function(options) { 
        this.setOptions(options);
        this.pos = [];
        this.smartBoxes = $$('[id$=' + this.options.smartBoxSuffix + ']');
        this.closeElem = $(document.body).getElements('.' + this.options.smartBoxClose);
        this.closeElem.addEvent('click', function(e){
            e.preventDefault();                               
            this.closeBox();
        }.bind(this)).setStyle('cursor', 'pointer');
        this.smartBoxes.setStyle('display', 'none');
        this.showHideBox();
        this.closeBox();
    },
    showHideBox: function(){
        this.smartBoxes.each(function(item){
            this.getCurrentBox(item);
            item.addEvent('mouseleave', function(){this.closeBoxTimer()}.bind(this));   
            item.addEvent('mouseenter', function(){$clear(this.delay)}.bind(this));
            $(this.currentBox).addEvent('mouseleave', function(){this.closeBoxTimer()}.bind(this));       
            $(this.currentBox).addEvent('mouseenter', function(){   
                this.getCurrentBox(item);
                $clear(this.delay);
                this.smartBoxes.setStyle('display', 'none');
                item.setStyles({ display: 'block', position: 'absolute' }).setStyle('z-index', '1000000');               
               
                this.positioning(item, this.currentBox);
               
            }.bind(this)).setStyle('cursor', 'pointer');   
        }.bind(this));
    },
    closeBoxTimer: function(){
        this.hideEm = function(){this.closeBox()}.bind(this);
        this.delay = this.hideEm.delay(this.options.boxTimer);
    },
    closeBox: function() {
        this.smartBoxes.setStyle('display', 'none');
    },
    positioning: function(currentItem, currentLink){
        this.pos.windowSize = $(window).getSize();
        this.pos.windowScroll = $(window).getScroll();
        this.pos.boxSize = currentItem.getSize();
        this.pos.inputPOS = $(currentLink).getCoordinates();
        this.pos.inputCOOR = $(currentLink).getPosition();
        this.pos.inputSize = $(currentLink).getSize();
        this.pos.halfWindowY = this.pos.windowSize.y / 2;
        this.pos.halfWindowX = this.pos.windowSize.x / 2;
        this.pos.inputBottomPOS = this.pos.inputPOS.top + this.pos.inputSize.y;
        this.pos.inputBottomPOSAdjust = this.pos.inputBottomPOS - this.pos.windowScroll.y
        this.pos.inputLeftPOS = this.pos.inputPOS.left + this.options.xOffset;
        this.pos.inputRightPOS = this.pos.inputPOS.right;
        this.pos.leftOffset = this.pos.inputCOOR.x + this.options.xOffset;
       
        if(this.pos.halfWindowY < this.pos.inputBottomPOSAdjust && this.options.lockY == 'none' || this.options.lockY == 'top') {
            currentItem.setStyle('top', this.pos.inputPOS.top - this.pos.boxSize.y - this.options.yOffset); //top
            if (this.pos.inputLeftPOS < this.pos.halfWindowX && this.options.lockX == 'none' || this.options.lockX == 'left' ) {
                currentItem.setStyle('left', this.pos.leftOffset); //top left
            }
            else { currentItem.setStyle('left', (this.pos.inputPOS.right - this.pos.boxSize.x) - this.options.xOffset); }; //top right
        }
        else {
            currentItem.setStyle('top', this.pos.inputBottomPOS + this.options.yOffset); //bottom
            if (this.pos.inputLeftPOS < this.pos.halfWindowX && this.options.lockX == 'none' || this.options.lockX == 'left' ) {
                currentItem.setStyle('left', this.pos.leftOffset); //bottom left
            }
            else { currentItem.setStyle('left', (this.pos.inputPOS.right - this.pos.boxSize.x) - this.options.xOffset);};//bottom right
        };
    },
    getCurrentBox: function(currentItem){
        this.currentBox = currentItem.getProperty('id');
        this.currentBox = this.currentBox.replace('' + this.options.smartBoxSuffix + '', '');   
    }
});