/**
 * Created by Pascal on 30/09/15.
 */
$(function() {
    resizer();

    $( window ).resize(function() {
       resizer();
    });

    $( window).scroll(function(){
       scroller();
    });

    $('svg.arrows').click(function(){
        $("html, body").animate({ scrollTop: ($("svg.arrows").offset().top + 65) }, 1000);
    });

});

function resizer(){
    if($('.header-image')){
        //$('.header-image img').height($( window ).height() - 100);
    }
}

var buggy = false;

function scroller(){
    if($(window).scrollTop()<= 10 ){
        $('.scrolled').removeClass('scrolled');
    }
    else{
        $('header').addClass('scrolled');
        $('.header-image').addClass('scrolled');
    }


    if(($('.sticky-previous-next').length > 0)) {
        if ($(window).scrollTop() + $(window).height() <= ($(document).height() - 370)) {
            $('.sticky-previous-next').removeClass('hide');
        }
        else{
            $('.sticky-previous-next').addClass('hide');
        }
    }
}


function isElementFullInViewport(el) {
    //special bonus for those using jQuery
    if(el.length > 0){
        if (typeof jQuery === "function" && el instanceof jQuery) {
            el = el[0];
        }

        var rect = el.getBoundingClientRect();

        return (
            rect.top >= 0 &&
            rect.bottom <= (window.innerHeight || $(window).height())
        );
    }
}

function isElementPartInViewport(el)
{
    if(el.length > 0) {
        //special bonus for those using jQuery
        if (typeof jQuery !== 'undefined' && el instanceof jQuery) el = el[0];

        var rect = el.getBoundingClientRect();
        // DOMRect { x: 8, y: 8, width: 100, height: 100, top: 8, right: 108, bottom: 108, left: 8 }
        var windowHeight = (window.innerHeight || document.documentElement.clientHeight);
        var windowWidth = (window.innerWidth || document.documentElement.clientWidth);

        var vertInView = (rect.top <= windowHeight) && ((rect.top + rect.height) >= 0);
        var horInView = (rect.left <= windowWidth) && ((rect.left + rect.width) >= 0);

        return (vertInView && horInView);
    }
}

function isElementPartExtraInViewport(el, margin)
{
    if(el.length > 0) {
        //special bonus for those using jQuery
        if (typeof jQuery !== 'undefined' && el instanceof jQuery) el = el[0];

        var rect = el.getBoundingClientRect();
        // DOMRect { x: 8, y: 8, width: 100, height: 100, top: 8, right: 108, bottom: 108, left: 8 }
        var windowHeight = (window.innerHeight || document.documentElement.clientHeight);
        var windowWidth = (window.innerWidth || document.documentElement.clientWidth);

        var vertInView = (rect.top <= (windowHeight - margin)) && ((rect.top + rect.height) >= 0);
        var horInView = (rect.left <= windowWidth) && ((rect.left + rect.width) >= 0);

        return (vertInView && horInView);
    }
}